Nazlıbilek, Sedat

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https://hdl.handle.net/20.500.14411/8361
Name Variants
S.,Nazlibilek
N., Sedat
Nazlıbilek,S.
Sedat, Nazlıbilek
N.,Sedat
Nazlibilek,S.
S., Nazlibilek
S.,Nazlıbilek
Sedat, Nazlibilek
Nazlıbilek, Sedat
Nazlibilek, Sedat
Job Title
Doçent Doktor
Email Address
Main Affiliation
Department of Mechatronics Engineering
Status
Former Staff
Website
ORCID ID
Scopus Author ID
Turkish CoHE Profile ID
Google Scholar ID
WoS Researcher ID

Sustainable Development Goals

NO POVERTY1
NO POVERTY
0
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ZERO HUNGER2
ZERO HUNGER
0
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GOOD HEALTH AND WELL-BEING3
GOOD HEALTH AND WELL-BEING
1
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QUALITY EDUCATION4
QUALITY EDUCATION
0
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GENDER EQUALITY5
GENDER EQUALITY
0
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CLEAN WATER AND SANITATION6
CLEAN WATER AND SANITATION
0
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AFFORDABLE AND CLEAN ENERGY7
AFFORDABLE AND CLEAN ENERGY
1
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DECENT WORK AND ECONOMIC GROWTH8
DECENT WORK AND ECONOMIC GROWTH
0
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INDUSTRY, INNOVATION AND INFRASTRUCTURE9
INDUSTRY, INNOVATION AND INFRASTRUCTURE
0
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REDUCED INEQUALITIES10
REDUCED INEQUALITIES
0
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SUSTAINABLE CITIES AND COMMUNITIES11
SUSTAINABLE CITIES AND COMMUNITIES
1
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RESPONSIBLE CONSUMPTION AND PRODUCTION12
RESPONSIBLE CONSUMPTION AND PRODUCTION
0
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CLIMATE ACTION13
CLIMATE ACTION
0
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LIFE BELOW WATER14
LIFE BELOW WATER
2
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LIFE ON LAND15
LIFE ON LAND
0
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PEACE, JUSTICE AND STRONG INSTITUTIONS16
PEACE, JUSTICE AND STRONG INSTITUTIONS
0
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PARTNERSHIPS FOR THE GOALS17
PARTNERSHIPS FOR THE GOALS
1
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This researcher does not have a Scopus ID.
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Scholarly Output

22

Articles

14

Views / Downloads

88/720

Supervised MSc Theses

3

Supervised PhD Theses

3

WoS Citation Count

245

Scopus Citation Count

302

Patents

0

Projects

0

WoS Citations per Publication

11.14

Scopus Citations per Publication

13.73

Open Access Source

1

Supervised Theses

6

JournalCount
Measurement7
Indian Journal of Pure and Applied Physics2
IEEE Transactions on Instrumentation and Measurement2
20th Annual International Conference on Mechatronics and Machine Vision in Practice, M2VIP 2013 -- 20th Annual International Conference on Mechatronics and Machine Vision in Practice, M2VIP 2013 -- 20 September 2013 through 20 September 2013 -- Ankara -- 1022761
International Conference of Control, Dynamic Systems, and Robotics -- 4th International Conference of Control, Dynamic Systems, and Robotics, CDSR 2017 -- 21 August 2017 through 23 August 2017 -- Toronto -- 1399181
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Scholarly Output Search Results

