Trace elements in the environment determined by nuclear activation techniques.

Ölmez, İlhan


Atomic spectral methods for the analysis of trace metals, particularl mercury, in marine environmental samples.
Ramelow, Gerald John; Balkaş, Turgut İ.; Department of Chemistry (1978)
Trace element and major ion composition of wet and dry depositon in Ankara Turkey
Kaya, Güven; Tuncel, Süleyman Gürdal (1997-12-01)
Daily, wet-only precipitation samples collected over a two year period were analyzed for SO42-, NO3-, Cl-, NH4+, H+, Ca, Mg, K, Na, Al, Cu, Cd, Cr, Zn, V and Ni. Weekly dry-deposition samples collected on petri-dishes over the same period were analyzed only for major ions. Concentrations of ions and elements in Ankara precipitation are comparable with concentrations reported in literature for other urban areas. However, the wet deposition fluxes are the lowest among literature values, owing to small annual ...
Optical Waveguides Written Deep Inside Silicon by Femtosecond Laser
Pavlov, Ihor; Pavlova, Svitlana; Kadan, Viktor; Makey, Ghaith; Turnali, Ahmet; Colakoglu, Tahir; Yavuz, Ozgun; İLDAY, Fatih Ömer (2017-06-29)
Summary form only given. Photonic devices that can guide, transfer or modulate light are highly desired in electronics and integrated silicon photonics. Through the nonlinear processes taking place during ultrafast laser-material interaction, laser light can impart permanent refractive index change in the bulk of materials, and thus enables the fabrication of different optical elements inside the material. However, due to strong multi-photon absorption of Si resulting delocalization of the light by free car...
Structural design and analysis of the mission adaptive wings of an unmanned aerial vehicle
Ünlüsoy, Levent; Yaman, Yavuz; Department of Aerospace Engineering (2010)
In this study, the structural design and analysis of a wing having mission-adaptive control surfaces were conducted. The wing structure was designed in order to withstand a maximum aerodynamic loading of 5 g due to maneuver. The structural model of the wing was developed by using MSC/PATRAN package program and that structural model was analyzed by using MSC/NASTRAN package program. The designed wing was then manufactured by Turkish Aerospace Industries Inc. (TUSAŞ-TAI). The finite element analysis results w...
Source apportionment of trace elements in Ankara
Çelik, İlke; Sanin, Faika Dilek; Department of Environmental Engineering (2014)
In this study, chemical composition of aerosol samples in Ankara is identified through receptor modeling. Within the scope of the study, 24-hr aerosol samples are collected by ‘Stack Filter Unit’ with using Nuclepore filter for 9 months at Middle East Technical University campus as a suburban sampling location. Collected filters are analyzed for fifty-seven major and minor trace elements, between z=3 Li and z = 92 (U) and black carbon. Measured concentrations of fine and coarse fractions are compared with c...
Citation Formats
İ. Ölmez, “Trace elements in the environment determined by nuclear activation techniques.,” Ph.D. - Doctoral Program, Middle East Technical University, 1976.