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| 1 | An Imperfect-debugging Fault-detection Dependent-parameter Software显示文摘合并有瑕疵的调试和开发者的学习现象的软件可靠性生长模型(SRGM ) 最近被许多研究人员开发了估计象仍然是差错和软件可靠性的数字那样的软件可靠性措施。然而, SRGM 的察觉率功能经常是的差错内容率功能和差错的模型参数考虑了来自对方独立。在实践,这个假设不能是案例,调查是价值如果它不是,怎么办。在这篇论文,我们为如此的学习瞄准并且建议连接在二个函数之中的由一个普通参数的有瑕疵的调试和学习现象的一个软件可靠性模型,叫了有瑕疵调试的差错察觉依赖参数的模型。从真实应用程序收集的软件严峻的数据被利用为两个说明建议模型由决定非零的描述、预兆的力量起始的调试过程。关键词非同类的泊松过程 - 软件可靠性生长 - 最少的广场估计 - 预兆的力量 - 预兆比率的风险 Hoang Pham 在公牛从纽约的州立大学在工业工程从伊利诺大学, Urbana 平原,和硕士和博士学位在统计收到了硕士学位。他是有部门的大学生程序的一个教授和主席工业并且在 Rutgers 大学的系统工程, Piscataway,新泽西。在加入 Rutgers 前,他是有波音公司,西雅图,和设计实验室的爱达荷公民的一位高级工程专家,爱达荷下降。他是二本书的作者:软件可靠性(Springer-Verlag, 2000 ) 并且系统软件可靠性(Springer, 2006 ) ;这本书的合作者:可靠性和最佳的维护(Springer, 2006 ) ;可靠性工程的手册的编辑(Springer-Verlag, 2003 ) ;并且设计统计的手册(Springer, 2006 ) 在许多其它之中。他也是在可靠性工程的 Springer 系列的编辑并且出版了十体积的超过 90 篇杂志文章, 25 书章,和编辑。他是设计的可靠性,质量和安全的国际杂志的主编并且是几本杂志的一个编委成员。他是超过 25 个国际会议和专题讨论会的会议主席和程序主席,并且当前在设计是可靠性和质量上的第 13 国际会议的会议主席,西雅图, 2007。他是系统,人,和控制论上的 IEEE 交易的一个伙伴编辑。他的研究兴趣包括软件可靠性,当模特儿的系统可靠性,维护,和环境风险评价。 | Hoang Pham | 2007 | International Journal of Automation and computing2007，4，4： | 11 |
| 2 | Synthesis and characterization of NaYF4:Yb3+,Er3+@silica-N=folic acid nanocomplex for bioimaginable detecting MCF-7 breast cancer cells显示文摘Upconversion nanophosphors are new promising nanomaterials to be used as biolabels for detection and imaging of cancer cells.These nanophosphors absorb long-wavelength excitation radiation in the infrared or near infrared region and emit shorter wavelength,higher energy radiation from ultraviolet to infrared.In this paper,we studied the hydrothermal method and optical properties of the functionalized NaYF4:Yb^3+,Er^3+for biomedical application.After synthesis,these NaYF4:Yb^3+,Er^3+nanophosphors were functionalized with aminosilanes and folic acid.Folic acid binds to the folate receptor on the surface of MCF-7 breast cancer cells and this binding promotes internalization of the nanophosphors via endocytosis.The sizes of the functionalized NaYF4:Yb^3+,Er^3+@silica-N=FA(folic acid)nanophosphors can be controlled with length of the rod about 300-800 nm and diameter of the rod about 100-200 nm.Phase structure of NaYF4:Yb^3+,Er^3+is in hexagonal crystal system.The photo luminescence(PL)spectra of the functionalized NaYF4:Yb^3+,Er^3+@silica-N=FA nanophosphors were measured.These nanophosphors emit in red color with the strongest band at 650 nm under 980 nm excitation.This result can provide NaYF4:Er^3+,Yb^3+@silica-N=FA complex for developing fluorescence label and image tool in cancer biology and medicine. | Ha Thi Phuong Tran Thu Huong Le Thi Vinh Hoang Thi Khuyen Do Thi Thao Nguyen Thanh Huong Pham Thi Lien Le Quoc Minh | 2019 | Journal of Rare Earths2019，37，11： | 5 |
