Scopus İndeksli Yayınlar Koleksiyonu

Permanent URI for this collectionhttps://hdl.handle.net/20.500.12416/8651

Browse

Now showing 1 - 20 of 143

Citation - Scopus: 5
About Fractional Calculus of Singular Lagrangians
(Institute of Electrical and Electronics Engineers Inc., 2004) Baleanu, D.; Baleanu, D.
In this paper the solutions of the fractional Euler-Lagrange equations corresponding to singular fractional Lagrangians were examined. Despite of the complexity of solutions in the fractional case the gauge classical symmetry was preserved. Four examples of fractional singular Lagrangians were analyzed in details. © 2004 IEEE.
Citation - WoS: 10
Citation - Scopus: 10
About Lagrangian Formulation of Classical Fields Within Riemann-Liouville Fractional Derivatives
(American Society of Mechanical Engineers, 2005) Baleanu, D.; Muslih, S.I.
Recently, an extension of the simplest fractional problem and the fractional variational problem of Lagrange was obtained by Agrawal. The first part of this study presents the fractional Lagrangian formulation of mechanical systems and introduce the Levy path integral. The second part is an extension to Agrawal's approach to classical fields with fractional derivatives. The classical fields with fractional derivatives are investigated by using the Lagrangian formulation. The case of the fractional Schrödinger equation is presented. Copyright © 2005 by ASME.
About Nanometer Sized Analogues of Basic Electronic and Optical Components
(Ieee, 2008) Quandt, A.; Özdoǧan, C.; Ferrari, M.; Speranza, G.
We discuss a downsizing of optical components into the nanometer range. It presupposes the substitution of photons by ballistic electrons, but it also requires a simple and robust concept to assemble the analogues of basic electronic and optical components on such a tiny length scale. Here, one of the most promising candidate schemes employs graphene as a basic nanosubstrate. We elucidate the suggested behaviour of graphene as an electronic metamaterial [1], and show that other desired electronic or optical functionalities may be obtained through a patterning with sub-nanometer sized boron clusters [2]. © 2008 IEEE.
Citation - Scopus: 2
About the Fn Approximation To Fractional Neutron Transport Equation in Slab Geometry
(Amer Soc Mechanical Engineers, 2011) Baleanu, D.; Kadem, A.
The neutron transport denotes the study of the motions and interactions of neutrons with materials. In given applications we need to know where neutrons are in an apparatus, what direction they are moving, and how fast they are going. In this manuscript the Legendre polynomial approximation method F N was applied to the one dimensional slab geometry neutron transport equation. © 2011 by ASME.
Citation - Scopus: 2
Analysis of Delay Factors for Voice Over Wimax
(Ieee, 2008) Safak, A.; Preveze, B.
This paper presents the results of our computer simulation for delays experienced by voice packets over WiMAX 802.16e protocol running over an enterprise packet network connected to public internet. In the simulation we analyzed the effect of packet size, core network link speed, internet service provider link speed, wireless network link speed, wireless distance, base station range, and distance in internet parameters that effect the amount of delay in a WiMAX embedded IP network. In this study, all the delay parameters are fixed to their default values and current parameter values are changed so that the delay is varied between minimum and maximum values in uniformly distributed 100 steps and the delay is plotted in each step. Total fixed delays can be considered as minimum delay and variable delay corresponds to the maximum delay that can occur under the given conditions. All other fixed and variable delay parameters such as switching delays, packetization delays, contention delays and the delays caused by buffers etc. are also taken into account. The results indicate that among these delays WiMAX base station range and the number of base stations play the most decisive role. © 2008 IEEE.
Andropov, Yuri Vladimirovich (1914-1984)
(Bloomsbury Publishing Plc., 2014) Karadelli, S.C.
Application of a Voting-Based Ensemble Method for Recognizing Seven Basic Emotions in Real-Time Webcam Video Images
(Institute of Electrical and Electronics Engineers Inc., 2024) Sanli, A.T.; Saran, M.
