Results 51 to 60 of about 2,250,020 (395)

The significance of vegetation, fire and man in the stabilisation of sand dunes near the Warburton Ranges, Central Australia [PDF]

open access: yes, 1971
The vegetation cover of sand dunes and sandplain country in a part of Central Australia is aperiodically destroyed by fire, caused by lightning and Aboriginal activities.
Conacher, A.J.
core   +1 more source

Initial Plant Growth in Sand Mine Spoil Amended with Peat Moss and Fertilizer Under Greenhouse Conditions: Potential Species for Use in Reclamation [PDF]

open access: yes, 2012
The Great Lakes Basin exhibits the largest collection of freshwater sand dunes in the world. Sand dunes are ecologically important and support a unique assemblage of flora and fauna. Sand dunes are also economically valuable. However, when sand dunes are
Aschenbach, Todd A.   +5 more
core   +2 more sources

Evidence for the critical role of nanoscale surface roughness on the retention and release of silver nanoparticles in porous media. [PDF]

open access: yes, 2020
Although nanoscale surface roughness has been theoretically demonstrated to be a crucial factor in the interaction of colloids and surfaces, little experimental research has investigated the influence of roughness on colloid or silver nanoparticle (AgNP)
Bradford, Scott A   +5 more
core   +1 more source

Multimodal Mechanical Testing of Additively Manufactured Ti6Al4V Lattice Structures: Compression, Bending, and Fatigue

open access: yesAdvanced Engineering Materials, EarlyView.
In this experimental study, the mechanical properties of additively manufactured Ti‐6Al‐4V lattice structures of different geometries are characterized using compression, four point bending and fatigue testing. While TPMS designs show superior fatigue resistance, SplitP and Honeycomb lattice structures combine high stiffness and strength. The resulting
Klaus Burkart   +3 more
wiley   +1 more source

XRootD S3 Gateway for WLCG Storage [PDF]

open access: yesEPJ Web of Conferences
The S3 Gateway is a server based application that provides a bridge between protocols and security used in the HEP community to S3 protocols and its associated security model.
Hanushevsky Andrew, Yang Wei
doaj   +1 more source

Can vitamin D status influence the effect of stress on planning and problem-solving? A randomized control trial

open access: yesFood & Nutrition Research, 2023
Background: Nutritional interventions may serve as a stress resilience strategy with important implications for human health. Objective: The aim of this study was to investigate the effect of vitamin D supplementation throughout wintertime on problem ...
Anita L. Hansen   +8 more
doaj   +1 more source

Unidirectional Tape‐Based Composites from Hemp and Pineapple Leaf Fiber: Mechanical Performance in Conventional and Bio‐Based Matrices

open access: yesAdvanced Engineering Materials, EarlyView.
The study investigates novel semi‐finished products made of unidirectionally arranged hemp or pineapple leaf fiber‐reinforced composites produced from different matrices. The materials are analyzed in terms of their mechanical and interfacial properties and void content.
Nina Graupner   +22 more
wiley   +1 more source

A compact topology for sand automata [PDF]

open access: yes, 2008
In this paper, we exhibit a strong relation between the sand automata configuration space and the cellular automata configuration space. This relation induces a compact topology for sand automata, and a new context in which sand automata are homeomorphic
Dennunzio, Alberto   +2 more
core   +3 more sources

On the shape of barchan dunes

open access: yes, 2005
Barchans are crescent-shaped sand dunes forming in aride regions with unidirectional wind and limited sand supply. We report analytical and numerical results for dune shapes under different environmental conditions as obtained from the so-called `minimal
Bagnold R A   +14 more
core   +1 more source

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