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  • Inorganic Chemistry  (6)
  • METEOROLOGY AND CLIMATOLOGY  (5)
  • Schadstoffkontrolle  (1)
  • 1990-1994  (3)
  • 1975-1979  (9)
  • 1955-1959
Collection
Keywords
Publisher
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Schadstoff-Kontrolle und industrielle Konzentrationsmessungen mit neuen potentiostatischen MeßanordnungenVortrag auf der ACHEMA, Ausstellungstagung für Chemisches Apparatewesen, 20. bis 26. Juni 1976 in Frankfurt/M. (1977)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 49 (1977), S. 665-665 
    Details
    ISSN: 0009-286X
    Keywords: Kleinanalysatoren ; Wasseranalytik ; Sauerstoff (-Spuren) ; Ozon ; Schadstoffkontrolle ; Cyanide ; Hydrazin ; Kesselspeisewasser ; Trinkwasser ; Bier ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330490817
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  • 2
    Electronic Resource
    Electronic Resource
    „Ytterbiumdisulfid“: Eine Korrektur (1993)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 619 (1993), S. 1154-1154 
    Details
    ISSN: 0044-2313
    Keywords: „Ytterbiumdisulfide“ ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: „Ytterbiumdisulfide“: A CorrectionThe still open questions concerning preparation and crystal structure of „Ytterbiumdisulfide“ could be answered now using new experimental results. The formerly investigated single crystals were not YbIIS2 but BaS2.
    Notes: Die immer noch offenen Fragen zur Darstellung und Kristallstruktur von „Ytterbiumdisulfid“ konnten nun anhand neuerer Untersuchungsergebnisse beantwortet werden. Die seinerzeit untersuchten Einkristalle waren nicht YbIIS2 sondern BaS2.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19936190631
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  • 3
    Electronic Resource
    Electronic Resource
    Synthese und Struktur des ersten ternären Blei(II)-Oxocuprats(I): PbCu2O2Professor Wilhelm Preetz zum 60. Geburtstage gewidmet (1994)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 620 (1994), S. 1307-1311 
    Details
    ISSN: 0044-2313
    Keywords: Copper ; lead ; oxide ; preparation ; structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis and Structure of the First Ternary Lead(II) Copper(I) Oxide: PbCu2O2PbCu2O2 can be prepared by solid state reaction or by precipitation from a basic aqueous solution. Single crystals of the new compound were prepared by recrystallisation from a molten mixture (PbO—Cu2O) and investigated by X-ray diffractometer technique. PbCu2O2 crystallizes isotypically with the homologue silver compound PbAg2O2 (monoclinic with a = 8.223 Å, b = 8.289 Å, c = 6.015 Å, β = 132.62°, Z = 4, space group C2h6—C 1 2/c 1). The crystallographic data from the X-ray investigation are reported. The structure is built by endless ∞1[PbO4/4]- and ∞1[CuO2/4]-chains. Pb2+ has a one-sided asymmetric coordination with four next oxygen neighbours and Cu+ forms a stretched dumbbell with two oxygen atoms.
    Notes: PbCu2O2 kann durch Feststoffreaktion oder aus alkalischer, wässeriger Lösung erhalten werden. Einkristalle der neuen Verbindung wurden aus einer erstarrten Oxidschmelze (PbO—Cu2O) präpariert und mit Vierkreisdiffraktometertechnik röntgenographisch untersucht. PbCu2O2 ist isotyp mit der homologen Silberverbindung PbAg2O2 (monoklin mit a = 8,223 Å, b = 8,289 Å, c = 6,015 Å, β = 132,62°, Z = 4; Raumgruppe C2h6—C 1 2/c 1). Die kristallographischen Daten der Röntgenstrukturanalyse werden mitgeteilt. Die Kristallstruktur ist durch ∞1[PbO4/4]- und ∞1[CuO2/4]-Ketten charakterisiert. Pb2+ hat eine einseitige Koordination mit vier nächsten Sauerstoffnachbarn. Cu+ bildet mit zwei Sauerstoffatomen eine gestreckte Hantel.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19946200727
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  • 4
    Electronic Resource
    Electronic Resource
    Darstellung, Eigenschaften und Kristallstruktur von Bis(phthalocyaninato)cer(IV)Herrn Professor Hanskarl Müller-Buschbaum zum 60. Geburtstage gewidmet (1992)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 608 (1992), S. 73-80 
    Details
    ISSN: 0044-2313
    Keywords: Bis(phthalocyaninato)cerium(IV) ; crystal structure ; u.v.-vis., m.i.r., f.i.r., resonance Raman spectra ; cyclovoltammetry ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Preparation, Properties and Crystal Structure of Bis(phthalocyaninato)cerium(IV)The anodic or chemical oxidation with dibenzoylperoxide of solutions of bis(phthalocyaninato)cerate(III) in dichloromethane yields selectively sparely soluble bis(phthalocyaninato)cerium(IV), [Ce(Pc(2-))2]. Green, monoclinic needles cristallize with a = 18.783(12) Å b = 18.739(16) Å c= 15.618(10) Å ß114.30(7)°; Z = 4; space group C2/c. [Ce(Pc(2-))2] is a sandwich complex in which the cerium Atom is eightfold coordinated by the isoindole nitrogens of the two staggered convex Pc-rings. The u.v.-vis., m.i.r., f.i.r. and resonance Raman spectra are consistent with the structure.
