Time filter

Source Type

Liang W.,Beijing Institute of Education | Yu S.,Beijing Normal University | Long T.,University of Tennessee at Knoxville
IET Conference Publications | Year: 2011

As an emerging mobile terminal, tablet computers have begun to enter into the educational system. For better understanding the application and people's perspectives of the new technology in K-12 schools in China, a survey was conducted to investigate tablet computer's application, user's perspectives and requirements among K-12 students, teachers and educational administrators in urban areas in China. The findings of the study showed that people still need deeper understanding of the new technology's application in K-12 education. In addition, this study stated that in order to introduce tablet computers into K-12 education, more attention should be paid to the comprehensive design of the whole educational system, including the design of the learning support system and instructional strategies, as well as the design and development of educational software and resources. Source

Zeng W.,Beijing Normal University | Feng Q.,Beijing Institute of Education
Proceedings - 2010 7th International Conference on Fuzzy Systems and Knowledge Discovery, FSKD 2010 | Year: 2010

In this paper, we introduce the concepts of Sh-interval valued fuzzy left ideal, Sh-interval valued fuzzy right ideal, S h-interval valued fuzzy ideal and extension principle of interval valued fuzzy set, investigate some properties and propose some theorems for homomorphic image and its inverse image on Sh-interval valued fuzzy ideal. Finally, we investigate some properties on character of S h-interval valued fuzzy left(right) ideal. ©2010 IEEE. Source

Lei-Ming,Civil Aviation University of China | Zan-Yuping,Beijing Institute of Education
IET Conference Publications | Year: 2014

FLASHGET is a well-known and typical downloading application which belongs to P2P categories. It makes sense to identify and control its protocol accurately. However, it cannot be analyzed by using conventional methods because the process of its downloading is encrypted. For cryptographic protocol, a technique based on protocol reverse engineering was proposed. This method is used by reverse analytic tools to reverse out decryption functions to obtain the structure of protocol and the meaning of encrypted field, and then interferential packages could be constructed, as well as the FLASHGET protocol could be controlled by the bypass interference. The experimental results show that this method can identify and control FLASHGET effectively. In addition, the method also provides a reference to other similar P2P downloading protocols. Source

Liu X.,Hebei United University | Feng Q.,Beijing Institute of Education | Zhang Y.,Hebei United University | Li Y.,Hebei United University
Lecture Notes in Electrical Engineering | Year: 2013

Independent College is a new school model of Higher Education in our country, how to train students to adapt to the needs of society is its urgent problem. From the practical teaching, this paper analyzes the current situation and point out the problems on Probability theory and Mathematical Statistics in Independent Colleges, and proposes a solution to optimize the teaching methods, including case teaching method, mathematical modeling, multimedia teaching, hierarchical teaching and Analogy teaching method. All this methods want to change the mode of purely mathematics teaching and guiding the students to solve statistical problems around, so as to stimulate students' interest and motivation in learning, to laying a solid foundation for the study of specialized courses. © 2013 Springer Science+Business Media. Source

Wang H.-R.,Beijing Normal University | Lin X.,Beijing Normal University | Liu Q.,Beijing Normal University | Feng Q.-L.,Beijing Institute of Education | Liu C.-M.,Beijing Normal University
Xitong Gongcheng Lilun yu Shijian/System Engineering Theory and Practice | Year: 2010

The ergodicity analysis of temperature variation is significant for medium and long-term weather forecast. The ergodicity of the month-highest temperature, month- lowest temperature, and month-average temperature in Beijing was discussed in this study. Firstly, each kind of temperature was clustered applying the systematic clustering method by taking a month as the individual. Based on this, autocorrelogram was used to eliminate the periodicity series and ADF (Advanced Dickey & Fuller) was employed to test the stationary of the rest series. And then, ergodicity analysis was carried out to the series that had passed the stationary test, including mean ergodicity and covariance ergodicity. The results obtained from the above steps show that the month-highest temperature series of June, July and August has the mean ergodicity; the lowest temperature series of April and October has the progress ergodicity. For the long period, the two kind temperature series fluctuate around the mean temperature. For the lowest temperature of April and October, the temperature of the former time unit has a relatively stable impact on the latter time unit. At the end of this work, confirmation and further dig analysis also were carried out. The study results of former researchers were validated from the perspective of ergodicity in this study. Source

Discover hidden collaborations