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Designing Software to Analyze Sewing Process of Industrial Knitted Products

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Computer Systems Science & Engineering 2023年第2期44卷 1837-1852页

作者： phan Thanh Thao Nguyen Thanh Hung Pham Thi Le My Nguyen Xuan Hiep Duy-nam phan Hanoi University of Science and Technology Hanoi10000Vietnam

In the textile industry,garment manufacturing contains four major pro-cesses containing cutting,sewing,ﬁnishing,and *** is the most crucial and intricate section,dealing with a large number of varied operations.A successful sewing process needs to be optimized regarding different factors,including time,sewing equipment,and skilled *** lineﬂow is combined by a set of operations with a particular *** utmost impor-tance of all garment industry is to arrange the workstations to minimize the num-ber of employees in order to produce at the best productive rate with the most reasonable cost,shortest time,and satisfying *** most garment factories,the production lines are balanced using the empirical judgment of the line *** the whole process the data of production time at each step,labor pro-ductivity,proper choices of equipment were always needed to calculate line efﬁ*** far as the issue is concerned,there has not been an academically sewing process analyzing software providing adequate data of sewing motions and sewing time as the credible input for the line balancing *** this goal,this paper presents the results of research on optimizing academically self-built software to analyze the sewing process of knitted products applied to industrial production using Java programming language on Google *** results achieved by the software are not only to analyze sewing products and the technological sewing process,calculate the sewing time on the machine but also analyze the sewing activities of workers into manipulations,movements,and motions to calculate the preparation time for two typical knitted products,namely,Polo-Shirt and T-Shirt with the case studies at General Textile Garment Joint Stock Company Hanoi and Star Fashion Company Limited.

关键词： Sewing motion sewing time GSD MTM polo-shirt T-shirt sewing process sewing operation analyzing software

Structural Characteristics of Allomyrina Dichotoma Beetle＇s Hind Wings for Flapping Wing Micro Air Vehicle

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Journal of Bionic Engineering 2014年第2期11卷 226-235页

作者： Ngoc San Ha Quang Tri Truong Hoang Vu phan nam Seo Goo Hoon Cheol Park Biomimetics and Intelligent Microsystem Laboratory Department of Advanced Technology Fusion Division of Interdisciplinary Studies Konkuk University Seoul 143-701 Republic of Korea

In this study, we present a complete structural analysis ofAllomyrina dichotoma beetle＇s hind wings by investigating their static and dynamic characteristics. The wing was subjected to the static loading to determine its overall flexural stiffness. Dy- namic characteristics such as natural frequency, mode shape, and damping ratio of vibration modes in the operating frequency range were determined using a Bruel ＆ Kjaer fast Fourier transform analyzer along with a laser sensor. The static and dynamic characteristics of natural Allomyrina dichotoma beetle＇s hind wings were compared to those of a fabricated artificial wing. The results indicate that natural frequencies of the natural wing were significantly correlated to the wing surface area density that was defined as the wing mass divided by the hind wing surface area. Moreover, the bending behaviors of the natural wing and artificial wing were similar to that of a cantilever beam. Furthermore, the flexural stiffness of the artificial wing was a little higher than that of the natural one whereas the natural frequency of the natural wing was close to that of the artificial wing. These results provide important information for the biomimetic design of insect-scale artificial wings, with which highly ma- neuverable and efficient micro air vehicles can be designed.

关键词： beetle hind wing flexural stiffness natural frequency mode shape Micro Air Vehicles (MAVs)

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与自然相拥

建筑实践 2013年第11期 14-19页

作者：张静 Hiroyuki Oki nam phan a21studio

由越南设计公司a21studio打造的度假酒店坐落在越南的芽庄,共有9个房间,带有水疗、泥浴、矿泉浴,一间小酒吧和餐馆。建筑群依傍着一座岩石山,随着山体而起伏,这样的选址将酒店隐藏于半山坡区域,若隐若现。酒店的建造采用当地的技术和材... 详细信息

由越南设计公司a21studio打造的度假酒店坐落在越南的芽庄,共有9个房间,带有水疗、泥浴、矿泉浴,一间小酒吧和餐馆。建筑群依傍着一座岩石山,随着山体而起伏,这样的选址将酒店隐藏于半山坡区域,若隐若现。酒店的建造采用当地的技术和材料,并以当地的风俗进行管理。经过90个当地泥瓦匠、木匠和手工艺人的共同努力,花费了9个月的时间建造完成。所有的建筑材料均开采于当地,它是干叠石、木结构以及椰子叶的完美结合。酒店的房间以各种不同的角度进行建造,并以一定的距离隔开。每一间房子都有独立的入口大厅,这样不仅山顶流下来的雨水可以很容易流走,还能使空间通风凉爽,正所谓

关键词：屋顶建筑酒店

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生长与自然——越南9 spa温泉中心

设计家 2013年第6期 70-77页

作者： Hiroyuki Oki nam phan 张妍钰 a21stud1o

9 spa是一组带有温泉的酒店房屋,集泥浴、矿泉浴、小型酒吧和餐厅功能为一体。酒店建立于一座岩石山的阶梯式半山腰上,这里远离山下的人事喧嚣。项目广泛应用了本土的建筑技术和材料并汲取当地风俗,征募了90位村民担任泥瓦匠、木匠和手... 详细信息

