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Journal of Materials Science & Technology 2017年第8期33卷 869-873页

作者： Yanbo Yao phong T.Hoang Tao Liu Shanghai key Lab of Lightweight Composite Donghua University High-Performance Materials Institute Florida State University

Gold nanorods（AuNRs） are excellent photothermal agents to enable a variety of laser stimulated functional polymers. One key issue is to maximize the photothermal conversion efficiency of Au NRs. In this study, the light responsive AuNR/shape memory polymer（SMP） nanocomposites with inclusion of AuNRs of varied aspect ratios were prepared, characterized, and their laser irradiation induced bending behavior was investigated. The critical role of the on-resonance irradiation condition—a close match of the longitudinal plasmon resonance of the AuNR with the wavelength of the incident laser—has been *** allows for maximizing the photothermal conversion efficiency of AuNRs to result in the rapid and large deformation of the AuNR/SMP nanocomposites. For the Au NR/SMP nanocomposite films prepared under similar processing conditions, the close-to-resonance irradiation at a 1.27 W/cm^2 was able to induce a bending rate of 27？/s and maximum bending angle of 90.4？. In contrast, the off-resonance irradiation at a 1.89 W/cm^2 resulted in negligible response.

关键词： Shape memory effect Gold nanoparticle Laser heating

Energy reduction of a submerged membrane bioreactor using a polytetrafluoroethylene （PTFE） hollow-fiber membrane

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Frontiers of Environmental Science & Engineering 2018年第3期12卷 45-54页

作者： Taro Miyoshi Thanh phong Nguyen Terumi Tsumuraya Hiromu Tanaka Hiroki Itokawa Toshikazu Hashimoto Maezawa Industries Inc. 5-11 Naka-cho Kawaguchi City Saitama 332-8556 Japan Sumitomo Electric Industries LTD. 1-950 Asashironishi Kumatori-cho Sennan-gun Osaka 590-0458 Japan Japan Sewage Works Agency 2-31-27 Yushima Bunkyo City Tokyo 113-0034 Japan

In this study, we modified a polytetrafluoroethylene （PTFE） hollow-fiber membrane element used for submerged membrane bioreactors （MBRs） to reduce the energy consumption during MBR processes. The high mechanical strength of the PTFE membrane made it possible to increase the effective length of the membrane fiber from 2 to 3 m. In addition, the packing density was increased by 20% by optimizing the membrane element configuration. These modifications improve the efficiency of membrane cleaning associated with aeration. The target of specific energy consumption was less than 0.4 kWh·m^-3 in this study. The continuous operation of a pilot MBR treating real municipal wastewater revealed that the MBR utilizing the modified membrane element can be stably operated under a specific air demand per membrane surface area （SADm） of 0.13 m^3·m^-2. hr I when the daily- averaged membrane fluxes for the constant flow rate and flow rate fluctuating modes of operation were set to 0,6 and 0.5m^3·m^-2·d^-1 respectively. The specific energy consumption under these operating conditions was estimated to be less than 0.37 kWh.m^-3. These results strongly suggest that operating an MBR equipped with the modified membrane element with a specific energy consumption of less than 0.4 kWh·m^-3 is highly possible.

关键词： Energy-saving Membrane bioreactor Polytetrafluoroethylene (PTFE) membrane Hollow fiber Power consumption

New urban map of Eurasia using MODIS and multi-source geospatial data

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Geo-Spatial Information Science 2017年第1期20卷 29-38页

作者： Bayan Alsaaideh Ryutaro Tateishi Dong Xuan phong Nguyen Thanh Hoan Ahmad Al-Hanbali Bai Xiulian Center for Environmental Remote Sensing(CEReS) Chiba UniversityChibaJapan COPRONA Inc.International Consulting Company Vung TauVietnam Institute of Geography Vietnamese Academy of Science and Technology(VAST)HanoiVietnam Geosphere environmental technology corp. tokyoJapan

Urban areas are of paramount significance to both the individuals and communities at local and regional ***,the rapid growth of urban areas exerts effects on climate,biodiversity,hydrology,and natural ecosystems ***,regular and up-to-date information related to urban extent is necessary to monitor the impacts of urban areas at local,regional,and potentially global *** study presents a new urban map of Eurasia at 500 m resolution using multi-source geospatial data,including Moderate Resolution Imaging Spectroradiometer(MODIS)data of 2013,population density of 2012,the Defense Meteorological Satellite Program’s Operational Linescan System(DMSP-OLS)nighttime lights of 2012,and constructed Impervious Surface Area(ISA)data of *** Eurasian urban map was created using the threshold method for these data,combined with references of fine resolution Landsat and Google Earth *** resultant map was compared with nine global urban maps and was validated using random sampling *** of the accuracy assessment showed high overall accuracy of the new urban map of 94%.This urban map is one product of the 20 land cover classes of the next version of Global Land Cover by National Mapping Organizations.

