Results 31 to 40 of about 188,981 (310)

In-sensor neural network for high energy efficiency analog-to-information conversion

open access: yesScientific Reports, 2022
This work presents an on-chip analog-to-information conversion technique that utilizes analog hyper-dimensional computing based on reservoir-computing paradigm to process electrocardiograph (ECG) signals locally in-sensor and reduce radio frequency ...
Sudarsan Sadasivuni   +3 more
doaj   +1 more source

Analysis and Experiment of the Laser Wireless Energy Transmission Efficiency Based on the Receiver of Powersphere

open access: yesIEEE Access, 2021
Long-distance wireless energy transmission is realized by photoelectric conversion through lasers and photovoltaic cells. However, existing devices have low transmission power and low transmission efficiency.
Tiefeng He   +5 more
doaj   +1 more source

INCREASING THE EFFICIENCY OF MARINE ENERGY CONVERSION

open access: yesJournal of marine Technology and Environment, 2021
New approaches need to be taken into account in adopting the configuration of residual heat recovery systems, design, operation and control and to consider equipment and the energy conversion process in the perspective of integrated systems in order to increase measurable energy efficiency in existing marine energy systems as well as other new systems.
openaire   +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

An Agricultural Biogas Plant as a Thermodynamic System: A Study of Efficiency in the Transformation from Primary to Secondary Energy

open access: yesEnergies, 2023
Using a wide range of organic substrates in the methane fermentation process enables efficient biogas production. Nonetheless, in many cases, the efficiency of electricity generation in biogas plant cogeneration systems is much lower than expected, close
Krzysztof Pilarski   +3 more
doaj   +1 more source

Electrokinetic Energy Conversion Efficiency in Nanofluidic Channels

open access: yesNano Letters, 2006
We theoretically evaluate the prospect of using electrokinetic phenomena to convert hydrostatic energy to electrical power. An expression is derived for the energy conversion efficiency of a two-terminal fluidic device in terms of its linear electrokinetic response properties.
van der Heyden, F   +4 more
openaire   +4 more sources

Hysteresis Induced by Incomplete Cationic Redox in Li‐Rich 3d‐Transition‐Metal Layered Oxides Cathodes

open access: yesAdvanced Science, 2022
Activation of oxygen redox during the first cycle has been reported as the main trigger of voltage hysteresis during further cycles in high‐energy‐density Li‐rich 3d‐transition‐metal layered oxides.
Liang Fang   +11 more
doaj   +1 more source

A High-Efficiency Driver Circuit for a Gas-Sensor Microheater Based on a Switch-Mode DC-to-DC Converter

open access: yesSensors, 2020
Low power consumption is one of the critical factors for successful Internet of Things (IoT) applications. In such applications, gas sensors have become a main source of power consumption because energy conversion efficiency of the microheater is ...
Tzu-Sen Yang, Jin-Chern Chiou
doaj   +1 more source

How Do Green Finance and Energy Efficiency Mitigate Carbon Emissions Without Reducing Economic Growth in G7 Countries?

open access: yesFrontiers in Psychology, 2022
Climate change is one of the most serious threats facing the world today. Environmental pollution and depletion of natural resources have been highlighted by the United Nations Sustainable Development Goals (SDGs), paving the way for modern concepts such
Zhen Fang, Can Yang, Xiaowei Song
doaj   +1 more source

Quantum coherence in photosynthesis for efficient solar-energy conversion [PDF]

open access: yesNature Physics, 2014
The crucial step in the conversion of solar to chemical energy in Photosynthesis takes place in the reaction center where the absorbed excitation energy is converted into a stable charge separated state by ultrafast electron transfer events. However, the fundamental mechanism responsible for the near unity quantum efficiency of this process is unknown.
Donatas Zigmantas   +7 more
openaire   +4 more sources

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