检索结果-南通市图书馆

Acta Metallurgica Sinica(English Letters) 2018年第12期31卷 1311-1316页

作者： Qiang Li Yun-Bo Zhong Chu-Xiong Sun Huai Wang Tian-xiang zheng Wei-Li Ren Zhong-Ming Ren State Key Laboratory of Advanced Special Steels Shanghai University

The voltage was recorded to investigate the influence of the static magnetic field on droplet evolution during the mag-netically controlled electroslag remelting （MC-ESR） process. MC-ESR experiments were carried out under differentremelting current, and transverse static magnetic fields （TSMF） of 85 mT, 130 mT and 160 mT were *** work was performed to obtain the quantitative data of the droplets. The ASPEX Explorer was utilized toinvestigate the inclusions evolution of GCr15 ingots. The number of the droplets was 31 in 20 s during the traditional ESRprocess and reached 50 and 51 under the MC-ESR process with the TSMF of 85 mT and 130 mT, respectively. Whencompared the traditional ESR process with the MC-ESR process, the inclusions amount reduced 67%.

关键词： Electroslag remelting Static magnetic field Droplet transient Inclusions evolution Electromagnetic vibration effect

CD137 costimulation enhances the antiviral activity of Vγ9Vδ2-T cells against influenza virus

在线全文

学校读者我要写书评

暂无评论

Signal Transduction and Targeted Therapy 2020年第1期5卷 1746-1755页

作者： Yujun Pei Kun Wen zheng xiang Chunyu Huang Xiwei Wang Xiaofeng Mu Liyan Wen Yinping Liu Wenwei Tu Department of Paediatrics and Adolescent Medicine Li Ka Shing Faculty of MedicineThe University of Hong KongHong KongChina

Influenza epidemics and pandemics are constant threats to global public *** strategies including vaccines and antiviral drugs have achieved great advances in controlling influenza virus infection,the efficacy of these strategies is limited by the highly frequent mutations in the viral genome and the emergence of drug-resistant *** previous study indicated that boosting the immunity of human Vγ9Vδ2-T cells with the phosphoantigen pamidronate could be a therapeutic strategy to treat seasonal and avian influenza virus ***,one notable drawback ofγδ-T cell-based immunotherapy is the rapid exhaustion of proliferation and effector responses due to repeated treatments with ***,we found that the expression of CD137 was inducible in Vγ9Vδ2-T cells following antigenic ***137^(+)Vγ9Vδ2-T cells displayed more potent antiviral activity against influenza virus than their CD137−counterparts in vitro and in Rag2^(-/-)γc^(-/-)*** further demonstrated that CD137 costimulation was essential for Vγ9Vδ2-T cell activation,proliferation,survival and effector *** humanized mice reconstituted with human peripheral blood mononuclear cells,CD137 costimulation with a recombinant human CD137L protein boosted the therapeutic effects of pamidronate against influenza *** study provides a novel strategy of targeting CD137 to improve the efficacy of Vγ9Vδ2-T cell-based immunotherapy.

关键词： CD137 influenza drugs

Integrated ecosystem assessment for western development of China

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 Geographical Sciences 2002年第2期12卷 4-11页

作者： Liu Ji-yuan Masataka Watanabe Yue Tian-xiang Ouyang Hua Deng xiang-zheng CAS Institute of Geographic Sciences and Natural Resources Research Beijing China (GRID:grid.9227.e) (ISNI:***) National Institute for Environmental Studies Water & Soil Environment Division Japan (GRID:grid.140139.e) (ISNI:***)

The objectives of Integrated Ecosystem Assessment for Western Development of China includes: (1) providing scientific basis for ecosystem protection, ecosystem management and ecological construction in the western development; (2) developing complete database and analytical tools and strengthening decision-making support capacity; and (3) improving ecosystem management in China, spreading ecological knowledge to the public, serving decision-making of local and central governments, and promoting socio-economic sustainable development. The design and implementation of the project are of significance under the macro background of western development of China. By the integrated assessment of western China, we can get the first-hand data covering all the environmental factors as well as disclose the situations and their changing trends of ecosystem in the western part of China, which will benefit the decision-making for the central and local governments in the implementation of the western development strategy. In other words, the implementation of the project, to a certain extent, can guarantee the regional sustainable development of western China.

