Results 101 to 110 of about 313,296 (283)

Experimental study on filling and seepage reduction laws of chemical grouting slurry in cemented porous media

open access: yesMeikuang Anquan
With the increase in the depth of coal resource mining and the extension of underground engineering to deeper areas, the problem of sandstone pore water damage has become increasingly prominent.
Xiaowei MA   +5 more
doaj   +1 more source

Towards a liquid Argon TPC without evacuation: filling of a 6 m^3 vessel with argon gas from air to ppm impurities concentration through flushing

open access: yes, 2010
In this paper we present a successful experimental test of filling a volume of 6 m$^3$ with argon gas, starting from normal ambient air and reducing the impurities content down to few parts per million (ppm) oxygen equivalent. This level of contamination
A Curioni   +23 more
core   +1 more source

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

open access: yesAdvanced Functional Materials, EarlyView.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida   +16 more
wiley   +1 more source

Secondary Solidification Behavior of A356 Aluminum Alloy Prepared by the Self-Inoculation Method

open access: yesMetals, 2017
Semisolid slurry of A356 aluminum alloy was prepared by Self-Inoculation Method, and the secondary solidification behavior during rheo-diecasting forming process was researched.
Ming Li   +4 more
doaj   +1 more source

Calibration of liquid argon and neon detectors with $^{83}Kr^m$

open access: yes, 2009
We report results from tests of $^{83}$Kr$^{\mathrm{m}}$, as a calibration source in liquid argon and liquid neon. $^{83}$Kr$^{\mathrm{m}}$ atoms are produced in the decay of $^{83}$Rb, and a clear $^{83}$Kr$^{\mathrm{m}}$ scintillation peak at 41.5 keV ...
Cahn, S. B.   +6 more
core   +1 more source

MnI‐Functionalized Covalent Organic Framework as Efficient Electrocatalyst for CO2 Reduction in a Catholyte‐Free Zero‐Gap Electrolyzer

open access: yesAdvanced Functional Materials, EarlyView.
This work demonstrates the successful integration of a phenanthroline‐based 2D COF with MnI catalytic sites into a catholyte‐free membrane‐electrode‐assembly cell for CO2 electroreduction. The crystalline COF actively suppresses Mn⁰–Mn⁰ dimerization, achieving a turnover frequency of 617 h⁻¹ at 2.8 V (full‐cell potential), and enabling stable operation.
Laura Spies   +8 more
wiley   +1 more source

Effect of a cryocooler on thermodynamic behavior of cryogenic liquid during storage

open access: yesCase Studies in Thermal Engineering
To probe effective control strategy of the pressure buildup for a tank equipped with a cryocooler during storage of cryogenic liquids, a time-dependent thermodynamic model is developed.
Zongli Wu   +6 more
doaj   +1 more source

Theoretical prediction of the effect of heat transfer parameters on cooling rates of liquid-filled plastic straws used for cryopreservation of spermatozoa.

open access: yesCryo letters, 2010
Fil: Chirife, Jorge. Pontificia Universidad Católica Argentina "Santa María de los Buenos Aires". Facultad de Ciencias Agrarias.
Sansinena, Marina Julia   +4 more
openaire   +2 more sources

Self‐supportive Three‐Way Photoelectrochemical System Achieving Uranium Recycling, Organic Oxidation, and Electricity Generation in Complex Waters

open access: yesAdvanced Functional Materials, EarlyView.
A self‐sustaining solar photoelectrochemical cell (SS‐PEC) is developed to recover uranium from aqueous UO22+ with concurrent organic oxidation and electricity production. The monolithical photoanode directly captures electrons from organic compounds, leading to the oxidation of organic compounds and the decomposition of uranium‐organic complexes ...
Yumei Wang   +7 more
wiley   +1 more source

Correlated photon-pair generation in a liquid-filled microcavity

open access: yesNew Journal of Physics, 2019
We report on the realization of a liquid-filled optical microcavity and demonstrate photon-pair generation by spontaneous four-wave mixing. Our source has a spectral brightness of 45 ± 7 mW ^−2 s ^−1 MHz ^−1 and the bandwidth of the emitted photons is ...
Felix Rönchen   +2 more
doaj   +1 more source

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