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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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Modeling and predicting dengue fever cases in key regions of the Philippines using remote sensing data

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Asian Pacific Journal of Tropical Medicine 2019年第2期12卷 60-66页

作者： Maria Ruth B.Pineda-Cortel Benjie M.Clemente pham thi Thanh Nga Department of Medical Technology Faculty of PharmacyUniversity of Santo Tomas Research Center for the Natural and Applied Sciences University of Santo Tomas The Graduate School University of Santo Tomas Vietnam National Space Center Vietnam Academy of Science and Technology

Objective: To correlate climatic and environmental factors such as land surface temperature, rainfall, humidity and normalized difference vegetation index with the incidence of dengue to develop prediction models for the Philippines using remote-sensing ***: Timeseries analysis was performed using dengue cases in four regions of the Philippines and monthly climatic variables extracted from Global Satellite Mapping of Precipitation for rainfall, and MODIS for the land surface temperature and normalized difference vegetation index from *** dataset during the period of study was utilized in Autoregressive Integrated Moving Average models to predict dengue incidence in the four regions being ***: The best-fitting models were selected to characterize the relationship between dengue incidence and climate *** predicted cases of dengue for January to December 2015 period fitted well with the actual dengue cases of the same *** also showed significantly good linear regression with a square of correlation of 0.869 5 for the four regions ***: Climatic and environmental variables are positively associated with dengue incidence and suit best as predictor factors using Autoregressive Integrated Moving Average *** finding could be a meaningful tool in developing an early warning model based on weather forecasts to deliver effective public health prevention and mitigation programs.

关键词： Dengue fever Climate change Remote sensing data Autoregressive Integrated Moving Average models

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Simultaneous Quantitative Analysis of Five Components in Angelica sinensis and Angelica acutiloba Acclimatized Growing in Vietnam by High-Performance Liquid Chromatography with Photodiode Array Detector

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World Journal of Traditional Chinese Medicine 2021年第1期7卷 6-10页

作者： thi Minh Tam pham thi Thu Cuc Le Van Thanh Nguyen Viet Hung Tran Departments of Microbiology Institute of Drug Quality ControlHo Chi Minh City Departments of Instrumental Analysis Institute of Drug Quality ControlHo Chi Minh City Institute of Drug Quality Control Ho Chi Minh City Faculty of Pharmacy Nguyen Tat Thanh UniversityHo Chi Minh CityVietnam

Background:Chinese Danggui(Angelica sinensis)and Japanese Danggui(Angelica acutiloba)are evaluated as the same in using and critical of quality control in Vietnamese *** Vietnam,Japanese Danggui were acclimatized and cultivated in several regions in recent *** the huge climatic difference between Vietnam and Japan,Japanese Danggui grows very well in ***,there are no studies to assess the overall quality of this medicinal *** and Objectives:The aim of this study is to develop a method to identify and assay simultaneously 5 component compounds of these crude herbs:chlorogenic acid,ferulic acid,scopoletin,xanthotoxin and ligustilide by high-performance liquid chromatography with photodiode array detector(HPLC-PDA).Materials and Methods:The procedure was optimized by using column Phenomenex Gemini 5μm PR C18,15 x 4,6 mm with the detection wavelength set at 321 nm for detector PDA and mobile phase was composed of(A)ACN and(B)aqueous solution 1%of acid acetic using a gradient *** were performed at 30°C with a flow rate of 1.0 mL/***:The developped method were fully validated for linearity,accuracy,recovery and met the validation requirements,proved practical applicability for the quality control of these herbs and related ***:The method was successfully applied to the quantification of five markers simultaneously from collected samples.

关键词： Chlorogenic acid Danggui ferulic acid ligustilide scopoletin xanthotoxin

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Surface Mapping of Resistive Switching CrO_x thin Films

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Advances in Materials Physics and Chemistry 2016年第3期6卷 21-27页

作者： Kim Ngoc pham Kieu Hanh thi Ta lien Thuong thi Nguyen Vinh Cao Tran Bach Thang Phan Faculty of Materials Science University of Science Vietnam National University Ho Chi Minh City Vietnam Faculty of Resources and Environment Thu Dau Mot University Binh Duong City Vietnam Laboratory of Advanced Materials University of Science Vietnam National University Ho Chi Minh City Vietnam

In this work, we investigated resistive switching behavior of CrOx thin films grown by using sputtering technique. Conventional I-V measurements obtained from Ag/CrOx/Pt/Ti/SiO2/Si structures depict the bipolar switching behavior, which is controlled by formation/dissolution processes of Ag conducting filaments through electrochemical redox reaction under external electric field driven. Conductive atomic force microscopy (C-AFM) technique provides the valuable mapping images of existing Ag filaments at low resistance state as well as the characteristics of filament distributions and diameters. this study also reveals that where the higher amplitude of topography is, the easier possibility of forming conducting filament paths is on CrOx surface films.

