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Crystal and electronic structure engineering of tin monoxide by external pressure

Journal of Advanced Ceramics 2021年第3期10卷 565-577页

作者： Kun LI Junjie WANG vladislav ABLATOV Yutong GONG NaotoUMEZAWA Tomofumi TADA Hideo HOSONO Artem ROGANOV State Key Laboratory of Solidification Processing Northwestern Polytechnical UniversityXi’an 710072China International Center for Materials Discovery School of Materials Science and EngineeringNorthwestern Polytechnical UniversityXi’an 710072China Samara Center for Theoretical Materials Science(SCTMS) Samara State Technical UniversitySamara 443100Russia Samara Center for Theoretical Materials Science(SCTMS) Samara UniversitySamara 443011Russia Semiconductor R&D Center Samsung ElectronicsGyeonggi-do 18448Republic of Korea Materials Research Center for Element Strategy Tokyo Institute of TechnologyKanagawa 226-8503Japan Skolkovo Institute of Science and Technology Moscow 143026Russia Moscow Institute of Physics and Technology Dolgoprudny 141700Russia

Although tin monoxide (SnO) is an interesting compound due to its p-type conductivity,a widespread application of SnO has been limited by its narrow band gap of 0.7 *** this work,we theoretically investigate the structural and electronic properties of several SnO phases under high pressures through employing van der Waals (vdW) *** calculations reveal that a metastable SnO (β-SnO),which possesses space group P2_(1)/c and a wide band gap of 1.9 eV,is more stable than α-SnO at pressures higher than 80 ***,a stable (space group P2/c) and a metastable (space group Pnma) phases of SnO appear at pressures higher than 120 *** and topological analyses show that P2/c-SnO has a high possibility to directly transform to β-SnO at around 120 *** work also reveals that β-SnO is a necessary intermediate state between high-pressure phase Pnma-SnO and low-pressure phase α-SnO for the phase transition path Pnma-SnO →β-SnO →α-*** phase transition analyses indicate that there is a high possibility to synthesize β-SnO under high-pressure conditions and have it remain stable under normal ***,our study reveals that the conductive property of β-SnO can be engineered in a low-pressure range (0-9 GPa)through a semiconductor-to-metal transition,while maintaining transparency in the visible light range.

关键词： tin monoxide van der Waals(vdW) topological relationship phase transition band gap

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High perioperative lactate levels and decreased lactate clearance are associated with increased incidence of posthepatectomy liver failure

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Hepatobiliary & Pancreatic Diseases International 2021年第6期20卷 592-594页

作者： Mihai Popescu Simona Dima vladislav Brasoveanu Andrada Tudor Mihai Simionescu Dana Tomescu “Carol Davila”University of Medicine and Pharmacy Bucharest 020021Romania Department of Anesthesia and Intensive Care Fundeni Clinical InstituteBucharest 022328Romania “Dan Setlacec”Center for General Surgery and Liver Transplantation Fundeni Clinical InstituteBucharest 022328Romania

To the Editor:Extensive liver resection represents a life-saving intervention in patients with primary or secondary liver *** advances made in the field of chemotherapy and surgical techniques have translated into a greater number of patients who are older and with more complex comorbidities presenting for major liver surgery[1]and thus having an increased risk of perioperative mortality.

关键词： chemotherapy liver mortality

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Optical Neural Network Architecture for Deep Learning with Temporal Synthetic Dimension

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Chinese Physics Letters 2023年第3期40卷 13-18页

作者：彭擘颜硕成大立俞丹英刘展维 vladislav V.Yakovlev 袁璐琦陈险峰 State Key Laboratory of Advanced Optical Communication Systems and Networks School of Physics and AstronomyShanghai Jiao Tong UniversityShanghai 200240China Ginzton Laboratory and Department of Electrical Engineering Stanford UniversityStanfordCA 49305USA Texas A&M University College StationTexas 77843USA Shanghai Research Center for Quantum Sciences Shanghai 201315China Collaborative Innovation Center of Light Manipulation and Applications Shandong Normal UniversityJinan 250358China

