| Peace through Trade: An Analysis of the Effect of Domestic Trade on International Conflict and Civil War |
Jun-2009 |
113 pages |
| Authors:
Sollfrank; Horst D Jr; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
 | This thesis examines how different levels of domestic trade affect the intensity of conflict within and between states. Specifically, the thesis utilizes a cross-sectional analysis of pooled time-series data, both previously collected conflict data sets and published economic data, to test the hypothesis. The data are analyzed by conducting a correlation analysis followed by linear regression of the independent and dependent variables, controlling for certain variances between the cases by ... |
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| Analysis of Civil Reserve Airfleet Participation |
Jun-2009 |
49 pages |
| Authors:
Scott S Lew; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH GRADUATE SCHOOL OF ENGINEERING AND MANAGEMENT
|
| Organizational slack is the cushion of actual or potential resources that allows an organization to adapt to internal or external pressures. Slack resources can come in many forms, such as excess capacity and unused capital. Commercial airlines possess slack in the form of excess capacity, also known as load factor. Due to the increasing pressures to reduce costs and eliminate excess capacity, the commercial carriers constantly try to increase their ... |
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| An Analysis of the U.S. Pilot Population From 1983-2005: Evaluating the Effects of Regulatory Change |
May-2009 |
25 pages |
| Authors:
Paul B Rogers; Stephen J Veronneau; Connie L Peterman; James E Whinnery; Estrella M Forster; FEDERAL AVIATION ADMINISTRATION OKLAHOMA CITY OK CIVIL AEROMEDICAL INST
|
| The size of the U.S. civil aviator community has been of interest to researchers, policy makers, and special interest groups. A strict definition for membership in the U.S. pilot population was used that was based on Scientific Information System principles. This approach provides methods for scientists to describe, quantify, and predict changes in this population over the 23-year study period. The Bioinformatics Research Team at the Civil Aerospace Medical Institute ... |
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| An Activity-Based Non-Linear Regression Model of Sopite Syndrome and its Effects on Crew Performance in High-Speed Vessel Operations |
Mar-2009 |
101 pages |
| Authors:
Jeremy M Johnston; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| The Navy's future use of shallow-draft high-speed vessels has provoked questions regarding the effects of resulting ship motion on crews' performance. Sopite syndrome, a commonly overlooked subset of motion sickness, is responsible for lethargy, fatigue, drowsiness, difficulty concentrating and numerous other performance-diminishing symptoms in shipboard crewmembers who appear to be adapted to vessel motion (Graybiel & Knepton, 1976). Since its discovery in 1976, no physically measurable parameter to quantify Sopite ... |
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| Application of Reliability and Linear Regression to Enterprise Architecture in Support of the US Air Force's Capability Review and Risk Assessment |
Mar-2009 |
126 pages |
| Authors:
Peter C Mastro; Richard L Orcutt; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH GRADUATE SCHOOL OF ENGINEERING AND MANAGEMENT
|
| This research explored the use of modeling and enterprise architecture in the analysis of Air Force Capabilities. The Air Force accomplishes this through the Capability Review and Risk Assessment (CRRA). The CRRA is currently performed by building architectures which contain Process Sequence Models (PSMs). PSMs are scored by Subject Matter Experts to determine the probability of successfully completing the mission they model and ultimately to determine the risk associated to ... |
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| Civil Engineer Corps Accessions: Forecasting Interview Requirements and Travel Budgets |
Dec-2008 |
47 pages |
| Authors:
Max Sisson; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| The purpose of this MBA Project is to provide insight into interview requirements and travel budgets for the Civil Engineer Corps accessions team through the use of forecasting. The goal of this project is to provide a forecasting model that can predict interview requirements and form the basis for constructing travel budgets and estimates. The primary tool utilized is spreadsheet modeling to include extensive linear regression analysis. Additional insight is ... |
