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  1. COUR - Coursera, Inc.

    Yahoo Finance

    7.69-0.16 (-2.04%)

    at Fri, May 24, 2024, 4:00PM EDT - U.S. markets closed

    Nasdaq Real Time Price

    • Open 7.85
    • High 7.92
    • Low 7.66
    • Prev. Close 7.85
    • 52 Wk. High 21.26
    • 52 Wk. Low 7.66
    • P/E N/A
    • Mkt. Cap 1.2B
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  3. CBRN defense - Wikipedia

    en.wikipedia.org/wiki/CBRN_defense

    CBRN defense consists of CBRN passive protection, contamination avoidance, and weapons of mass destruction mitigation. A CBRN incident differs from a hazardous material incident in both scope (i.e., CBRN can be a mass casualty situation) and intent.

  4. United States Army Combat Readiness Center - Wikipedia

    en.wikipedia.org/wiki/United_States_Army_Combat...

    The U.S. Army Combat Readiness Center has many tools and programs to help leaders, battle buddies and Family members identify risky behaviors, provide solutions and help prevent needless accidents both on and off duty.

  5. Survival, Evasion, Resistance and Escape - Wikipedia

    en.wikipedia.org/wiki/Survival,_Evasion...

    Level C training focuses on resistance to exploitation and interrogation, survival during isolation and captivity, and escape from hostiles (e.g., "prison camps"). "Escape Training" has elements similar to evasion and resistance training – if details are revealed, it potentially helps adversaries.

  6. Sapper Leader Course - Wikipedia

    en.wikipedia.org/wiki/Sapper_Leader_Course

    The Sapper Leader Course is a 28-day United States Army small unit tactics and leadership course that develops soldiers in critical skills and teaches advanced combat engineer techniques needed across the Army. [1] Sapper training began development in 1982, and continued until 1985.

  7. Mid-air collision - Wikipedia

    en.wikipedia.org/wiki/Mid-air_collision

    2002 Überlingen mid-air collision. In aviation, a mid-air collision is an accident in which two or more aircraft come into unplanned contact during flight. [1] Owing to the relatively high velocities involved and the likelihood of subsequent impact with the ground or sea, very severe damage or the total destruction of at least one of the ...

  8. Kavach (train protection system) - Wikipedia

    en.wikipedia.org/wiki/Kavach_(train_protection...

    Initial development of Kavach started in 2012 under the name Train Collision Avoidance System (TCAS) and completed development in 2022. Kavach has been certified for compliance with safety integrity level 4 (SIL-4) operations.

  9. Airborne collision avoidance system - Wikipedia

    en.wikipedia.org/wiki/Airborne_collision...

    An airborne collision avoidance system ( ACAS, usually pronounced as ay-kas) operates independently of ground-based equipment and air traffic control in warning pilots of the presence of other aircraft that may present a threat of collision. If the risk of collision is imminent, the system recommends a maneuver that will reduce the risk of ...

  10. Traffic collision avoidance system - Wikipedia

    en.wikipedia.org/wiki/Traffic_collision...

    A traffic alert and collision avoidance system ( TCAS, pronounced / tiːkæs /; TEE-kas ), is an aircraft collision avoidance system designed to reduce the incidence of mid-air collision (MAC) between aircraft. It monitors the airspace around an aircraft for other aircraft equipped with a corresponding active transponder, independent of air ...

  11. Collision avoidance system - Wikipedia

    en.wikipedia.org/wiki/Collision_avoidance_system

    A collision avoidance system (CAS), also known as a pre-crash system, forward collision warning system (FCW), or collision mitigation system, is an advanced driver-assistance system designed to prevent or reduce the severity of a collision.

  12. Collision avoidance in transportation - Wikipedia

    en.wikipedia.org/wiki/Collision_avoidance_in...

    In transportation, collision avoidance is the maintenance of systems and practices designed to prevent vehicles (such as aircraft, motor vehicles, ships, cranes and trains) from colliding with each other. Examples include: Airborne collision avoidance systems for aircraft; Automatic Identification System for collision avoidance in water transport