The course of non-linear electronic circuit is very theoretical and practical. Combined with teaching practice, in this paper we have summarized some experiences about the course of non-linear electronic circuit and p...
详细信息
The course of non-linear electronic circuit is very theoretical and practical. Combined with teaching practice, in this paper we have summarized some experiences about the course of non-linear electronic circuit and proposed some advice for the teaching model and methods. We also have proposed the reform of teaching methods of the practice instruction of non-linear electronic circuit subjects according to the circumstances and needs of university.
With the development of information technology, the domain name system(DNS) has become a very popular application. DNS forms the logical backbone of the World Wide Web, and the service which the DNS provides is used o...
详细信息
ISBN:
(纸本)9781784660543
With the development of information technology, the domain name system(DNS) has become a very popular application. DNS forms the logical backbone of the World Wide Web, and the service which the DNS provides is used on the order of a trillion times a day. DNS security has garnered quite a lot of interest, due to the DNS cache-poisoning attacks discovered by Dan Kaminsky. In this paper, a security method for domain name resolution on the client side is employed to detection the security of the DNS protocol, especially when it is under DNS cache-poisoning attacks. At first, the framework of this method is given and then the whole process of mathematic analysis is proposed. The initial results on mathematic analysis are also proposed in this paper. Through the experimental results it can be seen that the security method for domain name resolution on the client side is useful for protecting DNS attacks.
Indonesia has abundant natural resources in agriculture. Good agricultural results can be obtained by determining a good growing season plan. One of important factors which determines the successful of crop is the len...
详细信息
Indonesia has abundant natural resources in agriculture. Good agricultural results can be obtained by determining a good growing season plan. One of important factors which determines the successful of crop is the length of the rainy season. The length of the rainy season is dynamic and difficult to be controlled. Therefore the planning of the growing season becomes inaccurate and cause crop failures. This research aims to develop a model to predict the length of the rainy season using time delay neural network (TDNN). Observational data used in this research is the length of rainy season from three weather and climate stations of the Pacitan region from 1982/1983 to 2011/2012. Predictor data used in this reserach is sea surface temperature (SST) derived from the region of Nino 1+2, Nino 3, Nino 4, and Nino 3.4 from 1982 to 2011. Model with the best accuracy was obtained by Pringkuku station with RMSE of 1.97 with parameters of delay [0 12 3], learning rate 0.1, 40 hidden neurons, and predictors of Nino 3 and R-squared of 0.82 with parameters of delay [0 1], learning rate 0.3, 5 hidden neurons, and predictors of Nino 3.
Block-grained snapshot management is a requirement for emerging instant disaster recovery systems that generally use on-demand data fetching *** paper presents Bird Store,an efficient block-grained snapshot management...
详细信息
Block-grained snapshot management is a requirement for emerging instant disaster recovery systems that generally use on-demand data fetching *** paper presents Bird Store,an efficient block-grained snapshot management *** snapshot version is difficult to organize due to multiple disk IOs that are needed to query the snapshot version of each *** Store reduces disk IOs by grouping blocks sharing the same backup history into a *** disk IOs are issued once per segment instead of once per *** shows that Bird Store's algorithm is 33.5 times faster than the existing algorithm,and is very storage-efficient.
In order to solve the problem that more spare time but less rational time arrangement for college students,a study specification named eight-hour study mode is *** requires students to ensure an average of eight hours...
详细信息
ISBN:
(纸本)9781629939797
In order to solve the problem that more spare time but less rational time arrangement for college students,a study specification named eight-hour study mode is *** requires students to ensure an average of eight hours per day and forty hours per week as basic study time.A key concept lesson ratio according to the characters and learning curve of lessons is also *** can guide the students to schedule their study time *** eight hours study mode is conducive to university students finish their training objectives faster and better through independent study under the credit system.
In this paper, we propose electric circuit learning system tools for generating problemsusing a Web-Browser. The proposed system can be used to easily generate electric circuit problemson a Web-browser and without usi...
详细信息
In this paper, we propose electric circuit learning system tools for generating problemsusing a Web-Browser. The proposed system can be used to easily generate electric circuit problemson a Web-browser and without using any programming languages. Moreover, since circuit elementvalues can be set randomly, students have to solve problems by themselves. In the proposed system,since each lecturer can generate problems, an E-leaning system can be used in conjunction withvarious curricula.
With the smart phones and tablet PC popularity, mobile learning is gradually moving towards families, communities and schools. This paper studies a mobile learning system based on a campus network. By mobile learning ...
详细信息
ISBN:
(纸本)9781784660543
With the smart phones and tablet PC popularity, mobile learning is gradually moving towards families, communities and schools. This paper studies a mobile learning system based on a campus network. By mobile learning embedded into an existing campus teaching network, we can integrate traditional learning and mobile learning, then construct a mobile learning platform based on the campus network. The paper describes the principles and architecture of a mobile learning system and details the system's functional modules. Then we take the pressure and delay experiment, which testify that the system can satisfy a user's concurrent access and achieve the expected development goals.
The dynamic properties of rock bolts are characterized by *** acceleration and strain of a rock bolt specimen were recorded using axial impact testing in laboratory *** system's dynamic properties such as natural ...
详细信息
The dynamic properties of rock bolts are characterized by *** acceleration and strain of a rock bolt specimen were recorded using axial impact testing in laboratory *** system's dynamic properties such as natural frequencies and damping are characterized by using spectral analysis and Wavelet *** characterized dynamic properties are used to update and calibrate a system simulation model,which is a multiple-degree-of-freedom system involving roof mass,the roof bolt,grout interface and head *** proposed approach enables accurately and effectively quantifying system dynamic parameters and establishing the analytical model for the design,development and performance monitoring of roof bolting systems.
In the article are presented as figures numerical data calculation of the basic thermodynamic variables such as dependence of the thermodynamic potentials from the temperature and pressure,and the geometric characteri...
详细信息
In the article are presented as figures numerical data calculation of the basic thermodynamic variables such as dependence of the thermodynamic potentials from the temperature and pressure,and the geometric characteristics of the dynamics like the center of mass of trial *** dynamics is described by a simple Euler discretization of family of vector fields arising in the Bogdanov-Takens bifurcation.
During learners use instructional software to acquire, process, obtain knowledge, the voice plays a enormous roleUnfortunately, the interface design and the teaching of design almost completely ignore the voice of the...
详细信息
During learners use instructional software to acquire, process, obtain knowledge, the voice plays a enormous roleUnfortunately, the interface design and the teaching of design almost completely ignore the voice of the designBecause of advanced science and technology, voice integrated into instructional software will be possibleBased on the characteristics of sound in instructional software, This article quotes *** and Ward Mitchell Cates' sound design model, raise instructional software design strategy for our students, and improve the system of multimedia.
暂无评论