Sürdürülebilir Kalkınma Amaçları
Yazarlar
- Uzun, Sevda(7)
- Araz, Onur(6)
- Ozdes, Duygu(6)
- Duran, Celal(5)
- Şahin, Rıdvan(5)
- Kankal, Murat(4)
- Reis, Hatice Catal(4)
- Saydam Eker, Çiğdem(4)
- Şan, Murat(4)
- Alemdag, Selcuk(3)
- Anaç, Halil(3)
- Cakir, Tufan(3)
- Günen, Mehmet Akif(3)
- Ozturk, Kasif Furkan(3)
- Turk, Veysel(3)
- Çelik, Orkun(3)
- Öztürk, Serkan(3)
- Adali, Zafer(2)
- Alemdağ, Selçuk(2)
- Alkan, Hamdi(2)
- Aydin, Aydanur(2)
- Baltacı, Cemalettin(2)
- Bayram, Adem(2)
- Büyüksaraç, Aydın(2)
- Catal Reis, Hatice(2)
- Cebi, S.(2)
- Cevik Onar, S.(2)
- Dağ, Serhat(2)
- Ekici, Lutfiye(2)
- Gül, Abdulkadir(2)
- Kahraman, C.(2)
- Kahraman, Muhammet Mustafa(2)
- Karatas, Seyda Merve(2)
- Kaya, Ayberk(2)
- Khoshelham, Kourosh(2)
- Köseoğlu, Ali(2)
- Melek, Mesut(2)
- Merdan, Mehmet(2)
- Nacar, Sinan(2)
- Ozeken, Sengul Tugba(2)
Yayınlar
- MakaleYalnız künye2023Scopus SJRQ3Phenolic Components, Mineral Composition, Physicochemical, and Bioactive Properties of Opuntia ficus-indica with Different Drying Methods
Capar, Tugba Dursun; Dedebas, Tugba; Kavuncuoglu, Hatice; Karatas, Seyda Merve; Ekici, Lutfiye; Yalcin, Hasan
Cactus pear fruit (Opuntia ficus-indica) have nutritional and antioxidant properties due to the presence of vitamins, fibers, minerals, and polyphenols. The present paper aims to examine the effects of drying methods (sun, oven, vacuum, and freeze) on the bioactivity and antimicrobial quality of prickly pear fruit. Total phenolic content (TPC), antioxidant (DPPH) and antimicrobial activity, mineral content, phenolic compounds, and color values were investigated. The highest antioxidant activity (DPPH) and color values were observed in the freeze-dried samples, which were very close to the values for fresh samples. The total phenolic content (TPC) of the freeze-dried sample was 503.53 mg GAE/100 g. The most abundant phenolic compound was p-hydroxybenzoic acid (210 ppm) identified in fresh and freeze-dried fruit extract, which may be more effective antimicrobials than the rest. The mineral content of freeze- and vacuum-dried samples was very close to that of fresh fruit. This study indicates that freeze-drying of prickly pear fruit improved the bioactive and antimicrobial properties without leading to nutritional loss.
AtıfScopus5WoS4OpenAlex3
İncele - MakaleAçık Erişim2023Scopus SJRQ2Attachment Anxiety and Interpersonal Relationship Styles: The Mediating Role of Interpersonal Cognitive Distortions
Kaya, Feridun; Odacı, Hatice; Yazıcı Çelebi, Gülin
In the current study, we investigated attachment anxiety and interpersonal cognitive distortions as predictors of interpersonal relationship styles. In this context, we conducted this study to describe the relationships between attachment anxiety, interpersonal cognitive distortions, and interpersonal relationship styles, and to explore the mediating role of interpersonal cognitive distortions in the relationship between attachment anxiety and interpersonal relationship styles. A total of 342 adult women, 201 of whom were married (58.8%) and 141 of whom were single (41.2%), participated in the study, which was conducted based on the correlation model. In the study, data collection tools included the Experiences in Close Relationships Scale, the Interpersonal Relation Styles Scale, and the Interpersonal Cognitive Distortions Scale. In the study, mediation analyses were conducted, and the results indicated that interpersonal cognitive distortions had a partial mediating role in the relationship between attachment anxiety and interpersonal relationship styles.
