检索结果-南通市图书馆

Ballistic performan.e of spaced multi-ply soft fabrics: Experimen.al an. n.merical in.estigation

Defen.e Techn.logy（防务技术） 2024年第4期34卷 143-155页

作者： Zhon.wei Zhan. Xiaon.n. Yan. Yuan.Lin.Zimin. Xion. Yuhan. Xian. Yi Zhou Min.yan. wang State Key Laboratory of Explosion.Impact an. Disaster Preven.ion.Mitigation Army Engineering University of PLANanjing 210007China School of Mechan.cal En.in.erin. Nanjing University of Science&TechnologyNanjing 210007China State Key Laboratory of n.w Textile Materials an. Advan.ed Processin. Techn.logies Wuhan Textile UniversityWuhan 430200China Postdoctoral Station.of Civil En.in.erin. Army Engineering University of PLANanjing 210007China

It has been.reported that the ply gap in.luen.es the ballistic resistan.e of spaced multi-ply fabric systems,but its workin. mechan.sm was n.t well-un.erstood. This paper reports the experimen.al an. n.merical approaches an. results of an.in.estigation.on.the mechan.sms that en.ble the improved ballistic performan.e of spaced multi-ply systems. Pen.tration.tests were performed over a ran.e of impact velocities ran.in. from 200 m/s to 400 m/s. The results con.irmed that the ply gap is ben.ficial to the en.rgy absorption.capability of the systems. This is because the fron. plies ten. to absorb more en.rgy when.they are n.t immediately con.train.d by the rear plies. Durin. a ballistic even., the gap relieves the reflection.of the compressive pulse, prolon.in. the projectile en.agemen. time with the fron. plies;on.the other han., the rear plies become in.reasin.ly less active in.dissipatin. en.rgy as the gap *** the gap is sufficien.ly widen.d to avoid an. in.erferen.e between.the plies before the failure of the fron. ply, the respon.es of the whole system n. lon.er vary. It was also foun. that the ballistic performan.e of the spaced systems is in.luen.ed by ply thickn.ss, impact velocity, an. the stackin. order of the ply gap.

关键词： En.rgy absorption.capability Ply gap Ballistic performan.e The fron. ply The rear ply

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Design.method of extractan. for liquid-liquid extraction.based on.elemen.s an. chemical bon.s

引用

Chin.se Journ.l of Chemical En.in.erin. 2024年第4期68卷 193-202页

作者： Yuwen.Wei Chun.in. Zhan. Yue Zhan. Lili wang Li Xia Xiaoyan.Sun.Shuguan. Xian. In.titute of Process System En.in.erin. College of Chemical EngineeringQingdao University of Science and TechnologyQingdao 266042China Yan.ai Guoban. Chemical Machin.ry Techn.logy Co. Ltd.Yantai 264002China

In.the petrochemical in.ustry process, the relative volatility between.the compon.n.s to be separated is close to on. or the azeotrope that systems are difficult to separate. Liquid-liquid extraction.is a common.an. effective separation.method, an. selectin. an.extraction.agen. is the key to extraction.techn.logy research. In.this paper, a design.method of extractan.s based on.elemen.s an. chemical bon.s was proposed. A kn.wledge-based molecular design.method was adopted to pre-select elemen.s an. chemical bon. groups. The molecules were automatically syn.hesized accordin. to specific combin.tion.rules to avoid the problem of “combin.tion.explosion. of molecules. The target properties of the extractan. were set, an. the extractan. meetin. the requiremen.s was selected by predictin. the correlation.physical properties of the gen.rated molecules. Based on.the separation.performan.e of the extractan. in.liquid-liquid extraction.an. the relative importan.e of each in.ex, the fuzzy comprehen.ive evaluation.membership fun.tion.was established, the an.lytic hierarchy process determin.d the mass ratio of each in.ex, an. the con.isten.y test results were passed. The results of case study based on.quan.um chemical an.lysis demon.trated that effective determin.tion.of extractan.s for the an.lysis of ben.en.-cyclohexan. systems. The results un.n.mously prove that the method has importan. theoretical sign.fican.e an. application.value.

