Zobrazeno 1 - 10
of 139
pro vyhledávání: '"Dag Roar Hjelme"'
Publikováno v:
Sensors, Vol 24, Iss 20, p 6505 (2024)
Inversion of the photoplethysmographic (PPG) signal is a rarely reported case. This signal anomaly can have implications for PPG-based cardiovascular assessments. The conditions for PPG signal inversion in the vicinity of the dorsalis pedis (DPA) art
Externí odkaz:
https://doaj.org/article/046cad3da614469aaf948b55eb240428
Autor:
David Urban, Niccolò Marcucci, Christoph Hubertus Wölfle, Jan Torgersen, Dag Roar Hjelme, Emiliano Descrovi
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-12 (2023)
Abstract Light-responsive polymers and especially amorphous azopolymers with intrinsic anisotropic and polarization-dependent deformation photo-response hold great promises for remotely controlled, tunable devices. However, dynamic control requires r
Externí odkaz:
https://doaj.org/article/4c552562f40b42ab86ccd3ee54657478
Publikováno v:
MethodsX, Vol 6, Iss , Pp 2584-2591 (2019)
During the process of converting the organic matter into methane, many volatile fatty acids (VFAs) are produced during acidogenesis and acetogenesis phases of the process. The main VFAs of interest are acetic acid, butyric acid and propionic acid. Al
Externí odkaz:
https://doaj.org/article/d08b182c45054dd6bb8b61f6edd3ec79
Autor:
Harald Ian D. I. Muri, Dag Roar Hjelme
Publikováno v:
Energies, Vol 15, Iss 3, p 1105 (2022)
Reuse, refurbishing, and recycling are the most sustainable options for handling waste materials. However, for municipal solid waste (MSW) that is highly heterogenic, crude, contaminated, and decrepit, thermal conversion in waste-to-energy (WtE) plan
Externí odkaz:
https://doaj.org/article/5c7e097b1cf6439d8dca3a00ac8f2c6c
Publikováno v:
Sensors, Vol 21, Iss 24, p 8434 (2021)
We developed a novel miniature micro-lensed fibre probe for Raman spectroscopy. The fibre probe consists of a single negative-curvature fibre (NCF) and a spliced, cleaved, micro-lensed fibre cap. Using a single NCF, we minimized the Raman background
Externí odkaz:
https://doaj.org/article/47fb4b7cd6cb44d2b91cb9ac61ba978c
Publikováno v:
Sensors, Vol 21, Iss 21, p 7351 (2021)
The successful development of a system realizing color sonification would enable auditory representation of the visual environment. The primary beneficiary of such a system would be people that cannot directly access visual information—the visually
Externí odkaz:
https://doaj.org/article/1b3f8a322fcf4bfab0cb85a73d1eec21
Autor:
Anders Lyngvi Fougner, Konstanze Kölle, Nils Kristian Skjærvold, Nicolas-Andreas L. Elvemo, Dag Roar Hjelme, Reinold Ellingsen, Sven Magnus Carlsen, Øyvind Stavdahl
Publikováno v:
Modeling, Identification and Control, Vol 37, Iss 2, Pp 121-131 (2016)
Rapid, accurate and robust glucose measurements are needed to make a safe artificial pancreas for the treatment of diabetes mellitus type 1 and 2. The present gold standard of continuous glucose sensing, subcutaneous (SC) glucose sensing, has been cl
Externí odkaz:
https://doaj.org/article/71f9b656f43f47b09f66870938f943f1
Autor:
Marte Kierulf Åm, Konstanze Kölle, Anders Lyngvi Fougner, Ilze Dirnena-Fusini, Patrick Christian Bösch, Reinold Ellingsen, Dag Roar Hjelme, Øyvind Stavdahl, Sven Magnus Carlsen, Sverre Christian Christiansen
Publikováno v:
PLoS ONE, Vol 13, Iss 10, p e0205447 (2018)
BACKGROUND:In diabetes research, the development of the artificial pancreas has been a major topic since continuous glucose monitoring became available in the early 2000's. A prerequisite for an artificial pancreas is fast and reliable glucose sensin
Externí odkaz:
https://doaj.org/article/cb243709b31f48b894be4a8254627eb3
Publikováno v:
Sensors, Vol 19, Iss 18, p 4030 (2019)
Fabrication of multimode fiber optic interferometers requires accurate control of certain parameters to obtain reproducible results. This paper evaluates the consequences of practical challenges in fabricating reflection-based, fiber optic interferom
Externí odkaz:
https://doaj.org/article/b54d985da66344319ea352eafa00e079
Publikováno v:
Applied Sciences, Vol 8, Iss 12, p 2446 (2018)
The distribution of noble metal nanoparticles (NMNPs) in hydrogels influences their nanoplasmonic response and signals used for biosensor purposes. By controlling the particle distribution in NMNP-nanocomposite hydrogels, it is possible to obtain new
Externí odkaz:
https://doaj.org/article/9b4039f52ec742df96da2e8b87709685