Sürdürülebilir Kalkınma Amaçları
Yazarlar
- Baskonus, Haci Mehmet(25)
- Sulaiman, Tukur Abdulkadir(22)
- Bulut, Hasan(21)
- Agoujil, S(8)
- Atangana, A(8)
- Baskonus, HM(8)
- Benzer, Fulya(8)
- Bulut, H(8)
- Cattani, C(8)
- Hammouch, Z(8)
- Mekkaoui, T(8)
- Gul, Muhammet(7)
- Can, Erkan(6)
- Celik, Erkan(6)
- Kutluyer, Filiz(6)
- Onat, Onur(6)
- Serdar, Osman(6)
- Demir, Yakup(5)
- Erişir, Mine(5)
- Kutlu, Banu(5)
- Yildirim, Ozal(5)
- Yıldırım, Özal(5)
- Aksu, Önder(4)
- Akyuz, Emre(4)
- Erguven, Gokhan Onder(4)
- Gürarslan Baş, Nazan(4)
- Karaaslan, Nagihan M.(4)
- Karatay, Gülnaz(4)
- Kizak, Volkan(4)
- Kocabaş, Mehmet(4)
- Çimen, Okay(4)
- Acharya, U. Rajendra(3)
- Aktürk, Tolga(3)
- Alataş, Mevlüt(3)
- Baloglu, Ulas Baran(3)
- Baskonus, H.M.(3)
- Bulut, H.(3)
- Cattani, Carlo(3)
- Celik, E.(3)
- Firat, Erhan(3)
Yayınlar
- MakaleYalnız künye2018Scopus SJRQ2Chemoprotective effects of curcumin on doxorubicin-induced nephrotoxicity in wistar rats: by modulating inflammatory cytokines, apoptosis, oxidative stress and oxidative DNA damage
Benzer, Fulya; Kandemir, Fatih Mehmet; Kucukler, Sefa; Comaklı, Selim; Caglayan, Cuneyt
Doxorubicin (DXR) is one of the most important chemotherapeutic agent. However, nephrotoxicity reduces its clinical utility in humans. The aim of the study was to investigate protective effects of curcumin (CMN) against DXR-induced nephrotoxicity. Rats were subjected to oral treatment of CMN (100 and 200 mg/kg body weight) for 7 days. Nephrotoxicity was induced by single intra peritoneal injection of DXR (40 mg/kg body weight) on the fifth day and then the experiment was terminated on the eighth day. Nephroprotective effects of CMN were associated with decrease in serum toxicity markers and increase in antioxidant enzyme activities. CMN was able to reduced the levels of inflammatory markers such as TNF-α, NF-κB, IL-1β, iNOS and COX-2 in the rats. It also reduced the expressions of apoptotic marker including caspase-3, and oxidative DNA damage marker including 8-OHdG. Collectively, these findings indicated that CMN protect against DXR-induced nephrotoxicity.
AtıfScopus116WoS111OpenAlex122
İncele - BildiriAçık Erişim2018Scopus SJRQ2Evaluating deep learning models for sentiment classification
Ay Karakuş, Betül; Talo, Muhammed; Hallaç, İbrahim Rıza; Aydin, Galip
Deep learning has emerged as an effective solution to various text mining problems such as document classification and clustering, document summarization, web mining, and sentiment analysis. In this paper, we describe our work on investigating several deep learning models for a binary sentiment classification problem. We used movie reviews in Turkish from the website www.beyazperde.com to train and test the deep learning models. We also report a detailed comparison of the models in terms of accuracy and time performances. Two major deep learning architectures used in this study are Convolutional Neural Networks and Long Short-Term Memory. We built several variants of these models by changing the number of layers, tuning the hyper-parameters, and combining models. Additionally, word embeddings were created by applying the word2vec algorithm with a skip-gram model on a large dataset (∼ 13 M words) composed of movie reviews. We investigate the effect of using the pre-word embeddings with these models. Experimental results have shown that the use of word embeddings with deep neural networks effectively yields performance improvements in terms of run time and accuracy.
