Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

2001

Discipline
Institution
Keyword
Publication
Publication Type
File Type

Articles 1411 - 1440 of 6953

Full-Text Articles in Entire DC Network

Elmendorf Afb Bash Program, Robert J. Hahn , Capt, Usaf Aug 2001

Elmendorf Afb Bash Program, Robert J. Hahn , Capt, Usaf

Bird Strike Committee-USA/Canada Joint Annual Meeting: 3rd (2001)

Elmendorf AFB, located in Anchorage, Alaska, is home to over 60 aircraft to include F-15s, C-130’s, E- 3’s, C-12s, and Army Citations. In addition, it’s a major hub for both military and contract strategic airlift enroute to the Pacific. The large airspace training areas make Alaska an ideal environment suitable for large scale flying exercises. The result is several different types of aircraft from military sister services and foreign countries based out of Elmendorf throughout the year. Overlay the tremendous volume of air traffic on the huge numbers of birds in a confined area and your bound to have collision …


Counting Bird Strikes: Old Science Or New Math?, Gary F. Searing Aug 2001

Counting Bird Strikes: Old Science Or New Math?, Gary F. Searing

Bird Strike Committee-USA/Canada Joint Annual Meeting: 3rd (2001)

Airports use bird strike statistics to determine whether or not their bird control programs are necessary and effective. For example, each year Transport Canada publishes the number of bird strikes at Canadian airports and analyzes data from airports with the most strikes. While we often relate the number of strikes to the number of aircraft movements, we seldom relate the number of strikes to the hazardous species of birds. Richard Dolbeer and his co-authors (2000) ranked species according to their hazards to aviation based on the risk of damage or effect on flight they pose. I present a method for …


Factors Influencing The Incidence Of Bird-Strikes At Melbourne Airport, 1986-2000, W. K. Steele Aug 2001

Factors Influencing The Incidence Of Bird-Strikes At Melbourne Airport, 1986-2000, W. K. Steele

Bird Strike Committee-USA/Canada Joint Annual Meeting: 3rd (2001)

The results of 149 surveys of bird species’ distribution and abundance at Melbourne Airport between January 1997 and June 2000, together with local weather information and bird-strike data were used to assess the comparative importance of a number of variables affecting the incidence of bird-strikes at the airport. At least 36 bird and bat species were involved in ‘bird-strikes’ at Melbourne Airport between 1986 and 2000, although only 11 species were involved in 10 or more incidents. The Australian Magpie (Gymnorhina tibicen) presents the greatest threat of bird-strikes at Melbourne. Bird abundance and activity are important factors in determining the …


The Costs Of Birdstrikes To Commercial Aviation, John R. Allan, Alex P. Orosz Aug 2001

The Costs Of Birdstrikes To Commercial Aviation, John R. Allan, Alex P. Orosz

Bird Strike Committee-USA/Canada Joint Annual Meeting: 3rd (2001)

Collisions between birds (and other wildlife) and aircraft are known to cause substantial losses to the aviation industry in terms of damage and delays every year. Techniques exist to control bird numbers on airfields and hence to reduce the numbers of wildlife strikes but they are applied at widely different levels from airport to airport. Some of this variation may be due to differing levels of strike risk at the different sites, but much of it is due to the unwillingness or inability of the airports concerned to invest in birdstrike prevention. Part of the reason for this reluctance to …


The Need For A Radar-Based, Operational Bird Warning System For Civil Aviation, Hans Blokpoel, B. Mackinnon Aug 2001

The Need For A Radar-Based, Operational Bird Warning System For Civil Aviation, Hans Blokpoel, B. Mackinnon

Bird Strike Committee-USA/Canada Joint Annual Meeting: 3rd (2001)

Serious multi-engine strikes on civil aviation aircraft continue to occur despite bird control efforts at and around airports. Radar-based bird warning systems currently used in military aviation are largely unsuitable for operational use in civil aviation because of the considerable constraints and inflexibility inherent in civil aviation operations. Pilots of civil aviation aircraft need to get timely, pertinent information on bird hazards, complete with options on how to minimize the associated risk. Recent advances in the design of radars and computers allow for the development of a real-time radar-based system to detect and warn of high-risk situations involving birds. High-risk …


