Browsing Mechanical Engineering by Title
Now showing items 164-183 of 350
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Identification and evaluation of cracks in electrostatically actuated resonant gas sensors using Harris Hawk / Nelder Mead and perturbation methods
(Techno-Press, 2021-01)In this paper we study the static deflection, natural frequency, primary resonance of an electrostatically actuated cracked gas sensor. Besides, a novel hybrid metaheuristic algorithm is proposed to detect the location and ... -
Image registration method for mobile-device-based multispectral optical diagnostics for buildings
(The Optical Society, 2019-09-10)The recent advances in mobile device hardware and software introduced new opportunities to perform more advanced computation and measurements for buildings. Multispectral optical imaging is a widely recognized technique ... -
Impact of electronics over localized hot spots in multi-chip white LED light engines
(IEEE, 2019)In recent years, demand towards high power white LEDs has risen significantly covering a wide range of application areas. While many industries prefer more light extraction using less number of LED chips on their luminaires, ... -
Impact of functional nanofluid coolant on radiator performance
(ASME, 2019-08)While a number of liquids are preferred in many heating and cooling applications, their thermal capacity can be a limiting factor in many thermal systems. Therefore, a series of methods such as use of mixtures of two or ... -
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 ... -
Impact of orifice location on the mechanical response of side and central orifice synthetic jets
(2018-07-24)Synthetic jets have been at the focus of a number applications including flow control and thermal management of microelectronics due to their unique characteristics of transferring linear momentum through a flow structure ... -
Impact of orifice size over mechanical, flow and thermal performances of synthetic jets
(IEEE, 2018-07-24)Recent electronic systems require more aggressive cooling solutions due to their high functionality, densely packaged components and localized heating compared to low functionality systems in the last decade. Synthetic ... -
Impact of pad conditioning on thickness profile control in chemical mechanical planarization
(Springer Science+Business Media, 2013-01)Chemical mechanical planarization (CMP) has been proven to be the best method to achieve within-wafer and within-die uniformity for multilevel metallization. Decreasing device dimensions and increasing wafer sizes continuously ... -
Improvement of the computational efficiency of metaheuristic algorithms for the crack detection of cantilever beams using hybrid methods
(Taylor & Francis, 2022-07-03)This study examines the capability of various optimization algorithms and proposes novel hybrid algorithms for more precise prediction of open-edge cracks in cantilever beams. The natural frequencies of the beam with a ... -
Improvement of the fatigue performance of an ultrafine-grained Nb–Zr alloy by nano-sized precipitates formed by internal oxidation
(Elsevier, 2008-04)The formation of nano-sized precipitates in an ultrafine-grained Nb–Zr alloy was investigated. ZrO2 precipitates induced by internal oxidation during heat treatment at low homologous temperatures significantly intensify ... -
Improving selectivity on germanium CMP applications
(ECS, 2014)In the presented paper, the adsorption characteristics of cationic and anionic surfactants on germanium and silica were studied in order to improve selectivity in germanium based shallow trench isolation chemical mechanical ... -
Improving the safety of medical robotic systems
(IEEE, 2018-10-09)The significance of the robots in the medical field have been increasing rapidly. Humans and robots working together increases the strengths and decreases the limitations of surgical operations. Human life makes safety the ... -
Influence of heat treatment parameters on the functional behavior and corrosion performance of a shape memory wire actuator
(Trans Tech Publications Ltd, 2020-04)In the present study, the effect of heat treatment parameters on the functional response, corrosion behavior and microstructural evolution of NiTi shape memory alloys were investigated. Various heat treatment regimes were ... -
Influence of turbulent flow characteristics on flame behaviour in diffuser combustors
(Elsevier, 2019-03-01)The influence of turbulence on flame location in a diffuser-type combustor is the focus of this study. Two types of diffuser combustors were selected to study the influence of turbulence intensity and length scale on flame ... -
Influence of warm rolling and aging on the microstructural evolution and mechanical behavior of AZ31 magnesium alloy
(American Institute of Physics Inc., 2019)The microstructural evolution and tensile properties of AZ31 after warm rolling and different aging methods and conditions were investigated. The warm rolling was conducted on the as-received AZ31 after homogenization at ... -
Integrated engineering and architecture for the energy efficient academic buildings
(International Building Performance Simulation Association, 2015-12)In this paper, we outline a comprehensive and integrated collaboration between engineering and architecture team to build an energy efficient building. Within the framework of the EU FP7 project, titled NEED4B, we have ... -
An integrated homogenization–based topology optimization via RBF mapping strategies for additively manufactured FGLS and its application to bandgap structures
(Springer Nature, 2020)The manufacturing of lattice structures has been greatly facilitated thanks to the advances in additive manufacturing. Functionally graded lattice (FGL) structures, a major class of such structures, developed using topology ... -
Integrating magnetic heads with plasmonic nanostructures in multilayer configurations
(IEEE, 2013-07)Heat-assisted magnetic recording (HAMR) is an emerging technology that has increased the areal density of conventional recording techniques for hard disc drives. Integrated heads have enabled this increase through localized ... -
Interaction between free-stream turbulence and tip-vortices of wind turbine blades with and without winglets
(IOP Publishing, 2018)Experimental investigations of the free-stream turbulence impact on the tip-vortices generated in wind turbine blades have been performed. The investigation is done by exposing an efficient laboratory scale wind turbine ... -
An investigation into flow and heat transfer for a slot impinging synthetic jet
(Elsevier, 2016-09)According to the latest trends in miniature consumer and military electronics, there is a need for compact cooling solutions to meet performance requirements at compact volumes. Successful technology must feature a thin ...
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