AtıfScopus55WoS40OpenAlex64İncele - MakaleAçık Erişim2018Scopus SJRQ4Comparison of oxidant and antioxidant status of Çoruh trout (Salmo coruhensis), anatolian trout (Salmo rizeensis) and rainbow trout (Oncorynchus mykiss) spermatozoa
Kutluyer, Filiz; Kocabaş, Mehmet; Eri̇Şi̇r, Mine; Benzer, Fulya
The aim of present study was to compare oxidant and antioxidant status of Çoruh trout (Salmo coruhensis), Anatolian trout (Salmo rizeensis) and rainbow trout (Oncorynchus mykiss) spermatozoa. Fish were obtained from Uzungöl. Enzymatic antioxidant activities (superoxide dismutase, catalase, glutathione peroxidase), glutathione and lipid peroxidation (malondialdehyde) were determined in spermatozoa of three trout species. Results indicated that catalase (23.36±0.36 K/g.protein), glutathione peroxidase (74.00±1.5 U/g.protein), glutathione (0.57±1.24 µmol/g.cell) and malondialdehyde levels (6.55±2.01 nmol/g cell) were highest levels in Anatolian trout (S. rizeensis) spermatozoa. In conclusion, differences among species caused alterations in the antioxidant and malondialdehyde levels.
AtıfScopus1OpenAlex2TR Dizin1
İncele - MakaleYalnız künye2018Scopus SJRQ4Checklist of Turkish bryophyte vegetation; [Pregled vegetacije mahovina u Turskoj]
Alataş, Mevlüt
U radu je prikazana lista vegetacijskih jedinica mahovina u Turskoj, radena prema metodologiji Braun-Blanquet- a. Ukupno je utvrdeno prisustvo 41 asocijacije i 19 subasocijacija, svrstanih u 19 sveza, 12 redova i 8 klasa. Štaviše, zabeleženo je i 6 zajednica i 17 jedinica nepoznatog fitocenološkog statusa. Briološke vegetacijske jedinice su prikazane u skladu sa njihovim akvatičnim, teresticnim i epifitskim karakterom, zajedno sa njihovim lokalitetima i sinonimima. © 2018 Institute of Botany and Botanical Garden Jevremovac, Belgrade.; A list of the known bryophyte syntaxa in Turkey compiled according to the methodology of Braun-Blanquet is presented in this study. Altogether, 41 associations and 19 subassociations belonging to 19 alliances, 12 orders, and eight bryosociological classes have been determined to date in Turkey. Moreover, six communities and 17 units of unknown phytosociological status have also been reported. The bryosociological syntaxa are grouped on the basis of their aquatic, terrestrial, or epiphytic character and given together with their localities and synonyms.
AtıfScopus9WoS5İncele - MakaleYalnız künye2018Scopus SJRQ4Epiphytic bryophyte vegetation of the Samanli Mountains (Sakarya-Kocaeli-Yalova-Bursa) in Northwest Turkey; [Epifitska vegetacija mahovina Samanli planine (Sakarya-Kocaeli-Yalova-Bursa) u severozapadnoj Turskoj]
Gözcü, Merve Can; Uyar, Güray; Alataş, Mevlüt; Ezer, Tülay; Ören, Muhammet
Epifitska vegetacija mahovina Samanli planine u severozapadnom delu Turske je istraživana na osnovu 191 snimka uzetih Braun-Blanquet metodom sa stabla drveća tokom 2015. i 2016. godine. Kao rezultat ovih istraživanja, utvrdeno je prisustvo 9 epifitskih asocijacija mahovina i 3 subasocijacije. Medu njima, 2 asocijacije i 2 subasocijacije, Neckero - Anomodontetum viticulosi, Neckero - Anomodontetum viticulosi - anomodontetosum viticulosi, Syntrichietum laevipilae, Syntrichietum laevipilae - orthotrichetosum lyellii, konstatovane su po prvi put na teritoriji Turske. Takode, epifitska vegetacija mahovina je analizirana pomoću multivarijantskih analiza, a uradene su i analize životnih formi i životnih strategija vrsta unutar vegetacijskih jedinica. Kao rezultat, dok su dugoživeće višegodišnje jedinke sa visokim reproduktivnim potencijalom dominantne u epifitskoj vegetaciji mahovina, najćešća životna forma je gusta prostirka. © 2018 Institute of Botany and Botanical Garden Jevremovac, Belgrade.; In the present study, epiphytic bryophyte vegetation of the Samanli Mountains (northwest Turkey) was investigated on the basis of 191 relevés taken from the trunks of trees by the Braun- Blanquet method between 2015 and 2016. Nine epiphytic bryophyte associations and three subassociations were determined as a result of this investigation. Among them, two associations and two subassociations, viz., Neckero - Anomodontetum viticulosi, Neckero - Anomodontetum viticulosi - anomodontetosum viticulosi, Syntrichietum laevipilae, and Syntrichietum laevipilae - orthotrichetosum lyellii, were recorded for the first time in Turkey. In addition, epiphytic bryophyte vegetation was classified and ordinated using multivariate analysis techniques such as two-way indicator species analysis and detrended correspondence analysis. Besides that, the life form and life strategies of the species within syntaxa were analysed. As a result, it is established that while perennial stayers with a high sexual reproductive effort were dominant within the epiphytic bryophyte vegetation comparatively, the most abundant life form was the mat rough type.
