检索结果-南通市图书馆

在线全文

学校读者我要写书评

暂无评论

上海公共租界治理的多中心特征研究

中国经济史研究 2022年第6期 137-152页

作者：樊果中国社会科学院经济研究所北京100836

本文主要通过考察不同事件,分析中国政府与列强、列强与工部局,及群体、组织与工部局在近代上海公共租界实际治理中的互动和结果,重点关注各类事件中不同行动者间的竞争、冲突、协商过程和解决办法。公共租界多方博弈是在中国主权受到... 详细信息

本文主要通过考察不同事件,分析中国政府与列强、列强与工部局,及群体、组织与工部局在近代上海公共租界实际治理中的互动和结果,重点关注各类事件中不同行动者间的竞争、冲突、协商过程和解决办法。公共租界多方博弈是在中国主权受到侵犯、列强在华相互竞争的背景下发生的,在此背景下,公共租界治理从决策中心、自主权、交叠管辖权、决策中心间相互调整等方面来看带有多中心特征。

关键词：上海公共租界治理多中心

社会福利、群体偏好与市政管理:20世纪20年代初上海公共租界工部局如何应对米市危机

在线全文

学校读者我要写书评

暂无评论

中国经济史研究 2023年第6期 126-136页

作者：樊果中国社会科学院经济研究所北京100836

1919年江苏省重申米禁,严查私运以保障食米供给。然而受多种因素影响,上海米价仍在波动中上涨,上海县公署采取开办平粜、限止米价等措施以抑制米价涨势。1920年6月米价比1919年同期高出3/4强,民间组织要求公共租界工部局与中国政府一同... 详细信息

1919年江苏省重申米禁,严查私运以保障食米供给。然而受多种因素影响,上海米价仍在波动中上涨,上海县公署采取开办平粜、限止米价等措施以抑制米价涨势。1920年6月米价比1919年同期高出3/4强,民间组织要求公共租界工部局与中国政府一同行动,工部局发布了禁止以食米牟取暴利公告。不过《上海洋泾浜北首租界章程》并未授予工部局此类权力,工部局在相关案件审判中败诉后,对租界米店实行执照管理,这遭到民间组织强烈反对。在前一阶段,工部局被视为有效干预了米市,在后一阶段,工部局被视为无端干涉米店营业。面对民间组织的诉求,工部局的态度和行动体现出其对自身角色的认识,表现出经过在舆情与“职权”之间权衡而对米市并未进行实际干预的特点。

关键词：米市工部局民间组织市场干预

Rapid Internal Control Reference Recombinase-Aided Amplification Assays for EBV and CMV Detection

在线全文

学校读者我要写书评

暂无评论

Biomedical and Environmental Sciences 2021年第8期34卷 650-655页

作者： GAO Yuan TIE Yan Qing ZHAO Lin Qing TAN He DING Nan DING Ya Xin guo Qi ZHANG Rui Qing WANG Jin Rong CHEN Zi Wei fan guo Hao SHEN Xin Xin FENG Zhi Shan MA Xue Jun Hebei Medical University Shijiazhuang 050031HebeiChina NHC Key Laboratory of Medical Virology and Viral Diseases National Institute for Viral Disease Control and PreventionChinese Center for Disease Control and PreventionBeijing 102206China Hebei General Hospital Shijiazhuang 050070HebeiChina Laboratory of Virology Beijing Key Laboratory of Etiology of Viral Diseases in ChildrenCapital Institute of PediatricsBeijing 100020China The Third Xiangya Hospital of Central South University Changsha 410013HunanChina Center for Biosafety Mega-Science Chinese Academy of SciencesWuhan 430071Hubei China

