Results 21 to 30 of about 1,475,197 (300)

Crystal structure of (Z)-6-methoxy-2-(2,2,2-trifluoro-1-hydroxyethylidene)-2,3-dihydro-1H-inden-1-one, C12H6F6O3

open access: yesZeitschrift für Kristallographie - New Crystal Structures, 2017
C12H6F6O3, monoclinic, P21/c (no. 14), a = 9.433(1) Å, b = 15.567(2) Å, c = 7.682(1) Å, β = 102.83(1)°, V =1099.95(3) Å3, Z = 4, Rgt(F) = 0.0433, wRref(F2) = 0.1264, T = 293 K.
Xing DongYe   +3 more
doaj   +1 more source

CO2conversion by plasma: how to get efficient CO2conversion and high energy efficiency

open access: yesPhysical Chemistry Chemical Physics, 2021
Plasma technology, combined with activation on surfaces, is a novel way to convert CO2using green electricity.
Yongxiang Yin   +5 more
openaire   +3 more sources

Identification method of all-operating-point admittance model for wind farms considering frequency-coupling characteristics

open access: yesInternational Journal of Electrical Power & Energy Systems
Admittance identification is an effective tool to solve the issue of black-box admittance modeling in wind farms. However, due to the large operating range of wind farms, it is difficult to accurately identify the admittance model of wind farms under all
Zilin Zhang   +6 more
doaj   +1 more source

Value-addition of water hyacinth and para grass through pyrolysis and hydrothermal liquefaction

open access: yesCarbon Resources Conversion, 2019
Hydrothermal liquefaction (HTL) and pyrolysis (Py) of Loktak lake biomass mixture of water hyacinth (WH) and para grass (PG) were carried out at 260–300 °C and 300–500 °C to compare the products yield and chemical characteristics of the products. In case
Dinabandhu Sahoo   +11 more
doaj   +1 more source

Analysis and Experiment of Laser Energy Distribution of Laser Wireless Power Transmission Based on a Powersphere Receiver

open access: yesPhotonics, 2023
Laser wireless power transmission (WPT) is one of the most important technologies in the field of long-range power transfer. This technique uses a laser as a transmission medium instead of conventional physical or electrical connections to perform WPT ...
Tiefeng He   +7 more
doaj   +1 more source

A Watt-Level, High-Quality LG0,±1 Vortex Beam made from a Nd:YVO4 Laser Pumped by an Annular Beam

open access: yesPhotonics
In this work, we demonstrate a Watt-level, high-quality Laguerre–Gaussian (LG) LG0±1 vortex mode directly output from an end-pumped Nd:YVO4 laser by using an axicon-based annular pump beam.
Minghao Guo   +6 more
doaj   +1 more source

Analysis of the Driving Altitude and Ambient Temperature Impact on the Conversion Efficiency of Oxidation Catalysts

open access: yesApplied Sciences, 2021
Worldwide emission standards are extending their requirements to cover engine operation under extreme ambient conditions and fill the gap between the type-approval and real driving conditions.
José Ramón Serrano   +3 more
doaj   +1 more source

Efficiency of Energy Conversion in Thermoelectric Nanojunctions

open access: yes, 2009
Using first-principles approaches, this study investigated the efficiency of energy conversion in nanojunctions, described by the thermoelectric figure of merit $ZT$. We obtained the qualitative and quantitative descriptions for the dependence of $ZT$ on
Baheti K.   +32 more
core   +1 more source

Heat absorption properties of ground material for solar chimney power plants [PDF]

open access: yes, 2016
One of the major challenges to the widespread application of the solar chimney power plant is its low-power conversion efficiency because of the three technological processes involved.
Al-Azawiey, S. S., Hassan, S. B.
core   +1 more source

Multi-Source Information Fusion for Environmental Perception of Intelligent Vehicles Using Sage-Husa Adaptive Extended Kalman Filtering

open access: yesSensors
With the rapid advancement of intelligent driving technology, multi-source information fusion has become a vital topic in the field of environmental perception.
Yibo Meng, Huifang Kong, Tiankuo Liu
doaj   +1 more source

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