We have published a study about air quality parameters which are affected by people exercising in inner spaces. The results allow to estimate an additional input of respiratory particulate matter under typical atmospheric conditions in the gym and are immediatelly applicable to vaste number of similar cases. We report results of analysis of a month-long measurement of indoor air and environment quality parameters in one gym during sporting activities such as football, basketball, volleyball, badminton, boxing, and fitness. We have determined an average single person’s contribution to the increase of temperature, humidity, and dust concentration in the gym air volume of 12500 m3: during 90-min exercise performed at an average heart rate of 143(10) bpm, a single person evaporated 0.94 kg of water in to the air by sweating, contributed 0.03 K to the air temperature rise and added 1.5 µg/m3 and 5 ng/m3 to the indoor concentration of inhalable particles (PM10) and Ca concentration, respectively. As the breathing at the observed exercise intensity was about three times faster with respect to the resting condition and as the exercise-induced PM10 concentration was about two times larger than outdoors, a sportsman in the gym would receive about a sixfold higher dose of PM10 inside than he/she would have received at rest outside.
F.17 Transfer of existing technologies, know-how, methods and procedures into practice
COBISS.SI-ID: 1538041540This work tackles important problems regarding durability of hip prostetic components once they are mounted in the body. Very often the placement of the component is the only way to restore the quality of movement, especially for older people. In particular, the influence of polyacetal wear particles on aseptic loosening of non-cemented isoelastic femoral stems with polyacetal coating remains unclear. The aim of our study was to use nuclear methods to prove the presence of polyacetal wear particles, to determine their morphology and to check their distribution in the tissues around loosened hip prosthetic components.
F.21 Development of new health/diagnostic methods/procedures
COBISS.SI-ID: 28801063Iztok Arčon has given a beautiful presentation of his invited plenary talk t the high school Celje at the occasion of the International Year of Light, 4. 12. 2015. This is an important achievement of our research programme member and concerns popularization of science
D.11 Other
COBISS.SI-ID: 4090875In the first semester of 2015-2016 school year start of lectures in Atomic Physics at Faculty of Mathematics and Physics at University of Ljubljana. About 10 course members, mainly students of physics. One semester course with 5 ETCS (2/1). Lecturer prof. dr. M. Žitnik, assistant doc. dr. A. Mihelič.
D.10 Educational activities
It turns out that one can contribute a lot to the solution of serious industrial problems and verification of new techologies by using relatively simple and robust ion beam analitical methods.
F.12 Improvements to an existing service