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  • Review
    Citation - WoS: 73
    Citation - Scopus: 112
    Devops and Software Quality: a Systematic Mapping
    (Elsevier, 2020) Mishra, Alok; Otaiwi, Ziadoon
    Quality pressure is one of the factors affecting processes for software development in its various stages. DevOps is one of the proposed solutions to such pressure. The primary focus of DevOps is to increase the deployment speed, frequency and quality. DevOps is a mixture of different developments and operations to its multitudinous ramifications in software development industries, DevOps have attracted the interest of many researchers. There are considerable literature surveys on this critical innovation in software development, yet, little attention has been given to DevOps impact on software quality. This research is aimed at analyzing the implications of DevOps features on software quality. DevOps can also be referred to a change in organization cultures aimed at removal of gaps between the development and operations of an organization. The adoption of DevOps in an organization provides many benefits including quality but also brings challenges to an organization. This study presents systematic mapping of the impact of DevOps on software quality. The results of this study provide a better understanding of DevOps on software quality for both professionals and researchers working in this area. The study shows research was mainly focused in automation, culture, continuous delivery, fast feedback of DevOps. There is need of further research in many areas of DevOps (for instance: measurement, development of metrics of different stages to assess its performance, culture, practices toward ensuring quality assurance, and quality factors such as usability, efficiency, software maintainability and portability). (C) 2020 The Author(s). Published by Elsevier Inc.
  • Article
    Citation - Scopus: 6
    Predictive Models for Treated Clayey Soils Using Waste Powdered Glass and Expanded Polystyrene Beads Using Regression Analysis and Artificial Neural Network
    (Springer Science and Business Media Deutschland GmbH, 2024) Akis,E.; Akış, Ebru; Cigdem,O.Y.; Akış, Ebru; Civil Engineering; Civil Engineering
    Waste materials contribute to a wide range of environmental and economic problems. To minimize their effects, a safe strategy for reducing such negative impact is required. Recycling and reusing waste materials have proved to be effective measures in this respect. In this study, an eco-friendly treatment is investigated based on using waste powdered glass (WGP) and EPS beads (EPSb) as mechanical and chemical admixers in soils. For this purpose, Atterberg limit, standard proctor, free swell, and unconfined compression tests are performed on soil samples with different ratios of waste materials at their optimum moisture contents. The obtained test results indicate that adding WGP to cohesive soils increases the unconfined compressive strength (UCS) and reduces free swell (FS). In contrast, using EPSb reduces both FS and UCS of the treated soil samples. An optimum combination of both waste materials is determined for the improvement of the properties of high plasticity clay used in this study. Furthermore, multiple linear regression (MLR) and artificial neural network (ANN) methods are used to predict the FS and UCS of the clayey soils based on the data obtained here and the experimental test results reported in the literature. Once the FS and UCS values of untreated soil and additive percentages are defined as independent variables, both methods are shown to predict the FS and UCS values of the treated soil samples on a satisfactory level with the coefficient of correlation (R2) values greater than 0.926. Additionally, when only the index properties (liquid limit, plastic limit, and plasticity index) of the soil samples with waste materials are used as dependent variables, the R2 values obtained by the ANN method are 0.968 and 0.974 for FS and UCS, respectively. The results of the untreated soil samples' FS and UCS tests are known, and the linear regression and ANN techniques yield similar results. Lastly, the ANN method is used to predict the FS and UCS of the treated samples in accordance to the limited predictors (e.g., only the Atterberg limits of the soil sample). © The Author(s) 2024.
  • Conference Object
    Citation - WoS: 9
    Citation - Scopus: 17
    The Integration of Distance Learning Via Internet and Face To Face Learning: Why Face To Face Learning Is Required in Distance Learning Via Internet?
    (Elsevier Science Bv, 2009) Marsap, A.; Narin, M.
