|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Behavior of noncircular tunnels excavated in stratified rock masses-Case of underground coal mines显示文摘The amount of tunnels excavated along stratified/sedimentary rock masses in Quangninh coal mine area,Vietnam, is gradually increasing. Rock mass in Quangninh is characterized by beddings between rock layers. The behavior of stratified rock masses surrounding the tunnels depends on both the intact rock and the beddings between rock layers. The main characteristics of stratified rock masses that need to be considered are their heterogeneity and anisotropy. Depending on the dip angle of rock layers, movements and failure zones developed surrounding the tunnels can be asymmetrical over the vertical axis of tunnel. This asymmetry causes adverse behaviors of the tunnel structures. The objective of this study is to highlight convergences and yielded zones developed in rock masses surrounding noncircular tunnels in Quangninh coal mine area using a finite element method. The presence of bedding joints is explicitly simulated. The numerical results indicated that with the increase in dip angle of bedding joints, the stress asymmetry over the tunnel vertical axis increases. It gradually leads to an asymmetry of the failure zone surrounding the tunnel. An increase of rock mass quality means a decrease of rock mass sensitivity to the discontinuities. In addition,a dip angle of the bedding joints of approximately 45° could be considered as the critical angle at which the rock mass mechanism changes between sliding and bending. | Ngoc Anh Do Daniel Dias Van Diep Dinh Tien Tung Tran Van Canh Dao Viet Doan Dao Phuc Nhan Nguyen | 2019 | Journal of Rock Mechanics and Geotechnical Engineering2019，11，1： | 9 |
| 2 | 越南茶叶产业概况显示文摘越南是典型的农业国家,农业人口占总人口的76%。近年来,越南茶叶发展很快,引起业界重视。应越南国家茶叶研究机构——越南北方山区农林业技术科学院的邀请,南京农业大学组团于2011年赴越南联合开展了越南茶叶生产状况的中越合作考察,现将越南茶叶产业概况简要介绍如下。 | Tran Xuan Hoang Do Van Ngoc 房婉萍 陈暄 黎星辉 | 2012 | 中国茶叶2012，34，7： | 6 |
| 3 | Structural and luminescent properties of (Eu,Tb) PO_4·H_2O nanorods/nanowires prepared by microwave technique显示文摘Nanowires/nanorods of europium/terbium orthophosphate monohydrate with Eu3+ concentration of 6,11,and 20 at.% were prepared by microwave synthesis method.The effects of Eu3+ doping concentration on structure,morphology and optical properties of nanoma-terials were also investigated.The results showed that,for all studied Eu3+ doping concentrations,a single-crystalline phase of rhabdo-phane-type(Eu,Tb) PO4·H2O nanowires/nanorods was obtained by using microwave heating of an aqueous solution of terbium(III) nitrate,europium(III) nitrate and NH4H2PO4 with pH=2.The length and width of these nanowires/nanorods ranged from 150 to 300 nm and from 10 to 50 nm,respectively.The evidence of energy transfer from Tb3+ to Eu3+ due to the energy overlap between the donor Tb3+ and the acceptor Eu3+ was observed obviously via a significant enhancement in the luminescent intensity of Eu3+. | Nguyen Thanh Huong Nguyen Duc Van Dinh Manh Tien Do Khanh Tung Nguyen Thanh Binh Tran Kim Anh Le Quoc Minh | 2011 | Journal of Rare Earths2011，29，12： | 2 |
| 4 | Assessing the test–retest repeatability of the V ietnamese version of the N ational E ye I nstitute 25‐item V isual F unction Q uestionnaire among bilateral cataract patients for a V ietnamese population显示文摘 | Kien Gia To Lynn Meuleners Huei‐Yang Chen Andy Lee Dung Van Do Dat Van Duong Tien Duy Phi Hoang Huy Tran Nguyen Do Nguyen | 2014 | Australasian Journal on Ageing2014，，： | 1 |
