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对微量元素提高肥效的研究

中氮肥 1988年第5期 103-107页

作者： D.L.Deb G.N.Gupta M.b.Meisheri R.K.Rattan A.K.sarkar 李福生齐鲁石化公司第一化肥厂

微量元素对农作物增产的作用尚未被人们所认识和按受,实际上即使提供最好的化肥和适宜的耕作,农作物产量可能仅仅由于微量元素不足而受到影响。印度农科院通过放射性同位素对锌、铁、锰、铜、氯等微量元素进行过基础研究,得出的结论是... 详细信息

微量元素对农作物增产的作用尚未被人们所认识和按受,实际上即使提供最好的化肥和适宜的耕作,农作物产量可能仅仅由于微量元素不足而受到影响。印度农科院通过放射性同位素对锌、铁、锰、铜、氯等微量元素进行过基础研究,得出的结论是微量元素对农作物的生长和常量营养元素同等重要,必须进行适当的调查研究。研究分析发现:农田和果园中农作物的微量元素锌、铁普遍不足,而蔬菜作物主要是硼、钼不足。

关键词：锌肥作物微量元素痕量元素肥效土壤条件农作物生长养份自扩散系数施用量微量元素肥料痕量元素肥料

Maser radiation from collisionless shocks: application to astrophysical jets

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High Power Laser Science and Engineering 2019年第1期7卷 120-127页

作者： D.C.Speirs K.Ronald A.D.R.Phelps M.E.Koepke R.A.Cairns A.Rigby F.Cruz R.M.G.M.Trines R.bamford b.J.Kellett b.Albertazzi J.E.Cross F.Fraschetti P.Graham P.M.Kozlowski Y.Kuramitsu F.Miniati T.Morita M.Oliver b.Reville Y.Sakawa S.sarkar C.Spindloe M.Koenig L.O.Silva D.Q.Lamb P.Tzeferacos S.Lebedev G.Gregori R.bingham Department of Physics SUPA University of Strathclyde Department of Physics West Virginia University School of Mathematics and Statistics University of St.Andrews Department of Physics University of Oxford GoLP/Instituto de Plasmas e Fus?u Nuclear Instituto Superior T'ecnico Universidade de Lisboa STFC Rutherford Appleton Laboratory Laboratoire pour l’Utilisation de Lasers Intenses UMR7605 CNRS CEA Universit'e Paris VI Ecole Polytechnique Departments of Planetary Sciences and Astronomy University of Arizona AWE Aldermaston Reading West Berkshire Department of Physics National Central University Institute of Laser Engineering Osaka University School of Mathematics and Physics Queen’s University Belfast Department of Astronomy and Astrophysics University of Chicago Imperial College London

This paper describes a model of electron energization and cyclotron-maser emission applicable to astrophysical magnetized collisionless shocks. It is motivated by the work of begelman, Ergun and Rees [Astrophys. J. 625, 51(2005)] who argued that the cyclotron-maser instability occurs in localized magnetized collisionless shocks such as those expected in blazar jets. We report on recent research carried out to investigate electron acceleration at collisionless shocks and maser radiation associated with the accelerated electrons. We describe how electrons accelerated by lower-hybrid waves at collisionless shocks generate cyclotron-maser radiation when the accelerated electrons move into regions of stronger magnetic fields. The electrons are accelerated along the magnetic field and magnetically compressed leading to the formation of an electron velocity distribution having a horseshoe shape due to conservation of the electron magnetic moment. Under certain conditions the horseshoe electron velocity distribution function is unstable to the cyclotron-maser instability [bingham and Cairns, Phys. Plasmas 7, 3089(2000); Melrose, Rev. Mod. Plasma Phys. 1, 5(2017)].

关键词： laboratory astrophysics plasma physics particle acceleration plasma-wave instabilities

干扰素通过肿瘤坏死因子相关凋亡诱导配体提高人类NK细胞功能

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干扰素通过肿瘤坏死因子相关凋亡诱导配体提高人类NK细胞功能

采用响应曲面法优化脚踏分级机山杏核现场分级操作(摘选)

中华医学会第八次全国血液学学术会议

作者：刘延方 M. Chawla sarkar b. S. Jacobs M. K. Cathcart J. Maciejewski E. C. borden 郑州大学第一附属医院血液科美国 Cleveland Clinic Foundation

研究证明干扰素(IFN)能够诱导一种新的促调亡基因——肿瘤坏死因子相关凋亡诱导配体(TRAIL)基因在某些肿瘤细胞的表达。目的:为了检测IFN刺激基因——TRAIL在NK细胞介导的靶细胞溶解中的作用,作者研究了IFN诱导TRAIL在NK细胞的表达及功...

