1. ASSESSMENT OF EFFECTIVE DOSES BASED ON VARIOUS RADON MEASURING TECHNIQUESNataša Smrekar, 2016, magistrsko delo Opis: In my master's thesis, I have focused on radon gas in 43 buildings used for different purposes (23 schools, 3 kindergartens, 16 offices and a residential house) in which preliminary measurements had shown higher concentrations of radon gas. I carried out measurements of radon and short-lived radon products whilst simultaneously employing different measurement techniques. In all 43 buildings, I measured the instantaneous concentration of radon by using scintillation cells; in 18 buildings, I additionally measured the average concentration of radon by using solid state nuclear track detectors and in 10 buildings, I measured concentration retrospectively with solid state nuclear track detectors. In four selected buildings (a school, a kindergarten, an office and a residential house), I carried out the measurements by using all of the available equipment. I monitored the daily fluctuations of concentration of radon and short-lived radon products by using continuous monitors in 14 buildings. This is how I obtained the factor of radioactive equilibrium between radon and its short-lived products. Based on the results obtained, I calculated the effective doses. As the basis for calculating the doses, I used the instantaneous and average concentrations of radon and the equilibrium factor taken from literature (0.40) or own measurements. I compared the doses and critically evaluated them.
In contrast to the previous research, I researched radon exclusively in areas with increased risk for radon. I studied the influence of the working regime on the concentration of radon in different working environments (i.e. a school, a kindergarten and an office).
Najdeno v: ključnih besedah
Povzetek najdenega: ...and a residential house) in which preliminary measurements had shown higher concentrations of radon gas....
Ključne besede: Radon, short-lived radon products, measurement technique, scintillation cell, solid-state nuclear track detector, retrospective detector, equilibrium factor, effective dose, comparison.
Objavljeno: 28.09.2016; Ogledov: 2538; Prenosov: 188
 Polno besedilo (1,86 MB) |
2. Depth-resolved ultra-violet spectroscopic photo current-voltage measurements for the analysis of AlGaN/GaN high electron mobility transistor epilayer deposited on SiBurcu Ozden, Chungman Yang, Fei Tong, Min Khanal, Vahid Mirkhani, Mobbassar Hassan Sk, Ayayi Ahyi, Minseo Park, 2014, izvirni znanstveni članek Najdeno v: ključnih besedah
Ključne besede: AlGaN/GaN high electron mobility transistor, Depth-resolved ultra-violet spectroscopic photo current-voltage measurement
Objavljeno: 16.01.2017; Ogledov: 1579; Prenosov: 0
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3. Growth of nanostructured ZnO on wearable fabrics for functional garmentMinseo ParK, Fei Tong, Achintya Sujan, Yoonsung Chung, Minseo Park, Bruce Tatarchuk, Helen Koo, Hosang Ahn, Young Soo Yoon, Dong-Joo Kim, 2014, izvirni znanstveni članek Najdeno v: ključnih besedah
Ključne besede: ZnO, Fabrics, Dip-pad-cure method, Nanorods, Diffuse reflectance, IV measurement
Objavljeno: 16.01.2017; Ogledov: 1390; Prenosov: 0
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4. Solution-Based Fabrication of Carbon Nanotube Bumps for Flip-Chip InterconnectsXu Pingye, Fei Tong, Virginia Davis, Minseo Park, Michael Hamilton, 2014, izvirni znanstveni članek Najdeno v: ključnih besedah
Povzetek najdenega: ...Resists, Fabrication, Electrical resistance measurement, Substrates, Dispersion, Resistance, Surface treatment...
Ključne besede: Resists, Fabrication, Electrical resistance measurement, Substrates, Dispersion, Resistance, Surface treatment
Objavljeno: 16.01.2017; Ogledov: 1387; Prenosov: 0
Polno besedilo (4,51 MB) |
