Digital Commons Network^™

Developing A Risk Rating System For Bird Strike Occurrences, Albert Froneman

Bird Strike Committee-USA/Canada Joint Annual Meeting: 8th (2006)

Bird strike reporting is becoming increasingly important as airport operators, airlines and government aviation authorities are requesting their staff to report all bird strike occurrences. In South Africa the Endangered Wildlife Trust has been managing an integrated bird and wildlife hazard management program at ten airports managed by the Airports Company South Africa for the past seven years. In an attempt to best understand the bird strike hazard at the various airports a bird strike definition has been adopted which includes the reporting of carcass remain retrieved from the runways through to the more serious incidents where damage was reported …

Bird Classification In Noisy Environments: Theory, Results And Comparative Studies, Y. Zhang, C. Kwan, D. Lao, Y. Deng

Bird Strike Committee-USA/Canada Joint Annual Meeting: 8th (2006)

Bird classification plays an important role in minimizing collisions between birds and aircraft. It is a challenging task to perform the sound-based classification correctly in a noisy environment. This paper addresses robust techniques that can improve the classification of bird in noisy environments. A complete recognition system is described and evaluated on a bird sound database containing 1547 bird sound files, with 11 bird species. Two types of features were extracted from the sound files: Mel Frequency Cepstral Coefficient (Mfcc) and RelAtive SpecTrAl (RASTA). Also, two statistical classifiers were developed using Gaussian Mixture Models (GMM) and Hidden Markov Models (HMM), …

Laryngeal-Level Amplitude Modulation In Vibrato, Lorie C. Reese

Theses and Dissertations

Research in vocal vibrato has established that vocal tract filtering is primarily responsible for the amplitude modulation (AM) present in Western classical vibrato. Using electroglottography (EGG) and the EGG speed quotient, which is sensitive to fluctuations in the amplitude of vocal fold vibration, AM was detected at the laryngeal (source) level, in addition to the subsequent AM which results from vocal tract filtering. Seventeen classically-trained opera singers sang vowels in three pitch and loudness conditions. EGG and microphone measurements of FM and AM and their rates, extents, and periodicity were made. Airflow was also measured, and the samples were rated …

Reduction Of Risk: A Flight Crew Guide To The Avoidance And Mitigation Of Wildlife Strikes To Aircraft, Paul Eschenfelder, Steve Hull

Bird Strike Committee-USA/Canada Joint Annual Meeting: 8th (2006)

Each year the world’s airlines lose between $1 billion to $2 billion due to wildlife strikes to aircraft. This is roughly the same level of loss as the carriers pay out each year for lost luggage. One US airline cites its losses at $2 million a month due to engine ingestion alone. The last several years have seen both hull losses to air carrier aircraft and lesser damage caused by such actions as loss of control and runway excursions. Wildlife strike mitigation is a defense in depth: airplane certification/construction standards; action by airport operators to minimize wildlife on and around …

Developing Protocols For Bird Strike Radar Performance Assessment, Edwin E. Herricks

Bird Strike Committee-USA/Canada Joint Annual Meeting: 8th (2006)

Over the past six years the Center of Excellence in Airport Technology (CEAT) has been supporting Federal Aviation Administration research in aircraft and airport safety. CEAT has conducted reviews of bird strike sensor technology, and has led validation testing of a radar developed specifically for bird detection at airports. This experience, which includes development of quality assurance plans and field validation of radar capabilities has led to the development of protocols for bird strike radar performance assessment. The protocols to be reviewed are based on a request made to bird radar vendors that asked for information in three areas: 1) …

Cattle Grazing As Part Of An Integrated Management Program To Reduce Wildlife Hazards At Kansas City International Airport, Dan Mcmurtry

Bird Strike Committee-USA/Canada Joint Annual Meeting: 8th (2006)

Opening in 1972, the Kansas City International Airport (MCI) has had numerous issues concerning white-tailed deer. The first documented deer strikes at MCI were in 1979 and 1980. Between 1996 and 2000, airport operations entered 39 reports of deer inside the fence on the AOA, or 0.72 deer incursions per month, and 28 instances where deer were struck by vehicles on airport property. In one situation, a deer entered the airport terminal by breaking through a large glass window and injured three people. After a Wildlife Hazard Assessment was completed in 1997, Wildlife Services and MCI worked together closely to …

Bird Use Of Stormwater Management Ponds: Design Considerations Relative To Decreasing Strikes With Aircraft, Bradley F. Blackwell, Laurence M. Schafer

