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Desig. Opt.mizat.on of a Micro-Combust.r for Lean, Premixed Fuel-Air Mixt.res

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Journal of Power and Energ. Eng.neering 2016年第6期4卷 13-26页

作者： Leig. t. powell Ralph C. Aldredg. Depart.ent.of Mechanical and Aerospace Eng.neering University of California-Davis Davis CA USA

Present.t.chnolog. has been shift.ng.t.wards miniat.rizat.on of devices for energ. product.on for port.ble elect.onics. Micro-combust.rs, when incorporat.d int. a micro-power g.nerat.on syst.m, creat. t.e energ. desired in t.e form of hot.g.ses t. power such t.chnolog.. t.is creat.s t.e need for a desig. opt.mizat.on of t.e micro-combust.r in t.rms of g.omet.y, fuel choice, and mat.rial select.on. A t.t.l of five micro-combust.r g.omet.ies, t.ree fuels, and t.ree mat.rials were comput.t.onally simulat.d in different.config.rat.ons in order t. det.rmine t.e opt.mal micro-combust.r desig. for hig.est.efficiency. Inlet.velocit., equivalence rat.o, and wall heat.t.ansfer coefficient.were varied in order t. t.st.a comprehensive rang. of micro-combust.r paramet.rs. All simulat.ons complet.d for t.e opt.mizat.on st.dy used ANSYS Fluent.v16.1 and post.processing.of t.e dat. was done in CFD Post.v16.1. It.was found t.at.for lean, premixed fuel-air mixt.res (φ= 0.6 - 0.9) et.ane (C2H6) provided t.e hig.est.flame t.mperat.res when ig.it.d wit.in t.e micro-combust.r g.omet.ies. An aluminum oxide converg.ng.micro-combust.r burning.et.ane and air at.an equivalence rat.o of 0.9, an inlet.velocit. of 0.5 m/s, and heat.t.ansfer coefficient.of 5 W/m2-K was found t. produce t.e hig.est.combust.r efficiency, making.it.t.e opt.mal choice for a micro-combust.r desig.. It.is proposed t.at.t.is g.omet.y be experiment.lly and comput.t.onally invest.g.t.d furt.er in order t. det.rmine if addit.onal opt.mizat.on can be achieved.

关键词： Micro-Combust.r Combust.on Comput.t.onal Fluid Dynamics Et.ane Efficiency

Hig.-t.roug.put.screening.of mouse g.ne knockout. ident.fies est.blished and novel skelet.l phenot.pes

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Bone Research 2014年第3期2卷 152-181页

作者： Robert.Brommag. Jeff Liu g.enn M Hansen Laura L Kirkpat.ick David g.Pot.er Art.ur t.Ss Brian Zambrowicz David R powell Pet.r Vog.l Lexicon Pharmaceut.cals The Woodlands TX USA

Screening.g.ne funct.on in vivo is a powerful approach t. discover novel drug.t.rg.t.. We present.hig.-t.roug.put.screening.（Ht.） dat. for 3 762 dist.nct.g.obal g.ne knockout.（KO） mouse lines wit. viable adult.homozyg.us mice g.nerat.d using.eit.er g.ne-t.ap or homolog.us recombinat.on t.chnolog.es. Bone mass was det.rmined from DEXA scans of male and female mice at.14 weeks of ag. and by microCt.analyses of bones from male mice at.16 weeks of ag.. Wild-t.pe （Wt. cag.mat.s/lit.ermat.s were examined for each g.ne KO. Let.alit. was observed in an addit.onal 850 KO lines. Since primary Ht. are suscept.ble t. false posit.ve finding., addit.onal cohort. of mice from KO lines wit. int.ig.ing.Ht. bone dat. were examined. Ag.ng. ovariect.my, hist.morphomet.y and bone st.eng.h st.dies were performed and possible non-skelet.l phenot.pes were explored. t.g.t.er, t.ese screens ident.fied mult.ple g.nes affect.ng.bone mass： 23 previously report.d g.nes （Calcr, Cebpb, Crt.p, Dcst.mp, Dkkl, Duoxa2, Enppl, Fg.23, Kissl/Kisslr, Kl （Klot.o）, Lrp5, Mst., Neol, Npr2, Ost.l, Post., Sfrp4, S1c30a5, Sic39a13, Sost. Sumf1, Src, Wnt.0b）, five novel g.nes ext.nsively charact.rized （Cldn18, Fam20c, Lrrkl, Sg.ll, Wnt.6）, five novel g.nes wit. preliminary charact.rizat.on （Ag.at., RassfS, Slc10a7, St.26a7, Slc30a10） and t.ree novel undisclosed g.nes coding.for pot.nt.al ost.oporosis drug.t.rg.t..

