检索结果-南通市图书馆

Geophysical fluid dynamics in the hypergravity field

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Acta Mechanica Sinica 2024年第6期40卷 3-10页

作者： Harry yeh School of Civil&Construction Engineering Oregon State UniversityCorvallisOR97331USA

Hypergravity can be realized by creating a field imposed by centripetal acceleration in a centrifuge *** an apparatus is often used to test soil response in geotechnical engineering *** we present the potential usage of a centrifuge apparatus to study various topics in *** scaling law associated with hydrodynamics is first reviewed,and the advantage of controlling the body force is *** of the perceived disadvantages in such experiments is the unwanted presence of the Coriolis effect in the ***,we propose exploiting this effect to our advantage to study geophysical fluid-dynamic problems that occur particularly in the equatorial region.

关键词： Hypergravity Scaling Geophysical fluid dynamics Centrifuge

我国上市公司政治关联与多元化的关系研究 ——基于公司治理和制度环境的情境

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

我国上市公司政治关联与多元化的关系研究 ...

作者：叶奕辰（yeh i-Chen）南京大学

学位级别：硕士

在我国目前转型经济的情况下,政府环境构成了企业外在环境的重要部分,企业的生存、发展和竞争都离不开与政府之间的关系网路,因此企业与政府之间有着良好的关系将会对企业的生存和发展带来很多好处。多元化是企业发展实现规模扩张和分... 详细信息

在我国目前转型经济的情况下,政府环境构成了企业外在环境的重要部分,企业的生存、发展和竞争都离不开与政府之间的关系网路,因此企业与政府之间有着良好的关系将会对企业的生存和发展带来很多好处。多元化是企业发展实现规模扩张和分散风险来维持竞争优势的一个战略选择,然而企业开展多元化所需的资源很多时候是受到政府因素的限制,这时企业的政治关联度能够发挥政治影响力来协助企业取得多元化所需的资源和突破多元化相关的壁垒。根据现有研究成果来看,大多数实证研究侧重在政治关联最终能够为企业带来多少价值,而在讨论政治关联和多元化之间的关系研究比较缺乏。此外,由于企业高管在战略决策时起到关键的作用,高管持股比例将会对企业的政治关联和多元化之间的关系产生影响;市场化程度也会影响高管政治关联度的发挥效度。所以,本文从企业的公司治理和制度环境的视角出发,探讨高管持股比例和市场化程度是如何影响政治关联度与多元化战略之间的关系。本文基于政治关联度与多元化关系的探讨,从公司治理和制度环境的视角,加入了高管持股比例和市场化程度来代表企业内部和外部环境的情境因素,分析对于主效应中起到的调节作用。本文以我国940家上市公司从2010年到2013年的数据为研究样本,对研究假设进行实证检验,研究结果表明:（1）企业的政治关联度与多元化程度存在正相关关系;（2）高管持股比例对于企业的政治关联度与多元化程度之间的关系起到正向调节的作用;（3）市场化程度对于企业的政治关联度与多元化程度之间的关系起到负向调节的作用。最后,在实证研究结果上进行了研究结论总结,本文的研究结论在实务上有所启示,对于上市公司的管理者而言,企业高管的政治关联度能够取得多元化战略所需的资源,而多元化是维持和实现企业增长的重要战略选择之一,因此透过设计合适的高管股权激励机制能够促使拥有政治关联度的高管进行更多的（而不是过度的）多元化战略,选择合适的市场环境能够确保拥有政治关联度的高管不会滥用其政治关联度来进行多元化战略

关键词：政治关联多元化公司治理制度环境高管持股市场化程度

Localized pericarditis leading to clinical tamponade with profound shock status and syncope as a major clinical manifestation after posterior wall myocardial infarction—Characterization and descriptive findings by real-time 3-dimensional echocardiography

同方学位论文库评论

在线全文

同方学位论文库

学校读者我要写书评

暂无评论

Case Reports in Clinical Medicine 2013年第4期2卷 263-266页

作者： Po-Ching Chi Chi-in Lo Charles Jia-Yin Hou Hung-i yeh Chung-Lieh Hung Division of Cardiology Department of Internal Medicine Mackay Memorial Hospital Taipei Taiwan

Pericarditis and hemopericardium causing cardiac tamponade, caused by large and transmural ventricular infarction with subsequent rupture into the pericardium, is a rare complication post acute myocardial infarction. This is frequently fatal with rapid clinical course. We reported a 65-year-old female who presented with persistent diaphoresis and dyspnea for several hours followed by syncope. Acute myocardial infarction was diagnosed with primary percutaneous coronary intervention performed though persistent hypotension was observed. Moderate amount of hemopericardium leading to tamponade was found. it was relieved after pericardiocentesis. Real-time three-dimensional echocardiography revealed blood clot with specific whirling pattern around the infracted ventricular wall with suspected leak.

