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Aerial Swarms: Recent Applications and Challenges
(Springer, 2021) Mohamed Abdelkader; Samet Güler; AGÜ, Mühendislik Fakültesi, Elektrik - Elektronik Mühendisliği Bölümü; Güler, Samet; 01. Abdullah Gül University; 02. Mühendislik Fakültesi; 02.05. Elektrik & Elektronik Mühendisliği
Purpose of review: Currently, there is a large body of research on multi-agent systems addressing their different system theoretic aspects. Aerial swarms as one type of multi-agent robotic systems have recently gained huge interest due to their potential applications. However, aerial robot groups are complex multi-disciplinary systems and usually research works focus on specific system aspects for particular applications. The purpose of this review is to provide an overview of the main motivating applications that drive the majority of research works in this field, and summarize fundamental and common algorithmic components required for their development._x000D_ _x000D_ Recent findings: Most system demonstrations of current aerial swarms are based on simulations, some have shown experiments using few 10 s of robots in controlled indoor environment, and limited number of works have reported outdoor experiments with small number of autonomous aerial vehicles. This indicates scalability issues of current swarm systems in real world environments. This is mainly due to the limited confidence on the individual robot's localization, swarm-level relative localization, and the rate of exchanged information between the robots that is required for planning safe coordinated motions._x000D_ _x000D_ Summary: This paper summarizes the main motivating aerial swarm applications and the associated research works. In addition, the main research findings of the core elements of any aerial swarm system, state estimation and mission planning, are also presented. Finally, this paper presents a proposed abstraction of an aerial swarm system architecture that can help developers understand the main required modules of such systems.
Akut Myeloid Lösemi Tedavisi için Hedgehog Ve Otofaji Yolaklarının Düzenlenmesi
(TUBİTAK, 2019) EL KHATIB, Mona; AGÜ, Yaşam ve Doğa Bilimleri Fakültesi, Moleküler Biyoloji ve Genetik Bölümü; EL KHATIB, Mona; 01. Abdullah Gül University
Akut myeloid lösemi (AML) çeşitli moleküler aberasyonlar ve sinyal yolaklarındaki bozuklukları_x000D_ içeren klonal hastalıklar ile karakterize edilen bir grup heterojen malignanttır. Hedgehog (HH)_x000D_ sinyal yolağı birçok kanserde deregüle edilen evrimsel olarak korunan bir sinyal yolağıdır. HH_x000D_ sinyal yolağı lizozomal degradasyon prosesi otofajinin temel regülatörü olan PI3K/AKT/mTOR_x000D_ aksesini de içeren diğer sinyal yolakları ile karşılıklı iletişim halindedir. Bu sinyal yolakları_x000D_ AML’de deregüle edilmiştir. Birçok çalışmada otofajinin AML için bir kaçış mekanizması_x000D_ olabileceği ortaya konulmuştur. Bizim çalışmamızda, HH ve otofaji yolaklarının farklı AML_x000D_ türleri üzerine etkileri incelenmiştir. Çalışmamızda KML hücresi olan K562 ve CMK, MV4-11,_x000D_ MOLM-13 ve NB4 AML hücreleri GLI1 inhibitörü GANT61 ve farklı otofaji modülatörleri ile_x000D_ muamele edilmiştir.MTT sonuçları NB4, MOLM-13 ve MV4-11hücre proliferasyonun GLI_x000D_ inhibisyonu sonrasında düştüğünü ancak CMK’nin diğer AML hücre hatlarına kıyasla GLI_x000D_ inhibisyonuna daha az sensitif olduğunu ortaya koymuştur. Daha sonra, otofaji_x000D_ modülasyonunun farklı AML hücre hatlarının proliferasyonu üzerine etkileri incelenmiştir._x000D_ Otofajinin gerek otofagozom-lizozom füzyonu aşamasında gerekse otofagolizozomal_x000D_ degradasyon aşamasında inhibisyonunun ilaç konsantrasyonu ve muamele süresine bağlı_x000D_ olarak AML sağkalımını azalttığı gözlemlenmiştir. Otofaji modülatörleri ve GANT61’in_x000D_ kombinasyonunun MOLM-13 hücre hattı üzerinde sinerjistik bir etkisinin olduğu fakat CMK_x000D_ hücre hattı üzerinde sinerjistik etkisinin olmadığı gözlemlenmiştir. GANT61 muamelesinin AML_x000D_ hücre hatlarında otofajiyi artırdığı LC3II ekspresyonu ile western blot yöntemi ile ortaya_x000D_ konulmuştur. Buna ek olarak, kombinasyonun MOLM-13 hücresinde LC3II’yi artırdığı_x000D_ gözlenirken, bu oran CMK hücre hattında daha düşüktür. AKT proteinin ekspresyonu ilaca ve_x000D_ hücre hattına gore farklılık göstermektedir. Sonuç olarak, HH ve otofaji sinyal yolaklarının_x000D_ hedeflenmesi MOLM-13 hücre hattı için umut vaatedici bir terapi iken, CMK hücre hattında_x000D_ benzer sonuçlara ulaşılamamıştır.