U.S. Fish And Wildlife Migratory Bird Permits And Airports, Marlys J. Bulander Aug 2001

U.S. Fish And Wildlife Migratory Bird Permits And Airports, Marlys J. Bulander

Bird Strike Committee-USA/Canada Joint Annual Meeting: 3rd (2001)

The Migratory Bird Treaty Act (MBTA) protects over 800 species of migratory birds, their nests and eggs. The U.S. Fish and Wildlife Service (Service) has been mandated by this Act to provide this protection and to facilitate exceptions to the prohibitions of the Act by issuing permits for specific and justifiable activies involving migratory birds. Regulations covering permits can be found in the Code of Federal Regulations (CFR), Part 50. 50 CFR 10 will provide you with definitions and a list of all birds protected under the Act, 50 CFR 13 provides information on applying, renewing, amending, etc., and 50 …


All Birds Are Not Created Equal: Risk Assessment And Prioritization Of Wildlife Hazards At Airfields, Nicholas B. Carter Aug 2001

All Birds Are Not Created Equal: Risk Assessment And Prioritization Of Wildlife Hazards At Airfields, Nicholas B. Carter

Bird Strike Committee-USA/Canada Joint Annual Meeting: 3rd (2001)

In order to most effectively control wildlife at an airfield, airport managers must first identify and prioritize the hazards posed by the different species present in their environment. A formula including ten primary risk factors is presented in order to determine the relative threat posed by individual species or groups of similar species. The ten primary risk factors are:
1) The overall population of the wildlife species (in total number of individuals)
2) The size (mass and surface area) of an individual animal within the species
3) The average number of animals encountered (i.e. average group size)
4) The amount …


Let No New Thing Arise: Wildlife Hazards To Aviation, Paul Eschenfelder (Capt.) Aug 2001

Let No New Thing Arise: Wildlife Hazards To Aviation, Paul Eschenfelder (Capt.)

Bird Strike Committee-USA/Canada Joint Annual Meeting: 3rd (2001)

Aviation today faces another, new, thing: wildlife hazards. Since 1995 we have, worldwide, over 90 people dead from collisions between their aircraft and wildlife. It is truly a worldwide problem: the General of the Air Force in India worries about elephants on his runways; flamingos cause engine failure on a wide body aircraft in Kenya; Lan Chile has 2 B767s with destroyed engines in one week in Santiago due to bird ingestion; the Israeli Air Force has lost more aircraft to bird strikes than to air-air combat; an Air Ontario twin turboprop has both props shattered at Toronto City after …


Avian Foraging Behaviors And Habitat Manipulation At Portland International Airport, Janina M. Lamb Aug 2001

Avian Foraging Behaviors And Habitat Manipulation At Portland International Airport, Janina M. Lamb

Bird Strike Committee-USA/Canada Joint Annual Meeting: 3rd (2001)

Between January 1996 and May 2001 more than 300 bird strikes occurred at Portland International Airport. Records indicate that herons and raptors consistently make up nearly one-half of species struck. These species regularly use the airport grassland as a foraging ground, feeding on ground-dwelling rodents, including the graytailed vole (Microtus canicaudus) and vagrant shrew (Sorex vagrans). As part of a current study, various manipulations are being made to the grassland habitat and an assessment will be conducted of their effects on the airfield rodent and avian predator populations. This study will specifically correlate the presence and behaviors of predatory birds …


Birds And Flight Safety Awareness In The Middle East And Africa – A Test Case, Yossi Leshem, Eli Sheirmeister (Col.) Aug 2001

Birds And Flight Safety Awareness In The Middle East And Africa – A Test Case, Yossi Leshem, Eli Sheirmeister (Col.)