关键词： ecosystem assessment Ecosystem Assessment System DIS DSS ecological zone western development China

加装感应电机阻尼器的组合式次同步谐振抑制方案

在线全文

学校读者我要写书评

暂无评论

电力系统自动化 2011年第2期35卷 6-10页

作者：郑翔徐政浙江大学电气工程学院浙江省杭州市310027

附加励磁阻尼控制器(SEDC)作为一种造价较低的电力系统次同步谐振(SSR)抑制装置,已经应用于多个电力系统的实际工程。但是研究和实验表明,当系统受到大的扰动时,SEDC可能无法彻底抑制SSR的发生。为了弥补SEDC在暂态故障时阻尼不足的缺点... 详细信息

附加励磁阻尼控制器(SEDC)作为一种造价较低的电力系统次同步谐振(SSR)抑制装置,已经应用于多个电力系统的实际工程。但是研究和实验表明,当系统受到大的扰动时,SEDC可能无法彻底抑制SSR的发生。为了弥补SEDC在暂态故障时阻尼不足的缺点,提出了一种组合式SSR抑制方案。通过SEDC的反馈控制持续地提供阻尼,抑制稳态和小扰动时SSR的发生;在系统受到大扰动后,通过在发电机轴系一端加装感应电机阻尼器(IMDU)来抑制故障时的暂态力矩放大。基于IEEE次同步谐振第一标准测试系统的仿真分析表明,所提出的组合式次同步谐振抑制方案能较好地防范电力系统在稳态和暂态产生SSR的风险。

关键词：次同步谐振附加励磁阻尼控制器感应电机阻尼器谐振抑制

Epoxidation of propylene by molecular oxygen over unsupported AgCu_x bimetallic catalyst

在线全文

学校读者我要写书评

暂无评论

Rare Metals 2015年第7期34卷 477-490页

作者： xiang zheng Yang-Long Guo Yun Guo Qing Zhang Xiao-Hui Liu Li Wang Wang-Cheng Zhan Guan-Zhong Lu Key Laboratory for Advanced Materials Research Institute of Industrial Catalysis East China University of Science and Technology

The unsupported Cu and Ag catalysts with different oxidation states were prepared, and their catalytic performances for propylene epoxidation were *** metallic Cu catalyst exhibits much higher catalytic activity and propylene oxide(PO) selectivity than Cu2 O and Cu O *** Cu0 species are the main active sites for propylene epoxidation, but Cu2 O and Cu O species are in favor of CO2 and acrolein *** PO selectivity of 54.2 % and propylene conversion of 2.6 % can be achieved over the metallic Cu catalyst at 160 °C in initial stage, but metallic Cu catalyst would be oxidized to Cu2 O during propylene epoxidation, resulting in a sharp decrease in the PO selectivity and propylene *** Ag Cuxbimetallic catalysts were *** is found that adding Ag to the metallic Cu catalysts can prevent the oxidation of Cu and make Ag Cuxbimetallic catalysts more stable under the condition of propylene *** Ag/Cu molar ratio can remarkably affect the catalytic performance of Ag Cuxcatalyst and the selectivity to PO and *** Ag Cuxwas supported on MOx-modified a-Al2O3, its catalytic performance can be improved and has a close relationship with the acid–base property of support.

关键词： Epoxidation of propylene Propylene oxide Molecular

Analysis on Family-based Senior Nursing After Children “Visiting Home Often” was Written into the Law

在线全文

学校读者我要写书评

暂无评论

China Population Today 2013年第5期30卷 9-11页

作者： xiang zheng

Since the implementation of the newly revised Law on Protection of the Rights and Interests of the Elderly,the society has attached continuous concern to the feasibility,and legal and ethical boundaries of the clause of children'visiting home often'.How to support family-based senior nursing has become an important area for discussion.