关键词： Urban area mapping population density MODIS data integration accuracy assessment eurasia

Cr/nanodiamond composite plating with cobalt cation additive

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中国有色金属学会会刊：英文版 2009年第4期19卷 975-978页

作者： Viet-Hue NGUYEN Thi-Nam HOANG Ngoc-phong NGUYEN Sik-Chol kWON Man kIM Joo-Yul LEE Institute of Materials Science korea Institute of Materials Science

The effect of cationic additive on Cr/nanodiamond plating was *** plating was performed in Sargent *** of deposit was observed by scanning electron microscope(SEM);microhardness by hardness tester;wear rate by tribometer;amount of diamond in deposit by combustion method and passivity by potentiodynamic *** results show that in the presence of cobalt cation,the amount of nanodiamond particle in the deposit is *** increasing diamond particle amount,the metallurgical,mechanical and electrochemical properties of Cr/nanodiamond deposit are ***,this improvement seems to be *** the presence of 10 g/L of nanodiamond powder and 2.5 g/L of cobalt cation in the bath,the amount of diamond particle in deposit is increased by 4 times;and wear rate of Cr-Co/nanodiamond deposit is decreased by 2-3 times as compared with pure Cr/*** passive current of Cr-Co/nanodiamond composite deposit is decreased from 18 to 8 μ*** morphology of Cr/nanodiamond is smooth remarkably in the presence of cobalt cation.

关键词：纳米金刚石粉复合镀层钴离子镀铬添加剂金刚石颗粒扫描电子显微镜形态观察

Metabolic bariatric surgery and type 2 diabetes mellitus:an endocrinologist's perspective

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The Journal of Biomedical Research 2015年第2期29卷 105-111页

作者： Sonali Ganguly Hong Chang Tan phong Ching Lee kwang Wei Tham The Obesity & Metabolic Unit Department of EndocrinologyLIFE CentreSingapore General Hospital

Traditional treatment of T2 DM consisting of modification of diet,an exercise regimen,and pharmacotherapy has problems of poor lifestyle modifications and fail tend of treatment over time,now bariatric surgery is recommended for treatment of obese patients with T2 DM because its great improvements on weight loss and *** this article,effects of bariatric surgery on diabetes and diabetes-related complications are reviewed.

关键词： type 2 diabetes mellitus metabolic bariatric surgery diabetes remission

不同含水状态下基床级配碎石填料变形特性研究

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岩土力学 2016年第5期37卷 1365-1372页

作者：刘宝 PHAM Duc phong 苏谦桂波西南交通大学土木工程学院四川成都610031 黎贵敦技术大学特种工程学院越南河内100803 西南交通大学高速铁路线路工程教育部重点实验室四川成都610031

基床级配碎石在外界雨水侵入时含水状态发生改变对其变形特性不利,从而影响行车安全,但目前研究含水率对基床级配碎石变形特性的成果甚少,为进一步揭示不同含水状态下基床级配碎石的变形特性,对不同含水率的级配碎石试样开展了多组大型... 详细信息

基床级配碎石在外界雨水侵入时含水状态发生改变对其变形特性不利,从而影响行车安全,但目前研究含水率对基床级配碎石变形特性的成果甚少,为进一步揭示不同含水状态下基床级配碎石的变形特性,对不同含水率的级配碎石试样开展了多组大型静动三轴试验。首先,通过静三轴试验探讨了含水率对级配碎石应力-应变关系和强度特性的影响;然后,基于动三轴试验,重点研究了含水率、动应力水平对累积应变随荷载作用次数发展规律的影响;在此基础上,建立了综合考虑含水率、荷载作用次数、动应力水平相互耦合作用的累积应变预测模型。基于含水率为5.0%和7.3%的累积应变试验结果,确定了模型中的待定参数,通过含水率为8.6%的试验结果验证了其正确性和合理性,此模型不仅克服了不同动应力水平下累积应变计算模型的分散性,而且能够直观地体现出含水率对累积应变的影响。

