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Laxman Singh Ravikant Sharma Narayan Singh Atendra Kumar Dev K Mahato Youngil Lee Mikhael Bechelany KD Mandal 《Progress in Crystal Growth and Characterization of Materials》2021,67(4):100542
This review paper covers the low temperature wet growth of nano-engineered particles of ZnO-based mixed metal oxides, their growth mechanism, and characterization using X-ray diffraction, SEM, TEM and IR, UV–visible, and XPS spectral techniques. Main focus of this article is centered on low temperature semi-wet methods of synthesis that are suitable for large scale production of zinc oxide-based systems mixed with iron oxide, copper oxide, nickel oxide and cobalt oxide. These mixed metal oxides have broad industrial applications as catalyst, semiconductors, adsorbents, superconductors, electro-ceramics, and antifungal agents in addition to extensive applications in medicines. This paper discusses the low-cost and environment friendly synthesis of these mixed metal oxides, measurement of properties and applicability of these materials systems. 相似文献
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Crystal shape, temperature gradient at the interface and efficiency of solute rejection are studied as a function of the initial melt temperature for gallium single crystals grown by the pulling technique. In an alloy containing about 100 ppm Ag, the critical temperature gradient where a constitutional supercooling occurs, is found to be close to 8.8°C cm−1. 相似文献
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We consider a collapsing spherically symmetric inhomogeneous dust cloud in higher dimensional space-time. We show that the
central singularity of collapse can be a strong curvature or a weak curvature naked singularity depending on the initial density
distribution. 相似文献
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Nadine S Simons-Weidenmaier Maruschka Weber Claudia F Plappert Peter KD Pilz Susanne Schmid 《BMC neuroscience》2006,7(1):38
Background
Short-term habituation of the startle response represents an elementary form of learning in mammals. The underlying mechanism is located within the primary startle pathway, presumably at sensory synapses on giant neurons in the caudal pontine reticular nucleus (PnC). Short trains of action potentials in sensory afferent fibers induce depression of synaptic responses in PnC giant neurons, a phenomenon that has been proposed to be the cellular correlate for short-term habituation. We address here the question whether both this synaptic depression and the short-term habituation of the startle response are localized at the presynaptic terminals of sensory afferents. If this is confirmed, it would imply that these processes take place prior to multimodal signal integration, rather than occurring at postsynaptic sites on PnC giant neurons that directly drive motor neurons. 相似文献5.
C. Courtot P. Desvignes Ch. Lormand E. Rupp F. Lehmann R. Weinland Fr. Ensgraber und P. Barge 《Fresenius' Journal of Analytical Chemistry》1918,57(8):392-396
Ohne Zusammenfassung 相似文献
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Hunka DE Herman DC Lormand KD Jaramillo DM Land DP 《Langmuir : the ACS journal of surfaces and colloids》2005,21(18):8333-8337
The decomposition of 1,1-dichloroethene on Pd(111) is investigated using conventional thermal desorption, laser-induced thermal desorption (LITD), and FT reflection absorption infrared spectroscopy (FT-RAIRS). The decomposition mechanism produces at least three hydrocarbon surface intermediates, including ethylidyne. Thermal desorption results differ between high and low coverages because of relative surface concentrations of Cl and H in combination with kinetic effects. 相似文献
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S. Abdul Sattar B. Seetharami Reddy V. Koteswara Rao K. Ramnarayana G. J. Naga Raju S. Bhuloka Reddy T. KD. Phanisree P. V. Madhusudhana Rao 《X射线光谱测定》2012,41(2):111-116
A trace elemental analysis was carried out in various parts of 12 anticancer medicinal plants, using the PIXE (particle‐induced X‐ray emission) technique. A 3‐MeV proton beam was used to excite the samples, and spectra were recorded using a Si (Li) detector. Data analysis was done using the GUPIX software. The elements Cl, K, Ca, Ti, V, Mn, Fe, Ni, Cu, Zn, Br and Sr were identified, and their concentrations estimated. The results of the present study provide justification for the usage of these medicinal plants in the development of anticancer drugs. Copyright © 2012 John Wiley & Sons, Ltd. 相似文献
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Rudolf Ochs W. Fresenius P. Saccardi Weber J. M. Kolthoff H. Hamer H. Röttger E. Schowalter E. Spaeth A. Gompf J. Gerum G. Metge A. Röhrig L. Fresenius G. de Astis A. Bornträger H. Astruc Radet M. Martini A. Nourrisson L. Roos A. Kling A. Lassieur M. François Ch. Lormand J. Dubaquié P. Chauvet J. L. Chelle G. Filaudeau Bonis H. Boßelmannn F. Mach M. Fischler C. von der Heide Joh Pinnow D. Fonzes-Diakon L. Semichon K. Kroemer R. Meissner A. Widmer O. Kalberer L. Minder Th. v. Fellenberg G. Chancel P. Balavoine X. Roques C. Lagneau von der Heide 《Analytical and bioanalytical chemistry》1926,68(12):469-480
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