Results 11 to 20 of about 10,280,410 (290)

Use of Technological Diagnosis in Rail Vehicle Engines Maintenance

open access: yesLogi, 2021
The paper aims to classify the maintenance of internal combustion engines in 812 series diesel multiple units, to analyse operating failures, and to identify methods and procedures for determining their current mechanical condition.
Ondriga Jozef   +3 more
doaj   +1 more source

In-situ polymerized siloxane urea enhanced graphene-based super-fast, durable, all-weather elec-photo-thermal anti-/de-icing coating

open access: yesJournal of Science: Advanced Materials and Devices, 2023
Ice accumulation is a pervasive natural phenomenon that exerts a severe and catastrophic impact on a broad range of social systems. Previous investigations on anti-/de-icing techniques have primarily focused on mild laboratory conditions, which have ...
Jun Chen   +3 more
doaj   +1 more source

On Waviness and Two-Sided Surface Features in Thermal Elastohydrodynamically Lubricated Line Contacts

open access: yesLubricants, 2020
Machine components are designed to endure increasingly severe operating conditions due to the strive for improved energy efficiency of mechanical systems.
Tobias Hultqvist   +3 more
doaj   +1 more source

Lubricant film formation in rough surface non-conformal conjunctions subjected to GPa pressures and high slide-to-roll ratios

open access: yesScientific Reports, 2020
A ball-on-disc machine was employed in a highly idealised setting to study the interplay between oil film formation and surface irregularities in single-sided rough elasto-hydrodynamic lubricated (EHL) conjunctions.
Jonny Hansen   +2 more
doaj   +1 more source

A Stress-State-Dependent Thermo-Mechanical Wear Model for Micro-Scale Contacts

open access: yesLubricants, 2022
Wear is a complex phenomenon that depends on the properties of materials and their surfaces, as well as the operating conditions and the surrounding atmosphere.
Jamal Choudhry   +2 more
doaj   +1 more source

Uncovering elements of style [PDF]

open access: yes, 2011
This paper relates the style of 16th century Flemish paintings by Goossen van der Weyden (GvdW) to the style of preliminary sketches or underpaintings made prior to executing the painting.
Calderbank, Robert   +4 more
core   +1 more source

Applications of Modern Technologies in the Production of Aircraft Propeller Prototype

open access: yesCommunications, 2017
In the field of engineering relatively new designs and manufacturing processes are constantly emerging. These changes are often seen in designing and manufacturing of prototypes or in single part production.
Marek Bistak   +10 more
doaj   +1 more source

Readily Accessible M-Ferrocenyl-Phenyl Sulfonate as Novel Cathodic Electrolyte for Aqueous Organic Redox Flow Batteries

open access: yesBatteries, 2023
Ferrocene derivatives are amongst the most promising electroactive organic electrolytes. The bottleneck problems of their application in aqueous redox flow batteries are their poor solubility and lower potential as well as the complexity of the ...
Dawei Fang   +7 more
doaj   +1 more source

Elements of IPM for Dairy Cattle in New York State [PDF]

open access: yes, 2020
NYS IPM Type: Livestock IPM ElementsThis is a checklist of items to help you develop or analyze whether you use IPM for flies in your dairy operation. If the IPM practice listed below is used across the farm then check it off and give yourself the all ...
Waldron, Keith, Wise, Ken
core  

Exploratory Research on Radioisotope Thermoelectric Generators for Deep Space Missions

open access: yesE3S Web of Conferences, 2017
To support the development of a Radioisotope Power Source (RPS) for exploration missions into deep space based on 241Am, the European Commission’s Joint Research Centre (JRC) has recently launched an exploratory research project, scheduled for a period ...
Freis D.   +6 more
doaj   +1 more source

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