Applied Mechanics and Materials Vol. 510

Abstract: This article proposed a design of the platform whose form of existence is intermediary. It constructs the core framework of platform aiming at development with the basic function of the electronic commerce as the basis of platform. It integrated each aspect of all kinds of electronic business model. The ultimate goal is to realize the each link of the whole value chain of enterprise throughout the platform for building a framework providing enterprise's comprehensive information service, third-party information service and foundation of constructing e-commerce platform.

Abstract: Textile, as a kind of universal significant material in the human history, becomes an increasing number of popular among the people. Besides, it has the double needs in the material in the interior decoration. With the rapid development of our domestic economy, people, in China, put forward to more higher standard for the demands of their indoor living, The soft decoration dominated by interior textiles has become the mainstream and main development trend of design field in our society. This article intends to analyze from the level of the texture feature, and from the four aspects to analyze the influence of textile texture in the indoor decoration: textile texture, the color of textile, pattern and cultural of textile, and the emotional of textile, meanwhile, around the texture features of the textile and extend the wide inspiration and thinking to the interior adornment.

Abstract: Objective To explore the relationship between acetabular cup position and the load distribution within the acetabulum and to confirm an optimal range of cup position, thereby providing a theoretical criterion from a biomechanical aspect for proper cup implantation in clinical work. Methods A male adult cadaveric pelvic was scanned with spiral CT, and then the two-dimensional images were evaluated using GE medical systems software and the outline of the pelvis was identified by the edge detective estimation. Pelvic coordinate data were put into the computer to build up a three-dimensional (3D) finite element model of the pelvic using Solidworks software . A φ48 non-cemented cup from Tianjin Huabei Medical Instrument Factory was used, and the 3D measurement of the cup was carried out by CLY single-arm 3D measurement apparatus, which was made in Testing Technology Institute of China. The measurement data were transferred into computer. Through the CAD Sliod Works 2010 software, the 3D model of the cup was automatically reconstructed. After wards, one-foot standing position was simulated to conduct the loading and constraint of the model, the Mises and shear force distributing of the cup were analyzed, forecasting the mechanical risk of prosthetic failure. Results In the 3D finite element model of human pelvis, the number of total nodes was 103043 and the number of total elements was 69271. Abduction angle did not affect the Mises and shear force distributions between the range of 40°-50°(P>0.05). However, significant affects appeared in Mises and shear force once the abduction angle was < 35° or > 50°. The change of the cup anteversion within5°-30°would not affect the Mises and shear forces in the acetabulum (P > 0.05). Conclusion A uniform load distribution on the cup-bone interface can be obtained when the cup abduction angle is from 40°to 50°. The change of the cup anteversion angle can not affect the load distribution in the acetabulum, therefore the cup abduction range of 40°-50°can be confirmed as the safe range for cup implantation.

Abstract: Objective Three-dimensional finite element analysis was employed to select femoral prostheses according to different bone densities, and simultaneously simulated contrast mechanical tests were performed to determine the age criteria regarding the selection of femoral prosthesis during the hip replacement. Methods Three-dimensional finite element models of femur were established using Solidworks software. Following the known formula, the bone density and elastic modulus at different age brackets were calculated and input into the computer. The human one-foot standing condition was simulated and pressure was loaded on the reconstructed femoral models. Some iomechanical characteristics of un-cemented and cemented femoral prostheses, such as the distress distribution and initial micro-movement at different bone densities, were measured. Results Relatively well-distributed whole distress and slight initial micro-movement of un-cemented femoral prostheses were found in male patients at 30-60 years old and in female patients at 40-55 years old. Symptoms of cemented femoral prostheses the same as the un-cemented femoral prostheses were present in male patients at 60-70 years and in female patients older than 55 years old. Conclusion Results of three-dimensional finite element analysis and simulated contrast mechanical tests suggest that un-cemented femoral prostheses provide better therapeutic effects in male patients younger than 60 years and in female patients