检索结果-南通市图书馆

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

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

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

作者： Qiuyan s.en Yongxing ba Peng Zhang Jiangfeng s.ng Bin Jiang Fus.eng 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

Force Compens.tion Control for Electro-Hydraulic s.rvo s.s.em with Pump-Valve Compound Drive via QFT-DTOC

在线全文

学校读者我要写书评

暂无评论

Chines. Journal of Mechanical Engineering 2024年第2期37卷 228-246页

作者： Kaixian ba Yuan Wang Xiaolong He Chunyu Wang Bin Yu Yaliang Liu Xiangdong Kong Hebei Provincial Key Laboratory of Heavy Machinery Fluid Power Trans.is.ion and Control Qinhuangdao 066004China s.hool of Mechanical Engineering Yanshan UniversityQinhuangdao 066004China National Engineering Res.arch Center for Local Joint of Advanced Manufacturing Technology and Equipment Yanshan UniversityQinhuangdao 066004China

Each joint of a hydraulic-driven legged robot adopts.a highly integrated hydraulic drive unit(HDU),which features.a high power-weight ***,mos. HDUs.are throttling-valve-controlled cylinder s.s.ems.which exhibit high energy *** contras.,pump control s.s.ems.offer a high ***,their res.ons. ability is.*** fully utilize the advantages.of pump and valve control s.s.ems.in this.s.udy,a new type of pump-valve compound drive s.s.em(PCDs.is.des.gned,which can not only effectively reduce the energy los.,but can als. ens.re the res.ons. s.eed and res.ons. accuracy of the HDUs.in robot joints.to s.tis.y the performance requirements.of ***,cons.dering the force control requirements.of energy cons.rvation,high precis.on,and fas. res.ons. of the robot joint HDU,a nonlinear mathematical model of the PCDs.force control s.s.em is.firs. *** addition,pres.ure-flow nonlinearity,friction nonlinearity,load complexity and variability,and other factors.affecting the s.s.em are cons.dered,and a novel force control method bas.d on quantitative feedback theory(QFT)and a dis.urbance torque obs.rver(DTO)is.des.gned,which is.denoted as.QFT-DTOC *** method improves.the control accuracy and robus.nes. of the force control s.s.em,reduces.the effect of the dis.urbance torque on the control performance of the s.rvo motor,and improves.the overall force control performance of the ***,experimental verification is.performed us.ng the PCDs.performance tes. *** experimental res.lts.and quantitative data s.ow that the QFT-DTOC propos.d herein can s.gnificantly improve the force control performance of the *** relevant force control method can be us.d as.a bottom-control method for the hydraulic s.rvo s.s.em to provide a foundation for implementing the top-level trajectory planning of the robot.

关键词： Legged robot Pump-valve compound drive s.s.em(PCDs. Force compens.tion control Quantitative feedback theory(QFT) Dis.urbance torque obs.rver(DTO)

Aggregation of CeAlO_(3) inclus.ons.in heavy ingot of a s.eel containing 0.007% aluminum

在线全文

学校读者我要写书评

暂无评论

Journal of Iron and s.eel Res.arch International 2024年第8期31卷 1960-1972页

作者： Qiu-yue Zhou Jun-tao ba Lun Zhang Wei Chen Ying Ren Li-feng Zhang s.hool of Metallurgical and Ecological Engineering University of Science and Technology BeijingBeijing 100083China s.hool of Mechanical Engineering Yanshan UniversityQinhuangdao 066004HebeiChina s.hool of Mechanical and Materials.Engineering North China University of TechnologyBeijing 100144China

The dis.ribution of inclus.ons.at the bottom of a Ce-treated heavy s.eel ingot was.detected and *** three-dimens.onal morphology and s.atial dis.ribution of CeAlOs.clus.ers.were characterized us.ng the electrolytic extraction and Micro-CT detection.A model of inclus.on collis.on to predict the aggregation of CeAlO_(3) inclus.ons.in the ingot was.es.ablis.ed and validated by meas.red *** were mainly CeAlO_(3) and a s.all amount of Ce_(2)O_(2)s.in the tundis. after cerium *** collis.on and aggregation of inclus.ons.led to the formation of large clus.ers.in the ingot during the s.lidification *** s.ag entrainment inclus.ons.large CeAO_(3) clus.ers.and s.all CeAlO_(3) particles.were obs.rved from the center to the edge of the ingot *** inclus.ons.were mainly concentrated at the *** number dens.ty of inclus.ons.larger than 200μm was.0.21 mm^(-3).The maximum diameter of CeA1O_(3) clus.ers.was.1340μ*** the edge to the radial center and from the bottom to the top,the average diameter of inclus.ons.gradually increas.d due to the longer s.lidification time of the ingot.

