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Spontaneous small bowel perforation secondary to Vibrio parahaemolyticus infection:A case report

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World Journal of Clinical Cases 2021年第5期9卷 1210-1214页

作者： Shih-Chun chien Chih-Chung Chang Shih-Chao chien Department of Emergency Medicine Mackay Memorial HospitalTaipei 104Taiwan Department of Emergency Medicine Taitung Mackay Memorial HospitalTaitung 950Taiwan

BACKGROUND Vibrio pararhaemolyticus(***),a pathogen that commonly causes gastroenteritis,could potentially lead to a pandemic in *** pathogenesis and molecular mechanisms vary,and the severity of illness can be diverse,ranging from mild gastroenteritis,requiring only supportive care,to *** SUMMARY We outline a case of a 71-year-old female who experienced an acute onset of severe abdominal tenderness after two days of vomiting and diarrhea prior to her emergency department visit.A small bowel perforation was diagnosed using computed *** ascites cultured revealed infection due to *** CONCLUSION Our case is the first reported case of ***-induced gastroenteritis resulting in small bowel perforation.

关键词： Vibrio parahaemolyticus Gastroenteriti Small bowel perforation Bacteria Infections Case report

Numerical simulation of hydrodynamic characteristics and bedload transport in cross sections of two gravel-bed rivers based on one-dimensional lateral distribution method

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International Journal of Sediment Research 2020年第2期35卷 203-216页

作者： chien Pham Van Vivien Chua Department of River Engineering and Disaster Management Faculty of Hydrology and Water ResourcesThuyloi University Unite de Mod'elisation Mathematiques et Informatiquedes Systemesco Complexes (UMMISCO) JEAI WARMIRDSorbonne Universit'e Department of Civil and Environmental Engineering Faculty of EngineeringNational University of Singapore

Accurate evaluation and prediction of bedload transport are crucial in studies of fluvial hydrodynamic characteristics and river *** paper presents a one-dimensional numerical model based on the one-dimensional lateral distribution method(1 D-LDM) and six classic bedload transport formulae that can be used to simulate hydrodynamic characteristics and bedload transport discharge in cross *** gravel-bed rivers,*** Danube River located approximately 70 km downstream from Bratislava in Slovakia and the Tolten River in south of Chile are used as *** the 1 D-LDM,gravity,bed shear stress,turbulent diffusion,and secondary flow are included to allow for accurate predictions of flow velocity and consequently bed shear stress in the cross *** classic formulae were applied to evaluate the non-dimensional bedload transport rate,and the bedload transport discharge through a river cross section is obtained by integrating the bedload transport rate over the width of the cross *** results show that the root mean square error(RMSE) and mean absolute error(MAE) of velocity and water discharge were less than 8% of the observed magnitude,while the correlation coefficient between model predictions and observations was close to *** formulae proposed by Ashida and Michiue(1972),in which particle collision with the bed is taken into account,and by Camenen and Larson(2005),which allows for yielding a non-zero bedload transport rate even when the bed shear stress is smaller than the critical bed shear stress value,appeared to be more appropriate for predicting the observed bedload transport rate in the studied cross sections of two gravel-bed *** non-uniform sediment mixtures were considered,the bedload transport discharge through a cross-section could change considerably by up to 22.5% of the observed *** relations proposed by Ashida and Michiue(1972) and Egiazaroff(1965) for parameterizing the hiding factor yielded more

关键词： Bedload Gravel-bed river One-dimensional lateral distribution method Bedload transport discharge

Two-Dimensional Fin Efficiency of Plate Fin-Tube Heat Exchangers Under Partially and Fully Wet Conditions

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Journal of Thermal Science 2002年第3期11卷 249-254页

作者： Jiin-Yuh Jang chien-Nan Lin Natl Cheng Kung Univ Dept Mech Engn Tainan 70101 Taiwan

This paper presents the two-dimensional analysis for the efficiency of continuous plate fin-tube heat exchangers in staggered and in-lined arrangements under the dry, partially wet, and fully wet conditions for different heat transfer coefficient (h = 20 W/m2K to h = 80 W/m2K) and air relative humidity over the full range from φ= 0 % to φ= 100%. It is shown that the fin efficiencies of the staggered arrangement are higher than those for the in-lined arrangement, and the fully wet fin efficiency is 10~20% lower than that for a dry fin. The conventional 1-D sector method underestimates the fin efficiency up to 4 % as compared to the 2-D analysis.

关键词： fin efficiency plate fin-tube partially and fully wet.