Now showing 1 - 10 of 22
  • Thumbnail Image
    Article
    Citation - WoS: 10
    Citation - Scopus: 12
    Anomaly Detection With Low Magnetic Flux: a Fluxgate Sensor Network Application
    (Elsevier Sci Ltd, 2016) Ege, Yavuz; Coramik, Mustafa; Kabadayi, Murat; Citak, Hakan; Kalender, Osman; Yuruklu, Emrah; Nazlibilek, Sedat
    Recent studies on remote detection methods were mostly for improving variables like sensing distance, sensitivity and power consumption. Especially using anisotropic magneto-resistive sensors with low power consumption and high sensitivity for detecting subsurface magnetic materials became very popular in last decades. In our study, for detecting subsurface materials, we have used fluxgate sensor network for having even higher sensitivity and also minimizing the power consumption by detecting the changing rates of horizontal component of earth's magnetic flux which is assumed to be very low. We have constituted a magnetic measurement system which comprises a detector system, which has a mechanism enables sensors to move in 3-D space, a data acquisition module for processing and sending all sensor information, and a computer for running the magnetic flux data evaluation and recording software. Using this system, tests are carried out to detect anomalies on horizontal component of earth's magnetic flux which is created by different subsurface materials with known magnetic, chemical and geometric properties. The harmonics of horizontal component of earth's magnetic flux in scanned area are analyzed by the help of DSP Lock-In amplifier and the amplitudes of high variation harmonics are shown as computer graphics. Using the graphic information, the upside surface geometry of subsurface material is defined. For identifying the magnetic anomalies, we have used the scale-invariant feature transform (SIFT)-binary robust invariant scalable keypoints (BRISKs) as keypoint and descriptor. We used an algorithm for matching the newly scanned image to the closest image in database which is constituted of mines and possible other metal objects like cans, etc. Results show that, if the proposed detection system is used instead of metal detectors which cannot distinguish mines from other metal materials and alert for every type of metal with different geometries, it can be said that miss alarm count, work force and time can be decreased dramatically. In this paper, mostly the setup of the system is described and in Appendix A some experimental outputs of the system for different geometries of metal samples are given. And also for comparing the results of the proposed system, additional experiments are carried out with a different type of sensor chip, namely KMZ51, and also given in Appendix A. (C) 2015 Elsevier Ltd. All rights reserved.
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    Article
    Citation - WoS: 1
    Citation - Scopus: 1
    Autonomous Multiple Teams Establishment for Mobile Sensor Networks by Svms Within a Potential Field
    (Elsevier Sci Ltd, 2012) Nazlibilek, Sedat
    In this work, a new method and algorithm for autonomous teams establishment with mobile sensor network units by SVMs based on task allocations within a potential field is proposed. The sensor network deployed into the environment using the algorithm is composed of robot units with sensing capability of magnetic anomaly of the earth. A new algorithm is developed for task assignment. It is based on the optimization of weights between robots and tasks. The weights are composed of skill ratings of the robots and priorities of the tasks. Multiple teams of mobile units are established in a local area based on these mission vectors. A mission vector is the genetic and gained background information of the mobile units. The genetic background is the inherent structure of their knowledge base in a vector form but it can be dynamically updated with the information gained later on by experience. The mission is performed in a magnetic anomaly environment. The initial values of the mission vectors are loaded by the task assignment algorithm. The mission vectors are updated at the beginning of each sampling period of the motion. Then the teams of robots are created by the support vector machines. A linear optimal hyperplane is calculated by the use of SVM algorithm during training period. Then the robots are classified as teams by use of SVM mechanism embedded in the robots. The support vector machines are implemented in the robots by ordinary op-amps and basic logical gates. Team establishment is tested by simulations and a practical test-bed. Both simulations and the actual operation of the system prove that the system functions satisfactorily. (C) 2012 Elsevier Ltd. All rights reserved.
