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Journal of Agricultural Science and Technology(A) 2017年第B10期7卷 85-92页

作者： Tran vinh Phuong Nguyen Van Khanh Pham thi Hai Yen Vo Dieu Nguyen Van Huy Institute of Biotechnology Hue UniversityPhu ThuongPhu VangThua Thien Hue 530000Vietnam Faculty of Fisheries University of Agriculture and ForestryHue University102 Phung Hung StreetHue 530000Vietnam

Adult rice field eels with 125.52±27.99 g body weight corresponding to 44.79±5.93 cm in length were maturity cultured in a 5 m^2 cement tank without mud for three months with density 30 eels/m^*** broodstocks were fed with three types of food including:sea fish(T1),commercial pellet food(T2)and mixed food—50%sea fish and 50%commercial pellet food(T3).Result showed that the maximum gonadosomatic index(GSI)of female eels fed by sea fish(2.89%±0.67%)was higher than both commercial pellet food(1.62%±0.62%)and mixed food(2.03%±0.82%)(Ple,GSI of male eels was 1.27%±0.31%,0.68%±0.23%and 1.14%±0.41%(P>0.05).Maturity rate of female fed by sea fish(88.91%±9.64%)was higher than commercial pellet food(61.12%±9.64%)(Ple eels was rather low and there was not significantly different among treatments(P>0.05).*** eels were induced for spawning with two kinds of hormones,including T1:human chorionic ganadotropin(HCG)at 1,500 IU/kg,T2:luteinzing hormone-releasing hormone(LHRH-a)at 150μg/kg and domperidon 10 mg/kg,and T3:control without *** results of spawning induction methods showed that the reproduction rate of female eels induced by LHRH-a and HCG hormones were higher than that by natural reproduction method(Plength of newly hatched eels was 1.72±0.19 cm.

关键词： Food maturity culture ovulation spawing induction method rice field eel

Engine performance and combustion characteristics of a direct injection compression ignition engine fueled waste cooking oil synthetic diesel

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International Journal of Coal Science & Technology 2020年第3期7卷 560-570页

作者： Thanh Viet Nguyen Khanh Duc Nguyen Nang Xuan Ho vinh Duy Nguyen Department of Internal Combustion Engine School of Transportation EngineeringHanoi University of Science and TechnologyHanoiViet Nam Faculty of Vehicle and Energy Engineering Phenikaa UniversityYen NghiaHa-Dong DistrictHanoiViet Nam

Biodiesels produced from various feedstocks have been considered as alternative fuels used in internal combustion engines without major *** research focuses on producing biodiesel from waste cooking oil(WCOSD)by the catalytic cracking method using MgO as the catalyst and comparing the engine operating characteristics of the test engine when using WCOSD and traditional diesel(CD)as test *** a result,the brake power of the test engine fueled WCOSD,and traditional diesel is ***,the engine fuel consumption in the case of using WCOSD is slight increases in some operating ***,the nitrogen oxides emissions of the test engine fueled WCOSD are higher than those of CD at all tested *** trend is opposite for hydrocarbon emission as the HC emission of the engine fueled by WCOSD reduces 26.3%on *** smoke emission of the test engine in case of using WCOSD is lower 17%on average than that of ***,the carbon monoxide emissions are lower at the low and medium loads and higher at the full *** results show that the new biodiesel has the same characteristics as those of commercial biodiesel and can be used as fuel for diesel engines.

关键词： Feedstock Waste cooking oil Engine characteristics Exhaust missions Ignition timing Fuel consumption

Investigation of the hydro-mechanical behaviour of fouled ballast

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2013年第4期14卷 244-255页

作者： Yu-jun CUI Trong vinh DUONG Anh Minh TANG Jean-Claude DUPLA Nicolas CALON Alain ROBINET Laboratoire Navier/CERMES Ecole des Ponts ParisTechBlaise PascalCité DescartesChamps-sur-Marne 77455 Marne-la-Vallée Cedex-France French National Railway Company 93574La Plaine St DenisFrance

In this study,a fouled ballast taken from the site of Sénissiat,France,was *** the hydraulic behaviour,a large-scale cell was developed allowing drainage and evaporation tests to be carried out with monitoring of both suction and volumetric water content at various positions of the *** was observed that the hydraulic conductivity of fouled ballast is decreasing with suction increase,as for common unsaturated *** effect of fines content was found to be *** the mechanical behaviour,both monotonic and cyclic triaxial tests were carried out using a large-scale triaxial *** water contents were *** results were interpreted in terms of shear strength and permanent axial *** appeared that the water content is an important factor to be accounted for since any increase of water content or degree of saturation significantly decreases the shear strength and increases the permanent *** modelling has been attempted based on the experimental *** model in its current state is capable of describing the effects of stress level,cycle number and water content.

