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  • Industrial Chemistry  (213)
  • Engineering General  (143)
  • Wiley-Blackwell  (356)
  • Annual Reviews
  • Blackwell Publishing Ltd
  • PANGAEA
  • 1980-1984
  • 1975-1979  (143)
  • 1970-1974
  • 1955-1959  (213)
  • 1976  (143)
  • 1957  (213)
Collection
Keywords
Publisher
  • Wiley-Blackwell  (356)
  • Annual Reviews
  • Blackwell Publishing Ltd
  • PANGAEA
Years
  • 1980-1984
  • 1975-1979  (143)
  • 1970-1974
  • 1955-1959  (213)
Year
  • 1
    Electronic Resource
    Electronic Resource
    Masthead (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957) 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330290101
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  • 2
    Electronic Resource
    Electronic Resource
    Forschungsergebnisse und Forschungstendenzen in der TrocknungstechnikVorgetragen auf dem Jahrestreffen der Verfahrens-Ingenieure am 2. Oktober 1956 in Hamburg. (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 170-176 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Durch die bisherigen Forschungsarbeiten wurden die Gesetzmäßigkeiten für die einzelnen Teilvorgänge der Trocknung und für deren Zusammenwirken unter den verschiedenartigen Bedingungen weitgehend aufgeklärt. Damit wurde es möglich, das Trocknungsverhalten der einzelnen Trocknungsgüter zu analysieren und spezielle Trocknungseigenschaften zu definieren, bei deren Kenntnis die wichtigsten charakteristischen Punkte im Trocknungsverlauf im voraus bestimmt werden können.
    Additional Material: 10 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330290310
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  • 3
    Electronic Resource
    Electronic Resource
    Neuere Ergebnisse wärmetechnischer Grundlagenforschung (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 176-186 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Zunächst wird über Untersuchungen berichtet, bei denen Wärmeübergang, Druckabfall sowie die Temperatur- und Geschwindigkeitsverteilung im rauhen Rohr gemessen wurden. Die Ergebnisse konnten allgemeingültig dargestellt und theoretisch begründet werden. Ferner wird auf wirtschaftliche Fragen und den Einfluß von Schmutzschichten im Rohr auf den Wärmeübergang eingegangen. Bei Untersuchungen an einem linsenförmigen Rohr und außen beheizten Ringspalten stand die Frage nach dem maßgebenden gleichwertigen Durchmesser im Vordergrund. Weiterhin wurde der Wärmeübergang zwischen staubhaltiger Luft und einer Kugelschüttung gemessen; dabei war kein merklicher Einfluß des Staubgehaltes zu erkennen. Sehr eingehend wurde schließlich das Strömungsverhalten von Rieselfilmen untersucht. Die kritische Reynolds-Zahl konnte zu 400 bestimmt werden. Außerdem wurden die Höhe der Wellen, die Filmdicke und die Wandschubspannung gemessen, so daß auch das Widerstandsgesetz der welligen Filmströmung angegeben und eine Näherungstheorie für den Wärmeübergang aufgestellt werden konnte.
    Additional Material: 22 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330290311
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  • 4
    Electronic Resource
    Electronic Resource
    Arbeitsgebiete und Grundlagen der bergmännischen VerfahrenstechnikVorgetragen beim Jahrestreffen der Verfahrens-Ingenieure am 2. Okt. 1956 in Hamburg. (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 201-206 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Aufbereitung ist angewandte Physik, physikalische Technologie und bergmännische Verfahrenstechnik. In der Verbrauchsgüter- und Genußmittelindustrie werden die gleichen Grundverfahren angewandt wie bei der Aufbereitung der Erze, der Kohlen, der Steine und Erden. Zweckentsprechende Kombinationen dieser Grundverfahren führen zur erfolgreichen Aufbereitung bergmännisch gewonnener Haufwerke. Die gleichen Grundverfahren und Grundvorgänge verbinden den Verfahrenstechniker mit dem Aufbereiter und veranlassen ihn, die Aufbereitung als „bergmännische Verfahrenstechnik“ zu kennzeichnen.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330290314
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  • 5
    Electronic Resource
    Electronic Resource
    Versammlungsberichte (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 221-223 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330290318
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  • 6
    Electronic Resource
    Electronic Resource
    Einige neue Verfahrensprinzipien mit WirbelschichtenGekürzte Fassung des Vortrages, gehalten anläßlich des Jahrestreffens 1956 der Verfahrens-Ingenieure in Hamburg am 2. 10. 1956. Ausführliche Wiedergabe in Chem. Engng. Science 7, [1957]. (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 219-220 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Beschrieben werden die Wirbelschicht-Funkenentladung sowie die heiß-kalte Wirbelschicht als Arbeitsprinzipien, die es ermöglichen, schnelle, mehrstufige chemische Reaktionen abzubrechen und dabei instabile Zwischenprodukte zu erfassen.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330290317
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  • 7
    Electronic Resource
    Electronic Resource
    Neue Bücher (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 227-228 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330290321
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  • 8
    Electronic Resource
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    Automatisierung in der ChemieNach einem Vortrag von Dr. O. Winkler, Leiter der Betriebskontrolle der Chemischen Werke Hüls AG, Marl/Westf. (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 229-230 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330290322
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  • 9
    Electronic Resource
    Electronic Resource
    100 Jahre Rheinpreussen (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 232-233 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330290325
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  • 10
    Electronic Resource
    Electronic Resource
    Masthead (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957) 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330290401
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  • 11
    Electronic Resource
    Electronic Resource
    Verfahren der Standmessung und -regelung (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 250-254 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Physikalische Größen können meist auf verschiedene Weise gemessen werden. Für die Standmessung von Flüssigkeiten gibt es zahlreiche meßtechnische Möglichkeiten. Die meisten von ihnen sind einfach und gut übersehbar, und dies dürfte einer der Gründe sein, weshalb sie im Schrifttum wenig behandelt und beachtet werden. Im Zusammenhang mit der Regelung weisen sie aber interessante Kennzeichen auf, die eine eingehendere Darstellung rechtfertigen.
