نتایج جستجو برای: structural enhancement

تعداد نتایج: 518161  

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2004
David H Mathews Matthew D Disney Jessica L Childs Susan J Schroeder Michael Zuker Douglas H Turner

A dynamic programming algorithm for prediction of RNA secondary structure has been revised to accommodate folding constraints determined by chemical modification and to include free energy increments for coaxial stacking of helices when they are either adjacent or separated by a single mismatch. Furthermore, free energy parameters are revised to account for recent experimental results for termi...

2016
Upendra Bhatt Annapurna Singh

In computer vision field, Image resolution enhancement has become the most current research area. Improving image resolution by applying costly hardware is expensive and time-consuming. In this paper we have discussed different methods to improve the resolution of the single image and we have given a comparison of different Super resolution algorithms for standard images based on PSNR and SSIM ...

2014
Anwar Khan Rishabha Malviya Pramod K Sharma

Solubility is the process of dissolution of solid in liquid phase to give a homogenous system and is one of the important parameter to achieve desired concentration of drug in systemic circulation for pharmacological response. Dissolution rate of poorly water-soluble drugs is rate limiting step for its bioavailability so increase in bioavailability is the major challenging task in drug developm...

2011
Chang-kwon Kang Hikaru Aono Wei Shyy

Thrust generation and scaling parameters for flapping flexible wings are investigated using an integrated framework of computational fluid dynamics and structural dynamics solvers. To explore the influences of the density ratio and the effective stiffness on the thrust generation, surrogate models have been generated for a flapping thin isotropic flat Zimmerman wing in still air at = 1.5×10. Ti...

2004
J. Kuneš T. Jeong W. E. Pickett

Electronic, magnetic, and dynamical properties of superconducting b-pyrochlore KOs2O6 and related RbOs2O6 and CsOs2O6 compounds are calculated and compared with experiment and contrasted with structurally related spinel pyrochlores. The calculated susceptibility Stoner enhancement (110%) and thermal mass enhancement l=2.5–3 reflect moderate but perhaps important Coulomb correlations. The K+ ion...

Journal: :Chemical communications 2010
Hongdeng Qiu Makoto Takafuji Tsuyoshi Sawada Xia Liu Shengxiang Jiang Hirotaka Ihara

A new strategy for the design of a new chromatographic stationary phase via simple modifications of the counter anions in poly(ionic liquid)-grafted silica phase based on ionic self-assembly technology is proposed. The phase with methyl orange dye as counter anions exhibits ultra-high selectivity towards shape-constrained isomers.

Journal: :journal of dentistry, tehran university of medical sciences 0
seyed jalal pourhashemi zahra ghoncheh mohammad taghi kiani raheleh emami mohamad javad kharazifard

objectives: this study aimed to compare the diagnostic accuracy of inverted and unprocessed digitized periapical radiographs for detection of peri-implant defects. materials and methods: a total of 30 osteotomy sites were prepared in three groups of control, study group 1 with 0.425 mm defects and study group 2 with 0.725 mm defects using the sic and astra tech drill systems with 4.25mm and 4.8...

Fast and accurate ridge detection in fingerprints is essential to each AFIS (Automatic Fingerprint Identification System). Smudged furrows and cut ridges in the image of a finger print are major problems in any AFIS. This paper investigates a new online ridge detection method that reduces the complexity and costs associated with the fingerprint identification procedure. The noise in fingerprint...

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 2016
Kirsten Weber Morten H Christiansen Karl Magnus Petersson Peter Indefrey Peter Hagoort

UNLABELLED When learning a new language, we build brain networks to process and represent the acquired words and syntax and integrate these with existing language representations. It is an open question whether the same or different neural mechanisms are involved in learning and processing a novel language compared with the native language(s). Here we investigated the neural repetition effects ...

Journal: :journal of research in medical sciences 0
maryam moradi peiman hashemi mohammad momeni

background: the purpose of this study was to evaluate the infl uence of ejection fraction (ef) on peak aortic time (pat) and  peak aortic enhancement (pae) during coronary computed tomography angiography (cta). materials and methods: one-hundred and twenty patients (64 men, 56 women) underwent measurement of coronary cta with a measurement of ef within 3 months of coronary cta.pearson’s correla...

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