Advanced Materials Research Vols. 219-220

Abstract: Experiment design is to find the main influence factors through analysis of initial experiment data, which is an important foundation to further experiment .This paper studies a kind of biodegradable foam packaging material. It is composed of starch and plant fiber and PVA as raw materials by molding. Using of uniform experimental design method obtains the experimental program. And applying SAS software, selecting stepwise linear regression method analyzes on the experiment results. Analysis results indicate that the contents of starch, fiber and PVA have significant influence to material tensile strength and establish the regression model. This research lays the foundation and provides the theories basis for further studies.

Abstract: For the implementation of precision irrigation (PI), it is most important to measure precisely plant water potential. The traditional measuring instruments still can not meet the need for continuous automatic detection of plant water potential, and have difficulty detecting living plant water potential. Plant water potential soft- sensing is one of the ways worth exploring. The first thing we should think about is the accuracy of the data. Filter the information of plant water potential acquired by the detecting system and further analyze this information to discover the change rules on the plant water potential.

Abstract: GPU provides higher peak performance with hundreds of cores than CPU counterpart. However, it is a big challenge to take full advantage of their computing power. In order to understand performance bottlenecks of applications on many-core GPU and then optimize parallel programs on GPU architectures, we propose a performance evaluating model based on memory wall and then classify applications into AbM (Application bound-in Memory) and AbC (Application bound-in Computing). Furthermore, we optimize kernels characterized with low memory bandwidth including matrix multiplication and FFT (Fast Fourier Transform) by employing texture cache on NVIDIA GTX280 using CUDA (Compute Unified Device Architecture). Experimental results show that texture cache is helpful for AbM with better data locality, so it is critical to utilize GPU memory hierarchy efficiently for performance improvement.

Abstract: The paper presents an information process system for appraising key construction projects’risk. Based on analytic hierarchy process (AHP) and principal component analysis（PCA）, and, with the help of software R, An information process system for appraising key construction projects’risk is developed in this study. A case is used to demonstrate the application of this system.

Abstract: As online gaming addiction has a serious impact on the healthy growth of young people, this paper presents a method that uses the ontology to shield Chinese game webpage. This method, based on positive example webpages and counter example webpages to calculate weight of feature words, to establish domain feature thesaurus and make ontology; then according to positive example WebPages, calculate weight of ontology elements in all parts of webpage to get ontology element weight database; then intercept webpage from the network application layer, identify candidate webpage (candidate) based on domain feature thesaurus; finally carry out semantic relevancy computing and shielding the game webpages in candidates. Experiments showed the shielding accuracy rate had arrived 98.8%. The principle of the method can be extended to other domains.

Abstract: Petrochemical industry produces long-lasting industrial waste gas, waste water and waste residues which affect ecological environment in our country seriously. The eco-efficiency rate is a significant indicator in evaluation industrial sustainable development, which represents the efficiency of alleviation pressure on the environment using natural resources in the economic growth. In this paper, we used three-stage DEA model to evaluate the eco-efficiency of the petrochemical industry. The empirical analysis shows that it is feasible to use the three-stage DEA model on evaluation the eco-efficiency of the petrochemical industry. The conclusion is has a practical and theoretical significance to promote sustainable development level of petroleum enterprise.

Abstract: This paper attempts to survey the compositions, functions and operation of an automatic control system for irrigation. By means of the application of technologies such as computer technology, telecommunication technology, autocontrol technology and modern agriculture technology, the automatic control system for irrigation can be realized. The system provides real-time monitoring for relevant parameters via sensors installed in field. All signals are delivered directly to a central controller through radio network. Based on the start and stop of pump unit and open and close of solenoid valve, the master computer can realize automatic irrigation and therefore provide a new water-saving equipment for the irrigation.

Abstract: As a main industry of our national economy, petrochemical industry produces long-lasting industrial waste gas, waste water and waste residues which affect ecological environment in our country seriously. The eco-efficiency rate is a significant indicator in evaluation industrial sustainable development, which represents the efficiency of alleviation pressure on the environment using natural resources in the economic growth. So, in this paper, we used three-stage DEA model to evaluate the eco-efficiency of the petrochemical industry. The empirical analysis shows that it is feasible to use the three-stage DEA model on evaluation the eco-efficiency of the petrochemical industry.

Abstract: A new type electrochemical reactor was designed for electrochemical promotion catalytic oxidation of NO, which was a flat-plate fixed-bed reactor. The experimental results showed that the process of NO catalytic oxidation could be promoted though this electrochemical reactor with Mn/TiO₂ and Mn-Fe, which were two kinds of selected catalysts for NO oxidation. Approximately 70% NO could be converted to NO₂ at 50 °C when the input voltage of electrochemical reactor was 0.5v. Moreover, the reaction rates can be adjusted with the input voltage varying.

Abstract: From the point of view of resistance, inductance and capacitance in physics, this paper firstly analyzed the similarities of their characteristics to various Mass Customization (i.e. MC) product costs, under the idea of overall product. Then, the conversion model between them was set up according to these similarities. Through making using of the system description method in Modern Control Theory, the system state equations of RLC series circuit were introduced. And meanwhile, the MC product cost optimization model based on Modern Control Theory was set forth. Finally, an example was given to illustrate the method put forward here, and some effective results were obtained.