| 5 | Establishing the Method for Assessing Flood Vulnerability in Ho Chi Minh City, Vietnam A Case Study in District 6显示文摘 | Tran Thi Diem Loan Can Thu Van Nguyen Thanh Son Do Thi Hong Hoa | 2018 | Journal of Environmental Science and Engineering(B)2018，7，2： | 1 |
| 6 | Ecoregional variations of aboveground biomass and stand structure in evergreen broadleaved forests显示文摘Biotic and abiotic factors control aboveground biomass(AGB)and the structure of forest ecosystems.This study analyses the variation of AGB and stand structure of evergreen broadleaved forests among six ecoregions of Vietnam.A data set of 1731-ha plots from 52 locations in undisturbed old-growth forests was developed.The results indicate that basal area and AGB are closely correlated with annual precipitation,but not with annual temperature,evaporation or hours of sunshine.Basal area and AGB are positively correlated with trees>30 cm DBH.Most areas surveyed(52.6%)in these old-growth forests had AGB of 100–200 Mg ha^-1;5.2%had AGB of 400–500 Mg ha^-1,and 0.6%had AGB of>800 Mg ha^-1.Seventy percent of the areas surveyed had stand densities of 300–600 ind.ha^-1,and 64%had basal areas of 20–40 m^2 ha^-1.Precipitation is an important factor influencing the AGB of old-growth,evergreen broadleaved forests in Vietnam.Disturbances causing the loss of large-diameter trees(e.g.,>100 cm DBH)affects AGB but may not seriously affect stand density. | Tran Van Do Mamoru Yamamoto Osamu Kozan Vo Dai Hai Phung Dinh Trung Nguyen Toan Thang Lai Thanh Hai Vu Thanh Nam Trieu Thai Hung Hoang Van Thang Tran Duc Manh Cao Chi Khiem Vu Tien Lam Nguyen Quang Hung Tran Hoang Quy Pham Quang Tuyen Trinh Ngoc Bon Nguyen Thi Thu Phuong Ninh Viet Khuong Nguyen Van Tuan Dang Thi Hai Ha Tran Hai Long Dang Van Thuyet Dang Thinh Trieu Nguyen Van Thinh Tran Anh Hai Duong Quang Trung Nguyen Van Bich Dinh Hai Dang Pham Tien Dung Nguyen Huy Hoang Le Thi Hanh Phan Minh Quang Nguyen Thi Thuy Huong Hoang Thanh Son Nguyen Thanh Son Nguyen Thi Van Anh Nguyen Thi Hoai Anh Pham Dinh Sam Hoang Thi Nhung Hoang Van Thanh Nguyen Huu Thinh Tran Hong Van Ho Trung Luong Bui Kieu Hung | 2020 | Journal of Forestry Research2020，31，5： | 1 |
| 7 | Anti-inflammatory effects of alkaloid enriched extract from roots of Eurycoma longifolia Jack显示文摘Objective: To examine the in vitro and in vivo anti-inflammatory effects of the alkaloid enriched extract(ELA) from the roots of Eurycoma longifolia. Methods: The in vitro antiinflammatory effects of ELA were evaluated by examining its inhibitory activities against nitric oxide(NO) production and inducible nitric oxide synthase(iN OS) and cyclooxygenase2(COX-2) expressions in lipopolysaccharide(LPS)-stimulated RAW264.7 cells. The level of NO produced in the culture media was determined by Griess method. The i NOS and COX-2 protein expressions were analyzed by Western blot. The in vivo effect of ELA was evaluated on LPS-induced septic shock in mice model. Mice mortality was monitored for5 days after injection of LPS. The chemical contents of the ELA were determined by using various chromatographic and spectroscopic techniques. Results: The ELA was found to exhibit a significant anti-inflammatory effect in both in vitro and in vivo models. The results demonstrated that ELA dose-dependently inhibited LPS-induced NO production as well as the protein iN OS and COX-2 expressions. In the septic shock model, ELA dose-dependently protected mice from LPS-induced mortality. Further study on the isolated components of ELA indicated that 9,10-dimethoxycanthin-6-one may contribute significantly to the antiinflammatory effects of the extract. Conclusions: These results suggest that ELA exhibits the anti-inflammatory activity via suppression of pro-inflammatory mediators such as NO, iN OS,and COX-2 and protects mice from LPS-induced mortality in septic shock model. | Dao Thi Thanh Hien Tran Phi Long Tran Phuong Thao Jeong-Hyung Lee Duong Thu Trang Nguyen Thi Thu Minh Pham Van Cuong Do Thi Ngoc Lan Nguyen Hai Dang Nguyen Tien Dat | 2019 | Asian Pacific Journal of Tropical Biomedicine2019，9，1： | 1 |