关键词： Inclus.on Heavy ingot Cerium treatment Collis.on

Gas.ric cancer s.creted miR 214-3p inhibits.the anti-angiogenes.s.effect of apatinib by s.ppres.ing ferroptos.s.in vas.ular endothelial cells

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Oncology Res.arch 2024年第3期32卷 489-502页

作者： WEIXUE WANG TONGTONG WANG YAN ZHANG TING DENG HAIYANG ZHANG YI ba Department of GI Medical Oncology Tanjin Medical University Cancer Institute and HospitalNational Clinical Research Center for CancerTianjin's Clinical Research Center for CancerTianjin Key Iaboratory of Digestive CancerKey Laboratory of Cancer Prevention and TherapyTianjin300060China

Diferent from necros.s.apoptos.s.autophagy and other forms.of cell death,ferroptos.s.is.a mechanis. that catalyzes.lipid peroxidation of polyuns.turated ftty acids.under the action of iron divalent or lipoxygenas.,leading to cell *** is.currently us.d in the third line s.andard treatment of advanced gas.ric cancer,targeting the anti-angiogenes.s.***,Apatinib mediated ferroptos.s.in vas.ular endothelial cells.has.not been reported *** exos.mes.can be taken up into target cells.to regulate tumor development,but the mechanis. related to vas.ular endothelial cell ferroptos.s.has.not yet been ***,we s.ow that exos.mes.s.creted by gas.ric cancer cells.carry miR-214.3p into vas.ular endothelial cells.and directdy target zinc finger protein A20 to negatively regulate ACs.4,a key enzyme of lipid peroxidation during frroptos.s.thereby inhibiting ferroptos.s.in vas.ular endothelial cells.and reducing the eficiency of *** conclus.on,inhibition of miR-214-3p can increas. the s.ns.tivity of vas.ular endothelial cells.to Apatinib,thereby promoting the antiangiogenic efect of Apatinib,s.gges.ing a potential combination therapy for advanced gas.ric cancer.

关键词： Cellular ferroptos.s Exos.me Tyros.ne kinas. inhibitor Gas.rointes.inal tumors miRNA

Fluid identification and tight oil layer clas.ification for the s.uthwes.ern Mahu s.g,Junggar bas.n us.ng NMR logging-bas.d s.ectrum decompos.tion

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Energy Geos.ience 2024年第2期5卷 62-69页

作者： Wenbiao Huang Yibing Guo Jun Qin Zhongchen ba Zongbin Zhang Luning bai Heng Li s.hool of Geos.iences China University of Petroleum(East China)QingdaoShandong266580China PetroChina Xinjiang Oilfield Company KaramayXinjiang834000China

The intricate dis.ribution of oil and water in tight rocks.makes.pinpointing oil layers.*** conventional identification methods.offer potential s.lutions.their limited accuracy precludes.them from being effective in their applications.to unconventional *** s.udy employed nuclear magnetic res.nance(NMR)s.ectrum decompos.tion to dis.ect the NMR T_(2)s.ectrum into multiple ***,it employed laboratory NMR experiments.to as.ertain the fluid properties.of thes. s.b-s.ectra,aiming to enhance identification *** findings.indicate that fluids.of dis.inct properties.overlap in the T_(2)s.ectra,with bound water,movable water,bound oil,and movable oil appearing s.quentially from the low-value zone to the high-value ***,an oil layer clas.ification s.heme was.propos.d,which cons.ders.the phys.cal properties.of res.rvoirs.oil-bearing capacity,and the characteris.ics.of both mobility and the oil-water two-phas. *** applied to tight oil layer identification,the s.heme's.outcomes.align clos.ly with actual tes. res.lts.A horizontal well,deployed bas.d on thes. findings.has.produced high-yield indus.rial oil flow,unders.oring the precis.on and dependability of this.new approach.

关键词： Nuclear magnetic res.nance Fluid identification Oil layer identification NMR T_(2)s.ectrum decompos.tion Normal dis.ribution s.mulation

Carbon dots.derived three-dimens.onal-ordered macroporous.hos. with high penetrability and catalytic activity for Ls.s.under lean electrolyte

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Rare Metals 2024年第6期43卷 2560-2573页

作者： Jiao-Zi Duan Hua-Yu Pei Quan Yang Xue Li Xin ba Xue Yong Jun-Ling Guo s.-Yu Lu Green Catalys.s.Center College of ChemistryZhengzhou UniversityZhengzhou 450001China Country s.ate Center for International Cooperation On Des.gner Low-Carbon&Environmental Materials School of Materials Science and EngineeringZhengzhou UniversityZhengzhou 450001China Hubei Ins.itute of Quality s.pervis.on Ins.ection Wuhan 430061China Department of Chemis.ry University of SheffieldSheffeld S37HFUK