    Notes: Schwerlösliches Bis(phthalocyaninato)cer(IV), [Ce(Pc(2-))2] wird durch anodische oder chemische Oxydation mit Dibenzoylperoxid von Bis(phthalocyaninato)cerat(III), gelöst in Dichlormethan, dargestellt. Es kristallisiert in grünen monoklinen Nadeln in der Raumgruppe C2/c mit den Gitterkonstanten a = 18,783(12) Å; b = 18,739(16) Å c = 15,618(10) Å β = 14,30(7)°; Z = 4. [Ce(Pc(2-))2] ist ein sandwichartiger complex in dem das cer-Atom von den Isoindol-Stickstoff-Atomen der beiden konvex verzerrten, auf Lücke stehenden Pc- Ringe achtfach-koordiniert ist. Die UV-VIS-, MIR-, FIR- und Resonanz-Raman-Spektren stehen im Einklang mit dieser Struktur.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19926080212
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  • 5
    Electronic Resource
    Electronic Resource
    Darstellung und Kristallstruktur von Gold-Barium-Thiostannat(lV), Au2,BaSnS4 (1978)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 445 (1978), S. 193-201 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Preparation and crystal Structure of Gold Barium Thiostannate(IV), Au2,BaSnS4Preparation and properties of the hitherto unknown Au2,BaSnS4 are reported. The single crystal X-ray analysis shows that the crystals form mosaic blocks. The units cell has orthorhombic symmetry with a = 1098.2 ± 0.4; b = 1109.3 ± 0.4; c = 665.2 ± 0.4 pm and contains Z = 4 formula units. Space group: D23—P21212 (No. 18). The crystal structure is discussed in respect of those of Cu2BaSnS4 [1] and Ag2BaSnS4 [2, 3] known from our earlier communications.
    Notes: Es wird über die Darstellung und die Eigenschaften der neuen Verbindung Au2,BaSnS4 berichet. Die Strukturanalyse mit Röntgeneinkristalldaten ergibt eine Blockstruktur mit: a = 1098,2 ± 0,4; b= 1109,3 ± 0.4; c = 665,2 ± 0,4 pm, Raumgruppe D23—P21212 (Nr. 18) orthorhombisch und Z = 4 Formeleinheiten pro Elementarzelle. Die Kristallstruktur von Au2,BaSnS4 wird beschrieben und zusammen mit den Ergebnissen früherer Untersuchungen an Cu2BaSnS4[1] und Ag2,BaSnS4 [2, 3] diskutiert.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19784450124
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  • 6
    Electronic Resource
    Electronic Resource
    Darstellung und Kristallstruktur von Cu2SrSnS4 (1976)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 419 (1976), S. 67-76 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Preparation and Crystal Structure of Cu2SrSnS4Cu2SrSnS4 was prepared from a mixture of the three binary sulfides at 620-700° C. The structure analyses by single crystal X-ray investigations yields a trigonal C-symmetrie for the unit of the structure with a = 6.290 and c = 15.578 Å and three formula units. Space group: C32-P31 (No. 144). Copper and tin have tetrahedral surrounding of S2-. The neighbourhood of Sr2+ has the shape of a deformed archimedic antiprisma.