Bird Strike Committee-USA/Canada Joint Annual Meeting: 3rd (2001)

In order to significantly and effectively advance the issues of flight safety and the conflict with birds we believe that we must work simultaneously on five levels:
· The experimental-research level- to provide a solid scientific basis for the actions taken.
· The application level -To assimilate and apply the conclusions of the basic research in daily actions (the yearly activity both at the CTR and throughout the entire airspace).
· The building of data bases and continuous analysis of the effectiveness of actions taken as well as analysis of changing population sizes over time.
· Continuous development of new …


Damage Liability And Compensation In Case Of Bird Strike, Ante Matijaca Aug 2001

Damage Liability And Compensation In Case Of Bird Strike, Ante Matijaca

Bird Strike Committee-USA/Canada Joint Annual Meeting: 3rd (2001)

Most frequently, a bird strike cause damage to aircraft, and, in certain number of cases, a bird strike may have some considerably serious consequences (injuries and death of passengers, crew or third persons on a ground). In the circumstances of damage occurred, one side is entitled to demand a repair or a financial compensation, and the other side is obliged to realise the repair or the payment of the stated sum. The right to file a demand for repair or compensation depends on the result of determination of someone’s liability. In case of bird strike (either with Croatian or foreign …


German Bird Strike Statistics, Christoph Morgenroth-Branczyk Aug 2001

German Bird Strike Statistics, Christoph Morgenroth-Branczyk

Bird Strike Committee-USA/Canada Joint Annual Meeting: 3rd (2001)

Since 1998 the DAVVL has been the official collecting centre for bird strike reports in Germany. Thanks to the voluntary supply of reports from airlines the DAVVL had been collecting reliable data even for many more years even before 1998. The typical annual variations of the bird strike development are well known. In 1999 and 2000 there were distinct deviations from the usual annual variations of the reports. The reasons are investigated and presented. It might be concluded that in 1999 reporting problems of a prominent German airline were the reason of the anomalous trend. In 2000 the weather development …


Bird Deterrence At Low Level Windshear Alert System (Llwas) Poles, Jerry Schwartz, Tom Kays Aug 2001

Bird Deterrence At Low Level Windshear Alert System (Llwas) Poles, Jerry Schwartz, Tom Kays

Bird Strike Committee-USA/Canada Joint Annual Meeting: 3rd (2001)

Perching birds cause interference with data flow from the sensors used in a new version of Low Level Windshear Alert System (LLWAS). LLWAS is a US Federal Aviation Administration (FAA) airport, weather safety program consisting of a network of anemometers on top of tall poles used for detecting wind shear. Deadly wind shear has caused aircraft accidents with fatalities by creating a sudden loss of airspeed at low altitude upon take-off or landing. During installation of the LLWAS’s initial site at Fort Myers, FL, Turkey Vultures and Black Vultures were observed to perch on the arms of the sonic wind …


Equipment For Fogging Of Rejex-It® Tp-40., Peter F. Vogt Aug 2001

Equipment For Fogging Of Rejex-It® Tp-40., Peter F. Vogt

Bird Strike Committee-USA/Canada Joint Annual Meeting: 3rd (2001)

Considerable improvements have been made in the fogging application of Rejex-it® TP-40. Much has been learned about the type of fog generated by these machines and the resulting efficiency. Many foggers have been proven to deliver the product in the desired form, while others were only useful under special conditions, but no single piece of equipment is suitable for all situations. Generally, thermal foggers (e.g., Golden Eagle) produce the best fog with a good droplet size in areas where they can be employed. Their drawback for many operations by a trained technician is the noise they generate and the open …


An Analysis Of Deer Strikes With Civil Aircraft, Usa, 1982-2000, Sandra E. Wright Aug 2001

An Analysis Of Deer Strikes With Civil Aircraft, Usa, 1982-2000, Sandra E. Wright

Bird Strike Committee-USA/Canada Joint Annual Meeting: 3rd (2001)

Wright et al. (1988) stated that although deer strikes comprise only about 2% of total reported wildlife strikes, 86% of those strikes damaged the aircraft. Dolbeer et al. (2000) ranked deer as the most hazardous species to aircraft based on damage and effect-on-flight. On January 14, 2001, a Learjet collided with two white-tailed deer (Odocoileus virginianus) on an airport in Troy, Alabama. Both pilots were critically injured and would have perished in the fire that destroyed the aircraft if rescuers had not arrived quickly. The above example of a damaging wildlife strike to an aircraft is not uncommon. Wildlife strikes …


Successful Actions For Avian Hazard Control In Brazil, Luiz Cláudio Magalhães Bastos (Maj.) Aug 2001

Successful Actions For Avian Hazard Control In Brazil, Luiz Cláudio Magalhães Bastos (Maj.)

