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Recent Submissions

Experimental modal analysis of nonlinear systems by using response-controlled stepped-sine testing Karaağaçlı, Taylan; Özgüven, Hasan Nevzat (Elsevier BV, 2021-1) Although the identification and analysis of structures with a localized nonlinearity, either weak or strong, is within reach, identification of multiple nonlinearities coexisting at dif- ferent locations is still a challen...
Integrating National Research Agendas on Solar Heat for Industrial Processes (INSHIP) Baker, Derek Keıth(2020-12-31) Despite process heat is recognized as the application with highest potential among solar heating and cooling applications, Solar Heat for Industrial Processes (SHIP) still presents a modest share of about 0.3% of total ins...
Implementation of generalized Harvey-Shack theory in light scattering from rough surfaces Gunoven, M.; Nasser, H.; Ünal, Mustafa; Aytekin, O.; Turan, Raşit; Bek, Alpan (2020-12-01) We present a discrete implementation of generalized Harvey-Shack scalar scattering theory to calculate angular intensity distributions from height profiles of select randomly textured surfaces proposed for use in solar cel...
MEMS jiroskopun g-duyarlılığının bastırılmasına yönelik yöntem Gavcar, Hasan Doğan; Azgın, Kıvanç; Akın, Tayfun (Türk Patent Enstitüsü, 2020-11-23) Buluş, kapalı döngü geri besleme devresi (2) yardımı ile jiroskopun hareketli algılama yapısını harici ivmelerden bağımsız olarak sabit tutarak MEMS jiroskopunun (1) g-duyarlılığının bastırılması için bir yöntem sağlamakla...
On the application of hole-selective MoOx as full-area rear contact for industrial scale p-type c-Si solar cells Nasser, Hisham; Es, Fırat; Zolfaghari Borra, Mona; Semiz, Emel; Kokbudak, Gamze; Orhan, Efe; Turan, Raşit (Wiley, 2020-11-01) We present the feasibility of integrating substoichiometric molybdenum oxide (MoOx) as hole-selective rear contact into the production sequence of industrial scale p-type crystalline silicon (c-Si) solar cells. Thin films ...
Granitik Buzul Çakıllarında Zirkon Tipolojisi Çalışması: Toridler’den Örnek Bir Çalışma (Türkiye) Köksal, Serhat (2020-11-01) Gondwana’nın kuzey kenarına ait Geç Ordovisiyen buzul kayaçlarına, Torid’lerde ve Güneydoğu Anadolu Otokton Kuşağı’nda rastlanmaktadır. Bu çalışmada; Doğu Toridler’de Feke-Saimbeyli-Ceralan (Adana) (DPK-30), Feke-Gökmenler...
Optical and Nanomechanical Properties of Ga(2)Se(3)Single Crystals and Thin Films IŞIK, MEHMET; Emir, Cansu; Güllü, Hasan Hüseyin; Hasanlı, Nızamı (Springer Science and Business Media LLC, 2020-10-01) The optical and nanomechanical properties of Ga(2)Se(3)single crystals and thin films were investigated using reflection, transmission, and nanoindentation measurements. The reflection spectrum recorded in the 525- to 1100...
Angular Dependence of Solar Cell Parameters in Crystalline Silicon Solar Cells Textured with Periodic Array of Microholes Altinoluk, Serra; Kumar, Naveen; Çiftpınar, Emine Hande; Demircioglu, O.; Turan, Raşit; Vasileska, Dragica (2020-09-01) Surface texturing is an indispensable way of increasing absorption in solar cells. In order to properly characterize the effect of texturing, the angular dependence of the incidence light should be addressed. This is parti...
Quantifying the streamflow response to groundwater abstractions for irrigation or drinking water at catchment scale using SWAT and SWAT-MODFLOW Liu, Wei; Park, Seonggyu; Bailey, Ryan T.; Molina-Navarro, Eugenio; Andersen, Hans Estrup; Thodsen, Hans; Nielsen, Anders; Jeppesen, Erik; Jensen, Jacob Skodt; Jensen, Jacob Birk; Trolle, Dennis (Springer Science and Business Media LLC, 2020-09-01) Background Groundwater abstraction can cause a decline in the water table, and thereby affects surface streamflow connected to the aquifer, which may impair the sustainability of both the water resource itself and the ecos...
Magnetic Susceptibility-Based Protein Detection Using Magnetic Levitation Yaman, Sena; TEKİN, HÜSEYİN CUMHUR (American Chemical Society (ACS), 2020-09-01) Magnetic levitation, which is a magnetic phenomenon of levitating particles suspended in a paramagnetic liquid under a nonuniform magnetic field, is a powerful tool for determining densities and magnetic properties of micr...
