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  • Inorganic Chemistry  (1,488)
  • Surface physics, nanoscale physics, low-dimensional systems  (1,077)
  • Chemical Engineering  (824)
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  • 2015-2019  (1,080)
  • 1975-1979  (3,469)
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  • 2015-2019  (1,080)
  • 1975-1979  (3,469)
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  • 1
    Electronic Resource
    Electronic Resource
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 25 (1979), S. 763-773 
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: A theoretical and experimental analysis of self-inducting turbo aerator performance was carried out based on the theory of water jet injector operation. It was shown that the aerator's injection coefficient is completely determined by only two dimensionless groups, CH and EuG, between which there is a single valued dependence on whose basis generalization of experimental data is possible. An analytical expression for the optimality criterion or aerator performance index, accounting for aerator gas capacity, power consumption, and submergence, has been obtained in terms of CH and EuG with only one adjustable parameter. From the above two dependencies, a methodology was developed for determining optimal operating conditions, by means of which all the data necessary for the optimal design can be obtained from the results of bench scale experiment.
    Additional Material: 12 Ill.
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  • 2
    Publication Date: 2017-08-12
    Description: Author(s): Zu-Quan Zhang, Shuai Li, Jing-Tao Lü, and Jin-Hua Gao Recently, the existence of local magnetic moment in a hydrogen adatom on graphene was confirmed experimentally [González-Herrero et al. , Science 352 , 437 (2016) ]. Inspired by this breakthrough, we theoretically investigate the top-site adatom on trilayer graphene (TLG) by solving the Anderson impur... [Phys. Rev. B 96, 075410] Published Tue Aug 08, 2017
    Keywords: Surface physics, nanoscale physics, low-dimensional systems
    Print ISSN: 1098-0121
    Electronic ISSN: 1095-3795
    Topics: Physics
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  • 3
    Publication Date: 2017-09-23
    Description: Author(s): Zu-Quan Zhang and Jing-Tao Lü Using the nonequilibrium Green's function method, we consider heat transport in an insulating ferromagnetic spin chain model with spin-phonon interaction under an external magnetic field. Employing the Holstein-Primakoff transformation to the spin system, we treat the resulted magnon-phonon interact... [Phys. Rev. B 96, 125432] Published Thu Sep 21, 2017
    Keywords: Surface physics, nanoscale physics, low-dimensional systems
    Print ISSN: 1098-0121
    Electronic ISSN: 1095-3795
    Topics: Physics
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  • 4
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Cellular Physiology 101 (1979), S. 57-65 
    ISSN: 0021-9541
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: The concentration of trace elements in L-cells has been studied as a function of the trace metal content of the growth medium. Cells were cultured in synthetic media which contained varying trace amounts of the elements manganese, iron, cobalt, copper, zinc and molybdenum. The cellular concentration of the elements potassium, iron, copper and zinc were then determined. It was found that the cell accumulates trace metals at a different rate than they are made available. Deficiencies in zinc could be “induced” in the cell by increasing the concentration of iron, manganese and cobalt; cellular iron deficiencies were observed at larger medium concentrations of zinc, manganese, copper and cobalt. Trace metal uptake by the cell was seen to parallel the utilization by multicellular organisms.
    Additional Material: 12 Ill.
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  • 5
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 443 (1978), S. 11-18 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: TlPd3O4 and TlPt3O4 - Ternary Platinum Metal Oxides with Cluster StructureThe crystal structure of the cardinal red oxide TlPd3O4, prepared by the reaction of Pdo with TlNO3 or Tl2O3 at 550°C, has been determined on powder samples by X-ray and neutron diffraction. The structure of the cubic compound (a = 959.6(2) pm; space group Fm3m; Z = 8) contains square-planar PdO4 units which are joined to a three dimensional skeleton by triply bonding oxygen atoms. The cubic and rhombicuboctahedral spaces are occupied by TlIII and TlI cations so that the compound can be formulated as a mixed valency thallium(III)-thallium(I)-oxopalladate(II). The relationship with the structure of the platinum bronzes is discussed.The analogous ternary platinum oxide TlPt3O4 (a = 966.3(2)pm) has been obtained by thermal decomposition of Tl2Pt2O7.
    Notes: Die Kristallstruktur des durch Umsetzung von Pdo mit TlNO3 bzw. Tl2O3 bei 550°C erhaltenen kardinalroten Oxides TlPd3O4 wurde durch Röntgen-und Neutronenbeugung an Pulverproben aufgeklärt. In der Struktur der kubischen Verbindung (a = 959,6(2) pm; Raumgruppe Fm3m; Z = 8) sind quadratisch planare Pdo4- Baugruppen über dreibindige O- Atome zu einem dreidimensionalen Netz verknüpft. Die würfelförmigen und rhombendodekaedrischen Hohlräume des Gerüstes sind von TlIII-bzw. TlI-Kationen besetzt, so daß die Verbindung als valenzgemischtes Thallium (III)-thallium(I)-oxopalladat(II) formuliert werden kann. Die Verwandtschaftsverhältnisse zu den Strukturen der Platinbronzen werden diskutiert.Das entsprechende Oxoplatinat TlPt3O4 (a = 966,3(2) pm) konnte durch thermische Zersetzung von Tl2Pt2O7 erhalten werden.
    Additional Material: 3 Ill.
