Báo cáo vật lý: "EFFECT OF FIELD STRENGTH IN THE VELOCITY ANISOTROPY OF FERROFLUIDS" pptx

... All the observations are interpreted in terms of grain-grain interaction and grain -field interaction that exist in the system. The field strength is found to enhance the structural formation in ... depending on the evolution of the aggregates with increasing strength of the external magnetic field. 26, 27 Under the effect of an external magnetic f...

Ngày tải lên: 07/08/2014, 14:20

... by a decrease in mass loss up to 72 h. Then further increase in time has resulting an increased in mass. The effect of temperature on the corrosion behavior of AISI 304 stainless steel with ... 1000 o C for 24–120 h. The results indicated that the initial carbonate coating caused acceleration in oxidation, resulting in the formation of scales, followed by th...

Ngày tải lên: 07/08/2014, 14:20

... at the lowest point of the cure curve. 7 The results indicate that the blowing agent concentration did not affect the compound viscosity prior to crosslinking. It can also be seen that as the ... efficient solvent in most polymers; the gas molecules accumulate interstitially between the polymer chains, thus increasing the free volume and mobility of the chain....

Ngày tải lên: 07/08/2014, 14:20

... in the material. The aim of the present study is to investigate the possibility of using barium titanate (BaTiO 3 ) as a radiopacifier in PMMA. The formulation used in this study composed of ... of the silane coupling agent, causing a filler-matrix debonding. 13 In addition, the SBF molecules can be accommodated at the interface between the filler and th...

Ngày tải lên: 07/08/2014, 14:20

... improved the interfacial bonding. The molar sorption of the composites increased with increasing fiber loading. The uptake of water was due to the increased cellulose content. In the presence of ... as the fiber loading increased, the tensile strength was increased to the point of being comparable to that of pure LDPE. The presence of a coupling agent...

Ngày tải lên: 07/08/2014, 14:20

... modulate the expression of proteins involved in the retention of lipids in LDs, such as lip- ases or other LD-associated proteins. We have shown that at least one of these mechanisms is implicated in lipid ... storage in LDs. The PI3K ⁄ Akt signaling pathway stimulates lipogenesis via SREBP-1. FAS is the enzyme responsible for the synthesis of palmitate, the precur...

Ngày tải lên: 07/03/2014, 00:20

... the point of view of enthalpy, but unfavored from the point of view of entropy. A 25 °C, the higher entropy of the linear form is likely due to its higher flexibility, the higher mobility of the ... cm )1 at 25 °C of about the same integral intensity, indicating a larger population of lin- ear conformers. The upshift and increase in intensity of the peak a...

Ngày tải lên: 07/03/2014, 09:20

... residue in the initial binding and correct positioning of CA during catalysis. A role of N302 in anchoring the side-chain carboxylate of CA is further supported by the enhanced binding of amine substituted ligands ... mutagenesis of the involve- ment of some of these residues in the docking and catalysis of cinnamic acid. The impact of the active site mut...

Ngày tải lên: 17/03/2014, 10:20

... layers of pearl oysters, leaving the other shell layers poorly investi- gated at the molecular level. One exception is the find- ing of acidic glycoprotein MSP-1 in the foliated layer of Patinopecten ... those of the above-men- tioned fragments, A, B and C. After addition of the remaining sequences, namely approximately 100 bp of the 5¢-region and 110 bp of the...

Ngày tải lên: 30/03/2014, 04:20

... functional motifs in the protein. The highest levels of symmetry delineate essential functional sites in the protein. Analysis of the distribution of IMRs in the Gag polyprotein indi- cates that the gene ... the overlap. The Cys-His boxes are zinc finger binding domains which ena- ble NC to bind to nucleic acids, and the Zn ion increases the affinity of NC fo...

Ngày tải lên: 18/06/2014, 18:20