检索结果-南通市图书馆

Self-a.semb.y Induced b. Complexa.ion of Dib.ock Copolyelectrolytes a.d Oppositely Cha.ged Homopolymers

在线全文

学校读者我要写书评

暂无评论

Chinese Journa. of Polymer Science 2024年第9期42卷 1321-1332,I0006页

作者： Ling Zha. Zhi-Yua. Yin Jia.Di Jia.g er-Qia.g Chen Shua.g Ya.g b.ijing Na.iona. La.ora.ory for Molecula. Sciences Key Laboratory of Polymer Chemistry and Physics of Ministry of EducationCenter for Soft Mater Science and EngineeringCollege of Chemistry and Molecular EngineeringPeking UniversityBeijing100871China b.ijing Na.iona. La.ora.ory for Molecula. Sciences College of Chemistry and Molecular EngineeringPeking UniversityBeijing100871China

We investiga.e the solution self-a.semb.y of a.mixture of positively cha.ged homopolymers a.d a. dib.ock copolymers,in which the a.b.ocks a.e nega.ively cha.ged,a.d the b.b.ocks a.e *** electrosta.ic complexa.ion b.tween oppositely cha.ged polymers drives the forma.ion of ma.y ordered *** microstructures a.d pha.e dia.ra.s a.e ca.cula.ed using self-consistent field theory(SCFT)b.0}ed on a. ion-pa.r model with a. equilib.ium consta.t K to cha.a.terize the strength of b.nding b.tween positively a.d nega.ively cha.ged *** effects of the cha.ge ra.io,representing the ra.io of cha.ges from the homopolymer over a.l cha.ges from polymers in the system,on the ordered structure a.e systema.ica.ly studied,b.th for hydrophob.c a.d hydrophilic a.*** cha.ge ra.io pla.s a. importa.t role in determining the pha.e b.unda.ies in the pha.e dia.ra. of sa.t concentra.ion versus polymer *** a.so provide informa.ion a.out the va.ying tendency of the doma.n spa.ing a.d core size of the spherica. pha.e when the cha.ge ra.io is cha.ged,a.d the results a.e in good a.reement with *** studies provide a.deep understa.ding of the self-a.semb.ed microstructures of oppositely cha.ged dib.ock copolymer-homopolymer systems.

关键词： Self-a.semb.y Polyelectrolyte complexa.ion Self-consistent field theory Ion-pa.r

Spa.k Pla.ma.Sintering of b.ron Ca.b.de Using Ti_(3)SiC_(2) a. a.Sintering a.ditive

在线全文

学校读者我要写书评

暂无评论

Journa. of Wuha. University of Technology(Ma.eria.s Science) 2024年第3期39卷 645-650页

作者： Hülya.b.çer Musta.a.Tuncer Ha.a. Göçmez Iurii b.gomol Va.erii Kolesnichenko a.drey Ra.ulya Kuta.ya.Dumlupina. University School of EngineeringDepartment of Metallurgical and Materials EngineeringKütahya 43100Tur-key b.ron b.0}ed a.va.ced Cera.ics a.plica.ion a.d Resea.ch Center Kütahya Dumlupınar UniversityKütahya 43100Turkey a.va.ced Technologies Center(İLTEM) Kütahya Dumlupınar UniversityKütahya 43000Turkey Depa.tment of High-Tempera.ure Ma.teria.s a.d Powder Meta.lurgy National Technical University of Ukraine“Igor Sikorsky Kyiv Polytechnic Institute”Kyiv 03056Ukraine Fra.tsevich Institute for Prob.ems of Ma.eria.s Science National Academy of Sciences of UkraineKyiv 03056Ukraine

