Results 71 to 80 of about 944,627 (333)

Governance challenges in scaling up from individual MPAs to MPA networks [PDF]

Aquatic Conservation: Marine and Freshwater Ecosystems, 2014
ABSTRACTWith the drive for greater numbers and areas of MPAs to be put in place to meet national and international targets, challenges have emerged in both the establishment and development of sustainable governance of the networks of sites that are emerging.Using 12 presentations given in a workshop on ‘Improving participation for better governance of
Solandt, Jean-Luc, Jones, Peter J. S., Duval-Diop, Dominique, Kleiven, Alf Ring, Frangoudes, Katia   +4 more
openaire   +2 more sources

Interactions between Molten High‐Silicon Electrical Steels and Carbon‐Bonded MgO Refractories Based on Recyclates

Advanced Engineering Materials, EarlyView.
This study examines how several molten high‐silicon electrical steels interact with both conventional and recycled MgO–C refractories. For this, various immersion experiments are conducted. In addition to infiltration, a number of mechanisms are identified and explained that control the corrosion of the refractory material.
Lukas Neubert, Matheus Roberto Bellé, Anton Yehorov, Anhelina Mospan, Till M. J. Stadtmüller, Seetharaman Sridhar, Christos G. Aneziris, Olena Volkova   +7 more
wiley   +1 more source

Residual stress and distortion analysis of laser powder bed additive manufactured parts using the incremental hole drilling method and the cantilever method

Journal of Advanced Joining Processes
This study investigates residual stresses and distortion in additively manufactured 316L austenitic steel and M350 martensitic high strength steel produced by laser powder bed fusion under varying process parameters.
Moritz Käß, Stefan Weihe, Martin Werz
doaj   +1 more source

Dispersal of larval and juvenile seabream: Implications for Mediterranean marine protected areas [PDF]

, 2015
In the marine context, information about dispersal is essential for the design of networks of marine protected areas (MPAs). Generally, most of the dispersal of demersal fishes is thought to be driven by the transport of eggs and larvae in currents, with
Calo A., De Benedetto G., Di Franco A., Guidetti P., Pennetta A., Planes S.   +5 more
core   +1 more source

Elinvar Materials: Recent Progress and Challenges

Advanced Engineering Materials, EarlyView.
Elinvar materials, exhibiting temperature‐invariant elastic modulus, are critical for precision instruments and emerging technologies. This article reviews recent progress in the field, with a focus on the anomalous thermoelastic behavior observed in key material systems.
Wenjie Li, Yang Ren
wiley   +1 more source

Effect of tool material on joint quality in friction stir welding of aluminum-steel tailor welded blanks

Journal of Advanced Joining Processes
Friction stir welding (FSW) enables high-strength joints between dissimilar materials such as aluminum and steel and is particularly suited for hybrid tailor welded blanks in deep drawing.
Robin Göbel, Maximilian Keppler, Stefan Weihe, Martin Werz   +3 more
doaj   +1 more source

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

Advanced 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, Jonas Schmidt, Anastasiya Toenjes, Johanna Eisenträger   +3 more
wiley   +1 more source

On the Influence of Control Type and Strain Rate on the Lifetime of 50CrMo4

Metals, 2020
In this study, we investigate the influence of control type and strain rate on the lifetime of specimens manufactured from 50CrMo4. This influence is described by a strain rate dependent method that uses cyclic stress strain curves to correct ...
Max Benedikt Geilen, Josef Arthur Schönherr, Marcus Klein, Dominik Sebastian Leininger, Alexander Giertler, Ulrich Krupp, Matthias Oechsner   +6 more
doaj   +1 more source

Starfsréttindi MPA-náms?

Veftímaritið Stjórnmál og stjórnsýsla, 2010
Markmið greinarinnar er að benda á mikilvægi þess að til starfa innan stjórnsýslunnar veljist fólk með bestu undirbúningsmenntun sem völ er á fyrir tiltekin störf. Menntun stjórnsýslufræðinga er vönduð en MPA-menntunar er ekki krafist innan stjórnsýslunnar.
openaire   +1 more source

PBF‐LB/M of Ti‐6Al‐4V: High‐Pressure Solution Treatment and Aging for Applications in a Sustainable Aerospace

Advanced Engineering Materials, EarlyView.
Additive manufacturing (AM) allows great geometric freedom for lightweight components. As parts are progressively optimized exploiting potentials in AM leading in smaller material cross sections, high pressure solution treating and aging (STA) treatments show an enormous potential for strongly improving material properties.
Mika León Altmann, Andre Danzig, Freerk Syassen, Rainer Fechte‐Heinen, Anastasiya Toenjes   +4 more
wiley   +1 more source