The physical concept of synthetic dimensions has recently been introduced into *** fundamental physics and applications are not yet fully understood,and this report explores an approach to optical neural networks using synthetic dimension in time domain,by theoretically proposing to utilize a single resonator network,where the arrival times of optical pulses are interconnected to construct a temporal synthetic *** set of pulses in each roundtrip therefore provides the sites in each layer in the optical neural network,and can be linearly transformed with splitters and delay lines,including the phase modulators,when pulses circulate inside the *** linear transformation can be arbitrarily controlled by applied modulation phases,which serve as the building block of the neural network together with a nonlinear component for *** validate the functionality of the proposed optical neural network for the deep learning purpose with examples handwritten digit recognition and optical pulse train distribution classification *** proof of principle computational work explores the new concept of developing a photonics-based machine learning in a single ring network using synthetic dimensions,which allows flexibility and easiness of reconfiguration with complex functionality in achieving desired optical tasks.

关键词： network resonator neural

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The determination of white dwarf parameters in dwarf novae by optical spectral modeling

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Research in Astronomy and Astrophysics 2021年第7期21卷 37-40页

作者： Anastasiya Andreevna Dudnik Arina Alekseevna Mitrofanova vladislav Vladimirovich Shimansky Nikolay Vladimirovich Borisov Nail Abdullovich Sakhibullin Kazan(Volga Region)Federal University KazanRepublic of TatarstanRussia Special Astrophysical Observatory Russian Academy of ScienceNizhnii ArkhysKarachai-Cherkessian RepublicRussia

This paper presents the results of a model analysis of optical spectra and determination of the parameters of three individual SU UMa and WZ Sge type dwarf *** moderate resolution spectra of TY Psc,FL Psc and V455 And were obtained at the 6-m BTA of the SAO RAS in the low state of these systems with the determination of white dwarf *** theoretical spectra were calculated using the grid models of hydrogen dwarf atmospheres of white dwarfs by varying the parameters(T_(eff) and log g) to reach the best agreement with the observed *** highlight different effects of the parameters on the shape and intensity of the HI ***,it is possible to unambiguously determine T_(eff) and log g from the analysis of *** fundamental parameters of white dwarfs(M and R) were found by comparing the parameters of atmospheres with theoretical models of the internal *** obtained parameters of the primaries of TY Psc,FL Psc and V455 And are consistent with the average values for SU UMa and WZ Sge *** a result,we demonstrate the efficiency of the method for determining the parameters of such systems based on the analysis of a limited set of observed optical spectra.

关键词： techniques:spectroscopic stars:variables:dwarf novae stars:individual:TY Psc stars:individual:FL Psc stars:individual:V455 And

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Formation of spherical alloy microparticles in a porous salt medium

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Journal of Materials Science & Technology 2020年第8期36卷 189-196页

作者： Hayk HNersisyan Suk Cheol Kwon vladislav E.Ri Wan Bae Kim Woo Seok Choi Jong Hyeon Lee RASOM Chungnam National University99 Daehak-roYuseong-guDaejeon 34134Republic of Korea Graduate School of Materials Science and Engineering Chungnam National University99 Daehak-roYuseong-guDaejeon 34134Republic of Korea

This study describes the development of a one-pot strategy to produce spherical alloy microparticles for advanced near-net-shape manufacturing processes, including additive manufacturing and powder injection molding. The Al Si12 eutectic alloy(ca. 12 wt% Si) system was chosen as the model with which the main experiments were carried out. The proposed process synergistically integrates a few common,low-cost processing techniques including the mixing of Al micrometer size particles with silicon and sodium chloride, heat-treating the mixture at temperatures of 650–810°C, and the dissolution of salt in water to produce spherical Al Si12 alloy particles without the need to rely on costly melting and atomizing techniques. This new process can use laow-cost source Al and Si powders as the raw materials to produce10–200 um-sized spherical particles of Al Si12. The Ansys-CFX computational fluid dynamics software was used to analyze the flow behavior of Al Si12 liquid droplets and particle size refinement in the narrow voids of the sample.

