| Air Weaponry Noise Source Characterization Protocol |
Nov 2008 |
83 pages |
| Authors:
Chris Hobbs; Micah Downing; Bruce Ikelheimer; Michael James; WYLE RESEARCH LABS ARLINGTON VA
|
 | The technical report consists of three main elements: (1) measurement of real, airborne weapon systems to characterize the noise data required for accurate modeling, including characterization of complex air-weaponry noise due to a combination of various sources and aircraft platforms; (2) modification of noise propagation algorithms and statistical representation of the distributed sources, and modifications that involve three-dimensional representations of noise sources to properly describe the air-to-ground propagation, and to ... |
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| An Investigation of Community Attitudes Toward Blast Noise: Methodology |
OCT 2007 |
40 pages |
| Authors:
Larry L. Pater; Edward T. Nykaza; George Luz; Anthony Atchley; Kathleen Hodgdon; Robert Baumgartner; Pamela Rathbun; ENGINEER RESEARCH AND DEVELOPMENT CENTER CHAMPAIGN IL CONSTRUCTION ENGINEERING RESEARCH LAB
|
| The military has determined that current blast noise impact assessment procedures do not fully meet the military's noise management needs. Noise impacts are almost universally assessed in terms of the response metric "annoyance" as predicted by a long-term average noise level metric. This has proven to be unsatisfactory for extremely variable impulsive military noise. Individual event noise levels from military testing and training activities can be loud enough to elicit ... |
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| Investigation of the Impact of Sonar Transmission on Fisheries and Habitat in the U.S. Navy's USWTR: Summary of Stakeholder Concerns and Appropriate Research Areas |
SEP 2007 |
30 pages |
| Authors:
Andrew Read; Elliott Hazen; DUKE UNIV BEAUFORT NC MARINE LAB
|
| Public comments responding to the Draft Environmental Impact Statement (October 2005) for the proposed Undersea Warfare Training Range (USWTR) off North Carolina were analyzed to provide a comprehensive view of stakeholder concerns. Three main areas of public concern -- short- and long-term effects on fish from mid-frequency sonar operations, displacement of fishermen during training exercises, and habitat modification/destruction -- were identified. Research areas that might address these concerns also were ... |
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| Environmental Assessment for Proposed Replacement of the Squadron Operations Facility at the 140th Wing, Colorado Air National Guard |
SEP 2007 |
146 pages |
| Authors:
Elizabeth Meyer; Kate Bartz; Carlos Jallo; Elise Sheva; Jeff Lindquist; SCIENCE APPLICATIONS INTERNATIONAL CORP TUCSON AZ
|
| The 140th Wing (140 WG) of the Colorado Air National Guard (ANG) proposes to construct and operate an adequately sized, technologically up-to-date, and properly configured Squadron Operations Facility at Buckley Air Force Base (AFB) to accommodate the requirements of the Air Sovereignty Alert (ASA) and North American Aerospace Defense Command (NORAD) missions. The Proposed Action would provide a new Squadron Operation Facility as well as interior modifications to the existing ... |
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| Environmental Assessment 819th Red Horse Five Year Plan, Malmstrom Air Force Base, Montana |
07-Aug-2007 |
96 pages |
| Authors:
RAPID ENGINEER DEPLOYABLE HEAVY OPERATIONAL REPAIR SQUADRON ENGINEER (RED HORSE) 823D TYNDALL AFB FL
|
| This EA analyzes the potential environmental impacts from the proposed and alternative actions at Malmstrom AFB in Great Falls Montana. The Proposed Action supports mission requirements of the 819th RHS. Construction of new facilities and expansion of existing facilities is needed to address the shortfall in space required by the 819th RHS. The purpose of this action is to provide adequate space for the efficient execution of the 819th RHS ... |
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| Environmental Assessment for Proposed Construction Freight Transfer Facility, Buckley Air Force Base, Colorado |
JUN 2007 |
130 pages |
| Authors:
Elizabeth Meyer; Mark Merrill; Debbie Zapalac; Elise Sherva; Jeff Lindquist; NATIVE ENERGY AND TECHNOLOGIES INC NEW BRAUNFELS TX
|
| Under the Proposed Action, Air Force Element Program Resource Office (AFE PRO) and Defense Courier Service (DCS) is proposing to construct and operate a Freight Transfer Facility at Buckley AFB. This proposed 12,000 square foot (ft2) facility, associated parking, utilities, and security will accommodate the mission beddown of AFE PRO & DCS on Buckley AFB. The proposed facility will be sited adjacent to taxiway H, north of taxiway D. Construction ... |
