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Tài liệu Báo cáo " Flora of the Research Forest in Yen Tu, Quang Ninh " docx
... by 577 (86.0%) of species, 340 (85.0%) of genus and 110 (83.0%) of family, meanwhile the Monocotyledonae are included by 93 (14.0%) of species, 58 (15.0%) of genus and 23 (17.0%) of family, respectively ... and Planning institute) The most of the plant specimens are kept at the Herbarium of University Forest and other are kept at the Herbarium of National University of Hanoi (HNU) The flora list and ... Number of families No % 1.3 15 9.7 2.6 133 86.4 154 100 Number of genera No % 0.5 19 4.5 1.4 398 93.6 425 100 Number of species No % 1.2 34 4.7 1.1 670 93.0 721 100 Table The distribution of the...
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Tài liệu Báo cáo " Effecting of medium composition on biomass and ginsenoside production in cell suspension culture of Panax vietnamensis Ha et Grushv " doc
... in provious cultures of Panax ginseng adventitious roots [7] Effects different strength of MS medium on biomass and ginsenoside production Table Effect of different strength of MS medium on biomass ... nitrogen concentration of 30 mM The highest ginsenoside production was (7.35 mg/g DW) at initial medium nitrogen concentration of 30 mM after 25 days of culture Table Effect of different nitrogen ... Production of ginseng saponin in tissue culture of ginseng (P ginseng C A Meyer), Russ J Plant Physiol 40 (1994) 784 [12] J.J Zhong, S.J Wang, Effects of nitrogen source on the production of ginseng...
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Tài liệu Báo cáo " Occurrences of microcystis spp. and microcystins in some cyanobacterial blooms in freshwater bodies in Vietnam " docx
... sub-samples of 100 mL were collected and fixed by Lugol acid solution The ones of 1.5 mL were collected in Eppendorf tubes and were kept at -18 ºC for toxin analysis Examination of samples: Both ... inside the range of the standard curve Results and discussion Species composition of microcystis spp in study waters In natural bloom samples collected, we identified six species of Microcystis ... Abbreviations: (+) present; (-) not present Microcystis biomasses The results of quantitative analyses of each species and total biomass of bloom samples collected from studies sited from 20-30 Autumn, 2008...
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Tài liệu Báo cáo " Effect of Sweet potato (Ipomoea batatas (L.) Lam) leaf extract on hypoglycaemia, blood insulin secretion, and key carbohydrate metabolic enzymes in expermentally obese and STZ-induced diabetic mice " pptx
... hypoglycemic effects on the basis of the key enzymes activity of carbohydrate metabolism The purpose of this study is to investigate hypolipidemic and hypoglycaemic effects of extract fractions from ... Development of HFD-fed and STZ-induced type diabetic mice After weeks of dietary manipulation, a subset of the mice from each dietary group was injected intraperitoneally (i.p) STZ with dose of 120mg ... effect of the EtOAc fraction was 25.74%, higher as compared to other fractions 3.4 Effect of ethyl acetate fraction on lipid parameters of obese-diabetic mice Table Hypolipidemic effect of ethyl...
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Tài liệu Báo cáo " Deodorization of food wastewater by using strong oxidants " pdf
... was varied in range of 3.2 to 4.8 g/l with 0.25 g/l of CaOCl2 added The effect of concentration of CaO to the odor of wastewater was shown in Table When the concentration of CaO increase, wastewater ... precipitation of Ca2+ with soluble pollutants Effect of CaOCl2 concentration Wastewater was added with a range of 40 200 mg/l of CaOCl2 with fixed 4.4 g/l of CaO From Table we can see that concentration of ... gram/l of CaO or 120 milligram/l of CaOCl2, 2.4 milligram/l of KMnO4 or 1.6 ml/l of H2O2 can be useful separately After combination of the economic benefit and optimal conditions, we suggest that CaOCl2...
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Tài liệu Báo cáo "Effect of the preparation conditions on the properties of Fe-Pt nanoparticles produced by sonoelectrodeposition " pptx
... the current was turned off for a fixed duration toff of 0.5 s During ton, FePt nanoparticles were deposited on the surface of the electrode When the current was switched off, an ultrasound was ... has the potential benefit of combining sonochemistry with electrochemistry Some of these beneficial effects include acceleration of mass transport, cleaning and degassing of the electrode surface, ... magnetization of the unannealed particles was about few emu/g and the coercivity was 20 – 80 Oe The low value of Ms of the as-prepared nanoparticles may be explained by the oxidation or hydroxidation of...