关键词： Fouled ballast Degree of saturation Hydraulic behaviour Mechanical behaviour Fines content Constitutive modelling

Molybdate Doped Polypyrrole： Preparation, Properties and Application

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材料科学与工程（中英文A版） 2013年第5期3卷 321-328页

作者： Ha Manh Hung le Minh Duc Tran vinh Dieu Vu Quoc Trung Faculty of Chemistry Hanoi National University of Education Cau Giay District Hanoi Vietnam Faculty of General Education Hanoi University of Mining and Geology Dong Ngac Tu Liem Hanoi Vietnam Faculty of Chemical Engineering Danang University oJ l"echnology Lien Chieu District Danang Vietnam Centre of Polymer Research Hanoi University of Science and Technology Hai Ba Trung District Hanoi Vietnam

Effectiveness of bee venom acupuncture for patients suffering from periarthritis humeroscapularis

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Journal of Traditional Chinese Medicine 2023年第4期43卷 795-800页

作者： Minh Duc Nguyen Thanh Van Tran Quoc vinh Nguyen Cay Doan Ha Linh Vu Phuong Dang Senior Specialist Clinic National Hospital of AcupunctureHanoi 1000Vietnam Department of Senior Specialist National Hospital of Acupuncture Hanoi 1000Vietnam Department of Senior Specialist Military Institute of Traditional MedicineHanoi 1000Vietnam Department of minimally invasive spine National Hospital of AcupunctureHanoi 1000Vietnam Department of Medicine Dai Nam UniversityHanoi 1000Vietnam

OBJECTIVE:To evaluate the efficacy of bee venom acupuncture in humeroscapularis(PHS)***:One hundred and twenty patients diagnosed with PHS were assigned into four groups:BV1(0.01 mg/kg),BV2(0.005 mg/kg),BV3(0.0025 mg/kg),and control group(vitamin B1 plus novocain 3%injection)with 15 d of *** outcomes of the study including visual analogue scale(VAS)score andβ-endorphin,inflammatory cytokines including interleukin-10(IL-10),IL-1βand tumor necrosis factorα(TNF-α)and shoulder function score were assessed at baseline,after 10 and 15 d of ***:All four groups reported statistically significant improvement in VAS score,motion range,and shoulder function score(P<0.01),only the BV3 group showed significant increase of anti-inflammatory(IL-10)and decrease of pro-inflammatory(IL-1β,TNF-α)cytokines after treatment(P<0.05).The BV3 group presented a significant difference between all outcomes compared to the control and other ***:BV3 groups showed better recovery including reduced pain,improved motor function and normalized inflammatory cytokines than current therapy used in Vietnam and other groups.

关键词： periarthritis humeroscapularis bee venom acupuncture visual analogue scale range of motion articular shoulder function score inflammatory cytokines

Novel role of phosphodiesterase inhibitors in the management of end-stage heart failure

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World Journal of Cardiology 2016年第7期8卷 401-412页

作者： Abhishek Jaiswal vinh Q Nguyen thierry H le Jemtel Keith C Ferdinand Tulane School of Medicine Tulane University Heart and Vascular Institute

In advanced heart failure(HF), chronic inotropic therapy with intravenous milrinone, a phosphodiesterase Ⅲ inhibitor, is used as a bridge to advanced management that includes transplantation, ventricular assist device implantation, or palliation. this is especially true when repeated attempts to wean off inotropic support result in symptomatic hypotension, worsened symptoms, and/or progressive organ dysfunction. Unfortunately, patients in this clinical predicament are considered hemodynamically labile and may escape the benefits of guidelinedirected HF therapy. In this scenario, chronic milrinone infusion may be beneficial as a bridge to introduction of evidence based HF therapy. However, this strategy is not well studied, and in general, chronic inotropic infusion is discouraged due to potential cardiotoxicity that accelerates disease progression and proarrhythmic effects that increase sudden death. Alternatively, chronic inotropic support with milrinone infusion is a unique opportunity in advanced HF. this review discusses evidence that long-term intravenous milrinone support may allow introduction of beta blocker(BB) therapy. When used together, milrinone does not attenuate the clinical benefits of BB therapy while BB mitigates cardiotoxic effects of milrinone. In addition, BB therapy decreases the risk of adverse arrhythmias associated with milrinone. We propose that advanced HF patients who are intolerant to BB therapy may benefit from a trial of intravenous milrinone as a bridge to BB initiation. The discussed clinical scenarios demonstrate that concomitant treatment with milrinone infusion and BB therapy does not adversely impact standard HF therapy and may improve left ventricular function and morbidity associated with advanced HF.

