Search results
Results from the WOW.Com Content Network
Positive energy may refer to: Positive energy theorem, a collection of foundational results in general relativity and differential geometry; Positive Energy, a 2015 album by Alpha Blondy and the Solar System; Zheng nengliang (positive energy), an expression commonly used in Chinese political discourse
Positron emission tomography (PET) [1] is a functional imaging technique that uses radioactive substances known as radiotracers to visualize and measure changes in metabolic processes, and in other physiological activities including blood flow, regional chemical composition, and absorption.
Although spectral CT is already clinically available in the form of dual-energy scanners, photon-counting CT offers a number of advantages. A PCD can implement more than two energy thresholds with a higher degree of separation than what is possible to achieve in dual-energy CT.
Positron emission tomography–computed tomography (better known as PET-CT or PET/CT) is a nuclear medicine technique which combines, in a single gantry, a positron emission tomography (PET) scanner and an x-ray computed tomography (CT) scanner, to acquire sequential images from both devices in the same session, which are combined into a single superposed (co-registered) image.
Iodinated contrast contains iodine.It is the main type of radiocontrast used for intravenous administration.Iodine has a particular advantage as a contrast agent for radiography because its innermost electron ("k-shell") binding energy is 33.2 keV, similar to the average energy of x-rays used in diagnostic radiography.
The positive energy theorem (also known as the positive mass theorem) refers to a collection of foundational results in general relativity and differential geometry.Its standard form, broadly speaking, asserts that the gravitational energy of an isolated system is nonnegative, and can only be zero when the system has no gravitating objects.
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
The department oversees the state's natural resources and environment and regulates public utilities and energy policy. It is headquartered in Hartford . The agency was created on July 1, 2011, by the merging of two other state agencies, the Connecticut Department of Environmental Protection and the Connecticut Department of Public Utility ...