| Enhancing Simulation-Based Training Adversary Tactics via Evolution (ESTATE) |
15-Dec-2009 |
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| Authors:
Brad Rosenberg; CHARLES RIVER ANALYTICS INC CAMBRIDGE MA
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 | During this reporting period work has concentrated on Task 4: Develop Trainee Model Processing. We focused on working on mining the existing MoneyBee data from our academic partner, Brandeis University, to examine student performance and began to construct a way to create a representation of strategies for future research. |
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| Comparisons of Monthly Mean 10 M Wind Speeds from Satellites and NWP Products Over the Global Ocean |
09-Oct-2009 |
15 pages |
| Authors:
Charlie Barron; E J Metzger; Alan J Wallcraft; Ahmet B Kara; R Pauley; M Bourassa; NAVAL RESEARCH LAB STENNIS SPACE CENTER MS OCEANOGRAPHY DIV
|
 | The accuracy of wind speed at 10 m above the sea surface from two satellite and three numerical weather prediction (NWP) products is investigated over the global ocean. Rain-free equivalent neutral winds from the Quick Scatterometer (QuikSCAT) are converted to stability-dependent winds to be consistent with those from NWP products and are taken as truth in comparisons to winds from other products. Quantitative statistical analyses presented at each grid point ... |
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| Application of Dual-Tree Complex Wavelet Transforms to Burst Detection and RF Fingerprint Classification |
Sep-2009 |
150 pages |
| Authors:
Randall W Klein; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH GRADUATE SCHOOL OF ENGINEERING AND MANAGEMENT
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| This work addresses various Open Systems Interconnection (OSI) Physical (PHY) layer mechanisms to extract and exploit RF waveform features (fingerprints) that are inherently unique to specific devices and that may be used to provide hardware specific identification (manufacturer, model, and/or serial number). This is addressed by applying a Dual-Tree Complex Wavelet Transform (DT-CWT) to improve burst detection and RF fingerprint classification. A Denoised VT technique is introduced to improve performance ... |
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| Decision Process to Identify Lessons for Transition to a Distributed (or Blended) Learning Instructional Format |
Sep-2009 |
175 pages |
| Authors:
Thomas R Graves; William R Bickley; ARMY RESEARCH INST FOR THE BEHAVIORAL AND SOCIAL SCIENCES FORT BENNING GA RESEARCH UNIT
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| The U.S. Army Infantry School, Office of the G-3, asked the Army Research Institute to evaluate the course content of 51 programs of instruction (n=2,065 lessons) for potential transition to a distributed learning instructional format. Using a mixed-method coding and analysis approach, the sample of POIs were categorized, coded, statistically analyzed, and a decision-process was developed to classify lessons into fully transitionable, partially transitionable or not transitionable groups. The thematic ... |
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| Frigate Defense Effectiveness in Asymmetrical Green Water Engagements |
Sep-2009 |
151 pages |
| Authors:
Heiko Abel; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
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| Asymmetric threats pose increasing challenges to combatant commanders in Stability, Security, Transition, and Reconstruction (SSTR) Operations. Threats once confined to littoral waters now extend out to the green water theater. Many NATO countries operate their post Falkland war built frigates in these missions, in which lightly armed small, agile and fast craft are often encountered. This study uses freely available real-world data to build a simulation using an agent-based modeling ... |
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| Comparisons of Monthly Mean 10 m Wind Speeds from Satellites and NWP Products over the Global Ocean |
Aug-2009 |
15 pages |
| Authors:
E J Metzger; A J Wallcraft; C N Barron; A B Kara; R L Pauley; M A Bourassa; NAVAL RESEARCH LAB STENNIS SPACE CENTER MS OCEANOGRAPHY DIV
|
| The accuracy of wind speed at 10 m above the sea surface from two satellite and three numerical weather prediction (NWP) products is investigated over the global ocean. Rain-free equivalent neutral winds from the Quick Scatterometer (QuikSCAT) are converted to stability-dependent winds to be consistent with those from NWP products and are taken as truth in comparisons to winds from other products. Quantitative statistical analyses presented at each grid point ... |
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| The Use of a Context-Based Information Retrieval Technique |
Jul-2009 |
58 pages |
| Authors:
