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Development and Char.cter.zation of Car.on Nanotube r.infor.ed Aluminium-6061 Metal Matr.x Composites

Jour.al of Miner.ls and Mater.als Char.cter.zation and Engineer.ng 2021年第3期9卷 290-300页

作者： preethi. K r.ju T.N Shivappa H.A Depar.ment of Mechanical Engineer.ng Dr. Ambedkar Institute of Technology Bengaluru India

An emer.ing class of new mater.als is being developed with car.on nanotubes as r.infor.ements for.Al6061 matr.x mater.al r.sulting in CNT-MMC composite mater.als. To maximize tensile str.ngth and electr.cal conductivity pr.per.ies of CNT mater.als and for.the MMCs to possess optimal pr.per.ies, some synthetic techniques ar. developed. Car. is taken to ensur. that these techniques ar. economical in pr.duction, pr.vide unifor. r.infor.ement disper.ion in the matr.x and also r.alize str.ng coher.nce adhesion of the CNT r.infor.ements and Al-6061 matr.x mater.al. Aluminum r.infor.ed with CNT via powder.metallur.y (PM) technique can pr.vide a ver. distinct advantage. The pr.mar. dr.ve and distinct advantage in adopting aluminum is lightweight in compar.son to metal and wood composites. Besides weight savings, non-cor.osive, flexible, r.sistance to dent, low on maintenance cost and design flexibility ar. the highlights of aluminum. Aluminum has wide r.nge of application in industr.es because of their.low density, good wor.ability and r.latively low yield str.ngth;wher.as r.infor.ement adds r.gidity and impedes cr.ck pr.pagation to a gr.at extent. Thin fiber. ar. used as r.infor.ement since they possess ver. high str.ngth with impr.ved over.ll pr.per.ies, wher.as CNT has a number.of invaluable and unique pr.per.ies in compar.son to other.fiber. used as r.infor.ement. Due to the r.infor.ement of CNT in aluminum, the r.sultant composite possesses high str.ngth to weight r.tio. In this wor., the CNTs used as r.infor.ement with var.ing weight % of 1, 1.5, 2 and Al6061 alloy as a matr.x mater.al. The composites wer. fabr.cated thr.ugh powder.metallur.y r.ute. Ball milling was done to get homogeneous disper.ion of CNT’s. Samples wer. pr.par.d as per.ASTM standar.s for.var.ous compositions and investigated for.micr.str.ctur. using scanning Electr.n micr.scopy (SEM). The mechanical pr.per.ies like har.ness wer. evaluated by Micr. Vicker. har.ness tester.and compr.ssion str.ngth by

关键词： Al-6061 CNT MMC Powder.Metallur.y

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12-钨磷酸在AlSBA-15上的固定化及其乙酰化催化活性(英文)

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催化学报 2008年第12期29卷 1202-1210页

作者： S.r.VATHI M.Esther.Leena preethi D.MANIKANDAN D.DIVAKAr.A.Valentine r.PA T.SIVAKUMAr Depar.ment of Chemical Engineer.ng A.C.College of TechnologyAnna University Gr.duate College of EngineeringAnna University

12-Tungstophosphor.c heter.poly acid(TPA) with a Keggin str.ctur. was intr.duced into Al-incor.or.ted mesopor.us molecular.sieves(AlSBA-15) by the incipient wetness *** mater.als wer. char.cter.zed by X-r.y diffr.ction,nitr.gen adsor.tion,scanning electr.n micr.scopy,UV-Vis diffuse r.flectance and r.man spectr.scopy,which confir.ed the Keggin and mesopor. *** catalytic activity was evaluated under.solvent-fr.e conditions in the liquid phase at 333-383 K for.the pr.pionylation of anisole with pr.pionic *** catalysts used wer. AlSBA-15,10%,20%,and 40% TPA/AlSBA-15,and 20% TPA/*** the pr.pionylation of anisole with pr.pionic anhydr.de,the substitution occur.ed pr.dominantly at the par. *** 20% TPA/AlSBA-15 catalyst gave a total pr.duct yield of 48% with 98% selectivity towar.s *** r.gener.bility of the catalyst was also studied and was found to be excellent.

