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In electrical and safety engineering, hazardous locations (HazLoc, pronounced haz·lōk) are places where fire or explosion hazards may exist. Sources of such hazards include gases, vapors, dust, fibers, and flyings, which are combustible or flammable. Electrical equipment installed in such locations can provide an ignition source, due to ...
Operating temperature. An operating temperature is the allowable temperature range of the local ambient environment at which an electrical or mechanical device operates. The device will operate effectively within a specified temperature range which varies based on the device function and application context, and ranges from the minimum ...
Triiodothyronine, also known as T3, is a thyroid hormone. It affects almost every physiological process in the body, including growth and development, metabolism, body temperature, and heart rate. [ 1]
Apple released a security patch for the issue as part of its iOS 10.3.3 update, [120] though older devices running iOS 9, including the iPad 2, 3rd generation iPad, iPhone 4S, the first-generation iPad Mini, and the 5th generation iPod Touch were left without an available update, causing concerns over the safety of the iPad 2, the 3rd ...
A lithium-ion or Li-ion battery is a type of rechargeable battery that uses the reversible intercalation of Li + ions into electronically conducting solids to store energy. In comparison with other commercial rechargeable batteries, Li-ion batteries are characterized by higher specific energy, higher energy density, higher energy efficiency, a longer cycle life, and a longer calendar life.
The Palm Tungsten T3 came with a built-in 900 mAh rechargeable Lithium ion battery. The T1 and T2 also used a 900 mAh battery, but because of the upgraded Palm Tungsten T3 processor the battery life is significantly reduced. The modest battery life is the largest criticism of the Tungsten T3 compared to other Palm models.
High-temperature superconductors ( high-Tc or HTS) are defined as materials with critical temperature (the temperature below which the material behaves as a superconductor) above 77 K (−196.2 °C; −321.1 °F), the boiling point of liquid nitrogen. [ 1] They are only "high-temperature" relative to previously known superconductors, which ...
A typical 105-key computer keyboard, consisting of sections with different types of keys. A computer keyboard consists of alphanumeric or character keys for typing, modifier keys for altering the functions of other keys, [1] navigation keys for moving the text cursor on the screen, function keys and system command keys—such as Esc and Break—for special actions, and often a numeric keypad ...