Search Results - "Jokela, Kari"

Human exposure to pulsed fields in the frequency range from 6 to 100 GHz by Laakso, Ilkka, Morimoto, Ryota, Heinonen, Juhani, Jokela, Kari, Hirata, Akimasa

“…Restrictions on human exposure to electromagnetic waves at frequencies higher than 3-10 GHz are defined in terms of the incident power density to prevent…”
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On the averaging area for incident power density for human exposure limits at frequencies over 6 GHz by Hashimoto, Yota, Hirata, Akimasa, Morimoto, Ryota, Aonuma, Shinta, Laakso, Ilkka, Jokela, Kari, Foster, Kenneth R

“…Incident power density is used as the dosimetric quantity to specify the restrictions on human exposure to electromagnetic fields at frequencies above 3 or 10…”
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Occupational exposure measurements of static and pulsed gradient magnetic fields in the vicinity of MRI scanners by Kännälä, Sami, Toivo, Tim, Alanko, Tommi, Jokela, Kari

“…Recent advances in magnetic resonance imaging (MRI) have increased occupational exposure to magnetic fields. In this study, we examined the assessment of…”
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Temperature Rise for Brief Radio-Frequency Exposure Below 6 GHz by Kodera, Sachiko, Hirata, Akimasa, Funahashi, Daisuke, Watanabe, Soichi, Jokela, Kari, Croft, Rodney J.

“…In international guidelines for human protection from radio-frequency (RF) electromagnetic fields, the specific absorption rate (SAR) averaged over 6 min and…”
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PHYSIOLOGIC AND DOSIMETRIC CONSIDERATIONS FOR LIMITING ELECTRIC FIELDS INDUCED IN THE BODY BY MOVEMENT IN A STATIC MAGNETIC FIELD by Jokela, Kari, Saunders, Richard D

“…Movement in a strong static magnetic field induces electric fields in a human body, which may result in various sensory perceptions such as vertigo, nausea,…”
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ICNIRP statement--Protection of workers against ultraviolet radiation by Ziegelberger, G

“…Occupational exposures to ultraviolet radiation (UVR) can originate from the sun and from artificial sources such as specialized lamps and open arcs processes,…”
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Guidelines for Limiting Exposure to Electromagnetic Fields (100 kHz to 300 GHz) by Ziegelberger, Gunde

“…ABSTRACTRadiofrequency electromagnetic fields (EMFs) are used to enable a number of modern devices, including mobile telecommunications infrastructure and…”
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Dielectric polarization transients in biological tissue moving in a static magnetic field by Jokela, Kari, Laakso, Ilkka

“…Movement of a body in a static magnetic field gives rise to the Lorentz force that induces in the medium both electric currents and dielectric polarization. It…”
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Computational dosimetry of induced electric fields during realistic movements in the vicinity of a 3 T MRI scanner by Laakso, Ilkka, Kännälä, Sami, Jokela, Kari

“…Medical staff working near magnetic resonance imaging (MRI) scanners are exposed both to the static magnetic field itself and also to electric currents that…”
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Occupational exposure to intermediate frequency and extremely low frequency magnetic fields among personnel working near electronic article surveillance systems by Roivainen, Päivi, Eskelinen, Tuomo, Jokela, Kari, Juutilainen, Jukka

“…Cashiers are potentially exposed to intermediate frequency (IF) magnetic fields at their workplaces because of the electronic article surveillance (EAS)…”
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ASSESSMENT OF COMPLEX EMF EXPOSURE SITUATIONS INCLUDING INHOMOGENEOUS FIELD DISTRIBUTION by Jokela, Kari

“…Assessment of exposure to time varying electric and magnetic fields is difficult when the fields are non-uniform or very localized. Restriction of the local…”
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Evaluation of a Single-monochromator Diode Array Spectroradiometer for Sunbed UV-radiation Measurements by Ylianttila, Lasse, Visuri, Reijo, Huurto, Laura, Jokela, Kari

“…The suitability of a new technology single-monochromator diode array spectroradiometer for UV-radiation safety measurements, in particular for sunbed…”
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Specific absorption rate and electric field measurements in the near field of six mobile phone base station antennas by Toivonen, Tommi, Toivo, Tim, Puranen, Lauri, Jokela, Kari

“…In this article, the exposure to radio frequency electromagnetic fields was studied in close proximity (distances of 10, 100, 300, and 600 mm) to six base…”
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RESTRICTING EXPOSURE TO PULSED AND BROADBAND MAGNETIC FIELDS by Jokela, Kari

“…A general procedure is described for application of the new ICNIRP exposure guidelines to pulsed and broadband magnetic fields below 100 kHz. The procedure…”
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(International Commission on Non-Ionizing Radiation Protection). ICNIRP Guidelines for Limiting Exposure to Electric Fields Induced by Movement of the Human Body in a Static Magnetic Field and by Time-Varying Magnetic Fields below 1 Hz by Rüdiger, Matthes, Maria, Feychting, Rodney, Croft, Adele, Green, Kari, Jokela, James C., Lin, Carmela, Marino, Agenette P., Peralta, Richard, Saunders, Karl, Schulmeister, Pier, Söderberg, E. Stuck, Bruce, Antony J., Swerdlow, Zenon, Sienkiewicz, Rongen Eric, Van, Paolo, Vecchia, Bernard, Veyret, Soichi, Watanabe

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Setup and dosimetry for exposure of human skin in vivo to RF-EMF at 900 MHz by Toivonen, Tommi, Toivo, Tim, Puranen, Lauri, Jokela, Kari

“…The aim of this study was a dosimetrical analysis of an experimental setup used in the exposure of 10 female volunteers to GSM 900 radiation. The exposure was…”
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Setup and dosimetry for exposing anaesthetised pigs in vivo to 900 MHz GSM mobile phone fields by Toivonen, Tommi, Toivo, Tim, Pitkäaho, Risto, Puranen, Lauri, Silfverhuth, Minna, Mennander, Ari, Hannula, Markus, Hyttinen, Jari, Jokela, Kari

“…The aim of this study was a dosimetrical analysis of the setup used in the exposure of the heads of domestic pigs to GSM‐modulated radio frequency…”
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Erythemally Weighted Radiometers in Solar UV Monitoring: Results from the WMO/STUK Intercomparison by Leszczynski, Kirsti, Jokela, Kari, Ylianttila, Lasse, Visuri1, Reijo, Blumthaler, Mario

“…ABSTRACT The first international intercomparison of erythemally weighted (EW) broadband radiometers was arranged in 1995 to improve the accuracy and…”
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Evaluation of a Single-monochromator Diode Array Spectroradiometer for Sunbed UV-radiation Measurements by Ylianttila, Lasse, Visuri, Reijo, Huurto, Laura, Jokela, Kari

“…ABSTRACT The suitability of a new technology single‐monochromator diode array spectroradiometer for UV‐radiation safety measurements, in particular for sunbed…”
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MEASURED AND COMPUTED INDUCED BODY CURRENTS IN FRONT OF AN EXPERIMENTAL RF DIELECTRIC HEATER by Kännälä, Sami, Puranen, Lauri, Sihvonen, Ari-Pekka, Jokela, Kari

“…Operators of industrial high-frequency dielectric heaters are exposed to electromagnetic fields that are high enough to significantly increase body…”
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