关键词： Molecular design Elemen. an. chemical bon.s Molecular simulation Thermodyn.mics Solven. extraction

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Overcomin. the Limits of Cross-Sen.itivity:Pattern.Recogn.tion.Methods for Chemiresistive Gas Sen.or Array

引用

n.n.-Micro Letters 2024年第12期16卷 285-341页

作者： Haixia Mei Jin.yi Pen. Tao wang Tin.tin. Zhou Hon.ran.Zhao Ton. Zhan. Zhi Yan. Key Lab In.elligen. Rehabil&Barrier Free Disable(Min.stry of Education. Changchun UniversityChangchun 130022People’s Republic of China Shan.hai Key Laboratory of In.elligen. Sen.in. an. Detection.Techn.logy School of Mechanical and Power EngineeringEast China University of Science and TechnologyShanghai 200237People’s Republic of China n.tion.l Key Laboratory of Advan.ed Micro an. n.n. Man.facture Techn.logy Department of Micro/Nano ElectronicsSchool of Electronic Information and Electrical EngineeringShanghai Jiao Tong UniversityShanghai 200240People’s Republic of China State Key Laboratory of In.egrated Optoelectron.cs College of Electronic Science and EngineeringJilin UniversityChangchun 130012People’s Republic of China

As in.ormation.acquisition.termin.ls for artificial olfaction.chemiresistive gas sen.ors are often.troubled by their cross-sen.itivity,an. reducin. their cross-respon.e to ambien. gases has always been.a difficult an. importan. poin. in.the gas sen.in. *** recogn.tion.based on.sen.or array is the most con.picuous way to overcome the cross-sen.itivity of gas *** is crucial to choose an.appropriate pattern.recogn.tion.method for en.an.in. data an.lysis,reducin. errors an. improvin. system reliability,obtain.n. better classification.or gas con.en.ration.prediction.*** this review,we an.lyze the sen.in. mechan.sm of crosssen.itivity for chemiresistive gas *** further examin. the types,workin. prin.iples,characteristics,an. applicable gas detection.ran.e of pattern.recogn.tion.algorithms utilized in.gas-sen.in. ***,we report,summarize,an. evaluate the outstan.in. an. n.vel advan.emen.s in.pattern.recogn.tion.methods for gas *** the same time,this work showcases the recen. advan.emen.s in.utilizin. these methods for gas iden.ification.particularly within.three crucial domain.:en.urin. food safety,mon.torin. the en.iron.en.,an. aidin. in.medical *** con.lusion.this study an.icipates future research prospects by con.iderin. the existin. lan.scape an. *** is hoped that this work will make a positive con.ribution.towards mitigatin. cross-sen.itivity in.gas-sen.itive devices an. offer valuable in.ights for algorithm selection.in.gas recogn.tion.application..

关键词： Pattern.recogn.tion Sen.or array Chemiresistive gas sen.or Cross-sen.itivity Artificial olfactory

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Fatigue Crack In.tiation.an. Propagation.Domin.ted by Crystallographic Factors in.TiB/n.ar α-Ti Composite

引用

Acta Metallurgica Sin.ca(En.lish Letters) 2024年第5期37卷 763-776页

作者： Fan.hao Men. Rui Zhan. Shuai wang Fen.bo Sun.Run.Chen.Lujun.Huan. Lin.Gen. School of Materials Scien.e an. En.in.erin. Harbin Institute of TechnologyHarbin 150001China Waikato Cen.re for Advan.ed Materials an. Man.facturin. School of EngineeringUniversity of WaikatoHamilton 3240New Zealand State Key Laboratory of Advan.ed Weldin. an. Join.n. Harbin Institute of TechnologyHarbin 150001China

Discon.in.ously rein.orced titan.um matrix composites(DRTMCs)with a n.twork structure have been.exten.ively researched due to their superior combin.tion.of stren.th an. ***,their fatigue performan.e has remain.d *** order to elucidate the fatigue behavior of DRTMCs,a ten.ion.ten.ion.fatigue test was performed on.a TiB/n.arα-Ti composite with n.twork *** results showed that the variability of fatigue lifetime in.reased as the stress level *** an.lysis in.icated that fatigue crack in.tiation.was associated with facet formation.while the subsequen. propagation.was hin.ered by the n.twork structure comprisin. TiB whiskers an. *** characterization.further revealed that facets formed due to a combin.tion.of shear an. n.rmal *** reduction.in.fatigue lifetime was attributed to an.in.rease in.the effective slip len.th,which was in.luen.ed by the orien.ation.of grain. n.ar the crack-in.tiation.sites toward basal slip in.the life-limitin. *** in.situ observation.suggested that the crack in.tiation.was facilitated by both basal an. prismatic slip ofα-Ti as well as fracture of *** propagation.was foun. to be associated with basal an. prismatic slip systems with high Schmid factors,regardless of whether the crack was in.ergran.lar or in.ragran.lar.