Bird Strike Committee-USA/Canada Joint Annual Meeting: 3rd (2001)

Brazil built one of the world’s largest aeronautical infrastructure. The airport net is distributed along its vast territory, which shows a tremendous ecosystem variety. Having a large civilian aircraft fleet and also running second after Venezuela in catalogued bird species, Brazil has had problems related to bird strikes. Although Brazil has little problem with migratory birds, the threat posed by residents birds in some airports represents a risk to be managed. On the other hand, due to human population growth and poor policies of garbage disposal in the past, nowadays some big airports have in their vicinities open dumps that …


Enhancements To The United States Bird Avoidance Model (Us Bam), Timothy Beermann, Matthew Bobo, Russell P. Defusco Aug 2001

Enhancements To The United States Bird Avoidance Model (Us Bam), Timothy Beermann, Matthew Bobo, Russell P. Defusco

Bird Strike Committee-USA/Canada Joint Annual Meeting: 3rd (2001)

The United States Bird Avoidance Model (US BAM) uses Geographic Information System (GIS) technology to analyze and correlate bird habitat, migration, and breeding characteristics with key environmental and human-made geospatial features. The application consists of raster grids covering the conterminous United States. The value for each grid pixel location is equivalent to the sum of the mean bird mass (in ounces) for all species present during one of four daily time periods (dawn, day, dusk, and night), for one of 26 two-week periods in a year. The US BAM is a desktop application that has an intuitive design and includes …


A Review Of Deer Control Devices Intended For Use On Airports, Thomas W. Seamans Aug 2001

A Review Of Deer Control Devices Intended For Use On Airports, Thomas W. Seamans

Bird Strike Committee-USA/Canada Joint Annual Meeting: 3rd (2001)

Deer living on airport habitats pose a direct threat to aircraft operations and to public safety. From 1990– 2000, about 520 collisions between civil aircraft and deer were reported in the USA with damage occurring in 86% of the collisions. Removal of individual deer by lethal or non-lethal means can reduce the potential for deer-aircraft collisions; however, such action is often controversial. Various items are marketed to keep deer away from airports, crops or residential areas. Some items have been tested while others have unsubstantiated claims of efficacy. This paper reviews the use of various fence designs, propane cannons, cattle …


A Revolution In Wildlife Management, Greg Winfield Aug 2001

A Revolution In Wildlife Management, Greg Winfield

Bird Strike Committee-USA/Canada Joint Annual Meeting: 3rd (2001)

At past Bird Strike Conferences, the need for having a good database to track and analyze wildlife activities has been expressed. Sadly, most airports/wildlife contractors still depend on archaic log sheets. At best, some have tapped into the limited capability of spreadsheets. Limiting yourself to this method severely restricts your abilities to track activities effectively. And if the data isn’t available then you cannot make informed decisions. Toronto’s Pearson International Airport’s Field Superintendent John Meehan put it best by saying… “I cannot imagine any airport trying to oversee wildlife initiatives without an effective data analysis tool…it would be meaningless…”. If …


Fortnightly - August 27, 2001 Aug 2001

Fortnightly - August 27, 2001

Fortnightly

No abstract provided.


August 27, 2001 Reporter, University Of Alabama At Birmingham Aug 2001

August 27, 2001 Reporter, University Of Alabama At Birmingham

eReporter (campus newsletter)

No abstract provided.


