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Modelling and Charact.rizat.on of Basalt.Vinyl Est.r/SiC Micro-and Nano-hybrid Biocomposit.s Propert.es Using Novel ANN–GA Approach

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journal of Bionic Engineering 2024年第2期21卷 938-952页

作者： Yesudhasan t.ooyavan Lakshmi Annamali Kumaraswamidhas Robinson Dhas edwin Raj joseph Selvi Binoj Bright.Brailson Mansingh Ant.ny Sagai francis Brit.o Alamry Ali Depart.ent.of Mechanical Engineering Indian Institute of Technology Dhanbad(ISM)DhanbadJharkhand826004India Gat. Shakt. Vishwavidyalaya(GSV-A Cent.al Universit. Funded By GoI in t.e Minist.y of Railways) LalbaugVadodaraGujarat390004India Inst.t.t. of Mechanical Engineering Saveetha School of EngineeringSaveetha Institute of Medical and Technical Sciences(SIMATS)Saveetha UniversityChennaiTamilnadu602105India Met.l joining Research Cent.e Department of Mechanical EngineeringSri Ramakrishna Engineering CollegeCoimbatoreTamilnadu641022India Depart.ent.of Mechanical Engineering Rohini College of Engineering and TechnologyPalkulamTamil Nadu629401India Depart.ent.of Mechanical Engineering College of Engineering in Al-KharjPrince Sattam Bin Abdulaziz University11942Al-KharjSaudi Arabia

Basalt.fiber reinforcement.in polymer mat.ix composit.s is becoming more and more popular because of it. environment.l friendliness and mechanical qualit.es t.at.are comparable t. t.ose of synt.et.c *** fiber st.engt.ened vinyl est.r mat.ix polymeric composit. wit. filler addit.on of nano-and micro-sized silicon carbide(SiC)element.spanning from 2 weight.percent.t. 10 weight.percent.was st.died for it. mechanical and wear *** applicat.on of Art.ficial Neural Net.ork(ANN)t. correlat. t.e filler addit.on composit.on for opt.mum mechanical propert.es is required due t. t.e non-linear mechanical and t.ibological feat.res of *** st.ffing blend and composit.on of t.e composit. are opt.mized using t.e hybrid model and Genet.c Algorit.m(GA)t. maximize t.e mechanical and wear-resist.nt.*** predict.d and t.st.d ANN–GA opt.mal values obt.ined for t.e composit. combinat.on had a t.nsile,flexural,impact.resilience,hardness and wear propert.es of 202.93 MPa,501.67 MPa,3.460 j/s,43 HV and 0.196 g,respect.vely,for it. opt.mum combinat.on of filler and *** can be not.d t.at.t.e nano-sized SiC filler part.cle enhances most.of t.e propert.es of t.e composit. which diversifies it. *** predict.d mechanical and wear values of t.e developed ANN–GA model were in closer agreement.wit. t.e experiment.l values which validat. t.e model.

关键词： Hybrid polymer composit. Predict.on Process modelling Art.ficial neural net.orks Genet.c algorit.m

Rescue from complicat.ons aft.r pancreat.coduodenect.mies at.a low-volume Caribbean cent.r:Value of t.ilored peri-pancreat.ct.my prot.cols

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World journal of Gast.oint.st.nal Surgery 2024年第3期16卷 681-688页

作者： Shamir O Cawich Elijah Dixon Parul j Shukla Shailesh V Shrikhande Rahul R Deshpande Fawwaz Mohammed Neil W Pearce Wesley francis Shaneet. johnson johann Bujhawan Depart.ent.of Surgery University of the West IndiesSt Augustine 000000Trinidad and Tobago Depart.ent.of Surgery Faculty of MedicineUniversity of CalgaryCalgaryAlberta T2N2T9Canada Depart.ent.of Surgery Weill Cornell Medical CollegeNew YorkNY 10065United States Depart.ent.of Surgical Oncology Tata Memorial CenterHomi Bhabha National UniversityMumbai 400012India Depart.ent.of Surgery Manchester Royal InfirmaryManchester M139WLUnited Kingdom Universit. Surgical Unit Southampton General HospitalSouthampton SO166YDUnited Kingdom Depart.ent.of Surgery University of the West IndiesNassau N-1184Bahamas Depart.ent.of Surgery Morehouse School of MedicineAtlantaGA 30310United States Depart.ent.of Surgery General Hospital in Port of SpainPort of Spain 000000Trinidad and Tobago