Beyond Illegality: The Gendered (In-)Securities of Illegal Armenian Care Workers in Turkey
(Ankara Üniversitesi KASAUM, 2018) Teke-Lloyd, Fatma Armagan; 0000-0001-5439-439X; AGÜ, İnsan ve Toplum Bilimleri Fakültesi, Siyaset Bilimi ve Uluslararası İlişkiler Bölümü; Teke-Lloyd, Fatma Armagan; 01. Abdullah Gül University; 06. İnsan ve Toplum Bilimleri Fakültesi; 06.01. Siyaset Bilimi ve Uluslararası İlişkiler
In the migration literature, there has been a shift of interest from studying exclusionary policies ofstates that result in the criminalization of ‘illegal’ migrants towards more subtle forms of incorporation.In this paper, I will examine such as migration regime imposed upon illegal Armenian migrant careworkers, which is characterized by the conditional acceptance of illegality rather than by strictpunishments and deportation. Within this context, Armenian migrant care workers are caught in a legallimbo of belonging and non-belonging. The paper argues that the terms of belonging and nonbelongingare traversable normative-legal categories negotiated by everyday actors in a way that oftencrisscross gender and class hierarchies. Migrant women could become more acceptable if they complywith certain gendered expectations and norms of work while at the same time could easily becomedeportable. At the same time, this article demonstrates that this legal limbo increases the genderedvulnerabilities and labour precarity in women’s everyday lives.
Centella asiatica extract containing bilayered electrospun wound dressing
(Abdullah Gül Üniversitesi, 2019) KOÇ, NURAY; AGÜ, Yaşam ve Doğa Bilimleri Fakültesi, Biyomühendislik Bölümü; KOÇ, NURAY; 01. Abdullah Gül University
Innovative and bioactive wound dressings prepared by electrospinning mimicking the native structure of the extracellular matrix (ECM) have gained significant interest as an alternative to conventional wound care applications. In this study, bilayered wound dressing material was produced by sequential electrospinning of quaternized poly(4- vinyl pyridine) (upper layer) on the Centella Asiatica (CA) extract containing electrospun poly(D, L-lactide-co-glycolide) (PLGA)/poly(3-hydroxybutyrate-co-3- hydroxy valerate) (PHBV) blend membrane (lower layer). Scanning electron microscopy (SEM) was utilized to show a uniform and bead-free fiber structure of electrospun membranes. The average diameter of CA extract containing electrospun PLGA/PHBV blend membrane was calculated 0.471±0.11 µm, whereas the average fiber diameter of electrospun poly(Q-VP) membranes was in the range of 0.460±0.057 µm. Chemical, thermal, mechanical properties, and adsorption capacity of electrospun membranes, as well as the cumulative release of CA from the electrospun PLGA/PHBV membrane, were investigated. Viability, adhesion, and attachment of human fibroblast cells on the electrospun membranes on pre-set days were evaluated by the colorimetric CellTiter 96® Aqueous One Solution Cell Proliferation Assay (MTS assay) and SEM. Results revealed that CA loaded bilayered electrospun wound dressing showed promoted attachment and proliferation of fibroblasts. Hence, it can be concluded that CA extract containing bilayered electrospun wound dressing prepared in this study has a promising potential for wound healing applications.
