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Browsing Yazılım Mühendisliği / Software Engineering by Author "Özmen, Ahmet"

Now showing items 1-15 of 15

A software tool development study for solar energy potential analysis

Kaynak, Sümeyye; Kaynak, Baran; Özmen, Ahmet (ELSEVIER SCIENCE SA, 2018)

Analysis of solar radiation on buildings at the urban or individual scale has an important share in the formation of a sustainable environment. The accuracy of solar radiation analysis in buildings depends on the holistic ...
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 ...
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 ...
Anesthetic level prediction using a QCM based E-Nose

H. M. Saraoglu; Özmen, Ahmet; M. A. Ebeoglu (SPRINGER, 2008)
Coarse Segmentation With GDD Clustering Using Color and Spatial Data

; Emre Gungor; Özmen, Ahmet (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2020)

Segmentation is a challenging and important task in image processing while developing vision based decision support systems. Color and brightness are widely used properties for extracting segments, however color information ...
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 ...
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 ...
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 ...
EDU-DRM: A Digital Rights Management (DRM) system for K-12 education

Özmen, Ahmet; Şanslı, Ahmet; Şahin, Veysel Harun (SHARIF UNIV TECHNOLOGY, 2019)

The technological achievements in digital publishing have made paperless education possible even in K-12 education. Aside from high bandwidth distribution infrastructure, the main difficulties of digital publishing are ...
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 ...
GPU-Based Dynamic Solar Potential Estimation Tool Using 3D Plans

; Kaynak, Sümeyye; Kaynak, Baran; Özmen, Ahmet (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2020)

Estimations of the solar potential from the building design files may affect placement considerations in favor of more sunlight reception that reduces the energy costs and saves the environment. In this study, a GPU based ...
IMSSAP: After-school interactive mobile learning student support application

Ahmad M. Khachan; Özmen, Ahmet (WILEY, 2019)

Traditional methods intended for education are no longer suitable for it, since they are unable to meet the students' learning needs. M-learning is becoming a global interest. Various studies were conducted in many countries ...
A modeling and simulation study about CO2 amount with web-based indoor air quality monitoring

Balta, Deniz; Özmen, Ahmet; Yalçın, Nesibe (TUBİTAK, 2018-05-30)

Human breath causes indoor air quality (IAQ) to get worse in overcrowded places such as schools, hospitals, and offices where people spend most of their time, and it is rarely felt. For a healthy and comfortable living ...
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 ...
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 ...