Results 171 to 180 of about 2,844,597 (383)

Form Factor–Free Magneto‐Triboelectric Generator for Standalone Power Line IoT Applications

open access: yesAdvanced Energy Materials, EarlyView.
These limitations are addressed by employing iron, one of the most abundant materials on Earth, and the flexible ferroelectric polymer P(VDF‐TrFE). The composite film of P(VDF‐TrFE) and iron exhibits mechanical deformation under magnetic fields, combined with excellent flexibility, cost‐effective fabrication, and straightforward processing.
Hyun Soo Kim   +18 more
wiley   +1 more source

Dyplomacja lotnicza i kosmiczna – aspekty prawne

open access: yesActa Iuris Stetinensis
Aerospace diplomacy has its own peculiarities due to the complex subject of regulation, which is to ensure security, both in air and space. The plane of air and space diplomacy can be referred not only to the creation of international legal norms or ...
Małgorzata Polkowska
doaj   +1 more source

US employment exposure to domestic and foreign tariff changes under NAFTA

open access: yesApplied Economic Perspectives and Policy, EarlyView.
Abstract Literature examining the effects of changes in trade agreements and import competition on US employment and wages has focused primarily on non‐agricultural industries and changes in US import tariffs. We propose a method for measuring worker exposure to changes in agricultural tariffs using a newly developed county‐level dataset of employment ...
Diane E. Charlton   +3 more
wiley   +1 more source

Gravitation Gauge Group [PDF]

open access: yesNuovo-Cimento, 1997, v112B, No6, 825-837, 1997
Suggested theory involves a drastic revision of a role of local internal symmetries in physical concept of curved geometry. Under the reflection of fields and their dynamics from Minkowski to Riemannian space a standard gauge principle of local internal symmetries is generalized.
arxiv  

Recent Advances and Strategies for Co‐Based Catalysts in Ammonia Decomposition for Hydrogen Production

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
Ammonia decomposition is a critical process for the production of COx‐free hydrogen, which is essential for the sustainable energy solutions. This review discusses Co‐based catalysts for ammonia decomposition, categorizing them into supported and unsupported catalysts.
Sujin Kim   +5 more
wiley   +1 more source

Supercapacitors: An Emerging Energy Storage System

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
This review explores the principles, advancements, and material innovations in supercapacitor technology, covering pseudocapacitors, double‐layer capacitors, electrolytes, and nanostructured materials like carbon nanotubes, MXenes, and graphene. It examines hybrid systems bridging capacitors and batteries, promising applications in wearable devices ...
Muhammad Faisal Iqbal   +7 more
wiley   +1 more source

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