نتایج جستجو برای: uniformity of emergence

تعداد نتایج: 21166267  

Journal: :J. Log. Algebr. Program. 2010
Reinhold Heckmann

We generalize various notions of generalized metrics even further to one general concept comprising them all. For convenience, we turn around the ordering in the target domain of the generalized metrics so that we speak of similarity instead of distance. Starting from an extremely general situation without axioms, we examine which axioms or additional properties are needed to obtain useful resu...

2007
GERALD E. SACKS

Here we present the principal ideas and results of [5] with some indications of proof. We introduce the notion of measure-theoretic uniformity, and we describe its use in recursion theory, hyperarithmetic analysis, and set theory. In recursion theory we show that the set of all sets T such that the ordinals recursive in T are the recursive ordinals has measure 1. In set theory we obtain all of ...

Journal: :Journal of nuclear medicine technology 2011
Meaghan C Klempa

UNLABELLED Uniformity testing is performed daily to ensure adequate camera performance before clinical use. The aim of this study is to assess the reliability of Beth Israel Deaconess Medical Center's locally built, centralized, Web-based uniformity analysis system by examining the differences between manufacturer and Web-based National Electrical Manufacturers Association integral uniformity c...

2007
Francesco Nidito

In this thesis, we step inside an unexplored region of Wireless Sensor Networks (WSNs) research. Nowadays, almost all WSNs research relies upon a hidden uniformity assumption. This assumption involves deployment, distribution and radio transmissions. Unfortunately, the real world is not uniform. In the thesis, we break the uniformity assumption and study the non-uniformity influence in WSNs. In...

Journal: :iranian journal of medical physics 0
m.a. oghabian associate professor, physics and biomedical engineering, tehran university of medical sciences, tehran, iran. research center for science & technology in medicine, imam khomeini hospital, tehran. iran. sh. mehdipour m.sc. in research center for science & technology in medicine, imam khomeini hospital, tehran. iran. n. riahicalam associate professor, physics and biomedical engineering, tehran university of medical sciences, tehran, iran. research center for science & technology in medicine, imam khomeini hospital, tehran. iran. b. rafie b. sc. in medical imaging center, imam khomeini hospital, tehran university of medical sciences, tehran, iran. h. ghanaati associate professor, radiology dept., medical imaging center, imam khomeini hospital, tehran university of medical sciences, tehran, iran.

introduction: one of the major causes of image non-uniformity in mri is due to the existence of  non-homogeneity in rf receive and transmit. this can be the most effective source of error in  quantitative  studies  in  mri  imaging.  part  of  this  non-homogeneity  demonstrates  the  characteristics of rf coil and part of it is due to the interaction of rf field with the material being  imaged...

Journal: :categories and general algebraic structures with applications 2014
john frith anneliese schauerte

this paper is a continuation of [uniformities and covering properties for partial frames (i)], in which we make use of the notion of a partial frame, which is a meet-semilattice in which certain designated subsets are required to have joins, and finite meets distribute over these. after presenting there our axiomatization of partial frames, which we call $sels$-frames, we added structure, in th...

2010
Stephen A. Danczyk

There are two important aspects to good injector performance in rocket engines—the atomization performance (droplet size and distribution, for example) and uniformity of operation (even distribution of droplets in time and space). In general, both of these aspects are affected by the geometry and operating conditions of the injector. In studying atomization performance, prior work has largely f...

2012
Christina Dahlström Tetsu Uesaka Magnus Norgren

Print quality demands for coated papers are steadily growing, and achieving coating uniformity is crucial for high image sharpness, colour fidelity, and print uniformity. Coating uniformity may be divided into two scales: coating thickness uniformity and coating microstructure uniformity, the latter of which includes pigment, pore and binder distributions within the coating layer. This thesis c...

Journal: :transport phenomena in nano and micro scales 2013
b. zahed t. fanaei s. h. ateshi

the growth rate and uniformity of carbon nano tubes (cnts) based on chemical vapor deposition (cvd) technique is investigated by using a numerical model. in this reactor, inlet gas mixture, including xylene as carbon source and mixture of argon and hydrogen as  carrier gas enters into a horizontal cvd reactor at atmospheric pressure. based on the gas phase and surface reactions, released carbon...

Journal: :journal of ornamental plants 2015
anoosh zamiran vahid reza saffari mohammad reza maleki

the effect of electromagnetic field was examined on zinnia (zinnia elegans) seeds to enhance seed germination and early growth. the seeds were exposed to four magnetic strengths of 15, 100, 400 and 800 mt in four durations of 30, 60, 120 and 240 min. the experiments were carried out in two forms of laboratory germination and soil emergence. results showed that magnetic field application enhance...

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