СИММЕТРИРУЮЩИЙ ТРАНСФОРМАТОР ТЯГОВОГО ЭЛЕКТРОСНАБЖЕНИЯ

The author analyzes application of balancing transformers for traction power supply at the electrified railways of JSC Russian Railways, lists positive effects of their operation in AC networks especially under the high voltage of 94 KV at Oktiabrskaya railway. The author formulates the conclusions and some suggestions concerning operation of balancing transformers, assesses possibilities of such units for the possible use during reconstruction and modernization of AC traction substations, taking into account the requirements for increased labor and electric safety.Анализ применения симметрирующих трансформаторов для тягового  электроснабжения. Дается  перечень положительных  эффектов их использовании в сетях  переменного тока, особенно при  повышенном уровне напряжения 94 кВ на примере Октябрьской железной дороги. Сформулированы выводы и предложения о пользе симметрирующих трансформаторов, оцениваются возможности агрегатов таких типов при реконструкции  и модернизации тяговых подстанций переменного тока, на которых должны с высокой обязательностью соблюдаться требования по охране труда и электробезопасности.

Mathematical model and optimization of solder microstructure in a three-layer beam

The studies were carried out with the support of RFBR grant No. 17-03-00720 "Methodology of optimizing micro construction of composite materials for objects of complex shape with enhanced dynamic strength layered by electrotechnological methods"

МИРОВЫЕ ТЕНДЕНЦИИ ТЯГОВОГО ЭЛЕКТРОСНАБЖЕНИЯ

Electrification of railways is an integral part of traffic process. Train weight growth, locomotive capacity enhancement cause growing need for electric traction supply, explain a permanent search for new efficient patterns of transport power engineering management.Электрификация железных дорог стала неотъемлемой частью перевозочного процесса. Повышение массы поезда, увеличение мощности локомотивов влечет за собой усиление тягового электроснабжения, поиск новых эффективных схем управления транспортной энергетикой

ВАЛЮТНЫЙ И ФИНАНСОВЫЙ ЛИБЕРАЛИЗМ КАК УГРОЗЫ ЭКОНОМИЧЕСКОЙ БЕЗОПАСНОСТИ РОССИИ

The authors assert that the monetary and financial policy of Russia is based on the liberal model of marketeconomy and undoubtedly attached to the principlesof liberalism. According to the results of the research presented in the article the weakening of the nationalcurrency rate in Russia is caused by the activity offinancial illicit dealers and lack of leading capacity ofthe Central Bank of Russian Federation. Monetaryrestrictions as a tool of the economy management inthe countries members of Eurasian Economic Treaty are described in the article. Failure of the liberal model and monetary financial regulations are displayed in thecontext of economic pressure on Russia and seen asa threat to the development of the economy of Russia.Статья представляет безусловную приверженность Россиипринципамлиберализмаввалютно-финансовойполитике, опирающейсяналиберальнуюмодель рыночнойэкономики. Исследованыпричинырезкого ослабления курса рубля, одними из которых являются действия мировых финансовых спекулянтов и отсутствиерегулирующейролиЦБРФ. Рассмотрена практикавалютныхограниченийстранамиЕАЭСдля управленияэкономикой. Показанпроваллиберальной модели и валютно-финансового регулирования в условиях экономического давления на РФ, выступающей угрозой для развития экономики России

РОССИЙСКИЙ КАПИТАЛИЗМ: РАЗВИТИЕ И ПЕРСПЕКТИВЫ С ПОЗИЦИЙ КЛАССИЧЕСКОЙ ПОЛИТЭКОНОМИИ

This article is devoted to the modern market model of the Russian Federation which is a classic example of the development of capitalism based on political economy. Periodization of the development of Russian capitalism, based on the analysis of macroeconomic indicators of the Russian Federation is considered. Laws of capitalist production in the history of the Russian capitalism are shown. The author focuses on the prospects for Russia associated with the rapid development of the main stages of capitalism.В статье показано, что современная модель рыночной экономики РФ представляет собой образец классического развития капитализма, закономерности которого раскрыты политэкономией. Проведена периодизация развития российского капитализма на основе анализа макроэкономических показателей РФ. Сделан вывод о наличии в современной истории российского капитализма всех закономерностей, присущих капиталистическому способу производства. Автор акцентирует внимание на перспективах России, сопряженных с развитием капитализма с учетом быстроты смены его основных этапов

Measurement of Inverse Pion Photoproduction at Energies Spanning the N(1440) Resonance

Differential cross sections for the process pi^- p -> gamma n have been measured at Brookhaven National Laboratory's Alternating Gradient Synchrotron with the Crystal Ball multiphoton spectrometer. Measurements were made at 18 pion momenta from 238 to 748 MeV/c, corresponding to E_gamma for the inverse reaction from 285 to 769 MeV. The data have been used to evaluate the gamma n multipoles in the vicinity of the N(1440) resonance. We compare our data and multipoles to previous determinations. A new three-parameter SAID fit yields 36 +/- 7 (GeV)^-1/2 X 10^-3 for the A^n_1/2 amplitude of the P_11.Comment: 14 pages, 8 figures, submitted to PR

Determination of the Dalitz plot parameter alpha for the decay eta->3pi^0 with the Crystal Ball at MAMI-B

A precise measurement of the Dalitz plot parameter, alpha, for the eta->3pi^0 decay is presented. The experiment was performed with the Crystal Ball and TAPS large acceptance photon detectors at the tagged photon beam facility of the MAMI-B electron accelerator in Mainz. High statistics of 1.8*10^6 eta->3pi^0 events were obtained, giving the result alpha = -0.032 +/- 0.002(stat) +/- 0.002(syst).Comment: 9 pages, 6 figures, published in the online-first section of EPJ A, included changes referees asked for, added DO

Neutron skin of 208^{208}Pb from Coherent Pion Photoproduction

Information on the size and shape of the neutron skin on $^{208}$Pb has been extracted from coherent pion photoproduction cross sections measured using the Crystal Ball together with the Glasgow tagger at the MAMI electron beam facility. On exploitation of an interpolated fit of a theoretical model to the measured cross sections the half-height radius and diffuseness of the neutron distribution are found to be 6.70$\pm 0.03(stat)$ fm and 0.55$\pm 0.01(stat)$$^{+0.02}_{-0.03}(sys)$ fm respectively, corresponding to a neutron skin thickness $\Delta r_{np}$=0.15$\pm 0.03(stat)$$^{+0.01}_{-0.03}(sys)$ fm. The results give the first successful extraction of a neutron skin with an electromagnetic probe and indicate the skin of $^{208}$Pb has a halo character. The measurement provides valuable new constraints on both the structure of nuclei and the equation of state for neutron-rich matter.Comment: 4 figures 5 pages. Version submitted to journal. Includes additional studies of systematic effects in the extracted diffuseness, which led to a small increase in the quoted systematic error. These additional studies are discussed in the revised manuscript. Also includes minor editorial improvements to the tex