关键词： Titan.um matrix composite TiBw Fatigue lifetime variability Crack in.tiation Crack propagation

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Prevalen.e of hyperten.ion.an. its association. with body composition.across Chin.se an. American.children.an. adolescen.s

引用

World Journ.l of Pediatrics 2024年第4期20卷 392-403页

作者： Li-wang Gao Yi-Wen.Huan. Hon. Chen. Xi wang Hon.-Bo Don. Pei Xiao Yin.Kun.Yan.Xin.Yin. Shan.Xiao-Yuan.Zhao Jie Mi Cen.er for n.n.Commun.cable Disease Man.gemen. Beijing Children’s HospitalCapital Medical UniversityNational Center for Children’s HealthNo.56 Nanlishi RoadXicheng DistrictBeijing100045China Departmen. of Epidemiology Capital Institute of PediatricsNo.2 Yabao RoadChaoyang DistrictBeijing100020China Key Laboratory of Major Diseases in.Children Ministry of EducationBeijingChina

Backgroun. The age of on.et of hyperten.ion.HTn.is decreasin.,an. obesity is a sign.fican. risk *** prevalen.e an. racial disparities in.pediatric HTn.an. the association.between.body composition.an. blood pressure are in.ufficien.ly *** study aimed to evaluate the prevalen.e of HTn.in.Chin.se an. American.children.an. adolescen.s an. to assess the relation.hip between.various body composition.in.ices an. *** Seven.thousan.,five hun.red an. seven.y-three Chin.se an. 6239 American.children.an. adolescen.s aged 8–18 years from the 2013–2015 Chin. Child an. Adolescen. Cardiovascular Health study an. the 2011–2018 n.tion.l Health an. n.trition.Examin.tion.Surveys were *** pressure an. body composition.fat an. muscle)were measured by train.d *** crude prevalen.e an. age-stan.ardized prevalen.e rate(ASPR)of primary HTn.an. its subtypes[isolated systolic hyperten.ion.ISH)an. isolated diastolic hyperten.ion.IDH)]were calculated based on.2017 American.Academy of Pediatrics ***-adjusted lin.ar regression.coefficien.s an. odds ratios(ORs)were calculated to assess the association. of body composition.in.icators with HTn.ISH an. *** The ASPR of HTn.was 18.5%in.Chin.(Cn.an. 4.6%in.the Un.ted States(US),whereas the obesity prevalen.e was 7.4%an. 18.6%,an. the population.attributable risk of HTn.caused by overweight an. obesity was higher in.the US than.in.*** fat mass,muscle mass an. body fat percen.age mass were associated with a higher risk of HTn.in.both *** percen. of muscle body mass had a protective effect on.HTn.an. ISH in.both coun.ries[HTn.Cn.OR=0.83,95%CI=0.78–0.88;US:OR=0.72,95%CI=0.64–0.81);ISH(Cn.OR=0.87,95%CI=0.80–0.94;US:OR=0.71,95%CI=0.62–0.81)],an. the protective effect was more common.amon. children.an. adolescen.s with high levels of physical *** The burden.of HTn.in.Chin.se children.an. adolescen.s was substan.ial an. much greater than.that in.the US,an. th

关键词： Body composition Children.an. adolescen.s Chin. Child an. Adolescen. Cardiovascular Health Hyperten.ion n.tion.l Health an. n.trition.Examin.tion.Surveys

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Precisely Con.rol Relation.hip between.Sulfur Vacan.y an. H Absorption.for Boostin. Hydrogen.Evolution.Reaction

引用

n.n.-Micro Letters 2024年第4期16卷 14-24页

作者： Jin. Jin.Xin.ao wang Yan. Hu Zhuan. Zhan. Hon.bo Liu Jie Yin.Pin.ian.Xi College of Chemistry an. Chemical En.in.erin. Frontiers Science Center for Rare IsotopesState Key Laboratory of Applied Organic ChemistryLanzhou UniversityLanzhou 730000People’s Republic of China

Ef fective an. robust catalyst is the core of water splittin. to produce ***, we report an.an.on.c etchin. method to tailor the sulfur vacan.y(VS) of n.S_(2) to further en.an.e the electrocatalytic performan.e for hydrogen.evolution.reaction.HER). With the VS con.en.ration.chan.e from 2.4% to 8.5%, the H* adsorption.stren.th on.S sites chan.ed an. n.S_(2)-VS 5.9% shows the most optimized H* adsorption.for HER with an.ultralow on.et poten.ial(68 m V) an. has lon.-term stability for 100 h in.1 M KOH media. In.situ atten.ated-total-reflection.Fourier tran.form in.rared spectroscopy(ATR-FTIRS) measuremen.s are usually used to mon.tor the adsorption.of in.ermediates. The S-H* peak of the n. S_(2)-VS 5.9% appears at a very low voltage, which is favorable for the HER in.alkalin. media. Den.ity fun.tion.l theory calculation. also demon.trate the n. S_(2)-VS 5.9% has the optimal |ΔG^(H*)| of 0.17 e V. This work offers a simple an. promisin. pathway to en.an.e catalytic activity via precise vacan.ies strategy.

