Sürdürülebilir Kalkınma Amaçları
Yazarlar
- Gul, Muhammet(82)
- Akkurt, Nevzat(67)
- Güler, Ömer(66)
- Baskonus, Haci Mehmet(62)
- Bulut, Hasan(60)
- Tekin, H.O.(52)
- ALMisned, Ghada(49)
- Yucesan, Melih(43)
- Yildirim, Numan(42)
- Yildirim, Nuran Cikcikoglu(38)
- Paksoy, Mehmet Yavuz(36)
- Serdar, Osman(36)
- Zengin, Gokhan(36)
- Ince, Muharrem(34)
- Celik, Erkan(33)
- Benzer, Fulya(32)
- Kocabaş, Mehmet(30)
- Sulaiman, Tukur Abdulkadir(30)
- Tanyol, Mehtap(29)
- Yildirim, Ozal(28)
- Aslan, Naim(26)
- Kök, Mediha(26)
- Özkul, İskender(26)
- Ates, Mehmet(25)
- Danabas, Durali(25)
- Kutluyer, Filiz(25)
- Can, Erkan(24)
- Kutlu, Banu(23)
- Onat, Onur(23)
- Demir, Veysel(22)
- Erten, Fusun(22)
- Guler, Omer(22)
- Say, Yakup(22)
- Güler, Seval Hale(21)
- Yaman, Mehmet(21)
- Baykal, Duygu Sen(20)
- Sançar, Taylan(20)
- Susam, Selim Orhun(20)
- Cakilcioglu, Ugur(19)
- Orhan, Cemal(19)
Yayınlar
- Kitap BölümüYalnız künye2022A Fanonian Reading of The Black Album by Hanif Kureishi
Hamarat, Abdulkadir; Baykara, T; Kacmaz, E
- MakaleAçık Erişim2022Demirkopru Baraj Golu'nde ?lk Viviparus contectus (Millet, 1813) Kayd? ve Baz? Biyometrik Parametrelerinin De?erlendirilmesi
Kocabas, Filiz K. U. T. L. U. Y. E. R.; Kocabas, Mehmet
The aim of this study is to investigate some biometric characteristics of Viviparus contectus (Millet, 1813) in Demirkopru Dam Lake, Manisa province. Measurements of 180 individuals collected in the study area were performed using calipers and precision balances, and weight (g), width (mm), height (mm), aperture length and width (mm), spiral height (mm), body whorl height data were obtained. It was determined as 20.23 +/- 5.16 mm for shell height, 16.11 +/- 3.33 mm for shell width, 11.93 +/- 2.39 mm for aperture height, 9.71 +/- 2.11 mm for aperture width, 15.71 +/- 3.87 mm for body spiral height, 4.49 +/- 1.73 mm for spiral height and 4.50 +/- 0.93 g for weight. According to principal components analysis, there is a strong relationship between Shell height (KH), Shell width (KW), Aperture height (AH) and Body helezone height (VHS).V. contectus species has been reported for the first time from the region with this study.
AtıfWoS3OpenAlex2TR Dizin1
İncele - MakaleAçık Erişim2022OTTOMAN MILLING FROM CLASSICAL TO MODERN TIMES
Baskutlu, Salih
This article explores flour milling in the Ottoman State from traditional grinding techniques to modern grinding technologies. Although it investigates the historical progress of flour milling in general, the study aims to draw attention to the technological transformation in the milling industry. This scope focuses on the milling types used in the Ottoman world during the premodern periods. Secondly, it uncovers its milling activities and tax policies. Then, the article examines the emergence, development, operating systems, and legal structure of steam mills concerning industrialization efforts. To this end, it studies the competition between traditional mills and steam mills, its causes, and its effects on society. The study presents drawings of the mill models based on the documents found in Ottoman State Archives and to other sources. Grinding the grains with vital importance and serving them to public consumption was one of the primary concerns of the Ottoman State. For this reason, they operated water, wind, and muscle-powered mills for a long time. The emergence of industrialization brought about steam mills with high production capacity. The Ottomans, accordingly, followed the developments carefully to provide the citizens with healthier and hygienic flour with new production models.
