Results 41 to 50 of about 459,936 (355)
Texas Water Journal, 2020 This study examines spatial and temporal trends in Texas dams, dam failures, and dam removals. Dams were examined from a state-wide perspective and within 10 major river basins that collectively account for over 80% of all dams in the state. The state-scale and basin-scale analysis revealed similar patterns of dam occurrence, however there was greater ...
Erin D. Dascher, Kimberly Meitzen
openaire +2 more sources
Advanced Healthcare Materials, EarlyView.Neural cell–derived small extracellular vesicles (sEVs) are emerging as pivotal mediators in neurodegenerative diseases, exerting both pathogenic and therapeutic functions. This review synthesizes current evidence on how sEVs from distinct neural cell types regulate neurodegeneration, neuroprotection, biomarker discovery, and targeted drug delivery ...
Muhammad Waqas Salim +4 more
wiley +1 more source
Advanced Materials, EarlyView.This study demonstrates a self‐assembly process to generate free‐standing piezoelectric nanomembranes, forming ultracompact microtubular acoustic wave sensors and actuators. The miniaturized 3D piezoelectric platform reported in this work can be applied in telecommunication, energy harvesting, and acoustofluidics. Moreover, the 3D self‐assembly can add
Raphaël C. L‐M. Doineau +9 more
wiley +1 more source
Study of the 14C-contamination potential of C-impurities in CuO and Fe [PDF]
, 1997 The carbon concentration in CuO and iron was determined by isolating C. The values were in agreement with results reported in other studies. Contaminating carbon from CuO and Fe was transformed to AMS targets and measured for C-14.
Dams, Richard +3 more
core +2 more sources
Microscopic Analysis of Cementitious Sand and Gravel Damming Materials [PDF]
, 2023 Ran Wang +6 more
openalex +1 more source
Transparent Perovskite Light‐Emitting Diodes with Conductive Oxide Top Electrodes
Advanced Materials, EarlyView.Transparent perovskite light‐emitting diodes (TrPeLEDs) enable simultaneous display and transparency, expanding application possibilities. Using a metal oxide buffer layer and pulsed laser deposition, TrPeLEDs with diverse compositions and architectures are demonstrated.
Michele Forzatti +11 more
wiley +1 more source
A Risky Climate for Southern African Hydro [PDF]
, 2012 This in-depth study of the hydrological risks to hydropower dams on the Zambezi River gives an early warning about what Southern Africa could be facing as it contemplates plans for more large hydropower dams in a time of climate change.Currently, 13,000 ...
Richard Beilfuss
core
Composition Restoration Enables Recycling of Mixed‐Cation, Mixed‐Halide Perovskites for Solar Cells
Advanced Materials, EarlyView.Compositional drift during processing prevents the direct recycling of mixed‐cation, mixed‐halide perovskites. This work introduces a framework to quantitatively audit and restore recovered materials, enabling closed‐loop recycling with efficiencies comparable to virgin perovskites.
Zhenni Wu +12 more
wiley +1 more source
Quelques considérations sur l'Art Rupestre Schématique d'Andalousie
Zephyrus, 2009 Parmi les grandes étapes artistiques parcourues par l'humanité au cours de la préhistoire, l'art rupestre schématique de la péninsule ibérique occupe une place de premier plan, non seulement par sa grande extensión géographique, mais aussi par les ...
Lya DAMS, Marcel DAMS
doaj
Hydropower: Using Water Movement to Generate Electricity [PDF]
, 2006 Key facts: - Hydroelectric power is produced by large turbines that convert the energy of falling or running water into electricity. - Hydropower provides 20 percent of the world's electricity, and 7-9 percent of US electricity.
core