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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.
Ceramide is a key factor that regulates the crosstalk between TGF-beta and sonic hedgehog signaling at the basal cilia to control cell migration and tumor metastasis
(ELSEVIER SCI LTDTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND, 2016) Gencer, Salih; Ogretmen, Besim; AGÜ, Yaşam ve Doğa Bilimleri Fakültesi, Moleküler Biyoloji ve Genetik Bölümü; Gencer, Salih; 01. Abdullah Gül University
Ceramide is a key factor that regulates the crosstalk between TGF-beta and sonic hedgehog signaling at the basal cilia to control cell migration and tumor metastasis
Characteristics of Rural Architecture and its use in the çomakdaĞ Region: çomakdaĞ KizilaĞaç Village, Turkey
(Taylor & Francis Group, Vernacular Architecture, 2020) V. Betül Kurtuluş; Neriman Şahin Güçhan; https://orcid.org/0000-0001-9768-6982; AGÜ, Mimarlık Fakültesi, Mimarlık Bölümü; Kurtuluş, V. Betül; 01. Abdullah Gül University
Çomakdağ is a rural region consisting of five villages and six plateau settlements in the Beşparmak mountain range in Milas district, Muğla province, Turkey. The simple stone masonry buildings on the rocky cliffs and the indigenous lifestyle of the local people form unique characteristics of the region. The historic urban fabric is still visible, and the traditional lifestyle continues in the region. However, the population has been decreasing, and some parts of the traditional fabric have lost their local characteristics. This article presents the typical characteristic of the Çomakdağ houses that date from the late nineteenth and twentieth centuries. The aim is to introduce the rural architecture of the region and investigate the interactions between spaces and daily life. Moreover, physical interventions to adapt the houses to today’s needs in the Çomakdağ Kızılağaç village are explored through observations and interviews.
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.
Control over Cavity Assisted Charging for Dicke Quantum Battery
(ResearchGate, 2020) Sergey Borisenok; AGÜ, Mühendislik Fakültesi, Elektrik - Elektronik Mühendisliği Bölümü; 01. Abdullah Gül University; 02. Mühendislik Fakültesi; 02.05. Elektrik & Elektronik Mühendisliği
We study feed forward (open-loop) control approach for driving the cavity assisted charging process in the Dicke quantum battery, in which the coupling between the cavity and quantum twolevel subsystem(s) plays a role of control parameter.The dynamics of the system is described with the Tavis - Cummings Hamiltonian. The analytical result is supported with the corresponding numerical simulations to demonst
Design and analysis of low profile and low SAR full-textile UWB wearable antenna with metamaterial for WBAN applications
(ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS, 2020) Husnu Yalduz; Timucin EmreTabaru; Veli Tayfun Kilic; Mustafa Turkmen; AGÜ, Mühendislik Fakültesi, Elektrik - Elektronik Mühendisliği Bölümü; 01. Abdullah Gül University; 02. Mühendislik Fakültesi; 02.05. Elektrik & Elektronik Mühendisliği
In this paper, a low-profile wearable antenna with metamaterial (MM) for wireless body area network (WBAN) applications is presented. The designed antenna with MM operates in the ultra-wideband (UWB) between 4.55 and 13 GHz and it has a thickness of 4.68 mm. To the best of our knowledge, it is the lowest thickness reported in the literature for UWB antennas with MM. The proposed is designed and manufactured using fully flexible textiles. The designed antenna was simulated in free space and on the human body model. Simulation results show that gain, directionality, and front-to-back ratio of the antenna increase considerably with the placement of the MM. Also, in simulations, it is found that the specific absorption rate (SAR) values for the designed antenna reduce by 98.3% when MM is used. These SAR values calculated for the designed antenna with MM are well below the limits defined in European standards. The designed antenna and metamaterials were manufactured, too, and scattering parameters were measured. Measurement results are in good agreement with the results found in the simulations. It shows that the proposed antenna is very suitable for use in WBAN applications due to its low thickness, having low SAR, and UWB operation.
Differences in the Self: Clinical Individuals Have Less Individuation and Promotion, but More Prevention
(HOGREFE AG-HOGREFE AG SUISSE, 2023) Yalcindag, Bilge; 0000-0001-7867-7845; AGÜ, İnsan ve Toplum Bilimleri Fakültesi, Psikoloji Bölümü; Yalcindag, Bilge; 01. Abdullah Gül University
This research aimed to compare two samples (clinical and university) in terms of basic self-orientations and self-regulation strategies. We expected lower scores on basic self-orientations and promotion, and higher scores on prevention in the clinical sample. The balanced model of self claims that the flourishing of basic self-orientations (individuation and relatedness) is related to better psychological functioning. However, this claim was never tested in a clinical sample. Additionally, the regulatory focus theory, a theory of self-regulation, claims that to reach desired end states, individuals use two systems: promotion (advancement, accomplishment) and prevention (conservation, security). Individuals with psychopathology symptoms may use promotion less and prevention more. The clinical sample consisted of 91 people (55 females, 36 males) who were under a psychological/psychiatric treatment due to various mental health complaints (Mage=29.3, SD=5.95, Range=18-42). Most of them had at least university degrees (69%). The second sample consisted of 94 university students (63 females, 30 males; Mage=23.9, SD=2.22, Range=22-34). The first MANCOVA, comparing clinical vs. university samples on individuation and relatedness controlling for age and gender, revealed a group effect (F(2,171)=4.751, p=.01, Wilks’ Lambda=0.95, partial η2=.53). Individuation was lower in clinical sample (M=4.90) than university sample (M=5.29). The second MANCOVA showed a group effect on the promotion and prevention (F(2,171)=13.574, p=.000, Wilks’ Lambda=0.86, partial η2=0.14). Promotion was lower in clinical sample (M=19.74) than in university sample (M=22.37), however prevention was higher (M=17.52) than university sample (M=15.56). The psychological symptoms varied in clinical sample, and were not assessed in university sample. Individuals in clinical sample were less likely to have an individuated self, to regulate themselves with promotion, but more likely to regulate themselves with prevention. Researchers and clinicians should work on thwarted self-orientations and dysfunctional self-regulation strategies.
