نتایج جستجو برای: vibration answer

تعداد نتایج: 126020  

Journal: :Economics & Sociology 2020

Journal: :Theory and Practice of Logic Programming 2022

Abstract Logic Production System (LPS) is a logic-based framework for modelling reactive behaviour. Based on abductive logic programming, it combines rules with programs, database and causal theory that specifies transitions between the states of database. This paper proposes systematic mapping Kernel this (called KELPS) into an answer set program (ASP). For purpose new variant KELPS finite mod...

2013
WU Haocheng DAI Yongshou SUN Weifeng LI Ligang ZHANG Yanan

The effect of periodic vibration noise in wellsite is an important factor which impact analysis on three-dimensional drill string vibration signal. In order to obtain more accurate characters of three-dimensional drill string vibration signal that reflects the drilling tools condition, we conduct researches on the periodic vibration noise in the wellsite, independent component analysis algorith...

2016
Jing Zheng Jie Pan Hai Huang

Transformer tank vibration has been used for the condition monitoring and fault diagnosis of power transformers, as well as for the evaluation of radiated sound power from such power transformers. In both applications, seeking a correlation between transformer tank vibration and the vibration of the transformer windings and core becomes a challenge for fault identification and noise control at ...

2007
J. L. Cao S. John T. Molyneaux

Passive vibration shunt control using piezoelectric materials and an electrical network can remove vibration energy from structures. However, the vibration shunt control efficiency relies on the optimization of the vibration energy transfer between a structure and a Lead-Zirconate-Titanate piezoelectric ceramic material. We present an analytical study of a parallel resistor-inductor piezoelectr...

Journal: :Physiological reports 2015
Na Jin Seo Kishor Lakshminarayanan Leonardo Bonilha Abigail W Lauer Brian D Schmit

Random vibration applied to skin can change the sense of touch. Specifically, low amplitude white-noise vibration can improve fingertip touch perception. In fact, fingertip touch sensation can improve even when imperceptible random vibration is applied to other remote upper extremity areas such as wrist, dorsum of the hand, or forearm. As such, vibration can be used to manipulate sensory feedba...

Journal: :Eplasty 2016
Hiroaki Kuwahara Rei Ogawa

OBJECTIVE In general, needling and injection are painful procedures, especially when the face is the target. Although local anesthetics (cream or tape) can be used to reduce the pain, they are not sufficiently effective. It has been suggested that vibration can reduce pain. The aim of this case study was to determine whether application of a vibration device to an area adjacent to the facial ta...

Journal: :Ergonomics 2012
Bazil Basri Michael J Griffin

UNLABELLED This study determined how backrest inclination and the frequency and magnitude of vertical seat vibration influence vibration discomfort. Subjects experienced vertical seat vibration at frequencies in the range 2.5-25 Hz at vibration magnitudes in the range 0.016-2.0 ms(-2) r.m.s. Equivalent comfort contours were determined with five backrest conditions: no backrest, and with a stati...

Journal: :Occupational and environmental medicine 1994
M Bovenzi

OBJECTIVES To investigate the occurrence of disorders associated with the hand arm vibration syndrome in a large population of stone workers in Italy. The dose-response relation for vibration induced white finger (VWF) was also studied. METHODS The study population consisted of 570 quarry drillers and stonecarvers exposed to vibration and 258 control stone workers who performed only manual ac...

2009
j. condie

As a growing number of areas in the UK become ever more densely populated, increasing construction work is being undertaken and transportation networks built in order to cope with the growing population. The development of this infrastructure, coupled with the mechanisation of modern life, often results in exposure to various types of vibration from a range of sources such as rail, road traffic...

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