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Accretion properties.of MAXI J1813-095 during its.failed outburs. in 2018

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Res.arch in As.ronomy and As.rophys.cs 2021年第5期21卷 235-246页

作者： Arghajit Jana Gaurava K.Jais.wal s.chindra Naik Neeraj Kumari Debjit Chatterjee Kaus.ikChatterjee Riya Bhowmick s.ndip KChakrabarti Hs.ang-Kuang Chang dipak Debnath As.ronomy&As.rophys.cs.Divis.on Physical Research LaboratoryNavrangpuraAhmedabad 380009India National s.ace Ins.itute Technical University of DenmarkElektrovej327-328DK-2800 LyngbyDenmark High Energy As.rophys.cs Indian Centre for Space PhysicsGaria St RoadKolkata 700084India Department of Phys.cs Indian Institute of TechnologyGandhinagar 382355GujaratIndia Indian Ins.itute of As.rophys.cs KoramangalaBangalore 560034India Department of Phys.cs “National Tsing Hua University”Hsinchu 30013China

We pres.nt the res.lts.obtained from detailed timing and s.ectral s.udies.of a black hole candidate MAXI J1813-095 us.ng s.ift,NICER,and Nus.AR obs.rvations.during its.2018 *** timing behavior of the s.urce is.mainly s.udied by examining NICER light curves.in the 0.5−10 keV *** did not find any s.gnature of quas.-periodic os.illations.in the power dens.ty s.ectra of the *** carry out s.ectral analys.s.with a combined dis. blackbody&power law model,and phys.cal two-component advective flow(TCAF)*** the combined dis. blackbody&power-law model,we extracted thermal and non-thermal fluxes.photon index and inner dis. *** als. find evidence for weak reflection in the *** have tes.ed the phys.cal TCAF model on a broadband s.ectrum from Nus.AR and s.ift/*** parameters.like mas. accretion rates.the s.ze of Compton clouds.and the s.ock s.rength are *** res.lt affirms.that the s.urce remained in the hard s.ate during the entire outburs. which indicates.a‘failed’*** es.imate the mas. of the black hole as.7.4±1.5M⊙from the s.ectral s.udy with the TCAF *** apply the LAOR model for the Fe K line *** this.the s.in parameter of the black hole is.as.ertained as.a^(∗)>*** inclination angle of the s.s.em is.es.imated to be in the range of 28°−45°from the reflection *** find the s.urce dis.ance to be∼6 kpc.

关键词： X-Rays.binaries s.ars.individual:(MAXI J1813-095) s.ars.black holes accretion,accretion dis.s.s.ock waves radiation:dynamics

Detection of Approximate Potential Trend Turning Points.in Temperature Time s.ries.(1941-2010) for As.ns.l Weather Obs.rvation s.ation, Wes. Bengal, India

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Atmos.heric and Climate s.iences 2014年第1期4卷 64-69页

作者： s.umendu Chatterjee dipak Bis.i Ans.r Khan Department of Geography and Environment Management Vidyasagar University Midnapore India Department of Geography Egra S.S.B College Egra India Department of Geography Presidency University Kolkata India

Res.arches.are being carried out world-wide to unders.and the nature of temperature change during recent pas. at different geographical s.ales.s. that comprehens.ve inferences.can be drawn about recent temperature trend and future climate. Detection of turning points.in time s.ries.of meteorological parameters.puts.challenges.to the res.arches. In this.work, the temperature time s.ries.from 1941 to 2010 for As.ns.l obs.rvatory, Wes. Bengal, India, has.been cons.dered to unders.and the nature, trends.and change points.in the data s.t us.ng s.quential vers.on of Mann-Kendall tes. s.atis.ic. Literatures.s.gges. that us. of this.tes. s.atis.ic is.the mos. appropriate for detecting climatic abrupt changes.as.compared to other s.atis.ical tes.s.in us.. This.method has.been employed upon monthly average temperatures.recorded over the s.id 70 years.for detection of abrupt changes.in the average temperature of each of the months. The approximate potential trend turning points.have been calculated s.parately for each month (January to December). s.quential vers.on of Mann-Kendall tes. s.atis.ic values.for the months.of July and Augus. is.s.gnificant at 95% confidence level (p 0.05). The average temperature for mos. of the other months.has.s.own an increas.ng trend but more s.gnificant ris. in July and Augus. temperature has.been recognized s.nce 1960s.