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| Hearing Protection for High-Noise Environments. Part 1 |
31 MAY 2007 |
60 pages |
| Authors:
Elizabeth Bleszynski; Marek Bleszynski; Thomas Jaroszewicz; MONOPOLE RESEARCH THOUSAND OAKS CA
|
| Report developed under STTR contract for topic AFO6-T035. The objective of our effort was to develop powerful soffware tools and to perform high fidelity simulation which would allow identification and understanding of relevant bioacoustic and psychoacoustic mechanisms responsible for the transmission of acoustic energy through non-airborne pathways to the cochlea. As the main achievements of our Phase I work we consider: - development of a set of algorithms (including non-lossy, ... |
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| ERDC-CERL LD-870 Download Program Developed for Aberdeen Test Center: User's Manual |
MAY 2007 |
48 pages |
| Authors:
Ben Niemoeller; Edward T. Nykaza; ENGINEER RESEARCH AND DEVELOPMENT CENTER CHAMPAIGN IL CONSTRUCTION ENGINEERING RESEARCH LAB
|
| The U.S. Army Engineer Research and Development Center Construction Engineering Research Laboratory has developed software that interfaces with an array of Larson-Davis Model 870 (LD-870) Environmental Noise Monitors for Aberdeen Test Center. This document provides step-by-step instructions for operating the software program used to setup and download data from these noise monitors. It provides a troubleshooting guide for resolving known issues with the monitoring system and contains information regarding modem ... |
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| Environmental Assessment for a Two-Story Addition to Building 503 -- Hydraulic Flight Controls Lean Transformation |
MAR 2007 |
57 pages |
| Authors:
Kay Winn; Staci Hill; Josephine Lee; Wendy Longley-Cook; Sam Johnson; CH2M HILL SALT LAKE CITY UTAH
|
| The current configuration of the hydraulic/pneudraulic repair facility at Hill Air Force Base (AFB) is restricted in the types of weapon systems it supports and the amount of work that can be accomplished there. Hill AFB requires a facility that would accommodate increased workload capacity and adapt to changes in workload mix. The project involves constructing a two-story addition (10,000 square feet per floor) on the north side of Building ... |
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| Final Environmental Assessment Demolition of Alpha Ramp, Grand Forks Air Force Base, North Dakota |
JAN 2007 |
142 pages |
| Authors:
319 CIVIL ENGINEER SQUADRON GRAND FORKS AFB ND
|
| The 319 ARW is proposing to demolish A-Ramp and its associated facilities and buildings. The purposes of the project are: to remove the A-Ramp facilities and infrastructure that are no longer needed; to remove excess buildings and utilities that represent sources of potential contamination; and to remove excess buildings and facilities (including walls) that are in the 7:1 flight envelope, clear zone, and 50:1 approach-departure clearance zone and require flight-line ... |
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| Integration of Marine Mammal Movement and Behavior into the Effects of Sound on the Marine Environment |
Jan-2007 |
4 pages |
| Authors:
Dorian S Houser; BIOMIMETICA SANTEE CA
|
| Integration of the Marine Mammal Movement and Behavior (3MB) model into the Effects of Sound on the Marine Environment (ESME) program contributes to the ultimate goal of creating an environmental impact assessment tool for Navy acoustic activities in the ocean. The objectives of the effort are to 1) integrate the 3MB module into the second generation model of ESME, 2) incorporate the influence of bathymetric features on simulated marine mammal ... |
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| Environmental Assessment for Enhanced Use Leasing West Side Development, Phase I South, Hill AFB, Utah |
SEP 2006 |
47 pages |
| Authors:
Kay Winn; CH2M HILL SALT LAKE CITY UTAH
|
| This document presents potential environmental and socioeconomic consequences associated with the proposed project called the West Side Development, Phase 1 South, developing approximately 44 acres of currently vacant property. Administrative office space and parking lots comprise the proposed development. Roads and utility infrastructure will be added to the vacant acreage during construction. Structures built during this phase would be used to accommodate administrative personnel who currently work at the base. ... |
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| Sound Attenuation from Earmuffs and Earplugs in Combination: Maximum Benefits vs. Missed Information |