关键词： AISBA-15 接触反应活性乙酰化作用

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Factor. pr.dicting adver.e shor.-ter. outcomes in patients with acute cholangitis under.oing Er.P: A single center.exper.ence

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Wor.d Jour.al of Gastr.intestinal Endoscopy 2014年第3期6卷 74-81页

作者： Udayakumar.Navaneethan Nor.a G Gutier.ez r.mpr.sad Jegadeesan preethi GK Venkatesh Madhusudhan r.Sanaka John J Var.o Mansour.A Par.i Depar.ment of Gastr.enter.logy and Hepatology Digestive Disease Institute Cleveland Clinic Foundation

AIM: To identify potential factor. that can pr.dict adver.e shor.-ter. outcomes in patients with acute cholangitis under.oing endoscopic r.tr.gr.de cholangiopancr.atogr.phy(Er.P). METHODS: r.tr.spective analysis of consecutive patients admitted to our.center.for.acute cholangitis and under.ent Er.P fr.m 2001 to 2012. Involvement of two or.mor. or.an systems was ter.ed as or.an failur.(OF). Car.iovascular.failur. was defined based on a systolic blood pr.ssur. of r.placement and/or.r.quir.ng vasopr.ssor.tr.atment; r.spir.tor. failur. if the Pa02 /Fi02 r.tio was r.r.quir.d mechanical ventilation; coagulopathy if the platelet count was r.nal insufficiency if ser.m cr.atinine was > 1.9 mg/dL. Var.ables associated with shor. ter. adver.e clinical outcomes defined as per.istent OF and/or.30-d mor.ality was deter.ined. r.SULTS: A total of 172 patients(median age 62 year., 56.4% female) wer. included. The median door.to Er.P time was 17 h. Bile duct stones wer. the most common etiology(n = 67, 39.2%). In multivar.ate analysis, factor. that wer. independently associated with per.istent OF and/or.30-d mor.ality included Amer.can Society of Anesthesiology(ASA) physical classification scor. > 3(Or.= 7.70; 95%CI: 2.73-24.40), pr.sence of systemic inflammator. r.sponse syndr.me(Or.= 3.67; 95%CI: 1.34-10.3) and door.to Er.P time gr.ater.than 72 h(Or.= 3.36; 95%CI: 1.12-10.20). Door.to Er.P time gr.ater.than 72 h was also associated with 70% incr.ase in the mean length of stay(P r. one point incr.ase in the ASA physical classification and ever. 1 mg/dL incr.ase in the pr.Er.P bilir.bin level was associated with a 34% and 2% incr.ase in the mean length of hospital stay, r.spectively. Tr.nsfer.status did not impact clinical outcomes. CONCLUSION: Higher.ASA physical classification and delays in Er.P ar. associated with adver.e clinical outcomes and pr.longed length of hospital stay in patients with acute cholangitis under.o

关键词： Endoscopic r.tr.gr.de cholangiopancr.atogr.phy Cholangitis Outcomes

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r.tr.eval of Aer.sol Optical Depth fr.m Oceansat-2 OCM

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Open Jour.al of Mar.ne Science 2015年第4期5卷 443-454页

作者： Udaya Lakshmi Sr.per.mbudur.Chandr.lingam Sonnati Nagamani Pullaiahgar. Venkata preethi Latha Thalathoti Depar.ment of Physics JNTUH Hyderabad India Ocean Sciences Gr.up NRSC Balanagar Hyderabad India

Aer.sols ar. the tiny suspended par.icles in the atmospher. playing a major.r.le in influencing the net r.diation budget of the ear.h. The aer.sols also affect cloud micr.physics and those with land or.gin, possibly r.duce the monsoon r.infall. Dynamic and diver.e natur. of the aer.sols var.es accor.ing to differ.nt locations. The aer.sols or.ginating due to deser. dust, r.r.l atmospher.c situations, ur.an pollutants and mar.ne ar.as have wide var.ations and display specific char.cter.stics. r.utine monitor.ng of aer.sol events and their.subsequent disper.al patter. ar. impor.ant in or.er.to under.tand their.r.le in climatic pr.cess. Hence, it is ver. impor.ant to study the aer.sols and their.r.tr.eval str.tegy fr.m the ocean colour.r.mote sensing sensor.. The satellite sensor. pr.vide platfor. for.making obser.ations cover.ng lar.e ar.a as also their.shor.-ter. and fr.quent r.petivity. Ocean-colour.sensor. e.g. CZCS, SeaWiFS, MODIS, POLDAr. Oceansat-1?& 2 OCM have been used to study aer.sols, apar. fr.m being used to study ocean-colour. Most of the ocean-colour.sensor. ar. equipped with a few additional near.infr.r.d (NIr. bands (λ?> 700 nm), which ar. helpful in pr.viding vital infor.ation on atmospher.c aer.sols due to str.ng absor.tion by water.in NIr.wavelengths. The pr.sent wor. is an attempt to study the tempor.l and spatial var.ations of Aer.sol Optical Depth (AOD) over.the Bay of Bengal using Oceansat-2 Ocean Colour.Monitor.(OCM).

