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ARCASPACE
Romanian Cosmonautics and Aeronautics Association (), also known as ARCAspace, is an aerospace company based in Râmnicu Vâlcea, Romania. It builds rockets, high-altitude balloons, and UAV, unmanned aerial vehicles. It was founded in 1999 as a non-governmental organization in Romania by the Romanian engineer and entrepreneur Dumitru Popescu and other rocket and aeronautics enthusiasts. Since then, ARCA has launched two stratospheric rockets and four large-scale stratospheric balloons including a cluster balloon. It was awarded two governmental contracts with the Romanian government and one contract with the European Space Agency. ARCASpace is currently developing several rocket systems, both orbital and suborbital, under the EcoRocket program. These vehicles include the CER rocket systems, the EcoRocket Demonstrator, Nano, 5 & Heavy, and the A1 strategic anti-ballistic interceptor. ARCA has yet to launch a vehicle above the Kármán line, Karman line, or sent a payload to orbit, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IAR 111
The IAR-111 Excelsior was a supersonic mothership project, designed by ARCA Space Corporation, intended to transport a rocket payload up to and for developing space tourism related technologies. The aircraft was supposed to be constructed almost entirely from composite materials, and was to be designed for take-off and landing from the sea surface. The project has since been abandoned. History The design of the aircraft started before the successful launch of the Helen 2 rocket. ARCA kept work on the project secret and decided to reveal it to the public in a press conference that took place at BRD – Groupe Société Générale, BRD headquarters in Bucharest in December 2010. The initial name of the aircraft was E-111. In March 2011 ARCA received approval from Industria Aeronautică Română, IAR S.A. Brasov to use its initials on the aircraft, so E-111 was officially renamed IAR-111. Work on the fuselage moulds started in early 2011 and were completed in September. The cockpit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Private Company
A privately held company (or simply a private company) is a company whose Stock, shares and related rights or obligations are not offered for public subscription or publicly negotiated in their respective listed markets. Instead, the Private equity, company's stock is offered, owned, traded or exchanged privately, also known as "over-the-counter (finance), over-the-counter". Related terms are unlisted organisation, unquoted company and private equity. Private companies are often less well-known than their public company, publicly traded counterparts but still have major importance in the world's economy. For example, in 2008, the 441 list of largest private non-governmental companies by revenue, largest private companies in the United States accounted for $1.8 trillion in revenues and employed 6.2 million people, according to ''Forbes''. In general, all companies that are not owned by the government are classified as private enterprises. This definition encompasses both publ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Romanian Naval Forces
The Romanian Naval Forces () is the principal naval branch of the Romanian Armed Forces and operates in the Black Sea and on the Danube. It traces its history back to 1860. History The Romanian Navy was founded in 1860 as a river flotilla on the Danube. After the unification of Wallachia and Moldavia, Alexandru Ioan Cuza, the ruling Domnitor of the United Principalities, Romanian Principalities, decided on 22 October 1860 by order no. 173 to unify the navies into a single flotilla, the Romanian Danube Flotilla, Danube Flotilla Corps. The navy was French-trained and organized.Axworthy, p. 327 Officers were initially sent to Brest Naval Training Centre in France, as the Military School in Bucharest did not have a naval section. The first Commander-in-chief of the navy was Colonel :ro:Nicolae Steriade, Nicolae Steriade. The base was first established in 1861 at Izmail, but it was later relocated in 1864 to Brăila and in 1867 to Galați. The equipment was modest at best, with 3 sh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ablation
Ablation ( – removal) is the removal or destruction of something from an object by vaporization, chipping, erosion, erosive processes, or by other means. Examples of ablative materials are described below, including spacecraft material for ascent and atmospheric reentry, ice and snow in glaciology, biological tissues in medicine and passive fire protection materials. Artificial intelligence In artificial intelligence (AI), especially machine learning, Ablation (artificial intelligence), ablation is the removal of a component of an AI system. The term is by analogy with biology: removal of components of an organism. Biology Biological ablation is the removal of a biological structure or functionality. Genetic ablation is another term for gene silencing, in which gene expression is abolished through the alteration or deletion of genetic sequence information. In cell ablation, individual cells in a population or culture are destroyed or removed. Both can be used as experimen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turbopump
A turbopump is a fluid pump with two main components: a rotodynamic pump and a driving gas turbine, usually both mounted on the same shaft, or sometimes geared together. They were initially developed in Germany in the early 1940s. The most common purpose of a turbopump is to produce a high-pressure fluid for feeding a combustion chamber. While other use cases exist, they are most commonly found in liquid rocket engines. There are two common types of pumps used in turbopumps: a centrifugal pump, where the pumping is done by throwing fluid outward at high speed, or an axial-flow pump, where alternating rotating and static blades progressively raise the pressure of a fluid. Axial-flow pumps have small diameters but give relatively modest pressure increases. Although multiple compression stages are needed, axial flow pumps work well with low-density fluids. Centrifugal pumps are far more powerful for high-density fluids but require large diameters for low-density fluids. Histo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mil Mi-17