Sep-2006 |
7 pages |
| Authors:
Patricia Odell; Sharon M Abel; DEFENCE RESEARCH AND DEVELOPMENT TORONTO (ONTARIO) JUDGEMENT AND DECISION-MAKING GROUP
|
| High noise levels from aircraft, small and large caliber weapons, land vehicles, ships, or submarines are characteristic of military operational environments. Continuous levels in the interior of fixed or rotary wing aircraft or in the vicinity of jet engines range from 100 - 130 dBA (15,18). Peak sound pressure levels from impulse noise produced by a howitzer may be as high as 180 dB SPL (28). Small caliber weapons such ... |
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| Water Collection Purification System: Identifying CF Capabilities and Requirements, and Assessing off-the-Shelf Purification Systems |
AUG 2006 |
|
| Authors:
Bernadette Quemerais; DEFENCE RESEARCH AND DEVELOPMENT TORONTO (CANADA)
|
 | The Water Collection Purification System project is part of the Shelter and Survival Equipment project (12cy) sponsored by DLR. The objective is to provide to the military a water purification system suitable for all operational/environmental conditions. The capabilities of the CF in terms of both purification and testing have been assessed. Users of the current system as well as PMed technicians have been contacted in order to discuss both the ... |
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| The Range Managers Toolkit (RMTK) Noise Tool |
JUN 2006 |
53 pages |
| Authors:
Michelle E. Swearingen; ENGINEER RESEARCH AND DEVELOPMENT CENTER CHAMPAIGN IL CONSTRUCTION ENGINEERING RESEARCH LAB
|
| The Range Managers Toolkit (RMTK) Noise Tool is a noise prediction and impact assessment software tool designed to enable installation Range Control offices to quickly assess the noise impact of military training or testing at a specified site under a variety of weather conditions, and to plan preliminary range siting for noise. The noise model outputs a map display that designates acoustic regions in decibels and by color. This work ... |
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| Programmatic Environmental Assessment for Standard Targetry Replacement |
APR 2006 |
67 pages |
| Authors:
ARMY ENVIRONMENTAL CENTER ABERDEEN PROVING GROUND MD
|
| This Programmatic Environmental Assessment (PEA) evaluates potential direct, indirect, and cumulative impacts of standard targetry replacement and alternatives on environmental and land use resources. The Army believes that the majority of typical and recurring actions associated with standard targetry replacement can be best and most efficiently addressed in this PEA, instead of a separate environmental assessment (EA) for every action, as normally or historically required. To insure proper utilization of ... |
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| An Analysis of USAF Aircraft Noise and Hedonic Property Values |
MAR 2006 |
81 pages |
| Authors:
Melissa R. Johnson; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT
|
| The primary purpose of the research was to evaluate whether there was a significant difference in housing values of those affected by the noise of USAF aircraft. The secondary purpose was to evaluate whether there was a significant difference in housing values located near USAF bases with and without aircraft noise and to evaluate whether type of aircraft changed the results created by the aircraft noise. This research effort found ... |
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| Effect of Age-Dependent Forest Characteristics on Acoustic Propagation |
MAR 2006 |
38 pages |
| Authors:
Michelle E. Swearingen; ENGINEER RESEARCH AND DEVELOPMENT CENTER CHAMPAIGN IL CONSTRUCTION ENGINEERING RESEARCH LAB
|
| This report contains the results of a theoretical study on the impact of forest stand age on acoustic propagation. A red pine forest was simulated at 10, 20, 30, 40, and 80 years of age, with assumptions that it was being maintained for utility pole harvest. Forest parameters, such as density, height, and diameter of trees, were used to predict vertical sound speed profiles and then acoustic propagation. The resulting ... |
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| Environmental Assessment for Capital Improvement Projects, Buckley Air Force Base, Colorado. Volume 1 of 2 |
MAR 2006 |
324 pages |
| Authors:
Eric Barndt; John DuWaldt; Connie Chitwood; Robert Zimmer; Joe Rigley; AIR FORCE CENTER FOR ENVIRONMENTAL EXCELLENCE BROOKS AFB TX
|
