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Optimization Model in Manufacturing Scheduling for the Garment Industry

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Computers, Materials & Continua 2022年第6期71卷 5875-5889页

作者： Chia-nan Wang Yu-Chen Wei Po-Yuk So Viet Tinh nguyen phan nguyen ky phuc Department of Industrial Engineering and Management National Kaohsiung University of Science and TechnologyKaohsiung80778Taiwan Department of Money and Banking National Kaohsiung University of Science and TechnologyKaohsiung80778Taiwan Ph.D.Program in Finance and Banking National Kaohsiung University of Science and TechnologyKaohsiung80778Taiwan Faculty of Commerce Van Lang UniversityHo Chi Minh CityVietnam Faculty of Industrial Engineering and Management International UniversityHo Chi Minh City70000Vietnam

The garment industry in Vietnam is one of the country’s strongest industries in the ***,the production process still encounters problems regarding scheduling that does not equate to an optimal *** paper introduces a production scheduling solution that resolves the potential delays and lateness that hinders the production process using integer programming and order allocation with a make-to-order manufacturing viewpoint.A number of constraints were considered in the model and is applied to a real case study of a factory in order to viewhowthe tardiness and latenesswould be affected which resulted in optimizing the scheduling time ***,the constraints considered were order assignments,production time,and tardiness with an objective function which is to minimize the total cost of *** results of the study precisely the overall cost of delay of the orders given to the plant and successfully propose a suitable production schedule that utilizes the most of the plant *** study has shown promising results that would assist plant and production managers in determining an algorithm that they can apply for their production process.

关键词： Production scheduling problem order allocation integer programming make-to-order manufacturing apparel industry

Patterns of hepatitis B virus exposure and associated predictors in Vietnam: A crosssectional study

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Asian Pacific Journal of Tropical Medicine 2020年第12期13卷 535-541页

作者： Minh C.Duong phuc V.D.Le Oanh n.k.Pham Hien D.T.Pham Toan B.nguyen Hai T.phan School of Public Health and Community Medicine University of New South WalesSydneyNew South WalesAustralia MEDIC Medical Center Ho Chi Minh CityVietnam Hospital for Tropical Diseases Ho Chi Minh CityVietnam Pham ngoc Thach University of Medicine Ho Chi Minh CityVietnam

Objective:To examine the magnitude of isolated anti-HBc and other HBV serological patterns and associated predictors among adults seeking general health check-up at a large health center in ***:All 564 outpatients seeking general health checkup between January 2016 and December 2016 were asked to undertake HBV surface antigen,surface antibody,IgG and IgM core antibody(anti-HBc total),platelet counts,and liver function *** administered questionnaire was used to collect information regarding demography,in-house sources of infection,lifestyle,health condition and treatment,and HBV ***:Male gender(P=0.043),age(P=0.000),living in urban areas(P=0.040),HBV vaccination status(P=0.033),and ALT(P=0.040) were associated with isolated *** infection was associated with HBV vaccination status(P=0.001),ALT levels(P=0.010),AST levels(P=0.020),and platelet counts(P=0.007).Past/resolved HBV infection was associated with AST levels(P=0.005),ALT levels(P=0.014),and age(P=0.000).Conclusions:Isolated anti-HBc is quite *** of isolated anti-HBc include male gender,living in rural areas,and HBV *** prevalence of isolated anti-HBc also increases with *** timely detect occult HBV infection and prevent transmission,anti-HBc testing should be included in the health check-up for high risk individuals and screening program where HBV nucleic acid test is not *** prevent transmission,clinicians need to pay more attention on those who are at risk of having isolated anti-HBc and closely follow-up patients with isolated anti-HBc and educate them about the prevention of HBV infection.

关键词： prevention seeking Vietnam

Distinct behavior of electronic structure under uniaxial strain in BaFe_(2)As_(2)

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Chinese Physics B 2024年第1期33卷 675-679页

作者：李佳俊 Giao ngoc phan 王兴玉杨发枝胡全欣贾可赵金刘文尧张任杰石友国李世亮钱天丁洪 Beijing national Laboratory for Condensed Matter Physics and Institute of Physics Chinese Academy of SciencesBeijing 100190China School of Physics University of Chinese Academy of SciencesBeijing 100190China CAS Center for Excellence in Topological Quantum Computation University of Chinese Academy of SciencesBeijing 100190China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China Songshan Lake Materials Laboratory Dongguan 523808China Tsung-Dao Lee Institute Shanghai Jiao Tong UniversityShanghai 201210China

We report a study of the electronic structure of BaFe_(2)As_(2) under uniaxial strains using angle-resolved photoemission spectroscopy and transport measurements. Two electron bands at the MY point, with an energy splitting of 50 meV in the strain-free sample, shift downward and merge into each other under a large uniaxial strain, while three hole bands at theГ point shift downward together. However, we also observed an enhancement of the resistance anisotropy under uniaxial strains by electrical transport measurements, implying that the applied strains strengthen the electronic nematic order in BaFe_(2)As_(2). These observations suggest that the splitting of these two electron bands at the MY point is not caused by the nematic order in BaFe_(2)As_(2).