| 8 | Assessment of genetic diversity and population structure of Vietnamese indigenous cattle populations by microsatellites显示文摘 | Lan Doan Pham Duy Ngoc Do Nguyen Trong Binh Le Quang Nam Nguyen Van Ba Tran Thi Thu Thuy Tran Xuan Hoan Vu Chi Cuong Haja N. Kadarmideen | 2013 | Livestock Science2013，，1： | 1 |
| 9 | Simultaneous degradation of 2, 4, 6-trinitrophenyl- N-methylnitramine (Tetryl) and hexahydro-1, 3, 5-trinitro-1, 3, 5 triazine (RDX) in polluted wastewater using some advanced oxidation processes 显示文摘 | Do Ngoc Khue Tran Dai Larn Nguyen Van Chat | 2014 | J Ind Eng Chem2014，20，： | 1 |
| 10 | 越南茶树新品种叶片解剖结构特点研究显示文摘本实验对三个越南茶树新品种的叶片解剖结构特点进行了研究分析,观测了茶树叶片第一叶、第二叶、第三叶的叶片厚度、上表皮厚度、棚栏组织厚度和腺鳞(多毛)密度。结果表明:抗旱最好的茶树品种是Kim Tuyen,其次是PH10,最后是PH8;品种抗旱性与叶片厚度、上表皮厚度、棚栏组织厚度呈显著正相关,特别是与叶片厚度呈极显著正相关(r=0,8142**,P<0,01)。初步结论:PH10、Kim Tuyen品种适制绿茶和乌龙茶;PH8品种造制绿茶。 | Tran Xuan Hoang Dang Van Thu Do Van Ngoc Le Tat Khuong 王明乐 黎星辉 | 2014 | 福建茶叶2014，36，6： | 1 |
| 11 | Quaternary sedmentation of the principal deltas of Vietnam显示文摘 | Tran Nghi Ngo Quang Do Thi Van | 1991 | Journal of Southeast Asian Earth Sciences1991，6，2： | 1 |
| 12 | The impact of cataract surgery on depressive symptoms for bilateral cataract patients in Ho Chi Minh City, Vietnam显示文摘 | Kien Gia To Lynn B. Meuleners Michelle L. Fraser Dat Van Duong Dung Van Do Van-Anh Ngoc Huynh Tien Duy Phi Hoang Huy Tran Nguyen Do Nguyen | 2013 | International Psychogeriatrics2013，，： | 1 |
| 13 | Development of the layer-by-layer biosensor using graphene films: application for cholesterol determination显示文摘 | Hai Binh Nguyen Van Chuc Nguyen Van Tu Nguyen Huu Doan Le Van Quynh Nguyen Thi Thanh Tam Ngo Quan Phuc Do Xuan Nghia Nguyen Ngoc Minh Phan Dai Lam Tran | 2013 | Advances in Natural Sciences: Nanoscience and Nanotechnology2013，，1： | 1 |
| 14 | Extracellular signal-regulated kinase induces cyclin D1 and Cdk-2 expressionand phosphorylation of retinoblastoma in hepatocellular carcinoma显示文摘 | H. Huynh P. Do T. Nguyen P. Chow P. Tan T. Quach T. Van K. Soo E. Tran | 2004 | International Journal of Oncology2004，，6： | 1 |
| 15 | Introduction to the China-Vietnam Cooperation Project: A Comparative Study of the Holocene Sedimentary Evolution of the Yangtze and Red River Deltas显示文摘Both China and Vietnam confront the challenges of natural geohazards and environmental changes in their deltas and coastal zones due to rapid urbanization, economic development, and the impacts of global climate change. China and Vietnam initiated a comparative study of the Holocene sedimentary evolution of the Yangtze River Delta(YRD) and Red River Delta(RRD) for the period 2015–2018 in order to improve the understanding of the two delta evolution histories in the Holocene. Previous investigative data of the two rivers, onshore delta plains, and offshore subaqueous deltas have been explored and reinterpreted. New data gleaned from boreholes, piston cores, shallow seismic and hydrodynamic sources have been collected from the offshore YRD and the East China Sea inner shelf, and surface sediments and