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

... VNU Journal of Science, Mathematics - Physics 24 (2008) 36-41 36 Determination of the annual beta dose by meaming beta activity using the liquid scintillation technique Nguyen Quang ... 1. the measurement of the gamma dose rate using the radiometer CΡΠ-68-01. This paper presents a new method to evaluate the annual beta dose (D β )by mea...

Ngày tải lên: 13/02/2014, 04:20

... 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 ... 6.25) by the Kjeldhal method after acid digestion, crude lipid by the Soxhlet method. The determination of chromium III (trivalent) that involves digestion of or...

Ngày tải lên: 25/02/2014, 10:20

... change in the evaluated level by the original number of erroneous characters 2 Table 4-3 The rate of change in the evaluated level by the original number of erroneous characters involved in the ... Preparation of Error-Patterns: As the threshold value for the frequency of the occurrence, we employed a value of not less than 2, therefore we obtained 629...

Ngày tải lên: 20/02/2014, 18:20

... context. label-1: is the source word of the aligned word pair or the word class of the source word ( ). label-2: is one word of the aligned word pair or the word class to which these words belong ( ). Using ... is composed by three items: The source word aligned to . The context in which the aligned pair appears. The number of occurrences of the event in t...

Ngày tải lên: 20/02/2014, 18:20

... On the other hand, there are not publish in here. Therefore, new report should be prepared for the conservation of plant species. * The Research Area is located within the borders of the ... herbarium techniques. Subsequently, the Flora of Vietnam [1-4] and the other related floras [5-9] and monographs [10-12] were used in the identification of the specimens....

Ngày tải lên: 12/02/2014, 10:20

... J because of the presence of the Fe 3 Pt. 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 ... 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 str...

Ngày tải lên: 13/02/2014, 03:20

... and because of the heteroepitaxial growth of films WO 3 in which the parameters of plane ITO (440) are slightly larger than the ones of WO 3 planes. The relation between shifts of XRD peaks ... 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 WO...

Ngày tải lên: 13/02/2014, 03:20

... in the paper [6]. By the small elastoplastic deformation theory and by the flow theory, this problem again has been studied in [2] and [4]. Basing on the theory of elastoplastic p rocesses the ... mentioned problem has been solved by approach simulation of instability form of the cylinder (see [1],[5]). In this paper, the solution of problem in the real bending fo...

Ngày tải lên: 13/02/2014, 04:20

... analyzed the data about the Dien Bien - Lai Chau fault zone activities, the geological structure of the basin, as well as the theory of basin-forming regime to figure out the mechanism of formation ... to the electronic and seismological cross-sections, there is a shattered zone developed along the long axis of the basin. The rock of the east side has be...

Ngày tải lên: 13/02/2014, 12:20

... 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 ... A series of 8 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...

Ngày tải lên: 13/02/2014, 12:20