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81.
We use the hydrodynamic formulation of Scale Relativity Theory to analyze the TDGL equation. As a result, London equations come naturally from the system, when equating to zero the real velocity, the imaginary one turns real, the superconducting fluid act as a subquantum medium energy accumulator, the vector potential, the real and the imaginary velocity are all written in terms of the elliptic function. When solving the resulted system by means of WKBJ method, we get tunneling and quantization. In other words, scale transformation laws produce, on the motion equation of particles governed by the TDGL equation, under some peculiar assumptions, effects which are analogous to those of a “macroscopic quantum mechanics”. 相似文献
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Ohne Zusammenfassung 相似文献
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T. Çuçi J. Thereska N. Dhamo E. Plasari 《Journal of Radioanalytical and Nuclear Chemistry》1989,136(6):449-453
An experiment on rabbits was carried out with the aim to check results obtained formerly with the help of the neutron activation analysis indicating that Na+ ions can be /by contrast to K+ ions/ only very slowly removed from the bone tissue by extraction with water. The data resulting from a radiotracer experiment with22Na are in a good agreement with the above mentioned results. 相似文献
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E. Plevová A. Kožušníková L. Vaculíková G. Simha Martynková 《Journal of Thermal Analysis and Calorimetry》2010,101(2):657-664
The definition as well as prediction of rock thermal behavior seems to be a quite difficult problem significantly effected
by rock composition and structure. Temperature increase causes various changes of rock material (such as decomposition, oxidation,
phase and polymorphic transformation, etc.). These changes are connected to thermal expansion with following appearance of
tensions and cracks in minerals and rock structure. After consequential temperature decrease, developed tensions and cracks
still influence the process. This study presents the application of thermogravimetric analysis, differential thermal analysis
and thermomechanical analysis in characterization of selected marble thermal behavior. The texture and morphological orientation
of calcite grains for marble samples was determined by optical microscopy. FTIR spectroscopy application along with X-ray
diffraction (XRD) extended data about mineralogical composition. According to optical microscopy, the calcite grains show
marked morphological anisotropy in one direction for some samples. Therefore, the thermal expansion had to be measured in
three different (perpendicular to each other) directions. It is evident, that the effect of temperature on the final marble
properties depends not only on mineralogical composition, but also on structure, texture and morphological orientation of
grains. All these facts significantly influence the interpretation of differences in various marble thermal behavior. 相似文献
90.
Cristina Pinedo-Rivilla Mariana Carrara Cafêu Josefina Aleu Casatejada Ângela Regina Araujo Isidro G. Collado 《Tetrahedron: Asymmetry》2009,20(23):2666-2672
A set of five fungal species, Botrytis cinerea, Trichoderma viride and Eutypa lata, and the endophytic fungi Colletotrichum crassipes and Xylaria sp., was used in screening for microbial biocatalysts to detect monooxygenase and alcohol dehydrogenase activities (for the stereoselective reduction of carbonyl compounds). 4-Ethylcyclohexanone and acetophenone were biotransformed by the fungal set. The main reaction pathways involved reduction and hydroxylations at several positions including tertiary carbons. B. cinerea was very effective in the bioreduction of both substrates leading to the chiral alcohol (S)-1-phenylethanol in up to 90% enantiomeric excess, and the cis–trans ratio for 4-ethylcyclohexanol was 0:100. trans-4-Ethyl-1-(1S-hydroxyethyl)cyclohexanol, obtained from biotransformation by means of an acyloin-type reaction, is reported here for the first time. The absolute configurations of the compounds trans-4-ethyl-1-(1S-hydroxyethyl)cyclohexanol and 4-(1S- and 4-(1R-hydroxyethyl)cyclohexanone were determined by NMR analysis of the corresponding Mosher’s esters. 相似文献