Introduction: The purpose of this study was to compare the accuracy of the torque wrenches used in different dental implant systems. Methods: We evaluated 42 torque wrenches used in different dental clinics in Mashhad, Iran, using a digital torque meter (Mark 10). High (25, 30 and 35 N·cm) and low (15 N·cm) levels of torque were examined. Ten tests were performed on each wrench, and the mean va...

Flux switching machine (FSM) offer advantages such as rotor robustness and simple driving circuit compared to competing machine. This paper attempts process the torque, volume current information from 35 latest Permanent Magnet (PM) FSM publication into a standardized Torque Performance Indicator (TPI), which are torque density, constant, constant density torque-magnet ratio. The distribution m...

has reduced stress concentrations in the ABSTRACT crown. However, because the torque is transferred through the abutment screw to the abutObjectives: The abutment connection with ment contact, changing the torque has greater the crown is fundamental to the structural effect on this hex system than the masticatory stabil ity of the implant system and to the preforce. Overall the masticatory forc...

This paper presents a systematic approach of optimal design and control of a surface-mount, permanent-magnet synchronous torque motor for the next-generation machine tools. A step-by-step procedure of optimization integrates multiple performance objectives and constraints to help the designer make the best decision on the final motor geometry from both design and control perspectives. In the pe...

This paper presents the method of modeling the torquc generated by a variable reluctance spherical motor W S M ) that presents some attractive possibilities by combining pitch, roll, and yaw motion in a single joint. Unlike prior works on the torque formulation of a VRSM, which were based on a lumpedparameter approach using equivalent magnetic circuits (widely ised in developing forceitorque mo...

This paper explores discontinuous time synchronous averaging (DTSA) as a means for minimizing torque and related nonstationary effects on the frequency content of transmission vibration signals. Unlike conventional time synchronous averaging (TSA), DTSA averages only data for revolutions that occur in regions of a predefined state space. Using this approach, flight vibration data from the Ames ...

This paper provides an investigation into the in uence of wake and skew on a ship propeller performance, based on the potential Boundary Element Method (BEM). Two types of in ow wake from a ship (i.e. Seiun-Maru and MS689) have been investigated for two propeller types; a Conventional Propeller (CP) and a Highly Skewed Propeller (HSP). The computed results include pressure distribution, open wa...