|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | 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 |
| 2 | 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 |
| 3 | 农田生态沟渠效能研究显示文摘传统混凝土沟渠主要使用浆砌石、钢筋混凝土等材料建造成排水沟渠,难以有效去除农田污水中的富营养化,引起河道污染~[1]。本实验在调查太湖运河沿岸农田的污染情况的基础上,设计并建造复合生态沟渠示范工程,然后根据季节差异种植复合的植物。通过观察植物生长情况研究生态沟渠的植生价值,检测生态沟渠的水质变化情况以检验农田污水富营养化的去除效能。 | Tang Van Tai Tran Ngoc Binh Tang Thi Thanh Sang Le Hong Hanh | 2017 | 黑龙江生态工程职业学院学报2017，30，5： | 3 |
| 4 | Effects of lime treatment on the microstructure and hydraulic conductivity of Héricourt clay显示文摘This study aims at evidencing the effects of lime treatment on the microstructure and hydraulic conductivity of a compacted expansive clay,with emphasis put on the effect of lime hydration and modification.For this purpose,evolutions of hydraulic conductivity were investigated for both lime-treated and untreated soil specimens over 7 d after full saturation of the specimens and their microstructures were observed at the end.Note that for the treated specimen,dry clay powder was mixed with quicklime prior to compaction in order to study the effect of lime hydration.It is observed that lime hydration and modification did not affect the intra-aggregate pores but increased the inter-aggregates pores size.This increase gave rise to an increase of hydraulic conductivity.More precisely,the hydraulic conductivity of lime-treated specimen increased progressively during the first 3 d of modification phase and stabilised during the next 4 d which correspond to a short period prior to the stabilisation phase.The microstructure observation showed that stabilisation reactions took place after 7 d.Under the effect of stabilisation,a decreasing hydraulic conductivity can be expected in longer time due to the formation of cementitious compounds. | Thanh Danh Tran Yu-Jun Cui Anh Minh Tang Martine Audiguier Roger Cojean | 2014 | Journal of Rock Mechanics and Geotechnical Engineering2014，6，5： | 3 |
| 5 | A Neural-network-based Approach to Study the Energy-optimal Hovering Wing Kinematics of a Bionic Hawkmoth Model显示文摘This paper presents the application of an artificial neural network to develop an approach to determine and study the energy-optimal wing kinematics of a hovering bionic hawkmoth model.A three-layered artificial neural network is used for the rapid prediction of the unsteady aerodynamic force acting on the wings and the required power.When this artificial network is integrated into genetic and simplex algorithms,the running time of the optimization process is reduced considerably.The validity of this new approach is confirmed in a comparison with a conventional method using an aerodynamic model based on an extended unsteady vortex-lattice method for a sinu soidal wing kinematics problem.When studying the obtained results,it is found that actual hawkmoths do not hover under an energy-optimal condition.Instead,by tilting the stroke plane and lowering the wing positions,they can compromise and expend some energy to enhance their maneuverability and the stability of their flight. | Anh Tuan Nguyen Ngoc Doan Tran Thanh Trung Vu Thanh Dong Pham Quoc Tru Vu Jae-Hung Han | 2019 | Journal of Bionic Engineering2019，16，5： | 2 |
| 6 | 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 |
| 7 | Synthesis of cation exchange resin-supported iron and magnesium oxides/hydroxides composite for nitrate removal in water显示文摘In this study,we reported on the concept and practical use of cation exchange resin(CER)for removing anions in water via pretreating the CER with metal salts.The cation exchange resinsupported iron and magnesium oxides/hydroxides composite(FeMg/CER)was synthesized and introduced as a new and potential adsorbent for selective removal of nitrate ion in the water environment.Characteristics of FeMg/CER were determined by techniques such as Fouriertransform infrared spectroscopy,scanning electron microscopy,and Xray diffraction.The results showed that FeMg/CER material had a high nitrate adsorption capacity of 200 mg NO_(3)^()·g^(1)with a fast equilibrium adsorption time of 30 min at pH 5.In addition,it had good durability of at least 10 times of regeneration,which could be applied to practical water and wastewater treatment. | Trung Thanh Nguyen Vu Anh Khoa Tran Le Ba Tran Phuoc Toan Phan Minh Tan Nguyen Long Giang Bach Surapol Padungthon Cong Khiem Ta Nhat Huy Nguyen | 2021 | Chinese Journal of Chemical Engineering2021，34，4： | 2 |
| 8 | 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 |
