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Plasma treatment for enhancement of the sorption capacity of carbon fabric

Plasma Science and Technology 2021年第12期23卷 150-160页

作者： IIya ZADIRIEv Elena KRALKINA vladimir SAMOILOv victoria ELCHANINOvA valentina GORINA Ilya IvANENKO konstantin vAvILIN Alexander NIKONOv Physical Electronics Department Faculty of PhysicsLomonosov Moscow State University119991 MoscowRussia Research Institute for Graphite-Based Structural Materials‘Nllgrafit’ 1524 MoscowRussia

In this work we carried out an experimental investigation into enhancement of the sorption capacity of carbon fabric using plasma treatment *** fabric is based on viscose fiber and is hydrophobic by *** of the fabric sorption capacity is required for its application in *** this purpose,two plasma treatment methods were considered,*** nonequilibrium radiofrequency(RF)discharge and a vacuum RF plasma source with an external magnetic *** treated by atmospheric discharge demonstrated aging effects during the first week after *** sorption capacity of samples treated by the RF plasma source was stable over the same period and reached values as high as *** of the beam created by the vacuum RF plasma source were analyzed and dependences of the fabric sorption capacity and specific surface area on plasma treatment time were *** found that sorption capacity reached its maximum value after 30 min of treatment and did not change significantly if processing was continued,while the specific surface area reached its maximum after 3 min of treatment and quickly decreased after *** was found that the micropore structure of the fabric remained almost the same during plasma *** volume of mesopores in a unit of the fabric mass(specific volume)doubled during the first 5 min of treatment and returned to initial values after 30 min of *** sorption capacity continued to increase even when the specific surface area decreased after reaching its peak *** indicates the important role of surface functional groups formed on carbon fibers during plasma *** is consistent with the results of x-ray photoelectron spectroscopy analysis showing changes in surface oxidation during plasma treatment.

关键词： carbon fabric sorption plasma treatment radiofrequency

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Doped GaSe crystals for laser frequency conversion

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Light(Science & Applications) 2015年第1期4卷 47-58页

作者： Jin Guo Ji-Jiang Xie Dian-Jun Li Gui-Long Yang Fei Chen Chun-Rui Wang Lai-Ming Zhang Yury M Andreev konstantin A Kokh Gregory v Lanskii valery A Svetlichnyi State Key Laboratory of Laser Interaction with Matter Changchun Institute of OpticsFine Mechanics and PhysicsCASChangchun 130033China Innovation Laboratory of Electro-Optical Countermeasures Technology Changchun Institute of OpticsFine Mechanics and PhysicsCASChangchun 130033China Laboratory of GeosphereBiosphere Interactions Institute of Monitoring of Climatic and Ecological SystemsSB RASTomsk 634055Russia Laboratory of Advanced Materials and Technologies Siberian Physical-Technical Institute of Tomsk State UniversityTomsk 634050Russia Crystal Growth Laboratory Institute of Geology and MineralogySB RASNovosibirsk 630090Russia Novosibirsk State University Novosibirsk 630090Russia

In this review,we introduce the current state of the art of the growth technology of pure,lightly doped,and heavily doped(solid solution)nonlinear gallium selenide(GaSe)crystals that are able to generate broadband emission from the near infrared(IR)(0.8 mm)through the mid-and far-IR(terahertz(THz))ranges and further into the millimeter wave(5.64 mm)*** the first time,we show that appropriate doping is an efficient method controlling a range of the physical properties of GaSe crystals that are responsible for frequency conversion efficiency and exploitation *** appropriate doping,uniform crystals grown by a modified technology with heat field rotation possess up to 3 times lower absorption coefficient in the main transparency window and THz ***,doping provides the following benefits:raises by up to 5 times the optical damage threshold;almost eliminates two-photon absorption;allows for dispersion control in the THz range independent of the mid-IR dispersion;and enables crystal processing in arbitrary directions due to the strengthened ***,doped GaSe demonstrated better usefulness for processing compared with GaSe grown by the conventional technology and up to 15 times higher frequency conversion efficiency.

关键词： frequency conversion GaSe solid solution crystal THz

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Study of high-speed interaction processes between fluoropolymer projectiles and aluminum-based targets

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Defence Technology（防务技术） 2015年第1期11卷 56-64页

作者： Evgeny A.KHMELNIKOv Alexey v.STYROv konstantin v.SMAGIN Natalia S.KRAvCHENKO valery L.RUDENKO vladimir I.FALALEEv Sergey S.SOKOLOv Artem v.SvIDINSKY Natalia F.SvIDINSKAYA Nizhny Tagil Technological Institute (Branch) of Ural Federal University Russian Federation Federal State Enterprise "Nizhny Tagil Institute of Metal Testing" Russian Federation All-Russian Scientific Research Institute of Experimental Physics Sarov Russian Federation

The experimental results and numerical modeling of penetration process of fluoropolymer projectiles in aluminum-based targets are presented. Analysis of mathematical models for interaction of elastoplastic projectile and target without taking additional energy released during interaction of fluoropolymer and aluminum into consideration is carried out. Energy fraction which is spent effectively on the increase in cavity volume is determined. The experimental and calculated results of penetration by combined and inert projectiles are compared.