AtıfOpenAlex6TR Dizin5İncele - MakaleYalnız künye2022ESSENTIAL OIL COMPOSITION OF ENDEMIC Hypericum ekerii FROM TURKEY AND CHEMOTAXONOMIC COMPARISONS
Yuce-Babacan, Ebru; Demirpolat, Azize
In our study, chemotaxonomic comparisons and essential oil composition of Hypericum ekeriNtice&Aytac (Hypericaceae) endemic to Turkey was studied for the first time. The composition of the essential oils of Hypericum ekerii was investigated and 45compounds were determined in total. GC and GC-MS analysis result showed a-pinene 18.73%, limonene 7.28%, caryophyllene oxide 6.71% and b-caryophyllene 6.47% as the majorcomponents. Based on the major chemical components, clusterinvestigated was applied for all the Hypericum species on Drosanthesection studied. With H. ekerii and all Drosanthesection species were grouped based on the presence of a specific compound and a dendrogram was created, and this section grouped the species into clusters. The chemical distribution of essential oil compounds in the genus pattern were discussed in means of natural products, major components and chemotaxonomy.
- MakaleYalnız künye2022Scopus SJRQ1Analysis of discontinuous contact problem in two functionally graded layers resting on a rigid plane by using finite element method
Polat, Alper; Kaya, Yusuf
In this study, the problem of discontinuous contact in two functionally graded (FG) layers resting on a rigid plane and loaded by two rigid blocks is solved by the finite element method (FEM). Separate analyzes are made for the cases where the top surfaces of the problem layers are metal, the bottom surfaces are ceramic and the top surfaces are ceramic and the bottom surfaces are metal. For the problem, it is accepted that all surfaces are frictionless. A two-dimensional FEM analysis of the problem is made by using a special macro added to the ANSYS package program The solution of this study, which has no analytical solution in the literature, is given with FEM. Analyzes are made by loading different Q and P loads on the blocks. The normal stress (sigma y) distributions at the interfaces of FG layers and between the substrate and the rigid plane interface are obtained. In addition, the starting and ending points of the separations between these surfaces are determined. The normal stresses (sigma x, sigma y) and shear stresses (tau xy) at the point of separation are obtained along the depth. The results obtained are shown in graphics and tables. With this method, effective results are obtained in a very short time. In addition, analytically complex and long problems can be solved with this method.
AtıfWoS23İncele - MakaleAçık Erişim2022TAIL DEPENDENCE ESTIMATION BASED ON SMOOTH ESTIMATION OF DIAGONAL SECTION
Susam, Selim Orhun
This paper is mainly developed around the diagonal section which is strongly related to tail dependence coefficients as defined in Nelsen [19]. Hence, we propose a flexible method for estimating tail dependence coefficients based on the new smooth estimation of the diagonal section based on the Bernstein polynomial approximation. To assess the performance of the new estimators we conduct the Monte-Carlo simulation study. As a result of the simulation study, both estimators perform satisfactory performance. Also, the estimation methods are illustrated by real data examples.
