Results 21 to 30 of about 36,054 (295)

Influence of the type of reciprocating motion on the cyclic fatigue resistance of reciprocating files in a dynamic model

open access: yesBMC Oral Health, 2021
Background The aim of this study was to compare the influence of two novel reciprocating movements on the cyclic fatigue resistance of endodontic reciprocating files. Methods 30 Procodile® (Komet Medical, Lemgo, Germany) files were selected in this study
Álvaro Zubizarreta-Macho   +5 more
doaj   +1 more source

Analysis of mechanical properties of sand shale mixture under reciprocating shear

open access: yesShuili Shuiyun Gongcheng Xuebao, 2021
The mechanical properties of soil under reciprocating shear are of great significance to the study of cyclic load response. By improving the reciprocating shear direct shear instrument, 4 normal stresses are set for 32 cycles of shear.
WU Xiao
doaj   +1 more source

A Study on Sliding Surface Pressure Measurement of Piston Ring under Reciprocating Condition Using Thin-Film Sensor

open access: yesTribology Online, 2019
In the tribology of mechanical elements using lubricating oil, verification of the dynamic surface pressure distribution during sliding operation is necessary in order to elucidate the sliding condition.
Kazuya Mochizuki   +3 more
doaj   +1 more source

New Designs of Magnetic Fluid Seals for Reciprocating Motion

open access: yesPolish Maritime Research, 2022
The operating conditions of magnetic fluid seals during reciprocating motion are so different from those observed in rotating motion that the use of their conventional structures for reciprocating motion seals yields no good results.
Matuszewski Leszek, Bela Piotr
doaj   +1 more source

A Simplified CFD Model for Simulation of the Suction Process Of Reciprocating Compressors [PDF]

open access: yes, 2012
The suction process in reciprocating compressors is strongly affected by the valve dynamics and the pulsating flow throughout the suction muffler. This paper describes a simplified computational fluid dynamics (CFD) model to simulate the flow through the
Deschamps, Cesar J.   +3 more
core   +1 more source

Assessment of shaping ability of rotary and reciprocating file systems using cone-beam computed tomography in mandibular molars: An in vitro study

open access: yesEndodontology, 2019
Aim: The purpose of this study was to compare the canal transportation, centering ability, canal curvature, dentin removal, the volume of the curved root canals, and time taken during and after instrumentation with Wave One, Reciproc, F360, and One shape
Anju Abraham   +5 more
doaj   +1 more source

Simulation model “free-piston engine – electromechatronic converter on the basis of an electrical generator reciprocating”

open access: yesВесці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук, 2020
The analysis of the state and prospects of development of autonomous electric power sources with electric reciprocating motion generators has shown that at present, low-power systems “free-piston engine – electromechanotron сonverter based on an electric
A. B. Menzhinsky, A. N. Malashin
doaj   +1 more source

Development of an In-Cylinder Heat Transfer Correlation for Reciprocating Compressors [PDF]

open access: yes, 2012
The gas superheating that takes place throughout the suction system and inside the cylinder of reciprocating compressors adversely affects their overall efficiency.
Deschamps, Cesar J.   +2 more
core   +1 more source

Fault Classification of Reciprocating Compressor Based on Neural Networks and Support Vector Machines [PDF]

open access: yes
Reciprocating compressors play a major part in many industrial systems and faults occurring in them can degrade performance, consume additional energy, cause severe damage to the machine and possibly even system shut-down.
Gu, Fengshou   +4 more
core   +4 more sources

Influence of reciprocating friction on friction and wear characteristics of MoS2 films

open access: yesResults in Engineering, 2023
Molybdenum disulfide has the characteristics of reducing friction and wear resistance and is often used as a solid lubricant in spacecraft. Due to the particularity of space missions, part of the rotating structure needs to perform reciprocating motion ...
Shaojiang Dong, Weilun Cheng, Jinbao Yao
doaj   +1 more source

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