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Grey Wolf Optimization Algorithm-Based Hybrid Energy Storage System Controller Design for Electric Vehicles
Get PDFElectric vehicles (EVs) present several benefits over conventional internal combustion engine vehicles. They emit zero tailpipe emissions, thereby aiding in the reduction of air pollution and the mitigation of climate change. In addition, EVs tend to have lower operating expenses due to cheaper electricity compared to gasoline or diesel. They also provide a smoother and quieter driving experience. Furthermore, EVs help promote energy independence by decreasing dependence on fossil fuels. Overall, they represent a cleaner, more sustainable transportation option for the future. However, EVs encounter some important constraints such as inefficiency of energy consumption management, charging time, and battery range problems. To address these challenges, hybrid energy storage systems (HESSs) offer a solution by combining different energy storage technologies. These systems can improve energy efficiency, reduce charging times, and extend the driving range of EVs, making them more practical and appealing to consumers. In this study, a new controller design is realized using the grey wolf optimization (GWO) algorithm, and the energy consumption demands of EV HESS are optimized with the designed system. The performance results of the proposed system are compared with other energy management systems in the literature, and it is concluded from this study that the proposed system is much superior to previous methods and typically reduces energy consumption by 12.88%
Structural, morphological and dielectrical properties of acorn cupule extract doped hydrogels
Get PDFAcorn cupule extract doped different hydrogels were prepared to examine their structural morphological and dielectrical properties at room temperature. Structural, morphological and dielectrical parameters for all samples were found by using the XRD, SEM, EDX and impedance spectroscopy. The conductivity, capacitive effect and electronic circuit properties for acorn cupule extract doped hydrogels have not studied before in the literature. Therefore, the complex impedance, capacitance, phase angles, dielectric constant, tangent factor, electric modulus and frequency evolution of ionic conductivity (s -parameters) were successfully analyzed in detail using impedance spectroscopy in the frequency range of 10 2 to 10 7 rad/s at RT. Furthermore, the Cole -Cole plots of the dielectric constant adapted to the Smith chart and general RC equivalent circuit was showed in detail. It was determined that the dielectric effect was at its highest values in the frequency range of 10 2 to 10 5 rad/s.Scientific Research Projects Coordination Unit of Ni.gdeOmer Halisdemir University [FMT 2022/18-LUTEP]This work was financially supported by Scientific Research Projects Coordination Unit of Ni.gdeOmer Halisdemir University with Project No.: FMT 2022/18-LUTE
Delay - Dependent Stability Analysis of Load Frequency Control Systems Considering Wind Power Participation
Get PDF6th Global Power, Energy and Communication Conference (GPECOM) -- JUN 04-07, 2024 -- Budapest, HUNGARYThis study presents the delay-dependent stability analysis of the load frequency control (LFC) system enhanced by dynamic participation of wind turbine (WT). The development of the energy conversion technologies in the variable speed WTs provides the inertia support based on rotational kinetic energy and primary frequency reserve for the grid. However, the extensive utilization of communication networks to exchange data for managing and control of generation units causes the network-induced delays which negatively affect the frequency stability of the system. In addition, the LFC-WT systems face with the parametric uncertainty issue due to increasing the complexity of the LFC system and uncertainties in the WT. In this regards, the study aims to obtain the stability delay margins of the LFC system with WT deloading operation by time-domain simulation and Kharitonov theorem. The obtained stability delay margins are verified by Quasi-Polynomial mapping Root (QPmR) finder algorithm. The obtained findings show that the integration of WT including inertia control and deloading control loops into LFC system improves the delay margins and robustness of the system.IEEEScientific and Technological Research Council of Turkey (TUBITAK) [123E451]; TUBITAKThis work was supported by The Scientific and Technological Research Council of Turkey (TUBITAK) under grant number 123E451. The authors thank to TUBITAK for their supports
