检索结果-南通市图书馆

Chinese Journal of Structural Chemistry 2004年第4期23卷 361-365+352页

作者： li Jian-Ronga, b XIE Ya-Bob CAI li-Zhena GUO Guo-Conga② BU xian-Heb② HUANG jin-Shuna a (State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, The Chinese Academy of Sciences, Fuzhou, Fujian 350002, China) b (department of Chemistry, Nankai university, Tianjin 300071, China) 中科院福建物质结构所 State Key Laboratory of Structural ChemistryCAS 福建 Fuzhou 350002 department of Chemistry Nankai University 天津 300071

An ion-pair compound, [HL]2[Ni(CN)4]4H2O 1 has been obtained as an unexpected product when we attempt to prepare a heterometallic cyano-bridged complex by the reaction of GdCl3nH2O, K2Ni(CN)4 and L (L=4-(2-hydroxyphenyl)-1,5,9-triazacyclododecan-2-one) in aqueous solution, and characterized by single-crystal X-ray diffraction. It crystallizes in monoclinic, space group P21/n with a = 12.380(1), b = 9.9637(8), c = 17.087(1) ? ?= 105.947(2)? V = 2026.6(3) ?, Rint = 0.0509, Z = 2, Dc = 1.297 g/cm3, C34H56O8N10Ni, Mr = 791.60, F(000) = 844, m(MoKa) = 0.538 mm1, S = 1.030, the final R = 0.0644 and wR = 0.1299 for 2023 observed reflections with I ≥ 2(I). The title compound 1 contains one anion of [Ni(CN)4]2, two cations of [HL]+ and four packing water molecules, which are held together by the NH···O and OH···O hydrogen bonds to form a three- dimensional framework.

关键词： tetracyanonickelate anion macrocyclic triamine cation crystal structure

基于社交网络的正念认知疗法在甲状腺癌术后患者中的应用效果

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

中国临床心理学杂志 2024年第3期32卷 700-706页

作者：汪志红肖旺李津何秋盛彩华谌红献黄秋平汪明明中南大学湘雅二医院甲状腺外科长沙410011 中南大学湘雅三医院麻醉科长沙410013 中南大学精神卫生研究所长沙410011 湖南中医药大学长沙410208

目的:探讨基于社交网络的正念认知疗法对甲状腺癌术后患者焦虑、抑郁、自我形象、颈部瘢痕满意度及生活质量的影响。方法:采用便利抽样法,选取长沙市某三级甲等医院甲状腺外科接受传统开放甲状腺癌根治手术患者120例。将其随机分为对照... 详细信息

目的:探讨基于社交网络的正念认知疗法对甲状腺癌术后患者焦虑、抑郁、自我形象、颈部瘢痕满意度及生活质量的影响。方法:采用便利抽样法,选取长沙市某三级甲等医院甲状腺外科接受传统开放甲状腺癌根治手术患者120例。将其随机分为对照组和干预组,每组60例。对照组接受甲状腺外科常规护理,干预组在对照组的基础上接受基于社交网络的正念认知疗法,干预时间8周。结果:干预后,干预组焦虑、抑郁、自我形象得分显著低于对照组(P<0.05),瘢痕满意度量表的瘢痕意识、外观满意度、症状满意度3个维度得分显著低于对照组(P<0.05),生活质量总分及躯体、角色、情绪、认知、社会5个功能维度得分均显著高于对照组(P<0.05)。结论:基于社交网络的正念认知疗法能有效改善传统开放甲状腺癌根治术后患者负性情绪,提升自我形象水平,增加颈部瘢痕满意度,并提高其生活质量。

关键词：甲状腺癌正念认知疗法焦虑抑郁自我形象瘢痕满意度生活质量

Synthesis of n-Butyl Acetate by Microwave Irradiation Under the Assistance of Solid-liquid Phase Transfer Catalysis Without Solvent

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

Chemical Research in Chinese Universities 1992年第3期8卷 324-326页

作者： XU Wen-guo, liU Fu-an, YU Ai-min, li Yao-xian, jin Shen-xi,liU Jun and jin Qin-han (department of Chemistry, Jilin university, Changchun, 130023)

