Results 81 to 90 of about 6,130,353 (288)

Experimental Simulation of the Exploitation of Natural Gas Hydrate

Energies, 2012
Natural gas hydrates are cage-like crystalline compounds in which a large amount of methane is trapped within a crystal structure of water, forming solids at low temperature and high pressure.
Chang-Yu Sun, Guang-Jin Chen, Ben-Cheng Wu, Xin Yang, Ke-Hua Su, Qing Yuan, Bei Liu   +6 more
doaj   +1 more source

Grain size measurements of natural gas hydrates

Marine Geology, 2010
article i nfo Methane hydrates are present in marine seep systems and occur within the gas hydrate stability zone. Very little is known about their crystallite sizes and size distributions because they are notoriously difficult to measure. Crystal size distributions are usually considered as one of the key petrophysical parameters because they ...
Klapp, Stephan A., Hemes, Susanne, Klein, Helmut, Bohrmann, Gerhard, MacDonald, Ian, Kuhs, Werner F.   +5 more
openaire   +3 more sources

Inductively Expandable Supraparticles as Microscopic Force Generators for Remote Mechanical Actuation

Advanced Materials, EarlyView.
This study demonstrates the combination of magnetic nanoparticles and functional blowing agents into supraparticles. Upon induction heating, they actuate via rapid gas generation or extensive volume expansion. These supraparticles lift up to 25 000 times their own mass and rapidly open cured epoxy resins, providing a versatile strategy for fast micron ...
Leoni Luthardt, Stephan Müssig, Robert Luxenhofer, Karl Mandel   +3 more
wiley   +1 more source

Joint seismic and electrical measurements of gas hydrates in continental margin sediments

, 2008
EThOS - Electronic Theses Online ServiceGBUnited ...
Ellis, Michelle H, Ellis, Michelle H.
core   +1 more source

Towards Commercial Gas Production from Hydrate Deposits

Energies, 2011
Over the last decade global natural gas consumption has steadily increased since many industrialized countries are substituting natural gas for coal to generate electricity.
Richard Dawe, Jill Marcelle-De Silva
doaj   +1 more source

Atom–Cluster Synergy in Scalable Fe–Ru Dual‐Site Architectures Accelerates Alkaline Hydrogen Evolution

Advanced Materials, EarlyView.
A mechanochemically synthesized dual‐site electrocatalyst (RuNC@Fe1NC) accelerates alkaline hydrogen evolution via atomic‐level spatial decoupling. Oxophilic Fe single atoms effectively dissociate water, while adjacent Ru nanoclusters rapidly recombine hydrogen.
Jae‐Hoon Baek, Seong Hyeon Kweon, Sun Gwan Cha, Se Jung Lee, Jinwoo Baek, Dong Hyeok Kwon, Hojeong Lee, Youngkook Kwon, Sang Kyu Kwak, Jong‐Beom Baek   +9 more
wiley   +1 more source

A LABORATORY PROTOCOL FOR THE ANALYSIS OF NATURAL GAS HYDRATES

, 2008
For a number of years the NRC group has been working on a laboratory protocol for the analysis of gas hydrate that has been recovered from various natural sites.
Lu, Hailong, Ripmeester, John A.
core   +1 more source

A Multifunctional Ionograsper Enabling Ion‐Redistribution Proximity Sensing and Structural‐Reconfiguration‐Driven Bidirectional Actuation

Advanced Materials, EarlyView.
A solid‐state ionic actuator integrates sensing, actuation, and memory within one material. A brief UV pulse induces long‐lasting deformation via coupled network rearrangement, dehydration, and rehydration, while ionic redistribution enables self‐powered sensing, supporting multifunctional, energy‐efficient soft robotic functions without continuous ...
Yong Min Kim, Jin Han Kwon, Hyeon Woo Yang, Sungryong Kim, Gyeong Rok Lee, Hong Chul Moon   +5 more
wiley   +1 more source

PRELIMINARY REPORT ON THE ECONOMICS OF GAS PRODUCTION FROM NATURAL GAS HYDRATES

, 2008
Economic studies on simulated natural gas hydrate reservoirs have been compiled to estimate the price of natural gas that may lead to economically viable production from the most promising gas hydrate accumulations.
Boswell, Ray, Moridis, George J., Collett, Timothy S., Wilson, Scott J., Walsh, Matt, Patil, Shirish, Hancock, Steve H., Koh, Carolyn A., Sloan, E. Dendy   +8 more
core   +1 more source

Experimental Study on Sand Removal by a Downhole In Situ Spiral-Swirl Natural Gas Hydrate Coupling Separator

Applied Sciences
In natural gas hydrate exploitation, the large amount of sand production directly or indirectly leads to the low efficiency of hydrate exploitation and even the termination of exploitation.
Yufa He, Yang Tang, Yunjian Zhou, Na Xie, Guorong Wang   +4 more
doaj   +1 more source