Agata McCormac; Kathryn Parsons; Marcus Butavicius; Simon Dennis; Lael Ferguson; DEFENCE SCIENCE AND TECHNOLOGY ORGANISATION EDINBURGH (AUSTRALIA) COMMAND CONTROL COMMUNICATIONS AND INTELLIGENCE DIV
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| Since users are faced with an ever increasing amount of data, fast and effective retrieval of required information is of vital importance. This aim of this study was to examine whether the results provided by a keyword-based technique would be improved through the use of two Latent Semantic Analysis (LSA) techniques. Participants were required to highlight query terms from within documents; one LSA technique utilized the sentence of the query ... |
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| Assessment of EEG Signal Quality in Motion Environments |
Jun-2009 |
36 pages |
| Authors:
Kaleb McDowell; Scott E Kerick; Kelvin S Oie; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD HUMAN RESEARCH AND ENGINEERING DIRECTORATE
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| Assessing the neurocognitive demands of humans operating in real-world environments is critical for understanding Soldier performance. However, the capability to reliably measure brain dynamics of Soldiers in operational environments is a major challenge because of inherent artifacts in real environments. This study quantified the integrity of electroencephalographic (EEG) signals as a function of varied motion artifacts that are characteristic of realistic environments. Participants performed a standard auditory discrimination task in ... |
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| Indicators, Predictors, and Determinants of Conflict Escalation and De-escalation. A Review of the Psychological Literature |
May-2009 |
82 pages |
| Authors:
Michael Stewart; Peter Suedfeld; Ryan W Cross; BRITISH COLUMBIA UNIV VANCOUVER DEPT OF PSYCHOLOGY
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| This paper reviews psychological theories and quantitative research aimed at the explanation and prediction of decision-making by national and sub-national leaders. Inferences of the strategic intentions of leaders are based on the assessment at a distance of both their stable and changing cognitive, motivational, and emotional processes. The review evaluates profiling approaches, which develop a portrait of the subject's personality as the source of strategic predispositions, and dynamic approaches, which ... |
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| Recognizing Connotative Meaning in Military Chat Communications |
Apr-2009 |
9 pages |
| Authors:
Sharon M Walter; Emily R Budlong; Ozgur Yilmazel; AIR FORCE RESEARCH LAB ROME NY INFORMATION DIRECTORATE
|
| Over the last five to seven years the use of chat in military contexts has expanded quite significantly, in some cases becoming a primary means of communicating time-sensitive data to decision makers and operators. For example, during humanitarian operations with Joint Task Force-Katrina, chat was used extensively to plan, task, and coordinate predeployment and ongoing operations. The informal nature of chat communications allows the relay of far more information than ... |
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| New Theory and Algorithms for Compressive Sensing |
06-Mar-2009 |
17 pages |
| Authors:
Richard G Baraniuk; RICE UNIV HOUSTON TX
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| In this project we expanded the field of compressive sensing in both theoretical and practical ways. We first demonstrated the information scalability of CS. We applied CS principles to analog-to-digital conversion, showing ADC can be accomplished on structured high rate signals with sub-Nyquist sampling. We introduced a smashed filter to perform statistical classification problems with a rate of measurements that corresponds to the problem structure, rather than bandwidth. Second, we ... |
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| Factors of Safety for Richardson Extrapolation |
Mar-2009 |
65 pages |
| Authors:
Fred Stern; Tao Xing; IOWA UNIV IOWA CITY IIHR - HYDROSCIENCE AND ENGINEERING
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| A factor of safety (FS) method for quantitative estimates of grid/time uncertainties for CFD solutions is derived to remove the deficiencies of GCI, corrected GCI(sub C), and correction factor (CF) methods, i.e., unreasonably small uncertainty when CF 1 (estimated order of accuracy greater than theoretical) and lack of statistical analysis to prove 95% confidence for the estimated uncertainties to bound the true error. The approach follows the CF method but ... |
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| Evaluation of an OPNET Model for Unmanned Aerial Vehicle Networks |
Mar-2009 |
105 pages |
| Authors:
Clifton M Durham; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT
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| Over the last few years, there has been an explosion in the use of Unmanned Aerial Vehicles (UAVs) in military operations, as well as civilian and commercial applications. UAV Mobile Ad Hoc Networks are fast becoming essential to conducting Network-Centric Warfare. As of October 2006, coalition UAVs, exclusive of hand-launched systems, had flown almost 400,000 flight hours in support of Operations Enduring Freedom and Iraqi Freedom. This document outlines our ... |
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| A Statistical-Dynamical Approach to Intraseasonal Prediction of Tropical Cyclogenesis in the Western North Pacific |
Mar-2009 |
129 pages |
| Authors:
Bryan D Mundhenk; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
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| We have developed a combined statistical-dynamical prediction scheme to predict the probability of tropical cyclone (TC) formation at daily, 2.5 degree horizontal resolution across the western North Pacific at intraseasonal lead times. Through examination of previous research and our own analysis, we chose five variables to represent the favorability of the climate system to support tropical cyclogenesis. These so-called large-scale environmental factors (LSEFs) include: low-level relative vorticity, sea surface temperature, ... |
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| An Experiment to Evaluate Transfer of Low-Cost Simulator-Based Upset-Recovery Training |
Mar-2009 |
20 pages |
| Authors:
Albert Boquet; Cass Howell; Charles DeJohn; Rodney O Rogers; FEDERAL AVIATION ADMINISTRATION WASHINGTON DC OFFICE OF AVIATION MEDICINE
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| Many air transport training programs provide simulator-based upset-recovery instruction for company pilots. However, apparently no prior research exists to demonstrate that such training transfers to an airplane in flight. We report on two-phase FAA-funded research experiment to evaluate upset-recovery training transfer. In two separate training/testing evolutions involving two different general aviation aircraft, participant pilots were trained using low-cost desktop flight simulation, then subjected to serious in-flight upsets in an aerobatic ... |
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| Characterizing and Detecting Unrevealed Elements of Network Systems |
Mar-2009 |
158 pages |
| Authors:
James A Leinart; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT
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| This dissertation addresses the problem of discovering and characterizing unknown elements in network systems. It is not uncommon to have incomplete knowledge of network systems due to either passive circumstances, e.g. limited resources to observe a network, or active circumstances, e.g. intentional acts of concealment, or some combination of active and passive influences. This research suggests statistical and graph theoretic approaches for such situations, including those in which nodes are ... |
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| The High Angular Resolution Multiplicity of Massive Stars |
Feb-2009 |
21 pages |
| Authors:
Brian D Mason; Douglas R Gies; William I Hartkopf; Todd J Henry; John W Helsel; NAVAL OBSERVATORY WASHINGTON DC
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| We present the results of a speckle interferometric survey of Galactic massive stars that complements and expands upon a similar survey made over a decade ago. The speckle observations were made with the Kitt Peak National Observatory and Cerro Tololo Inter-American Observatory 4 m telescopes and USNO speckle camera, and they are sensitive to the detection of binaries in the angular separation regime between 0.03 and 5 with relatively bright ... |
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| Two-Point Scalar Time-Series Measurements in Turbulent Partially Premixed Flames |
Feb-2009 |
24 pages |
| Authors:
Galen B King; Normand M Laurendeau; Michael W Renfro; PURDUE UNIV LAFAYETTE IN SCHOOL OF MECHANICAL ENGINEERING
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| The technique of Picosecond Time-Resolved Laser-Induced Fluorescence (PITL1F) was expanded to enable two-point hydroxyl (OH) series concentration time series measurements of turbulent jet flames. Measurements were obtained with two-point separation along the radial direction of the jet (delta r), i.e., the propagation direction of the horizontal laser beam, as well as axial two-point separations, i.e. along the axis of the jet, i.e., the z-direction. As the jet configuration is statistically ... |
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| Modeling for Semi-Autonomous Control of Cooperative Vehicles |
15-Jan-2009 |
22 pages |
| Authors:
Mark E Campbell; CORNELL UNIV ITHACA NY
|