| Pursuant to the National Environmental Policy Act (NEPA) of 1969, as amended, Council on Environmental Quality NEPA implementing regulations (40 Code of Federal Regulations [CFR] Parts 1500-1508), and Air Force NEPA implementing regulations (32 CFR 989), the USAF 460 SW conducted an assessment of the potential consequences of proposed infrastructure Capital Improvement Projects (CIP) at Buckley Air Force Base (BAFB) that are described below in the Proposed Action. PROPOSED ACTION: ... |
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| Environmental Assessment for Capital Improvement Projects, Buckley Air Force Base, Colorado. Volume 2 of 2 |
MAR 2006 |
462 pages |
| Authors:
Eric Barndt; John DuWaldt; Connie Chitwood; Robert Zimmer; Joe Rigley; AIR FORCE CENTER FOR ENVIRONMENTAL EXCELLENCE BROOKS AFB TX
|
| List of Appendices: APPENDIX A: Original General Plan Figures APPENDIX B: Construction Ground Disturbance Detail Table APPENDIX C: Demolition Ground Disturbance Detail Table APPENDIX D: Construction and Operation Air Emissions Calculations APPENDIX E: Construction and Demolition Dust Suppression Water Use Table APPENDIX F: Construction and Demolition Project Solid Waste Generation Table APPENDIX G: Proposed Action Traffic Impacts APPENDIX H: Cumulative Traffic Impacts APPENDIX I: Cumulative Impervious Surface/Increased Runoff Calculations APPENDIX ... |
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| Environmental Assessment for Construct Physical Fitness Center, Malmstrom Air Force Base, Montana |
Jan-2006 |
68 pages |
| Authors:
Tony P Lucas; CIVIL ENGINEERING SQUADRON ( 341ST) MALMSTROM AFB MT
|
| This document was prepared by the 341st Civil Engineer Squadron, Environmental Flight, Malmstrom AFB, Montana. This draft report is intended to permit Malmstrom AFB to make a fully informed decision and provide public notice for the proposed project to satisfy requirements set forth in the National Environmental Policy Act. Comments based on this draft Environmental Assessment shall be consolidated and used to develop a final Environmental Assessment which will determine ... |
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| Development of Low-Noise High-Pressure Fans for Ship Collective Protection II: Engineering Development |
2006 |
23 pages |
| Authors:
Mark Huebner; Nick Tzortzinis; Thomas Van Doren; John Larzelere; NEW WORLD ASSOCIATES INC FREDERICKSBURG VA
|
| The focus of development of these high-pressure vaneaxial fans for ship collective protection systems (CPS) was on redesigned impellers and stators to increase aerodynamic efficiency and lower the acoustic noise levels produced by the fans. The sound power generated by these fans was been reduced by over 12 dB and the energy consumption by over 20%. The rotors have been designed and fabricated to comply with new factor of safety ... |
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| Postdeployment Hearing Loss in U.S. Army Soldiers Seen at Audiology Clinics from April 1, 2003, through March 31, 2004 |
DEC 2005 |
9 pages |
| Authors:
Thomas M. Helfer; Nikki N. Jordan; Robyn B. Lee; ARMY CENTER FOR HEALTH PROMOTION AND PREVENTIVE MEDICINE ABERDEEN PROVING GROUND MD
|
| U.S. Army soldiers face unique noise exposures in the current deployed setting. The effects of these deployment-related exposures have not previously been documented. In an attempt to initiate this process, medical evaluations performed at military audiology clinics from April 2003 through March 2004 were reviewed to compare noise-induced hearing loss injury (NIHLI) outcomes among soldiers whose diagnoses were classified as postdeployment-related versus non-postdeployment-related. Sentinel NIHLI outcomes of interest included acoustic ... |
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| Active Military Sonar and Marine Mammals: Events and References |
03 NOV 2005 |
|
| Authors:
Eugene H. Buck; Kori Calvert; LIBRARY OF CONGRESS WASHINGTON DC CONGRESSIONAL RESEARCH SERVICE
|
| The deployment of active sonar by the U.S. Navy and its potential impacts on marine mammals has been an ongoing issue of intense debate; regulatory, legislative, and judicial activity; and international concern. Some peacetime use of military sonar has been regulated under the Marine Mammal Protection Act (MMPA) and other statutes due to concerns that active military sonars are operated at frequencies used by some cetaceans (i.e., whales, porpoises, and ... |
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| Final Environmental Assessment: Proposed T-10 Engine Test Cell Facilities, Hill Air Force Base, Utah |
21 OCT 2005 |
43 pages |
| Authors:
Randal Klein; Kay Winn; STREAMLINE CONSULTING LLC FARMINGTON UT
|