short cores have been collected from the RRD near-shore areas. Six focal areas of the joint project have been defined for comparative studies of the two deltas, including morphological development, sequential stratigraphy, coastline shifting, sedimentary characteristics, sedimentary dynamics, and correlation with anthropogenic global climate change. The results of these study areas are presented herein. The joint project also includes cooperative capacity building; exchanges of young scientists have been organized during the project period, and hands-on training in laboratory geochemical analysis, numerical modeling, and seismic data processing and interpretation have been provided by China and its Vietnamese geoscientist partners. Joint field excursions were organized to the upstream of the Yangtze and Red Rivers in Yunan Province, China, all the way downstream along the Vietnamese portion of the Red River. These joint studies have, over the past three years, improved understanding of the evolutionary history of these two major rivers and their mechanisms of source to sink. Joint project results of these two major deltas are not limited to the geosciences; the cooperative mechanical and operational experiences have been helpful for future cooperation in the field of marine geoscience between China and Vietnam, as well for cooperative activities with other ASEAN member countries. | YIN Ping PHUNG Van Phach TRAN Dinh Lan DO Huy Cuong BUI Van Vuong DUAN Xiaoyong | 2018 | Journal of Ocean University of China2018，17，6： | 0 |
| 16 | Fluctuating temperature modifies heat-mortality association around the globe显示文摘Studies have investigated the effects of heat and temperature variability(TV)on mortality.However,few assessed whether TV modifies the heat-mortality association.Data on daily temperature and mortality in the warm season were collected from 717 locations across 36 countries.TV was calculated as the standard deviation of the average of the same and previous days’minimum and maximum temperatures. | Yao Wu Bo Wen Shanshan Li Antonio Gasparrini Shilu Tong Ala Overcenco Ales Urban Alexandra Schneider Alireza Entezari Ana Maria Vicedo-Cabrera Antonella Zanobetti Antonis Analitis Ariana Zeka Aurelio Tobias Barrak Alahmad Ben Armstrong Bertil Forsberg CarmenÍñiguez Caroline Ameling César De la Cruz Valencia ChristoferÅström Danny Houthuijs Do Van Dung Dominic Royé Ene Indermitte Eric Lavigne Fatemeh Mayvaneh Fiorella Acquaotta Francesca de’Donato Francesco Sera Gabriel Carrasco-Escobar Haidong Kan Hans Orru Ho Kim Iulian-Horia Holobaca Jan Kyselý Joana Madureira Joel Schwartz Klea Katsouyanni Magali Hurtado-Diaz Martina SRagettli Masahiro Hashizume Mathilde Pascal Micheline de Sousa Zanotti Stagliorio Coélho Noah Scovronick Paola Michelozzi Patrick Goodman Paulo Hilario Nascimento Saldiva Rosana Abrutzky Samuel Osorio Tran Ngoc Dang Valentina Colistro Veronika Huber Whanhee Lee Xerxes Seposo Yasushi Honda Michelle L.Bell Yuming Guo | 2022 | The Innovation2022，3，2： | 0 |
| 17 | 金喜楼梯草(荨麻科),越南楼梯草属植物一新种(英文)显示文摘对产自越南的荨麻科楼梯草属植物一新种金喜楼梯草(Elatostema kimhyense Y.G.Wei&V.T.Do)作了描述和绘图。该种生长于海拔350~400和1 100~1 200 m的石灰岩山地林下。该新种与越南楼梯草(E.vietnamense Q.Lin&L.D.Duan)接近,区别在于其拥有肉质茎,羽状脉,叶背面、苞片和小苞片被微硬毛。 | DO Van Truong 林云 TRAN Ngoc Hai 韦毅刚 | 2017 | 植物研究2017，37，3： | 0 |
