Results 181 to 190 of about 1,389,993 (326)

Institutional options for managing rangelands [PDF]

open access: yes
"This brief considers the benefits and costs of alternative tenure and institutional arrangements and the impact of existing legal and policy frameworks on the sustainability and equity of pastoral production systems under three categories of ...
McCarthy, Nancy, Ngaido, Tidiane
core  

Biogenic amorphous calcium phosphate: a sustainable alternative for dentin remineralization. [PDF]

open access: yesBMC Oral Health
Madhubala MM   +4 more
europepmc   +1 more source

Advancing Wildfire‐Retardant Materials: Engineering Strategies for Direct and Indirect Suppression

open access: yesAdvanced Engineering Materials, EarlyView.
Here, the evolution, ecological impact, and performance of current fire‐retardant materials and suppression strategies are reviewed, offering an engineering perspective to address existing challenges and propose pathways for the development of more effective, scalable, and sustainable solutions to meet the demands of a changing climate. Wildfires cause
Changxin Dong   +4 more
wiley   +1 more source

Strategies for sustainable agricultural development in the East African highlands: [PDF]

open access: yes
Low agricultural productivity, land degradation and poverty are severe interrelated problems in the East African highlands. While the proximate causes of such problems are relatively well known, the underlying causes are many and complex, and depend upon
Ehui, Simeon K.   +2 more
core  

Influence of Heat Treatment on Microstructure and Mechanical Properties at Elevated Temperatures of Nonweldable Ni‐Based Alloy Printed by Fused Filament Fabrication

open access: yesAdvanced Engineering Materials, EarlyView.
The fused filament‐fabricated MAR‐M247 alloy without hot isostatic pressing shows the lowest porosity of 4%. Heat treatment at 1220 °C produces coarse precipitates and carbides. Specimens heat‐treated at 1220 °C exhibit higher tensile strength (683 MPa) and elongation (10%) at room temperature.
Haneen Daoud   +7 more
wiley   +1 more source

Novel Surface‐Based Bézier Metamaterials: A Higher Degree of Parametrization toward Tailoring the Effective Properties under Compression

open access: yesAdvanced Engineering Materials, EarlyView.
Cubic Bézier curves are used in the synthesis of novel surface‐based metamaterials with tunable mechanical properties. Surface‐based geometries are 3D printed and tested in compression. The resulting mechanical properties are correlated to changes in the shape of the base curve, with high potential in energy absorption through the adjustment of their ...
Alberto Álvarez‐Trejo   +2 more
wiley   +1 more source

Cardoon cake as a sustainable alternative ingredient in broiler feeding. [PDF]

open access: yesItal J Anim Sci
Mannelli F   +10 more
europepmc   +1 more source

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