Epstein-Barr virus(EBV)and cytomegalovirus(CMV),two of the most prevalent human herpesviruses,cause a wide spectrum of diseases and symptoms and are associated with serious health *** this study,we developed an internal control reference recombinase-aided amplification(ICR-RAA)assay for the rapid detection of EBV and CMV within 30 *** assay had a sensitivity of 5 and 1 copies/test for EBV and CMV,respectively,with no cross reaction with other *** comparison with those of the commercial quantitative polymerase chain reaction(qPCR),the sensitivity of the EBV and CMV ICR-RAAs using extracted DNA was 93.33%and 84.84%,respectively;the specificity was 98.75%and 100.00%,respectively;and the Kappa values were 0.930 and 0.892(P<0.05),*** comparison with those of qPCR,the sensitivity of the EBV and CMV ICR-RAAs using the DNA by thermal lysis was 72.22%and 80.00%,respectively;the specificity was 100.00%。

关键词： specificity Internal EBV

Low tumor infiltrating mast cell density reveals prognostic benefit in cervical cancer

在线全文

学校读者我要写书评

暂无评论

Low tumor infiltrating mast cell density reveals prognostic ...

Geophysical prospecting of copper-nickel deposits in Beishan rift zone, Xinjiang

第十四届全国免疫学学术大会

作者： fan guo Weina Kong Xiumin Ma Tumor Hospital Affiliated to Xinjiang Medical University

Purposes:Studying the role of mast cells(MCs) in tumor immunity was more ***,our study aims to evaluate the prognostic value of MCs and their correlation with immune microenvironment in cervical cancer(CC).Methods:To address this issue,the study investigated the roles of MCs in *** retrospectively collected patient clinical characteristic data and tissue *** relevant conclusions were further verified in TCGA *** mast cell density(MCD) was measured by immunohistochemical staining of tryptase in CC tissues or CIBERSORT algorithm in TCGA ***:The results showed MCs were diffusely distributed in CC ***,we found that MCD was negatively correlated with overall survival(OS),and MCD was an independent prognostic factor of *** results were also obtained in TCGA data.A nomogram was constructed based on differentiation,LNM and MCD with a C-index of 0.772(95% confidence interval,0.733-0.81 1).In addition,differential expression analysis showed that anti-tumor genes or chemokines were regulated in the low MCD *** infiltration of MCs was negatively correlated with CD8T cells,T regulatory cells(Tregs),T follicular helper ***:MCD may be a potential prognostic marker of *** with low MCD benefits OS,and MCD is identified as an independent prognostic *** may be a target of immunotherapy due to immuneactivation.

关键词： mast cells cervical cancer tumor microenvironment

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

China Geology 2021年第1期4卷 126-146页

作者： Jing-zi He Zheng-guo fan Sheng-qing Xiong Teng-fei Ge Xu-zhao Huang Si-xun Wang School of Geophysics and Information Technology China University of GeosciencesBeijing 100083China China Aero Geophysical Survey and Remote Sensing Center for Natural Resources Beijing 100083China

The Beishan rift zone in Xinjiang Uygur Autonomous Region was formed due to strong activities of faults on the basement of the Tarim continental *** the fact that many geological research results of the rift zone have been achieved,only a few studies have been conducted on its regional geophysical *** this paper,the gravity and magnetic anomalies of the rift zone were highlighted through specific data processing of 1∶50000 high-precision aeromagnetic data and gravity data with a grid spacing of 2 km×2 *** on this,the geophysical evidence for the scope and internal structures of the Beishan rift zone was obtained for the first *** distinct characteristics of magnetic and gravity fields in the areas to the north and south of the Beishan rift zone reveal that deep faults exist between the Beishan rift zone and the geological units on the southern and northern ***,the faults on the two areas contain the bidirectional thrusts and have flower-shaped structures according to the characteristics of the magnetic and gravity *** Beishan rift zone can be divided into two tectonomagmatic zones,namely the Zhongposhan-Bijiashan-Cihai-Baishanliang zone(the northern zone)and the Bayiquan-Qixin-Baishan zone(the southern zone).The northern zone can be further subdivided into three comet-shaped anomaly groups(tectonomagmatic areas),while the southern zone can be further subdivided into two tectonomagmatic *** to the characteristics of aeromagnetic anomalies and gravity field,19 mafic-ultramafic complexes were *** known Pobei,Hongshishan,and Qixin complexes are all located within the inferred complexes,with estimates of total explored resources of Ni,Cu,and Au of 3×10^(6) t,10×10^(3) t and 10 t,*** prospecting of high-grade copper-nickel deposits should focus on the periphery and deep parts of the known and inferred mafic-ultramafic *** them,the peripheral strata of the complexes spec