Bird Strike Committee-USA/Canada Joint Annual Meeting: 8th (2006)

Airports must control the movement of storm water away from runways, taxiways, and aprons to insure the safety of aircraft operations. The U.S. Federal Aviation Administration recommends that such runoff be held for short periods, by use of detention ponds, so as to reduce use by wildlife (Advisory Circular No: 150/5200-33A; Hazardous Wildlife Attractants On or Near Airports). The purpose of our study was to quantify factors that potentially attract avian wildlife to stormwater management ponds so as to more efficiently direct resources toward management of hazards to aviation posed by these habitats, and provide critical input on the design …

Employing Bash At Westover Air Reserve Base, Massachusetts, Major Gary Cooke

Bird Strike Committee-USA/Canada Joint Annual Meeting: 8th (2006)

Westover Air Reserve Base (ARB) in western Massachusetts is home to 17 USAF C-5A Galaxy airlifters. The mammoth C-5, with a 222 foot wingspan and length of 247 feet, is the backbone of the U.S. Air Force airlift fleet. The 2,500-acre base is home to the largest single area of grassland in Massachusetts. The BASH program at Westover focuses mainly on the wildlife risk posed to the C-5, and is administered by the 439th Airlift Wing safety office. Airfield grasslands are host to two state-listed endangered/threatened bird species: the Grasshopper Sparrow and the Upland Sandpiper. To protect our airplanes from …

Real Birds Versus Whirly Birds: Bird Strikes To Civil Helicopters In The Usa, 1990-2005, Richard A. Dolbeer, Sandra E. Wright, Edward C. Cleary

Bird Strike Committee-USA/Canada Joint Annual Meeting: 8th (2006)

To our knowledge, there has been no published analysis of bird strike data specific to helicopters. Our objective was to conduct a comparative analysis of strike reports involving helicopters and fixed-wing aircraft from the Federal Aviation Administration’s Wildlife Strike Database. From 1990-2005, 370 (0.6%) of the 64,734 reported bird strikes to civil aircraft involved helicopters. Of the 370 reported bird strikes involving helicopters, 186 (50%) indicated damage and 67 (18%) indicated substantial damage. In contrast, only 15% of bird strikes with fixed-wing aircraft resulted in damage and 4% resulted in substantial damage. Whereas helicopters accounted for only 0.6% of all …

The Vectorial 3d Bird Flight Monitoring System: A New Tool To Track And Manage Birds On Airports, Raoul Tomassi

Bird Strike Committee-USA/Canada Joint Annual Meeting: 8th (2006)

Among the many sensors available to detect and track bird movement on airports, few provide a satisfactory capacity to both monitor bird flight and the capability to rapidly review, update, and improve monitoring capabilities. The Vectorial Three Dimension Bird Flight (V3DBF) Monitoring System has been developed to provide detection and analysis of bird movement using digital images and advanced image analysis technology. The sensor system is capable of identifying bird targets and using geometric relationships between sensors and the targets to identify the range and altitude of birds. The rapid refresh rate of the system allows horizontal and vertical tracking …

Sex, Trust, And Corporate Boards, Joan M. Heminway

ExpressO

This essay collects and interprets social science research on sex and trust and uses this work to shed new light on the emerging case for gender diversity on corporate boards. Specifically, the essay describes research findings that indicate (1) that men and women trust and are trustworthy on different bases and (2) the existence of a bias against women in corporate leadership positions. Based on this research and current legal scholarship on corporate governance, the essay asserts that gender diversity on corporate boards may be desirable but difficult to attain. The essay also calls for more targeted research on the …

In Sickness, Health, And Cyberspace: Protecting The Security Of Electronic Private Health Information, Sharona Hoffman, Andy Podgurski

ExpressO

The electronic processing of health information provides considerable benefits to patients and health care providers at the same time that it creates serious risks to the confidentiality, integrity, and availability of the data. The Internet provides a conduit for rapid and uncontrolled dispersion and trafficking of illicitly-obtained private health information, with far-reaching consequences to the unsuspecting victims. In order to address such threats to electronic private health information, the U.S. Department of Health and Human Services enacted the HIPAA Security Rule, which thus far has received little attention in the legal literature. This article presents a critique of the Security …

Evaluating The Wto's Two Step Test For Environmental Measures Under Article Xx, Nita Ghei

