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This work demonstrates the double-stacked nanosheet (NS) p-channel vertically junctionless field-effect transistors (VJ-FET) with gate all around (GAA) structure. The stacked NS device shows superior electrical properties, including high Ion/Ioff ratio $(> 10^{8}$ , subthreshold slope (SS) $=100\mathrm{mV}/\mathrm{dec}$ , and normally off at $\mathrm{Vg}=0\mathrm{V}$ . More, this work also discusses three different gate structure in electrical properties. The 3D TCAD simulation is applied for analysis of physical characteristics of the proposed devices.

In the era of big data, the hybrid storage platform with structured data, semi-structured and unstructured data is the fundament of data analysis. The classical method of data processing system extensions requires high cost, and Hadoop and MapReduce does not perform well in real-time analysis. First, we propose a data access method in hybrid storage architecture, then we propose a solution of hybrid storage based on Hadoop, it includes the exchange platform of HDFS data, multi-node management control structure, and a method of file transfer based on FTP, etc. According to our experimental results, the solution of hybrid storage we proposed improve the efficiency of data exchange, enhance the performance and reliability of Hadoop cluster.

In this study, grey relational analysis method is applied to research the relation between the development of common senior high school and some influencing factors, such as macroscopic economy, educational budget, and population. Then, a grey dynamic predict model, GM(1,1), is constructed. Using this grey predict model, we forecast four indexes about the development tendency of common senior high school in the end of the eleventh five years plan and in the period of the twelfth five years plan. Those four indexes indicate the common senior high school education absolute size, relative size, quality and enrollment ratio. From those predictive indexes, we can know the teacher's need and the funds need. This article tries to find a new way different from traditional method to study education problems and provides scientific basis for educational management.

Based on the development of computer network curriculum, it is necessary to implement curriculum development reform to strengthen the practical teaching. Then discusses the organization and system structure of the practical courses, and gives the practical tache implementation. Finally, introduces the implementation results of computer network practical teaching in our school.

Current application-driven demands are bringing us closer to the multirobot system which is on a larger scale and more complex However, most of the existing methods of task allocation for multirobot system ignore the inherent characteristics that complex tasks might have, taking the tasks as some can not be decomposed any more. A kind of complex tasks are depicted by limited task tree in this paper, and a complex task allocation algorithm based on market and limited task tree for multirobot system is presented. At the expense of increasing the solution cost a little bit, computation time is decreased greatly by restricting the decomposition. Experiment results show that this algorithm can achieve loosely-coupled task allocation quickly in multirobot systems in a wholly distributed way.

Digital watermark for the protection of intellectual property rights has shown significant commercial value, but there are still some insufficiencies in the digital watermarking system in the theory and the means of realization. In this paper, we proposed a scheme based on the fingerprint watermark, and try to introduce biometrics in the watermark system. We wish to integrate the digital watermarking technology with the fingerprint identification technology. The scheme depends upon the spatial domain, DCT domain of multi-bits embedded watermark methods to embed and extract the information of the fingerprint characteristic, and it is better to extract the simplicity in the robustness and embedded method. The experiment has showed that the scheme is feasible and effective.

Quantization index module is a normal type of information hiding scheme, but the Steganalysis methods are not accuracy enough to detect them. A novel steganalysis method is proposed on the basis of center limitation theorem. One concise statistics is constructed to detect this kind of steganagraphy algorithms. A DCT-based image steganographic method which is recently advanced as resisting statistical attack is studied and the experimental results indicate that this technology is applicable for the detection of the quantization index module embedding algorithm.