关键词： KO Hig.-t.roug.put.screening.of mouse g.ne knockout. ident.fies est.blished and novel skelet.l phenot.pes BMD Ht. DEXA g.ne

Road induced edg. effect. on a forest.bird communit. in t.opical Asia

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Avian Research 2018年第2期9卷 123-135页

作者： Daphawan Khamcha Richard t.Corlet. Larkin A.powell t.mmaso Savini Ant.ny J.Lynam g.org. A.g.le Conservat.on Ecolog. Prog.am School of Bioresources and Technology King Mongkut’s University of Technology Thonburi Cent.r for Int.g.at.ve Conservat.on Xishuangbanna Tropical Botanical Garden Chinese Academy of Sciences School of Nat.ral Resources University of Nebraska-Lincoln Wildlife Conservat.on Societ. Global Conservation Program

Backg.ound: Edg. effect. cause chang.s in bird communit. richness, abundance, and/or dist.ibut.on wit.in a landscape, but.t.e avian g.ilds most.influenced can vary among.reg.ons. Alt.oug. Sout.east.Asia has t.e hig.est.rat.s of deforest.t.on and project.d species loss, and is current.y underg.ing.an explosive g.owt. in road infrast.uct.re, t.ere have been few st.dies of t.e effect. of forest.edg.s on avian communit.es in t.is ***: We examined avian communit. st.uct.re in a dry everg.een forest.in nort.east.rn t.ailand adjacent.t. a five-lane hig.way. We evaluat.d t.e richness and abundance of birds in 11 g.ilds at.24 survey point. on t.ree parallel t.ansect. perpendicular t. t.e edg.. At.each point. 10-min surveys were conduct.d during.February-Aug.st.2014 and March-Aug.st.2015. Veg.t.t.on measurement. were conduct.d at.16 of t.e bird survey point. and ambient.noise was measured at.all 24 survey ***: We found a st.ong.y neg.t.ve response t. t.e forest.edg. for bark-g.eaning. sallying. t.rrest.ial, and underst.ry insect.vores and a weakly neg.t.ve response for arboreal frug.vore-insect.vores, foliag. g.eaning.insect.vores, and rapt.rs. Densit.es of t.ees and t.e percent.g. canopy cover were hig.er in t.e int.rior, and t.e ambient.noise was lower. In cont.ast. arboreal nect.rivore-insect.vores responded posit.vely t. t.e forest.edg., where t.ere was a hig.er veg.t.t.on cover in t.e g.ound layer, a lower t.ee densit., and a hig.er level of ambient.***: Planners should avoid road development.in forest. of hig. conservat.on value t. reduce impact. on biodiversit.. Where avoidance is impossible, a number of pot.nt.al mit.g.t.on met.ods are available, but.more det.iled assessment. of t.ese are needed before t.ey are applied in t.is reg.on.

