TR-Dizin İndeksli Yayınlar Koleksiyonu
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Article Citation Count: 0Grammatical Complexity and Gesture Production of Younger and Older Adults;(Dilbilim Dernegi, 2023) Özer, Demet; Özer,D.; Göksun,T.Age-related effects are observed in both speech and gesture production. Older adults produce grammatically fewer complex sentences and use fewer iconic gestures than younger adults. This study investigated whether gesture use, especially iconic gesture production, was associated with the syntactic complexity within and across younger and older age groups. We elicited language samples from these groups, using a picture description task (N=60). Results suggested shorter and less complex speech for older than younger adults. Although the two age groups were similar in overall gesture frequency, older adults produced fewer iconic gestures. Overall gesture frequency, along with participants’ ages, negatively predicted grammatical complexity. However, iconic gesture frequency was not a significant predictor of complex syntax. We conclude that each gesture might carry a function in a coordinated multimodal system, which might, in turn, influence speech quality. Focusing on individual differences, rather than age groups, might unravel the nature of multimodal communication. © 2023 Dilbilim Derneği, Ankara.Article Citation Count: 0The Impact of Dynamic Shocks and Special Days on Time Series Data(Prof.Dr. İskender AKKURT, 2023) Bilge, Ayşe Hümeyra; Bilge,A.H.This paper includes an examination of a 4-year time series data on retail delivery demand generated by a logistics company based on the dates of creation. The periodic fluctuations observed in the data's normal structure are caused by the accumulation of demands over the weekend and their fulfillment at the beginning of the week. The aim of the study is modeling the response to unexpected changes in demand, which we refer to as "shocks," similar to the weekend effect. Special days, including single-day public holidays, religious holidays, and campaign periods in November, which represent specific periods, were also analyzed to interpret the patterns during these periods. The patterns created by single-day public holidays and religious holidays are significantly influenced by whether these days fall on a weekend or a weekday. By excluding weeks with special days from the overall data, the presence of shock effects in the remaining ordinary weeks was examined. During this period, the shock caused by the Covid-19 pandemic and adverse weather conditions was observed. The impact of the Covid-19 shock lasted longer compared to other shocks. When the increase in demand due to shocks exceeds the capacity of existing vehicles, the problem can be resolved by arranging daily rental vehicles from companies that provide vehicle allocations. Extracting the demand model for special days and unexpected shocks will ensure operational preparedness and prevent process delays. When ordinary weeks were examined, a monotonically decreasing trend from Monday to Sunday was observed based on the weekly average demand. The maximum demand was 58.3% on Monday, 17.2% on Tuesday, 15.9% on Wednesday, 7.3% on Thursday, and 1.3% on Friday. The provided graphs also demonstrate a significant increase in demands in early 2020 due to the widespread adoption of e-commerce as a result of the Covid-19 pandemic. © IJCESEN.Article Citation Count: 0Morphotectonic Evolution of Selduk Graben in Development Process of Western Anatolian Grabens(Tmmob Jeoloji Muhendisleri Odasi, 2023) Yilmaz, Yucel; Gurer, Omer Feyzi; Erbay, YucelThe Selduk Graben is the name given to the young graben developed in the western tip of the Kuduk Menderes graben. It was a part of the main graben until a strike-slip fault zone cut and displaced it to the southwest during late Quaternary. From this time onward, it has had a semi-independent evolution. In the horsts bordering the graben, metamorphic basement rocks crop out. The fill of the graben consists of alluvium from the Kucuk Menderes River. The Selduk Graben is an asymmetrical graben. The bordering southern horst is more prominent than the northern one, where the normal faults form clear fault steps. Morphologically, the less distinct northern faults may thus be interpreted as antithetic faults, which have developed on the hanging wall of the major listric normal faults of the