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| 1 | Flow Visualization of Rhinoceros Beetle (Trypoxylus dichotomus) in Free Flight显示文摘 | Tien Van Truong Tuyen Quang Le Hieu Trung Tran Hoon Cheol Parka Kwang Joon Yoon Doyoung Byun | 2012 | Journal of Bionic Engineering2012,9,3: | 4 |
| 2 | Two- and Three-Dimensional Simulations of Beetle Hind Wing Flapping during Free Forward Flight显示文摘 | Tuyen Quang Le Tien Van Truong Hieu Trung Tran Soo Hyung Park Jin Hwan Ko Hoon Cheol Park Kwang Joon Yoon Doyoung Byun | 2013 | Journal of Bionic Engineering2013,10,3: | 2 |
| 3 | 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 |
| 4 | New Approaches to Designing Public Key Cryptosystems Using One-Way Functions and Trapdoors in Finite Groups显示文摘 | Magliveras Stinson Tran van Trung | | Journal of Cryptology0,,4: | 1 |
| 5 | Calculation of the friction coefficient of Cu matrix compos- ite reinforced by carbon nanotubes 显示文摘 | Pham Van Trinh Tran Bao Trung Nguyen Ba Thang | 2010 | Computational Materials Science2010,49,: | 1 |
| 6 | A novel finite element formulation for static bending analysis of functionally graded porous sandwich plates显示文摘This article aims to propose a finite element formulation based on Quasi-3D theory for the static bending analysis of functionally graded porous(FGP)sandwich plates.The FGP sandwich plates consist of three layers including the bottom skin of homogeneous metal,the top skin of fully ceramic and the FGP core layer with uneven porosity distribution.A quadrilateral(Q4)element with nine degrees of freedom(DOFs)per node is derived and employed in analyzing the static bending response of the plate under uniform and/or sinusoidally distributed loads.The accuracy of the present finite element formulation is verified by comparing the obtained numerical results with the published results in the literature.Then,some numerical examples are performed to examine the effects of the parameters including power-law index k and porosity coefficient on the static bending response of rectangular FGP sandwich plates.In addition,a problem with a complicated L-shape model is conducted to illustrate the superiority of the proposed finite element method. | Van Chinh NGUYEN Trung Thanh TRAN Trung NGUYEN-THOI Quoc-Hoa PHAM | 2022 | Frontiers of Structural and Civil Engineering2022,16,12: | 1 |
| 7 | Secure frame proof codes,key distribution patterns,group testing algorithms and related structures显示文摘 | Stinson D R Tran van Trung Wei R | 2000 | J Statist Plann Inference2000,86,: | 1 |
| 8 | Calculation of the friction coefficient of Cu matrix com- posite reinforced by carbon nanotubes 显示文摘 | Pham Van Trinh Tran Bao Trung Nguyen Ba Thang | 2010 | COMPUTA- TIONAL MATERIALS SCIENCE2010,49,1: | 1 |
| 9 | Calculation of the friction coefficient of Cu matrix composite reinforced by carbon nanotubes显示文摘 | Pham Van Trinh Tran Btoo Trung Nguyen Ba Thang | 2010 | Comput Mater Sci2010,49,4: | 1 |
| 10 | Tungsten-based nanocatalysts with different structures for visible light responsive photocatalytic degradation of bisphenol A显示文摘Environmental pollution,such as water contamination,is a critical issue that must be absolutely addressed.Here,three different morphologies of tungsten-based photocatalysts(WO_(3)nanorods,WO_(3)/WS_(2)nanobricks,WO_(3)/WS_(2)nanorods)are made using a simple hydrothermal method by changing the solvents(H_(2)O,DMF,aqueous HCl solution).The as-prepared nanocatalysts have excellent thermal stability,large porosity,and high hydrophilicity.The results show all materials have good photocatalytic activity in aqueous media,with WO_(3)/WS_(2)nanorods(NRs)having the best activity in the photodegradation of bisphenol A(BPA)under visible-light irradiation.This may originate from increased migration of charge carriers and effective prevention of electron–hole recombination in WO_(3)/WS_(2)NRs,whereby this photocatalyst is able to generate more reactive·OH and·O_(2)^(–)species,leading to greater photocatalytic activity.About 99.6% of BPA is photodegraded within 60 min when using 1.5 g/L WO_(3)/WS_(2)NRs and 5.0 mg/L BPA at pH 7.0.Additionally,the optimal conditions(pH,catalyst dosage,initial BPA concentration)for WO_(3)/WS_(2)NRs are also elaborately investigated.These rod-like heterostructures are expressed as potential catalysts with excellent photostability,efficient reusability,and highly active effectivity in different types of water.In particular,the removal efficiency of BPA by WO_(3)/WS_(2)NRs reduces by only 1.5% after five recycling runs and even reaches 89.1%in contaminated lake water.This study provides promising insights for the nearly complete removal of BPA from wastewater or different water resources,which is advantageous to various applications in environmental remediation. | Hai Bang Truong Thi Thu Loan Doan Nguyen Tien Hoang Nguyen Van Tam Minh Kim Nguyen Le Gia Trung Jin Seog Gwag Nguyen Tien Tran | 2024 | Journal of Environmental Sciences2024,,5: | 0 |
| 11 | The Process of Immobilization of ZnO Nanorods Surface with Galactose Oxidase显示文摘 | La Phan Phtrong Ha Ngo Van Chi Quang Tran Quang Trung | 2017 | Journal of Pharmacy and Pharmacology2017,5,10: | 0 |
