Results 61 to 70 of about 1,371,402 (184)

Effect of confining pressure on mechanical behavior of methane hydrate-bearing sediments

open access: yesPetroleum Exploration and Development, 2011
Synthesized gas hydrate in lab was mixed with kaoline to form core samples, so as to simulate the hydrate-bearing sedimentary layers in the seabed. Under conditions of different confining pressure, triaxial compressive tests were conducted on hydrate ...
Yanghui Li   +4 more
doaj   +1 more source

Strong tough hydrogel solar evaporator with wood skeleton construction enabling ultra‐durable brine desalination

open access: yesEcoMat, 2023
Hydrogels, a highly versatile material platform, are poised to become a promising candidate for interfacial solar evaporators on account of their record‐high evaporation rates.
Lin Li   +9 more
doaj   +1 more source

A hydrate blockage detection apparatus for gas pipeline using ultrasonic focused transducer and its application on a flow loop

open access: yesEnergy Science & Engineering, 2020
This paper introduces a novel apparatus and the analyzing method for hydrate blockage detection in natural gas pipeline using the ultrasonic focused testing technique.
Xingbo Li   +6 more
doaj   +1 more source

Simulation for the Effects of Well Pressure and Initial Temperature on Methane Hydrate Dissociation

open access: yesEnergies, 2018
Methane hydrate dissociation is a process of heat and mass transfer, and pressure and temperature are the most important parameters. The influence of pressure and temperature on the hydrate dissociate relationship between the two parameters is the ...
Minghao Yu   +4 more
doaj   +1 more source

Phantom Accretion onto the Schwarzschild de-Sitter Black Hole

open access: yes, 2011
We deal with phantom energy accretion onto the Schwarzschild de-Sitter black hole. The energy flux conservation, relativistic Bernoulli equation and mass flux conservation equation are formulated to discuss the phantom accretion.
Babichev E   +15 more
core   +1 more source

Time-Varying Metasurfaces and Lorentz Non-Reciprocity

open access: yes, 2015
A cornerstone equation of optics, Snell's law, relates the angles of incidence and refraction for light passing through an interface between two media.
Kildishev, Alexander   +2 more
core   +1 more source

Molecular clustering unlocks high-performance hydrovoltaics across temperatures from −35 °C to 80 °C

open access: yesNature Communications
Hydrovoltaic technologies face challenges of low conversion efficiency and narrow operational temperature ranges, limiting their practical applications in extreme environments.
Nan He   +10 more
doaj   +1 more source

Effects of CaO addition into CuO/ZnO/Al2O3 catalyst on hydrogen production through water gas shift reaction

open access: yesInternational Journal of Renewable Energy Development
Hydrogen is a promising renewable energy carrier and eco-friendly alternative to fossil fuels. Water-gas-shift reaction (WGSR) is commonly used to generate hydrogen from renewable biomass feedstocks.
Zulaicha Dwi Hastuti   +9 more
doaj   +1 more source

Effects of cleaning interval of PV module and pyranometer on PV system performances in tropical climate of Indonesia

open access: yesResults in Engineering
Photovoltaic (PV) cleaning is crucial to maintain optimal Performance Ratio (PR) in PV systems. PR is a key metric for acceptance tests and operations.
Oo Abdul Rosyid   +9 more
doaj   +1 more source

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