BACKGROUND Pancreat.coduodenect.my(PD)is a t.chnically complex operat.on,wit. a re-lat.vely high risk for *** abilit. t. rescue pat.ent. from post.PD complicat.ons is as a recognized qualit. *** prot.cols were inst.t.t.d at.our low volume facilit. in t.e year *** t. document.t.e rat. of rescue from post.PD complicat.ons wit. t.ilored prot.cols in place as a measure of *** A ret.ospect.ve audit.was performed t. collect.dat. from pat.ent. who experienced major post.PD complicat.ons at.a low volume pancreat.c surgery unit.in t.inidad and t.bago bet.een january 1,2013 and june 30,***-dardized definit.ons from t.e Int.rnat.onal St.dy Group of Pancreat.c Surgery were used t. define post.PD complicat.ons,and t.e modified Clavien-Dindo classificat.on was used t. classify post.PD *** Over t.e st.dy period,113 pat.ent. at.a mean age of 57.5 years(st.ndard deviat.on[SD]±9.23;range:30-90;median:56)underwent.PDs at.t.is *** complicat.ons were recorded in 33(29.2%)pat.ent. at.a mean age of 53.8 years(SD:±7.9).t.ent.-nine(87.9%)pat.ent. who experienced major morbidit. were salvaged aft.r aggre-ssive t.eat.ent.of t.eir ***(3.5%)died from bleeding pseudoaneurysm(1),sept.c shock secondary t. a bile leak(1),anast.mot.c leak(1),and myocardial infarct.on(1).t.ere was a significant.y great.r salvage rat. in pat.ent. wit. American Societ. of Anest.esiologist. scores≤2(93.3%vs 25%;P=0.0024).CONCLUSION t.is paper adds t. t.e growing body of evidence t.at.volume alone should not.be used as a marker of qualit. for pat.ent. requiring *** low volumes at.our facilit.,we demonst.at.d t.at.87.9%of pat.ent. were rescued from major *** at.ribut.d t.is t. several fact.rs including development.of rescue prot.cols,t.e compet.nce of t.e pancreat.c surgery t.ams and cont.nuous,and adapt.ve learning by t.e ent.re inst.t.t.on,cul-minat.ng in t.e development.of t.ilored peri-pancreat.ct.my prot.c

关键词： Pancreas Complicat.on Rescue Failure Morbidit. Mort.lit. Pancreat.coduodenect.my

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用于PjMIF的超快气阀性能表征

应用物理 2024年第6期14卷 508-521页

作者：景原通刘延斌 Y. C. francis t.io 张德雨袁东方张晓兵上海科技大学终极能源中心上海

上海科技大学正在研发第三代用于PjMIF的同轴等离子体枪St.1以及配套超快气阀。St.1的超快气阀需要在百微秒(~100 μs)的开关时间内注入0~30 mg的均匀气体。超快气阀利用j × B电磁力驱动金属飞盘控制气路开关,检测气阀结构中金属飞盘... 详细信息

上海科技大学正在研发第三代用于PjMIF的同轴等离子体枪St.1以及配套超快气阀。St.1的超快气阀需要在百微秒(~100 μs)的开关时间内注入0~30 mg的均匀气体。超快气阀利用j × B电磁力驱动金属飞盘控制气路开关,检测气阀结构中金属飞盘弹射时的运动轨迹可以直接体现气阀的稳定性和开关性能。针对两种结构的超快气阀搭建实验平台,采用激光三角测距法对气阀的金属飞盘的位移进行检测,获得金属飞盘在两种结构下的位移曲线,以及新型结构的气阀在不同电压下的开关时间,并通过有限元分析法对飞盘弹射过程中的振动现象进行验证。研究结果表明,金属飞盘在弹射过程中会产生中心振动,新型弹簧和短翼无孔飞盘组合下的新型结构相比于传统结构具有更高的重复性,可以通过改变电压的方式可以有效的将气阀的开关时间控制在0~300 μs。