| 3 | Xanthine oxidase inhibitors from Archidendron clypearia(Jack.) I.C. Nielsen: Results from systematic screening of Vietnamese medicinal plants显示文摘Objective: To screen Vietnamese medicinal plants for xanthine oxidase(XO) inhibitory activity and to isolate XO inhibitor(s) from the most active plant. Methods: The plants materials were extracted by methanol. The active plant materials were fractionated using different organic solvents, including n-hexane, ethyl acetate, and n-butanol. Bioassay-guided fractionation and column chromatography were used to isolate compounds. The compounds structures were elucidated by analysis of spectroscopic data, including IR, MS, and NMR. Results: Three hundreds and eleven methanol extracts(CME) belonging to 301 Vietnamese herbs were screened for XO inhibitory activity. Among these plants, 57 extracts displayed XO inhibitory activity at 100 μg/m L with inhibition rates of over 50%. The extracts of Archidendron clypearia, Smilax poilanei, Linociera ramiflora and Passiflora foetida exhibited the greatest potency with IC_(50) values below 30 μg/m L. Chemical study performed on the extract of Archidendron clypearia resulted in the isolation of six compounds, including 1-octacosanol, docosenoic acid, daucosterol, methyl gallate, quercitrin and(-)-7-O-galloyltricetiflavan. The compound(-)-7-O-galloyltricetiflavan showed the most potent XO inhibitory activity with an IC_(50) value of 25.5 μmol/L. Conclusions: From this investigation, four Vietnamese medicinal plants were identified to have XO inhibitory effects with IC_(50) values of the methanol extracts below 30 μg/m L. Compound(-)-7-O-galloyltricetiflavan was identified as an XO inhibitor from Archidendron clypearia with IC_(50) value of 25.5 μmol/L. | Nguyen Thuy Duong Pham Duc Vinh Phuong Thien Thuong Nguyen Thi Hoai Le Nguyen Thanh Tran The Bach Nguyen Hai Nam Nguyen Hoang Anh | 2017 | Asian Pacific Journal of Tropical Medicine2017，10，6： | 5 |
| 4 | 灌草对胖大海种群更新幼树幼苗密度的影响显示文摘通过对越南同奈天然文化自然保护区天然阔叶和半落叶林中灌木高度和盖度以及草本盖度对胖大海幼树幼苗密度大小影响的研究,探讨灌木草本对胖大海种群更新及其可持续发展的影响。结果表明:灌木盖度对胖大海幼树幼苗更新密度有显著影响,在3个优势度等级林分随着灌木盖度的逐渐增加,胖大海幼树幼苗更新密度呈单调下降,灌木高度与胖大海幼树幼苗密度的回归关系符合模型:y=a+bx+cx^2;不同灌木盖度和高度等级与胖大海更新幼树幼苗密度呈显著相关,优势度一级和二级林分中灌木高度在300~400 cm且盖度<40%,胖大海幼树幼苗密度为2 500~3 000株/hm^2;当灌木高度<200 cm且其盖度在70%以上时,胖大海幼树幼苗密度为500~1 000株/hm^2;优势度三级林分中灌木高度300~400 cm和盖度<40%时,胖大海幼树幼苗密度为3 000~4 000株/hm2;胖大海幼树幼苗密度随着草本盖度的增加而逐渐下降,3个优势度等级林分胖大海幼树幼苗密度和草本盖度的回归模型为:y=a×exp(-bx);胖大海幼树幼苗更新密度受草本盖度和灌木盖度因素综合作用影响,回归关系符合模型:y=a+b_1x_1+b_2x_2+c_1x_1~2+c_2x_2~2+dx_1x_2,灌木盖度低等级和草本盖度<30%,幼树幼苗密度最高值为2 500~3 000株/hm^2,灌木盖度增高和草本盖度为80%以上,密度为500株/hm^2以下,灌木草本盖度增加以及灌木高度较低不利于胖大海幼树幼苗的更新。因此,胖大海天然更新培育或人工林经营中,应注意清除灌木、草本,为胖大海幼树幼苗生长提供适宜的环境,促进胖大海幼树幼苗存活与生长。 | Pham Van Huong 陈昌雄 张巧巧 Hoang Van Tung 范先明 Nguyen Huu Duy | 2016 | 西南林业大学学报(自然科学)2016，36，4： | 5 |
| 5 | A THREE-PARAMETER FAULT-DETECTION SOFTWARE RELIABILITY MODEL WITH THE UNCERTAINTY OF OPERATING ENVIRONMENTS显示文摘同样质量增加了的为系统的要求,对的需要高,系统可靠性也正在增加。软件系统是极其重要的,以提高的可靠性和稳定性,为提供高质量为顾客的服务。因为软件系统的复杂性,然而,软件开发能费时间、昂贵。许多统计模型在过去的年里被开发了估计软件可靠性。在这份报纸,我们与操作环境的无常建议一个新三参数的差错察觉软件可靠性模型。建议模型的明确的吝啬的值函数解决方案被介绍。例子被介绍给基于三说明建议模型和几个存在非同类的泊松进程(NHPP ) 模型的 goodness-of-fit 从软件应用程序收集的失败数据设定。建议模型适合的结果表演显著地好与其它存在 NHPP 基于三当模特儿比标准象均方差(MSE ) 那样,预兆的比率风险(PRR ) ,和预兆的力量(PP ) 。 | Kwang Yoon Song In Hong Chang Hoang Pham | 2017 | Journal of Systems Science and Systems Engineering2017，26，1： | 4 |
