Results 1 to 10 of about 40,439 (164)
Dynamic torque and screw-in force of four different glide path instruments assessed in simulated single- and double-curved canals: An in vitro study [PDF]
Journal of Dental Sciences, 2023 Background/purpose: The glide path instruments are the introductory instruments into the canals; thus, they should be durable enough to withstand torsional stress/screw-in force.
Myint Thu +7 more
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Applied Sciences, 2019 This paper proposes an optimum design of the pedicle screw with respect to bone density and variables of the screw design. First, pedicle screws are designed and manufactured with design variables including the core diameter and conical angle that affect
Eun Sun Lee +6 more
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Screw-press gluing in timber construction – press force predictions and application limits
Results in EngineeringScrew-press gluing is a highly efficient and often the exclusive possibility to join components of ribbed wooden elements and for plate or strip type reinforcement of timber structures.
Simon Aicher, Aaron Münzer, Kai Simon
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Modelling forces in milling screw rotors
The International Journal of Advanced Manufacturing Technology, 2022 Abstract The deflections of screw rotors under machining forces cause mismatch between the male and female rotors and, consequently, accelerated wear and suboptimal efficiency in their performance. Optimizing the machining process to minimize the generated forces and accounting for the resulting mismatch in the design of the rotor profile ...
Xi Wang, Keivan Ahmadi
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Advances in Civil Engineering, 2023 This paper investigates the shear force capacity, stiffness, and effective length of the connection screws in timber-concrete composite structures. Ten samples (six hardwood and four softwood) were fabricated with the connection screws installed at ...
Mohd Amirul B. Mohd Snin +1 more
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Comparison of the Pullout Strength of Different Pedicle Screw Designs and Augmentation Techniques in an Osteoporotic Bone Model [PDF]
Asian Spine Journal, 2018 Study DesignMechanical study.PurposeTo compare the pullout strength of different screw designs and augmentation techniques in an osteoporotic bone model.Overview of LiteratureAdequate bone screw pullout strength is a common problem among osteoporotic ...
Gorkem Kiyak +3 more
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Applied Sciences, 2022 This study investigated the impact of a one-sided radial-landed cross-sectional design of a heat-treated nickel-titanium rotary instrument (JIZAI, MANI, Japan; JZ) on torque/force generation and canal-shaping ability, using an experimental non-landed ...
Taro Nakatsukasa +7 more
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Orthopaedic Journal of Sports Medicine, 2020 Background: Tibial-sided graft fixation is thought to be critical for the success of anterior cruciate ligament (ACL) reconstruction. Nevertheless, little is known about the graft force after fixation during the first 24 hours after surgery or the ...
Philipp Kruppa MD +7 more
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Acceleration-Dependent Analysis of Vertical Ball Screw Feed System without Counterweight
Chinese Journal of Mechanical Engineering, 2021 The distinguishing feature of a vertical ball screw feed system without counterweight is that the spindle system weight directly acts on the kinematic joints.
Cunfan Zou +5 more
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Design optimization and comparison of linear magnetic actuators under different topologies
Chinese Journal of Electrical Engineering, 2020 In this study, several types of linear actuators that adopt different permanent-magnet (PM) topologies are studied and compared. These linear actuators are based on the concept of PM magnetic screw transmission, which offers high force density, high ...
Zhijian Ling +3 more
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