研究证明干扰素(IFN)能够诱导一种新的促调亡基因——肿瘤坏死因子相关凋亡诱导配体(TRAIL)基因在某些肿瘤细胞的表达。目的:为了检测IFN刺激基因——TRAIL在NK细胞介导的靶细胞溶解中的作用,作者研究了IFN诱导TRAIL在NK细胞的表达及功能。方法:应用免疫磁珠法纯化人外周血NK细胞,经过IFN-αlb,IFN—α2b和IFN-β刺激后,应用LDH法检测NK细胞杀伤靶细胞-

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农业工程 2014年第4期4卷 186-188页

作者： A E Kate U C Lohani N C Shahi A sarkar J P Pandey G b Pant农业技术大学采后加工和食品工程学院

分级是山杏核采后加工利用的最初操作步骤。利用响应面分析对踏板式山杏核分级机机械参数和分级操作(以尺寸为标准)进行优化设计。采用3因素(踏板速度、进料速度和含水率)3水平(速度60、70和80 r/min,进料速度275、300和375 kg/h,含水率... 详细信息

分级是山杏核采后加工利用的最初操作步骤。利用响应面分析对踏板式山杏核分级机机械参数和分级操作(以尺寸为标准)进行优化设计。采用3因素(踏板速度、进料速度和含水率)3水平(速度60、70和80 r/min,进料速度275、300和375 kg/h,含水率10.5%、12.5%和14.5%)研究分级效率(%)和分级能力(kg/h)。为得到自变量最优解,对试验数据进行分析。开发了全二阶模型用于预测反应(分级效率和分级能力),并且研究了各个参数及其相互作用。试验结果表明,分级效率和分级能力分别为75.9%~82.4%和270~325 kg/h。在踏板速度75 r/min,进料速度325 kg/h和核含水率14.5%时,分级机可以达到最大分级效率和分级能力。

关键词：分级机响应面分析优化二阶模型

双能CT小肠成像碘密度评价克罗恩病活动性炎症:与组织病理学分析的比较

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国际医学放射学杂志 2021年第6期 736-736页

作者： b.Dane S.sarkar M.Nazarian H.Galitzer T.O'Donnell F.Remzi 万怡轩

研究证明与临床标志物炎症相比,双能CT小肠成像(DECTE)可用于描述克罗恩病的活动情况,但尚未有研究与组织病理学标本进行比较。目的比较同一克罗恩病病人

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局部应用氯霉素可致急性肝炎

英国医学杂志中文版 2010年第1期13卷 60-60页

作者： b Doshi S sarkar 陈永兵(译) 闫桂玲(译) Aintree Centre for Gastroenterology University Hospitals Aintree Liverpool 北京军区总医院肝胆外科

我们报道1例使用氯霉素滴眼液治疗结膜炎而导致的药物性肝炎。虽然全身使用氯霉素引起的肝脏并发症已有报道，但成人局部使用氯霉素引起该并发症尚未见报道。

关键词：氯霉素滴眼液急性肝炎局部应用药物性肝炎局部使用并发症结膜炎

The Nano Research Young Innovators Awards in bio-inspired nanomaterials

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Nano Research 2024年第2期17卷 417-425页

作者： Jun Chen Shuotao Wang Department of bioengineering University of CaliforniaLos AngelesLos AngelesCA 90095USA Key Laboratory of bio-inspired Materials and Interfacial Science Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190China

Nano Research Young Innovators(NR45)Awards are designed to acknowledge and celebrate the achievements of young researchers under 45 years of *** individuals have made significant contributions to the field of nanoscience and *** the inaugural NR45 Awards in 2018,the journal's editorial board has recognized over a hundred innovators specializing in nanobiotechnology,nano energy,two-dimensional materials,and *** focus of the 2023 NR45 Awards is on bioinspired nanomaterials,acknowledging thirty-three outstanding young innovators for their extraordinary contributions in developing these materials with applications spanning clean energy,human healthcare,monitoring,and disease treatments,as shown in *** extend our heartfelt congratulations to all the 33 NR45 Awardees in 2023!