关键词： Pericarditis Hemopericardium Tamponade Myocardial infarction Syncope

A Multi-Objective Optimization for Locating Maintenance Stations and Operator Dispatching of Corrective Maintenance

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computers, Materials & Continua 2024年第6期79卷 3519-3547页

作者： Chao-Lung Yang Melkamu Mengistnew Teshome Yu-Zhen yeh Tamrat Yifter Meles Department of industrial Management National Taiwan University of Science and TechnologyTaipie106Taiwan Department of industrial Engineering University of Gondar Institute of TechnologyGondar196Ethiopia

in this study,we introduce a novel multi-objective optimization model tailored for modern manufacturing,aiming to mitigate the cost impacts of operational disruptions through optimized corrective *** to our approach is the strategic placement of maintenance stations and the efficient allocation of personnel,addressing a crucial gap in the integration of maintenance personnel dispatching and station *** model uniquely combines the spatial distribution of machinery with the expertise of operators to achieve a harmonious balance between maintenance efficiency and *** core of our methodology is the NSGA Ⅲ+Dispatch,an advanced adaptation of the Non-Dominated Sorting Genetic Algorithm Ⅲ(NSGA-Ⅲ),meticulously designed for the selection of maintenance stations and effective operator *** method integrates a comprehensive coding process,crossover operator,and mutation operator to efficiently manage multiple *** empirical testing,including a detailed analysis from a taiwan region electronic equipment manufacturer,validated the effectiveness of our approach across various scenarios of machine failure frequencies and operator *** findings reveal that the proposed model significantly outperforms current practices by reducing response times by up to 23%in low-frequency and 28.23%in high-frequency machine failure scenarios,leading to notable improvements in efficiency and cost ***,it demonstrates significant improvements in oper-ational efficiency,particularly in selective high-frequency failure contexts,while ensuring substantial manpower cost savings without compromising on operational *** research significantly advances maintenance strategies in production environments,providing the manufacturing industry with practical,optimized solutions for diverse machine malfunction ***,the methodologies and principles developed in this study have pote

关键词： Corrective maintenance multi-objective optimization non-dominated sorting genetic algorithmⅢ operator allocation maintenance station location

TransCell:in Silico Characterization of Genomic Landscape and Cellular Responses by Deep Transfer Learning

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Genomics, Proteomics & Bioinformatics 2024年第2期22卷 157-170页

作者： Shan-Ju yeh Shreya Paithankar Ruoqiao Chen Jing Xing Mengying Sun Ke Liu Jiayu Zhou Bin Chen Department of Pediatrics and Human Development Michigan State UniversityGrand RapidsMI 49503USA Department of Pharmacology and Toxicology Michigan State UniversityGrand RapidsMI 49503USA Department of Computer Science and Engineering Michigan State UniversityEast LansingMI 48824USA

Gene expression profiling of new or modified cell lines becomes routine today;however,obtaining comprehensive molecular characterization and cellular responses for a variety of cell lines,including those derived from underrepresented groups,is not trivial when resources are *** gene expression to predict other measurements has been actively explored;however,systematic investigation of its predictive power in various measurements has not been well ***,we evaluated commonly used machine learning methods and presented TransCell,a two-step deep transfer learning framework that utilized the knowledge derived from pan-cancer tumor samples to predict molecular features and *** these models,TransCell had the best performance in predicting metabolite,gene effect score(or genetic dependency),and drug sensitivity,and had comparable performance in predicting mutation,copy number variation,and protein ***,TransCell improved the performance by over 50%in drug sensitivity prediction and achieved a correlation of 0.7 in gene effect score ***,predicted drug sensitivities revealed potential repurposing candidates for new 100 pediatric cancer cell lines,and predicted gene effect scores reflected BRAF resistance in melanoma cell ***,we investigated the predictive power of gene expression in six molecular measurement types and developed a web portal(http://***/transcell/)that enables the prediction of 352,000 genomic and cellular response features solely from gene expression profiles.

关键词： Genomics Transcriptomics Cancer dependency Drug repurposing Transfer learning

Designing a Secure and Scalable Data Sharing Mechanism Using Decentralized identifiers(DiD)

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computer Modeling in Engineering & Sciences 2024年第10期141卷 809-822页

作者： iuon-Chang Lin i-Ling yeh Ching-Chun Chang Jui-Chuan Liu Chin-Chen Chang Department of Management information Systems National Chung Hsing UniversityTaichung402TaiwanChina information and Communication Security Research Center Feng Chia UniversityTaichung407TaiwanChina Department of information Engineering and Computer Science Feng Chia UniversityTaichung407TaiwanChina

Centralized storage and identity identification methods pose many risks,including hacker attacks,data misuse,and single points of ***,existing centralized identity management methods face interoperability issues and rely on a single identity provider,leaving users without control over their ***,this paper proposes a mechanism for identity identification and data sharing based on decentralized *** scheme utilizes blockchain technology to store the identifiers and data hashed on the chain to ensure permanent identity recognition and data *** is stored on interPlanetary File System(iPFS)to avoid the risk of single points of failure and to enhance data persistence and *** the same time,compliance with World Wide Web Consortium(W3C)standards for decentralized identifiers and verifiable credentials increases the mechanism’s scalability and interoperability.