关键词： AlSi(12)alloy Morphology evaluation Particle distribution Simulation Solid-liquid transition Spheroidization

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Inhibition of M2 tumor-associated macrophages polarization by modulating the Wnt/β-catenin pathway as a possible liver cancer therapy method

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World Journal of Gastroenterology 2024年第40期30卷 4399-4403页

作者： vladislav V Tsukanov Julia L Tonkikh Edward V Kasparov Alexander V Vasyutin Clinical Department of the Digestive System Pathology of Adults and Children Federal Research Center“Krasnoyarsk Science Center”of the Siberian Branch of the Russian Academy of SciencesScientific Research Institute of Medical Problems of the NorthKrasnoyarsk 660022Russia

The problem of liver cancer is becoming increasingly important due to the epi-demic of metabolic diseases and persistent high alcohol *** deter-mines great attention to the development and improvement of methods for early diagnosis and treatment of liver *** et al presented a study in the World Journal of Gastroenterology,in which they showed that the use of the traditional Chinese medicine Calculus bovis(CB)can suppress tumor growth in mice by inhibiting M2 tumor-associated macrophages(TAM)through modulating the activity of the Wnt/β-catenin *** interaction of CB components with the Wnt/β-catenin pathway,M2 TAM polarization,and tumor dynamics were studied using network pharmacology,transcriptomics,and molecular *** is now generally accepted that the polarization of TAM and the differentiation of the functions of M1 and M2 phagocytes are of great importance for the progression of *** is assumed that M2 TAM promote proliferation and migration of tumor *** to medicinally influence the Wnt/β-catenin pathway in order to modulate phagocyte polarization now belong to one of the most promising areas of immunotherapy of oncological ***,the work of the Chinese authors deserves attention and further development.

关键词： Liver cancer Treatment Calculus bovis Tumor-associated macrophages M2 tumor Macrophage polarization Wnt/β-catenin pathway

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Impact of renewable power market penetration on coal power generation capacity growth

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Journal of Coal Science & Engineering(China) 2011年第2期17卷 217-224页

作者： ABDUL Majeed Aziz R. Larry Grayson vladislav Kecojevic The Pennsylvania State University（University Park） 16802 USA West Virginia University Morgantown WV26506-6070 USA

Since renewable energy sources are growing in importance, how well they can penetrate the energy market for power generation will be a very important factor in the role the coal industry will play in the future. This paper examined the displacement of coal power plant capacity from 2010 to 2050 by renewables with respect to three drivers assumed under various conditions： the American Recovery and Reinvestment Act （ARRA）, Greenhouse Gas （GItG） policy, and varying plant capital cost cases. The results by 2050 illustrate that renewable market penetration captures anywhere from 1.9% to 6.4% of potential coal power generation capacity additions. Renewable power generation capacity additions is expected to outpace coal power plant additions by 89% with respect to ARRA in 2050, however with no GHG policy coal power generation capacity build-outs will outpace renewables by as high as 809%. Finally, coal power generation is still projected to be the largest single energy source contributor to the electricity market making up 28.0% of total available capacity, while renewables are expected to only make up 16.3% of total available capacity.

关键词： coal renewable energy power generation electricity policy

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A new species of Micryletta (Amphibia: Microhylidae) from southern Thailand

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Zoological Research 2020年第5期41卷 581-588页

作者： Chatmongkon Suwannapoom Tan Van Nguyen Parinya Pawangkhanant vladislav A.Gorin Siriwadee Chomdej Jing Che Nikolay A.Poyarkov Division of Fishery School of Agriculture and Natural ResourcesUniversity of PhayaoPhayao 56000Thailand Department of Species Conservation Save Vietnam's Wildlife CenterNinh BinhVietnam Faculty of Biology Department of Vertebrate ZoologyMoscow State UniversityMoscow 119234Russia Department of Biology Faculty of ScienceChiang Mai UniversityChiang Mai 50200Thailand Research Center in Bioresources for Agriculture Industry and MedicineChiang Mai UniversityChiang Mai 50200Thailand State Key Laboratory of Genetic Resources and Evolution Kunming Institute of ZoologyChinese Academy of SciencesKunmingYunnan 650223China Southeast Asia Biodiversity Research Institute Chinese Academy of SciencesYezin Nay Pyi Taw 05282Myanmar Laboratory of Tropical Ecology Joint Russian-Vietnamese Tropical Research and Technological CenterHanoiVietnam