Hileli Finansal Raporlama ve Finansal Başarısızlık İlişkisinin Muhasebe Bilgi Kalitesi Açısından Değerlendirilmesi
Get PDFİşletmeler hakkında bilgi edinilen en önemli kaynaklar, onlara ait finansal tablolardır. Söz konusu tabloların yatırımcılar, ortaklar, borç ve kredi verenler, devlet ve toplum gibi işletme ile ilgilenen taraflara alacakları kararlarda faydalı olabilmeleri, tablolarda yer alan finansal bilgilerin bu kullanıcıların ihtiyacına uygun olmasına ve içerisindeki bilgilerin gerçeğe uygun olarak sunulmasına bağlıdır. Çalışmanın amacı, muhasebe bilgi kalitesinin bilginin ihtiyaca uygunluğu ve gerçeğe uygun sunumu açısından değerlendirilmesidir. Ayrıca gerçeğe uygun sunum açısından hileli finansal raporlama olasılığı, ihtiyaca uygunluk açısından ise finansal başarısızlık olasılığı değerlendirilerek, muhasebe bilgi kalitesi bağlamında finansal başarısızlık ile hileli finansal raporlama ilişkisinin tespit edilmesi amaçlanmıştır. Bu amaçla Borsa İstanbul (BİST) Sınai endeksinde faaliyet gösteren işletmelerin 2019 yılı verileri kullanılarak yapılan analizde finansal başarısızlık tahmininde Altman Z” Skor modeli, hileli finansal raporlama olasılığının tespit edilmesinde ise Beneish modeli kullanılmıştır. Finansal başarısızlığın hileli finansal raporlamayla ilişkisinin tespitinde ise çapraz tablo analizi yöntemi kullanılmıştır. Elde edilen sonuçlara göre, finansal bilginin ihtiyaca uygun olarak sunulması finansal başarısızlığın tutarlı sınıflandırılma oranını artırmakta, gerçeğe uygun olarak sunulması ise işletme yöneticilerini hileli finansal raporlama yapmaktan uzaklaştırmaktadır. Ayrıca finansal açıdan başarısız işletmelerin bu durumu gizlemek amacıyla çeşitli hileli finansal raporlama yöntemlerine başvurdukları ile ilgili anlamlı ilişki de tespit edilmiştir
Seyyid Mehmed Ali Mesnevî-yi Ma'nevî (42b- 80b) (Analysis-text-dictionary-facsimile)
Get PDFSosyal Bilimler Enstitüsü, Türk Dili ve Edebiyatı Ana Bilim Dalı0
Developing Reading Fluency: An Action Research
Get PDFIn this study, it was aimed to improve the reading fluency performance of a primary school 3rd grade student who has reading difficulties. This study was carried out in the spring semester of 2021 in the form of action research, one of the qualitative research methods. First of all, in order to determine the student's current reading performance, texts at his/her own grade level were read and the student's actual reading level and reading fluency problems were determined. In order to determine the reading fluency levels of the students, the Prosodic Reading Scale was used together with the the Informal Reading Inventory. After determining the current reading performance of the student, a 7-week action plan was prepared and implemented, with two hours of lessons per week (three hours in the last week) and 15 lesson hours in total. Within the scope of the action plan, reading texts at grade levels appropriate to the current situation of the student were used. In order to improve the student's reading fluency performance, the fluent reading strategies specified in the related literature were examined and in this study, repeated reading, paired reading and word drill techniques were used. In addition, the parents of the student were interviewed at the end of the study and their opinions about their child's performance were obtained. As a result, it was seen that the strategies and techniques used had a positive effect on every component of reading fluency (accuracy, speed, prosody)
Geology and geothermal energy potential of Erzin ( Tatay ) region
Get PDFFen Bilimleri Enstitüsü, Jeoloji Mühendisliği Ana Bilim DalıBu çalışmada Başlamış travertenlerinin gelişim mekanizmalarının ortaya konulması amaçlanmıştır. Çalışma alanı Hatay'ın Erzin ilçesine bağlı Başlamış Köyü'nde bulunmaktadır. Çalışma alanının temelini Kretase yaşlı Kızıldağ Ofiyoliti oluşturmakta ve bunun üzerine uyumsuz olarak Kuvaterner yaşlı alüvyon ile travertenler gelmektedir. Jeotermal sistemin rezervuar kayası ise çalışma alanı doğusunda ofiyolitli seri altında gözlenen Jura yaşlı kireçtaşlarıdır. Yüzeyde gözlemlenen Başlamış travertenlerinin yaşı alanda yapılan önceki çalışmalarda Kuvaterner olarak verilmektedir.