Optimization of the highway maintenance costs.

Atalay, Fuat


Optimization of bioethanol production from kitchen waste
Uncu, Oya Nihan; Çekmecelioğlu, Deniz; Department of Food Engineering (2009)
Kitchen waste, which is collected in large amounts from cafeterias, restaurants, dining halls, food processing plants, and household kitchens, have become a valuable material for bioprocess engineering. Due to the high carbohydrate fraction, kitchen waste has great potential to be used as a potential substrate for ethanol production. Utilization of it as a raw material in ethanol fermentation would also contribute to reduction of costs. In the first part of this study, the effect of pretreatment method and ...
Optimization of conditions in sulfuric acid leaching of Turkish chromite concentrates
Ustaoğlu, Emre; Geveci, Ahmet; Department of Metallurgical and Materials Engineering (2006)
In this thesis work, a high grade chromite concentrate obtained from Pınarbaşı, Kayseri region of Turkey was reacted with sulfuric acid solution to determine the optimum conditions of leaching of chromite ores. Conventional methods for producing chromium are still valid in industry. The main process in production includes soda melting and taking it into solution in the form of chemical compounds such as sodium dichromate. Three and six valence states of chromium have importance in production. Trivalent chro...
Optimization of nitrogen sources for the maximum production of cellulases and xylanases by Aspergillus Niger strains
Iram, Attia; Çekmecelioğlu, Deniz; Demirci, Ali (2021-01-01)
© ASABE 2021. All rights reserved.Hydrolytic enzymes such as cellulases and xylanases are required for second-generation bioethanol production. Distillers Dried Grains with Solubles (DDGS) has high fiber content which can be used to produce such enzymes by various fungal species. Aspergillus niger is one of the top producers of hydrolytic enzymes. The addition of nitrogen sources can further enhance enzyme production in DDGS based media. Therefore, in this study, two A. niger strains, NRRL 330 and NRRL 567,...
Optimization of oxygen requirements in activated sludge treatment plants
Tunca (Yazıcı), Şengül; Uluğ, Erol; Department of Environmental Engineering (1990)
Optimization of hydroelectric power production of Sariyar and Gokcekaya reservoirs by dynamic programming.
Aygün, Ercan; Department of Civil Engineering (1978)
Citation Formats
F. Atalay, “Optimization of the highway maintenance costs.,” Middle East Technical University, 1976.