1300. 14-foot bubble chamber research and development programme; over-all plan and optics details

Vacuum ◽  
1968 ◽  
Vol 18 (9) ◽  
pp. 538
Keyword(s):  
Research And Development ◽  
Bubble Chamber ◽  
Development Programme

La naissance du projet Arpège-IFS à Météo-France et au CEPMMT

2021 ◽  
pp. 035
Author(s):  
Jean Pailleux ◽  
Jean Coiffier ◽  
Philippe Courtier ◽  
Emmanuel Legrand
Keyword(s):  
Research And Development ◽  
Numerical Weather Prediction ◽  
Weather Prediction ◽  
Important Change ◽  
Development Programme ◽  
Strategic Decisions ◽  
Variational Assimilation ◽  
Operational Models ◽  
Large Research ◽  
Complete Transformation

À Météo-France, la décennie 1985-1995 a vu une profonde transformation de la prévision numérique du temps (PNT) qui a d'abord conduit au remplacement des modèles de prévision opérationnels Émeraude et Péridot par Arpège et Aladin. Dans la même période, un vaste programme de recherche et de développement a été lancé conjointement avec le CEPMMT concernant l'initialisation des modèles par des techniques d'assimilation de données dites « variationnelles ». Cette période a été aussi marquée par un virage vers beaucoup plus de coopération entre institutions travaillant sur la PNT dans les différents pays européens. Jean-François Geleyn s'est trouvé en première ligne de cette profonde transformation, toujours impliqué dans les décisions stratégiques, mais aussi souvent impliqué comme expert dans les études et développements touchant plusieurs aspects scientifiques. At Météo-France, the 1985-1995 decade was marked by a complete transformation of Numerical Weather Prediction (NWP) which led first to the replacement of the operational models Émeraude and Péridot by Arpège and Aladin. In the same period, a large research and development programme was initiated jointly with ECMWF on model initialisation through so-called 'variational' assimilation techniques. This period was also marked by an important change towards closer cooperation between the different institutions working on NWP in European countries. Jean-François Geleyn was instrumental in this complete transformation of NWP. He was always involved in the strategic decisions, but also as an expert in the studies and developments on several scientific aspects.

The Advanced Passenger Train

1976 ◽  
Vol 190 (1) ◽  
pp. 653-663 ◽  
Author(s):  
D. Boocock ◽  
M. Newman
Keyword(s):  
Research And Development ◽  
Operating Performance ◽  
Development Programme ◽  
Technical Aspects ◽  
Passenger Train ◽  
Electric Train

Synopsis The history and development of British Railways' Advanced Passenger Train (APT) are discussed. The technical objectives are considered in the context of their value to commercial and operating performance. Among the technical aspects discussed are dynamics of guidance and suspension, aerodynamics, power and transmission, braking, and lightweight body structures. Highlights of the research and development programme are described, with reference to laboratory and track testing of the experimental train (APT-E) and associated experimental vehicles. The paper concludes with a description of the design of the prototype electric train (APT-P), of which three are currently being constructed for operation on the London/Glasgow route.

scholarly journals The European roadmap towards fusion electricity

2019 ◽  
Vol 377 (2141) ◽  
pp. 20170432 ◽  
Author(s):  
A. J. H. Donné
Keyword(s):  
Power Plant ◽  
Research And Development ◽  
Fuel Cycle ◽  
Fusion Energy ◽  
Development Programme ◽  
Current Status ◽  
Fusion Power ◽  
First Time ◽  
Design Construction ◽  
Open Issues

The European roadmap to the realization of fusion electricity breaks the quest into eight missions. For each mission, it reviews the current status of research, identifies open issues, and proposes a research and development programme. ITER is the key facility on the roadmap as it is expected to achieve most of the important milestones on the path to fusion power. The Fusion Roadmap is tightly connected to the ITER schedule and the vast majority of resources in fusion research are presently dedicated to ITER and its accompanying experiments. Parallel to the ITER exploitation in the 2030s, the construction of the demonstration power plant DEMO needs to be prepared. DEMO will for the first time supply fusion electricity to the grid and it will have a self-sufficient fuel cycle. The design, construction and operation of DEMO require full involvement of industry to ensure that, after a successful DEMO operation, industry can take responsibility for commercial fusion power. The European fusion roadmap provides a coherent path towards the fusion power plant, and it proposes in an integrated way to find solutions for all challenges that still need to be addressed. This article is part of a discussion meeting issue ‘Fusion energy using tokamaks: can development be accelerated?’

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