Applied Mechanics and Materials Vols. 543-547

Abstract: Aerodynamic analysis and calculation are very important parts in the aircraft design, and aerodynamic engineering prediction is widely used in the aircraft preliminary design stage. However, traditional aerodynamic engineering prediction causes heavy computation and is time-consuming. The developed software such as DATCOM has the disadvantages of complicated operation and black box structure. To overcome the disadvantages above, we develop the software for aerodynamic engineering prediction based on the aerodynamic characteristics and prediction for aircrafts. There are three parts in this software which are database, calculation module and user interface. The software is verified by a numerical example of one aircraft, and compares with the data of Computational Fluid Dynamics (CFD) and the wind tunnel test. The results show that the calculated results of the aerodynamic engineering prediction and CFD are basically consistent, and the software is able to meet the accuracy demand in the preliminary design phase of the aircraft.

Abstract: Object-oriented method has been carried on the deep philosophical thinking, starting from thinking mode in combination with the real things, so the mapping relationship between real things and Object-oriented Programming is expounded, the essential feature of Object-oriented Programming is revealed. The objectivity, adaptation, complexity and emergent property of Object-oriented Programming whose intension and extension are enlarged are investigated, at this time, its own development direction is specified. The paper explores Object-oriented Programming from the epistemological and methodological perspective, establishes a theoretical foundation for its scientific practice activities.

Abstract: A cluster-based network topology enables the efficient utilization of the limited energy resources in network; based on multi-hop clustering model, the unequal routing protocol can lead to uniform energy dissipation among the cluster head and achieves some improvement on the network lifetime. However, the bottleneck zone, where the energy of the nodes closer to the Sink is depleted quickly, still limits the network lifetime in some cases; especially the collecting data cant be compressed. In this paper, a Hybrid transmitting protocol for Unequal Cluster-based Routing WSN(H-UCR) was proposed, which combined single-hop and multi-hop transmission is implemented to balance the energy dissipation among the entire network. Simulation results demonstrate that our proposed approach is effective in balancing the energy consumption and prolonging the network lifetime.

Abstract: Through the integrated application of Library information system and campus culture of Guangxi colleges as well as the research of Guangxi colleges serving developments of China-ASEAN, and Guangxi Beibu Gulf economic region, this paper provides solution of integrated construction of college campus culture and library information system on informatization condition. In the system of college campus culture construction based on perspective of Gungxi colleges, college library information resource is used as medium to integrate into cultural connotation serving regional economy on the basis of knowledge architecture, with applications of Internet, computer telecom integration technology as well as IVR and TTS technology, communication tools commonly used by college students and teachers are adopted as informatization approaches, concept identification system, activity identification system, visual identification system, subject and specialty service system, environment and culture planning system and other unified information general culture systems are established, and e-mail, voice message, short message, WAP, real time communication, web, VoIP and other campus culture interactive measures are realized. The reconfigurable analysis of aggregate diagnosis flow proves the integrated construction of campus culture and library unified information is feasible.

Abstract: Grid system has secure requirements of confidential communication, data integrity and non-repudiation. According to the secure requirements for Grid service, the paper proposed an identity-based encryption scheme for Grid, which can solve a series of problem: the privacy of data transmission, validation of integrity of data, key update after long run time and non-repudiation. The scheme is constructed by bilinear paring on elliptic cures and its security can be reduced to the computational Bilinear Diffie-Hellman assumption. Finally, the authors analyses the security and efficiency of this scheme.

Abstract: From the perspective of users experience and starting from the users emotional experience, it particularly analyzes the interactive need of user to smartphone and interactive design of smartphone. Take a specific research case of iPhone and specifically analyze the emotional experience in the interactive design of iPhone, as well as elaborately analyze specific functions of emotion in the interactive design of iPhone.

Abstract: In this paper, discusses the design and realization of large file asynchronous upload and Broken-point continuingly-transferring based on ASP.NET MVC. At the first, brief review the traditional upload method based on HTTP(Hypertext transfer protocol) protocol and ASP.NET(C#), point out the existed malpractices, while introduce the basic principles of asynchronous upload and broken-point continuingly-transferring, and in-depth analysis of the design and realization of the function of asynchronous upload and broken-point continuingly-transferring in ASP.NET MVC.

Abstract: Because the attributes of the network data become more and more complex, the useful clustering attributes are increasing greatly. The traditional network data clustering algorithm is sensitive with the initial center of the network data clustering which cause the operation efficiency of the algorithm is quite low. This paper proposes a kind of network data fast clustering algorithm based on fuzzy processing model. The algorithm solves the issue of fixed center in the traditional network data clustering algorithm. The experiment illustrates the algorithm has better clustering accuracy and the convergence speed is quickly.

Abstract: To date, network security analysts depend only on some network secure products to study large amounts of log information as to analyze and cope with network anomalies. With dramatic increase of network data volumes, diversities of attack types and more complexity, the traditional analytical means are no longer effective. How to enable those analysts to quickly figure out network status by advantage of cumbersome high-dimensional data information has become a critical concern in the field of network safety. Here it develops a visualized technique for detecting network safety information by port scanning. After the analysis of network data packets and the use of information visualization technique, the visualized port scanning and detection system ScanViewer is designed and developed. The experiment reveals that it can detect slow scan, distributed scan, various TCP stealth scan and so on. With the method, people have got out of helpless embarrassment by the weak scan.

Abstract: Since the boot code locates in the bottom of embedded system, so the design of boot code is the key technology and the important steps of system development during the development process of embedded system. Although the boot code supporting new framework has been updating, the boot code of manufacturer giving is an old version of a few years ago in the current market popular embedded products. So this paper analyzes the U-boot code commonly used and in the popular in detail, combining with the startup process of embedded Linux system, then, this paper gives a process, transplanting the new version of U-boot code using the UT6410 as development platform. On the basis of completing the basic function transplantation, this paper adds the network card and DNW. Experiments show that the new version of transplantation can run smoothly, and improve the efficiency of the system.