关键词： Resistive Switching Chromium Oxide C-AFM Surface Mapping Metal Filament

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On the central symmetry of the circumstellar envelope of RS Cnc

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Research in Astronomy and Astrophysics 2015年第5期15卷 713-724页

作者： pham Tuyet Nhung Do thi Hoai Jan Martin Winters Pierre Darriulat Eric Grard thibaut Le Bertre VATLY INST 179 Hoang Quoc Viet Cau Giay Hanoi Vietnam LERMA UMR 8112 CNRS & Observatoire de Paris 61 av. de l’Observatoire F-75014 ParisFrance IRAM 300 rue de la Piscine Domaine Universitaire F-38406 St. Martin d’Heres France GEPI UMR 8111 CNRS & Observatoire de Paris 5 Place J. Janssen F-92195 Meudon CedexFrance

We present a phenomenological study of CO（1-0） and CO（2-1） emission from the circumstellar envelope （CSE） of the Asymptotic Giant Branch （AGB） star RS Cnc. It reveals departures from central symmetry that turn out to be efficient tools for the exploration of some of the properties of the CSE. We use a wind model including a bipolar flow with a typical wind velocity of ～8 km s^-1 that decreases to ～2 km s^-1 near the equator. this wind model is used to describe Doppler velocity spectral maps obtained by merging data collected at the IRAM Plateau de Bure Interferometer and Pico Veleta single dish radio telescope. Parameters describing the wind morphology and kinematics are obtained, together with the radial dependence of the gas temperature in the domain of the CSE probed by the CO observations. Significant north-south central asymmetries are revealed by the analysis, which we quantify using a simple phenomenological description. The origin of such asymmetries is unclear.

关键词： stars AGB and post-AGB -- stars individual (RS Cnc) -- stars mass loss -- radio lines general

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The future of COVID-19 vaccination rates for children

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Asian Pacific Journal of Tropical Medicine 2022年第9期15卷 381-382页

作者： Giao Huynh Kimberly H.Nguyen Han thi Ngoc Nguyen Tuan Diep Tran pham Le An Faculty of Public Health University of Medicine and Pharmacy at Ho Chi Minh CityHo Chi Minh CityVietnam Department of Public Health and Community Medicine Tufts University School of MedicineBostonMAUSA Infection Control Department University Medical Center Ho Chi Minh CityHo Chi Minh CityVietnam Faculty of Medicine University of Medicine and Pharmacy at Ho Chi Minh CityHo Chi Minh CityVietnam Family Medicine Training Center University of Medicine and Pharmacy at Ho Chi Minh CityHo Chi Minh CityVietnam

The COVID-19 pandemic has been ongoing for over two years since the first case was reported in the end of January *** has successfully controlled the pandemic through its vaccination campaign,targeted messages and applications of various public health interventions including social distancing,quarantining,masking,and hand washing,which have made some significant achievements in reducing hospitalizations and deaths[1].

关键词： vaccination targeted COV

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Viral co-infections among children with confirmed measles at hospitals in Hanoi,Vietnam,2014

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Asian Pacific Journal of Tropical Medicine 2017年第2期10卷 164-167页

作者： Hang Le Khanh Nguyen Loan Phuong Do Van Thanh thi Trieu Son Vu Nguyen Phuong Vu Mai Hoang Hien thi pham Thanh thi Le Huong thi Thu Tran Cuong Duc Vuong Mai thi Quynh Le National Institute of Hygiene and Epidemiology No 1-Yesrsin streetHanoiVietnam

Objective:To characterize viral co-infections among representative hospitalized measles cases during the 2014 Hanoi ***:Throat swabs were collected from 54 pediatric patients with confirmed measles,and molecular diagnostics performed for 10 additional viral respiratory pathogens(Influenza A/H1N1pdm09;A/H3N2 and influenza B;Parainfluenza 1,2,3;Respiratory Synctial Virus,RSV;human Metapneumovirus,hM PV;Adenovirus and Picornavirus).Results:Twenty-one cases(38.9%) showed evidence of infection with other respiratory viruses:15 samples contained measles plus one additional virus,and 6 samples contained measles plus 2 additional *** was detected as a predominant cause of co-infections(13 cases;24.1%),followed by RSV(6 cases;11.1%),A/H1N1pdm09(3 cases;5.6%),PIV3(3 cases;3.7%),Rhinovirus(3 cases;3.7%) and hM PV(1 case;1.96%).Conclusions:Viral co-infections identified from pediatric measles cases may have contributed to increased disease severity and high rate of fatal *** treatment of measles cases may require control of multiple viral respiratory pathogens.

关键词： Measles virus Respiratory viruses Co-infection

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Brunner’s gland hyperplasia associated with lipomatous pseudohypertrophy of the pancreas presenting with gastrointestinal bleeding:A case report

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World Journal of Clinical Cases 2021年第31期9卷 9670-9679页

作者： Long Cong Nguyen Khanh Truong Vu Trang thi Thuy Vo Chau Ha Trinh Tan Dang Do Ngoc thi Van pham Tuyen Van pham Thanh Tuan Nguyen Hiep Canh Nguyen Jeong-Sik Byeon Gastroenterology and Hepatology Center Bach Mai HospitalHanoi 10000Viet Nam Department of Gastroenterology School of Medicine and PharmacyVietnam National University HanoiHanoi 10000Viet Nam Radiology Center Bach Mai HospitalHanoi 10000Viet Nam Pathology Center Bach Mai HospitalHanoi 10000Viet Nam Department of Human Pathology Kanazawa University Graduate School of MedicineKanazawa 920-8640Japan Department of Gastroenterology Asan Medical CenterUniversity of Ulsan College of MedicineSeoul 05505South Korea

