检索结果-南通市图书馆

An Aerial–Wall Robotic Ins.ct That Can Land, Climb, and Take Off from Vertical s.rfaces

Res.arch 2024年第1期2023卷 149-163页

作者： Qian Li Haoze Li Huan shen Yangguang Yu Haoran He Xincheng Feng Yi s.n Zhiyuan Mao Guangming Chen Zongjun Tian Lida shen Xiangming Zheng Aihong Ji College of Mechanical and Electrical Engineering Nanjing University of Aeronautics and AstronauticsNanjingChina College of Aeros.ace Engineering Nanjing University of Aeronautics and AstronauticsNanjingChina s.ate Key Laboratory of Mechanics.and Control for Aeros.ace s.ructures Nanjing University of Aeronautics and AstronauticsNanjingChina

Ins.cts.that can perform flapping-wing flight,climb on a wall,and s.itch s.oothly between the 2 locomotion regimes.provide us.with excellent biomimetic ***,very few biomimetic robots.can perform complex locomotion tas.s.that combine the 2 abilities.of climbing and ***,we des.ribe an aerial–wall amphibious.robot that is.s.lf-contained for flying and climbing,and that can s.amles.ly move between the air and *** adopts.a flapping/rotor hybrid power layout,which realizes.not only efficient and controllable flight in the air but als. attachment to,and climbing on,the vertical wall through a s.nergis.ic combination of the aerodynamic negative pres.ure ads.rption of the rotor power and a climbing mechanis. with bionic adhes.on *** the bas.s.of the attachment mechanis. of ins.ct foot pads.the prepared biomimetic adhes.ve materials.of the robot can be applied to various.types.of wall s.rfaces.to achieve s.able *** longitudinal axis.layout des.gn of the rotor dynamics.and control s.rategy realize a unique cros.-domain movement during the flying–climbing trans.tion,which has.important implications.in unders.anding the takeoff and landing of ***,it enables.the robot to cros. the air–wall boundary in 0.4 s.landing),and cros. the wall–air boundary in 0.7 s.taking off).The aerial–wall amphibious.robot expands.the working s.ace of traditional flying and climbing robots.which can pave the way for future robots.that can perform autonomous.vis.al monitoring,human s.arch and res.ue,and tracking tas.s.in complex air–wall environments.

关键词： robot s.oothly Vertical

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

Failure proces. and monitoring data of an extra-large lands.ide at the Nanfen Open-pit Iron Mine

引用

Journal of Mountain s.ience 2024年第9期21卷 2918-2938页

作者： WANG Jingxiang YANG Xiaojie TAO Zhigang HE Manchao shen Fuxin s.ate Key Laboratory for Tunnel Engineering China University of Mining and Technology(Beijing)Beijing 100083China s.hool of Mechanics.and Civil Engineering China University of Mining and Technology(Beijing)Beijing 100083China

An extra-large lands.ide occurred on June 19,2021,on the footwall s.ope of the Nanfen Open-pit Iron Mine in Liaoning province,China,with a volume of approximately 1.2×107 *** elucidate the caus.tive factors.development proces.,and des.ructive mechanis.s.of this.catas.rophic lands.ide,comprehens.ve field tes.s.inves.igations.and laboratory experiments.were ***,the heavily weathered rock mas. of the s.ope was.inters.cted by faults.and joint fis.ures.facilitating rainwater ***,the lands.ide contained a s.bs.antial clay mineral with highly developed micro-cracks.and micro-pores.exhibiting s.rong water-abs.rption *** mois.ure content increas.d,the rock mas. underwent s.ftening,res.lting in reduced ***,continuous.heavy rainfall infiltration amplified the s.ope's.weight,diminis.ing the weak s.ructural plane's.s.rength,leading to fracture propagation,s.ip plane penetration,and extens.ve tens.le-s.ear and uplift failure of the *** s.udy highlights.poor geological conditions.as.the decis.ve factor for this.lands.ide,with continuous.heavy rainfall as.the triggering ***,advers. environmental factors.pers.s.ently affect the lands.ide,and deformation and failure continue to ***,it is.imperative to urgently implement integrated meas.res.encompas.ing s.ope reinforcement,monitoring,and early-warning to real-time monitor the lands.ide's.deformation and deep mechanical evolution trends.

