Browsing Mechanical Engineering by Author "1"
Now showing items 1-20 of 179
-
Absorption and plasmon resonance of bi-metallic core-shell nanoparticles on a dielectric substrate
Avşar, D.; Ertürk, H.; Mengüç, Mustafa Pınar (Begell House Inc., 2019-06)Numerical investigation of absorption efficiency profiles and localized surface plasmon resonance (LSPR) wavelengths are performed for metallic core-shell nanoparticles (NPs) placed over a BK7 glass substrate. Gold (Au) ... -
Absorption suppression of silver nanoparticles in the presence of an AFM tip: A harmonic oscillator model
Huda, G. M.; Mengüç, Mustafa Pınar; Hastings, J. T. (AIP, 2012)We numerically calculated the optical absorption of silver nanoparticles (AgNP) in the presence of metallic and dielectric AFM probes, illuminated by transverse magnetic (TM) polarized, total internal reflected waves. ... -
Active compliance control reduces upper body effort in exoskeleton-supported walking
Uğurlu, Regaip Barkan; Oshima, H.; Sariyildiz, E.; Narildyo, T.; Babic, J. (IEEE, 2020-04)This article presents a locomotion controller for lower limb exoskeletons so as to enable the combined robot and user system to exhibit compliant walking characteristics when interacting with the environment. This is of ... -
Analysis of near-field radiation transfer within nano-gaps using FDTD method
Didari, Azadeh; Mengüç, Mustafa Pınar (Elsevier, 2014-10)Enhancement of near-field radiative emission via coupling of surface plasmons in nano-gaps formed between thin films is important for understanding and implementation of energy harvesting using nano-thermophotovoltaic ... -
Analysis of perlite and pumice based building insulation materials
Çelik, S.; Family, Roxana; Mengüç, Mustafa Pınar (Elsevier, 2016-06)Insulation panels composed of perlite, pumice, and cement were fabricated. Perlite and pumice were used to achieve high thermal resistance, and low density. Experimentation was conducted for determining R-values of ... -
Analysis of sustainable materials for radiative cooling potential of building surfaces
Family, Roxana; Mengüç, Mustafa Pınar (MDPI AG, 2018)The main goal of this paper is to explore the radiative cooling and solar heating potential of several materials for the built environment, based on their spectrally-selective properties. A material for solar heating, ... -
Assessments on the improved modelling for pneumatic artificial muscle actuators
Peternel, L.; Uğurlu, Regaip Barkan; Babic, J.; Morimoto, J. (IEEE, 2015)In this paper, we present an analysis regarding the pneumatic air muscle modelling, with a particular emphasis on the exoskeleton robot control. We propose two calibration approaches for obtaining the model identification ... -
A biomimicry design for nanoscale radiative cooling applications inspired by Morpho didius butterfly
Didari, Azadeh; Mengüç, Mustafa Pınar (Nature Publishing Group, 2018-11-15)In nature, novel colors and patterns have evolved in various species for survival, recognizability or mating purposes. Investigations of the morphology of various butterfly wings have shown that in addition to the pigmentation, ... -
Biomimicry designs for passive optical solutions for nanoscale radiative cooling applications
Didari, Azadeh; Mengüç, Mustafa Pınar (SPIE, 2018)Inspired by the mechanism of the wings of Morpho butterfly, here we propose biomimicry designs which have the potential to be used for radiative cooling purposes. We numerically analyzed the spontaneous emission at near-field ... -
Boiling heat transfer enhancement of magnetically actuated nanofluids
Şeşen, M.; Tekşen, Y.; Şahin, B.; Şendur, K.; Mengüç, Mustafa Pınar; Koşar, A. (AIP, 2013)Nanofluids offer a potential breakthrough as next-generation heat transfer fluids since they offer exciting new possibilities to enhance heat transfer performance compared to pure liquids. A major drawback for using ... -
Calibration of 2D ultrasound in 3D space for robotic biopsies