| This report details work completed in an AFOSR program focused on semi-autonomous control of cooperative vehicles. Coupled operator-multiple vehicle systems are modeled in a unified framework using probabilistic graphs to yield a methodology for analyzing semi-autonomous systems. The framework uses conditional probabilistic dependencies between elements, leading to a Bayesian network with probabilistic evaluation capability. Both discrete and continuous human decisions are modeled using statistical tools such as softmax and discrete, ... |
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| Math Science Partnership of Southwest Pennsylvania: Measuring Progress Toward Goals |
Jan-2009 |
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| Authors:
Stuart S Olmsted; Kun Yuan; John F Pane; Valerie L Williams; Eleanor Spindler; Mary E Slaughter; RAND EDUCATION SANTA MONICA CA
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| In 2003, the Allegheny Intermediate Unit received a grant under the National Science Foundation's Math and Science Partnership program to establish the Math Science Partnership of Southwest Pennsylvania (MSP). The MSP brings together regional K-12 school districts, institutions of higher education, and intermediate units with the goals of increasing K-12 students' knowledge of mathematics and science, improving the quality of the K-16 educator workforce, and creating sustainable partnerships among participants. ... |
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| Evaluating The Impact Of Building Information Modeling (BIM) On Construction |
Jan-2009 |
224 pages |
| Authors:
Patrick C Suermann; FLORIDA UNIV GAINESVILLE GRADUATE SCHOOL
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| This research assessed the impact of Building Information Modeling (BIM) implementation on construction projects according to six primary key performance indicators (KPIs) commonly used in the construction industry as accepted metrics for assessing project performance. These include: quality control (rework), on-time completion, cost, safety (lost man-hours), dollars/unit (square feet) performed, and units (square feet) per man hour. In the first research phase, data was collected through a survey instrument intended ... |
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| Summary Diagrams for Coupled Hydrodynamic-Ecosystem Model Skill Assessment |
Jan-2009 |
22 pages |
| Authors:
Bradley Penta; Robert Helber; Jason K Jolliff; Igor G Shulman; John C Kindle; Robert A Arnone; Marjorie A M Friedrichs; NAVAL RESEARCH LAB STENNIS SPACE CENTER MS OCEANOGRAPHY DIV
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| The increasing complexity of coupled hydrodynamic-ecosystem models may require skill assessment methods that both quantify various aspects of model performance and visually summarize these aspects within compact diagrams. Hence summary diagrams, such as the Taylor diagram (Taylor, 2001. Journal of Geophysical Research. 106. D7. 7183-7192). may meet this requirement by exploiting mathematical relationships between widely known statistical quantities in order to succinctly display a suite of model skill metrics in ... |
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| Viewing Radiation Signatures of Solar Energetic Particles in Interplanetary Space |
Jan-2009 |
8 pages |
| Authors:
S W Kahler; B R Ragot; AIR FORCE RESEARCH LAB HANSCOM AFB MA SPACE VEHICLES DIRECTORATE
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| A current serious limitation on the studies of solar energetic particle (SEP) events is that their properties in the inner heliosphere are studied only through in situ spacecraft observations. Our understanding of spatial distributions and temporal variations of SEP events has come through statistical studies of many such events over several solar cycles. In contrast, flare SEPs in the solar corona can be imaged through their radiative and collisional interactions ... |
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| Military Reenlistment and Deployment During the War on Terrorism |
Jan-2009 |
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| Authors:
Kate Giglio; RAND NATIONAL DEFENSE RESEARCH INST SANTA MONICA CA
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| In response to concerns about the ability of the military services to sustain required force levels, a RAND study examined deployment trends and developed a theoretical model to assess the effects of personal and work stress, bonus pay, and cumulative number of months of deployment on intention to reenlist and actual reenlistment rates. A review of recent literature and an analysis of survey and administrative data show that the amount ... |
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| Geometric, Statistical, and Topological Modeling of Intrinsic Data Manifolds: Application to 3D Shapes |
Jan-2009 |
137 pages |
| Authors:
Djamila Aouada; NORTH CAROLINA STATE UNIV AT RALEIGH DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
|