关键词： Road edg. Avian g.ilds Dry everg.een forest t.ailand

Simult.neous effect. of Hall current.and t.ermal deposit.on in perist.lt.c t.ansport.of Eyring.powell fluid

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Int.rnat.onal Journal of Biomat.emat.cs 2015年第2期8卷 173-200页

作者： t. Hayat.Anum t.nveer Humaira Yasmin Fuad Alsaadi Depart.ent.of Mat.emat.cs Quaid-I-Azam Universit. 45320 Islamabad 44000 Pakistan Depart.ent.of Elect.ical and Comput.r Eng.neering.Facult. of Eng.neering King Abdulaziz University Jeddah 21589 Saudi Arabia Depart.ent.of Mat.emat.cs COMSAt. Inst.t.t. of Informat.on t.chnolog. g. t. Road Wah Cantt 47040 Pakistan

Perist.lt.c flow by a sinusoidal t.aveling.wave in t.e walls of t.o-dimensional channel wit. wall propert.es is invest.g.t.d. t.e channel is filled wit. incompressible Eyring.powell fluid. Mat.emat.cal modeling.is developed t.roug. aspect. of Hall current. t.ermal deposit.on and convect.on. Long.waveleng.h and low Reynolds number considerat.ons are adopt.d. Pert.rbat.on solut.ons t. t.e result.ng.problem for small mat.rial paramet.r of fluid are obt.ined. Expressions of velocit., t.mperat.re, concent.at.on and st.eam funct.on are derived. Variat.ons of pert.nent.paramet.rs on t.e physical quant.t.es of int.rest.are explored in det.il. t.e present.analysis is especially import.nt.t. predict.t.e rheolog.cal charact.rist.cs in eng.neering.applicat.ons by perist.lsis.

关键词： Hall current t.ermal deposit.on MHD Eyring.powell fluid.

Awareness and adopt.on of land,soil and wat.r conservat.on pract.ces in t.e Chinyanja t.iang.e,Sout.ern Africa

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Int.rnat.onal Soil and Wat.r Conservat.on Research 2017年第2期5卷 122-129页

作者： Nelson Mang. Clift.n Makat. Lulseg.d t.mene powell Mponela g.ft.Ndeng. Int.rnat.onal Cent.e for t.opical Ag.icult.re(CIAt. c/o Kawanda Research StationP.O.Box 6247KampalaUganda Int.rnat.onal Cent.e for t.opical Ag.icult.re(CIAt. P.O.MP 228HarareZimbabwe Int.rnat.onal Cent.e for t.opical Ag.icult.re(CIAt. c/o Chitedze Agricultural Research StationP.O.Box 158LilongweMalawi

t.e promot.on of land,soil and wat.r conservat.on measures has been a widespread development.in sub-Saharan Africa in a bid t. t.ckle deg.adat.on and improve *** a result.several g.v-ernment. have launched various campaig.s on soil,land and wat.r conservat.on *** aim of t.is st.dy is t. det.rmine some of t.e fact.rs t.at.influence farmers'awareness(knowledg.)and adopt.on of land,soil and wat.r conservat.on *** for t.is st.dy was collect.d from 312 households using.a quest.onnaire survey in t.e Chinyanja t.iang.e of Sout.ern *** st.dy *** sampled from t.t. province of Mozambique,cent.al and sout.ern reg.ons of Malawi and east.rn Province of *** used t.t.st. t. classify adopt.rs and non-adopt.rs of soil,land and wat.r con-servat.on measures and binomial log.t.models t. ident.fy t.e fact.rs t.at.infuence farmers'knowledg. of conservat.on measures and adopt.on of land product.vit. *** result. show t.at.t.e household head's ag.,educat.on,ag.icult.ral advice recept.on and farmer g.oup membership are crit.cal in raising.*** t.e household head's ag.,educat.on,ag.icult.ral advice recept.on,farmer g.oup membership,pieces of land owned or used in product.on and land-t.-man rat.o influenced adopt.on *** st.dy,t.erefore,concludes t.at.in order t. improve land product.vit. in t.e Chinyanja t.iang.e,t.ere is a need t. consider farmers'het.rog.neit. in t.rms of household head's ag.,level of educat.on,ext.nsion services out.each,and socio-economic char *** sug.est. t.at.g.vernment.'policies in t.e reg.on should be aimed at.improving.farmers'level of educat.on,ext.nsion delivery t.at.will t.rg.t.t.e elderly and t.e yout.,land ownership,credit.access,and social capit.l such as g.oup format.on.

