Advanced Materials Research Vols. 108-111

Abstract: Some medical records are often added and deleted in the practical applications. The leakage of privacy information caused by re-publishing datasets with multiple sensitive attributes becomes more likely than any other publication styles. In this paper, we first systematically characterize the inference attacks and set the hierarchy sensitive attribute rules. Then we propose a novel privacy preserving model based on k-anonymity for re-publication of multiple sensitive datasets and verify the novel approach that can eliminate inference channel and effectively protect privacy information in re-publication of datasets with multiple sensitive attributes by specific example. Finally, we present the anonymization algorithm to achieve privacy against inference attack.

Abstract: In this article, the development of an autonomous robot trajectory generation system based on a single eye-in-hand webcam, where the workspace map is not known a priori, is described. The system makes use of image processing methods to identify locations of obstacles within the workspace and the Quadtree Decomposition algorithm to generate collision free paths. The shortest path is then automatically chosen as the path to be traversed by the robot end-effector. The method was implemented using MATLAB running on a PC and tested on a two-link SCARA robotic arm. The tests were successful and indicate that the method could be feasibly implemented on many practical applications.

Abstract: The purpose of this study was to develop a computerized and interactive number sense dynamic assessment system (CNSDA) on number sense to investigate the characteristics of elementary students’ performance. Number sense is the ability of awareness and reasoning for the relationships among the numbers embedded in the authentic context or situation. Around 150 fifth grade students were sampled. The results show that the adaptive hint system of CNSDA could promote the students’ number sense effectively. The correlation coefficients between CNSDA posttest and the Mathematic Computerized Adaptive Ability Test (MCAT) and the Computerized Estimation Test (CET) are higher than the static pretest. For the students with weaker number sense, CNSDA is a helpful learning and assessing resource.

Abstract: In the mobile environment, considering resource constraint, the frequent disconnect, synchronous data flow, the cost of communication, mobility and so on, combined with discrete Fourier transform (Discrete Fourier Transform, DFT) algorithm to facilitate time-domain and frequency domain conversion advantages as well as the genetic algorithm’s (Genetic Algorithm, GA) good global search capability ,this paper proposes a mobile data mining model which is based on the combination of Discrete Fourier Transform and Genetic Algorithm (DFTGA).

Abstract: In recent years, with the telecom competitive landscape changing and the communications technology developing, China's telecom market has shifted from the seller's to the buyer's. Moreover, the arrival of 3G is injecting vitality to China's information services. Series of industrial policies have triggered structure optimization and reorganization, but also made the Chinese telecom companies face the changing situation more various than ever. How to “victory in changing” becomes an urgent problem of decision-makers to explore and solve. As a new organizational mode, learning organization is considered as new trends for enterprise organization and management methods and ideal management mode in Era of knowledge economy. This paper based on level response theory of complex adaptive system, discusses the impact to the change led by “organizational knowledge”, expands “structure-relationship” to the “structure-knowledge-relationship” network theory , then proposes a hypothesis about three-dimensional constitute of organizational changes and builds adaptability evolution model for learning organization under the action in complex environment. Also we give a empirical research to statistically analyze questionnaires from different telecom companies and confirm the hypothesis according to the previous analysis. Finally, the strategies to improve the adaptability of telecom operators are put forward in order to maintain continuing power for development. The conclusion of this research has some significance as reference for those who try to improve the level of the adaptability of business organizations in the various changing environment.

Abstract: The necessity of establishing the risk test system, based on data of accounting, for safety resources invested in high dangerous enterprises is proposed systematically. The connotations and the features of the suggested risk test system of the safety resources are also demonstrated. This system can be used in all units with possible accidents in production and for estimating and reflecting the risks of the resources provided in preventing accidents in production. On the basis of the functions of this evaluation system, the main framework and the method of Data Envelopment Analysis for the risk test system is also established, which is accordant to actual data of accounting disclosed by high dangerous enterprises listed in stock market. The purpose of studying this system is to promote effective risk measurement and management of safety resources invested.

Abstract: For the depletion of the limited traditional energy and the deterioration of the living environment, it is a focus of attention of the word for utilization of clean and renewable energy sources such as wind, solar and hydrogen Energy. In this paper, the design of a robust voltage source grid-connected converter is developed. And it is used in a hybrid renewable power system (HRPS). The power electronic system and the control system are introduced. Finally, some experimental results of the system are presented.

Abstract: With the progress of our society, the consumer needs present a trend of individuation. Hence the manufacturing modes of many products change to individual character manufacturing mode, in which the producer should acquire the customer needs exactly and timely and translate them to high quality products. In this process, quality control plays a key role. This paper develops a quality control system, in which a synthetic process quality judging method against individual manufacturing is adopted. The method makes up the blemish of traditional SPC method and can work well even when it lacks enough data. The practical application of the system has proved its effectiveness and practicability.

Abstract: Based on the detailed analysis of site engineering geological and hydro-geological conditions for the proposed project Nanchang International Finance Center high-rise building, the dewatering design of this fundamental pit is proposed， in accordance with the surrounding environment as well as those pit design elements and so on. The three-dimensional numerical simulation model of groundwater for dewatering is also established. Using the three-dimensional groundwater numerical simulation software, Visual-modflow, the site is meshed into grid and the dewatering model is built under different well numbers and space. Al last, an optimal program (10 pumping wells for each pit and well equaling space) for this pit has been determined. It is also to simulate the water level vs. time during the dewatering. This does not only provide a strong basis for the optimum design of the foundation pit dewatering, but also provide a scientific basis for decision making to the underground construction.

Abstract: PID optimal parameters selection has been extensively studied, In order to improve some strict performance requirements for complex system. A new design scheme of PID controllers is proposed in this paper. This scheme is designed based on the IMC which is a kind of the model driven controllers. The internal model consists of the full model. The full model is deigned by using the quantum neural network. The PID control system is first constructed for the augmented system which is composed of the controlled object and the internal model. Simulation and experiment results show that the method outperforms the typical model-based approach despite its simplicity and it is therefore suitable to implement in distributed control system as well as in single-station controller.