Results 11 to 20 of about 699,952 (242)

Isotopically “heavy” pyrite in marine sediments due to high sedimentation rates and non-steady-state deposition

open access: yesGeology, 2021
Sedimentary pyrite formation links the global biogeochemical cycles of carbon, sulfur, and iron, which, in turn, modulate the redox state of the planet’s surficial environment over geological time scales.
Jiarui Liu, E. al.
semanticscholar   +1 more source

Steady-State Analysis of Light-harvesting Energy Transfer Driven by Incoherent Light: From Dimers to Networks. [PDF]

open access: yesJournal of Physical Chemistry Letters, 2020
The question of how quantum coherence facilitates energy transfer has been intensively debated in the scientific community. Since natural and artificial light-harvesting units operate under the stationary condition, we address this question via a non ...
Pei-Yun Yang, Jianshu Cao
semanticscholar   +1 more source

Interpretation of NO3–N2O5 observation via steady state in high-aerosol air mass: the impact of equilibrium coefficient in ambient conditions

open access: yesAtmospheric Chemistry and Physics, 2022
. Steady-state approximation for interpreting NO3 and N2O5 has large uncertainty under complicated ambient conditions and could even produce incorrect results unconsciously.
Xiaorui Chen, Haichao Wang, K. Lu
semanticscholar   +1 more source

Towards Large-Scale Steady-State Enhanced Nuclear Magnetization with In Situ Detection.

open access: yesMagnetic resonance in chemistry : MRC, 2021
Signal Amplification By Reversible Exchange (SABRE) boosts NMR signals of various nuclei enabling new applications spanning from magnetic resonance imaging to analytical chemistry and fundamental physics.
J. Blanchard   +7 more
semanticscholar   +1 more source

Discrimination of ablation, shielding, and interface layer effects on the steady-state formation of persistent bubbles under liquid flow conditions during laser synthesis of colloids

open access: yesJournal of Flow Chemistry, 2021
Over the past decade, laser ablation in liquids (LAL) was established as an innovative nanoparticle synthesis method obeying the principles of green chemistry.
M. Kalus   +3 more
semanticscholar   +1 more source

Interpretation of NO3–N2O5 observation via steady state in high aerosol air mass: The impact of equilibrium coefficient in ambient conditions

open access: yes, 2021
. Steady state approximation for interpreting NO3 and N2O5 has large uncertainty under complicated ambient conditions and could even produces incorrect results unconsciously.
Xiaorui Chen, Haichao Wang, K. Lu
semanticscholar   +1 more source

Flame Chemistry in the ISO/TS 19700 Steady State Tube Furnace

open access: yes, 2023
The steady state tube furnace (SSTF) (ISO/TS 19700) was used to assess the effects altering the reaction zone of a flame had on smoke toxicity measurements. The gas inlet of the apparatus was modified to allow for a mixture of nitrogen and air to be introduced into the system.
Gabrielle Peck, Ryan Hayes
openaire   +1 more source

Electrochemical Generation of Steady-State Linear Concentration Gradients within Microfluidic Channels Perpendicular to the Flow Field.

open access: yesAnalytical Chemistry, 2020
A new design of microelectrode was introduced to generate electrochemically steady-state linear concentration gradients perpendicular to the flow direction over the entire section of microchannels. The shape and geometry of the electrode were established
Pierre Perrodin, C. Sella, L. Thouin
semanticscholar   +1 more source

Mean First-Passage Time and Steady-State Transfer Rate in Classical Chains [PDF]

open access: yesJournal of Physical Chemistry C, 2018
Understanding excitation and charge transfer in disordered media is a significant challenge in chemistry, biophysics, and material science. We study two experimentally relevant measures for carrier transfer in finite-size chains, a mean first-passage ...
N. Kalantar, D. Segal
semanticscholar   +1 more source

Steady-State Calibration of a Diesel Engine in CFD Using a GPU-Based Chemistry Solver

open access: yesVolume 2: Emissions Control Systems; Instrumentation, Controls, and Hybrids; Numerical Simulation; Engine Design and Mechanical Development, 2017
The prospect of analysis-driven pre-calibration of a modern diesel engine is extremely valuable in order to significantly reduce hardware investments and accelerate engine designs compliant with stricter EPA fuel economy regulations. Advanced modeling tools, such as CFD, are often used with the goal of streamlining significant portions of the ...
Jian Gao   +7 more
openaire   +4 more sources

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