| Hill AFB proposes to accommodate current United States Air Force (USAF) missions by constructing two engine test cell facilities. The proposed facilities would be large enough to house all of the required systems and equipment for testing F/A-22, F-16, and A-10 aircraft engines while mounted on an intact aircraft. The proposed action, alternate locations, and the no action alternative were all considered in detail. The proposed action could be implemented ... |
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| Effects of Forest on Blast Noise |
OCT 2005 |
29 pages |
| Authors:
Michelle E. Swearingen; Michael J. White; ENGINEER RESEARCH AND DEVELOPMENT CENTER CHAMPAIGN IL CONSTRUCTION ENGINEERING RESEARCH LAB
|
| Low-frequency impulsive noise, characteristic of demolitions, artillery, and armor, is difficult to mitigate. In 2001, ERDC-CERL researchers were tasked to study the potential attenuation caused by a forest. After a thorough review of published work, it was determined that an experiment was necessary. This took place in July 2002 at the Lone Star Army Ammunition Plant in Texarkana, Texas. This report presents the data analysis and draws conclusions about the ... |
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| Research and Sustainment for Crew Systems Interface Laboratory (R&SCIL) |
SEP 2005 |
49 pages |
| Authors:
SYTRONICS INC DAYTON OH
|
| In the past, Government/ contractor relations for technical support contracts focused solely on the research as a collaborative team effort. However, today's diminishing research funding and the need for more outside exposure demand that the entire process of research, marketing, and technology transition be collaborative efforts among the Government and support contractors. The main program management thrust at the onset of R&SCSIL was to market the lab as widely and ... |
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| Australian Humpback Whales and Ambient Noise |
30 JUN 2005 |
14 pages |
| Authors:
Malcolm D. Stokes; Grant Deane; SCRIPPS INSTITUTION OF OCEANOGRAPHY LA JOLLA CA MARINE PHYSICAL LAB
|
| The goal of the Humpback Acoustic Research Collaboration (HARC) is to understand the behavioral responses of large marine mammals to their surrounding acoustic environment. The fundamental thesis of the HARC project is that the effects of ambient ocean noise from natural and anthropogenic sources on baleen whales (Humpback, Megaptera novaeangliae) can be deduced by making careful observations in the presence and absence of sound. Visual observations from land and surface ... |
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| Noise: A Limiting Factor for the Use of Modern Weapon Systems? |
01 APR 2005 |
15 pages |
| Authors:
A. Dancer; K. Buck; INSTITUT FRANCO-ALLEMAND DE RECHERCHES SAINT-LOUIS (FRANCE)
|
| Continuous and/or impulse noises produced by modern weapon systems constitute a threat for the health of the soldier and impede his operational ability. Moreover, their levels often exceed the statutory exposure limits as well for the users (unprotected and protected ears) as for the nearby community. The noise of the modern weapon systems is a limiting factor for their use either because no present hearing protection is able to protect ... |
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| Environmental Assessment for Demolition of Lighter Than Air (LTA) Buildings 868, 869, 948 and 949 at Langley Air Force Base, Virginia |
APR 2005 |
91 pages |
| Authors:
David Dischner; Claudia Druss; Tyrone Corn; Christa Stumpf; SCIENCE APPLICATIONS INTERNATIONAL CORP NEWPORT NEWS VA
|
| This environmental assessment (EA) describes the potential environmental consequences resulting from a proposal to demolish four houses in the LTA area. These houses, which are currently vacant, are inconsistent with base architectural standards and Air Force housing standards. Six resource categories received a thorough evaluation to identify potential impacts. Any noise associated with this action would be temporary and limited to daytime hours. Air quality would not be significantly affected, ... |
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| Auditory Tests for the Early Detection of Noise-Susceptible Individuals - A Literature Study |
APR 2005 |
|
| Authors:
Joos Vos; HUMAN FACTORS RESEARCH INST TNO SOESTERBERG (NETHERLANDS)
|
| As a result of noisy military systems and the limited applicability of personal hearing protection, there continues to be a high incidence of noise-induced hearing loss (NIHL) among military personnel. One of the ways to reduce the adverse effects of noise, such as a decreased hearing acuity and a noticeable reduction in the ability to understand speech in noisy conditions, might be the selection of persons who are less susceptible ... |