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.
Editors' Introduction
(Cambridge University Press, Cambridge University Press) Yükseker, Deniz; Kolluoǧlu, Biray; Dinçer, Evren Mehmet; 0000-0002-7813-0919; AGÜ; Dinçer, Evren Mehmet; 01. Abdullah Gül University; 06. İnsan ve Toplum Bilimleri Fakültesi; 06.03. Sosyoloji
Since before the publication of New Perspectives on Turkey’s spring 2023 issue, politics has been at the top of the agenda of public discussions in Turkey. The reason was the general elections for the presidency and the parliament on May 14; in the run-off on May 28, Recep Tayyip Erdogan was re-elected for a third, five-year term and the party ˘ he leads, the Justice and Development Party (Adalet ve Kalkınma Partisi; AKP), maintained its majority in the parliament in an alliance with the Nationalist Action Party (Milliyetçi Hareket Partisi; MHP) and smaller extremist parties. To what extent and how quickly the election results will lead to a further descent into full authoritarianism – already well documented in the pages of previous NPT issues – is something that social scientists are likely to continue to observe. Domestic politics therefore will continue to be an important theme for social science research on Turkey from diverse disciplines and methodologies
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.
Ergotropy of Quantum Battery Controlled via Target Attractor Feedback
(IOSR Journal Of Applied Physics (IOSR-JAP), 2020) Sergey Borisenok; AGÜ, Mühendislik Fakültesi, Elektrik - Elektronik Mühendisliği Bölümü; 01. Abdullah Gül University; 02. Mühendislik Fakültesi; 02.05. Elektrik & Elektronik Mühendisliği
Model: Quantum battery (QB) is a device that is capable to be charged efficiently and store the energy for a long period of time to be transferred to consumption centers. There are many different physical types of such devices and different charging schemes. Here we discuss the single-qubit based QB in the form of quantum oscillator in a Markovian bath environment. The charging of QB is performed via so-called 'coherent' control u(t) in the Hamiltonian and time dependent spectral density n(t) as an 'incoherent' control (number of excitations in the bath). Our goal is to drive the ergotropy of the stored qubit via the certain control algorithm. Methods: For the effective control we apply here Kolesnikov’s ‘target attractor’ (TA) feedback algorithm. In the frame of this approach we form an attractor set targeting the evolution of the basic characteristics of quantum battery. TA method makes the effective design of the control fields charging the battery; the corresponding control signals could be restored explicitly from the dynamical equations. Interestingly, the proposed algorithm applied to our single qubit model of QB has an analytical solution. Results and Discussion: As a result for the control goal, we obtain an exponentially converting behavior for driving the quantum battery ergotopic characteristics. Our algorithm can be extended to the multi-qubit model of QB (for the parallel or collective charging scheme). It could be applied also for different physical realizations of QBs: Dicke QB, spin QB, harmoniс oscillator QB; and for all working stages of the QB (charging, long time storage and the energy transfer to a consumption center or engine). Conclusion: Feedback algorithms, particularly in the form of target attractor approach, can be applied efficiently to control the set of fundamental characteristics of quantum batteries, including the ergotropy, charging power and others. The analytical study of the proposed model and its numerical simulations demonstrate the possibility to imply the developed mathematical algorithm experimentally for a single qubit system and the set of few qubits as well.
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.
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.
Grasp based metaheuristic approach for dynamic flexible job shop scheduling problem.
(2020) Alper Hamza Dayı; Fatma Selen MADENOĞLU; Adil Baykasoğlu; AGÜ, Yönetim Bilimleri Fakültesi, İşletme Bölümü; 01. Abdullah Gül University; 03.01. İşletme; 03. Yönetim Bilimleri Fakültesi
Grasp
Grey Spaces: Transitory Spaces in Liquid Modernity
(DergiPark, KARE - International Comparative Journal of Literature, History and Philosophy, 2020) Nihan MUŞ ÖZMEN; https://orcid.org/0000-0002-6137-882X; AGÜ; MUŞ ÖZMEN, Nihan; 01. Abdullah Gül University
In the global age of today, while our lives are constantly dragged from one place to another, we consume places temporarily. It is also difficult to establish a connection with these places during short-term relationships. Many thinkers have pondered to describe these places where there is no attachment and where the sense of belonging is lacking. Within the scope of this article, the studies of Foucault – Des Espace Autres (Of Other Spaces: Utopias and Heterotopias), Relph – Place and Placelessness, Augé – Non-Places: Introduction to an Anthropology of Supermodernity and Koolhaas – Junkspace are discussed, which take the most place in the literature. First, these studies were examined in detail, and then all terms were compared with each other. In order to speak of the terms from a general view, a common term has been developed within the scope of this article and all these spaces have been defined as Grey Spaces.
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.

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