    Additional Material: 22 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330290404
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  • 12
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    Vermeidung von Schäden an Meßgeräten durch klimatische Einwirkungen (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 255-256 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Meßgeräte zur Betriebsüberwachung können durch klimatische Einwirkungen Schaden erleiden. Kennt man die Klimaeinwirkungen an der Verwendungsstelle des Meßgerätes, so kann man entsprechende Schutzmaßnahmen ergreifen. Die Schäden, die durch die Industrie-Atmosphäre verursacht werden, können durch Anwendung eines Meßraumes mit Fremdbelüftung vermieden werden.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330290405
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  • 13
    Electronic Resource
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    Apparatur zur Bestimmung der Explosionsgrenzen von Dampf/Luft-Gemischen brennbarer Flüssigkeiten (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 275-277 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Es wird eine handliche Apparatur zur Bestimmung der Explosionsgrenzen von Dampf/Luft-Gemischen und ihre praktische Anwendung beschrieben.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330290410
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  • 14
    Electronic Resource
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    Bestimmung des Feststoffgehaltes heißer Abgase mit der elektrischen MikrowaageGekürzte Wiedergabe eines Vortrags auf dem 19. Kolloquium des Dechema-Institutes für Apparate- und Stoffkunde, gemeinsam mit dem Arbeitskreis Verfahrenstechnik des Frankfurter VDI-Bezirksvereins am 19. Okt. 1956; vgl. a. diese Ztschr. 28, 806 [1955]. (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 262-266 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Die Anwendung der elektrischen Mikrowaage zur Registrierung von Staubgehalten ist seit mehreren Jahren Gegenstand intensiver Entwicklungsarbeit. Nachdem eine für Raumstaubmessung geeignete Anordnung vorlag, wurde die Staubgehaltsmessung in heißen Abgasen in Angriff genommen. Mit einem Versuchsmodell sind Versuche in industriellen Anlagen vorgenommen worden. Diese haben gezeigt, daß der eingeschlagene Weg grundsätzlich gangbar ist. Ein zweites Versuchsgerät, das zur Zeit erprobt wird, verspricht, sich in schrittweiser Verbesserung zum betriebssicheren Registriergerät zu entwickeln.
    Additional Material: 12 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330290408
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  • 15
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    Versammlungsberichte (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 280-281 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330290412
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  • 16
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    Feinstkornaufbereitung (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 112-115 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Das Rheax-Verfahren dient als eines der modernen Verfahren zur Klassierung und Entstaubung von Betonsand und zur Trennung von feinkörnigen Gemischen in verschiedenen Industrien. Weitere Anwendungsgebiete stehen ihm offen.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330290209
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  • 17
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    Warenzeichenrechtliche Entscheidungen des Deutschen Patentamts (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 297-299 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330290418
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  • 18
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    Das neue Dominion Ghana, Ein Riesenprojekt soll die Wirtschaft stützen (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 300-301 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330290420
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  • 19
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    Wirtschaftsnachrichten (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 301-304 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330290422
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  • 20
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    Ursachen der Korrosion, Übersichtsbericht III (Schluß)H. Grubitsch, Ursachen der Korrosion, Teil I, diese Ztschr. 27, 287-98 [1955]; Teil II, diese Ztschr. 28, 9 [1956]. Die Kapitel, Gleichungen, Bilßder, Tabellen und Fußnoten sind in Teil I bis III durchlaufend numeriert. (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 312-322 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Im ersten Teil wurden die neueren Erkenntnisse über Art und Ursachen der Korrosion, insbesonders die Anlauf- und Zundervorgänge im System Metall/Gas sowie die Thermodynamik der Korrosionsvorgänge behandelt. Im zweiten Teil wurden die Korrosionserscheinungen im System Metall/Lösung beschrieben. Während dort vor allem auf die Erscheinungen und Grundlagen der Primärreaktionen der Säurekorrosion eingegangen wurde, wird im vorliegenden abschließenden Bericht die Korrosion in neutralen Elektrolytlösungen behandelt.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330290503
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  • 21
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    Beeinflussung der elektrostatischen Aufladung strömender Kohlenwasserstoffe durch FremdsubstanzenIm Auszug vorgetragen bei der Jahrestagung der Deutschen Gesellschaft für Mineralölwissenschaften u. Kohlechemie, Goslar, 4. bis 6. Okt. 1956, vgl. Bericht in dieser Ztschr. 28, 801 [1956]. (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 323-329 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Die elektrostatische Aufladung von gereinigtem n-Heptan wurde in Abhängigkeit von Art und Menge verschiedener Zusätze (Alkohole, Peroxyde, Fettsäuren, Ester, Amine, Mercaptane, Silicone) gemessen. Der Aufladestrom war in dem Bereich von 10-18 bis 10-11Ω-1 cm-1 der Leitfähigkeit des Systems proportional. Die elektrostatische Aufladung technischer Kohlenwasserstoff-Fraktionen wurde im wesentlichen durch Oxvßationsprodukte hervorgerufen.
    Additional Material: 5 Ill.
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    URL: http://dx.doi.org/10.1002/cite.330290504
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  • 22
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    Neues aus der RektifiziertechnikAuszug aus dem Vortrag des Verfassers, gehalten beim Jahrestreffen der Verfahrens-Ingenieure am 2. Okt. 1956 in Hamburg. Ausführliche Wiedergabe in Z. Ver. dtsch. Ing. 98, 1797/1804 [1956]. (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 159-160 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330290307
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  • 23
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    Verwendung von Teilchen-Beschleunigern in der VerfahrenstechnikVorgetragen beim Jahrestreffen der Verfahrens-Ingenieure am 2. Okt. 1956 in Hamburg. (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 165-169 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Heute bekannte Anwendungsgebiete für energiereiche Strahlung werden zusammengestellt und einige Grundlagen erörtert. Die Bestrahlung von pharmazeutischen und medizinischen Produkten zur Sterilisation, die Behandlung von Lebensmitteln und die Härtung von thermoplastischen Kunststoffen werden bereits erfolgreich ausgenutzt. Gesichtspunkte für die technische Ausführung werden angegeben und ein brauchbarer Teilchen-Beschleuniger im Vergleich zu den vorhandenen Möglichkeiten besprochen. Die erweiterte Anwendung von energiereicher Strahlung in der Verfahrenstechnik erfordert noch eingehende Forschungsarbeit.
