Browsing Mechanical Engineering by Title
Now showing items 351-370 of 465
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Participating media for volumetric heat generation
(Yıldız Teknik Üniversitesi, 2019-01)When an electromagnetic wave interacts with participating media (e.g. particulate media); the intensity of the radiation may be changed by the absorption, emission and scattering phenomena. Subsequently, the incident ... -
Particle based investigation of self-heating effect of phosphor particles in phosphor converted light emitting diodes
(Elsevier, 2021-03)Since 2003, self-heating effect of phosphor which reduces the efficacy and reliability of phosphor conversion (Pc) light emitting diodes (LEDs), has been a growing research area of opto-thermal Pc-LED modeling. However, ... -
Particle size analysis on wide size distribution powders; effect of sampling and characterization technique
(Elsevier, 2015-01)Particle size distribution of powders plays a very important role in determining the critical chemical and physical properties of the particulate systems. Precise determination of particle size distribution depends on ... -
Pattern generation and compliant feedback control for quadrupedal dynamic trot-walking locomotion: experiments on roboCat-1 and hyQ
(Springer Science+Business Media, 2015-04)In this paper, we introduce a method that synergistically combines an analytical pattern generator and a feedback controller frame, which are developed for the purpose of synthesizing dynamic quadrupedal trot-walking ... -
The penetration of acoustic cavitation bubbles into micrometer-scale cavities
(Elsevier, 2016)The penetration of acoustically induced cavitation bubbles in micrometer-scale cavities is investigated experimentally by means of high-speed photography and acoustic measurements. Micrometer-scale cavities of different ... -
Performance of two real-life California bridges under regional natural hazards
(2016-03)The performance of two real-life California bridges is assessed under a possible regional multihazard condition involving floods and earthquakes. For flood events with varied frequency, expected scour depths at bridge piers ... -
Personal inertial navigation system assisted by mems ground reaction sensor array and interface ASIC for GPS-denied environment
(IEEE, 2018-11)A personal inertial navigation system (PINS) assisted by a microelectromechanical systems (MEMS)-based 13 × 26 ground reaction sensor array (GRSA) and a low-power interface application-specified integrated circuit (ASIC) ... -
Personal inertial navigation system employing MEMS wearable ground reaction sensor array and interface ASIC achieving a position accuracy of 5.5m over 3km walking distance without GPS
(IEEE, 2018)An accurate personal inertial navigation system under GPS-denied environment is highly critical for demanding applications such as firefighting, rescue missions, and military operations. Location-aware computation for ... -
A personal navigation system using mems-based high-density ground reaction sensor array and inertial measurement unit
(IEEE, 2015)This paper describes a prototype personal navigation system developed for position tracking under GPS denied environments by employing a commercial inertial measurement unit (IMU) and a MEMS-based ground reaction sensor ... -
Photocatalytic and antibacterial functionality evaluation of nanoboron coated textiles
(2016-09-01)Antibacterial properties of boron-containing compounds are well known although studies available on pure boron nanoparticles are relatively limited. In the present study, we examine the feasibility of the application of ... -
The photocatalytic effects of textile materials treated with TiO2 and Fe/TiO2
(Institutul Naţional de Cercetare-Dezvoltare pentru Textile şi Pielărie, 2015)The research has been focused on the photocatalytic activity of the textile materials treated with TiO2 and TiO2 iron doped by pad-dry-cure and cationization - pad-dry-cure. The fabrics have been exposed to UV and visible ... -
Plasmon coupling between complex gold nanostructures and a dielectric substrate
(The Optical Society, 2018-10-20)Intercoupling of an incident electric field in metal nanoparticles causes asymmetric distribution of surface charges, which eventuates in shifting of the surface plasmon resonance frequency. This feature can be used in ... -
Plasmonic responses of metallic/dielectric core-shell nanoparticles on a dielectric substrate
(IOP Publishing, 2019-06)The effect of material selection on the plasmonic response and local absorption are evaluated for core- shell nanoparticles placed over a BK7 glass substrate. Eight different core-shell pairs are studied using the vectorized ... -
Polarization imaging of multiply-scattered radiation based on integral-vector Monte Carlo method
(Elsevier, 2010-01)A new integral-vector Monte Carlo method (IVMCM) is developed to analyze the transfer of polarized radiation in 3D multiple scattering particle-laden media. The method is based on a “successive order of scattering series” ... -
Polyethylenimine modified and non-modified polymeric micelles used for nasal administration of carvedilol
(American Scientific Publishers, 2015)This study evaluates the ability of polyethylenimine-modified and non-modified polymeric micelles to enhance permeation through the nasal mucosa for a highly hydrophobic model drug. Carvedilol was loaded into polyethylen ... -
Polymer-particle enhanced visible light range photocatalytic activity on textile applications
(Hosokawa Powder Technology Foundation, 2021)Extension of photocatalytic activity within the visible light range has an immense importance on the ability of manufacturing self-cleaning textiles that are active indoors. This study focuses on assisting problems, which ... -
Pool boiling critical heat flux in dielectric liquids and nanofluids
(Elsevier, 2011)With the recent advances in consumer and power electronics, efficient thermal management of high heat flux components has taken on new urgency. While its inherent advantages have made air cooling the method of choice for ... -
Pool boiling heat transfer in dielectric fluids and impact of surfaces on the repeatability
(ASME, 2022)This study presents an experimental investigation on the nucleate boiling heat transfer (NBHT) in deionized (DI) water and HFE-7100 on bare copper surfaces. The experiments were performed under atmospheric condition at 0 ... -
A preconditioned multigrid for simulation of atmospheric flow and wind turbine wakes
(Elsevier, 2015-11-20)This paper demonstrates a low Mach number preconditioning formulation for high Reynolds number, low Mach number atmospheric flows. The preconditioning is implemented together with multigrid approach into a multistage solver ... -
Predicting heat transfer for low- and high-frequency central-orifice synthetic jets
(IEEE, 2016-04)As electronic devices are becoming more compact each day, the more effective and efficient active cooling technologies are needed. Microfluidic devices, such as synthetic jets, serve as a potential candidate to fulfill the ...
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