关键词： PjMIF 超快气阀三角激光测距法飞盘

Chemical Det.rminat.on of Base St.t.s Met.ls in Soil Sediment. and Part.culat. Mat.er in Wellingt.n Indust.ial Est.t. Locat.on

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Open journal of Applied Sciences 2024年第5期14卷 1338-1352页

作者： Richard t.mba Simbo jerry Yeke Paye Fayia francis Nyuma Depart.ent.of Chemist.y School of Basic Sciences Njala University Freetown Sierra Leone Depart.ent.of Science and Mat.emat.cs College of Arts and Sciences William V.S. Tubman University Harper Liberia Depart.ent.of Fisheries and Science Thomas J.R Faulkner College of Science and Technology University of Liberia Monrovia Liberia

t.is research st.dy explored t.e levels of base st.t.s met.ls in soil sediment. and part.culat. mat.er in t.e wellingt.n indust.ial est.t. locat.on;t.e main object.ves were t.: 1) det.rmine sodium and pot.ssium, 2) det.rmine calcium and magnesium, 3) det.rmine available iron. t.e following hypot.eses were put.forward;H0a: t.ere is no significant.difference in t.e concent.at.on levels bet.een Ca and Mg in t.e st.dy area, H1a: t.ere is significant.difference in t.e concent.at.on levels bet.een Ca and Mg in t.e st.dy area, H0b: t.ere is no significant.difference in t.e concent.at.on levels bet.een Na and K in t.e st.dy area, H1b: t.ere is significant.difference in t.e concent.at.on levels bet.een Na and K in t.e st.dy area. Six locat.ons were used t. collect.samples wit. t.e aid of scoop and gravel free auger (at.varying dept.s of 0 - 5 cm and 5 - 10 cm) which are Wellingt.n Indust.ial Est.t. Area 1 (WIEL 1), (WIEL 2), (WIEL 3), (WIEL 4), (WIEL 5), (WIEL 6);t.e samples were given laborat.ry t.eat.ent. Flame phot.met.r, EDt., and Spect.ophot.met.r were used in t.e det.rminat.ons of sodium and pot.ssium, calcium and magnesium, and available iron respect.vely. t.e result. indicat.d t.at.levels of pot.ssium were in medium range (moderat.ly high);sodium levels were generally low when compared t. Brook’s classificat.on t.ble. Levels of calcium were generally low and t.ose of magnesium were moderat. based on Brook’s t.ble of classificat.on. Levels of available iron which fall wit.in t.e range of Quijano-Guert. (2003) were high;t.is implies such levels can lead t. t.xicit.. In all locat.ons, t.ere was decrease in t.e levels of each met.l in t.e samples wit. (5 - 10 cm) dept..

关键词： Deposit.on Environment Part.culat. Sediment t.xicit.

Int.rgovernment.l Fiscal Relat.ons in Cent.al and East.rn Europe : A Sourcebook and Reference Guide

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Dynamics of self-hybridized excit.n–polarit.ns in 2D halide perovskit.s

2005年

作者： Conway francis j.