COMPARISON OF INTERNATIONAL AND DOMESTIC ACQUISITIONS: A LITERATURE REVIEW
(Bandırma 17 Eylül Üniversitesi, 2016) Genç, Ömer Faruk; AGÜ, Yönetim Bilimleri Fakültesi, İşletme Bölümü; Genç, Ömer Faruk; 01. Abdullah Gül University
International Aquisitions (IAs) have been used extensively by companies. Although IAsdiffer from_x000D_ domestic aquisitions, there is not a literature review about how they differ. A literature review of_x000D_ acquisitions in terms of comparison between international and domestic deals is provided in this study._x000D_ Based on the literature, it was shown that international acquisitions differ significantly from domestic_x000D_ acquisitions in terms of motivations, outcomes, success factors, integration problems, information_x000D_ asymmetry, and diversification. The study also identifies new aveanues for acquisition researh. The_x000D_ acquisition paradox and motivation-outcome inconsistency are identified as major issues in acquisition_x000D_ research, and ways to deal with these issues including using benchmarking methodology, risk-adjusted_x000D_ returns, and examining motivations in different ways are provided. In addition, acquisitions by emerging_x000D_ market multinationals and private companies, acquisitions of state-owned enterprises, pre-announcement_x000D_ and negotiation stages are identified as understudied areas with great potential in acquisition research.
Do the Positive Aspects of Tourism Affect Hotel Staff’s Perceptions of Tourists? A Study in Antalya and Eskisehir
(İrfan YAZICIOĞLU, 2017) Emir, Oktay; Gazeloglu, Cengiz; Arslantürk, Yalçın; 0000-0002-7972-1980; 0000-0002-8222-3384; AGÜ, Eğitim Bilimleri Fakültesi, Temel Eğitim Bölümü; Gazeloğlu, Yalçın; 01. Abdullah Gül University
Tourism is a field of activity given importance by both the participants and the tourism investors. In addition to the environmental factors affecting tourism activities, there are economic, social and physical factors depending on tourism activities. As well as the positive aspects of these factors, there are negative ones, too. This study sets out to seek an answer to whether the positive social, economic and physical impacts of tourism affect the perception of tourist thought the opinions of hotel employees. The study data were obtained from hotels tourism establishment certificate in Eskişehir and Antalya in 2015. The total number of questionnaire form evaluated is 874. In order to test the relation among the variables under consideration structural equation model has been employed. The coefficients among the variables in the structural equation model are statistically significant. Considering the study on the whole, hotel employees have awareness of tourism and tourist concepts alike, and there is an inverse relationship between the social impacts of tourism on the perception of tourist in both cities. Besides, there is a linear relationship between the economic and physical impacts of tourism and the perception of tourist
Dynamics in the Diffusion and Institutionalization of Site-Based Management Reform in the United States of America
(Eskişehir Osmangazi Üniversitesi, 2013) Gök, Kubilay; Sayılar, Yücel; AGÜ, Yönetim Bilimleri Fakültesi, İşletme Bölümü; Gök, Kubilay; 01. Abdullah Gül University
This study is examined research question: “How does the_x000D_ diffusion of SBM over time and space resemble the broader_x000D_ social dynamics associated with diffusion of educational policy_x000D_ innovations in particular, and other public policy innovations in_x000D_ general?” Data comes from various secondary data sources._x000D_ Study generates several conclusions. First, institutional theory_x000D_ helps explain the diffusion of SBM. The analysis provides_x000D_ support for institutional theory that pressures to adopt a_x000D_ “fashionable” practice builds gradually over time. It’s also_x000D_ revealed that when isomorphic pressures are absent in a region,_x000D_ diffusion may be explained by nationwide institutional dynamics. Study points to possible learning effects in the regional_x000D_ diffusion process when mimetic pressures are absent. Finally,_x000D_ surprisingly more liberal states can be less likely to move quickly_x000D_ to adopt some policies.
