National Technical Reports Library: 72 - Mathematicshttp://www.ntis.gov/rss/RSSNTISCategoryList.aspxNational Technical Reports Libraryen(c) 2008, National Technical Information Service. All rights reserved.5RSS Feedhttp://www.ntis.gov/images/logoRSS.jpghttp://www.ntis.govAgent for the Prospect Presentation Problem.Evaluating complex propositions that are composed of several lotteries is a difficult task for humans. Presentation styles can affect the acceptance rate of such proposals. We introduce an agent that chooses between two presentation methods, while as ...http://www.ntis.gov/search/product.aspx?ABBR=ADA601737Bayesian Hierarchical Model Characterization of Model Error in Ocean Data Assimilation and Forecasts.The Bayesian Hierarchical Model (BHM) methodology is exploited to identify, characterize, and model the irreducible model error in ocean data assimilation and forecast systems. We describe 4 objectives addressed in the fiscal year October 2012-Septem ...http://www.ntis.gov/search/product.aspx?ABBR=ADA601834Challenges of Sensing and Repairing Software Defects in Autonomous Systems.A small study investigated the potential benefits and research challenges related to the software components of future space vehicle designs. The study identified two potential research thrusts aimed at improving the resilience and reliability of sof ...http://www.ntis.gov/search/product.aspx?ABBR=ADA602024Crack-Inclusion Interaction: A Review.This report reviews the fundamentals of the interaction between a crack and an inclusion in engineering materials. After a discussion of inclusions and cracks and a brief historical review of work that lead to the solution, the report works through t ...http://www.ntis.gov/search/product.aspx?ABBR=ADA602076Design of Barricades to Prevent Prompt Propagation.Current requirements for determining the height of a barricade between two ammunition and explosives (AE) stacks are detailed in paragraph C5.3.2.3.2 of DoD 6055.9-STD, DoD Ammunition and Explosives Safety Standards . Two factors of these requirement ...http://www.ntis.gov/search/product.aspx?ABBR=ADA601798Enhancing Decision Topology Assessment in Engineering Design.Implications of decision analysis (DA) on engineering design are important and well-documented. However, widespread adoption has not occurred. To that end, the authors recently proposed decision topologies (TD) as a visual method for representing dec ...http://www.ntis.gov/search/product.aspx?ABBR=ADA601900Garrison Diversion Unit: North Dakota Jamestown Reservoir Area and Capacity TablesThe Jamestown Reservoir survey in July 2009 used the contour method to obtain the basic data for these tables. Close interval profiles of the underwater portion of the reservoir were collected by standard surveying techniques using a global positioni ...http://www.ntis.gov/search/product.aspx?ABBR=PB2014108650High-Order Methods for Computational Fluid Dynamics: A Brief Review of Compact Differential Formulations on Unstructured Grids.Popular high-order schemes with compact stencils for Computational Fluid Dynamics (CFD) include Discontinuous Galerkin (DG), Spectral Difference (SD), and Spectral Volume (SV) methods. The recently proposed Flux Reconstruction (FR) approach or Correc ...http://www.ntis.gov/search/product.aspx?ABBR=N140002886High-Order Space-Time Methods for Conservation Laws.Current high-order methods such as discontinuous Galerkin and/or flux reconstruction can provide effective discretization for the spatial derivatives. Together with a time discretization, such methods result in either too small a time step size in th ...http://www.ntis.gov/search/product.aspx?ABBR=N140002885Multi-Core Programming Design Patterns: Stream Processing Algorithms for Dynamic Scene Perceptions.We have implemented, tested, validated and benchmarked a scalable parallel implementations of the integral histogram algorithm critical for computer vision tasks for fast multiscale subwindow-based object searching, motion analysis and content-based ...http://www.ntis.gov/search/product.aspx?ABBR=ADA601942New Metamodeling Approach for Time-dependent Reliability of Dynamic Systems with Random Parameters Excited by Input Random Processes.We propose a new metamodeling method to characterize the output /201response/202 random process of a dynamic system with random parameters, excited by input random processes. The metamodel can be then used to efficiently estimate the time-dependent r ...http://www.ntis.gov/search/product.aspx?ABBR=ADA601992Numerical Modeling of Headcut Erosion in Auxiliary Spillway Channel at Glendo Dam Pick-Sloan Missouri Basin Program Oregon Trail Division - Glendo Unit - Wyoming May 2007 - October 2009.A new uncontrolled auxiliary spillway to be excavated through Brule siltstone at Glendo Dam, Wyoming was evaluated to determine the potential for headcut erosion in the unlined spillway channel. The SITES numerical model developed by USDA was used to ...http://www.ntis.gov/search/product.aspx?ABBR=PB2014106559Plant Model for Smart Projectiles.This report represents the first of two reports, each of which documents a portion of a larger project. The ultimate goal of the project is to produce an end-to-end smart-trajectory model. Presented in this report is the development of a plant model ...http://www.ntis.gov/search/product.aspx?ABBR=ADA601891Recent Development in the CESE Method for the Solution of the Navier-Stokes Equations Using Unstructured Triangular or Tetrahedral Meshes With High Aspect Ratio.In the multidimensional CESE development, triangles and tetrahedra turn out to be the most natural building blocks for 2D and 3D spatial meshes. As such the CESE method is compatible with the simplest unstructured meshes and thus can be easily applie ...http://www.ntis.gov/search/product.aspx?ABBR=N140002883Report: Physics Constrained Stochastic Statistical Models for Extended Range Environmental Prediction.The timing of the receipt of the MURI funds in August 2012 hampered the assembly of the full MURI team in this initial reporting period since typically post docs in applied math only became available for hiring after June, July, August, 2013. Despite ...http://www.ntis.gov/search/product.aspx?ABBR=ADA601833Stochastic Models of DNA Damage by High Energy Particles.No abstract available. ...http://www.ntis.gov/search/product.aspx?ABBR=N140002776Study of a Multi-Phase Hybrid Heat Exchanger-Reactor (HEX Reactor): Part 2 - Numerical Prediction of Thermal Performance (Postprint).Numerical models were developed to assess the thermal performance of a HEX reactor with solid-to-gas reacting flow. Based on the experimental results obtained in part I of this study, numerical models were developed to predict the thermal performance ...http://www.ntis.gov/search/product.aspx?ABBR=ADA601545Transfer Function Identification Using Orthogonal Fourier Transform Modeling Functions.A method for transfer function identification, including both model structure determination and parameter estimation, was developed and demonstrated. The approach uses orthogonal modeling functions generated from frequency domain data obtained by Fou ...http://www.ntis.gov/search/product.aspx?ABBR=N140002792Turn-Projected State-Based Conflict Resolution Algorithm.State-based conflict detection and resolution (CD&R) algorithms detect conflicts and resolve them on the basis on current state information without the use of additional intent information from aircraft flight plans. Therefore, the prediction of the ...http://www.ntis.gov/search/product.aspx?ABBR=N140003391Understanding Predictability of the Ocean.The long-term scientific goals of this research project are: 1. To develop an understanding of how some observations affect ocean predictability. 2. To further develop the state-of-the-art ROMS 4D-Var by extending the observational types and applicat ...http://www.ntis.gov/search/product.aspx?ABBR=ADA601836Wrappers for Performance Enhancement and Oblivious Decision Graphs.In this doctoral dissertation, we study three basic problems in machine learning and two new hypothesis spaces with corresponding learning algorithms. The problems we investigate are: accuracy estimation, feature subset selection, and parameter tunin ...http://www.ntis.gov/search/product.aspx?ABBR=ADA601756