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  • 6
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Vibrational Spectra of Solid, Liquid, and Soluted Metal Polysulphides. II Polysulphides Rb2Sn (n ≥ 4) and Na2S4All compounds have been prepared from the elements in liquid ammonia. Whereas Rb2S4 has no defined composition, the vibrational spectra of Cs2S4 and their structure similar to Na2S4 indicate that Cs2S4 is a well-defined compound in contrast to former suggestions. Rb2S5 and Cs2S6 are the members with the greatest chainlength of their homologe series.While Na2S4 still exists of S42- chains in the melt the other polysulhpides disproportionate to S3- radicals and probably monosulphide. In the melt of Cs2S6, quenched to room temperature, a double branched chain structure, the thio-analogue of dithionite, S2S42-, is suggested. All polysulphides have a mean valence frequency, which is independent of the cation and decreases with increasing chainlength.
    Notes: Alle Verbindungen wurden aus den Elementen im flüssigen Ammoniak dargestellt. Während Rb2S4 keine definierte Zusammensetzung aufweist, zeigen die Schwingungsspektren des Cs2S4 sowie deren ähnliche Struktur mit dem Na2S4, daß Cs2S4 entgegen früheren Annahmen als eigenständige Verbindung auftritt. Rb2S5 und Cs2S6 sind die langkettigsten Glieder ihrer homologen Reihe. Während Na2S4 auch in der Schmelze noch aus S42--Ketten besteht, findet für die anderen Polysulfide eine Disproportionierung in S3--Radikale und wahrscheinlich Monosulfid statt. In der auf Zimmertemperatur abgeschreckten Schmelze des Cs2S6 wird eine zweifach verzweigte Kettenstruktur, ein Thioanaloges des Dithionits, S2S42-, angenommen. Bei allen Polysulfiden gibt es eine mittlere Valenzfrequenz, die unabhängig vom Kation mit steigender Kettenlänge absinkt.
    Additional Material: 12 Ill.
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  • 7
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Cellular Physiology 98 (1979), S. 627-635 
    ISSN: 0021-9541
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: The toxicity and extent of growth inhibition produced by chloramphenicol (CAP) in CAPs Chinese hamster cells (line V79-5) was found to be dependent on the type and concentration of hexose in the medium. In high levels of glucose (6.5 mM), cultures of CAPs cells underwent 7-8 population doublings in the presence of 100 μg/ml CAP and viability then dropped rapidly. In contrast, lower concentrations of glucose (1.0 mM) permitted only limited growth (2-3 doublings) in the presence of 100 μg/ml CAP, but the cells remained viable and apparently quiescent for prolonged periods of time. The growth potential of V79-5 cells in CAP appeared specifically dependent on glucose, as mannose and galactose could not substitute for glucose. The toxicity of CAP to these cells seemed to be determined primarily by the number of cell doublings in the presence of the drug.A CAPR derivative of V79-5, designated 5-3, was analyzed in order to determine whether the requirement for glucose for cell growth in the presence of CAP also occurred in cells that were isolated as resistant to the drug. In order to rigorously control the hexose in the medium, some experiments were performed with medium containing dialysed, instead of whole, fetal calf serum. It was seen that the growth of the CAPR line in the presence (but not the absence) of 100 μg/ml CAP was dependent on glucose in the medium. Thus, resistance to CAP in these cells appears to be a conditional state, dependent on glucose for expression. Furthermore, the glucose auxotrophy of these cells in the presence of CAP suggests that CAP is still affecting some activities in cells isolated as CAPR.
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  • 8
    Publication Date: 2017-10-06
    Description: Author(s): Zhu Lin, Yong Zhou, Ling-Jian Kong, Dongsheng Tang, Hai-Zhou Lu, Shiu-Ming Huang, Rui Zhu, Jun Xu, Fang Lin, Jianbo Wang, Zhi-Min Liao, and Dapeng Yu We report the interplay between Cooper pairs in superconductor NbN and topological surface states in Sm B 6 nanowire through magnetotransport measurements. The NbN electrodes are superconductive below 13.5 K and the Sm B 6 nanowire shows the surface states dominate transport below 6 K. The tunneling bet... [Phys. Rev. B 96, 165408] Published Thu Oct 05, 2017
    Keywords: Surface physics, nanoscale physics, low-dimensional systems
    Print ISSN: 1098-0121
    Electronic ISSN: 1095-3795
    Topics: Physics
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  • 9
    Publication Date: 2017-08-12
    Description: Author(s): Zhizhou Yu, Lei Zhang, and Jian Wang By employing the nonequilibrium Green's function (NEGF) method, the transient current and the transient behavior of the spin transfer torque (STT) of the magnetic layered system are investigated within the framework of density functional theory (DFT). To reduce the huge computational cost of the tra... [Phys. Rev. B 96, 075412] Published Wed Aug 09, 2017
    Keywords: Surface physics, nanoscale physics, low-dimensional systems
    Print ISSN: 1098-0121
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  • 10
    Publication Date: 2017-09-02
    Description: Author(s): Zhijiang Ye, Arda Balkanci, Ashlie Martini, and Mehmet Z. Baykara Friction on few-layer graphene is known to exhibit unique layer dependence where friction measured via atomic force microscopy (AFM) on the nanometer scale is generally observed to decrease with increasing number of layers. However, this trend is not always observed for AFM probe tips with different... [Phys. Rev. B 96, 115401] Published Fri Sep 01, 2017
    Keywords: Surface physics, nanoscale physics, low-dimensional systems
    Print ISSN: 1098-0121
    Electronic ISSN: 1095-3795
    Topics: Physics
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