Results 81 to 90 of about 21,156 (304)

Non‐Equilibrium Synthesis Methods to Create Metastable and High‐Entropy Nanomaterials

Advanced Science, EarlyView.
ABSTRACT Stabilizing multiple elements within a single phase enables the creation of advanced materials with exceptional properties arising from their complex composition. However, under equilibrium conditions, the Hume–Rothery rules impose strict limitations on solid‐state miscibility, restricting combinations of elements with mismatched crystal ...
Shuo Liu, Chaochao Dun, Jeffrey J. Urban, Mark T. Swihart   +3 more
wiley   +1 more source

Large Deformation Modeling of Trapdoor Test Using MLS-MPM [PDF]

Numerical Methods in Civil Engineering
Moving least squares material point method (MLS-MPM) is a new method to allow for sharp separation of particles and to reduce the cell-crossing error in the material point method simulations.
Omid Barani, Amir Maleki
doaj   +1 more source

Stress Propagation and Arching in Static Sandpiles

, 1996
We present a new approach to the modelling of stress propagation in static granular media, focussing on the conical sandpile constructed from a point source.
Cates, M. E., Claudin, P., Wittmer, J. P.   +2 more
core   +4 more sources

Did the Indian Green Revolution Change the Farm Size–Productivity Relationship?

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT We examine the relationship between farm size and productivity during India's Green Revolution, a period of rapid technological transformation. Using a unique panel of over 5000 Indian farm households that spans the Green Revolution (1971–1999), we show that the classic (linear) inverse farm size–productivity relationship gradually evolved ...
Rabail Chandio, Leah E. M. Bevis
wiley   +1 more source

Breaking Down Lignin: A Macromolecule's Path to the Nanoscale

Advanced Energy and Sustainability Research, EarlyView.
This section highlights lignin's critical role as a sustainable, multifunctional precursor for nanomaterial design. Its unique structure and abundance enable the creation of lignin‐based, lignin‐derived, and hybrid nanomaterials with tunable properties. Emphasis is placed on lignin's potential to drive innovation in nanotechnology, offering ecofriendly
Jelena Papan Djaniš, Jan Hočevar, Griša Grigorij Prinčič, Jernej Iskra   +3 more
wiley   +1 more source

Arching mechanism for large span flexible culverts with shallow soil covers

Journal of Engineering and Applied Science
Soil-steel composite bridges (SSCBs) use the surrounding soil and the culvert’s flexible corrugated steel thin plates to support vertical loads above the culvert. Existing codes use empirical equations based on field measurements and full-scale tests for
Nashwa Nabil Soliman, Sherif Adel Yahia Akl, Ahmed Hosny Abdel Rahman, Sherif Ahmed Mourad   +3 more
doaj   +1 more source

A Female‐Locust‐Inspired Hybrid Soft‐Stiff Robotic Digger: Mimetics and Implications for Digging Efficiency

Advanced Intelligent Systems, EarlyView.
Female desert locusts dig underground to lay their eggs. They displace soil, rather than removing it, to create a tunnel. We analyze burrowing dynamics and 3D kinematics and design a locust‐inspired hybrid soft–stiff robot that reproduces this mechanism. The results show the natural strategy minimizes energy, whereas alternative patterns raise costs up
Shai Sonnenreich, Amir Ayali, Bat‐El Pinchasik   +2 more
wiley   +1 more source

Navigating an STI diagnosis: The role of social support, intergenerational learning, and transformative growth among Black women

American Journal of Community Psychology, EarlyView.
Abstract Black women face a myriad of challenges that heighten their susceptibility to sexually transmitted infections (STIs), resulting in a disproportionate impact of STIs among this population. Yet, there is a lack of research that explores how women navigate these diagnoses with resilience.
Jaleah D. Rutledge, Jasmine Abrams, Ijeoma Opara, Robin Lin Miller   +3 more
wiley   +1 more source

Jamming transition in a two-dimensional open granular pile with rolling resistance

, 2014
We present a molecular dynamics study of the jamming/unjamming transition in two-dimensional granular piles with open boundaries. The grains are modeled by viscoelastic forces, Coulomb friction and resistance to rolling.
Atman, Allbens P. F., Combe, Gaël, Magalhães, Caio F. M., Moreira, José G.   +3 more
core   +4 more sources

Nature quality in organic farming: A conceptual analysis of considerations and criteria in a European context [PDF]

, 2004
Nature quality in relation to farming is a complex field. It involves different traditions and interests, different views of what nature is, and different ways of valuing nature.
Alrøe, Hugo Fjelsted, Frederiksen, Pia, Tybirk, Knud   +2 more
core   +1 more source