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Lawson criterion. The Lawson criterion is a figure of merit used in nuclear fusion research. It compares the rate of energy being generated by fusion reactions within the fusion fuel to the rate of energy losses to the environment. When the rate of production is higher than the rate of loss, the system will produce net energy.
The armed forces consist of six service branches: the Army, Marine Corps, Navy, Air Force, Space Force, and Coast Guard. [14] [15] All six armed services are among the eight uniformed services of the United States. [16] Each of the different military services is assigned a role and domain. The Army conducts land operations, while the Navy and ...
Dame Emily Jane Ruth Lawson DBE is a British management consultant and the interim Chief Operating Officer of NHS England. Lawson led the initial rollout of the NHS COVID-19 vaccine programme in 2020 and the subsequent booster programme in 2021. Prior to this, she worked for McKinsey & Company, Morrisons, and Kingfisher plc in human resources.
List of chemical elements. 118 chemical elements have been identified and named officially by IUPAC. A chemical element, often simply called an element, is a type of atom which has a specific number of protons in its atomic nucleus (i.e., a specific atomic number, or Z ). [1]
Australia is a federal parliamentary constitutional monarchy comprising six states and ten territories: the states of New South Wales, Victoria, Queensland, Tasmania, South Australia and Western Australia; the major mainland Australian Capital Territory and Northern Territory; and other minor or external territories.
Robert Edward Lee (January 19, 1807 – October 12, 1870) was a Confederate general during the American Civil War, toward the end of which he was appointed the overall commander of the Confederate States Army. He led the Army of Northern Virginia —the Confederacy's most powerful army—from 1862 until its surrender in 1865, earning a ...
Self-supervised learning (SSL) is a paradigm in machine learning where a model is trained on a task using the data itself to generate supervisory signals, rather than relying on external labels provided by humans. In the context of neural networks, self-supervised learning aims to leverage inherent structures or relationships within the input ...
A map of the United States showing its 50 states, federal district and five inhabited territories. Alaska, Hawaii, and the territories are shown at different scales, and the Aleutian Islands and the uninhabited northwestern Hawaiian Islands are omitted from this map. This article is part of a series on.