| The increasing size and complexity of data often invokes the extraction of information from their reduced representations while preserving their inherent structure. In this thesis, we explore the statistical, geometric and topological intrinsic information contained in high dimensional data. We focus on applications related to 3-dimensional objects, and model their 2-dimensional surfaces using compact curved-skeletal models that we refer to as 'squigraphs'. These models are multi-level representations that superpose global ... |
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| Sensitivity Analysis of QSAR Models for Assessing Novel Military Compounds |
Jan-2009 |
43 pages |
| Authors:
Igor Linkov; Jay L Clausen; Erin Bennett; ENGINEER RESEARCH AND DEVELOPMENT CENTER HANOVER NH COLD REGIONS RESEARCH AND ENGINEERING LAB
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| Reliable estimates of physical and biochemical properties of novel energetic compounds are essential before making the investment to synthesize, scale-up, and manufacture a new material for use in either military or civilian applications. Quantitative Structure-Activity Relationship (QSAR) software tools are available for predicting the physicochemical properties and environmental impacts of these emerging materials. The uncertainty and variability in melting point, solubility, half-lives, and related properties as a means of determining ... |
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| GPS Changes Before and After Implementation of the Architecture Evolution Plan |
01-Dec-2008 |
21 pages |
| Authors:
M A Weiss; A Masarie; NATIONAL INST OF STANDARDS AND TECHNOLOGY BOULDER CO TIME AND FREQUENCY DIV
|
| We characterize the performance of GPS signals before, and after Architecture Evolution Plan (AEP) implementation. We use the period from 20 May through 13 September 2007, MJDs 54240-54356, as the period before AEP. We use the interval from 14 September 2007 through 31 December 2007, MJDs 54357- 5446 as the period after the implementation of AEP. We use a variance analysis to characterize performance, allowing us to characterize periodic behavior ... |
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| Tactical Decision Making under Categorical Uncertainty with Applications to Modeling and Simulation |
Dec-2008 |
122 pages |
| Authors:
Kacey E Kemmerer; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| The Network Centric Warfare approach to command and control emphasizes decentralized decision making. Consequently, decision makers must comprehend and evaluate information to determine the optimal course of action. This study examines how different categories of uncertainty (ambiguous/missing, conflicting, baseline) and individual differences affect response time in decision-making tasks. The researchers elicited real-world tactical scenarios from veterans of Operation Enduring Freedom and Operation Iraqi Freedom in which uncertainty was present. Nine ... |
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| Pulse Mode Light Sensing Using Four-Layer Semiconductor Structures and Their Application in Neural Networks |
Dec-2008 |
91 pages |
| Authors:
Ioannis Siganos; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| Existing semiconductor photodetectors produce a steady current or voltage output in response to incident light that depends on the intensity of the light beam. In contrast, biological vision systems produce a stream of pulses with pulse rate representing the amount of incident light power. The goal of this thesis is to explore the use of a four-layer PNPN semiconductor structure as an optical detector that produces pulses instead of steady ... |
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| Measurement of Software Project Management Effectiveness |
Dec-2008 |
428 pages |
| Authors:
Kadir A Demir; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| Evaluating, monitoring and improving the effectiveness of project management can contribute to successful acquisition of software systems. In this dissertation, we introduce a quantitative metric for gauging the effectiveness of managing a software- development project. The metric may be used to evaluate and monitor project management effectiveness in software projects by project managers, technical managers, executive managers, project team leaders and various experts in the project organization. It also has ... |
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| Comparison of NDTI Methodologies to Classify Infrastructure in an Urban Battlespace From Thermal IR Signatures |
Dec-2008 |
9 pages |
| Authors:
Robert Lozar; Michael McInerney; Jonathan Trovillion; ENGINEER RESEARCH AND DEVELOPMENT CENTER CHAMPAIGN IL CONSTRUCTION ENGINEERING RESEARCH LAB
|
| A major challenge of remote infrastructure classification is to distinguish pavements from roofs. We proposed that, due to their differing thermal masses, these elements will heat and cool differently. Therefore, their thermal infrared (IR) signatures will differ throughout a 24-hour cycle. We propose a method to rapidly identify urban infrastructure that will assist the Future Force in dominating the urban battlespace to the same degree that the current force dominates ... |
