Is the Spin of the Black Hole in GX 339–4 Negative? by Andrzej A. Zdziarski, Srimanta Banerjee, Michał Szanecki, Ranjeev Misra, Gulab Dewangan

“…When adding a warm corona above the disk (as proposed before for both active galactic nuclei and accreting binaries), we find that the spin is weakly constrained but consistent with zero. In all cases, the fitted inclination is low, ≈30°–34°. …”
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The Fourth Energy Transition and the European Energy Crisis: Lessons for the EAEU by Z. V. Sergeeva

“…Over the recent decade many developed countries took a new energy policy course, substituting fossil fuels with renewable energy sources (RES). The main driver behind it is the aspiration to achieve carbon neutrality by mid-century to prevent climate change. …”
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Results of kinetostatic research of road energy harvesting system with slider-rocker mechanism by A. V. Prudiy, Yu. M. Lyashenko

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Accelerating Disease Model Parameter Extraction: An LLM-Based Ranking Approach to Select Initial Studies for Literature Review Automation by Masood Sujau, Masako Wada, Emilie Vallée, Natalie Hillis, Teo Sušnjak

“…By framing the selection criteria of articles as a question–answer task and utilising zero-shot chain-of-thought prompting, the proposed method achieves a saving of at least 70% work effort compared to manual screening at a recall level of 95% (NWSS@95%). …”
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Reserves and extraction of rare earth metals and elements as a key factor in the renewable energy sector development at the the world economy transformation current stage by R. D. Mingaleeva

“…The use of renewable energy sources, which are experiencing a period of rapid development, is one of the stages of the current energy transition, as the world community tries to ensure a future with zero CO2 emissions and to achieve energy independence and security. …”
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Assessment of Possibilities of Using Local Renewable Resources in Road Infrastructure Facilities—A Case Study from Poland by Agnieszka Stec, Daniel Słyś, Przemysław Ogarek, Kacper Bednarz, Izabela Bartkowska, Joanna Gwoździej-Mazur, Małgorzata Iwanek, Beata Kowalska

“…To address these challenges, the focus has shifted to low- and zero-emission technologies that utilize alternative sources of water and energy. …”
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Low-dimensional solid-state single-photon emitters by Chen Jinli, Cui Chaohan, Lawrie Ben, Xue Yongzhou, Guha Saikat, Eichenfield Matt, Zhao Huan, Yan Xiaodong

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ROLE OF THE STRUCTURAL FACTOR IN THE DISTRIBUTION OF HIGH-RADON GROUNDWATER IN THE SOUTHWESTERN FLANK OF THE SOUTH BAIKAL RIFT BASIN by K. Zh. Seminsky, Yu. P. Burzunova, A. K. Seminsky, A. A. Bobrov

Subjects: “…this article discusses the distribution patterns of high-radon groundwater at the southwestern shore of lake baikal. this region is a flank of the south baikal rift basin, characterized by high geodynamic activity and complex fault patterns, without any special geochemical conditions with regard to the content of uranium in the rocks. based on our observations and measurements, we consolidated the first massive database on radon volume activity (q) in a variety of local water sources. in the kultuk–vydrino area, the q values vary from zero to 81.1 bq/l, according to the analysis of the water samples from 93 springs, lakes, small streams, wells, and drilled holes. the highest concentrations of radon are discovered in the groundwater samples. such values are unevenly scattered across the study area. the chain of the maximum q values trends northwestwards along the lake baikal shore. this distribution pattern of radon, as well as the locations of individual water sources with q>15 bq/l are predetermined by the structural factor. the paragenetic analysis of faults and joints in the kultuk–vydrino area shows that this factor includes both the structure and stages in the development of the regional largest main sayan fault zone (the southwestern flank of the south baikal basin is a segment of this zone). the water sources with increased concentrations of radon are located in zones with a high density of the 2nd order faults, especially on sites wherein the nw-striking faults cross the transverse faults that have experienced repeated activation. temperature t is an additional factor influencing the degree of radioactivity in water. a relationship between t and q is reverse. water sources with q>15 bq/l associated with the 2nd order fault zones may occur also due to a locally lower temperature of groundwater. our study gives evidence that the southwestern coast of lake baikal is promising for finding high-radon water sources. using such water in balneo¬logy can become a valuable contribution to the tourism and recreational potential of the region. this prospect is especially important for the town of baikalsk that is now developing without its township-forming enterprise: the notorious pulp-and-paper mill has been completely shut down.…”
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Performance comparison of a building-integrated photovoltaics (BIPV) module with patterned glass in Korean weather by Ji Woo Sohn, Hongjun Jang, Young-Su Kim, Donghwan Kim, Sungho Hwang, Yoonmook Kang

