Results 231 to 240 of about 2,004,093 (348)
Hierarchical Artificial Muscle with Nonlinear Elasticity for Antagonistic and Cyclic Robotics
We construct hierarchical muscles by plying nylon fibers around a heating wire. The hierarchical muscle shows a J‐shaped passive curve, which shows benefit in antagonistic muscle pair and work accumulation mechanism. We also develop a computational, first‐principle model to understand the physics of both active actuation stroke and passive J‐curve ...
Samuel Tsai +15 more
wiley +1 more source
Undeclared work in agriculture: characteristics, estimation methods, and underlying causes. [PDF]
Giordani G, Giarè F, Severini S.
europepmc +1 more source
„Overcoming the Shadow Economy“
openaire +2 more sources
Designing Scalable Mechano‐Virucidal Nanostructured Acrylic Surfaces for Enhanced Viral Inactivation
Can a surface be designed to physically break viruses? This study explores how nanoscale geometry—specifically the spacing of tiny pillars—can determine whether viruses remain intact or rupture. Using flexible acrylic and a scalable fabrication process, the authors develop nanopillared, transparent surfaces that show strong antiviral activity without ...
Samson W. L. Mah +14 more
wiley +1 more source
The Political Economy of Health Inequality. [PDF]
Lowery G.
europepmc +1 more source
Shadow Economies and Corruption All Over the World: What Do We Really Know?
Friedrich Schneider
openalex +1 more source
Leveraging 3D bioprinting, this study establishes patient‐derived in vitro models of intrahepatic cholangiocarcinoma. These models faithfully recapitulate the histopathology, molecular profiles, and genomic characteristics of the original patient tumors.
Yuce Lu +23 more
wiley +1 more source
Aeolian sand migration induced land degradation and desertification hotspots identification in the semi-arid rain shadow regions of Anantapur, India. [PDF]
Badapalli PK +4 more
europepmc +1 more source
Sustainable KCl‐Assisted PbI2 Recycling for High‐Performance Quantum Dot Solar Cells
An additive‐assisted lead recycling strategy is developed by introducing trace KCl during PbI2 recrystallization from spent lead‐acid batteries. KCl regulates crystallization and impurity removal, yielding high‐purity PbI2 and enabling the formation of colloidally stable PbS and CsPbI3 quantum dots.
Jihong Lan +11 more
wiley +1 more source

