| Practical Photonic Bandgap Calculations using MPB |
22 Feb 2013 |
32 pages |
| Authors:
Douglas V Nance; AIR FORCE RESEARCH LAB EGLIN AFB FL MUNITIONS DIRECTORATE
|
 | This report presents a series of calculations made by using the MIT Photonic Bands computer program to resolve the band structures or dispersion relations associated with a series of 2D and 3D photonic crystal lattices. We emphasis the development of techniques for drafting code input to allow the solution of more complicated crystal lattices that may not be easily described with normal code syntax. Due attention is paid to the ... |
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| Capability Portfolio Analysis Tool (CPAT) Verification and Validation Report |
Jan 2013 |
77 pages |
| Authors:
Lee Ewing; Robert F Dell; Molly MacCalman; Laura Whitney; NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF OPERATIONS RESEARCH
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| This technical review of the Capability Portfolio Analysis Tool (CPAT) was conducted by the Naval Postgraduate School at the request of the Program Executive Office Ground Combat Systems. The CPAT is intended to support Department of the Army portfolio resourcing and capabilities decisions for the ground combat fleet. The tool is designed to identify the optimum courses of action (cost, schedule, and performance) for portfolio investment. |
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| Applications of Lexical Link Analysis Web Service for Large-Scale Automation, Validation, Discovery, Visualization, and Real-Time Program Awareness |
23 Oct 2012 |
67 pages |
| Authors:
Ying Zhao; Shelley P Gallup; Douglas J MacKinnon; NAVAL POSTGRADUATE SCHOOL MONTEREY CA GRADUATE SCHOOL OF OPERATIONAL AND INFORMATION SCIENCES
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| DoD acquisition is an extremely complex system, composed of myriad stakeholders, processes, people, activities, and organizational structures. Processes within this complex system are encumbered by continuous creation of large amounts of unstructured and unformatted acquisition program data. Acquisition analysts and decision-makers must analyze this available data to obtain a complete and understandable picture. For those embedded within the complexities of the acquisition community, this effort represents a daunting, if not ... |
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| Multi-Model Validation in the Chesapeake Bay Region During Frontier Sentinel 2010 |
28 Sep 2012 |
45 pages |
| Authors:
Phillip Chu; Cheryl A Blain; Gregg Jacobs; Richard Allard; M K Cambazoglu; Frank Bub; Dennis Krynen; Robert S Linzell; NAVAL RESEARCH LAB STENNIS DETACHMENT STENNIS SPACE CENTER MS OCEANOGRAPHY DIV
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| In this report, we discuss the validation of water level and current predictions from three coastal hydrodynamic models and document the resource and operational requirements for each modeling system. The ADvanced CIRCulation Model (ADCIRC), the Navy Coastal Ocean Model (NCOM) and Delft3D have been configured and validated for the Chesapeake Bay region during a Navy exercise. Water level predictions are compared with a NOAA/NOS water level gauge at the Chesapeake ... |
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| Longitudinal Validation of Non-Cognitive Officer Selection Measures for the U.S. Army Officer Candidate School (OCS) |
Sep 2012 |
110 pages |
| Authors:
Matthew T Allen; Mark C Young; HUMAN RESOURCES RESEARCH ORGANIZATION ALEXANDRIA VA
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| This report provides recommendations regarding the implementation of Army Officer Candidate School (OCS) selection measures for enhancing performance and career continuance. The purpose of the present research was to validate an experimental selection battery called the Officer Background and Experiences Form (OBEF) against long-term (e.g., in-unit performance, service continuance) criterion measures. We collected long-term criterion measures for members of an officer cohort that had completed the OBEF upon entry into ... |
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| Time Series Analysis of Vegetation Change using Hyperspectral and Multispectral Data |
Sep 2012 |
97 pages |
| Authors:
Spencer A Wahrman; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
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| Grand Lake, Colorado has experienced a severe mountain pine beetle outbreak over the past twenty years. The aim of this study was to map lodgepole pine mortality and health decline due to mountain pine beetle. Multispectral data spanning a five-year period from 2006 to 2011 were used to assess the progression from live, green trees to dead, gray-brown trees. IKONOS data from 2011 were corrected to reflectance and validated against ... |
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| Validation of Virtual Environments Incorporating Virtual Operators for Procedural Learning |
Sep 2012 |