关键词： journal materials contributions

细胞质雄性不育系V20A在孟加拉国的天然异交程度

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福建稻麦科技 1984年第3期 93-93页

作者： H·C·sarkar 陈赵

1982年bRRI（孟加拉水稻研究所）发起与IRRI（国际水稻研究所）进行杂交稻方面的协作研究。成功的杂交稻成果依赖于大量的细胞质雄性不育系的异交。我们曾研究过细胞质雄性不育系v20A与它的保持系u20b形成的杂交种子的大田产量(A20b为... 详细信息

1982年bRRI（孟加拉水稻研究所）发起与IRRI（国际水稻研究所）进行杂交稻方面的协作研究。成功的杂交稻成果依赖于大量的细胞质雄性不育系的异交。我们曾研究过细胞质雄性不育系v20A与它的保持系u20b形成的杂交种子的大田产量(A20b为花粉源)。 25株25日龄的V20b秧苗,在一个隔离区里在20×20厘米为间隔的5行上,每丛移植1株幼苗。与此同时,在V20b秧苗周围以多种间隔距离——20、40、60、80和100cm种子30日龄的V20A秧苗,如同V20b一样种

关键词：异交异型杂交细胞质雄性不育系秧苗程度

Measurements of dihadron correlations relative to the event plane in Au+Au collisions at√^(S)NN=200 GeV

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Chinese Physics C 2021年第4期45卷 198-241页

作者： H.Agakishiev M.M.Aggarwal Z.Ahammed A.V.Alakhverdyants I.Alekseev J.Alford b.D.Anderson C.D.Anson D.Arkhipkin G.S.Averichev J.balewski D.R.beavis N.K.behera R.bellwied M.J.betancourt R.R.betts A.bhasin A.K.bhat H.bichsel J.bieleik J.bielcikova b.biritz L.C.bland W.borowski J.bouchet E.braidot A.V.brandin A.bridgeman S.G.brovko E.bruna S.bueltmann I.bunzarov T.P.burton X.Z.Cai H.Caines M.Calderon de la barca Sanchez D.Cebra R.Cendejas M.C.Cervantes Z.Chajecki P.Chaloupka S.Chattopadhyay H.F.Chen J.H.Chen J.Y.Chen L.Chen J.Cheng M.Cherney A.Chikanian K.E.Choi W.Christie P.Chung M.J.M.Codrington R.Corliss J.G.Cramer H.J.Crawford S.Dash A.Davila Leyva L.C.De Silvat R.R.Debbe T.G.Dedovich A.A.Derevschikov R.Derradi de Souza L.Didenko P.Djawotho S.M.Dogra X.Dong J.L.Drachenberg J.E.Draper J.C.Dunlop L.G Efimov M.Elnim J.Engelage G Eppley M.Estienne L.Eun O.Evdokimov R.Fatemi J.Fedorisin A.Feng R.G.Fersch P.Filip E.Finch V.Fine Y.Fisyak C.A.Gagliardi D.R.Gangadharan A.Geromitsos F.Geurts P.Ghosh Y.N.Gorbunov A.Gordon O.Grebenyuk D.Grosnick S.M.Guertin A.Gupta W.Guryn b.Haag O.Hajkova A.Hamed L-X.Han J.W.Harris J.P.Hays-Wehle M.Heinz S.Heppelmann A.Hirsch E.Hjort G.W.Hoffmann D.J.Hofiman b.Huang H.Z.Huang T.J.Humanic L.Huo G.Igo P.Jacobs W.W.Jacobs C.Jena F.Jin J.Joseph E.G.Judd S.Kabana K.Kang J.Kapitan K.Kauder H.Ke D.Keane A.Kechechyan D.Kettler D.P.Kikola J.Kiryluk A.Kisiel V.Kizka A.G.Knospe D.D.Koetke T.Kollegger J.Konzer I.Koralt L.Koroleva W.Korsch L.Kotchenda V.Kouchpil P.Kravtsov K.Krueger M.Krus L.Kumar P.Kurnadi M.A.C.Lamont J.M.Landgraf S.LaPointe J.Lauret A.Lebedev R.Lednicky J.H.Lee W.Leight M.J.LeVine C.Lil L.Li N.Li W.Li X.Li X.Li Y.Li Z.M.Li M.A.Lisa F.Liu H.Liu J.Liu T.Ljubicic W.J.Llope R.S.Longacre W.A.Love Y.Lu E.V.Lukashov X.Luo G.L.Ma Y.G.Mai D.P.Mahapatra R.Majka O.I.Mall L.K.Mangotra R.Manweiler S.Margetis C.Markert H.Masui H.S.Matis Yu.A.Matulenko D.MeDonald T.S.McShane A.Meschanin R.Milner N.G.Minaev S.Mioduszewski A.Mischke M.K.Mitrovski b.Mohanty M.M.Mondal b.Morozov D.A.Morozov M.G.Munhoz M Argonne National Laboratory Argonnellinois 60439USA brookhaven National Laboratory UptonNew York 11973USA University of Califomia BerkeleyCaliformnia 94720USA University of California DavisCalifornia 95616USA University of Califormnia Los AngelesCalifomia 90095USA Universidade Estadual de Campinas Sao PauloBrazil University of Illinois at Chicago ChicagoIlinois 60607USA Creighton University OmahaNebraska 68178USA Czech Technical University in Prague FNSPEPrague11519Czech Republic Nuclear Physics Institute AS CR 25068 Rez/PragueCzech Republic University of Frankfurt FrankfurtGermany Institute of Physics Bhubaneswar 751005India Indian Institute of Technology MumbaiIndia Indiana University BloomingtonIndiana 47408USA Alikhanov Instiute for Theoretical and Experimental Physics MoscowRussia University of Jammu Jammu 180001India Joint Institute for Nuclear Research Dubna141980Russia Kent State University KentOhio 44242USA University of Kentucky LexingtonKentucky40506-0055USA Institute of Modern Physics LanzhouChina Lawrence berkeley National Laboratory BerkeleyCalifornia 94720USA Massachusetts Institute of Technology CambridgeMA 02139-4307USA Mx-Planck-Institut fir Physik MunichGermany Michigan State University East LansingMichigan 48824USA Moscow Engineering Physics Institute Moscow Russia NIKHEF and Utrecht University AmsterdamThe Netherlands Ohio State University ColumbusOhio 43210USA Old Dominion University NorfolkVA23529USA Panjab University Chandigarh 160014India PennsyIvania State University University ParkPennsylvania 16802USA Institute of High Energy Physics ProtvinoRussia Purdue University West LafayetteIndiana 47907USA Pusan National University PusanRepublic of Korea University of Rajasthan Jaipur 302004India Rice University HoustonTexas 77251USA Universidade de Sao Paulo Sao PauloBrazil University of Science&Technology of China Hefei 230026.China Shandong University JinanShandong 250100China Shanghai Institute of Applied Physics Shanghai 201800Chi

