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Improving Supply Chain Performance Through Supplier Selection and Order Allocation Problem

Computers, Materials & Continua 2022年第1期70卷 1667-1681页

作者： Chia-Nan Wang ming-cheng tsou Chih-Hung Wang Viet Tinh Nguyen Pham Ngo Thi Phuong Department of Industrial Engineering and Management National Kaohsiung University of Science and TechnologyKaohsiung80778Taiwan Department of Shipping Technology National Kaohsiung University of Science and TechnologyKaohsiung80778Taiwan Department of International Business Shih Chien UniversityTaipei80778Taiwan Faculty of Commerce Van Lang UniversityHo Chi Minh City70000Vietnam Faculty of Industrial Engineering and Management International UniversityHo Chi Minh City70000Vietnam

Suppliers play the vital role of ensuring the continuous supply of goods to themarket for *** businesses do not maintain a strong bond with their suppliers,they may not be able to secure a steady supply of goods and products for their *** a result of failure to deliver products,the production and business activities of the business can be delayed which leads to the loss of ***,each trading enterprise will have a variety of commodity supply chains withmultiple *** play an important role and contribute to the value of the entire supply *** any supplier encounters a problem,the whole supply chain of businesses will be affected and could lead to not guaranteeing the stable supply to the ***,suppliers can be seen as a threat to businesses where they have the ability to increase input prices or decrease the quality of the required products and services they *** quantity of the business,and the supply lead time directly affect the operations and reduce the profitability of the *** paper mainly focuses on the supplier selection problemunder a variety of price level and product families when using a two-phase fuzzy multi-objective linear *** objectives of the proposed model are to minimize the total purchasing and ordering cost in order to reduce the quantity of defective materials and the late-delivery components from ***,the piecewise linear membership function is applied in themodel to determine an optimal solution which is based on the requirement of decision makers under their fuzzy *** results of this study can be applied in various business environment and provide a reliable decision tool for choosing potential suppliers relating to these *** on the results,the company canmake a good decision on supplier selection;therefore,the company can improve the quality and quantity of their final *** is because,the best supplier can su

关键词： Supplier selection multi-objective linear programming multiprice level multi-product fuzzy sets

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Enabling Digital Earth simulation models using cloud computing or grid computing-two approaches supporting high-performance GIS simulation frameworks

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International Journal of Digital Earth 2013年第4期6卷 383-403页

作者： Ick-Hoi Kim ming-Hsiang tsou Department of Geography San Diego State UniversitySan DiegoCAUSA

Geospatial simulation models can help us understand the dynamic aspects of Digital *** implement high-performance simulation models for complex geospatial problems,grid computing and cloud computing are two promising computational *** research compares the benefits and drawbacks of both in Web-based frameworks by testing a parallel Geographic Information System(GIS)simulation model(Schelling’s residential segregation model).The parallel GIS simulation model was tested on XSEDE(a representative grid computing platform)and Amazon EC2(a representative cloud computing platform).The test results demonstrate that cloud computing platforms can provide almost the same parallel computing capability as high-end grid computing ***,cloud computing resources are more accessible to individual scientists,easier to request and set up,and have more scalable software architecture for on-demand and dedicated Web *** advantages may attract more geospatial scientists to utilize cloud computing for the development of Digital Earth simulation models in the future.

关键词： grid computing cloud computing parallel computing simulation model geospatial cyberinfrastructure

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Revisiting the death of geography in the era of Big Data:the friction of distance in cyberspace and real space

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International Journal of Digital Earth 2018年第5期11卷 451-469页

作者： Su Yeon Han ming-Hsiang tsou Keith C.Clarke Department of Geography San Diego State UniversitySan DiegoCAUSA Department of Geography University of CaliforniaSanta BarbaraCAUSA

