8,057 research outputs found
Анализ релейной защиты и автоматики района параллельных линий 110 кВ «Анжерская – Разъезд 3704» Кузбасской энергосистемы
Объектом анализа является релейная защита и автоматика района параллельных линий 110кВ «Анжерская – Разъезд 3704» Кузбасской энергосистемы Цель работы: анализ имеющегося оборудования защиты параллельных линий 110кВ, уставок защиты и согласованность степеней. В процессе исследования составлена схема замещения; рассмотрен состав защит линий и силовых трансформаторов; рассчитаны уставки и чувствительность защищаемой линии; обсуждены результаты выполненной работы.
В результате исследования была рассмотрена релейная защита и автоматика параллельной линии 110кВ «АнжерсThe object of analysis is the relay protection and automation area of parallel lines 110 "Anzherskaya - Departure of 3704" Kuzbass power system. Objective: To analyze the existing equipment protection of parallel lines of 110 kV, protection settings and consistency degrees
The study is made equivalent circuit; considered part of protection lines and power transformers; designed set point and the sensitivity of the protected line; We discussed the results of the work performed
Protein polymorphisms in strains of golden hamsters
At present only a few data is available about biochemical polymorphisms in the golden hamster. But the great number of strains of this species used in biomedical research requires the establishment of specific marker traits which can be used forgenetic control purposes.This study gives an overview on the degree of variability on the protein level among a series of 17 strains of hamsters.The results show 9 of about 40 stained isoproteins to express electrophoretic variants (22.5 %). Unexpectedly most of the phenotypes occur not only between but also within the strains despite more than 25 generations of inbreeding.The reason for this level of heterogeneity is not yet really obvious. Several possible points of influence are discussed, 0.3. an increased mutation rate or physiological specificities. At present, nongenetic reasons seem to be the most likely explanationfor most of the polymorphisms
Atomic and nuclear physics with stored particles in ion traps
Trapping and cooling techniques play an increasingly important role in many areas of science. This review concentrates on recent applications of ion traps installed at accelerator facilities to atomic and nuclear physics such as mass spectrometry of radioactive isotopes, weak interaction studies, symmetry tests, determination of fundamental constants, laser spectroscopy, and spectroscopy of highly-charged ions. In addition, ion traps are proven to be extremely efficient devices for (radioactive) ion beam manipulation as, for example, retardation, accumulation, cooling, beam cleaning, charge-breeding, and bunching
The Reaction 7Li(pi+,pi-)7B and its Implications for 7B
The reaction 7Li(pi+,pi-)7B has been measured at incident pion energies of
30-90 MeV. 7Li constitutes the lightest target nucleus, where the pionic charge
exchange may proceed as a binary reaction to a discrete final state. Like in
the Delta-resonance region the observed cross sections are much smaller than
expected from the systematics found for heavier nuclei. In analogy to the
neutron halo case of 11Li this cross section suppression is interpreted as
evidence for a proton halo in the particle-unstable nucleus 7B.Comment: 4 pages, 4 figure
Serumproteinbindung von ACTH
Mit Hilfe von Saccharosedichtegradientenzentrifugation wurde die Bindung von tritiummarkiertem und nichtmarkiertem 1–23-Corticotropin gezeigt. Es handelt sich um eine Bindung an Albumin.Binding of3H-labelled and/or unlabelled 1–23-corticotropin to serumproteins resp. albumin was shown by sucrose density gradient centrifugation
- …