• Historical trends associated with annual temperature and precipitation in Aegean Turkey, where are we heading? 

  Mersin, Denizhan; Tayfur, Gökmen; Vaheddoost, Babak; Safari, Mir Jafar Sadegh (2022-10-15)

  The trend analysis of annual temperature (daily average) and total precipitation has been conducted for 14 stations located in the Aegean Region, Turkey. The Sen, Spearman's rho, and Mann-Kendall test methods are used in ...
• An estimation of the performance of a passive cooling system incorporating a ground heat exchanger using a multilayer artificial neural network 

  Tutumlu, Hakan; Duman, Erkan; Inalli, Mustafa (2022-06-28)

  Abstract Objective: This paper examines the cooling of an office building without a heat pump, using only ground heat exchangers (GHE) and implementing artificial neural network (ANN) to train it on experimental ...
• Drought assessment in the Aegean Region of Turkey 

  Mersin, Denizhan; Gülmez, Ayşe; Safari, Mir Jafar Sadegh; Vaheddoost, Babak; Tayfur, Gökmen (2022-07-12)

  Drought indices are commonly used to monitor the duration and severity of droughts. In this regard, the continuously changing climate regardless of its cause or effect pushes the limit of the water deficit through time and ...
• Energy performance analysis of buildings in terms of alternative reinforced concrete structural systems 

  Tutumlu, Hakan; Aydoğdu, Berkay; İnallı, Mustafa (2022-06-07)

  In this study, the thermal energy performances and environmental effects of two different reinforced concrete structures, Pure Shear Wall (PSW) Building and Shear Wall-Frame (SWF) Building, were investigated in the climatic ...
• Bağdere Tufası’nın jeolojik, jeokimyasal ve jeokronolojik özellikleri (Elazığ, D Türkiye) 

  Çolak Erol, Serap; Aksoy, Ercan; Özkul, Mehmet (2022)

  Çalışmaya konu olan tufa yüzleği, Türkiye’nin ikinci büyüklükteki neotektonik yapısı olan sol yanal doğrultu atımlı Doğu Anadolu Fay Sistemi’nin önemli zonlarından biri olan Elazığ Fay Zonu üstünde, Elazığ şehir merkezinin ...
• Keban magmatik kayaçları’nın petrografik ve jeokimyasal özellikleri (Keban- Elazığ) 

  Rizeli, Mustafa Eren; Sar, Abdullah; Ertürk, Mehmet Ali (2021-03-13)

  Bu çalışmada, Keban-Elazığ bölgesindeki Geç Kretase-Orta Eosen yaşlı Keban Magmatik kayaçlarının petrografik ve jeokimyasal özellikleri incelenmiştir. Çalışılan bölgede Keban Magmatik Kayaçları dışında Geç Devoniyen-Geç ...
• Genesis of late cretaceous intra-oceanic arc intrusions in the Pertek area of Tunceli province, eastern Turkey, and implications for the geodynamic evolution of the southern Neo-Tethys: Results of zircon U–Pb geochronology and geochemical and Sr–Nd isotopic analyses 

  Sar, Abdullah; Ertürk, Mehmet Ali; Rizeli, Mustafa Eren (2019-11-01)

  The plutonic units of the Elazığ magmatic complex crop out in the Pertek area of Tunceli Province (eastern Turkey) in the Southeast Anatolian Orogenic Belt (SAOB). Three stages of plutonic activity can be recognised on the ...
• Doğu Anadolu fay sistemi boyunca gelişen kuvaterner mafik alkali volkanizmasının petrojenezi ve tektonik konumu, Güneydoğu Anadolu Orojenik Kuşağı (Elazığ) 

  Beyarslan, Melahat; Ertürk, Mehmet Ali; Rizeli, Mustafa Eren; Sar, Abdullah (2022-01-31)

