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The means and the cooling processes of the heat generating working machinery in industry are essential. Their performance depends on their ability to evacuate generated heat outside the working assembly to the air. A very effective and widespread method often used in engineering employs the fins. They act as a thermal bridge between the heating wall and the reactive medium. However, their design is...
The annual mean temperature is very low in high cold region of china. The insulating and heating measures on the basis of the energy requirement analysis of biogas project are needed to ensure the normal running of fermentation process. In this paper, the heat calculation about a large-scale biogas fermentation system of Heilongjiang province was done according to the basic principles of engineering...
Anisotropic Conductive films (ACFs) have been widely used in semiconductor and display applications for chip-on-glass (COG), flex-on-glass (FOG), flex-on-board (FOB), chip-on-flex (COF), chip-on-board (COB) interconnections due to their green and energy saving, fine-pitch capability, simple process, and cost effectiveness. There have been many technical innovations in terms of materials and processing...
Infrared thermography IRT itself is theoretically well understood in terms of quantum physics and hence widely used as practical non-invasive diagnostic tool. Obtained thermographs are digitalized and stored, supporting detailed statistical analyses and, if required, distance measurements. This paper reports development of the setup for image processing optimization using infrared camera. Our goal...
This paper describes the development and the application of a low-cost manual micro assembly system with an integrated heater. The presented system consists basically of a massive frame to dampen vibrations, of an observation unit, of a heating element with a 2-point temperature controller, and of an exchangeable vacuum gripper for the deposition of a work piece on a target substrate which is mounted...
Copper (Cu) wire development started in the early 1980's as the cost for semiconductor manufacturing has become competitive and challenging with the increase of gold price. The lessons learned along the research and studies carried out, helped the industry to understand the subtleties and facts about Cu wire bonding process. The most common and important facts about Cu wire bonding is its sensitivity...
This work, for the first time, presents the performance comparison between the lately proposed vertical confined-chacogenide phase change memory with thin metal interlayer (CCTMI) and a newly proposed optimised lateral (LP) phase change random access memory structure with a 180nm feature size. High programming current has been a critical challenge to realize a high-density. Comparison of its performance...
Liquefied-pressure gases (LPG) are transportedand stored in the liquid phase in close tanks undersufficiently high pressure. In the case of an accident, anabrupt tank unsealing may release enormous quantity ofevaporating gas and energy that has a destructive effect onthe tank and its surroundings. In this paper, the mechanism,conditions, characteristics and damage involved in BLEVEaccident happening...
Microcantilevers are versatile platform for sensing applications. The interaction of APTES coated microcantilevers with different volatile substances and TNT is studied. While the interaction of the studied volatiles with APTES is labile, the interaction of TNT with APTES is strong giving rise to high sensitivity and selectivity. Moreover, the experiments done with TNT are at air atmosphere, showing...
The band emissivity of material thermal radiation under static heating condition is generally measured by trial-error and manual adjustment method of emissivity set value from radiation thermometer. But, this currently measurement method exists the drawback of time consuming to adjust the set emissivity value of radiation thermometer, which result into the incapacity for measurement under dynamic...
The main failure mechanisms of high power diode lasers such as material defects, mirror damage and solder related failures as well as to methods which significantly suppress the occurrence of catastrophic failure and solder related failures are investigated in this paper. Meanwhile, in order to obtain the lifetime data of high power QCM cm-bar arrays, we have set up an automated diode array reliability...
Broad thermal emission spectrum has been successfully converted into a narrow spectrum by using intersubband-transitions in quantum wells and photonic crystal band-edge resonant effects.
This paper presents a multi phase induction system modeling for a metal disc heating. This architecture leads to a reduced element system, without any coupling transformers, phase loop, mobile screens or mobile magnetic cores. The model is based on simplified equivalent models but takes into account data extracted from finite element software concerning the energy transfer between the inductor currents...
A solid-state potentiometric CO2-sensor of the type CO2, O2, Au, Li2CO3-BaCO3 | Nasicon | Na2Ti6O13-TiO2, Au, O2, CO2 was fully manufactured in planar thick-film technology. Due to an integrated screen-printed heater on the rear side, the sensor can be applied in a small tube for breath analysis, despite its high working temperature of 525 °C. The sensor is insensitive to variations of the oxygen...
Allotropes to graphene, carbon nanofibers (CNFs) are one of many potential materials for consideration in next generation devices. Because of their high thermal and electrical conductivity they are ideal for use as interconnects. The purpose of this work is to develop a technology computer-aided design (TCAD) device model to recreate the experiments by the Santa Clara University (SCU) [1] concerning...
This paper presents a neural network controller in model reference adaptive controller (MRAC) for steam temperature regulation in steam distillation process. Steam temperature is one of the most significant parameters that can influence the composition of essential oil yield. Due to parameter variations and changes in operational conditions during distillation, a robust steam temperature controller...
Robust climbing in unstructured environment has been one of the long-standing challenges in robotics research. Among others, the control of large adhesion forces is still an important problem that significantly restricts the locomotion performance of climbing robots. The main contribution of this paper is to propose a novel approach to autonomous robot climbing which makes use of Hot Melt Adhesion...
Thermal interface resistance of solids is an important factor for heat conduction from one solid to another. Interface resistance disrupts heat flow in systems like CPUs and various solid state devices like LEDs. Interface materials play an important role in heat transport through interface. In this study, Al203 with different thickness was coated on a copper substrate. The overall thermal conductivity...
Thermal interface resistance of solids is an important factor for heat conduction from one solid to another. Interface resistance disrupts heat flow in systems like CPUs and various solid state devices like LEDs. Interface materials play an important role in heat transport through an interface. In this study, TiN/Ti with different Ti thickness and Ti/TiN was coated on a copper substrate. In general...
The new system combined with mine and torpedo is an ideal new weapons system, which has a lot of advantages, including of good hidden characteristic, strong anti-sweep characteristic, high survival rate, big regional control, large dosage and good attack effect. It is a kind of good weapon in the water based on higher cost-effective and strategic value. The deep submarine of torpedoes and the scope...
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