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| Combat Related Environmental Risk Factors as Predictors of Self-Rated Health |
30-Jun-2008 |
45 pages |
| Authors:
Donald W Sexton; MADIGAN ARMY MEDICAL CENTER TACOMA WA
|
| The purpose of this study is to examine the correlates of combat related environmental factors with the self-rated health of U.S. Army Soldiers returning from a combat deployment. The data used for this study are collected through the Soldier Wellness Assessment Program (SWAP) using the Health Risk Assessment Survey II (HRA IIv2). This survey is designed to identify physical and mental health concerns of Soldiers 90-180 days after their return ... |
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| Developing a Predictive for Unscheduled Maintenance Requirements on United States Air Force Installations |
01-Jun-2008 |
71 pages |
| Authors:
Matthew D Kovich; J D Norton; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT
|
| The United States Air Force Civil Engineer community continually strives for more descriptive methods to explain the impact of funding decisions on future infrastructure conditions. This paper develops one such method by using linear regression and time series analysis to develop a predictive model to forecast future year man-hour and funding requirements for unscheduled maintenance. The results provide predictive models for up to a 5 year forecast with improved results ... |
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| Wavelet-Based Signal Processing for Monitoring Discomfort and Fatigue |
Jun-2008 |
106 pages |
| Authors:
Cristhian Von Potes; Ricardo Borries; Cristiano J Miosso; TEXAS UNIV AT EL PASO
|
| Muscle fatigue involves both a decrease in the frequency and increase in the amplitude of a surface electromyographic (SEMG) signal. Muscle fatigue is also related to a decrease of the force impeding to reach the same initial level of the maximum voluntary contraction (MVC). To determine indices of muscle fatigue, a method is proposed to estimate both the instantaneous frequency (IF) and the instantaneous amplitude (IA) by decomposing the SEMG ... |
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| Objectively Assessing Underwater Image Quality for the Purpose of Automated Restoration |
OCT 2007 |
8 pages |
| Authors:
Weilin Hou; Alan D. Wiedemann; NAVAL RESEARCH LAB STENNIS SPACE CENTER MS OCEANOGRAPHY DIV
|
| To automatically enhance and restore images, especially those taken from underwater environments where scattering and absorption by the medium strongly influence the imaging results even within short distances, it is critical to have access to an objective measure of the quality of images obtained. This contribution presents an approach to measure the sharpness of an image based on the weighted gray-scale-angle (GSA) of detected edges. Images are first decomposed by ... |
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| Relationships Between Global Warming and Tropical Cyclone Activity in the Western North Pacific |
SEP 2007 |
163 pages |
| Authors:
David W. Meyer; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| In this work, we investigate the relationships between global warming and tropical cyclone activity in the Western North Pacific (WNP). Our hypothesis is that global warming impacts on TC activity occur through changes in the large scale environmental factors (LSEFs) known to be important in determining the formation and intensity of TCs. The LSEFs on which we focus are: Sea surface temperature (SST) exceeding 26C Weak vertical shear in horizontal ... |
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| Resampling Statistics Tutorial |
01-Jun-2007 |
46 pages |
| Authors:
Greg Hutto; WING ( 53RD) EGLIN AFB FL
|
| Tutorial Overview: *A couple of motivational problems; *Why we care and Resampling history; *Resampling vs. Classical Approach to Statistical Testing; *Potential Advantages of Adopting Resampling; *Caveats and Directions for the Future |
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| Public Resolve: The Casualty of the Long War |
01-Jun-2007 |
27 pages |
| Authors:
Michael J Artelli; Richard F Deckro; Marcus B Perry; Daniel J Zalewski; Sonia Leach; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING
|
| This briefing looks at Fourth Generation Operations which it defines as "Combat which combines elements of guerrilla tactics, terrorism, irregular warfare, insurgency and traditional warfare to target the will and morale of the enemy's support structure to achieve political victory" and public support over time. |
