检索结果-南通市图书馆

mRI、Tinel测试和菱形肌电图预测适合移植的c5脊髓神经残端：一项295例连续臂丛神经手术的回顾性研究

首届浙赣两省肿瘤研究交流会

作者： Y.Z.chen J.Y.Xue c.m.chen B.L.Yang G.Y.Liu Z.Z.Shen Z.m.Shao J.Wu Q.H.Xu F.Wu F.Liu X.Ye X.meng Department of Breast Surgery Fudan University Shanghai Cancer Center Department of Oncology Shanghai Medical CollegeFudan University Department of Oncology Surgery First Affiliated Hospital of Wenzhou Medical College2 Fu Xue Lane Fudan University Shanghai cancer center-Institut mérieux Laboratory Fudan University Shanghai Cancer Center

Purpose Neoadjuvant chemotherapy for advanced breast cancer may improve the radicality for a subset of patients,but others may suffer from severe adverse drug reactions without any *** predict the responses to chemotherapy,we performed a phaseⅡtrial of neoadjuvant chemotherapy using a weekly Pcb regimen[paclitaxel (Taxol) plus carboplatin]for stageⅡ/Ⅲbreast cancer and assessed the correlation between baseline gene expression and the tumor response to treatment. methods A total of 61 patients with stage II-Ⅲbreast cancer were included and administered four cycles of preoperative *** performed a gene expression analysis using Affymetrix HG-U133 Plus 2.0 Genechip arrays in 31 breast cancer *** expressed genes(DEGs) were identified by the Significance Analysis of microarrays(SAm) program using a false discovery rate(FDR) of *** Functional Annotation Tool in the DAVID Bioinformatics Resources was used to perform the gene functional enrichment *** other 30 patients(15 pcR and 15 non-pcR patients) were available as an independent validation set to test the selected DEGs by quantitative real-time PcR analysis(qRT-PcR). Results By analyzing six pathological complete response(pcR) patients and 25 patients with non-pcR,300 probes(231 genes) were identified as differentially expressed between pcR and residual disease by the SAm program when the fold change was>*** gene functional enrichment analysis revealed 15 prominent gene categories that were different between pcR and non-pcR patients,most notably the genes involved in the PPAR(Peroxisome Proliferator Activated Receptor),DNA repair and ER signal pathways and in the immune-related gene *** qRT-PcR analysis results for the genes in the PPAR pathway(LPL,SORBSl,PLTP,ScD5,mmPl and cSTA) in independent validation set were consistent with the results from the microarray data analysis. conclusion In the present study,we identified a number of gene categories pertinent to the ther

关键词： Neoadjuvant Gene expression chemotherapy response PPAR pathway DNA repair

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

国际医学放射学杂志 2021年第5期 599-599页

作者： Y.J.Yeow K.m.Yeow I.H.Su Y.m.Wu c.m.chen J.H.Tseng 宋瑞瑞

摘要mRI、Tinel试验和菱形肌电图(EmG)可用于预测急性成人臂丛神经损伤的c5脊神经残端是否健康以及是否适合移植,但尚未有研究评估比较它们的诊断效能。目的比

关键词：

采用320层容积cT及自适应迭代重建算法行低管电压(80kV)cT血管成像:低对比剂剂量及辐射剂量

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

国际医学放射学杂志 2014年第2期 200-200页

作者： c.m.chen S.Y.chu m.Y.Hsu Y.L.Liao H.Y.Tsai 林琳 Department of medical Imaging & Radiological Sciences Chang Gung University 259 Wen -Hwa 1st Road Kwei -ShanTaoyuanTaiwan 333

目的评估采用迭代重建(IR)法维持cT血管成像影像质量,同时减低管电压和对比剂剂量。方法机构审查委员会批准了此项前瞻性研究,对48例病人进行cT血管成像

关键词：容积cT 对比剂主动脉瘤辐射剂量放射影像增强

multi-layer multi-pass friction rolling additive manufacturing of Al alloy:Toward complex large-scale high-performance components

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

International Journal of minerals,metallurgy and materials 2025年第2期32卷 425-438页

作者： Haibin Liu Run Hou chenghao Wu Ruishan Xie Shujun chen college of mechanical&Energy Engineering Beijing University of TechnologyBeijing 100124China chongqing Research Institute of Beijing University of Technology Chongqing 401121China

At present,the emerging solid-phase friction-based additive manufacturing technology,including friction rolling additive man-ufacturing(FRAm),can only manufacture simple single-pass *** this study,multi-layer multi-pass FRAm-deposited alumin-um alloy samples were successfully prepared using a non-shoulder tool *** material flow behavior and microstructure of the over-lapped zone between adjacent layers and passes during multi-layer multi-pass FRAm deposition were studied using the hybrid 6061 and 5052 aluminum *** results showed that a mechanical interlocking structure was formed between the adjacent layers and the adja-cent passes in the overlapped center *** friction and rolling of the tool head led to different degrees of lateral flow and plastic deformation of the materials in the overlapped zone,which made the recrystallization degree in the left and right edge zones of the over-lapped zone the highest,followed by the overlapped center zone and the non-overlapped *** tensile strength of the overlapped zone exceeded 90%of that of the single-pass deposition *** is proved that although there are uneven grooves on the surface of the over-lapping area during multi-layer and multi-pass deposition,they can be filled by the flow of materials during the deposition of the next lay-er,thus ensuring the dense microstructure and excellent mechanical properties of the overlapping *** multi-layer multi-pass FRAm deposition overcomes the limitation of deposition width and lays the foundation for the future deposition of large-scale high-performance components.