关键词： Lands.ide development proces. Extra-large lands.ide Heavy rainfall Failure characteris.ics Ins.ability mechanis. Lands.ide monitoring and early-warning

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

Trans.ers. momentum balance of dijets.in Xe+Xe collis.ons.at the LHC

引用

Nuclear s.ience and Techniques 2024年第7期35卷 137-146页

作者： Yao Li s.u-Wan shen s. Wang Ben-Wei Zhang Key Laboratory of Quark&Lepton phys.cs.MOE)and Ins.itute of particle phys.cs Central China Normal UniversityWuhan430079China College of s.ience China Three Gorges UniversityYichang443002China Center for As.ronomy and s.ace s.iences.and Ins.itute of Modern phys.cs China Three Gorges UniversityYichang443002China Guangdong-Hong Kong Joint Laboratory of Quantum Matter Guangdong Provincial Key Laboratory of Nuclear ScienceSouthern Nuclear Science Computing CenterSouth China Normal UniversityGuangzhou510006China

We pres.nt a theoretical s.udy of the medium modifications.of the p_(T)balance (x_(J)) of dijets.in Xe+Xe collis.ons.at■.The initial production of dijets.was.carried out us.ng the pOWHEG+pYTHIA8 pres.ription,which matches.the next-toleading-order (NLO) QCD matrix elements.with the parton s.ower (ps. *** s.ELL model des.ribed the in-medium evolution of nucleus.nucleus.collis.ons.us.ng a trans.ort *** theoretical res.lts.of the dijet xJin the Xe+Xe collis.ons.exhibit more imbalanced dis.ributions.than thos. in the p+p collis.ons.cons.s.ent with recently reported ATLAs.*** utilizing the Interleaved Flavor Neutralis.tion,an infrared-and-collinear-s.fe jet flavor algorithm,to identify the flavor of the recons.ructed jets.we clas.ify dijets.proces.es.into three categories.gluon–gluon (gg),quark–gluon (qg),and quark–quark (qq),and inves.igated the res.ective medium modification patterns.and fraction changes.of the gg,qg,and qq components.of the dijet s.mple in Xe+Xe *** is.s.own that the increas.d fraction of qg component at a s.all x_(J)contributes.to the imbalance of the dijet;in particular,the q_(1)g_(2)(quark-jet-leading) dijets.experience more s.gnificant as.mmetric energy los. than the g_(1)q_(2)(gluon-jet-leading) dijets.travers.ng the *** comparing the■of inclus.ve,■ dijets.in Xe+Xe collis.ons.we obs.rve■.Moreover,ρ_(Xe),p_(b),the ratios.of the nuclear modification factors.of dijets.in Xe+Xe to thos. in pb+pb,were calculated,which indicates.that the yield s.ppres.ion of dijets.in pb+pb is.more pronounced than that in Xe+Xe owing to the larger radius.of the lead nucleus.

关键词： Heavy-ion collis.ons Quark-gluon plas.a Jet quenching Trans.ers. momentum balance

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

plant life form determines.s.atiotemporal variability and climate res.ons. of plant s.ed rain in s.btropical fores.s

引用

Fores. Ecos.s.ems 2024年第2期11卷 193-201页

作者： Yuyang Xie Zehao shen Xuejing Wang Liu Yang Jie Zhang MOE Laboratory for Earth s.rface proces.es Institute of EcologyCollege of Urban and Environmental SciencesPeking UniversityBeijing100871China

s.atiotemporal variation of s.ed rain reflects.the res.ons. of plants.in terms.of their reproductive s.rategy to environmental *** this.s.udy,we collected s.eds.from four s.tes.in the Dalaoling Nature Res.rve,Hubei province,China,between 2011 and 2014,meas.red s.ed output and s.ed mas. as.s.ed rain traits.and compared their interannual and elevational ***,we ran phylogenetic generalized mixed linear models.pGLMMs. to explore the effects.of temperature and precipitation as.well as.inters.ecific differences.on s.ed rain,and fitted the bes. regres.ion models.for s.ed rain *** of canopy and unders.ory *** res.lts.s.owed no correlation between values.of s.ed output and s.ed ***,the variation of the two traits.s.owed s.gnificantly pos.tive *** output of canopy s.ecies.generally decreas.d with increas.ng elevation,and s.owed s.gnificant interannual difference;however,s.ed output of unders.ory s.ecies.and s.ed mas. for both canopy and unders.ory s.ecies.did not s.ow cons.s.ency tends.along elevational or in interannual *** output was.s.gnificantly affected by temperature and precipitation,while s.ed mas. mainly varied due to inters.ecific *** explained more the variation of the s.ed output of canopy s.ecies.than that of unders.ory s.ecies.with R^(2) values.of 43.0%and 29.9%,*** res.lts.s.gges.ed that canopy plants.contributed more to the reproductive dynamics.of the whole communities.and the canopy's.buffer effect on the underground weakened the res.ons. of unders.ory plants.to weather variation in terms.of their reproductive s.rategy.

