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  • 1
    Electronic Resource
    Electronic Resource
    Amplitude of liquid droplet oscillation (1973)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 19 (1973), S. 858-859 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690190431
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  • 2
    Electronic Resource
    Electronic Resource
    A stable explicit method for simultaneous quasi-linear differential equations (1971)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 17 (1971), S. 756-759 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690170351
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  • 3
    Electronic Resource
    Electronic Resource
    High purity ferritic Cr—Mo stainless steel - Five years' successful fight against corrosion in the process industryVortrag, gehalten auf der Achema-Tagung, 20.-26. Juni 1976 in Frankfurt (1977)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 28 (1977), S. 409-416 
    Details
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Hochreine ferritische CrMo-Stähle - Fünf erfolgreiche Jahre für die Korrosionsbe-kämpfung in der VerfahrensindustrieIm Laufe von 5 Jahren hat der ferritische nichtrostende Stahl E-Brite 26-1 eine beträchtliche Bedeutung innerhalb der für Chemieanlagen infrage kommenden Werk-stoffe erreicht. Als nichtrostende Stähle ist er hinsichtlich seiner Anwendbarkeit mit viel kostspieligeren Legierungen vergleichbar. Der Stahl hat sich als wirtschaftliche Alternative für Anlagen erwiesen, die mit Alkalien, Salpetersäure-Harnstoff, organischen Chemikalien, Zellstofflaugen, Raffinerieprodukten u. v. a. in Kontakt kommen. Das Vertrauen der Verbraucher in die Zuverlässigkeit dieses Stahls ist so stark, daß heute auch große kritische Anlagen auf Routinebasis aus diesem Stahl verlangt werden. Aufgrund der guten Aufnahme des neuen Materials auf dem Markt hat man versucht, Ersatzversionen zu entwickeln. Diese Nachahmungen sind jedoch mit Vorsicht zu betrachten. Ein stabilisierter 26-IS muß noch längere Zeit untersucht werden, um festzustellen, ob er hinsichtlich Korrosionsbeständigkeit, Duktilität, Verarbeitbarkeit und Reproduzierbarkeit der Eigenschaften mit E-Brite 26-1 vergleichbar sein kann.
    Notes: In five years, E-BRITE 26-1 ferritic stainless steel has won an important place in the spectrum of materials suitable for use in chemical process equipment. It provides, in stainless steel, performance-capability characteristics comparable to more expensive alloys. It has demonstrated cost-effectiveness in equipment used for caustic, nitric-urea, organic chemicals, pulping liquors, refinery streams, and elsewhere. User confidence in the reliability and integrity of Grade XM 27 has increased to the point where large critical systems are now routinely specified in the alloy. The market acceptance of this material has attracted attempts to produce substitute versions of the alloy. Imitation, should be viewed with caution. Stabilized 26-IS must be examined over a lengthy period of time to determine if its own corrosion resistance, ductility, fabricability, and reproducibility properties could ever be likened to those of E-BRITE 26-1.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19770280604
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  • 4
    Electronic Resource
    Electronic Resource
    Thermal decomposition and volatilization of poly(α-olefins)This paper was presented at the 15th Prague IUPAC Microsymposium, Prague, CSSR, July 21-24, 1975; Preprint A3. (1977)
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Chemistry Edition 15 (1977), S. 1393-1402 
    Details
    ISSN: 0360-6376
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The thermal decomposition of normal alkanes and linear poly(α-olefins) was found to occur predominately by random scissions, followed by volatilization into an open system. To show these processes the fragment distribution from high molecular weight linear polyethylene (fragments to C55), n-alkanes, polypropylene, and polyisobutylene (fragments to C60) are reported and discussed in depth. Based on the results, a mechanism of random scissions followed by volatilization is postulated for polyethylene and n-alkanes as well as for polyisobutylene and polypropylene. Polystyrene is shown not to follow the same mechanism, for little evidence for fragments above trimers was found. In addition, temperature rise-time measurements at the pyrolyzer probe are reported and explained.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1977.170150610
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  • 5
    Electronic Resource
    Electronic Resource
    Pyrolysis/Gas chromatography/mass spectrometry of polymers: Polyisopropenylcyclohexane and copolymers with its aromatic counterpart, α-methylstyrene (1979)
