Sürdürülebilir Kalkınma Amaçları

Yazarlar

  • MakaleYalnız künye2018
    An Investigate on Importance of the Major Components of Herb Essential Oils on Challenging with Fish Diseases

    Küçükgül, Azime

    The presence of different phytochemical components of essential oil such as tannins, alkaloids, terpenoids and phenolic compounds has antibacterial, antifungal, and anti-inflammatory effects. The aim of this study is to investigate importance of the major components of three herb essential oils (Thymus vulgaris L., Centauriumerythraea Rafn. And Foeniculumvulgare Mill) on challenging with fish diseases. The components of essential oils provided from a commercial firm were made GC/MS analyzes. The major component of T. vulgarewas carvacrol called as phenol, 2-methyl-5-(1-methylethyl) with 40%.The others were Linalool L (15.11%) and benzene, methyl(1-methylethyl)- (12.12%).The richest oil in C. erythraea was bicyclo[3.1.1]hept-2-ene, 2,6,6-trimethyl- (34.90%) called as alpha-pinene, followed by heptacosane (19.15%) and dotriacontane (17.72%), respectively.The evaluation of the essential oil of F. vulgarispresented benzene, 1-methoxy-4-(1-propenyl)- with 67.99%, followed by dl-Limonene (16.03%) and benzene, 1-methoxy-4-(2-propenyl)- (6.97%). The therapeutic effects of thyme are due to its high content of phenolic compounds, particularly carvacrol. The most important compounds of F. vulgare essential oil is anethole, fenchone, limonene that has antibacterial, antioxidant, antifungal and anticancer effects. The previous studies show that alpha pinene significantly inhibits many pathogenic Gram-negative bacteria. In aquaculture studies, in vitro and in vivo effects of the dominant compounds of essential oils in our study are consistent with the previous findings.

  • MakaleAçık Erişim2018
    Kırmızı biber püresinin verim ve kalitesine mikrodalga ısıtmanın etkisi

    Bozkir, Hamza; Taştan, Özge; Baysal, Taner; Rayman Ergun, Ahsen

    Bu çalışmada kırmızı biber püresinin verim ve kalitesi üzerine konvansiyonel ısıtma tekniğine alternatif olarak mikrodalga ısıtma tekniği uygulanmıştır. Mikrodalga ısıtma uygulaması verim ve çıkış sıcaklığı cevap olacak şekilde yanıt yüzey metodu ile optimize edilmiştir. Mikrodalga ısıtma uygulamasının yanıt yüzey metodu ile optimum koşulları 900 W güç ve 6.52 rpm akış hızı olarak saptanmıştır. Bu optimum çalışma koşullarında verim ve çıkış sıcaklığı %76.76 ve 95 °C olarak bulunmuştur. Konvansiyonel ısıtma uygulaması da mikrodalga ısıtmada ulaşılan aynı sıcaklık derecesinde 95°C ve 9 dk olarak yürütülmüştür. Sonuç olarak mikrodalga ısıtma uygulaması ile verimde %8.07, pektin içeriğinde %17.75, C vitamin içeriğinde %20.6 artış saptanmıştır.

    • SDG 2 · Açlığa Son
    AtıfOpenAlex3
    TR Dizinİncele
  • MakaleAçık Erişim2018
    Genelleştirilmiş Kenmotsu Manifoldları Üzerinde Concircular Eğrilik Tensörü

    Sari, Ramazan; Turgut, Aysel; Ünal, İnan

    Bu çalışmanın amacı genelleştirilmiş Kenmotsu manifoldları üzerinde concircular eğrilik tensörünün çalışılmasıdır. Concircular düz ve 𝜑-concircular düz genelleştirilmiş Kenmotsu manifoldları incelenmiştir. Ayrıca 𝜑-semi simetrik ve 𝜑-concircular semi simetrik genelleştirilmiş Kenmotsu manifoldları üzerine bazı sonuçlar verilmiştir.

    AtıfOpenAlex2TR Dizin2
    TR Dizinİncele
  • MakaleAçık Erişim2018
    Investigation of the contact problem for a partial functionally gradedlayer by using finite element method

    Kaya, Y.; Polat, A.; Bora, P.; Bendine, K.; Özşahin, T.ş.