The practical energy dens.ty of lithium-s.lfur batteries.Ls.s.is.s.rious.y limited by the high electrolyte-to-s.lfur ratios.E/s..The E/s.can be reduced by employing hos.s.with eas.-to-infiltrate s.ructure that ens.res.the uniform dis.ribution of a lean electrolyte and high catalytic activity that can s.ppres."s.uttle effect"via accelerating the s.ow convers.on of s.luble poly s.lfides.to ins.luble *** the eas.-to-infiltrate s.ructures.the three-dimens.onal-ordered macroporous.3DOM)s.ructure is.eas.er to s.ale preparation and more s.itable for the exis.ing indus.rial ***,it is.difficult to obtain the 3DOM with(1)high penetrability due to the high vis.os.ty of frequently-us.d organic polymer precurs.rs.and(2)high catalytic activity due to the low confinement effect,meaning that uniformly dis.ers.d s.all-s.zed catalytic materials.are difficult to load on ***,us.ng carbon dots.CDs.with both organic and inorganic properties.as.a precurs.r and aggregation limiting agent,a 3DOM hos. with high penetrability and homodis.ers.d Ni particles.of s.all s.zes.Ni-CDs.3DOM)was.*** this.hos.:(1)CDs.precurs.r with s.itable vis.os.ty can improve the penetrability.(2)CDs.can effectively inhibit the agglomeration of Ni particles.(3)Uniformly dis.ers.d s.all-s.ze Ni particles.offer high-efficiency catalytic activity toward s.lfur ***,the Ni-CDs.3DOM/s.lfur cathode exhibits.high s.lfur utilization and s.able cycling performance even under high s.lfur loading(5.5 mg·cm^(-2))and low E/s.6.5μl·mg^(-1)).This.work indicates.the us.fulnes. of CDs.in cons.ructing hos.s.for Ls.s.with high energy dens.ty.

关键词： Lithium-s.lfur batteries Carbon dots Catalytic action Eas.-to-infiltrate s.ructure Lean electrolyte

Metabolic s.ndrome’s.new therapy:s.pplement the gut microbiome

在线全文

学校读者我要写书评

暂无评论

World Journal of Diabetes 2024年第4期15卷 793-796页

作者： Yong-Wei Xu Jun Tian Yan s.ng ba-Cui Zhang Jing Wang Department of Gas.roenterology Songjiang HospitalSchool of MedicineShanghai Jiaotong UniversityShanghai 201600China

This.letter to the editor dis.us.es.the publication on gut microbiome s.pple-mentation as.therapy for metabolic *** microbiome dys.ios.s.dis.upts.intes.inal bacterial homeos.as.s.and is.related to chronic inflammation,ins.lin res.s.ance,cardiovas.ular dis.as.s.type 2 diabetes.mellitus.and *** res.arch has.found that increas.ng the abundance of beneficial microbiota in the gut modulates.metabolic s.ndrome by reducing chronic inflammation and ins.lin ***,probiotics.s.nbiotics.and pos.biotics.are often us.d as.s.pplements.to increas. the number of beneficial microbes.and thus.the produc-tion of s.ort-chain fatty acids.which have pos.tive effects.on the gut microbiome and metabolic *** this.review article,the author s.mmarizes.the available s.pplements.to increas. the abundance of beneficial gut microbiota and reduce the abundance of harmful microbiota in patients.with metabolic *** group is.als. res.arching the role of the gut microbiota in chronic liver *** article will be of great help to our *** the end of the letter,the mechanis. of the gut microbiota in chronic liver dis.as. is.dis.us.ed.

关键词： Gut microbiome Metabolic s.ndrome Diabetes.mellitus s.ort-chain fatty acids Chronic liver dis.as.

Phas. Ib s.udy of anti-EGFR antibody(s.T200)in combination with anti-PD-1 antibody(s.T-I10A)for patients.with RAs.BRAF wild-type metas.atic colorectal cancer

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Cancer Biology & Medicine 2024年第7期21卷 636-650页

作者： Ming bai Yao Lu Chunmei s.i Jianwei Yang Wei Li Xianli Yin Chenghui Huang Lin s.en Liangzhi Xie Yi ba Department of GI Medical Oncology Tianjin Medical University Cancer Institute&HospitalNational Clinical Research Center for CancerKey Laboratory of Cancer Prevention and TherapyTianjinTianjin's Clinical Research Center for CancerTianjin Key Laboratory of Digestive CancerTianjin 300060China Fujian Medical Univers.ty Union Hos.ital Fuzhou 350001China Fujian Provincial Cancer Hos.ital Fuzhou 350014China Cancer Center The First Hospital of Jilin UniversityChangchun 130021China Department of Medical Oncology Gas.roenterology and Urology Hunan Cancer HospitalAffiliated Cancer Hospital of Xiangya School of MedicineCentral South UniversityChangsha 410013China Department of Oncology The Third Xiangya HospitalCentral South UniversityChangsha 410013China Department of Gas.rointes.inal Oncology Key Laboratory of Carcinogenesis and Translational Research(Ministry of Education/Bejing)Peking University Cancer Hospital and InstituteBeijing 100142China Beijing Engineering Res.arch Center of Protein and Antibody Sinocelltech Ltd.Bejing 100176China Department of Cancer Center Peking Union Medical College HospitalChinese Academy of Medical SciencesBeijing 100010China

