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As one of the major crops in China, the winter wheat production is directly related to the national economic development, the social stabilization and the food security. Normalized difference vegetation index (NDVI) time series has been widely used in crop identification, while most of the present researches about NDVI time series focused on moderate or low resolution remote sensing images, which...
The new structure of muffler in simple expansion chamber muffed was designed in this paper. On the base of standard GB/T4760–1996, the testing rig was made to lower exhaust back pressure and reduce engine power consumption, and then three muffler prototypes were manufactured. Comparative analysis is done aim at some parameters, such as the acoustic pressure level of input and output, the sound pressure...
This paper examines the application of state-space model (SSM) to the modeling of energy demand in China. The data used in the paper includes China's aggregate energy consumption, economic growth rate, energy price, energy structure, industrial structure and aggregate population, which covers the period from 1991 to 2009. The result shows that: for energy demand, in different periods, the effects...
Aiming at the robot problems such as little relevance, low accuracy of the simultaneous localization and map building (SLAM) and easy locking, lack of initiative of the navigation system, the multi-sensor vision system is introduced, and then unifying the data of each sensor by world coordinate system of global calibration based on the local calibration of each vision sensor module, a serial of local...
Base on fuzzy decision algorithm, a multi-agents cooperation strategy for the soccer robot is presented to overcome the difficulty in establishing a precise model for the decision-making subsystem of robot in the case, when robot player is in dynamic environment, and the applied condition and computing course are given. The battle formation and the role of each robot can be changed dynamically depending...
Self-inverting exhaust muffler is an active control muffler based on acoustic interference principle. Compared with the passive exhaust muffler, the exhaust resistance of self-inverting exhaust muffler is smaller. Therefore, the engine power loss is smaller. Compared with the active exhaust muffler, the electric power loss of self-inverting exhaust muffler is smaller and structure is simpler, so that...
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