67 pages |
| Authors:
Brad Cain; Lochlan Magee; Courtney Kersten; DEFENCE RESEARCH AND DEVELOPMENT TORONTO (CANADA)
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| This paper presents the results of an experiment to assess the validity of a prototype simulation to train individuals to perform a task as part of a team. The application domain is Maritime Helicopter-Ship operations and the task selected is that of a Landing Signals Officer (LSO) coordinating the approach and landing of a helicopter onboard Canadian Forces frigates. The simulation includes physics-based models of the helicopter, ship, and the ... |
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| NAFDTD - A Near-field Finite Difference Time Domain Solver |
Sep 2012 |
62 pages |
| Authors:
Traian Dogaru; ARMY RESEARCH LAB ADELPHI MD SENSORS AND ELECTRON DEVICES DIRECTORATE
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| This report describes NAFDTD, a near-field finite difference time domain software package developed at the U.S. Army Research Laboratory (ARL). This program is based on the finite difference time domain (FDTD) method and is related to the AFDTD software. Unlike AFDTD, which is designed for radar signature analysis in the far field, NAFDTD is an electromagnetic solver for near field geometries. The differences between the two configurations receive particular attention, ... |
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| Validating Future Force Performance Measures (Army Class): In-Unit Performance Longitudinal Validation |
Sep 2012 |
135 pages |
| Authors:
Deirdre J Knapp; Kimberly S Owens; Matthew T Allen; HUMAN RESOURCES RESEARCH ORGANIZATION ALEXANDRIA VA
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| The Army needs the best personnel to meet the emerging demands of the 21st century. Accordingly, it is seeking recommendations on new predictor measures, in particular, measures of noncognitive attributes (e.g., interests, values, temperament) that could enhance entry-level Soldier selection and classification decisions. The U.S. Army Research Institute for the Behavioral and Social Sciences (ARI) conducted a longitudinal criterion-related validation research effort to collect data to inform these recommendations. Data ... |
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| Statistical Analysis and Storm Sampling Approach for Lakes Michigan and St. Clair, Great Lakes Coastal Flood Study, 2012 Federal Inter-Agency Initiative |
Sep 2012 |
156 pages |
| Authors:
Norberto C Nadal-Caraballo; Jeffrey A Melby; Bruce A Ebersole; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS COASTAL AND HYDRAULICS LAB
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| A new methodology is proposed for Great Lakes flood hazard mapping. The methodology includes a process for sampling and screening storm events and computing water level probabilities based on high-fidelity modeling of significant storm events. A technical analysis framework is provided to construct accurate extremal distributions of total water levels and to accurately estimate base flood elevations. High-resolution, high-fidelity modeling of all historical storm events is simply not feasible due ... |
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| Detection of Non-hazardous, Fluorescent Ricin-B Via an Immunoassay on Simulated Plastic Wings |
Sep 2012 |
18 pages |
| Authors:
Glenn Beatty; Asha Hall; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD VEHICLE TECHNOLOGY DIRECTORATE
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| As a schedule 1 controlled substance, ricin is one of the deadliest plant toxins in existence, and also one of the most easily weaponizable. This combination has resulted in a recent surge of studies proposing new and improved methods of detecting ricin, primarily involving aqueous phase immunoassays. Successive methods report higher binding affinities and correspondingly lower detection limits, but little research has addressed the potential for new modes of implementation, ... |
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| Model Validation for Simulations of Vehicle Systems |
16 Aug 2012 |
24 pages |
| Authors:
Hao Pan; Gregory Hulbert; Michael Kokkolaras; Matthew Castanier; David Lamb; FORD MOTOR CO DEARBORN MI
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| Outline: Classification of validation approaches, Bayesian interval hypothesis testing, Quantifying model confidence, Distribution-free approach by means of bootstrapping, Statistical power superiority, Validation benchmark problem, ARC-developed electro-thermal battery model validation, for energy & power community of interest application. |
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| Aircraft Derived Data Validation Algorithms |
06 Aug 2012 |
86 pages |
| Authors:
Brendon J Puntin; Thomas B Billingsley; Val M Heinz; Vincent A Orlando; Randall T Wiken; MASSACHUSETTS INST OF TECH LEXINGTON LINCOLN LAB
