نتایج جستجو برای: روش powell

تعداد نتایج: 371996  

2006
George H. McCracken Keith R. Powell Larry J. Baraff David L. Schriger James W. Bass Gary R. Fleisher Jerome O. Klein

Study objective. To develop guidelines for the care of infants and children from birth to 36 months of age with fever without source. Participants and setting. An expert panel of senior academic faculty with expertise in pediatrics and infectious diseases or emergency medicine. Design and intervention. A comprehensive literature search was used to identify all publications pertinent to the mana...

Journal: :Discrete Mathematics & Theoretical Computer Science 2006
Stavros D. Nikolopoulos Leonidas Palios

In this paper, we consider the recognition problem on three classes of perfect graphs, namely, the HH-free, the HHDfree, and the Welsh-Powell opposition graphs (or WPO-graphs). In particular, we prove properties of the chordal completion of a graph and show that a modified version of the classic linear-time algorithm for testing for a perfect elimination ordering can be efficiently used to dete...

Journal: :Adv. Comput. Math. 2002
Peter Alfeld Larry L. Schumaker

Macro-elements of smoothness C r on Powell-Sabin triangle splits are constructed for all r 0. These new elements are improvements on elements constructed in 10] in that certain unneeded degrees of freedom have been removed. A bivariate macro-element deened on a triangle T consists of a nite dimensional linear space S deened on T, and a set of linear functionals forming a basis for the dual of S...

Journal: :Bulletin of The Chemical Society of Ethiopia 2022

ABSTRACT. Essential oil (EO) was extracted from Melaleuca cajuputi Powell leaves using the steam distillation method. The main aim of this study is to determine several physicochemical properties EO, including acid value, saponification ester relative density, absolute and freezing point. In addition, chemical components were also analyzed gas chromatography–mass spectrometry (GC–MS) obtained 1...

Journal: :Communications in Mathematics and Applications 2022

We use different types of training algorithms in the neural network. But, we cannot say which kind algorithm is fast for a given problem. So, this survey paper, are trying to find better categorization problems. For purpose, used ten pattern network MATLAB. Levenberg-Marquardt (LM), Bayesian regularization backpropagation (BR), BFGS Quasi-Newton (BFG), Resilient Backpropagation (RP), Scaled Con...

2007
Jan Maes Adhemar Bultheel

The Powell–Sabin (PS) piecewise quadratic C finite element on the PS 12-split of a triangulation is a common choice for the construction of a BPX-type preconditioner for the biharmonic equation. In this note we investigate the related Powell–Sabin element on the PS 6-split instead of the PS 12-split for the construction of such preconditioners. For the PS 6-split element multilevel spaces can b...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2016
Krist Vaesen Mark Collard Richard Cosgrove Wil Roebroeks

Demography is increasingly being invoked to account for features of the archaeological record, such as the technological conservatism of the Lower and Middle Pleistocene, the Middle to Upper Paleolithic transition, and cultural loss in Holocene Tasmania. Such explanations are commonly justified in relation to population dynamic models developed by Henrich [Henrich J (2004)Am Antiq69:197-214] an...

Journal: :SIAM J. Scientific Computing 2000
Xinwei Liu Ya-Xiang Yuan

An algorithm for general nonlinearly constrained optimization is presented, which solves an unconstrained piecewise quadratic subprob-lem and a quadratic programming subproblem at each iterate. The algorithm is robust since it can circumvent the diiculties associated with the possible inconsistency of QP subproblem of the original SQP method. Moreover, the algorithm can converge to a point whic...

Journal: :Archives of disease in childhood 1966
J N Scragg S J Powell

Although amoebic liver abscess is infrequent in children, the outcome is much less favourable than it is in adults. When treated with combined emetine hydrochloride, chloroquine, and aspiration, the prognosis is excellent in adults (Wilmot, 1962), this regime being more successful than treatment with a single drug (Wilmot, Powell, and Adams, 1959; Wilmot, Powell, MacLeod, and Elsdon-Dew, 1964)....

Journal: :Computer Aided Geometric Design 1997
Michael S. Floater

The function F has three semi-infinite lines of tangent discontinuity: l1 = {(x, 0) : x ≥ 0}, l2 = {(x,−x) : x ≤ 0}, and l3 = {(x, x) : x ≤ 0} which meet at the origin. These lines, when restricted to the triangle △, divide △ into three quadrilaterals. If we further divide these quadrilaterals by the three line segments [0,x1], [0,x2], [0,x3] joining the origin to the three vertices of △ we obt...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید