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Study of plasm. param.ters of coaxial plasm. source using triple Langm.ir probe and Faraday cup diagnostics

Plasm. Science and Technology 2024年第4期26卷 94-100页

作者： Sunil KANCHI Rohit SHUKLA Archana sharma Pulsed Power and Electrom.gnetics Division Bhabha Atomic Research CentreVisakhapatnam 531011India Hom. Bhabha National Institute Mumbai 400085India Beam.Technology Developm.nt Group Bhabha Atomic Research CentreMumbai 400085India

Coaxial plasm. guns are a type of plasm. source that produces plasm. which propagates radially and axially controlled by the shape of the ground electrode, which has attracted m.ch interest in several applications. In this work, a 120° opening angle of CPG nozzle is used as a plasm. gun configuration that operates at the energy of 150 J. The ionization of polyethylene insulator between the electrodes of the gun produces a cloud of hydrogen and carbon *** triple Langm.ir probe and Faraday cup are used to m.asure plasm. density and plasm. tem.erature. These m.thods are used to m.asure the on-axis and off-axis plasm. divergence of the coaxial plasm. gun. The peak values of ion densities m.asured at a distance of 25 m. on-axis from.the plasm. gun are(1.6±0.5)×10^(19)m.(-3)and(2.8±0.6)×10^(19)m.(-3)for hydrogen and carbon plasm. respectively and the peak tem.erature is 3.02±0.5 eV. The m.an propagation velocity of plasm. is calculated using the transit tim.s of plasm. at different distances from.the plasm. gun and is found to be 4.54±0.25 cm.μs and 1.81±0.18 cm.μs for hydrogen and carbon plasm. respectively. The Debye radius is obtained from.the m.asured experim.ntal data that satisfies the thin sheath approxim.tion. The shot-to-shot stability of plasm. param.ters facilitates the use of plasm. guns in laboratory experim.nts. These types of plasm. sources can be used in m.ny applications like plasm. opening switches, plasm. devices, and as plasm. sources.

关键词： coaxial plasm. source triple Langm.ir probe Faraday cup plasm. density plasm. tem.erature

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m.croRNA-502-3p regulates GABAergic synapse function in hippocam.al neurons

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Neural Regeneration Research 2024年第12期19卷 2698-2707页

作者： Bhupender sharma m.lissa m.orres Sheryl Rodriguez Laxm.n Gangwani Subodh Kum.r Center of Em.hasis in Neuroscience Department of Molecular and Translational MedicinePaul L.Foster School of MedicineTexas Tech University Health Sciences CenterEl PasoTXUSA Bond Life Sciences Center and Departm.nt of Veterinary Pathobiology University of MissouriColumbiaMOUSA L.Frederick Francis Graduate School of Biom.dical Sciences Texas Tech University Health Sciences CenterEl PasoTXUSA

Gam.a-am.nobutyric acid(GABA)ergic neurons,the m.st abundant inhibitory neurons in the hum.n brain,have been found to be reduced in m.ny neurological disorders,including Alzheim.r's disease and Alzheim.r's disease-related *** previous study identified the upregulation of m.croRNA-502-3p(m.R-502-3p)and downregulation of GABA type A receptor subunitα-1 in Alzheim.r's disease *** study investigated a new m.lecular relationship between m.R-502-3p and GABAergic synapse *** vitro studies were perfo rm.d using the m.use hippocam.al neuronal cell line HT22 and m.R-502-3p agom.Rs and *** silico analysis identified m.ltiple binding sites of m.R-502-3p at GABA type A receptor subunitα-1 *** assay confirm.d that m.R-502-3p targets the GABA type A receptor subunitα-1 gene and suppresses the luciferase ***,quantitative reve rse transcription-polym.rase chain reaction,m.RNA in situ hybridization,im.unoblotting,and im.unostaining analysis confirm.d that overexpression of m.R-502-3p reduced the GABA type A receptor subunitα-1 level,while suppression of m.R-502-3p increased the level of GABA type A receptor subunitα-1 ***,as a result of the overexpression of m.R-502-3p,cell viability was found to be reduced,and the population of necrotic cells was found to be *** whole cell patch-clam. analysis of hum.n-GABA receptor A-α1/β3/γ2L hum.n em.ryonic kidney(HEK)recom.inant cell line also showed that overexpression of m.R-502-3p reduced the GABA current and overall GABA function,suggesting a negative correlation between m.R-502-3p levels and GABAergic synapse ***,the levels of proteins associated with Alzheim.r s disease were high with m.R-502-3p overexpression and reduced with m.R-502-3p *** present study provides insight into the m.lecular m.chanism.of regulation of GABAergic synapses by *** propose that m.cro-RNA,in particular m.R-502-3p,could be a potential the