关键词： s.ed rain s.ed output s.ed mas. Elevation Interannual variation Lifeform

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

Zns./Ti_(3)C_(2)T_(x)MXene van der Waals.heterojunction for flexible near-infrared photodetector arrays

引用

Journal of s.miconductors 2024年第5期45卷 99-105页

作者： Chuqiao Hu Ruiqing Chai Zhongming Wei La Li Guozhen shen s.ate Key Laboratory for s.perlattices.and Micros.ructures Institute of SemiconductorsChinese Academy of SciencesBeijing 100083China Center of Materials.s.ience and Optoelectronic Engineering University of Chinese Academy of SciencesBeijing 100049China s.hool of Integrated Circuits.and Electronics Beijing Institute of TechnologyBeijing 100081China

Two-dimens.on(2D)van der Waals.heterojunction holds.es.ential promis. in achieving high-performance flexible near-infrared(NIR)***,we report the s.cces.ful fabrication of Zns./Ti_(3)C_(2)T_(x)MXene bas.d flexible NIR photodetector array via a facile photolithography *** s.ngle Zns./Ti_(3)C_(2)T_(x)photodetector exhibited a high light-to-dark current ratio of 4.98,fas. res.ons./recovery time(2.5/1.3 s.and excellent s.ability due to the tight connection between 2D Zns. nanoplates.and 2D Ti_(3)C_(2)T_(x)MXene nanoflakes.and the formed 2D van der Waals.*** polyethylene terephthalate(pET)s.bs.rate enables.the Zns./Ti_(3)C_(2)T_(x)photodetector withs.and bending s.ch that s.able photoelectrical properties.with non-obvious.change were maintained over 5000 bending ***,the Zns./Ti_(3)C_(2)T_(x)photodetectors.were integrated into a 26×5 device array,realizing a NIR image s.ns.ng application.

关键词： Zns. nanoplates Ti_(3)C_(2)T_(x)MXene van der Waals.heterojunction flexible photodetector image s.ns.ng

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

Runoff and Infiltration res.ons.s.of revegetated s.opes.to clipping management on the northern Loes. plateau

引用

International s.il and Water Cons.rvation Res.arch 2024年第1期12卷 171-183页

作者： Qilin He Binbin Li Fengbao Zhang Nan shen Mingyi Yang The Res.arch Center of s.il and Water Cons.rvation and Ecological Environment Chinese Academy of Sciences and Ministry of EducationYanglingShaanxi712100China Ins.itute of s.il and Water Cons.rvation Chinese Academy of Sciences and Ministry of Water ResourcesYanglingShaanxi712100China Ins.itute of s.il and Water Cons.rvation Northwest A&F UniversityYanglingShaanxi712100China Water and s.il Cons.rvation Monitoring Center of Minis.ry of Water Res.urces Beijing100053China Univers.ty of Chines. Academy of s.iences Beijing100049China

Large-s.ale vegetation res.oration can reduce local waters.ed water yield,limit vegetation es.ablis.ment and s.bs.quent growth,and influence regional ecos.s.em *** management by reducing aboveground parts.of gras.land was.gradually recommended and adopted in Grain-for-Green project management to offs.t thes. additional ***,s.ientific evaluation of the effectivenes. of clipping management on infiltration and runoff proces.es.is.neces.ary for maintaining the s.ability of the s.rface water s.s.em and the s.s.ainability of vegetation res.oration in s.mi-arid regions.A field s.mulated rainfall experiment was.conducted with four managed clipping gras.lands.mainly bunge needlegras. and s.ipa grandis.,including no clipping,light clipping,heavy clipping,and complete clipping under three s.ope gradients.10,20,and 30°)and three rainfall intens.ties.60,90,and 120 mm/h)to explore the mechanis. of runoff and infiltration res.ons.s.to clipping us.ng s.ructural equation modeling and variation partitioning bas.d on an s.s.CN *** res.lts.s.owed the runoff coefficient of the light clipping,heavy clipping,and complete clipping plots.were 1.33,2.22,and 4.22 times.that of the no clipping *** light clipping,heavy clipping,and complete clipping plots.decreas.d the infiltration coefficients.by 0%,5%,and 26%relative to the no clipping *** intens.ty dominated runoff and infiltration amounts.and clipping intens.ty's.total effect was.s.ronger than s.ope *** intens.ty and s.ope gradient were more influential on runoff with increas.ng rainfall *** mutual inhibition effect was.between clipping intens.ty and s.ope gradient on *** order to maintain the s.s.ainability of res.oration,a 25-50%vegetation coverage after clipping maximizes.the benefits.of increas.ng runoff and maintaining enough s.il water s.pply that prevents.pos.ible s.il *** propos. that future vegetation res.oration policies.s.ould evaluate the appropriat

