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Influence of operational parameters on the photocatalytic performance of DE-NOx process Via MIL-101(Fe)

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Progress in Natural Science:Materials International 2018年第6期28卷 689-695页

作者： Hoang phuc nguyen Tae Ho Kim Soo Wohn Lee Research Center for Eco Multi-Functional Nano Materials Sun Moon University Department of Environmental & Bio-Chemical Engineering Sun Moon University

Metal organic framework(MOF)has been paid great attention as a potential candidate for various applications in the field of energy and environment,particularly in air *** various MOFs,MIL-101(Fe) represents an interesting material possessing many advantages,including the ease of fabrication,high porosity,high specific surface area with open metal sites,making it a promising material in the field of harmful gas *** these advantages,MIL-101(Fe) was synthesized by facile microwave-solvothermal method and applied as a photocatalyst for the degradation of *** de-NOxefficiency of the synthesized powder was evaluated with respect to various operating parameters including substrates,sample doses,light spectrum and light intensity,initial NO concentration,and relative *** results have shown that the efficiency of NOxphotocatalytic degradation reaches to 77%under solar irradiation via 0.1 g of MIL-101(Fe) with optimum condition of reaction,(alumina substrate,350 ppb of initial NO concentration,40–50%of relative humidity).Then this work provides the optimum condition for the efficient photocatalytic degradation of NOx.

关键词： Metal-organic framework MIL-101 Gaseous pollutant NOx emission Photocatalyst

Context-specific chromatin remodeling activity of mSWI/SNF complexes depends on the epigenetic landscape

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Signal Transduction and Targeted Therapy 2021年第11期6卷 3159-3160页

作者： Godwin Sokpor Huu phuc nguyen Tran Tuoc Department of Human Genetics Ruhr University of BochumBochumGermany

A recent article published in Science reveals how the mammalian SWI/SNF (mSWI/SNF) complexes utilize epigenetic cues in the chromatin landscape for differential chromatin remodeling.1 The heteromultimeric ATP-dependent SWI/SNF complexes can alter chromatin architecture leading to gene expression modulation (Fig. 1). Combinatorial and modular assembly of mSWI/SNF complex subunits2 partly underscore their heterogeneity and tissue-specific downstream effects. Given their implication in numerous diseases, including cancers3 and neurodevelopmental disorders,4 the mSWI/SNF or BAF complexes have attracted interest in elucidating their precise action to lend therapeutic ideas. The work of Mashtalir et al.1 has deepened our understanding by decoding the signals which instruct the assembly, localization, and activity of mSWI/SNF complexes. They provide experimental confirmation that the mSWI/SNF complexes depend on single and/or summative histone/nucleosome signatures and subunit modules to determine their activity (Fig. 1).

关键词： complexes utilize specific

Scheduling Optimization Modelling:A Case Study of a Woven Label Manufacturing Company

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Computer Systems Science & Engineering 2021年第8期38卷 239-249页

作者： Chia-Nan Wang Zhao-Hong Cheng nguyen Ky phuc Phan Van Thanh nguyen Department of Industrial Engineering and Management National Kaohsiung University of Science and TechnologyKaohsiung80778TaiwanChina Department of International Business National Kaohsiung University of Science and TechnologyKaohsiung80778TaiwanChina Faculty of Industrial Engineering and Management International UniversityHo Chi Minh City70000Vietnam Faculty of Commerce Van Lang UniversityHo Chi Minh City70000Vietnam

Production scheduling involves all activities of building production schedules,including coordinating and assigning activities to each person,group of people,or machine and arranging work orders in each *** scheduling must solve all problems such as minimizing customer wait time,storage costs,and production time;and effectively using the enterprise’s human *** paper studies the application of flexible job shop modelling on scheduling a woven labelling *** labelling process includes several steps which are handled in different *** workstation is also comprised of several identical parallel *** this study,job splitting is allowed so that the power of work stations can be utilized *** final objective is to minimize the total completion time of all *** results show a significant improvement since the new planning may save more than 60%of lead time compared to the current *** contribution of this research is to propose a flexible job shop model for scheduling a woven labelling *** proposed approach can also be applied to support complex production scheduling processes under fuzzy environments in different industries.A practical case study demonstrates the effectiveness of the proposed model.