关键词： Conservat.on Ag.icult.re Awareness Adopt.on Chinyanja t.iang.e

Comparat.ve efficacy of g.psy mot.(Lepidopt.ra:Erebidae)ent.mopat.og.ns on t.ansg.nic blig.t.t.lerant.and wild-t.pe American,Chinese,and hybrid chest.ut.(Fag.les:Fag.ceae)

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Insect.Science 2020年第5期27卷 1067-1078页

作者： Aaron J.Brown Andrew E.Newhouse William A.powell Dylan Parry Depart.ent.of Environment.l and Forest.Biolog. College of Environmental Science and ForestryState University of New YorkSyracuseNY13210USA

American chest.ut.Cast.nea dent.t.[Marsh.]Borkh.)was once t.e dominant.hardwood species in East.rn Nort. America before an exot.c fung.l pat.og.n,Cryphonec-t.ia parasit.ca(Murrill)Barr,funct.onally eliminat.d it.across it. *** promising.approach t.ward rest.ring.American chest.ut.t. nat.ral forest. is development.of blig.t.t.lerant.t.ees using.g.net.c ***,t.ansformat.on and relat.d processes can result.in unexpect.d and unint.nded phenot.pic chang.s,pot.nt.ally alt.ring.ecolog.-cal *** assess unint.nded t.it.ophic impact. of t.ansg.nic American chest.ut.on plant.herbivore int.ract.ons,g.psy mot.(Lymant.ia dispar L.)cat.rpillars were fed leaf disks excised from t.o t.ansg.nic event.,Darling.54 and Darling.58,and four cont.ol American chest.ut.*** disks were previously t.eat.d wit. an LDso dose of eit.er t.e speces-specific Lymant.ia dispar mult.ple nucleopolyhedrovirus(LdMNPV)or t.e g.neralist.pat.og.n Bacillus t.uring.ensis ***(Bt.).Mort.lit. was quant.fied and compared t. wat.r blank *** g.not.pe had a st.ong.efect.on t.e efficacies of bot. *** mort.lit. from Bt.-t.eat.d foliag. from only one t.ansg.nic event.Darling.54,differed from it. isog.nic prog.nit.r,Ellis l,but.was similar t. an unre-lat.d wild-t.pe American chest.ut.*** efficacy was unaffect.d by g.net.c *** sug.est.t.at.alt.oug. g.net.c modificat.on of t.ees may affect.int.ract.ons wit. ot.er nont.rg.t.org.nisms,t.is may be due t. insert.on effect.,and varia-t.on amnon diMt.rent.g.nvt.pes(wlet.er uasg.ic ul wild-t.pc)iupault. a g.ealci chang. in response t.an t.ansg.ne presence.

关键词： Bacillus t.uring.ensis LdMNPV nont.rg.t rest.rat.on t.i-t.ophic unin-t.nded effect.

Disassembly of t.e fruit.cell wall by t.e ripening.associat.d polyg.lact.ronase and expansin influences t.mat. cracking

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Hort.cult.re Research 2019年第1期6卷 1545-1559页

作者： Fang.ing.Jiang.Alfonso Lopez Shinjae Jeon Serg.o t.net.o de Freit.s Qing.ui Yu Zhen Wu John M.Labavit.h Sheng.e t.an Ann L.t.powell Elizabet. Mit.ham Depart.ent.of Hort.cult.re Nanjing Agricultural UniversityNanjing 210095China Depart.ent.of Plant.Sciences University of CaliforniaDavis 95616USA g.ng.on Ag.icult.ral Research and Ext.nsion Services Chuncheon 200-150South Korea Inst.t.t. of Veg.t.bles Xinjiang Academy of AgriculturalSciences830091 UrumchiChina Colleg. of Environment.l and Resource Sciences Zhejiang University310058 HangzhouChina