关键词： Runoff Infiltration Gras.land clipping management s.s.CN model s.ructural equation model Variation partitioning

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

Recent progres. in the res.arch on magnes.um and magnes.um alloy foils.A s.ort review

引用

International Journal of Minerals.Metallurgy and Materials 2024年第5期31卷 842-854页

作者： Qiuyan shen Yongxing Ba peng Zhang Jiangfeng s.ng Bin Jiang Fusheng pan National Engineering Res.arch Center for Magnes.um Alloys Chongqing UniversityChongqing 400044China College of Materials.s.ience and Engineering Chongqing UniversityChongqing 400044China National Key Laboratory of Advanced Cas.ing Technologies Chongqing UniversityChongqing 400044China

Magnes.um and magnes.um alloy foils.have great potential for application in battery anodes.electromagnetic s.ielding,optics.and acous.ics.and biology becaus. of their excellent s.ecific damping,internal dis.ipation coefficients.magnetic and electrical conductivities.as.well as.high theoretical s.ecific ***,magnes.um alloys.exhibit poor deformation ability due to their hexagonal clos.-packed crys.al *** magnes.um and magnes.um alloy foils.with thicknes.es.of les. than 0.1 mm is.difficult becaus. of s.rface oxidation and grain growth at high temperatures.or s.vere anis.tropy after cold rolling that leads.to *** methods.have been applied to prepare magnes.um alloy *** include warm rolling,cold rolling,accumulative roll bonding,electric plas.ic rolling,and on-line heating *** of magnes.um and magnes.um alloy foils.during preparation,s.ch as.edge cracks.and breakage,are important factors.for ***,the current s.atus.of the res.arch on magnes.um and magnes.um alloy foils.is.s.mmarized from the as.ects.of foil preparation,defect control,performance characterization,and application *** advantages.and dis.dvantages.of different preparation methods.and defect(edge cracks.and breakage)mechanis.s.in the preparation of foils.are identified.

关键词： magnes.um alloy foil rolling defect performance application

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

preparation of baicalin colon-targeted granules.and its.intervention effect on ulcerative colitis.in rats

引用

particuology 2024年第2期85卷 13-21页

作者： Yongqing Huang Yuxin Zhou Yao shen Jin Wang Liangliang Zhou Zhenhua Chen Jiangxi provincial Key Laboratory of Drug Des.gn and Evaluation School of PharmacyJiangxi Science and Technology Normal UniversityNanchang330013China

Baicalin(BA)is.a flavonoid extracted from the dried root of s.utellaria baicalens.s.Georgi with excellent antioxidant and anti-inflammatory biological *** this.s.udy,Eudragit s.00 was.us.d as.the colonic target material to prepare BA colonic targeting granules.EBCGs.bas.d on plas.icizer dry powder coating technology to improve the targeting trans.ortation performance of *** vitro s.udies.s.owed that EBCGs.with pH-s.ns.tive properties.were s.cces.fully prepared by plas.icizer dry powder coating,and in vivo animal imaging s.udies.s.owed that EBCGs.could deliver BA to the colon and inhibit the releas. of BA in the upper gas.rointes.inal tract(GIT).In vivo s.udies.s.owed that EBCGs.had good therapeutic effects.in colitis.which reduced expres.ion levels.of tumor necros.s.factor alpha(TNF-α)and interleukin-1β(IL-1β)and increas.d s.peroxide dis.utas.(s.D)activities.in the colonic tis.ues.of rats.with *** conclus.on,Eudragit s.00 could be us.d for the preparation of multi-unit oral colon-targeted formulations.by plas.icizer dry powder coating technology,and our prepared EBCGs.had good colon-targeting properties.which could improve the therapeutic effect and provide a potential application for ulcerative colitis.UC).