southern horst. The graben and the bordering horst were cut and displaced by several young strike-slip faults, which have made clear imprints in the morphology, including linear ridges, offset streams, etc. In the development sequence of Western Anatolian grabens, the Selduk Graben is one of the latest ones. The Kuduk Menderes Graben was opened earlier, during the Quaternary. It was located on the horst separating the Buyuk Menderes and Gediz grabens in this period. The elevated horst then collapsed. The Selduk Graben was situated at the western end of the Kuduk Menderes Graben during this period. Later, with the development of NW trending left-lateral strike-slip faults, together with conjugated faults along the coastal region of western Anatolia, the Selcuk Graben was separated from the Kucuk Menderes Graben and has since evolved semi-independently.Article Citation Count: 1An analysis of social media content shared by right-wing extremist groups in the United States, the Great Britain and Australia(Istanbul Univ, Fac Communication, 2023) Baş, Özen; Bas, OzenThe extreme right movements have increasingly appeared on social media, especially on Twitter and Facebook, coinciding with the 2019 New Zealand attack, the 2019 El Paso incident, and Britain's exit from the European Union in 2020. This study examines the content and the form of extreme right-wing activities on Facebook and Twitter to promote their ideologies. A qualitative content analysis was conducted on posts shared by extreme-right groups on public Facebook and Twitter accounts in Great Britain, the United States and Australia. The sample spans from March 15, 2019 to February 5, 2020. The posts were coded according to a coding instrument developed based on the existing literature spreading extremist ideologies on social media. The coding instrument consisted of categories and subcategories such as 'the protection of western values', 'anti-LGBT activism', 'anti-feminism', 'anti-Islam', 'anti-immigrant sentiments', 'fostering the white race', and 'anti-elitist populism'. Findings suggest that the most prevalent extremist ideologies on Facebook and Twitter posts were 'anti-elitist populism' and 'the protection of western values'. Also, extremist groups heavily shared posts that combined texts and images to spread their ideologies on social media.Article Citation Count: 2Distribution of HLA epitope frequencies in Turkish population(Walter De Gruyter Gmbh, 2022) Oguz, Fatma Savran; Oguz, Suleyman Rustu; Ogret, Yeliz; Karadeniz, Tanju Sedat; Ciftci, Hayriye Senturk; Karatas, Sule; Kivanc, DemetObjectives The antibodies interact with the Human Leukocyte Antigen (HLA) antigens at specific epitopes. Epitopes are present on a single HLA or shared by multiple antigens. In this study, we aim to determine the frequency of prevalent epitopes common in the Turkish population. Methods Non-related 644 healthy volunteers were recruited, and The HLA-A, -B, -C, -DR -DQ's were typed using the Next Generation Sequencing. The provisional and confirmed epitopes were identified using the HLA Epitope Registry databases, HLA Epitopia Maps and Immucor Epitope databases dated 07.02.2018. Epitope frequencies were calculated by counting the shared epitopes in the total number of shared HLA Class epitopes in our sample database. Results Class I HLA's had 298 epitopes that repeated a total of 158,117 times with frequencies ranging between 0.0006 and 2.03%, and the most frequent epitope was 170RY found on 119 different alleles. Class II HLA's had 193 epitopes that repeated a total of 93,082 times with frequencies ranging between 0.002 and 1.36%, and the most frequent epitope was 108P found on 42 different alleles. Conclusions Our findings summarize both the provisional, and confirmed epitope frequencies in the Turkish population and may help clinicians and immunogeneticists develop a better understanding of HLA epitope mismatches.Article Citation Count: 0Turkey's Green Imagination: The Spatiality of the Low-Carbon Energy Transition within the EU Green Deal(Uluslararasi Iliskiler Konseyi Dernegi, 2023) Özel, Soli; Gormus, Evrim; Ozel, SoliThis article asks the extent to which the EU Green Deal influences the EU periphery today and builds on the spatial conditions of multiple, co-existing decarbonization pathways within the EU Green Deal while problematizing the 'green imagination' of Turkey as an immediate neighbour and a