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| This document replaces ATC-337. US Military aircraft operating in civilian airspace are subject to the same avionics equipage requirements as civilian aircraft. To satisfy Air Traffic Control (ATC) mandates, aircraft flying in civilian airspace must be equipped with a Mode S Secondary Surveillance Radar (SSR) transponder that can provide aircraft-derived data when requested by a Mode S SSR. Equipage with a Mode S transponder and the reporting of aircraft call ... |
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| Victory Validation - An Introduction and Technical Overview |
06 Aug 2012 |
17 pages |
| Authors:
Venu Siddapureddy; ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI
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| Agenda: VICTORY Standards Process Overview, Validation Team Responsibilities, Experiment Guidelines and Philosophy, and Initial Validation Status. Summary: VICTORY Standards Process, Move from stove-pipe to shared services. Validation Team Responsibilities: Software Lead Responsibilities, Overall validation software, Experiment Lead, Overall experiment, Software Developer, Functional components. Validation Experiment Guidelines and Philosophy: Independent evaluation, Ensure the specifications: clear and complete, Provide reference functional components. Initial Validation Status: 136 specifications at proposed level, 69 capabilities. ... |
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| Model Validation for Simulations of Vehicle Systems |
Aug 2012 |
15 pages |
| Authors:
David Lamb; Matthew Castanier; Hao Pan; Michael Kokkolaras; Gregory Hulbert; MICHIGAN UNIV ANN ARBOR DEPT OF MECHANICAL ENGINEERING
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| This paper deals with model validation of dynamic systems (with vehicle systems being of particular interest) that have multiple time-dependent output. First, we review several validation methodologies that have been reported in the literature: graphical comparison, feature-based techniques, PDF/CDF based techniques, Bayesian posterior estimation, classical hypothesis testing and Bayesian hypothesis testing. We discuss their advantages and disadvantages in terms of several attributes: applicability to different types of models, need for ... |
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| Assessing the Tailored Adaptive Personality Assessment System (TAPAS) as an MOS Qualification Instrument |
Aug 2012 |
93 pages |
| Authors:
Christopher D Nye; Fritz Drasgow; Oleksandr S Chernyshenko; Stephen Stark; U C Kubisiak; Leonard A White; Irwin Jose; PERSONNEL DECISIONS RESEARCH INST (PDRI) INC TAMPA FL
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| This report examines whether the Tailored Adaptive Personality Assessment System (TAPAS) may be useful for selecting and classifying recruits into Military Occupational Specialties (MOS) and describes the two broad approaches that were taken to evaluate the measure for these purposes. TAPAS data for this research were collected from Army applicants at the Military Entrance Processing Stations (MEPS) between May 2009 and June 2011. In addition, criterion data were collected in ... |
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| Victory Validation - An Introduction and Technical Overivew |
Aug 2012 |
7 pages |
| Authors:
Nikia Williams; Venu Siddapureddy; Doyle Dennis; Kase Saylor; Brian Fairburn; ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI
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| For most standards bodies, the validation and maturation process is dependent on motivated members of the standards community to develop reference systems or components and to provide the governing body with the necessary data and details to support maturing a given specification or set of specifications. Although this has worked well for other standards bodies, the VICTORY Standards Support Office (VSSO) recognized early that validation would be key in rapidly ... |
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| Statistical Mechanics-Inspired Modeling of Heterogeneous Packet Transmission in Communication Networks |
Aug 2012 |
13 pages |
| Authors:
Soumik Sarkar; Kushal Mukherjee; Asok Ray; Abhishek Srivastav; Thomas A Wettergren; PENNSYLVANIA STATE UNIV STATE COLLEGE DEPT OF MECHANICAL ENGINEERING
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| This paper presents the qualitative nature of communication network operations as abstraction of typical thermodynamic parameters (e.g., order parameter, temperature, and pressure). Specifically, statistical mechanics-inspired models of critical phenomena (e.g., phase transitions and size scaling) for heterogeneous packet transmission are developed in terms of multiple intensive parameters, namely, the external packet load on the network system and the packet transmission probabilities of heterogeneous packet types. Network phase diagrams are constructed ... |
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| TARDEC's Victory Systems Integration Laboratory (SIL) is a Key Tool for Advancing Standardized Ground Vehicle Electronic Architecture |