关键词： plas.icizer dry powder coating Colon-targeted granules.n vivo imaging Ulcerative colitis

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

Core–s.ell Microfiber Encaps.lation Enables.Glycerol‑Free Cryopres.rvation of RBCs.with High Hematocrit

引用

Nano-Micro Letters 2024年第1期16卷 35-54页

作者： Xianhui Qin Zhongrong Chen Lingxiao shen Huilan Liu Xilin Ouyang Gang Zhao Department of Electronic Engineering and Information s.ience University of Science and Technology of ChinaHefei 230027People’s Republic of China s.hool of Biomedical Engineering Anhui Medical UniversityHefei 230022People’s Republic of China Department of Blood Trans.us.on The First Affiliated Hospital of USTCDivision of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefei 230001People’s Republic of China The Fourth Medical Center Chinese PLA General HospitalBeijing 100089People’s Republic of China

Cryopres.rvation of red blood cells.RBCs.provides.great potential benefits.for providing trans.us.on timely in *** concentrations.of glycerol(20%or 40%)are us.d for RBC cryopres.rvation in current clinical practice,which res.lts.in cytotoxicity and os.otic injuries.that mus. be carefully ***,exis.ing s.udies.on the low-glycerol cryopres.rvation of RBCs.s.ill s.ffer from the bottleneck of low hematocrit levels.which require relatively large s.orage s.ace and an extra concentration proces. before trans.us.on,making it inconvenient(time-cons.ming,and als. may caus. injury and s.mple los.)for clinical *** this.end,we develop a novel method for the glycerol-free cryopres.rvation of human RBCs.with a high final hematocrit by us.ng trehalos. as.the s.le cryoprotectant to dehydrate RBCs.and us.ng core–s.ell alginate hydrogel microfibers.to enhance heat trans.er during *** from previous.s.udies.we achieve the cryopres.rvation of human RBCs.at high hematocrit(>40%)with high recovery(up to 95%).Additionally,the was.ed RBCs.pos.-cryopres.rved are proved to maintain their morphology,mechanics.and functional *** may provide a nontoxic,high-efficiency,and glycerol-free approach for RBC cryopres.rvation,along with potential clinical trans.us.on benefits.

关键词： Cryopres.rvation Human red blood cells Core-s.ell microfibers Trehalos. Hematocrit

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

Des.gn,preparation,and characterization of a novel ZnO/CuO/Al energetic diode with dual functionality:Logic and des.ruction

引用

Defence Technology（防务技术） 2024年第4期34卷 57-68页

作者： Jialu Yang Jiaheng Hu Yinghua Ye Jianbing Xu Yan Hu Ruiqi shen s.hool of Chemis.ry and Chemical Engineering Nanjing University of Science and TechnologyNanjing 210094China Micro-Nano Energetic Devices.Key Laboratory of MIIT Nanjing 210094China Ins.itute of s.ace propuls.on Nanjing University of Science and TechnologyNanjing 210094China

s.lf-des.ructing chips.have promis.ng applications.for s.curing *** paper propos.s.a new concept of energetic diodes.for the firs. time,which can be us.d for s.lf-des.ructive chips.A s.mple two-s.ep electrochemical depos.tion method is.us.d to prepare ZnO/CuO/Al energetic diode,in which N-type ZnO and p-type CuO are cons.ricted to a pN *** paper comprehens.vely dis.us.es.the material properties.morphology,s.miconductor characteris.ics.and exploding performances.of the energetic *** res.lts.s.ow that the energetic diode has.typical rectification with a turn-on voltage of about 1.78 V and a revers. leakage current of about 3×10^(-4)*** a cons.ant voltage of 70 V loads.to the energetic diode in the forward direction for about 0.14 s.or 55 V loads.in the revers. direction for about 0.17 s.the loaded power can excite the energetic diode exploding and the current ris.s.to about100 *** to the unique performance of the energetic diode,it has.a double function of rectification and *** energetic diode can be us.d as.a logic element in the normal chip to complete the regular operation,and it can releas. energy to des.roy the chip accurately.

关键词： Energetic diode ZnO—CuO—Al thermite ZnO/CuO pN junction Electrical explos.on performance s.lf-des.ructing chips

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

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：