Sürdürülebilir Kalkınma Amaçları
Yazarlar
- Ashyralyyev, Charyyar(18)
- Ashyralyev, A.(15)
- Dogan, Ramazan Ozgur(15)
- Ashyralyev, A(10)
- Ekinci, Murat(9)
- Lukashov, A.(9)
- Kayikçioglu, Temel(8)
- Malkowsky, E(8)
- Özden, Talat(8)
- Akinoglu, Bulent G.(7)
- Memetoglu, M. E.(7)
- Albayrak, Cenk(6)
- Ashyralyev, Allaberen(6)
- Cakir, Zafer(6)
- Dogan, Hulya(6)
- Kayikcioglu, Temel(6)
- Bingol, Ozkan(5)
- Bingöl, Ozkan(5)
- Cakalli, H.(5)
- Canak, I.(5)
- Demir, S.(5)
- Gedikli, Eyup(5)
- Gurtug, O.(5)
- Harte, R.(5)
- Kalkan, A.(5)
- Kandemir, H.S.(5)
- Kocinac, L.D.R.(5)
- Ozden, Talat(5)
- Ozsahin, M(5)
- Sadybekov, M.(5)
- Sahin, H.(5)
- Simsek, Cemaleddin(5)
- Tez, M.(5)
- Turan, I.(5)
- Yildirim, Omer(5)
- Çakmak, Recep(5)
- Akay, K.U.(4)
- Akpulat, Murat(4)
- Aliyazicioglu, Y.(4)
- Altas, Ismail H.(4)
Yayınlar
- BildiriAçık Erişim2015Nonlinear Motion Control of a Column Using a Coupled Gyroscope
Ünker, F.; Çuvalci, O.; Sener, S; Saridogan, E; Staub, S
In this paper, a system of the gyroscopes coupled via the massless torsional springs and the massless torsional dampers mounted on the tip mass of a column subjected to a vibrating base is considered. The coupled gyroscopes are assumed to have reverse angular speeds, and the rotations to eliminate the torques due to the springs and the dampers. Taking advantage of the angular momentum of the rotating gyroscope, gyrostabilizer systems are expected to become more widely actualized as they provide an effective means of motion control with several significant advantages for various structures. The non-linear motions of the gyro-column system and the equations of motion for the system are derived following energy (Lagrange) based approaches and examples provided. On the other hand, the effect of the angular velocities of the gyroscopes are studied, and it is shown that the angular velocity (spin velocity) of a gyroscope has a significant effect on the behavior of the dynamic motion. It is also shown how the dampers and springs due to the motion between the suporting gimbals influence the dynamic behavior of the column. (C) 2015 The Authors. Published by Elsevier Ltd.
AtıfWoS1OpenAlex1
İncele - BildiriAçık Erişim2015Seismic Motion Control of a Column Using a Gyroscope
Ünker, F.; Çuvalci, O.; Sener, S; Saridogan, E; Staub, S
Taking advantage of the angular momentum of the rotating gyroscope, gyrostabilizer systems are expected to become more widely actualized as they provide an effective means of motion control with several significant advantages for various structures. In this paper, a symmetric gyro with coupling to the tip mass of a column mounted on a vibrating base is considered. The non-linear motions of the gyro-column system and the equations of motion for the system are derived following energy (Lagrange) based approaches and examples provided. On the other hand, the effect of the angular velocity of the gyroscope is studied, and it is shown that the angular velocity (spin velocity) Omega of gyroscope has a significant effect on the behavior of the dynamic motion. It is also shown how the damper and spring due to the motion between the suporting gimbal and tip mass influence the dynamic behavior of the gyroscope. It was concluded that the numerical investigations of this combined system has not been investigated up to the present time. (C) 2015 The Authors. Published by Elsevier Ltd.
AtıfWoS3OpenAlex9İncele - BildiriYalnız künye2015Virtual Mouse Control with Hand Gesture Information Extraction and Tracking
Dogan, Ramazan Ozgur; Dogan, Hulya; Köse, Cemal
Virtual mouse implemented with hand gesture tracking based on image is one of studies in human-computer interaction. In this study that human-computer interaction is implemented with virtual mouse is purposed. This study consists of three main steps that are hand gesture tracking, features of hand region extraction and classification of these features. In this study hand gesture tracking is generated with Camshift (Continuously Adaptive Mean Shift) algorithm, features of hand gestures are extracted with bag of visual words and these features are classified with support vector machines. Detailed tests are performed to compare success of tracking, features extraction and classisfication methods and that this system works successfully is shown.
