Results 71 to 80 of about 3,120,490 (198)

Calcium and energy transfer

open access: yesThe Journal of Physiology, 2005
A recent article in The Journal of Physiology by Gueguen et al. (2005) shows that an efficient metabolic coupling between mitochondrial creatine kinase (mtCK) or adenylate kinase (AK2), and ADP rephosphorylation via mitochondrial respiration is tissue specific: it is functioning in skinned muscle of oxidative type I and type IIa but not in IIx type ...
Saks, Valdur   +2 more
openaire   +3 more sources

Performance Analysis and Rapid Optimization of Vehicle ORC Systems Based on Numerical Simulation and Machine Learning

open access: yesEnergies
The organic Rankine cycle (ORC) system is an important technology for recovering energy from the waste heat of internal combustion engines, which is of significant importance for the improvement of fuel utilization. This study analyses the performance of
Xin Wang   +5 more
doaj   +1 more source

Vibronic coupling explains the ultrafast carotenoid-to-bacteriochlorophyll energy transfer in natural and artificial light harvesters

open access: yes, 2015
The initial energy transfer in photosynthesis occurs between the light-harvesting pigments and on ultrafast timescales. We analyze the carotenoid to bacteriochlorophyll energy transfer in LH2 Marichromatium purpuratum as well as in an artificial light ...
Blankenship R. E.   +14 more
core   +2 more sources

Performance and Stability Analysis of A Hydrogen Production System Based on Solar Electrolysis of Water

open access: yes南方能源建设
[Objective] The hydrogen production system based on solar electrolysis of water is limited by the volatility and intermittency of solar energy, the conversion efficiency of the photovoltaic system, and the performance of the electrolysis cell.
Mengwei MIAO   +4 more
doaj   +1 more source

Electrochemical Fabrication of rGO-embedded Ag-TiO2 Nanoring/Nanotube Arrays for Plasmonic Solar Water Splitting

open access: yesNano-Micro Letters, 2019
Effective utilization of hot electrons generated from the decay of surface plasmon resonance in metal nanoparticles is conductive to improve solar water splitting efficiency.
Lixia Sang, Lei Lei, Clemens Burda
doaj   +1 more source

Slide Valves for Single-Screw Expanders Working Under Varied Operating Conditions

open access: yesEnergies, 2016
This paper fully describes the working principle of slide valves in single-screw expanders (SSEs). A geometric analysis of suction and volume ratio slide valves is presented to determine the relations between volume ratio, suction closure volume ...
Yuting Wu   +7 more
doaj   +1 more source

Efficient estimation of energy transfer efficiency in light-harvesting complexes

open access: yes, 2012
The fundamental physical mechanisms of energy transfer in photosynthetic complexes is not yet fully understood. In particular, the degree of efficiency or sensitivity of these systems for energy transfer is not known given their non-perturbative and non ...
A. Shabani   +14 more
core   +1 more source

Economic Analysis of Organic Rankine Cycle Using R123 and R245fa as Working Fluids and a Demonstration Project Report

open access: yesApplied Sciences, 2019
The organic Rankine cycle (ORC) is a popular technology used in waste heat recovery and low-grade heat utilization, which are two important measures to solve the problems brought by the energy crisis.
Xinxin Zhang   +4 more
doaj   +1 more source

Comprehensive performance evaluation of steam generating heat pumps for industrial waste heat recovery

open access: yesCarbon Neutrality
Steam generating heat pump (SGHP) is a key technology for industrial decarbonization. For comprehensive evaluation of the feasibility and reliability of SGHP in different industrial sector, the work develops a thorough evaluation model for assessing the ...
Xudong Ma   +5 more
doaj   +1 more source

Mass Energy and Flow in closed ecosystems [PDF]

open access: yes, 1972
The general equations of biomass and energy transfer for an n-species, closed ecosystem are written. It is demonstrated how in "ecological time" the parameters describing the dynamics of biomass transfer are related to the parameters of energy transfer ...
Ulanowicz, Robert
core  

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