    The distance learning via internet includes an important processing in many fields. The rate and the contribution of face to face learning on e-learning integrate important meanings in this learning process. Because of that reason distance learning is required to use mostly the facilities of face to face learning. Distance learning has a vital role in the process of e-learning's future. By the help of flexibility in e-learning, it includes consistently innovation and development in this approach. Nowadays, the strategy that is required for developing the quality and standards takes over the integration of academic standard, academic supervision and interaction of face to face learning in developing distance learning. It is important to design the academic approaches as a academically, scientifically and as a completion of the dynamic processes. E-learning models are based on the high quality, participation and productivity. By the help of productivity, moving the processes into the e-ambient and saving up the expenses, objectives of e-learning can reach to the level of the basics of modern e-learning. In this study, it is emphasized the importance of face to face learning on developing distance learning via internet for the e-learning environment. For this purpose, firstly it is pointed out the aim and the developing process of distance learning after that it is argued why face to face learning is required in distance learning and lastly it is determined the prudential suggestions and evaluations of this issue. (C) 2009 Elsevier Ltd. All rights reserved
  • Article
    Citation - WoS: 2
    Citation - Scopus: 4
    Optimum Cost Prediction of Reinforced Concrete Cantilever Retaining Walls
    (Mdpi, 2023) Akis, Ebru
    Reinforced concrete cantilever retaining walls (RCCRWs) are widely used in civil engineering projects as a common type of retaining structure. The design of these structures focuses on ensuring safety against various failure scenarios and compliance with standard building code requirements. This research aims to enhance the design process of RCCRWs by developing a specific code and optimizing it through a metaheuristic-based algorithm. In this study, the cost prediction of RCCRWs is also investigated through a parametric study involving key variables such as wall height, seismic zone, backfill material properties, and backfill inclination angle. To achieve this, non-linear regression analysis is employed to establish an empirical correlation, enabling cost estimation for optimized RCCRWs. The resulting prediction equation is simple to use, requiring only limited inputs. Therefore, it can be applied during the initial stages of a project, making a valuable contribution in determining approximate costs for RCCRW projects.
  • Article
    Citation - WoS: 6
    Citation - Scopus: 7
    User-Friendly Locations of Error Messages in Web Forms: an Eye Tracking Study
    (int Group Eye Movement Research, 2016) Inal, Yavuz
    Error messages presented to users are one of the most important elements of Web forms. Error messages are embedded in different parts of the forms available on the Internet and presented in various formats. One of the measures of a user-friendly error message design is the ability to easily capture users' attention and facilitate fast error correction. In this empirical study, I tested four different locations of error messages frequently used in Web forms on 32 participants. In addition, I analysed the participants' interactions with error messages through their eye movements. The results of the study showed that the participants spotted the error message fastest when it was displayed on the right side of the erroneous input field. When error messages displayed further the input field users have less saccades to and fixations on error messages compared to those located near to this field, suggesting that less effort has been spent to understand the given message. However, group mean differences were not statistically significant for form completion time, error recognition time, the number of saccades, and error correction time.
  • Article
    Citation - WoS: 10
    Citation - Scopus: 15
    Increasing Innovative Working Behaviour of Information Technology Employees in Vietnam by Knowledge Management Approach
    (Mdpi, 2020) Quoc Trung Pham; Anh-Vu Pham-Nguyen; Misra, Sanjay; Damasevicius, Robertas; Pham-nguyen, Anh-vu; Pham, Quoc Trung
    Today, Knowledge Management (KM) is becoming a popular approach for improving organizational innovation, but whether encouraging knowledge sharing will lead to a better innovative working behaviour of employees is still a question. This study aims to identify the factors of KM affecting the innovative working behaviour of Information Technology (IT) employees in Vietnam. The research model involves three elements: attitude, subjective norm and perceived behavioural control affecting knowledge sharing, and then, on innovative working behaviour. The research method is the quantitative method. The survey was conducted with 202 samples via the five-scale questionnaire. The analysis results show that knowledge sharing has a positive impact on the innovative working behaviour of IT employees in Vietnam. Besides, attitude and perceived behavioural control are confirmed to have a strong positive effect on knowledge sharing, but the subjective norm has no significant impact on knowledge sharing. Based on this result, recommendations to promote knowledge sharing and the innovative work behaviour of IT employees in Vietnam are made.