    The difficulty of producing functionally graded materials (FGM) and the fact that they are more expensive than homogeneous materials emerge as an industrial problem. The starting point of this study is to investigate alternative solution methods that will contribute to the mentioned problem. In parallel, the analysis of the contact problem for a layer, which is loaded by a rigid block and resting on the elastic half plane, is presented in this paper. Only the area under the block is considered as FGM, the other parts are considered homogeneous material, unlike the studies in the literature. There is no analytical solution for this study and it is compared with the solution which is completely functionally graded (FG) layer in the literature by using finite element method (FEM). Material properties of the FG layer are defined by the macro added to the ANSYS program. The analysis for the partial FG layer were compared with the completely FG layer analysis as figures and tables, and as a result it was predicted that partial FGM could be used for the static problems and may also be practical applications in the industry.

    AtıfOpenAlex1TR Dizin1
    TR Dizinİncele
  • MakaleYalnız künye2018
    Prediction and verification of compressive strength of historicalmasonry structures with artificial neural network

    Onat, O.; Yön, B.

    Compressive strength and modulus of elasticity are the key material properties of historical structures to adapt finite element model to obtain correct structural assessment. Generally, modulus of elasticity is adapted by multiplying compressive strength of the material. In this paper, it is aimed to predict compressive strength of historical masonry buildings by using material characteristics and physical characteristics. For this purpose, 21 historical masonry mosques, churches and cathedrals were selected. Unit weight, wall thickness, height of the structure, plan area and modulus of elasticity of the selected 21 historical structures are listed as material characteristics and physical characteristics for using compressive strength prediction. Artificial Neural Network model is used to predict compressive strength of 13 different historical structures. Performance of prediction is verified by using MATLAB among all 34 total historical structures. 0.83 Rsquare is obtained from the prediction model and total prediction performance is obtained from trained data 0.97 and 0.79 from all 34 data by using MATLAB.

  • MakaleYalnız künye2018
    CUSTOMER SEGMENTATION BY USING RFM MODEL AND CLUSTERING METHODS: A CASE STUDY IN RETAIL INDUSTRY

    Dogan, Onur; Ayçin, Ejder; Bulut, Zeki Atil

    Companies need to understand the customers' data better in all aspects. Detecting similarities and differences among customers, predicting their behaviors, proposing better options and opportunities to customers became very important for customer-company engagement. Segmenting the customers according to their data became vital in this context. RFM (recency, frequency and monetary) values have been used for many years to identify which customers valuable for the company, which customers need promotional activities, etc. Data-mining tools and techniques widely have been used by organizations and individuals to analysis their stored data. Clustering, which one of the tasks of data mining has been used to group people, objects, etc. In this paper we propose two different clustering models to segment 700032 customers by considering their RFM values. We detected that the current customer segmentation which built by just considering customers' expense is not sufficient. Hence, models that recommended in this research are expected to provide better customer understanding, well-designed strategies, and more efficient decisions.

    AtıfWoS30
    Web of Scienceİncele
  • MakaleYalnız künye2018Scopus SJRQ3
    SEASONALLY VARIATIONS OF ARSENIC SPECIES IN CHICKEN MEATS CONSUMED BY TURKISH PEOPLE WITH HG-AAS

    Kaya, Gokce; Karaaslan, Nagihan M.; Yaman, Mehmet

    The aim in this study is speciation and determination of arsenic in chicken meat matrix. For this purpose, chicken meat samples consumed commonly by Turkish people belonging to five different companies in Turkey were obtained from markets once per 15 days during 14 months. The samples were digested in microwave oven by using both nitric and hydrochloric acid. It was found that microwave digestion method can be used successfully in the speciation analysis of arsenic. The determination and speciation of As in solutions were carried out by hydride generation-atomic absorption spectrophotometry (HG-AAS). From the observed results, concentrations of As (V) were ranged between 3.0-14.0 ng g(-1) (mean 7.3 ng g(-1)) for breast tissues and 3.0-9.0 ng g(-1) (mean 5.1 ng g(-1)) for leg tissues. The concentrations of As (III) in all studied chicken tissues were found lower than the limit of detection (2 ng g(-1)).