关键词：级配碎石大型三轴试验含水率变形特性计算模型

An Optimal Deep Learning Based Computer-Aided Diagnosis System for Diabetic Retinopathy

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Computers, Materials & Continua 2021年第3期66卷 2815-2830页

作者： phong Thanh Nguyen Vy Dang Bich Huynh khoa Dang Vo Phuong Thanh Phan Eunmok Yang Gyanendra Prasad Joshi Department of Project Management Ho Chi Minh City Open UniversityHo Chi Minh City7000000Vietnam Department of Learning Material Ho Chi Minh City Open UniversityHo Chi Minh City7000000Vietnam Department of Convergence Science Kongju National UniversityGongju32588South Korea Department of Computer Science and Engineering Sejong UniversitySeoul05006South Korea

Diabetic Retinopathy(DR)is a significant blinding disease that poses serious threat to human vision *** and severity grading of DR are difficult processes to ***,it depends on ophthalmoscopically-visible symptoms of growing severity,which is then ranked in a stepwise scale from no retinopathy to various levels of DR *** paper presents an ensemble of Orthogonal Learning Particle Swarm Optimization(OPSO)algorithm-based Convolutional Neural Network(CNN)Model EOPSO-CNN in order to perform DR detection and *** proposed EOPSO-CNN model involves three main processes such as preprocessing,feature extraction,and *** proposed model initially involves preprocessing stage which removes the presence of noise in the input ***,the watershed algorithm is applied to segment the preprocessed *** by,feature extraction takes place by leveraging EOPSO-CNN ***,the extracted feature vectors are provided to a Decision Tree(DT)classifier to classify the DR *** study experiments were carried out using Messidor DR Dataset and the results showed an extraordinary performance by the proposed method over compared methods in a considerable *** simulation outcome offered the maximum classification with accuracy,sensitivity,and specificity values being 98.47%,96.43%,and 99.02%respectively.

关键词： Diabetic retinopathy convolutional neural network classification image processing computer-aided diagnosis

Deep Learning Based Optimal Multimodal Fusion Framework for Intrusion Detection Systems for Healthcare Data

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Computers, Materials & Continua 2021年第3期66卷 2555-2571页

作者： phong Thanh Nguyen Vy Dang Bich Huynh khoa Dang Vo Phuong Thanh Phan Mohamed Elhoseny Dac-Nhuong Le Department of Project Management Ho Chi Minh City Open UniversityHo Chi Minh City700000Vietnam Department of Learning Material Ho Chi Minh City Open UniversityHo Chi Minh City700000Vietnam Faculty of Computers and Information Mansoura UniversityDakahlia Governorate35516Egypt Institute of Research and Development Duy Tan UniversityDanang550000Vietnam Faculty of Information Technology Duy Tan UniversityDanang550000Vietnam

Data fusion is a multidisciplinary research area that involves different *** is used to attain minimum detection error probability and maximum reliability with the help of data retrieved from multiple healthcare *** generation of huge quantity of data from medical devices resulted in the formation of big data during which data fusion techniques become *** medical data is a crucial issue of exponentially-pacing computing world and can be achieved by Intrusion Detection Systems(IDS).In this regard,since singularmodality is not adequate to attain high detection rate,there is a need exists to merge diverse techniques using decision-based multimodal fusion *** this view,this research article presents a new multimodal fusion-based IDS to secure the healthcare data using *** proposed model involves decision-based fusion model which has different processes such as initialization,pre-processing,Feature Selection(FS)and multimodal classification for effective detection of *** FS process,a chaotic Butterfly Optimization(BO)algorithmcalled CBOA is *** the classic BO algorithm offers effective exploration,it fails in achieving faster *** order to overcome this,i.e.,to improve the convergence rate,this research work modifies the required parameters of BO algorithm using chaos ***,to detect intrusions,multimodal classifier is applied by incorporating three Deep Learning(DL)-based classification ***,the concepts like Hadoop MapReduce and Spark were also utilized in this study to achieve faster computation of big data in parallel computation *** validate the outcome of the presented model,a series of experimentations was performed using the benchmark NSLkDDCup99 Dataset *** proposed model demonstrated its effective results on the applied dataset by offering the maximum accuracy of 99.21%,precision of 98.93%and detection rate of 99.59%.The results assured the betterm

