Advanced Materials Research Vols. 271-273

Abstract: An SEIR epidemic transmission model is formulated under the assumption that the force of infection at the present time depends on the number of infectives at the past. It is shown that a desease free equilibrium is globally stable if no epidemic equilibrium point exists. Further the epidemic equilibrium (if it exists) is globally stable in the who;e state space except the neighborhood of the desease free equilibrium.

Abstract: Practical teaching is a very important practical instructional segment in the period of undergraduate course of geotechnical engineering. With the rapid development of higher education, the university with distinctive features is attracted more attention. Mining is our university feature, the Status and Problems of graduation fieldwork in geotechnical engineering are analyzed; the practical teaching experience in reform in recent years is introduced; the reforms on fieldwork methods, guidelines and practical content of the geotechnical engineering are made the bold attempt, and its using in the sessions of the graduation students proved that the idea of reform is correct, guidelines is accurate and measures is appropriate, and graduation fieldwork effect of geotechnical engineering as "mining" characteristics is improved.

Abstract: The algorithm of anomaly detection for large scale networks is a key way to promptly detect the abnormal traffic flows. In this paper, priori triggered BP neural network algorithm(PBP) is analyzed for the purpose of dealing with the problems caused by typical algorithms that are not able to adapt and learn; detect with high precision; provide high level of correctness. PBP uses K-Means and PCA to trigger self-adapting and learning ability, and also, it uses historical neuron parameter to initialize the neural network, so that it use the trained network to detect the abnormal traffic flows. According to experiments, PBP can obtain a higher level of correctness of detection than priori algorithm, and it can adapt itself according to different network environments.

Abstract: With the development of information technology, multi-media teaching has been applied widely in various colleges and institutions. In the classroom teaching, the teachers must utilize the remote control device to operate the computer and use body movements. In this paper, a kind of multi-function laser remote control pointer is designed, which can be used as a mouse without power consumption and operation platform., and then teachers can shake off the shackles of the computer and remote control the computer anywhere in the classroom. In this way, teachers can present the lecture through the computer and at the same time make full use of their body language and personal charm.

Abstract: In this paper, we introduce a new bit-flipping decoding algorithm for low-density parity-check codes based on loop detection mechanism, which is an extension to soft-decision decoding. This decoding algorithm's performance has been significantly improved by introducing a loop detection mechanism for the failed flipping bit and leading into the soft-decision about the reliability measure of the received symbols. Theoretical analysis shows that the complexity of this algorithm is lower. Some simulation results are given, which show that compared with other known kinds of bit-flipping decoding algorithms for LDPC codes, this new decoding on the additive white Gaussian noise channel offer excellent performance.

Abstract: Decoding algorithms with strong practical value not only have good decoding performance, but also have the computation complexity as low as possible. For this purpose, the paper points out the modified min-sum decoding algorithm(M-MSA). On the condition of no increasing in the decoding complexity, it makes the error-correcting performance improved by adding the appropriate scaling factor based on the min-sum algorithm(MSA), and it is very suitable for hardware implementation. Simulation results show that this algorithm has good BER performance, low complexity and low hardware resource utilization, and it would be well applied in the future.

Abstract: With the popularity and the development of computers and building electronic industry, people demand for higher living environment at quality. As a result, intelligent residential estates become both an important investment point of developers, and another hot spot people purchasing houses. while choosing their house, people not only think of meeting their basic living demands, but also pay much more attention to the advanced concepts such as green, environmental protection, energy saving, intelligent control etc. This article discussed the application of intelligent residential design in the aspects such as the intelligent safe guard system; Information management system; intelligent household system; property management system, and expounded its living effect synthetically. The discussion about the above several aspects can give people a relatively rational knowledge of intelligent residence, promoting the development of the intelligent residence, healthy and orderly.

Abstract: This article first elaborates Huaiyang Clay Dogs through their historical and cultural background as well as species classification, analyzing their modeling concepts: with reproduction worship as the main line, warding off evil and ensuring peace for the assistance, and auspicious for the embellishment. On this basis, the article makes further analysis of Huaiyang Clay Dog’s modeling techniques such as common image and structure, complex proliferation, overstated shape-changing, ideographic symbol, combination of painting and sculpture, interpreting the modeling implied meaning of Huaiyang Clay Dog and putting forward the research concept that advocates a combination of Modeling techniques and moral. By researching modeling moral and practices of the Huaiyang Clay Dogs, the rich implication this kind of folk art will be further excavated, promoting traditional culture.

Abstract: This paper advocates the humanism design for children room, proposing "soho and personalized" design concept. Its purpose is to explore the reasonable design patterns for children room , to pay full attention to humanity, and to improve children's living space, making children’s behavior and the room space function coordinated, and creating an attractive interior living space environment which can satisfy children’s needs.

Abstract: Modern science contains a rich and profound content, each subject contend, overlapping and fusion, coruscate the strong vitality. The related contents are in the platform based on modern physics, It aims to explore the definition, characteristics, contents of modern scientific platform, and establish the platform to serve nature and society.