Estimation Performance for the Cubature Particle Filter under Nonlinear/Non-Gaussian Environments

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Computers, Materials & Continua 2021年第5期67卷 1555-1575页

作者： Dah-Jing Jwo chien-Hao Tseng Department of Communications Navigation and Control EngineeringTaiwan Ocean UniversityKeelung202301TaiwanChina National Center for High-Performance Computing National Applied Research LaboratoriesHsinchu30076TaiwanChina

This paper evaluates the state estimation performance for processing nonlinear/non-Gaussian systems using the cubature particle lter(CPF),which is an estimation algorithm that combines the cubature Kalman lter(CKF)and the particle lter(PF).The CPF is essentially a realization of PF where the third-degree cubature rule based on numerical integration method is adopted to approximate the proposal *** is benecial where the CKF is used to generate the importance density function in the PF framework for effectively resolving the nonlinear/non-Gaussian *** on the spherical-radial transformation to generate an even number of equally weighted cubature points,the CKF uses cubature points with the same weights through the spherical-radial integration rule and employs an analytical probability density function(pdf)to capture the mean and covariance of the posterior distribution using the total probability theorem and subsequently uses the measurement to update with Bayes’*** is capable of acquiring a maximum a posteriori probability estimate of the nonlinear system,and thus the importance density function can be used to approximate the true posterior density *** Bayesian ltering,the nonlinear lter performs well when all conditional densities are assumed *** applied to the nonlinear/non-Gaussian distribution systems,the CPF algorithm can remarkably improve the estimation accuracy as compared to the other particle lterbased approaches,such as the extended particle lter(EPF),and unscented particle lter(UPF),and also the Kalman lter(KF)-type approaches,such as the extended Kalman lter(EKF),unscented Kalman lter(UKF)and *** illustrative examples are presented showing that the CPF achieves better performance as compared to the other approaches.

关键词： Nonlinear estimation non-Gaussian Kalman lter unscented Kalman lter cubature particle filter

Injury-induced rapid activation of MAPK signaling in dechorionated eggs and larvae of the silkworm Bombyx mori

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Insect Science 2017年第2期24卷 248-258页

作者： Shi-Hong Gu chien-Hung Chen Department of Biology National Museum of Natural Science Taichung Taiwan China Chung Hwa University of Medical Technol-ogy Tainan County Taiwan China

Previous study showed that diapause in Bombyx mori eggs can be ter- minated by dechorionation and that activation in the mitogen-activated protein kinase （MAPK）/extracellular signal-regulated kinase （ERK） in dechorionated cultured eggs is involved in diapause termination. In the present study, the possible mechanism underlying activation of ERK upon dechorionation was further investigated. Results showed that me- chanical injury of diapause eggs without medium incubation also resulted in rapid increase in the phospho-ERK levels and that injury increased the phospho-ERK levels at different stages of both diapause eggs and eggs in which diapause initiation was prevented by HC1. Effects of anaerobiosis on dechorionation-stimulated phospho-ERK levels showed that the mechanical injury itself but not the dramatic increase in oxygen uptake upon injury is in- volved in a rapid activation of ERK. Chemical anaerobiosis on dechorionation-stimulated phospho-ERK levels and the in vivo effect of anaerobiosis showed that the supply of oxygen also plays a role in ERK signaling. In addition, injury induced the phosphory- lation of c-jun N-terminal kinases （JNKs） and p38 kinase, components of two parallel MAPK pathways. A kinase assay showed a dramatic increase in .INK kinase activity in egg lysates upon injury. When newly hatched first instar larvae were injured, an increase in the phospho-ERK levels similar to that in dechorionated eggs was observed. From the results, we hypothesize that the injury-induced rapid activation of MAPK signaling, which serves as a natural signal for embryonic development, is related to diapause termination in dechorionated eggs.

关键词： Bombyx mori dechorionation embryonic diapause ERK phosphorylation injury MAPK

Viewpoints on Grid Standards

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Journal of Computer Science & Technology 2005年第1期20卷 141-143页

作者： AndrewA.chien Xian-HeSun Zhi-WeiXu ComputerScienceandEngineering UniversityofCaliforniaSanDiegoU.S.A. DepartmentofComputerScience IllinoisInstituteofTechnologyU.S.A. InstituteofComputingTechnology ChineseAcademyofSciencesBeijing100080P.R.China

At GCC 2003 in Shanghai in December 2003, a panel discussion was held on thefuture of grid computing and on the role of the Globus Toolkit in future grid standards. Panelistsinclude Andrew chien (UCSD, USA), Wolfgang Gentzsch (Sun), Francis Lau (HKU, China), Carl Kesselman(USC, USA), Satoshi Matsuoka (TIT, Japan), Xian-He Sun (IIT, USA), Richard Wirt (Intel), Liang-JieZhang (IBM Research), Song-Nian Zhou (Platform Computing), and Zhi-Wei Xu (ICT, China), with Hai Jin(HUST, China) served as the coordinator. The panel talks were stimulating and well received. Threeof the panel talk notes are selected and included in this viewpoint.

