Results 121 to 130 of about 587,627 (277)

Profiles of alpha 13 C and alpha D in methane from the lower stratosphere [PDF]

Methane is an important greenhouse gas of biogenic and anthropogenic origin for which global budgets are being constructed from a variety of data.
Henry, Robert, Tanaka, Nori, Wahlen, Martin, Weyer, Harley   +3 more
core   +1 more source

Physical Simulation and Law of Interlayer Interference in Multi-Layer Combined Production of Gas Reservoirs with Pressure Difference

Energies
To address interlayer interference during multi-layer commingled production in gas reservoirs with pressure differences, this study investigates the low-permeability gas reservoir in the central Linxing area of the Ordos Basin.
Yu Su, Bing Zhang, Honggang Mi, Chao Wei, Bo Wang, Le Sun, Tianyu Fu, Chen Wang   +7 more
doaj   +1 more source

Basal Plane Activation of SnS2 Thin‐Film by Fluorine Doping for Selective Solar‐Driven CO2 Reduction With Enhanced Quantum Efficiency

Advanced Science, EarlyView.
The synergistic effect of fluorine doping and sulfur vacancies boosts the activity of the active sites without active‐site modulation, leading to enhanced CO2 photoreduction efficiency and a selectivity switch from CH4 to CO on tin disulfide continuous thin films. ABSTRACT Photocatalytic conversion of CO2 into value‐added fuels offers a viable approach
Tadios Tesfaye Mamo, Mohammad Qorbani, Adane Gebresilassie Hailemariam, Putikam Raghunath, Che‐Men Chu, Wen‐Hsin Yuan, Amr Sabbah, Yen‐Yu Wang, Shuo‐Yun Chang, Ming‐Chang Lin, Wei‐Yen Woon, Yu‐Jung Lu, Heng‐Liang Wu, Ken‐Tsung Wong, Kuei‐Hsien Chen, Li‐Chyong Chen   +15 more
wiley   +1 more source

Methane concentration and isotopic composition (d13C-CH4) in the Nerja Cave system (South Spain) [PDF]

, 2016
Air in underground caves often has methane (CH4) concentrations below the atmospheric level, due to methanotrophic or other unkown CH4 consuming processes. Caves are thus considered a potential sink for atmospheric methane.
Benavente Herrera, José, Carrasco-Cantos, Francisco, Etiope, Giuseppe, Liñán-Baena, Cristina, Ojeda Rodríguez, Lucía, Vadillo-Perez, Iñaki   +5 more
core  

Efficient and Robust Heterostructure CeZrOx/NiO‐Ni Inverse Catalyst for Sustainable Photothermal CO2 Methanation

Advanced Science, EarlyView.
A heterostructured CeZrOx/NiO‐Ni inverse catalyst is designed for highly efficient photothermal CO2 methanation under low‐intensity light without auxiliary heating. It achieves 464 mmol·gcat−1·h−1 methane space‐time yield under natural concentrated sunlight, maintains stability over light‐dark cycles and extended air storage, and is scalable to 100 g ...
Chuqiao Song, Zhaohua Wang, Zhouhong Ren, Cheng Yu, Haibo Li, Xin Tang, Houhong Song, Yao Xu, Liangwei Liu, Lili Han, Liwei Chen, Zhifu Qi, Xi Liu, Siyu Yao, Xiao‐nian Li, Xiang Gao, Lili Lin   +16 more
wiley   +1 more source

Theoretical Analysis of Nitric Oxide Production in a Methane/Air Turbulent Diffusion Flame [PDF]

, 1980
The coherent flame model is applied to the methane-air turbulent diffusion flame with the objective of describing the production of nitric oxide. The example of a circular jet of methane discharging into a stationary air atmosphere is used to illustrate ...
Marble, Frank E.
core  

Review: Insight on Porous Carbon Positive Electrode for Sodium‐Ion Capacitors: Interplay Between Synthesis, Properties, and Performance

Advanced Science, EarlyView.
Sodium ion capacitor (SIC) is currently constrained by the low discharge capacity of commercial activated carbon as positive electrode material. This review provides a holistic summary of research efforts on alternative porous carbon materials for SIC. Image created by the authors with www.biorender.com.
Ademola Adeniji, Adrian Beda, Camélia Matei Ghimbeu   +2 more
wiley   +1 more source

Kinetics of dissociative chemisorption of methane and ethane on Pt(110)-(1X2) [PDF]

, 1990
The initial probability of dissociative chemisorption Pr of methane and ethane on the highly corrugated, reconstructed Pt(110)‐(1×2) surface has been measured in a microreactor by counting the number of carbon atoms on the surface following the reaction ...
Sun, Y.-K., Weinberg, W. H.
core  

The disaster law and control measures of high-stress tunnels in fault areas: a case study

Scientific Reports
In recent years, the frequent occurrence of dynamic disasters in tunnels with high stress in fault areas has greatly threatened engineering safety. The typical case – a tunnel influenced by fault slip on is taken as a research object.
Wenjie Li, Mingwei Yao, Zhengkai Liao, Jinbiao Wu, Nenghui Ma, Jingyi Su, Chenchuan Mei, Wenzhe Wang   +7 more
doaj   +1 more source

Optimization and application of sand bailing technology for coalbed methane horizontal wells

Meitian dizhi yu kantan
Objective and Methods Coalbed methane (CBM) horizontal wells face challenges such as sand accumulation in completion strings, pipe wall scaling, and pump sticking, leading to declined CBM production or shutdown of these wells.
Fei ZHANG, Yibing WANG, Lu CHENG, Wenbo MEI, Qi YANG, Wenjie SHEN, Chao CAO, Peng LAI, Zhengkai LIAO, Bao’an XIAN, Yansen BI   +10 more
doaj   +1 more source