AtıfScopus6WoS5İncele - MakaleAçık Erişim2018Scopus SJRQ2Investigation of various soliton solutions to the Heisenberg ferromagnetic spin chain equation
Sulaiman, Tukur Abdulkadir; Aktürk, Tolga; Bulut, Hasan; Baskonus, Haci Mehmet
This study uses two mathematical approaches in constructing dark, bright, kink-type and singular soliton solutions to the Heisenberg ferromagnetic spin chain equation. The (2+1)-dimensional Heisenberg ferromagnetic spin chain equation describes nonlinear dynamics of magnets. The acquired results in this study may help in explaining some physical meanings of some nonlinear physical models arising in electromagnetic waves. For instance, the hyperbolic tangent arises in the calculation of magnetic moment and rapidity of special relativity, the hyperbolic cotangent arises in the Langevin function for magnetic polarization. The 2-, 3-dimensional and the contour plots of all the acquired solutions are presented.
AtıfScopus72OpenAlex84İncele - Derleme MakaleYalnız künye2018Scopus SJRQ3What makes us happy? Socioeconomic determinants of subjective well-being in Turkey
Birdal, Murat; Acun, Serdar; Onuk, Parla
This article explores the socioeconomic determinants of subjective well-being in Turkey based on the nationwide Turkish Statistical Institute (TURKSTAT) survey held in 2015. Our empirical results point out relationships between subjective well-being and a wide range of factors such as age, gender, marital status, education, income, financial debt, health, religiosity, employment status, type of employment, social security, crime victimization, and perception of insecurity and revealed significant gender-based disparities. Findings from this survey contribute to a broader discussion on determinants of well-being and the role of gender differences, enabling us to draw cultural comparisons.
AtıfScopus3OpenAlex2İncele - MakaleAçık Erişim2018Scopus SJRQ2Dark, bright and other optical solitons to the decoupled nonlinear Schrödinger equation arising in dual-core optical fibers
Baskonus, Haci Mehmet; Sulaiman, Tukur Abdulkadir; Bulut, Hasan
The dynamical systems of soliton propagation through optical fibers for trans-continental and trans-oceanic distances is one of the most interesting areas of study. Optical solitons are restrained electromagnetic waves that stretch in nonlinear dispersive media and allow the intensity to remain unchanged due to the balance between dispersion and nonlinearity effects. In this study, we successfully acquire dark, bright, combined dark–bright, singular and combined singular soliton solutions to the decoupled nonlinear Schrödinger equation arising in dual-core optical fibers by using the extended sinh-Gordon equation expansion method. The constraint conditions for the existence of valid soliton solutions are given. We discuss how change in parameters affect the solitons transmission. We present the 2D, 3D and the contour graphs to some of the reported solutions.
AtıfScopus47OpenAlex48İncele - MakaleYalnız künye2018Scopus SJRQ2Effects of voltage gradient and fat content on changes of electrical conductivity of frozen minced beef meat during ohmic thawing
Cevik, Mutlu; Icier, Filiz
Frozen minced beef meat samples having different fat contents of 2, 10, and 18% were thawed until their center temperature reached −1 °C in the ohmic thawing system. Ohmic thawing was conducted by applying different voltage gradients (10, 13, and 16 V/cm) at ambient temperature of 4 ± 0.5 °C. Effective electrical conductivity (EEC) values of the samples at −1 °C were 0.5774 ± 0.0558, 0.4231 ± 0.0510, and 0.3933 ± 0.0693 S/m for 2, 10, and 18% fat contents, respectively. The change of effective electrical conductivity with temperature was linear for temperature range of −18 °C/−9.5 °C while it was exponential for temperature range of −9.5 °C/−4 °C. Above −4 °C, the polynomial model was best model describing the change of EEC with temperature. Ohmic thawing process could be applied as an alternative novel technology for thawing of meat and meat products. It is thought that the results of present study would contribute valuable information to open literature. Practical applications: Researchers have given attention on investigation of alternative thawing methods for foods in recent years. Ohmic thawing has high energy efficiency, causes low drip loss and does not produce any waste water. Since it is controlled by heat generation caused due to passing of alternative current through food, the information on change of its electrical conductivity is crucial. The minced beef sample has heterogeneous structure such as muscle, connective, and adipose tissues. Thus, its effective electrical conductivity (EEC) varies depending on its composition. In this study, the relations between temperature and EEC of minced beef samples having different fat contents were determined for four different temperature ranges existed during ohmic thawing at different voltage gradients. EEC was very low at temperatures below −4 °C, and then it sharply increased above this temperature. Results of present study would give valuable information to food industry for setting up industrial scale ohmic thawing systems for meat and meat products.
