Advanced Materials Research Vol. 918

Abstract: The research background is the pile foundation concrete formula design of transmission line, the foundation of construction site is high-corrosion circumstance in western of China. The target of this paper is to propose a concrete formula which can resist the compound attack of sulfate and chloride. Firstly, compound solution was made up to simulate the groundwater corrosion circumstance. Then, the following tests were carried out: sulfate solution attack test, groundwater attack test, chloride ion permeability test and compressive strength test under different curing environment. Many concrete formulas were pre-designed according to the different cement chemical compositions and the admixture quantities. After optimization, the adaptive formula was obtained. The scheme and results in this paper can be extended to similar studies on corrosion-resistant concrete.

Abstract: Nowadays the competition in sports has been increasingly fierce. Moreover the improvement of athletes performance has been constantly influenced by outside factors. As the high-tech materials appeared, sports performance is developing rapidly. Especially with the development of the nanotechnology, sporting machines are becoming more humanized. There are more convenient, protective, and rational in sports equipment. And it takes less time and labor force for athletes to recover from injury and athletes injury can be treated more precisely. Meanwhile, nanotechnology provides the micro level support for the athletes and makes the data in sports measurement becomes more accurate. In short, nanotechnology provides strong support and help for the development of sports, but at the same time it faces the confusion, too.

Abstract: In this work, a solar cell structure of nitrogen-doped nanocrystalline diamond (NCD:N)/p-type silicon was fabricated using microwave plasma jet chemical vapour deposition technique. The effects of nitrogen doping level on the structure, optical, and electrical of the as-grown NCD:N was discussed. The results showed that the micro structure, surface roughness, electrical properties, and optical properties were affected by the nitrogen doping. Additionally, the agglomeration of the film was increased with the higher concentration of CN species when the ratio of doped nitrogen increased. The roughness of the film was Rms:16.5 nm ~ 20.4 nm and the wettability was increased (contact angle 94.4^o ~ 64.6^o). The optical transmittance was decreased (87% ~ 72%) with the higher nitrogen. The results of Hall measurements showed that the carrier concentration increased 2 order (1016 cm^-3 to 1018 cm^-3) through nitrogen doping. The solar cell was made by NCD: N compound with p-type silicon. The photoelectric conversion efficiency was 2.8%. The open-circuit voltage was 0.52 V. The short-circuit current was 3 mA and the fill factor was 0.38.

Abstract: Scientific and highly rational allocation of support vehicles is an important material foundation on successfully completing support task. Based on characteristics of task and vehicle, we propose build vehicle allocation method set, complete support vehicle allocation scheme operations. First we analyzed to determine the key factor of the vehicle allocation, followed by support vehicles according to characteristics of construction method of allocation set. Once again under the support task characteristics, step by step approach focuses on the use of the specific allocation method to generate the allocation base scenario. Finally, according to environmental factors correction, get support vehicles allocation scheme.

Abstract: Pneumatic mechanism widely used in industrial, automotive, aerospace, and etc. The principle of pneumatic like piston is move up and down due to the air pressure inside the piston. Mechanism of piston can be applied to the power plant that utilizes the ocean waves where as use of piston mechanism is very helpful in solving the problem of fossil fuel scarcity as a source of energy in power plants. In this study we will focus on the pneumatic system which utilizing ocean wave that moves longitudinally to encourage buoy that located on the piston shaft to up and down and then the pressing of air out of piston. Output of the piston will be forwarded to the generator (rotor and stator) to produce a voltage. In this paper is focused on the manufacture of pneumatic systems and processes to produce the rotation and voltage. Material of piston tube component made of aluminum and rubber, buoys made of plastic and generator such as of metal and copper coils. Output of the piston will be forwarded to the generator (rotor and stator) to produce a voltage. In this paper is focused on the manufacture of pneumatic systems and processes to obtained the rotation and voltage with aluminum for piston tube material, buoys made of plastic and magnet rotor and copper coils of stator include on the generator and get the results of ocean wave power plant using piston mechanism is 1400 rpm with a voltage of 36 volt.

Abstract: An advanced LED multi-die-bonding integration using a fluidic self-assembly technique is proposed in the field of flip chip packages. Different form the conventional pick-and-place methods for a single LED die bonding, the fluidic approach is a relatively new design and a batch process, which can achieve not only die self-alignment but die self-assembly. Here, the size of LED die is 1-mm-square chip with the thickness of 0.3 mm. Due to the smaller size of LED die, the die-bonding process is still in need of finding a suitable approach and breakthrough. In this study, our design of fluidic self-assembly device is based on the experimental test and simulation results. The device design is the gas-flow channels with the magnetism. The width, height and length of each gas-flow channel are 1.1 mm, 0.5 mm, and 1 cm, respectively. With the restriction of the channel width, this structure design can control well to die self-alignment. In addition, the design of two circular structures in the channel can form a flat rim to achieve the die self-assemble. This mechanism of fluidic approach can be useful to the LED die self-alignment and self-assembly in the future batch processing.

Abstract: Use Topsis law on aviation anti-submarine aircraft maneuvering performance evaluation for assessment, evaluation index set to establish anti-submarine aircraft maneuverability, the establishment of a data matrix samples to be evaluated, the results consistent with the actual situation. This method effectively reflects the comprehensive and objective maneuverability of the aircraft, aviation anti-submarine aircraft performance evaluation provides a new way.

Abstract: This paper describes the design of a system to facilitate the adjustment of grain transport vanes in Axial-Flow® combine harvesters produced by Case New Holland (CNH). The goal was to develop a mechanism that allowed quick and convenient setup and was at the same time simple, effective and inexpensive. The systematic approach to product planning and design was used. The results of market and patents researches conducted are reported, as well as task clarification, conceptual design, embodiment and detailed design of the system. The conceived system allowed a 80% reduction of time spent in grain transport vane adjustment. Its implementation is planned to be conducted by CNH.

Abstract: Air Cushion Vehicle is widely used in the field of military and civil ship in recent years for its characteristic high speed and amphibian. Since the yield strength of aluminum sheet with stiffeners is relative low after welding, to ensure air cushion vehicle has significant strength under normal load and to avoid severe damage under adverse sea conditions, model loading test and theoretical prediction is used to determines the design values of wave loads, and FEM analysis with direct calculation method under the different load cases including the total longitudinal strength, cross-strength, torsional strength and shear strength, and then getting the structural response results. This essay gives several suggestions for the design according to the calculated results of stress and its deformation characteristics.

Abstract: With climate change and energy security being growing concerns, Electric Vehicles (EVs) growth has taken on an accelerated pace. This research aims to predict Chinese EVs and Internal Combustion Engine Vehicles (ICEVs) stock in the forth coming 40 years. We introduce the double species model to fulfil this program, by solving the model and computer simulating, two trajectories for their growth under different scenarios400 vehicles and 500 vehicles per thousand people at 2050 year are obtained. It reveals that, (i) ICEVs is already in booming stage and will last 16-18 years. (ii) EVs has a golden stage which will last 13-14 years, and before this prospective stage, there is an initial slow growth period which will probably last 10-11 years. (iii) Under each scenario, the difference between EVs and ICEVs stock at year 2030 is 8.63%-10.13%, which confirms that Chinese ambitious EVs development program may be realized if government provides strong policy supports on this new industry. Its contribution is a new method to predict EVs as well as getting two interactive trajectories for EVs and ICEVs growth.