Effect of operational parameters and formation properties on drillability in surface set diamond core drilling

Akün, M. Ertan


Effect of human prior knowledge on game success and comparison with reinforcement learning
Hasanoğlu, Mert.; Çakır, Murat Perit; Department of Cognitive Sciences (2019)
This study aims to find out the effect of prior knowledge on the success of humans in a non-rewarding game environment, and then to compare human performance with a reinforcement learning method in an effort to observe to what extent this method can be brought closer to human behavior and performance with the data obtained. For this purpose, different versions of a simple 2D game were used, and data were collected from 32 participants. At the end of the experiment, it is concluded that prior knowledge, such...
Effect of Polymer Additives and Process Temperature on the Physical Properties of Bitumen-Based Composites
Dogan, Mehmet; Bayramlı, Erdal (2009-08-15)
Polymer modified bitumen (PMB) is a binder obtained by the incorporation of polymer into the bitumen by mechanical mixing or chemical reaction. This study deals with the modification of bitumen with three types of polymers (LDPE, EVA, and SBS) in the presence of filler (CaCO3). The morphological, mechanical, rheological properties, and thermal conductivity of the PMBs have been analyzed by scanning electron microscopy, tensile testing, melt flow index (MFI) measurements and hot wire method, respectively. Th...
Role of nitrogen in submerged plant development in Mediterranean climatic zone - a mesocosm experiment
Özkan, Korhan; Beklioğlu, Meryem; Department of Biology (2008)
The effects of increasing nitrogen and phosphorus loading on submerged macrophyte development was tested in a mesocosm experiment for three months. Experiment consisted of three NO3-N loadings with factorial of two PO4-P loadings in a fourfold replicated design. Twenty four enclosures placed at one meter depth were isolated from the lake but kept open to sediment and atmosphere. Each enclosure stocked with ten Myriophyllum spicatum shoots with underyearling fish to reduce zooplankton grazers. Biweekly sampl...
The effect of ecotoxicants on the aquatic food web and prey-predator relationships
Akkaş, Sara Banu; Severcan, Feride; Department of Biology (2009)
There is considerable need for higher-tier aquatic risk assessment and information on toxicant-induced molecular alterations in lower aquatic invertebrates. Thus the current study’s priorities were two-fold: a novel approach utilizing higher-tier ecotoxicity bioassay-guided ATR-FTIR (Attenuated Total Reflectance Fourier Transform Infrared) spectroscopy to better understand the impact of the presence of fish predation pressure – mimicked by predator-exuded info-chemicals – on cypermethrin or salinity toxicit...
Effect of column rectangularity on CFRP-strengthened RC flat plates
ERDOĞAN, HAKAN; Binici, Barış; Ozcebe, Guney (2011-07-01)
This study presents experimental and analytical research that focused on the behaviour of carbon-fibre-reinforced polymer (CFRP)-strengthened flat-slab specimens for punching shear enhancement. Seven 0.75-scale flat-slab specimens representing interior slab-column connections with different column aspect ratios varying from 1 to 3 were tested. The results revealed that increasing column rectangularity had a detrimental effect on column punching strength of all specimens. A strength increase of at least 30% ...
Citation Formats
M. E. Akün, “Effect of operational parameters and formation properties on drillability in surface set diamond core drilling,” Ph.D. - Doctoral Program, Middle East Technical University, 1997.