关键词： Self-sovereign identity decentralized identifier blockchain

Subsequent bilateral acute carpal tunnel syndrome due to tophaceous infiltration:A case report

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Clinical Cases 2024年第2期12卷 418-424页

作者： Soon-Chin Yeoh Wen-Tien Wu Jui-Tien Shih Wen-Chin Su Kuang-Ting yeh School of Medicine Tzu Chi UniversityHualien 970374TaiwanChina Department of Orthopedics Hualien Tzu Chi HospitalBuddhist Tzu Chi Medical FoundationHualien 970473TaiwanChina Department of Orthopaedic Surgery Taoyuan Armed Forces General HospitalTaoyuan 325208TaiwanChina Department of Clinical Education Hualien Tzu Chi HospitalBuddhist Tzu Chi Medical FoundationHualien 970473TaiwanChina Graduate institute of Clinical Pharmacy Tzu Chi UniversityHualien 970374TaiwanChina

BACKGROUND Acute carpal tunnel syndrome(ACTS)is commonly caused by repetitive strain,trauma,or inflammatory ***,ACTS due to tophaceous gout is a clinical event that remains poorly understood and *** rare manifestation necessitates prompt diagnosis and intervention to prevent irreversible *** SUMMARY A 51-year-old man who had poorly controlled hyperuricemia presented with ACTS secondary to tophaceous *** of rapid symptom progression symptoms and severe median nerve compression within 3 mo,the patient underwent emergency decompression surgery for both wrists at different time ***,he exhibited complete recovery of sensory and motor functions,with no recurrence at long-term *** outcomes were achieved through immediate decompression surgery,anti-inflammatory medications,postoperative active and passive range-of-motion exercises,and intermittent wrist *** diagnosis and surgical intervention,when necessary,are crucial for preventing long-term complications and obtaining favorable outcomes in patients with *** optimal gout management strategy involving pharmacologic therapy and lifestyle modifications may help minimize ACTS recurrence and improve clinical *** Prompt surgical intervention and optimal gout management are crucial for preventing irreversible nerve damage and ACTS recurrence.

关键词： Acute carpal tunnel syndrome Gout Surgical decompression Range-of-motion exercises Case report

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

集中力作用下硅中位错结构

物理学报 1965年第8期 1475-1486页

作者：洪晶叶以正

本文用化学侵蚀法研究了硅单晶样品在800—1000℃印压得到的位错“花结”。实验结果说明:印压产生的位错分布在{111}滑移面上;位错线的取向大部分是或方向。分析并观察到在压印下有两种位错环,一种是柏格斯矢量沿方向并平行于(111)印压... 详细信息

本文用化学侵蚀法研究了硅单晶样品在800—1000℃印压得到的位错“花结”。实验结果说明:印压产生的位错分布在{111}滑移面上;位错线的取向大部分是或方向。分析并观察到在压印下有两种位错环,一种是柏格斯矢量沿方向并平行于(111)印压面;一种是柏格斯矢量沿方向并与印压面相交。对位错环的结构进行了分析。

关键词：花结位错晶体缺陷蚀斑滑移面

impact of microplastics and nanoplastics on liver health:Current understanding and future research directions

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2024年第9期30卷 1011-1017页

作者： Chun-Cheng Chiang Hsuan yeh Ruei-Feng Shiu Wei-Chun Chin Tzung-Hai Yen School of Medicine University of PittsburghPittsburghPA 15213United States Pittsburgh Liver Research Center University of PittsburghPittsburghPA 15213United States Division of Experimental Pathology Department of PathologyUniversity of PittsburghPittsburghPA 15213United States Division of Endocrinology Department of PediatricsUniversity of PittsburghPittsburghPA 15213United States Center of Excellence for The Oceans National Taiwan Ocean UniversityKeelung 20224Taiwan institute of Marine Environment and Ecology National Taiwan Ocean UniversityKeelung 20224TaiwanChina Department of Materials Science and Engineering University of California MercedMercedCA 95343United States Department of Nephrology Clinical Poison CenterChang Gung Memorial HospitalTaoyuan 333TaiwanChina College of Medicine Chang Gung UniversityTaoyuan 333TaiwanChina

With continuous population and economic growth in the 21st century,plastic pollution is a major global ***,the health concern of microplastics/nanoplastics(MPs/NPs)decomposed from plastic wastes has drawn public attention only in the recent *** article summarizes recent works dedicated to understanding the impact of MPs/NPs on the liver-the largest digestive organ,which is one of the primary routes that MPs/NPs enter human *** interrelated mechanisms including oxidative stress,hepatocyte energy re-distribution,cell death and autophagy,as well as immune responses and inflammation,were also *** addition,the disturbance of microbiome and gut-liver axis,and the association with clinical diseases such as metabolic dysfunction-associated fatty liver disease,steatohepatitis,liver fibrosis,and cirrhosis were briefly ***,we discussed potential directions in regard to this trending topic,highlighted current challenges in research,and proposed possible solutions.

关键词： Microplastics Nanoplastics Liver Reactive oxidative species Cell death Autophagy innate immunity Metabolic dysfunction-associated fatty liver disease Gut-liver axis