The surface structure and adjacent interior of commercially available silicon nanopowder (np-Si) was studied using multinuclear, solid-state NMR spectroscopy. The results are consistent with an overall picture in which the bulk of the np-Si interior consists of highly ordered ("crystalline") silicon atoms, each bound tetrahedrally to four other silicon atoms. From a combination of ¹H, 29Si and ...

silicon is known to ameliorate the deleterious effects of drought on plant growth. we evaluated growth of wheat (triticum aestivum l. cv. chamran) under water-deficit stress induced by polyethylene glycol as affected by si application. in this article, the effects of si (as potassium silicate) on some parameters related to growth, chlorophyll concentration relative water content (rwc), electrol...

drought is still accounted as a serious agronomic problem and also one of the most important factors contributing to crop yield loss. the effect of sodium silicate (na2sio3, abbreviated as si) was investigated on the four major antioxidant enzyme activities and five other relevant components in two different grapevine cultivars (vitis vinifera l., cvs mish pestan and sahebi, as tolerant and sen...

Received: May 12, 2014 Published: May 22, 2014 Figure 5. Aggregations of denaturing proteins in the presence of miniαA-chaperone or chimeric mini-chaperone (CP1). (A) Heatand EDTA-induced ADH (5 μM) aggregation in the presence of mini-αA (40 μM) or mini-αA (Δ87−88, 40 μM) at 37 °C. (B) Heat-induced citrate synthase (4 μM) aggregation assay at 43 °C in the presence of mini-αA (40 μM) or CP1 (40 ...

The most powerful channel coding schemes, namely, those based on turbo codes and LPDC (Low density parity check) codes have in common principle of iterative decoding. Shannon’s predictions for optimal codes would imply random like codes, intuitively implying that the decoding operation on these codes would be prohibitively complex. A brief comparison of Turbo codes and LDPC codes will be given ...