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Endoscopic fibrin sealant closure of duodenal perforation after endoscopic retrograde cholangiopancreatography

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World Journal of Gastroenterology 2015年第45期21卷 12976-12980页

作者： hsin-yeh Yang Jui-Hao chen Division of Gastroenterology Department of Internal Medicine Shin Kong Wu Ho-Su Memorial Hospital Faculty of Medicine Taipei Medical University

Traditionally, perivaterian duodenal perforation can be managed conservatively or surgically. If a large volume of leakage results in fluid collection in the retroperitoneum, surgery may be necessary. Our case met the surgical indication for perivaterian duodenal perforation after endoscopic retrograde cholangiopancreatography(ERCP) with sphincterotomy and endoscopic papillary balloon dilatation. The patient developed a retroperitoneal abscess after the procedures, and a perivaterian perforation was suggested on computed tomography(CT). CT-guided abscess drainage was performed immediately. We unsuccessfully attempted to close the perforation with hemoclips initially. Subsequently, we used fibrin sealant(Tisseel) injection to occlude the perforation. Fibrin sealant injections have been previously used during endoscopy for wound closure and fistula repair. Based on our report, fibrin sealant injection can be considered as an alternative method for the treatment of ERCPrelated type Ⅱ perforations.

关键词： Perivaterian duodenal perforation Endoscopic retro

An Event Alarm System Based on Single and Group Human Behavior Analysis

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Journal of Electronic Science and Technology 2017年第2期15卷 123-132页

作者： Hung-Yu yeh I-cheng Chang Yung-hsin chen Department of Computer Science&Information Engineering National Dong Hwa UniversityHualien 97401 cal-comp electronics and Communications Company Ltd. Taipei 10571

Due to the increasing demand for security, the development of intelligent surveillance systems has attracted considerable attention in recent years. This study aims to develop a system that is able to identify whether or not the people need help in a public place. Different from previous work, our work considers not only the behaviors of the target person but also the interaction between him and nearby people. In the paper, we propose an event alarm system which can detect the human behaviors and recognize the happening event through integrating the results generated from the single and group behavior analysis. Several new effective features are proposed in the study. Besides, a mechanism capable of extracting one-to-one and multiple-to-one relations is also developed. Experimental results show that the proposed approach can correctly detect human behaviors and provide the alarm messages when emergency events occur.

关键词： Index Terms Event alarm system group behavior analysis human behavior recognition single behavior analysis stooping curve.

Association of overtime work and obesity with needle stick and sharp injuries in medical practice

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World Journal of Clinical Cases 2021年第35期9卷 10937-10947页

作者： Yong-hsin chen Chih-Jung yeh Gwo-Ping Jong Department of Occupational Safety and Health Chung Shan Medical University HospitalTaichung 40201Taiwan Department of Public Health Chung Shan Medical UniversityTaichung 40201Taiwan Department of Internal Medicine Chung Shan Medical University Hospital and Chung Shan Medical UniversityTaichung 40201Taiwan

BACKGROUND Needle stick and sharps injuries(NSIs)may cause infections among medical *** and overtime work among medical personnel increase the incidence of work *** To investigate whether overtime work and obesity increase the risk of *** This cross-sectional study used the data of 847 hospital personnel,including 104 doctors,613 nurses,67 medical laboratory scientists,54 specialist technicians,and nine surgical *** them,29 participants notified the hospital of having at least one NSI in *** data collected included age,overtime work,body mass index,medical specialty such as doctor or nurse,and professional grade such as attending physician or ***χ2 and Fisher’s exact tests were used to compare categorical *** logistic regression analysis and the Sobel test were used to assess the risk of *** Overtime work,body weight,and medical specialty were significantly associated with NSIs(P<0.05).After adjustment for risk factors,heavy overtime work was an independent risk factor for NSIs,and healthy body weight and nursing specialty were independent protective factors against *** adjustment for risk factors,medical personnel with healthy body weight has half as many NSIs as those with unhealthy body weight;the proportion of NSIs in doctors with healthy body weight was 0.2 times that in doctors with unhealthy body weight;the proportion of injuries among residents was 17.3 times higher than that among attending physicians;the proportion of injuries among junior nurses was 3.9 times higher than that among experienced nurses;the proportion of injuries among nurses with heavy overtime work was 6.6 times higher than that among nurses with mild overtime work;and the proportion of injuries among residents was 19.5 times higher than that among junior *** overtime work mediated the association of medical specialty with *** In addition to promoting the use of safety needles and pr