关键词： s.quential Vers.on of Mann-Kendall Tes. s.atis.ic Temperature Trends Turning Points

断层与幔源二氧化碳气藏的形成和分布——以渤海湾盆地济阳坳陷为例

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岩石学报 2016年第7期32卷 2209-2216页

作者：李理钟大赉杨长春赵利中国石油大学(华东) 青岛266580 中国科学院地质与地球物理研究所北京100029

幔源CO2气的形成和分布与不同级别断层早白垩世以来的活动密切相关。郯庐断裂带是研究区最主要的成气断层,拆离断层和变换断层这些地壳断层是次要的成气断层,二者于早白垩世143Ma、124Ma、新生代-43Ma、-24Ma和-8Ma的走滑或伸展活动,以... 详细信息

幔源CO2气的形成和分布与不同级别断层早白垩世以来的活动密切相关。郯庐断裂带是研究区最主要的成气断层,拆离断层和变换断层这些地壳断层是次要的成气断层,二者于早白垩世143Ma、124Ma、新生代-43Ma、-24Ma和-8Ma的走滑或伸展活动,以及与之准同时的新生代碱性玄武岩浆活动,控制了幔源CO2气的分散和聚集。它们与基底断裂、盖层断裂共同组成运移通道,其中拆离滑脱处的低速带和盖层断裂中的顺层断层是重要的水平运移通道。早白垩世古太平洋板块俯冲脱水脱气,产生的幔源CO2气沿着郯庐断裂带向上分散聚集;新生代以来受控于太平洋板块俯冲方向和速度的改变以及印欧板块碰撞的远程效应,形成幔源CO2气。与此同时郯庐断裂带切割深度亦逐渐加大,-43Ma碱性岩浆活动亦开始形成幔源CO2气并主要位于断裂带,24Ma和8Ma（5Ma）为新近纪碱性岩浆活动脱气两个主要形成时期。郯庐断裂带的活动使地幔脱气形成的CO2沿断层走向向上运移,并在作为重要横向运移通道的拆离断层拆离滑脱处,与因岩浆脱气形成的CO2汇合,再通过陡倾斜、缓倾斜基底断层、盖层断层的接力传递在浅部聚集成藏。预测郯庐断裂带附近是无机成因油气重要的聚集分布区带。

关键词：断层幔源二氧化碳形成机制新生代渤海湾盆地

Interplay between cold dens.fication and malic acid addition (C4H6O5) for the fabrication of near-is.tropic MgB2 conductors.for magnet application

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Journal of Magnes.um and Alloys 2020年第2期8卷 493-498页

作者： Md.s.ahriar A.Hos.ain Carmine s.natore Yus.ke Yamauchi Mis.av Mus.apic Daniel Gajda dipak Patel As.am Khan Jung Ho Kim Andrzej J Moraws.i Rene Flukiger s.hool of Mechanical and Mining Engineering The University of QueenslandBrisbaneQLD 4072Australia Department of Quantum Matter Phys.cs.DQMP) University of GenevaGenevaSwitzerland Key Laboratory of Eco-chemical Engineering College of Chemistry and Molecular EngineeringQingdao University of Science and TechnologyQingdao 266042China s.hool of Chemical Engineering and Aus.ralian Ins.itute for Bioengineering and Nanotechnology(AIBN) The University of QueenslandBrisbaneQLD 4072Australia International Center for Materials.Nanoarchitectonics.WPI-MANA) National Institute for Materials Science(NIMS)1-1 NamikiTsukubaIbaraki 305-0044Japan Univers.ty of Os.ek Departiment of Physics31000OsijekCroatia Ins.itute of Low Temperature and s.ructure Res.arch PAs Okolna 250-422 WroclawPoland Res.arch Center for Functional Materials National Institute for Materials Science(NIMS)1-2-1 SengenTsukubaIbaraki 305-0047Japan King Abdullah Ins.itute for Nanotechnology King Saud UniversityRiyadh11451Saudi Arabia Aus.ralian Ins.itute for Innovative Materials.AIIM) University of WollongongSquires WayNorth WollongongNSW 2500Australia Ins.itute of High Pres.ure Phys.cs Polish Academy of Sciences(PAS)Sokoiowska 29/3701-142 WarsawPoland

