positive Joule-Thomson effect

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• Joule–Thomson effect — In physics, the Joule–Thomson effect or Joule–Kelvin effect describes the temperature change of a gas or liquid when it is forced through a valve or porous plug while kept insulated so that no heat is exchanged with the environment.cite book… …   Wikipedia

• Thermoelectric effect — The thermoelectric effect is the direct conversion of temperature differences to electric voltage and vice versa. On the measurement scale of everyday life, a thermoelectric device creates a voltage when there is a different temperature on each… …   Wikipedia

• Inversion temperature — The inversion temperature in thermodynamics and cryogenics is the critical temperature below which a non ideal gas (all gases in reality) that is expanded at constant enthalpy will experience a temperature decrease, and above which will… …   Wikipedia

• USS Thresher (SSN-593) — The second USS Thresher (SSN 593) was the lead ship of her class of nuclear powered attack submarines in the United States Navy. Her loss at sea during deep diving tests in 1963 is often considered a watershed event in the implementation of the… …   Wikipedia

• List of oil field acronyms — Contents 1 # 2 A 3 B 4 C …   Wikipedia

• Electricity — (from the Greek word ήλεκτρον, (elektron), meaning amber, and finally from New Latin ēlectricus , amber like ) is a general term that encompasses a variety of phenomena resulting from the presence and flow of electric charge. These include many… …   Wikipedia

• History of electromagnetism — The history of electromagnetism, that is the human understanding and recorded use of electromagnetic forces, dates back over two thousand years ago, see Timeline of electromagnetism. The ancients must have been acquainted with the effects of… …   Wikipedia

• atom — /at euhm/, n. 1. Physics. a. the smallest component of an element having the chemical properties of the element, consisting of a nucleus containing combinations of neutrons and protons and one or more electrons bound to the nucleus by electrical… …   Universalium

• physical science, principles of — Introduction       the procedures and concepts employed by those who study the inorganic world.        physical science, like all the natural sciences, is concerned with describing and relating to one another those experiences of the surrounding… …   Universalium

• radiation — radiational, adj. /ray dee ay sheuhn/, n. 1. Physics. a. the process in which energy is emitted as particles or waves. b. the complete process in which energy is emitted by one body, transmitted through an intervening medium or space, and… …   Universalium

• electromagnetism — /i lek troh mag ni tiz euhm/, n. 1. the phenomena associated with electric and magnetic fields and their interactions with each other and with electric charges and currents. 2. Also, electromagnetics. the science that deals with these phenomena.… …   Universalium