    Additional Material: 9 Ill.
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    URL: http://dx.doi.org/10.1002/cite.330290309
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  • 24
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    Halbwertgröße als Bemessungseinheit bei stationärem AustauschVorgetragen auf dem Jahrestreffen der Verfahrens-Ingenieure am 2. Oktober 1956 in Hamburg. (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 187-197 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Stoff- und Wärmeaustausch gekoppelt mit Stoffumwandlung an einer Wand kann im Enthalpie-Diagramm übersichtlich verfolgt werden. Mit Benutzung von Halbwertflächen kann der Zustandsverlauf noch vor der Festlegung der Abmessungen dimensionslos ermittelt werden. Beispiele: Verdunstung, Ammoniak-Synthese, Vergasung.
    Additional Material: 20 Ill.
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    URL: http://dx.doi.org/10.1002/cite.330290312
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  • 25
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    Verfahren zur Kälteerzeugung unter -100° CVorgetragen beim Jahrestreffen der Verfahrens-Ingenieure am 2. Okt. 1956 in Hamburg. (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 198-200 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Viele chemische Prozesse werden bei Temperaturen zwischen - 100° und - 194°, der Temperatur der flüssigen Luft, durchgeführt, wobei verschiedene Verfahren zur Energieerzeugung anwendbar sind. Im folgenden wird der Wirkungsgrad der Verfahren zur Kälteerzeugung in diesem Temperaturbereich untersucht.
    Additional Material: 6 Ill.
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    URL: http://dx.doi.org/10.1002/cite.330290313
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  • 26
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    Strömungsvorgänge und Gemischbildung bei der Inbetriebnahme von BrenngasbehälternVorgetragen beim Jahrestreffen der Verfahrens-Ingenieure am 2. Okt. 1956 in Hamburg. (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 207-211 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Zur Inbetriebnahme von Kugelgasbehältern wird nach der Arbeitsweise des Gaswärme-Instituts die Luft mit dem Brenngas verdrängt. Dabei werden bestimmte, zeitlich systematisch geänderte Strömungsverhältnisse eingehalten, so daß die Behälter mit geringem Füllgasaufwand möglichst rasch und unter Bildung einer möglichst kleinen zündfähigen Schicht in Betrieb genommen werden. Die bereits mehrfach praktisch angewandte Methode ist durch Modellversuche in einer Acrylglas-Kugel erhärtet worden.
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    Umschau (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 223-226 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Additional Material: 5 Ill.
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    URL: http://dx.doi.org/10.1002/cite.330290319
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    Gleichgewichte flüssig/flüssig in einigen ternären Systemen und Gegenstrom-Extraktion in einem horizontalen Rohr. 1. Teil: Grundlagen1. Teil einer Veröffentlichung von Vorträgen des zweiten Autors, gehalten auf dem Jahrestreffen 1956 der Verfahrens-Ingenieure in Hamburg am 2. Oktober 1956 und auf der internen Arbeitssitzung des Ausschusses „Destillation, Rektifikation und Extraktion“ der VDI-Fachgruppe Verfahrenstechnik am 24./25. April 1956 in Bingen/Rhein; vgl. a. den Tagungsbericht in dieser Ztschr. 28, 589[1956]. Der 2. Teil der Arbeit erscheint demnächst in dieser Zeitschrift. (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 211-219 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Im Hinblick auf die Trennung von Trichloräthylen/Methanol-Gemischen und die Wiedergewinnung von Dimethylformamid mit Benzol als Zusatzkomponente wurden die flüssig/flüssig-Gleichgewichte der ternären Systeme Wasser/Trichloräthylen/Methanol und Benzol/Dimethylformamid/Wasser untersucht.
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    Normung (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 226-227 
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    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330290320
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    Der Stand der Automatisierung bei den Chemischen Werken Hüls (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 230-231 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330290323
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    Neue Bücher (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 420-420 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330290613
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    Masthead (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957) 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330290701
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    Zur Entwicklung der chemischen Hochdrucktechnik in Deutschland (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 237-240 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330290402
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    Wirtschaftsnachrichten (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 233-236 
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    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330290326
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    Gleitringdichtungen für Kreiselpumpen der chemischen Industrie (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 241-249 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Die Abdichtung der Wellendurchführung bei Kreiselpumpen für die chemische Industrie ist eine der wichtigsten Aufgaben des Pumpenkonstrukteurs. Die Gleitringdichtung wird immer mehr verwendet und wird in den verschiedensten Ausführungen hergestellt. An die Oberflächenglätte der beiden aufeinander gleitenden Dichtringe werden besondere Anforderungen gestellt. Die Unebenheiten an der gleitenden Oberfläche sollen unter 1 μ sein. Es wird versucht, die inneren Vorgänge der Druckentspannung zwischen den beiden Gleitringen zu erklären. Die Werkstoffe für Gleitringdichtungen, speziell für korrodierende Medien, werden besprochen, zulässige Drucke und Temperaturen werden angegeben.
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    Selektive Gasspurenmessung mit automatischen Analysengeräten (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 256-258 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Es wird ein automatisches Gasanalysengerät beschrieben, bei dem die Lichtabsorption nach chemischer Umsetzung des Gases in der Absorptionsflüssigkeit gemessen wird.
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    Neue Methoden elektrodenloser Leitfähigkeits-Messungen in der Chemie und MikrobiologieNach einem am 18. Mai 1956 auf der Chemiedozenten-Tagung in Jena gehaltenen Vortrag. (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 258-261 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Auf speziell mikrobiologische Probleme, wie z. B. die CO2-Bestimmung in der Tankabluft von Submerskulturen, den Nachweis von Stoffwechselvorgängen oder Untersuchungen über die Wirksamkeit proteolytischer Fermente, wurde die elektrodenlose Leitfähigkeitsmessung angewandt. Die hierfür entwickelten Methoden lassen sich auch auf andere Probleme übertragen.
