Güncel Gönderiler: Mekatronik Mühendisliği Bölümü Koleksiyonu
Toplam kayıt 39, listelenen: 21-39
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Design criteria for a high energy Compton Camera and possible application to targeted cancer therapy
(Iop Publishing Ltd, 2015)The proposed research focuses on the design criteria for a Compton Camera with high spatial resolution and sensitivity, operating at high gamma energies and its possible application for molecular imaging. This application ... -
GamSim - a windows-based simulation tool for Gamma-Ray detector development
(Ieee, 2016)After the introduction of radiation simulation tools such as Geant4 or EGS in nuclear and high energy physics, the use in applied fields like nuclear medicine becomes increasingly important and a number of extensions have ... -
A new spectroscopic imager for X-rays from 0.5 keV to 150 keV combining a pnCCD and a columnar CsI(Tl) scintillator
(Iop Publishing Ltd, 2017)By combining a low noise fully depleted pnCCD detector with a columnar CsI(Tl) scintillator an energy dispersive spatial resolving detector can be realized with a high quantum efficiency in the range from below 0.5 keV to ... -
A lyapunov based model reference adaptive control of a quadrotor
(Ieee, 2017)Model reference adaptive controller is proposed to control the position of a quadrotor with uncertain model parameters. The controller design procedure is provided considering position and attitude dynamics as outer and ... -
Single-shot full strain tensor determination with microbeam X-ray Laue diffraction and a two-imensional energy-dispersive detector
(Int Union Crystallography, 2017)The full strain and stress tensor determination in a triaxially stressed single crystal using X-ray diffraction requires a series of lattice spacing measurements at different crystal orientations. This can be achieved using ... -
Applications of a pnCCD detector coupled to columnar structure CsI(Tl) scintillator system in ultra high energy X-ray Laue diffraction
(Iop Publishing Ltd, 2017)Most charge coupled devices (CCDs) are made of silicon (Si) with typical active layer thicknesses of several microns. In case of a pnCCD detector the sensitive Si thickness is 450 mu m. However, for silicon based detectors ... -
Strain hardening reduces energy absorption efficiency of austenitic stainless steel foams while porosity does not
(Elsevier Sci Ltd, 2018)Strain hardening significantly affects the mechanical function of steel foams. We compare hardening and failure of two commercially available austenitic stainless steel foams (316L and 310) spanning strut porosities of 9.4 ... -
An adaptive block backstepping controller for a quadrotor
(Ieee, 2018)An adaptive block backstepping controller is proposed to control the position of a quadrotor with uncertain model parameters. The controller design procedure is provided considering the stability of six blocks involving ... -
Hexagonal quadrature amplitude modulation aided spatial modulation
(Ieee, 2019)In this study, a new multiple-input multiple-output (MIMO) transmission scheme with energy-efficiency is proposed by combining spatial modulation (SM) and energy-efficient hexagonal quadrature amplitude modulation (HQAM) ... -
Foams of gray cast iron as efficient energy absorption structures: a feasibility study
(Wiley-V C H Verlag Gmbh, 2019)Gray cast iron foams, were produced using a reticulated polyurethane by using a modified investment casting process. To evaluate the attributes of the produced micro-geometries, foam segments and single struts are investigated ... -
Electrical impedance analysis of carbon nanotube/epoxy nanocomposite-based piezoresistive strain sensors under uniaxial cyclic static tensile loading
(Sage Publications Ltd, 2020)Carbon nanotubes-based nanocomposites have gained a great amount of attraction and play a key role in the realization of strain sensors owing to their remarkable physical properties. In this study, the piezoresistivity of ... -
Code-index modulation aided quadrature spatial modulation for high-rate MIMO systems
(Ieee-Inst Electrical Electronics Engineers Inc, 2019)In this correspondence paper, a novel code-index modulation (CIM) aided quadrature spatial modulation (QSM) scheme, called CIM-QSM, is proposed for highly spectrum and energy efficient multiple-input multiple-output (MIMO) ... -
Single steel strut mechanical testing: challenges and future research directions
(Taylor & Francis Ltd, 2019)Open-cell stainless steel foams, composed of hollow struts, are excellent candidates for energy absorption and thermo-mechanical applications. The basic mechanical element responsible for the function of these foams is the ... -
Influence of heat treatment temperature on the microstructural, mechanical, and wear behavior of 316L stainless steel fabricated by laser powder bed additive manufacturing
(Springer London Ltd, 2020)A metal component fabricated by additive manufacturing (AM) is generally required to be heat treated to enhance microstructural and mechanical aspects. This present study aims to contribute to the literature in understanding ... -
Investigation of temperature effect on the electrical properties of MWCNTs/epoxy nanocomposites by electrochemical impedance spectroscopy
(Taylor & Francis Ltd, 2020)This study investigates the impact of the temperature exposure on the electrical properties of the multi-walled carbon nanotubes (MWCNTs)/epoxy based nanocomposites for the temperature range from 20 degrees C to 80 degrees ... -
Effects of the cell number and anisotropy in the open cell metal foams on the energy absorption efficiency
(Pamukkale Univ, 2020)By means of cellular structure, open cell metal foams can be used as a light-weight material, and they can absorb impact energy effectively. In this study, effects of cell number and anisotropy in 30 and 45 ppi (pores per ... -
Cooperative quadrature spatial modulation with Euclidean distance and capacity optimized antenna selection
(Wiley, 2021)In this study, new cooperative-quadrature spatial modulation techniques based on Euclidean distance and capacity optimized antenna selection techniques (EDAS-CQSM and COAS-CQSM) are proposed for cooperative communication ... -
In situ shear behavior of open-cell austenitic 316L steel foams
(Elsevier Science Sa, 2020)Foam cores in crash boxes are subjected to large shear forces during crash situations. Here, the failure behavior of 316L open-cell stainless steel foams under shearing conditions was investigated. A custom-made grip system ...