AtıfScopus6WoS5OpenAlex7İncele - MakaleAçık Erişim2023Scopus SJRQ1Does ecological footprint in ECCAS and ECOWAS converge? Empirical evidence from a panel unit root test with sharp and smooth breaks
Çelik, Orkun; Adali, Zafer; Bari, Bilgin
The costs due to climate change have been increasing day by day. In addition to the risk of losing our planet’s natural assets due to the increasing destructiveness of climate-related natural disasters and extreme climate events, we are also faced with grave economic risks. For this reason, researchers have recently focused on environmental issues. Nevertheless, they generally have investigated developed countries and ignored developing and least developed countries such as African countries. The United Nations (2015) report highlights that African countries should be specially investigated. Hence, the paper analyzes whether the ecological footprint in the Economic Community of Central African States (ECCAS) and Economic Community of West African States (ECOWAS) converges for the period from 1961 to 2017. We employ Bahmani-Oskooee et al.’s (2014) panel unit root test with sharp and smooth breaks. The empirical findings demonstrate that the ecological footprint is stationary in ECCAS and ECOWAS. Stated in other words, the ecological footprint in these countries converges. Therefore, policymakers could implement similar policies to reduce the ecological footprint in these countries. This policy framework paves the way for an effective sustainable development.
AtıfScopus13WoS11OpenAlex18
İncele - MakaleAçık Erişim2023Scopus SJRQ2Engineering Properties of Cemented Paste Backfill with Full-Range Water-Reducing Admixture
Cavusoglu, Ibrahim; Fall, Mamadou
This paper presents the effects of a full-range water-reducing (FRWR) admixture on the key engineering properties of cemented paste backfill (CPB). CPB samples with a certain slump are prepared with 4.5% cement by mass of the tailings and different dosages of an FRWR admixture (superplasticizer contents of 1%, 3%, and 5%) to evaluate their water demand during hydration, rheological properties, self-desiccation ability, and microstructural and mechanical properties. Moreover, cement paste samples with a high water-to-cement ratio (w/c = 2) which are used to model the cement matrix of the CPB are prepared for x-ray diffraction (XRD) scanning and thermal analyses (TAns). The results show that the addition of an FRWR admixture to the studied CPB can reduce its water demand by up to 23% and significantly increase its strength from 1.0 MPa to 2.38 MPa (by approximately 2.4 times) at 28 days. The pore volume of the CPB samples is also significantly reduced from 27.17 to 18.27% due to the capability of the FRWR admixture to reduce water demand. Also, the addition of an FRWR admixture to the CPB results in a substantial decrease (up to 83%) of its yield stress, thereby improving its flowability. The CPB samples with an FRWR admixture are found to have a higher negative pore water pressure, i.e., higher self-desiccation, than the CPB sample without an FRWR admixture. The microstructural analysis also shows that the FRWR admixture has an increasing effect on the hydration products in the CPB mixture.