İnceleme alanındaki travertenlerin merkezi çatlakları ve kırık sistemlerinin analizi, bu yapıların farklı ve dönemsel gerilim alanları içerisinde oluştuğunu ortaya koymaktadır. İnceleme alanı içerisinde yer alan Başlamış traverteni sol yönlü doğrultu atımlı bir fay olan Ölü Deniz Fay sisteminin etkisi altındadır. Arazi çalışmaları sırasında derlenen kayaç örneklerinden tüm kayaç XRD, XRF ve SEM analizleri yapılmıştır. Tüm kayaç XRD sonuçlarına göre ana kayaçlar kalsit ve aragonit mineralinden oluşmakta, XRF sonuçlarına göre kimyasal içerikleri % 95,5 oranında kalsiyum (Ca) elementinden oluşmaktadır.In this study, it is aimed to reveal the development mechanisms of the Başlamış travertines. The study area is located in Başlamış village of Erzin district of Hatay. The bedrock of the study area is the Cretaceous Kızıldağ ophiolite and Quaternary alluvium and travertines overlying with discordance. The reservoir rock of the geothermal system is the Jurassic limestones observed under the ophiolitic sequence to the east of the study area. The age of the Başlamış travertines is given as Quaternary in previous studies made on the field. Analysis of the central fractures and fracture systems of the investigated travertines reveals that these structures occur within different periodic stress areas.The Başlamış travertines located in the study area is under the influence of the Dead Sea Fault system, which is a left-latheral strike-slip fault. Whole rock XRD, XRF and SEM analyzes were carried out from all rock samples collected during the field studies. According to whole rock XRD results, the main rocks are composed of calcite and aragonite minerals and according to XRF results, their chemical content is composed of calcium (Ca) element in 95,5 %
Bioinformatic analysis of neuropeptide related genes in patients diagnosed with invasive breast carcinoma
Get PDFPurpose: Neuropeptide receptors are expressed in many malignancies. Effectors involved in the action mechanisms of HCRTR1, HCRTR2, NPY4R (PPYR1) may be related to breast cancer (BC). Genes encoding these receptors and PPY and PTPN11 genes were aimed to examine via bioinformatics tools in the BRCA cohort. To our knowledge, this is the first study in which these receptor genes and PP, which have not found much research in BC, are examined together with PTPN11 and analyzed comprehensively in large patient cohorts from public databases. Methods: cBioPortal was used for gene alteration analyses, GeneMania for association analyses with other genes, Kaplan-Meier Plotter for Overall Survival (OS) and Relapse Free Survival (RFS) analyses, UALCAN for methylation analyses, TIMER2.0 for expression analyses, The Human Protein Atlas database for expression validations, TIMER for immune infiltration analyses, WEKA 3.8.6 for diagnostic classification performances of the genes based on Random Forest Classifier and Enrichr-KG for Gene Ontology (GO) Biological Process (BP) and KEGG analysis. Results: 19 (1.9 %) nucleotide changes were found in 996 cases. Missense mutation is most common. Decreased expression levels of the HCRTR1 gene were associated with shorter OS and RFS, but decreased expression levels of the PTPN11 gene were associated with longer OS and RFS. Decreased expression levels NPY4R (PPYR1) gene were associated with shorter RFS. Increased expression levels of HCRTR2 and PPY genes were associated with longer RFS. HCRTR1 and NPY4R (PPYR1) genes were statistically hypermethylated; conversely HCRTR2 and PPY genes were hypomethylated. There was no significant change in PTPN11 gene promoter methylation level. HCRTR1, NPY4R (PPYR1) and PTPN11 gene expressions were downregulated; conversely, HCRTR2 and PPY gene expressions upregulated. Weak correlations were observed between NPY4R (PPYR1) gene expression and CD4+ T Cell, Neutrophil, Dendritic Cell and between PTPN11 gene expression and CD8+ T Cell, Macrophage, Neutrophil, Dendritic Cell infiltrations. Area under the receiver operating characteristics curve values of the 10-fold cross-validation and by splitting the dataset in a ratio of 80:20 models were 0.930 and 0.963 respectively. HCRTR2 and HCRTR1 belong to regulation of cytosolic calcium ion concentration, cellular calcium ion homeostasis GO BPs. Conclusion: In BC patients, increases in HCRTR2 and PPY gene expressions could be considered as positive prognostic factors. Decreases in HCRTR1 and NPY4R (PPYR1) gene expressions could be considered as negative prognostic factors. Decreased expression of PTPN11 gene may have a positive prognostic factor. Changes in existing genes are likely to be both a biomarker and therapeutic target for BC. However, experimental and clinical studies are needed to elucidate the mechanisms underlying these neuropeptide receptors in terms of breast carcinogenesis. © 2024 Elsevier Lt