关键词： AOD OCM-2 Atmospher.c Cor.ection

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晚安廷库

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英语画刊(高中版) 2020年第29期 14-16页

作者： preethi Nambiar

夜深了,农场里的动物们都进入了甜甜的梦乡。可是廷库翻来覆去,怎么也睡不着——这是一个清朗的月夜,农场里所有的动物都睡着了。除了廷库!"我不困,妈。"可是妈妈没听见,她睡得很熟。他翻来覆去,一会趴着睡,一会仰着睡。

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An Unusual Case of BSND Gene–r.lated (Type IV) Bar.ter.Syndr.me Pr.senting as Antenatal Bar.ter.Syndr.me:A Case r.por. and r.view of Liter.tur.

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Mater.al-Fetal Medicine 2023年第2期5卷 128-130页

作者： Aleena M.Shajan Manish Kumar.preethi Navaneethan Sumita Danda Manisha M.Beck Fetal Medicine Unit Department of ObGynChristian Medical College and HospitalVelloreTamil Nadu 632004India Depar.ment of Neonatology Christian Medical College and HospitalVelloreTamil Nadu 632004India Depar.ment of Clinical Genetics Christian Medical College and HospitalVelloreTamil Nadu 632004India.

Bar.ter.syndr.me is a gr.up of autosomal r.cessive r.nal tubular.disor.er.;it has two types of pr.sentation:antenatal and *** antenatal type pr.sents as sever. unexplained polyhydr.mnios in the second *** is due to fetal ur.nar. losses of sodium,chlor.de,and potassium,leading to fetal *** classic type pr.sents in the late neonatal or.infancy stage,with dehydr.tion,dyselectr.lytemia,failur. to thr.ve,and *** scans ar. nor.al in such *** I and II Bar.ter.syndr.me pr.sents in the antenatal per.od,wher.as type IV has a classic *** descr.be an unusual case of type IVa Bar.ter.syndr.me pr.senting in the antenatal per.od,with sever. *** initial diagnosis was made based on amniotic fluid chlor.de levels and later.confir.ed by per.or.ing a genetic *** testing is impor.ant for.confir.ing diagnosis and pr.gnostication r.gar.ing the condition.

关键词： Antenatal Bar.ter.s syndr.me BSND gene Sensor.neur.l hear.ng loss Polyhydr.mnios Pr.natal diagnosis Amnior.duction Clinical exome sequencing

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Advancement in Indoor.Ver.ical Far.ing for.Micr.gr.en Pr.duction

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Amer.can Jour.al of Plant Sciences（美国植物学期刊） 2019年第8期

作者： preethi r.jan r.jasekar.n r. Lada Mason T. MacDonald

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Quantifying micr.str.ctur.l changes in r.tinitis pigmentosa using spectr.l domain – optical coher.nce tomogr.phy

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Eye and Vision 2019年第1期6卷 91-98页

作者： B.Poor.achandr. Ar.j K.Khur.na preethi Sr.dhar.n Pr.yansha Chatter.ee Chaitr. Jayadev Nar.sh Kumar.Yadav r.hit Shetty Depar.ment of Vitr.o r.tina Narayana Nethralaya Eye InstituteBangaloreIndia. Depar.ment of Ophthalmology Narayana Nethralaya Eye Institute121/CChord Road1“R”BlockRajajinagarBangaloreKarnataka 560010India

Backgr.und:Most patients of established r.tinitis pigmentosa(r.)have subnor.al per.pher.l vision and heavily r.ly on centr.l vision for.their.daily *** visual acuity is dependent on photor.ceptor.sur.ival at the *** of str.ctur.l changes that pr.cede visual loss is *** aim of this study was to cor.elate the Spectr.l Domain-Optical Coher.nce Tomogr.phy(SD-OCT)char.cter.stics with visual acuity in patients with typical ***:This was a r.tr.spective,obser.ational case ser.es of 224 eyes of 113 r. patients conducted a ter.iar. eye car. ***-OCT imaging was done for.all *** r.tinal thickness(Cr.),photor.ceptor.outer.segment length(Pr.S),foveal outer.segment pigment epithelial thickness(FOSPET)and ellipsoid zone(EZ)extent wer. measur.d.A new var.able,FOSPET-Pr.S r.tio(FPr.,obtained by dividing FOSPET by Pr.S is defined and cor.elated to cor.ected distance visual acuity(CDVA)in logMAr.using linear.***:Out of 113 patients,71 wer. males and 42 *** age of the patients was 35.4±15.1 *** CDVA was 0.33±0.25 logMAr.with no differ.nce between the *** Cr.(218.74±83.5μm)and FPr.1.63±0.22)significantly cor.elated to CDVA with a cor.elation coefficient of r.−0.139(p=0.048)and r.0.842(p=0.0001),***(mean=71.15±13.8μm)and Pr.S(mean=44.85±12.5μm)did not show a significant cor.elation to CDVA,independent of ***:r.tinal micr.str.ctur.l changes on SD-OCT,especially the FPr.can be used as a sur.ogate mar.er.to monitor.disease pr.gr.ssion in the centr.l r.tina in degener.tive diseases like r..

