We synthesized two C-S-H compounds from a mixture of carbon and sulfur in hydrogen mixed methane-hydrogen fluids at 4 GPa. X-ray synchrotron single-crystal diffraction Raman spectroscopy have been applied to these samples up 58 143 GPa, respectively. Both show similar Al2Cu type I4/mcm basic symmetry, while the subsystem evolves with pressure via variously ordered molecular extended modificatio...

Pastes of white Portland cement (wPC) and wPC-30 % pulverized fuel ash (PFA), -60 ground granulated blast furnace slag (GGBS), -30 or 60 inert filler (anatase-type TiO2) blends were prepared to investigate the dominant factors for morphological change outer product (OP) C-A-S-H gel in blended systems. The OP SCMs-blended cements changes its morphology from fibrillar-like mixed fine-fibrillar/fo...

The C?H olefination of substituted anisole derivatives by a Pd/S,O-ligand catalyst is reported. reaction proceeds under mild conditions with broad range aryl ethers bearing both electron donating and withdrawing substituents at ortho, meta para positions. Aryl are used as limiting reagents good yields site selectivities observed. methodology operationally simple can be performed aerobic conditi...

Abstract Calcium silicate hydrate (C-S-H) is the main hydration product of Portland cements. The partial replacement cements by supplementary cementitious materials can result in C-S-H with lower Ca/Si ratios and more aluminum alkalis. effect equilibration time on Al uptake was investigated using times from 7 days up to 3 years. Lower concentrations were measured solution after longer times. In...

abstract objective ethylmalonic encephalopathy (ee) is a severe mitochondrial disease of early infancy clinically characterized by a combination of developmental delay, progressive pyramidal signs and vascular lesions including petechial purpura, orthostatic acrocyanosis and chronic hemorrhagic diarrhoea. biochemical hallmarks of the disease are persistently high levels of lactate, and c4–c5-ac...

Nghiên c?u này khám phá các nhân t? làm ti?n ?? cho hành vi chia s? tri th?c ?n trong khu v?c công. D? li?u ???c thu th?p b?ng b?ng h?i và theo ph??ng pháp l?y m?u thu?n ti?n. ??i t??ng kh?o sát là cán b?, công ch?c, viên ch?c ?ang vi?c t?i c? quan chính nhà n??c ? Thành ph? H? Chí Minh. B?ng s? h? tr? c?a lãnh ??o, tác gi? 477 tr? l?i t? ?a?p viên. K?t qu? ki?m ??nh thuy?t nghiên mô hình c?u t...

Much of the work in digital preservation has focused on the perceived threat of format obsolescence. The standard approach combines tools to validate formats and collect format metadata, registries preserving format specifications, and format obsolescence notification systems. The idea is that when a format becomes obsolete a notification will be issued, a converter created from the specificati...

Let $f\_i\colon X \rightarrow \mathbf{C}$ , for $i$ integer between $1$ and $p$ be analytic functions defined on a complex variety $X$. us consider $\mathcal{D}\_X$ the ring of linear differential operators $\mathcal{D}\_X \[s\_1, \ldots, s\_p] = \mathbf{C}X \otimes{\mathbf{C}} \mathcal{D}\_X$. $m$ section holonomic -module. We denote $\mathcal{B}(m, x\_0, f\_1, f\_p)$ ideal $\mathbf{C} s\_p]$ ...