Aug 2012 |
7 pages |
| Authors:
Nikia Williams; Venu Siddapureddy; Leonard Elliott; Nathan Ellis; Patrick Griffin; Steve Reddmann; Heather Berry; Mark Russell; ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI
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| The Vehicular Integration for C4ISR/EW Interoperability (VICTORY) Systems Integration Lab (SIL) is established and developed at the U.S. Army Tank-Automotive Research, Development, and Engineering Command (TARDEC). The VICTORY SIL will be utilized for the development and integration of the extensive set of C4ISR/EW technologies that are to be systematically down selected to provide the comprehensive VICTORY services & infrastructure required in the development of mission capabilities of the Army's tactical ... |
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| Virtual Manufacturing of Composite Structures for Ground Platforms, A DARPA Instant Foundry Adaptive Through Bits (iFAB) Program |
Aug 2012 |
67 pages |
| Authors:
Shridhar Yarlagadda; DELAWARE UNIV NEWARK CENTER FOR COMPOSITE MATERIALS
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| This effort focused specifically on the Liquid Composite Molding (LCM) class of processes as they are the ideal processes for medium to large scale components for ground platforms. UD-CCM has long history of fabricating composite structures for ground vehicles using these processes and the Figure below shows some examples of components fabricated over the years. The goal in this effort is to link composites design with process modeling, enabling the ... |
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| Multi-Yield Radio Frequency Countermeasures Investigations and Development (MYRIAD) Task Order 006: Integrated Multi-Modal RF Sensing |
Aug 2012 |
172 pages |
| Authors:
Mark L Brockman; Steven Kay; Quan Ding; Sean M O'Rourke; A L Swindlehurst; Antonia Papandreou-Suppappola; Ram M Narayanan; Surendra S Bhat; RHODE ISLAND UNIV KINGSTON
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| The Integrated Multi-Modal RF Sensing (IMMRF) effort performed basic research to examine key parameters of integrated multi-modal RF sensor design and algorithm development. A statistical framework for the program was developed, which ensured the overall statistical validity of the approaches. Dynamic waveform design for agile RF sensing, enhanced detection capabilities, and optimized tracking performance was investigated. Approaches were developed for using multiple, spatially distributed, adaptive multi-modal sensors for multiple target ... |
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| Launcher Dynamic Data Acquisition |
31 Jul 2012 |
33 pages |
| Authors:
WHITE SANDS MISSILE RANGE NM
|
| This TOP provides guidance and procedures for acquiring dynamic transient mechanical and thermal data (shock, vibration, displacement, strain, acoustics, pressure, and temperature) of launchers, associated ground equipment (i.e., missile loaders, control stations, and generators), and the launch area during stationary firings of ground launched rockets and missiles. Guidance is provided for the appropriate properties, installation, and use of transducers, wiring, signal conditioning, signal filtering, and digital data acquisition systems. Procedures ... |
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| Interinstrument Variability and Validation Study for the XMX/2L-MIL Biological Air Sampler |
13 Jul 2012 |
13 pages |
| Authors:
Jon E Black; Casey W Cooper; SCHOOL OF AEROSPACE MEDICINE WRIGHT PATTERSON AFB OH
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| The interinstrument variability of the XMX/2L-MIL (XMX) biological air sampler was controlled by operating it with a fixed final nozzle orientation. Three XMXs were operated in a 12-m3 aerosol test chamber (ATC) in which a Bacillus globigii (Bg) aerosol was uniformly distributed for 18 experimental trials. An analysis of variance (ANOVA) was performed on the XMX results and had an Fvalue of 0.36, compared to the F-critical of 3.22 for ... |
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| Investigation of ELF Signals Associated with Mine Warfare: A University of Idaho and Acoustic Research Detachment Collaboration, Phase Three |
Jul 2012 |
|
| Authors:
Jeffrey L Young; Christopher L Wagner; IDAHO UNIV MOSCOW DEPT OF ELECTRICAL ENGINEERING
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 | Described herein are the key findings and results associated with the project entitled Investigation of ELF Signals Associated with Mine Warfare, A University of Idaho and Acoustic Research Detachment Collaboration, Phase Three. Phase Three is a continuation of the Phase One and Two efforts under the same title [ADA500756, ADA529570]. The questions that are being asked in this investigation are: 1) once an ELF signal is generated, how far will ... |
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| Chemical Agent Resistant Coating Topcoat Usage: Drivers and Trends |
