Results 1 to 10 of about 34,568 (304)
An experimental study on the rotational accuracy of variable preload spindle-bearing system [PDF]
Advances in Mechanical Engineering, 2018 The rotational performance of the spindle-bearing system has critical influence upon the geometric shape and surface roughness of the machined parts. The effects of preload and preload method on the rotational performance of the spindle-bearing system is
Gaofeng Hu +6 more
doaj +2 more sources
Nicotine preloading for smoking cessation: the Preloading RCT [PDF]
Health Technology Assessment, 2018 BackgroundNicotine preloading means using nicotine replacement therapy prior to a quit date while smoking normally. The aim is to reduce the drive to smoke, thereby reducing cravings for smoking after quit day, which are the main cause of early relapse.
Paul Aveyard +40 more
openaire +11 more sources
Study on Preload Monitoring of Ball Screw Feed Drive System Using Natural Frequency Detection [PDF]
한국정밀공학회지, 2018 This paper investigates the relationship between the preload level of a ball screw drive and the detected natural frequency of the system in an axial direction.
Tung Lam Nguyen +3 more
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Performance Evaluation of a Variable Preload Spindle by Using Linear Actuator [PDF]
한국정밀공학회지, 2017 Bearings having a small clearance during normal operation are selected. In some cases, bearings having a negative clearance when mounted are selected, to generate internal stress which enables achieving various effects.
Dong-Hyeon Kim +3 more
doaj +1 more source
Investigation of the effect of preload on the mechanical properties of fiber-reinforced geopolymer concrete [PDF]
مهندسی عمران شریف, 2022 Concrete may be loaded at an early age for a variety of reasons. This loading can have negative and sometimes destructive effects on the hardened properties of concrete.
A. Sadr Momtazi, K. Gholipour, R. Kohani
doaj +1 more source
JAI (Jurnal Anestesiologi Indonesia), 2014 Latar belakang : Pemberian preload untuk mencegah hipotensi pada anestesi spinal dapat mempengaruhi keseimbangan cairan tubuh. Tujuan : Untuk melihat perbedaan elektrolit plasma dan tekanan darah antara preload RAM dibandingkan dengan RL.
Ifar Irianto Yudhowibowo +2 more
doaj +1 more source
Preload loss of CFRP bolted joint without rotation under transverse and axial loading
Advances in Mechanical Engineering, 2023 There are a large number of CFRP-steel bolted joints with jet nuts subjected to transverse and axial load in aircraft structures, which have passed standard testing of locking characteristics of fasteners under transverse loading conditions.
Haoran Yang +3 more
doaj +1 more source
Analysis of Preload of Three-Stator Ultrasonic Motor
Micromachines, 2021 The pre-pressure device of the ultrasonic motor plays a vital role in the design of the entire motor structure, the contact state of the stator and rotor of the motor, dynamic properties of the stator, friction and wear characteristics of the rotor; even
Zheng Li +4 more
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Metals, 2021 The influence of the working load on the dynamic loading of the bolt was investigated in our study for two cases of flange joints. The analytical calculation according to the Verein Deutscher Ingenieure (VDI) 2230 recommendation and the numerical ...
Ivan Okorn +3 more
doaj +1 more source
FISHER MATRIX PRELOADED — FISHER4CAST [PDF]
International Journal of Modern Physics D, 2011 The Fisher Matrix is the backbone of modern cosmological forecasting. We describe the Fisher4Cast software: A general-purpose, easy-to-use, Fisher Matrix framework. It is open source, rigorously designed and tested and includes a Graphical User Interface (GUI) with automated LATEX file creation capability and point-and-click Fisher ellipse generation.
Bassett, Bruce A. +3 more
openaire +2 more sources