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Journal of Environmental Science and Engineering(B) 2021年第4期10卷 138-150页

作者： Ngo Chi Tuan nguyen Thanh Son nguyen Kien Dung Can thu Van University of Science Vietnam National UniversityHanoi 1000000Vietnam Hanoi University of Natural Resources and Environment Hanoi 1000000Vietnam Ho Chi Minh City University of Natural Resources and Environment Ho Chi Minh City 700000Vietnam

In recent times,approaches to flood prevention and mitigation have changed a *** changes are to shift the focus from flood control to flood risk management,in which the assessment of vulnerability to floods caused by each sector and field corresponding to each flood magnitude is *** flood vulnerability assessment studies are basically holistic based on factors affected by floods or in aspects:economy,society and ecological environment,and aspects that are mentioned in all areas of social *** content of the flood vulnerability assessment method usually considers 3 components:E(Exposure),S(Susceptibility),A(Adaptability-Recovery).Each component will contain many different variables belonging to different objects and different natural-economic-social characteristics in each ***,for each research area,the evaluation method needs to establish an appropriate set of indicators.A set of indicators used to assess flood vulnerability must:be scientific;be practical;simplify the investigation,collection and synthesis of *** study has established a set of combinatorial indicators including 27 indicators for the T-BRB(Thach Han-Ben Hai River Basin)on the basis of analysis and synthesis from case studies.

关键词： Vulnerability combine indicators T-BRB

Research and Experimental Application of Empirical Formulas to Calculate Riverbank Erosion in Tien River in the Mekong Delta

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Journal of Environmental Science and Engineering(A) 2021年第3期10卷 116-123页

作者： Can thu Van nguyen Thanh Son Ngo Chi Tuan Ho Chi Minh City University of Natural Resources and Environment Ho Chi Minh City 700000Vietnam University of Science Vietnam National UniversityHo Chi Minh City 700000Vietnam

In recent years,the problem of riverbank and coastal erosion in the MD(Mekong Delta)is very complicated;landslides occur in most of the inland and coastal *** riverbank landslides occur gradually,but in contrast to sudden landslides that cause great damage,occur with increasing *** shows that the trend of riverbank erosion will be more complicated and more frequent,especially in the context of extreme weather changes and changes in hydrological regime in the next *** from the authorities show that,if in 2010 the whole region had nearly 100 landslide points;by 2020 it had increased to more than 680 points;in which Dong Thap in the Tien River is one of the two localities with the most serious riverbank ***,there are many methods used to assess and forecast the level of riverbank erosion in specific areas,such as:method of document analysis,measurement data;physical model;mathematical models and empirical *** this study,the empirical formula is used to calculate the landslide level for the Tien River section in Cao Lanh,Dong Thap *** calculation results according to the empirical formula have a certain agreement with the actual data,the correlation coefficient is 0.90 and the Nash coefficient is 0.78,the relative error of less than 15%is 80%of the *** results have shown the possibility of applying empirical formulas to establish and calculate for other landslide areas along the banks of Hau River and MD.

关键词： Riverbank erosion MD empirical formula for calculating bank erosion

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越南茶叶生产现状与展望

中国茶叶 2018年第6期40卷 57-59页

作者： Tran Xuan Hoang Hoang Ha nguyen Dang Van thu 刘馨秋陈暄孙康黎星辉越南北方农林业科学院茶叶研究与发展中心南京农业大学中华农业文明研究院 210095 南京农业大学茶叶科学研究所 210095

调查分析了越南茶园面积、茶叶产量、加工技术、产品结构、质量管理与食品安全、内销与外销等多方面现状。提出未来越南茶叶发展中需控制茶园面积、推广优良茶树品种、加大设备和管理投入、提升茶叶品质、调整茶叶产品结构。

关键词：越南茶叶生产现状展望

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关中平原畜禽粪便重金属农用风险估算

中国环境科学 2015年第12期35卷 3824-3832页

作者：庞妍唐希望吉普辉杨莉莉 nguyen Thanh Hung 同延安西北农林科技大学资源环境学院陕西杨凌712100 农业部西北植物营养与农业环境重点实验室陕西杨凌712100 College of Resources and Environment Thu Dau Mot University