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    Fortschritte in Methodik und Anwendung der Gefriertrocknung (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 267-275 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Am 8. und 9. Mai 1956 fand auf Einladung der Leybold-Hochvakuum-Anlagen G.m.b.H. in Köln eine Tagung über Fragen der Gefriertrocknung statt. Die Tagung wurde von etwa 140 Teilnehmern aus dem In- und Ausland besucht. Die Vorträge mit den anschließenden Diskussionen gaben einen guten Einblick in den Stand der Entwicklung und der Anwendung der Gefriertrocknung. Dieser Bericht gibt einen Überblick über die dem Referenten wichtig erscheinenden Ergebnisse der Tagung.
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    Schmelzpunktbestimmung auf 1/10 Grad. 2. Mitteilung (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 277-279 
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    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Die früher1 gegebene Skala von Fixpunktsubstanzen zwischen 100 und 282°C wurde bis 350°C erweitert; außerdem wurde eine „Eisenkugel-Apparatur“ konstruiert, welche die Bequemlichkeit des Arbeitens erhöht.
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    Umschau (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 281-290 
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    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Additional Material: 16 Ill.
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    URL: http://dx.doi.org/10.1002/cite.330290413
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    Unfallverhütung (1957)
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    Chemie Ingenieur Technik - CIT 29 (1957), S. 291-293 
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    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Additional Material: 3 Ill.
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    URL: http://dx.doi.org/10.1002/cite.330290415
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    Neue Bücher (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 295-296 
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    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330290417
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    Aus der Statistik des Deutschen Patentamts 1956 (1957)
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    Chemie Ingenieur Technik - CIT 29 (1957), S. 299-299 
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    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
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    URL: http://dx.doi.org/10.1002/cite.330290419
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    Aluminium-Projekte in Französisch-Afrika (1957)
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    Chemie Ingenieur Technik - CIT 29 (1957), S. 301-301 
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    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330290421
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    Masthead (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957) 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330290501
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    Über die stationären Zustände exothermer Gasreaktionen an porösen KatalysatorenVortrag auf der Conférence Européenne de Génie Chimique, Symposium “Calcul des Convertisseurs”, am 22. Nov. 1956 in Paris. (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 305-311 
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    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Eine Schicht poröser Körner werde von einem Gas oder Gasgemisch durchströmt, das sich an dem Feststoff katalytisch in exothermer Reaktion umsetzt oder aber mit der Substanz der Körner selbst exotherm reagiert (z. B. Verbrennung von Koks). Bei adiabatischer Arbeitsweise nimmt die Temperatur mit steigendem Umsatz längs der Schicht entsprechend der Wärmebilanz stetig zu. Infolgedessen steigt auch die Geschwindigkeitskonstante der chemischen Reaktion längs der Schicht an, und es können daher bei stark exothermen Umsetzungen, die auch bei höheren Temperaturen noch einseitig verlaufen, die Transportvorgänge von Stoff und Wärme zwischen Gasstrom und Feststoffoberfläche maßgebenden Einfluß auf die Umsatzgeschwindigkeit gewinnen. In einem solchen Falle überhitzt sich die Körnerschicht gegenüber dem Gasstrom, und es bildet sich unter Umständen in der Schicht eine Temperaturstufe aus, die dem Gasstrom entgegen an den Schichtanfang zurückwandert (Zündvorgang). Ausschlaggebend für diese Erscheinungen ist die Bilanz zwischen Wärmeerzeugung und Wärmeabfuhr an der Feststoffoberfläche; eine wichtige Rolle spielen hierbei die Reaktionsfähigkeit des Feststoffes (Porosität und innere Oberfläche) und der Wärmetransport in Längsrichtung der Schicht. Die Bedeutung und Auswirkung dieser Einflüsse werden im einzelnen aufgezeigt.
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    Behandlung fester Stoffe in Flüssigkeits-SuspensionenVorgetragen auf dem XXIXße Congrès International de Chimie Industrielle. Conférence Européenne de Génie Chimique am 21. Nov. 1956 in Paris. (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 330-332 
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    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: In der Verfahrenstechnik der kontinuierlichen Prozeßführung mit Suspensionen kann man zwei elementare Prozeßtypen unterscheiden. Der „Entmischungstyp“ ist durch lineare Kraftfelder, in denen Partikeln „sedimentieren“, gekennzeichnet. Seine charakteristische Maßgröße ist die „Flächenbelastung“, welche bei Anwendung des „Sedimentationsgleichgewichtes“ zur Berechnung des Trenneffektes dienen kann. Der „Reaktionstyp“ ist raumfüllend und wird durch die „mittlere Aufenthaltszeit“ als Maßgröße charakterisiert. Viele Prozesse der Praxis sind Überlagerungen beider Typen. Es wird eine Prozeß-Analyse zur Ermittlung von Berechnungsgrundlagen vorgeschlagen und die räumlich oder zeitlich getrennte Durchführung der Teilprozesse empfohlen. Dadurch läßt sich der Gesamtvorgang besser anpassen.
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    Messung mittlerer Temperaturen mit Thermoelementen (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 336-339 
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    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Zur Messung mittlerer Temperaturen mit Thermoelementen können drei Verfahren angewandt werden. Das genaueste Verfahren, die numerische Mittelbildung, ist zeitraubend; die einfachen Verfahren der elektrischen Mittelbildung erzeugen einen zusätzlichen Meßfehler. Die Auswahl des Meßverfahrens wird daher von den Anforderungen abhängen, die im Einzelfall zu stellen sind. Zur Erleichterung dieser Auswahl werden die drei Verfahren im folgenden einander gegenübergestellt; ihre Vor- und Nachteile werden angegeben und die zu erwartenden Meßfehler abgeschätzt.