AtıfScopus12WoS11OpenAlex13İncele - MakaleAçık Erişim2023Scopus SJRQ2Detection of virulence factor genes, antibiotic resistance genes and biofilm formation in clinical Gram-negative bacteria and first report from Türkiye of K.oxytoca carrying both bla OXA-23 and bla OXA-51 genes
Özad Düzgün, Azer; Yüksel, Gamze
The Gram-negative bacteria were isolated from various samples and antibiotic susceptibility testing were performed. The strains were screened by PCR for class 1 integron, virulence and antibiotic resistance genes. blaOXA-23 and blaOXA-51 genes positive samples were cloned into the pGEM-T vector and the plasmids were sent for DNA sequence analysis. The isolates were showed resistance to quinolone, cephalosporin, aminoglycoside, carbapenem and penicillin group antibiotics. Virulence factor genes were identified in 121 strain. The most common virulence gene was determined to be aer (29.78%), followed by sfa (28.19%), afa (27.12%), cnf (21.27%), pap (12.76%) and hly (12.76%). In addition, 34 different virulence patterns were observed. Plasmid-mediated quinolone resistance genes were detected 15 of67 quinolone-resistant isolates. Among carbapenem resistant strains, blaOXA-23 gene was detected in 16 and blaOXA-51 gene in 19 isolates. The strains producing OXA-23 and OXA-51 were Klebsiella oxytoca, Acinetobacter baumannii, E.coli and P.mirabilis. In this study, clinical isolate K. oxytoca carrying both blaOXA-23 and blaOXA-51 genes were identified first time from Türkiye. A high predominance (88.82%) of class 1 integron was detected. In addition, determined that 46.27% of the isolates had the ability to form biofilms. In conclusion since the limited treatment options of antibiotic-resistant Gram-negative pathogens that cause serious infections are an important problem in terms of public health it is important to investigate antibiotic resistance, virulence factor genes and biofilm formation in these pathogens.
AtıfScopus4WoS3OpenAlex4İncele - MakaleYalnız künye2023Scopus SJRQ1Correlation coefficients of simplified neutrosophic multiplicative sets and their applications in clustering analysis
Köseoğlu, Ali; Şahin, Rıdvan
The use of fuzzy sets, intuitionistic fuzzy sets and neutrosophic sets can often handle with real-life problems that contain incomplete and uncertain information. The 0–1 scale is used to deal with such information which is graded symmetrically and uniformly but, some problems consist of unsymmetrical and non-uniform information. Although intuitionistic multiplicative set (IMS) is a powerful tool to deal with this kind of problems, due to the dependence of hesitant information to the membership and non-membership functions in IMS, it brings a restriction to decision-makers while working on the real-life problems such as applications of correlation coefficients and clustering. In this study, we propose novel correlation coefficients (CCs) of simplified neutrosophic multiplicative sets (SNMSs) which is defined recently by removing the shortages of IMSs. Firstly, we give SNMS-based operations, fulfil the deficiencies in the theoretical background of IMS and establish a theoretical structure for the SNMS. Then, we propose novel correlation coefficients (CC) of SNMS and show some of their important properties. Finally, we apply the CCs to a clustering problem to confirm the efficiency of the proposed SNMS and its correlation coefficients.
AtıfScopus5WoS4OpenAlex6İncele - MakaleAçık Erişim2023Scopus SJRQ2Rheumatic diseases and gut microbiota publications in 2002–2022: a Scopus‑based bibliometric analysis
Kocyigit, Emine; Kocak, Tevfik
Rheumatic diseases (RDs) include a variety of autoimmune disorders defined by severe inflammation, primarily affecting the joints, tendons, ligaments, bones, and muscles. Recent research has revealed the association between rheumatic diseases and gut microbiota, thereby providing insights into the underlying mechanisms of disease pathogenesis. The objective of this study was to evaluate the quantity and quality of scientific research regarding the association between RDs and gut microbiota, as well as to elucidate the characteristics of worldwide research output in this field. The present bibliometric analysis was carried out using the Scopus database, using the keywords "rheumatology," "arthritis," and "gut microbiota." The study involved determining the number of articles, the number of active countries with journals, the identification of prolific authors, and the collection of citation data. Additionally, analyses of trends were conducted. 503 articles in all were reviewed. Collaboration networks were visualized using mapping techniques. The number of articles on RDs and gut microbiota exhibited a consistent pattern from 2002 to 2022 (p < 0.05). The five most productive countries were China (n = 128; 25.45%), the United States (n = 101; 20.07%), Italy (n = 40; 7.95%), the United Kingdom (n = 20; 3.98%), and Japan (n = 17; 3.38%). Israel, Italy, Belgium, and Portugal had the highest values regarding the number of articles per million population. Australia, Canada, and the United Kingdom were the top three countries regarding average citation count. This bibliometric analysis evaluates and synthesizes global scientific output on RDs and gut microbiota. The literature on the association between rheumatic diseases and gut microbiota is growing. Supporting researchers in countries with limited involvement in this field will contribute to its growth.
