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Based on the banded symmetric and Toeplitz matrix model for the mutual coupling of uniformly linear array (ULA), a reduced dimensional angle estimation and mutual coupling self-calibaration algorithm is proposed for bistatic MIMO radar. The new algorithm combines the angles with mutual coupling parameters but decouples them, which can provide accurate angle estimation without the knowledge of mutual coupling. In addition, the mutual coupling coefficients for array self-calibration can be achieved simultaneously. Instead of multidimensional search or iterative computation, the algorithm just uses a one-dimensional search, so it can reduce the computational cost. The correction and efficiency of the proposed method are verified by the computer simulation results.

Various electronic equipments and control devices being used in the vehicle, the communication in network of different bus protocols becomes more important. This paper introduces a new method of conversion to achieve the ZigBee communication with CAN bus, realizing the link of CAN bus and wireless network. In order to conquer the illogicalities or conflictions brought from bus configuration and protocol of various controllers, Philips SJA1040A CAN transceiver and 32 bit MCU are used to constitute a CAN brainpower node, Freescale MC13202 ZigBee transceiver is integrated to manage the ZigBee wireless network, identifying the network topology and adding/removing the nodes. The system could realize data communication between the distributed ZigBee points and CAN bus fleetly and exactly, as well as simple configuration. This converter has certain applied value in intelligent control and user friendly design of car wireless.

To solve the misjudgment of noise and vein information in features extraction from low quality images, a novel method based on LWF (Linear weighting function) immune-clone algorithm is proposed in this paper. The method can produce initial antibody by using adaptive threshold method, obtain weighting function by curve fitting, and denoise and enhance border by linear weighting of the vein area. The function of affinity and concentration of antibodies helps to boost the growth of the vein information and suppress the interference of noise. Simulation results show that compared to other algorithms, finger vein pattern extracted by the algorithm proposed in this paper is more distinct and accurate. In addition, this algorithm, which can effectively retain the details of information, is especially suitable for features extraction from low quality finger vein images.

It is of crucial importance for any construction company to be able to deal successfully with various bidding situations. This paper offers a multi-criterion evaluation approach for contractors to selecting which contracts to bid for. As is generally accepted, bidding decisions can be divided into two consequent stages as bid/no bid and mark-up decisions, and the paper is of no exception. In bid/no bid analysis, a set of criterion is established considering the short-term and long-term effects brought by the project. The criteria include expected profit, productivity enhancement and long-time growth, which are further divided respectively. A fuzzy set approach is adopted to deal with imprecision or vagueness. Through a case study, the approach proves to be practical and can serve as a basis for determination of appropriate mark-up level.

The losses of power transmission and distribution reach up to 7% of electric power output in our country, which decrease the electric utilization ratio and cause enormous waste of electrical power. As a great energy consumer in transmission and distribution industry, it has been urgent affairs to reduce transformer losses for our energy-saving work. With the development of transformer manufacturing technology, amorphous core transformers have replaced present massively-used SII and the under series of transformers, which have become a hot subject discussed in the field. This paper, based on theoretical analysis and TOC, systematically and thoroughly diagnoses the energy saving potential of Nanning transformers through investigating the transformer service conditions in 6 counties and 6 districts in Nanning and offers data support and decision basis for the government's large scale extension of amorphous core transformers.

Chinese government has been propagandizing energy- efficient residential buildings for more than 20 years, but the progress is unfortunately not satisfactorily smooth. One and most important reason is the lack of incentives to energy-efficient residence for both consumers and developers. This paper discusses the features of the residence market at present in China, analyzes variables influencing consumers' and developers' decision-making on energy-efficient residence, puts forward measures the government can take to tackle market failures. Considering the complex interactions among consumers' choices, developers' choices and government-issued policies, a system dynamics model is established to explore the mechanism of the market. This model could be used to simulate the growth of the energy-efficient residence market and predict the responses of consumers and developers to certain economic policies, so as to enhance the policies' reasonability and practicability.