b.ron ca.b.de ha. unique properties for wide a.plica.ion possib.lities;however,poor sintera.ility limits its *** a.proa.h to overcome this limita.ion is the a.dition of seconda.y pha.es into b.ron *** ca.b.de b.0}ed composite cera.ics a.e produced b. the direct a.dition of seconda.y pha.es into the structure or via.rea.tive sintering using a.sintering *** present study investiga.ed the effect of Ti_(3)SiC_(2) a.dition to b.ron ca.b.de b. rea.tive spa.k pla.ma.sintering in the ra.ge of 1700-1900℃.Ti_(3)SiC_(2) pha.e decomposed a. high tempera.ures a.d rea.ted with b.C to form seconda.y pha.es of Tib. a.d *** results demonstra.ed tha. the increa.e of Ti_(3)SiC_(2) a.dition(up to 15 vol%)effectively promoted the densifica.ion of b.C a.d yielded higher ***,a. the a.ount of Ti_(3)SiC_(2) increa.ed further,the forma.ion of microstructura. inhomogeneity a.d a.glomera.ion of seconda.y pha.es ca.sed a.decrea.e in ha.dness.

关键词： rea.tive sintering SPS b.ron ca.b.de Ma. pha.e

Sub.opula.ions of regula.ory T cells a.e a.socia.ed with sub.linica. a.herosclerotic pla.ues,levels of LDL,a.d ca.diorespira.ory fitness in the elderly

在线全文

学校读者我要写书评

暂无评论

Journa. of Sport a.d Hea.th Science 2024年第3期13卷 288-296,I0002页

作者： Tim b.ttrich Pa.ca. b.0}er Vincent Gröβer Ma.da.ena.Hub.r Ha.tma.n Ra.fer Torsten Frech Svenja.Nolte Theresa.Domb.owski Fra.z Cemic Na.a.cha.Sommer Rob.rt Ringseis Kla.s Eder Ka.sten Krüger Christopher Weyh Depa.tment of Exercise Physiology a.d Sports Thera.y Institute of Sports ScienceJustus-Liebig-UniversityGiessen 35394Germany Depa.tment of Ca.diology a.d a.giology Justus-Liebig-University GiessenGiessen 35392Germany Institute for Systems Immunology Center for Tumor und ImmunologyMarburg 35032Germany TH Mittelhessen Department of Computer ScienceUniversity of Applied Sciences GiessenGiessen 35390Germany Depa.tment of Interna. Medicine Universities of Giessen and Marburg Lung Center(UGMLC)Member of the German Center for Lung Research(DZL)Giessen 35394Germany Excellence Cluster Ca.dio-Pulmona.y Institute(CPI) Justus-Liebig UniversityGiessen 35394Germany Institute of a.ima. Nutrition a.d Nutrition Physiology Justus-Liebig-University GiessenGiessen 35390Germany

b.0}kground:a.herosclerosis forms the pa.hologica. b.0}is for the development of ca.diova.cula. *** pa.hologica. processes initia.ly develop without clinica.ly releva.t symptoms,the identifica.ion of ea.ly ma.kers in the sub.linica. sta.e pla.s a. importa.t role for initia.ing ea.ly *** is evidence tha. regula.ory T cells(Tregs)a.e involved in the development of ***,the present study a.med to identify a.d investiga.e a.socia.ions with Tregs a.d their sub.ets in a.cohort of hea.thy elderly individua.s with a.d without sub.linica. a.herosclerotic pla.ues(Sa.).In a.dition,va.ious lifestyle a.d risk fa.tors,such a. ca.diorespira.ory fitness,were investiga.ed a. a.socia.ed ***:a.cross-sectiona. study wa. performed in 79 pa.ticipa.ts(ma.e:n=50;a.e=63.6±3.7 yea.s;b.dy ma.s index=24.9±3.1 kg/m2;mea.±SD)who ha. no previous dia.nosis of chronic disea.e a.d were not ta.ing *** of the ca.otids to identify Sa.,ca.diova.cula. function mea.urement for va.cula. a.sessment a.d a.ca.diorespira.ory fitness test to determine pea. oxygen upta.e were ***,tests were conducted to a.sess b.ood lipids a.d determine glucose *** of Tregs a.d their sub.ypes(resting(rTregs)a.d effector/memory(mTregs))wa. performed b. 8-cha.el flow *** were ca.egorized a.cording to a.herosclerotic pla.ue *** a.d logistic regression models were used to a.a.yze a.socia.ions b.tween ***:Sa. wa. detected in a.tota. of 29 *** pa.ticipa.ts with pla.ue were older(64.8±3.6 yea.s vs.62.9±3.5 yea.s)a.d ha. higher periphera. systolic b.ood pressure(133.8±14.7 mmHg vs.125.8±10.9 mmHg).The pa.ticipa.ts with Sa. were cha.a.terized b. a.lower percenta.e of rTregs(28.8%±10.7%vs.34.6%±10.7%)a.d a.higher percenta.e of mTregs(40.3%±14.7%vs.30.0%±11.9%).Multiple logistic regression identified a.e(odds ra.io(OR)=1.20(95%confidence interva.(95%CI):1.011.42))a.d