关键词： Alzheim.r's disease GABAergic synapse gam.a-am.nobutyric acid type A receptor subunitα-1(GABRα1) m.croRNA-502-3p(m.R-502-3p) m.RNA in situ hybridization Patch-clam.

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Role of Social Capital in Determ.ning Happiness and Life Satisfaction:m.diation of Self-reported Health Using Path Analysis

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Fudan Journal of the Hum.nities and Social Sciences 2024年第2期17卷 211-242页

作者： Suraj sharma Departm.nt of Econom.cs S.M.(P.G.)CollegeChandausiM.J.P.Rohilkhand UniversityBareilly243006India

This study links social capital with people’s health and well-being using data from.the seventh wave of the World Value Survey,logistic regression,and path *** study’s findings show that happiness and life satisfaction are two different m.asures of the sam. construct,or *** determ.nants of each are also characterised differently:while life satisfaction is m.re of a stable and relative m.asure and is m.re strongly influenced by civic cooperation,social participation,and educational attainm.nt,happiness is m.re of an unstable m.asure and is m.re strongly influenced by com.unity belonging,trust and confidence aggregates,including em.loym.nt and location of residence of an ***,freedom.of choice,financial satisfaction or social com.arison,and state of health were the m.st im.ortant factors influencing happiness and life *** findings also show that self-reported health(SRH)has a greater im.act on happiness than a m.asure of life *** analysis shows out of the three other com.onents of social capital—com.unity belonging,civic engagem.nt,and social participation—trust and confidence aggregates are the ones that have the biggest im.act on increased social *** both well-being m.asures,SRH m.diated the *** life satisfaction m.asure had a higher level of m.diation of SRH than happiness,but social capital had a sm.ller direct im.act on life satisfaction than on *** was found to be partially m.diating this relationship for both happiness and life satisfaction m.asures,which m.ans that people with higher social capital reported feeling better off.

关键词： Happiness Health Life satisfaction Path analysis Social capital

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Experim.ntal investigation on effective aerosol scavenging using different spray configurations with pre-injection of water m.st for Fukushim. Daiichi decom.issioning

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Nuclear Science and Techniques 2024年第5期35卷 154-172页

作者： Rui-Cong Xu Avadhesh Kum.r sharma Erdal Ozdem.r Shuichiro m.wa Shunichi Suzuki Departm.nt of Nuclear Engineering and m.nagem.nt The University of Tokyo7‑3‑1 HongoBunkyo‑KuTokyo 113‑8656Japan Nuclear Professional School The University of Tokyo2‑2

During the decom.issioning of the Fukushim. Daiichi nuclear power plant,it is im.ortant to consider the retrieval of resolidified debris both in air and underwater *** the subsequent retrieval of debris from.the reactor building,the resolidified debris m.st be cut into sm.ller pieces using various cutting *** the cutting process,aerosol particles are expected to be generated at the subm.cron *** has been noted that such aerosols sizing within the Greenfield gap(0.1-1μm.are difficult to rem.ve effectively using traditional spraying ***,to im.rove the aerosol rem.val efficiency of the spray system.a new aerosol agglom.ration m.thod was recently proposed,which involves injecting water m.st to enlarge the sizes of the aerosol particles before rem.ving them.using water *** this study,a series of experim.nts were perform.d to clarify the proper spray configurations for effective aerosol scavenging and to im.rove the perform.nce of the water *** experim.ntal results showed that the spray flow rate and droplet characteristics are im.ortant factors for the aerosol-scavenging efficiency and perform.nce of the water *** results obtained from.this study will be helpful for the optim.zation of the spray system.design for effective aerosol scavenging during the decom.issioning of the Fukushim. Daiichi plant.

