Search results for "Silver"
showing 10 items of 697 documents
Urīnvielas ietekme uz parastā bērza (Betula pendula Roth) koksnes iekrāsojumu izraisošām sēnēm
2020
Šī darba mērķis bija noskaidrot urīnvielas ietekmi uz parastā bērza Betula pendula Roth. koksnes iekrāsojumu izraisošām sēnēm. Eksperimentā izmantotos baļķus ievāca zinātniskās izpētes mežā un kokmateriālu krautuvē. Koksnes materiāli tika apstrādāti ar urīnvielu, 50 % veikti mizas bojājumi. Paraugus inkubēja trīs, astoņas, deviņas un desmit nedēļas, lai novērtētu koksnes patogēno sēņu attīstību. Ar urīnvielu apstrādātajos paraugos novēroja lielāku koksnes iekrāsojumu attīstību. Ilgstoša inkubācija un mizas bojājumi palielināja koksnes iekrāsojuma attīstību. Paraugos, kas ievākti kokmateriālu krautuvē, novēroja lielāku patogēno sēņu daudzveidību. Secināts, ka urīnvielas apstrāde neaptur koks…
FIB-FESEM and EMPA results on Antoninianus silver coins for manufacturing and corrosion processes
2018
[EN] A set of ancient Antoninianus silver coins, dating back between 249 and 274¿A.D. and minted in Rome, Galliae, Orient and Ticinum, have been characterized. We use, for the first time, a combination of nano-invasive (focused ion beam-field emission scanning electron microscopy-X-ray microanalysis (FIB-FESEM-EDX), voltammetry of microparticles (VIMP)) and destructive techniques (scanning electron microscopy (SEM-EDX) and electron microprobe analysis (EMPA)) along with non-invasive, i.e., micro-Raman spectroscopy. The results revealed that, contrary to the extended belief, a complex Ag-Cu-Pb-Sn alloy was used. The use of alloys was common in the flourishing years of the Roman Empire. In th…
Kora brzozy brodawkowatej jako biomonitor zanieczyszczenia powietrza metalami ciężkimi
2018
Celem przeprowadzonych badań była ocena możliwości wykorzystania kory brzozy brodawkowatej (Betula pendula Roth) w biomonitoringu terenów leśnych. Do badań wykorzystano korę drzew rosnących na obszarze Beskidów i Puszczy Boreckiej. W korze, metodą absorpcyjnej spektrometrii atomowej ze wzbudzeniem w płomieniu (F-AAS), oznaczono stężenia metali ciężkich: Mn, Fe, Ni, Cu, Zn, Cd oraz Pb. Na podstawie przeprowadzonych badań stwierdzono sezonowe zmiany stężenia analitów. Wykazano również, że kora brzozy brodawkowatej może być wykorzystywana jako bioindykator do oceny zanieczyszczenia aerozolu atmosferycznego na tych obszarach np. metalami ciężkimi. Ważne jest jednak, aby dokonać walidacji poszcz…
Data and code for "Dipolar coupling of nanoparticle-molecule assemblies: An efficient approach for studying strong coupling"
2021
The data includes the optical excitations of benzene, the optical spectra of coupled benzene-Al NP systems, and fits of the spectra to the coupled oscillator model. The optical spectra in question have been obtained in the dipolar coupling approximation and analyzed in the article "Dipolar coupling of nanoparticle-molecule assemblies: An efficient approach for studying strong coupling" by Jakub Fojt, Tuomas P. Rossi, Tomasz J. Antosiewicz, Mikael Kuisma and Paul Erhart. Scripts for processing of the data, which extract optical spectra from NWChem output files, and fit optical spectra to the coupled oscillator model, are also included. The scripts are written in Python and require …
CCDC 2089400: Experimental Crystal Structure Determination
2021
Related Article: Tuan-Anh Nguyen, Marie-Jose�� Penouilh, He��le��ne Cattey, Nadine Pirio, Paul Fleurat-Lessard, Jean-Cyrille Hierso, Julien Roger|2021|Organometallics|40|3571|doi:10.1021/acs.organomet.1c00465
CCDC 2064896: Experimental Crystal Structure Determination
2021
Related Article: Jas S. Ward, Antonio Frontera, Kari Rissanen|2021|Chem.Commun.|57|5094|doi:10.1039/D1CC01505B
CCDC 2064898: Experimental Crystal Structure Determination
2021
Related Article: Jas S. Ward, Antonio Frontera, Kari Rissanen|2021|Chem.Commun.|57|5094|doi:10.1039/D1CC01505B
CCDC 1811378: Experimental Crystal Structure Determination
2018
Related Article: Juanzhu Yan, Jun Zhang, Xumao Chen, Sami Malola, Bo Zhou, Elli Selenius, Xiaomin Zhang, Peng Yuan, Guocheng Deng, Kunlong Liu, Haifeng Su, Boon K. Teo, Hannu Häkkinen, Lansun Zheng, Nanfeng Zheng|2018|National Science Review|5|694|doi:10.1093/nsr/nwy034
CCDC 1899329: Experimental Crystal Structure Determination
2020
Related Article: Ondřej Jurček, Rakesh Puttreddy, Filip Topić, Pia Jurček, Pezhman Zarabadi-Poor, Hendrik V. Schröder, Radek Marek, Kari Rissanen|2020|Cryst.Growth Des.|20|4193|doi:10.1021/acs.cgd.0c00532
CCDC 1428884: Experimental Crystal Structure Determination
2015
Related Article: Juanzhu Yan, Haifeng Su, Huayan Yang, Sami Malola, Shuichao Lin, Hannu Häkkinen, and Nanfeng Zheng|2015|J.Am.Chem.Soc.|137|11880|doi:10.1021/jacs.5b07186