نتایج جستجو برای: pi regular
تعداد نتایج: 165148 فیلتر نتایج به سال:
G. Bonvicini, D. Cinabro, M. Dubrovin, A. Lincoln, D. M. Asner, K. W. Edwards, P. Naik, R. A. Briere, T. Ferguson, G. Tatishvili, H. Vogel, M. E. Watkins, J. L. Rosner, N. E. Adam, J. P. Alexander, D. G. Cassel, J. E. Duboscq, R. Ehrlich, L. Fields, R. S. Galik, L. Gibbons, R. Gray, S. W. Gray, D. L. Hartill, B. K. Heltsley, D. Hertz, C. D. Jones, J. Kandaswamy, D. L. Kreinick, V. E. Kuznetsov,...
OBJECTIVE To evaluate the anti-plaque and anti-gingivitis properties of Acacia arabicacontaining toothpaste in an adult population. METHODS Sixty subjects with gingivitis were randomly assigned to a test group (Acacia arabica-containing toothpaste) or control group (regular toothpaste). An analysis of plaque index (PI), gingival index (GI) and bleeding on probing index (BOP%) were carried out...
We define a logic of propositional formula schemata adding to the syntax of propositional logic indexed propositions (e.g., pi) and iterated connectives ∨ or ∧ ranging over intervals parameterized by arithmetic variables (e.g., ∧n i=1 pi, where n is a parameter). The satisfiability problem is shown to be undecidable for this new logic, but we introduce a very general class of schemata, called b...
Introduction: Compressed sensing (CS) is an acquisition and reconstruction technique that can reduce the measurement size [1]. In this work, we present a novel way to efficiently combine CS and parallel imaging (PI) by separating the estimation methods in k-space. We apply CS to estimate high-frequency k-space data, and use ARC (Autocalibrated Reconstruction for Cartesian sampling) PI to estima...
Abstract: In this paper we described the structure and working principle of an interruption generator based on voltage source converters (VSCs). The main circuit parameters of the VSCs are determined according to the target of power transfer capability, harmonic suppression, and dynamic response capability. A state feedback linearization method in nonlinear differential geometry theory was used...
BACKGROUND Mouthwashes are an adjunct to, not a substitute for, regular brushing and flossing. Chlorohexidine is cationic bis-biguanide broad spectrum antiseptic with both anti-plaque and antibacterial properties. It has side-effects like brownish discoloration of teeth and dorsum of the tongue, taste perturbation, oral mucosal ulceration, etc. To compare the antiplaque efficacy of herbal and c...
مدلسازی پیلهایسوختی شده است. اما بسیاری از این روشها به طور عملی و آزمایشگاهی بررسی نشده است و هنوز کمبود مطالعات موشکافانه روی پارامترها و روابط مربوط به متغیرهای عملکرد مشاهده می شود. از سوی دیگر، تنها مدلها و روشهای کمی به طور مخصوص به طراحی کنترلکننده پرداختهاست. مدلی که در این جا استفاده شدهاست، یک مدل به منظور تسهیل شبیهسازی سیستم قدرت همراه با پیلسوختی است و تنها نیاز به چند متغیر ا...
To explore the relationship between transcranial current stimulation (tCS) and the electroencephalography (EEG) forward problem, we investigate and compare accuracy and efficiency of a reciprocal and a direct EEG forward approach for dipolar primary current sources both based on the finite element method (FEM), namely the adjoint approach (AA) and the partial integration approach in conjunction...
we study topological von neumann regularity and principal von neumann regularity of banach algebras. our main objective is comparing these two types of banach algebras and some other known banach algebras with one another. in particular, we show that the class of topologically von neumann regular banach algebras contains all $c^*$-algebras, group algebras of compact abelian groups and cer...
This paper describes the polytope Pk;N of i-star counts, for all i 6 k, for graphs on N nodes. The vertices correspond to graphs that are regular or as regular as possible. For even N the polytope is a cyclic polytope, and for odd N the polytope is well-approximated by a cyclic polytope. As N goes to infinity, Pk;N approaches the convex hull of the moment curve. The affine symmetry group of Pk;...
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