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Catalyst layer at the junction of a forward bias bipolar membrane for CO2 electrolysis by Matthieu Dessiex, Vincent Plouzennec, Sophia Haussener, Felix N. Büchi

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Mesa Redonda: Políticas de Educação Infantil desafios e perspectivas by Jodete Bayer Gomes Fullgraf

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Synchronized Switch Harvesting on Capacitor Integrated Circuit for Piezoelectric Energy Harvesting Application by Shiquan FAN, Yunxiang CHEN, Ying XIE, Chenxi YUAN

“…An improved efficient energy harvesting integrated circuit is proposed for piezoelectric energy sources. By using the synchronized switch harvesting on capacitor (SSHC) interface circuit, the charge re-sharing is realized when the internal current source of the piezoelectric energy source crosses zero. …”
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Cusp-type bi-directional radiofrequency plasma thruster toward contactless active space debris removal by Kazunori Takahashi

“…Here it is demonstrated that a symmetric cusp-field configuration can increase the force exerted to the debris under the circumstance that the thrust is maintained at nearly zero level by the bi-directional ejection of the plasma, where the convergent-divergent MNs are formed near the two open-source exits.…”
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Investigating the effects of calibration errors on the spatial resolution of OPM-MEG beamformer imaging by Shengjie Qi, Xinda Song, Le Jia, Zhaoxin Duan, Yan Dai, Jing Zhang, Xiaolin Ning

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Towards complexity of primary-deformed Virasoro circuits by Johanna Erdmenger, Jani Kastikainen, Tim Schuhmann

“…We consider a cost function induced by the Fubini-Study metric and provide a universal expression for its time-evolution to quadratic order in the primary deformation for general source profiles. For circuits generated by the Virasoro zero mode and a primary, we obtain a non-zero cost only if spatial inhomogeneities are sufficiently large. …”
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A New Voltage-Doubler Rectifier for High-Efficiency LLC Resonant Converters by Jung-Hyun Yeo, Chong-Eun Kim

“…This is primarily due to its ability to perform zero-voltage switching (ZVS) on primary switches and zero-current switching (ZCS) on secondary rectifier switches. …”
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Dynamic Analysis of a Nonlinear Timoshenko Equation by Jorge Alfredo Esquivel-Avila

“…We consider nonlinear dissipation and a nonlinear source term. We prove blowup of solutions as well as convergence to the zero and nonzero equilibria, and we give rates of decay to the zero equilibrium. …”
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Propagation velocity of a vibration velocity wave, i.e. acoustic velocity wave by Roman WYRZYKOWSKI

“…The velocity of an acoustic velocity wave was calculated for a point source, for a cylindrical source of zero order and for a circular piston and ring in a baffle.…”
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Lie Group Analysis of a Flow with Contaminant-Modified Viscosity by Raseelo J. Moitsheki

“…Lie group techniques resulted in a rich array of admitted point symmetries for special cases of the source term. We also employ potential symmetry methods for chosen cases of concentration and a zero source term. …”
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Redution of Overvoltages under Connection on a High-Voltage Cable Line Due to Optimal Controlled Switching by Lobodzinskiy V., Buryk N., Spinul L., Chibelis V., Illina О.

“…The most significant result is the method of numerical simulation of the cable line that allows you to analyze transients when each phase of a three-phase cable line is connected to a three-phase source with a time delay, the switching angle of all phases is zero. …”
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