AtıfScopus6WoS7İncele - MakaleAçık Erişim2023Scopus SJRQ3Adsorption Behaviour of EDTA Modified Magnetic Fe3O4 Coated Brewed Tea Waste on Cr(VI) Removal
Yilmaz Camoglu, Aslihan; Ozdes, Duygu; Duran, Celal
The study focused on fabricating a novel magnetic Fe3O4 loaded and EDTA modified brewed tea waste (TW-Fe3O4-EDTA) as a cheap, environmentally friendly, and efficient adsorbent for the removal of Cr(VI) ions from aqueous medium in a batch system. Characterization of the prepared adsorbent was performed with different techniques. Adsorption experiments were implemented at different conditions including initial solution pH (1.0–7.0), equilibrium time (1–480 min), adsorbent dosage (1.0–20.0 g L–1), and initial Cr(VI) concentration (50–1000 mg L–1). The optimum adsorption performance was observed at pH 2.0 with 120 min of contact time. Maximum adsorption capacity of 114.9 mg g–1 was acquired for TW-Fe3O4-EDTA which is much higher than the recently developed adsorbents for Cr(VI) removal. Adsorption process was well explicated by Freundlich isotherm model and the adsorption rate is described in accordance with pseudo-second order kinetic model. It was observed that common salts did not have a notable influence on Cr(VI) adsorption. The results of the study indicated that TW-Fe3O4-EDTA can be applied as an effective adsorbent in heavy metal removal as an alternative to many expensive adsorbents available in the literature.
AtıfScopus5WoS5OpenAlex5İncele - MakaleAçık Erişim2023Scopus SJRQ1Daily precipitation performances of regression-based statistical downscaling models in a basin with mountain and semi-arid climates
Şan, Murat; Nacar, Sinan; Kankal, Murat; Bayram, Adem
The impacts of climate change on current and future water resources are important to study local scale. This study aims to investigate the prediction performances of daily precipitation using five regression-based statistical downscaling models (RBSDMs), for the first time, and the ERA-5 reanalysis dataset in the Susurluk Basin with mountain and semi-arid climates for 1979–2018. In addition, comparisons were also performed with an artificial neural network (ANN). Before achieving the aim, the effects of atmospheric variables, grid resolution, and long-distance grid on precipitation prediction were holistically investigated for the first time. Kling-Gupta efficiency was modified and used for holistic evaluation of statistical moments parameters at precipitation prediction comparison. The standard triangular diagram, quite new in the literature, was also modified and used for graphical evaluation. The results of the study revealed that near grids were more effective on precipitation than single or far grids, and 1.50° × 1.50° resolution showed similar performance to 0.25° × 0.25° resolution. When the polynomial multivariate adaptive regression splines model, which performed slightly higher than ANN, tended to capture skewness and standard deviation values of precipitations and to hit wet/dry occurrence than the other models, all models were quite well able to predict the mean value of precipitations. Therefore, RBSDMs can be used in different basins instead of black-box models. RBSDMs can also be established for mean precipitation values without dry/wet classification in the basin. A certain success was observed in the models; however, it was justified that bias correction was required to capture extreme values in the basin.
