active barrier

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• Barrier option — In finance, a barrier option is a type of financial option where the option to exercise depends on the underlying crossing or reaching a given barrier level . Barrier options were created to provide the insurance value of an option without… …   Wikipedia

• Active safety — In engineering, active safety systems are systems which can be activated in response to a safety problem or abnormal event. Such systems could be activated either by a human operator, automatically by a computer driven system, or even… …   Wikipedia

• Blood-brain barrier — The blood brain barrier (BBB) is a metabolic or cellular structure in the central nervous system (CNS) that restricts the passage of various chemical substances and microscopic objects (e.g. bacteria) between the bloodstream and the neural tissue …   Wikipedia

• Israeli West Bank barrier — The Israeli West Bank barrier is a barrier being constructed by Israel consisting of a network of fences with vehicle barrier trenches surrounded by an on average 60 meters wide exclusion area (90%) and up to 8 meters high concrete walls… …   Wikipedia

• Thermal barrier coating — Thermal barrier coatings are highly advanced material systems applied to metallic surfaces, such as gas turbine or aero engine parts, operating at elevated temperatures. These coatings serve to insulate metallic components from large and… …   Wikipedia

• Pneumatic barrier — A pneumatic barrier is a method of containing oil spills. Air bubbling through a perforated pipe causes an upward water flow that slows the spread of oil. It can also be used to stop fish from entering polluted water. A pneumatic barrier is an… …   Wikipedia

• Dielectric barrier discharge — (DBD) is the electrical discharge between two electrodes separated by an insulating dielectric barrier. Originally called silent (inaudible) discharge and also known as ozone production discharge[1] or partial discharge,[2] it was first reported… …   Wikipedia

• Fannie Barrier Williams — (February 12, 1855 ndash; March 4, 1944) was an African American educator and political and women s rights activist. She became well known for her efforts to have blacks officially represented on the Board of Control of the World s Columbian… …   Wikipedia

• Drain Induced Barrier Lowering — As channel length decreases, the barrier φB to be surmounted by an electron from the source on its way to the drain reduces Drain induced barrier lowering or DIBL is a secondary effect in MOSFETs referring originally to a reduction of threshold… …   Wikipedia

• Blood-brain barrier — A protective network of blood vessels and cells that filters blood flowing to the brain. * * * blood brain barrier n a naturally occurring barrier created by the modification of brain capillaries (as by reduction in fenestration and formation of… …   Medical dictionary