| 6 | Univector field method-based multi-agent navigation for pursuit problem in obstacle environments显示文摘The pursuit problem is a well-known problem in computer science. In this problem, a group of predator agents attempt to capture a prey agent in an environment with various obstacle types, partial observation, and an infinite grid-world. Predator agents are applied algorithms that use the univector field method to reach the prey agent, strategies for avoiding obstacles and strategies for cooperation between predator agents. Obstacle avoidance strategies are generalized and presented through strategies called hitting and following boundary(HFB); trapped and following shortest path(TFSP); and predicted and following shortest path(PFSP). In terms of cooperation, cooperation strategies are employed to more quickly reach and capture the prey agent. Experimental results are shown to illustrate the efficiency of the method in the pursuit problem. | Le Pham Tuyen Hoang Huu Viet Sang Hyeok An Seung Gwan Lee Dong-Han Kim Tae Choong Chung | 2017 | Journal of Central South University2017，24，4： | 3 |
| 7 | Indications for and techniques of keratoplasty at Vietnam National Institute of Ophthalmology显示文摘AIM:To report the indications for and techniques of corneal transplantation at Vietnam National Institute of Ophthalmology(VNIO) over a period of 12y(2002-2013).· METHODS:Records of patients who had undergone corneal transplantation at VNIO from January 1,2002 to January 1,2014 were reviewed to determine the indication for and type of corneal transplant performed.Patient age,gender,indication for corneal transplantation and surgical technique were recorded and analyzed.· RESULTS:Corneal transplantation were underwent in1390 eyes of 1278 patients with a mean age of 44.9±18.1y during the period under review.The most common indication was infectious corneal ulcer(n =670;48.2%),followed by corneal scar(n =333,24.0%),corneal dystrophy(n=138,9.9%) and failed graft(n=112,8.1%).Nearly all procedures performed were penetrating keratoplasty(n=1300,93.5%),with a few lamellar keratoplasty procedures performed:lamellar keratoplasty(n=52,3.7%),Descemet's stripping automated endothelial keratoplasty(n =27,1.9%) and deep anterior lamellar keratoplasty(n =11,0.8%).· CONCLUSION:While the most common indication for keratoplasty was infectious keratitis,nearly all indications for corneal transplantation were managed with penetrating keratoplasty.However,lamellar keratoplasty techniques,including deep anterior lamellar keratoplasty and Descemet's stripping automated endothelial keratoplasty,are being performed with increasing frequency for isolated stromal and endothelial disorders,respectively. | Pham Ngoc Dong Truong Nhu Han Anthony J.Aldave Hoang Thi Minh Chau | 2016 | International Journal of Ophthalmology(English edition)2016，9，3： | 3 |
| 8 | Stock-Price Forecasting Based on XGBoost and LSTM显示文摘Using time-series data analysis for stock-price forecasting(SPF)is complex and challenging because many factors can influence stock prices(e.g.,inflation,seasonality,economic policy,societal behaviors).Such factors can be analyzed over time for SPF.Machine learning and deep learning have been shown to obtain better forecasts of stock prices than traditional approaches.This study,therefore,proposed a method to enhance