نتایج جستجو برای: hds

تعداد نتایج: 747  

2015
YONGHUA LI SHUMEI LIU YIGANG MAN NING LI YU ZHOU

The aim of the present study was to investigate the effect of vitamins E (VE) and C (VC), combined with β-carotene (β-C), on cognitive function in the elderly. A total of 276 elderly subjects completed the prospective study following treatment with VE, VC and different doses of β-C or with VE only. Cognitive function was assessed by the Mini-Mental State Examination (MMSE) and Hasegawa Dementia...

2010
Bing Yan Qing-He Zhang Michael P. Lamb

We analyzed oscillating flow data from U-tube experiments by Lamb et al. (2004) and found that the time-averaged turbulent kinetic energy (TKE) near bed decreased exponentially with height above the bed in high-densitysuspension (HDS) flows under waves, and that the ratios of TKE distributions in the streamwise, cross-stream, and vertical dimensions were constant. Based on the finite-mixing-len...

2003
M. A. VILLA GARCIA

Solid-state reactions of elemental sulfur with metallic cobalt and molybdenum powders were used to synthesize model catalysts for hydrodesulfurization (HDS). The resulting materials had a general stoichiometry of CozlMo,-,S2 with x between 0.025 and 0.3. The solid phases formed during synthesis and after exposure to typical HDS reaction conditions were identified by X-ray diffraction and select...

Journal: :IOP Conference Series: Materials Science and Engineering 2016

Journal: :Journal of Catalysis 2022

To enhance the hydrodesulfurization (HDS) activity of SiO2-supported Rh phosphide catalysts, various second metal-added Rh–P catalysts were developed; furthermore, effect addition metal on HDS performance was examined. The metals (M: Ru, Pt, and Ir) selected as per Sabatier principle. In situ X-ray diffraction revealed formation an Rh2P phase in Rh–M–P catalyst after reduction. Ru Pt to enhance...

2009
Jesús Barba Fernando Rincón Calle Francisco Moya David Villa Felix Jesús Villanueva Juan Carlos López

Hardware-dependent Software (HdS) synthesis is becoming a key aspect in the development of mixed software and hardware computation platforms due to the increasing software content in such systems. Uniform and high-level interface models for both HW and SW are required in order to perform HdS development in parallel with the platform prototyping.In this paper, an optimal hardware and software in...

2006
A. SAMET N. SOUISSI W. ZOUCH M. A. BEN AYED N. MASMOUDI

In motion estimation, the search patterns with different shape and size have a large consequence on the searching speed and quality of performance. A popular example is the full search (FS) algorithm. Nevertheless, the high computational complexity of the FS algorithm has motivated several faster search strategies. However, the FS allows a better quality. In this paper, we compare the performan...

Journal: :Journal of the American Chemical Society 2005
N Arul Dhas Kenneth S Suslick

Ceramic hollow spheres of MoS2 and MoO3 were obtained by sonochemical synthesis of MoS2 and MoO3 templated on silica nanoparticles (diameters 50-500 nm) followed by acid etching to remove the silica core. The resulting hollow materials have been characterized by elemental analysis, XPS, SEM, TEM, optical absorption, and hydrodesulfurization (HDS) studies. The TEM studies on the hollow ceramic m...

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