Objective:This.s.udy evaluated the s.fety and efficacy of an anti-epidermal growth factor receptor(EGFR)antibody(s.T200)and an anti-programmed cell death 1(PD-1)antibody(s.T-I10A)as.third-line or s.bs.quent therapies.in patients.with rat s.rcoma viral oncogene(RAs./v-raf murine s.rcoma viral oncogene homolog B(BRAF)wild-type(wt)metas.atic colorectal cancer(mCRC).Methods.We conducted a multicenter,open-label,phas. Ib clinical *** with his.ologically confirmed RAs.BRAF wt m CRC with more than two lines.of treatment were enrolled and treated with s.T-I10A and *** primary endpoints.were the objective res.ons. rate(ORR)and *** s.condary endpoints.included dis.as. control rate(DCR),progres.ion-free s.rvival(PFs.,and overall s.rvival(Os..Res.lts.Twenty-one patients.were enrolled in the s.udy through January 28,*** ORR was.28.57%and the DCR was.85.71%(18/21).The median PFs.and Os.were 4.14 and 12.84 months.*** treatment-related advers. events.TRAEs.were ***,compared with the monotherapy cohort from our previous.phas. I s.udy evaluating s.T200 for RAs.BRAF wt m CRC in a third-line s.tting,no s.gnificant improvements.in PFs.and Os.were obs.rved in the combination ***:s.T200 combined with s.T-I10A demons.rated promis.ng efficacy in previous.y treated RAs.BRAF wt m CRC patients.with an acceptable s.fety *** head-to-head s.udies.with larger s.mple s.zes.are needed to validate whether the efficacy and s.fety of combined anti-EGFR and anti-PD-1 therapy are s.perior to anti-EGFR monotherapy in the third-line s.tting.(Regis.ration ***04229537).

关键词： Colorectal cancer s.T-I10A s.T200 epidermal growth factor receptor programmed cell death 1

The Role of Renewable Protocatechol Acid in Epoxy Coating Modification: s.gnificantly Improved Antibacterial and Adhes.ve Properties

在线全文

学校读者我要写书评

暂无评论

Chines. Journal of Polymer s.ience 2024年第1期42卷 63-72,I0008页

作者： Ming-Xuan Chen Jin-Yue Dai Li-Yue Zhang s.uai-Peng Wang Jing-Kai Liu Yong-Gang Wu Xin-Wu ba Xiao-Qing Liu s.hool of Chemis.ry and Materials.s.ience Hebei UniversityBaoding 071000China Ningbo Ins.itute of Materials.Technology and Engineering Chinese Academy of SciencesNingbo 315201China Key Laboratory of Marine Materials.and Related Technologies Chinese Academy of SciencesNingbo 315201China

It is.of great s.gnificance to des.gn epoxy coatings.with s.perior antibacterial properties.and high adhes.ve properties. as.well as.excellent proces.ing, s.perior durability, and high trans.arency. However, it is.s.ill a challenge becaus. of the common complex des.gn and s.nthes.s. Herein, the bio-bas.d monomer protocatechuic acid(PCA) was.us.d as.raw material, the catechol s.ructure with high bonding and antibacterial properties.was.introduced into the flexible alkane s.gment of ethylene glycol diglycidyl ether(EGDE) through an efficient, and green method, and it was.cured with is.phorone diamine(IPDA) to prepare corres.onding thermos.ts. The cured res.ns.exhibited excellent allaround qualities. particularly in bonding and antibacterial. When 30% PCA was.added to pure epoxy res.n, the adhes.on between s.bs.rate and coating increas.d from 4.40 MPa to 13.60 MPa and the antibacterial rate of coating agains. E. coli and s. aureus.could approach 100%. All of this.is.due to the fact that the catechol s.ructure pres.nt in PCA has.the ability to interact with various.s.bs.rates.and alter the permeability of bacterial cell membranes. The architecture of this.method offers.a fres. approach to dealing with the is.ues.of challenging raw material s.lection and complex s.nthes.s.techniques.

关键词： Epoxy coatings Thermos.ts Catechol s.ructure Antibacterial High adhes.on