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With recent emergence of pen-based and touch-based input surfaces, it now becomes more feasible to input chemical expressions directly by handwriting, which is in fact more natural and efficient. In general, chemical expressions can be written in either molecular or structural format. However, it is typically more difficult and challenging to directly take structural chemical expressions as input...
From the aim of water resource input-output analysis in the development of industry, the paper designs a maneuverable method to tabulate the water resource input-output table, by redefining the water resource. Then the models of direct water use coefficient, total water use coefficient and water use multiplier are established on the basis of water resource input-output table. At last, the models are...
Venture enterprise is the product of venture capital and high technology with the characteristic of both high risk and high revenue distinguished from other common enterprises. Therefore, those conventional methods of assets evaluation fail to demonstrate the authentic value of the venture enterprise. This paper, from the perspective of auction mechanism design, provides a new method to fix the real...
Innovation is deemed as the drive of society development, and the diffusion of the innovative technology accelerates the advancement. High-tech enterprise, as the carrier of new technology, plays a crucial role in the diffusion process. Based on high-tech enterprise, this paper creates a closed-loop feedback mechanism to analyze the innovative technology diffusing process. The control theory is applied...
This paper proposes an AC current sensorless control strategy for a PWM rectifier under the unbalanced source voltage. In the unbalanced system, if we use the traditional control scheme, it will yield large input current harmonics and dc-link voltage ripples due to the effect of the negative components. Meanwhile, in the ordinary control methods, at least two current sensors are needed to test the...
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