the performance of an SPF system based on advanced machine learning and deep learning approaches.First,we applied extreme gradient boosting as a feature-selection technique to extract important features from high-dimensional time-series data and remove redundant features.Then,we fed selected features into a deep long short-term memory(LSTM)network to forecast stock prices.The deep LSTM network was used to reflect the temporal nature of the input time series and fully exploit future con-textual information.The complex structure enables this network to capture more stochasticity within the stock price.The method does not change when applied to stock data or Forex data.Experimental results based on a Forex dataset covering 2008–2018 showed that our approach outperformed the baseline autoregressive integrated moving average approach with regard to mean absolute error,mean squared error,and root-mean-square error. | Pham Hoang Vuong Trinh Tan Dat Tieu Khoi Mai Pham Hoang Uyen Pham The Bao | 2022 | Computer Systems Science & Engineering2022，40，1： | 2 |
| 9 | Development of a PARCS/Serpent model for neutronics analysis of the Dalat nuclear research reactor显示文摘Cross-sectional homogenization for full-core calculations of small and complex reactor configurations,such as research reactors,has been recently recognized as an interesting and challenging topic.This paper presents the development of a PARCS/Serpent model for the neutronics analysis of a research reactor type TRIGA Mark-II loaded with Russian VVR-M2 fuel(known as the Dalat Nuclear Research Reactor or DNRR).The full-scale DNRR model and a supercell model for a shim/safety rod and its surrounding fuel bundles with the Monte Carlo code Serpent 2 were proposed to generate homogenized fewgroup cross sections for full-core diffusion calculations with PARCS.The full-scale DNRR model with Serpent 2 was also utilized as a reference to verify the PARCS/Serpent calculations.Comparison of the effective neutron multiplication factors,radial and axial core power distributions,and control rod worths showed a generally good agreement between PARCS and Serpent 2.In addition,the discrepancies between the PARCS and Serpent 2 results are also discussed.Consequently,the results indicate the applicability of the PARCS/Serpent model for further steady state and transient analyses of the DNRR. | Viet-Phu Tran Kien-Cuong Nguyen Donny Hartanto Hoai-Nam Tran Vinh Thanh Tran Van-Khanh Hoang Pham Nhu Viet Ha | 2021 | Nuclear Science and Techniques2021，32，2： | 2 |
| 10 | 越南基巧红宝石中的包裹体及其成因显示文摘展示了对越南基巧红宝石中包裹体的研究成果。用光学显微镜检测了这些包裹体的特征。采用拉曼散射法和扫描电子探针分析了包裹体的成分。在该类红宝石中发现了锐钛矿、红柱石、钙长石、磷灰石、黑云母、一水软铝石、板钛矿、方解石、刚玉、硬水铝石、白云石、石墨、珍珠云母、白云母、金云母、黄铁矿、金红石、锆石、黝帘石包裹体组合。描述了该类红宝石多相包裹体中气-液相与负晶的成分,讨论了主晶红宝石的形成条件。 | Pham Van Long Hoang Quang Vinh Nguyen Xuan Nghia 闫晨 | 2004 | 宝石和宝石学杂志2004，6，3： | 2 |