  Bu çalışma ile Elazığ Bölgesinde yüzeyleyen Kuvaterner volkanik kayaçlarının inceleme sonuçları verilmiştir. Sol yönlü doğrultu atımlı Doğu Anadolu Fay Zonu (EAFZ) Türkiye’nin en önemli faylarından birisidir. Elazığ ...
• Effect of vibration on heat transfer and pressure drop in a heat exchanger with turbulator 

  Mohammed, Azeez Majeed; Kapan, Sinan; Şen, Murat; Çelik, Nevin (2021-12-02)

  In the present study effects of forced mechanical vibration on a concentric pipe heat exchanger with turbulator inside it, is experimentally analyzed. Three different zigzag shaped turbulators are used in the concentric ...
• Nonlinear seismic behavior of a historical dam for different soil groups 

  Yetkin, Musa; Calayır, Yusuf; Sayın, Erkut; Karaton, Muhammet (2018)

  In this study, effect of soil flexibility on non-linear seismic response of historical Sultan Mahmut dam which is constructed as masonry arch dam type is investigated. Crest displacement and damage of the dam are evaluated. ...
• Determining dynamic characteristics of reinforced concrete minarets and updating of their finite element models using environmental vibration data 

  Yetkin, Musa; Erkek, Hakan; Calayır, Yusuf (2018)

  Structures are exposed to various dynamic effects such as earthquake, wind and traffic load. It need to be taken various measures for surviving the structures under dynamic loads. Taking the appropriate measures depends ...
• Investigating thermal performance of an ice rink cooling system with an underground thermal storage tank 

  Tutumlu, Hakan; Yumrutaş, Recep; Yıldırım, Murtaza (2018-03-01)

  This study deals with mathematical modeling and energy analysis of an ice rink cooling system with an underground thermal energy storage tank. The cooling system consists of an ice rink, chiller unit, and spherical thermal ...
• Mineral chemistry and petrology of mantle peridotites from the Guleman ophiolite (SE Anatolia, Turkey): Evidence of a forearc setting 

  Rizeli, Mustafa Eren; Beyarslan, Melahat; Wang, Kuo-lung; Bingöl, Ahmet Feyzi (2016-11)

  The mantle section of Guleman ophiolite, southeast (SE) Turkey consists mainly of harzburgites and dunite lenses and large chromitite pods. The average Cr ratio = [100 x Cr/(Cr + Al) atomic ratio) of Cr-spinels in harzburgites ...
• Effects of graphite on mechanical properties of stone mastic asphalt pavement 

  Kök, Baha Vural; Yılmaz, Mehmet; Erkuş, Yunus (2017)

  Hot mix asphalt needs to be developed to resist particular permanent deformations like rutting and thermal cracking due to increased traffic volumes and vehicle loads. Additives such as carbon black, graphite, carbon ...
• Efficient android electronic nose design for recognition and perception of fruit odors using Kernel Extreme Learning Machines 

  Uçar, Ayşegül; Özalp, Recep (2017-06-01)

  This study presents a novel android electronic nose construction using Kernel Extreme Learning Machines (KELMs). The construction consists of two parts. In the first part, an android electronic nose with fast and accurate ...
• Some ecological and faunistical notes on insect fauna in Şahaplı stream (Turkey: Elazığ: Baskil) 

  Özgen, İnanç; Topdemir, Aykut; Tanyıldızı, M. Şaban (2017-01-01)

  Şahaplı is located in the south of Baskil district, Şevkat creek merging with the River Geli which is stemming from the creeks of Bulutlu Mountain near Keluşağı, is the river flows into Karakaya dam lake (Anonymous, 2016). ...
• Unocculuded object grasping by using visual data 

  Arserim, Muhammet Ali; Demir, Yakup; Uçar, Ayşegül (2016-12-01)

  Automatic grasping objects can become important in the areas such as industrial processes, processes which are dangerous for human, or the operations which should be executed in the places, small for people work. In this ...
• The quantitative evaluation of alternaria toxins in apple and tomato juices 

