In recent years, more and more attentions are given to developing problem solving skills and using computer technology in the teaching and learning of mathematics. Case studies, independent projects, and examples of applications of mathematics are used more and more frequently in mathematics classes in order to enhance students’ development in mathematical thinking and problem solving skills. Two examples of such studies are presented in this paper.

Rough set theory is an effective approach to imprecision, vagueness, and incompleteness in classification analysis and knowledge discovery .Attribute reduction is a key problem for rough set theory. While computing reduction according to the definitions is a typical NP problem. In this paper, basic concept of rough set theory is presented, one heuristic algorithm for attribution reduction based on conditional entropy is proposed. The actual application shows that the method is feasible and effective.

This paper makes analysis on theories of D-S evidential reasoning, rough sets and extenics sets, the three of which hold similarities in defining uncertainty sets. It’s feasible to introduce relevant theories and methods of extenics into information fusion and a method of extenics fusion (MEF) is presented as well. The method combines extenic correlation function with Dempster method and is considered to be a good solution in solving evidence collision and BPA function in information fusion method basing on D-S evidential reasoning. With the difference of transfer functions, the paper designs a method of extenics fusion. The simulation test results show that MEF is better than the traditional D-S evidential reasoning and is applicable to all kinds of evaluation problems.

In this article, watermarking algorithm is studied using digital watermarking technology based on the discrete wavelet (DWT) multi-resolution decomposition algorithm. Three-level wavelet decomposition is employed so that images are divided into three serial sub-graphs with high frequency band and one sub-graph with low frequency band. Since low-frequency information is more sensitive to human eyes than high-frequency information, watermarking is embedded into the high-frequency coefficients of the wavelet image. In our experiment, watermarking information is embedded into the original images by Matlab simulation. Besides, salt and pepper noise, Gaussian low-pass filter, amplifying 200% after narrowing 50% attack as well as JPEG coding are used to test the algorithm. Results show that our algorithm is robust and the visual effect is satisfactory.

By learning advanced CDIO model of engineering education and analyzing the problem of traditional “Web Application Development” teaching, we try to apply CDIO model to the teaching of “Web Application Development”. Taking the projects as a vehicle, the article puts forward some concrete reform measures from organization of teaching, teaching methods and assessment mode etc. After practicing, we get an ideal result.

Multimedia college English teaching model has been used for some time in our college. Whether this model is welcomed by students is not known. This paper aims at researching the students’ attitude toward this model and students’ learning styles and demand on teaching. Students are not satisfied with the present multimedia teaching model. The results will arouse the consideration of college English teaching

Different from the traditional sense of self-study, this paper takes a new understanding of the definition and concept of autonomic learning. It brings forward the self-study mode called “target, design, implementation, and test”, and it raises the idea of establishing the platform of multimedia assistive autonomic learning so as to help the learners to fulfill a more efficient and motivating learning process. The case research is based on the intramural educating and learning website, and the evaluation is based on a comprehensive scoring system.

This paper describes using spectrophotometer and ARM in food safety detection system. Using the spectrophotometer as sensors will convert lead concentration and organophosphate pesticides concentration into optical signals. Data will be analyzed by ARM. This system can also complete photoelectric conversion, A/D conversion functions and complete light signal processing effectively. The hardwares are low prices, cost-effective, stable work, and easy to operate. This testing technology provides a reliable method for food safety detection.

The course of the environmental monitoring experiment is one of the important course in environmental science specialty. And it is also a compositive and practical required course. At present, there are some questions in the practical teaching of this course. Based on these questions, the experimental teaching model of three phases are put forward. That is, the course of the environmental monitoring experiment is divided into three training phases and carried out the teaching models of three phases. It was proved that this teaching model would be fit to develop the teaching quality, strengthenthe operational ability, shorten the adaptive time at working.

Microcomputer Principles and Applications is an important professional basic course for a series of electronic information specialty, involving hardware and software technology. From the perspective of the curriculum reforms, this paper has made detail measures of the reforms. We develop principles which should be grasped in the construction of network teaching resources, then give a reform idea that traditional teaching should be combined with modern multimedia teaching and network teaching, also some suggestions on teaching management process and cultivating comprehensive ability of the students.

EC is regarded as the wonderful way that retail enterprises sell its goods. Then it is not enough to absorb customer that picture and text are used in laying out merchandise. With the development of Web3D technology,In this paper, both Cult3D and Network management are applied to realize the function of displaying products in 3D condition, which take full advantages of network’s share and cult3d in interactive, file size and picture quality. So that customer can learn more about the product by interactive and personal need is satisfied by feedback information.

We present a testing approach which is a partially automated, partially manual inspection process that reports defects in C++ source code. In this paper we considered one of the faults type- uninitialized Variable- which the approach can detect. Uninitialized Variable is a common kind of error in programs written in C++, it often causes error result or system collapse. This paper analyses the classical C++ uninitialized variable errors, and describes a detecting method of uninitialized variable errors combining the advantage of ASI technology which based on static analysis.