نتایج جستجو برای Modification

تعداد نتایج: 86422  

2004
J. Del Valle,

This paper explores the effect of inlet flow modifcation on the cavitating and noncavitating performance of two cavitating inducers, one of simple helical design and the other a model of the low-pressure LOX pump in the Space Shuttle Main Engine. The modifications were generated by sections of honeycomb, both uniform and nonuniform. Signifcant improvement in the performance over a wide range of...

2002
L. Lin, W. H. Holmes,

A speech denoising technique based on subband noise estimation and a perceptual modification of Wiener filtering is proposed. The noisy speech is first decomposed into critical band signals by an auditory filterbank and the denoising is carried out on the subband signals. The time varying subband noise variance required for denoising is estimated by tracking the minimum variance of the subband ...

Journal: :Molecules 2017
Pavlina Ambrozova, Jindrich Kynicky, Tomas Urubek, Vinh Dinh Nguyen,

Clinoptilolite is a natural mineral with exceptional physical characteristics resulting from its special crystal structure, mainstreamed into a large zeolite group called heulandites. An overall view of the research related to the synthesis, modification and application of synthetic clinoptilolite is presented. A single phase of clinoptilolite can be hydrothermally synthesized for 1-10 days in ...

2009
Viorica Alexandra Teodorescu, John Beavers, Hans Kamp, Richard Meier, Stephen Wechsler,

ix Chapter

2009
Stephen Crain, Henry Hamburger,

The goal of semantic theory is to provide a systematic account of the meanings of the well-formed expressions of natural language. This paper outlines a semantic theory of the workings of modifiers in English noun phrases. Our initial orientation is to pursue as far as possible a compositional, model-theoretic semantics that is indepen­ dent of knowledge and psychological processing. However, w...

Journal: :De Paul law review 1975
Myron A Whitman,

Journal: :Trends in biochemical sciences 2012
Ruth Nussinov, Chung-Jung Tsai, Fuxiao Xin, Predrag Radivojac,

Post-translational modifications (PTMs) have been recognized to impact protein function in two ways: (i) orthosterically, via direct recognition by protein domains or through interference with binding; and (ii) allosterically, via conformational changes induced at the functional sites. Because different chemical types of PTMs elicit different structural alterations, the effects of combinatorial...

1991
Bülent Murtezaoglu, Henry E. Kyburg,

Selecting the right reference class and the right interval when faced with conflicting candidates and no possibility of establish­ ing subset style dominance has been a prob­ lem for Kyburg's Evidential Probability sys­ tem. Various methods have been proposed by Loui and Kyburg to solve this problem in a way that is both intuitively appealing and justifiable within Kyburg's framework. The schem...

Journal: :Frontiers in bioscience 2014
Kaei Nasu, Yukie Kawano, Kentaro Kai, Yoko Aoyagi, Wakana Abe, Mamiko Okamoto, Hisashi Narahara,

Accumulating evidence suggests that epigenetic aberrations play definite roles in the pathogenesis of endometriosis. These include aberrations in genomic DNA methylation, microRNA expression, and histone modification. The aberrant histone modification status and the aberrant expression of histone deacetylases, which regulate histone acetylation, in endometriosis are the focus of this review. He...

2005

The effects of intravenous procainamide infusion of 10-14 mg/kg body weight (i.e., 750 mg) of procainamide (PA) on reentry within the His-Purkinje system (HPS) were studied in 13 patients using His bundle electrograms and ventricular extrastimulus method. PA abolished reentry in eight patients (group 1) and decreased the width of reentry zone in the remaining five (group 2). At comparable S,S2 ...

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