Grand Valley Forum, Volume 026, Number 04, August 27, 2001, Grand Valley State University Aug 2001

Grand Valley Forum, Volume 026, Number 04, August 27, 2001, Grand Valley State University

2001-2002, Volume 26

Grand Valley Forum is Grand Valley State's faculty and staff newsletter, published from 1976 to the present.


The Bg News August 27, 2001, Bowling Green State University Aug 2001

The Bg News August 27, 2001, Bowling Green State University

BG News (Student Newspaper)

The BGSU campus student newspaper. August 27, 2001. Volume 88-Issue 2.


Seven Steps Toward The Classical World: The Problem Of The Classical Limit In Quantum Mechanics, Valia Allori Aug 2001

Seven Steps Toward The Classical World: The Problem Of The Classical Limit In Quantum Mechanics, Valia Allori

Faculty Articles, Papers, and Other Scholarship

No abstract provided.


Airglow Variations Associated With Nonideal Ducting Of Gravity Waves In The Lower Thermosphere Region, Michael P. Hickey Ph.D. Aug 2001

Airglow Variations Associated With Nonideal Ducting Of Gravity Waves In The Lower Thermosphere Region, Michael P. Hickey Ph.D.

Publications

A numerical full-wave model is used to study the response of the O2 atmospheric airglow to ducted gravity waves in the mesopause region. For an isothermal, quasi-adiabatic, and motionless background atmosphere the calculated phase differences between airglow brightness fluctuations and fluctuations of temperatures derived from the airglow, as given by Krassovsky's ratio, are in good agreement with the predictions of published theory. Significant departures from the predictions of the basic theory are obtained when we consider ducting in the presence of the eddy and molecular diffusion of heat and momentum in a nonisothermal background atmosphere. Wind shears also affect the …


Fogging Of Rejex-It® Tp-40. Effectiveness As A Function Of Droplet Size To Repel Birds, Peter F. Vogt Aug 2001

Fogging Of Rejex-It® Tp-40. Effectiveness As A Function Of Droplet Size To Repel Birds, Peter F. Vogt

Bird Strike Committee-USA/Canada Joint Annual Meeting: 3rd (2001)

Fogging of Rejex-it® TP-40 (Fog Force) offers a very efficient method for the management of nuisance birds in many diverse areas without any adverse effects to non-target animals. Despite its effectiveness, there are many factors that influence the effectiveness and desired results. The product alone does not guarantee the desired success. It is not always the quantity that determines fast reaction, but more the form for the specific application. Smaller droplets in the 10-micron range are theoretically 27 times more effective than 30 micron droplets and five micron droplets even 216 times more effective for the same quantity of product …


Globalization, Consumers, Citizens, And The "Private School Advantage" In Argentina (1985-1999), Gustavo E. Fischman Aug 2001

Globalization, Consumers, Citizens, And The "Private School Advantage" In Argentina (1985-1999), Gustavo E. Fischman

Education Policy Analysis Archives (EPAA)

Local actors' perceptions of curricular and management changes in two private schools and one neighboring public secondary school in the city of Buenos Aires, Argentina, are analyzed. An exploration was conducted of how, within an ideologically and politically pro-reform context and a widespread acceptance of the "private school advantage," principals, teachers, and students in these schools evaluated the changes (or lack of them) in management, teaching, and curriculum orientations of the secondary education sector.


Education Policy Analysis Archives 09/31 , Arizona State University, University Of South Florida Aug 2001

Education Policy Analysis Archives 09/31 , Arizona State University, University Of South Florida

College of Education Publications

Globalization, consumer, citizens, and the "private school advantage" in Argentina (1985-1999) / Gustavo E. Fischman.


We Are…Marshall, August 24, 2001, Office Of Marshall University Communications Aug 2001

We Are…Marshall, August 24, 2001, Office Of Marshall University Communications

We Are ... Marshall: the Newsletter for Marshall University 1999-2023

No abstract provided.


Volume 38, Number 45: August 24, 2001, University Of North Dakota Aug 2001

Volume 38, Number 45: August 24, 2001, University Of North Dakota

University Letter Archive

No abstract provided.