Results 141 to 150 of about 116,148 (294)

The last glacial cycle in western Norway—extensive MIS 5d glaciation, multiple glacial advances and LGM glacial advance phases

open access: yesBoreas, EarlyView.
Raised marine MIS 5c sediments evidence extensive preceding (5d) glaciation in western Norway. This is the first out of five (or six) major Weichselian glacier advances that seem to correspond to North Atlantic sea surface cooling periods. Till beds capping the marine sediments show stages of pre‐LGM advance and subsequent retreat.
Eiliv Larsen   +9 more
wiley   +1 more source

Studies of uranium-sodium suspensions, Part 2 - hydrodynamic, metallurgical and mechanical effects: general conclusions.

open access: yes, 1961
Hydrodynamic behaviour of a 0.76 atomic per cent, uranium in sodium suspension has been explored for velocities up to 8.3 ft/sec, and temperatures up to 625°C. The influence of velocity and temperature on suspension behaviour is described. Mechanical and
Bett, FL   +3 more
core  

A Territorial Approach to Transitioning Oil and Gas Producing Regions: Comparative Practices and Prospects for Canada

open access: yesCanadian Public Administration, EarlyView.
Abstract Oil and gas transitions are relatively new and especially difficult because the sector is large, economically central, and deeply embedded in national energy systems. Territorial approaches—grounded in regional political economies, institutions, and community impacts—offer a politically feasible way to begin meaningful oil and gas transitions ...
Tamara Krawchenko, Sophie Kiernan
wiley   +1 more source

United States Department of Energy Grand Junction Office Report PGJ/F-017(82)

open access: yes, 1982
Appendices containing data on uranium availability to accompany a report on U.S.
Perniciaro, F.T., Craig, Lawrence C.
core  

Appraisal of Six Natural Mica Reference Materials for In Situ Rb‐Sr Geochronology

open access: yesGeostandards and Geoanalytical Research, EarlyView.
Key Points Evaluated six natural mica reference materials for in situ LA‐ICP‐MS/MS Rb‐Sr geochronology using geochemical, microstructural and isotopic characterisation. Identified robust primary reference materials: Mount Dromedary biotite (99.37 Ma) and Mica‐Fe biotite (307.75 Ma). La Posta biotite and Högsbo muscovite are suitable secondary reference
Hugo K.H. Olierook   +38 more
wiley   +1 more source

United States Department of Energy Grand Junction Office Report PGJ/F-003(82)

open access: yes, 1982
Appendices containing uranium occurrence reports for the Okanogan Quadrangle in addition to a table of chemical analyses to accompany a report on U.S.
Powell, L. K.   +2 more
core  

Joint and Rapid Determination of 210Pb-210Bi-210Po in Rock, Soil and Sediment Samples by Constant Temperature Spontaneous Deposition on Cu-foil with Gross α and Gross β Counting

open access: yesYankuang ceshi, 2013
Measurement techniques of uranium series nuclides 210Pb, 210Bi and 210Po are relatively independent at present for most cases, and there are still some technical issues that need to be overcome.
WANG Yu-xue   +5 more
doaj  

Hydrochem, an Integrated R Package for the Analysis and Visualization of Hydrochemical Data

open access: yesGroundwater, EarlyView.
We present hydrochem, an open‐source R package that simplifies hydrochemical data analysis through reproducible workflows, automated calculations, and advanced visualization tools. It enables flexible and reliable interpretation of complex water chemistry datasets, supporting researchers and practitioners in groundwater quality assessment and resource ...
Guillaume Cinkus, Raphaël Bondu
wiley   +1 more source

The Origins of Ploem's Filter Cube: A Pandora's Box

open access: yesJournal of Microscopy, EarlyView.
Abstract Ploem's filter cube, central to modern epifluorescence microscopy, integrates three matched optical components: an excitation filter, an emission filter, and a dichroic mirror. Together, these elements enable the separation of excitation and emission light paths, producing high‐contrast fluorescence images.
Jack Gordon   +3 more
wiley   +1 more source

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