Many scholars have argued that the importance of geographic proximity in human interactions has been diminished by the use of the Internet,while others disagree with this *** have noted the distance decay effect in both cyberspace and real space,showing that interactions occur with an inverse relationship between the number of interactions and the distance between the locations of the ***,these studies rarely provide strong evidence to show the influence of distance on interactions in cyberspace,nor do they quantify the differences in the amount of friction of distance between cyberspace and real *** fill this gap,this study used massive amounts of social media data(Twitter)to compare the influence of distance decay on human interactions between cyberspace and real space in a quantitative *** estimate the distance decay effect in both cyberspace and real space,the distance decay function of interactions in each space was *** the distance decay in cyberspace in this study can help predict the degree of information flow across space through social *** how far ideas can be diffused through social media is useful for users of location-based services,policy advocates,public health officials,and political campaigners.

关键词： First law of geography distance decay Big Data Twitter social media information diffusion

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Reshaping the urban hierarchy:patterns of information diffusion on social media

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Geo-Spatial Information Science 2019年第3期22卷 149-165页

作者： Jiue-An Yang ming-Hsiang tsou Krzysztof Janowicz Keith C.Clarke Piotr Jankowski Calit2/Qualcomm Institute University of California San DiegoLa JollaCAUSA Department of Geography San Diego State UniversitySan DiegoCAUSA Department of Geography University of CaliforniaSanta BarbaraCAUSA dInstitute of Geoecology and Geoinformation Adam Mickiewicz UniversityPoznańPoland

The spatial diffusion of information is a process governed by the flow of interpersonal *** emergence of the Internet and especially social media platforms has reshaped this process and previous research has studied how online social networks contribute to the diffusion of *** such processes can help devise methods to maximize or control the reach of information or even identify upcoming events and social *** activities in cyberspace are still confined to physical locations and this geographic connection tends to be *** this research,we focus on geographic regions instead of individuals and study how the underlying hierarchical structure of regions relates to their response to the *** examined the top 30 populated cities and metropolitan areas in the *** retrieved Twitter data related to two selected topics from these regions,the 2015 Nepal Earthquake and the#JesuisCharlie hashtag in response to the Paris attacks on the Charlie Hebdo *** analyzed the similarity among regions of their response using multiple statistical methods and three urban *** results indicate that the diffusion of information is impacted by the hierarchy of urban regions and that the Twitter responses act more similar when the populated regions are positioned at the same level in the urban hierarchy.

关键词： Information diffusion urban hierarchy spatiotemporal analysis social media

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Crystallization Behavior and Tensile Property of Poly(trimethyleneterephthalate)/Styrene-Ethylene-Buthylene-Styrene Composites

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Journal of Wuhan University of Technology(Materials Science) 2016年第2期31卷 474-480页

作者： tsou Chi-Hui SUEN Maw-Cherng WU Wen-Yen KAO Bo-jlyue YANG ming-Chien tsou Chih-Yuan HUNG Wei-Song Department of Materials and Textiles Oriental Institute of Technology New Taipei City Taiwan 22064 China Center for Thin FilmTechnologies and Applications Department of Materials Engineering Ming Chi University of Technology New Taipei City Taiwan 24301China R&D Center for Membrane Technology Department of Chemical Engineering Chung Yuan University Jongli Taoyuan Taiwan 32023 China Department of Creative Fashion Design Taoyuan Innovation Institute of Technology Jhongli Taiwan 32091 China Department of Fashion Design and Merchandising Shih Chien University Kaohsiung Taiwan 84550 China Department of Materials Science and Engineering National Taiwan University of Science and Technology Taipei Taiwan 10607 China

Poly（trimethyleneterephthalate）（PTT）/styrene-ethylene-buthylene-styrene（SEBS）composites were prepared by melt *** opticalmicroscopy was used to observe the spherulitic morphology and the crystalstructure of PTT and PTT/SEBS *** electron microscopy was used to determine the dispersion and the compatibility of fracture surfaces of PTT and *** curves of thermalgravimetric analysis illustrated that the thermo stability decreased with increasing SEBS *** calorimetry was used to investigate the crystallization behavior;and the result showed that the glass transition temperature of the compound increased with the SEBS *** Avramiequation described the isothermalcrystallization ***-strain curves for PTT and PTT/SEBS composites showed that the elongation at break was enhanced with increasing SEBS content.