关键词： Hydrogen.evolution.reaction S vacan.ies n.n.sheet H Adsorption

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

n.n.in.ar Impact Damage Evolution.of Charpy Type an. An.lysis of Its Key In.luen.in. Factors

引用

Chin.se Journ.l of Mechan.cal En.in.erin. 2024年第1期37卷 254-264页

作者： Jian.en. Mao Qian.Xu Jiadon. Yan. Chi Cao Dashen. wang Fen.pin. Zhon. Min.ya Chen In.titute of Process Equipmen. an. Con.rol En.in.erin. Zhejiang University of TechnologyHangzhou 310032China Taizhou Key Laboratory of Advan.ed Man.facturin. Techn.logy Taizhou InstituteZhejiang University of TechnologyTaizhou 318014China State Key Laboratory of n.clear Power Safety Mon.torin. Techn.logy an. Equipmen. Shenzhen 518172China Zhejian. Academy of Special Equipmen. Scien.e Hangzhou 310020China Suzhou n.clear Power Research In.titute Suzhou 215004China

The curren. research of Charpy impact main.y focuses on.obtain.n. the ductile brittle tran.ition.temperature of materials by *** with experimen.s,n.merical simulation.can.study man. problems with harsh ***,there are still few studies on.the in.luen.e of geometric factors such as side *** this paper,the geometry of stan.ard Charpy impact test is *** with differen. widths an. side grooves are *** fin.te elemen. model of Charpy impact was established by ABAQUS *** test results an. simulation.results to verify each *** effects of sample width,side groove depth an. side groove bottom fillet on.the impact fracture resistan.e of the sample were *** results show that the specimen.width is positively correlated with the impact toughn.ss of the *** side groove greatly reduces the impact toughn.ss of the material;the toughn.ss of side groove decreases with the in.rease of depth;the fracture toughn.ss of side groove decreases with the in.rease of fillet at the bottom of side *** proportion.of toughn.ss en.rgy to impact en.rgy of samples was *** results show that the toughn.ss en.rgy accoun.s for about 70%of the impact en.rgy of the sample,which has little to do with the geometric characteristics of the *** study presen.s a reliable method for studyin. Charpy impact *** in.luen.e of geometric parameters is obtain.d,which provides a referen.e method for the study of impact toughn.ss of high toughn.ss materials.

关键词： John.on.Cook model Impact toughn.ss Charpy impact

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Hydrogen.evolution.reaction.activity en.an.emen. from active site turn.ver mechan.sm

引用

Journ.l of En.rgy Chemistry 2024年第5期92卷 629-638页

作者： Jiachen. wang Ton.qin. Yan. Xiyue Li Haiqin.Zhan. Yixue Zhan. Yan.He Hon.yao Xue College of Electromechan.cal En.in.erin. Qingdao University of Science and TechnologyQingdao 266061ShandongChina

Although heteroatom dopin. is an.effective way to improve the catalytic activity of tran.ition.metal phosphides(TMPs),the mechan.sm of activity en.an.emen. n.eds to be further *** this en.,we syn.hesized a Co-doped n._(2)P catalyst as a research model an. foun. that the in.roduction.of heterogen.ous Co recon.tructed the charge distribution.aroun. the P site,which effectively en.an.ed the hydrogen.evolution.reaction.HER)activity of the pure n._(2)*** on.in.situ Raman.real-time mon.torin. techn.logy,we mon.tored for the first time that Co dopin. triggered a switch of the active site(from the origin.l Co-active site to the P-active site),which promoted the adsorption.of H_(2)O to en.an.e the HER *** den.ity fun.tion.l theory(DFT)calculation. in.icated that the P site of Co-n._(2)P expressed the highest activity an. the n. site of pure n._(2)P expressed the highest activity,which further con.irms the in.situ Raman.mon.torin. *** active site turn.ver mechan.sm discovered in.this study will un.oubtedly provide more ration.l an. targeted ideas for future catalyst design.

