Browsing Mechanical Engineering by Title
Now showing items 99-118 of 465
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Developing a standard measurement and calculation procedure for high brightness LED junction temperature
(2014)White light emitting diodes (LEDs) are appearing in general illumination applications. Clusters of such LEDs can replace an incandescent light bulb of equal luminosity on the merit of considerably low power consumption. ... -
Development and 3D spatial calibration of a parallel robot for percutaneous needle procedures with 2D ultrasound guidance
(World Scientific, 2017-12-01)Robotic systems are being applied to medical interventions as they increase the operational accuracy. The proposed autonomous and ultrasound guided 5-DOF parallel robot can achieve such accuracy for needle biopsies, which ... -
Development of 3-D chemical mechanical polishing process for nanostructuring of bioimplant surfaces
(ECS, 2014)This study focuses on the development of a three dimensional chemical mechanical polishing (CMP) process to induce smoothness or controlled nano-roughness on the bio-implant material surfaces, particularly for an application ... -
Development of a computational modeling and experimental validation approach for KSF LED packages in a 65” ultra thin LED TV system
(IEEE, 2018-07-24)The customer expectations in global TV market have changed over the last decade significantly towards a thinner with a higher brightness and a wider color gamut (WCG) TV products. These requirements led to a drastic increase ... -
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 ... -
Development of figure of merits for energy efficient LED lighting systems
(IEEE, 2014)Energy has been identified as one of the most important problems during the last few years. While energy generation and new energy resources are critical, energy efficiency in production, transportation and utilization are ... -
Direct liquid cooling of high flux LED systems: hot spot abatement
(ASME, 2013)With the recent advances in wide band gap device technology, solid-state lighting (SSL) has become favorable for many lighting applications due to energy savings, long life, green nature for environment, and exceptional ... -
Direct numerical simulation of synthetic jet coupled to forced convection cooling in a channel flow
(IEEE, 2023)A synthetic jet (SJ) is a microfluidic device that uses the 'zero-net-mass-flux' concept to create a compact cooling solution and provide a net positive momentum flux to the local environment. SJs have been studied extensively ... -
Discrete dipole approximation of gold nanospheres on substrates: considerations and comparison with other discretization methods
(AAPP Physical, Mathematical, and Natural Sciences, 2011)We embark on this preliminary study of the suitability of the discrete dipole approximation with surface interaction (DDA-SI) method to model electric field scattering from noble metal nano-structures on dielectric substrates. ... -
Discrete phase analysis of self heating particles over an immersion liquid cooled high power blue light-emitting diode with suspended phosphor particles
(ASME, 2022-10)In recent years, the interaction of unrestricted particles with dispersed multiphase flows has been linked to a number of important engineering applications. Among these applications, the novel idea of immersion-cooled ... -
Discrete-dipole approximation with surface interaction: computational toolbox for MATLAB
(Elsevier, 2011-07)We describe a MATLAB toolbox that utilizes the discrete-dipole approximation (DDA) method for modelling light interaction with arbitrarily-shape scatterers in free space as well with planar surface interaction (DDA-SI). ... -
Discrete-time integral sliding mode control of a smart joint for minimally invasive surgeries
(IEEE, 2016)In this work, a shape memory alloy(SMA) actuator based joint (smart joint) is controlled using a discrete-time integral sliding mode (DISM) control to guide the motion of an active catheter. Controller is designed on the ... -
Dynamic opto-electro-thermal characterization of solid state lighting devices: measuring the power conversion efficiency at high current densities
(IOP Publishing, 2022-09-22)Solid state lighting devices with high power densities require accurate characterization, as the rise of chip temperature impacts its optical, electrical, and lifetime characteristics. A detailed experimental study is ... -
Editorial
(Elsevier, 2011-09) -
Effect of a multi-phase structure on the damping response of a novel high entropy alloy
(Elsevier, 2022-12-01)In this study, dynamic behavior of a novel multi-phase high entropy alloy (HEA) was investigated. Thermo-mechanical processes containing an 80 % thickness reduction at room temperature rolling followed by annealing at 750 ... -
Effect of actuator deflection on heat transfer for low and high frequency synthetic jets
(IEEE, 2014)Synthetic jets are being investigated over the last four decades. Researchers have been interested in its unique applications for a wide range of flow control to thermal management of electronics applications. Synthetic ... -
Effect of aging on the mechanical behavior of aluminum-steel composites processed by accumulative roll bonding
(Elsevier, 2021)Severe plastic deformation (SPD) processes have been widely used to provide ultrafine-grained (UFG) structures along with enriched strength in various metals. This study focuses on accumulative roll bonding (ARB), an SPD ... -
Effect of boronizing and WC coating on the high temperature mechanical behavior of AISI 321 stainless steel
(Trans Tech Publications Ltd, 2022)In the current paper, the effect of two different coating techniques of boronizing and tungsten carbide (WC) coating on the room and high temperature tensile behavior of the AISI 321 stainless steel were investigated. ... -
Effect of build parameters on the compressive behavior of additive manufactured CoCrMo lattice parts based on experimental design
(MDPI, 2022-07)Due to their high specific strength, toughness, and corrosion and wear resistance characteristics, CoCrMo alloys are widely used in different industries and applications: wind turbines and jet-engine components, orthopedic ... -
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 ...
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