First-principles studies of Tin+1SiN(n) (n=1, 2, 3) MAX phase Surucu, Gokhan; Güllü, Hasan Hüseyin; CANDAN, ABDULLAH; YILDIZ, BUĞRA; Erkisi, Aytac (Informa UK Limited, 2020-09-01) In this study, the structural, electronic, mechanical, lattice dynamical and thermodynamic characteristics of ( 1, 2 and 3) phase compounds were investigated using the first principle calculations. These ternary nitride co...
ENabling Onshore CO2 Storage in Europe (ENOS) Sınayuç, Çağlar(2020-8-31) To meet the ambitious EC target of an 80% reduction in greenhouse gas emissions by 2050, CO2 Capture and Storage (CCS) needs to move rapidly towards full scale implementation with geological storage solutions both on and o...
Real-time gas monitoring at the Tekke Hamam geothermal field (Western Anatolia, Turkey): an assessment in relation to local seismicity Süer, Selin; Wiersberg, Thomas; Güleç, Nilgün Türkan; Erzinger, Joerg; Parlaktuna, Mahmut (Springer Science and Business Media LLC, 2020-08-01) This study presents the results of a real-time gas monitoring experiment conducted, via the use of a quadrupole mass spectrometer, in a mofette field within the Tekke Hamam geothermal site in western Anatolia (Turkey), a t...
Solvent selection for fabrication of low temperature ZnO electron transport layer in perovskite solar cells Ahmadi, S. Hamideh; Ghaffarkani, Mashhood; Ameri, Mohsen; Safari, Nasser; Mohajerani, Ezeddin (Elsevier BV, 2020-08-01) Zinc Oxide (ZnO) with an easy synthesis method, low processing temperature, and high charge carrier mobility has been considered as a proper electron transport layer (ETL) for perovskite solar cells. Herein, we investigate...
Material and Si-based diode analyses of sputtered ZnTe thin films Güllü, Hasan Hüseyin; Surucu, O. Bayrakli; Isik, M.; Terlemezoglu, M.; Parlak, M. (Springer Science and Business Media LLC, 2020-07-01) Structural, optical, and electrical properties ZnTe thin films grown by magnetron sputtering technique were studied by X-ray diffraction, atomic force microscopy, Raman spectroscopy, and electrical conductivity measurement...
Exposure to a microplastic mixture is altering the life traits and is causing deformities in the non-biting midge Chironomus riparius Meigen (1804) Stankovic, Jelena; Milosevic, Djuradj; Savic-Zdrakovic, Dimitrija; Yalçın, Gülce; Yildiz, Dilvin; Beklioğlu, Meryem; Jovanovic, Boris (Elsevier BV, 2020-07-01) The effect of microplastics (MP) exposure on the chironomid species Chironomus riparius Meigen, 1804 was investigated using the OECD sediment and water toxicity test. Chironomid larvae were exposed to an environmentally re...
Investigation of structural, electronic, magnetic and lattice dynamical properties for XCoBi (X: Ti, Zr, Hf) Half-Heusler compounds Surucu, Gokhan; IŞIK, MEHMET; CANDAN, ABDULLAH; Wang, Xiaotian; Güllü, Hasan Hüseyin (Elsevier BV, 2020-06-15) Structural, electronic, magnetic, mechanical and lattice dynamical properties of XCoBi (X: Ti, Zr, Hf) Half-Heusler compounds have been investigated according to density functional theory and generalized gradient approxima...
Hierarchical classification of Sentinel 2-a images for land use and land cover mapping and its use for the CORINE system Demirkan, Doga C.; Koz, Alper; Duzguna, H. Sebnem (SPIE-Intl Soc Optical Eng, 2020-06-01) The aim of this study is to investigate the potential of the Sentinel-2 satellite for land use and land cover (LULC) mapping. The commonly known supervised classification algorithms, support vector machines (SVMs), random ...
Ultra-High Precision Radiation Dosimetry via Laser Bleaching the Color Centers in Fast Recovery Optical Fiber Sensors Ghahrizjani, Reza Taheri; Ameri, Mohsen; Jahanbakhsh, Hossein; Sadeghi, Hossein; Mohajerani, Ezeddin (Institute of Electrical and Electronics Engineers (IEEE), 2020-06-01) High energy electromagnetic radiation or heavy charged particles are extensively used for medical treatment of certain cancers. Precise prediction or measurements of energy deposition of any types of radiation on tissue is...
Water column nutrient concentrations are related to excretion by benthic invertebrates in Lake Taihu, China Peng, Kai; Qin, Boqiang; Cai, Yongjiu; Gong, Zhijun; Jeppesen, Erik (Elsevier BV, 2020-06-01) Internal release of nutrients is an important contributor to the nutrient dynamics in shallow eutrophic lakes. Zoobenthic organisms may contribute to this release by excreting nutrients to the overlaying water. Based on ex...