关键词： Milrinone Advanced heart failure Bridge to beta blocker Combination therapy Inotrope support

用多层次聚类法完成的大规模关系图的可视化(英文)

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软件学报 2008年第8期19卷 1933-1946页

作者：黄茂林 NGUYEN Quang vinh Faculty of Information Technology University of TechnologySydneyAustralia

提出了一种新的大规模图形可视化技术.它可显示含有几万个接点和边的大规模关系图.为了完成对图形的抽象化。一个多层次的聚类图形从原始的大规模关系图中抽取了出来.这种抽取是建立在大规模关系图的内在结构基础上来完成的.一种递规封... 详细信息

提出了一种新的大规模图形可视化技术.它可显示含有几万个接点和边的大规模关系图.为了完成对图形的抽象化。一个多层次的聚类图形从原始的大规模关系图中抽取了出来.这种抽取是建立在大规模关系图的内在结构基础上来完成的.一种递规封入式的几何划分算法被应用来完成对几何空间的优化,在具体的制图技术上,使用了一种用力导向布局算法和环形制图法相结合的新方法,从而完成了对显示空间的优化和美擘上的优化.同时也讨论了相关的人机交互技术,所采用的人机交互算法不仅能让使用者从上到下层次式地浏览整个聚类图形。同时也能提供多层次聚类图形的并行浏览.动画技术也同时被运用,以保护使用者的精神图不被打乱.

关键词：图形绘制信息可视化场景游览人机交互聚类图形

Adaptive data fusion framework for modeling of non-uniform aerodynamic data

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Chinese Journal of Aeronautics 2023年第7期36卷 316-336页

作者： vinh PHAM Maxim TYAN Tuan Anh NGUYEN Chi-Ho leE L.V.Thang NGUYEN Jae-Woo leE Department of Aerospace Information Engineering Konkuk UniversitySeoul 05029Republic of Korea Konkuk Aerospace Design-Airworthiness Institute Konkuk UniversitySeoul 05029Republic of Korea

Multi-fidelity Data Fusion(MDF)frameworks have emerged as a prominent approach to producing economical but accurate surrogate models for aerodynamic data modeling by integrating data with different fidelity ***,most existing MDF frameworks assume a uniform data structure between sampling data sources;thus,producing an accurate solution at the required level,for cases of non-uniform data structures is *** address this challenge,an Adaptive Multi-fidelity Data Fusion(AMDF)framework is proposed to produce a composite surrogate model which can efficiently model multi-fidelity data featuring non-uniform ***,the design space of the input data with non-uniform data structures is decomposed into subdomains containing simplified ***,different MDF frameworks and a rule-based selection process are adopted to construct multiple local models for the subdomain *** the other hand,the Enhanced Local Fidelity Modeling(ELFM)method is proposed to combine the generated local models into a unique and continuous global ***,the resulting model inherits the features of local models and approximates a complete database for the whole design *** validation of the proposed framework is performed to demonstrate its approximation capabilities in(A)four multi-dimensional analytical problems and(B)a practical engineering case study of constructing an F16C fighter aircraft’s aerodynamic *** comparisons of the generated models using the proposed AMDF framework and conventional MDF approaches using a single global modeling algorithm are performed to reveal the adaptability of the proposed approach for fusing multi-fidelity data featuring non-uniform ***,the results indicated that the proposed framework outperforms the state-of-the-art MDF approach in the cases of non-uniform data.