关键词： aluminum alloy additive manufacturing solid-state friction stir welding multi-layer multi-pass

维普期刊数据库

microstructural evolution during the progressive transformation-induced plasticity effect in a Fe-0.1c-5mnmedium manganese steel

在线全文

学校读者我要写书评

暂无评论

International Journal of minerals,metallurgy and materials 2025年第2期32卷 369-379页

作者： mei Zhang Wenhao Li Yangfei chen Yang Jiang Xiaofei Guo Han Dong School of materials Science and Engineering Shanghai UniversityShanghai 200444China State Key Laboratory of Advanced Special Steel Shanghai UniversityShanghai 200444China

The microstructural evolution of a cold-rolled and intercritical annealed medium-mn steel(Fe-0.10c-5mn)was investigated during uniaxial tensile ***-situ observations under scanning electron microscopy,transmission electron microscopy,and X-ray diffraction analysis were conducted to characterize the progressive transformation-induced plasticity process and associated fracture initiation *** findings were discussed with the local strain measurements via digital image *** results indicated that Lüders band formation in the steel was limited to 1.5%strain,which was mainly due to the early-stage martensitic phase transformation of a very small amount of the less stable large-sized retained austenite(RA),which led to localized stress concentrations and strain hardening and further retardation of *** small-sized RA exhibited high stability and progressively transformed into martensite and contributed to a stably extended Portevin-Le chatelier *** volume fraction of RA gradually decreased from 26.8%to 8.2%prior to *** the late deformation stage,fracture initiation primarily occurred at the austenite/martensite and ferrite/martensite interfaces and the ferrite phase.

关键词： medium-mn steel retained austenite progressive transformation-induced plasticity effect local strain fracture initiation

维普期刊数据库

Ammonia pyrolysis oxidation excited by nanosecond pulsed discharge:Global/fluid models hybrid solution

在线全文

学校读者我要写书评

暂无评论

Journal of Energy chemistry 2025年第1期100卷 385-396页

作者： mingming Zhang Hanyu Wu Qi chen Jiaxin Yang Bonan Liu School of mechanical Electronic and Control Engineering Beijing Jiaotong University china University of Petroleum

The kinetic characteristics of plasma-assisted oxidative pyrolysis of ammonia are studied by using the global/fluid models hybrid solution ***,the stable products of plasma-assisted oxidative pyrolysis of ammonia are *** results show that the consumption of NH3/O2and the production of N2/H2change linearly with the increase of voltage,which indicates the decoupling of nonequilibrium molecular excitation and oxidative pyrolysis of ammonia at low ***,the detailed reaction kinetics mechanism of ammonia oxidative pyrolysis stimulated by a nanosecond pulse voltage at low pressure and room temperature is *** on the reaction path analysis,the simplified mechanism is *** detailed and simplified mechanism simulation results are compared with experimental data to verify the accuracy of the simplified ***,based on the simplified mechanism,the fluid model of ammonia oxidative pyrolysis stimulated by the nanosecond pulse plasma is established to study the pre-sheath/sheath behavior and the resultant consumption and formation of key *** results show that the generation,development,and propagation of the pre-sheath have a great influence on the formation and consumption of *** consumption of NH3by the cathode pre-sheath is greater than that by the anode pre-sheath,but the opposite is true for OH and O（1S）.However,within the sheath,almost all reactions do not ***,by changing the parameters of nanosecond pulse power supply voltage,it is found that the electron number density,electron current density,and applied peak voltages are not the direct reasons for the structural changes of the sheath and ***,the discharge interval has little effect on the sheath structure and gas mixture *** research results of this paper not only help to understand the kinetic promotion of non-equilibrium excitation in the process of oxidative pyrolysis but also help to explore th

关键词： Nanosecond pulsed discharge Ammonia Oxidative pyrolysis Fluid model Global model

co/co_(7)Fe_(3)heterostructures with controllable alloying degree on carbon spheres as bifunctional electrocatalyst forrechargeable zinc-air batteries

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

International Journal of minerals,metallurgy and materials 2025年第2期32卷 476-487页

作者： Junkang chen Yongyue Zhuang Yanxin Qiao Yu Zhang Aihua Yuan Hu Zhou School of materials Science and Engineering Jiangsu University of Science and TechnologyZhenjiang 212003China School of Environmental and chemical Engineering Jiangsu University of Science and TechnologyZhenjiang 212003China