Effect of Bilinear Interpolation on the Texture Analysis of Colonoscopy Images
(IEEE345 E 47TH ST, NEW YORK, NY 10017 USA, 2017) Kacmaz, Rukiye Nur; Yilmaz, Bulent; AGÜ, Mühendislik Fakültesi, Elektrik - Elektronik Mühendisliği Bölümü; 01. Abdullah Gül University
Interpolation is a method that is used to obtain unknown intensities with the help of known intensities on an image. This method is frequently used in the literature to eliminate light reflection on colonoscopy images. Texture features are the most important characteristics used to describe the region or objects of interest in the image. They are the measures of intensity variation of a surface that determine properties such as smoothness, roughness, and regularity. The aim of this study is to find out the how bilinear interpolation applied on colonoscopy images with reflection impact texture features obtained from the same images. A research carried out to make reasonable comparison between a texture feature from an image with no reflection and the same feature obtained from the same image with synthetically added reflections with various percentages. Using the approaches like gray level co-occurence matrix (GLCM), gray level run length matrix (GLRLM), neighborhood gray tone difference matrix (NGTDM) 126 features were extracted from each 32x32 sub-images coming from 610 colonoscopy images. Several of the features extracted from sub-images with no reflection and reflection were not statistically significantly different, while majority of them were affected from the reflections.
FEMINIST ETHICS OF CARE AND ITS IMPORTANCE FOR SOME NORMATIVE QUESTIONS IN INTERNATIONAL POLITICS
(Işıl BAYAR BRAVO/Hamdi BRAVO, 2018) Teke-Lloyd, Fatma Armagan; 0000-0001-5439-439X; AGÜ, İnsan ve Toplum Bilimleri Fakültesi, Siyaset Bilimi ve Uluslararası İlişkiler Bölümü; Teke-Lloyd, Fatma Armagan; 01. Abdullah Gül University; 06. İnsan ve Toplum Bilimleri Fakültesi; 06.01. Siyaset Bilimi ve Uluslararası İlişkiler
This article reviews some of the contributions that the feminist ethics of care framework has made to the study of ethics. Although ethics of care framework has raised a successful critique of the masculunist bias inhering within the prominent Western moral theories, some feminist scholars have maintained a critical attitude towards care ethics because of its tendency to essentialize emotions of feminine caring. In reviewing these different feminist approaches to the study of ethics, the article argues that in thinking about the questions of war and justice in international realm, both care ethicists and its critique could be utilized for a more fruitful understanding of the ethical dimensions of our actions.
FUNCTIONALIZED LOW LUMO [1]BENZOTHIENO[3,2-B][1]BENZOTHIOPHENE (BTBT)-BASED MOLECULAR SEMICONDUCTORS FOR ORGANIC FIELD EFFECT TRANSISTORS
(Abdullah Gül Üniversitesi, Fen Bilimleri Enstitüsü, 2021) Özdemir, Resul; AGÜ, Fen Bilimleri Enstitüsü, Malzeme Bilimi ve Makine Mühendisliği Ana Bilim Dalı; 01. Abdullah Gül University
DAcTTs have provided an excellent π-framework for the development of high mobility p-type molecular semiconductors in the past decade. However, n-type DAcTTs are rare and their electron transporting characteristics remain largely unexplored. In the second chapter of this thesis, the first example of an n-type BTBT-based semiconductor, D(PhFCO)-BTBT, has been realized via a two-step transition metal-free process without using chromatographic purification. The corresponding TC/BG-OFET devices demonstrated μe (max) = ~0.6 cm2/Vs and Ion/Ioff ratio = 107-108. The large band-gap BTBT π-core is a promising candidate for high mobility n-type organic semiconductors and, combination of very large intrinsic charge transport capabilities and optical transparency, may open a new perspective for next-generation (opto)electronics. In the third chapter of this thesis, a series of BTBT-based small molecules, D(C7CO)-BTBT, C7CO-BTBT-CC(CN)2C7, and D(C7CC(CN)2)-BTBT, have been developed in “S-F-BTBT-F-S (F/S: functional group/substituent)” molecular architecture. Combining with D(PhFCO)-BTBT, a molecular library with systematically varied chemical structures has been studied herein for the first time for low LUMO DAcTTs, and key relationships have been elucidated. The molecular engineering perspectives presented in this thesis may give unique insights into the design of novel electron transporting thienoacenes for unconventional optoelectronics.