  Topdemir, Aykut; Gür, Nazmi (2016-06-20)

  In this study we aimed to quantify the alternariol (AOH), alternariol monomethyl ether (AME) and tenuazonic acid (TEA) in 10 different brands of tomato and apple juices by HPLC (high pressure liquid chromatography). In ...
• Zircon U-Pb age and geochemical constraints on the origin and tectonic implication of Cadomian (Ediacaran-Early Cambrian) magmatism in SE Turkey 

  Beyarslan, Melahat; Lin, Yu Chin; Bingöl, Ahmet Feyzi; Chung, Sun-lin (2016-08-10)

  The Bitlis-Pütürge Massifs and Derik volcanics that crop out in the Southeast Anatolian Belt are parts of the Cadomian domain in Anatolia where relicts of the oldest continental crust of Turkey are exposed. The Bitlis-Pütürge ...
• Distribution of chromium, nickel, and cobalt in different parts of plant species and soil in mining area of Keban, Turkey 

  Şaşmaz, Ahmet; Yaman, Mehmet (2006-03)

  The distribution of chromium, nickel, and cobalt in the plant species and soil of the Zn-Pb-Ag sulfide deposits of the Keban area in Turkey have been studied to determine both biogeochemical indicators and biomonitoring ...
• Origin and nature of the mineralizing fluids of thrust zone fluorites in Çelikhan (Adiyaman, Eastern Turkey): A geochemical approach 

  Şaşmaz, Ahmet; Önal, Ayten; Sağıroğlu, Ahmet; Önal, Mehmet; Akgül, Bünyamin (2005-02)

  The Çelikhan fluorite mineralization is concentrated in the thrust zone between the Pinarbasi Formation, which forms the hanging wall, and the Kalecik Limestone foot wall. Fluorite occurs as fracture fills in the thrust ...
• Road geometry based risk estimation model for horizontal curves 

  Karaduman, Özgür; Eren, Haluk; Kürüm, Hasan; Çelenk, Mehmet (2016-02-19)

  Rural roads present potential risks for drivers. One of them is horizontal curve, which poses higher risk than freeway. This is the major theme for the presented work here aiming to develop a model that predicts risk of ...
• Reduction of EMI with chaotic space vector modulation in direct torque control 

  Asker, Mehmet Emin; Özer, Ahmet Bedri; Kürüm, Hasan (2016-03-03)

  Due to asymmetric three-phase system and influence of inverter nonlinearity, large torque and stator flux harmonics would exist in the space vector modulation based direct torque controlled (DTC-SVM) three-phase permanent ...
• Modelling and simulation with neural and fuzzy-neural networks of switched circuits 

  Demir, Yakup; Uçar, Ayşegül (2003-01-01)

  Recently, the modelling and simulation of switched systems containing new nonlinear components in electronics and power electronics industry have gained importance. In this paper, both feed‐forward artificial neural networks ...
• A penalty function method for designing efficient robust classifiers with input space optimal separating surfaces 

  Uçar, Ayşegül; Demir, Yakup; Güzeliş, Cüneyt (2014-01-01)

  This paper considers robust classification as a constrained optimization problem. Where the constraints are nonlinear, inequalities defining separating surfaces, whose half spaces include or exclude the data depending on ...
• A new facial expression recognition based on curvelet transform and online sequential extreme learning machine initialized with spherical clustering 

  Uçar, Ayşegül; Demir, Yakup; Güzeliş, Cüneyt (2016-01-01)

  In this paper, a novel algorithm is proposed for facial expression recognition by integrating curvelet transform and online sequential extreme learning machine (OSELM) with radial basis function (RBF) hidden node having ...
• Gesture imitation and recognition using Kinect sensor and extreme learning machines 

  Yavşan, Emrehan; Uçar, Ayşegül (2016-12-01)