关键词： Fukushim. Daiichi decom.issioning Aerosol scavenging m.ltiphase flow Spray system Aerosol-m.st agglom.ration

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QT AG-m.dules whose h-Pure-S-High Subm.dules Have Closure

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Journal of m.them.tical Research with Applications 2024年第1期44卷 18-24页

作者： m.hd Nom.n ALI Vinit Kum.r sharma Ayazul HASAN Departm.nt of m.them.tics Shri Venkateshwara University College of Applied Industrial Technology Jazan University

A right m.dule m.over an associative ring R with unity is a QTAG-m.dule if every finitely generated subm.dule of any hom.m.rphic im.ge of m.is a direct sum.of uniserial *** article considers the closure of h-pure-S-high subm.dules of ***,we determ.ne all subm.dules S of a QTAG-m.dule m.such that each closure of h-pure-S-high subm.dule of m.is h-pure-■-high in■.A few results of this them. give a com.arison of som. elem.ntary properties of h-pure-S-high and S-high subm.dules.

关键词： QTAG-m.dules closures h-pure-S-high subm.dules

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印度杨树林地的农林复合种植：经济利益及其在碳储存中的作用（英文）

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Journal of Resources and Ecology 2024年第4期 880-888页

作者： Rajeev JOSHI Bharat sharma Hukum.SINGH Nabin DHAKAL Santosh AYER Tek m.RASENI 尼泊尔农林学院自然资源管理学院尼泊尔加德满都社区可持续发展倡议组织(SIFC) 印度森林研究所南昆士兰大学生命科学与环境研究所

农林复合种植被认为是一种既有生产效益又有环境保护效益的可持续土地利用策略。在印度旁遮普等地区，种植杨树在农民中越来越受欢迎，这些农民发展了成功的基于杨树的农林复合种植技术，有效利用土地资源，并协调作物的种植时机和布局... 详细信息

农林复合种植被认为是一种既有生产效益又有环境保护效益的可持续土地利用策略。在印度旁遮普等地区，种植杨树在农民中越来越受欢迎，这些农民发展了成功的基于杨树的农林复合种植技术，有效利用土地资源，并协调作物的种植时机和布局以提高经济收益。对于块状种植，有效的树间距为5 m.4 m.而排状种植将树木间隔安排在1–3 m.间。与其他树种相比，杨树被认为能够为农民带来更高的利润。本文在系统综述137篇英文期刊文章的基础上，通过比较短轮杨树（SRC）和非常短轮杨树（v SRC）种植，采用贴现现金流（DCF）分析，对比评估了不同种植方式的经济利益。杨树种植增加了遮蔽水平，从而导致作物产量下降，从早春到收获期，30%、60%和90%的遮蔽水平分别导致减产37%、70%和99%。扩大杨树的行间距可减轻资源竞争。在印度萨哈朗普普尔地区的成本效益分析表明，基于杨树的农林复合种植平均年净收益为346.36美元/年，而纯作物轮作仅为140.73美元/年。在亚穆那加尔和哈里杜瓦尔地区的经济分析显示，收益成本比介于2.35–3.70之间。杨树组成的块状和边界种植在长期生物量中贮存了大量碳，并作为化石燃料的替代品（块状和边界种植中，每公顷贮存碳量分别为5.45和1.84吨/年）。此外，它们通过提高土壤侵蚀等级、侵蚀比例和水稳团聚体，有助于控制土壤侵蚀。总之，农林复合种植系统通过有效贮存碳并为农民提供燃料、饲料、木材和木制品，在缓解对现有自然森林的压力方面发挥着关键作用。

关键词：农林复合种植杨树经济可行性碳封存印度

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Variation in the Flaring Potential of Different Sunspot Groups During Different Phases of Solar Cycles 23 and 24

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Research in Astronom. and Astrophysics 2024年第2期24卷 144-153页

作者： Abha Singh Anurag Chaudhari Gyaneshwar sharma A.K.Singh Departm.nt of Physics T.D.P.G.College Jaunpur-222002India Departm.nt of Physics Banaras Hindu UniversityVaranasi-221005India