AtıfWoS1OpenAlex1İncele - MakaleYalnız künye2022Scopus SJRQ2Non-similar solutions and sensitivity analysis of nano-magnetic Eyring-Powell fluid flow over a circular cylinder with nonlinear convection
Basha, H. Thameem; Reddy, S. R. R.; Prasad, V. Ramachandra; Son, Kwon Joong; Ahammad, N. Ameer; Akkurt, Nevzat
AtıfOpenAlex15İncele - MakaleAçık Erişim2022Scopus SJRQ2Geochemical and isotopic (Sr-Nd-Pb) signature of crustal contamination in Na-alkali basaltic magmas of South-East Turkey
Agostini, Samuele; Di Giuseppe, Paolo; Manetti, Piero; Savasçin, Mehmet Yilmaz; Conticelli, Sandro
AtıfOpenAlex18İncele - MakaleAçık Erişim2022Anatomical, Micromorphological, Karyological and Biochemical study of Scutellaria orientalis subsp. virens and Scutellaria salviifolia
Acar, Mikail; Tasar, Neslihan; Akbulut, Guelcin Beker
In this study, the anatomical and micromorphological structure, karyological characteristics and biochemical content of Scutellaria orientalis subsp. virens and endemic Scutellaria salviifolia, whose distributions areas overlap, were compared. Some anatomical and micromorphological differences were observed on the taxa; scleranchymatic pericycle layer on the stem, stomata density, distribution of trichomes, as well as the main vascular bundle and general shape of the petiole. The chromosome numbers of both taxa were determined as 2n = 22. However, there was a difference between chromosome length range and total chromosome length. The chromosome numbers and chromosome morphologies of these species have been defined for the first time in this paper. Differences in biochemical content were observed between species. Chlorophyll a (Chl a), total chlorophyll (Total Chl), total carbohydrate and malondialdehyde (MDA) contents were determined higher in leaf and stem samples of S. orientalis subsp. virens than S. salviifolia. There was no significant difference between the two taxa in terms of chlorophyll b (Chl b) content. Carotenoid (Car) content was detected higher in leaves samples of S. orientalis subsp. virens, but no significant difference was found between stems samples. Also, the effect of taxa on biochemical contents in relation to the habitat they live in is given in this study.
AtıfWoS2OpenAlex2İncele - MakaleYalnız künye2022Scopus SJRQ4Some results on N (k)-contact metric manifolds
Altin, Mustafa; Yoldas, Halil Ibrahim; Ünal, Inan
In this study, some geometric properties of N(k)-contact metric manifolds, which are important class of contact manifolds, have been investigated by using a special connection (CY-connection). First, we give some fundamental results on N(k)-contact metric manifolds admitting CY-connection. Then, we obtain curvature properties of such manifolds. We prove that an N(k)-contact metric manifold admitting R* (xi, X).R* = 0 condition is an N (-1/4) metric manifold, where R* is the Riemannian curvature tensor of CY-connection. Also, we examine an N(k)-contact metric manifold admitting CY-connection under W* (xi, X).S* = 0 condition for generalized quasi-conformal curvature tensor W* of CY-connection. Finally, we consider a 3-dimensional N(k)-contact metric manifold admitting CY-connection.
- MakaleYalnız künye2022Scopus SJRQ4Semi-invariant submanifolds of normal complex contact metric manifolds
Vanli, Aysel Turgut; Ünal, Inan
In this paper, we study on semi-invariant submanifolds of normal complex contact metric manifolds. We give the definition of such submanifolds and we obtain useful relations. Moreover, we give the integrability conditions of distributions.
- MakaleAçık Erişim2022Scopus SJRQ2A statistical overview to the chromosome characteristics of some Centaurea L. taxa distributed in the Eastern Anatolia (Turkey)
Açar, Mikail; Taşar, Neslihan
This study performed statistical analyses based on chromosome micromor-phology of 18 Centaurea taxa, two of which are endemic. ANOVA, Correlation analy-sis, Discriminant analysis and Cluster analysis were performed to determine the relationships between taxa based on chromosomal features. In addition, according to the data obtained from these analyses, the relationships between taxa and sections were tried to be interpreted. As a result of the analyses, the taxa C. drabifolia Sm. floccosa (Boiss.) Wagenitz & Greuter, C. kotschyi (Boiss. & Heldr.) Hayek var. floccosa (Boiss.) Wagenitz and C. behen L. and C. polypodiifolia Boiss pseudobehen (Boiss.) Wagen-itz were located close to each other. These taxa are located in the same sections in the morphological classification. Besides, in the Discriminant analysis, the taxa of Acrocen-tron, Microlophus, Cheirolepis sections were closely located compared to all other taxa. However, results were not seen to cover all taxa of the sections. This study revealed various chromosomal characteristics of some Centaurea taxa distributed in the Eastern Anatolia. It also performed statistical analyses on these data. While determining the relationships between taxa according to chromosomal characteristics, comparing chromosomal formulas and indices collectively and evaluating the relationships was found to be relatively consistent with morphological classification.