ISBN: (纸本)0821357050

Produced by t.e Urban Inst.t.t. for t.e Unit.d St.t.s Agency for Int.rnat.onal Development.and t.e World Bank Inst.t.t., t.e sourcebook gives access t. a wealt. of knowledge and informat.on on int.rgovernment.l finance issues in Cent.al and East.rn Europe by providing elect.onic links t. a large number of document. included on a CD-ROM. t.e document. discuss t.e basic concept. and principles, and describe t.e evolut.on of int.rgovernment.l finance in t.e count.ies of t.e region. t.e print.d sourcebook, which is also on t.e CD-ROM, serves as a roadmap t. help t.e reader explore t.e document. and locat. relevant.mat.rials. Int.rgovernment.l Fiscal Relat.ons in Cent.al and East.rn Europe is especially useful for policy analyst. and t.ainers int.rest.d in promot.ng an underst.nding of t.ose issues in t.eir count.ies. t.e sourcebook also provides direct.elect.onic links t. relevant.t.aining and educat.onal mat.rials, also included on t.e CD-ROM. Count.ies covered: Albania, Bulgaria, Czech Republic, Hungary, Lat.ia, Macedonia, Poland, and Romania

关键词： Int.rgovernment.l fiscal relat.ons

来源：畅想之星图书光盘版（南... 评论

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Light.Science & Applicat.ons) 2024年第1期13卷 13-22页

作者： Surendra B.Anant.araman jason Lynch Christ.pher E.St.vens Christ.pher Munley Chent.o Li jin Hou Hao Zhang Andrew t.rma t.omas Darlingt.n francis Coen Kevin Li Arka Majumdar Pjames Schuck Adit.a Mohit. Hayk Harut.unyan joshua R.Hendrickson Deep jariwala Depart.ent.of Elect.ical and Syst.ms Engineering University of PennsylvaniaPhiladelphiaPA19104USA KBR Inc. BeavercreekOH45431USA Air Force Research Laborat.ry Sensors DirectorateWright-Patterson Air Force BaseOH45433USA Depart.ent.of Physics University of WashingtonSeattleWA98195USA Depart.ent.of Physics Emory UniversityAtlantaGA30322USA Depart.ent.of Chemical and Biomolecular Engineering Rice UniversityHoustonTX77005USA Depart.ent.of Mat.rials Science and Nanoengineering Rice UniversityHoustonTX77005USA Applied Physics Program Smalley‐Curl InstituteRice UniversityHoustonTX77005USA Depart.ent.of Mechanical Engineering Columbia UniversityNew YorkNY10027USA Depart.ent.of Elect.ical and Comput.r Engineering University of WashingtonSeattleWA98195USA

Excit.ns,bound elect.on–hole pairs,in t.o-dimensional hybrid organic inorganic perovskit.s(2D HOIPs)are capable of forming hybrid light.mat.er st.t.s known as excit.n-polarit.ns(E–Ps)when t.e excit.nic medium is confined in an opt.cal *** t.e case of 2D HOIPs,t.ey can self-hybridize int. E–Ps at.specific t.icknesses of t.e HOIP cryst.ls t.at.form a resonant.opt.cal cavit. wit. t.e ***,t.e fundament.l propert.es of t.ese self-hybridized E–Ps in 2D HOIPs,including t.eir role in ult.afast.energy and/or charge t.ansfer at.int.rfaces,remain ***,we demonst.at. t.at.0.5µm t.ick 2D HOIP cryst.ls on Au subst.at.s are capable of support.ng mult.ple-orders of self-hybridized E–P *** E–Ps have high Q fact.rs(>100)and modulat. t.e opt.cal dispersion for t.e cryst.l t. enhance sub-gap absorpt.on and *** varying excit.t.on energy and ult.afast.measurement.,we also confirm energy t.ansfer from higher energy E–Ps t. lower energy E–***,we also demonst.at. t.at.E–Ps are capable of charge t.ansport.and t.ansfer at.*** findings provide new insight. int. charge and energy t.ansfer in E–Ps opening new opport.nit.es t.wards t.eir manipulat.on for polarit.nic devices.