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| Sample Size Determination for Estimation of Sensor Detection Probabilities Based on a Test Variable |
JUN 2007 |
121 pages |
| Authors:
Okan Oymak; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| In this thesis, we study procedures and required sample sizes for estimating the probability of detection as a function of range to target for sensor systems as evaluated by the U.S. Army Yuma Proving Ground. First, we examine the problem within the context of a binomial experiment in order to improve the current estimation method used by the U.S. Army Yuma Proving Ground. Specifically, we evaluate the coverage probabilities and ... |
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| Study of Equatorial Ionospheric Irregularities with ROCSAT-1/IPEI Data for Assessment of Impacts of Communication/Navigation System (IV) |
31 MAY 2007 |
22 pages |
| Authors:
Chao H. Liu; Shin-Yi Su; NATIONAL CENTRAL UNIV CHUNG-LI (TAIWAN)
|
| Monthly variation of global equatorial density irregularity distribution has been obtained with data taken by ROCSAT-1 at the 600 km topside ionosphere from March 1999 to June 2004 during high to moderate solar activity periods. This complete global longitudinal distribution of monthly equatorial density irregularity occurrence variation provides not only the best spatial/temporal distribution existed so far but also fills the large gap of irregularity distribution missing over some Pacific ... |
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| Nurse Staffing at Methodist Heathcare Ministries: Factors Influencing Recruiting and Retention |
APR 2007 |
62 pages |
| Authors:
Leah Mooney; BAYLOR UNIV HOUSTON TX
|
| The purpose of this study was to recognize the salient factors nurses consider ill their employment decision-making process. The nurse assessment questionnaire represented a cross-sectional analysis. It was distributed electronically during January of 2007 to two populations, all nursing staff at MHM and nursing students at UTMSCSA. The research questions stated: What factors influence the recruiting and retention of a qualified nursing staff at Methodist Healthcare Ministries? Is there a ... |
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| Effects of Using NATEC Services within E-2C and FA-18 Operational Squadrons |
MAR 2007 |
149 pages |
| Authors:
Allen E. Sanford; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| The thesis identifies Navy E-2C and FA-18 squadron metrics that are affected by Technical Representative (Tech Rep) Usage from Naval Air Technical and Engineering Service Command (NATEC). Six different databases are identified that contain the following types of metrics: Readiness, Standards and Policy (RS&P), Maintenance and Supply Chain Management (M&SCM); Fleet Readiness Training Plan (FRTP); Financial; Manpower; and Tech Rep Usage. From the databases, twenty-four months of data is collected ... |
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| Entropy Based Classifier Combination for Sentence Segmentation |
2007 |
5 pages |
| Authors:
M. Magimai-Doss; D. Hakkani-Tur; O. Cetin; E. Shriberg; J. Fung; N. Mirghafori; INTERNATIONAL COMPUTER SCIENCE INST BERKELEY CA
|
| We describe recent extensions to our previous work, where we explored the use of individual classifiers, namely, boosting and maximum entropy models for sentence segmentation. In this paper we extend the set of classification methods with support vector machine (SVM). We propose a new dynamic entropy-based classifier combination approach to combine these classifiers, and compare it with the traditional classifier combination techniques, namely, voting, linear regression and logistic regression. Furthermore, ... |
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| On-Orbit Identification of Inertia Properties of Spacecraft using Robotics Technology |
DEC 2006 |
52 pages |
| Authors:
Ou Ma; NEW MEXICO STATE UNIV REGENTS LAS CRUCES
|
| This technical report describes the results of a 6-month research project conducted by Dr. Ou Ma and one of his graduate students at the New Mexico State University under the AFOSR grant number FA9550-06-1-0284 starting in May 2006. In the project, a methodology of on-orbit identification of spacecraft inertia properties (i.e., the mass, the location of the mass center, and the inertia tensor) using a robotic arm was investigated. The ... |
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| Economic Limits to Corporate Growth in America |
DEC 2006 |