关键词： Reactive materials Fluoropolymer High speed strain Interaction Aluminum Titanium alloy Numerical modeling

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Application of quantum-statistical methods to studies of thermodynamic and radiative processes in hot dense plasmas

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Matter and Radiation at Extremes 2019年第5期4卷 17-27页

作者： Nikolay Yu.Orlov Maxim A.Kadatskiy Oleg B.Denisov konstantin v.Khishchenko Joint Institute for High Temperatures of the Russian Academy of Sciences Izhorskaya 13 Bldg 2Moscow 125412Russia Moscow Institute of Physics and Technology Institutskiy Pereulok 9DolgoprudnyMoscow Region 141701Russia

Calculations of thermodynamic and radiative characteristics of hot dense plasmas within different quantum-statistical approaches,such as the use of the Hartree–Fock–Slater model and the ion model,are *** equations of state of different substances are used to investigate findings from absolute and relative measurements of the compressibility of solid aluminum samples in strong shock *** is shown that our calculated Hugoniot adiabat of aluminum is in a good agreement with experimental data and other theoretical results from first *** present a review of the most important applications of the quantum-statistical approach to the study of radiative properties of hot dense *** includes the optimization problem of hohlraum wall materials for laser inertial fusion,calculations of the radiative efficiency of complex materials for optically thin plasma in X-pinch,modeling of radiative and gas-dynamic processes in plasma for experiments,where both intense laser and heavy ion beams are used,and temperature diagnostics for X-and Z-pinch plasmas.

关键词： radiative quantum thermodynamic

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溶液中蛋白质的气液荷电萃取电离质谱研究

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分析化学 2017年第12期45卷 1937-1943页

作者：寇伟张华 konstantin Chingin 陈焕文吉林大学无机合成与制备化学国家重点实验室东华理工大学江西省质谱科学与仪器重点实验室

利用自主研制的气液荷电萃取电离装置实现了溶液中蛋白组分的荷电萃取电离直接质谱分析。系统考察了所用气体种类、气泡路径长度、溶液电压、气压等条件对溶液中溶菌酶等蛋白荷电萃取电离的影响,以期得到最佳蛋白质信号。在以CO;为萃取... 详细信息

利用自主研制的气液荷电萃取电离装置实现了溶液中蛋白组分的荷电萃取电离直接质谱分析。系统考察了所用气体种类、气泡路径长度、溶液电压、气压等条件对溶液中溶菌酶等蛋白荷电萃取电离的影响,以期得到最佳蛋白质信号。在以CO;为萃取气体、气泡路径长度32 cm、溶液电压+2 k v、气压0.05 MPa条件下,溶菌酶在水、纯水稀释200倍尿液、未稀释尿液中的浓度分别为1×10;mol/L、1×10;mol/L、1×10;mol/L时获得谱图信噪比（S/N≥3）类似,信号强度不受样品管内径大小影响,所用尿液最小体积为6 m L,但对珍稀样品可进一步减少用量。与ESI-MS相比,本方法获得更多低价态蛋白质离子,对溶液中的小分子基体、无机盐具有更强的耐受性,且辣根过氧化物酶经气液苛电萃取电离能保留53.9%活度。本方法具有无需复杂样品预处理、无化学试剂污染的特点,有望为分析复杂基质中蛋白质提供一种新方法。

关键词：蛋白样品气泡荷电萃取电离质谱分析

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MKT-077 normalizes mitochondrial function and mitigates cardiac pathology in mdx mice

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BIOCELL 2024年第12期48卷 1815-1825页

作者： MIKHAIL v.DUBININ IRINA B.MIKHEEvA ANASTASIA E.STEPANOvA NATALIA v.MIKINA DANIIL v.SUSHENTSOv vYACHESLAv A.SHARAPOv ALENA A.CHEREPANOvA vALENTIN v.LOSKUTOv konstantin N.BELOSLUDTSEv Department of Biochemistry Cell Biologyand MicrobiologyMari State UniversityYoshkar-Ola424001Russia Laboratory of Mitochondrial Transport Institute of Theoretical and Experimental BiophysicsRussian Academy of SciencesPushchino142290Russia

