VTAC Diagram
VTAC may mean: * Victorian Tertiary Admissions Centre * Vietnam Tactical Tomahawk See also * Ventricular tachycardia, or V-tach, an irregular beating of the heart * Two-stroke power valve system#Honda V-TACS, a foot-operated power valve system made by Honda * VTEC VTEC (Variable Valve Timing & Lift Electronic Control) is a system developed by Honda to improve the volumetric efficiency of a four-stroke internal combustion engine, resulting in higher performance at high RPM, and lower fuel consumption at low ...

Victorian Tertiary Admissions Centre
The Victorian Tertiary Admissions Centre (VTAC) is the administrative body which processes applications for universities (and other tertiary institutions) in the state of Victoria (Australia). Application system Victorian Tertiary Admissions Centre (VTAC) processes applications from suitably qualified students, which may list up to 12 preferences for tertiary courses in the state of Victoria. Tertiary institutions determine whether the applicant is given an offer to undertake a course – VTAC then informs students of the highest preferred course they have been offered, if any. See also * Australian Tertiary Admission Rank The Australian Tertiary Admission Rank (ATAR) is the primary criterion for domestic student entry into undergraduate courses in Australian public universities. It was gradually introduced to most states and territories in 2009–10 and has sinc ... References External links VTAC website Education in Victoria (Australia) Australian tertiary educatio ...
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American Tomahawk Company
American Tomahawk Company is a US-based company which manufactures modern tomahawks for use by the US Military. It was founded in 1966 by Peter LaGana to make tomahawks for the Vietnam War and folded in the 1970s. ATC was revived in March 2019 by RMJ Tactical to produce tomahawks for a wide range of outdoor uses and to continue on the great military history. The famous VTAC has been revised, updated and re-introduced at the Model 1 Tomahawk. History The company was founded in 1966 by Peter LaGana with the original Vietnam Tomahawk design. This original model featured a wood handle, an axe head with reverse spike, and a leather sheath. LaGana manufactured 4,000 Tomahawks for soldiers and marines for use in the jungles of Southeast Asia. In November 2000, professional knife and tomahawk throwers Andy Prisco and Bobby Branton approached LaGana, and got his approval to license his design and restart the defunct firm in January 2001. The company resumed production of the original de ...
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Ventricular Tachycardia
Ventricular tachycardia (V-tach or VT) is a fast heart rate arising from the lower chambers of the heart. Although a few seconds of VT may not result in permanent problems, longer periods are dangerous; and multiple episodes over a short period of time are referred to as an electrical storm. Short periods may occur without symptoms, or present with lightheadedness, palpitations, or chest pain. Ventricular tachycardia may result in ventricular fibrillation (VF) and turn into cardiac arrest. This conversion of the VT into VF is called the degeneration of the VT. It is found initially in about 7% of people in cardiac arrest. Ventricular tachycardia can occur due to coronary heart disease, aortic stenosis, cardiomyopathy, electrolyte problems, or a heart attack. Diagnosis is by an electrocardiogram (ECG) showing a rate of greater than 120 beats per minute and at least three wide QRS complexes in a row. It is classified as non-sustained versus sustained based on whether it lasts le ...
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Two-stroke Power Valve System
{{Unreferenced, date=February 2018 The two-stroke power valve system is an improvement to a conventional two-stroke engine that gives a high power output over a wider RPM range. Operation of a two-stroke engine A ''stroke'' is the action of a piston travelling the full length of its cylinder. In a two-stroke engine, one of the two strokes combines the intake stroke and the compression stroke, while the other stroke combines the combustion stroke and the exhaust stroke. As the piston travels upward in the cylinder, it creates low pressure area in the crankcase; this draws fresh air and atomized fuel from the carburetor through a hole in the cylinder wall or directly into the crankcase. As the piston continues travelling upward, transfer ports and the exhaust ports are closed off, thus trapping the combustible mixture in the combustion chamber. As the piston reaches the top of the cylinder, the mixture in the cylinder is compressed to the point of ignition. The second stroke beg ...
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