  This study presents a framework that recognizes and imitates human upper-body motions in real time. The framework consists of two parts. In the first part, a transformation algorithm is applied to 3D human motion data ...
• Ağır metal iyonlarının (Cu++, Pb++, Hg++, Cd++) Clivia sp. bitkisi polenlerinin çimlenmesi ve tüp büyümesi üzerine etkileri 

  Gür, Nazmi; Topdemir, Aykut; Munzuroğlu, Ömer; Çobanoğlu, Dursun (2004)

  Clivia sp. bitkisinin polen çimlenmesi ve tüp büyümesi üzerine klor tuzu halinde uygulanan kurşun, bakır, civa ve kadmiyum ağır metallerinin etkileri araştırıldı. Her bir ağır metalin 30, 60, 90, 120 ve 240 U.M' lık ...
• Performance of a swimming pool heating system by utilizing waste energy rejected from an ice rink with an energy storage tank 

  Kuyumcu, Muhammed Enes; Tutumlu, Hakan; Yumrutaş, Recep (2016-08-01)

  This study deals with determining the long period performance of a swimming pool heating system by utilizing waste heat energy that is rejected from a chiller unit of ice rink and subsequently stored in an underground ...
• Sivas Divriği çelik cürufunun bitümlü sıcak karışımlarda kullanılabilirliliği 

  Kök, Baha Vural; Yılmaz, Mehmet; Yılmaz, Mesude (2009)

  Bu çalışmada Sivas Divriği Demir-Çelik Fabrikası’ndan temin edilen cürufun, bitümlü sıcak karışımlarda kullanılabilirliği araştırılmıştır. Bu amaçla demir cürufu, doğal granülometrisine bağlı olarak 200 numaralı elek ...
• The potential of Lemna gibba L. and Lemna minor L. to remove Cu, Pb, Zn, and As in gallery water in a mining area in Keban, Turkey 

  Şaşmaz, Merve; Topal, Emine Işıl Arslan; Öbek, Erdal; Şaşmaz, Ahmet (2015-11)

  This study was designed to investigate removal efficiencies of Cu, Pb, Zn, and As in gallery water in a mining area in Keban, Turkey by Lemna gibba L. and Lemna minor L. These plants were placed in the gallery water of ...
• Mercury uptake and phytotoxicity in terrestrial plants grown naturally in the Gumuskoy (Kutahya) mining area, Turkey 

  Şaşmaz, Merve; Akgül, Bünyamin; Yıldırım, Derya; Şaşmaz, Ahmet (2016-01)

  This study investigated mercury (Hg) uptake and transport from the soil to different plant parts by documenting the distribution and accumulation of Hg in the roots and shoots of 12 terrestrial plant species, all of which ...
• Translocation and accumulation of boron in roots and shoots of plants grown in soils of low B concentration in Turkey’s Keban Pb-Zn mining area 

  Şaşmaz, Ahmet (2008-08)

  Boron (B) concentrations were investigated in both shoots and roots of Euphorbia macroclada, Verbascum cheiranthifolium, and Astragalus gummifer grown in soil of the Keban, Turkey, Lead–zinc–copper–fluoride mining area, ...
• Çimento stabilizasyonlu zeminin esnek üstyapı maliyetine etkisi 

  Kök, Baha Vural; Yılmaz, Mehmet; Geçkil, Alaaddin (2012)

  Yol otoriteleri, dayanıklı minimum bakım gerektiren, trafik güvenliği yüksek, uzun ömürlü ve ekonomik yolları hedeflemektedirler. Taşıma gücü zayıf zeminlerde ekonomik bir üstyapı inşası güç olmaktadır. Bu çalışmada düşük ...
• Distribution and accumulation of selenium in wild plants growing naturally in the Gumuskoy (Kutahya) mining area, Turkey 

  Şaşmaz, Merve; Akgül, Bünyamin; Şaşmaz, Ahmet (2015-05)