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    Article
    Citation - WoS: 2
    Citation - Scopus: 2
    Optimization of Parameters Acting on a Projectile Velocity Within a Four Stage Induction Coil-Gun
    (Elsevier Sci Ltd, 2010) Coskun, Ismail; Kalender, Osman; Ege, Yavuz; Nazlibilek, Sedat; Cokun, Ismail
    In this work, a four stage induction coil-gun has been designed and the parameters acting on the bullet velocity has been investigated. The mutual inductance variation depending on the bullet coil position, determination of firing point exposed to the maximum force with respect to the length, and appropriate material selection for the bullet coil have been analyzed. Optimum solutions for these parameters have been presented. (C) 2010 Elsevier Ltd. All rights reserved.
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    Doctoral Thesis
    Modern Denetim Yaklaşımları Kullanan Tek Makinalı Sonsuz Büs Sistemi için Gürbüz Güç Sistemi Kararlılaştırıcı
    (2019) Alı, Issa Yousf Saıd; İrfanoğlu, Bülent; İrfanoğlu, Bülent; İrfanoğlu, Bülent; Nazlıbilek, Sedat; Department of Mechatronics Engineering; Department of Mechatronics Engineering
    Elektriğe olan talebin hızla artması nedeniyle, günümüzde güç sistemleri çeşitli kararsızlık sorunlarına neden olan ve potansiyel olarak ciddi teknik zorluklara yol açan kararlılık sınırları yakınında çalıştırılmaktadır. Konvansiyonel Güç Sistemi Kararlaştırıcıları (KGSK) güç sistemlerinde en yaygın kullanılan denetleyiciler olduğu için, konvansiyonel güç sistem kararlaştırıcılarının performansını artırmak için son yıllarda Genetik algoritmalar, bulanık mantık, partikül sürüsü gibi bazı akıllı optimizasyon algoritmaları kullanan pek çok teknik önerilmiştir. Ancak, kararlılaştırıcı parametrelerinin optimal bir şekilde ayarlanması vasıtasıyla tatminkar bir derecede yerel optimizasyon sağlanabilmiş olmasına rağmen, kararlılaştırıcıların gürbüzlüğü halen kuşkuludur ve çalışma noktası değişiklikleri ve bazı beklenmeyen bozucu etkiler vukuu bulduğunda iyi bir performans garanti etmeyebilmektedir. Bu tezde sistemin dinamik kararlılığının artırılması için güç sisteminde modern gürbüz denetim stratejilerinin iki türünün bir uygulaması sunulmaktadır. Bu iki tür denetim stratejisi Aktif Bozulum Dışlama Denetimi (ABDD) ile Geribesleme Hata Öğrenme Denetimi (GHÖ)'dir. İlk önerilen denetleyici olan ABDD algoritması, bu tür sistemlerde yaygın olarak karşılaşılan sorun yaratıcı bozucu etkilere karşı güç sistemini daha gürbüz kılan bir üstünlüğe sahiptir. ABDD yaklaşımının en önemli özelliği, bazı şartlar altında sistem modeli hakkında çok az bir bilgi gerektirmesidir. Gürbüz bir denetleyici tasarımlamak için açık döngü transfer fonksiyonuna ait bir bilgi oldukça yeterli olmaktadır. İkinci denetleyici olan GHÖ sistemin dinamik kararlılığını artırmak için geribesleme hata öğrenme denetim stratejisi çerçevesinde Yapay sinir Ağı (YSA) teknolojisi kullanan bir denetleyicidir. Konvansiyonel güç sistem kararlılaştırıcısı ile sinir ağını birleştiren GHÖ denetleyicisinin yapısal konfigürasyonunun doğası, onu, yapay sinir ağlarının adaptasyon ve doğrusalsızlık gibi ilave özellikleriyle birlikte, KGSK'nın iyi bilinen avantajlarını içeren güçlü bir denetleyici kılar. Bu tez çalışmasında önerilen ABDD ve GHÖ denetleyicileri küçük bozulmalar altında harici bir reaktans üzerinden Sonsuz Büs'e bağlı Senkron Makinadan ibaret bir güç sistemi için geliştirilmiştir. Hem ABDD ve hem de GHÖ'nün etkinlikleri her ikisinin de optimal olarak akordlu konvansiyonel güç sistem kararlaştırıcı ile kıyaslanmasıyla doğrulanmıştır. Ayrıca, bu kıyaslama önerilen ABDD ve GHÖ denetim stratejilerinin geniş bir çalışma koşulu aralığında yapılmıştır. Tüm testler ve durum çalışmaları Matlab®Simulink® ortamında icra edilmiştir. Simülasyon sonuçları önerilen denetim yöntemlerinin farklı yüklenme koşulları varlığında özellikle de konvansiyonel kararlaştırıcıların başarısız kaldığı bazı kritik çalışma noktalarında sistem kararlılığı ve yüksek performans sağladıklarını göstermiştir.
  • Thumbnail Image
    Article
    Citation - WoS: 8
    Citation - Scopus: 13
    White Blood Cells Classifications by SURF Image Matching, PCA and Dendrogram
    (Allied Acad, 2015) Nazlibilek, Sedat; Karacor, Deniz; Erturk, Korhan Levent; Sengul, Gokhan; Ercan, Tuncay; Aliew, Fuad; Department of Mechatronics Engineering; Information Systems Engineering; Computer Engineering