关键词： iron-based superconductor angle-resolved photoelectron spectroscopy uniaxial strain symmetry breaking

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Is convenience really king? Comparative evaluation of catastrophic costs due to tuberculosis in the public and private healthcare sectors of Viet nam: a longitudinal patient cost study

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贫困所致传染病(英文) 2024年第2期13卷 17-28页

作者： nguyen Hoa Binh Quang Vo Luan nguyen Forse Rachel Jeanette Wiemers Anja Maria Christine Huynh Huy Ba Dong Thuy Thi Thu phan Yen Thi Hoang Creswell Jacob Dang Thi Minh Ha nguyen Lan Huu Shedrawy Jad L?nnroth knut nguyen Tuan Dinh Van Dinh Luong Annerstedt kristi Sidney Codlin Andrew James national Lung Hospital Ha Noi Viet Nam Friends for International TB Relief Ha Noi Viet Nam Department of Global Public Health WHO Collaboration Centre On Tuberculosis and Social Medicine Karolinska Institute Stockholm Sweden Stop TB Partnership Geneva Switzerland Pham ngoc Thach Hospital Ho Chi Minh City Viet Nam

Background In Viet nam, tuberculosis (TB) represents a devastating life-event with an exorbitant price tag, partly due to lost income from daily directly observed therapy in public sector care. Thus, persons with TB may seek care in the private sector for its flexibility, convenience, and privacy. Our study aimed to measure income changes, costs and catastrophic cost incurrence among TB-affected households in the public and private *** Between October 2020 and March 2022, we conducted 110 longitudinal patient cost interviews, among 50 patients privately treated for TB and 60 TB patients treated by the national TB Program (nTP) in Ha noi, Hai Phong and Ho Chi Minh City, Viet nam. Using a local adaptation of the WHO TB patient cost survey tool, participants were interviewed during the intensive phase, continuation phase and post-treatment. We compared income levels, direct and indirect treatment costs, catastrophic costs using Wilcoxon rank-sum and chi-squared tests and associated risk factors between the two cohorts using multivariate *** The pre-treatment median monthly household income was significantly higher in the private sector versus nTP cohort (USD 868 vs USD 578;P=0.010). However, private sector treatment was also significantly costlier (USD 2075 vs USD 1313;P=0.005), driven by direct medical costs which were 4.6 times higher than costs reported by nTP participants (USD 754 vs USD 164;Pn no significant difference in catastrophic costs between the two cohorts (Private: 55% vs nTP: 52%;P=0.675). Factors associated with catastrophic cost included being a single-person household [adjusted odds ratio [(aOR=13.71; 95% confidence interval (CI): 1.36–138.14;P=0.026], unemployment during treatment (aOR=10.86; 95%CI: 2.64–44.60;Pnd experiencing TB-related stigma (aOR=37.90; 95%CI: 1.72–831.73;P=0.021).Conclusions Persons with TB in Viet nam face similarly high risk of catastrophic costs whether treated in the

关键词： Tuberculosis Patient cost Catastrophic cost Private sector Comparative analysis Viet nam

Scheduling Flexible Flow Shop in Labeling Companies to Minimize the Makespan

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Computer Systems Science & Engineering 2022年第1期40卷 17-36页

作者： Chia-nan Wang Hsien-Pin Hsu Hsin-Pin Fu nguyen ky phuc phan Van Thanh nguyen Department of Industrial Engineering and Management National Kaohsiung University of Science and TechnologyKaohsiung80778Taiwan Department of Supply Chain Management National Kaohsiung University of Science and TechnologyKaohsiung80778Taiwan Department of Marketing and Distribution Management National Kaohsiung University of Science and TechnologyKaohsiung80778Taiwan Faculty of Industrial Engineering and Management International UniversityHo Chi Minh City70000Vietnam Faculty of Commerce Van Lang UniversityHo Chi Minh City723000Vietnam

In the competitive global marketplace,production scheduling plays a vital role in planning in *** deals directly with the time to output products quickly and with a low production *** research examines case study of a Radio-Frequency Identification labeling department at Avery *** main objective of the company is to have a method that allows for the sequencing and scheduling of a set of jobs so it can be completed on or before the customer’s due date to minimize the number of late *** study analyzes the flexible flow shop scheduling problem with a sequence dependent setup by modifying the processing time and setup time to minimize the makespan on multiple *** on the defined mathematical model,this study includes an alternative approach and application of heuristic algorithm with the input being big *** optimization programs are used in this study and compared to determine which method can better solve the company’s *** proposed algorithm is able to improve machine utilization with large-scale problems.

