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51 articles for “Aerospace”
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Research ArticleOpen accessIn the keywordsFiber Laser Beam Welding Between Niobium and TitaniumRafael Humberto de Mota Siqueira, Isabela Atilio, Caroline Cristine de Andrade Ferreira et al.Niobium and titanium are difficult to weld because of many factors, such as their tendency to oxidize and burn and the relatively high melting temperatures. Here, fiber laser beam welding has been proposed to weld Nb and Ti sheets in overlap geometry. In the current research, one millimeter thick CP-Ti was placed at the top and a 3 mm pure … …Journal of Aircraft and Spacecraft Technology, Vol. 4, Issue 1 · 9 Mar 2020 · 7,715 accessesView PDFCite
Research ArticleOpen accessIn the keywordsAbout Aircraft's New Power and PropulsionRelly Victoria Virgil Petrescu, Florian Ion Tiberiu PetrescuEven though the current classical methods of aerospace propulsion are much improved, some of the most modern methods have already been introduced, including propulsion with electric motors. Energy can be obtained from hydrogen burners, honeycomb burners to protect the combustion of hydrogen that burns 10 times faster than conventional fuels or alcohols. Hydrogen storage is also done in honeycomb cell … …American Journal of Engineering and Applied Sciences, Vol. 13, Issue 1 · 5 Mar 2020 · 7,325 accessesView PDFCite
Research ArticleOpen accessIn the keywordsA First-Class Ticket to the Planet Mars, PleaseRelly Victoria Petrescu, Raffaella Aversa, Bilal Akash et al.The paper presents some aspects related to the current stage in the aerospace industry, referring to the current possibilities of moving in space. The main problem that has kept mankind for so many millennia has been the less speed of movement, but also the difficult exit into outer space. For a ship to be able to defeat gravitational forces and … …Journal of Aircraft and Spacecraft Technology, Vol. 1, Issue 4 · 1 Dec 2017 · 7,003 accessesView PDFCite
Review ArticleOpen accessIn the keywordsAbout Northrop GrummanRelly Victoria Petrescu, Raffaella Aversa, Bilal Akash et al.The Northrop Grumman (formerly Ryan Aeronautical) RQ-4 Global Hawk (known as Tier II+ during development) is an Unmanned Aerial Vehicle (UAV) used by the United States Air Force and Navy and the German Air Force as a surveillance aircraft. The Northrop Grumman B-2 Spirit (also known as the Stealth Bomber) is an American strategic bomber, featuring low observable stealth technology … …Journal of Aircraft and Spacecraft Technology, Vol. 1, Issue 3 · 19 Aug 2017 · 9,172 accessesView PDFCite
Review ArticleOpen accessIn the keywordsWhen Boeing is Dreaming – a ReviewRelly Victoria Virgil Petrescu, Raffaella Aversa, Bilal Akash et al.Boeing is an aeronautical and aerospace manufacturer. Its head office is located in Chicago, Illinois. Its two largest plants are located in Wichita, Kansas and Everett, near Seattle. This aircraft manufacturer specializes in the design of civil aircraft, but also in military aircraft, helicopters and in satellites and rockets with its Boeing Defense, Space and Security division. In 2012, it … …Journal of Aircraft and Spacecraft Technology, Vol. 1, Issue 3 · 7 Jul 2017 · 13,868 accessesView PDFCite
Review ArticleOpen accessIn the keywordsLockheed Martin-A Short ReviewRelly Victoria Petrescu, Raffaella Aversa, Bilal Akash et al.Lockheed Martin is a company aerospace global American, defense, security and advanced technologies with interests in the world. Has been formed by the merger of Lockheed with Martin Marietta in March 1995. Has its head office in Bethesda, Maryland, in the area of Washington DC. Lockheed Martin has 126,000 employees in the entire world. Marillyn Hewson is the current President … …Journal of Aircraft and Spacecraft Technology, Vol. 1, Issue 1 · 30 May 2017 · 10,229 accessesView PDFCite
Research ArticleOpen accessIn the keywordsLeanness Achievement through People Development System in Implementing Lean Process ManagementA. P. Puvanasvaran, C. H. Tay, M. H.M.A. Megat et al.Problem Statement: Many organizations fail to unlock the infinite potential of their workforce. In that case there will be more overhead, with more layers of management, which in turn could cause slower reaction times in fast changing business. Employees should only start, run and optimize the process, even developing themselves with the aid of People Development Systems (PDS), when they … …American Journal of Engineering and Applied Sciences, Vol. 2, Issue 1 · 31 Mar 2009 · 8,551 accessesView PDFCite
Research ArticleOpen accessIn the keywordsA Method for Transmitting Spacecrafts in Space with Velocity of at Least 0.01 of the Light Speed Using Materials with Very High Kinetic Energy in High Electric FieldsMario Nady AiadMany space new missions are on calendar this decade for Moon, Mars and other planets. Some of these missions are depending on simple reliable chemical thrusters and others on the nonchemical advanced propulsion techniques. In most of nonchemical techniques a nuclear source of energy is necessary as in nuclear electric rockets where the maximum velocity produced is around 20 km/s. … …American Journal of Engineering and Applied Sciences, Vol. 16, Issue 4 · 22 Dec 2023 · 5,365 accessesView PDFCite
Review ArticleOpen accessIn the keywordsSome Aspects Related to DronesRelly Victoria Virgil PetrescuDrones developed very quickly and today have come to conquer airspace even more than conventional aviation. Whether they are unmanned or with a crew, whether they are on autopilot, usually remotely coordinated, or remote-controlled or even manned, drones in their diversity today have taken on a very large scale and they will surely develop rapidly and further, being the ones … …American Journal of Engineering and Applied Sciences, Vol. 13, Issue 3 · 23 Sep 2020 · 7,110 accessesView PDFCite
Review ArticleOpen accessIn the keywordsOn Mars there was WaterFlorian Ion Tiberiu PetrescuScientists overseeing Curiosity's mission on Mars confirmed that the shape and size of the pebbles on the dry tracks indicate that they were transported and eroded by the waters. According to them, the rover found the roots of rocks equivalent to the flowing waters on Earth. The planet Mars, the closest to Terra, had life conditions similar to our blue … …American Journal of Engineering and Applied Sciences, Vol. 11, Issue 2 · 11 May 2018 · 8,628 accessesView PDFCite