Applied Mechanics and Materials Vol. 422

Abstract: This paper is to investigate the influence of trace element strontium on the content of blood glucose, glycated hemoglobin, triglycerides, non-esterified fatty acid and total cholesterol in type I diabetes rats blood. Methods: Adult Wistar rats weighing 220~250g, half male and half female were used in the experiment. One-time intraperitoneal injection of Streptozotocin (STZ) 60mg/kg was administrated to rats. Three days later, the rats that have fasting blood glucose more than 16.7 mmol/L were the diabetes model rats (DM rats). Then DM rats were randomly divided into group A, rats drinking mineral water with Sr 2mg/L; group B,rats drinking mineral water with Sr 4mg/L; group C, rats drinking mineral water with Sr 6mg/L; group D, rats drinking mineral water with Sr 8mg/L and DM group rats drinking tap water, 32 rats in each group (N = 32). 8 rats in each group after the first month, the second month, the third month, and the fourth month were randomly killed and the blood was collected. Then the blood was used for evaluation of blood glucose, glycosylated hemoglobin, triglycerides, non-esterified fatty acid and total cholesterol.

Abstract: 100 Nm BaTiO₃ Powders with the Content of 0, 0.5, 1, 5, 10 and 20% were Added into 1μm Al₂O₃ Powders, Dense Al₂O₃-Based Composites with Dispersed BaTiO₃ Particulates were Fabricated by Conventional Pressure-Less Sintering at 1500°C. the Results Showed that there is a Non-Linear Relationship between the Addition Content of Fine-Grained Particles and the Flexural Strength of Al₂O₃ Ceramic. when the Content of Doping BaTiO₃ Powders Reached around 5 % (mol), the Maximum Vickers Hardness of 137 and the Highest Break Strength of 269MPa were Achieved. Moreover, the Stress-Strain Curves have the same Characteristics of Ceramics.

Abstract: Because of its excellent electrical properties, the insulation sheath is widely used in outdoor power equipment terminal stop position. The performance of the insulation sheath will directly affect the normal operation of electrical equipment. For the insulation sheath detection rely mainly on traditional electrical insulation testing means. This article through using ANSYS finite element simulation software to simulate the hole type defects of the insulation sheath. Then combination of X-ray DR detection system with traditional electrical insulation testing method, testing of three insulation sheath, the test results are consistent with the simulation results. At the same time, this article illustrates the possibility and the reliability of X-ray DR detection system on the insulation sheath.

Abstract: ndium tin oxide (ITO) and indium tin tantalum oxide (ITTO) films were deposited on glass substrates at room temperature by magnetron sputtering. Properties of the ITO and ITTO films showed a dependence on annealing treatment. ITTO film deposited at room temperature showed the enhancement in (400) orientation and the increasing in grain size. With an increase in annealing temperature, the intensity of XRD peak increased and the grain size showed an evident increasing. The reflection edge in near-IR range and the absorption edge in near-UV range shifted due to the variation in carrier concentration. Ta-doping improved the carrier concentration of the films and widened the corresponding optical band gap. The variations in optical band gap were due to Burstein-Moss effect. The higher value of figure of merit of ITTO films was observed. The tantalum-doped ITO films could find extensive application in some devices.

Abstract: Steel hot stamping is a kind of new forming technology that advanced high strength steel plate will be heated to austenitic temperature then stamping quickly, quenching in pressure stage through the mould and obtaining the cool speed required, thus obtaining the martensite which owns the intensity of around 1500 MPa of ultra high strength. Hot stamping technology of ultra high strength steel plate is one of the important ways which reduces body weight and improves shock resisitance and crashworthiness. Based on the analysis of hot stamping technology and the research present situation, comparing the key equipments and the core technology of the steel plate with each other. The key problem of high strength steel plate hot stamping area is discussed , present situation and the prospect is pointed out.

Abstract: Aiming at the fault diagnosis problem, the transformers fault diagnosis method is proposed based on improved support vector machine. The optimum parameters setting are got by the particle swarm optimization. The experimental results demonstrate that the proposed method of this paper has the good classification performance, the high reliability, effective and feasible. Keywords: support vector machine, fault diagnosis, particle swarm, classification

Abstract: The improved design of the form of product is related to the free-form surface treatment, but the use of the product which forms the point cloud data to obtain a satisfactory surface reconstruction is difficult. NURBS surface fitting technique, the appearance of the product first be classified according to form, and then accordingly the product shape reconstruction, it is much easier. Facts have proved that the conditions does not require high precision, the use of NURBS fitting to reconstruct the free surface able to obtain a satisfactory product form. This improved design of the product form is practical.

Abstract: A pulsed pressure-water cycle technology was applied to accelerate the salting process. Effects of pulse pressure amplitude, high pressure holding time/atmospheric pressure holding time ratio and water cycle acting time on salt contents of duck white and duck yolk were studied by single factor and orthogonal array design methods. The experimental results showed that during the 3 day salting with 24% Salt solution under 30 °C. To obtain optimal quality of salted eggs and the optimum mass transfer rate, solution was obtained under the following conditions: pulse pressure amplitude was 140 kpa and high pressure holding time/ atmospheric pressure holding time ratio was 8:16min, water cycle pulsation ratio was 2:10 min, and the water cycle acting time was 132 min.

Abstract: How to apply a torque is a very important problem in finite element analysis, and the traditional method utilizes a series of forces instead of the torque, but often leads in stress concentration. In this paper, many methods are being used to achieve the torque. And these methods are being compared, thus we can get several availability methods.

Abstract: In this paper, the typical aircraft panel is excited by the noise induced in traveling wave tube, the vibratory phenomenon of the typical aircraft panel is researched in detail. The piezoelectric vibration of the aircraft panels is damped by Synchronized Switch Damping on Inductor technology (SSDI technology). The acceleration parameters of the structure are controlled and the effect of structural damping is achieved.