Results 51 to 60 of about 1,383,987 (149)

Canal preparation with nickel-titanium or stainless steel instruments without the risk of instrument fracture: preliminary observations

open access: yesRestorative Dentistry & Endodontics, 2015
This report introduces a novel technique that allows a safe and predictable canal negotiation, creation of a glide path and canal preparation with reciprocating nickel-titanium or stainless steel engine-driven instruments in canals where the use of ...
Ghassan Yared
doaj   +1 more source

Reciprocating compressors : operation & maintenance /

open access: yes, 1996
For anyone responsible for purchasing, servicing, or operating reciprocating compressors, this book discusses the theory of operation and explains how to install, troubleshoot, overhaul, and repair all types of compressors.
Bloch, Heinz P., Hoefner, John J.
core  

Device for Converting Reciprocating into Rotary Motion.

open access: yes, 1882
Patent for a new and improved device for converting reciprocating into rotary motion. This design "has for its object to provide means whereby rotary motion may be converted into reciprocating motion or reciprocating motion into rotary motion without the
Richardson, John T.
core  

Endomotor integration, file kinematics impact on apical debris extrusion in severely curved canals

open access: yesEndodontology
Aim: This study aimed to quantify and compare the apically extruded debris during root canal instrumentation of severely curved canals using rotary and reciprocating file systems with integrated and nonintegrated endomotors.
Anshika Saxena, Vineeta Nikhil
doaj   +1 more source

A Heat Transfer Model Combining Differential and Integral Formulations for Thermal Analysis of Reciprocating Compressors [PDF]

open access: yes, 2012
Heat transfer in hermetic compressors is a complex phenomenon strongly affected by fluid flow inside and outside the compression chamber and by the efficiency of both the electrical motor and the crankshaft mechanism.
Deschamps, Cesar J., Sanvezzo Jr, Joel
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Modulation Signal Bispectrum Slice Overall Average Feature Extraction of Low-speed Reciprocating Bearing Faults

open access: yesJixie chuandong
Yaw bearings and slewing bearings in wind turbine systems, rotating support bearings in aerospace launch towers, and slew bearings in cranes and excavators all exhibit characteristics of low-speed reciprocating motion.
Zhang Hao   +3 more
doaj   +2 more sources

Influence of Viscous Effects on Mooring Buoy Motion

open access: yesJournal of Marine Science and Engineering
Field observations revealed that a mooring buoy rapidly drifts in a reciprocating motion along an arcuate path between two extreme positions. When the anchor point is considered the origin and viewed from an aerial perspective, this movement resembles a ...
Yunmiao Li   +3 more
doaj   +1 more source

Infuence of the type of reciprocating motion on the cyclic fatigue resistance of reciprocating fles in a dynamic model

open access: yes, 2021
Background: The aim of this study was to compare the infuence of two novel reciprocating movements on the cyclic fatigue resistance of endodontic reciprocating fles.
Zubizarreta Macho, Álvaro   +5 more
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Mechanism For Converting Reciprocating Into Rotary Motion.

open access: yes, 1913
Patent for an improvement to drive shafts used in automobiles, other motor vehicles, and machine tools that convert reciprocating into rotary motion, including instructions and ...
Smith, Robert W. J.
core  

A Valve Design Methodology For Improved Reciprocating Compressor Performance [PDF]

open access: yes, 2012
The current work directly relates valve dynamics to the compressor energy efficiency. Majority of the previous studies have focused on reducing pressure losses due to valve geometry, towards improved compressor performance.
Angadi, Shruti   +4 more
core  

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