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| Measurement of Trace Explosive Residues in a Surrogate Operational Environment: Implications for Tactical Use of Chemical Sensing in C-IED Operations |
Dec-2008 |
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| Authors:
Dennis Hardy; Fountain; Augustus W III; Roderick R Kunz; Kerin Clow; Stanley A Ostazeski; Jonathan Oyler; MASSACHUSETTS INST OF TECH LEXINGTON LINCOLN LAB
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| A campaign to measure the amount of trace explosive residues in an operational military environment was conducted on May 27-31, 2007, at the National Training Center at Fort Irwin, CA. The objectives to this campaign were to develop the methods needed to collect and analyze samples from tactical military settings, to use the data obtained to determine what the trace-explosive signatures suggest about the potential capabilities of chemical-based means to ... |
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| Performance Evaluation of Solar Blind NLOS Ultraviolet Communication Systems |
Dec-2008 |
8 pages |
| Authors:
Zhengyuan Xu; Brian M Sadler; CALIFORNIA UNIV RIVERSIDE DEPT OF ELECTRICAL ENGINEERING
|
| Ultraviolet (UV) systems provide unique opportunities for communications and sensing. We present recent results in UV communications, including experiments and analysis. We describe our experimental ultraviolet communication test-bed based on light emitting diodes with divergent beams, a solar blind filter, and a wide field-of-view detector. Then we report on statistical models for noise and signal photon counts, non-line of sight (NLOS) short-range ultraviolet communication link losses, and performance of photon ... |
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| Simulation and Design of Nanocomposite for Application in Ballistic Protection |
Dec-2008 |
10 pages |
| Authors:
Zheng-Dong Ma; Dongying Jiang; Yuanyuan Liu; Basavaraju Raju; Yushun Cui; ARMY TANK-AUTOMOTIVE AND ARMAMENTS COMMAND WARREN MI
|
| The objective of this research is to develop a modeling, simulation, and design tool for nanocomposites in order to predict, with accepted fidelity, nano-composite behaviors; and to design optimum nanocomposites for specific Army applications such as ballistic protection. Based on a unit cell model created for nanoclay-epoxy composites, the effect of nanoparticle distribution on the maximum stress developed in epoxy resin was investigated using the Meshfree Particle Method based simulation ... |
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| An Assessment of the Effectiveness of Computer-based Training for Newly Commissioned Surface Warfare Division Officers |
23-Oct-2008 |
120 pages |
| Authors:
Carol Stoker; Stephen Mehay; William R Bowman; Alice M Crawford; Robert Paynter; NAVAL POSTGRADUATE SCHOOL MONTEREY CA GRADUATE SCHOOL OF BUSINESS AND PUBLIC POLICY
|
| The goal of this study was to analyze the effectiveness of the new SWOS-at-Sea training for newly commissioned surface warfare officers that was introduced in 2003. The new regime combined self-paced computer-based training (CBT) with on-the-job training (OJT) on-board an officer's ship. The study relied on a variety of analytical techniques, including a literature review of CBT and OJT training, interviews and focus groups with junior and senior surface warfare ... |
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| Synthesizing Disparate Experiences in Episodic Planning |
Oct-2008 |
21 pages |
| Authors:
James H Lawton; Anthony J Ford; AIR FORCE RESEARCH LAB ROME NY INFORMATION DIRECTORATE
|
| Many decisions are actually made by synthesizing previous experience. Often, this involves many different experiences coming together to form a feasible solution. This paper presents a statistical model for predicting the outcome of solutions based on multiple experiences. In edge organizations, such as emergency first responders, it often requires the expertise of more than one person to form an approach to a complex problem. Unfortunately, each planner only has access ... |
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| Statistical Modeling of Radiometric Error Propagation in Support of Hyperspectral Imaging Inversion and Optimized Ground Sensor Network Design |
04-Sep-2008 |
326 pages |
| Authors:
Scott Klempner; ROCHESTER INST OF TECH NY
|
| A method is presented that attempts to isolate the relative magnitudes of various error sources present in common algorithms for inverting the effects of atmospheric scattering and absorption on solar irradiance and determine in what ways, if any, operational ground truth measurement systems can be employed to reduce the overall error in retrieved reflectance factor. Error modeling and propagation methodology is developed for each link in the imaging chain, and ... |
