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排序方式: 共有119条查询结果,搜索用时 15 毫秒
1.
Janko Dimitriev Michail Arnaudov Vesselin Dimitrov 《Monatshefte für Chemie / Chemical Monthly》1976,29(21):1335-1343
Studies of glasses and their crystalline products in the TeO2–V2O5 system were made in the 1400–400 cm–1 range. A continuous shift of the V=O-band from 1020 cm–1 to 940 cm–1 was found in the glasses with decreasing concentration of V2O5, as well as a sharp decrease in the intensity at 830 cm–1. On the basis of the results obtained, it is concluded that with increasing TeO2 content, the structure of the glasses is changed, caused by the breaking of the V–O–V bonds and the formation of Te–O–Te bridges.The IR-spectrum of the 2TeO2·V2O5 compound in both crystalline and vitreous states was studied for the first time. The behaviour of the absorption bands is related to the structure of the glasses studied. 相似文献
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Zusammenfassung Alle irreduziblen Systeme von n hermitischen Matrizen j, die den zyklischen Vertauschungsrelationen dritten Grades (s. Gl. (14)) genügen, werden explizite aufgefunden. Es zeigt sich insbesondere, dass bei n=3nur zwei solche nichttriviale Lösungen existieren, eine sechsreihige und eine vierreihige. Die erste ist mit dem von Votruba und Lokajíek zwecks Beschreibung des Verhaltens des isotopen Spins des Nukleons eingeführten Matrixsystem äquivalent. Die zweite Lösung erfüllt zugleich auch die Kemmerschen Relationen. Für jedes n>3gibt es nur je eine nichttriviale Lösung, nämlich die Kemmersche von der Ordnung N=n+1. 相似文献
4.
Janko Marovt 《Proceedings of the American Mathematical Society》2006,134(4):1065-1075
Let be a compact Hausdorff space which satisfies the first axiom of countability, let and let , be the set of all continuous functions from to If , ,is a bijective multiplicative map, then there exist a homeomorphism and a continuous map such that for all and for all
5.
Viktor Reshetnikov Steffen Daum Dr. Christina Janko Weronika Karawacka Dr. Rainer Tietze Prof. Dr. Christoph Alexiou Dr. Solomiya Paryzhak Dr. Tetiana Dumych Prof. Dr. Rostyslav Bilyy Dr. Philipp Tripal Dr. Benjamin Schmid Dr. Ralf Palmisano Prof. Dr. Andriy Mokhir 《Angewandte Chemie (International ed. in English)》2018,57(37):11943-11946
Mitochondrial membrane potential is more negative in cancer cells than in normal cells, allowing cancer targeting by delocalized lipophilic cations (DLCs). However, as the difference is rather small, these drugs affect also normal cells. Now a concept of pro‐DLCs is proposed based on an N‐alkylaminoferrocene structure. These prodrugs are activated by the reaction with reactive oxygen species (ROS) forming ferrocenium‐based DLCs. Since ROS are overproduced in cancer, the high‐efficiency cancer‐cell‐specific targeting of mitochondria could be achieved as demonstrated by fluorescence microscopy in combination with two fluorogenic pro‐DLCs in vitro and in vivo. We prepared a conjugate of another pro‐DLC with a clinically approved drug carboplatin and confirmed that its accumulation in mitochondria was higher than that of the free drug. This was reflected in the substantially higher anticancer effect of the conjugate. 相似文献
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Janko Drnovšek Igor Pušnik Jovan Bojkovski Gaber Begeš 《Accreditation and quality assurance》2010,15(2):125-131
The article describes the project of regional cooperation in proficiency testing within CARDS 2006 (assistance programme to
the Western Balkans), which was coordinated by European Committee for Standardization, European Commission and European Free
Trade Association and conducted by the University of Ljubljana, Faculty of Electrical Engineering, Laboratory of Metrology
and Quality. The later is the holder of the national standard for thermodynamic temperature as well as an accredited proficiency
testing provider and also accredited as a calibration, testing and inspection laboratory. It is also responsible for graduate
study programme Quality Engineering. Proficiency testing was considered as a core activity of the entire project, but additionally
as a very appropriate platform for knowledge transfer of EU technical legislation in selected sectors, metrology, testing
and quality assurance in general. The project had a high added value for participating laboratories in countries of Western
Balkans, because it required an active role of all participating laboratories, assured participation of staff from national
metrology institutions, all national accreditation bodies, and was supported by national quality infrastructures, such as
standardization, governmental institutions etc. in the entire Western Balkans region. The activities stimulated progress in
the area of conformity assessment, added knowledge to the implementation of technical directives and development of the technical
part of national legislation and therefore facilitated the process toward the accession to the European Union. The main objective
was therefore to organize proficiency testing in those sectors (construction, consumer protection and environment) that were
vital in the pre-accession process of countries seeking full implementation of EU technical legislation. 相似文献
9.
Zvonimir Janko 《Israel Journal of Mathematics》2006,154(1):185-189
We classify minimal non-quaternion-free finite 2-groups which possess a nonmodular proper subgroup. 相似文献
10.
Janko Milutinovi 《Physics letters. [Part B]》1984,140(5-6):324-328
It is shown, contrary to the recent claim in literature, that gluino exchange in supersymmetric proton decay does not vanish in general. In N=1 supergravity theory it could be an important or even dominant contribution, which would imply the often-mentioned model independent main mode
. We also summarize the situation in the case of charged W-ino exchange incorporating the new measurement of B meson lifetimes. 相似文献