Results 131 to 140 of about 25,042,350 (333)

Numerical Simulation of Startup Performance in High-Power Diesel Engine Lubrication Systems Under High-Altitude and Cold Conditions

open access: yesLubricants
With the significant increase in the number of motor vehicles in plateau regions, the adaptability and reliability requirements of diesel engines operating under high-altitude and cold conditions have become increasingly critical.
Zhonghao Gao   +5 more
doaj   +1 more source

SUBSTANTIATION OF REQUIREMENTS FOR LUBRICANTS OF AUTOMATIC LUBRICATION SYSTEMS OF RAILS

open access: yesCollected scientific works of Ukrainian State University of Railway Transport, 2018
The article deals with the question of substantiation of requirements for lubricants for automatic lubrication of rails and crests of rolling stock wheels. The mechanism of two-layer placement of the surfaces of the contact between the rail and the wheel is proposed, with the application of automatic lubrication, which corresponds to the maximum of the
Panchenko, Serhii   +3 more
openaire   +3 more sources

Droplet Electricity Generators With Maximized Energy Collection Zone Enabled by Aloe‐Inspired Midrib and Cuticle

open access: yesAdvanced Materials, EarlyView.
An Aloe‐pinspired droplet electricity generator (A‐DEG) overcomes the limited energy collection zone of conventional DEGs by guiding impact droplets through a channeling midrib and artificial cuticle. The channeling midrib induces uni‐directional droplet spreading, while the artificial cuticle on the midrib further reinforces this behavior through its ...
Gibeom Lee   +8 more
wiley   +1 more source

THERMODYNAMIC ANALYSIS OF ROTARY CONTROL HEAD LUBRICATION AND COOLING SYSTEM

open access: yesJixie qiangdu, 2016
According to the requirements of the CBM special rotary control head lubrication and cooling system and combined with the existing mature rotary control head lubrication cooling technology,this paper designed a structure without cooling and lubricating ...
HU Gang   +5 more
doaj  

Influence of asperities on fluid and thermal flow in a fracture: a coupled Lattice Boltzmann study

open access: yes, 2013
The characteristics of the hydro-thermal flow which occurs when a cold fluid is injected into a hot fractured bedrock depend on the morphology of the fracture.
Flekkøy, Eirik Grude   +2 more
core   +3 more sources

Orbital Electrowetting: From Continuous Droplet Transport to Programmable Microfluidics

open access: yesAdvanced Materials, EarlyView.
This work comprehensively summarizes the mechanisms, recent advances, potential applications, and key challenges of orbital electrowetting. It highlights that integrating orbital electrowetting with conventional electrowetting is required to enable complete digital‐microfluidic workflows while simplifying platform architecture.
Jie Tan   +7 more
wiley   +1 more source

Liquid cryogenic lubricant [PDF]

open access: yes, 1970
Fluorinated polyethers are suitable lubricants for rolling-element bearings in cryogenic systems. Lubrication effectiveness is comparable to that of super-refined mineral oil lubricants operating at room ...
Dietrich, M. W.   +2 more
core   +1 more source

Exploring the Potential of Zero‐Dimensional Carbon Nanomaterials in Photoluminescent, Electrochemiluminescent and Electrochemical Sensors

open access: yesAdvanced Materials Interfaces, EarlyView.
Zero‐dimensional carbon nanomaterials are presented as multifunctional platforms linking structure, property, and sensing performance. Surface engineering and heteroatom doping modulate electron‐transfer and luminescent behavior, enabling electrochemical, photoluminescent, and electrochemiluminescent detection. Fundamental design principles, analytical
Gustavo Martins   +8 more
wiley   +1 more source

Research of Lubrication System of Wind Turbine Gearbox based on Flowmaster Software

open access: yesJixie chuandong, 2018
View of the shortcomings of the traditional lubrication system design,a design method based on Flowmaster software is put forward. Taking a certain type of wind turbine gearbox as an example,the power loss and the amount of oil supply are calculated,the ...
Zhao Xin   +4 more
doaj  

Numerical Simulation and Experimental Study on the Role of Jet Angle in Controlling the Flow of Transmission Gears

open access: yesLubricants
Gears play an important role in modern machinery and are indispensable transmission components, particularly at high speeds, where lubrication is essential for the reliability and efficiency of the gear unit.
Tiangang Zou   +5 more
doaj   +1 more source

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