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| Noise-Induced Hearing Loss in Canadian Military Personnel |
APR 2005 |
|
| Authors:
Sharon M. Abel; DEFENCE RESEARCH AND DEVELOPMENT TORONTO (CANADA)
|
| The escalating cost of claims for noise-induced hearing loss in the Canadian Forces (CF) prompted the review of current hearing conservation practices. As a first step, a prospective study was conducted to assess risk factors for the development of hearing loss in a wide range of military trades. A total of 1,057 individuals working in land, sea and air environments at five CF military bases contributed their current hearing test ... |
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| Evaluation of Noise Effects in Auditory Function in Spanish Military Pilots |
APR 2005 |
9 pages |
| Authors:
J. M. Lorente; B. Puente; B. Esteban; F. Rios; P. Vallejo; C. Velasco; CIMA MADRID (SPAIN)
|
| Military pilots are particularly exposed to a wide variety of environmental stresses, one of which is the noise produced by the aircraft used for flying duties. In addition to aircraft noise, changes in cabin pressure and vibration can be considered as contributing factors. Adverse effects can be produced under several situations, through exposure to noise in the flight line or during taxi, take off, or cruise operations. The environmental stress ... |
|
| Improving the Effectiveness of Communication Headsets with Active Noise Reduction: Influence of Control Structure |
APR 2005 |
9 pages |
| Authors:
Anthony J. Brammer; Donald R. Peterson; Martin G. Cherniack; Subhash Gullapalli; ENVIR-O-HEALTH SOLUTIONS OTTAWA (ONTARIO)
|
| For communication headsets equipped with active noise reduction (ANR), the performance of the control system may influence the communication signal reaching the ear. Conversely, the communication signal may perturb the operation of the ANR system. The interaction between the communication and control signals depends primarily on the control structure, and on the bandwidths and frequency responses of the signal channels. The effects are described for two circumaural communication headsets with ... |
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| Investigating Double Hearing Protection using Human Subjects |
APR 2005 |
|
| Authors:
Christopher Tubb; Susan Mercy; Soo James; QINETIQ FARNBOROUGH (UNITED KINGDOM) HUMAN FACTORS IN ACOUSTICS AND VIBRATION
|
| With the growing need to protect the hearing of military personnel, the use of double protection, earplugs and earmuffs used in combination, has become more and more prevalent. Furthermore Active Noise Reduction (ANR) headsets and earplugs appear to offer a means of increasing the attenuation of these double protection systems. However, it has been shown that the attenuation afforded by double protection is not a simple additive process; the combined ... |
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| CONSTRAINTS and NEEDS in the Auditory and Vocal Environment of Modern Air Combat |
APR 2005 |
7 pages |
| Authors:
Frederic Bigot; MINISTERE DES ARMEES PARIS (FRANCE)
|
| In modern air combat, it is mandatory for the pilot to be able to communicate with other jet fighters and to understand the flow of information coming into the cockpit. The coordination between aircraft must be as efficient as possible to build a common situational awareness (SA) and avoid any unexpected enemy attacks. In addition to the ambient noises in a jet fighter's cockpit, numerous sounds are used to allow ... |
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| Environmental Assessment for Demolition of Multiple Facilities at Langley Air Force Base, Virginia |
MAR 2005 |
114 pages |
| Authors:
David Dischner; Lorraine Gross; David Lingner; Kathleen Sherwood; SCIENCE APPLICATIONS INTERNATIONAL CORP SAN DIEGO CA
|
| This environmental assessment (EA) describes the potential environmental consequences for the demolition of five facilities on Langley AFB, to include the LOX storage facility, LOX maintenance facility, small gas engine repair shop, greenhouse, and the security police operations building. Seven resource categories received a thorough evaluation to identify potential impacts. An increase to safety risks during demolition would be mitigated by employing standard safety procedures. Any noise associated with work ... |
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| Measurement of Human Performance for Future Combat Systems Command and Control |
DEC 2004 |
9 pages |
| Authors:
Carl W. Lickteig; William R. Sanders; James W. Lussier; Paula J. Durlach; ARMY RESEARCH INST FOR THE BEHAVIORAL AND SOCIAL SCIENCES ALEXANDRIA VA
