نتایج جستجو برای: cr equivalent

تعداد نتایج: 183492  

In the present paper, we show that $S^*$ iteration method can be used to approximate fixed point of almost contraction mappings. Furthermore, we prove that this iteration method is equivalent to CR iteration method  and it produces a slow convergence rate compared to the CR iteration method for the class of almost contraction mappings. We also present table and graphic to support this result. F...

Ali Asghar Mowlavi, Mehdi Ghorbani Mona Azizi Zeinab Mohammadpoory

Introduction: One of scientific concern is increasing of unwanted neutron dose to the patient, in head and neck radiation therapy due to the presence of some isotopes in dental restorations and head of medical linac. The aim of this study is to measure the equivalent dose of thermal and fast neutron due to head of Siemens Primus Linac and a healthy tooth, Amalgam, Ni-Cr alloy a...

Journal: :The journal of physical chemistry. B 2006
Shuwu Yang Enrique Iglesia Alexis T Bell

The structure and surface composition of binary oxides consisting of CrO(x) and VO(x) dispersed on alumina and their effects on the rate and selectivity of oxidative dehydrogenation (ODH) of propane were examined and compared with those for CrO(x) and VO(x) dispersed on alumina. VO(x) deposition on an equivalent CrO(x) monolayer on alumina and deposition of CrO(x) on an equivalent monolayer of ...

2015
Sharon E. Mitchell Camille Delville Penelope Konstantopedos Davina Derous Cara L. Green Luonan Chen Jing-Dong J. Han Yingchun Wang Daniel E.L. Promislow Alex Douglas David Lusseau John R. Speakman

A commonly observed response in mammals to calorie restriction (CR) is reduced body temperature (Tb). We explored how the Tb of male C57BL/6 mice responded to graded CR (10 to 40%), compared to the response to equivalent levels of protein restriction (PR) over 3 months. Under CR there was a dynamic change in daily Tb over the first 30-35 days, which stabilized thereafter until day 70 after whic...

2009
JIŘÍ LEBL

We prove and organize some results on the normal forms of Hermitian operators composed with the Veronese map. We apply this general framework to prove two specific theorems in CR geometry. First, extending a theorem of Faran, we classify all real-analytic CR maps between any hyperquadric in C and any hyperquadric in C, resulting in a finite list of equivalence classes. Second, we prove that all...

2009
Alan H. Stern

Although the carcinogenicity of hexavalent chromium (Cr+6, Cr(VI)) by inhalation has been known for a long time, there has been little evidence regarding the potential for the carcinogenicity and no ability to estimate cancer potency of Cr+6 by ingestion until recently. The release in 2008 of the National Toxicology Program’s (NTP) chronic bioassay of rats and mice exposed to Cr+6 in drinking w...

2016
Xianghong Gong Laurent Stolovitch XIANGHONG GONG

We study a germ of real analytic n-dimensional submanifold of C that has a complex tangent space of maximal dimension at a CR singularity. Under some assumptions, we show its equivalence to a normal form under a local biholomorphism at the singularity. We also show that if a real submanifold is formally equivalent to a quadric, it is actually holomorphically equivalent to it, if a small divisor...

Journal: :Journal of the American College of Cardiology 2000
R Brennecke U Bürgel R Simon G Rippin H P Fritsch T Becker S E Nissen

OBJECTIVES We sought to investigate up to which level of Joint Photographic Experts Group (JPEG) data compression the perceived image quality and the detection of diagnostic features remain equivalent to the quality and detectability found in uncompressed coronary angiograms. BACKGROUND Digital coronary angiograms represent an enormous amount of data and therefore require costly computerized ...

2008
Michael O. Albertson Daniel W. Cranston

For r = 7, 8 we prove that if χ(G) = r, then cr(G) ≥ cr(Kr). The case r = 5 of the Weak Hajós Conjecture is equivalent to the Four Color Theorem, and the case r = 6 follows from a theorem of Oporowski and Zhao. We present partial results when r = 9.

2009

CR-39 Solid State Nuclear Track Detecting foils (SSNTD), along with 1 mm thick polyethylene radiator, sealed in triple laminated pouches, are used for country wide Fast Neutron Personnel Monitoring in India. With the present system of processing by elevated temperature electrochemical etching (ETECE) and evaluation using automatic image analysis, only 16 foils are processed at a time and it is ...

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