Exploring efficient and nonprecious metal electrocatalysts of oxygen reduction reaction(ORR)and oxygen evolution reaction(OER)is crucial for developing rechargeable zinc-air batteries(ZABs).Herein,an alloying-degree control strategy was employed to fabricate nitrogen-doped carbon sphere(NcS)decorated with dual-phase co/co_(7)Fe_(3)heterojunctions(coFe@NcS).The phase composition of materials has been adjusted by controlling the alloying *** optimal coFe_(0.08)@NcS electrocatalyst displays a half-wave potential of 0.80 V for ORR and an overpotential of 283 mV at 10 mA·cm^(-2)for OER in an alkaline *** intriguing bifunctional electrocatalytic activity and durability is attributed to the hierarchically porous structure and interfacial electron coupling of highly-active co_(7)Fe_(3)alloy and metallic co *** the coFe_(0.08)@NcS material is used as air-cathode catalyst of rechargeable liquid-state zinc-air battery(ZAB),the device shows a high peak power-density(157 mW·cm^(-2))and maintains a stable voltage gap over 150 h,outperforming those of the benchmark(Pt/c+RuO_(2))-based *** particular,the as-fabricated solid-state flexible ZAB delivers a reliable compatibility under different bending *** work provides a promising strategy to develop metal/alloy-based electrocatalysts for the application in renewable energy conversion technologies.

关键词： bifunctional electrocatalysts oxygen reduction reaction oxygen evolution reaction zinc-air battery metal/alloy carbon sphere

维普期刊数据库

Surface micro-arrays enhancing electromagnetic interference shielding of polydimethylsiloxane/multiwalled carbon nanotubes nanocomposites

在线全文

学校读者我要写书评

暂无评论

Nano Research 2025年第1期18卷 508-519页

作者： Ke Jiang Zhi chen Ji Yu chen Zheng Shan Huang ming Wang chongqing Key Laboratory of Soft-matter material manufacturing School of Chemistry and Chemical EngineeringSouthwest UniversityChongqing 400715China School of mechanics Civil Engineering and ArchitecturesNorthwestern Polytechnical UniversityXi’an 710072China Jieyang Branch of chemistry and chemical Engineering Guangdong Laboratory(Rongjiang Laboratory) Jieyang 515200China

Herein,the electromagnetic shielding performance of surface concave-convex(Sc)and zig-zag micro-arrays was studied by using a simulation prediction and a three-dimensional(3D)printing custom ***,surface stripe concaveconvex(SSc)and surface cylindrical concave-convex(Scc)micro-arrays with or without zig-zag micro-arrays are designed,and their shielding performance is simulated in multi-bands(c-,X-band).The multiwalled carbon nanotubes/polydimethylsiloxane composites(mWcNT/PDmS)with different Sc structures and different electrical conductivity are molded in acrylonitrile-butadiene-styrene copolymer(ABS)molds which are printed by a 3D *** results show that the electromagnetic interference shielding effectiveness(EmI SE)of the samples can be enhanced by constructing the Sc micro-arrays with zig-zag micro-arrays,and improving with the increase of conductivity and *** addition,the shielding mechanism of the Sc-mWcNT/PDmS composites is investigated and discussed by an electromagnetic simulation.

关键词： surface micro-arrays electrical properties electromagnetic interference(EmI)shielding three-dimensional(3D)printing

Highly conductive and stable iodine doped argyrodite electrolyte for all-solid-state lithium batteries

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

Journal of Energy chemistry 2025年第1期100卷 50-58页

作者： Gaozhan Liu Jing Zhang Jing Yang Jinghui chen Xingyue Xiao Xiayin Yao Ningbo Institute of materials Technology and Engineering Chinese Academy of Sciences center of materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences

Lithium argyrodites with high ionic conductivity and low cost are considered as one of the most prospective solid electrolytes for all-solid-state lithium ***,the poor chemical stability and compatibility with lithium metal limit their ***,Li5.4PS4.4cl1.4I0.2solid electrolyte with high ionic conductivity of 11.49 m S cm-1and improved chemical stability is synthesized by iodine *** ultra-thin Li5.4PS4.4cl1.4I0.2membrane with thickness of 10μm can be obtained by wet coating process,exhibiting a high ionic conductivity of 2.09 mS cm-1and low areal resistance of 1.17Ω***,iodine doping could in-situ form LiI at the lithium/electrolyte interface and improve the critical current density of Li5.4PS4.4cl1.6from 0.8 to 1.35 mA *** resultant LicoO2/Li5.4PS4.4cl1.4I0.2/Li battery shows excellent cycling stability at 1 c,with a reversible specific capacity of 110.1 mA h g-1and a retention of 80.5% after 1000 *** addition,the assembled LicoO2/Li5.4PS4.4cl1.4I0.2membrane/Li pouch cell delivers an initial discharge capacity of 110.4 mA h g-1and 80.5% capacity retention after 100 cycles.

关键词： Argyrodite electrolytes Iodine doping Ionic conductivity Stability All-solid-state lithium battery