Wolfram Library Archive: What's New
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Thousands of pages of information on Mathematica and its applicationsen-usCopyright 2014
Wolfram Research, Inc.Thu, 17 Apr 2014 22:08:10 -0500
infocenter@wolfram.comwebmaster@wolfram.comWolfram Library Archive: What's Newhttp://library.wolfram.com/images/database/rss_logo.gif
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8831VIRTUAL CORRECTIONS TO THE NLO SPLITTING FUNCTIONS FOR MONTE CARLO: THE NON-SINGLET CASE
http://library.wolfram.com/infocenter/Articles/8863/
Contributed by: O. Gituliar, S. Jadach, A. Kusina, M. Skrzypek. Construction of a QCD cascade at the NLO level requires recalculation of the splitting functions in a different manner. We describe the calculation of some of the virtual contributions to the non-singlet splitting function. In order to be compatible with the earlier calculated real contributions, the principal value prescription for ...ArticlesWed, 02 Apr 2014 12:36:55 -0600A martian case study of segmenting images automatically for granulometry and sedimentology, Part 2: Assessment
http://library.wolfram.com/infocenter/Articles/8862/
Contributed by: Suniti Karunatillake, Scott M. McLennan, Kenneth E. Herkenhoff, Jonathan M. Husch, Craig Hardgrove, J.R. Skok. In a companion work, we bridge the gap between mature segmentation software used in terrestrial sedimentology and emergent planetary segmentation with an original algorithm optimized to segment whole images from the Microscopic Imager (MI) of the Mars Exploration Rovers ...ArticlesWed, 02 Apr 2014 12:31:37 -0600Adjoint Polynomial Formulas for Nonlinear State-Space Realization
http://library.wolfram.com/infocenter/Articles/8861/
Contributed by: Juri Belikov, Ülle Kotta, Maris Tõnsoa. This paper focuses on computational aspects of the realization of nonlinear multi-input multi-output systems. Instead of the algorithmic solutions, provided in earlier works, the explicit formulas are presented, which enable to compute the differentials of the state coordinates directly from the polynomial description of the nonlinear ...ArticlesWed, 02 Apr 2014 12:26:34 -0600Analytical formulas for shear and bulk viscosities in relativistic gaseous mixtures with constant cross sections
http://library.wolfram.com/infocenter/Articles/8860/
Contributed by: Oleg Moroz. Using Mathematica package, we derive analytical closed-form expressions for the shear and the bulk viscosity coefficients in multicomponent relativistic gases with constant cross sections, being the relativistic generalization for the hard spheres model. Some of them are cumbersome and require symbolic manipulations in an algebraic package. The constant cross sections ...ArticlesWed, 02 Apr 2014 12:23:42 -0600LEM for twisted re-entrant angle sections
http://library.wolfram.com/infocenter/Articles/8859/
Contributed by: Antonina Pirrotta. In this paper an innovative numerical method named as line element-less method, LEM, for finding solution of torsion problem has been extended to all shaped sections, including sections possessing re-entrant angles at their boundary. The response solution in terms of shear stress field or Prandtl function or warping function in all domain and for any kind of ...ArticlesWed, 02 Apr 2014 12:21:34 -0600Computer algebra systems coming of age: Dynamic simulation andoptimization of DAE systems in Mathematica
http://library.wolfram.com/infocenter/Articles/8858/
Contributed by: A K. W. Navarro, V.S. Vassiliadis. In this article, DAEparser and SQPsolver, new Computer Algebra System packages specialized in Differential-Algebraic Equations for Mathematica are presented. These packages joint capabilities for dynamical system analysis, simulation and dynamic optimization through the direct sequential approach are presented with examples and case studies ...ArticlesWed, 02 Apr 2014 12:17:51 -0600Understanding the Singlet and Triplet States in Magnetic Resonance
http://library.wolfram.com/infocenter/Articles/8857/
Contributed by: KAZ NAGASHIMA, S. SENDHIL VELAN. Long-lived spin states of magnetic resonance can extend the coherence of magnetic moments beyond the time scale defined by the spin-lattice relaxation time, T1, which was once believed to be an unchangeable limit of the life span. The characteristic of this relatively new finding is the formation of an antisymmetric energy state in a coupled spin ...ArticlesWed, 02 Apr 2014 12:13:46 -0600Combined Effects of Thermophoresis and Chemical Reaction on Magnetohydrodynamics Mixed Convection Flow
http://library.wolfram.com/infocenter/Articles/8856/
Contributed by: P. K. Kunda, K. Das, S. Jana. The steady two-dimensional MHD mixed convective heat and mass transfer flow of a viscous incompressible electrically conducting second grade fluid past a semi-infinite stretching sheet in the presence of thermal radiation with chemical reaction and thermophoresis is analyzed numerically. Similarity solutions for the transformed governing equations are ...ArticlesWed, 02 Apr 2014 12:08:42 -0600A Mathematica interface to NNPDFs
http://library.wolfram.com/infocenter/Articles/8855/
Contributed by: Nathan P. Hartland, Emanuele R. Nocera. We present a Mathematica interface for handling the parton distribution functions of the NNDPF Collaboration, available from the NNPDF hepforge website http://nnpdf.hepforge.org/. As a case study we briefly summarise the first PDF set which includes all relevant LHC data, NNPDF2.3, and demonstrate the use of our new Mathematica interface.ArticlesWed, 02 Apr 2014 12:04:32 -0600A model for incorporating computation without changing the course: An example from middle-division classical mechanics
http://library.wolfram.com/infocenter/Articles/8854/
Contributed by: Marcos D. Caballero, Steven J. Pollock. Although much of the research done by modern physicists would be impossible without the use of computers, today's physics curricula do not generally reflect their importance and utility. To more tightly connect undergraduate preparation with professional practice, we integrated computational instruction into middle-division classical ...ArticlesWed, 02 Apr 2014 11:57:52 -0600Practical Linear Algebra, A Geometry Toolbox, third edition
http://library.wolfram.com/infocenter/Books/8853/
Contributed by: Gerald Farin, Dianne Hansford. Through many examples and real-world applications, Practical Linear Algebra: A Geometry Toolbox, Third Edition teaches undergraduate-level linear algebra in a comprehensive, geometric, and algorithmic way. Designed for a one-semester linear algebra course at the undergraduate level, the book gives instructors the option of tailoring the course for ...BooksWed, 02 Apr 2014 10:37:48 -0600Updating webplot which shows baseline
http://library.wolfram.com/infocenter/MathSource/8852/
Contributed by: Raja Kountanya. I was looking for a way to show a 'web' plot, that is, a plot which shows the change of 5 variables with changes in 3 variables. I also wanted to show the baseline and the updated plot in one place in an interactive Manipulate. Of course, I would need to turn ContinuousAction->False so that the baseline does not update on the fly. The trick was to use a dummy ...MathSource: Packages and ProgramsTue, 01 Apr 2014 15:23:21 -0600