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Fact-checking is the process of verifying the factual accuracy of questioned reporting and statements. Fact-checking can be conducted before or after the text or content is published or otherwise disseminated. Internal fact-checking is such checking done in-house by the publisher to prevent inaccurate content from being published; when the text ...
The background from earth radioactivity(Th/U) and 137 Xe contamination led to ≈2×10 −3 counts/(keV·kg·yr) in the detector. Energy resolution near Q ββ of 1.53% was achieved. In August 2011, EXO-200 was the first experiment to observe double beta decay of 136 Xe, with a half life of 2.11×10 21 years.
The thermal conductivity detector ( TCD ), also known as a katharometer, is a bulk property detector and a chemical specific detector commonly used in gas chromatography. [1] This detector senses changes in the thermal conductivity of the column eluent and compares it to a reference flow of carrier gas. Since most compounds have a thermal ...
Formal verification is a key incentive for formal specification of systems, and is at the core of formal methods . It represents an important dimension of analysis and verification in electronic design automation and is one approach to software verification. The use of formal verification enables the highest Evaluation Assurance Level ( EAL7 ...
The main criticism of the HEART technique is that the EPC data has never been fully released and it is therefore not possible to fully review the validity of Williams EPC data base. Kirwan has done some empirical validation on HEART and found that it had "a reasonable level of accuracy" but was not necessarily better or worse than the other ...
Particle colliders, detectors, and computers capable of looking for Higgs bosons took more than 30 years (c. 1980~2010) to develop. The importance of this fundamental question led to a 40-year search , and the construction of one of the world's most expensive and complex experimental facilities to date, CERN 's Large Hadron Collider , [29] in ...
Design rule checking. In electronic design automation, a design rule is a geometric constraint imposed on circuit board, semiconductor device, and integrated circuit (IC) designers to ensure their designs function properly, reliably, and can be produced with acceptable yield. Design rules for production are developed by process engineers based ...
A flame ionization detector ( FID) is a scientific instrument that measures analytes in a gas stream. It is frequently used as a detector in gas chromatography. The measurement of ions per unit time makes this a mass sensitive instrument. [1] Standalone FIDs can also be used in applications such as landfill gas monitoring, fugitive emissions ...
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