AtıfScopus26WoS27İncele - MakaleYalnız künye2023Scopus SJRQ2Determination of Yield, Yield Components, and some Quality Parameters of Bread Wheat (hexaploid) Cultivars with Different Origin in Arid Agricultural Conditions
Sirat, Abdulveli
There is need to breed wheat cultivars that are important in human nutrition with high seed yields and improved quality in terms of consumption. This study was conducted at Gumushane-Siran (Turkey) during the 2016–2017 and 2017–2018 cultivation seasons (winter) to identify bread wheat cultivars that show superior performance in terms of seed yield and quality characteristics. This research included 20 bread wheat cultivars using three replications based on the randomized complete block design. Heading date, plant height, spike length, number of seeds per spike, grain weight per spike, seed yield, and some quality characteristics (thousand seed weight, hectoliter weight, protein percentages, Zeleny sedimentation, and wet gluten percentage values) of cultivars were investigated. The maximum seed yield was obtained from Canik 2003 cultivar with 3749 kg ha−1, the lowest seed yield was noted as 3032 kg ha−1 in the Mufitbey cultivar. However, Canik 2003 cultivar came to the forefront in terms of spike length, number of seeds per spike, grain weight per spike, hectoliter weight, thousand seed weight, protein percentages, Zeleny sedimentation, and wet gluten percentage. In the cultivars included in the experiment, it was determined that there were positive and significant correlations between seed yield and number of seeds per spike, thousand seed weight, hectoliter weight, wet gluten percentage value, grain weight per spike, and protein percentages. The results showed that Canik 2003, Ekiz, Goksu-99, Karahan-99, and Selimiye come to the fore in terms of yield and yield elements and quality characteristics, and it seems appropriate to recommend.
AtıfScopus4WoS4OpenAlex5İncele - Derleme MakaleAçık Erişim2023Scopus SJRQ1“Who am I?” A qualitative meta-synthesis of Chemotherapy‐induced alopecia and body image perception in breast cancer patients
Kocan, Sema; Aktug, Cemile; Gursoy, Ayla
Background: Since alopecia may be the first physical evidence and sign of cancer diagnosis and treatment, it may have a more serious and challenging effect on a woman than the loss of breast tissue. Objective: The purpose of this study was to summarize the current qualitative research which explores the body image perceptions of breast cancer patients with chemotherapy-induced alopecia. Material and methods: We searched three electronic databases and reviewed studies from December 2011 to December 2021 for qualitative results analysing the experiences of women with breast cancer and chemotherapy-induced alopecia. The Joanna Briggs Institute critical (JBI) appraisal tool was used to assess the quality of the targeted studies. The Meta-synthesis process developed by Sandelowski and Barroso was used to collect and analyse the data. Results: We discovered two main and five sub-themes from the meta-synthesis findings of 11 qualitative studies involving 225 women. The main themes were “I am not comfortable in this body” and “Who am I?”. The first main theme revealed patients’ intense reactions to their hair loss: “I'm in emotional chaos”, “I am looking for a place to hide” and “I knew it and now I’m experiencing it”.The second main theme of “Who am I?” contained two sub-themes: “What did my hair take from my femininity when it was gone?” and “Will I lose my partner after my hair?”. Conclusion: Meta-synthesis provided an up-to-date and integrated interpretation of scientific results about the experiences of women with breast cancer, alopecia, and their body image perceptions. This interpretation will facilitate a more comprehensive understanding of the alopecia-body image relationship. Thus, the aim of the meta-synthesis results is that these will contribute to nurses’ understanding of how alopecia, although a temporary symptom, affects women's perceptions of body image.
AtıfScopus27WoS24OpenAlex23İncele - MakaleYalnız künye2022Scopus SJRQ1GIS-based determination of potential instabilities and source rock areas on the Torul-Kürtün (Gümüşhane) motorway, rockfall, and protection structure analyses
Alemdag, Selcuk; Bostanci, Hasan Tahsin; Gacener, Elif
The Torul-Kürtün-Tirebolu motorway, one of the alternative routes for access between the Eastern Anatolia Region and the Black Sea Region, has an important traffic potential in this respect. However, rockfall events that occur frequently in almost every season especially in the part of the route between Torul and Kürtün may occasionally cause loss of life and property and lead to disruption in transportation in a much more common way. Departing from this point, the parts of the motorway that pose a greater threat in terms of slope instability and rockfall potential were selected as the study area. Instability maps produced by the kinematic analysis results showed that the probability of toppling type failure in the study area was quite higher, while the general results were as follows: the probability of toppling type failure was found in 204 different locations and approximately 97,900 m2 of area. Taking account of geographic information system (GIS)–based final instability maps, profile lines were determined for potential rockfalls in the instability-intense source rock areas. The profile lines which were determined were analyzed two-dimensionally in the RocFall 7.0 computer program. The rockfall analyses revealed that the rolling rock blocks in the section SP7 shall remain on the surface of the slope, while the rock blocks in other sections shall reach the road route. The application of barrier types determined by barrier sensitivity analysis on profile lines will minimize or completely prevent potential hazards.
