hygric thermal and durability properties of autoclaved aerated concrete

Ngày tải lên: 21/06/2014, 17:20

Ngày tải lên: 16/03/2014, 15:18

Ngày tải lên: 31/12/2013, 10:33

... discussed; iii) electron (hole) transport and optical properties of semiconductors and their heterostructures; and iv) behavior of electrons in small and disordered structures. As much as possible ... structure. Electronic and Optoelectronic Properties of Semiconductor Structures Jasprit Singh University of Michigan, Ann Arbor 1.3. Crystal Structure 11 Structure of the electronic de vice Structure of the ... case of GaAs and InP the CZ technique has to face problems arising from the very high pressures of As and P at the melting temperature of the compounds. Not only does the chamber have to withstand...

Ngày tải lên: 24/01/2014, 17:34

... high coercivity of materials, the second term can take part of several tens percent of H C and the last one whereas can only reach several hundreds of gauss. Thus, the increasing of Co-concentration ... to the increasing of anisotropy property of ferrites Ni 1-x Co x Fe 2 O 4 , hence it was the increasing of H C . The increasing of H C proved that the soft magnetic property of ferrite NiFe 2 O 4 ... to increasing of total magnetization of a molecule Ni 1-x Co x Fe 2 O 4 and hence there is increasing of M S (table 3). Another side, it is known that the magnetizing process of hard ferrite...

Ngày tải lên: 13/02/2014, 04:20

... has structural and functional properties of RNase and participates in degradation of IL-1b mRNA Danuta Mizgalska 1 , Paulina We˛ grzyn 1 , Krzysztof Murzyn 2 , Aneta Kasza 1 , Aleksander Koj 1 , Jacek ... 2,3 and 4, lower band). The levels of mutant and wild-type MCPIP mRNAs were higher when these vectors were co-transfected with a vector overexpress- ing IL-1b (Fig. 5, lanes 3 and 4, upper bands). ... regulation of mRNA stability in inflam- matory processes. These authors found that MCPIP has RNase properties and regulates the stability of IL-6 and IL-12p40 mRNA [4]. MCPIP-dependent degrada- tion of...

Ngày tải lên: 18/02/2014, 14:20

... Araujo Soares RM (2006) Secretion of serine peptidase by a clinical strain of Candida albicans: influence of growth conditions and cleavage of human serum proteins and extracellular matrix components. ... effect of a 5 lm concentration of trappin-2 towards C. albicans was time-dependent, reaching 92% after 6 h and 98% after 18 h (Fig. 5). Effect of NaCl and heparin on the antibacterial and antifungal ... antibacterial ⁄ fungicidal properties of trappin-2 involve the cationic nature of the molecule, as assessed from the salt and heparin dependence of the antimicro- bial and antifungal effects. Results Antimicrobial...

Ngày tải lên: 18/02/2014, 17:20

... detector and x-scan soft- ware (Applied Photophysics). Spectra were analysed and intermediates of the reaction identified by global analysis and numerical integration methods using prokin software (Applied ... orf-4 and hemE) all putatively transcribed in the same direction [7]. The second and fifth genes (aauA and aauB) encode the large and small subunits of AADH, respectively. The genes aauD and aauE ... the expected mass of the a subunit to 40 421 Da, which is within error of the measured mass of 40 422 Da. Stopped-flow studies of the reductive half-reaction of AADH Studies of the reductive half-reaction...

Ngày tải lên: 19/02/2014, 07:20

... inhibition of growth of N. crassa and fluorescence of SYTOX green could be observed (Fig. 5B). Similar results were obtained for all combinations of peptides and fungi. This suggests that inhibition of ... most active, inhibiting 50% of growth of N. crassa and F. culmorum at a concentration of 0.8 l M (3.9 lgÆmL )1 ) and having an IC 50 of 2 l M (9.7 lgÆmL )1 ) for growth of the yeast S. cerevisiae. F. ... LPS of Gram- negative bacteria, enabling the disruption of the outer membrane and facilitating the interaction of the toxin with the inner membrane. In the presence of high Mg 2+ ions, the MIC of...

Ngày tải lên: 21/02/2014, 15:20

... Bal 1,2 1 Faculty of Chemistry, University of Wroclaw, Poland; 2 Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw, Poland A comparative study of thermodynamic and kinetic aspects of ... DAHKam-Cu(II) (B) and DAHKam-Ni(II) (C), calculated for 0.5 m M concentrations of peptides and metal ions. The intensities of CD bands of 4N complexes (constructed by adding intensities at extremes of d–d bands ... nterpretation and modelling of C u(II) and Ni(II) transport by albumins. On the other hand, the direct thermodynamic and kinetic characterization of Ni(II) binding at site I in HSA and BSA was...

Ngày tải lên: 22/02/2014, 04:20

... characteristics and mechanical properties of bamboo. Dissertation, Chinese Academy of Forestry, Beijing, China. pp. 147. Yusoff, M.N.M, A. Abd.Kadir, and A.H. Mohamed. 1992. Utilization of bamboo ... SG and bending properties 41 Figure 3-10. Schematic diagram of bamboo cross section showing removal of outer layer (A) and removal of inner layer (B) … … 42 vi year old bamboo. Three and ... (3) contact angle of different layers, (4) moisture content, SG, and bending properties, along longitudinal and radial directions of one, three, and five year old bamboo and determine the correlation...

