Results 1 to 10 of about 9,113,592 (299)

Ultrafast internal conversion without energy crossing [PDF]

open access: yesResults in Chemistry, 2022
Ultrafast (sub-picosecond) internal conversion can occur between electronic states without energetically accessible conical intersections. For that, the molecule must remain in a region of at least weak nonadiabatic coupling, multiplying the odds of a ...
Saikat Mukherjee, Mario Barbatti
doaj   +4 more sources

Scale-bridging interface design enables high-performance sustainable thermoelectrics [PDF]

open access: yesNature Communications
Improving energy efficiency and reducing resource waste motivate sustainable thermoelectric technologies for harvesting low-grade heat. Yet achieving high-performance and durable systems remains challenging due to coupled transport and multiscale ...
Gang Wu, Airan Li, Xinzhi Wu, Takao Mori
doaj   +2 more sources

Structural design of multi-body heave wave energy conversion system and analysis of energy efficiency of floating body on water surface [PDF]

open access: yesMechanical Sciences, 2022
Due to the defects of the internal structure and energy supply carrier, conventional deep sea unoccupied marine equipment cannot meet the requirements of low power consumption.
D. Cong   +6 more
doaj   +1 more source

Three Frequency Up-Converting Piezoelectric Energy Harvesters Caused by Internal Resonance Mechanism: A Narrative Review

open access: yesMicromachines, 2022
Low frequency mechanical vibrations are ubiquitous in practical environments, and how to efficiently harvest them with piezoelectric materials remains a challenge.
Jian Liu   +4 more
doaj   +1 more source

Developing a low-carbon hybrid of ammonia fuel cell and internal combustion engine for carbon neutrality

open access: yesApplications in Energy and Combustion Science, 2023
With global warming and an increase in extreme weather, reducing carbon emissions in response to climate change has become a global consensus. Compared with traditional fuel vehicles, hybrid vehicles have the benefits of energy savings, low grid-load ...
Guoqing Wang   +3 more
doaj   +1 more source

Three-Dimensional Performance Analysis of a Radial-Inflow Turbine for Ocean Thermal Energy Conversion System

open access: yesJournal of Marine Science and Engineering, 2021
Turbine is one of the key components of the ocean thermal energy conversion system (OTEC), and its aerodynamic performance and geometric dimension affect the performance of the system directly.
Yun Chen   +3 more
doaj   +1 more source

Variability and energy budget of the baroclinic tides in the Arabian Sea

open access: yesFrontiers in Marine Science, 2023
A 3D high-resolution general ocean circulation model was implemented and validated to study the characteristics and seasonal variability of the internal tides in the Arabian Sea (AS).
Jingyi Ma   +4 more
doaj   +1 more source

Performance of Thermoelectric Power-Generation System for Sufficient Recovery and Reuse of Heat Accumulated at Cold Side of TEG with Water-Cooling Energy Exchange Circuit

open access: yesEnergies, 2020
Aiming to reduce thermal energy loss at the cold side of a thermoelectric generator (TEG) module during thermoelectric conversion, a thermoelectric energy conversion system for heat recovery with a water-cooling energy exchange circuit was devised.
Zhe Zhang   +4 more
doaj   +1 more source

DICE: Apparatus for Detection of Internal Conversion Electrons [PDF]

open access: yesEPJ Web of Conferences, 2023
An apparatus for the Detection of Internal Conversion Electrons (DICE) has been built and commissioned at Johannes Gutenberg University Mainz (JGU) for the study of recoil ion sources of 239Pu, which emit 235mU nuclei that deexcite to the ground state by
Reed Lauren E.   +2 more
doaj   +1 more source

Experimental Study on Influence of Borehole Arrangement on Energy Conversion and Acoustic Characteristics of Coal-Like Material Sample

open access: yesShock and Vibration, 2020
This paper examines the effects of borehole arrangement on the failure process of coal-like materials based on its energy conversion and acoustic characteristics from the perspectives of energy, AE energy, AE spectrum, and frequency band.
Chuanbo Hao   +3 more
doaj   +1 more source

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