89 pages |
| Authors:
Robert A. Dam; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| This work explores the relationship between corporate and economic growth within the United States since 1929. The corporate share of Gross Domestic Product (GDP) climbed from 52.5 percent in 1929 to 59.7 percent in 2005. Depending upon the years included and the method of estimating respective growth rates, this increasing share of GDP accounts for up to 14 percent of real domestic corporate growth. However, the domestic corporate share of ... |
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| Comparing The Effectiveness of a90/95 Calculations (Preprint) |
SEP 2006 |
10 pages |
| Authors:
Charles Annis; Jeremy Knopp; STATISTICAL ENGINEERING PALM BEACH GARDENS FL
|
| Most practitioners see a90/95 as a static, single-point summary of an entire inspection's capability. It purports to be the size of the target having at least 90% probability of detection in 95 of 100 probability of detection (POD) experiments under nominally identical conditions. But in some situations the actual coverage is closer to 80%, rather than 95%, with 50% coverage being the median POD(a) curve itself. This paper discusses the ... |
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| A Validity Review of the Color Company Competition at the United States Naval Academy |
JUN 2006 |
99 pages |
| Authors:
Derek S. Dryden; NAVAL POSTGRADUATE SCHOOL MONTEREY CA GRADUATE SCHOOL OF BUSINESS AND PUBLIC POLICY
|
| As the primary source of officers for the Navy and Marine Corps team, the Naval Academy's reputation is marked by the quality of its graduates. At the United States Naval Academy, the Color Company Competition annually honors the highest performing company within the Brigade of Midshipmen. This competition includes measures of academic, athletic and professional measures of performance. Using data obtained through the Institutional Research Department, the Physical Education Department, ... |
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| Affects of Provider Type on Patient Satisfaction, Productivity and Cost Efficiency |
25 APR 2006 |
66 pages |
| Authors:
Timothy Foster; TRICARE SOUTHWEST SAN ANTONIO TX DOD HEALTH SERVICE REGION 6
|
| The purpose of this one year retrospective quantitative study is to determine if the type of provider (physician, nurse practitioner, and physician assistant) influences patient satisfaction and productivity. 104,013 Army beneficiaries who visited their Primary Care Managers (PCM) from January 2004 to December 2004, were surveyed and their results were used as the sample for this study. Provider productivity and cost efficiency within CONUS Military Treatment Facilities (MTFs) was evaluated ... |
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| Patient Satisfaction in Military Dental Treatment Facilities |
07 MAR 2006 |
110 pages |
| Authors:
Jeffrey G. Chaffin; ARMY DENTAL COMMAND FORT SAM HOUSTON TX
|
| This study aimed to identify predictors of satisfaction with the dentist and hygienist in military dental clinics. Respondents completed 658,443 surveys using a standardized DoD questionnaire. Factor analysis was utilized to assess the underlying constructs ofsatisfaction and hierarchical multiple linear regression to assess the%redictive effects of the dependent variables on the three independent variables: 1) overall satisfaction with today's visit, 2) overall clinic satisfaction, 3) behavioral intent of the likelihood ... |
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| Accuracy of Tropical Cyclone Induced Winds Using TYDET at Kadena AB |
MAR 2006 |
110 pages |
| Authors:
Joel W. Fenlason; NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF METEOROLOGY
|
| When a tropical cyclone (TC) is within 360 nautical miles of Kadena AB, the Air Force's Typhoon Determination (TYDET) program is used to estimate TC-induced winds expected at the base. Best-track data and Joint Typhoon Warning Center (JTWC) forecasts are used to evaluate systematic errors in TYDET. The largest contributors to errors in TYDET are a systematic error by which wind speeds are too large and the lack of size ... |
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| Estimating Required Contingency Funds for Construction Projects using Multiple Linear Regression |
MAR 2006 |
65 pages |
| Authors:
Jason J. Cook; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT
|