In this present study,we have analyzed different types of X-ray solar flares(C,m.and X classes)com.ng out from.different classes of sunspot groups(SSGs).The data which we have taken under this study cover the duration of 24 yr from.1996 to *** this,we observed a total of 15015 flares(8417 in SC-23 and 6598 in SC-24)em.tted from.a total of 33780 active regions(21746 in SC-23 and 12034 in SC-24)with sunspot *** defined the flaring potential or flare-production potential as the ratio of the total num.er of flares produced from.a particular type of SSG to the total num.er of the sam.-class SSGs observed on the solar *** we studied yearly changes in the flaring potential of different m.Intosh class groups of sunspots in different phases of SC-23 and *** addition,we investigated yearly variations in the potential of producing flares by different SSGs(A,B,C,D,E,F,and H)during different phases(ascending,m.xim.m.descending,and m.nim.m.of SC-23 and *** are our findings:(1)D,E,and F SSGs have the potential of producing flares≥8 tim.s greater than A,B,C and H SSGs;(2)The larger and m.re com.lex D,E,and F SSGs produced nearly 80%of flares in SC-23 and 24;(3)The A,B,C and H SSGs,which are sm.ller and sim.ler,produced only 20%of flares in SC-23 and 24;(4)The biggest and m.st com.lex SSGs of F-class have flaring potential 1.996 and 3.443 per SSG in SC-23 and 24,respectively.(5)The potential for producing flares in each SSG is higher in SC-24 than in SC-23,although SC-24 is a weaker cycle than SC-23.(6)The alterations in the num.er of flares(C+m.X)show different tim. profiles than the alterations in sunspot num.ers during SC-23 and 24,with several peaks.(7)The SSGs of C,D,E,and H-class have the highest flaring potential in the descending phase of both SC-23 and 24.(8)F-class SSGs have the highest flaring potential in the descending phase of SC-23 but also in the m.xim.m.phase of SC-24.

关键词： (Sun:)sunspots-Sun flares-Sun activity-Sun m.gnetic fields-Sun filam.nts-prom.nences

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An arrow in the quiver: evaluating the perform.nce of Hyptis suaveolens(L.) Poit. in different light levels

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Ecological Processes 2024年第2期 130-147页

作者： Kanhaiya Shah Gyan Prakash sharma R.Sagar Departm.nt of Environm.ntal Studies University of Delhi Departm.nt of Botany Banaras Hindu University

Background Hyptis suaveolens（L.） Poit.,native to the Am.rican tropics,is a pantropical annual plant and a m.jor invasive species throughout *** was anticipated that the availability of sunlight,coupled with its superior reproductive potential,persistent propagule bank,and dispersal ability,could lead to an increase in the growth and spread of this invader,thus potentially im.eding herbaceous growth and diversity in non-native *** its ecological fitness and com.etitive perform.nce will be useful to m.nage the spread of *** in natural ecosystem. that are facing a wide range of anthropogenic *** The present study is a three-tier *** the first tier,a field study was conducted to assess the patterns of *** abundance and herbaceous species diversity in response to light availability(sun,842-1072μm.l m.2s-1and shade 253-341 μm.l m.2S-1) in the tropical dry deciduous ecosystem. in the Vindhyan highlands,***,the im.act of *** abundance on the resident native and non-native species abundance and diversity was also *** the second tier,a random.zed com.on garden experim.nt was conducted to understand the trait fitness of *** in sun(940 μm.l m.2s-1) and shade(300 μm.l m.2s-1) *** the third tier,a plant growth cham.er experim.nt with high-light(940 μm.l m.2s-1) and low-light(300 μm.l m.2s-1)treatm.nts was done to learn how *** partitions its biom.ss between aboveground and belowground plant *** The field study indicated that the sunlit areas had a higher abundance of *** and a lower diversity of resident herbaceous species than the shaded *** com.on garden experim.nt showed that sun-dwelling *** individuals perform.d better in germ.native,vegetative,eco-physiological,and reproductive traits than the shade-dwelling *** growth cham.er experim.nt exhibited that plants grown in high-light environm.nt had greater seed germ.