Introduction Microwave irradiation has been very widely used in heating, cooking and brewing. Several papers which describe the use of domestic microwave ovens to perform rapid organic synthesis in solution have been published. The high heating efficiency gives rise to remarkable rate of reaction and dramatic reduction of reaction time. Nevertheless, its application seems to be limited to these procedures because of

关键词： Microwave irradiation Phase transfer catalysis Synthesis n-Butyl ace-tate Inorganic support

Frontiers in high entropy alloys and high entropy functional materials

在线全文

学校读者我要写书评

暂无评论

Rare Metals 2024年第10期43卷 4639-4776页

作者： Wen-Tao Zhang Wen Huang Fu-Jie Yu Qi Zhao Xin-Dong Zhu Tao Feng Yao Jiang Xiao-Ming li Xue-Fei Miao He Zhu Si Lan Xue-Qian Wang Bao-Long Shen Zhe Jia Feng-Qi Zhang Wei Wang Qi liu Yang Ren Xun-li Wang Xiao-Ya Cui Xiao-Yang Wang Ya-Nan Chen Bing-Bing Fan Meng-Ru li Qi-Long Gao Jia-Ming Guo Zeng-Bao Jiao Zhi-Min Guo Yu-Ping Zhao Qian Yu Rui Huang ling-Kun Zhang Yi-Ping Lu Xu-Bo li Huai-Jun lin Yan Ma Wei-Ming Yang Zhi-Hua Shen Hai-Yan He Yong-Gang Sun Yong-Jiang Huang De-Zhuang Wang Qing-Feng liu Fei-Yang Wang Hui liu Hong-Hui Wu li-Qiang Wang Yang Lu Nan Wang Tian-li Wang Wei-Bing liao Yi-Han Wang Yuan Wu Yu-Zhen Yin Jie Pan Yi Zhang Qing Wang Jian-Yang Zhang Tao Yang Yasir Sohail jin-Yu Zhang Hua Ji Qiang li Wei-Di liu Zhi-Gang Chen Xiong-Jun liu Wen Ma liang Mao Zhen-Duo Wu School of Materials Science and Engineering Nanjing University of Science and Technology Jiangsu Key Laboratory for Advanced Metallic Materials School of Materials Science and Engineering Southeast University department of Physics City University of Hong Kong School of Materials Science and Engineering Tianjin University School of Physics and Microelectronics Zhengzhou University department of Mechanical Engineering Research Institute for Advanced Manufacturing The Hong Kong Polytechnic University Center of Electron Microscopy and State Key Laboratory of Silicon Materials School of Materials Science and Engineering Zhejiang University Key Laboratory of Solidification Control and Digital Preparation Technology (liaoning Province) School of Materials Science and Engineering Dalian University of Technology Institute of Advanced Wear & Corrosion Resistance and Functional Materials Jinan University School of Mechanics and Civil Engineering China University of Mining and Technology School of Physical Sciences Great Bay University School of Materials Science andEngineering Harbin Institute of Technology State Key Laboratory of Materials-Oriented Chemical Engineering College of Chemical Engineering Nanjing Tech University Beijing Advanced Innovation Center for Materials Genome Engineering Research Institute for Carbon Neutrality University of Science and Technology Beijing department of Mechanical Engineering The University of Hong Kong School of Computing Macquarie University Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province College of Physics and Optoelectronic Engineering Shenzhen University State Key Laboratory for Advanced Metals and Materials University of Science and Technology Beijing State Key Laboratory of Materials Processing and Die & Mould Technology School of Materials Science and Engineering Huazhong University of Science and Technology Institute of materials Shanghai University department of Materials Science and Engineering C

