检索结果-南通市图书馆

Built-in ESD Protection for RFID Tag ICs

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Electronics 2016年第6期25卷 1058-1062页

作者： DING Yi HU Jianguo DUAN Zhikui wang deming DING Yanyu TAN Hongzhou School of Information Science and Technology Sun Yat-sen University

The built-in Electro-Static discharge(ESD) protection circuits for Radio frequency identification(RFID) tag ICs are proposed. The ESD protection function is built into the rectifier and amplitude *** rectifier and limiter are connected directly to the RF interface, and some transistors can discharge the larger current. These transistors can be used to build ESD protection circuits, through the redesign and optimization. The built-in ESD protection circuits can improve the ESD protection level and reduce the layout area. The circuits have been fabricated in 0.18μm CMOS process. The test results show that the built-in ESD protection circuits work well under 4kV ESD pressure and save as much as 72% of the layout area compare with foundry standard ESD protection cells.

关键词： ESD protection Built-in RFID tag

Prevention and control of coalfield fire technology:A case study in the Antaibao Open Pit Mine goaf burning area,China

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 Mining Science and Technology 2012年第5期22卷 657-663页

作者： Cao Kai Zhong Xiaoxing wang deming Shi Guoqing wang Yanming Shao Zhenlu School of Safety Engineering China University of Mining & Technology Xuzhou 221008 China state Key Laboratory of Coal Resources and Mine Safety China University of Mining & Technology Xuzhou 221008 China

It is very difficult to clearly detect the location of a burning area in a coal mine since it is hidden *** we conducted research on the distribution of the burning area before controlling ***,the original drilling technique was used to analyze and determine the loose and scope of caving of burning area through field test,and then obtained the gases and the temperature data in this area were according to the borehole *** analyzing these data,we found out that the location of burning area concentrated in the loose and caving area;and finally,the location and development of the burning area within the tested area were accurately *** on this theory,we used the ground penetrating radar(GPR) to find out the loose and caving scale in the burning area during the control process of the burning area,and then located the fire-extinguishing boreholes within target which we used to control burning fire in the section.A mobile comprehensive fire prevention and extinguishing system based on the three-phase foam fire prevention and control technique was then adopted and conducted in the burning area which took only 9 months to extinguish the 227,000 m 2 of burning area of 9# *** control technology and experience will provide a very important reference to the control of other coalfield fire and hillock fire in the future.

关键词： Coalfield fire Ground penetrating radar(GPR) Boreholes Three-phase foam

Characteristics of oxygen consumption of coal at programmed temperatures

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

Mining Science and Technology 2010年第3期20卷 372-377页

作者： QI Xuyao wang deming ZHONG Xiaoxing GU Junjie XU Tao State Key Laboratory of Coal Resources and Safe Mining School of Safety EngineeringChina University of Mining&TechnologyXuzhou 221008China

Oxygen consumption is an important index of coal *** order to explore the coal-oxygen reaction,we developed an experimental system of coal spontaneous combustion and tested oxygen consumption of differently ranked coals at programmed *** size of coal samples ranged from 0.18~0.42 mm and the system heat-rate was 0.8℃/*** results show that, for high ranked coals,oxygen consumption rises with coal temperature as a piecewise non-linear *** critical coal temperature is about 50℃.Below this temperature,oxygen consumption decreases with rising coal temperatures and reached a minimum at 50℃,***,it begins to increase and the rate of growth clearly increased with *** low ranked coals,this characteristic is inconspicuous or even *** difference in oxygen consumption at the same temperatures varies for differently ranked *** results show the difference in oxygen consumption of the coals tested in our study reached 78.6%at 100℃.Based on the theory of coal-oxygen reaction,these phenomena were analyzed from the point of view of physical and chemical characteristics,as well as the appearance of the coal-oxygen *** theoretical analyses and our experiments,we conclude that the oxygen consumption at programmed temperatures reflects the oxidation ability of coals perfectly.

关键词： oxygen consumption differently ranked coals programmed temperatures piecewise non-linear process oxidation ability

Corrosion behavior and mechanical property of Mg-4Li-1Ca alloys under micro-compressive stress

在线全文

学校读者我要写书评

暂无评论

Journal of Materials Science & Technology 2024年第8期175卷 170-184页

作者： Yuanyuan wang Chengbao Liu Zuojun Jiao Lei Cai Cong Sun deming wang Lanyue Cui Cuie Wen Rong-Chang Zeng Corrosion Laboratory for Light Metals School of Materials Science and EngineeringShandong University of Science and TechnologyQingdao 266590China School of Engineering RMIT UniversityMelbourneVIC 3001Australia