通过在关中平原畜禽养殖集中的县区采集畜禽粪便和饲料样品,测定其中Cr、Cu、Pb、Zn等重金属元素含量,以评估施用畜禽粪便造成的土壤重金属累积速率和安全使用年限.结果表明,牛粪、鸡粪、猪粪样品中Cr超标率分别为7.69%,4.35%和8.00%,... 详细信息

通过在关中平原畜禽养殖集中的县区采集畜禽粪便和饲料样品,测定其中Cr、Cu、Pb、Zn等重金属元素含量,以评估施用畜禽粪便造成的土壤重金属累积速率和安全使用年限.结果表明,牛粪、鸡粪、猪粪样品中Cr超标率分别为7.69%,4.35%和8.00%,而猪粪中Cu、Zn超标率分别达到76.00%和8.00%.饲料样品中Cu、Zn含量高于Cr、Pb含量,且与畜禽粪便Cu、Zn含量呈极显著正相关关系结合主成分分析可知,畜禽粪便中Cu、Zn主要来源于饲料.形态分析结果显示,畜禽粪便中Cu,Zn的有效性很高,尤其是鸡粪中Cu、Zn的有效态含量最高若畜禽粪便施用量保持在当前水平,则施用畜禽粪便24.4~131.0年和69.7~91.9年后,大棚土壤中Cu、Zn含量即可从土壤背景值分别达到安全临界值,因此,畜禽粪便农用时不仅要控制其施用量,还应适当减少饲料中Cu、Zn添加量.

关键词：畜禽粪便饲料重金属累积速率安全年限

Green synthesis of three-dimensional magnesium ferrite/titanium dioxide/reduced graphene from Garcinia mangostana extract for crystal violet photodegradation and antibacterial activity

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Journal of Semiconductors 2023年第12期44卷 111-124页

作者： Tong Hoang Lin Che Quang Cong nguyen Thanh Hoai Nam Hoang An nguyen Duy Hai Ton That Buu Thoi Le Nhat Binh Hoang Le Minh Lam Thanh Ngan Hoang thuy Kim Ngan Du Chi Vi Ta Dang Khoa nguyen Huu Hieu VNU-HCM Key Laboratory of Chemical Engineering and Petroleum Processing(Key CEPP Lab)Ho Chi Minh City University of Technology(HCMUT)268 Ly Thuong Kiet StreetDistrict 10Ho Chi Minh CityVietnam Faculty of Chemical Engineering Ho Chi Minh City University of Technology(HCMUT)268 Ly Thuong Kiet StreetDistrict 10Ho Chi Minh CityVietnam Vietnam National University Ho Chi Minh City(VNU-HCM) Linh Trung WardThu Duc CityVietnam

In this study,three-dimensional porous magnesium ferrite/titanium dioxide/reduced graphene oxide(Mg Fe_2O_(4)-GM/TiO_(2)/rGO(MGTG))was successfully synthesized via green and hydrothermal-supported co-precipitation methods using the extract of Garcinia mangostana(***)as a reducing *** characterization results indicate the successful formation of the nano/micro Mg Fe_(2)O_(4)(MFO)and TiO_(2) on the structure of the reduced graphene oxide(rGO),which can also act as efficient support,alleviating the agglomeration of the nano/micro MFO and TiO_(2).The synergic effects of the adsorption and photodegradation activity of the material were investigated according to the removal of crystal violet(CV)under ultraviolet *** effects of catalyst dosage,CV concentration,and p H on the CV removal efficiency of the MGTG were also *** to the results,the CV photodegradation of the MGTG-200 corresponded to the pseudo-first-order kinetic *** reusability of the material after 10 cycles also showed a removal efficiency of 92%.this happened because the materials can easily be recollected using external *** addition,according to the effects of different free radicals·O_(2)^(-),h^(+),and·OH on the photodegradation process,the photocatalysis mechanism of the MGTG was also thoroughly *** antibacterial efficiency of the MGTG was also evaluated according to the inhibition of the Gram-positive bacteria strain Staphylococcus aureus(***).Concurrently,the antibacterial mechanism of the fabricated material was also *** results confirm that the prepared material can be potentially employed in a wide range of applications,including wastewater treatment and antibacterial activity.

