Báo cáo vật lý: "The Kinetics and Mechanism of the Core-shell Styrene-butyl Acrylate Polymerisation" pdf

... experimentally and estimates of the emulsion polymerisation mechanism of synthesis for the obtained core and shell. The determination of the polymerisation reaction kinetics of the styrene core and butyl ... is the polymerisation rate of the styrene core, and k is the rate reaction constant in the formation of the styrene core. 3.4 Mechanism...

Ngày tải lên: 07/08/2014, 14:20

... 800 o C, the diffusion of oxygen ions through the entire thickness of the electrode was seen in the collapse of the spike into a semicircular arc [Fig. 4(c)], supporting the idea that the conducting ... 7 shows the comparison of the Arrhenius plots of Bi 3 NbO 7 synthesized by the solid-state and mechanochemical methods. Based on the results, there is no...

Ngày tải lên: 07/08/2014, 14:20

... 5 (24%) and 6 (29%) that were identified by comparison with the mp, IR and NMR of the authentic samples. Compound 9 showed IR bands at 1780 cm –1 due to the presence of δ-lactone, bands at ... 157 o C) and 6 (mp 144 o C) were identified as isozaluzanin-C, telekin, and isotelekin. The IR bands [in chloroform (CHCl 3 )] of compound 3 were obtained at 3440, 1775, 1670,...

Ngày tải lên: 07/08/2014, 14:20

... that the DCN/SS50 composite possesses the lowest CTE value. The T onset and T peak of the DCN were not influenced by the addition of diffusants. On the other hand, the ΔH and T g of the ... T g as the content of the SS50 diffusant increases. Table 3 shows the T g of the DCN and of the various DCN/SS50 composites. The T g for the DCN/SS50...

Ngày tải lên: 07/08/2014, 14:20

... external surface of the resin where shape selectivity does not exist. 16 On the other hand, the reaction might occur on the internal sites of the NR/S-20 structure and therefore control the shape ... 3.4 Influence of the Hydrocarbon Chain Length on the Acid The influence of the hydrocarbon chain length on the diffusion rate of the acid in the ca...

Ngày tải lên: 07/08/2014, 14:20

... Analysis of the Zero Wave Vector Vibrations of Tl 2 Ba 2 Cu 1 O 6 The study of lattice vibrations and the free carriers are important for the understanding of the physical nature of high ... label the ions and r is their separation. The parameters a ij and b ij are the pair potentials and the parameters Y and K determine the electronic polariza...

Ngày tải lên: 07/08/2014, 14:20

... CD4 + CD25 + Foxp3 + T reg or whether they induce the production of these cytokines from another population of cells [20]. To date, our knowledge about the different types of Th and T reg responses relates ... tissue of mouse and spleen and thymus of human and mouse [11,37]. Foxp3 is also highly expressed in lymphoid organs, such as the thymus and spleen [49], and...

Ngày tải lên: 16/02/2014, 09:20

... particular, p21 is a direct target of SREBP [20]. The role of SREBP-1a in the regulation of cell growth and the cell cycle might be biphasic and complex, and needs to be further investigated. SREBP is ... resistance [48]. The exact roles of SREBP-1c ⁄ ADD1 are not yet fully defined. SREBP and parasympathetic function in heart Parasympathetic stimulation of the heart...

Ngày tải lên: 18/02/2014, 13:20

... compares the studied network with randomized versions of it with the same size and degree dis- tribution. The so-called Z-score quantifies the difference between the studied network and an ensemble of ... analysis of the topological modules of the Fig. 3 (labelled A–G) shows that they include structural and ⁄or functional features. Table 3 summarizes the main stru...

Ngày tải lên: 19/02/2014, 07:20

... >, of (––) DPH and (ÆÆÆÆ) TMA-DPH incorporated into spores of F. solani in the absence of VtA 3 (n) and in the presence of 1.5 l M VtA 3 (s )and3 lM VtA 3 (n). Insert in (B) shows the evolution of ... change in fluidity of fungal membranes may be explained by the insertion of the protein and modulation of the lat- eral pressure, as has been reported for oth...

Ngày tải lên: 19/02/2014, 07:20