Modernleşme Sürecinde Türk Hukukunda Değişen Dinamikler
Get PDF17. yüzyılda Batı düşün dünyasında etkisini gösteren Aydınlanma hareketi neticesinde, modernizm akımı Batı medeniyetlerinde etkili olmuş, bunun neticesinde gelişen kapitalist toplum nezdinde hukuki pozitivizm kuramı sahneye çıkmıştır. Modern dünyada istikrar ve belirliliği sağlamak, bireylerin anomalik davranış ve tepkilerden arınarak herkesin kendisine verilen görevi bir saatin dişli çarkları gibi yapmasına dayanan bu iş bölümünün kusursuz işlemesi açısından klasik hukuki pozitivizm düşüncesi ve bu düşünceden doğan kazuistik mantıkla yapılan kodifikasyonlar ile metafiziksel kavramların hukuk dışına itilmesi dönemin kendine özgü bakış açılarını oluşturmaktadır. Batı dünyasında ortaya çıkan bu anlayış, Doğu dünyasında da 17. ve 18. yüzyıllarda hemen etkisini göstermiştir. Bu minvalde Osmanlı Devleti’nde Batıcılık akımı hız kazanmış, hukuk alanında da değişim başlamıştır. Özellikle Osmanlı Devleti’nin çöküşü ve Cumhuriyet dönemiyle birlikte, Türk hukuku büyük ölçüde geleneksel anlayıştan uzaklaşarak modern pozitivist hukuk anlayışının etkisi altına girmiştir. Tanzimat dönemi ve ardından gelen Meşrutiyet dönemi, hukuk alanında önemli reformların yaşandığı zamanlardır. Cumhuriyet dönemiyle birlikte kanunlaştırma hareketleri hız kazanarak, geleneksellikten kopuş tam olarak gerçekleşmiştir. Bu çalışmada öncelikle Batıcılık akımının etkisi neticesinde gelenekselden modernizme geçişte Osmanlı hukuk sisteminde değişen zihniyet ve sonuçları çağın gelişmeleri ve hukuka bakışı doğrultusunda irdelenecektir. Sonrasında da Cumhuriyet döneminde geleneksellikten kopuş neticesinde ortaya konulan modern hukuk sisteminin esasları tartışılacaktır
Tectonic geomorphology and deep-seated gravitational slope deformations (DSGSDs) in the Acigol Graben, Turkiye
Get PDFThe Sogut Mountains is a fault-bounded carbonate range situated between the active Acigol and Akgol grabens in southwestern Turkiye. The southwestern sector of the Acigol Graben floor displays an array of faults that have produced peculiar intra-basin half-grabens with local lakes and drainages. The conspicuous geomorphic expression of the intra-basin faults and depressions in this sector of the basin is attributed to low sedimentation rate (i.e., starved basin) related to very limited runoff and sediment supply from the southwestern carbonate margin of the basin, dominated by subsurface drainage in a carbonate bedrock strongly affected by gravitational deformation and karstification. Detailed mapping reveals the presence of large landslides and extensive DSGSDs in the mountain fronts flanking the Sogut Mountains, showing ridge-top depression, uphill-facing scarps, highrelief downhill-facing scarps, and toe bulges. Cartographic relationships provide insights into the development and evolution of the deformations in the slopes that experience continuous tectonic rejuvenation and debuttressing. DSGSDs and large landslides take advantage of secondary synthetic tectonic faults, in which gravitational and tectonic displacement are superposed. The transformation of DSGSDs into large to giant short runout landslides (up to ca. 3.5 Gm(3)) occurs mainly on laterally unconfined slopes associated with bends and stepovers in the basin-bounding faults. Seismicity is likely the main triggering factor controlling the kinematics of the gravitational deformations and landslides. Cartographic evidence indicate downslope propagation of the gravitational deformation (uphill-facing-scarps and associated troughs) in the tectonically growing slopes. Additionally, preferential development of solution sinkholes is observed in gravitationally distorted slopes with impeded surface drainage.Ankara University Scientific Research Project [21L0649002]; Spanish Government (Ministerio de Ciencia e Innovacion) [PID2021-123189NB-I00]This work is financially supported by Ankara University Scientific Research Project (21L0649002) . The first author is thankful to Harun Tuncel for his assistance during the field campaigns, to Cengiz Y & imath;ld & imath;r & imath;m for his suggestions during the study, and to Eren Sahiner for analyzing OSL data. The work by FG has been supported by the project DIAPERNO (PID2021-123189NB-I00) of the Spanish Government (Ministerio de Ciencia e Innovacion)