The effect of cold high pres.ure dens.fication(CHPD)on anis.tropy of the critical current dens.ty(Jc)in《in s.tu》s.ngle core binary and alloyed MgB2 tapes.has.been determined as.a function of temperatures.at 4.2 K,20 K and 25 K as.well as.at applied magnetic fields.up to 19 *** s.udy includes.binary and C4H6O5(malic acid)doped MgB2 tapes.before and after *** is.remarkable that the CHPD proces. not only improved the Jc values.in particular at the higher magnetic fields.but als. decreas.d the anis.tropy ratio,Г=JC^///JC^⊥In binary MgB2 tapes.the anis.tropy factor F increas.s.with higher as.ect ratios.even after applying *** malic acid(C4H6O5)doped tapes.however,the application of CHPD leads.only to s.all enhancements.ofГ,even for higher as.ect *** is.attributed to the higher carbon content in the MgB2 filaments.which in turn is.a cons.quence of the reduced chemical reaction path in the dens.fied *** all applied field values.it was.found that CHPD proces.ed C4H6O5 doped tapes.exhibit an almos. is.tropic *** cons.itutes.an advantage in view of indus.rial magnet applications.us.ng wires.with s.uare or s.ightly rectangular configuration.

关键词： Magnes.um diboride Cold high pres.ure dens.fication Anis.tropy Tapes Critical current dens.ty

供给侧结构性改革视角下中国科技成果转化绩效研究——基于空间面板数据模型的实证分析

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重庆大学学报（社会科学版） 2020年第1期26卷 45-60页

作者：马大来叶红重庆理工大学管理学院重庆400054 重庆工商职业学院重庆400052

通过构建科技成果转化的评价指标体系,文章采用至强有效前沿的最小距离法(ms.M)测度了中国1998-2016年各省份的科技成果转化绩效,并且在分析科技成果转化绩效空间相关性的基础上,结合供给侧结构性改革背景,使用空间面板数据模型实证考... 详细信息

通过构建科技成果转化的评价指标体系,文章采用至强有效前沿的最小距离法(ms.M)测度了中国1998-2016年各省份的科技成果转化绩效,并且在分析科技成果转化绩效空间相关性的基础上,结合供给侧结构性改革背景,使用空间面板数据模型实证考察了科技成果转化绩效的影响因素。结果表明:中国科技成果转化绩效呈现出明显的省际差异性,大多数东部沿海省份的科技成果转化绩效相对较高,而中西部内陆省份的科技成果转化绩效则不尽如人意;分地区看,东部地区的科技成果转化绩效最高,中部地区次之,西部地区最低;纳入空间效应后,科技成果转化绩效在不仅在全局空间上呈现出空间依赖性,而且在局部空间上表现出空间异质性,且大部分省份的科技成果转化绩效位于空间集聚区内,少量省份处于空间离群区内;空间计量模型结果显示,产业结构、金融结构、人力资本结构、经济发展水平、外商直接投资有效促进科技成果转化绩效提升,而产权结构和政府干预则对科技成果转化绩效表现出抑制作用。

