Mechanical Engineering: Recent submissions
Now showing items 281-300 of 465
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Numerical and experimental analysis of impinging synthetic jets for cooling a point-like heat source
(ASME, 2018-05-01)High power light emitting diodes (LEDs) being used for low and high beam in automotive lighting need active cooling of their heat sinks by radial or axial fans. But the moving elements of the fan cause abrasion, noise, and ... -
Controlled thermal design of LED SLIM TV systems
(IEEE, 2017)The market trend of global TV industry is nourished due to recent advancements in optical component technology and user expectations. Due to strong market requirement for slimmer mechanical designs (<;10mm) and increased ... -
An experimental and computational investigation of a thin piezofan cooler
(IEEE, 2017)Recent trends in electronic cooling systems are targeted towards a reduction in size, therefore small form factor/miniature cooling devices are of interest to various applications. Among these devices are piezoelectric ... -
Impact of junction temperature over forward voltage drop for red, blue and green high power light emitting diode chips
(IEEE, 2017)Commercially available light emitting diodes (LEDs) that have high efficiencies and long lifetime are offered in advanced packaging technologies. Many cooling systems were developed for current LED systems that enable a ... -
Acoustic analysis of an axial fan
(IEEE, 2017)Axial fans are often used in cooling electronic enclosures where low noise levels are highly demanded. Therefore, methods for predicting the noise emitted by an application including single or multiple fans are desirable ... -
Numerical and experimental analysis of a heat-pipe-embedded printed circuit board for solid state lighting applications
(Taylor & Francis, 2019-01-02)Thermal management is one of the main issues for electronics cooling especially for tightly packaged PCBs that experience local heat generation. Thus, theoretical and experimental investigations have been conducted to ... -
Optimized process and tool design for gan chemical mechanical planarization
(The Electrochemical Society, 2017-10-04)In this paper, we present a systematic approach to the gallium nitride (GaN) chemical mechanical planarization (CMP) process through evaluating the effect of crystallographic orientation, slurry chemistry and process ... -
Effects of turbulence intensity and length scale on the flame location of premixed turbulent combustion in a diffuser combustor
(J-STAGE, 2017)This study focused on the dependency of the flame location of a premixed propane-air flame on turbulence intensity and length scale. The flame location was investigated using a diffuser-type combustor to show the response ... -
A methodology to design multi-axis test rigs for vibration and durability testing using frequency response functions
(2017-06-25)The multi-axis simulators are designed for experimental verification of the safe functioning of large components and subsystems under real world customer usage in vibration and durability testing. Transformation of the ... -
Materials for radiative cooling: a review
(Elsevier, 2017)Buildings use more than one-third of the total energy consumed in counties within the Mediterranean climate zones like in Turkey. During the summer months, the absorption of solar energy by the buildings increases the ... -
Visual tracking of multiple moving targets in 2D ultrasound guided robotic percutaneous interventions
(IEEE, 2017)Percutaneous needle procedures are mostly carried out with the guidance of 2D ultrasound (US) imaging. US images are inherently noisy and their resolutions are low. Hence, target tracking can be challenging. Image based ... -
Subcooled flow boiling heat transfer of γ-Al2O3/water nanofluids in horizontal microtubes and the effect of surface characteristics and nanoparticle deposition
(Elsevier, 2017)In this study, subcooled flow boiling heat transfer characteristics of nanofluids were investigated at micro scale. For this purpose, the effect of γ-Al2O3 (gamma-alumina) nanoparticles with an average solid diameter of ... -
Thermal performance of a light emitting diode light engine for a multipurpose automotive exterior lighting system with competing board technologies
(ASME, 2017-06-12)In recent years, light emitting diodes (LEDs) have become an attractive technology for general and automotive illumination systems replacing old-fashioned incandescent and halogen systems. LEDs are preferable for automobile ... -
A design tool for direct and non-stochastic calculations of near-field radiative transfer in complex structures: The NF-RT-FDTD algorithm
(Elsevier, 2017)Advances in nanotechnology and nanophotonics are inextricably linked with the need for reliable computational algorithms to be adapted as design tools for the development of new concepts in energy harvesting, radiative ... -
The eighth international symposium on radiative transfer
(Elsevier, 2017-08)This Special Issue of The Journal of Quantitative Spectroscopy and Radiative Transfer is based on the papers selected from RAD-16, the Eighth International Symposium on Radiative Transfer, which was held June 2016, in ... -
Surface characterization driven CMP optimization for gallium nitride
(ECS, 2016)Gallium nitride is a hard and chemically inert material demoting high material removal rates in the chemical mechanical planarization (CMP) applications. This paper focuses on the optimization of the process conditions to ... -
Metal oxide thin film characterization for new generation chemical mechanical planarization development
(The Electrochemical Society, 2016)This study targets to create a basis for the process development in the new generation semiconductor industry dealing with atomic scale devices. We focus on the CMP process development as it is used for the current and ... -
Effect of the probe location on the absorption by an array of gold nano-particles on a dielectric surface
(Elsevier, 2017)Effect of silicon atomic force microscope probe position and particle spacing on the local absorption of an array of gold nanoparticles placed over a dielectric borosilicate glass surface are evaluated. An improved, ... -
Effect of chemical mechanical polishing on surface nature of titanium implants FT-IR and wettability data of titanium implants surface after chemical mechanical polishing implementation
(Elsevier, 2017)Bioactivity of titanium depends on the quality and characteristics of its surface oxide film. Through implementation of chemical mechanical polishing (CMP) process on titanium plates, a protective oxide (titania) film grows ... -
Development of an antagonistically actuated smart joint
(Trans Tech Publications, 2017)Shape memory alloys with their phase transformation properties; have been broadly implemented in smart structures. In this study, a functional design is presented where two wires actuate antagonistically to achieve motion ...
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