9 spa是一组带有温泉的酒店房屋,集泥浴、矿泉浴、小型酒吧和餐厅功能为一体。酒店建立于一座岩石山的阶梯式半山腰上,这里远离山下的人事喧嚣。项目广泛应用了本土的建筑技术和材料并汲取当地风俗,征募了90位村民担任泥瓦匠、木匠和手工艺人,共用时9个月建造完成。所用石材也是从基地开采而来。9间房屋各自依照不同角度而建,并互相保持一定的距离,顺势成为每间屋子的入口门厅。这样的设计,不仅易于雨水从顶部滑落,也有助于底下的空气流通。

关键词： spa 温泉越南自然生长建筑技术空气流通阶梯式

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不用电压表的电池测试方法

电子设计技术 2001年第6期 90-90页

作者： nam phan

图1所示是一个无需电压表就可对电池进行测试的简易电路。该测试装置配有AAA、AA、C和D几种尺寸的电池架,其测试速度比用电压表快得多。测试时,只需将电池放在架上,观察电路表盘,而无需经过将电压表从盒中取出,插入探针,打开开关,用探... 详细信息

图1所示是一个无需电压表就可对电池进行测试的简易电路。该测试装置配有AAA、AA、C和D几种尺寸的电池架,其测试速度比用电压表快得多。测试时,只需将电池放在架上,观察电路表盘,而无需经过将电压表从盒中取出,插入探针,打开开关,用探针头测量电池两极的繁琐过程。

关键词：电压表伏特计电工仪表电池测试输入电压

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;Pnam 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

Suzuki Reaction of Aryl Bromides Using a Phosphine-Free Magnetic Nanoparticle-Supported Palladium Catalyst

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催化学报 2011年第11期32卷 1667-1676页

作者： Nghia T. BUI Trung B. DANG Ha V. LE nam T. S. phan Department of Chemical Engineering HCMC University of Technology VNU-HCM 268 Ly Thuong Kiet Distriet 10 Ho Chi Minh City Viet Nam

A palladium catalyst immobilized on superparaganetic nanoparticles was prepared with a palladium loading of 0.30 mmol/g. The catalyst was characterized using X-ray diffraction, scanning electron microscopy, transmission electron microscopy, vibrating sample magnetometry, thermogravimetric analysis, Fourier transform infrared, atomic absorption spectrophotometry, and nitrogen adsorption. The immobilized palladium catalyst was an efficient catalyst without added phosphine ligands for the Suzuki cross-coupling reaction of several aryl bromides with phenylboronic acid. The recovery of catalyst was simply by magnetic decantation in the presence of a magnet. The immobilized palladium catalyst can be reused many times without significant degradation in catalytic activity. No leaching of active palladium species into the reaction solution was detected.

关键词： superparamagnetic nanoparticle Suzuki reaction palladium aryl bromide

Determination of fuel burnup distribution of a research reactor based on measurements at subcritical conditions

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Nuclear Science and Techniques 2018年第12期29卷 30-38页

作者： Quang Binh Do Hoai-nam Tran Quang Huy Ngo Giang T. T. phan Ho Chi Minh City University of Technology and Education 1 Vo Van Ngan Thu Duc HCMC Vietnam Institute of Fundamental and Applied Sciences Duy Tan University Ho Chi Minh city Vietnam

This paper presents the determination of the fuel burnup distribution of the Dalat nuclear research reactor(DNRR) using a method of measurements at subcritical conditions. The method is based on the assumption of linear dependence of the reactivity on the burnup of fuel bundles and the measurements at subcritical *** measurements were taken for seven selected fuel bundles in two different measuring sequences. The measured burnup values have also been compared with the calculations for verifying the method and the measurement procedure. The results obtained with the three detectors have a good agreement with each other with a discrepancy less than 1.0%. The errors of the measured burnup values are within 6%. Comparison between the calculated and measured burnup values shows that the discrepancy of the C/E ratio is within 9% compared to unity. The results indicate that the method of measurements at subcritical conditions could be well applied to determine the relative burnup distribution of the DNRR.

关键词：研究反应堆燃料分发测量过程验证方法方法论价值计算

Advances in the light field displays based on integral imaging and holographic techniques(Invited Paper)

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Chinese Optics Letters 2014年第6期12卷 16-20页

作者： nam Kim Md. Ashraful Alam Le Thanh Bang Anh-Hoang phan Mei-Lan Piao Munkh-Uchral Erdenebat School of Electrical and Computer Engineering Chungbuk National University410 Sungbong-ro Heungdeok-gu Cheongju Chungbuk 361-763 Korea

Light field displays comprise three-dimensional （3D） visual information presentation devices capable of providing realistic and full parallax autostereoscopic images. In this letter, the recent advances in the light field displays based on integral imaging （II） and holographic techniques are presented. Several advanced approaches to demonstrate the light field displays including viewing angle enhancement techniques of the II display, a fast hologram generation method using graphics processing unit （GPU） and multiple WRPs, and a holographic microscopy to display the living cells are reported. These methods improve some important constraints of the light field displays and add new features.

关键词： Advances in the light field displays based on integral imaging and holographic techniques II GPU