Biomedical materials may suffer from stress-induced corrosion when performing as implant materials at load-bearing sites, bringing about variations in the microstructure, corrosion resistance, and mechanical properties. In this study, the corrosion behavior and mechanical properties of an extruded Mg-4Li-1Ca alloy were investigated under different micro-compressive stresses (0-6 MPa) using a novel homemade loading device. Under 0-3 MPa of micro-compressive stress, the strong basal texture of extruded Mg-4Li1Ca alloys was weakened and the internal stress gradient stimulated grain boundary migration to induce grain growth. Meanwhile, increased stress resulted in the precipitation of second-phase particles and the accumulation of residual stress, accelerating the corrosion rate due to preferential corrosion. However, with increasing stress, the volume fraction of the second phase increased, becoming the dominant factor controlling the corrosion rate, and residual stress was released for samples under 4.5-6 MPa of microcompressive stress. Hence, surface corrosion product films rapidly formed and served as effective physical barriers, weakening the microstructural effect on the corrosion behavior. The yield strength of Mg-4Li-1Ca alloy reached 95.48 MPa under 3 MPa of micro-compressive stress owing to the dual effects of precipitation strengthening and shear-band strengthening. The relationships between microstructure, corrosion behavior, and mechanical property provide a theoretical foundation for understanding the degradation characteristics of the Mg-4Li-1Ca alloy under physiological loading and practical application.

关键词： Magnesium alloy Biomaterial Compressive stress Texture Corrosion Mechanical property

Experimental research on influence mechanism of loading rates on rock pressure stimulated currents

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

International Journal of Mining Science and Technology 2023年第2期33卷 243-250页

作者： Min Li Zhijun Lin Shiliang Shi deming wang Yi Lu He Li Qing Ye Xiaonan Zhang School of Resource Environment and Safety EngineeringHunan University of Science and TechnologyXiangtan 411201China State Key Laboratory of Coal Resources and Safe Mining China University of Mining and TechnologyXuzhou 221116China School of Safety Engineering China University of Mining and TechnologyXuzhou 221116China

The study of pressure stimulated current(PSC)changes of rocks is significant to monitor dynamic disasters in mines and rock *** existing studies focus on change laws and mechanism of currents generated under the loading of *** electrical and mechanics test system was established in this paper to explore the impacts of loading rates on *** results indicated that PSC curves of different rocks had different change laws under low/high loading *** the loading rate was relatively low,PSC curves firstly changed gently and then increased *** high loading rates,PSC curves experienced the rapid increase stage,gentle increase stage and sudden change *** compressive strength could greatly affect the peak PSC in case of rock *** loading rate was a key factor in average *** low loading rates,the variations of PSCs conformed to the damage charge model of fracture mechanics,while they did not at the fracture *** high loading rates,the PSCs at low stress didn’t fit the model due to the stress impact *** experimental results could provide theoretical basis for the influence of loading rates on PSCs.

关键词： Pressure stimulated current Loading rate Influence mechanism Peak current

Overview of peripheral arteriovenous malformations:From diagnosis to treatment methods

在线全文

学校读者我要写书评

暂无评论

Journal of Interventional Medicine 2023年第4期6卷 169-174页

作者： Yuchen Shen Su Lixin deming wang Xindong Fan Vascular Anomaly Center Department of Interventional TherapyShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineNo.639 Zhi Zao Ju Rd200011ShanghaiChina

Based on the latest classification by the International Society for the Study of Vascular Anomalies in 2018,vascular malformations(VMs)can be categorized into simple,combined,VMs of major named vessels,and VMs associated with other *** VMs include lymphatic,venous,capillary,and arteriovenous malformations(AVMs).AVMs represent disorders of direct arteriovenous shunts caused by the absence of a capillary bed between the involved arteries and *** abnormal vascular communication causes arterial blood to accumulate in the venous vessels,thus resulting in venous hypertension and characteristic clinical manifestations,such as pulsation,tremors,and elevated *** can occur sporadically or as manifestations of syndromic lesions and are considered among the most complex and challenging *** diagnosis and treatment of AVMs can vary depending on the lesion location and associated clinical symptoms,thus complicating their ***,we discuss peripheral AVMs in terms of their clinical manifestations,imaging examinations,and staging systems to provide a comprehensive reference for the treatment,evaluation methods,and follow-up procedures for this vascular anomaly.

