Advanced Materials Research Vols. 282-283

Abstract: Volatilization of diesel oil in sand columns was conducted at the ambient temperature of 20 °C by spilling oil on the sand surface. The weight loss of oil was determined by pre and post weight of the sand columns and desiccant was measured on an electronic balance. The aim of this paper was to investigate the effect of moisture content on the volatilization of diesel oil in sand. The results show that the diesel oil and water in sand both volatilize at a linear rate with respect to time. The largest volatilization mass of diesel oil and water reach when the moisture contents are 8% and 20% respectively. Appropriate water content can help to pull the oil contaminants to the surface of the sand.

Abstract: With the changes of domestic environmental policy, the curriculum provision of environmental engineering should be continuous improved. This paper analyzes the current teaching situation of environmental engineering and brings up rationalization proposals. According to the found problems of theory course, experimental course and practical training, it is very necessary to adjust the training program and curriculum system of environmental engineering. The specific measures are adding some new courses to teaching system, and changing the assessment methods. There are different characteristics among theory course, experimental course and different courses, so the teaching methods and assessment methods are different, too.

Abstract: Watermarking technique has widely developed prospects in information protection, digital right authentication and electronic commerce. This paper describes the basic concept, character, classify of watermarking technique. The function of watermarking technique in digital information security and protection is analyzed in detail.

Abstract: Flocculation water treatment is one of the important aspects of water treatment .The aim of this work is to use PFS for treating Yellow River surface water and different molecular weights of chitosan as coagulant aid. Electron microscope was used to observe flocs morphology and study CTS coagulation aid morphological change, floc image with microscope camera system analysis, calculation of floc fractal dimension. The results show that the different molecular weights of CTS in dealing with surface raw water to play a good coagulation aid effect. Microscope and image analysis system of flocs morphology show that fractal dimension of morphology of PFS / CTS were significantly higher ,Among them，high molecular weight of CTS as coagulant aid，and fractal dimension of morphology of PFS/ CTS were 1.1026,1.5593 , low molecular weight of CTS as coagulant aid，and fractal dimension of morphology of PFS/ CTS were 1.0904,1.5440 respectively. Floc fractal dimension changes to better reflect the flocculation level and treatment effect for the establishment of floc fractal dimension number of changes in the coagulation control is provided for reference.

Abstract: Activated Carbon Fiber was use to treat aniline wastewater. Influencing factors，such as pH value ，salinity were studied and dynamic conditions of concentration and flow adsorption effects were also studied. Adsorption isotherm, dynamic curves and dynamic adsorption breakthrough curve were drawn. The results indicated that the salinity of the solution will affect the adsorption results and concentration in the same circumstances, time was 9 min, pH neutral in better conditions adsorption, adsorption capacities were determined to be 72 mg/g .Under dynamic conditions，with increasing concentration and velocity, the initial penetration point ahead．

Abstract: Domain ontology plays an essential role in formalization and sharing of domain knowledge. However, constructing domain ontology is a labour intensive and time consuming engineering. To efficiently represent knowledge as a set of concepts and relations within domain ontology, a 5W1H method is proposed to analysis concepts and relations of it from six aspects including Who, When, Where, What, Why and How. The theory and methodology of modelling domain ontology based 5W1H is also presented in this paper. Take Expert Ontology in expert information domain for an example, six-layer framework for conceptual model of expert ontology based 5W1H is designed, and conceptual model of expert ontology is constructed, in which concepts and relations within expert ontology are defined. Application shows that the 5W1H modelling method is flexible and scalable, because it is not only able to assist ontology engineering to construct domain ontology quicker and more accurately, but also adaptable to business changes and user requirements. In addition, it is helpful to define reasoning rules for inferring knowledge and to share domain knowledge.

Abstract: Due to increased uncertainties in corporate demands the vendor-managed inventory method was developed; however, relevant literature indicates that the vendor managed inventory system has bottlenecks in implementation. Thus, this study applied the Fuzzy Delphi Analytic Hierarchy Process for selecting objective attributes, and constructed a vendor managed objective hierarchy structure. Using ABC Classification, category A multi-objective attributes was selected. Dynamic multi-criteria decision analysis was used to analyze category A multi-objective attributes, as selected by different sectors in the first year. If all the objectives have quantitative attributes, multi-criteria programming was used to construct the model. Further, comparisons were conducted for the results obtained from the Non-dominated Sorting Genetic Algorithm, the Particle swarm optimization method, and the modified multi-criteria planning method. Modified Data Envelopment Analysis was used for performance evaluation. ARIS (Architecture of Integrated Information System) analyzed relevant corporate process reengineering, and the decision results were incorporated into the management information system.

Abstract: Innovation research has advanced recently, scholars tried to uncover the antecedent factors of organizational innovation. It is argued that innovation in firms should be associated with the intelligence and the capabilities of the workforce, nevertheless, there are still few empirical research explore the relationship between human resource management practice and organizational innovation operation in china.Drawing on review of relative literature, the study examines the human resource management practice promoting organizational innovation, and give a clue to understand how these factors shape innovation in organizations.

Abstract: Li-ion batteries have been widely used. However, the safety concern is always serious due to its high energy density. In order to improve the safety of the batteries, it is necessary to use the protection integration circuit. In this article, the concept for realizing the safety protection of Li-ion batteries during charging and discharging is described briefly. A circuit design using Seiko BMS chip S-8209 is purposed. Based on this, a simulation was performed and verified using Pspice program, which provides a theoretical basis for the circuit design.

Abstract: This paper describes the agent technology and the concept of digital watermarking and the specific properties of watermarking techniques forced by the copyright protection applications. For digital copyrights protection in heterogeneous network environment, intelligent Agent technology is introduced to combine with digital watermarking technology. It proposes a framework model of Digital Right Management (DRM) system based on the agent technology and digital watermarking techniques and detailedly discusses functions and working principle of intelligent Digital Right Management(DRM) system.