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金属塑性成型理论研究的进展

固体力学学报 1982年第1期 137-145页

作者：陈如欣许剑欧邓立信张树纲重庆大学

本文综述了近年来金属塑性成型理论在基本规律、成型力学问题解法、外摩擦及成型过程模拟实验技术等方面的进展.

关键词：金属塑性成型力学问题塑性变形成型过程模拟实验范性变形外摩擦

Clinicopathological differences between patients with schistosomal appendicitis and non schistosomal appendicitis:A retrospectively study of past ten years

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World Journal of Clinical Cases 2025年第2期13卷 24-32页

作者： Xiao-Yi Wang Yao Hao Zi-jian Wang Xiu-Liang xu jiang-Hua Yang Department of Infectious Diseases The First Affiliated of Wannan Medical CollegeWuhu 241001Anhui ProvinceChina

BACKGROUND Chronic schistosomiasis causes multiple organ and multiple system diseases,especially the digestive *** eggs are mainly deposited in the stomach,liver and colorectal,but a few eggs are deposited in the appendix and cause *** present,there are few studies on schistosomal *** To explore the differences in epidemiological,clinical and pathological characteristics between schistosomal appendicitis and non-schistosomal appendicitis over the past decade in order to assess the impact of schistosomiasis on *** The differences of general data,clinical data and laboratory examination data of patients with appendicitis from October 2013 to October 2023 were retrospectively *** patients were divided into two groups for *** were 136 patients in schistosomal appendicitis group and 5418 patients in non-schistosomal appendicitis *** Schistosomal appendicitis accounted for 2.45%of all patients with appendicitis,and the annual proportion in the past decade was 2.2%,2.9%,1.8%,1.9%,3.4%,3.1%,1.9%,1.6%,3%,2.6%,*** prevalence of schistosomal appendicitis was middle-aged and elderly males,with an average age of 61.73±15.335 *** main population of non-schistosomal appendicitis was middle-aged men,with an average age of 35.8±24.013 years(P<0.001).The distribution of pathological types of appendicitis was different between the two groups(P<0.001).The incidence of acute suppurative appendicitis in non-schistosomal appendicitis was higher than that in schistosomal appendicitis[odds ratio(OR)=0.504;95%confidence interval(CI):0.349-0.728;P<0.001].The proportion of acute attack of chronic appendicitis in schistosomal appendicitis was higher than that in non-schistosomal appendicitis(OR=2.614;95%CI:1.815-3.763;P<0.001).The proportion of schistosomal appendicitis patients complicated with colorectal cancer was higher than that of nonschistosomal appendicitis patients(OR=5.087;95%CI:1.427-

关键词： Schistosomal appendicitis Schistosomiasis Appendix Colorectal cancer Clinicopathological characteristics

Epidemic spreading with time delay in complex networks

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Epidemic spreading with time delay in complex networks

Risk factors for urban road traffic injuries in Hangzhou China

第二届全国复杂动态网络学术论坛

作者： xin-jian xu, Hai-Ou Peng, Xiao-Mei Wang, and Ying-Hai Wang Institute of Theoretical Physics. Lanzhou University Lanzhou Gansu 730000. China Herbert Irving Comprehensive Cancer Center, Columbia University New York 10032. USA

＜正＞We present a modified susceptible-infected-susceptible（SIS）model on complex networks,small-world and scale-free,to study epidemic spreading with the effect of time delay which is introduced to the infected *** the topology of the network,both uniform and degree-dependent delays are studied during the contagion *** find that the existence of time delay will enhance both outbreaks and prevalence of infectious diseases in the network.

关键词： networks and genealogical trees diseases critical point phenomena

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Risk factors for urban road traffic injuries in Hangzhou Chi...

Risk factors of mortality in road traffic injury patients with acute respiratory distress syndrome

2009年浙江省急诊医学学术年会

作者： Department of Emergency Medicine Second Affiliated Hospital Medical School of Zhejiang University Hangzhou(310009 ) China ZHAO Xiao-gang WU Jun-song,Zhao Guang-feng MA Yue-feng,ZHANG Mao GAN jian-xin xu Shao-wen jianG Guan-yu

Introduction Road traffic injuries(RTI) are responsible for 1.2 million global deaths and rank 9th as cause of death in both the high and low income countries。1 China is the largest country in the North Asian region with all the problems faced by rapidly developing nations,especially increasing motorization。In the developed country,

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Risk factors of mortality in road traffic injury patients wi...