| 11 | Locally weighted learning based hybrid intelligence models for groundwater potential mapping and modeling: A case study at Gia Lai province, Vietnam显示文摘The groundwater potential map is an important tool for a sustainable water management and land use planning,particularly for agricultural countries like Vietnam.In this article,we proposed new machine learning ensemble techniques namely AdaBoost ensemble(ABLWL),Bagging ensemble(BLWL),Multi Boost ensemble(MBLWL),Rotation Forest ensemble(RFLWL)with Locally Weighted Learning(LWL)algorithm as a base classifier to build the groundwater potential map of Gia Lai province in Vietnam.For this study,eleven conditioning factors(aspect,altitude,curvature,slope,Stream Transport Index(STI),Topographic Wetness Index(TWI),soil,geology,river density,rainfall,land-use)and 134 wells yield data was used to create training(70%)and testing(30%)datasets for the development and validation of the models.Several statistical indices were used namely Positive Predictive Value(PPV),Negative Predictive Value(NPV),Sensitivity(SST),Specificity(SPF),Accuracy(ACC),Kappa,and Receiver Operating Characteristics(ROC)curve to validate and compare performance of models.Results show that performance of all the models is good to very good(AUC:0.75 to 0.829)but the ABLWL model with AUC=0.89 is the best.All the models applied in this study can support decision-makers to streamline the management of the groundwater and to develop economy not only of specific territories but also in other regions across the world with minor changes of the input parameters. | Hoang Phan Hai Yen Binh Thai Pham Tran Van Phong Duong Hai Ha Romulus Costache Hiep Van Le Huu Duy Nguyen Mahdis Amiri Nguyen Van Tao Indra Prakash | 2021 | Geoscience Frontiers2021，12，5： | 1 |
| 12 | 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 |
| 13 | Characterization and activity of Fe-ZSM-5 catalysts for the total oxidation of phenol in aqueous solutions显示文摘 | Nguyen Huu Phu Tran Thi Kim Hoa Nguyen Van Tan Hoang Vinh Thang Pham Le Ha | 2001 | Applied Catalysis B Environmental2001，，4： | 1 |
| 14 | Availability and maintenance of series systems subject to imperfect repair and correlated failure and repair显示文摘 | Wang Hong-zhou Pham Hoang | 2006 | European Journal of Operational Research2006，174，3： | 1 |
| 15 | Optimal (t, T) Op- portunistic Maintenance of a k-out-of-n:G System with Imperfect PM and Partial Failure 显示文摘 | Hoang Pham WANG Hong-zhou | 2000 | Naval Research Logistics2000，47，3： | 1 |
| 16 | A software cost model with warranty cost, error removal times and risk costs显示文摘 | Xuemei Zhang Hoang Pham | 1998 | IIE Transactions1998，，12： | 1 |
| 17 | A software cost model with warranty and risk costs显示文摘 | PHAM Hoang Zhang Xue-mei | | 0，，01： | 1 |
| 18 | 高校教师胜任力评价方法研究综述显示文摘伴随着我国教育事业和高校的不断发展、教育事业和高校的不断改革以及高校从业人员晋升机制的不断发展和完善,不同类型高校以及高校内部存在着多种不同的人员晋升和测评机制。高校教师作为高校的核心力量,其胜任力关系到高校的发展和前景,因此对高校教师的胜任力进行评价非常必要。本文对目前关于高校教师胜任力的研究进行了综述,并对其中存在的问题进行了说明。 | NGUYEN Thai Hoc PHAM Duc Hoang NGYTEN Tho Bon | 2016 | 河北企业2016，0，10： | 1 |
| 19 | NHPP software reliability and cost models with testing eoverage 显示文摘 | Hoang Pham Zhang Xuemei | 2003 | European Journal of Operational Research2003，145，： | 1 |
| 20 | a-Amylase and protein tyrosine phosphatase 1B inhibitory of some vietnamese me- dicinal plants used to treat diabetes 显示文摘 | Tran MH Hoang DM Pham THM | 2007 | Nat Prod Sci2007，13，4： | 1 |
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