The Mil Mi-17 (NATO reporting name: Hip) is a Soviet-designed Russian military helicopter family introduced in 1975 (Mi-8M), continuing in production at two factories in Russia, in Kazan and Ulan-Ude. It is known as the Mi-8M series in Russian service. The helicopter is mostly used as a medium twin-turbine transport helicopter, as well as an armed gunship version. Development Developed from the basic Mi-8 airframe, the Mi-17 was fitted with the larger Klimov TV3-117MT engines, rotors, and transmission developed for the Mi-14, along with fuselage improvements for heavier loads. Optional engines for " hot and high" conditions are the Isotov TV3-117VM. Recent exports to China and Venezuela for use in high mountains have the new Klimov VK-2500 version of the Klimov TV3-117 engine with FADEC control. The designation Mi-17 is for export; the Russian armed forces call it the Mi-8MT. The Mi-17 is recognisable by the tail rotor on the port side instead of the starboard side, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Industria Aeronautică Română
Industria Aeronautică Română (IAR) (now IAR S.A. Brașov), or Romanian Aeronautic Industry in English, is a Romanian aerospace manufacturer. It is based in Ghimbav, near Brașov, Romania. IAR was founded in 1925 with the aid of the Romanian government, which sought to reduce reliance on foreign companies to supply the Royal Romanian Air Force with aircraft and associated equipment. In addition to its designs, the company built numerous foreign-designed aircraft licensed production, under license as well. IAR produced a low-wing all-metal monoplane, the IAR 80, during the Second World War; this combat aircraft was extensively used by the nation during the conflict. During the Cold War era, the company branched out into helicopters, securing licensing agreements with France for their designs in the field, leading to the IAR 316 and IAR 330. In 2000, IAR partnered with the multinational helicopter manufacturer Eurocopter, Eurocopter Group to create the ''Eurocopter Romania'' joint ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liquid Oxygen
Liquid oxygen, sometimes abbreviated as LOX or LOXygen, is a clear cyan liquid form of dioxygen . It was used as the oxidizer in the first liquid-fueled rocket invented in 1926 by Robert H. Goddard, an application which is ongoing. Physical properties Liquid oxygen has a clear cyan color and is strongly paramagnetic: it can be suspended between the poles of a powerful horseshoe magnet. Liquid oxygen has a density of , slightly denser than liquid water, and is cryogenic with a freezing point of and a boiling point of at . Liquid oxygen has an expansion ratio of 1:861 and because of this, it is used in some commercial and military aircraft as a transportable source of breathing oxygen. Because of its cryogenic nature, liquid oxygen can cause the materials it touches to become extremely brittle. Liquid oxygen is also a very powerful oxidizing agent: organic materials will burn rapidly and energetically in liquid oxygen. Further, if soaked in liquid oxygen, some materials su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Executor Engine Installation
An executor is someone who is responsible for executing, or following through on, an assigned task or duty. The feminine form, executrix, is sometimes used. Executor of will An executor is a legal term referring to a person named by the maker of a will or nominated by the testator to carry out the instructions of the will. Typically, the executor is the person responsible for offering the will for probate, although it is not required that they fulfill this. The executor's duties also include handing over property to the beneficiaries as designated in the will, obtaining information of potential heirs, collecting and arranging for payment of debts of the estate and approving or disapproving creditors' claims. An executor makes sure estate taxes are calculated, necessary forms are filed, and the corresponding payments are made. They also assist the attorney with the estate. Additionally, the executor acts as a legal conveyor who designates where the donations will be sent using ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BRD – Groupe Société Générale
BRD - Groupe Société Générale SA is a Romanian bank which is based in Bucharest, Romania. It was founded in 1923 and is currently the third largest bank by assets (about 10.9 bn €) in Romania. The majority of shares are owned by French Société Générale financial group who holds a stake of 60.17%. It was rebranded after the Société Générale acquired Banca Română pentru Dezvoltare () from the Romanian Government in 1999. History Foundation In 1923, Societatea Națională de Credit Industrial was founded as a public institution. The National Bank of Romania held the majority with 30% of the share capital. After World War II and the Nationalization Law of June 1948, Societatea Națională de Credit Industrial was nationalized and became Banca de Credit pentru Investiții. BRD was founded in 1990 as a commercial bank by taking over assets of the former Investment Bank of Romania. Since 31 October 2012, the general manager of the BRD is Philippe Charles Lhotte. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monopropellant
Monopropellants are propellants consisting of chemicals that release energy through exothermic chemical decomposition. The molecular bond energy of the monopropellant is released usually through use of a catalyst. This can be contrasted with bipropellants that release energy through the chemical reaction between an oxidizer and a fuel. While stable under defined storage conditions, monopropellants decompose very rapidly under certain other conditions to produce a large volume of its own energetic (hot) gases for the performance of mechanical work. Although solid deflagrants such as nitrocellulose, the most commonly used propellant in firearms, could be thought of as monopropellants, the term is usually reserved for liquids in engineering literature. Uses The most common use of monopropellants is in low-impulse monopropellant rocket motors, such as reaction control thrusters, the usual propellant being hydrazine, p. 230 which is generally decomposed by exposure to an irid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Google Lunar X Prize
The Google Lunar X Prize (GLXP) was a 2007–2018 inducement prize space competition organized by the X Prize Foundation, and sponsored by Google. The challenge called for privately funded teams to be the first to land a lunar rover on the Moon, travel 500 meters, and transmit back to Earth high-definition video and images. The original deadline was the end of 2014, with additional prize money for a landing by 2012. In 2015, XPRIZE announced that the competition deadline would be extended to December 2017 if at least one team could secure a verified launch contract by 31 December 2015. Two teams secured such a launch contract, and the deadline was extended. In August 2017, the deadline was extended again, to 31 March 2018. Entering 2018, five teams remained in the competition: SpaceIL, Moon Express, Synergy Moon, TeamIndus, and Team Hakuto, having secured verified launch contracts with Spaceflight Industries, Rocket Lab, Interorbital Systems, and ISRO (jointly f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