Dihadron azimuthal correlations containing a high transverse momentum(pr)trigger particle are sensit-ive to the properties of the nuclear medium created at RHIC through the strong interactions occurring between the traversing parton and the medium,*** measurements revealed a strong modification to di-hadron azimuthal correlations in Au+Au collisions with respect to ptp and d+Au *** modification in-creases with the collision centrality,suggesting a path-length or energy density dependence to the je-quenching *** paper reports STAR measurements of dihadron azimuthal correlations in mid-central(20%-60%)Au+Au collisions at√^(S)NN=200 GeV as a function of the trigger particle's azimuthal angle relative to the event plane,Ф_(s)=|Ф_(t)-ψ_(Ep)|.The azimuthal correlation is studied as a function of both the trigger and associated particle *** subtractions of the combinatorial background and anisotropic flow,assuming Zero Yield At Minimum(ZYAM),are *** correlation results are first discussed with subtraction of the even harmonic(elliptic and quadrangu-lar)flow *** away-side correlation is strongly modifed,and the modification varies withФ_(s),with a double-peak structure for out-of-plane trigger *** near-side ridge(long range pseudo-rapidity△_(η)correla-tion)appears to drop with increasingФ_(s)while the jet-like component remains approximately *** correla-tion functions are further studied with the subtraction of odd harmonic triangular flow background arising from *** is found that the triangular flow,while responsible for the majority of the amplitudes,is not sufficient to explain theφs-dependence of the ridge or the away-side double-peak *** dropping ridge withФ_(s)could be attributed to aФ_(s)-dependent lliptie anisotropy;however,the physics mechanism of the ridge remains an open *** with aФ_(s)-dependent elliptic flow,the away-side correlation structure

关键词： relativistic heavy ion collisions dihadron correlations jet-medium interactions anisotropic flow background event plane