关键词： poly(trimethyleneterephthalate)(PTT) styrene-ethylene-buthylene-styrene(SEBS) crystallization

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Endoscopic salvage therapy after failed biliary cannulation using advanced techniques:A concise review

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World Journal of Gastroenterology 2022年第29期28卷 3803-3813页

作者： Yung-Kuan tsou Kuang-Tse Pan Mu Hsien Lee cheng-Hui Lin Department of Gastroenterology and Hepatology Chang Gung Memorial HospitalTaoyuan 333Taiwan Department of Medicine Chang Gung UniversityTaoyuan 333Taiwan Department of Medical Imaging and Intervention Chang Gung Memorial HospitalTaoyuan 333Taiwan

Therapeutic endoscopic retrograde cholangiopancreatography(ERCP)begins with successful biliary ***,it is not always be *** failure of the initial ERCP is attributed to two main aspects:the papilla/biliary orifice is endoscopically accessible,or it is *** the papilla/biliary orifice is accessible,bile duct cannulation failure can occur even with advanced cannulation techniques,including double guidewire techniques,transpancreatic sphincterotomy,needle-knife precut papillotomy,or *** is currently no consensus on the next steps of treatment in this ***,this review aims to propose and discuss potential endoscopic options for patients who have failed ERCP due to difficult bile duct *** options include interval ERCP,percutaneous-transhepatic-endoscopic rendezvous procedures(PTE-RV),and endoscopic ultrasound-assisted rendezvous procedures(EUS-RV).The overall success rate for interval ERCP was 76.3%(68%-79% between studies),and the overall adverse event rate was 7.5%(0-15.9% between studies).The overall success rate for PTE-RV was 88.7%(80.4%-100%between studies),and the overall adverse event rate was 13.2%(4.9%-19.2% between studies).For EUS-RV,the overall success rate was 82%-86.1%,and the overall adverse event rate was 13%-15.6%.Because interval ERCP has an acceptably high success rate and lower adverse event rate and does not require additional expertise,facilities,or other specialists,it can be considered the first choice for salvage ***-RV can also be considered if local experts are *** patients in urgent need of biliary drainage,PTE-RV should be considered.

关键词： Difficult biliary cannulation Endoscopic ultrasound Rendezvous Endoscopic retrograde cholangiopancreatography Percutaneous transhepatic biliary drainage Interval

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Acute cholangitis: Does malignant biliary obstruction vs choledocholithiasis etiology change the clinical presentation and outcomes?

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World Journal of Clinical Cases 2023年第29期11卷 6984-6994页

作者： Yung-Kuan tsou Yi-Tse Su cheng-Hui Lin Nai-Jen Liu Department of Gastroenterology and Hepatology Chang Gung Memorial HospitalTaoyuan 333TaiwanChina

BACKGROUND Whether clinical outcomes of acute cholangitis(AC)vary by etiology is *** To compare outcomes in AC caused by malignant biliary obstruction(MBO)and common bile duct stones(CBDS).METHODS This retrospective study included 516 patients undergoing endoscopic retrograde cholangiopancreatography(ERCP)due to AC caused by MBO(MBO group,n=56)and CBDS(CBDS group,n=460).Clinical and laboratory parameters were compared between the *** score matching(PSM)created 55 matched *** used in the PSM analysis were age,sex,time to ERCP,and technical success of *** primary outcome comparison was 30-d *** secondary outcome comparisons were intensive care unit(ICU)admission rate,length of hospital stay(LOHS),and 30-d readmission *** Compared with the CBDS group,the MBO group had significantly lower body temperature,percentage of abnormal white blood cell counts,and serum levels of aspartate aminotransferase,alanine aminotransferase,and *** temperature,percent abnormal white blood cell count,and serum aspartate aminotransferase levels remained significantly lower in the MBO group in the PSM *** count,prothrombin time/international normalized ratio,and serum levels of alkaline phosphatase and total bilirubin were significantly higher in the MBO *** MBO group had a significantly higher percentage of severe AC(33.9%vs 22.0%,P=0.045)and received ERCP later(median,92.5 h vs 47.4 h,P<0.001).However,the two differences were not found in the PSM *** 30-d mortality(5.4%vs 0.7%,P=0.019),ICU admission rates(12.5%vs 4.8%,P=0.028),30-d readmission rates(23.2%vs 8.0%,P<0.001),and LOHS(median,16.5 d vs 7.0 d,P<0.001)were significantly higher or longer in the MBO ***,only LOHS remained significant in the PSM *** analysis revealed that time to ERCP and multiple organ dysfunction were independent factors associated with 30-d *** MBO patients underwent ERC