Owing to their exceptional properties, high-entropy alloys(HEAs) and high-entropy materials have emerged as promising research areas and shown diverse applications. Here,the recent advances in the field are comprehensively reviewed,organized into five sections. The first section introduces the background of HEAs, covering their definition, significance,application prospects, basic properties, design principles, and microstructure. The subsequent section focuses on cutting-edge high-entropy structural materials, highlighting developments such as nanostructured alloys, grain boundary engineering,eutectic systems, cryogenic alloys, thin films, micro-nano-lattice structures, additive manufacturing, high entropy metallic glasses, nano-precipitate strengthened alloys, composition modulation, alloy fibers, and refractory systems. In the following section, the emphasis shifts to functional materials, exploring HEAs as catalysts, magneto-caloric materials, corrosion-resistant alloys, radiation-resistant alloys, hydrogen storage systems, and materials for biomedicine. Additionally, the review encompasses functional high-entropy materials outside the realm of alloys, including thermoelectric, quantum dots, nanooxide catalysts, energy storage materials, negative thermal expansion ceramics,and high-entropy wave absorption materials. The paper concludes with an outlook, discussing future directions and potential growth areas in the field. Through this comprehensive review,researchers, engineers, and scientists may gain valuable insights into the recent progress and opportunities for further exploration in the exciting domains of high-entropy alloys and functional materials.

关键词： Cutting-edge structural materials Cutting-edgefunctional materials High entropy alloys

腓骨固定在胫腓骨关节外骨折中治疗效果的Meta分析

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

中国骨伤 2024年第1期37卷 74-80页

作者：丛琳琳蒋品品郭华汪航车先达王春芳李文晋李鹏翠山西医科大学基础医学院生物化学与分子生物学教研室山西太原030001 山西医科大学第二医院骨与软组织损伤修复山西省重点实验室山西太原030001 山西医科大学第二医院骨科山西太原030001 山西医科大学山西太原030001 山西医科大学实验动物中心山西太原030001 山西医科大学第二临床医学院口腔科山西太原030001

目的:通过Meta分析比较腓骨固定在胫腓骨关节外骨折中的作用及重要性。方法:通过对中国知网、维普、万方、The Cochrane library、Web of science、Pubmed等数据库关于固定腓骨与否对胫腓骨关节外骨折治疗疗效比较的相关文献进行检索,... 详细信息

目的:通过Meta分析比较腓骨固定在胫腓骨关节外骨折中的作用及重要性。方法:通过对中国知网、维普、万方、The Cochrane library、Web of science、Pubmed等数据库关于固定腓骨与否对胫腓骨关节外骨折治疗疗效比较的相关文献进行检索,检索时间为2012年1月至2022年2月,使用RevMan 5.3软件进行统计分析。对腓骨固定组与不固定组的复位不良率、旋转畸形率、内翻或外翻畸形率、前或后发畸形率、不愈合率、术后感染率、二次手术率及手术时间进行比较。结果:共纳入11篇文献,6篇随机对照研究和5篇病例对照研究,有8篇为高质量文献,共813例患者,其中腓骨固定治疗383例,未固定腓骨430例。Meta分析结果显示,与未固定腓骨相比,治疗胫腓骨关节外骨折时固定腓骨可以降低术后旋转畸形率[RR=0.22,95%CI(0.10,0.45),P0.05)。结论:在治疗胫腓骨关节外骨折时腓骨固定组相较于不固定组在防止旋转畸形和内翻或外翻畸形以及促进愈合方面更具优势。

关键词：胫骨腓骨骨折固定 Meta分析

light-driven biohybrid system utilizes N2 for photochemical CO2 reduction

在线全文

学校读者我要写书评

暂无评论

National Science Review 2023年第7期10卷 159-171页

作者： jin-Yue Zeng Xiao-Shuang Wang Xin-Hua liu Qian-Ru li Jun Feng xian-Zheng Zhang Key Laboratory of Biomedical Polymers of Ministry of Education and Department of Chemistry Wuhan University Wuhan Research Centre for Infectious Diseases and Cancer Chinese Academy of Medical Sciences

Attempting to couple photochemical CO2reduction with N2fixation is usually difficult,because the reaction conditions for these two processes are typically ***,we report that a light-driven biohybrid system can utilize abundant,atmospheric N2to produce electron donors via biological nitrogen fixation,to achieve effective photochemical *** biohybrid system is constructed by incorporating molecular cobalt-based photocatalysts into N2-fixing *** is found that N2-fixing bacteria can convert N2into reductive organic nitrogen and create a localized anaerobic environment,which allows the incorporated photocatalysts to continuously perform photocatalytic CO2reduction under aerobic ***,the light-driven biohybrid system displays a high formic acid production rate of over 1.41×10-14mol h-1cell-1under visible light irradiation,and the organic nitrogen content undergoes an over-3-fold increase within 48 *** work offers a useful strategy for coupling CO2conversion with N2fixation under mild and environmentally benign conditions.

