background: it has been prover that the prevalence of experiencing job related stress is very high among the dentists. this stress can be the result of factors such as poor lightening of dental office and noise. this stress can cause emotional distress and threaten dentists’ physical health and affect the quality of their life. this study is conducted to determine dentists’ professional quality...

3D integration technology can provide significant benefits of reduced interconnection delay and low power consumption in designing multi-core processors. However, the 3D integration technology magnifies the thermal challenges in multi-core processors due to high power density caused by stacking multiple layers vertically. For this reason, the 3D multi-core architecture cannot be practical witho...

Gallium nitride (GaN) is an III-V semiconductor with a direct band-gap of 3.4 eV. GaN has important potentials in white light-emitting diodes, blue lasers, and field effect transistors because of its super thermal stability and excellent optical properties, playing main roles in future lighting to reduce energy cost and sensors to resist radiations. GaN nanomaterials inherit bulk properties of ...

Three-dimensional (3D) integration has the potential to improve the communication latency and integration density of chip-level multiprocessors (CMPs). However, the stacked high power density layers of 3D CMPs increase the importance and difficulty of thermal management. In this paper, we investigate the 3D CMP run-time thermal management problem and describe efficient management techniques. Th...

We present investigations on the impact of material-integrated sensors with the help of finite element-based modeling. A sensor (inlay) integrated with a material (matrix) is always a foreign body in the material, which can lead to a "wound effect", that is degradation of the macroscopic behavior of a material. By analyzing the inlay's impact on the material in terms of mechanical load, heat co...

As power consumption and the corresponding heat dissipated on a die grow rapidly, efficient on-chip temperature regulation becomes imperative for today’s high performance microprocessors. Temperature tracking based on the on-chip thermal sensors is not sufficient as the temperature hot spots keep changing with the load. One way to mitigate this problem is by means of software sensors, where tem...

In this chapter, we investigate repetitive human activity patterns and individual recognition in thermal infrared imagery, where human motion can be easily detected from the background regardless of the lighting conditions and colors of the human clothing and surfaces, and backgrounds. We employ an efficient spatio-temporal representation for human repetitive activity and individual recognition...

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Light emitting diodes (LEDs) have become an effective lighting solution because of the characteristics energy efficiency, flexible controllability and extended lifetime. They find use in numerous systems for residents, industries, enterprises street applications. The efficiency trustworthiness LED considerably based on thermal mechanical loading improved several degradation schemes respective i...