Results 1 to 10 of about 2,431,600 (241)

Tensile and Fracture Characteristics of 304L Stainless Steel at Cryogenic Temperatures for Liquid Hydrogen Service

open access: yesMetals, 2023
As the urgency for carbon-neutral fuels grows in response to global warming and environmental pollution, liquid hydrogen, with its high energy density, emerges as a promising candidate.
Myung-Sung Kim   +3 more
doaj   +1 more source

Investigation of Failure Causes of Oil Pump Based on Operating Conditions

open access: yesApplied Sciences, 2023
Pumps, as core pieces of equipment in ships, are installed in the engine room to supply refined oil to the engine. Pump failure causes critical problems for ship operations.
Jong-Jik Lee   +7 more
doaj   +1 more source

Vacuum Suction Pad Design and Real-Scale Performance Evaluation of an Automatic Mooring System for the Establishment of a Smart Port in South Korea

open access: yesJournal of Marine Science and Engineering, 2023
A ship’s automatic mooring system relies on vacuum suction pads with rubber seals to withstand external loads, such as mooring forces. This paper focused on the design requirements and performance testing of vacuum suction pads to develop a high ...
Jaehyeon Ahn   +6 more
doaj   +1 more source

Simplified Vibration PSD Synthesis Method for MIL-STD-810

open access: yesApplied Sciences, 2020
In MIL-STD-810, the environmental engineering consideration and laboratory tests by US military, the DP (damage potential) formula is used to calculate the fatigue damage by vibration environments which is a simplified version of a FDS (fatigue damage ...
Jin Jang, Jong-Won Park
doaj   +1 more source

Investigation of friction coefficient to improve traction condition in R2R transport system

open access: yesAIP Advances, 2023
In a roll-to-roll (R2R) system, the roller’s traction force for precision transportation is crucial for the commercialization of printed electronic devices.
Woojoo Shin   +5 more
doaj   +1 more source

Mechanical Performance of Polymer Materials for Low-Temperature Applications

open access: yesApplied Sciences, 2022
The present study investigates the strain-rate-dependent mechanical performances of three different kinds of polymers in low-temperature applications, including plastic piping systems.
Yongjin Kim   +4 more
doaj   +1 more source

Monitoring the Conditions of Hydraulic Oil with Integrated Oil Sensors in Construction Equipment

open access: yesLubricants, 2022
Maintenance and reliability are crucial aspects for operating construction equipment in harsh environmental conditions. One of the methods used to improve the maintenance and reliability of construction equipment is oil diagnosis.
Sung-Ho Hong, Hong-Gyu Jeon
doaj   +1 more source

Pipe thinning model development for direct current potential drop data with machine learning approach

open access: yesNuclear Engineering and Technology, 2020
The accelerated corrosion by Flow Accelerated Corrosion (FAC) has caused unexpected rupture of piping, hindering the safety of nuclear power plants (NPPs) and sometimes causing personal injury.
Kyungha Ryu   +3 more
doaj   +1 more source

Numerical investigation on the hydraulic loss correlation of ring-type spacer grids

open access: yesNuclear Engineering and Technology, 2022
An accurate prediction of the pressure drop along the flow paths is crucial in the design of advanced passive systems cooled by heavy liquid metal coolants.
Kyung Ha Ryu   +7 more
doaj   +1 more source

Adaptive clustering algorithm based on improved marine predation algorithm and its application in bearing fault diagnosis

open access: yesElectronic Research Archive, 2023
In cluster analysis, determining the number of clusters is an important issue because there is less information about the most appropriate number of clusters in the real problem.
Zhuanzhe Zhao   +6 more
doaj   +1 more source

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