candidate country for membership in the EU. As such, it uncovers that the current low-carbon transition process in Turkey is prone to be shaped by the highly politicized energy market in an authoritarian neoliberal structure on the one hand, and Turkey's priorities in energy issues and hard security on the other. The findings further reveal that Turkey's efforts to use more domestic energy resources to meet its consumption needs might also interfere with its efforts and obligations to decarbonize its energy sector. The scrutiny into the low-carbon energy transition in Turkey accordingl contributes further insight into the consequences of the spatiality of such transitions in an authoritarian neoliberal context, and what other alternative policies can be imagined and put in practice. Thus, more empirical research is warranted to reveal the spatiality of the low-carbon energy transition across various geographical settings. At the same time, the article argues that both the EU and its partners such as Turkey should be weary of creating green utopias when redesigning their green-energy space since utopias tout court may not always stimulate large-scale change in a revolutionary way in terms of sustainability, feasibility, good practice, and inclusiveness in decision-making processes.Article Citation Count: 0Feeling Imagined Spaces: Emotional Geographies in the EU-Turkey Relations(Uluslararasi Iliskiler Konseyi Dernegi, 2023) Karamik, Irem; Ermihan, ErmanGeographies and borders have become often-debated concepts, especially in the view of the increasing impact of globalization and regional integration processes. In such cases, borders are attributed certain imagined meanings and more so, they are associated with feelings. Considering such dynamics, EU-Turkey relations can be considered a good example of how borders, emotions and spatial dimensions interact. However, not much attention has been given to the emotional facets of spatial relations. By utilizing the concept of hot places, this study tries to fill this void. We separate EU-Turkey relations into three phases: the Cold War, post-Cold War, and the peak of migration politics, driven by the Syrian Civil War. We argue that there is a specific hot place for each of these periods: Kreuzberg, Berlin for the period between 1959 and 1989, Cyprus for the post-Cold War period, and the Syrian conflict for the last period. Thus, this paper aims at suggesting a novel approach to the study of emotions, spatiality, and EU-Turkey relations.Article Citation Count: 1COVID-19 modeling based on real geographic and population data(Tubitak Scientific & Technological Research Council Turkey, 2023) Baysazan, Emir; Berker, A. Nihat; Mandal, Hasan; Kaygusuz, HakanBackground/aim: Intercity travel is one of the most important parameters for combating a pandemic. The ongoing COVID-19 pandemic has resulted in different computational studies involving intercity connections. In this study, the effects of intercity connections during an epidemic such as COVID-19 are evaluated using a new network model. Materials and methods: This model considers the actual geographic neighborhood and population density data. This new model is applied to actual Turkish data by means of provincial connections and populations. A Monte Carlo algorithm with a hybrid lattice model is applied to a lattice with 8802 data points. Results: Around Monte Carlo step 70, the number of active cases in Turkiye reaches up to 8.0% of the total population, which is followed by a second wave at around Monte Carlo step 100. The number of active cases vanishes around Monte Carlo step 160. Starting with Istanbul, the epidemic quickly expands between steps 60 and 100. Simulation results fit the actual mortality data in Turkiye. Conclusion: This model is quantitatively very efficient in modeling real-world COVID-19 epidemic data based on populations and geographical intercity connections, by means of estimating the number of deaths, disease spread, and epidemic termination.Article Citation Count: 23D self-assemble formation of molybdenum disulfide (MoS2)-doped polyacrylamide (PAAm) composite hydrogels(Tubitak Scientific & Technological Research Council Turkey, 2022) Durmaz, Sumeyye; Yildiz, Ekrem; Uysal, Bengu Ozugur; Pekcan, OnderPolyacrylamide (PAAm), a renowned member of the hydrogel class, has many uses throughout a wide range of industrial processes, including water