| |
|
|
|
|
|
|
|
|
1. |
Record Nr. |
UNINA9910495212103321 |
|
|
Autore |
Wu Chung-Che |
|
|
Titolo |
Advanced and applied studies on ultra-trace rare earth elements (REEs) in carbonates using SN-ICPMS and LA-ICPMS / / Chung-Che Wu |
|
|
|
|
|
|
|
Pubbl/distr/stampa |
|
|
Singapore : , : Springer, , [2021] |
|
©2021 |
|
|
|
|
|
|
|
|
|
ISBN |
|
|
|
|
|
|
Edizione |
[1st ed. 2021.] |
|
|
|
|
|
Descrizione fisica |
|
1 online resource (XV, 64 p. 22 illus., 16 illus. in color.) |
|
|
|
|
|
|
Collana |
|
Springer Theses, Recognizing Outstanding Ph.D. Research, , 2190-5061 |
|
|
|
|
|
|
|
|
Disciplina |
|
|
|
|
|
|
Soggetti |
|
Geochemistry |
Climatology |
Environmental chemistry |
|
|
|
|
|
|
|
|
Lingua di pubblicazione |
|
|
|
|
|
|
Formato |
Materiale a stampa |
|
|
|
|
|
Livello bibliografico |
Monografia |
|
|
|
|
|
Nota di contenuto |
|
Introduction -- Approach I: Direct determination of carbonate REES in femtogram quantities by solution nebulization-inductively coupled plasma mass spectrometry(SN-ICPMS) -- Application I: Pinatubo volcanic eruption exacerbated an abrupt coral mortality event in 1991 summer -- Approach II: Highly-sensitive open-cell laser ablation-inductively coupled plasma mass spectrometry(LA-ICPMS) approaches for the quantification of rare earth elements in carbonates at parts-per-billion levels -- Application II: Stalagmite-based micro-domain tephra fingerprints in East Timor between 88 to 78 ka BP -- Summary and perspective. |
|
|
|
|
|
|
|
|
Sommario/riassunto |
|
This book provides two state-of-the-art quantitative techniques to determine ultra-trace rare earth elements (REEs) in natural carbonates using solution nebulization-inductively coupled plasma mass spectrometry (SN-ICPMS) and laser ablation-inductively coupled plasma mass spectrometry (LA-ICPMS) with respective applications were presented in this dissertation. These techniques were applied to natural carbonates, including corals and stalagmites, to understand volcano eruptions and the impacts on modern biosystem and paleoclimate regimes. In the first SN-ICPMS protocol, direct measurements for femtogram quantity carbonate samples without chemical separation |
|
|
|
|
|
|
|
|
|
|
steps can offer accurate and high-precision analysis (±1.9-6.5%, 2σ) with a high sample throughput of 8-10 samples/hr routinely. Application to modern Porites corals collected from South China Sea region, the anomalies of REE contents and Al/Ca ratios associated with micro-domain images, register modern coral reefs could be exacerbated by volcanic eruptions. In the second protocol, a high-sensitivity quantitative open-cell LA-ICPMS technique has been established to allow direct sampling on stalagmite surface in the atmospheric air. This technique improved limits of detection down to sub-ng/g range and promises analyses of carbonate REE profiles at the single digit parts-per-billion (ppb) levels. Application to a 15-cm stalagmite collected from East Timor reveals two peaks of REE contents by at least one order of magnitude, possibly due to volcanic ash preserved in stalagmite. Both improved SN-ICPMS and LA-ICPMS techniques highlight the high-sensitivity and high-temporal-resolution carbonate REE analyses for corals and stalagmites, with great potential to other natural carbonates such as travertine, tufa, and flowstone, benefit our understanding of paleoclimatic and paleoenvironmental dynamics. |
|
|
|
|
|
|
|
|
|
|
|
|
|
2. |
Record Nr. |
UNINA9910586623703321 |
|
|
Titolo |
Automated Reasoning with Analytic Tableaux and Related Methods : 24th International Conference, TABLEAUX 2015, Wroclaw, Poland, September 21-24, 2015, Proceedings / / edited by Hans De Nivelle |
|
|
|
|
|
|
|
Pubbl/distr/stampa |
|
|
Cham : , : Springer International Publishing : , : Imprint : Springer, , 2015 |
|
|
|
|
|
|
|
|
|
ISBN |
|
|
|
|
|
|
Edizione |
[1st ed. 2015.] |
|
|
|
|
|
Descrizione fisica |
|
1 online resource (XVI, 355 p. 70 illus. in color.) |
|
|
|
|
|
|
Collana |
|
Lecture Notes in Artificial Intelligence, , 2945-9141 ; ; 9323 |
|
|
|
|
|
|
Disciplina |
|
|
|
|
|
|
Soggetti |
|
Artificial intelligence |
Machine theory |
Computer programming |
Software engineering |
Computer science - Mathematics |
Discrete mathematics |
Computer science |
Artificial Intelligence |
Formal Languages and Automata Theory |
Programming Techniques |
Software Engineering |
Discrete Mathematics in Computer Science |
Computer Science Logic and Foundations of Programming |
|
|
|
|
|
|
|
|
Lingua di pubblicazione |
|
|
|
|
|
|
Formato |
Materiale a stampa |
|
|
|
|
|
Livello bibliografico |
Monografia |
|
|
|
|
|
Note generali |
|
Bibliographic Level Mode of Issuance: Monograph |
|
|
|
|
|
|
Sommario/riassunto |
|
This book constitutes the refereed proceedings of the 24th International Conference on Automated Reasoning with Analytic Tableaux and Related Methods, TABLEAUX 2015, held in Wroclaw, Poland, in September 2015. The 19 full papers and 2 papers presented in this volume were carefully reviewed and selected from 34 submissions. They are organized in topical sections named: tableaux calculi; sequent calculus; resolution; other calculi; and applications. . |
|
|
|
|
|
|
|
| |