关键词： charge polar excit.t.on

可得到高使用性能的一次压制／一次烧结生产工艺

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粉末冶金技术 2013年第1期31卷 62-68页

作者： francis j.Hanejko 韩凤麟 Hoeganaes Corporat.on

高密度粉末冶金零件(PM)意味着力学性能增高与零件的使用性能改进。虽然,高密度零件生产工艺不是新工艺(熔渗铜与二次压制/二次烧结工艺都已应用了许多年),但是最近10多年的发展,使着用一次压制/一次烧结工艺已可得到较高的密度。这些... 详细信息

高密度粉末冶金零件(PM)意味着力学性能增高与零件的使用性能改进。虽然,高密度零件生产工艺不是新工艺(熔渗铜与二次压制/二次烧结工艺都已应用了许多年),但是最近10多年的发展,使着用一次压制/一次烧结工艺已可得到较高的密度。这些先进的生产工艺叫做温压,其是一种利用有专利权的润滑剂与温模或温热粉末相结合的压制工艺。其在得到高密度烧结件的同时,仍然可保持粉末冶金固有的优势。可得到高密度的其它粉末冶金工艺还有模壁润滑与选择性表面致密化。对于每一种方法都进行了述评,并附带用资料证明了材料的性能与使用性能。

关键词：粉末冶金一次压制一次烧结温压高使用性能

Prevalence of Gender-Based Violence among Sex Workers in Bangui, Cent.al African Republic (CAR)

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Advances in Sexual Medicine 2024年第2期14卷 13-20页

作者： D. Mossoro-Kpinde Hermione S. C. Diemer Henri R. t.nde Nzengou Richard S. Siki francis j. D. D. t.kpa Bert.and Minist.y of Labor Employment Social Protection and Vocational Training Bangui Central African Republic Depart.ent.of Public Healt. Faculty of Health Sciences University of Bangui Bangui Central African Republic Communit. of t.e t.ee of Life Bangui Central African Republic t.aumat.logy Depart.ent The Central African Republic RCA Community Hospital Bangui Central African Republic

Background: Violence against.women has become an int.rnat.onal public healt. and human right. issue in recent.decades. t.e violence suffered by sex workers is of lit.le int.rest.for research, yet.it.const.t.t.s a major healt. and safet. problem. We propose t. assess t.e ext.nt.of t.e phenomenon of gender-based violence (GBV) among sex workers (SWs) in t.e cit. of Bangui in t.e CAR. Met.odology: t.is is a descript.ve cross-sect.onal epidemiological st.dy covering t.e period from july t. Oct.ber 2021 carried out.among SWs in Bangui, t.e capit.l of t.e CAR. Given t.at.t.e SWs associat.on had only 159 members in Bangui, an exhaust.ve sampling was ret.ined. Were included in t.e st.dy, any SW present.during t.e dat. collect.on period and having given t.eir writ.en consent. t.e paramet.rs st.died were socio-demographic charact.rist.cs: age, sex, residence, level of educat.on, marit.l st.t.s, and charact.rist.cs linked t. violence: t.e not.on of violence during t.eir professional act.vit., t.e t.pe of violence, t.e declarat.on and t.e declarat.on if necessary, t.e response and management.of t.is violence. t.e dat. collect.d was analyzed using Epi info version 7 soft.are. Result.: Of t.e 159 SWs t.at.count.d t.e associat.on, 108 had been included. t.e average age was 27.0 years wit. ext.emes of 14 and 46 years. t.e age groups of 25 t. 34 years were t.e most.represent.d (43.5%). Fift.-six SWs (51.9%) had reached t.e secondary level. Unemployed SWs were in t.e majorit. at.74.1%;Sixt.-six (66) SWs in our sample (61.1%) had already been vict.ms of violence during t.e exercise of t.eir act.vit. Sexual violence was t.e most.represent.d (28.5%) followed by verbal violence (22.4%). Sixt.-eight.(62.9%) want.d t. st.p t.e professional act.vit. of SWs and 93.1% would accept.anot.er income-generat.ng act.vit. in place of sex work. Conclusion: It.is necessary t. supervise SWs and prot.ct.t.em wit.in t.e framework of respect.for human right., rat.er t.an criminalizing t.em and t.e exploit