AtıfScopus52WoS47İncele - MakaleAçık Erişim2018Scopus SJRQ2Novel complex and hyperbolic forms to the strain wave equation in microstructured solids
Baskonus, Haci Mehmet; Sulaiman, Tukur Abdulkadir; Bulut, Hasan
This study applies the powerful sine-Gordon expansion method in acquiring some new solutions to the strain wave equation in micro-structured solids arising in mathematical physics. The strain wave equation in micro-structured solids is used in modelling wave propagation in micro-structured materials. We successfully acquire some new solitary wave solutions with hyperbolic function structure. By taking some suitable values of parameters involved in the solutions, we plot the 2D, 3D and contour graphs of all the obtained solutions in this study.
AtıfScopus34WoS34OpenAlex36İncele - MakaleAçık Erişim2018Scopus SJRQ3Optical solitons and other solutions to the conformable space–time fractional complex Ginzburg–Landau equation under Kerr law nonlinearity
Sulaiman, Tukur Abdulkadir; Baskonus, Haci Mehmet; Bulut, Hasan
This study reveals the dark, bright, combined dark–bright, singular, combined singular optical solitons and singular periodic solutions to the conformable space–time fractional complex Ginzburg–Landau equation. We reach such solutions via the powerful extended sinh-Gordon equation expansion method (ShGEEM). Constraint conditions that guarantee the existence of valid solitary wave solutions are given. Under suitable choice of the parameter values, interesting three-dimensional graphs of some of the obtained solutions are plotted.
AtıfScopus37İncele - BildiriYalnız künye2018Control of fluid flow around a square prism by fluid injection at low Reynolds number
Flrat, Erhan; Tsitouras, C.; Simos, T.; King Saud University, College of Sciences, Department of Mathematics , P. O. Box 2455, Riyadh; Ural Federal University, Group of Modern Computational Methods, 19 Mira Street, Ekaterinburg
The two-dimensional wake structure behind a fixed, rigid square prism with fluid injection from the single, relatively narrow slot (h/H=0.1) has been computed at low Reynolds number (Re=ρ·U∞·H/μ=100 based on the side length of the prism and freestream velocity) using a finite volume method (FVM). Injection surface (i.e. front and rear) and injection rate (from IR=UJ/U∞=0 to 3 by 0.2 step) are the key parameters that determine the aerodynamic and flow characteristics. Two flow patterns for the prism with front jet and four flow patterns for the prism with rear jet were identified with respect to IR. Flow patterns were associated with changes in flow and aerodynamic characteristics.
AtıfOpenAlex1İncele - MakaleAçık Erişim2018Scopus SJRQ3A New Application Based on GPLVM, LMNN, and NCA for Early Detection of the Stomach Cancer
Korkmaz, Sevcan Aytaç; Esmeray, Furkan
In this article, speeded-up robust features (SURF) for each image have been calculated. Discrete Fourier transform (DFT) method has been applied to these SURF. High dimensions of these SURF–DFT feature vectors are reduced to low dimensions with large-margin nearest neighbor (LMNN), Gaussian process latent variable models (GPLVM), and neighborhood component analysis (NCA). When size reduction process was done, effect on the GPLVM, LMNN, and NCA of the 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10 feature numbers has been examined. These features are classified by naive Bayes (NB) classifier. Thus, SURF_DFT_GPLVM_NB, SURF_DFT_NCA_NB, and SURF_DFT_LMNN_NB methods for gastric histopathological images have been developed. Classification results obtained with these methods have been compared. According to the obtained results, the highest classification result was obtained as 90.24% by using 4 features by SURF_DFT_GPLVM_NB method for second group images.
AtıfScopus5WoS4OpenAlex7İncele - MakaleAçık Erişim2018Scopus SJRQ3A fuzzy dematel model proposal for the cause and effect of the fault occurring in the auxiliary systems of the ships' main engine
Balin, A.; Demirel, H.; Celik, E.; Alarcin, F.