This study examines the automatic recognition of human emotions in real-time through facial expressions from webcams. Real-time emotion recognition is a crucial element in human-computer interaction and emotional computing. The study evaluates the effectiveness of various techniques in real-time facial emotion recognition using a custom CNN model, creating an ensemble with a voting mechanism, and integrating the system for real-time emotion recognition. The CNN model was trained on the FER2013 dataset, which consists of facial images labeled with different emotional states. It achieved a remarkable accuracy of 95%. In this study, we developed a dataset named ATS-FER2024, which consists of 184 images depicting seven distinct emotions. The tests conducted on this dataset yielded an accuracy rate of 89%. Despite its small size, the dataset's accuracy is noteworthy. The findings contribute to academic knowledge on developing emotion recognition systems, enhancing empathy, and creating context-sensitive interactions in real-world applications. © 2024 IEEE.
Citation - Scopus: 2
An Application of Data Mining and Knowledge Discovery Process in the Field of Natural Gas Exploration
(Institute of Electrical and Electronics Engineers Inc., 2014) Acar, M.A.; Tolun, M.R.; Elbaşi, E.
Natural gas exploration has been shifting significantly in the last decades with the progression of new ingenious technologies. However, such technologies generates large amount of data sets and handling of them create problems such as interpretation of data. To solve such problems Data Mining techniques could be used. This work includes the application procedure of Data Mining and Knowledge Discovery to Natural Gas Well Log data using a set of algorithms and a decent Data Mining tool. And the success of each algorithm in terms of the amount of useful rules is compared.
Application of Various Modelling Techniques Into Consumer Confidence Index
(CRC Press, 2025) Kalayci, B.; Purutçuoğlu, V.; Weber, G.W.; Uğur, Ö.; Defterli, Ö.
The principles of sentiment are presented by economic conditions such that most of the variance in consumer sentiment is caused by economic situations, either directly or indirectly. There are political and economic repercussions to investors’ economic optimism or pessimism. Customer expenditures and hence, the direction of the economy’s future are predicted by the degree of consumer confidence. Investors, who are in a similar way, are positioned economically, but, have different biased thoughts bringing forward quite different sentiments about the future of economics. © 2025 CRC Press.
Citation - Scopus: 2
Approaches on the Selection of Web Cameras and Calibration Targets for Stereo Vision
(Ieee, 2006) Eren, Haluk; Celik, Umit; Poyraz, Mustafa
In this paper, it is studied on the calibration by using specified web cameras. The performance of 3D computer vision depends on the accuracy of camera parameters. Therefore, camera calibration is very crucial in stereo vision. In this study, the options and selection of the target object that is used by the process of camera calibration are reviewed and evaluated some results obtained by web cameras. Webcams' costs are low relatively to the other digital consumer cameras but cannot be acquired a high resolution image.
Artificial Intelligence in Dentistry
(CRC Press, 2025) Cagiltay, Nergiz Ercil; Kılıçarslan, Mehmet Ali; Basmaci, Fulya
Today, with advanced technologies, collecting detailed and big data from the environment and analyzing it using intelligent techniques has become possible, providing important insights into phenomena as well as future predictions. Big data is characterized by its high volume, velocity, and variety. Here, the volume is the amount and size of the data, which is measured in terabytes, petabytes, exabytes, or zettabytes. Velocity is the offered form of big data, which can be batch, near-real-time, real-time, or streaming. Finally, variety is the structure of the big data, which can be structured, such as in relational or dimensional models, as in warehouses, or unstructured, which is stored without any organization. It can also be in semi-structured form, where the data is unstructured but there is some meta-data or some tags for describing the data. Today, these forms of data are being collected for different dental purposes in several formats, such as images, raw data, or coordinates. © 2025 Elsevier B.V., All rights reserved.
Citation - Scopus: 3
Autoregressive Models With Stochastic Design Variables and Nonnormal Innovations
(2011) Bayrak, O.T.; Akkaya, A.D.
In autoregression models the design variable has traditionally been assumed to be non-stochastic and innovations are normal. In most real life situations, however, the design variable is stochastic having a non-normal distribution as the innovations. Modified maximum likelihood method is utilized to estimate unknown parameters in such situations. Closed form estimators are obtained and shown to be efficient and robust.
