DSpace Home
→
Fakülteler / Faculties
→
Bilgisayar ve Bilişim Bilimleri Fakültesi
→
Yazılım Mühendisliği / Software Engineering
→
Browsing Yazılım Mühendisliği / Software Engineering by Issue Date

Browsing Yazılım Mühendisliği / Software Engineering by Issue Date

Now showing items 1-20 of 47

Finding the composition of gas mixtures by a phthalocyanine-coated QCM sensor array and an artificial neural network

Özmen, Ahmet; F Tekce; Ma Ebeoglu; C Tasaltin; Zz Ozturk (ELSEVIER SCIENCE SA, 2006)

This paper presents a system, which is made of an array of eight phthalocyanine-coated QCM sensors and an ANN to find the corresponding composition of a gas mixture. The digital data collected from the sensor responses ...
Predicting gas concentrations of ternary gas mixtures for a predefined 3D sample space

Bekir Mumyakmaz; Özmen, Ahmet; M. Ali Ebeoglu; Cihat Tasaltin (ELSEVIER SCIENCE SA, 2008)

This paper presents a QCM sensor array and a data processing system to find gas concentration ratios of ternary gas mixtures. QCM sensors are very commonly used for gas sensing and detecting systems since they have linear ...
Anesthetic level prediction using a QCM based E-Nose

H. M. Saraoglu; Özmen, Ahmet; M. A. Ebeoglu (SPRINGER, 2008)
A symbolic algorithm for the automatic computation of multitone-input harmonic balance equations for nonlinear systems

Akgün, Devrim; Çankaya, İlyas (SPRINGER, 2009)

A symbolic algorithm is developed for the automatic generation of harmonic balance equations for multitone input for a class of nonlinear differential systems with polynomial nonlinearities. Generalized expressions are ...
An entropy-based algorithm for data elimination in time-driven software instrumentation

Özmen, Ahmet (ELSEVIER SCIENCE INC, 2009)

While monitoring, instrumented long running parallel applications generate huge amount of instrumentation data. Processing and storing this data incurs overhead, and perturbs the execution. A technique that eliminates ...
Design of a Portable E-Nose Instrument for Gas Classifications

Özmen, Ahmet; Ercan Dogan (IEEE, 2009)

In this paper, a portable instrument is developed for a qualitative discrimination among different gas samples. The system is able to implement various gas measurement protocols entered by a user, display incoming online ...
A study on the development of a compensation method for humidity effect in QCM sensor responses

Mumyakmaz, Bekir; Özmen, Ahmet; Ebeoglu, Mehmet A.; Cihat Tasaltin; Ilke Gurol (ELSEVIER SCIENCE SA, 2010)

In this study, humidity influence on quartz crystal microbalance (QCM) sensor responses during gas applications is investigated. The goal is to search a compensation method to remove humidity influence over the QCM sensor ...
Frequency response investigations of multi-input multi-output nonlinear systems using automated symbolic harmonic balance method

Akgün, Devrim; Çankaya, İlyas (SPRINGER, 2010)

The frequency response characteristics of MIMO systems are investigated by using harmonic balance equations. For this purpose, the algorithm for the automatic generation of harmonic balance equations is extended to include ...
LIBRARY AUTOMATION DESIGN FOR VISUALLY IMPAIRED PEOPLE

Yurtay, Nilüfer; Yücel Bicil; Sait Çelebi; Çit, Gülüzar; Balta, Deniz (TURKISH ONLINE JOURNAL EDUCATIONAL TECH-TOJET, 2011)

Speech synthesis is a technology used in many different areas in computer science. This technology can bring a solution to reading activity of visually impaired people due to its text to speech conversion. Based on this ...
GPU accelerated dynamic functional connectivity analysis for functional MRI data

Akgün, Devrim; Uenal Sakoglu; Johnny Esquivel; Bryon Adinoff; Mutlu Mete (PERGAMON-ELSEVIER SCIENCE LTD, 2015)