关键词： Malignant biliary obstruction Common bile duct stones Endoscopic retrograde cholangiopancreatography Acute cholangitis Mortality Etiology

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Altered heart rate variability and pulse-wave velocity after spinal cord injury

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World Journal of Clinical Cases 2022年第27期10卷 9680-9692页

作者： Hsi-Kai tsou Kuan-Chung Shih Yueh-Chiang Lin Yi-ming Li Hsiao-Yu Chen Functional Neurosurgery Division Neurological InstituteTaichung Veterans General HospitalTaichung 404Taiwan Department of Rehabilitation Jen-Teh Junior College of MedicineNursing and ManagementMiaoli County 356Taiwan College of Health National Taichung University of Science and TechnologyTaichung 403Taiwan College of Medicine National Chung Hsing UniversityTaichung 402Taiwan Research Assistant The Rong Sing Medical FoundationTaichung 404Taiwan Research Assistant Neurological InstituteTaichung Veterans General HospitalTaichung 404Taiwan Research Assistant Department of NursingNational Taichung University of Science and TechnologyTaichung 403Taiwan Graduate Institute of Applied Science and Technology National Taiwan University of Science and TechnologyTaipei 106Taiwan Department of Nursing National Taichung University of Science and TechnologyTaichung 403Taiwan

BACKGROUND Heart rate variability(HRV) and pulse-wave velocity(PWV),indicators of cardiac function,are altered in patients with spinal cord injury(SCI),suggesting that autonomic cardiac function and arterial stiffness may underlie the high risk of cardiovascular complications in these *** study has simultaneously investigated HRV and PWV in the same *** To evaluate cardiovascular complications in SCI patients by comparing HRV and PWV between patients with and without *** In this cross-sectional pilot study,patients with(n = 60) and without SCI(n = 60) were recruited from December 7,2019 to January 21,*** participant received a five-minute assessment of HRV and the cardiovascular system using the Medicore HRV Analyzer SA-3000 *** in HRV and PWV parameters between participants with and without SCI were statistically *** We observed a significant difference between participants with and without SCI with respect to the standard deviation of all normal-to-normal intervals,square root of the mean sum of squared successive risk ratio interval differences,physical stress index,total power,very-low frequency,low frequency,high frequency,and arterial *** Patients with SCI have weaker sympathetic and parasympathetic activity as well as lower arterial elasticity compared to those without,suggesting that SCI may increase cardiac function loading.

关键词： Acceleration plethysmography Cardiac function Heart rate variability Pulse wave velocity Spinal cord injury

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Pancreatic stent improves the success rate of needle-knife papillotomy in patients with difficult biliary cannulation

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World Journal of Gastroenterology 2025年第1期31卷 58-67页

作者： Mu-Hsien Lee cheng-Hui Lin Chi-Huan Wu Yung-Kuan tsou Kai-Feng Sung Sheng-Fu Wang Nai-Jen Liu Department of Gastroenterology and Hepatology Chang Gung Memorial Hospital and Chang Gung University College of MedicineTaoyuan 33305Taiwan School of Medicine Chang Gung UniversityTaoyuan 33305Taiwan

