Results 31 to 40 of about 1,113,516 (233)
A presente entrevista foi realizada com o diretor moçambicano Sol de Carvalho (João Luís Sol de Carvalho), na cidade de Maputo, entre setembro de 2024 e março de 2025, e foi centrada nas suas vivências e experiências com a produção cinematográfica, o ...
Isaias Fuel
doaj +1 more source
A case study analysis of system efficiency, viability and energy values of SOFC based fuel cell Micro-CHP for office buildings [PDF]
The built environment is a large contributor to the greenhouse gas emissions. The first step in tackling environmental impact and fuel cost reduction is the minimization of energy losses through introduction of new and more efficient energy conversion ...
Mylona, A. +4 more
core +1 more source
PEM fuel cells for the power supply of electronic appliances
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
Prediction of fly-rock during boulder blasting on infrastructure slopes using CART technique
Boulder blasting is a different process from conventional bench blasting. Fly-rock produced in boulder blasting is a major safety concern due to the presence of 360° free-face which may result into excessive throw of the fragments radially up to 900 m ...
Narayan Kumar Bhagat +5 more
doaj +1 more source
Experimental Study on a 1000W Dead-End H2/O2 PEM Fuel Cell Stack with Cascade Type for Improving Fuel Utilization [PDF]
Proton exchange membrane fuel cells (PEMFCs) with a dead-ended anode and cathode can obtain high hydrogen and oxygen utilization by a comparatively simple system. Nevertheless, the accumulation of the water in the anode and cathode channels might cause a
Ebrahim Alizadeh +4 more
doaj +1 more source
The utilization of anion exchange membranes (AEMs) has revolutionized the field of electrochemical applications, particularly in water electrolysis and fuel cells. This review paper provides a comprehensive analysis of recent studies conducted on various
Wei Keat Ng +3 more
doaj +1 more source
The State of the Art in Fuel Cell Condition Monitoring and Maintenance [PDF]
Fuel cell vehicles are considered to be a viable solution to problems such as carbon emissions and fuel shortages for road transport. Proton Exchange Membrane (PEM) Fuel Cells are mainly used in this purpose because they can run at low temperatures and ...
Morris, Adrian +3 more
core +6 more sources
Passive alkaline–direct ethanol fuel cells (alkaline–DEFCs) appear to be suitable for producing sustainable energy for portable devices. However, ethanol crossover is a major challenge for passive alkaline–DEFC systems.
Z. Zakaria +2 more
doaj +1 more source
Fuel Consumption Tabulation in Laboratory Conditions [PDF]
Environmental degradation has come about for a number of factors including the use of fossil fuels in vehicles for everyday use. This paper attempts to understand the relationship between fuel consumption and various engine performance parameters under ...
Alghadi, M. +22 more
core +2 more sources
Mine disasters occur predominantly due to methane or coal dust explosion or a combination of both. Among the top ten worst coal mine disasters in India, nine are due to coal dust explosion. The current paper describes a general overview of the parameters
Santosh Kumar Ray +6 more
doaj +1 more source