  This study investigated selenium uptake and transport from the soil to 12 plant species in the mining area of Gumuskoy (Kutahya), Turkey. Plant samples and their associated soils were collected and analyzed for Se content ...
• Ağır metal iyonlarının (Cu++, Pb++, Hg++, Cd++) Clivia sp. bitkisi polenlerinin çimlenmesi ve tüp büyümesi üzerine etkileri 

  Gür, Nazmi; Topdemir, Aykut; Munzuroğlu, Ömer; Çobanoğlu, Dursun (2004)

  Clivia sp. bitkisinin polen çimlenmesi ve tüp büyümesi üzerine klor tuzu halinde uygulanan kurşun, bakır, civa ve kadmiyum ağır metallerinin etkileri araştırıldı. Her bir ağır metalin 30, 60, 90, 120 ve 240 u.M' lık ...
• Effects of simulated acid rain on in vitro pollen performance of pyrus communis L. and Malus Sylvestris Miller 

  Topdemir, Aykut; Gür, Nazmi (2012)

  Successful fruit set depends on several reproductive processes including pollen germination and lube growth processes. Pollens of/V/'W connnniiis L. and Mains sy/veslris Millet flowers have been exposed lo different ...
• Elazığ ili çimento fabrikasının çevresinde yetişen Prunus armeniaca L. (kayısı) bitkisi polenlerinin çimlenme ve tüp büyümesinin araştırılması 

  Gür, Nazmi; Topdemir, Aykut; Topdemir, Gülşah (2012)

  Elazığ ili şehir merkezinde bulunan Çimento Fabrikasının güneyinde kalan bölgeden 500 er metre aralıklarla 2500 üncü metreye kadar elan uzaklıklardan alınan kayısı (Prunus armeniaca L.) bitkisi polenlerinin in vitro polen ...
• Cerasus avium L.(kiraz) ve Cerasus vulgaris Miller (vişne) polenlerinin çimlenmesi ve tüp büyümesi üzerine asitliğin etkileri 

  Topdemir, Aykut; Gür, Nazmi; Topdemir, Gülşah (2012)

  The aim of this study is to investigate effects of acidity on in vitro polen germination and tube length of Cerasus avium L. and Cerasus vulgaris Miller plants.Pollens of Cerasus avium L. and Cerasus vulgaris Miller flowers ...
• Effects of heavy metals (Cd, Cu, Pb, Hg) on pollen germination and tube growth of quince (Cydonia oblonga M.) and plum (Prunus domestica L.) 

  Gür, Nazmi; Topdemir, Aykut (2005)

  Pollen germination and tube elongation rate have fre-quently been used as indicators for air pollution with heavy metals. The tubes of quince and plum pollen were germi¬nated in a culture medium containing the heavy metals ...
• Effects of some heavy metals on in vitro pollen germination and tube growth of apricot (Armenica vulgaris Lam.) and cherry (Cerasus avium L.) 

  Gür, Nazmi; Topdemir, Aykut (2008)

  The aim of the study was to determine the influence of heavy metals (Cd, Cu, Hg and Pb) on the pollen germination and tube growth of Apricot and Cherry. This study demonstrated heavy metals led to a significant decrease ...
• Hardness removal from waters by using citric acid modified pine cone 

  Altundoğan, Hamdi Soner; Topdemir, Aykut; Çakmak, Meltem; Bahar, Nurdan (2016)

  In this study, an effective cation exchanger was developed from pine cone by citric acid modification and its hardness removal properties from waters were investigated. For this purpose, grinded pine cone samples were ...
• Dodine ve Chorus pestisistlerinin Cydonia oblonga Miller (ayva) ve Cerasus vulgaris Miller (vişne) bitkilerinin polen performansı üzerine etkileri 

  Topdemir, Aykut; Gür, Nazmi; Demir, Zümre (2015)

