“LESSONS LEARNED” (PARTIAL TEST DEPLOYMENTS REPORT)Tomislav Brajnović,
, Peter Purg
, Daniela Brasil
, Alessandro Bordina
, Miljana Babić
, 2014, druge monografije in druga zaključena dela
Opis: The report consist of individual test-run reports by participating teachers and consortium-level observers that gathered qualitative and quantitative data through short interviews, surveys and QA questionnaires mostly with students, but also among themselves. A joint evaluation is delivered and a “lessons learned” compendium published, offered digitally through the project’s dissemination system (mostly newsletter and website-promotion), and spread locally through the teaching communities – also partly entering the professional article as “experience report” (see next deliverable). These reports and the “lessons learned” were discussed and confirmed in the below structure at the September 2013 meeting, organised by P4. Notably, a total of three sceintific or porfessional articles were (to be) published (as separate deliverables) refereing to the lessons learned in this project, refering to the summative experience of the project.
Najdeno v: ključnih besedah
Ključne besede: Curriculum, module, course, study programme, degree, international, comparison, study, national, studio, MA
Objavljeno: 05.07.2016; Ogledov: 2744; Prenosov: 163
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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
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: 3434; Prenosov: 217
Polno besedilo (1,86 MB)
Comparison and complementary use of in situ and remote sensing aerosol measurements in the Athens Metropolitan AreaS. Vratolis
, Griša Močnik
, Konstantinos Eleftheriadis
, 2020, izvirni znanstveni članek
Opis: In the summer of 2014 in situ and remote sensing instruments were deployed in Athens, in order to study the concentration, physical properties, and chemical composition of aerosols. In this manuscript we aim to combine the measurements of collocated in situ and remote sensing instruments by comparison and complementary use, in order to increase the accuracy of predictions concerning climate change and human health. We also develop a new method in order to select days when a direct comparison on in situ and remote sensing instruments is possible. On selected days that displayed significant turbulence up to approximately 1000 m above ground level (agl), we acquired the aerosol extinction or scattering coefficient by in situ instruments using three approaches. In the first approach the aerosol extinction coefficient was acquired by adding a Nephelometer scattering coefficient in ambient conditions and an Aethalometer absorption coefficient. The correlation between the in situ and remote sensing instruments was good (coefficient of determination equal to 0.69). In the second approach we acquired the aerosol refractive index by fitting dry Nephelometer and Aethalometer measurements with Mie algorithm calculations of the scattering and absorption coefficients for the size distribution up to a maximum diameter of 1000 nm obtained by in situ instruments. The correlation in this case was relatively good ( equal to 0.56). Our next step was to compare the extinction coefficient acquired by remote sensing instruments to the scattering coefficient calculated by Mie algorithm using the size distribution up to a maximum diameter of 1000 nm and the equivalent refractive index (), which is acquired by the comparison of the size distributions obtained by a Scanning Mobility Particle Sizer (SMPS) and an Optical Particle Counter (OPC). The agreement between the in situ and remote sensing instruments in this case was not satisfactory ( equal to 0.35). The last comparison for the selected days was between the aerosol extinction Ångström exponent acquired by in situ and remote sensing instruments. The correlation was not satisfactory ( equal to 0.4), probably due to differences in the number size distributions present in the air volumes measured by in situ and remote sensing instruments. We also present a day that a Saharan dust event occurred in Athens in order to demonstrate the information we obtain through the synergy of in situ and remote sensing instruments on how regional aerosol is added to local aerosol, especially during pollution events due to long range transport.
Najdeno v: ključnih besedah
Ključne besede: Aerosol mixing in the vertical, In situ — Remote sensing comparison, Regional aerosol addition to local aerosol
Objavljeno: 09.04.2020; Ogledov: 878; Prenosov: 0
Polno besedilo (3,98 MB)