Results 121 to 130 of about 2,166,456 (328)

Child Labor, Idiosyncratic Shocks, and Social Policy [PDF]

open access: yes
In this paper, we measure the welfare effects of banning child labor in an economy with strong idiosyncratic shocks to employment. We then design two different policies: an unemployment insurance program and a universal basic income system.
Alice Fabre, Stéphane Pallage
core  

Is Young's Modulus a Critical Coating Property Determining Fouling‐Release Performance of Marine Coatings?

open access: yesAdvanced Engineering Materials, EarlyView.
The release of foulers from protective marine coatings is determined by several interrelated material properties, including the strength of Young's modulus, the flexibility of chain segments, the surface free energy, and the magnitude of hydrodynamic stress.
Johann C. Schaal   +2 more
wiley   +1 more source

Design of an universal source for semi-automatic ac welding and induction heating

open access: gold, 2021
Vladimir Burlaka   +4 more
openalex   +2 more sources

Adaptable Tile‐Based Pneumatic Origami through Structurally Coupled Localized Actuation

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents tile‐based pneumatic origami structures with rigid tiles and flexible fabric creases, achieving adaptable properties including morphing shape, selective multistability, and tunable stiffness. Independently pressurized folding bladders at each crease enable structurally coupled localized actuation of origami structures.
Tiantian Li, Jonathan Luntz, Diann Brei
wiley   +1 more source

Unidirectional Tape‐Based Composites from Hemp and Pineapple Leaf Fiber: Mechanical Performance in Conventional and Bio‐Based Matrices

open access: yesAdvanced Engineering Materials, EarlyView.
The study investigates novel semi‐finished products made of unidirectionally arranged hemp or pineapple leaf fiber‐reinforced composites produced from different matrices. The materials are analyzed in terms of their mechanical and interfacial properties and void content.
Nina Graupner   +22 more
wiley   +1 more source

Universal stowage module for future space exploration, design drawings [PDF]

open access: yes
For abstract, see N74-20534. For complete abstract, see
Garber, P., Hussey, M. W.
core   +1 more source

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