Güncel Gönderiler: Mühendislik Fakültesi
Toplam kayıt 847, listelenen: 681-700
-
Efficiency improvement for a DC-DC quadratic power boost converter by applying a switch turn-off lossless snubber structure based on zero voltage switching
(Kaunas Univ Technology, 2018)So as to keep the converter in small size, high switching frequencies are normally used. As a result, in higher frequencies, switching losses seriously affect the efficiency. Current and voltage stresses on power switch ... -
Peak-to-average-power-ratio (PAPR) reduction methods with wavelet transform in MIMO-OFDM
(Taylor & Francis Ltd, 2018)This study is based on the comparison of the results with an analysis method recommended for the Peak-to-Average-Power-Ratio (PAPR) reduction methods. This is one of the most significant problems in the Multiple Input-Multiple ... -
Saturated flow boiling characteristics in single rectangular minichannels: effect of aspect ratio
(Taylor & Francis Inc, 2018)In this study, saturated flow boiling characteristics of deionized water in single rectangular minichannels are investigated experimentally. A special attention is paid to the effect of aspect ratio (channel width to depth, ... -
A performance comparison study of uncoated and TiAlN coated carbide end mill on machining of the Al-35Zn alloy
(Iop Publishing Ltd, 2018)In this study, Al-35Zn alloy was produced by permanent mold casting. To investigate the cutting performance of uncoated and TiAlN coated carbide end mills on this alloy, a series of tests were carried out in the CNC vertical ... -
Classification of new titles by two stage latent dirichlet allocation
(Ieee, 2018)With the rapid development of the Internet, thousands of different news reports from different channels are presented to us. So much news, particularly in the media sector, is an important question to be categorized and ... -
Climate control of an smart greenhouse based on android
(Ieee, 2018)Smart systems are systems used by new technologies that facilitate human life. Smart greenhouses have an important place in smart agriculture application. in this study, the amount of energy and water consumed for controlling ... -
Classification of brain responses to the various spice odors
(Ieee, 2018)Since one of the main goal of the human brain is to take and evaluate stimuli that comes from sensory organs, it is possible to measure their functionality. in this study we classified the electroencephalography signals ... -
Decoding of binary mental arithmetic based near infrared spectroscopy signals
(Ieee, 2018)There has been an increase interest for functional near-infrared spectroscopy (MRS) in recent years since it is a non-invasive technique as well as few restrictions to the subjects and not affected by electrical noise. in ... -
Latest Cretaceous "A(2)-type" granites in the Sakarya Zone, NE Turkey: Partial melting of mafic lower crust in response to roll-back of Neo-Tethyan oceanic lithosphere
(Elsevier Science Bv, 2018)An integrated study of comprehensive geochronological, geochemical, and Sr-Nd-Hf isotopic data was undertaken for the A-type Topcam pluton that intruded within the Sakarya Zone (NE Turkey) with the aims of elucidating its ... -
Comparing the pozzolanic activity properties of obsidian to those of fly ash and blast furnace slag
(Elsevier Sci Ltd, 2018)The use of pozzolan in cement provides economic advantages and improves the physico-mechanical properties of cement. Fly ash and blast furnace slag are widely used in cement as pozzolanic materials. in this study, obsidian ... -
Bearing capacity and slope stability assessment of rock masses at the Subasi viaduct site, NE, Turkey
(Springer Heidelberg, 2018)This study investigates the bearing capacity of rock masses and stability of slopes at the Subasi viaduct site which is a part of the improvement project of the Artvin-Hopa government highway between KM 6 + 500 and 13 + ... -
Changes in the abundance of cell wall apiogalacturonan and xylogalacturonan and conservation of rhamnogalacturonan II structure during the diversification of the Lemnoideae
(Springer, 2018)Main conclusion the diversification of the Lemnoideae was accompanied by a reduction in the abundance of cell wall apiogalacturonan and an increase in xylogalacturonan whereas rhamnogalacturonan II structure and cross-linking ... -
A passive acoustic based system to locate leak hole in underwater natural gas pipelines
(Academic Press Inc Elsevier Science, 2018)Underwater natural gas pipelines can be punctured for a variety of reasons, but the most notable are corrosion and aging. This study proposes a novel passive acoustic based system, to detect acoustic signals, locate the ... -
Effects of different cutting methods for electrical steel sheets on performance of induction motors
(Sage Publications Ltd, 2018)In this study, by cutting electrical steel stator laminations, one of the most important components of electrical machines by different cutting methods, the effects of these cutting methods on motor efficiency are investigated. ... -
Multi-band plasmonic platform utilizing UT-shaped graphene antenna arrays
(Springer, 2018)In this work, we introduce a plasmonic platform based on UT-shaped graphene antenna arrays. the proposed multi-resonant platform shows three different resonances, which can be independently tuned. the physical origin of ... -
Effectiveness of soil-structure interaction and dynamic characteristics on cable-stayed bridges subjected to multiple support excitation
(Korean Soc Steel Construction-Kssc, 2018)The purpose of the study is to determine the effects of multiple support excitations (MSE) and soil-structure interaction (SSI) on the dynamic characteristics of cable-stayed bridges founded on pile foundation groups. in ... -
A preface to the special issue section on "The Second International Hydrogen Technologies Congress (IHTEC 2017), 15-18 March 2017, Adana, Turkey"
(Pergamon-Elsevier Science Ltd, 2018)Hydrogen energy studies are considered to be vital for the future energy scenarios of Turkey. In this regard, in order to investigate and develop the existing potential of hydrogen energy studies in Turkey and other ... -
Exergetic performance comparison of air and hydrogen gas flowing through the annular curved duct
(Pergamon-Elsevier Science Ltd, 2018)The main objective of this study is to parametrically compare the exergetic performance of air and hydrogen gas flow through the curved annular duct. For this purpose, it is assumed that, i) air and hydrogen are considered ... -
Magnetic features of boron doping on Hf2Co11 thin films
(Springer, 2018)The effect of boron (B) doping on the structural and magnetic properties is studied systematically in the Hf2Co11 thin films. the modified crystal microstructure and annealing process enhanced the coercive field up to 1754 ... -
Widely unable dual-wavelength operation of Tm:YLF, Tm:LuAG, and Tm:YAG lasers using off-surface optic axis birefringent filters
(Optical Soc Amer, 2018)In this work, we have demonstrated dual-wavelength continuous-wave laser operation in diode-end-pumped Tm:YLF, Tm:LuAG, and Tm:YAG lasers. A 3-mm-thick quartz birefringent filter with an optical axis 45 degrees to the ...