关键词： Vascular anomaly Arteriovenous malformation Classification Diagnosis Treatment

Different fates of avermectin and artemisinin in China

在线全文

学校读者我要写书评

暂无评论

Science China(Life Sciences) 2016年第6期59卷 634-636页

作者： Jinsong Chen Jin Miao Mei Liu Xueting Liu Lianqun Bao Yuguo Jiang deming wang Qing Zhang Lixin Zhang Chinese Academy of Sciences Key Laboratory of Pathogenic Microbiology and Immunology Institute of MicrobiologyChinese Academy of Sciences College of Life Sciences University of Chinese Academy of Sciences Shijiazhuang Xingbai Bioengineering Co. Ltd Qilu Pharmaceutical Co. Ltd Inner Mongolia New Veyong Biochemical Co. Ltd

The 2015 Nobel Prize in Physiology or Medicine has been awarded to Youyou Tu,William *** and Satoshiōmura for the discoveries of artemisinin and *** efficacy on parasitic disease treatment won the recognition of the whole world once again,revealing the dawning of the second＂Golden age＂in the development of natural products（http：//***/2u0Rb E）.

关键词： Golden parasitic fermentation http again revolution Campbell Nobel revealing factory

在线全文

学校读者我要写书评

暂无评论

煤矿热动力灾害及特性

煤炭学报 2018年第1期43卷 137-142页

作者：王德明中国矿业大学煤矿瓦斯与火灾防治教育部重点实验室江苏徐州221116 中国矿业大学安全工程学院江苏徐州221116

煤矿热动力灾害被分为瓦斯、火灾、煤尘等灾害分支,未能形成完整的体系,导致其防治缺少系统性和综合性。对国内外发生的煤矿重特大事故进行了系统调研与总结,提出了煤矿热动力灾害概念,构建了煤矿热动力灾害学内容体系。重点对煤矿热动... 详细信息

煤矿热动力灾害被分为瓦斯、火灾、煤尘等灾害分支,未能形成完整的体系,导致其防治缺少系统性和综合性。对国内外发生的煤矿重特大事故进行了系统调研与总结,提出了煤矿热动力灾害概念,构建了煤矿热动力灾害学内容体系。重点对煤矿热动力灾害中的一些热点问题进行了分析,指出了在瓦斯与煤着火的复合灾害、低瓦斯矿井的安全性、抽采瓦斯在防治瓦斯事故中的作用、事故与管理的关系、注惰性介质防灭火的有效性、矿井隔爆设施的作用、事故中的人员逃生等问题上的认识误区。

关键词：热动力灾害事故统计矿井火灾瓦斯爆炸煤尘爆炸

Integrative pan-cancer analysis of cuproplasia-associated genes for the genomic and clinical characterization of 33 tumors

在线全文

学校读者我要写书评

暂无评论

Chinese Medical Journal 2023年第21期136卷 2621-2631页

作者： Xinyu Li Weining Ma Hui Liu deming wang Lixin Su Xitao Yang Department of Interventional Therapy Shanghai Ninth People’s HospitalShanghai Jiao Tong University School of MedicineShanghai 201999China Department of Neurosurgery Shanghai Ninth People’s HospitalShanghai Jiao Tong University School of MedicineShanghai 201999China Department of Pediatrics Shanghai General HospitalShanghai Jiao Tong University School of MedicineShanghai 201620China Department of Nephrology Shanghai Jiao Tong University Affiliated Sixth People’s HospitalShanghai 200060China

Background:The molecular mechanisms driving tumorigenesis have continually been the focus of *** is defined as copper-dependent cell growth and proliferation,including its primary and secondary roles in tumor formation and proliferation through signaling *** this study,we analyzed the differences in the expression of cuproplasia-associated genes(CAGs)in pan-cancerous tissues and investigated their role in immune-regulation and tumor ***:Raw data from 11,057 cancer samples were acquired from multiple ***-cancer analysis was conducted to analyze the CAG expression,single-nucleotide variants,copy number variants,methylation signatures,and genomic signatures of micro RNA(miRNA)-messenger RNA(mRNA)*** Genomics of Drug Sensitivity in Cancer and the Cancer Therapeutics Response Portal databases were used to evaluate drug sensitivity and resistance against *** single-sample Gene Set Enrichment Analysis(ssGSEA)and Immune Cell Abundance Identifier database,immune cell infiltration was analyzed with the ssGSEA score as the ***:Aberrantly expressed CAGs were found in multiple *** frequency of single-nucleotide variations in CAGs ranged from 1%to 54%among different ***,the correlation between CAG expression in the tumor microenvironment and immune cell infiltration varied among different ***7A and ATP7B were negatively correlated with macrophages in 16 tumors including breast invasive carcinoma and esophageal carcinoma,while the converse was true for MT1A and *** addition,we established cuproplasia scores and demonstrated their strong correlation with patient prognosis,immunotherapy responsiveness,and disease progression(P<0.05).Finally,we identified potential candidate drugs by matching gene targets with existing ***:This study reports the genomic characterization and clinical features of CAGs in *** helps clarify the relationsh

关键词： Cuproplasia Pan-cancer Gene Tumor