| Cost overruns are a critical problem for construction projects. The common practice for dealing with cost overruns is the assignment of an arbitrary flat percentage of the construction budget as a contingency fund. This research seeks to identify significant factors that may influence, or serve as indicators of, potential cost overruns. The study uses data on 243 construction projects over a full range of project types and scopes gathered from ... |
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| ELeaRNT: Evolutionary Learning of Rich Neural Network Topologies |
2006 |
|
| Authors:
Matteo Matteucci; CARNEGIE-MELLON UNIV PITTSBURGH PA DEPT OF COMPUTER SCIENCE
|
 | In this paper we present ELeaRNT an evolutionary strategy which evolves rich neural network topologies in order to find an optimal domain specific non linear function approximator with a good generalization performance. The neural networks evolved by the algorithm have a feed forward topology with shortcut connections and arbitrary activation functions at each layer. This kind of topologies has not been thoroughly investigated in literature, but is particularly well suited ... |
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| The Characterization of Spinal Compression in Various-Sized Human and Manikin Subjects During +Gz Impact |
OCT 2005 |
8 pages |
| Authors:
Erin Caldwell; John Plaga; AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH HUMAN EFFECTIVENESS DIRECTORATE
|
| Background: During +Gz impacts such as those encountered during ejection, the human torso and spine compress or slump due to the inertial forces acting on the body. Spinal compression can be characterized by a second-order differential equation involving coefficients such as damping ratio, natural frequency and spring constant. Objective: To characterize spinal compression resulting from +Gz impacts and determine how well test manikins replicate responses of similar size humans. Methods: ... |
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| A Comparison of Comorbidity Measurements to Control for Confounding in Health Outcomes Studies |
28 SEP 2005 |
27 pages |
| Authors:
Joel F. Farley; Carolyn R. Harley; Joshua W. Devine; MINNESOTA UNIV MINNEAPOLIS
|
| ARTICLE SUMMARY: This study compares the performance of several co-morbidity indices and simple count measurements in the prediction of future health expenditures. OBJECTIVES: This study compares the performance of the Elixhauser and Charlson Indices with the Rx-Risk-V score and several simple count measurements including counts of prescriptions, physician's visits, hospital claims, unique prescription classes, and Diagnosis Clusters. STUDY DESIGN: Simple count measurements, the Elixhauser and Charlson Indices, and the Rx-Risk-V ... |
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| Analysis of Recruit Attrition from the U.S. Marine Corps Delayed Entry Program |
SEP 2005 |
154 pages |
| Authors:
Michael G. Bruno; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| The Marine Corps expends much effort and money annually in recruiting qualified applicants to fill its ranks. Yet, an average of one out of every five new recruits leaves the Delayed Entry Program (DEP) even before attending boot camp. This thesis uses binary probit models to analyze four years of enlistment data obtained through the Total Force Data Warehouse (TFDW) from five of the six Marine Corps Districts (MCDs). The ... |
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| System Dynamics Aviation Readiness Modeling Demonstration |
31 AUG 2005 |
64 pages |
| Authors:
Michael E. McDevitt; CONSOLIDATED ANALYSIS CENTER INC DYNAMIC SYSTEMS (CACI) SAN DIEGO CA
|
| A proof-of-concept demonstration of System Dynamics modeling was developed to determine the relative merit of the approach and then an experiment compared the results of the System Dynamics model with a traditional linear regression readiness model. This report documents the proof of concept model development and the experiment's results. An aviation readiness production model was formulated using system dynamics. The model was developed over a period of six months with ... |
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| A Paraphrase-Based Approach to Machine Translation Evaluation |
AUG 2005 |
12 pages |
| Authors:
Grazia Russo-Lassner; Jimmy Lin; Philip Resnik; MARYLAND UNIV COLLEGE PARK INST FOR ADVANCED COMPUTER STUDIES
|
| We propose a novel approach to automatic machine translation evaluation based on paraphrase identification. The quality of machine-generated output can be viewed as the extent to which the conveyed meaning matches the semantics of reference translations, independent of lexical and syntactic divergences. This idea is implemented ill linear regression models that attempt to capture human judgments of adequacy and fluency, based on features that have previously been shown to be ... |
