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    Air quality mapping using an e-nose system in northwestern Turkey
    (Eesti Pollumajandusulikool, 2017) Kızıl, Ü.; Genç, L.; Aksu, S.
    A gas sensor based electronic nose system is developed for monitoring air quality dispersion in and around livestock barns. The mobile system can be used in various applications under laboratory and field conditions. The system consists of 10 metal oxide Figaro gas sensors and a temperature/humidity sensor integrated with custom made circuits and data acquisition software. The sensors are sensitive to major odorous compounds. The e-nose system provides an easy, cost effective and user friendly tool for air quality monitoring. There is a relationship with sensor responses and gas concentrations are linear. Therefore, instead of calculating concentrations using statistical methods such as PCA and ANNs raw sensor data is used to monitor air quality. In order to monitor spatial distributions of sensor responses Kriging method is applied. Interpolation maps for each sensor response are developed. In order to visualize the areas where air quality problems occur, response of an air quality module is used as reference. Results showed the effectiveness of the developed system and method. © 2017, Eesti Pollumajandusulikool. All rights reserved.
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    Öğe
    Web and android applications for district level nutrient management planning
    (Eesti Pollumajandusulikool, 2017) Aksu, S.; Kızıl, Ü.; Genç, L.; Yıldız, A.M.
    Livestock manure, often perceived as a waste problem, is in fact a valuable nutrient source for plants. Besides, it does not only provide nutrients to plants, also improves soil structure, aeration properties and water retention capacity. A district level manure management study was conducted in Çanakkale/Turkey for developing a web based application for animal manure application rates. The procedure and the outcomes of the study were made available for better use of producers. Therefore, a web and an android based application was developed using java programming language coupled with android job package that accessed database for interaction and presentations of the results. The database was created with PHP scripting language to provide soil analysis results (electrical conductivity, pH, lime, organic matter, nitrogen, phosphorus, potassium, iron, manganese, copper and zinc) and manure application rates for major cultivars (paddy rice, maize, wheat, processing and table tomato) within the Gümüşçay district of Çanakkale and uploaded on a server. Then, a browser access interface to specific web page built up with Massachusetts Institute of Technology (MIT) app inventor 2 for android devices and published on official android market. © 2017, Eesti Pollumajandusulikool. All rights reserved.