Advanced Materials Research Vols. 816-817

Abstract: The paper introduces a new displacement sensor design idea called differential line grid sensor. It can gain more impulses and improve resolution power on the basis of the principle resembling that of vernier caliper through using the scribing number difference of two rulers with relative motion. The Parameter choice of differential line grid displacement sensor greatly affects the performance of the sensor. Several special factors need considering and rules need following. The working principle, the parameter design rules and the experiment result of the sensor are introduced particularly here.

Abstract: There are many reasons to control the amount of sunlight admitted into a building. In warm, sunny climates excess solar gain may result in high cooling energy consumption. In cold and temperate climates winter sun entering south-facing windows can positively contribute to passive solar heating; and in nearly all climates controlling and diffusing natural Illumination will improve day lighting. A Well-designed sun control and shading devices can dramatically reduce building peak heat gain and cooling requirements and improve the Natural lighting quality of building interiors. In this casestudy Shading Devices commonly found in India are evaluated to find Optimized Shading Device for Hot-Dry Climate of South India

Abstract: This paper proposes a low power voltage reference generator in 0.18μm CMOS technology.The circuit presented here includes MOSFETs in sub threshold mode and uses the temperature dependence of threshold voltages and sub-threshold current of MOSFET to form a temperature-insensitive reference. An input supply voltage of 1.8 Volt is used for the circuit generating a total current of 1.33μA. By varying the device temperature over the range of-20°C to 100°C corresponding variation over the output voltage was found to lie in the range 397.8 to 400.2 mV. Thus a 0.6% variation in voltage over the considered range of temperature is obtained.

Abstract: An experimental study on buoyancy driven-storage device is presented in the paper. The proposed device is forced to descend into a tank filled with a certain fluid the tension of a nylon wire that allows it to remain stationary at the bottom of the tank until the energy is needed. It is then released to reach the surface of the fluid liberating energy during that process. This paper also briefly presents the theoretical background and compares it with the experimental results. The application of this research is related to energy storage by non-conventional energy sources during off-peak timings. The experiments performed, have confirmed the validity of the approach and efficiency of the current system exceeds more than 40%. Other advantages like compact storage setups, higher energy density retrieval, longer life and low maintenance cost has made it more authentic than chemical storage devices.

Abstract: The present paper focuses on the theory of vibration of a circular micro-machined ultrasonic transducer to model a single cell of Capacitive Micromachined Ultrasonic Transducers (CMUTs) and it describes the displacement behavior of membrane with respect to applied static bias following Masons analysis of a suspended membrane under tension. Analysis of the critical parameters like collapse voltage and membrane deflection is made and compared with experimental results to verify the validity of the model.

Abstract: Based on main structural features of the high strength thrust bearing shells, ANSYS has been applied, in this paper, to establish a finite element model and simulate the combined stress and deformation of the high strength thrust bearing shells and connecting bolts between them. Simulation results show that strength of high strength thrust bearing shell and the connecting bolts between the shells can meet the design requirement of the structure form with heavy thrust load and high strength.

Abstract: Purposes: This study is to establish an adjustable environment for culturing the functional human auricular cartilage shape in vitro. Methods: Physical stimulation affects chondrocytes function. Therefore, bioreactors have been designed in vitro to transmit a novel perfussion-compression loading and can stretch and maintain the construct's size and ear-specific shape. Results: It could provide cultures with multimechanical adjustment complex mechanical environment of a normal human auricular cartilage. Conclusions: We propose that this comprehensive perfusion-compression loading bioreactor can enhance the cultivation of shaping and elastic human auricular cartilage constructs in vitro.

Abstract: In this paper, a novel quantum genetic algorithm is proposed. This algorithm compares the probability expectation of the quantum chromosome with the best binary solution to determine rotation angle of rotation gate. Different individual in population evolve with different rate to complete local search and global search simultaneously. Hε gate is used to prevent the algorithm from premature convergence. After analyzing the algorithm and its global convergence, applying this approach to the optimization of function extremum, and comparing with the simple genetic algorithm and the quantum genetic algorithm, the simulation result illustrates that the algorithm has the characteristic of quick convergence speed and high solution precision.

Abstract: The power grid dispatching automation system is the nerve center of the strong smart grid, and its safe and stable operation is the strong guarantee of power supply. To make efficiently use of computing resources, improve the availability and flexibility of power grid dispatching automation system, this paper proposes to apply the virtualization technology to the power grid dispatching automation system to make it provide the required resources such as computing, storage and network. Through in-depth analysis of the current situation of power grid dispatching automation system and virtualization technology, this paper indicates that the virtualization technology is suitable for application in power grid dispatching automation system. Using the virtualization technology, the virtual resource pool is built; Base on the pool the grid dispatching automation system architecture is given. Then through the deployment of system hardware design, program implementation and advantage analysis, the power grid dispatching automation system based on virtual technology is built. Results show that the power grid dispatching automation system based on virtualization technology has the advantages of high availability, high resource utilization rate, load balancing and easy to scale.

Abstract: An imaging model of spatial point target in dual-band infrared was set up on the basis of Plancks law. The formation mechanism of differences of point target imaging characteristics in dual-and infrared was revealed. The impact of the target temperature, surface emission, transmission distance and the rate of detector response were analyzed in detail. This paper provides the basis for space target recognition.