AtıfWoS1İncele - BildiriYalnız künye2015Health-Monitoring System based Tele-tip for Elders
Yildirim, Omer; Özgur, Ramazan; Kaya, Ismail; Kayikçioglu, Temel
Nowadays, developments in the medicine continue fastly. Technological devices developed on the basic of these developments are usually complex and its use isn't easy. In our studies, considering this situation, a wireless system which is used easyly by older adults is improved. Thanks to this system, patient's blood oxygen saturation, blood glucose, blood pressure and body weight values can be monitored remotely and easyly by their doctors. In addition, all of the patients' medical data are saved by server and their doctors can reach patients' medical history data. When all of these operations are in progress, there are wireless devices that are easy to use patient's side.
- BildiriYalnız künye2015Detection of Copy-Move Forgery Using DoGCode
Türk, Salih; Bingöl, Ozkan; Ulutas, Guzin
Copy-move forgery is performed as a part of an image is copied and moved to another region within the same image. For the detection of this type of forgery, usually, feature vectors of the image are created by dividing the image into sub-blocks. Then the feature vector of the region is compared with other regions in the image to reach a conclusion if they are matched. In this study, to determine the copy-move forgery, DoG Coding technique which is more resistant to changes in image brightness is used. Coded new image is formed with the help of this technique often preferred in the palmprint recognition systems and features are determined by dividing the image into sub-blocks. Block based region growing segmentation method have been developed to determine the size of the copied region. Proposed this new approach has been successfully applied on images in the CoMoFod dataset prepared by different scenarios.
- BildiriAçık Erişim2015Vibration Control of a Column Using a Gyroscope
Ünker, F.; Çuvalci, O.; Sener, S; Saridogan, E; Staub, S
In this paper, the characteristics of a vibration control system utilizing a gyro and its effectiveness in the control of the motion subjected to a seismic ground motion acceleration were studied. Lambda gyro design was presented as a vibration absorber for reduction of the column vibration, which has a potential for application to towers, high-rise buildings and other structures. The non-linear motions of the gyro-column system and the equations of motion for the system are derived following energy (Lagrange) based approaches and examples provided. On the other hand, the effect of the angular velocity of the gyroscope is studied, and it is shown that the angular velocity (spin velocity) Omega of gyroscope has a significant effect on the behavior of the dynamic motion. It is also shown how the damper and spring due to the motion between the suporting gimbal and tip mass influence the dynamic behavior of the gyroscope. (C) 2015 The Authors. Published by Elsevier Ltd.
AtıfWoS5İncele - BildiriYalnız künye2015Determination of the amplitude values with Nakamura (H/V) method and standard spectral ratio (Ssr) method at Ktu Campus
Beker, Y.B.; Sayil, N.; Akin, Ö.
Microtremor method used for engineering seismology is very important for determining of dynamic ground parameters and its variations. Method based on frequency of horizontal and vertical component microtremor records provides to quick and economical estimation of dynamic ground parameters. In this study, Nakamura (H/V) method and Standard Spectral Ratio (SSR) method have been applied to microtremor records taken with CMG-6TD three component broad band velocity seismometers in six profile with the aim of determining ground amplification of Karadeniz Technical University Campus area. The amplification maps of the study area are generated to the results of Nakamura (H/V) method and Standard Spectral Ratio (SSR) method and the results have been compared.
- BildiriYalnız künye2015Investigating the geophysical characteristics of gypsum through GPR
Sari, M.S.; Bektaş, Ö.B.
Gypsum crops out widely in the areas where the urbanization is intense in Sivas city center. In this study, in an appropriate selected area, geophysical characteristics and structure of gypsum have been investigated by applying geophysical methods of GPR (Ground Penetrating Radar). GPR measurements have been taken as 11 profiles with a Ramac GPR device by using 250 MHz shield-antenna. The distance between each profile has been taken as 2m and the length of each profile has been taken as 50m. All the area has been surveyed and ground radar sections have been obtained by GPR method. Gathering all the data, it has been found out that the areas with strong reflections (for the first 5m. depth) revealed in ground radar sections are not homogeneous massive gypsum bodies as presented in geological studies and contain different size and position fill material (clastic material). In addition, investigating such areas through GPR method has enabled to reveal the geophysical characteristics of the region as gypsum contains fractures-cracks, fillings and dissolution spaces.
- BildiriYalnız künye2015Scopus SJRQ4Antioxidant activity and total phenolic content of bergamot (citrus bergamia risso) fruits
Ercisli, Sezai; Uzun, Aydin; Yilmaz, Kadir Ugurtan; Sengul, Memnune; Yildiz, Hilal; Uysal, Onur; SabaterMunoz, B; Moreno, P; Pena, L; Navarro, L
Bergamot extract is used to obtain fragrant tea (Earl Grey) and also its rind is used to make some jams. Calcium citrate and citric acid can be obtained from bergamot juice. In the study, antioxidant and total phenolic content of bergamot juice were determined. Two methods, namely β-carotene bleaching and DPPH assay were used to determine total antioxidant capacity, while Folin-Ciocalteu reagent was used to determine total phenols. Results showed that bergamot had high total phenolic (80.06 μg GAE/mg DW) and also high total antioxidant capacity with β-carotene bleaching (60.12%) and with DPPH (180 mg/100 ml). The study demonstrates the nutritional potential of bergamot juice.