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Tài liệu Báo cáo " Survey of WO3 thin film structure built on ito/glass substrates by the Raman and xrd spectroscopies" doc
... does and because of the heteroepitaxial growth of films WO3 in which the parameters of plane ITO (440) are slightly larger than the ones of WO3 planes The relation between shifts of XRD peaks and ... direction of o-WO3, vacant tunnels achieved the largest size of WO3 – perovskite In this research, all the peaks of WO3 film in XRD spectra are shifted to smaller diffraction angles than these ones of ... (020), like a shoulder of (200) font With an increase in the thickness from 150 nm to 350 nm, XRD spectra expose a gradual decrease of the magnitude of peak (200) and a raise of peak (001) Moreover,...
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Tài liệu Báo cáo " STABILITY OF THE ELASTOPLASTIC THIN ROUND CYLINDRICAL SHELLS SUBJECTED TO TORSIONAL MOMENT AT TWO EXTREMITIES " pptx
... form of solution in [3], we find the real deflection δw in form πx n cos (y + γx), (3.1) δw = A1 cos L R where γ is the tangent of skew angle of summit of waves in comparison with the generatrix of ... stability of a plate under shear forces, taking into account its real bending form, Vietnam Journal of Mech, NCST of Vietnam, Vol 23, No 1(2001), pp 6-16 G.Gerard, Plastic stability theory of thin ... theory of elasto-plastic processes when the thickness of cylindrical shell is greater Because these don’t exactly describe mechanical characteristics, investigating must be based on the theory of...
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Tài liệu Báo cáo " Determination of the annual beta dose by meaming beta activity using the liquid scintillation technique " ppt
... CPΠ-68-01 Proceeding of the 14th Conference, University of Mining and Geology, Hanoi, 17th November (2004) 50 [7] Ha Van Tan (Chief Ed.), Archaeology of Viet Nam, The Publisher of Social Science, ... three counting The annual dose of beta (mGy/yr) was evaluated from: Dβ = 2,22.10-3.Cβ and that of gamma (mGy/yr) from: Dγ = 0.1752.Iγ, where Cβ is the specify activity of beta (Bq/kg), and (Iγ) is ... method for evaluation of the paleodose The paleodose P that the sample has received during antiquity is usually greater than Q because of the pre-dose effects [1,2] The evaluation of this correction...
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Tài liệu Báo cáo " Mechanism of forming the Dien Bien basin " pdf
... depth of 160m in the central part of basin This is a product of tectonic activities of the Dien Bien - Lai Chau fault zone in Pliocene-Quaternary time and is one of the bases for determining age of ... formation of the Dien Bien basin The geological structure of the Dien Bien basin is composed of main parts: the basement consists of Triassic sedimentary bedrock and the cover consists of NeogeneQuaternary ... thesis, Institute of Geology, VAST, Hanoi, 2002 (in Vietnamese) [2] Ministry of Heavy Industry, Ministry of Construction, General Department of Geology, Report on investigation of the geological...
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Tài liệu Báo cáo " Development of system of HydrodynamicEnvironmental models for coastal area (Case study in Quang Ninh - Hai Phong region) " doc
... of them have similar shape and the result is the gathering of oils in Cat Hai area and Bach Dang estuary Figure shows diagrams of distribution of particulate concentration in water at depth of ... consists of the current velocity ( v c ) and the setting velocity ( wi ) of the corresponding oil phases Di is the diffusion coefficient of the oil phases in water environment According to the law of ... concentration can be taken as the average value of the thickness of the surface sediment So we can build the model of oil in the sediment with the laws of dynamical transformation mainly between dissolved...
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Tài liệu Báo cáo " Evaluation of ASTER Data Use in Land Use Study in the Mekong delta " pptx
... stand parameters should be possible to extract A series of scenes of ASTER of 2002 are used for this analysis This is done in the framework of the collaboration between the Centre for Remote Sensing ... by a large diversity of land use practice with a land cover of small size, the discrimination capacity of the data is essential ASTER data with a spatial resolution even of 15m are still limited ... for the detailed land use mapping of the studied area Instead of this, ASTER data provide a wide range of spectra and we assume that there exist some combinations of spectral bands in all three...
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