AtıfScopus3WoS3OpenAlex3
İncele - MakaleAçık Erişim2022Scopus SJRQ3The Effectiveness Of Trigger Point Treatment In Chronic Pelvic Pain; A Pilot Randomised Controlled Trial; [Wirksamkeit der Triggerpunkt-Therapie bei chronischen Unterbauchschmerzen – eine randomisierte kontrollierte Pilotstudie]
Atas, Kubra; Mutlu, Ebru Kaya; Yasa, Cenk; Ugurlucan, Funda Gungor
Objective To investigate the effectiveness of ischemic compression and low-level laser therapy methods combined with exercise on the myofascial trigger points in women with Chronic Pelvic Pain and to determine which method is more effective. Methods It was a parallel designed, single-blind pilot randomized clinical trial. Patients were recruited at physiotherapy laboratory of the Istanbul University from September 2017 to June 2019. Twenty-eight women patients with Chronic Pelvic Pain were included into the trial. Patients were randomized into two groups. Group 1 received ischemic compression and Group 2 received low-level laser therapy twice a week for 6 weeks. Both groups received the same standard exercise program. Pain, range of motion, pelvic floor symptom severity, quality of life, satisfaction, anxiety, and depression were assessed after 6 weeks, and 1-year follow up. Results Following the treatment, significant differences were observed within both group subjects in pain, range of motion, symptom severity, quality of life, and anxiety-depression (p < 0.05). This significant improvement in pain, symptom severity, symptoms related quality of life and pain subgroup of Short Form 36, continued after 1-year follow up (p < 0.05). In comparison between group, Group 1 have more significant improvement than Group 2 in terms of symptoms related quality of life (p < 0.05). Conclusion Both methods have shown efficacy and can be used safely in chronic pelvic pain patients. Because it is more effective on symptoms related quality of life, the ıschemic compression method may be preferred for primary use.
AtıfScopus1WoS1OpenAlex2İncele - MakaleAçık Erişim2022Scopus SJRQ2Effect of chlorpyrifos on some biochemical changes in Cyprinus carpio: the protective effect of ellagic acid
Mişe Yonar, Serpil; Yonar, Muhammet Enis; Ural, Mevlüt Şener; Pala, Ayşegül
In this study, ameliorative effects of ellagic acid (EA) on oxidative stress induced by chlorpyrifos (CPF) in carp, Cyprinus carpio, were investigated. Fish were divided into six groups: C (no treatment), EA (100 mg kg fish−1), CPF-1 (0.040 mg L−1), CPF-2 (0.080 mg L−1), CPF-1 + EA, and CPF-2 + EA. CPF and EA were applied simultaneously for 14 days and, at the end of the study, liver, kidney, and gill samples were collected from fish. On the taken tissue samples, malondialdehyde (MDA) level and some antioxidant enzyme (superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), and glutathione-S-transferase (GST)) activities were evaluated. The results demonstrated statistically significant increases in the MDA levels of the CPF-1 and CPF-2 groups. On the other hand, the MDA levels were significantly decreased by EA administration. Also, CPF exposure caused statistically significant increases in the SOD and GST activities and statistically significant decreases in the CAT and GPx activities. However, treatment with EA reversed negative alterations in the SOD, CAT, GPx, and GST activities. Therefore, the results of this study results showed that simultaneous treatment with EA alleviates CPF-induced oxidative stress in fish.