The ship engine room has a structure that meets a number of needs related to administrative conditions. Even if a simple mechanical error is considered to be the addition of human errors into the complex structure of the engine room, it can lead to undetected loss. How the causes and effects of the detected faults affect the system is as important as an effective fault detection system to detect the fault and take immediate action against any possible engine failure. This study reveals the causes of problems occurring in the main engine auxiliary systems including cooling, lubricating, cooling oil and fuel systems, and the extent of these problems affecting the system. While the Decision Making Trial and Evaluation Laboratory supports to identify and analyze the error detection of auxiliary systems with respect to causal effect relation diagram, fuzzy sets deal with the uncertainty in decision-making and human judgements through the DEMATEL. Therefore, fuzzy DEMATEL approach is applied to examine the causes and the weights of the faults and their relation to each other in the auxiliary systems. When we look at the result of the proposed approach, fuel oil pump failures has more impact on the all system and air cooler problems has the second highest place among the all errors.
AtıfScopus7WoS4OpenAlex8İncele - MakaleYalnız künye2018Scopus SJRQ2Comparison of Some Soil Fungi in Bioremediation of Herbicide Acetochlor Under Agitated Culture Media
Erguven, Gokhan Onder
In this study, we aimed to find out the biodegradation efficiency of some soil fungi types on herbicide acetochlor with acetochlor active material, chemical oxygen demand (COD), biochemical oxygen demand (BOD5) and total organic carbon (TOC) parameters. We also try to determine the population dynamics of these fungi via turbidity. The fungi cultures were isolated from agricultural field in in Thrace region of Turkey. Each fungi enriched in malt extract broth media and 1 mL of these enriched media was inoculated into 100 mL of acetochlor solutions that suggested for using application concantrations in agricultural field for farmers (11000 mg L−1) for sunflower and corn agriculture. Bioremediation results of acetochlor have shown different results according to the types of fungi. Our results indicate that Tolypocladium geodes and Cordyceps cicadae might be used in acetochlor bioremediation with a significant acetochlor, COD, TOC and BOD5 reduction and can be used for rehabilitation of agricultural fields or receiving environments for removal the opposite effects of acetochlor or other herbicides.
AtıfScopus37WoS26OpenAlex36İncele - MakaleYalnız künye2018Scopus SJRQ2Solutions of partial differential equations using the fractional operator involving Mittag-Leffler kernel
Yavuz, Mehmet; Ozdemir, Necati; Baskonus, Haci Mehmet
In this paper, time-fractional partial differential equations (FPDEs) involving singular and non-singular kernel are considered. We have obtained the approximate analytical solution for linear and nonlinear FPDEs using the Laplace perturbation method (LPM) defined with the Liouville-Caputo (LC) and Atangana-Baleanu (AB) fractional operators. The AB fractional derivative is defined with the Mittag-Leffler function and has all the properties of a classical fractional derivative. In addition, the AB operator is crucial when utilizing the Laplace transform (LT) to get solutions of some illustrative problems with initial condition. We show that the mentioned method is a rather effective and powerful technique for solving FPDEs. Besides, we show the solution graphs for different values of fractional order α, distance term x and time value t. The classical integer-order features are fully recovered if α is equal to 1.
AtıfScopus115WoS106OpenAlex131İncele - MakaleAçık Erişim2018Scopus SJRQ3In vitro effect of L-tryptophan on the quality and fertilizing capacity of sperms of endangered species of trouts
Kutluyer, Filiz
The present study was focused on determining the effect of L-tryptophan on quality of sperm and its fertilizing capacity in endangered trout Salmo coruhensis, Anatolian trout Salmo rizeensis and rainbow trout Oncorhynchus mykiss. Different activation media (NaCl, 0.3%; NaHCO3, 1%) were supplemented with L-tryptophan [Control (0), 0.5, 1, 2, 3, 4 and 5 mM] for assessing sperm motility and its duration, fertility and hatching rate of eggs. The results from the present study indicated that addition of L-tryptophan increased the motility rate and duration in O. mykiss, S. rizeensis and S. coruhensis compared to control group. Highest sperm motility rate and its duration, and fertility and hatching rate of eggs of O. mykiss, S. rizeensis and S. coruhensis were 0.5 mM, 5 mM and 2 mM, respectively. To conclude, sperm quality and fertility were positively affected by quantitative changes different concentrations of L-tryptophan. In addition, L-tryptophan can be used in activation medium for O. mykiss, S. rizeensis and S. coruhensis. Copyright 2018 Zoological Society of Pakistan.