AtıfScopus1WoS2OpenAlex1
İncele - BildiriYalnız künye2015Well-posedness of a fourth order of accuracy difference scheme for the Neumann type overdetermined elliptic problem
Ashyralyyev, Charyyar; Lukashov, A.; Ashyralyev, A.; Malkowsky, E.; Basar, F.
In the present paper, inverse elliptic problem with Neumann type overdetermination is discussed. A fourth order of accuracy difference scheme for the solution of this identification problem is presented. Stability, almost coercive stability and coercive inequalities for the solution of difference problem are obtained. In application, a fourth order approximation of the inverse problem for multidimensional elliptic equation with Neumann type overdetermination and Dirichlet boundary condition is studied.
AtıfScopus3WoS3OpenAlex3İncele - BildiriYalnız künye2015Spatial variations of seismotectonic b and Dc-values in and around the East Anatolian Fault Zone (EAFZ), Turkey
Öztürk, S.; Sari, M.
An evaluation of recent seismicity behaviors in the East Anatolian Fault Zone, eastern part of Turkey, is made by using Gutenberg-Richter b-value and fractal dimension Dc-value. Reasenberg's algorithm is used in order to separate the dependent events from independent ones. The completeness magnitude in study region is calculated as 2.8. b-value is calculated as 1.02+/-0.01 by maximum likelihood estimation and matches the Gutenberg-Richter law with a b-value typically close to 1. Dc-value is found as 2.34+/-0.04 with 95% confidence limit by linear regression and this large value suggest that seismicity is more clustered at larger scales in the East Anatolian Fault Zone. The smallest b-values and the highest Dc-values are found in the same areas covering the East Anatolian Fault Zone, Aşkale Fault, Sancak-Uzunpinar Fault Zone, Pülümür Fault, Göynük Fault Zone and Genç Fault, in and around Karataş-Osmaniye Fault Zone and in the southeast part of the study region. Thus, low b-value in these regions may be an indication of low degree of heterogeneity, high-strain due to the active tectonics and stress to build up over time and to be released by events. Thus, special attention should be given to these regions where low b-value and large Dc-value are observed.
- BildiriAçık Erişim2015Convergence in local press
Tingoy, Ozhan; Isikli, Sevki; Gumushane, Ali Ozcan
Improvements in information and communication technologies have evolved the way of traditional broadcasting. This evolvement is currently being experienced in press, eliminating the specific and clear lines of every kind of medium. Changing news production/distribution process as well as readers' consumption tendencies have brought up some kind of negative presumptions related with the future of press. Taken into consideration on the level of widespread newspapers, this evolvement is siginificant in respect of the future of local newspapers which count around 1400 in Turkey, trying to survive financial reasons. Fullfilling the evolvement triggered by information and communication technologies successfully, local newspapers are now expected to fulfill their alternative journalism mission against global media contents with the help of new media environment.
- BildiriYalnız künye2014COMPUTER MONITORING AND CONTROL WITH HAND MOVEMENTS
Dogan, Ramazan Ozgur; Köse, Cemal
The devices such as mouse, keyboard used for controlling of computer have various limitations. The users must make physical contact with the devices and have a restricted away because of connection with wire to control computer by using these devices. Traditional communication devices for computer-person can't provide user wireless computer control without any physical. Inthis study, Computer monitoring and controlling with hand movements are implemented by using image proccesing and computer vision techniques to minimize these limitations. In proposed study, firstly it is expected that the user enters camera's field of view using computer camera. face of user entering the camera's field of view is detected with Haar Classifier. Hand region is detected by finding the dynamic range of skin color in YCbCr color space from the facial region. The hand region is tracked with Biggest Blob Tracking Technique, and features of hand are extracted by using Convexity Defect-Hull during tracking. Finally, position of mouse is controlled according to features of hand region, and Computer monitoring and controlling with hand movements are implemented bu tracking hand gestures.
AtıfWoS3İncele - BildiriYalnız künye2014A Linear Signal Combination Model for UWB Applications
Oguz, Yasin; Kaya, Haydar
Systems that use UWB technology based on communication with baseband signals of very short duration recently attract attention in communication and radar application, and thereof have been improving rapidly. Because UWB signals occupy a spectrum that is spread about very wide frequency band, one of the principal issues that need to be considered in UWB applications is the frequency allocation. In order to minimize or prevent possible distorting interferences with existing communication systems, spectral distribution of mandatory EIRP limit values has been determined by FCC in UWB applications. In this study, a linear signal combination model has been established and on mathematical expressions have been provided for production of wave forms are suitable UWB emission mask specified by FCC.