DEAR EDITOR,We report on a new species,Micryletta dissimulans ***.,from the lowland forests of southern Thailand,which is described based on molecular and morphological *** new species is characterized by a combinatio... 详细信息

关键词： sp.nov. Amphibia new

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Modified Ceria-Zirconia Fluorite-Like Catalysts for the Combustion of Methane

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Journal of Natural Gas Chemistry 2006年第3期15卷 149-163页

作者： Tatiana Kuznetsova vladislav Sadykov Lubsan Batuev Ella Moroz Elena Burgina Vladimir Rogov Vladimir Kriventsov Dmitrii Kochubey Boreskov Institute of Catalysis SB RAS Pr. Lavrentieva5Novosibirsk630090Russia

For dispersed ceria-zirconia-based solid solutions prepared via the polymerized complex method and annealed at 700 ℃, effects of bulk doping by Ca, Mn, Co, Bi or Nb cations and surface modification by Mn and Pt on their structural features, surface/bulk oxygen reactivity and catalytic activity in methane combustion are considered. With up to 20 mol% doping, a structural type of homogeneous solid solutions of anion-deficient fluorite with disordered anion vacancies is formed. Doping by transition metal cations or Pt increases the mobility and reactivity of the surface/bulk oxygen. A broad variation in specific rates of methane combustion for the studied systems was observed, suggesting structural sensitivity of this reaction. In general, there is no universal relationship between the oxygen mobility, the reactivity and the catalytic activity in methane combustion, which is explained by the factor of specific methane activation on surface active sites. For the Pt-promoted samples, Pt efficiency in methane activation depends on the Pt-support interaction, and the most favorable ones being mixed Pt/MnOx and Pt/NbOx clusters on the surface of the supports that exhibit high lattice oxygen mobilities.

关键词： Ce-Zr-O Ca Mn Co Bi Nb structural features oxygen reactivity oxygen mobility methane combustion

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The bactericidal effect of continuous wave laser with strongly absorbing coating at the fiber tip

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Journal of Innovative Optical Health Sciences 2018年第5期11卷 51-58页

作者： Vadim Elagin Anton Smirnov Vladimir Yusupov Alexey Kirillov Nadezhda Ignatova Olga Streltsova Evgeniy Grebenkin vladislav Kamensky Institute of Biomedical Technologies Privolzhsky Research Medical University 10/1 Minina Square Nizhny Novgorod 603005Russia Laboratory of Laser Nanomodification of Materials Institute of Applied Physics Russian Academy of Sciences 46 Ulyanova Street Nizhny Novgorod 603950Russia Institute of Photon Technologies of Federal Scientific Research Centre"Crystallography and Photonics"of the Russian Academy of Sciences 2 Pionerskaya Street MoscowTroitsk 108840Russia Department of Innovative Program Institute of Applied Physics Russian Academy of Sciences 46 Ulyanova Street Nizhny Novgorod 603950Russia

The bactericidal effect of laser radiation with a quartz fiber-based transmission system with a strong absorption coating converter against bacteria associated with urological stones has been *** am-negative rod Escherichia coli and the Gram-positive coccus Staphylococcus epi-dermidis,Staphylococcus aureus,Enterococcus faecalis and Enterococcus faecium were used in this *** bacterial species was treated by continuous-wave near infrared laser coupled with bare fiber tip or strongly absorption coating fiber *** treatment,the temperature of bacterial suspension was *** addition,the temperature dist ribution was *** has been shown that using laser with a strongly absorption coating fiber tip results in significant bactericidal *** decrease of the amount of *** and *** was 100%after treatment with an output power of6 W of radiation at a wavelength of 0.97 pum for *** of *** and *** colony-forming unit was reduced to 70%after same *** peak temperature of bacterial suspension was 86℃ after treatment by laser with a strongly absorption coating fiber *** with a strongly absorpt ion coating fiber tip provides large scale hydrodynamic flows directed away from the fiber *** laser with a strongly absorption coating fiber tip has bactericidal *** main role is associated with the effect of high temperature,which,in the form of flow in a liquid medium,afects bacteria.

关键词： Laser strongly absorbing coating bacteria bacterididal efect laserinduced hydrodynamic

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