Báo cáo "Design of phase-coded transmitter and high sensitive receiver of radar system " doc

... VNU Journal of Science, Mathematics - Physics 25 (2009) 99-105 99 Design of phase-coded transmitter and high sensitive receiver of radar system Do Trung Kien 1,* , Bach ... ranging and recognition of variety of targets. Because of great diversity of applications in military and civil, the designing of radar system is usually based on purpose. For r...

Ngày tải lên: 22/03/2014, 11:20

... of FprA with higher concentrations of GdmCl results in significant loss of secondary structure of FprA due to unfolding of protein under these conditions. Changes in the molecular properties of ... out in the presence of excess FAD. Higher concentrations of GdmCl induce irreversible unfolding of FprA. The exact molecular mechanism ⁄ s of the denaturing action of urea and...

Ngày tải lên: 19/02/2014, 16:20

... the curve-fitting procedure and describing the affinity of the subunits for the substrate (K S1 and K S2 )andforP i (K I1 and K I2 ), presented in Table 1 and Table 2, respectively, are independent of the Zn 2+ ion ... form of a dianion [9], however, the slow dissociation of P i ,andtheslow phosphorylation of Ser102 by P i , are both in accordance with P i binding in form of...

Ngày tải lên: 21/02/2014, 00:20

... acquisi- tion of detailed and reliable information on the binding of several ligands and on the role of Mn 2+ and Mg 2+ on their binding. The comparison between acrylamide quenching studies and modeled ... specific site of the enzyme. A range of 23–50 l M has been reported for the dissociation constant of Mn 2+ –protein complex of ATP- and GTP-dependent PEP carboxykinas...

Ngày tải lên: 21/02/2014, 01:21

... against S6 and the GST-tag. (C) Immunoblot analysis of the phosphorylation status of p70S6K and S6 in Paskin + ⁄ + and Paskin ) ⁄ ) MEFs. (D) Immu- noblot analysis of the phosphorylation status of p70S6K ... addresses Division of Digestive and Liver Diseases, Department of Medicine, Columbia University, New York, NY, USA àInstitute of Cell Biology, ETH Zu ¨ rich, Switze...

Ngày tải lên: 06/03/2014, 00:21

... at any one of four hydroxyl groups, located at C-4, -7, -8 and -9. One such modification, the formation of O-acetyl esters, is found in nearly all higher animals and certain bacteria and has been found ... matched resection margin and cancer tissue at various stages of colorectal cancer development, a systematic survey of OAE and OAT activities along with the relative level...

Ngày tải lên: 07/03/2014, 14:20

... the inhibitory properties of TBBT, and a number of related benzotriazoles and benzimidazoles, at the NTPase/helicase sites of HCV and the related viruses Japanese encephalitis virus (JEV) and WNV, as well ... (IC 50 of 1.5–5.5 l M ) of the helicase activities of HCV, WNV and Suv3(D1–159), but not JEV. The tetrachlorobenzotriazole TCBT is only a weak inhibitor of the HC...

Ngày tải lên: 08/03/2014, 02:20

... categories and 71674 single-labeled documents (entries). It is randomly split by a proportion of 9:1 into a train- ing set with 64533 documents and a test set with 7141 documents. Every document ... proportion of 4:1 into a training set with 2800 documents and a test set with 720 documents. Documents in this data collection are from various sources in- cluding news websites, an...

Ngày tải lên: 08/03/2014, 02:21

... from the spectroscopic and ligand-binding studies of chlorite dismutase suggest binding of chlorite to the five-co-ordinate high- spin ferric form of the enzyme as the first step of the catalytic mechanism. ... nitrite and hydrogen peroxide have been found to bind to ferric chlorite dismutase. EPR spectroscopy of the hydrogen peroxide adduct shows the loss of both high- spin...

Ngày tải lên: 08/03/2014, 16:20

... of French verbs have been limited in terms of the size of sentences, that is, by restricting the type of complements to object complements. We considered 3 main types of objects: direct, and ... simple sentence with a description of the corresponding distributional and transformational properties, The systematic study of French has led to an organization of its lexic...

Ngày tải lên: 08/03/2014, 18:20