关键词： Medical staff Needle stick and sharps injuries Overtime work Healthy body weight Obesity

A computational study on system dynamics of an ocean current turbine

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Journal of Hydrodynamics 2018年第3期30卷 395-402页

作者： Jo-Ti Wu Jiahn-Homg chen Ching-yeh hsin Fomg-chen Chiu Department of Systems Engineering and Naval Architecture National Taiwan Ocean University Keelung China Department of Engineering Science and Ocean Engineering National Taiwan University Taipei China

In this paper, we present the study of system dynamics of the floating kuroshio turbine（FKT） system which is designed to harness ocean current energy. We focus on the mooring line system design and its interaction with the FKT system. The effects of line diameter and two different auxiliary line systems were studied. Their responses in waves were also investigated. We integrated several commercial and in-house packages. The system buoyancy and weight and their centers were estimated using the Rhino software. The system hydrodynamic coefficients were obtained through WAMIT, system drag coefficient through FLUENT, turbine propulsive force through lifting surface code, and system dynamics through Orca Flex. The results show that the mooring line system can create strong influence on the FKT system operations in the ocean current environments.

关键词： Ocean current energy current turbine system dynamics mooring line system

Is burnout a mediating factor between sharps injury and workrelated factors or musculoskeletal pain?

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World Journal of Clinical Cases 2021年第25期9卷 7391-7404页

作者： Yong-hsin chen Chin-Feng Tsai Chih-Jung yeh Gwo-Ping Jong Department of Public Health Chung Shan Medical UniversityTaichung 40201Taiwan Department of Occupational Safety and Health Chung Shan Medical University HospitalTaichung 40201Taiwan Division of Cardiology Department of Internal MedicineChung Shan Medical University HospitalTaichung 40201Taiwan School of Medicine Chung Shan Medical UniversityTaichung 40201Taiwan Department of Internal Medicine Chung Shan Medical University Hospital and Chung Shan Medical UniversityTaichung 40201Taiwan

BACKGROUND Burnout,musculoskeletal pain,and sharps injuries(SIs)affect medical *** To establish a model between SIs,burnout,and the risk factors to assess the extent to which burnout affects *** This questionnaire was used for an observational and cross-sectional study,which was based on members at a hospital affiliated with a medical university in Taichung,Taiwan,in *** valid responses constituted 68.5%(1734 of 2531).The items were drawn from the Nordic Musculoskeletal Questionnaire and Copenhagen burnout inventory and concerned work experience,occupational category,presence of chronic diseases,sleep duration,overtime work,and work *** analysis,chi-square test,Fisher exact test,Multiple linear,logistic regression and Sobel test were *** present analyses were performed using SAS Enterprise Guide 6.1 software(SAS Institute Inc.,Cary,NC,United States),and significance was set at P Q3) and highwork-related burnout (> Q3) mediated the relationship between SIs and frequentlower limb pain. Similarly, frequent lower limb pain mediated the relationship ofSIs with high personal and high work-related burnout. High personal and highwork-related burnout mediated the relationships of SIs with overtime work andirregular shift work. The mediating model provides strong evidence of anassociation between mental health and *** was determined to contribute to SIs occurrence;specifically, it mediatedthe relationships of SIs with frequent musculoskeletal pain, overtime work, andirregular shift work.

关键词： Personal burnout Work-related burnout Sharps injuries Musculoskeletal pain Mediating factor Overtime work

Somatic alterations in mitochondrial DNA and mitochondrial dysfunction in gastric cancer progression

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World Journal of Gastroenterology 2014年第14期20卷 3950-3959页

作者： hsin-chen Lee Kuo-Hung Huang Tien-Shun yeh Chin-Wen Chi Institute of Pharmacology School of MedicineNational Yang-Ming University Division of General Surgery Department of SurgeryTaipei Veterans General Hospital Institute of Clinical Medicine School of MedicineNational Yang-Ming University Department of Anatomy and Cell Biology School of MedicineNational Yang-Ming University Department of Medical Research and Education Taipei Veterans General Hospital

Energy metabolism reprogramming was recently identified as one of the cancer *** of the underlying mechanisms of energy metabolism reprogramming is mitochondrial dysfunction caused by mutations in nuclear genes or mitochondrial DNA(mtDNA).In the past decades,several types of somatic mtDNA alterations have been identified in gastric ***,the role of these mtDNA alterations in gastric cancer progression remains *** this review,we summarize recently identified somatic mtDNA alterations in gastric cancers as well as the relationship between these alterations and the clinicopathological features of gastric *** causative factors and potential roles of the somatic mtDNA alterations in cancer progression are also *** suggest that point mutations and mtDNA copy number decreases are the two most common mtDNA alterations that result in mitochondrial dysfunction in gastric *** two primary mutation types(transition mutations and mononucleotide or dinucleotide repeat instability)imply potential causative *** dysfunction-generated reactive oxygen species may be involved in the malignant changes of gastric *** search for strategies to prevent mtDNA alterations and inhibit the mitochondrial retrograde signaling will benefit the development of novel treatments for gastric cancer and other malignancies.