AtıfScopus13WoS12OpenAlex17İncele - MakaleYalnız künye2022Scopus SJRQ1Performance comparison of deep learning and machine learning methods in determining wetland water areas using EuroSAT dataset
Günen, Mehmet Akif
Wetlands are critical to the ecology because they maintain biodiversity and provide home for a variety of species. Researching, mapping, and conservation of wetlands is a challenging and time-consuming process. Because they produce temporal and geographical information, remote sensing and photogrammetric approaches are useful tools for analyzing and managing wetlands. In this study, the water areas of five different wetlands obtained with Sentinel-2 images in Turkey were classified. Although obtaining large amounts of high-dimensional dataset labeled for various land types is costly, it is a significant advantage to use it after model training in a wide range of applications. In this paper, the EuroSAT dataset was used in the validation process. Proposed deep learning–based 1D convolutional neural networks (CNN) and traditional machine learning methods (i.e., support vector machine, linear discriminant analysis, K-nearest neighborhood, canonical correlation forests, and AdaBoost.M1) were compared quantitatively (i.e., accuracy, recall, precision, specificity, F-score, and image quality assessment metrics) and qualitatively. Finally, pairwise comparison was made with chi-square-based McNemar’s test. There is a statistical difference between 1D CNN and machine learning method (except the support vector machine vs linear discriminant analysis in Test 1 area). CNN models outperform machine learning algorithms in terms of non-linear function approximation and the ability to extract and articulate data features. Since 1D CNNs can process data in a highly complex and unique feature space, they are very successful in segmenting strongly related and highly correlated discrete signals. It also has advantages over machine learning methods for water body extraction in that it can be integrated with sophisticated image pre-processing and standardization tools, is less susceptible to low-level random noise, and provides shift in variations and contrast-invariant image local transforms.
AtıfScopus74WoS53OpenAlex72İncele - BildiriYalnız künye2022Scopus SJRQ4Assessment of Rapid Urbanization Effects with Remote Sensing Techniques
Yagmur, Nur; Dervisoglu, Adalet; Bilgilioglu, B. Baha; Ahmed, M.B.; Boudhir, A.A.; Kara, I.R.; Jain, V.; Mellouli, S.
Istanbul is the most populous city in Turkey. The population, which was approximately 5.5 million in 1985, has reached 15.5 million in 2020. Population growth is the most important factor behind human activities that put pressure on the environment. An increasing population means depletion of limited resources, increasing environmental problems, and rapid urbanization. In parallel with the increase in population and urbanization, there has also been an increase in demand for housing, leading to new residential areas in almost every district of Istanbul. This study examined the transformation from vegetation areas to residential areas between 1985 and 2020 in a selected region in Buyukcekmece, one of the 39 districts of Istanbul. The relationship between land use and land cover (LULC) change in the area and Land Surface Temperature (LST) change caused by urbanization was analyzed. It is seen that the built-up area has increased from 57.1 ha to 781.4 ha in 35 years. In every five years, an increase in surface temperatures was determined in parallel with increasing urbanization, and this increase was determined as about 5.4℃ from 1985 to 2020. Also, when the temperature data of the Buyukcekmece Meteorological station is analyzed, it is seen that there has been an increase of approximately 2 ºC in air temperatures in the last five years. In addition, movements were observed in the stability of structures in rapid urbanization areas after analyzing with the PSI time series InSAR method. The main causes were determined as construction sites around the buildings and geological conditions of the ground, which are triggered by urbanization.