|
| Affinity-Selected Filamentous Bacteriophage as a Probe for Acoustic Wave Biodetectors of Salmonella typhimurium |
24 MAY 2005 |
37 pages |
| Authors:
Eric V. Olsen; Iryna B. Sorokulova; Valery A. Petrenko; I-Hsuan Chen; James M. Barbaree; Vitaly J. Vodyanoy; AUBURN UNIV AL
|
| Proof-in-concept biosensors were prepared for the rapid detection of Salmonella typhimurium in solution, based on affinity-selected filamentous phage prepared as probes physically adsorbed to piezoelectric transducers. Quantitative deposition studies indicated that ^3 x 10 to the 10th power phage particles per square cm could be irreversibly adsorbed for 1 h at room temperature to prepare working biosensors. The quality of phage deposition was monitored by fluorescent microscopy. Specific bacterial binding ... |
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| Unwarranted Variation in the Medical Management of Injured Civilian Workers in the U.S. Army Medical Command |
APR 2005 |
52 pages |
| Authors:
William A. Rice; ARMY MEDICAL COMMAND FORT SAM HOUSTON TX
|
| Variation exists within the U.S. Army Medical Command in the structures and processes used to medically manage injured civilian workers. Likewise, there is great variation in the average total cost per case. In order to establish an evidence base for best practice in the medical management of injured civilian federal employees, structure and process variables were obtained from an annual status report submitted from each Army medical treatment facility (MTF). ... |
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| Life Modeling for Nickel-Hydrogen Batteries in Geosynchronous Satellite Operation |
25 MAR 2005 |
26 pages |
| Authors:
A. H. Zimmerman; V. J. Ang; AEROSPACE CORP EL SEGUNDO CA LAB OPERATIONS
|
| A model for predicting nickel-hydrogen battery lifetime in LEO applications has been extended to the conditions encountered in GEO orbiting satellites. The model has been found to accurately reproduce the lifetimes observed from available accelerated GEO tests, and is also consistent with the existing orbital performance data. The model has been used to predict how properly designed and operated nickel-hydrogen battery lifetimes should depend on the operating environments and charge ... |
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| An Analysis into the Effectiveness of Aircraft Maintenance Under the Combat Wing Structure |
MAR 2005 |
175 pages |
| Authors:
Derrick R. Barthol; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT
|
| Organizational structure builds the foundation from which organizations operate. To gain full potential of structural efficiencies in the current operating environment, public and private firms are continually modifying their organizational structure. The U.S. Air Force is no different and underwent its most recent reorganization in the fall of 2002 replacing the post- Gulf War format of the previous decade. Air Force leadership needs to understand how well the current structure ... |
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| An Extension of the Theory of Job Embeddedness: An Investigation of Effect on Intent to Turnover of United States Air Force Members |
MAR 2005 |
127 pages |
| Authors:
Charles E. Hassell; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT
|
| This study investigated the ability of Mitchell, Holtom, Lee, Sablynski, and Erze's (2001) job embeddedness construct to predict intent to turnover after considering the historical predictors of job satisfaction, organizational commitment, job search, and job alternatives. This study extended the research on job embeddedness by investigating the extent to which age, race, gender, and marital status would affect the relationship between job embeddedness and intent to turnover. Results indicated that ... |
|
| Severe Winter Weather in the Continental U.S. and Global Climate Cycles |
OCT 2004 |
88 pages |
| Authors:
Steven F. Daly; Julie E. Friddell; Kathleen F. Jones; Carrie M. Vuyovich; ENGINEER RESEARCH AND DEVELOPMENT CENTER HANOVER NH COLD REGIONS RESEARCH AND ENGINEERING LAB
|
| The relationship between severe winter weather in the United States and global climate indices is investigated using data from 1950 to 2002. Winter severity is characterized by accumulated freezing degree-days (AFDDO and damaging freezing rain storms. The first eigenvector of the AFDD anomaly, based on data from 2282 weather stations, shows a pattern in which the entire country tends to be either warmer or colder than average, while the second ... |