AtıfScopus8WoS10OpenAlex10
İncele - MakaleYalnız künye2022Scopus SJRQ1Dynamic response model and equivalent solution method of large-diameter buried energy transportation pipeline under moving load
Xu, Qian; Yang, Gang; Li, Zhuorui; Zou, Zhenwei; Zheng, Qiang; Zhong, Liqiong; Chen, Xingli; Akkurt, Nevzat; Du, Yanping; Xiong, Yaxuan
Long-distance energy pipeline pass under roads, subjecting them to repeated stress and posing pipeline safety problems. To simulate the effects of vehicles driving over energy transmission pipeline, this paper examines large-caliber buried pipelines in the suburbs. In this study, a mechanical action model of vehicle-soil-pipeline (VSP) interactions to transform the process of a vehicle driving into the dynamic process of a load changing with time in the specified area was created. The VSP model was used to analyze the influence of moving load and position on the structural characteristics of the pipeline section. An equivalent solution method with high precision and high calculation efficiency was proposed. The results showed that as the loading position approaches the pipeline or the load increases, the stress value at the top of the pipeline gradually exceeded the stress value at the bottom of the pipeline and became the area with the maximum stress value. The minimum stress location also changed from the lower half near the pipeline bottom (Point D-135°) to the upper half near the pipeline top (Point B-45°or Point H-315°). Using the polynomial fitting method, the stress values of the maximum points were equivalently converted. Under the premise of considering pipeline safety, the most suitable functional relationship for the moving load equivalent model was obtained.
AtıfScopus16OpenAlex13İncele - MakaleAçık Erişim2022Scopus SJRQ1Graphene reinforced hybrid-bioceramic coatings on porous-Ti6Al4V for biomedical applications: morphology, corrosion resistance, and cell viability
Aslan, N.; Aksakal, B.; Dikici, B.; Sinirlioglu, Z.A.
The effect of Hydroxyapatite (HA)-based coatings reinforced with reduced graphene oxide (rGO) on porous-Ti6Al4V (P-Ti6Al4V) alloys in terms of electrochemical corrosion and cell viability for potential biomedical applications was investigated in this study. The scaffold-porous surfaces of P-Ti6Al4V were coated by the biocomposite structure of HA and reduced graphene oxide (rGO) at various porosity rates (40, 50, and 60%) by using the sol–gel dip-coating method. The results of 0.5, 1.0, and 1.5 wt% rGO-HA coatings were compared to coatings that contained only HA (free-rGO). Raman spectroscopy, X-ray diffractometer, and scanning electron microscopy were used for structural and morphological characterizations. The coatings in vitro corrosion susceptibilities were tested in simulated body fluid at 37 °C. Compared to free-rGO coatings, the results showed that rGO reinforcements phases reduced the corrosion rate of the scaffolds. The corrosion rate increased as the porosity content of the scaffolds increased. In vitro cell viability tests revealed that samples of 0.5 and 1.0 wt% rGO-HA coating groups performed better than the control and 1.5 wt% rGO-HA samples. Graphical abstract: [Figure not available: see fulltext.]
AtıfScopus8WoS7OpenAlex6İncele - MakaleAçık Erişim2022Scopus SJRQ2Assessment of heavy metal accumulations and health risk potentials in tomatoes grown in the discharge area of a municipal wastewater treatment plant
Arslan Topal, E. Işıl; Topal, Murat; Öbek, Erdal
Some heavy metals were detected in organs of the tomatoes grown in the discharge area of effluents of a municipal wastewater treatment plant. Also, the health risk potentials of heavy metals in the tomatoes consumed by human were investigated. The highest concentrations for Cu, Ni, Cr, Mn and Pb were followed the order of root>leaf>stem>fruit. When the bioconcentration factors values calculated for bioconcentration of metals from effluent to stem and root were examined, the highest values were determined for Cu. When translocation factors values are examined, the highest translocation from root to leaf was determined for Cd. The highest translocation from stem to leaf was determined for Pb. The estimated total exposure dose for male, female and children was listed as Zn>Mn>Cu>Cr>Ni>Pb>Cd. In terms of dietary, we can list the non-carcinogenic risks of heavy metals as children> female> male. The highest carcinogenic risk was calculated for Cr via dietary intake.
