5 articles for “Field Homogeneity”

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Research ArticleOpen accessPhrase in the titleA HIGH B1 FIELD HOMOGENEITY GENERATION USING FREE ELEMENT ELLIPTICAL FOUR-COIL SYSTEMSidi M. Ahmed Ghaly, Sulaiman S. Al-SowayanDesign and testing of a prototype probe with high B1 magnetic field homogeneity that can be used for MRI is presented. It consists of four coaxial separately tuned rings of wire in a symmetric arrangement on an ellipsoidal surface. Compared to Helmholtz pair, which presents 2nd-order homogeneity, an improvement in field homogeneity is achieved, while preserving the simplicity of implementation. … …American Journal of Applied Sciences, Vol. 11, Issue 4 · 28 Jan 2014 · 7,019 accessesView PDF Cite

Research ArticleOpen accessIn the abstractSpherical and Improved Helmholtz Coil with High B1 Homogeneity for Magnetic Resonance ImagingSidi M. Ahmed Ghaly, Khalid A. Al-Snaie, Obaidullah Khan MohammadSeveral types of volume RF coils such as Helmholtz pair have been used for Magnetic Resonance Imaging. However, the field uniformity of a coil has always been suffering from a critical issue in imaging accuracy. The presented work is a study and design of spherical and improved radiofrequency Helmholtz coil which produces a high B1 magnetic field homogeneity. This coil … …American Journal of Applied Sciences, Vol. 13, Issue 12 · 22 Dec 2016 · 8,159 accessesView PDF Cite

Research ArticleOpen accessIn the abstractTransformation Box-Cox for Stabilisation of Diversity in Group Random DesignYenny Sylvia, Djunaidy SantosoIn the field of research, there are a variety of statistical methods used. Hypothesis testing is one test that is often used to obtain the conclusions of the research conducted. One hypothesis testing that is often used is the testing of hypotheses through ANOVA (Box et al., 1978). However, in determining the validity of a hypothesis is obtained, there are … …Journal of Computer Science, Vol. 11, Issue 1 · 22 Sep 2014 · 7,175 accessesView PDF Cite

Research ArticleOpen accessIn the abstractFrom &#34Foreign&#34 Language Education to Plurilingualism: Challenges for Language Education Policy in a Multilingual JapanTeja OstheiderProblem statement: With a 41% increase in foreign residents over the last 10 years, the long-neglected issue of domestic multiculturalism and multilingualism cannot be ignored anymore in Japan. Nevertheless, there is still a deep gap between common images created by mass media and education regarding “internationalization” or “globalization” and the actual condition of Japan as a migrant country. By discussing … …Journal of Social Sciences, Vol. 8, Issue 1 · 18 Feb 2012 · 8,650 accessesView PDF Cite

Research ArticleOpen accessIn the abstractStudy of Electromagnetic Radiation and Specific Absorption Rate of Mobile Phones with Fractional Human Head Models via Green's FunctionsNookala Srinivasa Rao, G. R. Babu, P. V.S. SrinivasProblem statement: Electromagnetic Radiation from mobile hand set is identified as one of the side effects for increasing rate of brain tumor. Due to this reason, Mobile phone industries are attentive towards safety issues of human health. Specific Absorption Rate is one of the important parameter while modeling the radiation effect on human head. Brain material with homogeneity is treated … …Journal of Computer Science, Vol. 7, Issue 8 · 16 Jul 2011 · 6,698 accessesView PDF Cite