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| Use of Near-Infrared Spectroscopy in Early Determination of Irreversible Hemorrhagic Shock |
01 SEP 2004 |
15 pages |
| Authors:
Jodie H. Taylor; Kristine E. Mulier; Dean E. Myers; Greg J. Beilman; MINNESOTA UNIV MINNEAPOLIS DEPT OF SURGERY
|
| Progression to irreversible shock may not be clinically apparent until a patient has been given several liters of fluids as well as multiple units of blood and blood products. In combat situations or in situations in which fluids for resuscitation are limited, resources need to be appropriately allocated. Therefore, early differentiation between patients who will progress to irreversible shock and those who are resuscitatable is important. We investigated whether the ... |
|
| Analysis of the Vertical Takeoff and Landing Unmanned Aerial Vehicle (VTUAV) in Small Unit Urban Operations |
SEP 2004 |
92 pages |
| Authors:
Roman K. Cason; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| The Marine Corps has recently embarked on the development of a Vertical Takeoff and Landing Unmanned Aerial Vehicle (VTUAV) to replace the aging Pioneer Unmanned Aerial Vehicle (UAV) system. This thesis examines the critical elements this platform must possess to effectively support small units operating in urban environments. The author addresses this issue by creating and exploring an agent-based simulation of a platoon conducting an urban patrol in a setting ... |
|
| Uncertainty Estimation on GPS Time Transfer |
SEP 2004 |
19 pages |
| Authors:
M. Addouche; F. Meyer; F. Vernotte; OBSERVATOIRE DE BESANCON (FRANCE)
|
| The traditional GPS common view technique, using C/A code receivers, is the main time transfer method used by various timing laboratories over the world. Moreover, this method is used to realize the TAI (Temps Atomique International) and the TA (F) (Temps Atomique Francais). Clock offsets between laboratory clocks are determined according to a fixed procedure defined by the CCTF (Comit Consultatif du Temps et des Frequences). Using this procedure, one ... |
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| The Relationship Between Sleep Regimen and Performance in United States Navy Recruits |
SEP 2004 |
111 pages |
| Authors:
Charles H. Andrews; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| Fatigue due to sleep deprivation is a major factor in both mental and physical performance. Failure of Recruits to receive the proper quality and quantity of sleep can be detrimental to a Recruit's safety and can diminish the amount of information learned during training. During the 1980s, the sleep regimen was decreased to 6 hours of sleep per night. In 2002, a decision was made to give U.S. Navy Recruits ... |
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| Quantitative Mechanistic Modeling of Sublingual PC02 as an Index of Shock Severity and Resuscitation Success |
SEP 2004 |
19 pages |
| Authors:
Max H. Weil; INSTITUTE OF CRITICAL CARE MEDICINE PALM SPRINGS CA
|
| The goal of our study for the first year was to investigate whether the changes in sublingual PCO2 reflect changes in tissue blood flow during hemorrhage and hemorrhagic shock. Hemorrhagic shock was induced by a modification of Wigger's method in male domestic pigs weighting 35 to 40 kg. Sublingual PCO2 increased from 60 to 129 mmHg in parallel with average decreases in cardiac output to 44% and mean arterial pressure ... |
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| The Effects of Usual Intervention Versus Usual Intervention Plus Knowledge of Measured Resting Energy Expenditure on Body Weight and Body Fat in Active Duty Air Force Personnel |
28 JUL 2004 |
145 pages |
| Authors:
Heather A. Nelson; AIR FORCE INST OF TECH WRIGHT-PATTERSONAFB OH
|
| Objective: To investigate if knowledge of resting energy expenditure (REE) results will support reductions in body weight and body fat in active duty Air Force personnel. Design: A 90-day randomized controlled clinical trial. Subjects/Setting: 76 young adults with BMI: 25.2-36.2, enrolled in a Weight and Body Fat Management program Statistical Analysis: Descriptives, 2-sample t- tests, multiple linear regression, and ANOVA for mean differences between groups and time; regression diagnostics for ... |
|
| An Exploratory Analysis of Convoy Protection Using Agent-Based Simulation |
JUN 2004 |
120 pages |
| Authors:
