Results 71 to 80 of about 72,742 (309)

Energy Efficiency Analysis and Decoupling Control Design of Air Supply for Vehicle Fuel Cell System

open access: yes
The reliability and efficiency of proton exchange membrane fuel cells largely depend on the performance of the air supply system, making high-control accuracy essential.
Wei, Zhongbao; orcid:   +7 more
core   +1 more source

Test diagnostics of engine systems in passenger cars [PDF]

open access: yesFME Transactions, 2020
One of the priority directions in the development of instrument diagnostics of car engines is test diagnostics. The main advantages of such testing are: significant coverage of the diagnosed engine systems; high informativeness and reliability of the ...
Gritsenko A.   +3 more
doaj  

The Evaluation System to Ensure the Transport of Emergency Supplies of Fuel to the Hospitals

open access: yesTransportation Research Procedia, 2019
Abstract Nowadays we can see an increase of emergency and crisis. One of these may be a power outage. However, this can also be a cascade effect because of the windshield. Hospitals are a critical infrastructure sector where it is essential to ensure a constant supply of electricity. At the time of the power outage aggregates are used for which it is
Víchová, Kateřina, Hromada, Martin
openaire   +2 more sources

Polarizable Vanadium Dipoles Promote Water Dissociation on Vanadium‐Based Metal Organic Framework

open access: yesAdvanced Functional Materials, EarlyView.
The polarization of unpaired V 3d electrons weakens the H─O bond to improve water dissociation by the dual Vδ+:O─H and Pλ−:H─O coupling hydrogen bonds formation and relaxation. P@V‐MOF electrocatalyst shows low overpotentials (94 mV in acid, 178 mV in neutral, and 77 mV in alkaline solutions) with excellent stability for effective overall water ...
Xinjuan Liu   +13 more
wiley   +1 more source

Numerical Analysis of a Fuel Pump for an Aircraft Diesel Engine

open access: yesMATEC Web of Conferences, 2019
The paper reports on the process of modelling a high-pressure common rail pump designed to supply a two-stroke compression-ignition engine, which includes the presentation of methodology for model construction and results of simulation tests.
Sochaczewski Rafał, Szlachetka Marcin
doaj   +1 more source

Data on the thermo-fluid simulation of open-cathode fuel cell stack depending on the location of the oxidizer/cooling supply system

open access: yesData in Brief, 2020
The content of this paper provides simulation data of the distribution of temperature fields, and oxidizer/cooling agent (air) flows in dependence with location of the oxidizer/cooling supply system in open-cathode polymer electrolyte membrane fuel cell (
Evgeny Anisimov   +2 more
doaj   +1 more source

Conversion Of Carbureted Fuel Supply Into Electronic Fuel Injection System

open access: yesİlköğretim Online, 2023
One of the most pressing issues confronting the automobile industry is the provision of the most recent technological advancements in this industry to an increasing number of people on a daily basis. Many experts from around the world are working on this issue.
openaire   +1 more source

Role of Intrinsic Electron Trapping in Negative Charging of Amorphous Alumina

open access: yesAdvanced Functional Materials, EarlyView.
Intrinsic electron trapping in amorphous Al2O3 is examined using hybrid‐DFT models spanning a wide density range. Both spontaneous and thermally activated trapping are identified, with pronounced spontaneous localization in dense, partly crystallized structures.
Jack W. Strand   +5 more
wiley   +1 more source

Liquid Phase Transmission Electron Microscopy: A Window into the Early Stages of Complex Material Formation

open access: yesAdvanced Functional Materials, EarlyView.
Liquid‐phase transmission electron microscopy enables direct observation of nucleation and growth processes in solution. This review is dedicated to the remembrance of Helmut Cölfen and highlights recent studies on complex materials—oxides, biominerals, organic–inorganic crystals—which were central to his research activity. It summarizes key milestones,
Charles Sidhoum   +5 more
wiley   +1 more source

Wood fuel markets in Northern Europe [PDF]

open access: yes, 2012
High fossil fuel prices and ambitions to reduce greenhouse gas emissions have increased demand for renewable energy and are changing wood fuel market structures.
Olsson, Olle
core  

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