Distributed automatic control of technological processes in conditions of weightlessness

Some problems associated with the automatic control of liquid metal and plasma systems under conditions of weightlessness are examined, with particular reference to the problem of stability of liquid equilibrium configurations. The theoretical fundamentals of automatic control of processes in electrically conducting continuous media are outlined, and means of using electromagnetic fields for simulating technological processes in a space environment are discussed

Clinical case of heavy preeclampsia, complicated by complete mudderable placenta and antenatal fetal death

The article deals with a clinical case of delivery of a 29 years old primipara patient, upon admission to the emergency department of the Perinatal Center, who was diagnosed with premature placental abruption, antenatal fetal death and preeclampsia, as well as HELLP syndrome. On the operation of Cesarean section, the Cuveler's uterus was revealed, the question of the preservation of the reproductive organ was resolved. The use of a complex of measures for the correct intraoperative obstetric tactics made it possible to preserve the uterus and the possibility of the primipara in the future to realize their reproductive function.В статье рассмотрен клинический случай родоразрешения первородящей пациентки 29 лет, при поступлении в приёмное отделение Перинатального центра у которой диагностированы преждевременная отслойка плаценты, антенатальная гибель плода и преэклампсия, а также HELLP- синдром. На операции кесарева сечения выявлена матка Кювелера, решался вопрос о сохранении репродуктивного органа. Применение комплекса мероприятий по верной интраоперационной акушерской тактике позволили сохранить матку и возможность первородящей в дальнейшем реализовать свою репродуктивную функцию

Clinical case of heavy preeclampsia, complicated by complete mudderable placenta and antenatal fetal death

The article deals with a clinical case of delivery of a 29 years old primipara patient, upon admission to the emergency department of the Perinatal Center, who was diagnosed with premature placental abruption, antenatal fetal death and preeclampsia, as well as HELLP syndrome. On the operation of Cesarean section, the Cuveler's uterus was revealed, the question of the preservation of the reproductive organ was resolved. The use of a complex of measures for the correct intraoperative obstetric tactics made it possible to preserve the uterus and the possibility of the primipara in the future to realize their reproductive function.В статье рассмотрен клинический случай родоразрешения первородящей пациентки 29 лет, при поступлении в приёмное отделение Перинатального центра у которой диагностированы преждевременная отслойка плаценты, антенатальная гибель плода и преэклампсия, а также HELLP- синдром. На операции кесарева сечения выявлена матка Кювелера, решался вопрос о сохранении репродуктивного органа. Применение комплекса мероприятий по верной интраоперационной акушерской тактике позволили сохранить матку и возможность первородящей в дальнейшем реализовать свою репродуктивную функцию

Data-Driven Machine Learning Methods for Nontechnical Losses of Electrical Energy Detection: A State-of-the-Art Review

Nontechnical losses of electrical energy (NTLEE) have been a persistent issue in both the Russian and global electric power industries since the end of the 20th century. Every year, these losses result in tens of billions of dollars in damages. Promptly identifying unscrupulous consumers can prevent the onset of NTLEE sources, substantially reduce the amount of NTLEE and economic damages to network grids, and generally improve the economic climate. The contemporary advancements in machine learning and artificial intelligence facilitate the identification of NTLEE sources through anomaly detection in energy consumption data. This article aims to analyze the current efficacy of computational methods in locating, detecting, and identifying nontechnical losses and their origins, highlighting the application of neural network technologies. Our research indicates that nearly half of the recent studies on identifying NTLEE sources (41%) employ neural networks. The most utilized tools are convolutional networks and autoencoders, the latter being recognized for their high-speed performance. This paper discusses the main metrics and criteria for assessing the effectiveness of NTLEE identification utilized in training and testing phases. Additionally, it explores the sources of initial data, their composition, and their impact on the outcomes of various algorithms. © 2023 by the authors.Ministry of Education and Science of the Russian Federation, Minobrnauka: FEUZ-2023-0013This work was partially supported by the Ministry of Science and Higher Education of the Russian Federation (through the basic part of the government mandate, project No. FEUZ-2023-0013)

A study of the centrally produced baryon-antibaryon systems in pp interactions at 450 GeV/c

A study of the centrally produced ppbar, ppbarpi, ppbarpipi and lambda lambda channels has been performed in pp collisions using an incident beam momentum of 450 GeV/c. No significant new structures are observed in the mass spectra, however, important new information on the production dynamics is obtained. A systematic study of the production properties of these systems has been performed and it is found that these systems are not produced dominantly by double Pomeron exchange.Comment: 13 pages, Latex, 4 Figure

A study of pseudoscalar states produced centrally in pp interactions at 450 GeV/c

A study has been made of pseudoscalar mesons produced centrally in pp interactions. The results show that the eta and etaprime appear to have a similar production mechanism which differs from that of the pi0. The production properties of the eta and etaprime are not consistent with what is expected from double Pomeron exchange. In addition the production mechanism for the eta and etaprime is such that the production cross section are greatest when the azimuthal angle between the pT vectors of the two protons is 90 degrees.Comment: 11 pages, Latex, 3 Figure

A measurement of the branching fractions of the f1(1285) and f1(1420) produced in central pp interactions at 450 GeV/c

A study of the f1(1285) and f1(1420) produced in central pp interactions has been performed. For the first time in a single experiment the branching fractions of both mesons in all major decay modes have been determined. Both the f1(1285) and f1(1420) are consistent with being produced by double Pomeron exchange.Comment: 15 pages, Latex, 5 Figures, submitted to Physics Letters

A study of the centrally produced phiphi system in pp interactions at 450 GeV/c

The reaction pp to pfps(K+K-K+K-) in which the K+K-K+K- system is centrally produced has been studied at 450 GeV/c. Phi phi production has been found to dominate this reaction and is compatible with being produced by double Pomeron exchange. An angular analysis of the phi phi system favours JPC = 2++ and its dPT dependence is similar to that observed for glueball candidates.Comment: 11 pages, Latex, 4 Figure

A partial wave analysis of the centrally produced pi0pi0 system in pp interactions at 450 GeV/c

A partial wave analysis of the centrally produced pi0pi0 channel has been performed in pp collisions using an incident beam momentum of 450 GeV/c. An unambiguous physical solution has been found. Evidence is found for the f0(980), f0(1300) and f0(1500) in the the S-wave. and the f2(1270) is observed dominantly in the D0-wave. In addition, there is evidence for a broad enhancement in the D-wave below 1 GeV.Comment: 12 pages, Latex, 4 Figure

A partial wave analysis of the centrally produced K+K- and K0K0 systems in pp interactions at 450 GeV/c and new information on the spin of the fJ(1710)

A partial wave analysis of the centrally produced K+K- and K0K0 channels has been performed in pp collisions using an incident beam momentum of 450 GeV/c. An unambiguous physical solution has been found in each channel. The striking feature is the observation of peaks in the S-wave corresponding to the f0(1500) and fJ(1710) with J = 0. The D-wave shows evidence for the f2(1270)/a2(1320), the f2(1525) and the f2(2150) but there is no evidence for a statistically significant contribution in the D-wave in the 1.7 GeV mass region.Comment: 15 pages, Latex, 5 Figure