Jul 2012 |
28 pages |
| Authors:
William Lum; Daniel Pope; John Escarsega; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE
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| This report describes the factors that affect the chemical agent resistant coating (CARC) production batches used by the U.S. Army and Marine Corps. CARC is used on exterior surfaces of all joint services equipment as mandated by the U.S. Army Regulation 750-1 doctrine. The U.S. Army Research Laboratory evaluates and validates all CARC batches from the manufacturers of CARC products listed in the qualified product database. The batch approval data ... |
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| Dynamic Heat Generation Modeling and Thermal Management of Electromechanical Actuators |
Jul 2012 |
122 pages |
| Authors:
Louis Chow; Thomas Wu; Yeong-Ren Lin; Yang Hu; David Woodburn; Ray Zhou; Jared Bindl; Wendell Brokaw; Tony Camarano; UNIVERSITY OF CENTRAL FLORIDA ORLANDO
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| The heat loads in an electromechanical actuator (EMA) and an electronic unit (EU) are highly transient and localized in nature; therefore, thermal management systems (TMS) designed for time-averaged, uniform heat loads of an EMA and EU are inadequate. The heat loads of EMAs must be accurately determined and managed if EMAs are to be used as replacements to current hydraulic actuators. This report presents a dynamic heat generation model and ... |
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| Verification and Validation of ICME Methods and Models for Aerospace Applications |
11 Jun 2012 |
17 pages |
| Authors:
Bradford Cowles; Dan Backman; Rollie Dutton; AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH
|
| Integrated Computational Materials Engineering (ICME) model verification and validation (V&V) is difficult because materials processing, microstructural evolution, and property development contain a rich mix of length and time scales with an equally complex set of interacting phenomena and mechanisms. Beyond these difficulties, engineers who adapt these models rarely generate independent validation data sets to confirm model adequacy, quantify uncertainty, and identify potential error sources. Even when a validation data set ... |
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| Target Detection and Classification Using Seismic and PIR Sensors |
Jun 2012 |
11 pages |
| Authors:
Xin Jin; Soumalya Sarkar; Asok Ray; Shalabh Gupta; Thyagaraju Damarla; PENNSYLVANIA STATE UNIV STATE COLLEGE DEPT OF MECHANICAL AND NUCLEAR ENGINEERING
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| Unattended ground sensors (UGS) are widely used to monitor human activities, such as pedestrian motion and detection of intruders in a secure region. Efficacy of UGS systems is often limited by high false alarm rates, possibly due to inadequacies of the underlying algorithms and limitations of onboard computation. In this regard, this paper presents a wavelet-based method for target detection and classification. The proposed method has been validated on data ... |
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| Designing a Standard Model for Development and Execution of an Analysis Project Plan |
Jun 2012 |
79 pages |
| Authors:
Leslie T Willis; NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF SYSTEMS ENGINEERING
|
| Within the Operational Simulation and Analysis (OS&A) branch of the U.S. Army Armament Research, Development, and Engineering Center (ARDEC) at Picatinny Arsenal, there exists no standard model for development and execution of an Analysis Project Plan. A project plan is a formal document which, when agreed upon by the parties involved, guides the execution and control of a project. Having such a plan is important to the OS&A branch and ... |
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| Development and Validation of a PTSD-Related Impairment Scale |
Jun 2012 |
39 pages |
| Authors:
Brian Marx; VETERANS ADMINISTRATION MEDICAL CENTER BOSTON MA
|
| Our goal is to design and validate an inventory to assess multiple dimensions of PTSD-related functional impairment experienced by active duty service members and veterans . A series of focus groups and individual assessments using interviews and self-report questionnaires were used to understand the multiple domains of functional impairment. Utilizing this information, the 80- item Inventory of Psychosocial Functioning (IPF) was developed, as well as a brief 14-item version. The ... |
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| NATO Guide for Judgement-Based Operational Analysis in Defence Decision Making (Guide OTAN pour l'analyse operationnelle basee sur le jugement dans la prise de decision de defense). Analyst-Oriented Volume: Code of Best Practice for Soft Operational Analy |
Jun 2012 |
162 pages |
| Authors:
NATO RESEARCH AND TECHNOLOGY ORGANIZATION NEUILLY-SUR-SEINE (FRANCE)
