scholarly journals Upgrade of the external beamline at the microanalytical center of the Jožef Stefan Institute

2022 ◽  
Vol 510 ◽  
pp. 69-75
Author(s):  
K. Isaković ◽  
M. Petric ◽  
Z. Rupnik ◽  
Ž. Šmit ◽  
P. Pelicon ◽  
...  
Keyword(s):  
Jozef Stefan Institute ◽  
Stefan Institute

scholarly journals Determination of backscattered neutrons/gammas from open beam port of a research reactor

2020 ◽  
Vol 225 ◽  
pp. 04032
Author(s):  
Anže Jazbec ◽  
Bor Kos ◽  
Vladimir Radulović ◽  
Klemen Ambrožič ◽  
Luka Snoj
Keyword(s):  
Research Reactor ◽  
Gamma Dose ◽  
Computation Model ◽  
Beam Tube ◽  
Horizontal Beam ◽  
Beam Port ◽  
Jozef Stefan Institute ◽  
Stefan Institute ◽  
Triga Mark Ii

Neutron and gamma dose rate calculations were carried out around horizontal beam tube no. 5 at the Jožef Stefan Institute (JSI) TRIGA Mark II research reactor. Results were compared to the experimental measurements in order to verify the computation model. In addition, another set of calculations and measurements was carried out, where an additional shield made out of concrete and paraffin was installed. With that configuration, we were able to study neutron and gamma scattering.

Nuclear Physics at Jožef Stefan Institute

2014 ◽  
Vol 24 (4) ◽  
pp. 28-31
Author(s):  
Matej Lipoglavšek ◽  
Simon Širca
Keyword(s):  
Nuclear Physics ◽  
Jozef Stefan Institute ◽  
Stefan Institute

scholarly journals Acoustic instrumentation of the new generation of MTR: effect of nuclear radiation on modified Bismuth Titanate piezoelectric elements

2020 ◽  
Vol 225 ◽  
pp. 04012
Author(s):  
JY. Ferrandis ◽  
O. Gatsa ◽  
P. Combette ◽  
D. Fourmentel ◽  
C. Destouches ◽  
...  
Keyword(s):  
Lead Zirconate Titanate ◽  
Electromechanical Coupling ◽  
Bismuth Titanate ◽  
Piezoelectric Materials ◽  
Lead Zirconate ◽  
Nuclear Radiation ◽  
Electromechanical Coupling Coefficient ◽  
Jozef Stefan Institute ◽  
Stefan Institute ◽  
New Generation

In this article we present a first part of the results obtained during an irradiation campaign conducted at the Jozef Stefan Institute to observe the behaviour of piezoelectric materials under gamma and neutron flux. Specific instrumentation has been developed and has enabled the monitoring throughout the irradiation of several materials such as lead zirconate titanate (PZT) or modified Bismuth Titanate (BiT) in either massive or thick film form. Various parameters such as resonance frequency, electromechanical coupling coefficient, electrical capacitance, dielectric losses were measured as a function of the flow and dose received. The results obtained confirm that the samples work up to doses of 10 18 n°/cm2 and that the behaviour of the samples varies according to their composition and form.

scholarly journals Implementation of a Savvy Mobile ECG Sensor for Heart Rhythm Disorder Screening at the Primary Healthcare Level: An Observational Prospective Study

Micromachines ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 55
Author(s):  
Staša Vodička ◽  
Antonija Poplas Susič ◽  
Erika Zelko
Keyword(s):  
Primary Healthcare ◽  
Test Group ◽  
Heart Rhythm ◽  
Control Group ◽  
Healthcare Center ◽  
Jozef Stefan Institute ◽  
Significant Difference ◽  
Stefan Institute ◽  
History Of ◽  
And Control

Introduction: The Jozef Stefan Institute developed a personal portable electrocardiogram (ECG) sensor Savvy that works with a smartphone, and this was used in our study. This study aimed to analyze the usefulness of telecardiology at the primary healthcare level using an ECG personal sensor. Methods: We included 400 patients with a history of suspected rhythm disturbance who visited their family physician at the Healthcare Center Ljubljana and Healthcare Center Murska Sobota from October 2016 to January 2018. Results: The study found that there was no statistically significant difference between the test and control groups in the number of present rhythm disorders and actions taken to treat patients with either observation or administration of a new drug. However, in the test group, there were significantly fewer patients being referred to a cardiologist than in the control group (p < 0.001). Discussion: The use of an ECG sensor helps family physicians to distinguish between patients who need to be referred to a cardiologist and those who can be treated by them. This method is useful for both physicians and patients because it shortens the time taken to start treatment, can be used during pandemics such as COVID-19, and reduces unnecessary cost.

R&D Profile Section: R & D at the robotics laboratory of the Jožef Stefan Institute (Yugoslavia)

Robotica ◽  
1989 ◽  
Vol 7 (2) ◽  
pp. 113-117 ◽  
Author(s):  
Jadran Lenarčič
Keyword(s):  
Research And Development ◽  
Major Element ◽  
Industrial Robots ◽  
Practical Work ◽  
Laboratory Research ◽  
Future Outlook ◽  
Educational Activities ◽  
Jozef Stefan Institute ◽  
Research Themes ◽  
Stefan Institute

SUMMARYThis is a concise survey of the activities carried out by the Robotics Laboratory of the “J. Stefan” Institute, University of E. Kardelj, Ljubljana (Yugoslavia) on the field of robotics research and development of robots. A list of research themes is given with a brief explanation of each containing the objectives, the obtained results, the history and the future outlook. Besides, the main projects concerned with the development of industrial robots are described, as well as the equipment which enables practical work and experimentations as a major element of the laboratory research and educational activities.

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