Workability and stability of lightweight aggregate concrete from rheology perspective

... study on workability and stability of fresh lightweight aggregate concrete (LWAC) from rheology perspective It involves using rheological parameters of Bingham model, which are yield stress and plastic ... particles (Du and Folliard, 2005) and aggregate in normal-weight aggregate concrete In lightweight aggregate concrete (LWAC), however, the floatation...

Ngày tải lên: 16/09/2015, 08:30

... ratio, size of lightweight aggregate, density of lightweight aggregate and volume of lightweight aggregate has reasonable effects on penetrability properties of lightweight aggregate concrete The ... penetrability of concrete for three different types of concretes: normal weight granite concrete (NWC), lightweight aggregate concrete (LWAC) and recycl...

Ngày tải lên: 13/10/2015, 15:55

... studied the thermal unfolding of both the wild-type HUTmar protein and its E34D mutant in acidic solutions (pH 4.00, 3.75 and 3.50) to improve the reversibility of unfolding and avoid postunfolding ... We report here the results of an extensive thermalstability study of a hyperthermophilic protein, the histonelike protein from T maritima (HUTmar-wt...

Ngày tải lên: 23/03/2014, 12:20

... Val48–Lys49) form the second b-sheet The Ó FEBS 2003 Structure and stability of HK022 excisionase (Eur J Biochem 270) 4853 Fig Solution state structure of HK022 Xis_C28S (A) Stereoview of the 20 conformers ... the role of the C-terminal tail, remained unclear In order to better understand the functional organization of excisionases, a structural and the...

Ngày tải lên: 23/03/2014, 15:21

... Stereochemistry and conformational stability of DbjA Effect of temperature The effect of temperature on DbjA activity and enantioselectivity was determined by performing activity and enantioselectivity ... Stereochemistry and conformational stability of DbjA R Chaloupkova et al Fig pH-dependent dissociation, deactivation and denaturation of DbjA: , melting t...

Ngày tải lên: 28/03/2014, 22:21

... protein–protein interactions [6], as well as in the structural stability of proteins [23–25] Inspection of a preliminary structural model of cyt c6, based on the known structure of cytochrome c6 from ... oxygen of D72 Taking the functionally and structurally interesting mutant D72K as a material starting point, we aimed to study the contribution of the...

Ngày tải lên: 30/03/2014, 20:20

... view of the lack of any performance history, the use of PA concrete was limited to the repair of bridges and tunnel linings to extend their usefulness After extensive laboratory testing, the Bureau ... requirements limit the amount of fine aggregate (sand) that can be used in the grout For PA concrete for use in beams, columns, and thin sections, the...

Ngày tải lên: 24/10/2014, 17:44

... hydrophobic core (M88V) and the other in the protein–RNA interaction (T45S), decrease the stability of the capsid Our findings illuminate the role of packing in the icosahedral lattice of the virus ... middle of the central b-strand of the coat protein dimer and its side-chain projects into the protein’s interior (Figs 1B and 8) The two Met...

Ngày tải lên: 19/02/2014, 12:20

... ortholog of HRPC2 (91% amino acid identity) Shinmyo et al [64] have studied the promoter activity and wound-induction of HRPC and -E types, and of AtPCa and AtPEa Most remarkably, C2, and only C2, ... (2001) Differential activity and structure of highly similar peroxidases Spectroscopic, crystallographic, and enzymatic analyses of lignifying Arabidopsis thaliana p...

Ngày tải lên: 21/02/2014, 01:21

... thioredoxins were found In this study we examined the involvement of the peroxiredoxin Bcp2 in oxidative stress in the hyperthermophilic aerobic archaeon Sulfolobus solfataricus Furthermore, ... clarified in detail and could play a key role in the detoxification processes In this study we examined the role of Bcp2 in order to increase the knowledge...

Ngày tải lên: 07/03/2014, 12:20

... These data indicated that the fractionation procedure was satisfactory and that the tetrathionate hydrolase is a periplasmic enzyme Purification of the tetrathionate hydrolase from tetrathionate- grown ... properties of tetrathionate hydrolase of A caldus were similar to those of other acidithiobacilli (Table 4) The specific activity of tetrathionate hydr...

Ngày tải lên: 07/03/2014, 14:20

... of parallel b strands associated to an antiparallel strand (b2) and is surrounded by helices (a1 , a2 , a3 , a7 and a8 ) The second domain consists of helices a4 , a5 and a6 all clustered on the top ... indicating that Rv1399c is composed of 22% of a- helices, 25% of b-strand and 39% of random coil The catalytic triad is located at the bottom of a s...

Ngày tải lên: 07/03/2014, 16:20

... (5) and b-elemene (6) (Fig 1) from the essential oil of C wenyujin GC-MS analysis showed that the six isolated compounds except curcumol (2) were the major components in the essential oil of C wenyujin ... total of mg of curdione (1), mg of curcumol (2), 10 mg of germacrone (3), 18 mg of curzerene (4), mg of 1,8-cineole (5) and 17 mg of b-elemene (6) f...

Ngày tải lên: 07/03/2014, 21:20

... localization of the enzymes involved in cholesterol biosynthesis and with the puri®cation of the bovine protein from the ER Determination of D14-SR activity To demonstrate that the cloned bovine liver ... presence of signature patterns conserved from yeast D14-SR (ERG24 gene) and sterol D24(28)-reductase (ERG4 gene), as well as the degree of similarity with human LBR...

Ngày tải lên: 08/03/2014, 16:20

... towards N- acetyl-D-methionine, N- acetyl-D-alanine, N- acetyl-D-leucine and N- chloroacetyl-D-phenylalanine than towards N- acetyl-D-valine, N- acetyl-D-phenylalanine, N- acetyl-D-tryptophan, N- acetyl-D-tyrosine ... A- 6-D50061: Alcaligenes xylosoxydans ssp xylosoxydans A- 6 N- acylD-glutamate amidohydrolase; Alicaligenes faecalis-DA1: Alcaligenes faecalis DA1 N- acyl D-amino...

Ngày tải lên: 08/03/2014, 16:20