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Chemistry Edition 17 (1979), S. 3959-3967 
    Details
    ISSN: 0360-6376
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Flash pyrolyses at 400, 650, and 900°C of polyisopropenylcyclohexane (PIC) and copolymers, produced by partial hydrogenation of poly-α-methylstyrene (PAMS), have shown that the decomposition of the PIC or IC sequences is complex. In comparison, PAMS and AMS sequences give only depolymerization to monomer at the two lower temperatures but a more complex degradation at 900°C, based on the products identified. It is interesting to note that traces of decalin solvent initiated the depolymerization of PAMS and the AMS sequences in the copolymers at 400°C. The products identified by copolymer pyrolyses indicated that no reaction occurred between S and IC units during decomposition. Average sequence data on the copolymers could not be determined because of the facile unzipping of the AMS sequences and the greater thermal stability of the IC sequences. The fragmentation pattern did indicate that partial hydrogenation of PAMS had produced random copolymer and not a blend of two homopolymers.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1979.170171216
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  • 6
    Electronic Resource
    Electronic Resource
    Measurement of phenylacetic acid in cerebrospinal fluid and plasma using combined gas chromatography/electron capture chemical ionization mass spectrometry (1988)
    Chichester : Wiley-Blackwell
    Biological Mass Spectrometry 17 (1988), S. 213-219 
    Details
    ISSN: 1052-9306
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Details are presented of an ultra-sensitive gas chromatographic/mass spectrometric assay for phenylacetic acid in plasma and cerebrospinal fluid based on measurements of the relative intensities of the carboxylate anions, derived from the penta- and tetraflourobenzyl esters under electron capture chemical ionization conditions, of unlabeled and a (13C2)-labeled internal standard. The limits of detection for the penta- and tetrafluorobenzyl esters are 0.85 and 4.0 pg respectively, and the assay is capable of measuring phenylacetic acid concentrations in samples as small as 20 μl of CSF and plasma. The penta- and tetrafluorobenzyl esters are chromatographically separated on the gas chromatograph column, which allows for their co-injection and independent measurement from the same chromatogram.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bms.1200170310
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  • 7
    Electronic Resource
    Electronic Resource
    Sequences of the CyIIIa actin gene regulatory domain bound specifically by sea urchin embryo nuclear proteins (1990)
    New York, NY [u.a.] : Wiley-Blackwell
    Molecular Reproduction and Development 25 (1990), S. 110-122 
    Details
    ISSN: 1040-452X
    Keywords: DNA-protein interactions ; Embryonic gene regulation ; Regulatory factors ; Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology
    Notes: Expression of the Cylla cytoskeletal actin gene is a marker of differential gene activation in the aboral ectoderm of the early sea urchin embryo. Gene transfer expreiments have defined a 2,300 nucleotide cis-regulatory domain required for the correct spatial and temporal control of this gene. This domain includes at least 20 sites at which relatively stable DNA-protein complexes form in vitro on reaction with embryo nuclear extracts. We report the nucleotide sequence of the whole regulatory domain and map the sites at which high-specificity DNA-protein interactions occur. These were located initially by gel shift assays carried out on progressive restriction digests of given subfragments of the large regulatory domain and were located more exactly by oligonucleotide gel shift competitions. Eight of the sites of specific interaction are unique within the Cyllla regulatory domain, and the remainder consist of five different sites that occur more than once. We observe some well known sequences also found in regulatory regions of other genes, e.g., “CCAAT” and “octamer” elements. The various sites have been classified regarding putative biological function in other work, and the present studies permit an assessment of the number and complexity of interactions constituting each functional class and of the relative locations of sites of each class.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mrd.1080250203
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  • 8
    Electronic Resource
    Electronic Resource
    Expression of two actin genes during larval development in the sea urchin Strongylocentrotus purpuratus (1989)
    New York, NY [u.a.] : Wiley-Blackwell
    Molecular Reproduction and Development 1 (1989), S. 149-155 
    Details