关键词： biohybrid photocatalysis CO2 reduction nitrogen fixation bacterium

TMB相关免疫浸润调控评分(MOTIF)预测免疫治疗响应并指导联合增效

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Science Bulletin 2024年第6期69卷 803-822页

作者：钱政宇潘艺芊李薛鑫陈衍行吴灏祥刘泽先 Martin Kosar Jiri Bartek 王梓贤徐瑞华 department of Medical Oncology Sun Yat-sen University Cancer CenterState Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineGuangdong Provincial Clinical Research Center for CancerResearch Unit of Precision Diagnosis and Treatment for Gastrointestinal CancerChinese Academy of Medical SciencesGuangzhou 510060China Science for life Laboratory Division of Genome BiologyDepartment of Medical Biochemistry and BiophysicsKarolinska InstituteStockholm S-17121Sweden department of General Surgery The Fourth Affiliated HospitalChina Medical UniversityShenyang 110032China Bioinformatics Platform Sun Yat-sen University Cancer CenterGuangzhou 510060China Zhejiang university-university of Edinburgh Institute Zhejiang University School of MedicineHaining 314400China Edinburgh Medical School Biomedical SciencesCollege of Medicine and Veterinary MedicineThe University of EdinburghEdinburgh EH11LTUK Danish Cancer Society Research Center Copenhagen DK-2100Denmark Laboratory of Artificial Intelligence and Data Science Sun Yat-sen University Cancer CenterGuangzhou 510060China

Patients with high tumor mutational burden(TMB)levels do not consistently respond to immune checkpoint inhibitors(ICIs),possibly because a high TMB level does not necessarily result in adequate infiltration of CD8^(+)T *** bulk ribonucleic acid sequencing(RNA-seq)data from 9311 tumor samples across 30 cancer types,we developed a novel tool called the modulator of TMB-associated immune infiltration(MOTIF),which comprises genes that can determine the extent of CD8^(+)T cell infiltration prompted by a certain TMB *** confirmed that MOTIF can accurately reflect the integrity and defects of the cancer-immunity *** analyzing 84 human single-cell RNA-seq datasets from 32 types of solid tumors,we revealed that MOTIF can provide insights into the diverse roles of various cell types in the modulation of CD8^(+)T cell *** pretreatment RNA-seq data from 13 ICI-treated cohorts,we validated the use of MOTIF in predicting CD8^(+)T cell infiltration and ICI *** the components of MOTIF,we identified EMC3 as a negative regulator of CD8^(+)T cell infiltration,which was validated via in vivo ***,MOTIF provided guidance for the potential combinations of programmed death 1 blockade with certain immunostimulatory drugs to facilitate CD8^(+)T cell infiltration and improve ICI efficacy.

关键词： Tumor mutational burden Immunotherapy Cancer-immunity cycle Treatment efficacy prediction CD8^(+)T cell infiltration Combination therapy

Zr_(55)Al_(10)Ni_(5)Cu_(30)amorphous alloy film prepared by magnetron sputtering method

在线全文

学校读者我要写书评

暂无评论

Rare Metals 2021年第8期40卷 2237-2243页

作者： Dong-Mei Mi Sheng-li Zhu Yan-Qin liang Zhao-Yang li Zhen-Duo Cui xian-jin Yang Akihisa Inoue School of Materials Science and Engineering Tianjin UniversityTianjin300072China Tianjin Key Laboratory of Composite and Functional Materials Tianjin300072China Key Laboratory of Advanced Ceramics and Machining Technology Ministry of EducationTianjin300072China department of Physics Kings Abudulaziz UniversityJeddah22254Saudi Arabia