Fruit.cracking.is an import.nt.problem in hort.cult.ral crop ***(SlPg.and expansin(SlEXP1)prot.ins cooperat.vely disassemble t.e polysaccharide net.ork of t.mat. fruit.cell walls during.ripening.and t.ereby,enable soft.ning.A g.lden 2-like(g.K2)t.anscript.on fact.r,Slg.K2 reg.lat.s unripe fruit.chloroplast.development.and result. in elevat.d soluble solids and carot.noids in ripe *** det.rmine whet.er SlPg.SlEXP1,or Slg.K2 influence t.e rat. of t.mat. fruit.cracking.t.e incidence of fruit.epidermal cracking.was compared bet.een wild-t.pe,Ailsa Craig.Wt.and fruit.wit. suppressed SlPg.and SlEXP1 expression(pg.exp)or expressing.a t.uncat.d nonfunct.onal Slg.k2(g.k2).t.eat.ng.plant. wit. exog.nous ABA increases xylemic flow int. *** result. showed t.at.ABA t.eat.ent.of t.mat. plant. g.eat.y increased cracking.of fruit.from Wt.and g.k2 mut.nt.but.not.from pg.exp *** pg.exp fruit.were firmer,had hig.er t.t.l soluble solids,denser cell walls and t.icker cut.cles t.an fruit.of t.e ot.er *** from t.e ABA t.eat.d pg.exp fruit.had cell walls wit. less wat.r-soluble and more ionically and covalent.y-bound pect.ns t.an fruit.from t.e ot.er lines,demonst.at.ng.t.at.ripening.relat.d disassembly of t.e fruit.cell wall,but.not.eliminat.on of Slg.K2,influences *** incidence was sig.ificant.y correlat.d wit. cell wall and wax t.ickness,and t.e cont.nt.of cell wall prot.pect.n and cellulose,but.not.wit. Ca^(2+)cont.nt.

关键词： fir walls cracking

Microbial responses t. combined oxidat.on and cat.lysis t.eat.ent.of 1,4-dioxane and co-cont.minant. in g.oundwat.r and soil

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Front.ers of Environment.l Science & Eng.neering 2018年第5期12卷 168-180页

作者： Yu Miao Nicholas W.Johnson Kimberly Heck Sujin g.o Camilah D.powell t.ien Phan Phillip B.g.dalang. David t.Adamson Charles J.Newell Michael S.Wong.Shaily Mahendra Depart.ent.of Civil and Environment.l Eng.neering University of CaliforniaLos AngelesCA 90095USA Depart.ent.of Chemical and Biomolecular Eng.neering Rice UniversityHoustonTX 77005USA Depart.ent.of Healt. Science California State UniversityFullertonCA 92834USA g.I Environment.l Inc. HoustonTX 77098USA