    ISSN: 1040-452X
    Keywords: Gene regulation ; Echinoderm ; Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology
    Notes: We report the first measurements of cell number, total RNA, and transcript accumulations for two actin genes during larval development of the sea urchin Strongylocentrotus purpuratus. At 5 weeks of feeding, when development of laboratory-raised larvae is completed, the cell number has increased about 100-fold with respect to the pluteus-stage embryo to about 150,000 ± 50,000, and the total RNA has increased 46-fold to about 130 ng per larva. The transcripts of the Cylla cytoskeletal actin gene, which is expressed in adult tissues, continue to accumulate throughout larval development. A contrasting pattern of transcript accumulation is observed for Cyllla, a different cytoskeletal actin gene that in the embryo is expressed only in aboral ectoderm. These transcripts increase in number early in larval development, when the larval epidermis is differentiating, and then decline in quantity. It is known that at metamorphosis the larval epidermis is largely histolyzed and that the Cyllla gene is not expressed in the juvenile or adult.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mrd.1080010302
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  • 9
    Electronic Resource
    Electronic Resource
    Analysis of the effects of internal heating and cooling during the rotational molding of plastics (1993)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 33 (1993), S. 132-139 
    Details
    ISSN: 0032-3888
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: In rotational molding, shortening the cycle time is one of the most important requirements for increasing production rates and reducing product cost. A characteristic feature of the process is that the mold and plastic powder are heated from room temperature to the melting temperature of the plastic and then back to room temperature. In addition, in the vast majority of cases the heat input and subsequent heat extraction occur at the outside surface. In order to improve the heat transfer, this paper considers the effects of internal heating and cooling. A mathematical model has been developed in which an internal heating term can be incorporated. The experiments with rotomolding powders show that the predictions made by the model are accurate. In particular, it is found that the introduction of internal heating is very effective in shortening the cycle time and that the introduction of internal cooling in rotational molding provides a more uniform structure and less likelihood of warpage.
    Additional Material: 11 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pen.760330303
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  • 10
    Electronic Resource
    Electronic Resource
    Kinetics and mechanism of formation of penta-ammineglycinecobalt(III) ion from aquopenta-amminecobalt(III) ion and glycine in acid media (1973)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 400 (1973), S. 89-96 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Kinetik und Bildungsmechanismus des Pentamminglycinkobalt(III)-Ions aus dem Aquopentamminkobalt(III)-Ion und Glycin in saurem MediumDie Bildungsgeschwindigkeit des Pentamminkobalt(III)-Ions aus dem Aquopentamminkobalt(III)-Ion und Glycin in sauren Medien wurde photometrisch untersucht bei unterschiedlicher Glycin-Konzentration und unterschiedlichem pH-Wert zwischen 50-70°C. Die ΔH≠ und ΔS≠-Werte betragen 27,6 kcal · mol-1 bzw. +5,2 cl (Entropie Einheiten), und eine Zunahme der Ionenstärke ruft nur eine geringe Beschleunigung der Geschwindigkeit hervor. Die Ergebnisse stehen mit dem Mechanismus der Assoziation der äußeren Sphären des Aquopentamminkobalt(III)-Komplexes und Glycins in Übereinstimmung, gefolgt vom Übergang in die Verbindung auf Grund des wesentlichen Dissoziationsprozesses der Spaltung der Co(III)—OH2-Bindung, der von primärer Bedeutung bei diesem Übergangszustand ist (SN1-IP-Mechanismus).
    Notes: The rates of formation of penta-ammineglycinecobalt(III) ion from aquopenta-amminecobalt(III) ion and glycine in acidic media have been studied spectrophotometrically at different glycine concentration and different pH in the range of 50-70°C. The ΔH≠ and ΔSz≠ values are 27.6 kcal mole-1 and +5.2 e. u. respectively, and increase in ionic strength causes only a slight acceleration of the rate. The results are consistent with a mechanism involving outer-sphere association between the aquopenta-amminecobalt(III) complex and glycine, followed by its transformation into the product by an essentially dissociative process in which rupture of the Co(III)—OH2 bond is primarily important in the transition state (SN1IP mechanism).
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19734000113
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