关键词： Gastric cancer Somatic mitochondrial DNA mutations Mitochondrial dysfunction

Porous Cube-like In_2O_3 Nanoparticles and Their Sensing Characteristics toward Ethanol

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Journal of Materials Science & Technology 2008年第4期24卷 667-674页

作者： Chih-Chia HUANG chen-Sheng yeh Natl cheng Kung Univ Dept Chem Tainan 70101 Taiwan

Porous cube-like crystalline In2O3 nanoparticles with an average diagonal length of 34.8 nm were fabricated by a laser ablation-reflux process to form In（OH）3, followed by a calcination treatment to yield porous In2O3. HRTEM （high-resolution transmission electronic microscopy）, XRD （X-ray diffraction）, BET （Brunauer-Emmett-Teller）, and XPS （X-ray photoelectron spectroscopy） analysis were used to characterize their crystalline structures, grain sizes, surface areas, and surface compositions. The as-prepared porous in-dium oxides were tested for their sensing properties toward ethanol. Non-porous In2O3 nanopowder （about 40 nm） was also examined in order to compare the results with the as-prepared porous In2O3 nanomaterials. The porous In2O3 exhibited much better performance than that of non-porosus In2O3, and showed enhanced sensitivity with a lower detection limit than other reported In2O3-based materials when exposed to ethanol. Good gas sensitivity and linear behavior as a function of ethanol concentration were observed in the porous In2O3 nanoparticles.

关键词： In2O3 Porosity Nanoparticles Gas sensor

The Analysis of Thermal-Induced Phase Transformation and Microstructural Evolution in Ni-Ti Based Shape Memory Alloys By Molecular Dynamics

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Computer Modeling in Engineering & Sciences 2019年第8期120卷 319-332页

作者： hsin-Yu chen Nien-Ti Tsou Department of Materials Science and Engineering National Chiao Tung UniversityTa Hsueh RoadHsinchu 30013Taiwan

Shape memory alloys has been widely applied on actuators and medical *** transformation temperature and microstructural evolution play two crucial factors and dominate the behavior of shape memory *** order to understand the influence of the composition of the Ni-Ti alloys on the two factors,molecular dynamics was adopted to simulate the temperature-induced phase *** results were post-processed by the martensite variant identification *** method allows to reveal the detailed microstructural evolution of variants/phases in each case of the composition of *** features were found and having good agreement with those reported in the literature,such as the well-known Rank-2 herringbone structures;the X-interface;Ni-rich alloys have lower transformation temperature than Ti-rich *** addition,some new features were also *** example,the Ti-rich alloys enabled an easier martensitic transformation;the nucleated martensite pattern determined the microstructural evolution path,which also changed the atomic volume and temperature *** results generated in the current study are expected to provide the design guidelines for the applications of shape memory alloys.

关键词： Thermal-induced phase transformation transformation temperature molecular dynamics crystal variants

ToMFIR-based fault detection approach in frequency domain

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Journal of Systems Engineering and Electronics 2011年第1期22卷 33-37页

作者： Wen chen Chih Ping yeh Hanlong Yang Division of Engineering Technology Wayne State University Detroit M148202 USA Vehicle Group Eaton Corporation Southfield MI 48076 USA

This paper is to explore further results for total measurable fault information-based residual（ToMFIR） approach to fault detection in dynamic *** ToMFIR contains the essential fault information and remains unaffected by control actions in a closed-loop *** is composed of controller residual and output residual and some of further results are developed in frequency *** the ability of detecting actuator and sensor faults,it is able to detect faults/failures resulting from the computer used for control purpose that generates control ***,all of existing fault detection schemes cannot achieve the same task at all.A practical DC motor example,with a PID controller,is used to demonstrate the effectiveness of the ToMFIR-based fault detection.A comparison with the standard observer-based technique is also provided.

关键词： fault detection total measurable fault informationbased residual(ToMFIR) output residuals controller residuals frequency domain.