Results 81 to 90 of about 110,829 (308)

Methane to Liquid Fuels over Metal Loaded HZSM-5 Catalyst [PDF]

, 2011
ZSM-5 zeolite is an acidic catalyst that is highly potential for the conversion of natural gas to liquid fuels. One of the variables that controls the acidity of the ZSM-5 is its Si/Al ratio.
Anggoro, Didi Dwi, Saidina Amin, Nor Aishah   +1 more
core  

Three years of greenhouse gas column-averaged dry air mole fractions retrieved from satellite – Part 2: Methane [PDF]

, 2008
Carbon dioxide (CO₂) and methane (CH₄) are the two most important anthropogenic greenhouse gases. SCIAMACHY on ENVISAT is the first satellite instrument whose measurements are sensitive to concentration ...
Bergamaschi, P., Schneising, O., Burrows, J. P., Burrows, J.P., Peters, W., Bovensmann, H., P. Bergamaschi, J. P. Burrows, W. Peters, Buchwitz, M., O. Schneising, H. Bovensmann, M. Buchwitz   +12 more
core   +1 more source

From the Discovery of the Giant Magnetocaloric Effect to the Development of High‐Power‐Density Systems

Advanced Materials Technologies, EarlyView.
The article overviews past and current efforts on caloric materials and systems, highlighting the contributions of Ames National Laboratory to the field. Solid‐state caloric heat pumping is an innovative method that can be implemented in a wide range of cooling and heating applications.
Agata Czernuszewicz, Yaroslav Mudryk, Jun Cui, Lucas Griffith, Duane D. Johnson, Julie Slaughter   +5 more
wiley   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

Advanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu, Mengyao Xiao, Zhouli Sui, Yinpeng Wang, Daoye Zheng, Yuxin Liu, Luwei Wang, Huajun Liu, Chengkuo Lee   +8 more
wiley   +1 more source

A Perspective on the Applications of Triphasic Gas Storage in Electrochemical Systems

Advanced Science, EarlyView.
Gas storage in microporous materials positioned locally at an electrode or electrocatalyst surface enhances electrochemical processes. Abstract Microporous materials store gases under dry conditions (e.g., hydrogen or oxygen via physisorption), but in some cases microporous materials also show triphasic (e.g., in a solid|gas|liquid system) gas storage ...
Zhongkai Li, Corin T. Scott, Taku Suzuki‐Osborne, John P. Lowe, Dominic Taylor, Mariolino Carta, Neil B. McKeown, Andrew D. Burrows, Lucia H. Mascaro, Frank Marken   +9 more
wiley   +1 more source

Prediction of Coalbed Methane Production Based on BP Neural Network [PDF]

E3S Web of Conferences, 2019
The low average daily gas production per well and the poor economic benefit of exploration and development have become the main problems restricting the exploration and development of coalbed methane in China.
Zhang Tianxiang, Tang Yifang, Wu Jianjun, Guo Zixi, Li Bing   +4 more
doaj   +1 more source

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

Evaluating the effects of essential oils on methane production and fermentation under in vitro conditions

Italian Journal of Animal Science, 2017
The effects of adding essential oils (EO) on rumen fermentation and methane production were examined. The aim of experiment one was to screen the effects of four different EO (clove oil (CLO), white thyme oil (WTO), citronella oil (CTO) and anise oil ...
Mevlüt Günal, Brittany Pinski, Amer A. AbuGhazaleh   +2 more
doaj   +1 more source

Evaluation of Methane Production of Six Varieties of Date Pulp Waste (Phoenix Dactylifera L.)

Chemical Engineering Transactions, 2018
Anaerobic digestion is the biodegradation of the waste materials with the aid of microorganisms which grow in the absence of oxygen. Fruits and vegetable wastes are a good substrate with potential to produce biomethane and are abundantly available.
Ikbel Souli, Xiaojun Liu, Thomas Lendormi, Nizar Chaira, Ali Ferchichi, Jean-Louis Lanoiselle   +5 more
doaj   +1 more source

Methane release from warming-induced hydrate dissociation in the West Svalbard continental margin: timing, rates, and geological controls

, 2013
Hundreds of plumes of methane bubbles, first observed in 2008, emanate from an area of the seabed off West Svalbard that has become 1°C warmer over the past 30 years. The distribution of the plumes, lying close to and upslope from the present upper limit
Thatcher, K.E., Westbrook, G.K., Sarkar, S., Minshull, T.A.   +3 more
core   +1 more source