关键词： Scheduling flexibleflowshop sequencedependentsetup just-in-time

使用多级氧化方法高效氧化溶液中的硫代硫酸盐(英文)

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Transactions of nonferrous Metals Society of China 2024年

作者：徐浩然黄伟超 Annavarapu V.RAVInDRA Duclenh phan Thiquynhxuan LE 张利波尹少华昆明理工大学冶金与能源工程学院中国稀土(广西)金源稀土新材料有限公司 Department of Physics and nanotechnology， Faculty of Engineering and Technology， SRM Institute of Science and Technology Science and Technology Center， MienTrung Industry and Trade College

脱硫溶液的氧化是烟气脱硫中至关重要的过程。现有的硫代硫酸盐脱硫液氧化工艺存在脱除效率低、容易产生硫磺杂质、氧化剂用量大等缺点。本工作采用热力学计算和模拟脱硫溶液实验，分别研究了亚硫酸盐和硫代硫酸盐在氧气和过硫酸盐氧化... 详细信息

脱硫溶液的氧化是烟气脱硫中至关重要的过程。现有的硫代硫酸盐脱硫液氧化工艺存在脱除效率低、容易产生硫磺杂质、氧化剂用量大等缺点。本工作采用热力学计算和模拟脱硫溶液实验，分别研究了亚硫酸盐和硫代硫酸盐在氧气和过硫酸盐氧化剂作用下氧化特性的差异。随后，提出了一种新的氧气-过硫酸铵多级氧化方法，并将其应用于实际脱硫溶液的氧化。结果表明，实际脱硫液中硫代硫酸盐和亚硫酸盐的浓度分别从48.76和61.76 g/L降至2.24和0.02 g/L，得到的硫酸铵产品为白色，颗粒均匀。此外，与单独使用过硫酸铵相比，多级氧化法可减少37.56%的过硫酸铵添加量，降低28.13%的处理成本。

关键词：过硫酸铵氧气硫代硫酸盐脱硫溶液成本对比

Robust exponential stability and stabilization of linear uncertain polytopic time-delay systems

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控制理论与应用（英文版） 2008年第2期6卷 163-170页

作者： nam phan T. Phat VU n. Department of Mathematics Quynhon UniversityQuynhonBinhdinhVietnam Institute of Mathematics 18 Hoang Quoc Viet RoadHanoiVietnam

This paper proposes new sufficient conditions for the exponential stability and *** linear uncertain polytopic time-delay systems. The conditions for exponential stability are expressed in terms of kharitonov-type linear matrix inequalities （LMIs） and we develop control design methods based on LMIs for solving stabilization problem. Our method consists of a combination of the LMI approach and the use of parameter-dependent Lyapunov functionals, which allows to compute simultaneously the two bounds that characterize the exponetial stability rate of the solution. numerical examples illustrating the conditions are given.

关键词： Polytopic time-delay system Exponential stability Stabilization Parameter-dependent Lyapunov function Linear matrix inequalities

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Overexpression of Arabidopsis Sorting nexin AtSnX2b Inhibits Endocytic Trafficking to the Vacuole

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Molecular Plant 2008年第6期1卷 961-976页

作者： nguyen Q. phan Department of Genetics Development and Cell Biology Iowa State University Ames IA 50011 USA Interdepartmental Genetics Program Iowa State University Ames IA 50011 USA Plant Sciences Institute Iowa State University Ames IA 50011 USA

Sorting nexins are conserved proteins that function in vesicular trafficking and contain a characteristic phox homology （PX） domain. Here, we characterize the ubiquitously expressed Arabidopsis thaliana sorting nexin AtSnX2b. Sub-cellular fractionation studies indicate that AtSnX2b is peripherally associated with membranes. The AtSnX2b PX domain binds to phosphatidylinositol 3-phosphate in vitro and this association is required for the localization of GFPAtSnX2b to punctate structures in vivo, identified as the trans-Golgi network, prevacuolar compartment and endosomes. Overexpression of GFP-tagged AtSnX2b produces enlarged GFP-labeled compartments that can also be labeled by the endocytic tracer FM4-64. Endocytic trafficking of FM4-64 to the vacuole is arrested in these GFP-AtSnX2b compartments, and similar FM4-64-accumulating compartments are seen upon overexpression of untagged AtSnX2b. This suggests that exit of membrane components from these enlarged or aggregated endosomes is inhibited. Vacuolar proteins containing an n-terminal propeptide, but not those with a C-terminal propeptide, are also present in these enlarged compartments. We hypothesize that AtSnX2b is involved in vesicular trafficking from endosomes to the vacuole.

关键词： phox homology Overexpression Vacuole

Inferences on the Difference of Two Proportions: A Bayesian Approach

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Open Journal of Statistics 2017年第1期7卷 1-15页

作者： Thu Pham-Gia nguyen Van Thin phan phuc Doan Department of Mathematics and Statistics Université de Moncton New Brunswick Canada Faculty of Mathematics and Computer Science Hochiminh University of Science Ho Chi Minh Vietnam

Let π=π1-π2 be the difference of two independent proportions related to two populations. We study the test H0:π≥0 against different alternatives, in the Bayesian context. The various Bayesian approaches use standard beta distributions, and are simple to derive and compute. But the more general test H0:π≥η, with η>0, requires more advanced mathematical tools to carry out the computations. These tools, which include the density of the difference of two general beta variables, are presented in the article, with numerical examples for illustrations to facilitate comprehension of results.

关键词： Proportion Convolution normal Beta Bayesian Critical Value Appell’s Function