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    Lebensdauer von Graphit-Anoden bei der technischen Chlorat-Herstellung (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 339-344 
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    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Die Graphit-Anoden werden bei der technischen Chlorat-Herstellung vor allem durch Oxydation, weniger durch Schlammbildung abgenutzt. Es wurde die Lebensdauer verschiedener Graphit-Anoden durch Versuche im Betrieb und durch Laboratoriumsversuche unter betßriebsähnlichen Bedingungen ermittelt. Hierzu wurden die durch Oxydation entstehende CO2-Menge sowie die Anodenschlamm-Menge bestimmt.
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    Versammlungsberichte (1957)
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    Chemie Ingenieur Technik - CIT 29 (1957), S. 347-352 
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    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
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    URL: http://dx.doi.org/10.1002/cite.330290510
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    Normung (1957)
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    Chemie Ingenieur Technik - CIT 29 (1957), S. 357-359 
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    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
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    URL: http://dx.doi.org/10.1002/cite.330290512
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    WIRTSCHAFTLICHES AUS DER CHEMISCHEN TECHNIK (1957)
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    Chemie Ingenieur Technik - CIT 29 (1957), S. 361-364 
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    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
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    URL: http://dx.doi.org/10.1002/cite.330290514
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    Entwicklung und Anwendung der HochdruckstähleNach einem Vortrag des Autors auf der Fachsitzung des Ausschusses Hochdrucktechnik der VDI-Fachgruppe Verfahrenstechnik am 9. 5. 1955 in Essen; vgl. diese Zeitschrift 27, 441/42 [1955]. (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 372-386 
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    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Die besonderen Werkstoffanforderungen des Hochdruckbaues nahmen ihren Anfang vor knapp einem halben Jahrhundert mit dem Beginn der Ammoniak-Synthese. Mit dem Aufzeichnen der Entwicklung in dieser Zeitspanne an markanten Beispielen wird gleichzeitig der jetzige Stand der Technik veranschaulicht. Behandelt werden insbesondere die Festigkeitsstähle des chemischen Hochdruckbaues, die druckwasserstoff-beständigen niedrig- und hochlegierten Stähle sowie die Anwendung dieser Stähle unter den Einwirkungsbedingungen verschiedener chemischer Verfahren.
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    Die Herstellung der HochdruckapparateVortrag auf der internen Fachsitzung des Fachausschusses Hochdrucktechnik der VDI-Fachgruppe Verfahrenstechnik am 9. Mai 1955 in Essen; vgl. diese Ztschr. 27, 442 [1955]. (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 387-392 
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    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Es wird über die verschiedenen Arten der Herstellung von Hochdruckhohlkörpern berichtet. Sodann werden Angaben über die Abgrenzung der verschiedenen Verfahren und die wirtschaftliche Herstellung gemacht. Abschließend werden ausgeführte Hochdruckkörper insbesondere für die Hochdrucksynthesen für Drucke bis 5000 at kurz besprochen. Es zeigt sich, daß durch eine enge Verbindung von verfahrenstechnischem und konstruktivem Denken zweckmäßige Lösungen bestehender Probleme gefunden wurden.
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    Versammlungsberichte (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 409-414 
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    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330290608
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    Direkte Berechnung der theoretischen Bodenzahl bei Destillation idealer Zweistoffgemische mit unterschiedlichen Verdampfungswärmen und bei endlichem Rücklaufverhältnis (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 675-678 
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    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Die Bodenzahl einer Kolonne wird oft graphisch ermittelt. Vereinfachend werden meist die molaren Verdampfungswärmen für alle Komponenten gleich groß angenommen. Will man die Unterschiede in den Verdampfungswärmen, die bei scharfen Bedingungen einen erheblichen Einfluß auf die Bodenzahl haben können, berücksichtigen, so wird das zeichnerische Verfahren sehr kompliziert. Es wurde deshalb versucht, die Bodenzahl unmittelbar zu berechnen. Der Grundgedanke der Berechnung der Mindestbodenzahl (bei einem Rücklaufverhältnis v = ∞) führt auf elementarem Weg zu einer Lösung mit drei geometrisch anschaulichen Größen.
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    Versammlungsberichte (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 682-688 
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    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330291010
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    Neue Apparate und Meßgeräte für Betrieb und Labor (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 693-693 
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    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
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    URL: http://dx.doi.org/10.1002/cite.330291012
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    Neue Bücher (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 695-696 
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    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330291014
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    Wirtschaftliches aus der Chemischen Technik (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 697-700 
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    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
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    URL: http://dx.doi.org/10.1002/cite.330291016
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    Synthetischer Kryolith aus kieselsäurereichen Roh- und Abfall-Flußspaten. Flußspataufbereitung. II. Teil (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 721-726 
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    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Es wird ein wärmetechnisch günstiges Ringaufbereitungsverfahren für gangart- insbes. kieselsäurereiche Flußspate beschrieben, das durch Kombination eines in flüssigem Medium verlaufenden Naßaufschlusses mit einem Trockenaufschluß, der mit konz. heißer Schwefelsäure arbeitet, gekennzeichnet ist. Die entstehende Fluorkieselsäure wird zur Herstellung von künstlichem Kryolith verwendet.
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    Flüssigkeitsdurchmischung in engen Blasensäulen (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 727-732 
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    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Beim Durchgang eines stationären Blasenstroms durch eine Flüssigkeitssäule wird die Flüssigkeit durchmischt. Der Durchmischungsvorgang läßt sich formal wie ein Diffusionsvorgang behandeln, wobei der Diffusionskoeffizient durch einen Durchmischungskoeffizienten ersetzt werden muß. Es wird eine Methode zur Bestimmung solcher Koeffizienten mitgeteilt sowie der Durchmischungsvorgang in engen Blasensäulen diskutiert.
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    Versammlungsberichte (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 743-747 
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    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330291107
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    Unfallverhütung (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 752-752 
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    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
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    URL: http://dx.doi.org/10.1002/cite.330291109
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    Neue Bücher (1957)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 29 (1957), S. 754-756 
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    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330291111
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    Calculation of eigenvalues of the Helmholtz equation by an integral equation (1976)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 10 (1976), S. 59-66 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: A method is presented to calculate the eigenvalues of the Helmholtz equation Δ2ø + k2ø = 0 in a two-dimensional area when ø vanishes on the boundary. The method is based on an integral equation, which can be easily solved numerically. Results obtained for circular and rectangular geometries are also given and compared to the exact values.
