Results 71 to 80 of about 357,256 (297)

Methane observations from the Greenhouse Gases Observing SATellite: Comparison to ground‐based TCCON data and model calculations [PDF]

open access: yes, 2011
We report new short-wave infrared (SWIR) column retrievals of atmospheric methane (X_(CH4)) from the Japanese Greenhouse Gases Observing SATellite (GOSAT) and compare observed spatial and temporal variations with correlative ground-based measurements ...
Annemarie Fraser   +33 more
core   +3 more sources

Beyond Presumptions: Toward Mechanistic Clarity in Metal‐Free Carbon Catalysts for Electrochemical H2O2 Production via Data Science

open access: yesAdvanced Materials, EarlyView.
Metal‐free carbon catalysts enable the sustainable synthesis of hydrogen peroxide via two‐electron oxygen reduction; however, active site complexity continues to hinder reliable interpretation. This review critiques correlation‐based approaches and highlights the importance of orthogonal experimental designs, standardized catalyst passports ...
Dayu Zhu   +3 more
wiley   +1 more source

Research progress on leakage and diffusion of CH4 and H2/CH4 in buried and submarine pipeline transportation processes

open access: yesEmergency Management Science and Technology
Most countries globally are actively advancing efforts towards achieving carbon peak and carbon neutrality goals. CH4 and H2 serve as vital clean energy carriers in support of these objectives. Pipeline transportation is an essential method for the large-
Jingran Liu   +6 more
doaj   +1 more source

Multiyear measurements of ebullitive methane flux from three subarctic lakes [PDF]

open access: yes, 2013
Ebullition (bubbling) from small lakes and ponds at high latitudes is an important yet unconstrained source of atmospheric methane (CH4). Small water bodies are most abundant in permanently frozen peatlands, and it is speculated that their emissions will
Bastviken, David   +2 more
core   +1 more source

Tuning Amorphous‐Crystalline Catalytic Interfaces by Mechanochemistry: Cu‐Based Metallic Glasses Coupled with Ceria for CO Oxidation

open access: yesAdvanced Materials, EarlyView.
Ball‐milling Cu‐based metallic glasses with ceria creates a unique nanostructure where metallic glass particles are wrapped by CeO2 nanoparticles. The intimate integration triggers copper state reorganization during reaction and aging, boosting CO oxidation and COPrOx activity.
Maahin Mirzay‐Shahim   +17 more
wiley   +1 more source

Methane overtone absorption by intracavity laser spectroscopy [PDF]

open access: yes, 1990
Interpretation of planetary methane (CH4) visible-near IR spectra, used to develop models of planetary atmospheres, has been hampered by a lack of suitable laboratory spectroscopic data.
Obrien, James J.
core   +1 more source

3D‐Printable, Honeycomb‐Inspired Tissue‐Like Bioelectrodes for Patient‐Specific Neural Interface

open access: yesAdvanced Materials, EarlyView.
3D printed MRI‐compatible tissue‐like neural electrodes tailored to individual gyral patterns. This honeycomb‐inspired printable gel electrode (HiPGE) employs a bioinspired architecture with soft hydrogels, engineered to match the softness of brain tissue.
Marzia Momin   +12 more
wiley   +1 more source

Introducing the Manufacturing Digital Passport (MDP): A New Concept for Realising Digital Thread Data Sharing in Aerospace and Complex Manufacturing

open access: yesSystems
In the current data-driven era, effective data sharing is set to unlock billions in value for aerospace and complex manufacturing and their supply chains by enhancing product quality, boosting manufacturing and operational efficiency, and generating new ...
Mohammed M. Mabkhot   +2 more
doaj   +1 more source

Exploring Sources and Biogeochemical Dynamics of Dissolved Methane in the Central Bohai Sea in Summer

open access: yesFrontiers in Marine Science, 2020
To clarify the sources and biogeochemical dynamics of dissolved methane (CH4) in shallow-water coastal oceans, we investigated the concentrations, sea-to-air fluxes, and net cycling rate of CH4 in the central Bohai Sea in summer 2018.
Yong Zhang, Bing Chen, Wei-dong Zhai
doaj   +1 more source

The impact of a northern peatland on the earth’s radiative budget: sustained methane emission versus sustained carbon sequestration [PDF]

open access: yes, 2006
Northern peatlands sequester carbon and emit methane, and thus have both cooling and warming impacts on the climate system through their influence on atmospheric burdens of CO2 and CH4.
Frolking, Steve   +2 more
core   +1 more source

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