关键词： magnesium ferrite titanium dioxide reduced graphene oxide Garcinia mangostana photodegradation antibacterial

Deformed Gauge Invariance with Massive Gauge Vector Bosons

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Journal of Modern Physics 2017年第1期8卷 82-86页

作者： Dao Vong Duc nguyen Mong Giao Tran Thanh Dung Institute of Physics Hanoi Vietnam Center for Nuclear Research HCM City Vietnam thu Dau Mot University Binh Duong Province Vietnam

We consider the concept of deformed gauge invariance. The described formalism allows the vector gauge bosons to be massive independently of Higgs mechanism. It also allows the possibility for the variability of gauge ... 详细信息

关键词： Gauge Invariance Vector Boson Mass

关中地区日光温室重金属污染及其田块尺度下的特征

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干旱地区农业研究 2016年第1期34卷 272-278,287页

作者：唐希望同延安吉普辉梁连友庞妍 nguyen Tanh Hung 王力西北农林科技大学资源环境学院陕西杨凌712100 College of Resources and Environment Thu Dau Mot UniversityBinh DuongVietNam 72000

对关中地区8个日光温室集中分布区域土壤重金属污染进行了调查,并比较了两个相同年限相近位置日光温室污染分布特征,在田块尺度下应用ARCGIS软件地统计学模块进行了插值模型分析。结果表明,8个日光温室采样点污染负荷指数（PLI）在1.087... 详细信息

对关中地区8个日光温室集中分布区域土壤重金属污染进行了调查,并比较了两个相同年限相近位置日光温室污染分布特征,在田块尺度下应用ARCGIS软件地统计学模块进行了插值模型分析。结果表明,8个日光温室采样点污染负荷指数（PLI）在1.087-1.723之间,均为中等污染;区域PLI值为1.311,区域日光温室土壤重金属为中等污染。地统计学插值图表明1号日光温室Cd,2号日光温室Cd、Cu、Pb均出现不同程度累积。在田块尺度下,日光温室1中Cd上层土壤分布高于下层,Cr、Cu和Pb在0-1 m土壤随机分布;日光温室2中Cd和Cu上层土壤分布高于下层,Pb和Cr下层土壤分布高于上层。日光温室重金属污染具有复杂性,即便相同年限相近位置不同日光温室内土壤重金属污染特点也不尽相同。

关键词：关中地区日光温室重金属污染地统计学空间分布

Inflammatory conversion of quiescent osteoblasts by metastatic breast cancer cells through pERKl/2 aggravates cancer-induced bone destruction

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Bone Research 2021年第4期9卷 557-570页

作者： Jungho Back Minh Nam nguyen Lu Li Saelim Lee Inkyu Lee Fancheng Chen Lauren Gillinov Yeon-Ho Chung Kareme D.Alder Hyuk-Kwon Kwon Kristin E.Yu Christopher M.Dussik Ziehen Hao Michael J.Flores Yoseph Kim Izuchukwu K.Ibe Alana M.Munger Sung Wook Seo Francis Y.Lee Department of Orthopaedics&Rehabilitation Yale UniversitySchool of MedicineNew HavenCTUSA Research Center for Genetics and Reproductive Health School of MedicineVietnam National University Ho Chi Minh CityLinh Trung WardThu Due DistrictHo Chi Minh CityVietnam Department of Rehabilitation Medicine Renji HospitalSchool of MedicineShanghai JiaoTong UniversityShanghaiChina College of Medicine Dankook UniversityCheonanRepublic of Korea Department of Life Science Chung-Ang UniversitySeoulRepublic of Korea Shanghai Medical College Fudan UniversityShanghai CityChina Department of Emergency&Trauma Changhai HospitalNavy Medical UniversityShanghaiChina Biomedical Engineering Johns Hopkins UniversityBaltimoreMDUSA Department of Orthopedic Surgery Samsung Medical CenterSungkyunkwan University School of MedicineSeoulGangnam-guRepublic of Korea

Disruption of bone homeostasis caused by metastatic osteolytic breast cancer cells increases inflammatory osteolysis and decreases bone formation,thereby predisposing patients to pathological fracture and cancer *** of osteoblast function induces skeletal diseases due to the disruption of bone *** observed increased activation of pERK1/2 in osteolytic breast cancer cells and osteoblasts in human pathological specimens with aggressive osteolytic breast cancer *** confirmed that osteolytic breast cancers with high expression of pERK1/2 disrupt bone homeostasis via osteoblastic ERK1/2 activation at the bone-breast cancer *** process of inflammatory osteolysis modulates ERK1/2 activation in osteoblasts and breast cancer cells through dominant-negative MEK1 expression and constitutively active MEK1 expression to promote cancer growth within ***,an FDA-approved MEK inhibitor,not only reduced breast cancer-induced bone destruction but also dramatically reduced cancer growth in bone by inhibiting the inflammatory skeletal *** together,these findings suggest that ERK1/2 activation in both breast cancer cells and osteoblasts is required for osteolytic breast cancer-induced inflammatory osteolysis and that ERK1/2 pathway inhibitors may represent a promising adjuvant therapy for patients with aggressive osteolytic breast cancers by altering the shared cancer and bone microenvironment.