AtıfScopus1OpenAlex2İncele - MakaleAçık Erişim2022Scopus SJRQ2On the second order of accuracy stable difference scheme for integral type non-local elliptic source identification problem
Ashyralyyev, Charyyar
In this study, a source identification problem for elliptic differential equation with integral type non-local condition is discussed. The second order of accuracy difference scheme for elliptic non-local source identification problem is studied. Using spectral resolution of a self-adjoint operator, stability and coercive stability estimates for solution of difference scheme are established. Subsequently, difference scheme for an approximate solution of multi-dimensional boundary-value problem with integral type non-local and first kind boundary conditions is investigated for stability. Numerical results for 2D and 3D examples are illustrated.
AtıfScopus2WoS1OpenAlex2İncele - MakaleAçık Erişim2022Scopus SJRQ2Neutrosophic QUALIFLEX based on neutrosophic hesitancy index for selecting a potential antivirus mask supplier over COVID-19 pandemic
Şahin, Rıdvan
In order to handle simultaneously the cardinal and ordinal information in decision-making process, QUALIFLEX (QUALItative FLEXible multiple criteria method) is a very well-known decision-making approach. In this work, we extend the classical QUALIFLEX method to neutrosophic environment and develop a neutrosophic QUALIFLEX (N-QUALIFLEX) method that uses the newly defined distance-based comparison approach. It is highly effective in solving multi-criteria decision problems in which both ratings of alternatives on criteria and weights of criteria are single-valued neutrosophic numbers (SVNNs), and their aggregated values are single-valued neutrosophic hesitant fuzzy numbers (SVNHFNs). A neutrosophic hesitancy index (NHI) of a SVNHN is introduced based on degrees of the truth-membership, indeterminacy-membership and falsity-membership, which is used to measure the degree of hesitancy of SVNHN. Considering the NHIS of SVNHFNs, we propose a distance-based comparison approach to determine the magnitude of the SVNHFNs. Then, we apply the comparison approach to define the concordance/discordance index, the weighted concordance/discordance index and the comprehensive concordance/discordance index that are steps of the developed N-QUALIFLEX. By taking all possible permutations of alternatives with respect to the level of concordance/discordance into account, we determine the order of alternatives in final decision. Finally, a practical example on antivirus mask selection over the COVID-19 pandemic is provided to present the effectiveness and applicability of the proposed method, and a comparative study is conducted to show the advantages of the proposed method over other existing methods.
AtıfScopus3WoS2OpenAlex4İncele - MakaleAçık Erişim2022Scopus SJRQ2Investigation of Yield and Quality Parameters of Some Local and Newly Registered Bread (hexaploid) Wheat (Triticum aestivum L.) Genotypes Under Rainfed Agricultural Conditions; [Untersuchung von Ertrags- und Qualitätsparametern einiger lokaler und neu registrierter (hexaploider) Brotweizen-Genotypen (Triticum aestivum L.) unter Regenfeldbaubedingungen]
Sirat, Abdulveli
Hexaploid bread wheat is an economically important crop grown worldwide. There is need to new breed cultivars to meet the needs of ever-growing populations. This study was carried out to determine the yield and quality traits of some newly bread wheat cultivars and locally popular wheat cultivars. The research was carried out at Siran-Gumushane (Turkey) during 2015–2016 and 2016–2017. A total of 24 bread wheat genotypes (14 commercial cultivars and 10 local genotypes) were used as plant materials in the study. The experiment was carried out in randomized complete block design with three replications. Duration of heading, plant height, spike length, number of seeds per spike, seed weight per spike, seed yield, thousand seed weight, hectolitre weight, protein percentage, zeleny sedimentation, and wet gluten percentage values were investigated in this study. Statistically significant different results were noted among some parameters according to the results obtained from the research. The maximum seed yields were obtained from Saraybosna, Ozcan, Tosunbey, Sakin, Sonmez-2001 and Altay-2000 cultivars. The maximum thousand seed weight was obtained from the Kate-A1 variety, while the Sakin variety stood out first in terms of zeleny sedimentation trait. It has been determined that Saraybosna, Ozcan and Sakin cultivars have high seed yield and have high quality under dry farming conditions. If these cultivars are used in regional conditions, bread wheat production quantity and quality will be increased.