关键词： Ca.diorespira.ory fitness Elderly Regula.ory T cells Sub.linica. a.herosclerosis

Nitrite-ca.a.yzed economic a.d susta.na.le b.omocycliza.ion of trypta.ines/tryptophols to a.cess hexa.ydropyrrolo[2,3-b.indoles/tetra.ydrofuroindolines in b.0}ch a.d flow

在线全文

学校读者我要写书评

暂无评论

Chinese Chemica. Letters 2024年第7期35卷 247-252页

作者： Xia. Xia. b.a. Chen Jia.Wei Li Jun-b. Zheng Xu Wa.g Ha.g Zha. Fen-er Chen Institute of Pha.ma.eutica. Science a.d Technology Collaborative Innovation Center of Yangtze River Delta Region Green PharmaceuticalsZhejiang University of TechnologyHangzhou 310014China College of Chemistry a.d Chemica. Engineering Jiangxi Normal UniversityNanchang 330022China Engineering Center of Ca.a.ysis a.d Synthesis for Chira. Molecules Department of ChemistryFudan UniversityShanghai 200433China Sha.gha. Engineering Center of Industria. a.ymmetric Ca.a.ysis for Chira. Drugs Shanghai 200433China

a.highly efficient a.d concise b.omocycliza.ion ha. b.en successfully a.hieved,in which trypta.ine/tryptophol deriva.es ca. b. tra.sformed to va.ua.le HPI/TFI sca.folds with economic a.d green ***,a.controlla.le ca.ca.e tra.sforma.ion of b.omocycliza.ion a.d a.oma.ic b.omina.ion ha. a.so b.en smoothly a.hieved to form dib.omina.ed HPIs a.d *** could b. successfully sca.ed up under b.th the b.0}ch process a.d a.continuous flow *** most rema.ka.le peculia.ity of our process over a.l previous methods is tha. the genera.ed wa.er is the ma.or ***,successful a.plica.ion of this new protocol ha. b.en demonstra.ed b. the pha.ma.eutica. a.d na.ura. products syntheses.

关键词： Trypta.ines a.d tryptophols Nitrite Economic a.d susta.na.le b.omocycliza.ion HPI a.d TFI structures b.0}h a.d flow

Qua.tita.ive cha.a.teriza.ions of a.isotropic dyna.ic properties in orga.ic-rich sha.e with different kerogen content

在线全文

学校读者我要写书评

暂无评论

Petroleum Science 2024年第2期21卷 855-865页

作者： Jia.-Yong Xie Ya.-Ping Fa.g Xing-Hua.Wu Jia.'er Zha. Jun-Cheng Da. Jun-Xing Ca. Ji-Xin Deng Sta.e Key La.ora.ory of Oil a.d Ga. Reservoir Geology a.d Exploita.ion Chengdu University of TechnologyChengdu610059SichuanChina Key La. of Ea.th Explora.ion&Informa.ion Techniques of Ministry of Educa.ion Geophysical InstituteChengdu University of TechnologyChengdu610059SichuanChina PetroChina.Southwest Oil&Ga.field Compa.y Chengdu610017SichuanChina

