Tài liệu Báo cáo " Flora of the Research Forest in Yen Tu, Quang Ninh " docx

... plant, Flora, Yen Tu, Quang Ninh Research Forest. 1. Introduction This research was carried out to determine the flora of the Research Forest in Yen Tu, Quang Ninh. The vegetation of the area ... November 2006 Abstract. The vascular flora of the Research Forest in Yen Tu, Quang Ninh was assessed between 2005 and 2006. In the area under review, 721 species belonging to 425 genera and 154 ... Journal of Science, Natural Sciences and Technology 23 (2007) 194-199 194 Flora of the Research Forest in Yen Tu, Quang Ninh Nguyen Trung Thanh1,*, Phung Van Phe2, Nguyen Nghia Thin1...

Tài liệu Báo cáo "Effect of the preparation conditions on the properties of Fe-Pt nanoparticles produced by sonoelectrodeposition " pptx

... J because of the presence of the Fe3Pt. Of cause, the kink in the magnetic curves was more evident in the samples with high Fe content. In another series of samples, we fixed the current ... (H’c). In a more physically meaningful definition, the coercivity Hc may be defined as the field where the largest number of moments reverses, i.e., the maximum of the susceptibility (dM/dH). In ... The Pt peaks in the as-prepared samples are broad due to the small size of the particles. Using the Scherrer formula with the full width at half maximum of the strongest peak (111), the mean particle...

Tài liệu Báo cáo " STABILITY OF THE ELASTOPLASTIC THIN ROUND CYLINDRICAL SHELLS SUBJECTED TO TORSIONAL MOMENT AT TWO EXTREMITIES " pptx

... simulation of instability form of the cylinder (see[1],[5]). In this paper, the solution of problem in the real bending form of structure hasbeen found. We have also established the relations ... in the paper [6]. By the smallelastoplastic deformation theory and by the ﬂow theory, this problem again has beenstudied in [2] and [4]. Basing on the theory of elastoplastic p rocesses the ... equations of the stability problem2.1. Pre-buckling processAt the any moment in the pre-buckling state, we haveσ12= −p, σij=0 ∀i =1,j=2.σu=√3|σ12| =√3p. The components of the strain...

Tài liệu Báo cáo " Determination of the annual beta dose by meaming beta activity using the liquid scintillation technique " ppt

... Presently, in the ancient pottery TL dating the following steps for the determination of annual dose rate are: (i) place the thermoluminiscnece dosimeter at the field; (ii) determine the environmental ... determine the correct PDD (Pulse Decay Discriminator) setting. The optimum setting is the setting where there is equal and minimum spill of alpha pulses into the beta MCA and beta pulses into the ... shown that the more accurate the beta dose evaluation is, the more reliable is the technique of thermoluminecence dating [5,6]. Fig. 1. the measurement of the gamma dose rate using the radiometer...

Tài liệu Báo cáo " Evaluation of ASTER Data Use in Land Use Study in the Mekong delta " pptx

... different types of land cover. These combinations will be used for the classification for the land cover types for which the combination is the most discriminative. Due to the constraints of the spatial ... gives a local rise in temperature. Human activities also increase the risk of forest fires, and corridors are therefore made to protect the remaining forests. Monitoring these changes accurately ... population of 1.1 million. The land is made of deposits from the Mekong Delta. Almost half of the area has been changed from forests and agriculture into shrimp farms in the last ten years. The coastline...

Tài liệu Báo cáo " Application of the Principal Component Analysis to Explore the Relation Between land use and solid waste generation in the Duy Tien District, Ha Nam Province, Vietnam" pdf

... class="bi x0 y0 w0 h 0" alt ="" ...

Tài liệu BÁO CÁO " DETERMINATION OF THE DIGESTIBILITY OF SOME PLANT INGREDIENTS FOR GRASS CARP (Ctenopharyngodon idella) " pdf

... The ADC of dry matter, nutrients in the tested ingredient were calculated according to the following formulae: ADC of DM of test ingredient (%) = (ADC of DM of the test diet - 0.7 x ADC of ... reported in literature. This high value of ash can influence the digestibility of other nutrients of ingredients. Four experimental diets were formulated as present in table 1. After pelleting, the ... tilapia. 3.2. The digestibility of protein Table 6 shows the digestibility of protein of three plant-ingredients for grass carp. Table 5. Digestibility of dry matter of three plant - ingredients...

Tài liệu Báo cáo khoa học: The unique sites in SulA protein preferentially cleaved by ATP-dependent Lon protease from Escherichia coli ppt

... peptidefragments obtained after 3 or 30 min of incubation in the presence of ATP and after 3 h of incubation in the absence of ATP w ere also analyze d in the same way. The yields of the fragments were ... mainly in the centralregion of SulA so that the cleavage at any of these siteswould lead to rapid inactivation of the protein. As for the C-terminal region, it is interesting to note that the C-terminal ... stands for the peak number corresponding to that in Fig. 3. The numbers in parenthesis indicate the esti-mated percentage yields of each peptid e after3-min, 30-min, and 3-h incubations in the presence...

Tài liệu Báo cáo " Survey of WO3 thin film structure built on ito/glass substrates by the Raman and xrd spectroscopies" doc

... these of o-WO3. And the reason is that parameters of crystalline structure of m-WO3 are smaller than that of o-WO3 or the force constant in W-O bonds in the former is larger than in the ... about 30 – 35 nm. Moreover the annealing process and the breakage of the double bonds W = O also result in the limit of the shift to the 680 cm-1. Thus, in the films WO3/ITO 300 nm nanocrystal ... by considering the peak 802 cm-1 as a combination of two separated ones at 803 cm-1 and 797 cm-1 as shown in figure 5. Moreover, in some previous researches of other authors, there were...

Tài liệu Báo cáo " Mechanism of forming the Dien Bien basin " pdf

... as a chain of olivine, pyroxene basalt stretching along the axis of the basin. The sample taken from drill hole shows that the mineral composition of basalt mainly includes olivine and pyroxene, ... rhomboidal in shape. The process of forming this basin is related closely to the activities of the Dien Bien - Lai Chau fault zone in Neotectonic time. On analyzing information concerning the kinematics ... along the main fault in Doc Lap hill, Tom village, Muong Thanh airport [2]. The olivine basalt is also found in borehole at the depth of 160m in the central part of basin. This is a product of...

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