absorbed diapers, contact lenses, wastewater treatment, biomedical applications such as drug delivery vehicles and tissue engineering because of its physical stability, durability, flexibility easier shaping, and so on. PAAm also provides new functionalities after the incorporation of inorganic structures such as molybdenum disulfide (MoS2). During the copolymerization process, the transmittance of all samples reduced significantly after a particular time, referred to as the gel point. Microgels form a tree above the gel point as projected by Flory-Stockmayer classical theory. Because of microgels positioned at the junction points of the Cayley tree, the addition of MoS2 results in strong intramolecular crosslinking and looser composites. Moreover, fractal geometry provides a quantitative measure of randomness and thus permits characterization of random systems such as polymers. Fractal dimension of these polymer composites is calculated from power-law-dependent scattered intensity. It was also confirmed that a hydrogel rapidly formed within a few seconds, indicating a 3D network formation inside the gel. These materials may have a great potential for application in wearable and implantable electronics due to this highly desired 3D self-assemble feature.Article Citation Count: 0Modelling of C-terminal tail of human STING and its interaction with tank-binding kinase 1(Tubitak Scientific & Technical Research Council Turkey, 2022) Eşsiz, Şebnem; Audu-Bida, Hajara; Essiz, SebnemStimulator of interferon genes (STING) plays a significant role in a cell's intracellular defense against pathogens or self DNA by inducing inflammation or apoptosis through a pathway known as cGAS-cGAMP-STING. STING uses one of its domains, the C-terminal tail (CTT) to recruit the members of the pathway. However, the structure of this domain has not been solved experimentally. STING conformation is open and more flexible when inactive. When STING gets activated by cGAMP, its conformation changes to a closed state covered by 4 beta-sheets over the binding site. This conformational change leads to its binding to Tank-binding kinase 1 (TBK1). TBK1 then phosphorylates STING aiding its entry to the cell's nucleus. In this study, we focused on the loop modeling of the CTT domain in both the active and inactive STING conformations. After the modeling step, the active and inactive STING structures were docked to one of the cGAS-cGAMP-STING pathway members, TBK1, to observe the differences of binding modes. CTT loop stayed higher in the active structure, while all the best-scored models, active or inactive, ended up around the same position with respect to TBK1. However, when the STING poses are compared with the cryo-EM image of the complex structure, the models in the active structure chain B displayed closer results to the complex structure.Article Citation Count: 3The effect of weekend curfews on epidemics: a Monte Carlo simulation(Tubitak Scientific & Technical Research Council Turkey, 2021) Kaygusuz, Hakan; Berker, A. NihatThe ongoing COVID-19 pandemic is being responded with various methods, applying vaccines, experimental treatment options, total lockdowns or partial curfews. Weekend curfews are among the methods for reducing the number of infected persons, and this method is practically applied in some countries such as Turkey. In this study, the effect of weekend curfews on reducing the spread of a contagious disease, such as COVID-19, is modeled using a Monte Carlo algorithm with a hybrid lattice model. In the simulation setup, a fictional country with three towns and 26,610 citizens were used as a model. Results indicate that applying a weekend curfew reduces the ratio of ill cases from 0.23 to 0.15. The results also show that applying personal precautions such as social distancing is important for reducing the number of cases and deaths. If the probability of disease spread can be reduced to 0.1, in that case, the death ratio can be minimized down to 0.Article Citation Count: 0Technological Innovations and Firm Internationalisation(Sosyoekonomi Soc, 2022) Ozturk-Danisman, GamzeThis paper explores the relevance of technological innovations for the internationalisation of manufacturing firms. It differentiates between two technological innovations: eco-innovations and generic-technological innovations (i. e., intelligent manufacturing). By pooling the Flash Eurobarometer-415 and -433 surveys, we use a broad firm-level sample of 4954 European and nonEuropean (the US and Switzerland) manufacturing firms. Appling the Heckman selection model, the findings indicate that eco-innovations positively affect the decision of the firms to internationalise whilst showing no significant impact on the level of international operations. On the other hand, generic-technological innovations positively affect both the decision and the level of global operations.Article Citation Count: 2The Impasse of International Law on Climate-Induced Migration: Recent Developments and the United Nation's January 2020 Decision on Climate Refugees(Seta Foundation, 2021) Gunes, Burak; Celenk, BenguThis paper aims to lay out the challenges and potentially fatal conflicts inherent in the emerging attempts to respect state sovereignty while crafting progressive and truly responsive sets of approaches to a sui generis global problem like the climate crisis. It examines general approaches and practices on climate refugees within the scope of a critical legal framework, taking as an example the 'Ioane Teitiota' case that attracted public attention as an international issue starting in 2013. In addition, we will examine from a legal viewpoint and with an eye to future consequences, the January 2020 United Nations' historical decision on climate refugees. We adopt Martti Koskennimi's terms, ascending and descending justifications, to show the oscillation that the legal mind experiences in between order and will. In this paper, we will claim that the legal mind fights a battle that eventually ends up with a deadlock due to the very structure of modern law.Article Citation Count: 1In silico investigation of wound healing potential of some compounds in tubers of Asphodelus species with GSK3-? protein(Marmara Univ, 2021) Aksoy, Halil; Sekerler, Turgut; Mert, Naz MinaWound healing is a process that involves biochemical processes such as inflammation and cell proliferation and is controlled by many proteins. It is known that one of the most effective factors in this process is the inhibition of GSK3-beta protein. In current study, in silico wound healing activity of the some compounds found in the tubers of Asphodelus species used as a wound healing in traditional medicine were investigated. For this purpose, the interactions between the compounds and GSK3-beta protein were studied in silico. As a result of the study, it has been determined that and stigmasterol, beta-sitosterol and emodin molecules are effective.Article Citation Count: 0Sigorta Ettirenin Sözleşme Öncesi Beyan Yükümlülüğünün İhlaline İlişkin Türk Ticaret Kanunu Hükümlerinin Alman Sigorta Sözleşmeleri Kanunu’nda ve Avrupa Sigorta Sözleşmesi Hukuku Prensipleri’nde Yer Alan Düzenlemeler Açısından Değerlendirilmesi(Istanbul Univ, Fac Law, 2021) Acikel, Aslihan ErbasSigorta sözleşmesine ilişkin müzakerelerin başladığı andan itibaren oldukça karmaşık hak ve yükümlülüklerden teşekkül eden bir borç ilişkisi doğmaktadır. Karşılıklı güven ilişkisine dayanan ve dürüstlük kuralının özel bir önemi haiz olduğu bu borç ilişkisinde, tarafların birbirlerini aydınlatma yükümlülüğü sözleşmenin kurulması safhasında o kadar esaslı bir role sahiptir ki kanun koyucu her iki taraf için de bu yükümlülüğün ifasını özel düzenlemelere tabi tutmuştur. Nitekim 6102 sayılı Türk Ticaret Kanunu’nda sigortacının aydınlatma yükümlülüğüne yer verilmiş ve sigorta ettirenin sözleşme öncesi beyan yükümlülüğü çok detaylı bir şekilde düzenlenmiştir. Bu kapsamda Kanun’da sigorta ettirenin sözleşme öncesi beyan yükümlülüğünü nasıl ifa edeceği ve ifa etmemesi ya da eksik yahut yanlış ifa etmesi halinde doğacak sonuçlar belirtilmiştir. Ancak ilgili Kanun hükümleri pek çok yönden belirsizlik taşımakta, bu nedenle uygulamada ve öğretide çok farklı şekilde yorumlanmaktadır. Sigorta genel şartlarının çoğunun 6102 sayılı Türk Ticaret Kanunu’nun yürürlüğe girmesinden önce kaleme alındığı dikkate alındığında, konuya ilişkin detaylı incelemelerin önemi ortaya çıkmaktadır. Bu çalışmanın amacı, sigorta ettirenin sözleşme öncesi beyan yükümlülüğünü ihlal etmesi halinde sigortacının sahip olduğu hakları Avrupa Birliği Sigorta Sözleşmeleri Prensipleri ve mehaz kanun olan Alman Sigorta Sözleşmesi Kanunu ile karşılaştırmalı olarak ele alarak incelemektir. Bu çerçevede beyan yükümlülüğünün ihlal edilmesi halinde sigortacının TTK m. 1439’da düzenlenen haklarının, beyan