Zobrazeno 1 - 10
of 131
pro vyhledávání: '"Marja Siitari-Kauppi"'
Autor:
Joyce W. L. Ang, Arthur Bongrand, Samuel Duval, Jérôme Donnard, Ester M. Jolis, Satoshi Utsunomiya, Kenta Minomo, Risto Koivula, Marja Siitari-Kauppi, Gareth T. W. Law
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-13 (2024)
Abstract Radioactive particles often contain very high radioactivity concentrations and are widespread. They pose a potential risk to human health and the environment. Their detection, quantification, and characterization are crucial if we are to und
Externí odkaz:
https://doaj.org/article/90206370269a4ee7b666bc7710f84248
Publikováno v:
Photoacoustics, Vol 29, Iss , Pp 100443- (2023)
A photoacoustic detection of tritiated water (HTO) is presented. The method uses cantilever-enhanced photoacoustic spectroscopy (CEPAS) to reach sub-ppb sensitivity for HTO in the gas phase. A noise equivalent concentration of 0.88 ppb is reached wit
Externí odkaz:
https://doaj.org/article/ad3cfd92f3b24a2a8c67e3892cb34eeb
Autor:
Xiaodong Li, Juuso Sammaljärvi, Shuo Meng, Longcheng Liu, Marja Siitari-Kauppi, Andrew Martin
Publikováno v:
Minerals, Vol 12, Iss 2, p 231 (2022)
Three cationic tracers, Sr2+, Co2+ and Cs+ were tested with a modified electromigration device by applying 2V, 3V and 4V voltage gradients over an intact Grimsel granodiorite rock sample. An ideal plug-flow model and an advection-dispersion model wer
Externí odkaz:
https://doaj.org/article/e31c0621b4e2401793cb2f05526281ac
Autor:
Andreas Möri, Martin Mazurek, Kunio Ota, Marja Siitari-Kauppi, Florian Eichinger, Markus Leuenberger
Publikováno v:
Minerals, Vol 11, Iss 10, p 1072 (2021)
The porosity and pore geometry of rock samples from a coherent granodioritic rock body at the Grimsel Test Site in Switzerland was characterised by different methods using injection techniques. Results from in situ and laboratory techniques are compa
Externí odkaz:
https://doaj.org/article/c490b00847e84b729b5a0abfa51f2776
Autor:
Everton M. Bongiolo, Daniela E. Bongiolo, Paul Sardini, André S. Mexias, Marja Siitari-Kauppi, Márcia E.B. Gomes, Milton L.L. Formoso
Publikováno v:
Anais da Academia Brasileira de Ciências, Vol 79, Iss 3, Pp 503-517 (2007)
This work is an application of the 14C-Polymethylmethacrylate method to compare the porosity evolution between unaltered and propylitic-altered granites, using samples from Lavras do Sul region, Brazil. This method, when coupled with optical and elec
Externí odkaz:
https://doaj.org/article/3215b3add10848648662831b76cd8728
Autor:
Connaugh M. Fallon, William R. Bower, Brian A. Powell, Francis R. Livens, Ian C. Lyon, Alana E. McNulty, Kathryn Peruski, J. Frederick W. Mosselmans, Daniel I. Kaplan, Daniel Grolimund, Peter Warnicke, Dario Ferreira-Sanchez, Marja Siitari Kauppi, Gianni F. Vettese, Samuel Shaw, Katherine Morris, Gareth T.W. Law
Uranium dioxide (UO2) and metaschoepite (UO3•nH2O) particles have been identified as contaminants at nuclear sites. Understanding their behavior and impact is crucial for safe management of radioactively contaminated land and to fully understand U
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ca4d307e85d82a4e39105082cc93326c
http://hdl.handle.net/10138/355901
http://hdl.handle.net/10138/355901
Publikováno v:
Applied Geochemistry. 153:105655
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::218652d43284f417690dcbc6b7865cfb
https://doi.org/10.1016/j.apgeochem.2023.105655
https://doi.org/10.1016/j.apgeochem.2023.105655
Autor:
Xiaoqing Yuan, Qinhong Hu, Xiang Lin, Chen Zhao, Qiming Wang, Yukio Tachi, Yuta Fukatsu, Shoichiro Hamamoto, Marja Siitari-Kauppi, Xiaodong Li
Publikováno v:
Journal of Hydrology. 618:129172
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a6b3fdcf81090d67ea4789b0408acfa0
https://doi.org/10.1016/j.jhydrol.2023.129172
https://doi.org/10.1016/j.jhydrol.2023.129172
The sorption of Ra on Olkiluoto biotite in the context of deep geological disposal of spent nuclear fuel was studied with isotherm batch sorption experiments. Ba was used as an analog for Ra in the experiments and modeling studies. A wide concentrati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9480ceda3bbc2c67e7e477999ccb45fc
http://hdl.handle.net/10138/344439
http://hdl.handle.net/10138/344439
Publikováno v:
Scientific Reports, Vol 10, Iss 1, Pp 1-12 (2020)
Scientific Reports
Scientific Reports
This study aims to further develop the 14C-PMMA porosity calculation method with a novel autoradiography technique, the Micro-pattern gas detector autoradiography (MPGDA). In this study, the MPGDA is compared with phosphor screen autoradiography (SPA
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2c51491f28a13f0a1004f2ffeadc67e3
http://link.springer.com/article/10.1038/s41598-020-65791-7
http://link.springer.com/article/10.1038/s41598-020-65791-7