Ahmad, A.; Çavuşoğlu, M. C.; Bebek, Özkan (IEEE, 2015)Freehand Ultrasound technique is widely used in intraoperative biopsy procedures for detecting the volumes of interest. Freehand ultrasound probe is faster and flexible with 6 degrees of freedom. Thats why the imaging ... -
The cauchy problem for a one-dimensional nonlinear elastic peridynamic model
Erbay, Hüsnü Ata; Erkip, A.; Muslu, G. M. (Elsevier, 2012-04-15)This paper studies the Cauchy problem for a one-dimensional nonlinear peridynamic model describing the dynamic response of an infinitely long elastic bar. The issues of local well-posedness and smoothness of the solutions ... -
Challenges for radiative transfer 1: towards the effective solution of conjugate heat transfer problems
Howell, J. R.; Mengüç, Mustafa Pınar (Elsevier, 2018-12)This paper lists crucial challenges in radiative transfer with the objective of gathering information on improving and choosing methods for solving conjugate heat transfer problems. Developments in computational and ... -
Characteristics of low reynolds number steady air jet impingement heat transfer over vertical flat surfaces
He, X.; Lustbader, J. A.; Arık, Mehmet; Sharma, R. (IEEE, 2012)In this paper, heat transfer characteristics of single-slot steady-impinging air jets on a 25.4 mm × 25.4 mm vertical surface were experimentally investigated. The experiments were conducted with four different nozzles ... -
Characterization and antibacterial properties of nanoboron powders and nanoboron powder coated textiles
Akbar, Wazir; Noor, M. R.; Kowal, K.; Syed, T.; Soulimane, T.; Başım, Gül Bahar (Elsevier, 2017-02)The antibacterial properties of boron-containing compounds are well known although there are limited studies available on the pure boron nanoparticles. In this paper, nanoboron particles are characterized in terms of their ... -
Characterization of turbulence generated by an active grid with individually controllable paddles
Skeledzic, T.; Krauss, J.; Lienhart, H.; Ertunç, Özgür; Jovanovic, J. (Springer, 2018)An active grid with individually controllable paddles was constructed to generate strong turbulence (Reλ>200). Measurements of turbulence quantities using the hot-wire technique were conducted in a wind tunnel along the ... -
Coexistence of multiple regimes for near-field thermal radiation between two layers supporting surface phonon polaritons in the infrared
Francoeur, M.; Mengüç, Mustafa Pınar; Vaillon, R. (American Physical Society, 2011)We demonstrate the coexistence of different near-field thermal radiation regimes between two layers supporting surface phonon polaritons (SPhPs) in the infrared. These regimes existwhen the distance of separation between ... -
Colloidal aluminum antimonide quantum dots
Jalali, H. B.; Sadeghi, S.; Şahin, M.; Öztürk, Hande; Ow-Yang, C. W.; Nizamoglu, S. (American Chemical Society, 2019-07-09)AlSb is a less studied member of the III–V semiconductor family, and herein, we report the colloidal synthesis of AlSb quantum dots (QDs) for the first time. Different sizes of colloidal AlSb QDs (5 to 9 nm) were produced ... -
Comparison between discrete dipole approximation and other modelling methods for the plasmonic response of gold nanospheres
Loke, Vincent L. Y.; Huda, G. M.; Donev, E. U.; Schmidt, V.; Hastings, J. T.; Mengüç, Mustafa Pınar; Wriedt, T. (Springer Science+Business Media, 2014-05)We investigate the plasmonic response of gold nanospheres calculated using discrete dipole approximation validated against the results from other discretization methods, namely the finite-difference time-domain method and ... -
Comparison of synthetic and steady air jets for impingement heat transfer over vertical surfaces
Arık, Mehmet; Sharma, R.; Lustbader, J.; He, X. (IEEE, 2012)Natural convection air cooling is the method of choice for many low-power electronics applications due to cost, availability, and reliability considerations. This method is not only limited to low-power applications, but ...
Share this page