yükümlülüğünün ihlal edilmesinden önce veya sonra öğrenilmesine göre bir ayrıma tabi tutulup tutulmadığı, cayma hakkının niteliği ve bu hakka ilişkin olarak ortaya çıkan sorunlar, rizikonun gerçekleşmesi halinde uygulanacak hükümler yönünden sigortacının kusurunun belirleyici olmasının yarattığı güçlükler ve sigorta ettirenin beyan yükümlülüğü ile sigortacının aydınlatma yükümlülüğü arasında nasıl bir ilişki kurulması gerektiği üzerinde durulacaktır. Ayrıca çalışma sırasında elde edilen bulgular ışığında konuya ilişkin yargı kararları irdelenecektir.Article Citation Count: 0Determination of Law Applicable to the Foster Family from a Private International Law Perspective(Istanbul Univ, 2022) Ömeroğlu, EkinIn the protection of children who cannot be brought up in their biological family, the institution of foster family, which is the placement of the child with an unrelated family as alternative care, has been widely accepted. Examining the national and international regulations regarding foster families illustrates the legal concept that the foster family is the person or persons who temporarily undertake the care of a child without establishing a paternity relationship with the child and without having the right of custody over the child. If the child who is to be protected is a foreigner, or if a dispute arising from the foster family relationship established between the child and the foster family in a foreign country comes before the Turkish courts, issues related to the law applicable to the foster family in private international law will arise. As a matter of fact, there is at present no conflict of laws rule regarding the foster family in the Turkish Private International Law Act (TPILA). However, in the Hague Convention of 1996, to which Turkey is a party, placement of the child in a foster family was regulated among the various measures aimed at protecting the person and property of the child. According to Article 15 of the Hague Convention, the authorities of the Contracting States must apply their own law. On the other hand, certain issues, such as how the foster family should be qualified and the name and surname of the child are considered outside the scope of the Convention. In our study, the nature of the foster family will be briefly examined through the national and international regulations regarding the institution of the foster family. After examining the applicable law, an answer will be sought to the question of which article will be applicable in determining the law to be applied to the foster family in terms of TPILA.Article Citation Count: 1Possible Ratification of the Hague Convention by Turkey and Its Effects to the Recognition and Enforcement of Foreign Judgments(Istanbul Univ, 2020) Efecinar, Ceyda SuralThe recognition and enforcement of foreign court judgments in Turkey have been regulated by the International Private and Procedural Law Act, which was entered into force on 4 December 2007 (hereinafter referred to as PILA) in Articles 50-59. According to the Turkish Constitution Article 90/V, international conventions shall have the same effect as national laws. In Article 1/2 PILA, it is emphasized that the provisions of international conventions prevail over the provisions of PILA. Therefore, if Turkey ratified the Hague Convention on the Recognition and Enforcement of Foreign Judgments in Civil or Commercial Matters (hereinafter referred to as the Convention), its provisions would prevail over PILA in cases within the scope of the Convention. In this study, the provisions of the Convention and PILA are compared in order to determine to what extent the recognition or enforcement of foreign court decisions would be facilitated in Turkey in the event that Turkey ratified the Convention. It is hypothetically accepted that not only Turkey, but also all other South East European countries mentioned in the study would ratify the Convention.Article Citation Count: 0The Choice of Law in the Infringement of Intellectual Property Rights by Soft Law Provisions(Istanbul Univ, 2020) Ömeroğlu, EkinThis study deals with the party autonomy principle as a connecting factor in the infringement of intellectual property rights in the light of soft law provisions. The territoriality principle and the lex loci protectionis rule govern as the main doctrines of law applicable to intellectual property infringement disputes. However, several