| 12 | Vibration characteristics of sandwich plates with an auxetic honeycomb core and laminated three-phase skin layers under blast load显示文摘In this article,vibration characteristics of sandwich plates with an auxetic honeycomb core and laminated three-phase skin layers subjected to blast load are studied.Higher-order ES-MITC3 element based on higher-order shear deformation theory(HSDT)to achieve the governing equations.The sandwich plates with the ultra-light feature of the auxetic honeycomb core layer(negative Poisson’s ratio)and reinforced by two laminated three-phase skin layers.The obtained results in our work are compared with other previously published to confirm accuracy and reliability.In addition,the effects of parameters such as geometrical and material parameters on the vibration characteristics of sandwich plates with an auxetic honeycomb core and laminated three-phase skin layers are fully investigated. | Quoc-Hoa Pham Van Ke Tran Trung Thanh Tran | 2023 | Defence Technology(防务技术)2023,24,6: | 0 |
| 13 | Evaluation of the Ability to Apply Near-Infrared Spectroscopy on Direct Assay of Acyclovir in Tablets显示文摘 | Le Dinh Chi Tran Viet Hung Bui Van Trung Doan Cao Son | 2017 | Journal of Pharmacy and Pharmacology2017,5,12: | 0 |
| 14 | Ensemble machine learning models based on Reduced Error Pruning Tree for prediction of rainfall-induced landslides显示文摘In this paper,we developed highly accurate ensemble machine learning models integrating Reduced Error Pruning Tree(REPT)as a base classifier with the Bagging(B),Decorate(D),and Random Subspace(RSS)ensemble learning techniques for spatial prediction of rainfallinduced landslides in the Uttarkashi district,located in the Himalayan range,India.To do so,a total of 103 historical landslide events were linked to twelve conditioning factors for generating training and validation datasets.Root Mean Square Error(RMSE)and Area Under the receiver operating characteristic Curve(AUC)were used to evaluate the training and validation performances of the models.The results showed that the single REPT model and its derived ensembles provided a satisfactory accuracy for the prediction of landslides.The D-REPT model with RMSE=0.351 and AUC=0.907 was identified as the most accurate model,followed by RSS-REPT(RMSE=0.353 and AUC=0.898),B-REPT(RMSE=0.396 and AUC=0.876),and the single REPT model(RMSE=0.398 and AUC=0.836),respectively.The prominent ensemble models proposed and verified in this study provide engineers and modelers with insights for development of more advanced predictive models for different landslide-susceptible areas around the world. | Binh Thai Pham Abolfazl Jaafari Trung Nguyen-Thoi Tran Van Phong Huu Duy Nguyen Neelima Satyam Md Masroor Sufia Rehman Haroon Sajjad Mehebub Sahana Hiep Van Le Indra Prakash | 2021 | International Journal of Digital Earth2021,14,5: | 0 |
| 15 | Free vibration analysis of functionally graded porous curved nanobeams on elastic foundation in hygro-thermo-magnetic environment显示文摘Herein,a two-node beam element enriched based on the Lagrange and Hermite interpolation function is proposed to solve the governing equation of a functionally graded porous(FGP)curved nanobeam on an elastic foundation in a hygro–thermo–magnetic environment.The material properties of curved nanobeams change continuously along the thickness via a power-law distribution,and the porosity distributions are described by an uneven porosity distribution.The effects of magnetic fields,temperature,and moisture on the curved nanobeam are assumed to result in axial loads and not affect the mechanical properties of the material.The equilibrium equations of the curved nanobeam are derived using Hamilton’s principle based on various beam theories,including the classical theory,first-order shear deformation theory,and higher-order shear deformation theory,and the nonlocal elasticity theory.The accuracy of the proposed method is verified by comparing the results obtained with those of previous reliable studies.Additionally,the effects of different parameters on the free vibration behavior of the FGP curved nanobeams are investigated comprehensively. | Quoc-Hoa PHAM Parviz MALEKZADEH Van Ke TRAN Trung NGUYEN-THOI | 2023 | Frontiers of Structural and Civil Engineering2023,17,4: | 0 |
| 16 | Isogeometric analysis for free vibration of bidirectional functionally graded plates in the fluid medium显示文摘This paper for first time proposes an isogeometric analysis (IGA) for free vibration response of bi-directional functionally graded (BDFG) rectangular plates in the fluid medium. Material properties of the BDFG plate change in both the thickness and length directions via power-law distributions and Mori-Tanaka model. The governing equation of motion of BDFG plate in the fluid-plate system is formulated basing on Hamilton's principle and the refined quasi three-dimensional (3D) plate theory with improved function f(z). The fluid velocity potential is derived from the boundary conditions of the fluid-plate system and is used to determine the added mass. The discrete system of equations is derived from the Galerkin weak form and numerically analyzed by IGA. The accuracy and reliability of the proposed solutions are verified by comparing the obtained results with those published in the literature. Moreover, the effects of the various parameters such as the interaction boundary condition, geometric parameter, submerged depth of plate, fluid density, fluid level, and the material volume control coefficients on the free vibration behavior of BDFG plate in the fluid medium are investigated in detail. Some major findings regarding the numerical results are withdrawn in conclusions. | Quoc-Hoa Pham Phu-Cuong Nguyen Van Ke Tran Trung Nguyen-Thoi | 2022 | Defence Technology(防务技术)2022,18,8: | 0 |