Time and production study and cost analysis of an asphaltic runway overlay project.

Ergul, Ismet


Time And Areal Aggregation Problems In Estimating Migration
Tekeli, İlhan; Erder, Leila (Middle East Technical University, Faculty of Architecture, 1977)
Migration is a current topic of scholarly discussion and general interest as more and more of the world's population moves. In spite of the growing number of migration studies, the observation and measurement of migration as a social process in time and space have escaped rigorous review. This paper explores the theoretical problems of observing and measuring internal migration between administratively defined area units and over time periods specified by observation dates. Emphasis is oh understanding the ...
Time-resolved OSL studies of YAlO3:Mn2+ crystals
Time-Resolved Optically Stimulated Luminescence (TR-OSL) from single crystalline YAlO3:Mn2+ samples was investigated using a green light emitting diode (lambda- 525nm) as stimulation light source. The TR-OSL decay curve of the material can be described with a single exponential decay function with a lifetime about 80 ms that does not depend on irradiation dose in the range from 50 mGy to 1 kGy. This OSL decay is superposed on a photoluminescence signal with a much shorter (3.5 ms) decay lifetime. The Mn2+ p...
Time-resolved OSL studies on BeO ceramics
Bulur, Enver (Elsevier BV, 2013-12)
Time-Resolved Optically Stimulated Luminescence (TR-OSL) from BeO ceramics was investigated using a blue laser (445 nm) as stimulation light source. It was observed that, at relatively low dose levels (up to similar to 25 Gy) the TR-OSL decay curve can be approximated with a single exponential decay function with a lifetime of similar to 26 gs at room temperature. Beyond 25 Gy a new decay component with a lifetime of a similar to 2 ts was observed in addition to the similar to 26 mu s component. Thermal sta...
Time-dependent material behaviour of aged surface support liner
Güner, Doğukan; Öztürk, Hasan (2018-07-06)
Time-resolved OSL of natural zircon: A preliminary study
Bulur, Enver; Sarac, B. E. (Elsevier BV, 2014-01-01)
Time-resolved OSL (TR-OSL) from natural zircon (ZrSiO4) minerals was investigated using 445 nm blue laser light for stimulation. Analyses of the TR-OSL spectra have showed that the decay is composed of two exponential components with lifetimes varying around similar to 17 mu s and around similar to 110 mu s respectively. The behaviour of these signal components, was examined under various sample treatments and experimental conditions. Preheating experiments showed that the OSL signal is stable up to tempera...
Citation Formats
I. Ergul, “Time and production study and cost analysis of an asphaltic runway overlay project.,” Middle East Technical University, 1984.