关键词： pERK1/2 breast homeostasis

Transparent and Conductive Properties of Nanocomposite thin Film of MWCNTs and PEDOT-PSS for Applications in OLED

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材料科学与工程（中英文A版） 2015年第3期5卷 176-182页

作者： Khanh nguyen Duy Hoai Nam nguyen Phuong Laboratory for Nanotechnology Vietnam National University Community 6 Linh Trung Ward Thu Duc District Ho Chi Minh City Vietnam University of Engineering and Technology Vietnam National University 144 Xuan Thuy Cau Giay District Hanoi Vietnam

It is know that Multi-walled Carbon Nano Tubes (MWCNTs) are an excellent conduction nanomaterial while Poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT-PSS) is a conductive and transparent polymer. In this paper, we mix MWCNTs with PEDOT-PSS to create a new type of nanocomposite thin film which has both excellent conduction and transparency of each composition materials for applications in electronics and optoelectronics. The nanocomposite is synthesized by modifying MWCNTs in an acid solution then mix with PEDOT-PSS. The field emission scanning electron microscopy (FESEM) images of the fabricated thin film with 0.3 Wt% of MWCNTs show that the diameter and length of the MWCNTs are ca.10-30 nm and 300-500 nm, respectively. Electrical and optical properties of thin film are also investigated: the sheet resistance reaches the minimum value of 36.5 ?/sq with the transparency of ca.76% at the wave length of 600 nm. Furthermore, I-V characteristics of organic light emission diodes (OLEDs) made by the synthesized nanocomposite thin films are analyzed. The ITO/PEDOT-PSS: CNTs/PVK: MEH-PPV/Al multilayer OLED exhibits well improving performance with the work function of 0.8 V corresponding with the current of 0.4 mA while the ITO/PVK: MEH-PPV/Al simple OLED has the work function of 3 V and the current of only 0.01 mA.

关键词：多壁碳纳米管纳米复合薄膜导电性能 OLED 应用程序场发射扫描电子显微镜 MEH-PPV 有机发光二极管

Enhanced Electrochemical and Physical Properties of Ag/AgCl Planar Reference Electrodesin Potentiometric Sensors by Graphite Oxide Layer

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材料科学与工程（中英文A版） 2019年第2期9卷 83-90页

作者： Tung Son Vinh nguyen Tien Minh Huynh Tin Chanh Duc Doan Chien Mau Dang Community 6 Linh Trung Ward Thu Duc District Ho Chi Minh City 800010 Vietnam

The most common reference electrode (RE) which is used in electrochemical measurements is the Ag/AgCl electrode. In this study, we present a novel solid-state Ag/AgCl planar electrode that was coated with a thin layer of Graphite Oxide (GO) as a protective layer. The Ag/AgCl planar electrode was fabricated by using the photolithography and lift-off method combined with the Ag[NH3]2Cl complex. The GO was produced by Hummer’s method and was deposited on top of the Ag/AgCl layer by drop-casting method. The layers of the fabricated reference electrode were characterized by micro Raman spectroscopy, Scanning Electron Microscopy (SEM) and Energy-dispersive X-ray spectroscopy (EDX). The responding time of the planar electrode was short and the signal was more stable in comparison to the plainAg/AgCl electrode. The Open Circuit Potential (OCP) measurement with the fabricated electrode as the RE and the platinum electrode as the working electrode in electrolyte solutions which had various pH values was performed with a linear response in pH ranges from pH 5 to pH 8 and the linear correlation coefficient (R^2 = 0.9899). Moreover, the coating of the GO layers also enhanced the durability of the modified electrode. The results showed that the modified Ag/AgCl electrode with a thin layer GO as the protective layer could be used as plana REs for the potentiometric sensors.

关键词： Graphite oxide potentiometric sensor Ag/AgCl reference electrode