    AtıfWoS2
    Web of Scienceİncele
  • DerlemeYalnız künye2018Scopus SJRQ3
    The International Politics of the Middle East

    Solmaz, Deniz

  • Kitap BölümüYalnız künye2018
    Historical and Sociological Analysis of Women in Turkey

    Tire, Olcay; Demir, Murat Cem; Ozturk, HK

    AtıfOpenAlex2
    Web of Scienceİncele
  • MakaleYalnız künye2018Scopus SJRQ3
    ARTIFICIAL NEURAL NETWORKS AS NEW ALTERNATIVE METHOD TO ESTIMATING SOME POPULATION PARAMETERS OF TIGRIS LOACH (OXYNOEMACHEILUS TIGRIS (HECKEL, 1843)) IN THE KARASU RIVER, TURKEY

    Ozcan, Ebru Ifakat; Serdar, Osman

    In this study, a new method (Artificial Neural Networks) to estimating some population parameters of Tigris loach (Oxynoemacheilus tigris (Heckel, 1843)) collected between 2014 and 2015 in 14 different stations from Karasu River (East Anatolia, Turkey). The total length and weight of the species ranged from 62 to105 mm and from 1.7 to 10.9 g for females and 65 to 100 mm and from 2.4 to 9.8 g for males, respectively. The new maximum length for O. tigris was found to be 105 mm in this study. The length-weight relation of O. tigris was carried out with artificial neural networks (ANNs) and length-weight relationships (LWRs). The results obtained were compared. Length-weight relationships of O. tigris were found as W=0.0049*L-3.29 , R-2 =0.95 for all individuals. According to these values, the growth type of this species was positive allometric (b>3) for all individuals. Regression analysis showed that fish length has high significant correlation with weight (R=0.97, R-2 =0.95, F-1,F-185=31930.3, P<0.001). According to the comparison of the results obtained with MAPE (%), ANNs provide better results than the LWRs. The results of this study could give useful insight that ANNs can be evaluated as an alternative for length-weight relation estimation. The condition factor values (min-max) were observed as 0.680-1.239 for females and 0.699-1.074 for males. No studies have been done before on this species population parameters.

    AtıfWoS15
    Web of Scienceİncele
  • BildiriAçık Erişim2018
    Example of A Kinetic Mathematical Modeling in Food Engineering

    Ertekin, Ozlem; Cattani, C; Atangana, A; Bulut, H; Hammouch, Z; Baskonus, HM; Mekkaoui, T; Agoujil, S

    Mathematical modeling of biochemical, chemical reaction processes facilitates understanding. The kinetics of these reaction processes can be analyzed mathematically and kinetics are presented as systems of differential equations. Mathematical model of a reaction kinetic is studied in this study. Bernoulli-Sub equation function method is used in this study. This example can be new model for food engineering applications.

    AtıfWoS1OpenAlex1
    Web of Scienceİncele
  • MakaleYalnız künye2018Scopus SJRQ3
    TIME-INDEPENDENT RHEOLOGICAL BEHAVIOUR OF PEANUT BUTTER: MODELLING AND ARTIFICIAL NEURAL NETWORK APPLICATION

    Yogurtcu, Hakan

    In this study, the rheological behaviour of semisolid peanut butter samples with a fat ratio of 42.7 % were examined in a temperature interval of 10-50 degrees C via rotational rheometer at different shear rates. Peanut butter samples display non-Newtonian yield-pseudoplastic behaviour. Seven model equalities were used for representing the time-independent rheological behaviour of peanut butter and the representation ability of the models were determined by way of determination coefficient (r(2)), mean absolute percentage error (MA%E), chi-square (chi(2)) and root mean square error (RMSE) statistical parameters. It was observed that the O'foli model was the most successful among the models applied to experimental data. Temperature dependency of viscosity at shear rates of 0.1, 0.4 and 0.75 s(-1) was determined via Arrhenius equality and activation energies varied between the interval of 46818.63-51952.52 J/mol. Three-layer model suggested for estimating viscosity using artificial neural network method was observed to be quite successful.

  • MakaleYalnız künye2018Scopus SJRQ3
    SYNTHESIZING, CHITOSAN COATING AND DETECTING THE NANOTOXIC EFFECT OF THE LEAD SELENIDE (PbSe) QUANTUM DOTS

    Yilmaz, E.; Ates, M.; Sahilli, Y. C.

    Researches on nano-structured materials (<100 nm) are increasing rapidly in the direction of technological developments. Synthesis and modification of quantum dots, known as nanomaterials and nanocrystals, have become an important aspect of nanotechnology. The reason for this is that it has many potential applications in the field, including biomedicine and pharmacology. The unique properties and biological effects of nanostructured particles indicate that they can potentially be used as an alternative in the treatment of various diseases. In this work, PbSe quantum dots were synthesized by chemical method and modified by chitosan coating. The characterization of PbSe was done by TEM, SEM, XRD, DLS and Zeta potential analysis methods. When the morphological structures of the quantum dots obtained by chemical synthesis were examined, round and spherical nano-sized particles (<20 nm) of all PbSe were obtained according to TEM and SEM results. It has been seen that PbSe quantum dots have a positive (+) surface charge and are highly stable (40 + mV). In addition, the increase in oxidation resistance of PbSe coated with chitosan was found in XRD results. As a result of this research, small size and biopolymer coated and thus more stable quantum dots could be obtained. It has also been found that PbSe quantum dots coated with biopolymers like chitosan may have the potential to be used in pharmacology and biomedical applications.

