Results 31 to 40 of about 3,447,211 (328)

An Energy Efficient and Lifetime Ratio Improvement Methods Based on Energy Balancing

open access: yesInternational Journal of Engineering and Advanced Technology, 2019
WSN consist of set of Sensing points which are responsible for collecting the detected information and then send the packets towards control centre which is responsible for processing of data. The applications of WSN include environmental data analysis, defence data collection and information.
Mr. Niranjan L, Dr. Manoj Priyatham M
openaire   +1 more source

Energy efficiency of membrane distillation: Simplified analysis, heat recovery, and the use of waste-heat.

open access: yesEnvironment International, 2020
Membrane distillation (MD) is a thermal desalination process that is advantageous due to its ability to harness low-grade waste heat to separate highly saline feedstock. However, like any thermal desalination process, the energy efficiency depends on the
Kofi S. S. Christie   +2 more
semanticscholar   +1 more source

Maximum power, ecological function and efficiency of an irreversible Carnot cycle. A cost and effectiveness optimization [PDF]

open access: yes, 2007
In this work we include, for the Carnot cycle, irreversibilities of linear finite rate of heat transferences between the heat engine and its reservoirs, heat leak between the reservoirs and internal dissipations of the working fluid. A first optimization
Aragon-Gonzalez, G   +3 more
core   +3 more sources

On the Power Efficiency of Sensory and Ad Hoc Wireless Networks [PDF]

open access: yes, 2006
We consider the power efficiency of a communications channel, i.e., the maximum bit rate that can be achieved per unit power (energy rate). For additive white Gaussian noise (AWGN) channels, it is well known that power efficiency is attained in the low ...
Dana, Amir F., Hassibi, Babak
core   +2 more sources

Super‐heating degree responsive control strategy of variable refrigerant flow air conditioning system for energy saving and stable operation

open access: yesEnergy Science & Engineering, 2023
The control strategy is important for variable refrigerant flow (VRF) air conditioning system to realize energy saving and stable operation. In this work, the super‐heating degree (SHD) responsive control strategy was developed to dynamically adjust the ...
Qiu Tu   +4 more
doaj   +1 more source

Scintillation efficiency of liquid xenon for nuclear recoils with the energy down to 5 keV

open access: yes, 2005
The scintillation efficiency of liquid xenon for nuclear recoils has been measured to be nearly constant in the recoil energy range from 140 keV down to 5 keV.
A. Lindote   +22 more
core   +1 more source

Permeability Variation of Tectonic Coal under Microwave Radiation

open access: yesTaiyuan Ligong Daxue xuebao, 2022
On a microwave radiation triaxial loading experimental system with independent intellectual property rights, seepage experiments of coal samples were condected under the action of different microwave radiation power, radiation time, and effective force ...
Yongli ZHANG   +3 more
doaj   +1 more source

Loose mechanochemical coupling of molecular motors

open access: yes, 2011
In living cells, molecular motors convert chemical energy into mechanical work. Its thermodynamic energy efficiency, i.e. the ratio of output mechanical work to input chemical energy, is usually high.
Howard J.   +4 more
core   +1 more source

A critical review on the definitions used to calculate the energy efficiency coefficients of water electrolysis cells working under near ambient temperature conditions

open access: yes, 2020
The accurate knowledge of the energy efficiency coefficient of near ambient temperature water electrolysis (Alkaline, PEM or AEM Electrolyzer) is a critical-point to estimate the total cost of electrolytic hydrogen.
C. Lamy, P. Millet
semanticscholar   +1 more source

Trends in Scientific Literature on Energy Return Ratio of Renewable Energy Sources for Supporting Policymakers

open access: yesAdministrative Sciences, 2020
The scarcity of fossil fuels and their environmental impact as greenhouse gas (GHG) emissions, have prompted governments around the world to both develop research and foster the use of renewable energy sources (RES), such as biomass, wind, and solar ...
Roberto Leonardo Rana   +3 more
doaj   +1 more source

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