关键词： Aerodynamic modeling Data fusion Diverse data structure Multi-fidelity data Multi-fidelity surrogate modeling

Dynamic spillovers between the term structure of interest rates,bitcoin,and safe‑haven currencies

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Financial Innovation 2021年第1期7卷 1334-1358页

作者： David Y.Aharon Zaghum Umar Xuan vinh Vo Department of Business Administration Ono Academic CollegeZahal 104 Street5545173 Kiryat OnoIsrael College of Business Zayed UniversityAbu DhabiUAE Institute of Business Research University of Economics Ho Chi Minh CityHo Chi Minh CityVietnam

this study examines the connectedness between the US yield curve components(i.e.,level,slope,and curvature),exchange rates,and the historical volatility of the exchange rates of the main safe-haven fiat currencies(Canada,Switzerland,EURO,Japan,and the UK)and the leading cryptocurrency,the *** of the static analysis show that the level and slope of the yield curve are net transmitters of shocks to both the exchange rate and its *** exchange rate of the Euro and the volatility of the Euro and the Canadian dollar exchange rate are net transmitters of ***,the curvature of the yield curve and the Japanese Yen,Swiss Franc,and British Pound act mainly as net *** static connectedness analysis shows that Bitcoin is mainly independent of shocks from the yield curve’s level,slope,and curvature,and from any main currency *** findings hint that Bitcoin might provide hedging ***,similar to the static analysis,our dynamic analysis shows that during different periods and particularly in stressful times,Bitcoin is far from being isolated from other currencies or the yield curve *** dynamic analysis allows us to observe Bitcoin’s connectedness in times of *** supporting this contention is the substantially increased connectedness due to policy shocks,political uncertainty,and systemic crisis,implying no empirical support for Bitcoin’s safe-haven property during stress *** increased connectedness in the dynamic analysis compared with the static approach implies that in normal times and especially in stressful times,Bitcoin has the property of a *** results may have important implications for investors and policymakers regarding their risk monitoring and their assets allocation and investment strategies.

关键词： Bitcoin Term structure slope Curvature Diebold and Yilmaz Connectedness Cryptocurrency Forex Currencies Safe haven

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越南下龙湾景区入境的中国游客满意度研究

越南下龙湾景区入境的中国游客满意度研究

作者：阮氏荣（NGUYEN thi vinh）沈阳师范大学

学位级别：硕士

世界旅游业的快速发展已经成为现代经济的一大特征,旅游业成为世界的第三产业中发展最快,规模最大的龙头产业。国内旅游、入境旅游、出境旅游已成为越南旅游市场的三大组成部分。旅游业已成为越南的支柱性产业,入境游客的数量和游客人... 详细信息

世界旅游业的快速发展已经成为现代经济的一大特征,旅游业成为世界的第三产业中发展最快,规模最大的龙头产业。国内旅游、入境旅游、出境旅游已成为越南旅游市场的三大组成部分。旅游业已成为越南的支柱性产业,入境游客的数量和游客人均消费速度增加快。近几年来中国游客入境越南旅游的速度越来越增加。越南下龙湾景区已成为“世界新七大自然奇观”,也是国际著名的旅游景点。越南和中国是邻国,所以提高中国游客入境下龙湾旅游龙为重要。游客满意度的测量反映地区旅游发展的标尺,吸引更多外国游客来游玩,促进增加消费的行为。游客满意度理论是近年来评价研究领域的一个重要理论基础。游客在旅游预期感知之前与游玩实际旅游有一些感知步相同,形成游客的满意度不同。借助满意度理论研究旅游展业的发展现状,是解决旅游产业发展的有效途径。全文包括五部分展开阐述:第一章介绍了研究背景,下龙湾旅游景区的发展现状,研究意义,研究内容,研究方法与创新点进行归纳总结,对照参考文献进行梳理,提出创新之处与不足。第二章阐述了文献综述,国内外研究者对于满意度的观点进行归纳,总结。第三章提出旅游满意度的影响因素,体系构建及指标的选择。第四章分析下龙湾旅游发展概况。构建了下龙湾旅游满意度模型,使用调查问卷,根据问卷结果进行分析。第五章是提升中国入境旅游对下龙湾旅游满意度的结论与对策建议。本文以来越南下龙湾入境的中国游客为对象研究,对于中国游客满意度进行深度研究。本文采用旅游满意度的相关知识,旅游市场营销理论与消费者行为学理论,使用调查问卷分析法,文献综述法,数据分析法,模糊评价分析法来进行研究入境游客满意度,发现下龙湾目前发展过程中存在的问题并且深入进行分析。在此提出对策建议,对于越南下龙湾景区进行开发,培训,打造为形成完成的旅游产业链来促进旅游的发展,具有学术价值及实践意义。

关键词：下龙湾入境旅游满意度模糊综合评价法