Results 61 to 70 of about 19,100 (248)

Feasibility of high-helium natural gas exploration in the Presinian strata, Sichuan Basin

Natural Gas Industry B, 2015
Helium in China highly depends on import at present, so the most practical way to change the situation is searching for medium-to-large natural gas fields with high helium content.
Jian Zhang, Wei Yang, Haiyong Yi, Wuren Xie, Zengye Xie, Fuying Zeng, Yongjing Cen   +6 more
doaj   +1 more source

Biodegradable and Recyclable Luminescent Mixed‐Matrix‐Membranes, Hydrogels, and Cryogels based on Nanoscale Metal‐Organic Frameworks and Biopolymers

Advanced Functional Materials, EarlyView.
The study presents biodegradable and recyclable mixed‐matrix membranes (MMMs), hydrogels, and cryogels using luminescent nanoscale metal‐organic frameworks (nMOFs) and biopolymers. These bio‐nMOF‐MMMs combine europium‐based nMOFs as probes for the status of the materials with the biopolymers agar and gelatine and present alternatives to conventional ...
Moritz Maxeiner, Julian Burkhart, Kateryna Borysova, Chiara Mazzariol, Klaus Müller‐Buschbaum   +4 more
wiley   +1 more source

Energy storage in deep salt formations: Geological and geomechanical conditions and potentials with a focus on Latin America

Boletín Geológico
The storage of energy in the form of natural gas in deep, artificially created salt caverns is a proven technology. It balances potential imbalances between the supplier (supply and production of natural gas) and the customer (demand and consumption of ...
Lukas Baumgärtel, Gustavo Garzón-Valencia, Dirk Zapt   +2 more
doaj   +1 more source

New concept on the origin of petroleum and natural gas deposits [PDF]

Journal of Petroleum Exploration and Production Technology, 2016
The scientific basis that underlies the geology of petroleum and natural gas deposit origination has for the past five decades been based upon plate tectonics theory. However, plate tectonics theory depends critically upon physically impossible mantle convection.
openaire   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

Advanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova, Anna Chiara Bressi, Marina Galliani, Attilio Marino, Gianni Ciofani, Eduardo Machado‐Charry, Hilda Gomez Bernal, Alessandra Francini, Luca Sebastiani, Francesco Greco   +9 more
wiley   +1 more source

Methodological basis of mapping signs of industrial helium concentrations in Ukraine (Dnipro-Donetsk depression)

Мінеральні ресурси України
Helium is one of the most valuable industrial gases that is not widely distributed in the atmosphere and in the Earth’s crust. The unique physicochemical properties of helium make it indispensable in a wide range of industrial and research areas.
I. D. Bahrii, V. G. Semeniuk, I. P. Gafych, Ia. M. Kryl   +3 more
doaj   +1 more source

Problems of ecological and technical safety by exploration and production of natural gas hydrates [PDF]

Acta Montanistica Slovaca, 2006
Gas hydrates - the firm crystal connections form water (liquid water, ice, water vapor) and low-molecular waterproof natural gases (mainly methane) whose crystal structure effectively compresses gas e.s.: each cubic meter of hydrate can yield over 160 m3
Chen-Chen, Zhang Zupei, Sun Youhong, V.K. Chistyakov   +3 more
doaj  

Modulating Electrochemical CO2 Reduction Pathways via Interfacial Electric Field

Advanced Functional Materials, EarlyView.
Engineering interfacial electric fields in Cu/ITO electrodes enables precise control of CO2 reduction pathways. Charge transfer from Cu to ITO generates positively charged Cu species that steer selectivity from ethylene toward methane. This work demonstrates how interfacial electric‐field modulation can direct reaction intermediates and transform ...
Mahdi Salehi, Zhengyuan Gao, Sai Phani Kumar Vangala, Amirhossein Farzi, Hamed Heidarpour, Morgan McKee, Nikolay Kornienko, Ali Seifitokaldani   +7 more
wiley   +1 more source

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

Advanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein, Tiago Carneiro Gomes, Eliza Ng, Simon Rondeau‐Gagné, Tricia Breen Carmichael   +4 more
wiley   +1 more source

Declining extent of fen peat deposits over the past 50 years in Ogre Municipality, central Latvia [PDF]

Estonian Journal of Earth Sciences
Latvia’s peatlands play an important role in achieving the country’s climate goals and preserving natural diversity. Approximately 10% of Latvia’s territory is covered by peatlands, more precisely defined as peat deposits.
Normunds Stivrins, Davis Matskins, Ilze Ozola   +2 more
doaj   +1 more source