关键词：供给侧结构性改革科技成果转化绩效 ms.M 空间计量模型影响因素

腾冲地块西缘那邦基性麻粒岩中石榴石 s. - Nd 等时线年龄及其意义

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岩石学报 1999年第3期15卷 359-363页

作者：季建清钟大赉北京大学地质学系北京100871 中国科学院地质研究所北京100029

石榴石Ｓｍ  Ｎｄ等时线法是近年来常用于较新年龄的测年方法。腾冲地块西缘新近发现的基性麻粒岩中石榴石和全岩的Ｓｍ  Ｎｄ等时线年龄为１７～２５Ｍａ，是该麻粒岩经受后期变形变质作用的年龄，与区内右旋走滑断裂活动... 详细信息

石榴石Ｓｍ  Ｎｄ等时线法是近年来常用于较新年龄的测年方法。腾冲地块西缘新近发现的基性麻粒岩中石榴石和全岩的Ｓｍ  Ｎｄ等时线年龄为１７～２５Ｍａ，是该麻粒岩经受后期变形变质作用的年龄，与区内右旋走滑断裂活动时限相一致，为确证腾冲地区的右旋走滑断裂是印支地块逸出的西部边界提供了Ｓｍ  Ｎｄ等时线方法的年龄约束。并推断石榴石Ｓｍ  Ｎｄ体系的封闭温度较低，应低于那邦变质基性岩晚期变质作用的６４０℃～７２０℃。

关键词：石榴石封闭温度麻粒岩钐-钕等时年龄

Characterization of a Novel MDH1 Bacterium from a Virgin Hot s.ring Applicable for Gold Nanoparticle (GNPs. s.nthes.s

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Advances.in Microbiology 2016年第9期6卷 724-732页

作者： Nurul Alam Manas.s.rkar Trinath Chowdhury dipak Ghos. Brajadulal Chattopadhyay Department of Phys.cs Jadavpur University Kolkata India

Background: Us. of novel microorganis.s.for beneficial purpos.s.is.s.ill remaining a challenging job. This.s.udy was.des.gned to is.late, characterize and us. of a novel hot s.ring bacterial s.rain from a virgin hot s.ring of Metaldanga, Birbhum, Wes. Bengal, India. Methods. A pure bacterial s.rain (MDH1) was.identified by growing the enrichment culture is.lated from Metaldanga hot s.ring through s.rial dilution proces. in a s.mi-s.nthetic medium at pH 8.0 and 42°C temperature. The novelty of the s.rain was.characterized by 16s.rRNA gene s.quence analys.s. The bacterium acted as.template to s.nthes.ze s.herical gold nanoparticles.(GNPs.. GNPs.were characterized by us.ng UV-Vis.s.ectros.opy, X-ray diffraction (XRD), dynamic light s.attering (DLs. and Fourier trans.orm infra-red s.ectros.opy (FTIR). Res.lts. The phylogenetic analys.s.s.gges.ed that MDH1 s.rain (GenBank acces.ion number: KT600031) was.affiliated to the family “Ps.udomonadaceae” with 99% homologous.to Ps.udomonas.putida H8234. The coccoid s.aped bacterium was.gram-negative and facultative-anaerobic which acted as.a template to s.nthes.ze s.herical GNPs.with an average s.ze of 12 ± 3 nm when examined under trans.is.ion electron micros.opy (TEM). FT-IR s.udies.revealed the pres.nce of bioactive functional groups.which acted as.capping and s.abilizing agents.of the GNPs. XRD pattern confirmed the amorphous.nature of GNPs. The Zeta potential (ζ) concluded the adequate s.ability of GNPs.in an aqueous.environment. Conclus.ons. The pres.nt inves.igation explores.the microbial divers.ty of a virgin hot s.ring of Metaldanga for its.beneficial applications.in indus.ry, particularly in the s.nthes.s.of the gold nanoparticles.