  • MakaleAçık Erişim2018Scopus SJRQ3
    EFFECT OF POST-HEAT TREATMENT ON MICROSTRUCTURE AND MECHANICAL PROPERTIES OF Cu-Fe-Co POWDER ALLOY FABRICATED BY HOT PRESSING

    Çelik, E.; Aslan, A. K.

    In this study, the powder mixture which consists of Cu-Fe-Co was produced by using the method of hot pressing technique. In addition, effect of heat treatment process on microstructure and mechanical properties of this alloy was investigated. Following the hot pressing process applied on the samples, heat treatment was carried out at 950 degrees C for two different dwelling times (90 and 180 minutes). Measured density values were considered as physical characteristics, while hardness and fracture strength values were considered as mechanical characteristics. It was observed that porosity rates of hot pressed samples were decreased by increasing of temperature and pressing parameters. In this study it was observed that Cu was spread in matrix and filled the micro porosities. Hardness values were determined to be decreased as a result of grain growth after heat treatment process. That 4 fold increased elongation % values which were achieved by TRS experiments were observed as well.

    AtıfWoS3OpenAlex2
    Web of Scienceİncele
  • MakaleYalnız künye2018Scopus SJRQ1
    The Origin of Stepped Rock-Cut Tunnels in Eastern Anatolia

    Koroglu, Kemalettin; Danismaz, Harun

    Stepped rock-cut tunnels are among the most interesting remains at many fortresses in Eastern Anatolia. The construction of these tunnels, which are cut deep into rock surfaces up to a length of 350 m, must have been at least as difficult as that of the fortification walls and expertise would have been required. Stepped rock-cut tunnels and associated fortresses in Eastern Anatolia have not so far been evaluated as a whole. The stepped rock tunnels in Eastern Anatolia have been accepted as one of the basic criteria indicating the Urartian period since the beginning of the 20th century. In this study, we first consider the types of stepped rock-cut tunnels in Eastern Anatolia, the purposes of their construction, and their distribution. We then discuss their dating and our interpretation of the period of their arrival in the region of Eastern Anatolia.

    AtıfWoS7OpenAlex4
    Web of Scienceİncele
  • BildiriAçık Erişim2018
    Risk Analysis of Ports in Maritime Industry in Turkey using FMEA Based Intuitionistic Fuzzy TOPSIS Approach

    Senel, Mine; Senel, Bilgin; Havle, Celal Alpay; Cattani, C; Atangana, A; Bulut, H; Hammouch, Z; Baskonus, HM; Mekkaoui, T; Agoujil, S

    Today, international trade is extremely important for countries' economies. It is possible to show the ship's transport as one of the most important execution channels of this trade. International commercial maritime transport subject to many rules and regulations carries many risks in processes such as loading, handling and unloading. Commercial ports are the places where these risks are seen intensely. From this point, many risk components in terms of the process in the port, one of the international commercial port in Turkey, based on a risk analysis is tried to be evaluated in this study. Especially, loading and unloading processes are focused with the directions of industrial experts. The main dimensions of the risks in the port are determined via expert opinions, and the sub-criteria of these dimensions are revealed. In this way, a generic model is proposed based on failure mode and effect analysis and the model is digitized using intuitionistic fuzzy TOPSIS. Interpretations are made in the direction of the obtained analysis results.

    • SDG 9 · Sanayi, Yenilikçilik ve Altyapı
    AtıfWoS15OpenAlex31
    Web of Scienceİncele
  • MakaleAçık Erişim2018
    The new findings on the Late Devonian volcanism in the Eastern Taurides (Develi, Kayseri): Preliminary data

    Çimen, Okay

    The Tauride-Anatolide Platfom includes of widespread Paleozoic (Cambrian to Permian) units, which rarely consist magmatic rocks that were identified in two areas: Eastern Taurides (SW of Tufanbeyli and Yahyali) and Central Taurides (Northern Konya). There are problematic views related to the magmatic evolution of these rocks. The available geochemical database is mostly concentrated on the magmatics from the Central Taurides (Konya Region). In this study, the mafic volcanic rocks were recently found in the Eastern Taurides (Develi-Kayseri). These mafic volcanics are intercalated with the Late Devonian limestones and covered by the Early Carboniferous sandstones. The geochemical charateristics of the volcanic rocks exhibit back arc basin (BAB) features with slightly negative Nb anomalies, normal-MORB (NMORB)-like high field strength element (HFSE) patterns and flat REE profile. The newly found basic volcanic rocks in the Eastern Taurides geochemically resemble the meta-diabase dykes in the Konya and Yahyali regions, which were assigned to a subduction related event. The new data reported in this study will benefit to better understand the mid-Paleozoic evolution of the Taurides.

