Zobrazeno 1 - 10
of 59
pro vyhledávání: '"Christer Samuelsson"'
Publikováno v:
Applied Radiation and Isotopes. 128:249-255
The peak-to-valley method was investigated under laboratory conditions and in situ with respect to both 134 Cs perturbation of the 137 Cs valley and use of collimation. The 134 Cs perturbation is significant down to 134 Cs: 137 Cs activity ratios of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c9b945d9d67072476e6c68dba5b71a8f
https://doi.org/10.1016/j.apradiso.2017.07.004
https://doi.org/10.1016/j.apradiso.2017.07.004
Publikováno v:
Applied Radiation and Isotopes. 120:89-94
The peak-to-valley (PTV) method was investigated experimentally comparing PTV ratios for three HPGe detectors, with complementary Monte Carlo simulations of scatter in air for larger source-detector distances. The measured PTV ratios for 137Cs in air
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::62af35d0f55297da4ff6e215c3c66128
https://doi.org/10.1016/j.apradiso.2016.11.006
https://doi.org/10.1016/j.apradiso.2016.11.006
Autor:
Christer Samuelsson, Sanja Štajner
Current mainstream natural language processing tasks rely heavily on the use of statistical methods. This chapter presents statistical methods from their fundamentals to more complex methods, including hidden Markov and maximum entropy models applied
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e93172927a7cce12cbb3035baa884336
https://doi.org/10.1093/oxfordhb/9780199573691.013.40
https://doi.org/10.1093/oxfordhb/9780199573691.013.40
Autor:
Christer Samuelsson
Publikováno v:
ICCS
We propose the stochastic simplex bisection algorithm. It randomly selects one from a set of simplexes, bisects it, and replaces it with its two offspring. The selection probability is proportional to a score indicating how promising the simplex is t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1c90b55dd5c037c76271a6f2049b30bf
Autor:
Christer Samuelsson
Publikováno v:
FedCSIS (Communication Papers)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::20362c35f9d26657c28755c25760b6c7
https://doi.org/10.15439/2017f119
https://doi.org/10.15439/2017f119
Publikováno v:
Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine. 128
The peak-to-valley method was investigated under laboratory conditions and in situ with respect to both
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::1c333c863bd7fc131fbc6455d163204a
https://pubmed.ncbi.nlm.nih.gov/28743069
https://pubmed.ncbi.nlm.nih.gov/28743069
Publikováno v:
Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment; 681, pp 55-60 (2012)
A well-founded decision needs to take into account as much information from a sample as possible. In gamma spectrometry, the number of photons and their energy are the two quantities readily accessible to the physicist and both should be used in orde
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::26de21a856422c815638ef1099affba0
https://doi.org/10.1016/j.nima.2012.04.038
https://doi.org/10.1016/j.nima.2012.04.038
Autor:
Peder Kock, Christer Samuelsson
Publikováno v:
Journal of Environmental Radioactivity; 102(6), pp 605-613 (2011)
The Geological Survey of Sweden (SGU) has been conducting airborne gamma spectrometry measurements of natural radioactivity in Sweden for more than 40 years. Today, the database covers about 80% of the country's land surface. This article explores th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3969e60e00df0f049ae432ea10756e71
https://doi.org/10.1016/j.jenvrad.2011.03.010
https://doi.org/10.1016/j.jenvrad.2011.03.010
Autor:
Christer Samuelsson
Publikováno v:
FedCSIS
The stochastic simplex bisection (SSB) algorithm is evaluated against the collection of optimizers in the Python SciPy.Optimize module on a prominent test set. The SSB algorithm greatly outperforms all SciPy optimizers, save one, in exactly half the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::94a1af118d43f2d7b05b58f5865bc1d9
https://doi.org/10.15439/2015f47
https://doi.org/10.15439/2015f47
Autor:
Birgitta Roos, Christer Samuelsson
Publikováno v:
Journal of Environmental Radioactivity. 63:135-151
Glass is often used in radon surveys to estimate retrospective radon concentrations, as radon progenies are embedded in the upper surface layer. Experimental methods based on etching to determine the depth distribution of recoil-implanted 210Po in gl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::08af225e2732d2e0badc793f02c75f63
https://doi.org/10.1016/s0265-931x(02)00022-x
https://doi.org/10.1016/s0265-931x(02)00022-x