WoS İndeksli Yayınlar Koleksiyonu
Permanent URI for this collectionhttps://hdl.handle.net/20.500.12416/8653
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Article Industry 4.0 Readiness of SMEs: Active Participants or Silent Audience of the Revolution?(Sosyoekonomi Soc, 2023) Karapolatgil, Ahmet Anıl; Sener, IrgeGünümüzde Dördüncü Sanayi Devriminin teknolojik sonuçları tüm örgütleri etkilemektedir. Fakat KOBİ’lerin güncel tepkileri nadiren araştırılmıştır. Bu nedenle, bu çalışmada KOBİ’lerin güncel konumlarına odaklanılmış ve Endüstri 4.0 teknolojileri karşısındaki hazırlıklarının ve farkındalıklarının tespiti amaçlanmıştır. Çalışmanın örneklemini oluşturan Ankara’da faaliyet gösteren 44 KOBİ yöneticisi ile yarı yapılandırılmış mülakatlar gerçekleştirilmiş olup, içerik analizi ile 3 ana tema belirlenmiştir. Araştırmanın bulguları belirlenen ana temalar kapsamında incelenmiştir. Bu kapsamda, örneklemde yer alan KOBİ’lerin Endüstri 4.0 için düşük farkındalığa sahip oldukları ve hazırlıklarının yetersiz olduğu sonucuna ulaşılmıştır.Article Citation - WoS: 12Citation - Scopus: 19Artificial Intelligence Applications in Earthquake Resistant Architectural Design: Determination of Irregular Structural Systems With Deep Learning and Imageai Method(Gazi Univ, Fac Engineering Architecture, 2020) Bingol, Kaan; Akan, Asli Er; Ormecioglu, Hilal Tugba; Er, ArzuAlthough the architectural design process is carried out with the collaboration of experts who are experienced in many different areas from the main preferences to the detailing stage, the major decisions such as plan organization, mass design etc. are taken by the architect. Computer Aided Design (CAD) programs are generally effective after the major decisions of the design are taken. For this reason, it is common for the main decisions, taken during the design process, to be changed during the analysis of the structural system. In order to prevent this, in the early stages of architectural design, earthquake system awareness and structural system design should be included as an design input; as, the failure of the structural system which did not considered well in the architectural design phase leads to unexpected revisions in the implementation project phase and thus leads to serious losses in both time and cost. The aim of this study is to create an Irregularity Control Assistant (IC Assitant) that can provide architects general information about the appropriateness of structural system decisions to earthquake regulations in the early stages of design process by using the deep learning and image processing methods. In this way, correct decisions will be made in the early stages of the design and unexpected revisions that may occur during the implementation project phase will be prevented.Article Citation - WoS: 1Citation - Scopus: 2Classification of Low Probability of Intercept Radar Waveforms Using Gabor Wavelets(Gazi Univ, Fac Engineering Architecture, 2021) Ergezer, HalitLow Probability of Intercept (LPI Radar) is a class of radar with specific technical characteristics that make it very difficult to intercept with electronic support systems and radar warning receivers. Because of their properties as low power, variable frequency, wide bandwidth, LPI radar waveforms are difficult to intercept by ESM systems. In recent years, studies on the classification of waveforms used by these types of radar have been accelerated. In this study, Time-Frequency Images (TFI) has been obtained from the LPI radars waveforms by using Choi-Williams Distribution method. From these images, feature vectors have been generated using Gabor Wavelet transform. In contrast to many methods in the literature, waveform classification has been performed by directly comparing the feature vectors obtained without using any machine learning method. With the method we propose, classification accuracies were obtained at intervals of 2 dB between -20 dB and 10 dB and performed at reasonable classification accuracy rates up to -8 dB SNR value. Better results than the best reported in the literature were obtained for some signal types. The results obtained for all waveform types are given in comparison with the results of the existing methods in the literature.Article Citation - WoS: 6Modeling and Analysis of a Microfluidic Capillary Valve(2017) Yıldırım, EnderBurada, mikroakışkan cihazlarda kullanılan kılcal valflerin analizi için bir numerik model sunulmuştur. Kılcal valfler, özellikle kılcal kuvvetlerin baskın olduğu pasif mikroakışkan sistemlerde, akışı yönlendirmek için tercih edilirler. Bu çalışmadaki kılcal valf, dikdörtgen kesitli bir mikrokanalın, derinliği ve genişliği kanalın yüksekliği ve genişliğinden daha fazla olan bir açıklığa doğru aniden genişlemesi ile oluşmaktadır. Bu şekildeki valflerin basınç kapasitesini belirlemek için herhangi bir analitik modelin bulunmaması göz önünde bulundurularak, enerji enazlamaya dayalı bir numerik model kullanılmıştır. Modelin çözümü için ücretsiz bir yazılım olan Surface Evolver kullanılmıştır. Basınç kapasitesinin, çalışma sıvısının kanal malzemesi üzerindeki temas açısı ile ilişkisi incelenmiştir. Tüm yüzeylerde temas açısının 90o olması durumunda basınç kapasitesinin en yüksek olacağı belirlenmiştir. Buna bağlı olarak, 100 µm × 100 µm kesitli kanallar için temas açısı 90o olduğunda valfler yaklaşık 2.5kPa'ya çıkabilmektedir. Model, sonuçların literatürdeki sonuçlarla karşılaştırılması ile doğrulanmıştır.Article Citation - WoS: 3Observed Effects of Software Processes Change in Three Software Firms: Industrial Exploratory Case Study(Pamukkale Univ, 2019) Yilmaz, MuratSoftware development processes require continuous improvement in line with emerging new technologies and the possibilities it provides. A new generation of software development models based on product demands of software customers with marketable functions aims to increase the intermediate product production speed and thus the number of interim versions. In the light of these needs, software companies need to oversee their development processes to meet their customers' needs. But more importantly, companies are forced to change their processes in line with innovative practices in order not to cut back on the software production line. In this article, the software development methods of the three companies that develop software are examined in detail by the case study method, and the process change activities are systematically detailed. In the light of the information obtained, the experiences of the three firms in the software development methods are questioned and the effects of these acquisitions on the processes are discussed. As a result of the study, it has been observed that the software development success has a significant impact on the well-being of the process, and the software development teams are trying to design their own processes in the light of the gains they acquire.