关键词： r.tinitis Pigmentosa Photor.ceptor.outer.segment length(Pr.S) Foveal outer.segment pigment epithelial thickness(FOSPET) Ellipsoid zone(EZ) FOSPET-Pr.S r.tio(FPr.

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Fasting for.Labor.tor. Tests Poses a High r.sk of Hypoglycemia in Patients with Diabetes: A Pilot Pr.valence Study in Clinical Pr.ctice

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Inter.ational Jour.al of Clinical Medicine 2016年第10期7卷 653-667页

作者： Saleh Aldasouqi William Cor.er.Geor.e S. Abela Samia Mor. Ker.n Shahar.preethi Kr.shnan Far.an Bhatti Andr.w Hsu Dane Gr.enebaum Division of Endocr.nology Department of Medicine Michigan State University (MSU) College of Human Medicine (CHM) East Lansing MI and Sparrow Health System Lansing MI USA Michigan State Univer.ity Statewide Campus System College of Osteopathic Medicine East Lansing MI USA Division of Car.iology Department of Medicine MSU-CHM East Lansing MI USA Division of Pr.ventive Medicine Department of Medicine Brigham and Women’s Hospital and Harvard Medical School Boston MA USA Inter.al Medicine r.sidency Pr.gr.m Department of Medicine MSU-CHM East Lansing MI and Sparrow Health System Lansing MI USA Family Medicine r.sidency Pr.gr.m Department of Family Medicine MSU-CHM East Lansing MI and Sparrow Health System Lansing MI USA Car. Fr.e Clinic Lansing MI USA MSU College of Science East Lansing MI USA Cor.us Chr.sti Medical Center Corpus Christi TX USA

Objective: Fasting for.lipid pr.files is a deeply-r.oted tr.dition that is being r.visited. In patients with diabetes, such fasting poses a r.sk of hypoglycemia, as obser.ed in r.cent studies and case r.por.s. This iatr.genic, over.ooked, for. of hypoglycemia has been r.fer.ed to as Fasting-Evoked En-r.ute Hypoglycemia in Diabetes (FEEHD). The objective of the study is to deter.ine the pr.valence of FEEHD in clinical pr.ctice. Methods: A two-page sur.ey was administer.d to adults with diabetes on anti-diabetic medication(s). Patients wer. asked if they r.called having exper.enced hypoglycemia while fasting for.labor.tor. tests (FEEHD) dur.ng the pr.ceding 12 months. r.sults: Of 168 patients enr.lled, 166 completed the sur.ey, with a mean age of 55.3 (SD: 15.4) year.. Seventy-nine (47.6%) wer. females. Of these 166 patients, 119 (71 %) had type 2 diabetes. For.y-five patients (27.1%) r.por.ed having exper.enced one or.mor. FEEHD events. Notably, only 31.1% of the patients who exper.enced a FEEHD event infor.ed their.pr.vider.of the event, and only 40% of FEEHD events r.por.edly r.sulted in any subsequent pr.vider.made medication change(s) to pr.vent futur. events. Conclusions: This is the fir.t study of FEEHD pr.valence in clinical pr.ctice, the r.sults of which ser.e to incr.ase awar.ness amongst clinicians about the occur.ence of FEEHD. We believe that FEEHD appear. to be over.ooked by clinicians. The pr.valence of FEEHD in clinical pr.ctice is str.kingly high (27.1%). Mor. concer.ing is the significant under.epor.ing of FEEHD events by patients to their.clinicians (31%). We hope this study will tr.gger.fur.her.investigation to confir. these pr.liminar. findings and modify pr.ctice guidelines.

关键词： Fasting Lipids Glucose Hypoglycemia Lipid Pr.files Nonfasting FEEHD

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印度亚拉文眼科模式(英文)

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眼视光学杂志 2006年第2期8卷 117-119页

作者： Sr.nivasan M Thulasir.j r. preethi Pr.dhan Veni G Ar.vind Eye Car. System Lions Ar.vind Institute of Community Ophthalmology MaduraiIndia

印度亚拉文医院是世界卫生组织合作单位,创造了“大规模、高质量、低成本”的眼科医疗模式,2005年,医院门诊量达163万多,手术超过22万例,其中白内障手术达16万多例,为世界之最。如何有效地借鉴印度亚拉文的模式为我所用,成为中国眼科界... 详细信息

印度亚拉文医院是世界卫生组织合作单位,创造了“大规模、高质量、低成本”的眼科医疗模式,2005年,医院门诊量达163万多,手术超过22万例,其中白内障手术达16万多例,为世界之最。如何有效地借鉴印度亚拉文的模式为我所用,成为中国眼科界同仁日益热烈讨论的一个话题。本刊特邀印度亚拉文医院的主要负责人就该模式的特点撰文介绍。

关键词：医院管理眼科模式亚拉文模式

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