Recent advances in multi-core processors and graphics card based computational technologies have paved the way for an improved and dynamic utilization of parallel computing techniques. Numerous applications have been ...
GPU accelerated training of image convolution filter weights using genetic algorithms

Akgün, Devrim; Pakize Erdogmus (ELSEVIER SCIENCE BV, 2015)

Genetic algorithms (GA) provide an efficient method for training filters to find proper weights using a fitness function where the input signal is filtered and compared with the desired output. In the case of image processing ...
Determination of volatile organic compounds in air by a surface acoustic wave array

Özmen, Ahmet; Mehmet Ali Ebeoglu; Bekir Mumyakmaz; Balta, Deniz (TAYLOR & FRANCIS INC, 2016)

This article reports the design and performance of a portable volatile organic compound detection system implemented with a surface acoustic wave array. The system employed electrospray technology for the determination of ...
A real-time virtual sculpting application by using an optimized hash-based octree

Çit, Gülüzar; Ayar, Kayhan; Öz, Cemil (TUBITAK SCIENTIFIC & TECHNICAL RESEARCH COUNCIL TURKEY, 2016)

Creation durations of a traditional octree, a hash-based octree, and our optimized hash-based octree are compared. Tree traversal and surface reconstruction times of our optimized hash-based octree approach are also compared ...
Year Ahead Demand Forecast of City Natural Gas Using Seasonal Time Series Methods

Akpınar, Mustafa; Yumuşak, Nejat (MDPI, 2016)

Consumption of natural gas, a major clean energy source, increases as energy demand increases. We studied specifically the Turkish natural gas market. Turkey's natural gas consumption increased as well in parallel with the ...
Quantitative information extraction from gas sensor data using principal component regression

Özmen, Ahmet; Bekir Mumyakmaz; Mehmet Ali Ebeoglu; Cihat Tasaltin; Ilke Gurol; Zafer Ziya Ozturk; Balta, Deniz (TUBITAK SCIENTIFIC & TECHNICAL RESEARCH COUNCIL TURKEY, 2016)

Several experiments are conducted using two industrial gases (toluene and ethanol) to validate the approach. The new approach is also compared with two classic principal component regression (PCR) methods. The results show ...
A switchable approach to large object allocation in real-time Java

Şahin, Veysel Harun; Kocabıçak, Ümit (TUBITAK SCIENTIFIC & TECHNICAL RESEARCH COUNCIL TURKEY, 2016)

Over the last 20 years object-oriented programming languages and managed run-times like Java have been very popular because of their software engineering benefits. Despite their popularity in many application areas, they ...
Distance and density based clustering algorithm using Gaussian kernel

Emre Gungor; Özmen, Ahmet (PERGAMON-ELSEVIER SCIENCE LTD, 2017)

Clustering is an important field for making data meaningful at various applications such as processing satellite images, extracting information from financial data or even processing data in social sciences. This paper ...
Naive forecasting of household natural gas consumption with sliding window approach

Akpınar, Mustafa; Yumuşak, Nejat (TUBITAK SCIENTIFIC & TECHNICAL RESEARCH COUNCIL TURKEY, 2017)

Household consumption has a significant importance for natural gas wholesale companies. These companies make one-day-ahead forecasting daily. However, there are penalties depending on the error of the estimates. These ...
SEAM CARVING BASED IMAGE RESIZING DETECTION USING HYBRID FEATURES

Zehra Karapinar Senturk; Akgün, Devrim (UNIV OSIJEK, TECH FAC, 2017)

Detection of seam carving-based digital image resizing is a challenging task in image processing field since the method investigates the images on hand semantically. Resizing with seam carving is realized by inserting or ...
Day-Ahead Natural Gas Demand Forecasting Using Optimized ABC-Based Neural Network with Sliding Window Technique: The Case Study of Regional Basis in Turkey

Akpınar, Mustafa; Adak, Muhammed Fatih; Yumuşak, Nejat (MDPI, 2017)

The increase of energy consumption in the world is reflected in the consumption of natural gas. However, this increment requires additional investment. This effect leads imbalances in terms of demand forecasting, such as ...