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The life time of offshore wind farm is around 20 years. After that, the whole farm should be decommissioned which is also one of the main factors that contribute to the high investment. In order to make a cost-effective wind farm, a novel optimization method for decommission is addressed in this paper. Instead of abandoning the foundations after the wind farm is running out of its life cycle, the...
Understanding the way in which groups of cortical neurons change their individual and mutual firing activity during the induction of general anesthesia may improve the safe usage of many anesthetic agents. Assessing neuronal interactions within cell assemblies during anesthesia may be useful for understanding the neural mechanisms of general anesthesia. Here, a point process generalized linear model...
In this paper, we address the issue of tracking moving objects in the video sequence by a bionic system. In such a task, information collection and feature extraction are both the cores and difficulties which need to be of easy extraction and strong robustness to describe the object completely. We, inspired by the compound eye of mantis shrimps, analyze the special mechanism for motion tracking in...
As a branch of Group Decision-Making Method, Grade division plays an important role in many applications such as hazard assessment, quality evaluation, and performance inspection and so on. At present, the most popular grade division method is fuzzy comprehensive evaluation, which determines the decision objects' grade through analysis of evaluation vector. One problem with this approach is that it...
In this paper, the failure number of hydroelectric power equipments in the whole life is predicted based on Crow-AMSAA Reliability Growth model. Considering influence of preventive maintenance to failure rate, service age reduction factor E is introduced to adjust service year of equipment and the maintenance cost model of hydroelectric equipments in the life cycle is derived. The optimal preventive...
This article presents a multi-hinge compliant needle in minimally invasive surgery. This flexible needle has bevel tip and compliant hinges. The force acting on the bevel-tip surface can cause large turning curvature and turn angle. A feasible algorithm for path control of the needle thrusting is developed. A detail explanation of the algorithm is given. The main objectives of this algorithm are to...
By means of the ARCH (Auto-regressive Conditional Heteroscedasticity) and its modified models, this paper presents an empirical analysis of the volatility heteroscedasticity and the resilience to external shocks for China emerging stock market in the past three years based on the stock index of SSE180, SZSE40, Coal/Petroleum and Finance sectors. The results show that the fluctuation of SSE180 index...
In stock markets, the price is fluctuating around its average value with the time being. One of the volatilities is the variance heteroscedasticity. It is found that auto-regressive conditional heteroscedasticity (ARCH) model provides an alternative approach for the simulation of stock heteroscedasticity. In this paper, the application of ARCH and its modified models is presented for the risk analysis...
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