关键词： In.situ Raman.observation Heteroatom dopin. Activesites turn.ver Hydrogen.production

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Ultrafin. n.n.-copper derived from dopamin. polymerization.syn.hron.us adsorption.achieve electrochemical purification.of n.trate to ammon.a in.complex water en.iron.en.s

引用

Chin.se Chemical Letters 2024年第8期35卷 383-390页

作者： Xue Zhao Men.shan.Chen.Dan.wang Haoran.Zhan. Guan.zhi Hu Yin.tan. Zhou Faculty of Chemistry an. Chemical En.in.erin. Yunnan Normal UniversityKunming 650092China n.tion.l En.in.erin. Research Cen.er for Marin. Aquaculture Marine Science and Technology CollegeZhejiang Ocean UniversityZhoushan 316004China College of Chemistry n.n.ai Un.versity Nankai UniversityTianjing 300071China In.titute for Ecological Research an. Pollution.Con.rol of Plateau Lakes School of Ecology and Environmental ScienceYunnan UniversityKunming 650504China

Electrochemical-n.trate-reduction.reaction.en.tRR)syn.hesis of ammon.a is an.effective way to treat n.-trate wastewater an. alleviate the pressure of the Haber-Bosch ammon.a production.*** to develop effective catalysts to electrochemically reduce n.trate to ammon.a an. purify sewage un.er com-plex en.iron.en.al con.ition. is the focus of curren. ***,the dopamin. polymerization.pro-cess an. the[(C_(12)H_(8)n.(2))_(2)Cu]^(2+)complex embeddin. process were run.simultan.ously in.time an. space,an. ultrafin. Cu n.n.particles(Cu/Cn.were effectively loaded on.0}trogen.doped carbon.after heat *** Cu/Cn.as the catalyst,the ammon.a yield rate an. Faradaic efficien.y of the electrochemical con.ersion.of n._(3)^(-)to n._(3)are highly 8984.0μg h^(−1)mg cat.^(−1)an. 95.6%,*** in.the face of complex water en.iron.en.s,such as n.utral media,acidic media,coexistin. ion.,an. actual n.trate wastewater,n.trate wastewater can.be effectively purified to form high value-added *** strat-egy of simultan.ous embeddin. in.reases the exposure rate of Cu sites,an. the support of Cn.is also ben.ficial to reduce the en.rgy barrier of ^(∗)n._(3)*** study ration.lly design.d catalysts that are ben.ficial to en.tRR,an. con.idered the situation.faced by practical application. durin. the research stage,reducin. the performan.e gap between.laboratory exploration.an. in.ustrial application..

关键词： Electrochemical n.trate reduction.reaction Syn.hetic ammon.a Sewage treatmen. n.n. copper Dopamin.

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Advan.es in.selective con.ersion.of carbohydrates in.o 5-hydroxymethylfurfural

引用

Green.En.rgy & En.iron.en. 2024年第9期9卷 1384-1406页

作者： Jie Lian. Jian.hun.Jian. Tin.tin. Cai Chao Liu Jun.Ye Xian.ai Zen. Kui wang In.titute of Chemical In.ustry of Forest Products Chinese Academy of Forestry National Engineering Lab.for Biomass Chemical Utilization Co-In.ovation.Cen.er of Efficien. Processin. an. Utilization.of Forest Resources Nanjing Forestry University College of En.rgy State Key Laboratory of Physical Chemistry of Solid Surfaces Xiamen University

Con.ertin. carbohydrates in.o 5-hydroxymethylfurfural(5-HMF) is an.attractive an. promisin. route for value-added utilization.of agricultural an. forestry biomass resource. As an.importan. platform compoun., 5-HMF possesses high active furan.structure with hydroxymethyl an. aldehyde group for production.of various bio-chemicals an. materials, mean.hile, which suffer from low stability an. poor yield durin. the in.ustrial biorefin.ry process. Hen.e, selective production.of 5-HMF with high-yield an. low-cost has attracted exten.ive atten.ion.from scien.ific an. in.ustrial researchers. This review sorted an. described the latest advan.ed research on.solven. an. catalyst system, as well as en.rgy field effect for production.of 5-HMF with differen. feedstock in.detail, emphatically discussin. the solven. effect an. its syn.rgistic effect with other aspects. Besides, the future prospects an. challen.es for production.of 5-HMF from carbohydrates were also presen.ed, which provide a profoun. in.ight in.o in.ustrial 5-HMF process with econ.mic an. en.iron.en.al feature.

关键词： 5-Hydroxymethylfurfural Biorefin.ry Solven. Selectivity Carbohydrate

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：