    Notes: Cu2SrSnS4 wurde aus einem Gemisch der drei binären Sulfide bei 620-700°C dargestellt. Die Strukturanalyse mit Einkristall-Röntgenbeugungsdaten ergab trigonale C-Symmetrie mit a = 6,29o und c = 15,578 Å und drei Formeleinheiten pro Elementarzelle. Raumgruppe: C32-P31 (Nr. 144). Kupfer und Zinn sind tetraedrisch von S2- umgeben. Das Sr2+ hat 8 nächste Schwefelnachbarn in der Anordnung eines verzerrten archimedischen Antiprismas.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19764190112
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  • 7
    Electronic Resource
    Electronic Resource
    Präparative und röntgenographische Untersuchung am System Cu2-xAgxBaSnS4 (1976)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 426 (1976), S. 281-287 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Experimental and X-ray Investigations of the System Cu2-xAgxBaSnS4A description of the preparation, properties and the x-ray investigations of Cu2BaSnS4 (A) and Ag2BaSnS4 (B) is given. (A) crystallizes trigonal. Space group: C32-P31, a = 6.367 and c= 15.833 Å. (A) is isotypic with Cu2SrSnS4 [1]. (B) has an orthorhombic unit cell: a = 7.127, b = 8.117, c = 6.854 Å. The x-ray investigation of the system Cu2-xAgxBaSnS4 (0 ≤ x ≤ 2) yields a homogenity range of (0 ≤ x ≤ 0.65) for (A) and for (B) (1.7 〈 x ≤ 2).
    Notes: Es wird über die Darstellung, die Eigenschaften und die röntgenographische Untersuchung von Cu2BaSnS4 (A) und Ag2BaSnS4 (B) berichtet. (A) kristallisiert trigonal,  -  Raumgruppe C32-P31 mit a = 6,367 und c = 15,833 Å  -  und ist mit Cu2SrSnS4 [1] isotyp. (B) hat eine orthorhombische Elementarzelle: a = 7,127, b = 8,117 und c = 6,854 Å. Die röntgenographische Systemuntersuchung an Cu2-xAgxBaSnS4 ( o ≤ x ≤ 2) ergibt die Phasenbreite: ( 0 ≤ x ≤ 0,65) für (A) und für (B) (1,7 〈 〈 x ≤ 2).
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19764260308
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  • 8
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    Model predictions of wind and turbulence profiles associated with an ensemble of aircraft accidents (1977)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: The feasibility of predicting conditions under which wind/turbulence environments hazardous to aviation operations exist is studied by examining a number of different accidents in detail. A model of turbulent flow in the atmospheric boundary layer is used to reconstruct wind and turbulence profiles which may have existed at low altitudes at the time of the accidents. The predictions are consistent with available flight recorder data, but neither the input boundary conditions nor the flight recorder observations are sufficiently precise for these studies to be interpreted as verification tests of the model predictions.
    Keywords: METEOROLOGY AND CLIMATOLOGY
    Type: NASA-CR-2884 , M-225
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 9
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    Turbulent transport model of wind shear in thunderstorm gust fronts and warm fronts (1978)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: A model of turbulent flow in the atmospheric boundary layer was used to simulate the low-level wind and turbulence profiles associated with both local thunderstorm gust fronts and synoptic-scale warm fronts. Dimensional analyses of both type fronts provided the physical scaling necessary to permit normalized simulations to represent fronts for any temperature jump. The sensitivity of the thunderstorm gust front to five different dimensionless parameters as well as a change from axisymmetric to planar geometry was examined. The sensitivity of the warm front to variations in the Rossby number was examined. Results of the simulations are discussed in terms of the conditions which lead to wind shears which are likely to be most hazardous for aircraft operations.
    Keywords: METEOROLOGY AND CLIMATOLOGY
    Type: NASA-CR-3002 , ARAP-327
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 10
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    Turbulent transport model of a thunderstorm gust front (1977)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: A second-order closure turbulent model is adopted to predict complex fluid flows; few a priori assumptions about the internal turbulent and mean flow structures are required. The flow simulations are applied to the analysis of local gust fronts generated by rain-cooled outflows from severe thunderstorms. Results of the simulations provide a means for discussing the behavior of an aircraft passing through a thunderstorm-related downdraft.
    Keywords: METEOROLOGY AND CLIMATOLOGY
    Type: Conference on Severe Local Storms; Oct 18, 1977 - Oct 21, 1977; Omaha, NE
    Format: text
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    NASA TECHNICAL REPORTS
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