Objectives:Duchenne muscular dystrophy(DMD)is characterized by the development of cardiac pathology secondarily expressed in mitochondrial *** treatment includes support for mitochondrial *** purpose of this work was to evaluate the effects of the lipophilic cation MKT-077,capable of modulating mitochondrial activity,on the structure and function of cardiac mitochondria in mdx and wild-type mice,as well as the state of this ***:Animals were divided into 4 groups:wild type(WT),WT+5 mg/kg MKT-077,mdx,mdx+5 mg/kg ***-077 was administered intraperitoneally daily for 28 ***,we assessed the parameters of the functioning of the cardiac mitochondria of mice,the expression of genes encoding proteins involved in mitochondrial communication,as well as the histology and ultrastructure of the myocardium and heart ***:MKT-077 was shown to reverse mitochondrial hyperfunctionalization in mdx mice,reducing respiratory parameters to WT ***-077 also inhibited mitochondrial respiration in the hearts of WT ***-077 administration was accompanied by a tendency to normalize calcium retention capacity in the cardiac mitochondria of mdx *** ultrastructure and gene signature of mdx+MKT077 animals demonstrated increased *** noted changes in the sarcoplasmic reticulum(SR)/mitochondria contacts,accompanied by differential changes in the level of genes encoding proteins involved in the communication of these *** effect of MKT-077 was accompanied by normalization of the relative heart weight of mdx mice,a decrease in the level of fibrosis,and a tendency toward normalization of heart ***:MKT-077-induced reversal of cardiac mitochondrial hyperfunctionalization in mdx mice may promote a healthy-like state of the myocardium in these animals.

关键词： Duchenne muscular dystrophy mdx mice Cardiac mitochondria MKT-077

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World Journal of Gastroenterology 2010年第40期16卷 5024-5034页

作者： konstantin Umanskiy Alessandro Fichera Department of Surgery University of Chicago Medical Center

Over the past 30 years, health related quality of life (HRQOL) has developed into a scientific index of subjective health status. Measurement of HRQOL is now clearly a mandatory component in evaluating interventions and management of medical and surgical diseases. In designing comprehensive and meaningful clinical studies particular attention ought to be made of measures of HRQOL. This is clearly very important in inflammatory bowel disease. Both ulcerative colitis (UC) and Crohn’s disease (CD) have a major impact on HRQOL. The chronic and unrelenting nature of these diseases, the often early age of onset, and the impact on social and sexual aspects of life significantly change patient’s perception, body image and quality of life. This manuscript is an overview of the available published data on HRQOL in UC and CD patients focusing on the impact of surgical therapy. While these two diseases may have some similarities in their management, clearly their impact on quality of life and the effects of are significantly different. Hence we are presenting the data separately.

关键词： Inflammatory bowel disease Quality of life Gastrointestinal surgery Surgical outcome

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World Journal of Gastroenterology 2020年第22期26卷 2931-2947页

作者： Tea L Laursen Thomas D Sandahl konstantin Kazankov Jacob George Henning Gronbæk Department of Hepatology and Gastroenterology Aarhus University HospitalAarhus N DK-8200Denmark Storr Liver Centre Westmead Institute for Medical ResearchWestmead HospitalSydney NSW 2145Australia University of Sydney Sydney NSW 2145Australia

More than five years ago,the treatment of hepatitis C virus infection was revolutionized with the introduction of all-oral direct-acting antiviral(DAA)*** proved highly efficient in curing patients with chronic hepatitis C(CHC),including patients with *** new DAA treatments were alleged to induce significant improvements in clinical outcome and prognosis,but the exact cause of the expected benefit was ***,little was known about how the underlying liver disease would be affected during and after viral *** this review,we describe and discuss the liver-related effects of the new treatments in regards to both pathophysiological aspects,such as macrophage activation,and the time-dependent effects of therapy,with specific emphasis on inflammation,structural liver changes,and liver function,as these factors are all related to morbidity and mortality in CHC *** seems clear that antiviral therapy,especially the achievement of a sustained virologic response has several beneficial effects on liver-related parameters in CHC patients with advanced liver fibrosis or *** seems to be a timedependent effect of DAA therapy with viral clearance and the resolution of liver inflammation followed by more discrete changes in structural liver *** improvements lead to favorable effects on liver function,followed by an improvement in cognitive dysfunction and portal ***,the data provide knowledge on the several beneficial effects of DAA therapy on liverrelated parameters in CHC patients suggesting short-and long-term improvements in the underlying disease with the promise of an improved longterm prognosis.