Homology Cycles and Dependent Cycles of Hypergraphs

2009年浙江省急诊医学学术年会

Trauma has been strikingly increasing with the high-speed development of economical construction,traffic transport and sharp increase of vehicles in number。Among the deaths due to trauma,about one half of patients suffer from road traffic injury(RTI),most of these patients with posttraumatic acute respiratory distress

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Acta Mathematicae Applicatae Sinica 2018年第2期34卷 237-248页

作者： jian-fang WANG xin xu Academy of Mathematics and Systems Science Chinese Academy of Sciences Beijing 100190 China School of Sciences North China University of Technology Beijing 100144 China

In this paper, some new concepts for hypergraphs are introduced. Based on the previous results, we do further research on cycle structures of hypergraphs and construct a more strictly complete cycle structure system o... 详细信息

关键词： hypergraph semilattice cycle maximal cycle homology cycle

Single-Cell Transcriptome Analysis in Plants:Advances and Challenges

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Molecular Plant 2021年第1期14卷 115-126页

作者： Rahul Shaw xin Tian jian xu Department of Plant Systems Physiology Institute for Water and Wetland ResearchRadboud UniversityHeyendaalseweg 1356525 AJ Nijmegenthe Netherlands Department of Biological Sciences and Centre for Bioimaging Sciences National University of SingaporeSingapore 117543Singapore

The rapid and enthusiastic adoption of single-cell RNA sequencing(scRNA-seq)has demonstrated that this technology is far more than just another way to perform transcriptome *** is not an exaggeration to say that the advent of scRNA-seq is revolutionizing the details of whole-transcriptome snapshots from a tissue to a *** this disruptive technology,it is now possible to mine heterogeneity between tissue types and within cells like never *** enables more rapid identification of rare and novel cell types,simultaneous characterization of multiple different cell types and states,more accurate and integrated understanding of their roles in life processes,and ***,we are only at the beginning of unlocking the full potential of scRNA-seq *** is particularly true for plant sciences,where single-cell transcriptome profiling is in its early stage and has many exciting challenges to *** this review,we compare and evaluate recent pioneering studies using the A rabidopsis root model,which has established new paradigms for scRNA-seq studies in *** also explore several new and promising single-cell analysis tools that are available to those wishing to study plant development and physiology at unprecedented resolution and *** addition,we propose some future directions on the use of scRNA-seq technology to tackle some of the critical challenges in plant research and breeding.

关键词： bioinformatics pipelines cell types and states plant development and physiology single-cell RNA sequencing single-cell transcriptome analysis

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无线氧浓度监测装置的设计

医疗卫生装备 2017年第4期38卷 38-41页

作者：毛坤剑许新建许海树李达义周文光解放军174医院、厦门大学附属成功医院福建厦门361003

目的 :针对现有的氧浓度监测装置的弊端与不足,设计一种无线氧浓度监测装置。方法 :该装置主要由氧气传感器、氧气传感器连接线、氧浓度监测主机、显示终端4个部分组成。以HT67F489为主控制芯片,采用KE-25氧浓度传感器采集氧气体积分数... 详细信息

目的 :针对现有的氧浓度监测装置的弊端与不足,设计一种无线氧浓度监测装置。方法 :该装置主要由氧气传感器、氧气传感器连接线、氧浓度监测主机、显示终端4个部分组成。以HT67F489为主控制芯片,采用KE-25氧浓度传感器采集氧气体积分数数据,再通过T82模块将该数据无线传输到显示终端的App软件上。结果:该装置监测的氧气体积分数与设备自带监测装置的氧气体积分数监测值一样精确,不仅减少了患者用氧安全隐患,而且可以使医学工程人员在最短的时间内发现用氧设备的故障,缩短排查时间。结论:该装置安装简单、系统性能稳定、监测氧气体积分数精确度高,可以不受物理环境的影响实现对各种医用用氧设备氧气体积分数的实时监测,具有重大的社会效益和军事效益。

关键词：无线氧气体积分数监测 HT67F489芯片医用用氧设备用氧安全

Electrochemically promoted decarboxylative borylation of alkyl N-hydroxyphthalimide esters

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Chinese Chemical Letters 2022年第3期33卷 1555-1558页

作者： jian-Jun Dai xin-xin Teng Wen Fang Jun xu Hua-jian xu School of Food and Biological Engineering Hefei University of TechnologyHefei 230009China Anhui Province Key Laboratory of Advance Catalytic Materials and Reaction Engineering Hefei University of TechnologyHefei 230009China

An electrochemically promoted decarboxylative borylation reaction is reported. The reaction proceeds under mild conditions in an undivided cell without use of transition metal-or photo-catalysts. The key feature of the reaction is the compatibility of diboron reagents with the electrochemical conditions. This reaction exhibits broad substrate scope, good functional group tolerability, and easy scalability.

关键词： Electrochemical Decarboxylation Borylation Alkyl boronic esters Redox active esters