Results 51 to 60 of about 723,633 (329)

Effect of primary treatment and organic loading on methane emissions from horizontal subsurface flow constructed wetlands treating urban wastewater [PDF]

open access: yes, 2015
Methane is emitted in horizontal subsurface flow constructed wetlands (HSSF CWs) during wastewater treatment. The objective of this work was to determine the influence of primary treatment and organic loading rate on methane emissions from constructed ...
Corbella Vidal, Clara   +1 more
core   +2 more sources

Photoswitching Conduction in Framework Materials

open access: yesAdvanced Functional Materials, EarlyView.
This mini‐review summarizes recent advances in state‐of‐the‐art proton and electron conduction in framework materials that can be remotely and reversibly switched on and off by light. It discusses the various photoswitching conduction mechanisms and the strategies employed to enhance photoswitched conductivity.
Helmy Pacheco Hernandez   +4 more
wiley   +1 more source

Analysis of factors affecting the productivity of coalbed methane wells in Houxia Basin, Xinjiang

open access: yesMeikuang Anquan
The coalbed methane production of single-well varies widely and low in Houxia Basin, Xinjiang, indicating complexity control factors on the coalbed methane productivity. The statistical analysis, linear regression method and grey correlation mathematical
Peng LI   +5 more
doaj   +1 more source

Methane Planets and their Mass-Radius Relation

open access: yes, 2015
Knowledge of both the mass and radius of an exoplanet allows us to estimate its mean density, and therefore its composition. Exoplanets seem to fill a very large parameter space in terms of mass and composition, and unlike the solar-system's planets ...
Helled, Ravit   +2 more
core   +1 more source

Oxidative coupling of methane in a mixed-conducting perovskite membrane reactor [PDF]

open access: yes, 1995
Ionic-electronic mixed-conducting perovskite-type oxide La0.6Sr0.4Co0.8Fe0.2O3 was applied as a dense membrane for oxygen supply in a reactor for methane coupling.
Bouwmeester, H.J.M.   +2 more
core   +2 more sources

Functional Materials for Environmental Energy Harvesting in Smart Agriculture via Triboelectric Nanogenerators

open access: yesAdvanced Functional Materials, EarlyView.
This review explores functional and responsive materials for triboelectric nanogenerators (TENGs) in sustainable smart agriculture. It examines how particulate contamination and dirt affect charge transfer and efficiency. Environmental challenges and strategies to enhance durability and responsiveness are outlined, including active functional layers ...
Rafael R. A. Silva   +9 more
wiley   +1 more source

Design and Application of Fluid Pump Drainage Gas Recovery Technology in Dongsheng Gas Field

open access: yesShiyou jixie
To effectively address the bottleneck problems of high injection pressure and high energy consumption of hydraulic jet pump technology, it is urgent to improve and optimize the drainage gas recovery technology of high water-production gas wells.
Zhou Ruili   +6 more
doaj   +1 more source

Defects Dynamic in Photo‐Excited CeO2 and their Influence on CO2 Photoreduction

open access: yesAdvanced Functional Materials, EarlyView.
X‐ray photoelectron spectroscopy study under light excitation is presented to track the defect dynamic (Ce4+ to Ce3+) in CeO2. Surface enhanced Raman spectroscopy confirmed the key role of Ce3+ states in controlling charge and energy transfer across the CeO2‐dye molecule interface.
Rambabu Yalavarthi   +3 more
wiley   +1 more source

Impact of Dynamic Elastic Modulus on Coal Permeability: Modeling and Analysis

open access: yesGeofluids, 2022
Coalbed methane is a kind of high-quality clean energy. The underground gas drainage can achieve the efficient utilization of coalbed methane. Permeability is the key factor affecting gas drainage.
Jia Kong   +4 more
doaj   +1 more source

Evening Methane Emission Pulses from a Boreal Wetland Correspond to Convective Mixing in Hollows [PDF]

open access: yes, 2013
Spatial and temporal heterogeneity of methane flux from boreal wetlands makes prediction and up-scaling challenging, both within and among wetland systems.
McNamara, Patrick J
core   +1 more source

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