Başlık için Mühendislik Fakültesi listeleme
Toplam kayıt 847, listelenen: 487-506
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Investigation of thermoelectric cooler system effect on induction motor performance
(Institute of Electrical and Electronics Engineers Inc., 2021)Induction motors are generally cooled by the fan connected to the motor shaft, as the cooling of electrical machines is important. In this study, an alternative method is proposed for cooling of induction motors. Thermoelectric ... -
Investigation on the fatigue behavior of 7075 aluminum alloy at different aging states
(Elsevier, 2023)To study the effect of the aging state on the low-cycle fatigue (LCF) performance of 7075 Al alloy, LCF experiments with different strain amplitudes (& UDelta;& epsilon;/2 = 0.5%- & UDelta;& epsilon;/2 = 0.9%) were conducted ... -
Investigation on the flexural strength, failure pattern and microstructural characteristics of combined fibers reinforced cemented tailings backfill
(Elsevier, 2021)The brittleness of the cemented tailings backfill (CTB) can easily cause collapse, which seriously threatens the safety of underground mining workers and equipment. Studies have shown that fibers can improve the ductility ... -
Investıgatıon of boron and yttrıum dopıng effect on structural, electrıcal and optıcal propertıes of sol-gel spın coated sno2 thın fılms
(Natl Inst R&D Materials Physics, 2013)In this study, B and Y doped SnO2 thin films were prepared by sol-gel spin coating method. the structural, electrical and optical properties of doped SnO2 were investigated as a function of B and Y doping content. From XRD ... -
İnsan ve koyun femur kemiğinin mekanik özelliklerinin sonlu elemanlar yöntemiyle karşılaştırılması
(2021)İnsan ve hayvan sağlığı araştırmalarında sonlu elemanlar yöntemi (SEY) kullanılarak gerçekleştirilen analiz çalışmaları, bilgisayar teknolojisinin de gelişmesiyle birlikte önem kazanmıştır. SEY analiz çalışmaları fare, ... -
A joint experiment and discussion for strength characteristics of cemented paste backfill considering curing conditions
(MDPI, 2022)As lots of underground mines have been exploited in the past decades, many stope instability and surface subsidence problems are appeared in the underground mines, while the cemented paste backfill (CPB) technology has ... -
A Jurassic volcanic passive margin in Iran and Turkey
(Wiley, 2022)Broadly similar Early to Middle Jurassic stratigraphic sequences including bimodal igneous rocks of the Sanandaj–Sirjan Zone of Iran and the Sakarya Zone of Turkey suggest that these formed in a common tectonic setting in ... -
Kararlı durumda seri kapasitörlerin iletim şebekesine etkilerinin incelenmesi
(2019)Artan nüfus ve gelişen sanayi ile birlikte elektrik enerjisi ihtiyacı günden güne artmaktadır. Bu talebin karşılanması için yeni üretim tesisleri birincil enerji kaynaklarına yakın yerlerde kurulmakta ve iletim şebekesi ... -
Kokil kalıba döküm yöntemi ile üretilmiş Al-12Si-(0,02-1)Sr alaşımlarının CVD-TiCN/Al2O3/TiN kaplamalı kesici uç ile tornada işlenmesinde kesme kuvveti ve yüzey pürüzlülüğü üzerine deneysel çalışma
(Gazi Üniversitesi , Fen Bilimleri Enstitüsü, 2022)In this study, three Al-12Si-Sr alloys containing different ratios (0.02; 0.1 and 1%) strontium (Sr) were manufactured by the permanent mold casting method. The microstructures of the manufactured alloys were determined ... -
A large goaf group treatment by means of Mine Backfill Technology
(Hindawi, 2021)There are few studies on the management methods of large-scale goaf groups per the specific surrounding rock mass conditions of each goaf. This paper evaluates comprehensively the stability of the multistage large-scale ... -
Late Jurassic Magmatism and Stratigraphy in the Eastern Sakarya Zone, Turkey: Evidence for the Slab Breakoff of Paleotethyan Oceanic Lithosphere
(Univ Chicago Press, 2017)Middle-Late Jurassic Cimmerian events in Turkey have been actively discussed in the past three decades, but proposed tectonic models associated with magmatism, metamorphism, and stratigraphic features remain controversial. ... -
Late Jurassic Paleotethyan oceanic slab break-off revealed by Sr-Nd-Hf isotopes of Na-rich adakitic granites from northwestern Turkey
(Elsevier, 2021)The Mesozoic geodynamic evolution of the Paleotethys Ocean is critical but a poorly known piece of the geological history of the Sakarya Zone, north Turkey. Here, we describe new integrated research of zircon U-Pb ... -
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 ... -
LBM curved boundary treatments for pulsatile flow on convective heat transfer and friction factor in corrugated channels
(Sage Publications, 2023)The present research investigates heat transfer and the flow characteristics of periodically corrugated wavy channels numerically under pulsatile flow conditions. The numerical method used here is Lattice Boltzmann Method ... -
Learner characteristics and competencies
(Springer, 2023)The advances in technology and the demand for open, distance, and digital education redefined the characteristics and competencies of learners in these learning environments. Although technology ownership and access to an ... -
Lightweight offline authentication scheme for secure remote working environment
(IEEE, 2021)During pandemic situations, remote work security and reliability become more important for sustainability. The main problem in remote working is providing a reliable internet connection between remote working employees and ... -
Localization of leakages in underwater natural gas pipelines for multipath propagation
(Ieee, 2018)Underwater natural gas pipelines (UNGPs) are frequently used to transport natural gas, which is an important energy resource. UNGPs can get punctured because of several reasons such as especially corrosion and their ... -
Long-term ageing characteristics of cemented paste backfill: Usability of sand as a partial substitute of hazardous tailings
(Elsevier, 2023)Considering environmental problems caused by sulfidic tailings as a result of long-term ageing as well as inadequacies in their gradations in ensuring the strength needed for cemented paste backfill (CPB), there is a need ... -
Low-cost multi-mode diode pumped Tm:YLF laser: Multi-color & Q-switching operations
(Elsevier, 2019)In this paper, we report a low-cost multi-mode AlGaAs laser diode pumped broadly-tunable solid-state Tm:YLF laser at room-temperature operating in two different regimes: multi-color and Q-switching. A low-cost multimode ... -
Low-cost multimode diode-pumped Tm:YAG and Tm:LuAG lasers
(2019)We report a continuous-wave operation of Tm:YAG and Tm:LuAG lasers pumped with a low-cost, multimode AlGaAs laser diode. First, the lifetime and the absorbance behavior of 5 mm, 6% Tm3+ -doped YAG and LuAG crystals were ...
