Results 41 to 50 of about 12,414,527 (394)
Energies, 2016 A two-dimensional, single-phase, isothermal, multicomponent, transient model is built to investigate the transport phenomena in unitized regenerative fuel cells (URFCs) under the condition of switching from the fuel cell (FC) mode to the water ...
Lulu Wang +3 more
doaj +1 more source
Compound Fault Feature Extraction of Wind Power Gearbox Based on DRS and Improved Autogram
Zhongguo dianli, 2023 Compound fault feature extraction is the key to analyzing the root cause of wind power gearbox faults. A compound fault feature extraction method based on DRS and improved Autogram is proposed.
Haifei MA +4 more
doaj +1 more source
Performance Study on a Single-Screw Expander for a Small-Scale Pressure Recovery System
Energies, 2016 A single-screw expander with 195 mm diameter is developed to recover pressure energy in letdown stations. An experiment system is established using compressed air as a working fluid instead of natural gas.
Guoqiang Li +5 more
doaj +1 more source
Case Studies in Thermal Engineering, 2023 China has promised to reach its peak carbon dioxide emissions by 2030. Power generation emits the most carbon dioxide in China. Fossil fuels are currently still the largest sources of energy for electricity generation in China.
Xinxin Zhang, Kaili Xu
doaj +1 more source
Nature Communications, 2019 Persistent luminescence is a fascinating phenomenon with exceptional applications. However, the development of organic materials capable of persistent luminescence, such as organic persistent room-temperature phosphorescence, lags behind for their ...
Weijun Zhao +7 more
semanticscholar +1 more source
Nonequilibrium Energy Transfer at Nanoscale: A Unified Theory from Weak to Strong Coupling [PDF]
, 2014 We investigate the microscopic mechanism of quantum energy transfer in the nonequilibrium spin-boson model. By developing a nonequilibrium polaron-transformed Redfield equation based on fluctuation decoupling, we dissect the energy transfer into multi ...
Cao, Jianshu, Ren, Jie, Wang, Chen
core +2 more sources
The Effects of CO2 Additional on Flame Characteristics in the CH4/N2/O2 Counterflow Diffusion Flame
Molecules, 2021 The effects (chemical, thermal, transport, and radiative) of CO2 added to the fuel side and oxidizer side on the flame temperature and the position of the flame front in a one-dimensional laminar counterflow diffusion flame of methane/N2/O2 were studied.
Ying Chen +3 more
doaj +1 more source
Coherent and incoherent dynamics in excitonic energy transfer: correlated fluctuations and off-resonance effects [PDF]
, 2011 We study the nature of the energy transfer process within a pair of coupled two-level systems (donor and acceptor) subject to interactions with the surrounding environment.
A. Nitzan +4 more
core +1 more source
Case Studies in Thermal EngineeringSteam generating heat pumps (SGHPs) offer a promising alternative to coal-fired boilers. To address the lack of general optimization strategy of autocascade SGHP (ASGHP) for variable operating conditions and variable cycle configurations, this paper ...
Xudong Ma +4 more
doaj +1 more source