|
| Historically, Army acquisition has had difficulty conducting an adequate early assessment of the human dimension in system performance. Proactive research on human performance, however, is vital to achieving the unprecedented alliance of humans and machines anticipated with Future Combat Systems (FCS). This paper summarizes research methods and findings across four exploratory experiments focused on the command group of a small combined arms unit composed primarily of unmanned air and ground ... |
|
| Energy Finite Element Analysis System |
31 OCT 2004 |
19 pages |
| Authors:
Nickolas Vlahopoulos; MICHIGAN ENGINEERING SERVICES LLC ANN ARBOR MI
|
| This report was developed under SBIR contract award for Solicitation topic #N04-132 New Naval initiatives, like the DD(X) program, impose stringent noise and vibration targets, and require assessment and reduction of noise due to machinery, flow, and propulsion. A typical surface ship structure exhibits thousands of normal modes below 30Hz. Thus, the frequency range of interest from signature and hull vibration objectives extends far beyond what existing finite element based ... |
|
| Measurement and Analysis of the Noise of Off-Road Vehicles |
OCT 2004 |
8 pages |
| Authors:
Rostislav Kubena; Miroslav Krizek; TATRA KOPRIVNICE (CZECH REPUBLIC)
|
| Being assembled of many moving parts, every vehicle is a source of harmful noise. Total vehicle noise is a sum of noise contributions produced by parts that appear as noise sources. The most important noise sources seem to be the vehicle driveline system parts, i.e. engine, transmission, axles and tires. However, total noise indication by itself is not sufficient and detailed signal analysis is necessary to be performed so as ... |
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| Drinking Water. Experts' Views on How Federal Funding Can Best Be Spent to Improve Security |
30 SEP 2004 |
23 pages |
| Authors:
GOVERNMENT ACCOUNTABILITY OFFICE WASHINGTON DC
|
| GAO's expert panel cited distribution systems as among the most vulnerable physical components of a drinking water utility, a conclusion also reached by key research organizations. Also cited were the computer systems that manage critical utility functions; treatment chemicals stored on-site; and source water supplies. Experts further identified two key factors that constitute overarching vulnerabilities: (1) a lack of the information individual utilities need to identify their most serious threats ... |
|
| Correlation of Flow Structures and Radiated Noise in High Speed Jets |
APR 2004 |
30 pages |
| Authors:
M. Samimy; J. Hileman; E. Caraballo; B. Thurow; OHIO STATE UNIV COLUMBUS GAS DYNAMICS AND TURBULENCE LAB
|
| The dynamics of large-scale turbulence structures within a high Reynolds number, ideally expanded Mach 1.3 jet were investigated during both the periods of production of strong acoustic radiation and extended periods of relative quiet that lacked such acoustic radiation. These results were acquired through a unique experiment where the sources of large amplitude sound waves were estimated with a three-dimensional microphone array and the flow field was simultaneously visualized on ... |
|
| Calculations of Inhomogeneous Ground Effects in Outdoor Sound Propagation Using the Boundary Element Method (BEM) |
APR 2004 |
21 pages |
| Authors:
Donald G. Albert; ENGINEER RESEARCH AND DEVELOPMENT CENTER HANOVER NH COLD REGIONS RESEARCH AND ENGINEERING LAB
|
| This report summarizes the results of a study to calculate the effect of inhomogeneous ground impedance on acoustic wave propagation. The boundary element method was used to investigate the effect of snow or bare ground patches along the acoustic propagation path. This method can be used to calculate the effect of inhomogeneities in the propagation medium with a relatively small computational effort compared to many other methods (for example, the ... |
|
| Environmental Mitigation Ranges around Australia |
FEB 2004 |
|
| Authors:
Paul Clarke; DEFENCE SCIENCE AND TECHNOLOGY ORGANISATION EDINBURGH (AUSTRALIA) MARITIME OPERATIONS DIV
|
| URS Australia is currently writing "Environmental Management Plan for Australian Maritime Exercise Areas" for the ADF. To help URS, the MOD within DSTO has modeled the expected received sound pressure levels for a number of different environments and sonar frequencies around Australia. The maximum ranges the sound pressure levels dropped below 182 and 160 dB were then calculated for a number of different sonars operating at levels indicative of or ... |