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| Judgment plays an important role in all Operational Analysis (OA). NATO practitioners have determined that approaches in OA that are based on human judgement are increasingly critical to defence decision making. The purpose of the NATO Guide for Judgement-Based OA in Defence Decision Making is to create an understanding of what judgement-based OA is; to clarify what this type of analysis can do to help address problematic situations, and what ... |
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| U.S. COIN Doctrine: Betting the Future on a Too Distant Past |
17 May 2012 |
57 pages |
| Authors:
Christopher J Byrd; ARMY COMMAND AND GENERAL STAFF COLL FORT LEAVENWORTH KS SCHOOL OF ADVANCED MILITARY STUDIES
|
| While the outcome of the Iraq war seems to have validated the U.S. Army's counterinsurgency manual, FM 3-24, the war in Afghanistan seems to indicate there are fundamental problems associated with its historical principles and concepts. Dr. Kilcullen and Dr. Gorka in An Actor-centric Theory of War: Understanding the Difference Between COIN and Counterinsurgency claim that the historical cases upon which the COIN doctrine was based were too limited and ... |
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| Algorithms for Ground Soldier Based Simulations and Decision Support Applications. Phase 1 |
07 May 2012 |
37 pages |
| Authors:
Steve Borkman; Marlo Verdesca; Jon Watkins; DIGNITAS TECHNOLOGIES LLC ORLANDO FL
|
| Report developed under Small Business Innovation Research contract. This report describes the results of the research conducted by Dignitas Technologies, LLC, from January 2011 to July 2011, under the Algorithms for Ground Soldier Based Simulations and Decision Support Applications (Tactical Aids) Phase I Small SBIR contract awarded by the Natick Soldier Research, Development and Engineering Center. Dignitas identified, designed and documented detailed methodology descriptions for two terrain reasoning algorithms (Agent ... |
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| Modeling the Hydrodynamics and Water Quality of the Lower Minnesota River Using CE-QUAL-W2: A Report on the Development, Calibration, Verification, and Application of the Model |
May 2012 |
196 pages |
| Authors:
David L Smith; Tammy L Threadgill; Catherine E Larson; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS ENVIRONMENTAL LAB
|
| The U.S. Army Engineer Research and Development Center (USACE ERDC) Environmental Lab (EL) and Metropolitan Council Environmental Services (MCES) developed an advanced water quality model of the Lower Minnesota River (Jordan, Minnesota, to the mouth) using the CE-QUAL-W2 modeling framework. This portion of the river is a highly impaired system with a very rich set of monitored data. Model development consisted of calibration and validation of seven water years: 1988 ... |
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| Quantitative Analysis of a Hybrid Electric HMMWV for Fuel Economy Improvement |
May 2012 |
11 pages |
| Authors:
Abul Masrur; Robert Smith; Ashok Nedungadi; SOUTHWEST RESEARCH INST SAN ANTONIO TX
|
| This paper presents a quantitative analysis and comparison of fuel economy and performance of a series hybrid electric HMMWV (High Mobility Multi-purpose Wheeled Vehicle) military vehicle with a conventional HMMWV of equivalent size. Hybrid vehicle powertrains show improved fuel economy gains due to optimized engine operation and regenerative braking. In this paper, a methodology is presented by which the fuel economy gains due to optimized engine are isolated from the ... |
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| External Validity: From Do-calculus to Transportability Across Populations |
May 2012 |
23 pages |
| Authors:
Judea Pearl; Elias Bareinboim; CALIFORNIA UNIV LOS ANGELES DEPT OF COMPUTER SCIENCE
|
| The generalizability of empirical findings to new environments settings or populations, often called external validity is essential in most scientific explorations. This paper treats a particular problem of generalizability, called transportability defined as a license to transfer causal effects learned in experimental studies to a new population in which only observational studies can be conducted. We introduce a formal representation called selection diagrams for expressing knowledge about differences and commonalities ... |
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| Affordability Engineering Framework Overview |
30 Apr 2012 |
39 pages |
| Authors:
SCOTT ANDERSON; Virginia Wydler; Joe Duquette; MITRE CORP BEDFORD MA
|
| The current economic environment and mounting federal budget deficits are placing considerable economic stress on the Department of Defense (DoD) and other government agencies. Investments for new capabilities, upgrades, and enhancements to existing systems as well as simple continuations of existing programs require careful analysis and evaluation of their affordability, efficiency, and effectiveness. The Affordability Engineering Framework (AEF) is being designed to help the DoD respond to these imminent fiscal ... |
