Advanced Materials Research Vol. 646

Abstract: This paper describes a simple metal pattern transfer method on glass substrates. Ag metal films were transferred by the conformal contact method at 150°C, which did not require higher pressure than the conventional nano-imprinting method. The important factors affecting quality of transferred metal patterns on glass were the usage of anti-sticking layer on mold surface, thickness of transferred metal films and temperature during contact printing step. Various Ag patterns were transferred onto glass substrate.

Abstract: Servo system plays a critical role in printing and die-cutting machinery of corrugated board (PDCMCB) with electronic line-shafting, and the configuration of servo can contribute to the performance of PDCMCB with electronic line-shafting. The paper presented the evaluation approach of servo configuration with intuitionistic fuzzy set (IFS), intuitionistic fuzzy entropy (IFE ) and technique for order preference by similarity to ideal solution (TOPSIS) to improve the effectiveness and objectivity of servo configuration evaluation of PDCMCB. IFS and IFE were used to obtain criteria weights integrating with maximal deviation entropy model, and TOPSIS was performed to calculate the final ranking order of servo configuration of PDCMCB with electronic line-shafting. Finally, an example was used to illustrate the proposed method of configuration evaluation and the results indicated the proposed approach could effectively perform servo configuration evaluation for PDCMCB.

Abstract: We propose an iterative detection scheme for Turbo-BLAST system with optimal power allocation in the presence of channel state information imperfection. The proposed scheme uses the channel estimation matrix for detection and treats the interference caused by channel estimation errors and additive white Gaussian noise as equivalent noise where the channel estimation matrix and the statistical characteristic of channel estimation errors are necessitated. Simulation results show the proposed algorithm is effective to improve bit error rate (BER) performance through iterative detection for modified Turbo-BLAST system with optimal power allocation in the presence of imperfect channel state information.

Abstract: This study investigates and acts as a trial clinical outcome for human motion and behavior analysis in order to investigate human arm movement during jogging and walking. Three methods were proposed to differentiate and separate both of the jogging and walking data set, they are statistical tabular, scatter distribution and artificial classifier recognition. Linear decision boundary and radial basis function kernel (RBF) were proposed to perform the separation works for artificial classifier recognition section. It aims to establish how widespread the movement and motion of arm will bring to effect of human in life. An experiment was set up in a laboratory environment with conjunction of analyzing human motion and its behavior. The instruments demonstrate adequate internal consistency of optimum RBF kernel for jogging and walking pattern classification. RBF used in this study was successfully differentiate and classify the jogging and walking patterns of a human arm movement during performing these activities.

Abstract: The conventional Direct Torque Control approach has some drawbacks such as high torque ripple and switching frequency, which is varying with speed, load torque and the selected hysteresis bands, this paper discuss the application of neural network and fuzzy logic on DTC of Doubly fed induction motor DFIM, the proposed techniques having the advantages of low torque and flux ripples. Simulation results emphasize the good performance of the fuzzy and neural techniques.

Abstract: Kinematics research of mechanism is very important, the dynamic analysis and the design are based on kinematical analysis. In this paper, a novel robot shoulder joint based on 3-RRR orthogonal spherical parallel mechanism is proposed, and the kinematics transmission equation of shoulder joint is derived by using the kinematics inverse solution, and Jacobin matrix is established. Then Jacobin matrix is introduced into the global performance index, and the velocity of global performance evaluation index is defined. Furthermore, the shoulder joint dimensions are changed, and the global performance index is analyzed, then a performance atlas is given at the work spaces of shoulder joint with different dimension. It is found that the Jacobin matrix has more important influence on the kinematics performance of the shoulder joint. Having a good kinematics performance, structure dimensions ranges of shoulder joint are gained, thus the evaluation of kinematics of shoulder joint is more comprehensive. Finally, a novel robot shoulder joint is designed with the kinematics performance evaluation index.

Abstract: In order to increase wosrkspace and carrying capacity of leg mechanism and improve popularity and adaptability of leg mechanism, a novel mechanism is proposed which has three branches of 6-DOF, which used 3-UPS parallel mechanism as the prototype of the mechanism. The static performance of the leg mechanism is analyzed and the structure parameters are designed. First, the static transmission equation of the leg mechanism is established by using the principle of virtual works which simplifies the calculation process of the leg mechanism. Further, the static performance evaluation index and the global torque performance evaluation index are defined, and the performance atlas of the static performance evaluation index is plotted at the work spaces of the leg mechanism. Moreover, by using of the space model theory, the structural dimensions parameters are optimized of the leg mechanism. Finally, using a set of optimal structural dimensions parameters and the virtual prototype of leg mechanism is designed. The research provides a theoretical basis for further investigation on leg mechanism.

Abstract: The paper is focusing on two primary methods used for pollutant emissions decreasing at power plants, the modernisation of the power plant units with low NOx burners installation and the possibility to use the regenerable energy sources (mixtures of biofuels and liquid fuels) in energy field. CO₂ emissions reducing is the result of computation of the mixtures combustion on an industrial furnace. By experiments with vegetable oils and by CO₂ computations on an industrial furnace it can be proved the possibility to use the mixtures of biofuels for the heat and electricity production.

Abstract: In the automatic assembly of locks system the pins’ selection depends on depth of key’s groove. Although the kinds of groove’s depth are fixed, the arrangements are random and they can’t be unpredictable. The difference in depth of key’s groove is very small, so it can’t be judged by eyes accurately. To solve the problem that the pins assembly is tried frequently, the depth of keys’ groove can be measured accurately by the machine vision. So the problem of the serious influence production efficiency is solved successfully. This kind lock is widely used and machine’s cost is very low by allocation. The experiments show that this method fully met the locks automatic assembly system requirements from the assembly precision, real time performance and robustness and other aspects, solving the problems encountered in the lock assembly.

Abstract: The development of a family of autonomous robots with tracked propeller activated by electrical engines and equipped with very precise „human hand-likeˮgripping will allow their use in various fields. The precision is also ensured by the introduction into the driving system, more precisely into the basis of the driving system, of a stabilizing system of the operational platform. Providing a photovoltaic-type power supply will increase the autonomy of the robot. Finally, the installation of a GoPro Be a HERO s outdoor edition professional camera enables the viewing of an extended field and the transmission of the information to the user through Wi_FiBacPac + Remote compatible. There are many remote areas or whose medium is improper to a direct human intervention. That is why the development of such a family of autonomous robots is extremely useful.