BACKGROUND Brunner’s gland hyperplasia(BGH)is a rare benign lesion of the *** pseudohypertrophy(LiPH)of the pancreas is an extremely rare *** each condition is rare,the probability of purely coincidental coexistence of both conditions is extremely *** SUMMARY We report a 26-year-old man presenting to our hospital with symptoms of recurrent upper gastrointestinal *** gastrointestinal endoscopy showed a huge pedunculated polypoid lesion in the duodenum with bleeding at the base of the *** examination of the duodenal biopsy specimens showed ***,abdominal computed tomography and magnetic resonance imaging revealed marked fat replacement over the entire pancreas,confirmed by histopathological evaluation on percutaneous pancreatic *** on the radiological and histological findings,LiPH of the pancreas and BGH were *** patient refused any surgical ***,he was managed with supportive *** patient’s symptoms improved and there was no further *** this is the first well-documented case showing the coexistence of LiPH of the pancreas and BGH.

关键词： Lipomatous pseudohypertrophy Pancreas Gastrointestinal bleeding Brunner’s gland Case report

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Isolation and Identification of Two Flavonoid Compounds from Acclimatized Angelica acutiloba Kitagawa Growing in Vietnam

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World Journal of Traditional Chinese Medicine 2022年第3期8卷 413-416页

作者： thi Minh Tam pham thi Thu Cuc Le Viet Hung Tran Van Thanh Nguyen Department of Microbiology Institute of Drug Quality ControlDepartment of Analytical Chemistry and Quality ControlUniversity of Medicine and PharmacyHo Chi Minh CityVietnam Department of Analytical Chemistry and Quality Control Nguyen Tat Thanh UniversityHo Chi Minh CityVietnam Department of Microbiology Institute of Drug Quality ControlHo Chi Minh CityVietnam

Traditional Vietnamese Medicine has its own development based on the local endemic herbs,but it also inherits from Traditional Chinese Medicine using Chinese herbal *** the history of cultural exchange between two countries,the adoption of Chinese Danggui,Angelica sinensis(Oliv.)Diels.,has been made by Vietnamese traditional medicine practitioners for a long ***,the acclimatization has never been *** Danggui,or Angelica acutiloba Kitagawa,is recently being acclimatized and cultivated in several Vietnamese *** the huge climate change between the two countries,the herb adapted exquisitely well to the humid tropical ***,so far,there are no studies that have evaluated the effect of acclimatization on the overall quality of this medicinal *** aim of our study is screening secondary metabolites of this acclimatized herb for new natural compound(s),if *** analysis of flavonoid fraction from this herb led to the identification of two known compounds which previously have not been isolated from this species *** detection showed that the herb has reacted to the new environment.

关键词： Abiotic stress Angelica acutiloba danggui isoquercitrin rutin

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Indications for and techniques of keratoplasty at Vietnam National Institute of Ophthalmology

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International Journal of Ophthalmology(English edition) 2016年第3期9卷 379-383页

作者： pham Ngoc Dong Truong Nhu Han Anthony J.Aldave Hoang thi Minh Chau Vietnam National Institute of Ophthalmology HanoiVietnam Stein Eye Institute the University of California Los Angeles CA 90095-7003 USA

AIM： To report the indications for and techniques of corneal transplantation at Vietnam National Institute of Ophthalmology （VNIO） over a period of 12y （2002-2013）, METHODS： Records of patients who had undergone corneal transplantation at VNIO from January 1, 2002 to January 1, 2014 were reviewed to determine the indication for and type of corneal transplant performed. Patient age, gender, indication for corneal transplantation and surgical technique were recorded and analyzed. RESULTS： Corneal transplantation were underwent in 1390 eyes of 1278 patients with a mean age of 44.9±18.1y during the period under review. The most common indication was infectious corneal ulcer （n=670; 48.2%）, followed by corneal scar （n=333, 24.0% ）, corneal dystrophy （n=138, 9.9%） and failed graft （n=112, 8.1%）. Nearly all procedures performed were penetrating keratoplasty （n=1300, 93.5% ）, with a few lamellar keratoplasty procedures performed： lamellar keratoplasty （n=52, 3.7%）, Descemet＇s stripping automated endothelial keratoplasty （n =27, 1.9% ） and deep anterior lamellar keratoplasty （n =11, 0.8%）.CONCLUSION： While the most common indication for keratoplasty was infectious keratitis, nearly all indications for corneal transplantation were managed with penetrating keratoplasty, However, lamellar keratoplasty techniques, including deep anterior lamellar keratoplasty and Descemet＇s stripping automated endothelial keratoplasty, are being performed with increasing frequency for isolated stromal and endothelial disorders, respectively,

关键词： penetratingkeratoplasty, lamellarkeratoplasty endothelial keratoplasty indication for keratoplasty technique of keratoplasty

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