Báo cáo " Preparation of nano-structural MnO2 in ethanol-water media coated on calcinated laterite and study of its arsenic adsorption capacity " docx

... Journal of Science, Natural Sciences and Technology 24 (2008) 227-232 227 Preparation of nano-structural MnO 2 in ethanol-water media coated on calcinated laterite and study of its arsenic adsorption ... concentration of ethanol in MnSO 4 solution and EP 2 : Percentage concentration of ethanol in KMnO 4 solution Table 1 showed strong effec...

Ngày tải lên: 14/03/2014, 10:20

... values) in the inactivated enzyme was confirmed. As in the case of DABY, the cofactor topaquinone is not modified by the reaction, as demonstrated by an unchanged quinone redox staining. Absorption ... To assess the in uence of ionic strength on the reaction, 0.1 M Britton–Robinson buffer, pH 7.2, containing variable potassium chloride was used. Rapid scanning of absorption spectra...

Ngày tải lên: 19/02/2014, 16:20

... ligation by reverse-joined hairpin ribozymes and engineering of twin ribozymes consisting of conventional and reverse-joined hairpin ribozyme units Sergei A. Ivanov, Ste ´ phanie Vaule ´ on and ... stacking of the two domains in the relevant variant of the hinged conventional hairpin ribozyme leading to enrichment of an extended inactive confor- mation [34,35]. Because of...

Ngày tải lên: 20/02/2014, 01:20

... it contains too much and redundant information. For exam- ple, the Wikipedia infobox for Justin Bieber contains eleven basic relations whereas DBpedia has fifty re- lations containing lots of redundancies. ... nodes. In this way the user can explore in an uniform way both new information nuggets and validated back- ground information nuggets interactively. Fig. 1 summarizes the main...

Ngày tải lên: 20/02/2014, 05:20

... bond inhibits the monomer-dimer transformation. (A) The gel filtration chromatogram of the disulfide-containing (oxidizing) Bet v 4 mutant; the protein was incubated at 4 °C (continuous line) and ... FEBS 2601 exclusively as a monomer on gel filtration (Fig. 4B, continuous line), addition of 0.05% SDS induced aggregation of $ 10% of the protein (Fig. 4B, dashed line). In summary, 0...

Ngày tải lên: 06/03/2014, 11:20

... tagging. On the Penn Chinese Treebank 5.0, we obtain an error reduction of 18.5% on segmentation and 12% on joint seg- mentation and part -of- speech tagging over the perceptron-only baseline. 1 Introduction Word ... 2003), Joint S&T can be conducted in a labelling fashion by expand- ing boundary tags to include POS information (Ng and Low, 2004). Compared to performing se...

Ngày tải lên: 08/03/2014, 01:20

... tion rule considering the lexical information of mistagged word. General training algorithm of the transforma- tion rule (Brill, 1993) is as follows: 1. Train initial tagger on initial training ... detection and candidate sugges- tion. Rule-based method is a way of finding the wrong tags with exact match using the pre- described rule and suggestion pair. The correc- tion...

Ngày tải lên: 08/03/2014, 05:21

Ngày tải lên: 18/02/2014, 04:20

... dollars in the strata of the population is increasingly expanding and growing. It is the income of Vietnamese people who working for foreign companies and international organizations in Vietnam. ... hyperinflationary economy in U.S dollars on a daily basis applying the 2 THE SITUATION OF DOLLLARIZATION IN VIETNAM, IT IMPACTS ON ACCOUNTING SYSTEM AND ECONOMY...

Ngày tải lên: 13/03/2014, 14:20

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Ngày tải lên: 14/03/2014, 13:20