关键词： Flexible job shop scheduling Woven labelling Garment industry Optimization Production scheduling

Identifying the impediments and enablers of ecohealth for a case study on health and environmental sanitation in Hà Nam, Vietnam

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Infectious Diseases of Poverty 2014年第1期3卷 325-337页

作者： Vi nguyen Hung nguyen-Viet phuc Pham-Duc Craig Stephen Scott A McEwen Department of Population Medicine Ontario Veterinary CollegeUniversity of Guelph2509 Stewart Building(#45)Guelph N1G 2W1ONCanada Public Health Risk Sciences Division Laboratory for Foodborne ZoonosesPublic Health Agency of Canada160 Research LaneUnit 206GuelphON N1G 5B2Canada Center for Public Health and Ecosystem Research Hanoi School of Public Health(HSPH)138 Giang Vo StreetHanoiVietnam Swiss Tropical and Public Health Institute(Swiss TPH) and International Livestock Research Institute(ILRI)Socinstrasse 57CH-4002 BaselSwitzerland and HanoiVietnam Swiss Federal Institute of Aquatic Science and Technology(ESWAG) Sandec–Department of Water and Sanitation in Developing CountriesP.O.BoxCH-8600DübendorfSwitzerland Department of Ecosystem and Public Health Faculty of Veterinary MedicineUniversity of CalgaryTRW 2D263280 Hospital DriveNWCalgaryAlberta T2N 4Z6Canada Centre for Coastal Health 900 Fifth StreetNanaimoBritish Columbia V9R 5S5Canada

Background:To date,research has shown an increasing use of the term“ecohealth”in literature,but few researchers have explicitly described how it has been *** investigated a project on health and environmental sanitation(the conceptual framework of which included the pillars of ecohealth)to identify the impediments and enablers of ecohealth and investigate how it can move from concept to ***:A case study approach was *** interview questions were centred on the nature of interactions and the sharing of information between ***:The analysis identified nine impediments and 15 enablers of *** themes relating to impediments,in particular-integration is not clear,don’t understand,and limited participation-related more directly to the challenges in applying the ecohealth pillars of transdisciplinarity and *** themes relating to enablers-awareness and understanding,capacity development,and interactions-facilitated usage of the research *** extracting information on the environmental,social,economic,and health aspects of environmental sanitation,we found that the issue spanned multiple scales and ***:The challenge of how to integrate these aspects should be considered at the design stage and throughout the research *** recommend that ecohealth research teams include a self-investigation of their processes in order to facilitate a comparison of moving from concept to practice,which may offer insights into how to evaluate the process.

关键词： Ecohealth Evaluation Health Sanitation Case study Vietnam

Motion visualization and estimation for flapping wing systems

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Acta Mechanica Sinica 2017年第2期33卷 327-340页

作者： Tzu-Sheng Shane Hsu Timothy Fitzgerald Vincent phuc nguyen Trisha Patel Balakumar Balachandran Department of Mechanical Engineering University of Maryland College Park MD 20742 USA

Studies of fluid-structure interactions associated with flexible structures such as flapping wings require the capture and quantification of large motions of bodies that may be opaque. As a case study, motion capture of a free flying Manduca sexta, also known as hawkmoth, is considered by using three synchronized high-speed cameras. A solid finite element (FE) representation is used as a reference body and successive snapshots in time of the displacement fields are reconstructed via an optimization procedure. One of the original aspects of this work is the formulation of an objective function and the use of shadow matching and strain-energy regularization. With this objective function, the authors penalize the projection differences between silhouettes of the captured images and the FE representation of the deformed body. The process and procedures undertaken to go from high-speed videography to motion estimation are discussed, and snapshots of representative results are presented. Finally, the captured free-flight motion is also characterized and quantified.

