| Baseline Field Testing of BB-2590 Lithium-Ion Batteries using an iRobot FasTac 510 Robot |
17 Sep 2010 |
38 pages |
| Authors:
Kevin Boice; Anthony Leo; Joseph Lee; Paulson; John Jr; Matt Skalny; Ty Valascho; ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI
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 | Field testing of the 6.8 Ah BB-2590 Li-Ion Battery was performed to record and analyze power consumption and energy management characteristics as a baseline for future improvements. The testing was performed using an iRobot FasTac 510 robotic platform, using Mission 1 from the document Small Robot Mission Profiles V09. |
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| Confidence Interval Methodology for Ratio Means (CIM4RM) |
Aug 2010 |
22 pages |
| Authors:
Nierwinski; John Jr; ARMY MATERIEL SYSTEMS ANALYSIS ACTIVITY ABERDEEN PROVING GROUND MD
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| The U.S. Army and many other government and private organizations need to evaluate ratio means to help them make informed life cycle management decisions. A ratio mean is the ratio of the mean of two random variables, X and Y. whose corresponding terms are paired. An example of a ratio mean that the Army evaluates is the maintenance ratio (MR). The Army collects MR data from a sample of vehicles ... |
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| Interdisciplinary Studies on the Combat Readiness and Health Issues Faced by Military Personnel |
01 Sep 2009 |
19 pages |
| Authors:
Hart; John Jr; TEXAS UNIV AT DALLAS RICHARDSON
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| The goal of this research project was twofold. Task number 1: Assemble a multimodal human performance laboratory that includes a complex human motor assessment system, 128 channel electroencephalogram/event-related potential system, a pupilometer/eye-tracking system, and a repetitive transcranial magnetic stimulation system. Task number 2: Conduct a pilot research study demonstrating the capabilities of performing multimodal assessment of object retrieval, particularly when those objects may be considered threatening or nonthreatening. Task 1 ... |
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| Reserve Forces: Army Needs to Finalize an Implementation Plan and Funding Strategy for Sustaining an Operational Reserve Force |
Sep 2009 |
56 pages |
| Authors:
John Pendleton; Margaret Morgan; Melissa Blanco; Susan Ditto; Nicole Harms; Kevin Keith; Susan Mason; Charles Perdue; Smale; John Jr; Suzanne Wren; Matthew Young; GOVERNMENT ACCOUNTABILITY OFFICE WASHINGTON DC
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| Since September 11, 2001, the Army has heavily used its reserve components -- the Army National Guard and Army Reserve -- for ongoing operations even though they were envisioned and resourced to be strategic reserves. A congressional commission, the Department of Defense (DoD), and the Army have concluded that the Army will need to continue to use its reserve components as an operational force. The transition will require changes to ... |
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| Analysis of Adhesively Bonded Ceramics Using an Asymmetric Wedge Test |
Dec-2008 |
32 pages |
| Authors:
Andres Bujanda; Gillespie; Stephen Koellhoffer; Steven McKnight; Wendy Kosik; Robert Jensen; Larry Holmes; Aaron Forster; Jessica Dibelka; Craig Copeland; John Jr; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE
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| Quantitative determination of adhesive performance when bonding to ceramic substrates has traditionally been a challenge. The brittleness of ceramic materials limits the ability to easily machine these substrates into the specific geometries required for rigorous adhesive fracture energy measurements. In this research, a mixed-mode loading scheme was implemented using an asymmetric wedge test configuration to study the effects of adhesion, promoting surface treatments on fracture energy and bond line durability ... |
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| Environmentally Friendly Bio-Based Vinyl Ester Resins for Military Composite Structures |
Dec-2008 |
11 pages |
| Authors:
Michael Starks; John J Scala; Giuseppe R Palmese; Steven E Boyd; Ian McAninch; David Fudge; Dane Morgan; Maureen Foley; Jorge Gomez; John Jr; La; Xing Geng; Ken Patterson; Frank Bruce; Stephen Andersen; Lawrence Coulter; Roger Crane; James M Sands; Gillespie; Alexander Grous; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD
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| Liquid resins used for molding composite structures a significant source of volatile organic compounds (VOC) and hazardous air pollutant (HAP) emissions. One method of reducing styrene emissions from vinyl ester (VE) resins is to replace some or all of the styrene with fatty acid-based monomers. These fatty acid vinyl ester resins allow for the formulation of high performance composite resins with no more than 25 wt% styrene. As a result, ... |
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| Fire Fighters' Ability and Willingness to Participate in a Pandemic |
Mar 2008 |
117 pages |
| Authors:
Delaney; John Jr; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
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| Current estimates predict that 30-40 percent of the population will be infected with the flu virus during a pandemic. Fire departments should anticipate a higher attack rate for their personnel because of increased exposure risk. Additionally, many variables will negatively influence fire fighter participation rates over and above these attack rates. This thesis analyzes fire fighters ability and willingness to participate in a pandemic through a comprehensive survey of fire ... |
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| DoD's Collaborative Approach to Developing Biometrics Standards |
Jun 2004 |
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| Authors:
Woodward; John Jr; RAND ARROYO CENTER SANTA MONICA CA
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 | DoD has a growing need to control access to its many assets both in times of war and in times of peace. Similarly, DoD organizations must always be ready to identify friend or foe. This requirement is heightened in the global war on terrorism, where the enemy has demonstrated its ability to use sophisticated methods to exploit flaws in current identity management systems. The terrorist attacks of September 11, 2001, ... |
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| Pattern Search for Mixed Variable Optimization Problems |
27 Feb 2003 |
97 pages |
| Authors:
Mark A Abramson; Charles Audet; Dennis; John Jr; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH
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| CONCLUSIONS: We have found an effective method for mixed variable problems ... BUT ... It requires serious thinking by the user as to what constitutes an acceptable solution for each problem * It is not easy to incorporate surrogates with categorical variables * It is unlikely to be effective for many categorical variables * We have analyzed the method, BUT..., better results depend on the filter method for continuous variables. ... |
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| Compressive Strength of Flat Panels With Z-and Hat-Section Stiffeners |
Jun 1944 |
36 pages |
| Authors:
Joseph N Kotanchik; Robert A Weinberger; George W Zender; Neff; John Jr; NATIONAL AERONAUTICS AND SPACE ADMIN LANGLEY RESEARCH CENTER HAMPTON VA
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| Compression tests were conducted on 247 panels with Z-section stiffeners and 304 panels with hat-section stiffeners. Specimens were constructed from artificially aged Alclad 24S aluminum alloy with minimum guaranteed yield strengths of 64 and 57 ksi for stiffeners and sheet materials, respectively. Height, thickness, and spacing of stiffeners, sheet thickness, and length of specimens were varied systematically to show effects of changes in these dimensions on panel strength. Results show ... |
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