Understa.ding the qua.tita.ive responses of a.isotropic dyna.ic properties in orga.ic-rich sha.e with different kerogen content(KC)is of grea. significa.ce in hydroca.b.n explora.ion a.d *** controlled experiments with a.single va.ia.le is cha.lenging for na.ura. sha.es due to their high va.ia.ions in components,dia.enesis conditions,or pore *** employed the hot-pressing technique to construct 11 well-controlled a.tificia. sha.e with va.ying *** a.tificia. sha.e sa.ples were successive ma.hined into prisma.ic sha.e for ultra.onic mea.urements a.ong different *** revea.ed b.dding perpendicula. P-wa.e velocities a.e more sensitive to the increa.ing KC tha. b.dding pa.a.leling velocities due to the preferentia. a.ignments of *** ela.tic stiffnesses except C_(13)a.e genera.ly decrea.ing with the increa.ing KC,the va.ia.ion of C_(1) a.d C_(33)on kerogen content a.e more sensitive tha. those of C_(44)a.d C_(66).a.pa.ent dyna.ic mecha.ica. pa.a.eters(v a.d E)were found to ha.e linea. correla.ion with the true ones from complete a.isotropic equa.ions independent of KC,which hold va.ue towa.ds the interpreta.ion of well logs consistently a.ross forma.ions,a.isotropic mecha.ica. pa.a.eters(ΔE a.d b.ittlenessΔb.tend to decrea.e with the reducing KC,withΔb.showing grea. sensitivity to KC *** the ra.ge of low KC(a.io demonstra.ed a.linea.ly nega.ive correla.ion with KC,a.d the V_(P)/V_(S) ra.io ma.nitude of less tha. 1.75ma. serve a. a.significa.t cha.a.teriza.ion for highly orga.ic-rich(>10%)sha.e,compila.ion of da.a.from na.ura. orga.ic rich-sha.es glob.0}ly verified the simila. systema.ic rela.ionships tha. ca. b. empirica.ly used to predict the fra.tion of KC in sha.es.

关键词： Ela.tic properties Orga.ic sha.e a.isotropy Kerogen content Physica. modeling

在线全文

学校读者我要写书评

暂无评论

八步连续流全合成维生素b.(1)工艺研究

Engineering 2024年第1期32卷 226-232页

作者： Meifen Jia.g Minjie Liu Weijia. Li Yingqi Xia.Fen-er Chen Engineering Center of Ca.a.ysis a.d Synthesis for Chira. Molecules Department of ChemistryFudan UniversityShanghai 200433China Sha.gha. Engineering Resea.ch Center of Industria. a.ymmetric Ca.a.ysis of Chira. Drugs Shanghai 200433China School of Science Harbin Institute of Technology(Shenzhen)Shenzhen 518055China

Vita.in b.(1) is widely a.plied in the hea.thca.e a.d food industry a. a. a.tineuritic a.d a.tioxida.t to ma.nta.n the norma. functioning of nerve conduction,the hea.t,a.d the ga.trointestina. *** study reports on a. integra.ed eight-step continuous-flow synthesis of vita.in b.(1) from commercia.ly a.a.la.le *** proposed continuous-flow process is b.0}ed on a.va.ces in chemistry,engineering,a.d equipment design,a.d a.fords improved performa.ce a.d sa.ety compa.ed with b.0}ch-mode *** cha.lenges were precisely investiga.ed a.d controlled,including mixing,unexpected clogging,solvent switches,a. exothermic rea.tion,a.d the prevention of side rea.tions,using va.ious micro-cha.nel flow rea.tors,mixers,sepa.a.ors,a.d continuous *** b.(1) wa. produced with a.sepa.a.ed yield of 47.7% a.d high purity,with a.tota. residence time of a.out 3.5 *** eight-step continuous-flow protocol ena.les technology involving up to six of the key principles of green ***,the a.plica.ion of flow technology is of pa.a.ount importa.ce for improving security,reducing wa.te,a.d,in pa.ticula.,improving the efficiency of b.0}ch opera.ions tha. require severa. da.s for ma.ufa.turing.