AtıfWoS2İncele - BildiriAçık Erişim2014The Soft Element of Strategic Human Resource Management: The Employee's Perception of Diversity Climate
Sezerel, Hakan; Tonus, H. Zumrut; Ozsahin, M
Workforce diversity imposes itself as an imperative for organizations. Hence, today's organizations distinguish the diversified workforce as a tool to leverage business opportunities. In order to acquire a competitive advantage from human resources, diversity management comes to the front for all organizations. Managing diversity successfully requires a proper diversity climate for employees in all levels of organizations. This study reports the findings of a research study on the diversity climate among employees of a hotel chain. Both the t-test and one way ANOVA tests predict the perception of employees. The results show that diversity perceptions of employees predominantly depend on managerial status. (C) 2014 The Authors. Published by Elsevier Ltd.
AtıfWoS5OpenAlex9İncele - BildiriAçık Erişim2014Mark Ravenhill's some explicit polaroids: a play as the reverberation of consumerist culture
Dogan, Caglayan; Cubukcu, F
Some Explicit Polaroids is one of the most sensational plays reflects consumerist culture of 2000s twentysometings is described as controversial. Some Explicit Polaroids is a political criticism on the confrontation of the two generations and reflects consumerist tenets, which hold values of globalisation. This study tries to prove that Ravenhill's work is totally reflection of the logic of consumerism and post-consumerism in terms of contemporary British society that is subjected to contemporary plays mostly. This study particularly unveils the perception of consumerist culture that is embodied within the scope of Ravenhill's perspective on British society; therefore, it aims to shed some light the globalised and cruelly capitalised world. The beginning of this study discusses the ongoing understanding of theatre and its representative perspectives after nasty nineties, as well as the social, economic, and political processes that led to the arrival of In-Yer-Face Theatre. Additionally, Mark Ravenhill's theatre aesthetic and his contributions towards contemporary British Theatre are briefly revealed. In this study, the evaluations written on consumerism and globalization are dealt with according to their resonances in the play. (C) 2015 The Authors. Published by Elsevier Ltd.
AtıfWoS1İncele - BildiriYalnız künye2014Scopus SJRQ2The effectiveness of the black mulberry molasses in prevention of radiotherapy-induced mucositis: a randomised controlled study in head and neck cancer patients
Demir, M.; Can, G.; Meral, R.
AtıfOpenAlex2İncele - BildiriAçık Erişim2014Scopus SJRQ3Suggestion of new formulations for schmidt hammer and UPV test methods for concrete
Cavdar, A.; Bingöl, S.
The concrete is the most widely used building material in Turkey. Especially reinforced concrete dominates at building sector. Because of concrete is an non-homogeneous and non-isotropic material, the strength of concrete cannot be accurately achieved at the site. To control the mechanical properties of concrete in the site, non- -destructive test methods can be used. They are useful for having no damage on concrete, however these test results sometimes gives deceptive results. In this study, two of non-destructive test methods, Schmidt hammer testing and ultrasonic pulse velocity methods were used for determining concrete compressive strength. 101 samples were poured concrete cube dimensions 150×150×150 mm3. On 28th days, firstly, the samples were applied Schmidt hammer test and ultrasonic pulse velocity test and then the compressive strength of these samples was measured by breaking in the press, destructive method. Thus, the new formulations are obtained for Schmidt hammer test and ultrasonic pulse velocity test.
AtıfScopus4WoS3OpenAlex3İncele - BildiriYalnız künye2014Effects of discretization schemes on numerical results of natural convection heat transfer
Sahin, Birol; Ashyralyev, A; Malkowsky, E
Two dimensional natural convection heat transfer in a square enclosure is numerically analyzed. Laminar naturalconvection heat transfer is studied by solving the Navier-Stokes and energy equations using finite volume method. Numerical solutions of flow field are obtained by Semi-Implicit Method for Pressure-Linked Equations (SIMPLE). Effects of the discretization schemes on numerical solutions are compared with each other.
- BildiriYalnız künye2014Weyl numbers of diagonal matrices
Ismailov, Zameddin I.; Cona, Lale; Çevik, Elif Otkun; Guler, Bahadir O.; Ashyralyev, A; Malkowsky, E
In this work, a connection between Weyl numbers of the infinite diagonal matrix with linear bounded operator elements in the direct sum of Banach spaces and its coordinate operators has been investigated.
AtıfScopus1OpenAlex2İncele