Advanced Materials Research Vols. 204-210

Abstract: In turbulent business environment, executives’ cognition plays an important role in their understanding and the process of decision making. Cognitive map helps the senior executives in their thought process. The construction of information-based cognitive map, however, is a wicked problem, which could hardly be tackled by hard systems methodologies. Design science provides a good solution. This paper puts forward a research methodology, which is divided into six activities, to build up an information systems (IS) based cognitive map for cognitive decision support. The methodology is demonstrated by a case study of a Chinese steel company’s strategic decision making.

Abstract: In this paper, a simplified nonlinear finite element for bump foil forming process of foil air bearings is developed. The bump foil is dealt with as flexible deformable body, the upper die and lower die are considered as the rigid body without deformation. The friction model between bump foil and dies with velocity-dependent friction forces is described by arctan function. The forming process of SS304 Stainless Steel bump foil under different loads is investigated with rigid-plastic finite element method. The simulation results are compared with theoretical values and experimental results. Therefore more feasible process parameters are obtained to fabricate the bump foils.

Abstract: Through the construction of substation monitoring system based on Bluetooth, the separate monitoring systems of environment is integrated with the former comprehensive automation system into a unique system. It's a new step of substation automation. The system architecture, software, hardware and the necessary factions of this system are introduced in detail for reference of practical design.

Abstract: A controller based on DSP (Digital signal processor) is built during Arc Ion Plating. The purpose of controller is to realize real-time and flexible control on Arc Source Device. It is shown that by using DSP, Arc Source Device can be controlled and protected online. As a result, not only can Arc Source Device change output current according to the order from upper monitor momentarily, but also the faulty or failed Arc Source Device can be isolated rapidly.

Abstract: Inorganic heat pipe is a new kind of heat transfer elements. To research the condensing characteristics of inorganic heat pipe condenser under negative pressure, the test-bed is established. In condenser design, traverse baffles are used to enhance steam velocity and steam disturbance to liquid film to strengthen heat transfer. Orifice connected to vacuum pump is fixed on the underpart of condenser to prolong steam flowing path and avoid steam loss caused by pump sucking. The relationship between water output and absolute pressure is a quadratic curve. The differences between testing water outputs and theoretical ones are analyzed. The research supplies a design basis for the inorganic heat pipes condenser used in low temperature distillation desalination unit.

Abstract: Compared with CFRDs in about 100-meter height, the high CFRDs in about 200-meter height are more sophisticated in dam deformation, seepage, stress and strain, structure and loads standing characteristics, etc. Thus it is very important to intensify the monitoring research on them. It was suggested to regard the safety monitoring of high CFRD as systems engineering, to pay equal attention to safety monitoring of both concrete face slab and to interconfirm their monitoring results. The overall analysis and discussion on high CFRD monitoring were presented at each aspects varying from the monitoring targets and tasks, monitoring principles and requirements, selection of monitoring items to monitoring implementation.

Abstract: The needs for vegetation water content monitoring originates from forest fire assessment: Firstly, the vegetation water content affects the forest ignition point; secondly, it affects the spread rate if the forest is on fire. Based on the above reasons, the inversion of vegetation water content in Da Hinggan Ling region of China was studied, using the Normalized Difference Water Index from MODIS (Moderate resolution Imaging Spectroradiometer) data, the relationship between the water content of vegetation and forest fire risk was preliminary analyzed.

Abstract: According to the characteristics of HF channel and chirp signal, an innovative multipath time-delay model of wide-band HF channel was proposed, by which the estimation problem of time-delay was converted into an estimation problem of spectrum.Then the MUSIC algorithm with super-resolution ability was applied to the problem above. The feasibility of estimating multipath time-delays based on single measurement data was deeply discussed. Meanwhile, the performance of applying MUSIC and root MUSIC algorithm to the model proposed in the paper was presented. The simulation results suggested that the method proposed in the paper owned super-resolution ability and robust in estimation of multipath time-delay.

Abstract: This paper studies a member selection problem of a supply chain network consisting of many different projects, such as supply, manufacturing, distribution, and logistics. It first takes those different projects as a whole one, considers the principal-agent relationships among these enterprises and establishes models using the nonanalytical objective function. It also proposes a genetic algorithm to generate a relatively reasonable solution and validates it with an example.

Abstract: Cloud computing is changing the way enterprises develop and deploy information systems. With the rapid development and successful implementations of the model-driven architecure(MDA) and service-oriented architecture (SOA), clouding computing has become the focus of researches. This paper describes the design and implementation of a service template markup language (STML) and its integrated development tools, which provide a comprehensive solution to the reconfiguration of applications over cloud computing platforms. In the paper, we first analyze and point out the limitations of current software reconfiguration approaches, then propose a framework for a SMDA-based approach to software reconfiguration in a PaaS platform, next present a series of PaaS service models and an XML-based service template markup language, finally conclude by an example showing the practicability of the tools.