关键词： Rift zone Aeromagnetic anomaly Gravity anomaly Mafic-ultramafic complex Copper-nickel deposit Geological survey engineering Mineral exploration engineering Beishan Xinjiang

H_3BO_3对燃烧法制备SrAl_2O_4:Eu^(2+)、Dy^(3+)、Pr^(3+)发光性能的影响

在线全文

学校读者我要写书评

暂无评论

功能材料 2011年第2期42卷 244-247页

作者：樊国栋肖国平张昭陕西科技大学教育部轻化工助剂化学与技术重点实验室陕西西安710021

以硝酸盐和尿素为基质,采用燃烧法在较低炉温(600～620℃)下制备了SrAl2O4:Eu2+、Dy3+、Pr3+长余辉发光粉体。研究了H3BO3的加入对粉体的相组成、晶体结构、发光性能与长余辉特性的影响。通过对材料的XRD、激发和发射光谱、余辉衰减以... 详细信息

以硝酸盐和尿素为基质,采用燃烧法在较低炉温(600～620℃)下制备了SrAl2O4:Eu2+、Dy3+、Pr3+长余辉发光粉体。研究了H3BO3的加入对粉体的相组成、晶体结构、发光性能与长余辉特性的影响。通过对材料的XRD、激发和发射光谱、余辉衰减以及微观形貌分析。结果表明,H3BO3作为一种助溶剂,当其掺杂摩尔百分含量为0.65%时,有利于SrAl2O4存在合成温度较高,灼烧时间长且所得产物硬度大等缺点,此外,产物经常需研磨,但是研磨后余辉性能会遭到破坏。因此常在原始组份中加入对材料的合成起到促进作用的助溶剂,常用的助溶剂有P2O5、CaF2、H3BO3、NaF等[9]。本文采用燃烧法代替直接的固相混合,其最大的优点是快捷和节能,与高温固相法相纯相的形成。

关键词：燃烧法稀土助溶剂 SrAl2O4 发光材料

Influence of AZ31 sheet treated by cryogenic on punch shearing

在线全文

学校读者我要写书评

暂无评论

Journal of Central South University 2019年第6期26卷 1582-1591页

作者： HU Zhi-qing guo Chao-fan LI Hong-mei Rolling Forging Research Institute Jilin UniversityChangchun 130025China Key Laboratory of Automobile Materials (Ministry of Education) Jilin UniversityChangchun 130025China College of Materials Science and Engineering Jilin UniversityChangchun 130025China

Punch shearing is used to form the part in the material *** treatment(CT)has active effect on local mechanical properties of steel,but it is still uncertain of the influence of CT on the properties of the magnesium alloy during punch *** this work,the influence of AZ31 sheet treated by cryogenic on punch shearing was *** were observed with a ZEISS optical microscope,and mechanical properties,as well as shear properties were tested by tensile testing and punch *** results show that the number of secondary phase increases and a large number of twins appear in the grains after ***,the ultimate tensile strength(UTS),the ductility,and hardness of AZ31 are improved,while the yield strength(YS)decreases gradually during *** punch shearing,the shearing strength decreases,the rollover radius changes insignificantly,and the height of the burr on the edge of the cross section *** the same time,a larger proportion of smooth zone on the cross section has been achieved.