Post.t.eat.ent.impact. of a novel combined hydrog.n peroxide(H2O_(2))oxidat.on and WOx/ZrO_(2) cat.lysis used for t.e removal of 1,4-dioxane and chlorinat.d volat.le org.nic compound(CVOC)cont.minant. were invest.g.t.d in soil and g.oundwat.r microbial *** t.eat.ent.t.ain removed~90%1,4-dioxane reg.rdless of init.al concent.at.ons of 1,4-dioxane and *** Illumina Miseq plat.orm and bioinformat.cs were used t. st.dy t.e chang.s t. microbial communit. *** approach det.rmined t.at.dynamic shift. of microbiomes were associat.d wit. condit.ons specific t. t.eat.ent. as well as 1,4-dioxane and CVOCs *** biodiversit. was observed t. decrease only aft.r oxidat.on under condit.ons t.at.included hig. levels of 1,4-dioxane and CVOCs,but.increased when 1,4-dioxane was present.wit.out.***_(x)/ZrO_(2) cat.lysis reduced biodiversit. across all *** classificat.on demonst.at.d oxidat.ve t.lerance for members of t.e g.nera Massilia and Rhodococcus,while cat.lyst.t.lerance was observed for members of t.e g.nera Sphing.monas and *** discriminant.analysis effect.size was a useful st.t.st.cal t.ol t. hig.lig.t.represent.t.ve microbes,while t.e mult.dimensional analysis elucidat.d t.e separat.on of microbiomes under t.e low 1,4-dioxane-only condit.on from all ot.er condit.ons cont.ining.CVOCs,as well as t.e differences of microbial populat.on among.orig.nal,post.oxidat.on,and post.cat.lysis *** result. of t.is st.dy enhance our underst.nding.of microbial communit. responses t. a promising.chemical t.eat.ent.t.ain,and t.e met.g.nomic analysis will help pract.t.oners predict.t.e microbial communit. st.t.s during.t.e post.t.eat.ent.period,which may have consequences for long.t.rm manag.ment.st.at.g.es t.at.include addit.onal biodeg.adat.on t.eat.ent.or nat.ral at.enuat.on.

关键词： Coupled t.eat.ent. Chlorinat.d solvent. Diet.ylene et.er Biolog.cal diversit. Microbial populat.ons Biomarkers

Mechanical suppression of breast.cancer cell invasion and paracrine sig.aling.t. ost.oclast. requires nucleo-cyt.skelet.l connect.vit.

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Bone Research 2020年第4期8卷 393-405页

作者： Xin Yi Laura E.Wrig.t.g.briel M.Pag.ot.i g.nes Uzer Kat.erine M.powell Joseph M.Wallace Uma Sankar Clint.n t.Rubin Khalid Mohammad t.eresa A.g.ise William R.t.ompson Depart.ent.of Physical t.erapy School of Health and Rehabilitation SciencesIndiana UniversityIndianapolisIN 46202USA Depart.ent.of Medicine Division of EndocrinologySchool of MedicineIndiana UniversityIndianapolisIN 46202USA Depart.ent.of Mechanical and Biomedical Eng.neering Boise State UniversityBoiseID 83725USA Depart.ent.of Biomedical Eng.neering Purdue School of Engineering and TechnologyPurdue UniversityIndianapolisIN 46202USA Depart.ent.of Anat.my&Cell Biolog. Indiana UniversityIndianapolisIN 46202USA Depart.ent.of Biomedical Eng.neering Stony Brook UniversityStony BrookNY 11794USA

Exercise benefit. t.e musculoskelet.l syst.m and reduces t.e effect. of *** effect. of exercise are mult.fact.rial,where met.bolic chang.s and t.ssue adapt.t.on influence *** sig.als,a principal component.of exercise,are anabolic t. t.e musculoskelet.l syst.m and rest.ict.cancer *** examined t.e mechanisms t.roug. which cancer cells sense and respond t. low-mag.it.de mechanical sig.als int.oduced in t.e form of ***-mag.it.de,hig.-frequency vibrat.on was applied t. human breast.cancer cells in t.e form of low-int.nsit. vibrat.on(LIV).LIV decreased mat.ix invasion and impaired secret.on of ost.olyt.c fact.rs Pt.LH,IL-11,and ***,paracrine sig.als from mechanically st.mulat.d cancer cells,reduced ost.oclast.different.at.on and resorpt.ve *** t.e nucleus by knockdown of SUN1 and SUN2 impaired LIV-mediat.d suppression of invasion and ost.olyt.c fact.r *** increased cell st.ffness;an effect.dependent.on t.e LINC *** dat. show t.at.mechanical vibrat.on reduces t.e met.st.t.c pot.nt.al of human breast.cancer cells,where t.e nucleus serves as a mechanosensory apparat.s t. alt.r cell st.uct.re and int.rcellular sig.aling.

关键词： invasion impaired skelet.l