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| Multiresolution Algorithms for Processing Giga-Models: Real-time Visualization, Reasoning, and Interaction |
23 Apr 2012 |
11 pages |
| Authors:
Ming C Lin; Dinesh Manocha; NORTH CAROLINA UNIV AT CHAPEL HILL
|
| 3D digital models of complex systems is often used to reduce design time, lower testing and validation cost, perform virtual rehearsal'', and rapid visualization of intricate datasets of varying scale: from nanometer-sized objects (e.g. nanoscale robots, storage devices and nanowheels), biological entities (e.g. human bodies), physical systems (e.g. chemical propagation), environmental data (e.g. terrain and urban environments), to large-scale man-made computer-aided design (CAD) structures (e.g. unmanned aerial vehicles, tanks and ... |
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| Engineer Brigade Validates with Mobile Training Team |
Apr 2012 |
4 pages |
| Authors:
David G Crews; Donald J Kenney; Rory S Seppanen; ARMY ENGINEER SCHOOL FORT LEONARD WOOD MO
|
| Today's nonlinear battlefield is fluid and changes rapidly, requiring Soldiers to adapt quickly. Tactics, techniques, and procedures (TTP) sometimes change faster than stateside training can support; and equipment may become obsolete before it is even used. As the U.S. Army refines its TTP, adversaries adjust their own TTP to counter ours. Mission success depends on understanding and using the capabilities of the combined arms set available in theater. When Soldiers ... |
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| Novel Heat Transfer Device Research |
Apr 2012 |
16 pages |
| Authors:
Ryan E Mikus; Kenneth D Kihm; AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH AIR VEHICLES DIR/STRUCTURES DIV/ADVANCED STRUCTURAL CONCEPTS BRANCH
|
| Qu Tubes or Advanced Thermal Transport Devices (ATTD's) use a new heat transfer principal and are believed to be superior to standard heat pipes. Inventor claims that the ATTD's are entirely dry on the inside and consist of three thin layers of material and a powder. Other claims state that the ATTD's act independently of gravity, exhibit very high conductivity, work over large distances and temperature ranges, and operate at ... |
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| Risk-Based Tailoring of the Verification, Validation, and Accreditation/Acceptance Processes (Adaptation fondee sur le risque, des processus de verification, de validation, et d'accreditation/d'acceptation) |
Apr 2012 |
150 pages |
| Authors:
NATO RESEARCH AND TECHNOLOGY ORGANIZATION NEUILLY-SUR-SEINE (FRANCE)
|
| MSG-054/TG-037 was tasked to finalize an overlay standard for Verification, Validation, and Accreditation (VV&A) of Federations and then formalize the draft as an international industry standard by vetting the document through the Institute of Electrical and Electronics Engineers Standards Association's (IEEE-SA) standards processes. Additionally, foundational work was produced and documented on applying risk as a tailoring mechanism for the VV&A overlay. |
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| Validation of the NOAA Space Weather Prediction Center's Solar Flare Forecasting Look-Up Tables and Forecaster Issued Probabilities (Preprint) |
30 Mar 2012 |
18 pages |
| Authors:
Misty D Crown; AIR FORCE RESEARCH LAB KIRTLAND AFB NM SPACE VEHICLES DIRECTORATE
|
| This paper provides an assessment of the operational solar flare look-up table currently in use at the National Oceanic and Atmospheric Administration (NOAA) Space Weather Prediction Center (SWPC) during solar cycle 23 (May 1996 December 2008). To assess the value of human interaction, a validation of subjective flare probability forecasts was conducted and compared to the results obtained from the look-up tables. Probabilistic flare forecasts were evaluated using the Brier ... |
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| Integration, Testing, and Validation of a Small Hybrid-Electric Remotely-Piloted Aircraft |
22 Mar 2012 |
282 pages |
| Authors:
Joseph K Ausserer; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH GRADUATE SCHOOL OF ENGINEERING AND MANAGEMENT
|
| Parallel hybrid-electric technology offers a wide variety of new mission capabilities including low-observable loiter operations and increased fuel efficiency for small remotely-piloted aircraft. This research focused on the integration, validation, and testing of a hybrid-electric propulsion system consisting of commercially available components to fabricate a small remotely-piloted aircraft capable of extended low-observable operation. Three novel aspects contributed to the success of the design: optimization of the propulsive components to the ... |
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| Optimum Concentration Ratio Analysis Using Dynamic Thermal Model for Concentrated Photovoltaic System |
22 Mar 2012 |
129 pages |
| Authors:
II Avrett John T; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH GRADUATE SCHOOL OF ENGINEERING AND MANAGEMENT