G7 Countries Unemployment Rate Predictions Using Seasonal Arima Garch Coupled Models
(2021) MUĞALOĞLU Erhan; KILIÇ Edanur; AGÜ, Yönetim Bilimleri Fakültesi, Ekonomi Bölümü; MUĞALOĞLU, Erhan; KILIÇ, Edanur; 01. Abdullah Gül University
Despite the unemployment data have been recently released as seasonally adjusted, seasonality may still exist in moving average (MA) or auto-regressive (AR) terms. This can be detected by searching for a regular pattern in auto-correlation function (ACF) and partial ACF (PACF) diagrams. Therefore, models that aim to forecast unemployment rates should consider their seasonal properties so as to obtain better mean equation estimations. Univariate models mostly employ integrated ARMA (ARIMA) or generalized auto regressive conditional heteroscedastic (GARCH) models or any combination of them. Once the mean equations are structured better, GARCH estimations of variance equation is expected to perform better accuracy in forecasts. This study first examines the ACF's and PACF's of seasonally adjusted unemployment rate data in G-7 countries for 1995-2019 period. Then it compares the 4-quarter and 8-quarter ahead forecast performance of the seasonal ARIMA (SARIMA) coupled volatility models of GARCH in mean, absolute value GARCH, GJR-GARCH, exponential GARCH and asymmetric GARCH models. The performance of these models is also compared to SARIMA and MA filtered volatility models. The results show that seasonality should be re-examined even in seasonally adjusted unemployment data, since SARIMA models outperform ARIMA models in terms of out of sample forecast errors. Besides SARIMA-GARCH models provide better out of sample prediction accuracy.
Historicisizing World System Theory: Sugar and Coffee in Caribbean and in Chiapas
(Gaziantep Üniv. Sosyal Bilimler Enst., 2018) Balkılıç, Özgür; 0000-0001-6929-2548; AGÜ; Balkılıç, Özgür; 01. Abdullah Gül University; 06. İnsan ve Toplum Bilimleri Fakültesi; 06.03. Sosyoloji
The world system theory has been developed during the 1960s and 1970s in order to explain the economic, political and cultural relationship between developed, developing and underdeveloped countries. The main assumption of this theory is that economic and political dynamics which have progressed from the late 16th century towards contemporary ages resulted in unequal and dependent relations between these countries. Consequently, while an advanced economy and consolidated democratic-political institutions emerged in the developed countries, the developing and underdeveloped countries whose natural resources and economic assets are being exploited by the core countries are subjected to a backward economy and politically unstable systems. However, the world system theory has not gone unchallenged; on the contrary, a considerable amount of social scientists accused it of being overwhelmingly functionalist. The main weaknesses of this theory are that it ignores the local Dynamics and it, related with the first point, reduces the lower classes to the passive recipients of historical transformations. In order to fulfill these gaps in the theory, several scholars, in an attempt to explain the expansion of capitalism in non-Western regions, focus on the local dynamics of commodity chains and labor processes in these localities. Following this criticism, this paper argues that the historical development of sugar and coffee production, both of which are the most important commodities of the world trade from the early 16th century cannot be explained ignoring the local dynamics and that the local aspect of labor strategies which are designed to keep the potential producers in the land and production process must be analyzed as an important factor in the historical development of the production of these two commodities. In doing so, the article will analyze the development of labor processes and strategies in sugar and coffee production in Caribbean in the 16th and 17th centuries and Mexico-Chiapas in the 19th century, respectively.
