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| 1 | 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 |
| 2 | Clinical, epidemiological and virological features of dengue virus infections in vietnamese patients presenting to primary care facilities with acute undifferentiated fever显示文摘 | Khoa T.D. Thai Hoang Lan Phuong Tran Thi Thanh Nga Phan Trong Giao Le Quoc Hung Nguyen Van Nam Tran Quang Binh Cameron Simmons Jeremy Farrar Tran Thinh Hien H. Rogier van Doorn Menno D. de Jong Peter J. de Vries | 2010 | Journal of Infection2010，，： | 1 |
| 3 | Hybrid planar Hall-magnetoresistance sensor based on tilted cross-junction 显示文摘 | Tran Quang Hung Jong-Ryul Jeong Dong-Young Kim | 2009 | Journal of Physics D: Applied Physics2009，42，： | 1 |
| 4 | High field-sensitivity planar Hall sensor based on NiFe/Cu/IrMn trilayer structure 显示文摘 | Tran Quang Hung Sunjong Oh Brajalal Sinha | 2010 | J Appl Phys2010，，： | 1 |
| 5 | Defatted black soldier fly (Hermetia illucens) in pikeperch (Sander lucioperca) diets: Effects on growth performance, nutrient digestibility, fillet quality, economic and environmental sustainability显示文摘The use of insect meal in aquafeed formulations has recently gained attention.Detailed knowledge about the inclusion levels for pikeperch(Sander lucioperca),a promising candidate for intensive aquaculture in Europe remains,however,fragmented.In the present study,4 isoproteic(45%dry matter)and isoenergetic(21 MJ/kg)diets were formulated,including a control diet(H0)containing 30%fishmeal(FM)on an as-fed basis and the other 3 diets in which FM protein was replaced by defatted black soldier fly(Hemetia illucens)meal(HIM)at 25%,50%,and 100%(diet abbreviation H9,H18 and H36,corresponding to an inclusion level of 9%,18%and 36%,respectively).The feeding trial was performed in triplicate groups of 50 juvenile pikeperch(mean weight,68.7 g)fed with experimental diets for 84 d during which the growth performance,nutrient digestibility,fillet quality and economic and environmental sustainability of rearing pikeperch were evaluated.Our findings indicated that pikeperch in H0,H9,and H18 groups displayed better results regarding growth performance indices,except for survival rate where no significant difference among groups was recorded(P?0.642).A significantly lower organ-somatic index,including hepatosomatic,viscerosomatic and perivisceral fat index,was found in fish in H18 groups than other groups(P<0.05).Inclusion of HIM affected the digestibility of the nutrients and resulted in an almost linear reduction in the apparent digestibility coefficient of dry matter and protein.Concerning the fillet quality,dietary HIM negatively affected the protein and ash contents of the fish fillets,while the crude fat remained unchanged.Dietary HIM did not significantly modify total saturated,monounsaturated and polyunsaturated fatty acids in the fillets of fed pikeperch(P>0.05)but did reduce total n-3 fatty acids(P?0.001)and increased total n-6(P<0.001).Increasing inclusion levels of HIM reduced the environmental impacts associated with fish in-to-fish out ratio but entailed heavy burdens on energy use and eutrophication.Low and moderate inclusion levels of HIM did not negatively affect land use and water use compared to an HIM-free diet(P>0.05).The addition of HIM at a level as low as 9%elicited a similar carbon footprint to that of the control diet.The economic conversion ratio and economic profit index were negatively affected at increased insect meal inclusion levels.This study has shown that the incorporation of HIM in feed formulations for pikeperch is feasible at inclusion levels of 18%without adverse effects on growth performance parameters.The feasibility also highlighted the environmental benefits associated with land use and marine resources required to produce farmed fish. | Vlastimil Stejskal Hung Quang Tran Markéta Prokesová Mahyar Zare Tatyana Gebauer Tomas Policar Christian Caimi Francesco Gai Laura Gasco | 2023 | Animal Nutrition2023，，1： | 1 |
| 6 | 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 |
| 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 |
| 8 | An Analytical Approach for Nonlinear Buckling Analysis of Torsionally Loaded Sandwich Carbon Nanotube Reinforced Cylindrical Shells with Auxetic Core显示文摘The main aim of this paper is to present an analytical approach on the postbuckling for torsionally loaded sandwich carbon nanotube(CNT)reinforced cylindrical shells with the auxetic core.The considered shells consist of three layers,external and internal CNT reinforced layers,and the auxetic lattice core made by isotropic material.The homogenization model for honeycomb auxetic lattice core is utilized,and the equilibrium equations are formulated based on the nonlinear Donnell’s thin shell theory with von Karman geometrical nonlinearities.The three terms of deflection are considered,the Airy’s stress function and Galerkin’s method are utilized,the explicit expression of critical buckling of torsionally loaded shells and load-deflection expression of postbuckling states are achieved.The effects of two carbon nanotube reinforced layers,the auxetic core layer,the volume fraction of carbon nanotube on the torsional buckling behavior are examined and remarked. | Dang Thuy Dong Nguyen Thi Phuong Vu Hoai Nam Le Ngoc Ly Nguyen Van Tien Vu Minh Duc Tran Quang Minh Vu Tho Hung Nguyen Thi Huong Giang | 2023 | Advances in Applied Mathematics and Mechanics2023，15，2： | 0 |
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