|
| Concentrated photovoltaic (PV) technology represents a growing market in the field of terrestrial solar energy production. As the demand for renewable energy technologies increases, further importance is placed upon the modeling, design, and simulation of these systems. Given the U.S. Air Force cultural shift towards energy awareness and conservation, several concentrated PV systems have been installed on Air Force installations across the country. However, there has been a dearth of ... |
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| Global Ocean Forecast System V3.0 Validation Test Report Addendum: Provision of Boundary Conditions to the Relocatable Navy Coastal Ocean Model (NCOM) |
21 Mar 2012 |
55 pages |
| Authors:
E Metzger; P G Thoppil; G Peggion; D S Franklin; O M Smedstad; NAVAL RESEARCH LAB STENNIS DETACHMENT STENNIS SPACE CENTER MS OCEANOGRAPHY DIV
|
| One of the primary functions of the Global Ocean Forecast System (GOFS) Version 3.0 (V3.0) (consisting of the 1/12 deg global HYbrid Coordinate Ocean Model (HYCOM) that employs the Navy Coupled Ocean Data Assimilation (NCODA)) is to provide boundary conditions (BCs) to higher horizontal and vertical resolution regional nested ocean models, such as the Relocatable (Relo) Navy Coastal Ocean Model (NCOM). This document can be viewed as both a User?s ... |
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| Automated, Certified Program-rewriting for Software Security Enforcement |
05 Mar 2012 |
10 pages |
| Authors:
Kevin W Hamlen; TEXAS UNIV AT DALLAS RICHARDSON
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| This project discovered and developed algorithms and tools for (1) automatically retrofitting binary legacy software with access controls, and (2) formally machine-certifying that the retrofitted software satisfies user-specified security policies. The research resulted in new software security systems for Java, ActionScript. and x86 native code that provably secure legacy code without any form of code-producer cooperation (e.g., source code or compiler support). |
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| Analysis of KC-46 Live-Fire Risk Mitigation Program Testing |
Mar 2012 |
89 pages |
| Authors:
Chad N Chamberlain; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH GRADUATE SCHOOL OF ENGINEERING AND MANAGEMENT
|
| Increased emphasis from the Director of Operational Test and Evaluation (DOT&E) over the past few years to include statistical rigor in all testing has brought an augmented look at testing across the Department of Defense. This thesis examines the methodology currently used in live fire testing, particularly in the case of risk mitigation of the KC-46 dry-bay fire test program. The thesis addresses gaps within the methodology and analyzes the ... |
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| Validation of the Chemistry Module for the Euler Solver in Unified Flow Solver |
Mar 2012 |
109 pages |
| Authors:
Jr Humphrey William C; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH GRADUATE SCHOOL OF ENGINEERING AND MANAGEMENT
|
| In the world of computational fluid dynamics (CFD), three main types of flow regimes exist: continuum, rarified, and free molecular. Of these regimes, the rarified regime is the most difficult to model because the continuum equations don't apply and using the Boltzmann equation is too computationally expensive to use. The Unified Flow Solver (UFS) is currently being developed to solve this problem by using the kinetic continuum Euler equations where ... |
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| Verification and Validation of the Malicious Activity Simulation Tool (MAST) for Network Administrator Training and Evaluation |
Mar 2012 |
111 pages |
| Authors:
Justin M Neff; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
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| The DoD currently employs red teams to conduct network infiltration and security training for network administrators and operators. Red Teams provide the most realistic and thorough training to defend against real-world threats and we are developing a system to mimic this highly trained adversary based on the proof of concept framework developed by CDR Will Taff and LCDR Paul Salevski. This thesis is meant to perform a verification and validation ... |
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| Discovery and Validation of Proteomic Biomarkers for Radiation Exposure |
Feb 2012 |
14 pages |
| Authors:
Shane Wang; Joseph Wu; STANFORD UNIV CA GEBALLE LAB FOR ADVANCED MATERIALS
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| The overall objective of this project is to further advance the fundamental knowledge base for new and existing proteomic biomarkers that can assess the type and amount of radiation exposure rapidly (in about one hour), sensitively (at protein concentration of 0.1 ng/mL or less), and inexpensively. |
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Reports by Keyword(s)
VALIDATION
