Results 71 to 80 of about 680,096 (228)

Refining the timing of Middle Pleistocene (MIS 12 to MIS 6) ice advances into northern central Europe: sedimentological analysis and single‐grain luminescence dating of glaciotectonic complexes and tunnel‐valley fills

Boreas, EarlyView.
We summarize the current state of knowledge on the age of the Middle Pleistocene ice advances into northern central Europe and provide 25 new single‐grain feldspar luminescence ages of Elsterian and Saalian glacigenic sediments to constrain the age of the ice advances and their tentative correlation with marine isotope stages/substages.
Niklas von Soest, Neda Rahimzadeh, Debra Colarossi, Falko Malis, Tobias Lauer, Wera Sander‐Beuermann, Yvonne Spychala, Christian Brandes, Runa Fälber, Sumiko Tsukamoto, Jutta Winsemann   +10 more
wiley   +1 more source

Progressive Convex Hull Simplification

Computer Graphics Forum, EarlyView.
Abstract Convex hulls are useful as tight bounding proxies for a variety of tasks including collision detection, ray intersection, and distance computation. Unfortunately, the complexity of polyhedral convex hulls grows linearly with their input. We consider the problem of conservatively simplifying a convex hull to a specified number of half‐spaces ...
Alec Jacobson
wiley   +1 more source

Evolutionary framework and tribal circumscription of Amaranthaceae sensu stricto based on a comprehensive phylogenomic analysis

Cladistics, EarlyView.
Abstract The evolutionary history of Amaranthaceae sensu stricto (s.s.) has been shaped by multiple whole‐genome duplications and rapid radiations, producing an ecologically diverse lineage whose internal relationships have long remained unresolved.
Tina Kiedaisch, Anže Žerdoner Čalasan, Ross A. McCauley, Gudrun Kadereit   +3 more
wiley   +1 more source

The Laser Scanner Technique: A Tool for Determining Shear Strength Parameters of Rock Mass Discontinuities

Applied Sciences
When evaluating the shear strength of rock mass discontinuities, certain challenges arise due to the difficulty in quantifying the roughness characteristics of surfaces and the strength of asperities.
Margherita Zimbardo, Alessandra Nocilla, Anna Scotto di Santolo   +2 more
doaj   +1 more source

Schmidt hammer R-values of coastal alluvial fan surface generations at the south-central coast of the Atacama Desert

This dataset contains Schmidt hammer R-values from, in total, 23 morphostratigraphic units of 12 multi-stage coastal alluvial fans distributed along the south-central coast of the Atacama Desert.
Walk, Janek
core   +1 more source

The Geoeconomic Turn on Stage: National Identity and the Interpretation of the EU's Trade Sustainability Diplomacy in Indonesia and Vietnam

JCMS: Journal of Common Market Studies, EarlyView.
Abstract In the context of the European Union's (EU's) geoeconomic shift, the governance of Trade and Sustainable Development (TSD) has become a central yet contested pillar of its external trade policy. Accusations of green colonialism highlight the stakes around how partner countries interpret the EU's normative agenda.
Camille Nessel, Zhihang Wu
wiley   +1 more source

Schmidt Hammer Rebound' users guide: IBM-PC/AT computer calculation of uniaxial compressive strength using the Schmidt Hammer

, 1986
Le présent rapport décrit le programme "Rebond du marteau de Schmidt" (Schmidt Hammer Rebound) qui permet de calculer la résistance à la compression uniaxiale de la roche à l'aide de nombres-indices du rebond du marteau de Schmidt. Ce programme est écrit en langage BASIC A Version 3,10 pour un ordinateur IBM-PC/AT.
M Issard, T R C Aston
openaire   +1 more source

Hammer Time: Using the Schmidt Hammer to Improve the Forecasting Accuracy of the Rockfall Activity Index (RAI) [PDF]

69A3551747110The Schmidt hammer is a widely used and inexpensive instrument for estimating rock strength either in the lab or in the field. Our research team tested the accuracy and repeatability of the Schmidt hammer to estimate rock strength on six ...
Pacific Northwest Transportation Consortium (PacTrans) (UTC), University of Washington. University Transportation Center for Region 10, University of Alaska Fairbanks, Darrow, Margaret M., Herrman, Daisy M   +4 more
core  

First attempt to combine terrestrial cosmogenic nuclide (10Be) and Schmidt hammer relative-age dating: Strauchon Glacier, Southern Alps, New Zealand

, 2009
This study provides the first attempt to combine terrestrial (in situ) cosmogenic nuclide (\(^{10}\)Be) surface exposure dating with Schmidt hammer relative-age dating for the age estimation of Holocene moraines at Strauchon Glacier, Southern Alps, New ...
Winkler Stefan, Winkler, Stefan
core   +1 more source

A deeper look into the diversity of suckermouth catfishes (Mochockidae: Chiloglanis Peters 1868) of southern Africa, with the description of four new species

Journal of Fish Biology, EarlyView.
Abstract Suckermouth catfishes of the genus Chiloglanis Peters 1868 are small and predominantly rheophilic fishes endemic to Africa. This genus is quite diverse, with over 70 species distributed across most river systems on the continent, except for the Cape Fold ecoregion and most of northern Africa.
Tadiwa Isaac Mutizwa, Tholoana Ntokoane, Albert Chakona   +2 more
wiley   +1 more source