关键词： Female Sex Workers Gender-Based Violence Cent.al African Republic

Comparat.ve st.dy of t.e effect.of solvent. on t.e efficacy of neonicot.noid insect.cides against.malaria vect.r populat.ons across Africa

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Infect.ous Diseases of Povert. 2022年第2期11卷 23-31页

作者： Magellan t.houakui t.t.ane Assat.e Leon M.j.Mugenzi Benjamin D.Menze Daniel Nguifo-Nguet. Williams t.hapga jonat.an Kayondo francis Wat.enga Emile Zola Manzambi Michael Osae charles S.Wondji Cent.e for Research in Infect.ous Diseases(CRID) P.O.Box 13501YaoundeCameroon Parasit.logy and Ecology Laborat.ry Department of Animal Biology and PhysiologyFaculty of ScienceUniversity of Yaounde 1P.O.Box 812YaoundeCameroon Inst.t.t.Nat.onal de Recherche Biomedicale KinshasaDemocratic Republic of Congo Radiat.on Ent.mology and Pest.Management.Cent.e Biotechnology and Nuclear Agriculture Research InstituteGhana Atomic Energy CommissionP.O.Box LG80Legon-AccraGhana Depart.ent.of Vect.r Biology Liverpool School of Tropical MedicinePembroke PlaceLiverpool L35QAUK Int.rnat.onal Inst.t.t. of t.opical Agricult.re(IIt.) P.O.Box 2008YaoundeCameroon Ent.mology Depart.ent Uganda Virus Research Institute(UVRI)P.O.Box 49EntebbeUganda.

Background:New insect.cides wit. a novel mode of act.on such as neonicot.noids have recent.y been recommended for public healt. by *** monit.ring of such novel insect.cides requires a robust.prot.col t. monit.r t.e development.of resist.nce in nat.ral *** t.is st.dy,we comparat.vely used t.ree different.solvent. t. assess t.e suscept.bilit. of malaria vect.rs t. neonicot.noids across ***:Mosquit.es were collect.d from May t. july 2021 from t.ree agricult.ral set.ings in Cameroon(Njombe-Penja,Nkolondom,and Mangoum),t.e Democrat.c Republic of Congo(Ndjili-Brasserie),Ghana(Obuasi),and Uganda(Mayuge).Using t.e CDC bot.le t.st.we compared t.e effect.of t.ree different.solvent.(et.anol,acet.ne,MERO)on t.e efficacy of neonicot.noids against.nopheles gambiae *** addit.on,t.qMan assays were used t. genot.pe key pyret.roid-resist.nt.markers *** and odds rat.o based on Fisher exact.t.st.were used t. evaluat. pot.nt.al cross-resist.nce bet.een pyret.roids and ***:Lower mort.lit. was observed when using absolut. et.anol or acet.ne alone as solvent.for clot.ianidin(11.4-51.9% mort.lit. in Nkolondom,31.7-48.2% in Mangoum,34.6-56.1% in Mayuge,39.4-45.6% in Obuasi,83.7-89.3% in Congo and 71.1-95.9% in Njombe pendja)compared t. acet.ne+MERO for which 100% mort.lit. were observed for all t.e *** observat.ons were done for imidacloprid and *** assays(PBO,DEM and DEF)wit. clot.ianidin revealed a significant.increase of mort.lit. suggest.ng t.at.met.bolic resist.nce mechanisms are cont.ibut.ng t. t.e reduced suscept.bilit..A negat.ve associat.on was observed bet.een t.e L1014F-kdr mut.t.on and clot.ianidin resist.nce wit. a great.r frequency of homozygot. resist.nt.mosquit.es among t.e dead t.an among survivors(OR=0.5;P=0.02).However,t.e I114t.GSt.2 was in cont.ast.significant.y associat.d wit. a great.r abilit. t. survive clot.ianidin wit. a higher frequency of homozygot. resist.nt.among surv

关键词： Malaria Anopheles Insect.cide resist.nce Neonicot.noids Clot.ianidin Cross-resist.nce