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991.
The paper describes the development of a software design aid for use at the conceptual stage of engineering design. It is intended for use in the design of mechatronic products but has wider potential uses. Early approaches were based on function structures and tables of options and the system that evolved allows the assembly of schemes linked by matching their input and output ports. A database of components is provided which can be accessed via different indexes and the designer can easily create and compare alternative schemes at the concept stage.A bond graph approach is used to define the interconnections between components. This allows correct port matching but also provides for future development such as constraint propagation through the design and links to simulation tools. 相似文献
992.
993.
Bahl L.R. de Souza P.V. Gopalakrishnan P.S. Kanevsky D.S. Nahamoo D. 《Signal Processing, IEEE Transactions on》1992,40(11):2814-2816
A method for identifying a set of candidate words that matches well with a given utterance is discussed. The method uses precomputed groups of acoustically similar words. Given a vocabulary, for each word a short list of words that are acoustically similar to it is computed. These groups are constructed using training utterances recorded by several speakers and used in an isolated utterance recognition system to construct candidate word lists during recognition. Experiments show that the correct word appears on the short list of candidate words constructed during recognition using this scheme over 98% of the time 相似文献
994.
Yi-Min Wang Hua Lee Dipali V. Apte 《International journal of imaging systems and technology》1992,4(3):201-206
The matrix pencil (MP) method, based on the singular value decomposition (SVD), is applied to quantitative NMR spectroscopy. Its relationship to other SVD-based methods is also presented. Simulations and applications are given to demonstrate the capability of superior performance.©1993 John Wiley & Sons Inc 相似文献
995.
Institute of Rock Mechanics, Academy of Sciences of the USSR, Moscow. Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 1, pp. 39–44, January-February, 1992. 相似文献
996.
Ivasashin O. M. Markovskii P. E. Dneprenko V. N. Boguslaev V. A. Nalimov Yu. S. Gerasimchuk O. N. 《Strength of Materials》1992,24(6):391-397
The influence of the structure and crystallographic texture of VT3-1 alloy formed by thermomechanical processing of a forging and also of the production factors of subsequent production of a gas turbine engine blade from the forging on the fatigue resistance characteristics was investigated. It was established that the reason for the reduction in fatigue limit and the significant spread in test data is nonuniformity of the structure and texture, both in different forgings and within the same forging, caused by variations in such parameters of thermomechanical processing as the temperature and degree of deformation. The nonuniformity plays a determining role in the reduction in fatigue limit as the result of hydrogen absorption during chemical etching. It was shown that such an effect may be eliminated by degassing vacuum annealing and the general level of fatigue resistance characteristics may be increased as the result of thermomechanical processing of forgings with strict observance of the specified forging temperature.Translated from Problemy Prochnosti, No. 6, pp. 12–19, June, 1992. 相似文献
997.
998.
G. A. Sirenko R. V. Sorokatyi O. M. Khryashchevskaya 《Chemical and Petroleum Engineering》1991,27(4):227-229
Translated from Khimicheskoe i Neftyanoe Mashinostroenie, No. 4, pp. 32–33, April, 1991. 相似文献
999.
1000.
S. A. Zhdanok V. V. Martynenko S. I. Shabunya 《Journal of Engineering Physics and Thermophysics》1992,62(1):76-81
Academic Science Complex, A. V. Lykov Institute of Heat and Mass Transfer, Academy of Sciences, Belorussia, Minsk. Translated from Inzhenerno-fizicheskii Zhurnal, Vol. 62, No. 1, pp. 95–101, January, 1992. 相似文献