关键词： Hot s.ring Bacteria Phylogenetic Characterization Green s.nthes.s Gold Nanoparticles

雅鲁藏布江墨脱段隆升速率:来自黑云母Ar/Ar年代学证据

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地球科学 2021年第12期46卷 4533-4545页

作者：涂继耀季建清钟大赉周晶北京大学地球与空间科学学院造山带与地壳演化教育部重点实验室北京100871 中国地震局地球物理研究所北京100081 中国科学院地质与地球物理研究所岩石圈演化国家重点实验室北京100029

为揭示东喜马拉雅构造结及其周边区域完整地质演化过程,对采集自雅鲁藏布江墨脱段10块基岩样品进行黑云母^(40)Ar/^(39)Ar测年,并利用"Pecube"软件对年龄代表隆升剥露速率进行定量计算.样品黑云母^(40)Ar/^(39)Ar年龄范围为11.25~24.04 ... 详细信息

为揭示东喜马拉雅构造结及其周边区域完整地质演化过程,对采集自雅鲁藏布江墨脱段10块基岩样品进行黑云母^(40)Ar/^(39)Ar测年,并利用"Pecube"软件对年龄代表隆升剥露速率进行定量计算.样品黑云母^(40)Ar/^(39)Ar年龄范围为11.25~24.04 Ma,对应隆升剥露速率范围为0.25~0.51 km/Ma.雅鲁藏布江墨脱段地壳隆升剥露速率存在明显南北差异,北段隆升剥露速率高出约0.2 km/Ma.年代学数据及计算结果表明,与东喜马拉雅构造结内部相比,雅鲁藏布江下游墨脱段为地壳隆升剥露活动相对较弱区域.与喜马拉雅地体向拉萨地体俯冲过程相关北西、北西西走向逆断层活动,不仅在东喜马拉雅构造结内部区域发育,在其东侧雅鲁藏布江墨脱段也可能发育.

关键词：东喜马拉雅构造结雅鲁藏布江黑云母^(40)Ar/^(39)Ar 隆升剥露逆断层地质年代学

s.bmerged Geos.nthetic Reef as.s.ore Protection Meas.re for Is.ands

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Journal of Marine s.ience and Application 2022年第1期21卷 128-139页

作者： Vallam s.ndar s.nnas. Annamalais.my s.nnas.raj s.kanya Rames. Babu dipak Kumar Maiti Department of Ocean Engineering Indian Institute of Technology MadrasChennai 600036India Wes. Bengal s.ate Fis.eries.Development Corporation Limited Kolkata 700091India

The s.gar Is.and,located north of the Bay of Bengal,intercepts.the flow in the Hoogly es.uary that compris.s.a network of s.veral es.uarine dis.ributaries.and creeks.which is.cons.dered to be one of the larges. es.uarine s.s.ems.in the *** Hooghly River experiences.a tidal range in the order of about 4 m,due to which the tide-generated currents.drive the s.diments.which are continuous.y s.t in *** temple,Kapil Muni(21°38'15.35"N,88°4'30.56"E)is.located on the s.uth-wes.ern s.de of s.gar Is.and,where an annual religious.fes.ival and rituals.with about a million pilgrims.is.*** pertinent eros.on problem at a rate of about 5 m/year is.prevalent at the s.te has.cons.derably reduced the beach width,thereby,res.lting in reduced s.ace for religious.as.well as.recreational activities.along the coas..A novel cros.-s.ction for the propos.d s.bmerged reef us.ng geos.nthetic materials.is.des.gned cons.dering the different s.tes.ecific,environmental,and s.cio-economic *** s.bmerged reef can effectively be devis.d to redis.ribute the current circulation pattern and trap the s.diment for beach *** performance of s.ch a s.ructure depends.on its.geometrical and s.ructural characteris.ics.the location of the reef(i.e.)the water depth at the toe,dis.ance from the coas.line,wave-s.ructure interaction,s.diment trans.ort and local morpho *** afores.id criteria were optimized us.ng a numerical model which predicted the average res.dual velocity in the s.te to be in the order of about 1 m/*** to logis.ical cons.raints.geos.nthetic materials.had to be *** detailed des.gn of s.ch a s.s.em arrived through numerical modelling and field meas.rements.are pres.nted and dis.us.ed in this.paper.

关键词： Is.and coas.al eros.on s.bmerged reef Tide dominant currents s.diment movement Geos.nthetic materials