关键词： Computer operating systems Computer workstations Information dissemination Interoperability Middleware Network protocols Societies and institutions Standards User interfaces Virtual reality

Vedolizumab in Crohn’s disease with rectal fistulas and presacral abscess:A case report

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World Journal of Gastroenterology 2021年第5期27卷 442-448页

作者： Heng Yeh Chia-Jung Kuo Ren-Chin Wu chien-Ming Chen Wen-Sy Tsai Ming-Yao Su Cheng-Tang Chiu Puo-Hsien le School of Medicine Chang Gung UniversityTaoyuan City 333323Taiwan Department of Gastroenterology and Hepatology Chang Gung Memorial HospitalLinkou BranchTaoyuan 333Taiwan Taiwan Association of the Study of Small Intestine Disease Taoyuan 333Taiwan Department of Pathology Chang Gung Memorial HospitalLinkou BranchTaoyuan 333Taiwan Department of Medical Imaging and Intervention Chang Gung Memorial HospitalLinkou BranchTaoyuan 333Taiwan Department of Colon and Rectal Surgery Chang Gung Memorial HospitalLinkou BranchTaoyuan 333Taiwan Department of Gastroenterology and Hepatology New Taipei City Municipal Tucheng HospitalNew Taipei City 236017Taiwan Liver Research Center Chang Gung Memorial HospitalLinkou BranchTaoyuan 333Taiwan

BACKGROUND Fistula and intraabdominal abscess are common complications of Crohn’s disease(CD),but complex rectal fistula with abscess formation is *** necrosis factor antagonists combined with percutaneous drainage or surgical intervention is optimal treatment for fistulizing CD with intraabdominal *** is no study showing the efficacy of vedolizumab in such complicated *** SUMMARY A 47-year-old man has decompensated liver cirrhosis,Child *** suffered from abdominal pain,bloody diarrhea,fever,and body weight *** with rectoprostatic fistula,rectopresacral fistula,presacral abscess and cytomegalovirus(CMV)infection were *** received antibiotics,anti-viral therapy,transverse colostomy and vedolizumab *** months later,he had deep remission and complete fistula tracts *** Early vedolizumab and stool diversion are effective and safe in treating CD with complex rectal fistula with abscess formation.

关键词： Vedolizumab Crohn's disease Rectoprostatic fistula Rectal presacral fistula Presacral abscess Case report

Modeling of turbulent,isothermal and cryogenic cavitation under attached conditions

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Acta Mechanica Sinica 2010年第3期26卷 325-353页

作者： chien-Chou Tseng Yingjie Wei GuoyuWang Wei Shyy Department of Mechanical Engineering University of Michigan2350 Hayward Ann Arbor MI 48109 USA School of Astronautics Harbin Institute of Technology 92 West Da-Zhi Street Harbin 150001 China School of Vehicle and Transportation Engineering Beijing Institute of Technology 5 South Zhongguancun Street Beijing 100081 China Department of Aerospace Engineering University of Michigan 1320 Beal Ann Arbor MI 48109 USA

Cavitation is often triggered when the fluid pres- sure is lower than the vapor pressure at a local thermo- dynamic state. The present article reviews recent progress made toward developing modeling and computational strat- egies for cavitation predictions under both isothermal and cryogenic conditions, with an emphasis on the attached cav- ity. The review considers alternative cavitation models along Reynolds-averaged Navier-Stokes and very lager eddy simu- lation turbulence approaches to ensure that the computational tools can handle flows of engineering interests. Observing the substantial uncertainties associated with both modeling and experimental information, surrogate modeling strategies are reviewed to assess the implications and relative impor- tance of the various modeling and materials parameters. The exchange between static and dynamic pressures under the influence of the viscous effects can have a noticeable impact on the effective shape of a solid object, which can impact the cavitation structure. The thermal effect with respect to evaporation and condensation dynamics is examined to shed light on the fluid physics associated with cryogenic cav- itation. The surrogate modeling techniques are highlighted in the context of modeling sensitivity assessment. Keywords

关键词： Cavitation Cryogenic liquidThermal effects Turbulence model - Surrogate model

Mesenteric ischemia with intrasplenic gas:A case report

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World Journal of Clinical Cases 2025年第7期13卷 52-56页

作者： Hsiang-Yu Tsang Chee-chien Yong Hao-Ping Wang Department of Surgery Kaohsiung Chang Gung Memorial HospitalKaohsiung 833401Taiwan

BACKGROUND Acute mesenteric ischemia is a life-threatening *** gas is an extremely rare finding in such *** SUMMARY We report a case of a 79-year-old woman with a history of end-stage renal disease on hemodialysis for approximately 20 years,type 2 diabetes mellitus,and atrial fibrillation who presented with two days of epigastric pain.A computed tomography scan of the abdomen revealed intraperitoneal free air and significant intrasplenic *** revealed diffuse intestinal gangrene,and acute superior mesenteric ischemia was *** patient died within 24 hours owing to profound *** Intrasplenic gas is an extremely rare finding on computed tomography imaging in cases of acute mesenteric ischemia.

关键词： Acute mesenteric ischemia Spleen Hepatic portal venous gas Pneumatosis cystoides intestinalis Prognosis Case report