关键词：法律儿童护理基础家庭主页

Large aftershocks triggering by Coulomb failure stress following the 2001 MS=8.1 great Kunlun earthquake

在线全文

学校读者我要写书评

暂无评论

Acta Seismologica Sinica(English Edition) 2004年第1期17卷 31-37页

作者： HAO Ping(郝平) FU zheng-xiang(傅征祥) TIAN Qin-jian(田勤俭) LIU Jie(刘杰) LIU Gui-ping(刘桂萍) Center for Analysis and Predication China Seismological Bureau Beijing 100036 China Center for Analysis and Predication China Seismological Bureau Beijing 100036 China Center for Analysis and Predication China Seismological Bureau Beijing 100036 China Center for Analysis and Predication China Seismological Bureau Beijing 100036 China Department of Earthquake Monitoring and Predication China Seismological Bureau Beijing 100036 China

The great Kunlun earthquake occurred on Nov. 14, 2001 in Qinghai Province, China. Five large aftershocks with magnitude larger than 5.0 occurred near the Kunlun fault after main shock. Calculations of the change in Coulomb failure stress reveal that 4 of 5 large aftershocks occurred in areas with Dsf >0 (10-2~10-1 MPa) and one aftershock occurred in an area with Dsf =-0.56 MPa. It is concluded that the permanent fault displacement due to the main shock is the main cause of activity of large aftershocks, but not the whole cause.

关键词： Kunlun great earthquake aftershocks triggering Coulomb failure stress

Comprehensive evaluation of rare case:From diagnosis to treatment of a sigmoid Schwannoma:A case report

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastrointestinal Oncology 2024年第1期16卷 244-250页

作者： Jing-Yi Li Xi-Zhuang Gao Jian Zhang xiang-zheng Meng Yi-Xian Cao Kun Zhao Clinical Medical College of Jining Medical University Jining Medical UniversityJining 272000Shandong ProvinceChina Department of Gastroenterology The First People's Hospital of JiningJining 272000Shandong ProvinceChina

BACKGROUND Schwannomas are uncommon tumors originating from Schwann cells,forming the neural *** account for approximately 2%-6%of all mesenchymal tumors and are most commonly identified in peripheral nerve trunks,with rarity in the gastrointestinal *** gastrointestinal locations,the stomach harbors the majority of nerve sheath tumors,while such occurrences in the sigmoid colon are exceptionally *** SUMMARY This study presented a clinical case involving a 60-year-old female patient who,during colonoscopy,was diagnosed with a submucosal lesion that was later identified as a nerve sheath *** patient underwent surgical resection,and the diagnosis was confirmed through *** study highlighted an exceptionally uncommon occurrence of a nerve sheath tumor in the sigmoid colon,which was effectively managed within our ***,a comprehensive review of relevant studies was *** The preoperative diagnosis of nerve sheath tumors poses challenges,as the definitive diagnosis still relies on pathology and *** categorized as benign,these tumors have the potential to demonstrate malignant ***,the optimal treatment approach entails the complete surgical excision of the tumor,ensuring the absence of residual lesions at the margins.

关键词： Schwannoma Gastrointestinal stromal tumors Treatment Sigmoid colon Case report

Transfer function measurement for the SSRF SRF system

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

Nuclear Science and Techniques 2019年第6期30卷 129-137页

作者： Yang-Yang Xia Zhen-Tang Zhao Yu-Bin Zhao xiang zheng Kai Xu Zhi-Gang Zhang Shen-Jie Zhao Qiang Chang Shanghai Institute of Applied Physics Chinese Academy of Sciences Shanghai 201800 China University of Chinese Academy of Sciences Beijing 100049 China

A digital transfer function measurement system has been embedded in the low-level radio frequency (LLRF) system of the storage ring of the Shanghai Synchrotron Radiation Facility. The measurement results indicate that the decreased control accuracy at high current is primarily owing to ripples from the high-voltage power supply, the transient beam loading effect, and the digital aliasing effect. The current LLRF algorithm is not able to suppress these disturbances.

关键词： Transfer function Ripples of HVPS Transient beam loading effect

A Case of Target Immunotherapy Combined with Interventional Therapy for Massive Liver Cancer

在线全文

学校读者我要写书评

暂无评论

Journal of Biosciences and Medicines 2023年第2期11卷 208-214页

作者： Ruidong Zhao xiang zheng Zhuhai Hospital Affiliated to Jinan University Zhuhai China

This article reports a case of massive hepatocellular carcinoma. After intervention combined with targeted and immunotherapy, it was successfully cured by surgical resection, which provides some experience for the comprehensive treatment of liver cancer, and also improves the understanding of systematic treatment of liver cancer, so as to improve the understanding and diagnosis of the disease.

关键词： Hepatocellular Carcinoma Targeted Therapy Immunotherapy Interventional Therapy