Results 61 to 70 of about 142,213 (242)

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

The French-German Climate Monitoring Initiative on global observations of atmospheric CH4 [PDF]

, 2010
Knowledge of concentrations and fluxes of the most important long-lived greenhouse carbon dioxide (CO2) and methane (CH4) is a key element of climate change research.
Gibert, Fabien, Kiemle, Christoph, Flamant, Pierre, Fabien, Gibert, Fix, Andreas, Ciais, Philippe, Quatrevalet, Mathieu, Amediek, Axel, Ehret, Gerhard, Wirth, Martin   +9 more
core  

Defect‐Engineered ZnO Nanowire Arrays for Flexible Room‐Temperature Hydrogen Sensors

Advanced Materials Technologies, EarlyView.
Fabrication process of patterned ZnO nucleation sites on a flexible polyimide (PI) substrate. Top/tilted‐view SEM images of ordered ZnO nanoflower arrays confined within patterned circular regions. AFM topography map with height data revealing a disk‐array structure, where the patterned regions (marked by a red dot circle) are elevated by ∼2 µm ...
Jun‐Ting Wang, Imran Khan, Jhen‐De You, Fan‐Hua Kong, Chang‐Mou Wu, Po‐Kai Chiu, Ray‐Hua Horng, Jinn P. Chu   +7 more
wiley   +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

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

Spatially Configurable Conformal Sensor Integration on an Ultra‐Fine Metallic Needle for Minimally Invasive Deep‐Tissue Oxygen Monitoring

Advanced Materials Technologies, EarlyView.
A multi‐point oxygen‐sensing ultra‐fine needle (MO‐UFN) is developed by conformally integrating a lithographically patterned flexible electrochemical sensor array onto a clinical acupuncture needle. The platform preserves an approximately 0.3 mm diameter while enabling spatially resolved oxygen profiling along the insertion pathway.
Yeju Seo, Jaeho Park, Yongrok Jeong, Ji‐Hwan Ha, Junseong Ahn, Jimin Gu, Su A Park, Ilwoo Jun, Kichul Lee, Inkyu Park   +9 more
wiley   +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

Inventarisasi Emisi Gas Rumah Kaca (Ch4) Dari Kegiatan Pertanian Dan Peternakan Di Kabupaten Bandung

, 2010
Green house gas (like CO2, CH4, N2O, HFCs, PFCs, and SF6) potentially generate from activityin Bandung regency. Green house gas considered cause of global warming.
Eka Wardhani, Bahrudin Machbub
core  

Recent Advances in Laser‐Induced Graphene‐Based Gas Sensors: From Sensing Mechanisms to Biomedical Applications

Advanced Science, EarlyView.
Laser‐induced graphene (LIG) provides a scalable, laser‐direct‐written route to porous graphene architecture with tunable chemistry and defect density. Through heterojunction engineering, catalytic functionalization, and intrinsic self‐heating, LIG achieves highly sensitive and selective detection of NOX, NH3, H2, and humidity, supporting next ...
Md Abu Sayeed Biswas, Ankan Dutta, Shuvendu Das, Abu Musa Abdullah, Wanqing Zhang, Fatema Tuz Zohra, Huanyu Cheng   +6 more
wiley   +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