AtıfScopus17WoS18OpenAlex20İncele - MakaleYalnız künye2022Scopus SJRQ1Experimental and material characterization of composites, including waste iron and marble powder
Gülmez, Nihan
Due to its fine particle size, waste marble slurry originating in cutting and processing units mixes into the air after drying, causing environmental and health problems in nearby areas. On the other hand, large amounts of iron particles are generated as metalworking industry waste, affecting the environmental system. In this study, 0%, 10%, and 20% marble powder (instead of cement) and iron particles (instead of fine aggregate) were used in mixtures, and the composites produced were subjected to two different curing periods: 7 and 28 days. The physical, mechanical, microstructural, and thermal properties of the fresh and hardened composites were ascertained via bulk density, consistency, porosity, water absorption, capillary water absorption, strength tests, particle size distribution, X-ray diffraction (XRF), X-ray fluorescence (XRF), scanning electron microscopy and energy dispersive spectroscopy (SEM–EDS), and thermogravimetric analyses (TGA). The results revealed that minimum water absorption (8.5%) and porosity (19.8%) values were achieved in 28-day composites produced with 10% marble–20% iron wastes among all composites. Thus, iron particles substituted for natural aggregates were mainly responsible for the increase in mechanical performance. A maximum flexural strength of 5.9 MPa and a compressive strength of 26.7 MPa were observed in 28-day composites containing 0% marble–20% iron wastes. Furthermore, capillary water absorption tended to decrease with the substitution of 10% marble powder.
AtıfScopus3WoS2İncele - MakaleYalnız künye2022Scopus SJRQ1Numerical evaluation of the coupled/uncoupled effectiveness of a fluid-solid-thermal multi-field model for a long-distance energy transmission pipeline
Wang, Kang; Xie, Kai; Zhang, Hui; Qiang, Yujie; Du, Yanping; Xiong, Yaxuan; Zou, Zhenwei; Zhang, Mingbao; Zhong, Liqiong; Akkurt, Nevzat
As the main component of energy transmission, long-distance energy transmission pipeline (LETP), whose safety problem is becoming more and more prominent with the development of the oil and gas transportation industry, is susceptible to the traffic loading, temperature loading, pressure loading and other loadings. In this paper, the mechanical characteristics of LETP under the interaction of temperature loading and pressure loading are investigated. Based on the theory of multi-field coupling, the mathematical model of fluid-solid-thermal coupling of fluid-filled pipelines under the combined effect of temperature and pressure loadings is established and verified. Meanwhile, an equivalent model is proposed to accurately calculate the stress of any pipeline segment in LETP. The results show that the coupling of temperature loading and the pressure loading is significantly affected by the end-side constraints of the pipelines. For strong end-side constraint, the coupling effect of temperature and pressure loadings has a significant effect on the calculated equivalent stress. The difference between the stress solution under coupling effect and decoupling effect is above 30 MPa. However, for weak end-side constraints, the error is within 10 MPa. The equivalent stress can be approximated by the decoupling solution instead of the coupling solution.
AtıfScopus15OpenAlex15İncele - MakaleAçık Erişim2022Scopus SJRQ3Decolorization of Remazol Brilliant Violet 5R and Brilliant Green dyes by Hypnum cupressiforme using response surface methodology-central composite design methodology: toxicity assessment studies by Daphnia magna
Korkmaz, Volkan; Erguven, Gokhan Onder; Tanyol, Mehtap; Alatas, Mevlut; Yildirim, Numan
This study is the first report that aims to optimize the removal of Remazol Brilliant Violet 5R (RBV 5R) and Brilliant Green (BG) from synthetic solutions using Hypnum cupressiforme samples from Abant Mountains of Bolu (Turkey) as biosorbent and to conduct toxicity evaluation studies of treated wastewater using Daphnia magna. Optimization was performed using central composite design under response surface methodology with the operational factors of dye concentration, H. cupressiforme dose, and process time. The optimal conditions for dye concentration, H. cupres-siforme dose, and process time obtained by the numerical analysis were 19.02 mg/L, 0.18 g/50 mL and 110.59 min for RBV 5R, while these values were 18.57 mg/L, 0.18 g/50 mL and 99.45 min for BG, respectively. At the optimum values, maximum RBV 5R and BG removal were achieved as 99.39% and 99.22%, respectively. The D. magna mortality rates showed that treatment with adsorption were sufficient to remove the complete toxicity of dyes especially for RBV 5R.
AtıfScopus2WoS2OpenAlex2İncele