Human identification using palm print images based on deep learning methods and gray wolf optimization algorithm
(SPRINGER, 2024) Alshakree, Firas; Akbas, Ayhan; Rahebi, Javad; 0000-0002-6425-104X; AGÜ, Mühendislik Fakültesi, Bilgisayar Mühendisliği Bölümü; Akbas, Ayhan; 01. Abdullah Gül University
Palm print identification is a biometric technique that relies on the distinctive characteristics of a person’s palm print to distinguish and authenticate their identity. The unique pattern of ridges, lines, and other features present on the palm allows for the identification of an individual. The ridges and lines on the palm are formed during embryonic development and remain relatively unchanged throughout a person’s lifetime, making palm prints an ideal candidate for biometric identification. Using deep learning networks, such as GoogLeNet, SqueezeNet, and AlexNet combined with gray wolf optimization, we achieved to extract and analyze the unique features of a person’s palm print to create a digital representation that can be used for identification purposes with a high degree of accuracy. To this end, two well-known datasets, the Hong Kong Polytechnic University dataset and the Tongji Contactless dataset, were used for testing and evaluation. The recognition rate of the proposed method was compared with other existing methods such as principal component analysis, including local binary pattern and Laplacian of Gaussian-Gabor transform. The results demonstrate that the proposed method outperforms other methods with a recognition rate of 96.72%. These findings show that the combination of deep learning and gray wolf optimization can effectively improve the accuracy of human identification using palm print images.
Hydroponic Agriculture with Machine Learning and Deep Learning Methods
(Gazi Mühendislik, 2023) Bulut,Nurten; Hacıbeyoğlu, Mehmet; 0000-0002-1895-8749; AGÜ, Mühendislik Fakültesi, Bilgisayar Mühendisliği Bölümü; Bulut, Nurten; 01. Abdullah Gül University; 02. 04. Bilgisayar Mühendisliği; 02. Mühendislik Fakültesi
In the face of the rapidly increasing population of our world today, researchers have turned to studies that use existing resources more effectively and efficiently in addition to searching for new resources in order to meet the rapidly decreasing needs such as raw materials and nutrients. The use of hydroponic agriculture, which is one of the alternative methods that can be used to meet the need for nutrients, which is one of the greatest needs of humanity, has become more popular day by day. The use of nutrient solution water instead of soil, the fact that it is not affected by weather conditions, that it can be applied indoors and that it can be vertically oriented are the characteristics that make hydroponic agriculture different from other agricultural methods. In addition, the lack of soil in this agricultural method brings with it the need for more observation and supervision. The aim of this study is to show that the observation and surveillance needs necessary to increase yield in hydroponic agriculture can be achieved using machine learning and deep learning methods. For this purpose, it has been observed that the efficiency of hydroponic agriculture has been increased in experimental studies conducted using five machine learning and deep learning methods. The deep learning method has achieved better results with 99.7% success compared to other methods.
