منابع مشابه
Improved performance of subballast stabilized using geocell for high speed train
Rapid urbanization and growing industrial demand in many developing countries has led to frequent congestion of the transport infrastructure. Therefore, the expansion of high-speed rail (HSR) networks is crucial to meet this growing demand. Nevertheless, applying high cyclic stress causes significant lateral spreading and in turn excessive settlements of the track substructure. This problem bec...
متن کاملImproved anaerobic indicator.
Methylene blue is the most extensively used chemical indicator of anaerobiosis. Its use as such an indicator was reported early in the literature (Smith, Wilder Quarter Century Book, p. 187, 1893). Techniques such as hanging strips of methylene blue-impregnated gauze inside an anaerobic jar were described by van Reimsdijk (Ned. Tijdschr. Geneesk. 66:1423, 1922). Present-day microbiologists ofte...
متن کاملCrew Rostering for the High Speed Train
At the time of writing we entered the final stage of implementing the crew rostering system Harmony CDR to facilitate the planning of catering crews on board of the Thalys, the High Speed Train connecting Paris, Cologne, Brussels, Amsterdam, and Geneva. Harmony CDR optimally supports the creation of crew rosters in two ways. Firstly, Harmony CDR contains a powerful algorithm to automatically ge...
متن کاملImproved Search for Night Train Connections
The search for attractive night train connections is fundamentally different from ordinary search: the primary objective of a costumer of a night train is to have a reasonably long sleeping period without interruptions due to train changes. For most passenger it is also undesired to reach the final destination too early in the morning. These objectives are in sharp contrast to standard informat...
متن کاملA study of the train performance simulation for Korean next Generation high-speed train
The next generation high-speed train system, HEMU-400X, has been developed in Korea since 2007. HEMU-400X means High-speed Electric Multiple Unit – 300 experimental. Objectives of HEMU-400X project is development of next generation high-speed electric multiple unit with maximum operation speed 370km/h and maximum test speed 400km/h, energy efficiently and environment friendly. At present, the d...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Scientific American
سال: 1877
ISSN: 0036-8733
DOI: 10.1038/scientificamerican03241877-1013asupp