BACKGROUND Needle-knife precut papillotomy(NKP)is typically performed ***,it remains unclear whether pancreatic stent(PS)placement can improve the outcomes of *** To explore whether PS placement improves the success rate of NKP in patients with difficult biliary *** This single-center retrospective study included 190 patients who underwent NKP between January 2017 and December 2021 after failed conventional biliary *** cases with incidental pancreatic duct cannulation during conventional biliary cannulation,the decision for pre-NKP PS placement was made at the endoscopist's *** primary outcome was the difference in the NKP success rate between patients with and without PS placement;the secondary outcome was the adverse event *** Among the 190 participants,82 received pre-NKP PS(PS-NKP group)whereas 108 did not[freehand or freehand NKP(FH-NKP)group].Post-NKP selective biliary cannulation was successful in 167(87.9%)patients,and the PS-NKP had a significantly higher success rate than the FH-NKP group(93.9%vs 83.3%,P=0.027).The overall adverse event rates were 7.3%and 11.1%in the PS-NKP and FH-NKP groups,respectively(P=0.493).A periampullary diverticulum(PAD)and significant intraoperative bleeding during NKP were independently associated with NKP failure;however,a pre-NKP PS was the only predictor of NKP *** the 44 participants with PADs,the PS-NKP group had a non-significantly higher NKP success rate than the FH-NKP group(87.5%and 65%,respectively;P=0.076).CONCLUSION PS significantly improved the success rate of NKP in patients with difficult biliary cannulation.

关键词： Difficult biliary cannulation Endoscopic retrograde cholangiopancreatography Needle-knife papillotomy Pancreatic stent Selective biliary cannulation

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Residual common bile duct stones on direct peroral cholangioscopy using ultraslim endoscope

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World Journal of Gastroenterology 2013年第30期19卷 4966-4972页

作者： Shu-Wei Huang cheng-Hui Lin Mu-Shien Lee Yung-Kuan tsou Kai-Feng Sung Department of Gastroenterology and Hepatology Division of Digestive Therapeutic EndoscopyChang Gung Memorial HospitalChang Gung University College of Medicine

AIM:To detect and manage residual common bile duct(CBD)stones using ultraslim endoscopic peroral cholangioscopy(POC)after a negative balloon-occluded ***:From March 2011 to December 2011,a cohort of 22 patients with CBD stones who underwent both endoscopic retrograde cholangiography(ERC)and direct POC were prospectively enrolled in this *** patients who were younger than 20 years of age,pregnant,critically ill,or unable to provide informed consent for direct POC,as well as those with concomitant gallbladder stones or CBD with diameters less than 10 mm were *** POC using an ultraslim endoscope with an overtube balloon-assisted technique was carried out immediately after a negative balloon-occluded cholangiography was ***:The ultraslim endoscope was able to be advanced to the hepatic hilum or the intrahepatic bile duct(IHD)in 8 patients(36.4%),to the extrahepatic bile duct where the hilum could be visualized in 10 patients(45.5%),and to the distal CBD where the hilum could not be visualized in 4 patients(18.2%).The procedure time of the diagnostic POC was 8.2 ± 2.9 min(range,5-18 min).Residual CBD stones were found in 5(22.7%)of the *** was one residual stone each in 3 of the patients,three in 1 patient,and more than five in 1 *** diameter of the residual stones ranged from 2-5 *** 2 of the patients,the residual stones were successfully extracted using either a retrieval balloon catheter(n = 1)or a basket catheter(n = 1)under direct endoscopic *** the remaining 3 patients,the residual stones were removed using an irrigation and suction method under direct endoscopic *** were no serious procedure-related complications,such as bleeding,pancreatitis,biliary tract infection,or perforation,in this ***:Direct POC using an ultraslim endoscope appears to be a useful tool for both detecting and treating residual CBD stones after conventional ERC.

关键词： Balloon-occluded cholangiography Common bile duct stones Endoscopic retrograde cholangiography Peroral cholangioscopy Residual stones

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