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Showing 1 to 20 of 23 for “"TCAS"”.

  1. Improving pilot understanding of TCAS through the traffic situation display

    Cleveland, William PeterGeorgia Institute of Technology2013

    … Traffic alert and Collision Avoidance System (TCAS) by changing the Traffic Situation Display (TSD). This is supported by two objectives. The first objective is to create an integrated, realistic air traffic environment. This serves as an experimental platform for testing and evaluating future …

    gatech Repository record

  2. Safety analysis of TCAS on Global Hawk using airspace encounter models

    Billingsley, Thomas B. (Thomas Boyd)Massachusetts Institute of Technology2006

    … Traffic Alert and Collision Avoidance System (TCAS) to reduce the probability of mid-air collision. Currently, Global Hawk is equipped with a Mode S transponder and uses chase aircraft, ground observers and/or ground radar contact to comply with the collision avoidance requirement. In order to …

    mit Repository record

  3. Incorporation of Traffic Collision Alert System (TCAS) Advisories on Heads-up Displays: Enhanced Pilot Response

    Nureddine, Hamadeh A.

    … evaluated the effects that heads-up mounted TCAS displays had on pilot response and workload. Pilot response was evaluated by: (a) response time to a traffic advisory, and (b) number of missed traffic alerts. Workload assessment was accomplished in accordance with NASA's Task Load Index …

    embry-riddle Repository record

  4. Exploring the Vulnerabilities of Traffic Collision Avoidance Systems (TCAS) Through Software Defined Radio (SDR) Exploitation

    Berges, Paul MartinVirginia Tech2019

    Traffic Collision Avoidance Systems (TCAS) are safety-critical systems that are deployed on most commercial aircraft in service today. However, TCAS transactions were not designed to account for malicious actors. While in the past it may have been infeasible for an attacker to craft arbitrary radio …

    vt Repository record

  5. Establishment of a Cyber-Physical Systems (CPS) Test Bed to Explore Traffic Collision Avoidance System (TCAS) Vulnerabilities to Cyber Attacks

    Graziano, Timothy MichaelVirginia Tech2021

    Traffic Collision Avoidance Systems (TCAS) are safety-critical, unauthenticated, ranging systems required in commercial aircraft. Previous work has proposed TCAS vulnerabilities to attacks from malicious actors with low cost software defined radios (SDR) and inexpensive open-source software (GNU …

    vt Repository record

  6. Collision avoidance system optimization for closely spaced parallel operations through surrogate modeling

    Smith, Kyle A. (Kyle Alexander)Massachusetts Institute of Technology2013

    The Traffic Alert and Collision Avoidance System (TCAS) is mandated worldwide to protect against aircraft mid-air collisions. One drawback of the current TCAS design is limited support for certain closely spaced parallel runway operations. TCAS alerts too frequently, leading pilots to often inhibit …

    mit Repository record

  7. Multi-objective optimization of next-generation aircraft collision avoidance software

    Lepird, John RMassachusetts Institute of Technology2015

    … Traffic Alert and Collision Avoidance System (TCAS) is the last safety net to prevent an aircraft mid-air collision. Although TCAS has been historically very effective, TCAS logic must adapt to meet the new challenges of our increasingly busy modern airspace. Numerous studies have shown that …

    mit Repository record

  8. Factors affecting use of sorbitol as a carbon source by exponentially growing Gluconobacter oxydans ATCC 19357

    Feshami, Barbara H.Virginia Polytechnic Institute and State University1983

    … the soluble low molecular weight metabolites (TCAs) and the insoluble polymers (TCAi). After 6 h (5 generations) of exponential growth at a rate of 0.094 mg dry cell weight (DCW)/ml/hr and an oxidation rate of 4.91 mg 51/ml/hr, 97% of the radioactivity remained in the growth medium as SL or SE. …

    vt Repository record

  9. Aircraft collision avoidance using Monte Carlo Real-Time Belief Space Search

    Wolf, Travis BenjaminMassachusetts Institute of Technology2009

    … the Trac Alert and Collision Avoidance System (TCAS) in simulated encounter scenarios. The simulations are generated using an encounter model formulated as a dynamic Bayesian network that is based on radar feeds covering U.S. airspace. MC-RTBSS leverages statistical information from the airspace …

    mit Repository record

  10. Impacto nutricional del cocinado y procesado industrial en alimentos, platos y menús, tras su valoración mediante análisis químico, programas informáticos y tablas de composición de alimentos

