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Electronic devices are nowadays an integral part of everyday life. The number of discarded electronic items has grown significantly over the last years. Due to the amount of precious materials used in the manufacturing of these devices recycling of electronic devices is becoming more and more important. Currently, the processes to regain some of these precious materials such as gold, copper, scarce...
In order to achieve an efficient and environment-friendly recycling of printed circuit boards (PCBs), a comprehensive analysis of their material composition is essential. Besides sophisticated chemical and physical methods for a direct material analysis, an indirect method based on information retrieval provides a less costly and more efficient alternative. During the process of information retrieval,...
The use of titanium nitride as a plasmonic material for high temperature applications such as solar/thermophotovoltaics is studied numerically and experimentally. Performance of titanium nitride is compared with widely used materials in each field.
We use titanium nitride (TiN) to demonstrate an ultra-thin plasmonic thermal emitter operating at high temperatures (830 K). The spectrally selective emitter exhibits a large emittance at around 2.5 µm and below, and suppresses emission at longer wavelengths.
Due to the complex structure and the great variability of printed circuit boards (PCBs), an accurate analysis of their material composition and consequently an efficient recycling is currently hardly possible. Facing these problems, we proposed an automated PCB recycling system with a core component for the information retrieval. As a first step towards automated recycling based on a comprehensive...
Electronic devices are nowadays an integral part of our everyday lives. The number of discarded electronical items has grown significantly over the last years. As the amount of precious materials used in the manufacturing of these devices has increased over the last years recycling of these devices is becoming more and more important. Currently the processes to regain some of these precious materials...
The trap exploration of Pt/ZnO/Pt memory cells was made. Based on the temperature dependence of I-V characteristics, the conduction mechanisms in ZnO films are dominated by the hopping conduction and ohmic conduction in high-resistance state (HRS) and low-resistance state (LRS), respectively. Simulation results show that the trap spacing and trap energy level in HRS are around 2 nm and 0.46 eV, respectively...
High Definition (HD) content delivery over IP networks is now a reality in the entertainment marketplace. Such networks can suffer packet loss, especially on the last mile link. This results in time-variant video quality. In this paper we first present an analysis of the human perception of network impairment on HD IPTV quality. Second, we propose a method, based on common objective measurements,...
This paper introduces the related concepts of employer brand and enterprise core competence and avails of theoretical analysis methods to discuss the influence of employer brand on enterprise core competence. The interview method and questionnaire method are combined to research on Doosan (China) Financial Leasing Corp‥ And then summarizes its characteristics of superior employer brand and the influence...
The co-fusion, co-existence and co-prosperity between the ecological culture and industrial clusters constitute industrial clusters' ecological cultural system which is an important carrier of regional economic development and technological innovation. Therefore, it is essential for industrial clusters to have ecological cultural innovation. This paper, on the basis of defining the ecological culture...
The purpose of this paper is to enhance the application level of Hakka culture in tourism industry. We employed the comparison analytical method between theory and fact and case study method, and took Cuiwei Mountain of Ningdu city, Jiangxi province as study object. First, we analyzed the forming process of Hakka culture and its characteristics. Then, based on the study of Cuiwei mountain Hakka culture...
Based on the characteristic of experience economy, we employed inference and contrast analysis methods, and proposed three rules for intangible cultural heritage protection with developing theory and threshold theory, which are to focus absorbing modern elements, enlarge the number of continuator, and set up the standing threshold. Then according to the characteristic of experience economy we gave...
The study between tourism souvenir development and culture in China most focus on one certain culture or one certain region, all belonging to phenomenon analysis, now there is a lack of further theoretical studies through local or specific phenomenon. The purpose of this paper is to decompose tourism souvenir core value from cultural perspective with economic theory, and then do some inference of...
Personalized learning is a critical issue in the e-learning field. In the process of developing personalized learning environments, it is necessary to consider various factors for personalized mechanism, in which the factor is used to identify the learner individuality and serves as a reference for providing e-learning materials. Hence, this paper uniformly formulates various factors into multi-objective...
To enhance the performance of a Thomson-coil actuator, generalized topology modification method is developed, and applied to the shape optimization of the conducting plate. In the method, shape optimization problem is treated as that of optimal assigning of material to each segment among available materials.
The MOP (Massive Ordnance Penetrator) is non-nuclear earth penetrator weapon which has the best damage effectiveness now. The targets of MOP will be deeply underground headquarters and hard deeply buried targets. It has been simulated by using LS-DYNA finite-element software to analyze damage effectiveness of MOP, especially the relation of minimal depth of the defense cover. and span length, which...
Three-dimensional (3D) supercapacitors have been demonstrated using vertically aligned carbon nanotubes (CNT) arrays and electroplated nickel nanoparticles. Two significant achievements have been demonstrated in this work: (1) a unique and reliable vacuum-assisted electroplating methodology for the uniform deposition of nickel nanoparticles on CNTs up to 150 ??m in length, and (2) usage of pseudo...
The compliant double parallel four-bar mechanism is a classical parallel guiding mechanism. A multiple-step beams model was established to analyze the static stiffness characteristics of the double parallel four-bar mechanism with right angle flexible hinges based on the symmetry of its structure. Formula for calculating the static stiffness was derived by applying singularity function. On the basis...
In this paper, basic principles of Hilbert-Huang transformation and the theoretical basis, based on which Hilbert-Huang transformation can be applied to analysis acoustic emission signal of fiber reinforced plastics acquired during tensile tests, are expatiated simply. Moreover, through several practical signal processing examples, it is observed that time-frequency characteristics of AE signals are...
In this paper, we extend the Langevin noise (LN) scheme to an anisotropic medium which shows loss and dispersion. And the results are compared with previous work.
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