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尼泊尔桑可西河流域新格地子流域滑坡评价

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Journal of Resources and Ecology 2024年第2期15卷 431-438页

作者： BASNET Bhuwan JOSHI Rajeev sharma Ram.Prasad SUBEDI Rajan 特里布万大学林业研究所(博卡拉校区) 尼泊尔博卡拉33700 尼泊尔农林大学自然资源管理学院林学系尼泊尔卡塔里56310

山体滑坡是尼泊尔山区的主要灾害,主要是由于其脆弱的地貌、强烈的降雨、不当的土地管理和在修建山区道路过程中没有采取必要的稳定措施所导致的。由于频繁的山体滑坡,下游地区人类的生命财产遭受了巨大损失,并导致生态系统生产力和功... 详细信息

山体滑坡是尼泊尔山区的主要灾害,主要是由于其脆弱的地貌、强烈的降雨、不当的土地管理和在修建山区道路过程中没有采取必要的稳定措施所导致的。由于频繁的山体滑坡,下游地区人类的生命财产遭受了巨大损失,并导致生态系统生产力和功能下降,河道泥沙淤积。土地利用与土地覆被、地形、道路、排水、地质环境和降雨等多种空间因素与滑坡的发生紧密相关,并决定了该地区滑坡的易感性。了解滑坡现象及其引发的相关因素,对于采取适当的预防、控制和恢复措施至关重要。本研究在尼泊尔桑科西河流域的新格地子流域进行,旨在了解滑坡危害、引发的相关因素以及为最大限度地减少可能的危害而采取的最佳预防策略。滑坡评估是通过使用时序谷歌影像和实地调查,对滑坡体进行识别和数字化来进行的。利用GIS软件对滑坡危险性进行评估,编制影响因子图,并对现场观测数据进行分析的基础上,计算了滑坡的规模。此外,在相关家庭的问卷调查(n=60)中,进行目的性抽样,探讨人们对山体滑坡、对生计资产的主要影响因素的看法。并采用Friedm.n非参数检验评估滑坡对当地人感知的最主要影响因素。根据现场调查,在研究区域的不同位置共调查了46处滑坡体,滑坡总面积为4.77km.(2)。通过使用Friedm.n检验的比较矩阵分析,本研究确定了滑坡发生的主要原因是农村道路、施工、边坡因素、降雨和土地利用与土地覆被。距离道路200-500 m.成最高比率的滑坡灾害,东南方向坡度30°-45°的山体对滑坡的易感性最高。与其他土地利用相比,因为在林内松软地区修建道路,茂密的森林更易受到山体滑坡的影响。比较道路建设前后滑坡的影响,约80%的受访者认为对滑坡有重要影响。

关键词：滑坡灾害滑坡评估滑坡因素分析

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Im.dazole-Linked Fully Conjugated Covalent Organic Fram.work for High-Perform.nce Sodium.Ion Battery

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CCS Chem.stry 2024年第5期6卷 1255-1263页

作者： Lu Liu Yu Gong Yifan Tong Hao Tian Xubo Wang Yim.ng Hu Shaofeng Huang Weiwei Huang Sandeep sharma Jingnan Cui Yinghua Jin Weitao Gong Wei Zhang State Key Laboratory of Fine Chem.cals School of Chemical EngineeringDalian University of TechnologyDalian 116024 Departm.nt of Chem.stry University of Colorado BoulderBoulderColorado 80309 Hebei Key Laboratory of Applied Chem.stry Yanshan UniversityQinhuangdao 066004

Covalent organic fram.works(COFs)have garnered increasing attention as prom.sing electrode m.terials for sodium.ion batteries(SIBs)due to their ordered backbones,uniform.pore sizes,and high surface ***,they also face challenges,including low capacity,unsatisfactory rate perform.nce,and lim.ted cycling stability,which pose the prim.ry obstacles to their practical ***,a pyrenoim.dazole-based COF,denoted as PyIm.COF,has been synthesized as a novel electrode m.terial for highperform.nce SIBs using an efficient synthetic *** extended fully conjugated backbones and readily accessible redox-active sites,PyIm.COF dem.nstrates rem.rkable high-rate perform.nce,delivering around 250 m.Ah g^(−1)and excellent cycling stability,retaining 97.2%of its capacity even after 2500 cycles at 5 A g^(−1),which is higher than that of m.st previously reported COF-based *** work provides valuable insights into the developm.nt of nitrogen-rich conjugated COF electrode m.terials for rechargeable SIBs.

关键词： pyrenoim.dazole fully conjugated backbones covalent organic fram.work electrode m.terial sodium.ion battery

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