Ngày tải lên: 22/02/2014, 09:20

... existence of a 2-D hexagonal structure of a p6mm symmetry. The distance between two pore centres is about 6nm and the high wall thickness (6-7nm) is beneficial to thermal and hydrothermal stabilities ... activity and selectivity in the oxidation of glucose. When increasing the content of Pt loading, most Pt nanoparticles aggregated outside the channels of SBA-15 with size of 10-15nm and catalytic ... VNU Journal of Science, Natural Sciences and Technology 26 (2010) 183-190 183 Study on the characteristics and catalytic properties of Pt/SBA-15 in the selective oxidation of D-Glucose Tran...

Ngày tải lên: 05/03/2014, 11:21

... [20]: k off ¼ðk offð2Þ Âð½ibuprofen=ðK 2 ½ibuprofenÞ þðk offð3Þ Âð½ibuprofen=ðK 3 ½ibuprofenÞÞ þ k þ off ð7Þ where k off(2) and k off(3) indicate values of k off occurring at K 2 < [ibuprofen] ... buffer) and 20.0 °C [20], in the absence and pres- ence of ibuprofen (final concentration, 1.0 · 10 )7 to 1.0 · 10 )2 m). The excess of NO was pumped off gently before recording of ligand dissociation ... at K 2 < [ibuprofen] < K 3 , and at K 2 < K 3 < [ibuprofen], respectively, and k þ off is the k off value obtained in the absence of ibuprofen. Data analysis Kinetic and thermodynamic data were...

Ngày tải lên: 06/03/2014, 01:20

... present analysis of enzymatic properties of ChiG, or by our analysis of the ChiG and ChiC structures. Despite the deletion of the B-loop, the two putative catalytic residues Glu68 and Glu77 are ... cell pellet was resuspended in 15 mL of ice-cold spheroplast buffer (10 mL of 1 m Tris ⁄ HCl, pH 8.0, 17.1 g of sucrose, 100 lL of 0.5 m EDTA, pH 8.0, and 200 lL of phenyl- Bacterial family 19 chitinase ... that catalyze the hydrolysis of chitin, a carbohydrate poly- mer of 1,4-b-linked GlcNAc. Chitin is found in the cuticle of insect shells, in shells of crustaceans, and in the cell walls of many fungi, making...

Ngày tải lên: 07/03/2014, 11:20

... NdeI and BamHI and ligated into the expression vector pFLAG1 at the unique NdeI and BglII sites. Expression of HRPC in E. coli W31110, isolation of inclusion bodies, refolding and purification of ... strength of the Fe-Im bond but also the stability of the different oxidation states. In fact, the potential sensitivity and dependence of enzyme properties on the structural characteristics of the ... a significant impact on the properties of His170. The strength of the hydro- gen bond between the proximal His and Asp residues, and thus the imidazolate character of the His is expec- ted to...

Ngày tải lên: 07/03/2014, 21:20

... Søren Andersen and Professor Peter Roepstorff (University of Southern Denmark, Odense) for recording the presented MALDI-TOF ⁄ TOF spectrum, and Tove Olafsen and Anna M. Wu (University of California ... Buus 2 and Inger Sandlie 1 1 Department of Molecular Biosciences and Centre for Immune Regulation, University of Oslo, Norway 2 Institute of Medical Microbiology and Immunology, University of Copenhagen, ... half-life of Fig. 4. Analysis of b2m and hFcRn HCs by MALDI-TOF MS prior to reduction of disulfide bonds (aliquot 1). Spectra were recorded after iodoacetamide treatment and tryptic digestion of gel-separated...

Ngày tải lên: 16/03/2014, 06:20

... carbon to silicon and silicon monoxide, and then silicon reacts with iron to form FeSi 2 [18]. The second step is that FeSi 2 is evaporated on the surface of the pellets and the thermalcouple to ... divided into monocentric and polycentric nucleation, and growth step into periodic stable growth and peri- odic unstable growth [19]. Thus the combination of dierent nucleation and growth processes ... dierent forms of SiONWs, which is similar to the growth model of Si nanowires [20]. The formation process of polyp-shaped SiONWs is considered to be due to the coexistence of monocentric and polycentric...

Ngày tải lên: 16/03/2014, 15:07

... effects of size and shape of Si-nc on the incorporation of group-III (B and Al), group-IV (C and Ge) and group-V (N and P) impurities. Single-doping has been investigated both in spherical and faceted-like ... FE and the electronic properties of the Si-nc are influenced by the insertion of more and more impurities. We call this insertion of several impurities multidoping. Fig. 9 shows how the FE of ... that the electronic properties of B- and P-codoped Si-nc are qualitatively and quantitatively different from those of either B- or P- single-doped Si-nc. The presence of both a n and a p impurity...

Ngày tải lên: 16/03/2014, 15:15

Ngày tải lên: 16/03/2014, 15:37

Ngày tải lên: 16/03/2014, 18:20