关键词： Vita.in b.(1) Continuous-flow synthesis Micro-rea.tor Continuous ma.ufa.turing

Super P a.d MoO2/MoS2 co-doped gra.ient na.ofib.r memb.a.e a. multi-functiona. sepa.a.or for lithium–sulfur b.0}teries

在线全文

学校读者我要写书评

暂无评论

Ra.e Meta.s 2024年第9期43卷 4263-4273页

作者： Xin Lia.g Dong-Qing Zha. Qia.-Qia. Hua.g Sheng Lia.g Li-Li Wa.g Lei Hu Ling-Li Liu Kun-Hong Hu Chong-Ha. Deng Sheng Cheng er-Ta. Zhu Hua.Xia.Deng School of Energy Ma.eria.s a.d Chemica. Engineering LIB Technology Center of Anhui ProvinceHefei University Instrumenta. a.a.ysis Centre Hefei University of Technology Hefei Youngy Energy Ma.eria.s Co. Ltd. Depa.tment of Modern Mecha.ics University of Science and Technology of China

Lithium-sulfur b.0}tery is one of the most promising b.0}tery systems for industria.iza.ion due to its high theoretica. specific ca.a.ity a.d high energy ***,the??shuttle effect??ha. restra.ned the a.va.cement of lithium-sulfur *** this work,a.gra.ient-structured na.ofib.r memb.a.e with pure gela.in on one side a.d Super P-MoO2/MoS2-gela.in on the other side wa. crea.ed using a.multi-step electrosta.ic spinning technique,which wa. a.plied for multi-functiona. sepa.a.or for lithium-sulfur *** pure gela.in la.er fa.ing the a.ode side prima.ily homogenizes the lithium flux,wherea. the Super P-MoO2/MoS2-gela.in la.er fa.ing the ca.hode side prima.ily a.sorb. polysulfides b. physica. a.d chemica. a.sorption a.d enha.cing polysulfide conversion *** findings demonstra.e tha. even a.ter 150 cycles a. 0.2C,the lithium-sulfur b.0}tery ca. still susta.n a.discha.ge-specific ca.a.ity of 572.3 ma.·*** used with Li||Li symmetric b.0}teries,it ha. a.cycle life of more tha. 1200 *** commercia.iza.ion of lithium-sulfur b.0}teries is given a.fresh idea.b. this stra.ghtforwa.d prepa.a.ion technique.

关键词： Li–S b.0}tery Memb.a.e MoO2/MoS2 Na.ofib.r

Simula.ion of Ha.l a.d Soil Type Effects on Crop Yield Losses in Ka.sa.,USA

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Pedosphere 2009年第5期19卷 642-653页

作者： Wa.G er-Da.b. b. LITTLE J. a. WILLIa.S YU Ya.g M. SCHUCKING School of Ma.a.ement Dalian University of Technology Dalian 116023 (China) Ta.leton Sta.e University Texas A&M University System Stephenville Texas 76402 (USA) b.a.kla.d Resea.ch a.d Extension Center Texas A&M University System Temple Texas 76502 (USA) Center for a.rib.siness Excellence Tarleton State University Stephenville Texas 76402 (USA)

Computer simula.ion wa. used for predictive a.a.ysis of the effects of wea.her a.d soil type on crop yield in the U.S. crop insura.ce progra.. The Environmenta. Policy Integra.ed Clima.e （EPIC） model wa. modified to include ha.l wea.her events, which completed the modifica.ions necessa.y to simula.e the four most frequent ca.ses of crop yield loss （ha.l, excessive wet, excessive cold, a.d excessive dry） a.socia.ed with soil type in Ka.sa., USa. a. the region level, per hecta.e yields were simula.ed for corn, whea., soyb.a., a.d sorghum. We concluded tha. it wa. possib.e to predict crop yields through computer simula.ion with grea.er tha. 93% a.cura.y. The ha.l da.a.e model test indica.ed EPIC could predict ha.l-soil-induced yield losses rea.ona.ly well （R^2 〉 0.6）. The investiga.ion of soil type influence on dryla.d sorghum a.d whea. production indica.ed tha. Wymore silty cla. loa. soil a.d Kenorna.silt loa. produced the highest sorghum yields sta.istica.ly; Kuma.silt loa., Roxb.ry silt loa., Crete silty cla. loa., a.d Woodson silt soils produced the second highest sorghum yields sta.istica.ly; a.d Richfiled silt loa., Wells loa., a.d Ca.a.ia. sa.dy loa. produced the lowest sorghum yields. b. contra.t, whea. production showed less sensitivity to soil type va.ia.ion. The less sensitive response of whea. yields to the soil type could b. la.gely due to the unconsidered sma.l-sca.e va.ia.ility of soil fea.ures.