AviBERT: Transformer Tabanlı Hava Aracı Metni Sınıflandırma
(Institute of Electrical and Electronics Engineers Inc., 2025) Ünal, Muhammed Cihat; Yurtalan, Gökhan; Karatas, Yahya Bahadır; Karamanlıoğlu, Alper; Demirel, Berkan
In recent years, transformer-based models pre-trained on extensive corpora have played a critical role in the advancement of Natural Language Processing methodologies. Particularly, methods based on BERT have demonstrated remarkable performance across various tasks by offering robust capabilities in deeply understanding texts semantically. However, despite these advancements, there is a notable scarcity of studies applying these technologies in the aviation sector. This paper develops a multi-class classification model for aviation-specific texts using variants of BERT. The study encompasses the processes of collecting web content related to aircraft, labeling and model training. The details of the dataset are explained and the outcomes of the study are assessed based on the macro F1-score and accuracy of different models. © 2025 Elsevier B.V., All rights reserved.
Beyond the Bully: Exploring the Surprising Performance-Related Outcomes of Abusive Supervision
(Nova Science Publishers, Inc., 2024) Tokat, T.; Çivit, S.; Göncü-Köse, A.
The common definitions of leadership include positive qualities such as vision, ethics, responsibility, respect, and trustworthiness. However, recent studies revealed an increase in unethical behaviors performed by organizational leaders, prompting academics to investigate the harmful types and impacts of leadership. One area of focus has been abusive supervision, which was found to have both positive and negative effects on organizational outcomes including subordinate and supervisor performance. While the harmful effects on subordinates have been a major focus in studies on abusive supervision, some scholars suggested that supervisors’ abusive behaviors may yield temporary functional results and be used as a strategy for leaders to improve work performance. To illustrate, researchers demonstrated the positive association between abusive supervision and work performance when subordinates attribute abusive behaviors to an effort to increase motivation rather than an intention to harm the employee (Li et al., 2022; Liao et al., 2021; Tepper et al., 2015). However, there is limited knowledge about these destructive behaviors’ impact on supervisors. One of these few studies showed that engaging in abusive supervisory behavior was positively correlated with supervisors’ recovery levels. Moreover, abusive supervisory behavior indirectly contributed to increased work engagement through its positive effect on the recovery level (Qin et al., 2018). The present chapter provides a comprehensive overview of the effects of abusive supervision on work performance, outlining both the negative and positive work-, employee-, and supervisor-related outcomes. Additionally, this chapter unfolds potential directions for future research regarding the relationships of abusive supervision with in-role and extra-role performance. Finally, we present practical recommendations for leaders and organizations to minimize the detrimental effects of abusive supervision. The literature findings will be presented in conjunction with various theoretical explanations, concepts, and propositions. © 2024 by Nova Science Publishers, Inc.
Board Structure and Sustainability Performance: a Study on Turkish Manufacturing Companies
(IGI Global, 2025) Aksu, A.; Şener, İ.; Kadir Varoğlu, A.
The adoption of the innovative perspective of Industry 5.0 at the highest level in organizations is important for ensuring sustainability in every field and the board of directors’ role becomes increasingly important in improving companies' sustainability performance. This chapter first presents the theoretical and conceptual background of Industry 5.0 and sustainability, the role of boards of directors in sustainability, and corporate sustainability reporting. Then, the findings of an empirical study that examine the impact of board structure on companies' sustainability performance are presented. The study aims to contribute by revealing which characteristics of companies’ boards of directors positively impact sustainability performances of the companies. The data from 166 manufacturing firms listed on Borsa Istanbul have been used in the research. Findings suggest that both the size of the board and the presence of women on the board have a positive impact on sustainability performance. © 2025 by IGI Global Scientific Publishing. All rights reserved.
Business Information Systems, Importance of Information, Business Intelligence, Corporate Excellence, and ICTs Within the Development of Organizations
(IGI Global, 2024) Gökmen, A.; Temiz, D.