    Additional Material: 1 Ill.
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    Panel flutter optimization - a refined finite element approach (1976)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 10 (1976), S. 77-91 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: This paper presents the results of an aeroelastic optimization study. In this study the weight of a large aspect ratio panel immersed in high Mach number supersonic flow is minimized subject to the requirement that a critical aeroelastic parameter for flutter be held within specified limits. A refined finite element technique is used to model the panel flutter equilibrium equations, equations which act as constraints on the design search. The optimization mechanism itself is studied and discussed to provide qualitative results which may be useful to the solution of other aeroelastic optimization problems. The numerical results of this investigation are compared to converged numerical results to illustrate finite element accuracy. The results of the study show that the weight savings and material distribution found with an effective finite element model are comparable to those found by more complicated numerical methods.
    Additional Material: 7 Ill.
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    A computer solution for two-dimensional fluid-particle flows (1976)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 10 (1976), S. 185-196 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: A computer solution for two-dimensional fluid-particle flows using the cellular approach is presented. The euqations describing the flow of the continuous (fluid) phase are formulated using stream function, vorticity and enthalpy as the dependent variables. The effect of the disperse (particle) phase on the continous phase is represented by vorticity and energy sources in each cell. To illustrate the capability of the solution scheme, the flow of gas laden with hot particles issuing into a sudden expansion is analysed.
    Additional Material: 6 Ill.
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    Optimum design of stiffened cylindrical panels with constraint on the frequency in the presence of initial stresses (1976)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 10 (1976), S. 283-299 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: This paper presents the optimum design of stiffened cylindrical panels with weight as the objective function and constraints on the frequencies in the presence of initial stresses, using unconstrained minimization techniques of non-linear mathematical programming problem. The interaction between the buckling constraints and the frequency constraints in the presence of initial stresses are included in the formulation. Loss of load carrying capacity due to imperfection and due to suddenly applied loads are included in the buckling analyses. Results for cylindrical shell are obtained by setting the panel angle to 360 degrees. The relationship between the weight of the cylinder and the panel (a segment of the cylinder) is examined.
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    Multivariable approach to the finite difference solution of elasto-plastic problems (1976)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 10 (1976), S. 361-377 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: The solutions of plane elasto-plastic problems usually use one or two field variables - namely a stress functions or the displacements. The use of three, four or five field variables is investigated and it is concluded that the three stresses from the best basis for a multivariable approach. Attempts to solve the governing equations with an initial value technique were exhaustively tried and discarded in preference to a boundary value or elliptical technique. The problem solved to check the method is that of a hole in plane strain uniaxial tension. Effective plastic strain distributions are plotted, along with stress and strain concentration data and distributions of the mean to effective stress ratio. Comparison is made between solutions produced using incremental and deformation theories.
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    Steady and unsteady finite element analysis of incompressible viscous fluid (1976)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 10 (1976), S. 437-456 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: Finite element procedures and related illustrative numerical examples for incompressible viscous fluid motion are discussed in this paper. The steady flow problem is solved by the Newton-Raphson method and the perturbation method. By numerical examples, it can be shown that the combined use of the Newton-Raphson method and perturbation method is suitable. For the analysis of unsteady flow, the perturbation method is employed. Assuming that the basic flow is known, unsteady flow is calculated by accumulating the solution of the linearized equation in which the boundary values are varied by small amounts. Steady flows of temperature dependent free convection are also discretized and analyzed by the same procedure as the conventional finite element Galerkin method. For shape functions, quadratic polynomials are used for velocity and temperature, and linear polynomials for pressure. It is to be noted that the selections of shape functions and solution method are the keys to the analysis of highly non-linear fluid flow problems such as those discussed in this paper.
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    Linear and non-linear waves, G. B. Whitham, Wiley, New York. Price: £12.15. 636 pages (1976)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 10 (1976), S. 488-488 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
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    URL: http://dx.doi.org/10.1002/nme.1620100223
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    The incremental perturbation method for large displacement analysis of elastic-plastic structures (1976)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 10 (1976), S. 503-525 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: A procedure of applying the perturbation method is presented for the incremental numerical analysis of materially and combined non-linear problems of discrete and discretized structral systems. Small but finite strain and stress increments are strictly distinguished from the strain rates and stress rates, respectively. It is shown that, by applying the perturbation procedure not only to the non-linear strain-displacement relations and equilibrium equations, but also to the constitutive equations in terms of rate quantities, all the governing equations can be satisfied to any desired accuracy at every instantaneous configuration in between the starting and terminal points of an incremental step. The proposed method provides also means of finding, to a desired accuracy, every point on an equilibrium path of a discrete system at which a new element will start yielding or unloading and possible critical points on the path. The significance of the proposed method is expected to be appreciated particularly in numerical investigations of critical behaviours and post-buckling behaviours.
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    Solution of plane elasticity problems by the displacement discontinuity method. I. Infinite body solution (1976)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 10 (1976), S. 301-343 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: This paper is concerned with the development of a numerical procedure for solving complex boundary value problems in plane elastostatics. This procedure - the displacement discontinuity method - consists simply of placing N displacement discontinuities of unknown magnitude along the boundaries of the region to be analyzed, then setting up and solving a system of algebraic equations to find the discontinuity values that produce prescribed boundary tractions or displacements. The displacement discontinuity method is in some respects similar to integral equation or ‘influence function’ techniques, and contrasts with finite difference and finite element procedures in that approximations are made only on the boundary contours, and not in the field. The method is illustrated by comparing computed results with the analytical solutions of two boundary value problems: a circular disc subjected to diametral compression, and a circular hole in an infinite plate under a uniaxial stress field. In both cases the numerical results are in excellent agreement with the exact solutions.