Matthew B. Hakola; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| Recent insurgent tactics during Operation Iraqi Freedom (OIF) have demonstrated that coalition logistical convoys are vulnerable targets. This thesis examines the tactics, techniques and procedures (TTPs) used in convoy operations in an attempt to identify the critical factors that lead to mission success. A ground convoy operation scenario is created in the agent-based model (ABM) Map Aware Non-uniform Automata (MANA). The scenario models a generic logistical convoy consisting of security ... |
|
| Wave Impact Analysis and Results Obtained from a Segmented Model of the High-Speed Sealift Trimaran Model 5594 |
JUN 2004 |
55 pages |
| Authors:
Christina Simone; Thomas F. Brady; NAVAL SURFACE WARFARE CENTER CARDEROCK DIV BETHESDA MD SURVIVABILITY STRUCTURES AND MATERIALS DIRECTORATE
|
| Hydrodynamic loads testing was completed on a segmented, high-speed sealift (HSS) trimaran model, number 5594, having a scaled ratio 1:45. The model was comprised of six shell sections connected using a calibrated backspline with instrumentation to measure primary and secondary hull girder loading. This test was an evaluation by the Navy of a notional structural design for a lightweight high-speed hull form in support of the High Speed Sealift Program. ... |
|
| Calibrated Probabilistic Forecasting Using Ensemble Model Output Statistics and Minimum CRPS Estimation |
05 MAY 2004 |
36 pages |
| Authors:
Tilmann Gneiting; Anton H. Westveld; Adrian E. Raftery; Tom Goldman; WASHINGTON UNIV SEATTLE DEPT OF STATISTICS
|
| Ensemble prediction systems typically show positive spread-error correlation, but are subject to forecast bias and underdispersion. This work proposes the use of ensemble model output statistics (EMOS), an easy to implement post-processing technique that addresses both forecast bias and underdispersion. The technique is based on multiple linear regression. The EMOS technique yields probabilistic forecasts that take the form of Gaussian predictive probability density functions (PDFs) for continuous weather variables, and ... |
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| The Sensitivity and Specificity of Oculometrics Under Fatigue Stress Compared to Performance and Subjective Measures |
MAY 2004 |
24 pages |
| Authors:
James c. Miller; Douglas R. Eddy; Joseph Fischer; NTI INC BROOKS CITY-BASE TX
|
| We wished to compare the sensitivity of oculometric measures under fatigue stress to the sensitivities of performance and subjective measures, and to assess the specificity of oculometrics for predicting performance effects. We used data from the first night of sleep deprivation in a sleep aids study. Each of 13 subjects was represented four times in the final data set, with each of these four nights separated by at least a ... |
|
| Analysis of Algorithms Predicting Blood: Air and Tissue: Blood Partition Coefficient from Solvent Partition Coefficients for Use in Complex Mixture Physiological Based Pharmacokinetic/Pharmacodynamic Modeling |
MAR 2004 |
79 pages |
| Authors:
Teresa R. Sterner; Peter J. Robinson; David R. Mattie; G. A. Burton; OPERATIONAL TECHNOLOGIES CORP BEAVERCREEK OH
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| Algorithms predicting tissue and blood partition coefficients (PCs) from solvent properties (octanol:water, saline or water:air, oil:air coefficients) were compared to assess their usefulness for a petroleum mixtures physiologically based pharmacokinetic/pharmacodynamic model. Measured blood:air and tissue:blood PCs were sought from literature resources for 14 JP-8 components. PCs, mainly from vial equilibration experiments, were separated by species (rat and human) and averaged by tissue and chemical. Average experimental PCs were then compared ... |
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| A Microplate Assay for the Determination of Hemoglobin Concentration |
2004 |
4 pages |
| Authors:
Michael D. Frenchik; Steve J. McFaul; Latchezar I. Tsonev; WALTER REED ARMY INST OF RESEARCH SILVER SPRING MD
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| The conversion of all hemoglobin species to cyanmethemoglobin (CNMetHb) by the addition of potassium ferricyanide and potassium cyanide (Drabkin s reagent) and the subsequent absorbance measurement at 540 nm is used widely in clinical and research laboratories as the standard method for hemoglobin quantitation. In 1984, however, Zander et al. [1] described a spectrophotometric assay based upon the conversion of hemoglobin species to an alkaline hematin detergent complex designated D-575 ... |
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LINEAR REGRESSION ANALYSIS