    Determination and classification of white blood cells are very important for diagnosing many diseases. The number of white blood cells and morphological changes or blasts of them provide valuable information for the positive results of the diseases such as Acute Lymphocytic Leucomia (ALL). Recognition and classification of white cells as basophils, lymphocytes, neutrophils, monocytes and eosinophils also give additional information for the diagnosis of many diseases. We are developing an automatic process for counting, size determination and classification of white blood cells. In this paper, we give the results of the classification process for which we experienced a study with hundreds of images of white blood cells. This process will help to diagnose especially ALL disease in a fast and automatic way. Three methods are used for classification of five types of white blood cells. The first one is a new algorithm utilizing image matching for classification that is called the Speed-Up Robust Feature detector (SURF). The second one is the PCA that gives the advantage of dimension reduction. The third is the classification tree called dendrogram following the PCA. Satisfactory results are obtained by two techniques.
  • Thumbnail Image
    Article
    Citation - WoS: 128
    Citation - Scopus: 163
    Automatic Segmentation, Counting, Size Determination and Classification of White Blood Cells
    (Elsevier Sci Ltd, 2014) Nazlibilek, Sedat; Karacor, Deniz; Ercan, Tuncay; Sazli, Murat Husnu; Kalender, Osman; Ege, Yavuz
    The counts, the so-called differential counts, and sizes of different types of white blood cells provide invaluable information to evaluate a wide range of important hematic pathologies from infections to leukemia. Today, the diagnosis of diseases can still be achieved mainly by manual techniques. However, this traditional method is very tedious and time-consuming. The accuracy of it depends on the operator's expertise. There are laser based cytometers used in laboratories. These advanced devices are costly and requires accurate hardware calibration. They also use actual blood samples. Thus there is always a need for a cost effective and robust automated system. The proposed system in this paper automatically counts the white blood cells, determine their sizes accurately and classifies them into five types such as basophil, lymphocyte, neutrophil, monocyte and eosinophil. The aim of the system is to help for diagnosing diseases. In our work, a new and completely automatic counting, segmentation and classification process is developed. The outputs of the system are the number of white blood cells, their sizes and types. (C) 2014 Elsevier Ltd. All rights reserved.
  • Thumbnail Image
    Article
    Citation - WoS: 19
    Citation - Scopus: 19
    Identification of Materials With Magnetic Characteristics by Neural Networks
    (Elsevier Sci Ltd, 2012) Nazlibilek, Sedat; Ege, Yavuz; Kalender, Osman; Sensoy, Mehmet Gokhan; Karacor, Deniz; Sazh, Murat Husnu; Sazli, Murat Hüsn
    In industry, there is a need for remote sensing and autonomous method for the identification of the ferromagnetic materials used. The system is desired to have the characteristics of improved accuracy and low power consumption. It must also autonomous and fast enough for the decision. In this work, the details of inaccurate and low power remote sensing mechanism and autonomous identification system are given. The remote sensing mechanism utilizes KMZ51 anisotropic magneto-resistive sensor with high sensitivity and low power consumption. The images and most appropriate mathematical curves and formulas for the magnetic anomalies created by the magnetic materials are obtained by 2-D motion of the sensor over the material. The contribution of the paper is the use of the images obtained by the measurement of the perpendicular component of the Earth magnetic field that is a new method for the purpose of identification of an unknown magnetic material. The identification system is based on two kinds of neural network structures. The MultiLayer Perceptron (MLP) and the Radial Basis Function (RBF) network types are used for training of the neural networks. In this work, 23 different materials such as SAE/AISI 1030, 1035, 1040, 1060, 4140 and 8260 are identified. Besides the ferromagnetic materials, three objects are also successfully identified. Two of them are anti-personal and anti-tank mines and one is an empty can box. It is shown that the identification system can also be used as a buried mine identification system. The neural networks are trained with images which are originally obtained by the remote sensing system and the system is operated by images with added Gaussian white noises. Crown Copyright (C) 2012 Published by Elsevier Ltd. All rights reserved.
