نتایج جستجو برای: nm3
تعداد نتایج: 258 فیلتر نتایج به سال:
Real Scaled Matching is the problem of finding all locations in the text where the pattern, proportionally enlarged according to an arbitrary real-sized scale, appears. Real scaled matching is an important problem that was originally inspired by Computer Vision. In this paper, we present a new, more precise and realistic, definition for one dimensional real scaled matching, and an efficient alg...
Dedicated to Professor Heinrich Nöth on the occasion of his 85th birthday The rare-earth fluoride borates RE4B4O11F2 (RE = Pr, Nd) were obtained in a Walkertype multianvil device from the corresponding rare-earth oxides and fluorides, and boron oxide. Pr4B4O11F2 was obtained under high-pressure/high-temperature conditions of 8.5 GPa/1150 ◦C, and Nd4B4O11F2 at 8 GPa and 1300 ◦C. The single-cryst...
We propose a quantum-dot version of the quantumwell cascade laser of Faist et al. The elimination of single phonon decays by the three-dimensional confinement implies a several order-of-magnitude reduction in the threshold current. The requirements on dot size (10–20 nm) and on dot density and uniformity [one coupled pair of dots per (200 nm3) with 5% nonuniformity] are close to current technol...
Herein, the formation of carbon monoxide as a harmful product upon Catalytic Wet Peroxide Oxidation process is studied in presence different solid catalysts: an iron supported activated catalyst, metal-free catalyst based on Graphene Nanoplatelets, and 1.6 wt.% Fe containing Cr2AlC MAX phase catalyst. The CWPO performance evolution gas effluent have been compared to that obtained conventional F...
Air pollution comes from construction activities in the development of educational infrastructure buildings because it has an impact on changes green open space and increase air pollution, especially Carbon Monoxide (CO) emissions air. The contribution increasing CO2 CO can be sourced all workers who use energy such as procurement building materials, transportation fuels, electricity activities...
This paper discusses the characteristics of Birchwood gasification using the simulated results of a Computational Fluid Dynamics (CFD) model. The CFD model is developed and validated with the experimental results obtained with the fixed bed downdraft gasifier available at the University of Agder (UIA), Norway. In this work, several parameters are examined and given importance, such as producer ...
In the present study, we have examined the structure of human low density lipoprotein (LDL) using cryo-electron microscopy. Human LDL particles were analyzed in a vitrified frozen-hydrated condition, without chemical fixation or any form of staining. Hence, the lipoproteins were visualized close to their native state. Contrary to current spherical models, the overall shape of human LDL is indic...
The quaternary structure of the phenylalanyl-tRNA synthetase and its complex with tRNAPhe was studied in dilute solutions by small angle X-ray scattering. For the free synthetase the radius of gyration was determined as 5.5 nm, the volume 523 nm3, the maximum diameter 17.5 nm and the molecular weight as 260,000 using an isopotential specific volume of 0.735. The overall shape could be best appr...
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