关键词： AZ31 magnesium alloy cryogenic treatment mechanical properties punch shearing

Temperature-induced resistance transition behaviors of melamine sponge composites wrapped with different graphene oxide derivatives

在线全文

学校读者我要写书评

暂无评论

Journal of Materials Science & Technology 2021年第26期85卷 194-204页

作者： Cheng-Fei Cao Wen-Jun Liu Hui Xu Ke-Xin Yu Li-Xiu Gong Bi-fan guo Yu-Tong Li Xiao-Lan Feng Ling-Yu Lv Hong-Tao Pan Li Zhao Jia-Yun Li Jie-Feng Gao guo-Dong Zhang Long-Cheng Tang Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education College of MaterialChemistry and Chemical EngineeringHangzhou Normal UniversityHangzhou 311121China School of Chemistry and Chemical Engineering Yangzhou UniversityYangzhou 225002China

Temperature-re s ponsive resistance transition behaviors of the melamine sponges wrapped with different graphene oxide derivatives(***,wide-ribbon and sheet)were *** sponge composites coated by three types of GO derivatives were prepared by a simple dip-coating *** these composites show good mechanical flexibility and reliability(almost unchanged compressive stress at 70%strain after 100 cycles),high hydrophobicity(water contact angle>120°),excellent flame resistance(self-extinguishing)and structural stability even after burning,which was used to construct the resistance-based fire alarm/warning ***,the different resistance response behaviors of such sensors are strongly dependent on the GO size and network formed on the MF skeleton ***,at a fixed high temperature of~350℃,the three fire alarm sensors show different response time(to trigger the alarm light)of 6.3,8.4 and 11.1 s for nanoribbon,wide-ribbon and sheet at the same concentration,*** structural observation and chemical analysis demonstrated that the discrepancy of temperature-responsive resistance transition behaviors of various GO derivatives was strongly determined by their different thermal reduction degrees during the high-tempe rature or flame treating *** work offers a design and development for construction of smart fire alarm device for potential fire prevention and safety applications.

关键词： Graphene oxide derivatives Fire warning response Structure and morphology Thermal reduction Temperature-responsive resistance transition

Electrospinning of Neat Graphene Nanofbers

在线全文

学校读者我要写书评

暂无评论

Advanced Fiber Materials 2022年第2期4卷 268-279页

作者： Zhanpo Han Jiaqing Wang Senping Liu Qinghua Zhang Yingjun Liu Yeqiang Tan Shiyu Luo fan guo Jingyu Ma Peng Li Xin Ming Chao Gao Zhen Xu MOE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and EngineeringKey Laboratory of Adsorption and Separation Materials and Technologies of Zhejiang ProvinceZhejiang University38 Zheda RoadHangzhou 310027People’s Republic of China State Key Laboratory for Modifcation of Chemical Fibers and Polymer Materials Donghua UniversityShanghai 200051People’s Republic of China State Key Laboratory of Bio-Fibers and Eco-Textiles Collaborative Innovation Center of Marine Biobased Fiber and Ecological Textile TechnologySchool of Materials Science and EngineeringQingdao UniversityQingdao 266071People’s Republic of China

Macroscopic assembly of graphene sheets has renovated the preparation of neat carbonaceous fbers with integrating high performance and superior functionalities,beyond the pyrolysis of conventional polymeric *** date,graphene microfbers by the liquid crystalline wet-spinning method have been ***,how to reliably prepare continuous neat graphene nanofbers remains ***,we present the electrospinning of neat graphene nanofbers enabled by modulating colossally extensional fow state of graphene oxide liquid *** use polymer with mega molecular weight as transient additives to realize the colossal extensional fow and *** neat graphene nanofbers feature high electronic quality and crystallinity and exhibit high electrical conductivity of 2.02×10^(6) S/m that is to be comparable with single crystal graphite *** electrospinning of graphene nanofbers was extended to prepare large-area fabric with high fexibility and superior specifc electrical/thermal *** electrospinning of graphene nanofbers opens the door to nanofbers of rich two-dimensional sheets and the neat graphene nanofbers may grow to be a new species after conventional carbonaceous nanofbers and whiskers in broad functional applications.

关键词： Electrospinning Graphene nanofber Functional fabrics