Results 61 to 70 of about 477,025 (280)
Regenerative fuel cell study for satellites in GEO orbit [PDF]
The results of a 12 month study to identify high performance regenerative hydrogen-oxygen fuel cell concepts for geosynchronous satellite application are summarized.
Gonzalez-Sanabria, Olga +2 more
core +4 more sources
Implementation aspects and offline digital signal processing of a smart pebble for river bed sediment transport monitoring [PDF]
, 2006 Conceptualization aspects of a smart sediment particle (smart pebble) for monitoring of sediment transport in riverbeds have been documented previously [1].
Kularatna, Nihal +2 more
core +2 more sources
Dynamics of water molecules in an alkaline environment
The Journal of Chemical Physics, 2002 We report on a two-color mid-infrared pump–probe spectroscopic study of the dynamics of the OH stretch vibrations of HDO molecules dissolved in a concentrated (10 M) solution of NaOD in D2O. We observe that spectral holes can be created in the broad OH stretch absorption band that change neither position nor width on a picosecond time scale.
Nienhuys, H.-K. +3 more
openaire +1 more source
Synchrotron Radiation for Quantum Technology
Advanced Functional Materials, EarlyView.Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader +10 more
wiley +1 more source
Frontiers in Sustainable Food SystemsIntroductionSoil salinity in the Yellow River Delta exhibits seasonal dynamics, with desalination in October (low-salt period) and salinity return in April (high-salt period).MethodsThis study quantified the spatiotemporal variations in soil salinity ...
Yue Ma +4 more
doaj +1 more source
Bacterial Diversity in a Nonsaline Alkaline Environment: Heterotrophic Aerobic Populations [PDF]
Applied and Environmental Microbiology, 2004 ABSTRACT Heterotrophic populations were isolated and characterized from an alkaline groundwater environment generated by active serpentinization, which results in a Ca(OH) 2 -enriched, extremely diluted groundwater with pH 11.4.
Igor, Tiago +2 more
openaire +2 more sources
Atomic Size Misfit for Electrocatalytic Small Molecule Activation
Advanced Functional Materials, EarlyView.This review explores the application and mechanisms of atomic size misfit in catalysis for small molecule activation, focusing on how structural defects and electronic properties can effectively lower the energy barriers of chemical bonds in molecules like H2O, CO2, and N2.
Ping Hong +3 more
wiley +1 more source
Chemical and photochemical properties of chloroharmine derivatives in aqueous solutions [PDF]
, 2016 Thermal and photochemical stability (ΦR), room temperature UV-vis absorption and fluorescence spectra, fluorescence quantum yields (ΦF) and lifetimes (τF), quantum yields of hydrogen peroxide (ΦH2O2) and singlet oxygen (ΦΔ) production, and triplet ...
Cabrerizo, Franco Martín +7 more
core +1 more source
Advanced Functional Materials, EarlyView.Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida +16 more
wiley +1 more source
Sterol-Response Pathways Mediate Alkaline Survival in Diverse Fungi
mBio, 2020 The ability for cells to maintain homeostasis in the presence of extracellular stress is essential for their survival. Stress adaptations are especially important for microbial pathogens to respond to rapidly changing conditions, such as those ...
Hannah E. Brown +4 more
doaj +1 more source