AtıfScopus12WoS12OpenAlex10İncele - MakaleYalnız künye2018Scopus SJRQ2Dissemination of heavy-metal contamination in surface sediments of the Uzunçayır Dam Lake, Tunceli, Turkey
Kutlu, Banu
The objective of this study was to determine the heavy-metal concentrations (Cu, Pb, Zn, Ni, Mn, Fe, As, Cd, Cr, and Hg), evaluate the pollution levels, and determine the concentration of chlorophyll-a and organic carbon in the surface sediments of the Uzunçayır Dam Lake, Tunceli, Turkey, between 2015 and 2016. In order to evaluate the effect of the pollution level in the study area, the contamination factor (CF), enrichment factor, potential ecological risk index, and pollution load index were used. The concentrations of the studied heavy metals were ordered as follows: Fe > Mn > Ni > Cr > Zn > Cu > Pb > As > Cd > Hg. The highest CF value was found for the Ni element among the studied heavy metals in the Dam Lake. Moreover, the highest CF mean value was found for the As contamination level. According to the toxicity analyses in the study area, the potential toxic effect of sediments was not at a very serious level.
AtıfScopus12WoS14OpenAlex14İncele - MakaleYalnız künye2018Scopus SJRQ1Effects of salicylic acid and organic selenium on wheat (Triticum aestivum L.) exposed to fenoxaprop-p-ethyl
Akbulut, Gulcin Beker; Yigit, Emel; Kaya, Armagan; Aktas, Aydın
In this study, we evaluated effects of fenoxaprop-p-ethyl herbicide on wheat (Triticum aestivum L.). The wheat plants were grown in pots containing perlite. Fenoxaprop-p-ethyl was applied to adequately grown T. aestivum plants at determined doses (1 mM, 1.5 mM, 2.2 mM, 3.4 mM and 5.1 mM) via spraying. The effects of this herbicide on some antioxidant enzymes, lipid peroxidation, carotenoid, total chlorophyll and total phenolic were investigated on days 1, 5 and 10 following the application. Environmental pollutants cause oxidative stress, production of free radicals and changes in antioxidants. Synthesis of signal molecules such as salicylic acid (SA) is important for the stress response of plants. In addition to this, although selenium is known not to be an obligatory element for plants, low dose selenium has positive effects on the plant growth. We also investigated the effects that are elicited on parameters above mentioned by the treatment of exogenous 0.5 mM SA and 0.004 mM organic selenium (SeI) separately. Our findings reveal that SA and SeI, which are externally applied before the germination of seeds that are exposed to herbicide stress, becomes effective in reduction of the negative effects of fenoxaprop-p-ethyl, with regard to antioxidant system, lipid peroxidation, pigment system and total phenolic. When we evaluate the study results, our findings suggest that especially SA plays a protective role on wheat against herbicide stress.
AtıfScopus21WoS19OpenAlex24İncele - MakaleYalnız künye2018Scopus SJRQ1Transmission line fault location using traveling wave frequencies and extreme learning machine
Akmaz, Düzgün; Mamiş, Mehmet Salih; Arkan, Müslüm; Tağluk, Mehmet Emin
In this research, a new approach was proposed for determining the fault location in transmission lines. Traveling wave frequencies and an extreme learning machine (ELM) were used to determine fault location. Transient signals in the time domain were transformed to the frequency domain using the fast Fourier transform (FFT) and the traveling wave frequencies were detected from the transient frequency spectrum. In order to detect the location of fault, traveling wave frequency was used initially to predict the fault location. The prediction of this fault location was tested for many different fault conditions and was found to be adversely affected by only the source inductance value. This is due to the negative effect of source inductance on wave velocity. Regression feature of ELM was used in order to improve the prediction of fault location and to minimize the negative effect of source inductance. For ELM regression training, values of the fault distance estimated from the traveling-wave frequencies and the source inductance values were used as ELM input data, and the actual distance values were used as ELM output data. After ELM regression training, ELM predicted a new fault location using the input data. The Alternative Transients Program (ATP/EMTP) was used to model J. Marti frequency dependent line model, and the MATLAB program was used to perform fault-detection algorithms. Simulation results show that the proposed method is very successful against many variables such as different fault resistances, source inductances, transmission line characteristics, transmission line lengths.
AtıfScopus104WoS74OpenAlex101İncele