关键词： Insect flight Deformable body High-speed videography Motion estimation

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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

Mean-field description of heavy-ion scattering at low energies and fusion

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Nuclear Science and Techniques 2018年第12期29卷 102-111页

作者： Dao T.Khoa Le Hoang Chien Do Cong Cuong nguyen Hoang phuc Institute for Nuclear Science and Technology VINATOM Department of Nuclear Physics and Nuclear Engineering Faculty of Physics and Engineering Physics University of Science VNU-HCM

The nuclear mean-field potential built up during the ^(12)C+^(12)C and ^(16)O+^(16)O collisions at low energies relevant for the carbon-and oxygen-burning processes is constructed within the double-folding model(DFM) using the realistic ground-state densities of^(12)C and^(16)O, and CDM3Yn density-dependent nucleon–nucleon(NN) interaction. The rearrangement term, indicated by the Hugenholtz–van Hove theorem for the single-particle energy in nuclear matter, is properly considered in the DFM calculation. To validate the use of the density-dependent NN interaction at low energies, an adiabatic approximation was suggested for the dinuclear overlap density. The reliability of the nucleus–nucleus potential predicted through this low-energy version of the DFM was tested in the optical model(OM) analysis of the elastic^(12)C+^(12)C and ^(16)O+^(16)O scattering data at energies below 10 MeV/*** OM results provide a consistently good description of the elastic angular distributions and 90 excitation function. The dinuclear mean-field potential predicted by the DFM is further used to determine the astrophysical S factor of the ^(12)C+^(12)C and ^(16)O+^(16)O fusions in the barrier penetration model. Without any adjustment of the potential strength, our results reproduce the non-resonant behavior of the S factor of the ^(12)C+^(12)C and ^(16)O+^(16)O fusions very well over a wide range of energies.

关键词：精力熔化散布重离子状态密度密度依赖相互作用天体物理学

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Face Mask Recognition for Covid-19 Prevention

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Computers, Materials & Continua 2022年第11期73卷 3251-3262页

作者： Trong Hieu Luu Phan nguyen Ky phuc Zhiqiu Yu Duy Dung Pham Huu Trong Cao College of Engineering Can Tho UniversityCan Tho city910900Viet Nam International University-Vietnam National University Vietnam National UniversityHoChiMinh City70000Vietnam Department of Industrial Management National Taiwan University of Science and TechnologyTaipei10607Taiwan

In recent years,the COVID-19 pandemic has negatively impacted all aspects of social *** to ease in the infected method,i.e.,through small liquid particles from the mouth or the nose when people cough,sneeze,speak,sing,or breathe,the virus can quickly spread and create severe problems for people’s *** to some research as well as World Health Organization(WHO)recommendation,one of the most economical and effective methods to prevent the spread of the pandemic is to ask people to wear the face mask in the public space.A face mask will help prevent the droplet and aerosol from person to person to reduce the risk of virus *** simple method can reduce up to 95%of the spread of the ***,this solution depends heavily on social consciousness,which is sometimes *** order to improve the effectiveness of wearing face masks in public spaces,this research proposes an approach for detecting and warning a person who does not wear or misuse the face *** approach uses the deep learning technique that relies on GoogleNet,AlexNet,and VGG16 *** results are synthesized by an ensemble method,i.e.,the bagging *** the experimental results,the approach represents a more than 95%accuracy of face mask recognition.

关键词： Face mask detection deep learning AlexNet GoogLeNet VGG16 ensemble method

System Dynamics Forecasting on Taiwan Power Supply Chain

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Computer Systems Science & Engineering 2022年第6期41卷 1191-1205页

作者： Zhiqiu Yu Shuo-Yan Chou Phan nguyen Ky phuc Tiffany Hui-Kuang Yu Department of Industrial Management National Taiwan University of Science and TechnologyTaipei10607Taiwan Industrial Engineering and Management Department International UniversityHo Chi Minh City70000Vietnam Department of Public Finance Feng Chia UniversityTaichungTaiwan

This research aims to study the sustainability of Taiwan power supplychain based on system dynamics forecasting. The paper tries to investigate electricity shortage effects not only on the industrial side, but also from the standpointof society. In our model, different forecasting methods such as linear regression,time series analysis, and gray forecasting are also considered to predict the parameters. Further tests such as the structure, dimension, historical fit, and sensitivityof the model are also conducted in this paper. Through analysis forecasting result,we believe that the demand for electricity in Taiwan will continue to increase to acertain level for a period of time in the future. This phenomenon is closely relatedto Taiwan’s economic development, especially industrial development. We alsopoint out that electricity prices in Taiwan do not match with high industrialdemand, and that prices are still slightly low. Finally, the future growth trend ofTaiwan’s electricity demand has not changed, and ensuring adequate supply tomeet electricity demand to prevent potential power shortages will pose somedifficulty.

关键词： System dynamics taiwan power supply chain electricity demand