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    Finite element method applied to the supersonic flutter of circular cylindrical shells (1976)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 10 (1976), S. 423-435 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: The application of the finite element method to the supersonic flutter of circular cylindrical shells subjected to internal pressure and axial compression is presented. A circular cylindrical shell element is used. The element stiffness, mass and initial stiffness matrices are given. The element aerodynamic matrix is derived based on a first order high Mach number approximation to the linear potential flow theory. The eigenvalue problem is solved by the QR algorithm. Numerical results are presented and these are compared with analytical solutions and experimental data.
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    A finite element solution program for large structures (1976)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 10 (1976), S. 401-412 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: A straightforward and general computer program for assembling and solving (using Gauss elimination technique) widely sparsed finite element matrix equations with very large bandwidth and capable of handling different degrees-of-freedom and variable bandwidth at different nodes, is described herein. The program assembles any type of finite elements having arbitrary number of nodes and each node may have differnt degrees-of-freedom. It requires only a small core memory in the computer, although a fast random access device is also needed. The two very important features of this program are (i) it does not store any zero submatrices within the band and (ii) during the solution of equations all operations dealing with zero submatrices within the band are automatically skipped and thus the savings of a considerable amount of disc storage space and computer time can be effected in many cases. Another feature is that many right hand sides can be handled simultaneously. Hence the program is very economical for structures having widely sparsed matrix equations. A listing of the computer program written in FORTRAN IV for CDC 6400 computer is readily available from the authors, but unfortunately could not be given here because of lack of space. The program is so general that it can be used to solve a wide class of finite element problems without actually having to understand fully the techniques behind it.
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    An ADI procedure suitable for virtual storage systems (1976)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 10 (1976), S. 465-470 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: The Peaceman-Rachford ADI technique is a well-known iterative method for solving large systems of linear equations arising from finite difference methods of solution of partial differntial equations. The present note demonstrates how the algorithm can be conveniently rearranged for computation in a virtual storage system with paging. Timing results are given for a sample problem typical of those encountered in nuclear diffusion computation.
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    Author's reply to the discussion by Watkins (1976)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 10 (1976), S. 472-474 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620100217
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    Diagonal dominance and S.O.R. performance with skew nets (1976)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 10 (1976), S. 225-230 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: Alternative finite difference formulations for elliptic equations on skew nets are investigated for suitability for rapid convergence of S.O.R. iterations. In dealing with the differential equation directly, diagonal dominance is a key property for convergence theorems. Mixed derivatives boundary conditions threatens this property, but formulas are presented which protect it as long as the net skewness is not too severe. Test calculations are reported showing convergence for these formulas to be as good as that of optimal S.O.R. theory, whereas other more direct formulas give a very inferior performance.
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    Masthead (1976)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 10 (1976) 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620100201
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    Frontal solution program for unsymmetric matrices (1976)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 10 (1976), S. 379-399 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: A frontal solution program is presented which may be used for the solution of unsymmetric matrix equations arising in certain applications of the finite element method to boundary value problems. Based on the Gaussian elimination algorithm, it has advantages over band matrix methods in that core requirements and computation times may be considerably reduced; furthermore numbering of the finite element mesh may be completed in an arbitrary manner. The program is written in FORTRAN and a glossary of terms is provided.
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    On the use of isoparametric finite elements in linear fracture mechanicsAfter submitting this paper, the author has learned of an independent development reporting a similar approach for 2-D problems, see R. D. Henshell, ‘Crack tip finite elements are unnecessary’, Int. J. num. Meth. Engng, 9, 495-507 (1975). (1976)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 10 (1976), S. 25-37 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: Quadratic isoparametric elements which embody the inverse square root singularity are used in the calculation of stress intensity factors of elastic fracture mechanics. Examples of the plane eight noded isoparametric element show that it has the same singularity as other special crack tip elements, and still includes the constant strain and rigid body motion modes. Application to three-dimensional analysis is also explored. Stress intensity factors are calculated for mechanical and thermal loads for a number of plane strain and three-dimensional problems.
    Additional Material: 13 Ill.
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    URL: http://dx.doi.org/10.1002/nme.1620100103
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    A finite element method for the axisymmetric flow computation in a turbomachine (1976)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 10 (1976), S. 93-113 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: The equations for the meridional through-flow in a turbomachine are formulated as a quasi-harmonic non-linear equation. This equation is then solved iteratively by the finite element method and in order to obtain convergence an under-relaxation factor has to be introduced. Comparisons with experimental results in single and multistage axial compressors show very good agreement. The finite element method is thus shown to be an efficient tool for this type of problem.
    Additional Material: 20 Ill.
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    URL: http://dx.doi.org/10.1002/nme.1620100108
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    Isoparametric finite element methods for two-dimensional transport calculations (1976)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 10 (1976), S. 171-183 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: Finite element methods for solving the two-dimensional x-y transport equation are considered. Numerical schemes are defined and tested on some simple practical problems.
    Additional Material: 10 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620100113
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    Inertia loading in finite element analysis of structures subject to compound motion (1976)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 10 (1976), S. 197-209 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: The problems associated with the stress analysis of structures subjected to body force loading due to compound motion are outlined. An economic method for calculating equivalent nodal loading, for use in a finite element displacement analysis, is proposed in which the element discretization and consistent mass matrices are used to advantage. The relevant equations, relating to the rigid body dynamics of compound motion, are appended in matrix notation. Validity of the method is demonstrated by an analysis of the stresses, due to gyroscopic and centrifugal forces, in an aero engine blade model.
    Additional Material: 10 Ill.
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    URL: http://dx.doi.org/10.1002/nme.1620100115
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    Letter to the editor (1976)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 10 (1976), S. 718-719 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620100319
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    Large deformation analysis of plates and cylindrical shells by a mixed finite element method (1976)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 10 (1976), S. 731-746 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620100403
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    An automatic node relabelling scheme for minimizing a matrix or network bandwidth (1976)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 10 (1976), S. 787-797 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: An automatic algorithm is presented for reducing the bandwidth of symmetric sparse connectivity matrices. The procedure takes an arbitrary input sequence and creates an optimal bandwidth for complex network systems by renumbering the node labels. Thus, considerable improvement for computer storage and time is achieved in the solution of the systems.A large number of examples is presented to demonstrate the reliability and the efficiency of the method.