academic projects from all over the world (the Principles by the American Law Institute, the Principles by the European Max Planck Group on Conflict of Laws in Intellectual Property, the Japanese Transparency Proposal, the Joint Principles drafted by members of the Private International Law Association of Korea, Japanese Waseda University Global COE Project and the Draft Guidelines on Intellectual Property in Private International Law of The International Law Association Intellectual Property and Private International Law Committee) suggested the party autonomy principle for the infringement of intellectual property rights in contrast to Article 8(3) of the Rome II Regulation. All these principles have no legally binding effect, but they are a set of principles that could be used both by international and national legislative bodies and courts. Moreover, the party autonomy principle in intellectual property infringement cases has been accepted by Turkish Private International Law Act (PILA), Swiss PILA and Chinese PILA. The purpose of this study is to analyse both soft law and national law provisions comparatively. Although the common aspect of the legal principles is to accept the will of the party, all of the provisions differ in several aspects. This study attempts to analyse and evaluate the suggested developments of the choice of law for intellectual property infringement cases.Article Citation Count: 0Comparative classification performances of filter model feature selection algorithms in EEG based brain computer interface system(Gazi Univ, Fac Engineering Architecture, 2023) Ballı, Tuğçe; Balli, Tugce; Yetkin, E. FatihBrain-computer interface (BCI) systems enable individuals to use a computer or assistive technologies such as a neuroprosthetic arm by translating their brain electrical activity into control commands. In this study, the use of filter-based feature selection methods for design of BCI systems is investigated. EEG recordings obtained from a BCI system designed for the control of a neuroprosthetic device are analyzed. Two feature sets were created; the first set was band power features from six main frequency bands (delta (1.0-4 Hz), theta (4-8 Hz), alpha (8-12 Hz), beta (12-25 Hz), high-beta (25-30Hz) and gamma (30-50 Hz)) and the second set was band power features from ten frequency sub-bands (delta (1-4 Hz), theta (4-8 Hz), alpha1 (8-10 Hz), alpha2 (10-12 Hz), beta1 (12-15 Hz), beta2 (15-18 Hz), beta3 (18-25 Hz), gamma1 (30-35 Hz), gamma2 (35-40 Hz), gamma3 (40-50 Hz)). Ten filter-based feature selection methods are investigated along with linear discriminant analysis, random forests, decision tree and support vector machines algorithms. The results indicate that feature selection methods leads to a higher classification accuracy and eigen value centrality (Ecfs) and infinite feature selection (Inffs) methods have consistently provided higher accuracy rates as compared to rest of the feature selection methods.Article Citation Count: 0Assesment of soft error sensitivity of power flow analysis(Gazi Univ, Fac Engineering Architecture, 2023) Yetkin, Emrullah FatihToday's power systems are large and interconnected to each other with many buses, lines, loads, and generators. Even the solution of a single snapshot of the system for specific conditions requires the solution of systems of equations with large sizes. Thus, to obtain the results in a reasonable time for large problems like electrical power flow simulations, modern large computational environments should be employed. However, because of the increasing number of components in the modern computational environment, the possibility of soft errors also increases. Soft errors can be defined as failures arising from several fluctuations due to x-rays, cosmic particle effects, etc. These types of errors usually appear at any time of computation as a bit-flip in any floating-point operations. In this paper, we will investigate the soft-error effects on large-scale power flow simulations. Generally, power flow calculations are performed by using Newton Raphson Method. The system is modeled by nonlinear equations and the solution process requires a linear solver is employed to take the inverse of the Jacobian matrix at each iteration. In this study, the soft-error sensitivity of the numerical methods used in load flow was examined, and the problems that may be encountered were revealed.