  The use of pesticides are inevitable today. However, when using peticides it should be evaluated together both protection of products against disease, pest and weed, and negative effects of product’s on people and environment. ...
• Çeşitli ağır metallerin (Cu++, Pb++, Hg++, Cd++) Malus sylvestris Miller (elma) ve Cerasus vulgaris Miller (vişne) bitkisi polenlerinin çimlenmesi ve tüp büyümesi üzerine etkileri 

  Topdemir, Aykut; Gür, Nazmi; Koçak, Kübra (2015)

  Generally all the metals which are density of 5g/cm3 or more elements are called heavy metals. Motor vehicles, mineral deposits and businesses, volcanic activity, fertilizers used in agriculture and medicine, and urban ...
• Asitligin Prunus armeniaca L. (kayısı) ve Persica vulgaris Miller (şeftali) bitkilerinin polen tüpü gelişimi üzerine etkisi 

  Topdemir, Aykut; Gür, Nazmi; Düzel, Ahmet (2015)

  Acid rains affect the soil's chemical and biological properties. Sulphure and nitrogen compounds which are accumulated in atmosphere, by passing through the soil with rains, cause to decrase pH of soil. In this study we ...
• Determination of elements in thermal springs for monitoring pre-earthquake activites by ICP-MS 

  Yaman, Mehmet; Şaşmaz, Ahmet; Kaya, Gökçe; İnce, Muharrem; Karaaslan, Nagihan; Özcan, Cemile; Akkuş, Şükran (2011-03)

  This study presents the results of hydrogeochemical studies carried out at the Kos thermal springs in Bingol, located in East Anatolia, Turkey. More than 250 thermal water samples were collected on a regular basis from ...
• Epoksi reçine ile modifiye edilen bitümlerin fiziksel özellikleri üzerinde yaşlanmanın etkisi 

  Ahmedzade, Perviz; Yılmaz, Mehmet; Yılmaz, Mesude (2007)

  Bu çalışmada epoksi reçine ile modifiye edilen bitümler üzerinde kısa süreli yaşlanmanın etkisi araştırılmıştır. Saf bitüm üzerinde epoksi reçinenin etkilerini belirlemek amacıyla B 70/100 sınıfı bitüm ve dört farklı oranda ...
• Kısa süreli yaşlanmanın polyester reçine katkılı bitümlü bağlayıcılar üzerindeki etkisi 

  Ahmedzade, Perviz; Yılmaz, Mehmet; Yılmaz, Mesude (2007)

  Bu çalışmada, kısa süreli yaşlanmanın polyester reçine katkılı bağlayıcılar üzerindeki etkisi incelenmiştir. Saf bitüm ve dört farklı oranda (%0,75-%1,0-%2,0 ve %3,0) polyester reçine (PR) kullanılarak hazırlanan modifiye ...
• Bitümlü bağlayıcıların yaşlandırılmasında kullanılan deney yöntemlerinin karşılaştırılması 

  Ahmedzade, Perviz; Yılmaz, Mesude; Yılmaz, Mehmet (2007)

  Bu çalışma, bitüm yaşlandırma deney yöntemleri üzerine geniş bir literatür araştırmasını içermektedir. Uzun süreli yaşlanmaya başlıca arazideki yapısal sertleşme ve oksidasyon neden olurken kısa süreli yaşlanma, öncelikli ...
• Superpave sistemine göre uygulama bölgesine uygun bağlayıcı seçimi: Bingöl örneği 

  Ahmedzade, Perviz; Yılmaz, Mehmet; Geçkil, Tacettin (2007)

  Bu çalışmada Bingöl Meteoroloji İl Müdürlüğü’nden elde edilen hava sıcaklığı değerleri kullanılarak Superpave sistemine göre bölgeye uygun bağlayıcı performans seviyesi belirlenmiştir. TÜPRAŞ rafinerisinden elde edilen iki ...

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