Results 121 to 130 of about 69,223 (345)
Tomographic Reconstruction of Carboniferous Arthropods
Carboniferous fossils are often found as three-dimensional voids within siderite (FeCO3) nodules. Traditional techniques of study – splitting the host concretion and inspecting the surfaces revealed – do not allow the investigation of morphology within the part / counterpart, and prevent complete data recovery. X-ray micro-tomography (XMT) and 'virtual
Garwood, Russell, Garwood, Russell
openaire +5 more sources
Box Models of Volatile Cycles over the Entire Phanerozoic [PDF]
Three stand-alone geochemical box models have been developed to simulate globally coupled biogeochemical cycles. These models reflect the evolution of the participating biotic and abiotic constituents in marine and terrestrial environments, including the
Bartdorff, Oliver
core
A new fireworm (Amphinomidae) from the Cretaceous of Lebanon identified from three-dimensionally preserved myoanatomy [PDF]
© 2015 Parry et al. Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in ...
A Filippova+40 more
core +1 more source
A Different Perspective on the Solid Lubrication Performance of Black Phosphorous: Friend or Foe?
Researchers investigate black phosphorous (BP) as a standalone solid lubricant coating through ball‐on‐disc linear‐reciprocating sliding experiments in dry conditions. Testing on different metals shows BP doesn't universally reduce friction and wear. However, it achieves 33% friction reduction on rougher iron surfaces and 23% wear reduction on aluminum.
Matteo Vezzelli+5 more
wiley +1 more source
Ancient karst at the eastern slope of the Middle Urals and the Early-Middle Carboniferous boundary
The paleokarst occurrences associated with Lower Carboniferous limestones in the east of the Middle Urals are considered. We analyse the nature of the Early-Middle Carboniferous boundary.
G. A. Mizens+3 more
doaj
Molecular dynamics simulations are advancing the study of ribonucleic acid (RNA) and RNA‐conjugated molecules. These developments include improvements in force fields, long‐timescale dynamics, and coarse‐grained models, addressing limitations and refining methods.
Kanchan Yadav, Iksoo Jang, Jong Bum Lee
wiley +1 more source
On British Carboniferous Brachiopoda [PDF]
Four years have elapsed since I first commenced my researches among the Carboniferous Brachiopoda of Great Britain ; and I should certainly by this time have completed my task, had not the unfortunate delay in the publication of the last two or three volumes of the Palæontographical Society induced me to undertake other work which would not require to ...
openaire +2 more sources
Deformation Behavior of La2O3‐Doped Copper during Equal Channel Angular Pressing
By additions of strengthening elements and/or structure optimization, the mechanical properties of copper can be increased while keeping favorable electric conductivity. By combining addition of La2O3 and processing by equal channel angular pressing, substructure development is achieved, leading to increase in microhardness to more than double the ...
Lenka Kunčická+2 more
wiley +1 more source
On the Lower Divisions of the Carboniferous Rocks of the Forest of Dean [PDF]
E. Wethered
openalex +1 more source
Potential for stratiform base-metal sulphides in SW England [PDF]
The British Geological Survey (BGS) has recently re-evaluated the potential for stratiform base-metal sulphide mineralisation in Devon and east Cornwall (Rollin et al., 2001) (Figure 1). On the basis of their stratigraphy and tectonic setting the Lower
Benham, A.J.+3 more
core