Results 21 to 30 of about 14,966,199 (305)

Study of the Structure and Catalytic Activity of B-Site Doping Perovskite for an Inferior Anthracite Coal Combustion

open access: yesEnergies, 2023
The unique structure and physical properties of perovskite-type catalysts make them highly promising for catalyzing efficient coal combustion. Mesoporous perovskite LaNixFe1−xO3 (x = 0.2, 0.4, 0.6, 0.8) coal combustion catalysts were synthesized using ...
Guohong Wang   +4 more
doaj   +1 more source

Power Valve: for low power operation and low stand-by power

open access: yesIEICE Electronics Express, 2005
The concept of Power Valve is presented. It consists of power switch transistors and control circuits, which give variable impedance to the power supply. The circuit controls the internal power supply voltage of logic circuits and reduces the voltage swing of signals. An experiment using a 130-nm test chip showed a 36.0% operating power reduction for a
Yamashita, Takahiro   +2 more
openaire   +2 more sources

Effect of Contact Angle Hysteresis on Evaporation Dynamics of a Sessile Drop on a Heated Surface [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2022
Contact angle hysteresis (CAH) is a significant factor affecting the drop motion on solid substrates. A model of CAH is introduced to explore the influence of CAH on the dynamics of a sessile drop on a uniformly heated surface, and a two-dimensional ...
X. M. Ye   +3 more
doaj   +1 more source

Economics of nuclear power [PDF]

open access: yes, 2012
This paper is the fourth in a series of 8 that make up the evidence base for SDC report 'The role of nuclear power in a low carbon economy'.Publisher ...
Science and Technology Policy Research, University of Sussex   +1 more
core   +2 more sources

Ultralow-Power SOTB CMOS Technology Operating Down to 0.4 V

open access: yesJournal of Low Power Electronics and Applications, 2014
Ultralow-voltage (ULV) CMOS will be a core building block of highly energy efficient electronics. Although the operation at the minimum energy point (MEP) is effective for ULP CMOS circuits, its slow operation speed often means that it is not used in ...
Nobuyuki Sugii   +9 more
doaj   +1 more source

On the Spectral Identification and Wavelength Dependence of Rare-Earth Ore Emission by Laser-Induced Breakdown Spectroscopy

open access: yesChemosensors, 2022
The increasing demand for rare earth elements (REE) requires faster analysis techniques for their rapid exploration. Laser-induced breakdown spectroscopy (LIBS) has on-site and real time analysis capability.
Muhammad Sher Afgan   +6 more
doaj   +1 more source

Reducing CO2 emissions : nuclear and the alternatives [PDF]

open access: yes, 2012
This paper is the second in a series of 8 that make up the evidence base for SDC report 'The role of nuclear power in a low carbon economy'.Publisher ...
Sustainable Development Commission
core   +2 more sources

Transcriptome analysis of low-dose ionizing radiation-impacted genes in CD4+ T-cells undergoing activation and regulation of their expression of select cytokines

open access: yesJournal of Immunotoxicology, 2018
Immune cells are known as the most sensitive tissue for ionizing radiation. Numerous reports relating with the effect of low-dose ionizing radiation (LDIR) on immune activities showed that LDIR can induce immune-potentiation via modulating the activity ...
Seong-Jun Cho   +4 more
doaj   +1 more source

Effect of high-temperature and rapid pyrolysis condition of rice husk on the evolution of char structure

open access: yesMeitan xuebao, 2023
The conversion level of carbon in the process of biomass char utilization determines the overall efficiency of subsequent utilization, while the conversion rate of biomass char depends to a certain extent on the physical and chemical structure of biomass.
Xinyu WANG   +6 more
doaj   +1 more source

Review on Coupled Thermo-Hydraulic Performance of Nanofluids and Microchannels

open access: yesNanomaterials, 2022
As electronic components continue to be miniaturized, the heat flux density continues to increase. Scholars have proposed the use of microchannel heat sinks (MCHS) to dissipate heat from devices with high heat flux density, and have pointed out that the ...
Yuwei Wang   +3 more
doaj   +1 more source

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