关键词： Big data data fusion deep learning intrusion detection bio-inspired algorithm spark

不同土壤调理剂对轻度镉污染稻田修复效果比较

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中国土壤与肥料 2022年第2期 72-79页

作者：高琳琳 phong oudao Daove 鲍广灵李丁马友华李江遐安徽农业大学资源与环境学院安徽合肥230036 芜湖格丰环保科技研究院有限公司安徽合肥230088 北京博瑞环境工程有限公司北京100176

为探究轻度镉(Cd)污染稻田的治理修复方法,选用天象土壤调理剂(TX)、秸秆炭材料(JGT)和3种森美思纳米材料(SAX1、PX4、WH4P),在安徽铜陵矿区附近Cd轻度污染水稻田开展了连续两年的田间小区试验,研究了5种土壤调理剂对Cd轻度污染稻田当... 详细信息

为探究轻度镉(Cd)污染稻田的治理修复方法,选用天象土壤调理剂(TX)、秸秆炭材料(JGT)和3种森美思纳米材料(SAX1、PX4、WH4P),在安徽铜陵矿区附近Cd轻度污染水稻田开展了连续两年的田间小区试验,研究了5种土壤调理剂对Cd轻度污染稻田当年与次年土壤有效态Cd含量、土壤pH、水稻产量和Cd含量的影响。结果表明,当年施用不同土壤调理剂后,土壤pH值提高了0.13~0.69个单位,Cd轻度污染稻田有效态Cd含量显著下降,下降幅度为0.82%~6.39%,其中PX4处理下降幅度最大;与对照相比,水稻籽粒Cd含量降低,镇稻11下降17.77%~57.65%,镇稻18下降11.76%~53.59%,两个品种均是PX4和SAX1处理降低籽粒Cd含量效果明显;施用SAX1和JGT土壤调理剂,两个品种的水稻均增产,镇稻11增产率分别为8.73%和14.71%,镇稻18增产率分别为8.09%和4.53%。次年施用土壤调理剂后,土壤p H提高了0.11~0.36个单位,土壤有效态Cd含量下降幅度为5.50%~21.60%,WH4P和SAX1处理下降幅度最大;水稻籽粒Cd含量降低,与对照相比,镇稻11下降15.31%~41.19%,镇稻18下降17.53%~38.73%,两个品种均是WH4P处理降幅最大;WH4P处理下两个品种的水稻均减产,镇稻11减产1.94%,镇稻18减产0.24%。综合来看,PX4和SAX1土壤调理剂当年施用对当地轻度Cd污染稻田的修复效果最好,WH4P土壤调理剂次年施用效果最好。

关键词：土壤调理剂镉有效态水稻

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P波在饱和粗颗粒夹层界面上的反射和透射

西南交通大学学报 2017年第2期52卷 280-287页

作者：刘宝苏谦赵文辉刘亭 PHAM Duc phong 周珩西南交通大学土木工程学院四川成都610031 西南交通大学高速铁路线路工程教育部重点实验室四川成都610031 Le Quy Don技术大学特种工程学院越南河内100803

为研究应力波在埋入式桩板路基饱和粗颗粒夹层结构界面的反射和透射效应,以平面P波为例,结合埋入式桩板路基的结构特点,基于Biot饱和多孔介质波动理论和弹性波动理论,建立了考虑饱和粗颗粒夹层反射波叠加影响的弹性介质-饱和粗颗粒夹层... 详细信息

为研究应力波在埋入式桩板路基饱和粗颗粒夹层结构界面的反射和透射效应,以平面P波为例,结合埋入式桩板路基的结构特点,基于Biot饱和多孔介质波动理论和弹性波动理论,建立了考虑饱和粗颗粒夹层反射波叠加影响的弹性介质-饱和粗颗粒夹层-弹性介质界面效应模型;采用引入势函数的方法推导了应力波在饱和粗颗粒夹层交界面上的反射和透射系数;通过数值算例研究了不同因素对反射和透射系数的影响规律.研究结果表明:夹层厚度、孔隙率、剪切模量改变了能量在交界面上的分配关系,且表现出周期性谐振特性,孔隙率由0.2变化到0.4时,反射系数增大了约25%;剪切波的传播引起反射系数在剪切波谐振频率处震荡且受阻尼作用,渗透率及透水条件对粗颗粒夹层的反射系数影响明显.

关键词：埋人式桩板路基饱和粗赚夹层 Biot理论应力波反射和透射