The Joubert syndrome protein CEP41 is excluded from the distal segment of cilia in C. elegans
(2021) Sebiha Cevik; Oktay I Kaplan; AGÜ, Yaşam ve Doğa Bilimleri Fakültesi, Biyomühendislik Bölümü; Cevik, Sebiha; Kaplan, Oktay I.; 01. Abdullah Gül University; 04. Yaşam ve Doğa Bilimleri Fakültesi; 04.02. Moleküler Biyoloji ve Genetik; 04.01. Biyomühendislik
Rare diseases are a fundamental issue in today's world, affecting more than 300 million individuals worldwide. According to data from Orphanet and OMIM, about 50-60 new conditions are added to the list of over 6,000 clinically distinct diseases each year, rendering disease diagnosis and treatment even more challenging. Ciliopathies comprise a heterogeneous category of rare diseases made up of over 35 distinct diseases, including Joubert syndrome (JBTS; OMIM 213300), that are caused by functional and structural defects in cilia. JBTS is an autosomal recessive condition characterized by a range of symptoms, including cerebellar vermis hypoplasia and poor muscle tone. There are now a total of 38 genes that cause JBTS, almost all of which encode protein products that are found in cilia and cilia-associated compartments, such as the basal body and transition zone. CEP41 is a JBTS-associated protein that is found in cilia and the basal body of mammals, but its localization in other ciliary organisms remains elusive. C. elegans is an excellent model organism for studying the molecular mechanisms of rare diseases like JBTS. We, therefore, decided to use C. elegans to identify the localization of CEP41. Our microscopy analysis revealed that CEPH-41(CEntrosomal Protein Homolog 41) not only localizes to cilia but is excluded from the distal segment of the amphid and phasmid cilia in C. elegans. Furthermore, we discovered a putative X-box motif located in the promoter of ceph-41 and the expression of ceph-41 is regulated by DAF-19, a sole Regulatory Factor X (RFX) transcription factor.
Life Cycle Assessment of the Neutralization Process in a Textile WWTP
(Erciyes Üniversitesi, 2020) Şener Fidan, Fatma; Kızılkaya Aydoğan, Emel; Uzal, Niğmet; 0000-0002-0912-3459; 0000-0003-0927-6698; 0000-0002-2397-3628; AGÜ, Mühendislik Fakültesi, İnşaat Mühendisliği Bölümü; Uzal, Nigmet; 01. Abdullah Gül University; 02.02. Endüstri Mühendisliği; 02. Mühendislik Fakültesi; 02.03. İnşaat Mühendisliği
Although industrial wastewater treatment plants (WWTP) have become_x000D_ an important part of textile facilities in reducing environmental pollution_x000D_ problems, they also produce sludge and various emissions such as high chemical_x000D_ oxygen demand, color and conductivity which have serious negative impacts on_x000D_ the environment. One of the processes with enormous chemical consumption in_x000D_ industrial WWTP of textile facilities is the neutralization process, which aims to_x000D_ adjust the pH of the wastewater. Neutralization processes needed to be optimized_x000D_ in order to determine its overall environmental impacts and then identify the most_x000D_ environmentally appropriate options. The aim of this study is to compare the_x000D_ environmental impacts of carbon dioxide and sulfuric acid, which are two_x000D_ alternative chemicals used in the neutralization process of textile facilities, using_x000D_ Life Cycle Assessment (LCA) approach. The environmental impacts resulting from_x000D_ the use of these two chemicals proposed according to the Reference document on_x000D_ Best Available Techniques (BREF) Document for Textile Industry were revealed by_x000D_ the CML-IA method and the gate-to-gate method. According to the results, using_x000D_ carbon dioxide instead of sulfuric acid, the best improvement was in the abiotic_x000D_ depletion category with 92%, while the least improvement was in the_x000D_ eutrophication potential with 39%. No improvement was observed in the global_x000D_ warming potential and human toxicity impacts.
Movie Recommendation Systems Based on Collaborative Filtering: A Case Study on Netflix
(Erciyes Üniversitesi, 2021) Sütçü, Muhammed; Erdem, Oğuzkan; Kaya, Ecem; 0000-0002-4634-7638; 0000-0002-8547-7929; 0000-0002-8523-9103; AGÜ, Mühendislik Fakültesi, Endüstri Mühendisliği Bölümü; Sütçü, Muhammed; Erdem, Oğuzkan; 01. Abdullah Gül University
User ratings on items like movies, songs, and shopping products are used_x000D_ by Recommendation Systems (RS) to predict user preferences for items that have_x000D_ not been rated. RS has been utilized to give suggestions to users in various domains_x000D_ and one of the applications of RS is movie recommendation. In this domain, three_x000D_ general algorithms are applied; Collaborative Filtering that provides prediction_x000D_ based on similarities among users, Content-Based Filtering that is fed from the_x000D_ relation between item-user pairs and Hybrid Filtering one which combines these_x000D_ two algorithms. In this paper, we discuss which methods are more efficient in movie_x000D_ recommendation in the framework of Collaborative Filtering. In our analysis, we use_x000D_ Netflix Prize dataset and compare well-known Collaborative Filtering methods_x000D_ which are Singular Value Decomposition, Singular Value Decomposition++, KNearest Neighbour and Co-Clustering. The error of each method is calculated by_x000D_ using Root Mean Square Error (RMSE). Finally, we conclude that K-Nearest_x000D_ Neighbour method is more successful in our dataset.