AtıfScopus1WoS1OpenAlex2İncele - MakaleAçık Erişim2022Scopus SJRQ2Optimization of tuned mass damper inerter for a high-rise building considering soil-structure interaction
Araz, Onur
The dynamic responses of the buildings and the optimum parameters of tuned mass damper inerter (TMDI) may change significantly when soil-structure interaction (SSI) is considered. Thus, it is necessary to consider the effect of the SSI in the optimization of TMDI. The study aims at proposing a methodology for optimization of TMDI parameters in reducing maximum structural responses of a high-rise building under earthquake considering the SSI effects. The equations of motion for time-domain analysis are derived for obtaining seismic-induced vibrations of a multi-story shear building with TMDI when the SSI is considered. An improved particle swarm optimization (IPSO) is used to obtain the optimum parameters. The aim of the optimization is to reduce the amplitude of the acceleration transfer function (ATF). The effectiveness of the optimally designed TMDI is assessed for twelve earthquake records with different frequency contents. The effect of the different mass ratios (µ), inertance ratios (β) and support conditions on control performance of the TMDI are investigated in detail. Numerical results proved that the SSI effect and the inertance ratio have a significant impact on the optimal design and effectiveness of the TMDI. From the seismic analysis results, it is seen that the controlled displacement response usually increases with the increase in the inertia ratio for both the fixed and flexible foundation, and a lower seismic response is obtained in the building controlled by TMD compared with the TMDI with different inertance ratios.
AtıfScopus40WoS41OpenAlex39İncele - MakaleAçık Erişim2022Scopus SJRQ1Determination of rock quality designation (RQD) in metamorphic rocks: a case study (Bayburt-Kırklartepe Dam)
Alemdag, Selcuk; Sari, Mahmut; Seren, Aysel
The role and importance of rock mass classification systems from past to present in engineering designs are indisputable. Therefore, the correct estimation of the parameters that make up these systems is essential in terms of reliability, time, and economy. One of the crucial parameters commonly used in rock mass classification is the rock quality designation (RQD). This study aimed to indirectly estimate the RQD value determined from the core samples obtained from the exploration drillings. In this context, P wave velocity (Vp) was obtained by seismic refraction tomography (SRT) from the geophysical measurements applied in the metamorphic rock mass, and the discontinuity frequency parameter was obtained from the line survey studies carried out on the rock mass. What determined RQD values with the help of simple regression analyzes and empirical equations with high estimation capacity using Vp and discontinuity frequency parameters were obtained without drilling in the rock mass. Accordingly, the performance indexes of the equations produced by different researchers and the equations produced in this study were evaluated in determining the RQD parameter. In the generated equations, the highest coefficient of determination value depending on joint frequency and Vp wave velocity with RQD was calculated as R2 = 0.89 and R2 = 0.82, respectively. When the produced equations are evaluated according to the performance indexes, it is seen that the empirical equations obtained by previous studies have the highest root mean square error (RMSE) and values account for (VAF) values compared to the other equations and have very high estimation capacities. Thanks to the equations with high estimation capacity, the RQD value was determined depending on the joint density and Vp speeds.
AtıfScopus25WoS24OpenAlex25İncele - MakaleAçık Erişim2022Scopus SJRQ3Three remarkable Bryophyte species new to Turkey and South–west Asia
Erata, Hüseyin
Turkey, which is surrounded by seas on three sides and consists of three phytogeographic regions, has a very large biological diversity. As a result of extensive bryophyte surveys across the different parts of the Dereli district in Giresun province from Turkey, Dicranum transsylvanicum, Nardia geoscyphus, and Andreaea crassinervia are reported as a new record for Turkey and Southwest Asia. Also, Dicranum transsylvanicum is new to Asia. Descriptions, illustrations, geographic distribution, ecological characteristics, and comparisons with morphologically similar taxa are provided.
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