Advanced Materials Research Vols. 183-185

Abstract: With the continuous development of Internet technology, the modern means of education based on computer network technology have been enriched constantly, and are unconsciously influencing the traditional classroom model of teaching, and have achieved very significant achievements in practical teaching. However, due to network access restrictions, all kinds of modern means of education have been greatly limited in the application process, and the popularizing rate is difficult to be increased, so that the teaching effect is not very satisfactory. If depending on the wireless network, we can connect variety of modern educational methods and network together under the premise of low cost investment so as to give full play to their important roles in teaching.

Abstract: As the development of computers and internet technologies, e-commerce has become the global new business model, and become a necessity of social needs, so it is valued highly by all trades. In the implementation process of electronic commerce, security has been the bottleneck that discourages the further development of the electronic commerce. E-commerce security is a system concept, in addition to technical problems, management problems are also very important. It also links the social morality, the industrial management and the behavior patterns together. At the same time, e-commerce is a dynamic characteristic of security, and it will change as time. Some of the security problems can be solved through technical means, but nontechnical topics attack could easily break or bypass the hardworking of people in building the security environment. Therefore, to establish a sound and integrated mechanism and to remove the people's idea completely will ensure the safety of electronic commerce.

Abstract: Since the 21st century, the rapid development of computer network technology has driven the new changes of all industries, of which institutes of higher education are the first to be affected, and a new revolution of methods of teaching and model of teaching has been started, namely, the wide application of modern educational technology. However, the new type model of teaching has suffered certain restrictions in the process of spread and exploitation due to the limitation of network access, and has not been fully utilized, which causes an unsatisfactory teaching effect. The expansion of network cabling requires a certain degree of economic strength, which is just generally deficient in all institutes of higher education. If depending on the wireless network infrastructure, we can connect variety of modern educational methods and network together under the premise of low cost investment so as to give full play to their important roles in teaching and create new mode of teaching for all institutes of higher education.

Abstract: The rapid emergence of multi-media technology and internet technology is one of the typical characteristics during the information era, and their combination enables the carrier and transmission mode of modern knowledge and information to realize the leap in quality. The chemistry is one of the four fundamental courses of teaching system in the institutions of higher learning, but the chemical experiment is where the soul of chemical teaching lies. It is not merely the important means of making the students acquire the chemical knowledge, know the chemical rule, form the chemical concept and improve all sorts of capabilities, besides, the cultivation of the student’s creative spirit and ability in this process can not be replaced by other disciplines. However, in today’s chemical experimental class, the teaching effect of chemical experimental course is not perfect, because of the influence of experimental conditions, lab surroundings, time and other factors. By the design, the development and the utilization of multi-media network technology, the multimedia library, the video technology and the simulation technology, the teaching effect of chemical experimental course can be promoted to a large degree.

Abstract: In this study,we investigated the–463G/A promoter polymorphism of the MPO gene,in an attempt to explore the role of MPO in the pathogenesis of HPS caused by cirrhosis.The polymorphism of the MPO gene means the individual genotypes have different initial mRNA transcription activities and different expression levels,which further influences the activities of enzymes and results in the variation in disease susceptibility.This paper addresses gene polymorphisms play a key role in the development of HPS in cirrhotic patients.

Abstract: Ozone alone and catalytic ozonation of natural organic matter had been carried out in semibatch model reactor. The experimental results demonstrated that ozonation alone and catalytic ozonation are equivalent with minimization of natural organic matter(NOM), with the removal rate of TOC, UV₂₅₄ about 7 % and 50 % respectively. But it is a promising method for changing the molecular weight and specially for enhancement of biodegradation. The AOC in river water was 233 ug L^-1, which increase up to 325 ug L^-1, 677 ug L^-1, 633 ug L-1 in ozonation alone, catalytic ozonation (H₂O₂) and catalytic ozonation (ZnO) after 30 minutes reaction respectively. Through the research, it can be conclued that catalytic ozonation-BAC may be an promising way for water treatment.

Abstract: This study was based on surveys of zoobenthos in the Songhua River during summer and autumn 2008 to provide baseline information for future regulations on water quality. Based on the Shannon-Weaver diversity index, the Margalef richness index, the Simpson biological index and the Goodnight-Whitely modification index, water quality was categorized based on zoobenthos assemblages. In summer, 21 species of zoobenthos were recorded: 8 aquatic insect larvae, 10 mollusks and 6 annelids. In autumn, 24 species of zoobenthos were recorded: 11 aquatic insect larvae, 9 mollusks and 4 annelids. During the summer, zoobenthos densities ranged from 16 to 3200 organisms/m², averaging 723 organisms/m², while biomass ranged from 0 to 106 g/m², averaging 26 g/m². During the autumn, zoobenthos densities ranged from 16 to 6368 organisms/m², averaging 1321 organisms/m2. Biomass ranged from 0 to 92 g/m², averaging 31 g/m². The study has important practical significance, as it shows the possibility to monitor and evaluate aquatic bio-indicators reflecting the water quality of Songhua River.

Abstract: The article analyzes the situation of the food quality and safety system and comes to the key to strengthen a food quality and safety management, which Is to enhance transparency of the food quality and safety information and build a system of retrospective responsibility for quality. It proposes designs base on the internet and network bar code monitoring system of food quality and safety and establishment of database of all possible queries, etc.

Abstract: This paper describes the characteristics and Requirements of intelligent food processing，Introduced the principle, composition and development of visual technology, and it used in control in food processing, quality inspection, food safety and other fields of engineering. This article, by analyzing the typical applications, shows that the Vision Technology in food production of profiles, and trends.

Abstract: The objective of this study was to use the surplus sludge from sewage treatment plant and prepare sewage sludge adsorbent in order to use the adsorbent to remove the hydrogen sulfide from sewage treatment plant. To eliminate the secondary pollution of sludge and odor, it is a strategy of controlling waste by waste and reclamation. Meanwhile, research the process and mechanism of adsorbent’s deodorization, pursue the possibility of the adsorbent’s practical application.