  • Thumbnail Image
    Master Thesis
    Optik Teleskoplar için İki Serbestlik Dereceli Çatal Kurgu Tasarımı
    (2015) Yıldıran, Yaşar; Nazlıbilek, Sedat
    Bu tez ile optik teleskoplar için iki serbestlik derecesinde hareket mekanizmasına sahip çatal kollu teleskop montürünün elektronik, mekanik ve yazılımsal tasarımının ve prototipinin yapılması amaçlanmıştır. Teleskop montürü küçük sınıf teleskoplar için tasarlanmış ve prototiplenmiştir. Protatiplenen teleskop montürü; 35 kg ağırlığındaki optik teleskopları yönlendirebilecek kapasitededir. Teleskop montürünün çatal kolları arasındaki mesafe; 20 cm ile 40 cm ayna çapına sahip optik teleskopların takılmasına imkan verecek niteliktedir. Sistem mekanik gereksinimleri tespit edilmiş buna uygun mekanik tasarım yapılmıştır. Hareketi sağlayacak eyleyiciler ve sistem kontrolü için gerekli elektronik altyapı temin edilmiştir. Sistemin kontrolü Simulink'te oluşturulmuş iki katmanlı blok model ile yapılmaktadır. Simulink harici modda ana kartımız olan Arduino Mega üzerinden eyleyicilerin kontrolüne imkan vermektedir. Sistemin kapalı devre kontrolü iyi bilinen PID kontrolcü ile yapılmıştır. Yapılan prototipin hedefleme ve takip kabiliyeti test edilmiş, elde edilen test sonuçları değerlendirilmiştir. Anahtar Kelimeler: Teleskop Kurgusu, Teleskop Montürü, Alt-Az Teleskoplar, Teleskop kontrol mimarisi, MATLAB – Simulink ile Arduino kart kullanımı
  • Thumbnail Image
    Article
    Citation - WoS: 2
    Citation - Scopus: 5
    New Magnetic Measurement System for Determining Metal Covered Mines by Detecting Magnetic Anomaly Using a Sensor Network
    (Natl inst Science Communication-niscair, 2015) Ege, Yavuz; Kakilli, Adnan; Citak, Hakan; Kalender, Osman; Nazlibilek, Sedat; Sensoy, Mehmet Gokhan; Department of Mechatronics Engineering
    The most commonly used remote sensing methods are used in such applications as the aquistic emmission, ground penetration radar (GPR) detection, electromagnetic induction spectroscopy, infrared imaging, thermal neutron activation, nuclear quadruple resonance, X-ray back scattering, neutron back scattering and magnetic anomaly detection. In deciding which type of method has to be used for detection, the variables such as the type of object, material used, position, geographical and environmental conditions, etc. play important roles. In recent years, studies are mainly concentrated on the improvement of detection distance, accuracy, power consumption aspects of remote sensing methods. In the present study, the same concerns are taken into account and a new magnetic measurement system is developed in this context. The system is made up of a sensor network consisting of high sensitive and low power anisotropic magneto-resistive KMZ51 sensors. The sensor network can detect the magnetic anomalies of vertical component of earth's magnetic field created by buried objects as metal covered mines. In the present paper, the effects of physical properties of metal covered materials to magnetic anomalies have been studied. The sensor network is composed of 24 sensors. The voltage levels of each sensor are measured one-by one and transferred to a digital computer where the distribution of the voltages in x-y plane is plotted as 3D graphics. Furthermore, the performance of the system on the detection of buried metallic mines and determination of their shapes have been investigated.
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    Conference Object
    Attitude Control of Cubesat in Single Axis by Fuzzy Logic Controller
    (Avestia Publishing, 2017) Nazlibilek,S.; Kilickaya,O.G.; Tanyer,S.G.
    Over the last two decades, satellites are getting smaller with increasing capabilities for space research. Small satellites (between 1 and 15 kg) show great promise as a low-cost option both in production and launching. In this work, attitude control problem for a cubesat is examined. A physical testbed is designed for simulation and testing in a single axis. Cubesat reaction wheel and the testbed are integrated, and fuzzy logic control software in Arduino Mega microprocessor environment is developed. The cubesat floor at the same axis of reaction wheel is tested and real-time measurement data are obtained. Step response and ramp response behaviours are analysed. © 2016 Avestia Publishing.