Results 51 to 60 of about 22,615,899 (301)

Solid Oxide Fuel Cell Systems PVL Line [PDF]

open access: yes, 2012
In July 2010, Stark State College (SSC), received Grant DE-EE0003229 from the U.S. Department of Energy (DOE), Golden Field Office, for the development of the electrical and control systems, and mechanical commissioning of a unique 20kW scale high ...
Systems, Gregory Rush - Rolls-Royce Fuel Cell   +1 more
core   +1 more source

From junk to function — How weak selection in eukaryotes builds new parts and drives genomic complexity

open access: yesFEBS Letters, EarlyView.
How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley   +1 more source

Artificial molecular machines and motors—Design and control of nanoscale motion

open access: yesFEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source

PEM fuel cells for the power supply of electronic appliances

open access: yes, 2004
At the Fraunhofer Institute for Solar Energy Systems ISE we develop customized fuel cell systems based on hydrogen or methanol as fuel. This article describes some scientific approaches for the basic understanding of fuel cells we are taking in terms of ...
Hesselmann, Jan   +9 more
core   +2 more sources

Monitoring Wildfire Risk with a Near-Real-Time Live Fuel Moisture Content System: A Review and Roadmap for Operational Application in New Zealand

open access: yesRemote Sensing
Live fuel moisture content (LFMC) is a critical variable influencing wildfire behavior, ignition potential, and suppression difficulty, yet it remains challenging to monitor consistently across landscapes due to sparse field observations, rapid temporal ...
Michael S. Watt   +6 more
doaj   +1 more source

Cycle analysis of household SOFC combined heat and power system with internal steam reforming cells

open access: yesNihon Kikai Gakkai ronbunshu, 2014
In this paper, partial load efficiencies of three types of SOFC combined heat and power systems were calculated by cycle analysis. SOFC means Solid Oxide Fuel Cells.
Tatsuya MIZUSAWA   +5 more
doaj   +1 more source

Novel homogeneous burnable poisons in pressurized water reactor ceramic fuel

open access: yesNuclear Engineering and Technology, 2020
Due to excess reactivity, fresh nuclear fuel often contains burnable poisons. This research looks at six different burnable poisons and their impacts on reactivity, material attractiveness, and waste management.
Brandon Dodd   +4 more
doaj   +1 more source

Approaches to simulate destruction of a fuel rod with different fuel types

open access: yesJournal of Physics: Conference Series, 2020
Abstract Due to the revival of interest to the development of fast reactors cooled by liquid metals, the theoretical research for improving their safety is actual. A detailed calculation of all stages of an accident from the beginning to the end requires knowledge of the laws for modelling physical processes occurring in the reactor in ...
E V Usov   +3 more
openaire   +1 more source

Design of experiment study of the parameters that affect performance of three flow plate configurations of a proton exchange membrane fuel cell [PDF]

open access: yes, 2010
Low temperature hydrogen fuel cells are electrochemical devices which offer a promising alternative to traditional power sources. Fuel cells produce electricity with a reaction of the fuel (hydrogen) and air. Fuel cells have the advantage of being clean;
Olabi, Abdul-Ghani, Carton, James
core   +1 more source

Preliminary assessment of hazelnut shell biomass as a raw material for pellet production

open access: yes, 2023
We evaluated the use of hazelnut shell (HS) for pellet production. The investigation of chemical properties, such as the calorific value, low ash, nitrogen, sulfur and chlorine content as well as low heavy metal contents, reveals that the proposed ...
Muñoz, Robinson   +10 more
core   +1 more source

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