    Additional Material: 5 Ill.
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    URL: http://dx.doi.org/10.1002/nme.1620100406
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    Reduction scheme for some structural eigenvalue problems by a variational theorem (1976)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 10 (1976), S. 845-852 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: An accurate reduction scheme for structural eigenvalue problems is deduced from a variational theorem in which the displacement, velocity and/or momentum fields are taken to be independent.
    Additional Material: 2 Ill.
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    URL: http://dx.doi.org/10.1002/nme.1620100411
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    On the finite element solution of an exterior boundary value problem (1976)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 10 (1976), S. 885-891 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: This paper compares three methods for dealing with an exterior boundary value problem by the Finite Element Method, one of which involves using an infinite element. The methods are illustrated by application to the problem of ground water flow round a tunnel with permeable invert. The use of a special trial function with a variable parameter in the infinite element gives a particularly efficient method of solution.
    Additional Material: 2 Ill.
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    URL: http://dx.doi.org/10.1002/nme.1620100415
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    Subspace iteration accelrated by using Chebyshev polynomials for eigenvalue problems with symmetric matrices (1976)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 10 (1976), S. 935-944 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: Bathe's algorithm of subspace iteration for the solution of the eigenvalue problem with symmetric matrices is improved by incorporating an acceleration technique using Chebyshev polynomials. This method of acceleration is particularly effective for this kind of iteration. The rate of convergence of the iteration scheme presented is considerably improved when compared with the original one, and satisfactory rates of convergence can be obtained for a wider range of eigenvalues.
    Additional Material: 2 Ill.
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    URL: http://dx.doi.org/10.1002/nme.1620100418
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    A hexagonal finite element with one degree-of-freedom per hexagon (1976)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 10 (1976), S. 958-959 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620100422
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    Comment on hybrid finite elementsBritish Crown Copyright Reserved. Reproduced by permission of the Controller, Her Majesty's Stationery Office. (1976)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 10 (1976), S. 968-973 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: It is shown that an apparently sound selection of trial functions can give rise to hybrid elements with rank deficient stiffness matrices and unused interior fields. An account is given of modifications which overcome these problems for a particular plate bending element.
    Additional Material: 1 Ill.
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    URL: http://dx.doi.org/10.1002/nme.1620100425
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    Linear differential equations with periodic coefficients, 2 volumes, V. A. Yakubovich and V. M. Starzhinskii, Wiley, New York, 1975. No. of pages: 839. Price: £20.60 (1976)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 10 (1976), S. 976-976 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620100430
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    On the optimum shape of fillets in plates subjected to multiple in-plane loading cases (1976)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 10 (1976), S. 1007-1019 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: The shape of a plate in plane stress is determined, such that the maximum elastic stress corresponding to given loads is minimized. The shape of the boundary is approximated by a series and optimization is carried out by solving a sequence of linearized minimum-maximum problems using linear programming. The optimization problem is extended to include multiple loading cases and geometrical constraints. The stress derivatives are found using analytical expressions for stiffnesses and stiffness derivatives of the finite elements. For the optimum design of a hole in an infinite plate under biaxial stretching the numerical result is compared with an analytical solution. As another example the method is used to optimize the edge shape of a shape of a junction in a web frame.
    Additional Material: 10 Ill.
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    URL: http://dx.doi.org/10.1002/nme.1620100504
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    A review of least-squares methods for solving partial differential equations (1976)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 10 (1976), S. 1021-1046 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: Continuous (integral) and discrete (point-matching) least-squares methods are presented for linear and non-linear problems in boundary-value, eigenvalue, and initial-value form. The history is traced, and important theoretical and practical results are summarized. A comprehensive sample of the literature is presented, indexed to show type of application, version of least squares used, and results of comparison studies. The advantages of least-squares methods are discussed, including convenience in formulation and error evaluation, generality of mixed and local (finite element) versions, and performance that is competitive with other methods.
    Additional Material: 4 Tab.
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    URL: http://dx.doi.org/10.1002/nme.1620100505
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    Stiffness matrix for a non-prismatic beam-column element (1976)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 10 (1976), S. 1125-1142 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: An algorithm is presented which generates an element stiffness matrix for non-prismatic beam-column members using Newmark's numerical procedure of successive approximations. The resulting element stiffness matrix on element co-ordinates is fond to be in excellent agreement with those available for limiting cases. An approximate stability analysis conducted on the covergence of the numerical scheme shows that the proposed algorithm is stable. The critical buckling loads for various and conditions are computed as part of the computational scheme. A computer program listing in FORTRAN IV is included which will handle essentially and order and/or kind of non-prismaticity of beam elements. The results are presented in the conventional and convenient coefficient format.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620100512
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    A hybrid element method for steady linearized free-surface flows (1976)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 10 (1976), S. 1153-1175 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: It is first shown that the two-dimensional linearized ship wave problem can be recast as the sum of a radiation and a diffraction problem for simple harmonic waves. Each problem can be solved by a hybrid element method (HEM) where conventional finite elements are used near the body and analytical solutions are used in the remaining infinite regions (super-elements). Variational principles which incorporate the matching conditions between regular and super-elements as natural conditions are derived. Numerical examples are presented. The theoretical aspects for extending the above ideas to a three-dimensional ship wave problems are also described.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620100514
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    A quadrature method for finite intervals (1976)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 10 (1976), S. 708-712 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: The quadrature rule for a finite interval obtained by transforming to an infinite range and applying the midpoint rule is examined. It is found that the condition required to make the quadrature exact for a constant integrand imposes severe practical limits. The method is very good for integrands with singularities near the endpoints but ineffective for oscillatory integrands.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620100317
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    A computer program for the Chebyshev solution of overdetermined systems of linear equations (1976)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 10 (1976), S. 1197-1202 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620100521
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