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| Molecular and Clinical Predictors of Aggressive Prostate Cancer |
01-Sep-2008 |
28 pages |
| Authors:
Lorelei A Mucci; BRIGHAM AND WOMEN'S HOSPITAL BOSTON MA
|
| While prostate cancer is an important cause of cancer mortality, most men diagnosed with early prostate cancer experience an indolent course. We evaluated molecular and clinical predictors to distinguish lethal and indolent prostate cancer. In a related project, we tested the predictive value of a previously identified multigene tumor signature, a 12-gene model. Risk classification based on the 12-gene model predicted development of lethal disease 20 years hence. The best ... |
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| Detection and Tracking Based on a Dynamical Hierarchical Occupancy Map in Agent-Based Simulations |
01-Sep-2008 |
83 pages |
| Authors:
Dietmer J Teufel; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| Agent-Based Models in military simulation need a model for detection and tracking other agents. It has been suggested that statistical models, such as occupancy maps or particle filters, can be used for that purpose. An occupancy map is one possibility for this task. The more volume of space, however, in a simulation, the more the computational demand of using occupancy maps grow and the more benefit could be obtained by ... |
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| Echolocation-Based Foraging by Harbor Porpoises and Sperm Whales, Including Effects on Noise and Acoustic Propagation |
Sep-2008 |
|
| Authors:
Stacy L DeRuiter; MASSACHUSETTS INST OF TECH CAMBRIDGE
|
| This thesis provides quantitative descriptions of toothed whale echolocation and foraging behavior, including assessment of the effects of noise on foraging behavior and the potential influence of ocean acoustic propagation conditions on biosonar detection ranges and whale noise exposure. Chapter 2 details the application of a modified version of the Dtag to study harbor porpoise echolocation. Study results indicate how porpoises vary the rate and level of their echolocation clicks ... |
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| The Effect of Registration Error on Tracking Distant Augmented Objects |
Sep-2008 |
11 pages |
| Authors:
Mark A Livingston; Zhuming Ai; NAVAL RESEARCH LAB WASHINGTON DC
|
| We conducted a user study of the effect of registration error on performance of tracking distant objects in augmented reality. Categorizing error by types that are often used as specifications, we hoped to derive some insight into the ability of users to tolerate noise, latency, and orientation error. We used measurements from actual systems to derive the parameter settings. We expected all three errors to influence users ability to perform ... |
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| Potential Distribution of Two Species in the Medically Important Anopheles minimus Complex (Diptera: Culicidae) |
Sep-2008 |
10 pages |
| Authors:
RichArd C Wilkerson; Leopoldo M Rueda; Desmond H Foley; A Townsend Peterson; WALTER REED ARMY INST OF RESEARCH SILVER SPRING MD DEPT OF ENTOMOLOGY
|
| Anopheles minimus Theobald (An. minimus A) and possibly Anopheles harrisoni Harbach & Manguin (=An. minimus C) are important malaria vector species in the Minimus Complex in Southeast Asia. The distributions of these species are poorly known, although detailed information could benefit malaria vector incrimination and control. We used published collection records of these species and environmental geospatial data to construct consensus ecological niche models (ENM) of each species' potential geographic ... |
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| Demonstration of Helicopter Multi-Towed Array Detection System (MTADS) Magnetometry Technology at Pueblo Precision Bombing Range #2, Colorado |
28-Aug-2008 |
59 pages |
| Authors:
David Wright; Jack Foley; SKY RESEARCH ASHLAND OR
|
| The Pueblo Precision Bombing Range is located in Otero County, Colorado. This site is classified by the United States Government as a Formerly Used Defense Site (FUDS) and was a World War II-era military training facility. This demonstration utilized Helicopter Multi-Sensor Towed Array Detection System (MTADS) Magnetometry (HeliMag) technology, a wide area assessment technology. A data collection survey was conducted in September of 2005 and resulted in the survey of ... |
|
| ORA User's Guide 2008 |
01-Jul-2008 |
589 pages |
| Authors:
Jeff Reminga; Il-Chul Moon; Matt DeReno; Kathleen M Carley; Dave Columbus; CARNEGIE-MELLON UNIV PITTSBURGH PA SCHOOL OF COMPUTER SCIENCE
|
| ORA is a network analysis tool that detects risks or vulnerabilities of an organization's design structure. The design structure of an organization is the relationship among its personnel, knowledge, resources, and tasks entities. These entities and relationships are represented by the Meta-Matrix. Measures that take as input a Meta-Matrix are used to analyze the structural properties of an organization for potential risk. ORA contains over 100 measures which are categorized ... |
