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Acceleration and deceleration of the AS/RS machine in automated storage and retrieval systems are considered in this paper instead of uniform speed, and there are curve channels in the warehouse. Based on the above hypothesis, the time function and distance function are studied in this paper. The distribution function of the distance and time is given. On this basis, the expected travel time of the...
By the panel data of 31 provinces in China from 2001 to 2008, this paper analyses the influence of basic factor of production and environmental on the regional innovation. The results show that it is very important to improve the regional innovation capability from the angle of R&D investment, raising the level of research personnel and enhancing the infrastructure construction. At last, according...
To overcome the shortcoming of the methods of the real estate investment risk assessment used today, which usually fail to solve the high-dimension data, an improved PPC model was proposed. By using the Projection Pursuit based on real-coded genetic algorithm, the method evaluates the merits of the investment programs. The real-coded genetic algorithm was applied to finish the global optimization...
The main purpose of this study is to construct a suitable research and development (R&D) decision model which would facilitate the analysis of optimal stopping and investment strategy with mixed uncertainty of randomness and fuzziness in R&D project. In classical R&D decision models,the inter-arrival times between jumps are usually assumed as random variables which are exponentially distributed...
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