    AtıfWoS9OpenAlex1
    Web of Scienceİncele
  • MakaleAçık Erişim2018
    Lavery's Frozen: The Psychosexual History of a Sexual Predator and the Poetics of Anti-Paedophilia

    Ögütcü, Uyesi Murat

    Bryony Lavery is an important figure in British feminist drama. She has been noted by critics for her unconventional theatrical methods and themes. Her Frozen (1998) is an anti-paedophiliac play that deals with a psychiatrist who tries to investigate the motives of a paedophile. Investigations into the past of the sexual predator blur the lines between the victim and the victimiser, and the acts of forgiving by the wronged family challenge conventional motifs of revenge. Lavery's use of black and dark comedy further challenges conventional ways of dealing with such serious matters. Therefore, by presenting the psychosexual history of the sexual predator in Bryony Lavery's Frozen, this article will analyse the social and psychological reasons behind sexual abuse in the play, and discuss Lavery's unconventional poetics of anti-paedophilia.

  • BildiriAçık Erişim2018
    Risk Assessment with Failure Mode and Effects Analysis and Grey Relational Analysis Method in Plastic Injection Process

    Ünlükal, Ceren; Senel, Mine; Senel, Bilgin; Cattani, C; Atangana, A; Bulut, H; Hammouch, Z; Baskonus, HM; Mekkaoui, T; Agoujil, S

    This study aims to evaluate the risks that may arise during the production process in a plastic injection manufacturing enterprise with traditional Failure Mode and Effect Analysis (FMEA) and Grey Relational Analysis (GRA). Although it is a widely used analytical technique that helps to identify and reduce the risks of failure in a process, the Failure Mode and Effects Analysis (FMEA) has some drawbacks that the different risks can have the same risk priority values and the weight of risk factors is not take into consideration. This situation has been tried to be eliminated by integrating the FMEA with the GRA. As a result, it is seen that the order of risk priority values of the identified failure changes according to both methods.

    • SDG 9 · Sanayi, Yenilikçilik ve Altyapı
    AtıfWoS5OpenAlex15
    Web of Scienceİncele
  • MakaleYalnız künye2018Scopus SJRQ1
    The role of intraplate strike-slip faults in shaping the surrounding morphology: The Ovacik Fault (eastern Turkey) as a case study

    Yazici, Muge; Zabci, Cengiz; Sançar, Taylan; Natalin, Boris A.

    Although the westward extrusion of the Anatolian Block is mainly compensated along its boundary faults, the North Anatolian and the East Anatolian shear zones, it is internally deformed in a dominant manner by some strike-slip faults as well. To obtain a better understanding about this intraplate deformation of the Anatolian Block, we investigate the tectonic geomorphology of the Ovaak Fault (OF), which is the northeastern member of the Malatya-Ovaak Fault Zone (MOFZ). Further, we apply the most common geomorphic indices, such as the hypsometric curve and integral, longitudinal channel profiles, channel steepness and concavity, mountain front sinuosity, and valley height-width ratio to characterise and quantify the deformation along the OF and the surrounding region where the regional morphology is shaped with the joint effect of palaeo- and neotectonics and other morphological factors such as palaeoglacial processes. The highest hypsometric integral, steepness and concavity values are generally observed along the northeastern strand of the OF (the Munzur Mountains) and the Kemaliye Region. Further, we interpret that high HI and steepness values indicate a regional tectonic uplift because of either a change in fault geometry, which gives rise to the vertical component on the OF, or a regional high convergence zone. Furthermore, this study gives the first calculation of vertical uplift in the northern margin of the Ovacik Basin (OB) as at least 0.5 mm/y for long term deformation history. Thus, our results exhibit that the OF is one of the intraplate strike-slip faults of the Anatolian Block. (C) 2018 Elsevier B.V. All rights reserved.

    AtıfWoS20OpenAlex22
    Web of Scienceİncele