  • Review
    Elbise-i Osmaniye – 1873 Viyana Sergisi – Kıyafet Albümleri
    (2022) Özsuca, Fatma Filiz
    Osmanlı resim sanatlarının saray ve çarşı ressamları tarafından gerçekleştirilen eserleri arasında önemli yer teşkil eden ‘kıyafet albümleri’, 1873 Viyana Dünya Sergisi katılımı için özel hazırlanan ‘Elbise-i Osmaniye’ kavramsal olarak benzerlik göstermekte ancak yapılış amacı ve kullanılan teknikler açısından birbirlerinden ayrılmaktadır. Bu çalışmanın amacı, 1873 Viyana sergisi, Elbise-i Osmaniye ve kıyafet albümleri geleneğinin incelenmesi ve karşılaştırma yapılmasıdır. Kıyafet albümlerinin günümüze ulaşan örnekleri ve Elbise-i Osmaniye ile ilgili yazılan değerlendirmeler araştırılmıştır. Osmanlı sanatı çerçevesinde 16. yüzyıldan başlayarak gelişen kıyafet albümleri ile 1873 Viyana Sergisi için özel olarak hazırlanan Elbise-i Osmaniye karşılaştırıldığında kavramsal temelde benzerlikler gözlenmektedir. Osmanlı resim sanatının önemli bir dönemine ışık tutan Kıyafet albümleri hem resim sanatının gelişimini hem de Osmanlı İmparatorluğu sınırlarında yaşayan insanların yapısını yansıtmaları açısından önemli yere sahiptir. İlki 1851 yılanda Londra’da düzenlenen Dünya Sergilerinin temel amacı dünyadaki farklı ülkelerin üretim olanaklarının, kültürel yapılarının ve sosyal yaşamlarının tanıtımı ve bilgi alışverişine olanak sağlamaktır. 1873 Viyana Sergisi için hazırlanan Elbise-i Osmaniye bu temelden yola çıkılarak hazırlanmış ve Osmanlı ahalisini bölgelere, etnik kökenlerine, cinsiyete, mesleklere göre ayrıntılı sınıflandırma yaparak fotoğraf ile belgelemiştir.
  • Article
    Alasdaır Gray'in “the Fall Of Kelvın Walker” Adlı Romanında Mekân Temsilleri
    (2021) Çiftcioğlu, Simla Kötüz
    İskoç Edebiyatı'nın en önemli yazarlarından biri olarak kabul edilen Alasdair Gray,eserlerinde İskoç tarihi, kültürü, kimliği ve edebi geleneğinin sorunlarını politik bir bakışaçısıyla ele alır. Gray'in yazınında politik duruşunu yansıtan en dikkat çekici unsurlardanbiri, eserlerinde genellikle İskoç mekânların, özellikle Glasgow'un, kullanılmasıdır. AncakThe Fall of Kelvin Walker (1985) isimli romanında Gray, kurgu mekânı olarak Londra'yıtercih eder. İskoç başkahramanın Londra algısı ve kimlik arayışının bir parçası olarakkendine Londra'da bir ev kurma süreci anlatının önemli bir parçasını oluşturur. AlasdairGray'in İngiliz-İskoç ilişkilerine yönelik takındığı politik tutumu, bu romanda kentsel vekişisel mekân temsilleri aracılığıyla yansıttığı düşünülmektedir. Bu bağlamda, bu çalışmaThe Fall of Kelvin Walker'daki kentsel mekân olarak Londra'nın kullanımını ve kişiselmekân olarak ev olgusunun temsilini Henri Lefebvre'nin mekânsal üçlü önermesi ışığındaincelemeyi amaçlar. Çalışmada, kentsel mekân olarak Londra ve kişisel mekân olarak ev,mekânsal üçlü önermesinin unsurları olan mekân temsilleri, temsil mekânları vemekânsal pratikler kapsamında incelenecektir.
