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The Deep Space 1 and Dawn used the NSTAR, a solar-powered electrostatic ion propulsion engine. The NASA Solar Technology Application Readiness (NSTAR) is a type of spacecraft ion thruster called electrostatic ion thruster. [1] [2] It is a highly efficient low-thrust spacecraft propulsion running on electrical power generated by solar arrays.
The Markup Validation Service is a validator by the World Wide Web Consortium (W3C) that allows Internet users to check pre-HTML5 HTML and XHTML documents for well-formed markup against a document type definition (DTD). Markup validation is an important step towards ensuring the technical quality of web pages.
The EU trust mark for qualified trust services. A qualified website authentication certificate (QWAC certificate) is a qualified digital certificate under the trust services defined in the European Union eIDAS Regulation.
Dawn is a retired space probe that was launched by NASA in September 2007 with the mission of studying two of the three known protoplanets of the asteroid belt: Vesta and Ceres. [1] In the fulfillment of that mission—the ninth in NASA's Discovery Program — Dawn entered orbit around Vesta on July 16, 2011, and completed a 14-month survey ...
The Drug Abuse Warning Network (DAWN) was a public health surveillance system in the United States that monitored drug-related visits to hospital emergency departments and drug-related deaths. [1] DAWN was discontinued in 2011, [ 1 ] but its creator, the Substance Abuse and Mental Health Services Administration (SAMHSA), continues to develop ...
Democracy for the Arab World Now (DAWN) is an American non-profit organization launched in September 2020 that advocates for democracy and human rights in the Arab world. [ 1 ] [ 2 ] DAWN was founded by Saudi journalist Jamal Khashoggi before his assassination .
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A trust service is defined as an electronic service that entails one of three possible actions. First it may concern the creation, the verification or the validation of electronic signatures, as well as time stamps or seals, electronically registered delivery services and certifications that are required with these services. The second action ...