| 18 | In vivo anticancer activity of maesopsin 4—O— β—glucoside isolated from leaves of Artocarpus tonkinensis A.Chev.Ex Gagnep显示文摘Objective:To investigate the antitumor effect of maesopsin 4-O-β-glucoside(TAT2) isolated from the leaves of Artocarpus tonkinensis(A.tonkinensis) A.Chev.ex Gagnep.Methods:The antitumor activity of TAT2 was evaluated in Lewis lung carcinoma(LLC) tumor-bearing mice.BALB/c mice had tumors induced by implantation with 2× 10~6 LLC cells into the subcutaneous right posterior Hank.Tumor-bearing mice were treated orally with a range of doses of TAT2 and a standard drug,doxorubicin.Animals were observed for tumor growth and mortality rate.Blood was collected to determine hematological and biochemical parameters.Results TAT2 was isolated from an ethanolic extract of 1.tonkinensis leaves.Its structure was determined by MS and NMR spectroscopy,and identified as TAT2.The compound did not show acute toxicity at the highest dose tested(2 OIK) mg/kg body weight).TAT2 exhibited antitumor activity by decreasing tumor growth,increasing the survival rale,and ameliorating some hematological and biochemical parameters at doses of 100 and 200 mg/kg body weight(P<0.05).Conclusions:These results indicate that TAT2 possesses clear antitumor activity.Due to its bioavailability and low toxicity,and the fact that it could be isolated in a large scale from A.tonkinensis leaves,the compound shows promise as a potential anticancer drug. | Trinh Thi Thuy Dao Duc Thien Tran Quang Hung Nguyen Thanh Tam Nguyen Thi Hoang Anh Nguyen Thi Nga Nguyen Thi Cuc Le Phuong Mai Tran Van Sung Domenico V.Delfino Do Thi Thao | 2016 | Asian Pacific Journal of Tropical Medicine2016，9，4： | 0 |
| 19 | Hydrogen roles approaching ideal electrical and optical properties for undoped and Al doped ZnO thin films显示文摘This paper distinguished hydrogen roles to improve electron mobility and carrier concentration in ZnO and Al doped ZnO sputtered films.By combining experimental evidences and theoretical results,we find out that hydrogen located at oxygen vacancy sites(H_(O))is the main factor gives rise to increase simultaneously mobility and carrier concentration which has not been mentioned before.Introducing appropriate hydrogen content during sputtering not only results in crystalline relaxation but also supports doping Al into ZnO,increasing carrier concentration and electron mobility in the film.First principles calculations confirmed hydrogen substitutional stability for oxygen vacancy,significantly reducing electron conductivity effective mass and hence increasing electron mobility.In particular,0.8%hydrogen partial pressure ratio achieved 61 cm^(2)V^(-1)s^(-1)maximum electron mobility,optical transmittance above 82%in visible and near-infrared regions,and 2×10^(20) cm^(-3)carrier concentrations for H-Al co-doped ZnO film.These values approach ideal electrical and optical properties for transparent conducting oxide films.The presence of one maximum electron mobility was attributed to competition between increasing mobility due to restoring effective electron mass and hydrogen passivation of native defects,and decreased electron mobility due to electron-phonon scattering. | Dung Van Hoang Nam Hoang Vu Nga Thi Do Anh Tuan Thanh Pham Truong Huu Nguyen Jer-Lai Kuo Thang Bach Phan Vinh Cao Tran | 2022 | Journal of Materiomics2022，8，1： | 0 |
| 20 | 唤醒空间!城市生态阳台,河内,越南显示文摘我们是来自越南及意大利的青年建筑师团队,在越南开设了一家建筑工作室。2016年10月,我们在河内租赁了一个办公空间。在了解河内市周边环境后,我们发现,可能由于市区里的灰尘、噪音和防盗等问题,这里有很多阳台都未被实际使用。市民几乎不与外部环境或附近的邻居互动。我们把那些阳台称为沉寂空间。 | 无 An Viet Dung Roberto Iannetti Pham Ngoc Linh An Thanh Nhan Nelly Agliardi Quach Hai Linh Bui Huu Tung Le Van Tung Do Thi Hien Nguyen Phi Hung Due Chu Bang Thanh 天妮(译) Nguyen Thai Thach(摄影) Quang Tran(摄影) | 2020 | 世界建筑2020，，10： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员