ExpressO

There has been considerable dissatisfaction expressed by both free trade proponents and environment activists with respect to the WTO’s exercise of authority on the impact of environmental measures on international trade. The Article first sets out a analytical framework, based on public choice theory, which examines the incentives to implement measures to achieve environmental goals which function effectively as disguised barriers to trade. This is followed by a careful examination of the WTO’s jurisprudence in the area, which suggests that the WTO’s focus on the measure being implemented is correct. Furthermore, the two step test under Article XX, as conceived …

Multistable Figures: Sexual Orientation Visibility And Its Effects On The Experiences Of Sexual Minorities In The Courts, Todd Brower

ExpressO

A multistable figure is a cognitive illusion in which a single drawing contains multiple, competing images. On first viewing a person will see one image, but not the other – it usually requires additional information to trigger the viewer’s awareness of the second image. However, once you know about the disparate figures in the illustration, you cannot erase that knowledge from your mind and see a sole image as you did originally. This inability to ignore information and its effect on subsequent experience has parallels in lesbians’ and gay men’s treatment in the courts.

Courts today are deeply involved in …

Characterization Of Alternative Cytosolic Forms And Cellular Targets Of Mouse Mitochondrial Thioredoxin Reductase, Anton A. Turanov, Dan Su, Vadim N. Gladyshev

Vadim Gladyshev Publications

Thioredoxin reductase (TR) and thioredoxin (Trx) define a major cellular redox system that maintains cysteine residues in numerous proteins in the reduced state. Both cytosolic (TR1 and Trx1) and mitochondrial (TR3 and Trx2) enzymes are essential in mammals, but the function of the mitochondrial system is less understood. In this study, we characterized subcellular localization of three TR3 forms that are generated by alternative first exon splicing and that differ in their N-terminal sequences. Only one of these forms resides in mitochondria, whereas the two other isoforms are cytosolic. Consistent with this finding, TR3 did not have catalytic preferences for …

Paraguay And Argentina Meet About Yacyreta Dam, Ladb Staff

NotiSur

No abstract provided.

Raises Boost Morale, Living Standards For Um Employees, Help Recruit, Retain Faculty, Staff, Barbara Lago, Jennifer Farish

University of Mississippi News

OXFORD, Miss. - Corrie Jean Free is looking forward to having a little extra money to pay for things that come with having a senior in high school and a parent in a nursing home.

University Of Nebraska At Omaha, August Commencement 2006, University Of Nebraska At Omaha

Commencement Programs

No abstract provided.

No Prosecution For London Police After Brazilian's Death, Ladb Staff

NotiSur

No abstract provided.

Advanced Life Support Baseline Values And Assumptions Document, Anthony J. Hanford

Technical Reports

No abstract provided.

Washington University Record, August 11, 2006

Washington University Record

No abstract provided.

Murray Ledger And Times, August 11, 2006, Murray Ledger And Times

The Murray Ledger & Times

No abstract provided.

Why Don’T More Public Schools Teach Sex Education? A Constitutional Explanation And Critique, Jesse R. Merriam

ExpressO

This Article questions why so many public schools do not teach any form of sex education. The answer proposed in this Article is that the U.S. Constitution is a part of the problem. This claim is based on the following two premises: (1) the U.S. Constitution certainly does not require public schools to teach sex education; and (2) the U.S. Constitution arguably requires public schools that teach sex education to exempt those students whose religious beliefs are substantially burdened by sex education.

To illustrate how these two premises might weigh in a school district’s decision not to teach sex education, …

Bayesian Smoothing Of Irregularly-Spaced Data Using Fourier Basis Functions, Christopher J. Paciorek

Harvard University Biostatistics Working Paper Series

No abstract provided.

Honduran Presidency Unraveling, Mike Leffert

NotiCen

No abstract provided.

Schwebel Wins Routh Early Career Award, Staff

Browse All News

No abstract provided.

New Hampshire Exporters Cashing In On Undervalued U.S. Dollar, Lori Wright

Media Relations

No abstract provided.

The Weekly Challenger, August 10, 2006, The Weekly Challenger, Et Al

Weekly Challenger Newspaper Collection

The August 10, 2006, issue of The Weekly Challenger.

Meeting Notes 2006-08-10 , Joint Policy Advisory Committee On Transportation

Joint Policy Advisory Committee on Transportation

No abstract provided.

Volume 43, Number 61: August 10, 2006, University Of North Dakota

University Letter Archive

No abstract provided.