In this work,amorphous Zr_(55)Al_(10)Ni_(5)Cu_(30)alloy thin film was prepared on D36 steel substrate by magnetron sputtering *** film was characterized by scanning electron microscopy(SEM),X-ray diffraction(XRD),atomic force microscopy(AFM),hardness tester and nano *** behavior of the film was investigated in 3.5%NaCl aqueous solutions by an electrochemical *** room temperature,the amorphous alloy film was formed completely after sputtering for 5 *** surface morphology of the amorphous alloy film was uniform and *** of the amorphous alloy film improved the microhardness and corrosion resistance of the D36 *** amorphous alloy film(prepared at room temperature for 5 h)exhibited good adhesion strength with the *** as-sputtered sample exhibited a crevice corrosion trend when the sputtering time was too short(1 h)or too long(10 h).

关键词： Magnetron sputtering Amorphous alloy Thin film Corrosion resistance Zr_(55)Al_(10)Ni_(5)Cu_(30)

Microstructure and mechanical properties of TC4 joints brazed with Ti-Zr-Cu-Sn amorphous filler alloy

在线全文

学校读者我要写书评

暂无评论

Rare Metals 2021年第7期40卷 1881-1889页

作者： Hui-Hui Zhang Zhen-Duo Cui Sheng-li Zhu Shi-Wei Guo xian-jin Yang Akihisa Inoue School of Materials Science and Engineering Tianjin UniversityTianjin 30007China Key Laboratory of Advanced Ceramics and Machining Technology Ministry of EducationTianjin 300072China Tianjin Key Laboratory of Composite and Functional Materials Tianjin 300072China department of Physics King Abdulaziz UniversityJeddah 22254Saudi Arabia

The Ti_(51.44)Zr_(16.26)Cu_(30)Sn_(2.3)(at%)amorphous filler alloy in a ribbon form was prepared by melt *** Ti-6 Al-4 V alloy was brazed in vacuum furnace by using the Ti_(51.44)Zr_(16.26)Cu_(30)Sn_(2.3)amorphous filler *** effects of brazing temperature and holding time on the interfacial microstructure and mechanical properties of the Ti-6 Al-4 V brazed joints were *** brazed joints are composed ofα-Ti,β-Ti,and(Ti,Zr)_(2)Cu *** shear strength of the joints increases with brazing temperature increasing from 1153 to 1193 K and holding time from 10 to 15 min,while decreases with brazing temperature and time further *** temperature brazing results in the formation of microcracks and voids in the seams,which are harmful for the shear strength of the *** the joint brazed at 1193 K for 15 min,a fineα+βWidmansta¨tten structure beneficial to the mechanical property is formed,and the joint exhibits relatively high joint strength of 180 MPa.

关键词： Amorphous alloy Brazing Titanium alloy Microstructure Mechanical property

Biosensor Based on TTF@SiO_2 Nanoparticles as Electron Transfer Mediator for the Determination of Glucose

在线全文

学校读者我要写书评

暂无评论

Chemical Research in Chinese Universities 2006年第4期22卷 474-478页

作者： li Xiao-hua xian Yue-zhong MIN Hong li Chen-xin XIE Zong-hong ZHANG Fen-fen jin li-tong department of Chemistry East China Normal University Shanghai 200062 P. R. China

Tetrathiafulvalene（TTF） was doped in an SiO2 network and the resulting nanocompesite was used as a mediator for the selective detection of glucose. The uniform TTF-doped silica（TIT@SiO2 ） nanoparticles were prepared by the water-in-oil（W/O） microemulsion method, and were characterized by transmission electron microscopy（TEM）. The core-shell structure TTF@ SiO2 could prevent TIT from leaching out into an aqueous solution. Combined with chitosan （CHIT）, which serves as a scaffold for glucose oxidase and nanocomposite immobilization, the GCE/TTF@ SiO2- CHIT-GOx biosensor was developed. Under optimal conditions, the biosensors exhibit a linear range of 1.0 × 10^-5 5 × 10^-3 mol/L with a detection limit down to 5.0 μmol/L（S/N = 3 ）. The excellent selectivity, sensitivity, and stability of the glucose biosensor show its potential for practical applications.

关键词： TTF@ SiO2 nanoparticle Chitosan Glucose Biosensor