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You searched on: Topic Area: Math Sorted by: date

Displaying records 41 to 50 of 105 records.
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41. A New Analysis of the False-Positive Rate of a Bloom Filter
Topic: Math
Published: 10/15/2010
Authors: Ken Christensen, Allen L Roginsky, Miguel Jimeno
Abstract: A Bloom filter is a space-efficient data structure used for probabilistic set membership testing. When testing an object for set membership, a Bloom filter may give a false positive. The analysis of the false positive rate is key to understanding the ...

42. Modelling Type Ia Supernova Light Curves
Topic: Math
Published: 9/15/2010
Authors: Bert W Rust, Dianne M O'Leary, Katharine M Mullen
Abstract: Type Ia supernova light curves are characterized by a rapid rise from zero luminosity to a peak value, followed by a slower quasi-exponential decline. The rise and peak last for a few days, while the decline persists for many months. It is widely b ...

43. Practical Near-Collisions for Reduced Round Blake, Fugue, Hamsi and JH
Topic: Math
Published: 8/23/2010
Authors: Meltem Sonmez Turan, Erdener Uyan
Abstract: A hash function is near-collision resistant, if it is hard to find two messages with hash values that differ in only small number of bits. In this study, we used hill climbing methods to find near-collisions for some of the second round SHA-3 candida ...

44. Performance Measurements for Evaluating Static and Dynamic Multiple Human Detection and Tracking Systems in Unstructured Environments
Topic: Math
Published: 6/30/2010
Authors: Bodt Bodt, Richard Camden, Harry A. Scott, Adam S Jacoff, Tsai Hong Hong, Tommy Chang, Richard J Norcross, Anthony J Downs, Ann M Virts
Abstract: The Army Research Laboratory (ARL) Robotics Collaborative Technology Alliance (CTA) conducted an assessment and evaluation of multiple algorithms for real-time detection of pedestrians in Laser Detection and Ranging (LADAR) and video sensor data take ...

45. Onset of Convection in Binary Liquid Layers
Topic: Math
Published: 3/24/2010
Authors: Geoffrey B McFadden, Sam Ray Coriell, Aaron Lott
Abstract: We perform linear stability calculations for horizontal bilayers of a two-component fluid that can undergo a phase transformation, taking into account both buoyancy effects and thermocapillary effects in the presence of a vertical temperature gradien ...

46. The Solidification of an Ideal Ternary Alloy in a Mushy Layer
Topic: Math
Published: 3/24/2010
Authors: Daniel M Anderson, Geoffrey B McFadden, Sam Ray Coriell, Bruce Murray
Abstract: We consider a model for the solidification of an ideal ternary alloy in a mushy layer that incorporates the effects thermal and solutal diffusion, convection and solidification. Our results reveal that although the temperature and solute fields are ...

47. The DEMO Quasisymmetric Stellarator
Topic: Math
Published: 2/26/2010
Authors: Paul R. Garabedian, Geoffrey B McFadden
Abstract: The NSTAB code solves differential equations in conservation form, and the TRAN test particle code tracks guiding center orbits in a fixed background, to provide simulations of equilibrium, stability, and transport in tokamaks and stellarators. These ...

48. Mathematical and Computational Sciences Division Summary of Activities for Fiscal Year 2009
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7671
Topic: Math
Published: 2/25/2010
Author: Ronald F Boisvert
Abstract: This report summarizes the technical work of the Mathematical and Computational Sciences Division (MCSD) of NIST s Information Technology Laboratory. Part I (Overview) provides a high-level overview of the Division s activities, including highlight ...

49. Tensor Product B-spline Mesh Generation for Accurate Surface Visualizations in the NIST Digital Library of Mathematical Functions
Topic: Math
Published: 2/12/2010
Authors: Bonita V Saunders, Qiming Wang
Abstract: We discuss the use of tensor product B-spline meshes to design accurate three dimensional graphs of high level mathematical functions for the National Institute of Standards and Technology (NIST) Digital Library of Mathematical Functions. The graph ...

50. Predicted Functions of MdmX in Fine Tuning the Response of p53 to DNA Damage
Topic: Math
Published: 2/5/2010
Authors: Sohyoung Kim, Mirit I Aladjem, Geoffrey B McFadden, Kurt W Kohn
Abstract: Tumor suppressor protein p53 is negatively regulated by two structurally homologous proteins, Mdm2 and MdmX. In contrast to Mdm2, MdmX lacks ubiquitin ligase activity. Although the essential interactions of MdmX are known, it is not clear how they fu ...

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