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Xinhong Liu, Yan Gao, Zhenhua Zhang, Jia Luo and Shaohua Yan
Water bodies are major areas for methane release. Eutrophic water bodies may promote methane flux. The sediment-water interface is the major location for methane release, and studies on sediment-water interactions are necessary to regulate methane releas...
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Xinhong Liu, Yan Gao, Zhenhua Zhang, Jia Luo, Shaohua Yan
Pág. 1 - 12
Water bodies are major areas for methane release. Eutrophic water bodies may promote methane flux. The sediment-water interface is the major location for methane release, and studies on sediment-water interactions are necessary to regulate methane releas...
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Bingjie Ma, Yang Wang, Ping Jiang and Siyue Li
Eutrophication is prevalent in urban lakes; however, a knowledge gap exists regarding eutrophication influences on carbon dynamics in these ecosystems. In the present study, we investigated the carbon dioxide (CO2) and methane (CH4) concentration and dif...
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Sean M. McGinn and Thomas K. Flesch
Concentrated animal feeding operations (CAFO) such as open-air beef cattle feedlots are known ?hot spots? of emissions of numerous gases including the major greenhouse gases methane, nitrous oxide, and carbon dioxide. Some work has documented CAFOs to de...
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Nongpat Chaichana, Sonoko Dorothea Bellingrath-Kimura, Shujiro Komiya, Yoshiharu Fujii, Kosuke Noborio, Ottfried Dietrich and Tiwa Pakoktom
Greenhouse gas flux monitoring in ecosystems is mostly conducted by closed chamber and eddy covariance techniques. To determine the relevance of the two methods in rice paddy fields at different growing stages, closed chamber (CC) and eddy covariance (EC...
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Dong-Wan Cho, Hocheol Song, Kwangsuk Yoon, Sewoon Kim, Jeongmin Han and Jinwoo Cho
Expolitation of coalbed methane (CBM) involves production of a massive amount saline water that needs to be properly managed for environmental protection. In this study, direct contact membrane distillation (DCMD) was utilized for treatment of CBM-produc...
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Dong-Wan Cho, Hocheol Song, Kwangsuk Yoon, Sewoon Kim, Jeongmin Han, Jinwoo Cho
Pág. 1 - 11
Expolitation of coalbed methane (CBM) involves production of a massive amount saline water that needs to be properly managed for environmental protection. In this study, direct contact membrane distillation (DCMD) was utilized for treatment of CBM-produc...
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Joseph P. Smith and Richard B. Coffin
In June 2007 sediment cores were collected in Alaminos Canyon, Gulf of Mexico across a series of seismic data profiles indicating rapid transitions between the presence of methane hydrates and vertical gas flux. Vertical profiles of dissolved sulfate, ch...
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Denis Chernykh, Natalia Shakhova, Vladimir Yusupov, Elena Gershelis, Boris Morgunov and Igor Semiletov
This paper presents the results of an acoustic survey carried out from the fast ice in the shallow waters of the East Siberian Arctic Shelf (ESAS) using a single beam echosounder. The aim of this paper is to demonstrate an improved approach to study seaf...
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Evgeny Strokach, Victor Zhukov, Igor Borovik, Andrej Sternin and Oscar J. Haidn
In this study, a single injector methane-oxygen rocket combustor is numerically studied. The simulations included in this study are based on the hardware and experimental data from the Technical University of Munich. The focus is on the recently develope...
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Denis Chernykh, Vladimir Yusupov, Aleksandr Salomatin, Denis Kosmach, Natalia Shakhova, Elena Gershelis, Anton Konstantinov, Andrey Grinko, Evgeny Chuvilin, Oleg Dudarev, Andrey Koshurnikov and Igor Semiletov
Seeps found offshore in the East Siberian Arctic Shelf may mark zones of degrading subsea permafrost and related destabilization of gas hydrates. Sonar surveys provide an effective tool for mapping seabed methane fluxes and monitoring subsea Arctic perma...
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Benjamin T. Jones, Jennifer Muller, Sebastian O?Shea, Asan Bacak, Grant Allen, Martin Gallagher, Keith Bower, Michael Le Breton, Thomas J. Bannan, Stephane Bauguitte, John Pyle, Dave Lowry, Rebecca Fisher, James France, Euan Nisbet, Dudley Shallcross and Carl Percival
This study presents the first gaseous formic acid (HC(O)OH) concentration measurements collected over the Fenno-Scandinavian wetlands (67.9?68.0° N, 22.1?27.8° E) as part of the MAMM (Methane and other greenhouse gases in the Arctic-Measurements, process...
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Kai Dresia, Eldin Kurudzija, Jan Deeken and Günther Waxenegger-Wilfing
Accurate calculations of the heat transfer and the resulting maximum wall temperature are essential for the optimal design of reliable and efficient regenerative cooling systems. However, predicting the heat transfer of supercritical methane flowing in c...
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Alanna L. Lecher and Katherine R. M. Mackey
Submarine groundwater discharge (SGD) is a global and well-studied geological process by which groundwater of varying salinities enters coastal waters. SGD is known to transport bioactive solutes, including but not limited to nutrients (nitrogen, phospho...
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Chengcheng Peng, Hengfei Li, Nan Yang and Mingzhi Lu
Peatlands store large amounts of carbon in wetland ecosystems. The hydrological conditions within peatlands are important factors that affect the biochemical cycle and patterns of greenhouse gas emissions in these peatlands. This study was carried out in...
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Y. V. SWAMY,G. N. NIKHIL,R. VENKANNA
Methane (CH4) and nitrous oxide (N2O) emission estimates were made for Vigna mungo and Vigna radiata legumes. The affecting soil parameters like redox potential, soil temperature were studied to evaluate CH4 and N2O emissions. The CH4 was negative and N2...
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Ibrahim Tursunovic and Davide Papurello
The energy sector is the main source of greenhouse gases, so it has the highest potential for improvement. The improvements can be achieved by generating energy from renewable sources. It is necessary to combine production from renewable sources with sto...
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Leopold I. Lobkovsky, Alexey A. Baranov, Igor A. Garagash, Mukamay M. Ramazanov, Irina S. Vladimirova, Yurii V. Gabsatarov, Dmitry A. Alekseev and Igor P. Semiletov
A correlation is observed between changes in the level of Earth?s seismic activity and increments of the atmospheric methane concentration over the past 40 years. Trigger mechanisms are proposed for methane emissions and glacier collapse in polar regions...
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Kourosh Kian, Caleb M Woodall, Jennifer Wilcox and Simona Liguori
H2 permeation and separation properties of two Pd-based composite membranes were evaluated and compared at 400 °C and at a pressure range of 150 kPa to 600 kPa. One membrane was characterized by an approximately 8 μm-thick palladium (Pd)-gold (Au)...
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Gleb Kraev, Ernst-Detlef Schulze, Alla Yurova, Alexander Kholodov, Evgeny Chuvilin and Elizaveta Rivkina
Evidences of highly localized methane fluxes are reported from the Arctic shelf, hot spots of methane emissions in thermokarst lakes, and are believed to evolve to features like Yamal crater on land. The origin of large methane outbursts is problematic. ...
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