Results 31 to 40 of about 24,619 (250)

Stakeholder perspectives on large-scale marine protected areas.

PLoS ONE, 2020
Large-scale marine protected areas (LSMPAs), MPAs greater than 100,000km2, have proliferated in the past decade. However, the value of LSMPAs as conservation tools is debated, in both global scientific and policy venues as well as in particular sites. To
Evan Artis, Noella J Gray, Lisa M Campbell, Rebecca L Gruby, Leslie Acton, Sarah Bess Zigler, Lillian Mitchell   +6 more
doaj   +1 more source

The worldwide costs of marine protected areas [PDF]

Proceedings of the National Academy of Sciences, 2004
Declines in marine harvests, wildlife, and habitats have prompted calls at both the 2002 World Summit on Sustainable Development and the 2003 World Parks Congress for the establishment of a global system of marine protected areas (MPAs). MPAs that restrict fishing and other human activities conserve habitats and populations and, by exporting biomass ...
Balmford, A., Gravestock, P., Hockley, N., McClean, C.J., Roberts, C.M.   +4 more
openaire   +4 more sources

Characterization of Aluminized Layers on Inconel‐738 Alloy: Microstructure, Modeling of Aluminizing Kinetics, and Thermal Behavior

Advanced Engineering Materials, EarlyView.
This study explored how effective nickel aluminide coatings are obtained in providing oxidation resistance applied to the Inconel 738 alloy, modeling with diffusion models. In the present study, kinetics and thermal behavior of the Inconel 738 alloy were studied by the low‐temperature thermoreactive aluminizing process, which was carried out at 625°C ...
Gozde Celebi Efe, Tuba Yener, Suayb Cagri Yener, Mourad Keddam, Cuma Bindal   +4 more
wiley   +1 more source

Marine protected areas in 'nonlinear' ecosystems [PDF]

Proceedings of the Royal Society of London. Series B: Biological Sciences, 2003
The very large changes observed within marine communities, owing to excessive harvesting, have been attributed to switches between alternative stable states. Correspondingly large reductions in overall fishing effort are usually difficult to implement.
John H, Steele, Andrew R, Beet
openaire   +2 more sources

Productivity‐Driven Optimization of Laser Powder Bed Fusion Parameters for IN718 Superalloy: Process Control, Microstructure, and Mechanical Properties

Advanced Engineering Materials, EarlyView.
This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat, Guido Barale, John Stavridis, Ehsan Norouzi, Jin‐Yoo Suh, Dong‐Ik Kim, Luca Iuliano, Abdollah Saboori   +7 more
wiley   +1 more source

Quality of marine protected areas is critical to achieving global biodiversity targets

npj Ocean Sustainability
Summarising CBD target 3 to “30 × 30” emphasizes area coverage, but conservation success depends on MPA quality. Many existing MPAs are under-protected, and rapidly designating new areas risks creating ‘paper parks’ without ecological or social benefits.
Fabrice Stephenson, Barbara Horta e Costa, Anna M. Addamo, Paula Bueno, Mark John Costello, Nigel Dudley, Patrick A. Eskuche-Keith, Helen E. Fox, David Gill, Cesc Gordó-Vilaseca, Kirsten Grorud-Colvert, Carissa Klein, Pippa J. Moore, Lance E. Morgan, Katharine B. Nalven, Felipe Paredes, Elizabeth P. Pike, Madhu Rao, Jenna Sullivan-Stack, Heidi S. W. Weiskel, Lauren Wenzel, Sue Wells, Joachim Claudet   +22 more
doaj   +1 more source

Electrochemical Behavior of Flame‐Sprayed Sc‐Doped AlCoCrFeMo High‐Entropy Alloy Coatings in 3.5% Sodium Chloride Solution

Advanced Engineering Materials, EarlyView.
Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar, Akash Vyas, Mohammad Aatif Qazi, Nashit Jalal, Maria Ophelia Jarligo, Mostafa Yakout, Jing Liu, André McDonald   +7 more
wiley   +1 more source

Influence of Si Content and Milling Duration on the Microstructure and Mechanical–Tribological Properties of AlCoCrFeNiSi High‐Entropy Alloys

Advanced Engineering Materials, EarlyView.
Si‐doped AlCoCrFeNi high‐entropy alloys are synthesized by mechanical alloying to reveal the effect of Si content and milling time on phase evolution, microstructural refinement, and tribological behavior. A transition from FCC to BCC structure, significant grain refinement, and enhanced hardness and wear resistance are achieved, with the 4 at% Si ...
Mustafa Okumuş, Mehmet Emin Demir, Sercan Özpınar   +2 more
wiley   +1 more source

Impact of a local, coastal community based management regime when defining marine protected areas: Empirical results from a study in Okinawa, Japan.

PLoS ONE, 2019
There is a growing impetus to increase marine protected areas coverage globally from 6% to 30% in 2030. Successfully establishing and maintaining marine protected areas require incorporating public preferences into their establishment and management.
Payal Shah, Sahan T M Dissanayake, Yoko Fujita, Paulo A L D Nunes   +3 more
doaj   +1 more source

Legal Analysis of Current Indonesia's Marine Protected Areas Development

Sriwijaya Law Review, 2021
This paper aims to conduct a legal analysis of the development of Marine Protected Areas (MPAs) in Indonesia. This article discusses the international legal framework and national legislation related to MPAs, progress and control, and problems in ...
Adrian Nugraha
doaj   +1 more source