关键词： Chronic hepatitis C Antiviral treatment Inflammation Liver fibrosis Liver cirrhosis Metabolic liver function Galactose elimination capacity Urea synthesis capacity Portal hypertension Hepatic encephalopathy

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Exploring van der Waals materials with high anisotropy:geometrical and optical approaches

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Light(Science & Applications) 2024年第4期13卷 645-653页

作者： Aleksandr S.Slavich Georgy A.Ermolaev Mikhail K.Tatmyshevskiy Adilet N.Toksumakov Olga G.Matveeva Dmitriy v.Grudinin Kirill v.voronin Arslan Mazitov konstantin v.Kravtsov Alexander v.Syuy Dmitry M.Tsymbarenko Mikhail S.Mironov Sergey M.Novikov Ivan Kruglov Davit A.Ghazaryan Andrey A.vyshnevyy Aleksey v.Arsenin valentyn S.volkov Kostya S.Novoselov Moscow Center for Advanced Studies Kulakova str.20Moscow 123592Russia. Emerging Technologies Research Center XPANCEOInternet CityEmmay TowerDubaiUnited Arab Emirates. Donostia International Physics Center(DIPC) Donostia/San-Sebastián 20018Spain. Institute of Materials Ecole Polytechnique Federale de Lausanne1015 LausanneSwitzerland. Department of Chemistry Lomonosov Moscow State UniversityMoscow 119991Russia. Laboratory of Advanced Functional Materials Yerevan State UniversityYerevan 0025Armenia. National Graphene Institute(NGI) University of ManchesterManchester M139PLUK. Department of Materials Science and Engineering National University of SingaporeSingapore 03-09 EASingapore. Institute for Functional Intelligent Materials National University of Singapore117544 SingaporeSingapore

The emergence of van der Waals(vdW)materials resulted in the discovery of their high optical,mechanical,and electronic anisotropic properties,immediately enabling countless novel phenomena and *** success inspired an intensive search for the highest possible anisotropic properties among vdW ***,the identification of the most promising among the huge family of vdW materials is a challenging quest requiring innovative ***,we suggest an easy-to-use method for such a survey based on the crystallographic geometrical perspective of vdW materials followed by their optical *** our approach,we found As2S3 as a highly anisotropic vdW *** demonstrates high in-plane optical anisotropy that is~20%larger than for rutile and over two times as large as calcite,high refractive index,and transparency in the visible range,overcoming the century-long record set by *** these benefits,As2S3 opens a pathway towards nextgeneration nanophotonics as demonstrated by an ultrathin true zero-order quarter-wave plate that combines classical and the Fabry–Pérot optical phase ***,our approach provides an effective and easy-to-use method to find vdW materials with the utmost anisotropic properties.

关键词： anisotropy anisotropic high

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Biochar-induced changes in metal mobility and uptake by perennial plants in a ferralsol of Brazil’s Atlantic forest

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Biochar 2019年第3期1卷 309-324页

作者： konstantin von Gunten Magdalena Hubmann Robert Ineichen Yunhai Gao Konhauser OKurt Daniel SAlessi University of Alberta Earth and Atmospheric Sciences1-26 Earth Sciences BuildingEdmontonAB T6G 2E3Canada University of Alberta AgriculturalFood and Nutritional Science410 Agriculture/Forestry CentreEdmontonAB T6G 2P5Canada AgraDEço Rua do MundoParatyRJ 23970-000Brazil

Despite an abundance of short-term studies focusing on biochar’s effects on annual plants,the long-term effects of biochar on perennial plants and the effects of the biochar on the mobility and speciation changes of metals/metalloids not limited to main plant nutrients in soils are poorly *** study reports on the amelioration a sloped orthic ferralsol by biochar from Tibouchina wood and the resulting effects on perennial crops and microbiota,including a comprehensive analysis of metals/metalloids speciation *** were amended with biochar and urine-amended biochar(2 kg/m^(2))and were planted with papaya,banana,and *** and plant materials were analyzed using acid digestions,sequential extractions,and 16S rRNA gene *** applications led to decreased soil acidity,shifted the cation exchange capacity from being Al-influenced to being Mg/K/Ca-dominated,and elevated the concentrations of Mg,K,Ca,Zn,and Ba in *** exchangeable/acid-soluble fraction of Ca,P,and S notably *** soil microbial biome became more species rich and diverse in the biochar-amended *** benefited from biochar applications,demonstrating increased growth,which resulted in generally decreased concentrations of trace elements in most plant parts,however,with an increased total elemental *** amendment contributed to higher concentrations of P,S,and K in soils,but did not further increase plant *** was shown to be a promising soil amendment for agricultural use of orthic ferralsols of the Brazil’s Atlantic forest region,but the accumulation of potentially harmful metals needs to be considered.

关键词： Biochar in agriculture Agroforestry Ferralsol management Trace-metal speciation Biogeochemistry Plant metal uptake

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