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| Vapor-Phase Infrared Absorptivity Coefficient of Cyclohexyl Isothiocyanate |
01-Jul-2008 |
21 pages |
| Authors:
Miles; Alan C Samuels; Ronald W Jr; Barry R Williams; Melissa S Hulet; EDGEWOOD CHEMICAL BIOLOGICAL CENTER ABERDEEN PROVING GROUND MD
|
| We measured the vapor-phase absorptivity coefficient of cyclohexyl isothiocyanate in the mid-infrared (4000-550 cm(-1)) at a spectral resolution of 0.125 cm(-1). The chemical used in the feedstock was subjected to a rigorous analysis by gas chromatography-mass spectrometry, nuclear magnetic resonance, and Karl-Fischer titration to verify its purity. We describe the experimental method used to acquire the individual spectra that were used to produce the composite spectrum and summarize the statistical ... |
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| High Order Accuracy Methods for Supersonic Reactive Flows |
25-Jun-2008 |
|
| Authors:
David Gottlieb; Wai-Sun Don; BROWN UNIV PROVIDENCE RI DIV OF APPLIED MATHEMATICS
|
| A multi-domain spectral method with stable and conservative penalty interface conditions for the numerical simulation of supersonic reactive recessed cavity flows with inhomogeneous grid is developed. The high order hybrid Spectral-WENO finite difference method under multi-domain framework is also introduced for the numerical solution of two dimensional nonlinear hyperbolic conservation laws in a Cartesian physical domain. A different approach in attempting to get more meaningful resultss is to model statistically ... |
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| An Operational Statistical Analysis of United States Marine Corps Civilian Employee Injury Tracking Process and Injury Data |
01-Jun-2008 |
101 pages |
| Authors:
Carlos G Rascon; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| Organizations within the Department of Defense (DoD) and Department of Labor (DoL) report safety metrics that quantify DoD civilian employee injury incident rates and lost work time for all military services. Based on these metrics, the United States Marine Corps (USMC) is experiencing high injury rates and lost work time in relation to adjacent services. This thesis recommends process improvements for tracking injuries and handling data, as well as a ... |
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| Defense Industry Consolidation and Weapon Systems Cost Growth |
01-Jun-2008 |
117 pages |
| Authors:
Ioannis A Stratogiannis; Christos K Zahos; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
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| This thesis is a survey of the cost growth of weapon systems acquisition by the U.S. Department of Defense (DoD). It attempts to assess whether the extensive consolidation of the defense industry has led to any significant reduction of cost growth. The primary data sources for the cost of weapon systems are the Selected Acquisition Reports (SAR), which are published by DoD for the major acquisition programs. After an introductory ... |
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| Improving Government's Retirement Plan Investments by Using Mining Tools for Discovery of Price Patterns and Combining Methods of Fundamental and Technical Analysis |
01-Jun-2008 |
121 pages |
| Authors:
Nikitas Goumatianos; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
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| There are many tools available to government fund managers for making investment decisions, especially regarding the retirement options available to U.S. service members, including Social Security, Military Retirement, Traditional Individual Retirement Accounts (IRAs), Roth IRAs, and the Uniformed Services Thrift Savings Plan (TSP). This project concentrates on both long-term and short-term investments by exploiting the combination of two types of investment methods. The first is to predict the future directions ... |
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| Special Forces Officer Recruiting in a High OPTEMPO Environment |
01-Jun-2008 |
103 pages |
| Authors:
Michael B Weathers; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
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| This thesis investigates, analyzes, and determines how the current levels of operations tempo (OPTEMPO) and the Army's efforts to mitigate OPTEMPO's negative impacts are affecting the recruitment of U.S. Army officers for service in Special Forces (SF). In light of the dynamic nature of the Army's operational environment today, this thesis does not attempt to provide a conclusive list of all the things that have a positive or negative impact ... |
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