On Critical Buckling Loads of Columns under End Load Dependent on Direction
(Hindawi Publishing Corporation, 2014) Başbük, Musa; Eryılmaz, Aytekin; Atay, Mehmet Tarik; AGÜ, Mühendislik Fakültesi, Makine Mühendisliği Bölümü; Atay, M.Tarık; 01. Abdullah Gül University; 02.01. Mühendislik Bilimleri; 02. Mühendislik Fakültesi
Most of the phenomena of various fields of applied sciences are nonlinear problems. Recently, various types of analytical approximate solution techniques were introduced and successfully applied to the nonlinear differential equations. One of the aforementioned techniques is the Homotopy analysis method (HAM). In this study, we applied HAM to find critical buckling load of a column under end load dependent on direction. We obtained the critical buckling loads and compared them with the exact analytic solutions in the literature.
On Critical Buckling Loads of Euler Columns With Elastic End Restraints
(HİTİT ÜNİVERSİTESİ, 2016) Başbük, Musa; Eryılmaz, Aytekin; Coşkun, Sefa B.; Atay, Mehmet Tarık; AGÜ, Mühendislik Fakültesi, Makine Mühendisliği Bölümü; Atay, Mehmet Tarık; 01. Abdullah Gül University; 02.01. Mühendislik Bilimleri; 02. Mühendislik Fakültesi
I n recent years, a great number of analytical approximate solution techniques have been introduced to find a solution to the nonlinear problems that arised in applied sciences. One of these methods is the homotopy analysis method (HAM). HAM has been successfully applied to various kinds of nonlinear differential equations. In this paper, HAM is applied to find buckling loads of Euler columns with elastic end restraints. The critical buckling loads obtained by using HAM are compared with the exact analytic solutions in the literature. Perfect match of the results veries that HAM can be used as an efficient, powerfull and accurate tool for buckling analysis of Euler columns with elastic end restraints.
Overcoming the Obstacles of Peace Education through Wellbeing Practices
(Adıyaman Üniversitesi, 2021) Bengü, Elif; Bilgin, Gülistan Gursel; 0000-0001-9817-7207; AGÜ; Bengü, Elif; 01. Abdullah Gül University; 10. Rektörlük
A growing body of literature reports structural, cultural, social, and political barriers making_x000D_ it challenging and stressful to integrate peace education in teacher education and in-service_x000D_ teacher education programs. To support peace educators in achieving what they stand for, this_x000D_ study proposes integrating wellbeing practices and approaches into the curricula. Drawing_x000D_ from the fields of peace education, educational leadership and policy studies and higher_x000D_ education, this study examines wellbeing as a potentially promising scholarly field to support_x000D_ peace education scholarship. For happiness and life satisfaction, wellbeing links a person's_x000D_ physical, mental, emotional and social health factors not just to internal factors such as_x000D_ optimism, resilience and self-esteem but also external factors such as income, satisfaction at_x000D_ work and social networks. In order to explore the ways wellbeing can contribute to peace_x000D_ education, we first expand on peace education as a controversial and challenging practice_x000D_ especially for practitioners in the field. Next, we discuss wellbeing practices as they relate to_x000D_ educational settings. Finally, we discuss that peace educators can be supported by wellbeing_x000D_ practices to overcome the degrading and demotivating effects of their practices.

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