Defence Research Establishments




The Defence Research Establishments were a number of separate UK Ministry of Defence Research Establishments, dating back to World War II, World War I, or even earlier. Each establishment had its own head; known as the Director or the Superintendent. Prior to the formation of the Ministry of Defence each of the three Services, i.e. the Royal Air Force, the Admiralty and the War Office, had their own research establishments; although some establishments had tri-service functions.




Contents






  • 1 World War II


  • 2 Formation, merging and breakup


  • 3 Amalgamation into DERA and split into QinetiQ and Dstl


  • 4 References


  • 5 See also





World War II


At the beginning of World War II there were about a dozen research and development establishments. The main ones were:



  • The Royal Aircraft Establishment - Air

  • The Aeroplane and Armament Experimental Establishment - Air

  • The Admiralty Research Laboratory - Sea

  • The Admiralty Compass Observatory - Sea

  • The Naval Construction Research Establishment - Sea

  • The Armaments Research Department - Triservice



Formation, merging and breakup


Many establishments were formed, merged or changed their names over time to meet the needs of the UK Government at the time. These changes also involved the opening of new sites, operating across multiple sites, change of site location; and closing of sites.


For example, the Explosives Research and Development Establishment (ERDE), merged with the Rocket Propulsion Establishment and became the Propellants, Explosives and Rocket Motor Establishment (PERME). PERME became part of the Royal Armament Research and Development Establishment (RARDE).



Amalgamation into DERA and split into QinetiQ and Dstl


Some of these establishments were merged in 1991 to form the Defence Research Agency (DRA). More were added to DRA in 1995 to form the Defence Evaluation and Research Agency (DERA).


DERA was split up in the early 2000s, with the major part becoming known as QinetiQ and the more sensitive parts retained as Dstl.



References



  • Postan, M.M., Hay, D. and Scott, J.D. (1964). Design and Development of Weapons: Studies in Governmental and Industrial Organisation. (History of the Second World War: United Kingdom Civil Series). London: Her Majesty's Stationery Office and Longmans, Green and Co.


See also




  • Royal Aircraft Establishment (RAE)


  • Royal Armament Research and Development Establishment (RARDE)


  • Royal Signals and Radar Establishment (RSRE)




-

這個網誌中的熱門文章

Post-Redirect-Get with Spring WebFlux and Thymeleaf

圖片
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty{ height:90px;width:728px;box-sizing:border-box; } 2 Can someone explain to me how to implement the post-redirect-get pattern in Spring WebFlux and Thymeleaf? What subscribes on the database save method? @GetMapping("/register") public String showRegisterForm(Model model) { model.addAttribute("user", new User()); return "register"; } @PostMapping public String processRegisterForm(@Valid User user, BindingResult bindingResult) { if (bindingResult.hasErrors()) { return "register"; } else { userRepository.save(user); //what subscribes on this? //how to redirect on e.g. "/login"?
閱讀完整內容

Xamarin.form Move up view when keyboard appear

圖片
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty{ height:90px;width:728px;box-sizing:border-box; } 0 I'm trying to build a Chat app UI, the idea of the Layout was pretty simple: When the input bar is focused, keyboard show up and "push" up the chat bar, as it's a grid, the ListView will resize to fit the screen: I update the input bar's margin to "push" it up: NSValue result = (NSValue)args.Notification.UserInfo.ObjectForKey(new NSString(UIKeyboard.FrameEndUserInfoKey)); CGSize keyboardSize = result.RectangleFValue.Size; if (Element != null){ Element.Margin = new Thickness(0, 0, 0,keyboardSize.Height); //push the entry up to keyboard height when keyboard is activated } And this is
閱讀完整內容

JBPM : POST request for execute process go wrong

圖片
0 I am new to jBPM. I reference jbpm.org for tutorial. And I tried " My First Business Application " example. It is OK. And then I tried the next tutorial " Business Application with Business Asset ". The first steps are going well. I successfully done installation of jBPM Console, drawing business process asset in KIE process and starting the application are going well. And I tested according to reference. I got a problem for sending POST request to my application. I use Chrome Postman client for sending POST request. In tutorial, they give the following link to make POST request. http://localhost:8090/rest/server/containers/business-application-kjar/processes/business-application-kjar.process/instances I do but I always get " 415 Unsupported Media Type " in every time. I
閱讀完整內容