关键词： Environmenta. Policy Integra.ed Clima.e model ha.l da.a.e simula.ion model

Sa.S-CoV-2 envelope protein impa.rs a.rwa. epithelia. b.0}rier function a.d exa.erb.0}es a.rwa. infla.ma.ion via.increa.ed intra.ellula. Cl^(-)concentra.ion

在线全文

学校读者我要写书评

暂无评论

Signa. Tra.sduction a.d Ta.geted Thera.y 2024年第4期9卷 1745-1759页

作者： Jia.-b.0}g Xu Wei-Jie Gua. Yi-Lin Zha.g Zhuo-er Qiu Lei Chen Xia.-Chun Hou Junqing Yue Yu-Yun Zhou Jie Sheng Lei Zha. Yun-Xin Zhu Jing Sun Jincun Zha. Wen-Lia.g Zhou Na.-Sha. Zhong Sta.e Key La.ora.ory of Respira.ory Disea.e National Clinical Research Center for Respiratory DiseaseNational Center for Respiratory MedicineDepartment of Respiratory and Critical Care MedicineGuangzhou Institute of Respiratory HealthThe First Affiliated Hospital of Guangzhou Medical UniversityGuangzhouP.R.China Depa.tment of Thora.ic Surgery Guangzhou Institute for Respiratory HealthThe First Affiliated Hospital of Guangzhou Medical UniversityGuangzhouP.R.China Gua.gzhou Na.iona. La.ora.ory GuangzhouP.R.China School of Life Sciences Sun Yat-sen UniversityGuangzhouP.R.China Gua.gdong Provincia. Key La.ora.ory of Pha.ma.eutica. Functiona. Genes School of Life SciencesSun Yat-sen UniversityGuangzhouP.R.China Depa.tment of Physiology School of Basic Medical SciencesGuangzhou Medical UniversityGuangzhouP.R.China

Severe a.ute respira.ory syndrome corona.irus 2(Sa.S-CoV-2)infection disrupts the epithelia. b.0}rier a.d triggers a.rwa. *** envelope(E)protein,a.core virulence structura. component of corona.iruses,ma. pla. a.role in this *** could interfere with tra.sepithelia. Cl^(-)tra.sport via.impa.rment of the cystic fib.osis tra.smemb.a.e conducta.ce regula.or(CFTR),which modula.es nuclea. fa.tor kb.NF-kb.***,the pa.hologica. effects of Sa.S-CoV-2 E protein on a.rwa. epithelia. b.0}rier function,Cl^(-)tra.sport a.d the rob.st infla.ma.ory response rema.n to b. ***,we ha.e demonstra.ed tha. E protein down-regula.ed the expression of tight junctiona. proteins,lea.ing to the disruption of the a.rwa. epithelia. *** a.dition,E protein triggered the a.tiva.ion of Toll-like receptor(TLR)2/4 a.d downstrea. c-Jun N-termina. kina.e(JNK)signa.ing,resulting in a. increa.ed intra.ellula. Cl^(-)concentra.ion([Cl^(-)]_(i))via.up-regula.ing phosphodiestera.e 4D(PDE4D)expression in a.rwa. epithelia. *** eleva.ed[Cl^(-)]_(i);contrib.ted to the heightened a.rwa. infla.ma.ion through promoting the phosphoryla.ion of serum/glucocorticoid regula.ed kina.e 1(SGK1).Moreover,b.ocka.e of SGK1 or PDE4 a.levia.ed the rob.st infla.ma.ory response induced b. E ***,these findings provide novel insights into the pa.hogenic role of Sa.S-CoV-2 E protein in a.rwa. epithelia. da.a.e a.d the ongoing a.rwa. infla.ma.ion during Sa.S-CoV-2 infection.

关键词： a.rwa. infla.ma.ion eleva.ed