Institution
ARPA-E
Government•Washington D.C., District of Columbia, United States•
About: ARPA-E is a government organization based out in Washington D.C., District of Columbia, United States. It is known for research contribution in the topics: Population & Climate change. The organization has 1161 authors who have published 1267 publications receiving 30049 citations. The organization is also known as: Advanced Research Projects Agency - Energy.
Topics: Population, Climate change, Precipitation, Snow, Air quality index
Papers published on a yearly basis
Papers
More filters
••
TL;DR: In this paper, a model of the circulation of fluids and interpret the temporal chemical and isotopic variations of both the thermal springs as well as the gas vents of the Umbria-Marche region of Italy is presented.
Abstract: Long-term geochemical monitoring performed in the seismic area of the Umbria-Marche region of Italy (i.e. Central
Apennines) has allowed us to create a model of the circulation of fluids and interpret the temporal chemical
and isotopic variations of both the thermal springs as well as the gas vents. Coincident with the last seismic crisis,
which struck the region in 1997-1998, an enhanced CO2 degassing on a regional scale caused a pH-drop in
all the thermal waters as a consequence of CO2 dissolution. Furthermore, much higher 3He/4He isotope ratios
pointed to a slight mantle-derived contribution. Radon activity increased to well above the ±2 sinterval of the earlier
seismic period, after which it abruptly decreased to very low levels a few days before the occurrence of the
single deep-located shock (March 26, 1998, 51 km deep). The anomalous CO2 discharge was closely related to
the extensional movement of the normal faults responsible for the Mw 5.7, 6.0 and 5.6 main shocks that characterized
the earlier seismic phase. In contrast, a clear compressive sign is recognizable in the transient disappearance
of the deep-originating components related to the Mw 5.3, 51 km-deep event that occurred on March 26,
1998. Anomalies were detected concomitantly with the seismicity, although they also occurred after the seismic
crisis had terminated. We argue that the observed geochemical anomalies were driven by rock permeability
changes induced by crustal deformations, and we describe how, in the absence of any release of elastic energy, the
detection of anomalies reveals that a seismogenic process is developing. Indeed, comprehensive, long-term geochemical
monitoring can provide new tools allowing us to better understand the development of seismogenesis.
23 citations
••
TL;DR: In this article, Taylor and Riato were supported by a Coaltech Research Association Research Fellowship and the South African National Research Foundation (NRF) incentive funding, respectively, and they presented their work.
23 citations
••
TL;DR: In this paper, the authors present the multidisciplinary methodology used and summarises the following management results: (i) contribution to identification of cold-water corals and provision of evidence to close part (∼16,000 km2) of the Hatton Bank (NE Atlantic) to bottom fishing; (ii) compilation of an international data base to identify VMEs on the slopes of the Grand Banks of Newfoundland, Flemish Pass, and Fenerish Cap (NW Atlantic) and to redefine areas currently closed to fishing; improvement of knowledge about deepwater ecosystems
23 citations
••
TL;DR: Low level liquid scintillation counting (LSC) is an attractive technique which can also be applied by laboratories lacking specific radiochemistry facilities and experience, and was used to check the presence of depleted uranium in Lake Garda.
Abstract: In our institute, different procedures have been developed to measure the radioactivity content of drinking water both in normal and in emergency situations, such as those arising from accidental and terrorist events. A single radiometric technique, namely low level liquid scintillation counting (LSC), has been used. In emergency situations a gross activity screening is carried out without any sample treatment by a single and quick liquid scintillation counting. Alpha and beta activities can be measured in more than one hundred samples per day with sensitivities of a few Bq/L. Higher sensitivity gross alpha and beta, uranium and radium measurements can be performed on water samples after specific sample treatments. The sequential method proposed is designed in such a way that the same water sample can be used in all the stages, with slight modifications. This sequential procedure was applied in a survey of the Lombardia district. At first tap waters of the 13 largest towns were examined, then a more detailed monitoring was carried out in the surroundings of Milano and Lodi towns. The high sensitivity method for the determination of uranium isotopes was used to check the presence of depleted uranium in Lake Garda. Reduced equipment requirements and relative readiness of radiochemical procedures make LSC an attractive technique which can also be applied by laboratories lacking specific radiochemistry facilities and experience.
22 citations
••
TL;DR: In this paper, the authors investigated the role of mechanochemical CO 2 production due to stimulation from the action of friction on calcite and found that the grinding action determines an abundant release of carbon dioxide, with a nonlinear trend that emulates the trend in the decrease in crystallinity.
22 citations
Authors
Showing all 1165 results
Name | H-index | Papers | Citations |
---|---|---|---|
Antonio Russo | 88 | 934 | 34563 |
John V. Guttag | 62 | 254 | 17679 |
Mauro Rossi | 56 | 407 | 13056 |
Gianpaolo Balsamo | 54 | 131 | 31691 |
David Evans | 52 | 130 | 13455 |
Barbara Stenni | 44 | 148 | 10859 |
Luigi Bisanti | 42 | 104 | 8560 |
Marco Fontana | 42 | 384 | 7526 |
Andrea Ranzi | 42 | 101 | 8090 |
Dario Mirabelli | 37 | 127 | 3842 |
Marco Turco | 32 | 78 | 2709 |
Stefania La Grutta | 31 | 141 | 2691 |
Maurizio Forte | 28 | 135 | 2962 |
Gianluigi de Gennaro | 28 | 86 | 2853 |
Giovanni Martinelli | 27 | 104 | 2439 |