  • Article
    Citation - WoS: 33
    Citation - Scopus: 56
    Smart irrigation system for environmental sustainability in Africa: An Internet of Everything (IoE) approach
    (Amer inst Mathematical Sciences-aims, 2019) Adenugba, Favour; Misra, Sanjay; Maskeliunas, Rytis; Damasevicius, Robertas; Kazanavicius, Egidijus
    Water and food are two of the most important commodities in the world, which makes agriculture crucial to mankind as it utilizes water (irrigation) to provide us with food. Climate change and a rapid increase in population have put a lot of pressure on agriculture which has a snowball effect on the earth's water resource, which has been proven to be crucial for sustainable development. The need to do away with fossil fuel in powering irrigation systems cannot be over emphasized due to climate change. Smart Irrigation systems powered by renewable energy sources (RES) have been proven to substantially improve crop yield and the profitability of agriculture. Here we show how the control and monitoring of a solar powered smart irrigation system can be achieved using sensors and environmental data from an Internet of Everything (IoE). The collected data is used to predict environment conditions using the Radial Basis Function Network (RBFN). The predicted values of water level, weather forecast, humidity, temperature and irrigation data are used to control the irrigation system. A web platform was developed for monitoring and controlling the system remotely.
  • Article
    Citation - WoS: 3
    Citation - Scopus: 3
    Cellular Defense Enzyme Profile for Non-Cytotoxic and Phenol Enriched Extracts of heliotropium Europaeum, carlina Oligocephala and echinops Ritro
    (Asian Network Scientific information-ansinet, 2018) Isgor, Belgin S.; İşgör, Sultan Belgin; Isgor, Yasemin G.; Geven, Fatmagul; İşgör, Sultan Belgin; Chemical Engineering; Chemical Engineering
    Background and Objective:The discovery of traditional plants with some medicinal properties, verifying their biological targets and the bioassay guided standardization of their active components are the particular interest of diverse research groups recently. These efforts may help to revise the therapy modalities with natural product supplements. In this context, the possible biological targets of plants, namely Heliotropium europaeum, Carlina oligocephala and Echinops ritro, with no known medicinal value but recognized for their region specific traditional use, were evaluated. Here, the biological targets were enzymes of the antioxidant and xenobiotic defense mechanisms, with roles on inflammatory response. Materials and Methods: Cytotoxicity analyses were performed by using human promyelocytic (HL60) and chronic myelogenous leukemia (K562) cells for circulating models and breastadenocarcinoma (MCF7) cells for epithelial model to evaluate the non-toxic dose range of extracts by virtue of XTT and trypan blue. The target aimed effectiveness of these plants were determined with dose response profiles and IC50 values against glutathione peroxidase (GPX), glutathione transferase(GST),catalase (CAT) and superoxide dismutase (SOD) targets, as well as their capacity to reduce free radicals (DPPH) and non-radical hydrogen peroxide (H2O2). For standardization purposes, all extract concentrations were brought to 23.81 mg L-1 GAE and dilutions were made from these stocks. The IC50 values were determined by nonlinear regression analysis, with sigmoidal dose-response 4-parameter logistic equation. Results: The results showed that the best DPPH and H2O2 scavenging was observed with E ritro extracts. On the contrary, the best enzyme inhibition profile was observed with H europaeum against CAT, SOD, GPX and GST targets. Among the enzymes evaluated, all plants with different fractions also exerted strong GPX and CAT inhibition. Conclusion: The enzyme profiling of extracts may reveal the medicinal value of herbal remedies, by identifying their effects on cellular targets. In addition to define how reasonable the use of plants in traditional and complementary medicine (TCM) practices,these efforts may help to improve the standardized supplement preparations to benefit therapeutics with reduced efficiency due to inference with cellular defense and drug resistance enzymes, or both.