| 9 | 太滆运河污染源调查与分析显示文摘太滆运河是主要入太湖河流之一,在沟通太湖和滆湖方面起到了极为重要的作用。要治理太滆运河,就必须摸清运河周边污染源的存在情况,搞清楚一些主要点源污染的位置及具体污染情况,因此对太滆运河沿岸污染源进行彻底的调查就十分有必要。通过调研与观察,该研究总结了太滆运河主要污染来源,包括:工业点源污染,农业源污染及其他污染源,同时分析了污染对坏境生态的潜隐危害。 | Tran Ngoc Binh Tang Van Tai Tang Thi Thanh Sang | 2017 | 安徽农学通报2017，23，20： | 2 |
| 10 | Static and free vibration analyses of functionally graded porous variable-thickness plates using an edge-based smoothed finite element method显示文摘The main purpose of this paper is to present numerical results of static bending and free vibration of functionally graded porous(FGP) variable-thickness plates by using an edge-based smoothed finite element method(ES-FEM) associate with the mixed interpolation of tensorial components technique for the three-node triangular element(MITC3), so-called ES-MITC3. This ES-MITC3 element is performed to eliminate the shear locking problem and to enhance the accuracy of the existing MITC3 element. In the ES-MITC3 element, the stiffness matrices are obtained by using the strain smoothing technique over the smoothing domains formed by two adjacent MITC3 triangular elements sharing an edge. Materials of the plate are FGP with a power-law index(k) and maximum porosity distributions(U) in the forms of cosine functions. The influences of some geometric parameters, material properties on static bending, and natural frequency of the FGP variable-thickness plates are examined in detail. | Trung Thanh Tran Quoc-Hoa Pham Trung Nguyen-Thoi | 2021 | Defence Technology(防务技术)2021，17，3： | 2 |
| 11 | Effectiveness on post-stroke hemiplegia in patients:electroacupuncture plus cycling vs electroacupuncture alone显示文摘OBJECTIVE:To evaluate the effectiveness of cycling in combination with electroacupuncture in treatment of poststroke hemiplegia patients at National Hospital of Acupuncture,Vietnam.METHODS:The study was designed as a single-centre,outcome-assessor-blinded parallel randomised controlled trial with 120 post-stroke hemiplegia patients randomly assigned into two groups:electroacupuncture plus cycling(CT group) and electroacupuncture(AT group).Patients were assessed before and after the treatment(using muscle grading,modified Rankin,Barthel,Orgorozo scores and electromyography).Statistical Man–Whitney U test,and Fisher’s exact tests were used to compare between CT and AT groups.RESULTS:The results reported statistically significant improvement in motor function in patients suffering from hemiplegia following ischemic stroke in both CT and AT groups.Patients in CT group experienced a greater improvement compared to those in AT group including better muscle contraction(increased frequency and amplitude of electromyography and increased muscle grading scale);increased recovery(Orgogozo scale),increased independency(Barthel scale) and decreased disability(Modified Rankin scale)(P < 0.01).CONCLUSIONS:Combination with cycling training significantly improves the recovery of post-stroke patients treated with electroacupuncture. | Minh Duc Nguyen Thanh Van Tran Quoc Vinh Nguyen Ninh Khac Nguyen Son Truong Vu Luu Trong Nguyen Linh Vu Phuong Dang | 2023 | Journal of Traditional Chinese Medicine2023，43，2： | 2 |
| 12 | 高速公路路面移动激光扫描数据的自动提取显示文摘提出了一种基于体像的区域生长方法,用于高速公路环境下移动激光扫描点云的路面自动提取。该方法包括三个主要步骤:构造体素模型;采用基于体素的分割算法提取路面点;利用基于边界的分割算法细化道路边界。为了评价该方法的准确性,我们使用了高速公路平坦和颠簸高坡路面环境下的两个典型试验点的两点云数据集。该算法成功地实现了路面的高精度提取。平均召回率为99.5%,精度为96.3%,F1得分为97.9%。根据所提取的路面,提出了一种路面平整度估计框架。当将路面粗糙度图的结果与视觉图像进行比较时,得到了很好的一致性,说明了所提框架的可行性和有效性。 | TRAN Thanh Ha TAWEEP Chaisomphob | 2020 | Journal of Central South University2020，27，7： | 2 |
| 13 | Piglet Diarrhea and Technology Transfers to Prevent E. coli Infection at Small-Holder Pig Farms in Binh Dinh, Vietnam显示文摘 | Nguyen Quang Linh Hoang Nghia Duyet Tran Quang Vui Du Thanh Hang | 2014 | Journal of Agricultural Science and Technology(A)2014，4，8： | 2 |
| 14 | Direct flower neoformation from superficial tissue of small explants of Nicotiana tabacun显示文摘 | TRAN THANH VAN M | 1993 | planta1993，115，： | 1 |
| 15 | 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 |
| 16 | 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 |
| 17 | A New State Space Control Scheme for Host-gate Way Rate Control Protocol within Intranets Using ATM ABR Service 显示文摘 | Liu W Q Thanh Huu Tran Harsha Sirisena | 2002 | Computer Communications2002，25，18： | 1 |
| 18 | Preparation of bio-fuels by catalytic cracking reaction of vegetable oil sludge显示文摘 | Le Thi Hoai Nam Tran Quang Vinh Nguyen Thi Thanh Loan | 2011 | Fuel2011，90，： | 1 |
| 19 | Seismic behavior of reinforced concrete beam-column joints with vertically distributed reinforcement 显示文摘 | Li Bing Cao Thanh Ngoc Tran | 2009 | ACI Structural Journal2009，106，6： | 1 |
| 20 | 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 |
您所在的机构暂未开通此部分的功能，请联系管理员