    Rivadeneyra Posadas, Jéssica Jannett2015

    … y seis tablas de composición de alimentos (TCAs) (CESNID, 2008; Mataix y col., 2011; Moreiras y col., 2013; Ortega y col., 2010; Senser y Scherz, 1999 y USDA, release 27) en diez menús escolares, siete alimentos/platos crudos, ocho alimentos/platos procesados industrialmente y ocho …

    burgos Repository record

  11. Air Surveillance for Smart Landing Facilities in the Small Aircraft Transportation System

    Shea, Eric JosephVirginia Tech2002

    … Traffic Alert and Collision Avoidance System (TCAS) when used as a ground sensor at SLFs and the design of a Position and Identification Reporting Beacon (PIRB). The use of the TCAS ground sensor is modeled in Matlab and the results of that model are discussed. The PIRB is a new system that can …

    vt Repository record

  12. Real-time probabilistic collision avoidance for autonomous vehicles, using order reductive conflict metrics

    Jones, Thomas, 1975-Massachusetts Institute of Technology2003

    … Traffic Alert and Collision Avoidance System (TCAS) have proven their effectiveness in the Commercial Aviation (CA) industry within the last decade. Yet, TCAS and many systems like it represent attempts at collision avoidance that do not fully recognize the uncertain nature of a conflict event. …

    mit Repository record

  13. Onboard Aircraft Traffic Tracking Algorithm to Support Conflict Detection and Resolution using Multi-sensor Data Integration and Integrity Monitoring

    Bezawada, RajeshOhio University2012

    … The Traffic Collision and Avoidance System (TCAS) II in an efficient manner and assesses the sensor consistency for integrity purposes.</p><p>Position and, in some configurations, velocity reports from various surveillance sensors and ownship information are used to form relative baseline …

    ohiolink Repository record

  14. Airborne collision avoidance in mixed equipage environments

    Asmar, Dylan M. (Dylan Mitchell)Massachusetts Institute of Technology2013

    … Traffic Alert and Collision Avoidance System (TCAS). To assess the performance of the system, this thesis uses U.S. airspace encounter models. The results indicate that the proposed methodology can bring significant benefit to the current airspace and can support the need for safe, …

    mit Repository record

  15. Factors That Influence Pilot Usage of Flight Following

    Bulger, Jody Barbara

    … Control or Multi-Engine aircraft, having ADS-B, TCAS, or a built in radio and purpose of flight.Using a qualitative method, this study also discovered categories or themes that emerged from pilot definitions of flight following and factors that influence pilot usage of flight following. The …

    nodak Repository record

  16. THE EFFCT OF LOW-LEVEL LEAD ON SEROTONIN EXPRESSION IN THE DEVELOPING MOUSE SUPERIOR OLIVARY COMPLEX AND SOMATOSENSORY CORTEX

    Park, Sunyoung

    … of 5-HT at the thalamocortical axon terminals (TCAs) in the region of the somatosensory cortical barrel field. In the forebrain, Pb appears to decrease 5-HT levels in general. This differs from its effect in the brainstem where Pb appears to specifically target central auditory nuclei.

    montana-tech Repository record

  17. THE EFFCT OF LOW-LEVEL LEAD ON SEROTONIN EXPRESSION IN THE DEVELOPING MOUSE SUPERIOR OLIVARY COMPLEX AND SOMATOSENSORY CORTEX

    Park, Sunyoung

    … of 5-HT at the thalamocortical axon terminals (TCAs) in the region of the somatosensory cortical barrel field. In the forebrain, Pb appears to decrease 5-HT levels in general. This differs from its effect in the brainstem where Pb appears to specifically target central auditory nuclei.

    montana Repository record

  18. Computational Ligand-Based CNS Therapeutic Design: The Search for Novel-Scaffold Norepinephrine Transporter Inhibitors

    Chaly, Anna2018

    … NRIs (norepinephrine reuptake inhibitors) and TCAs (tricyclic antidepressants), as well as psychostimulant drugs of abuse such as cocaine and the amphetamines. Due to a lack of crystallographic MAT data, it is unclear as to which of two MAT protein ligand binding sites these drugs bind, …

    duquesne Repository record

  19. Molecular-Genetic and Behavioral Analysis of the Functionality of Patterning in the Trigeminal Neuraxis

    Bakalar, DanaThe Graduate School and University Center of The City University of New York2016

    … BRL mouse, an Adenylyl Cyclase 1 mutant in which TCAs enter the cortex but do not cluster into barrels. Prior studies lesioning or chemically silencing barrel cortex suggests that vibrissal active sensing tasks such as texture discrimination are barrel-cortex dependent. However, these studies …

    cuny-grad Repository record

  20. Dissecting the Physiological Roles of ULK1/2 in the Mouse Brain

    Wang, Bo2017

    … axons (CTAs) and thalamocortical axons (TCAs) and mossy fibers. These defects led to impaired midline crossing of callosal axons, anterior commissure hypoplasia and disorganization of the somatosensory cortex. The axon guidance defects observed in Ulk1/2 double knockout (dko) and in …

    tenn-hsc Repository record

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