ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Organic Chemistry  (7)
Collection
Keywords
Publisher
Years
  • 1
    Electronic Resource
    Electronic Resource
    Über die Berechnung von Adsorbern (1950)
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 33 (1950), S. 1118-1126 
    Details
    ISSN: 0018-019X
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Es wurden unter bestimmten Voraussetzungen lineare Differentialgleichungen für das Verhalten von Adsorbern und Reaktionsrohren abgeleitet. Die Integrale dieser Gleichungen wurden für gewisse Rand- und Anfangsbedingungen explizite angegeben.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/hlca.19500330442
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Molekel-Eigenfunktionen bestimmter Symmetrie: Linearkombinationen von S-Funktionen (1952)
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 35 (1952), S. 2149-2169 
    Details
    ISSN: 0018-019X
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Für die wichtigsten endlichen Punktsymmetriegruppen werden vollständige Systeme irreduzibler Darstellungen angegeben. Mit deren Hilfe werden durch Linearkombination von s-Einelektronen  -  Atomeigenfunktionen (s-AO) Einelektronen - Molekeleigenfunktionen (MO) nullter Näherung gebildet, die zu den irreduziblen Darstellungen der behandelten Gruppen gehören. Die zu berechnenden MO's können direkt zum Aufstellen der irreduziblen Bestandteile der Säkulargleichung bei MO-Problemen der theoretischen Chemie verwendet werden.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/hlca.19520350702
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Die numerische Auswertung statistischer Versuchspläne im Rahmen der BOX-WILSON'schen Methode unter Benützung der elektronischen Datenverarbeitungsanlage IBM 650 (1961)
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 44 (1961), S. 461-470 
    Details
    ISSN: 0018-019X
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Statistical design and planning of experiments by the BOX-WILSON method is briefly reviewed. The automation of the associated calculations by means of an electronic computer is then described. The main elements in setting up the programming sequence are itemized and developed in some detail. A numerical example is given to illustrate evaluation by computer and the advantages obtainable, i.e., speed, reliability, and flexibility in the choice of experimental design. The greater ease of operation made possible by automation is expected to enhance the attractiveness and the scope of the BOX-WILSON method quite considerably.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/hlca.19610440217
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Optimalgesetze in der chemischen Reaktionstechnik (1961)
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 44 (1961), S. 285-298 
    Details
    ISSN: 0018-019X
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The optimization of the distribution of residence times for ideal, isothermal, stirred-tank reactor cascades in the steady state is examined. By means of the method of dynamic programming it is shown that the optimal policy of such a cascade is uniform for a system involving any combination of first order reactions, thus forming a principle for a whole class of optimization problems. The values of the optimum residence time and of the corresponding maximum yield can be calculated with the given formulas if the rate constants are known.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/hlca.19610440137
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Ultrarotspektrum und Kraftkonstanten des Äthylenoxyds I (1950)
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 33 (1950), S. 1809-1823 
    Details
    ISSN: 0018-019X
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die Ultrarotbanden des Äthylenoxydes zwischen 800 und 1500 cm-1 wurden untersucht und die Enveloppen der meisten dieser Banden festgestellt. Der Vergleich der Enveloppen mit den theoretisch berechneten erlaubt eine Zuordnung der Ultrarotbanden zu den Normalschwingungen der Molekel vorzuschlagen, die in mehrfacher Hinsicht von den früher in der Literatur angegebenen abweicht. Die auf Grund dieser Zuordnung statistisch berechnete spezifische Wärme und Entropie des idealen Gases stimmen mit den experimentell bestimmten innerhalb der Fehlergrenzen überein. Eine Anzahl der Potentialkonstanten eines einfachen Valenzkraftmodells der Molekel wurden berechnet und diskutiert.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/hlca.19500330650
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Eine algebraische Methode zur Berechnung von Destillierkolonnen für Mehrstoffgemische (1952)
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 35 (1952), S. 1300-1304 
    Details
    ISSN: 0018-019X
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Es wird eine Methode der Berechung von Destillierkolonnen idealer Mehrstoffsysteme unter gewissen Bedingungen angegeben, die nur elementare Operationen mit Matrizen benützt und für numerische Berechnungen besonders übersichtlich ist.
    Additional Material: 5 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/hlca.19520350428
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Dynamische Programmierung in der chemischen Technik Die Optimierung chemischer Reaktionsausbeuten (1960)
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 43 (1960), S. 2182-2186 
    Details
    ISSN: 0018-019X
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The growing complexity of the problems the chemical engineer faces nowadays calls ever more urgently for the development of systematic methods yielding not just a random solution, but the best possible or optimal one. Our endeavours to find an adequate too for this purpose have drawn our attention to the theory of dynamic programming developed some years ago by Bellman in the field of operational research. In this paper the method is explained by means of an example: the optimization of a cascade of continuous, stirred tank reactors with respect to yield, achieved in our case by optimal distribution of the total residence time between the vessels.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/hlca.19600430742
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...