Results 31 to 40 of about 45,409 (167)

Methane emissions from the shallow water zone of the Kuibyshev reservoir: a floating chamber study

Водное хозяйство России: проблемы, технологии, управление
Freshwater ecosystems, including reservoirs, contribute significantly to global emissions of the greenhouse gas methane (CH4). The shallow zones of reservoirs are considered emission hotspots; however, their contribution to the carbon budget of large ...
Oleg V. Nikitin, Nadezhda Y. Stepanova, Lyudmila V. Novikova, Aleksander S. Gordeev, Ruslan S. Kuzmin, Venera Z. Latypova   +5 more
doaj   +1 more source

Study on the adsorption of CH4, CO2 and various CH4/CO2 mixture gases on shale

Alexandria Engineering Journal, 2020
The isothermal sorption experiments of CH4, CO2 and CH4/CO2 mixture gases on shale were performed. The sorption affinities of CH4, CO2 and CH4/CO2 mixture gases were compared using Henry’s coefficient (KH).
Xidong Du, Yugang Cheng, Zhenjian Liu, Zhenkun Hou, Tengfei Wu, Ruide Lei, Couxian Shu   +6 more
doaj   +1 more source

Early anthropogenic CH4 emissions and the variation of CH4 and (CH4)-C-13 over the last millennium

Global Biogeochemical Cycles, 2008
This study presents a new hypothesis to explain the observed variation of ...
Houweling, S, van der Werf, G.R., Goldeijk, K.K., Rockmann, T., Aben, I.   +4 more
openaire   +1 more source

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

Emergency 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, Dongxu Huang, Ling Cui, Xin Zhang, Zhenhua Wang, Yunting Tsai, Yong Pan   +6 more
doaj   +1 more source

Methane production potential and emission at different water levels in the restored reed wetland of Hangzhou Bay.

PLoS ONE, 2017
Changes in the hydrological conditions of coastal wetlands may potentially affect the role of wetlands in the methane (CH4) cycle. In this study, the CH4 production potential and emissions from restored coastal reed wetlands at different water levels ...
Xuexin Shao, Xuancai Sheng, Ming Wu, Hao Wu, Xiao Ning   +4 more
doaj   +1 more source

Adsorption Equilibrium and Thermodynamic Analysis of CO2 and CH4 on Qinshui Basin Anthracite

Geofluids, 2019
Adsorption isotherms of CH4 and CO2 on Qinshui Basin anthracite were obtained at the temperatures of 283 K, 303 K, and 323 K using the gravimetric method.
Xidong Du, Tengfei Wu, Fulong Sun, Zhenkun Hou, Zhenjian Liu, Liang Huo, Yu Hao, Yuan Zhao   +7 more
doaj   +1 more source

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

Systems
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, Roy S. Kalawsky, Amer Liaqat   +2 more
doaj   +1 more source

Assessment of the Impact of the Revised National E-Waste Framework on the Informal E-Waste Sector of Nigeria

Recycling
E-Waste management in Nigeria remains predominantly informal, with unlicensed collectors focusing on extracting valuable materials, primarily for export.
Olusegun A. Odeyingbo, Otmar K. Deubzer, Oluwatobi A. Ogunmokun   +2 more
doaj   +1 more source

Quantitative experimental investigation of CO2 enhancement of the desorption rate of adsorbed CH4 in coal

Energy Reports, 2020
The injection of CO2 into a coal seam can effectively improve the recovery efficiency of coalbed methane. Existing CO2-enhanced coalbed methane(ECBM) is mainly focused on improving the physical recovery efficiency of free CH4. In macro experiments, it is
Gang Bai, Yanhang Jiang, Xueming Li, Xihua Zhou, Ying Chen, Liqiang Chang, Jian Sun   +6 more
doaj   +1 more source

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

Frontiers 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