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| E-3 In-Flight Acoustic Exposure Studies and Mitigation Via Active Noise Reduction Headset |
DEC 2002 |
73 pages |
| Authors:
Frank Mobley; John A. Hall; Donald Yeager; HUMAN EFFECTIVENESS DIRECTORATE WRIGHT-PATTERSON AFB OH CREW SYSTEM INTERFACE DIV
|
| Recordings of the noise environment aboard an E-3 AWACS aircraft were made. The measurements were accomplished according to standard procedures of AFRL Aural Displays and Bioacoustics Branch. The measurements were made at various locations in the aircraft during a training sortie. The measurements were accomplished with the current hearing protection device (a David Clark HlO76 headset) and an Active Noise Reduction (ANR) headset (a David Clark H1O76- XL). It was ... |
|
| Prioritization of Threatened and Endangered Species Sound Research on Army Installations |
NOV 2002 |
78 pages |
| Authors:
David K. Delaney; ENGINEER RESEARCH AND DEVELOPMENT CENTER CHAMPAIGN IL CONSTRUCTION ENGINEERING RESEARCH LAB
|
| This report represents the first year of a continuing study addressing the effects of military training noise on Threatened and Endangered Species (TES). The purpose off this study was to prioritize specific TES of concern from the U.S. Army Environmental Requirement and Technology Assessment species list and develop a prioritized list of TES for future noise research relative to military training noise effects. The primary research objective for future noise ... |
|
| Assessment of Training Noise Impacts on the Red-Cockaded Woodpecker: 1998-2000 |
NOV 2002 |
100 pages |
| Authors:
David K. Delaney; Larry L. Pater; Robert J. Dooling; Bernard Lohr; Beth F. Brittan-Powell; ENGINEER RESEARCH AND DEVELOPMENT CENTER CHAMPAIGN IL CONSTRUCTION ENGINEERING RESEARCH LAB
|
| It is estimated that nearly a quarter of the remaining Red-cockaded Woodpecker (RCW) population resides on 16 military installations in the southeastern United States. Such a close association has led to increased conflicts between TES conservation requirements and the military's mission of maintaining a high degree of combat readiness. Increased importance has been placed on determining how noise affects these species. The primary research objective of this multiyear study is ... |
|
| Kodiak Launch Complex, Alaska 2002 Environmental Monitoring Studies April QRLV-2 Launch |
JUL 2002 |
33 pages |
| Authors:
Sal V. Cuccarese; Daniel L. Bogan; Richard J. Hensel; Michael D. Kelly; John M. Kennish; ALASKA UNIV ANCHORAGE ENVIRONMENTAL AND NATURAL RESOURCES INST
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| This document provides the results of environmental monitoring studies done in support of the 24 April 2002 launch of the Quick Reaction Launch Vehicle (QRLV-2) from the Kodiak Launch Complex (KLC), Kodiak Island, Alaska. The University of Alaska Anchorage's Environment and Natural Resources Institute (ENRI) conducted the studies under contract to the Alaska Aerospace Development Corporation (AADC), which is a state-owned entity. An Environmental Monitoring Plan (EMP) was developed by ... |
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| Occupationally Acquired Hearing Loss Among Civilian and Active Duty Firefighters |
25 JUN 2002 |
33 pages |
| Authors:
Alden D. Hilton; AIR FORCE INST OF TECH WRIGHT-PATTERSONAFB OH
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| Fire fighters are routinely exposed to hazardous noise in excess of Occupational Health and Safety Administration (OSHA) recommendations. A study by Reischl (1979) demonstrated that fire fighters are routinely exposed to impulse noises in excess of 115 dBA, and the 8-hour Time Weighted Averages (TWA) were in excess of OSHA recommendations. Tubbs (1991) demonstrated that the average fire fighter exhibited a characteristic noise-induced permanent threshold shift (PTS) that was related ... |
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| Noise Levels in the Operating Room |
OCT 2001 |
57 pages |
| Authors:
Geoffrey A. Kuzmich; Mikel Phillips; Lisandra Rojas; UNIFORMED SERVICES UNIV OF THE HEALTH SCIENCES BETHESDA MD
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| Monitoring during anesthesia improves patient outcome by increasing the anesthesia provider's awareness of actual and potential problems. Lack of vigilance has been reported to be responsible for up to 30% of major problems occurring during anesthesia. Excessive noise in the environment is a factor that may decrease provider vigilance, and the Anesthesia Patient Safety Foundation has recently identified noise in the operating room (OR) as a major area of concern. ... |
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Noise Pollution and Control
