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| 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 | Factors associated with HIV testing, condom use, and sexually transmitted infections among female sex workers in Nha Trang, Vietnam 显示文摘 | Grayman JH Nhan do T Huong PT | 2005 | AIDS Behav2005，9，1： | 1 |
| 3 | Erase voltage impact on 0.18μm triple self-aligned split-gate flash memory endurance显示文摘The erase voltage impact on the 0.18μm triple self-aligned split-gate flash endurance is studied.An optimized erase voltage is necessary in order to achieve the best endurance.A lower erase voltage can cause more cell current degradation by increasing its sensitivity to the floating gate voltage drop,which is induced by tunnel oxide charge trapping during program/erase cycling.A higher erase voltage also aggravates the endurance degradation by introducing select gate oxide charge trapping.A progressive erase voltage method is proposed and demonstrated to better balance the two degradation mechanisms and thus further improve endurance performance. | 董耀旗 孔蔚然 Nhan Do 王序伦 李荣林 | 2010 | Journal of Semiconductors2010，31，6： | 0 |
| 4 | Noetherian Dimension and Co-localization of Artinian Modules over Local Rings显示文摘让(R, 𝔪) 是一枚 Noetherian 本地戒指。由 N 暗淡的 R 一 Artinian R 模块 A 的 Noetherian 尺寸。在这份报纸,我们给一些描述让戒指 R 满足 N 暗淡的 R =dim (R/Ann R 一) 为某些 Artinian R 模块 A。那么,有 Artinian R 模块的合作本地化兼容机的存在被学习,如果它与有限地产生的模块的本地 cohomologies 兼容,那么,基础戒指是普遍链状的,所有它的正式纤维是 Cohen 麦考莱,这被显示出。 | Le Thanh Nhan Tran Do Minh Chau | 2014 | Algebra Colloquium2014，21，4： | 0 |
| 5 | 用分离栅极闪存单元实现可编程逻辑阵列显示文摘我们开发了一种新型可配置逻辑阵列测试结构,它采用高度可伸缩且兼具功耗低和配置时间短两大优势的第3代分离栅极闪存单元。此分离栅极Super Flash配置元件(SCE)已通过90nm嵌入式闪存技术进行了演示。得到的SCE消除了对深奥的制造工艺、检测和SRAM电路的需求,并缩短了可编程阵列(PA)(例如,FPGA和CPLD)的配置时间。此外,SCE本身还具有SST分离栅极闪存技术的优点,包括紧凑的区域、低电压读操作、低功耗多晶硅间(pol y-t o-pol y)擦除、源极侧通道热电子(SSCHE)注入编程机制以及超高的可靠性。 | Henry Om’mani Mandana Tadayoni Nitya Thota Ian Yue Nhan Do | 2014 | 中国集成电路2014，23，12： | 0 |
| 6 | Anti-inflammatory effects of Solanum procumbens on a low dose complete Freund's adjuvant-induced arthritis rat model显示文摘Objective:To investigate the anti-inflammatory and analgesic effects of Solanum procumbens on complete Freund’s adjuvantinduced arthritis rat models.Methods:We isolated and identified five compounds in the ethanolsoluble Solanum procumbens extract(SP)with anti-inflammatory effects,including ursolic acid,β-sitosterol,hexadecanoic acid,cisvaccenic acid,and vanillic acid.Additionally,we investigated the anti-inflammatory effects of SP on rheumatoid arthritis symptoms,including paw volumes,local temperatures,withdrawal latency,and mechanical withdrawal threshold at the hind paw and white blood cell(WBC)number from complete Freund’s adjuvant-induced arthritis rat models.Results:We have successfully established a complete Freund’s adjuvant-induced arthritis rat model at a low dose(1 mg/mL).SP extract significantly reduced paw volumes(P<0.05),prolonged withdrawal latencies(P<0.05),decreased local temperature,and increased the mechanical withdrawal threshold(P<0.05),but only SP extract at the dose of 300 mg/kg significantly decreased WBC numbers.Conclusions:SP extract could be a potential medication candidate with anti-inflammatory effects for arthritis,but it requires further investigation into the mechanism of the SP and its effectiveness on other models as well as clinical trials. | Xuan-Hai Do Trong Nghia Nguyen Thanh Chung Dang Thi Thanh Mai Nguyen Trung Nhan Nguyen Van Nhat Truong Do Huu Tho Le Xuan Hai Nguyen Hoang Phu Dang Giang-Linh Nguyen Dinh-Khanh Hoang Van-Quan Le Van-Mao Can | 2023 | Asian Pacific Journal of Tropical Biomedicine2023，13，5： | 0 |
| 7 | 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 |
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