Results 81 to 90 of about 24,545 (231)
Removal of terrestrial DOC in aquatic ecosystems of a temperate river network [PDF]
, 2015 Surface waters play a potentially important role in the global carbon balance. Dissolved organic carbon (DOC) fluxes are a major transfer of terrestrial carbon to river systems, and the fate of DOC in aquatic systems is poorly constrained.
Aiken, G. R. +5 more
core +3 more sources
Remote Sensing in Ecology and Conservation, EarlyView.The single‐scan approach to terrestrial laser scanning (TLS) and the self‐terrain‐normalized form of drone‐based digital aerial photogrammetry (DAP) offer practical options for rapid assessment of the vegetation structure in tropical landscapes.
Magnus Onyiriagwu +7 more
wiley +1 more source
Filling a Gap in Materials Mechanics: Nanoindentation at High Constant Strain Rates up to 105 s−1
Small, EarlyView.A piezoelectric nanoindentation platform enables constant strain‐rate testing up to 105 s−1, extending experimental capabilities to extreme deformation regimes. Distinct hardness upturns are revealed across crystalline and amorphous materials, verified as intrinsic responses through quasi‐static reloading.
Lalith Kumar Bhaskar +14 more
wiley +1 more source
Investigation of phase-separated electronic states in 1.5µm GaInNAs/GaAs heterostructures by optical spectroscopy [PDF]
, 2005 We report on the comparative electronic state characteristics of particular GaInNAs/GaAs quantum well structures that emit near 1.3 and 1.5 µm wavelength at room temperature.
Calvez, S +6 more
core +1 more source
Electrical Breakdown Analysis of Emerging Oil–Paper Insulation Systems
High Voltage, EarlyView.ABSTRACT This investigation addresses the effect of particulate additives on the electrical breakdown strength of the oil impregnated insulation paper system. The morphological complexity is addressed by converting data from scanning electron microscope images to a data set suitable for numerical simulation analysis. Then, by using the conventional oil‐
Yue Xu +9 more
wiley +1 more source
Role of extracellular carbonic anhydrase in the polar diatom Fragilariopsis cylindrus
New Phytologist, EarlyView.Summary Diatoms are major primary producers in productive polar oceans, where cold temperatures and high CO2 solubility raise questions as to whether they rely on the CO2‐concentrating mechanism (CCM) to saturate photosynthesis. Knowledge of CCM function will help better predict the sensitivity of diatom primary production to warming and acidifying ...
Meng Li, Jodi N. Young
wiley +1 more source
A Constant Acoustic Impedance Mount for Sheet-Type Specimens in the Tensile Split-Hopkinson Bar
EPJ Web of Conferences, 2018 This paper addresses a problem well-known amongst practitioners of the Split-Hopkinson Tension Bar method: attaching a flat test specimen made from sheet material to the cylindrical input-and output bars.
Ganzenmüller Georg. C. +2 more
doaj +1 more source
Effects of porosity on dynamic indentation resistance of silica nanofoam. [PDF]
, 2017 The dynamic indentation behaviors of monolithic silica nanofoams of various porosities are investigated. When the pore size is on the nm scale, as the porosity increases, despite the decrease in mass density, the resistance offered by silica nanofoam to ...
Qiao, Yu, Zhao, Cang, Zhong, Ying
core +2 more sources
Photosynthetic primary production in the Mesoproterozoic
New Phytologist, EarlyView.Summary The Mesoproterozoic atmosphere had more CO2 and less O2 than at present. While the upper ocean was oxygenated, the deeper ocean was euxinic or ferruginous. Primary production was performed by Chlorobia, Cyanobacteria, Proteobacteria, and Archaeplastida.
Patricia Sánchez‐Baracaldo +1 more
wiley +1 more source
Results in Physics, 2019 A new experimental methodology and test system is proposed to assess the wall pressure due to the high-voltage underwater Spark-generated bubble. In the methodology, a Hopkinson bar is used as the sensing element and the pressure signal is obtained based
Xiongliang Yao +3 more
doaj +1 more source