An important shift takes places in organizations which is the shift in priorities to strategic management and increasing human demand for reliable information to run the business competitively in the global context. Nevertheless, executives and managers are exposed to a considerable amount of information which is both invaluable, as well as difficult to acquire, process, store, disseminate and utilize. Therefore, the objective of this study is to focus on the subjects as business information systems, information systems, business intelligence, corporate excellence, business intelligence, ICTs and other topics related to these issues in order to emphasize the importance of information and knowledge in the 21st century. © 2025 by IGI Global Scientific Publishing. All rights reserved.
Citation - WoS: 1
Citation - Scopus: 1
Cantor-Type Spherical-Coordinate Method for Differential Equations Within Local Fractional Derivatives
(de Gruyter Open Ltd, 2015) Rahmat, Mohamad Rah Segi; Baleanu, Dumitru; Yang, Xiao-Jun
In this article, we utilize the Cantor-type spherical coordinate method to investigate a family of local fractional differential operators on Cantor sets. Some examples are discussed to show the capability of this method for the damped wave, Helmholtz and heat conduction equations defined on Cantor sets. We show that it is a powerful tool to convert differential equations on Cantor sets from Cantorian-coordinate systems to Cantor-type spherical-coordinate systems.
Citation - Scopus: 1
Carrier Selection for Less-Than (Ltl) Shipments
(Elsevier, 2021) Konur, D.; Yıldırım, G.; Cesaret, B.
This chapter reviews the basics of carrier selection for less-than-truckload (LTL) shipments. First, the impacts of LTL carrier selection on various strategic, tactical, and operational supply chain planning decisions are discussed. Then, the key principles of LTL carriers and the key carrier attributes LTL shippers account for in their selection of LTL carriers are summarized. A numerical study using a continuous review inventory control model under stochastic demand is presented in order to demonstrate the effects of four key LTL carrier attributes (transit time, transit time variability, and freight minimums and maximums) on a shipper's cost and service level. © 2021 Elsevier Ltd. All rights reserved
Citation - Scopus: 1
The Causal Relationship Between Esg and Economic Growth: Evidence From the Panel of Commonwealth Independent States
(Springer International Publishing, 2024) Baskaraagac, N.Y.
This paper analyzes the causal relationship between ESG and economic growth for CIS member states over the sample period 1996–2020. Since the results of the varied panel stationarity tests suggest mixed findings on the order of integration, the ARDL model is employed to determine the co-integration relation among the series. The result of the VEC model, which is estimated to explore the long-run and short-run dynamics of this casual relation between the series in a basic way, suggests that there is a causal relationship running from income level to ESG criteria. This implies that the adaptation of macroeconomic policies which will stimulate the economic growth process in CIS countries may also encourage the ESG indicator levels of the economy. © The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Switzerland AG 2024.
Citation - WoS: 6
Citation - Scopus: 7
Chemometric Methods for the Simultaneous Spectrophotometnc Determination of Telmisartan and Hydrochlorotiazide in the Commercial Pharmaceuticals
(SYSCOM 18 S.R.L., 2009) Beliz, K.; Dinç, E.; Baleanu, D.
Simultaneous spectrophotometric determination of telmisartan (TEL) and hydrochlorothiazide (HCT) in two different commercial pharmaceutical preparations were performed by using three different chemometric methods, namely principal component regression (PCR), partial least squares (PLS) and artificial neural network (ANN). The proposed chemometric methods do not require chemical seperation and spectral graphical procedures for the quantitative resolution of mixtures containing the titled compounds. In the preparation of chemometric calibrations, a concentration set of 45 synthetic mixtures containing TEL and HCT in the linear concentration range of 1.0-26.0 and 7.0-7 7.0 pglmL, respectively was simetrically prepared in methanol. The spectra of the above concentration set and samples were recorded in the spectral range of 200-350 nm. Concentration set and its corresponding absorbances in the selected spectral range corresponding to the 250350 nm wavelength range was used to obtain PCR, PLS and ANN calibrations. Recovery study, intra-day, inter-day and standard addition technique were considered as method validation. Three proposed chemometric approaches were sucessfully applied to the quantitative analysis of two different commercial pharmaceutical products.

Browse

Browsing Scopus İndeksli Yayınlar Koleksiyonu by Scopus Q "N/A"