Results 11 to 20 of about 114,321,802 (286)
Finite element modelling of screw fixation in augmented and non-augmented cancellous bone [PDF]
, 2012 This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.This research project presents a study of the fixation of screws in augmented and non-augmented cancellous bone at a microscopic scale. It is estimated that
Bennani Kamane, Philippe
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Numerical analysis of the hydrodynamic behaviour of immiscible metallic alloys in twin-screw rheomixing process [PDF]
, 2006 A numerical analysis by a VOF method is presented for studying the hydrodynamic mechanisms of the rheomixing process by a twin-screw extruder (TSE). The simplified flow field is established based on a systematic analysis of flow features of immiscible ...
Tang, H, Wrobel, L C, Fan, Z
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Orthopaedic Surgery, 2020 Objective This study aimed to investigate the strength of a novel micro‐dynamic pedicle screw by comparing it to the traditional pedicle screw. Methods Forty‐five lumbar vertebrae received a traditional pedicle screw on one side and a micro‐dynamic ...
Lei Qian +6 more
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BMC Musculoskeletal Disorders, 2022 Background Pedicle screw placement in patients with osteoporosis is a serious clinical challenge. The bone mineral density (BMD) of the screw trajectory has been positively correlated with the screw pull-out force, while the computer tomography (CT ...
Jia Bin Liu +5 more
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Contact Forces in a Screw Feeding Process [PDF]
Advances in Materials Science and Engineering, 2018 The contact force between particles is analysed in this paper. Firstly, theoretical analysis is carried out based on the Hertz–Mindlin (no slip) model. Secondly, the normal force and tangential force are, respectively, simulated in single/double‐flight screw feeders with the discharging device at three rotating speeds (60 rpm, 90 rpm, and 120 rpm ...
Yunfei Shi +3 more
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Unbalanced magnetic pull in angular eccentricity magnetic screw
Electronics Letters, 2023 This paper investigates the unbalanced magnetic force (UMF) produced by angular eccentricity in a magnetic screw. The principle of eccentricity is briefly outlined and an analytical expression that can be used to predict UMF of a magnetic screw is ...
Zhengmeng Liu +3 more
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Design and analysis of magnetic matrix screw based on green manufacturing concept [PDF]
E3S Web of Conferences, 2021 Lead screws are the most commonly used transmission components in tool machinery and precision machinery, and are widely used in various industrial equipment and precision instruments.
Lilin, Wangbo, Quanxiaofeng
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Replication of mixing achieved in large co-rotating screw extruder using a novel laboratory 10-100g minimixer [PDF]
, 2008 YesWhen compounding polymers with additives to develop materials at specifications (colouring plastics is the simplest example), the difficulties is in getting the formulation right the first time.
Benkreira, Hadj +3 more
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Study of the dynamic behavior of a spool with a modernized drive [PDF]
Научно-технический вестник Брянского государственного университета, 2022 This article discusses the dynamic behavior of a spool plunger with a modernized drive. Modernization of the drive consists in replacing the electromagnet with a stepper motor with the transformation of rotational motion, — with the help of a screw pair,
Svoykin A.O., Кrauinsh P.Ya.
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An approximate model for cancellous bone screw fixation [PDF]
, 2013 This is the author's accepted manuscript. The final published article is available from the link below. Copyright @ 2013 Taylor & Francis.This paper presents a finite element (FE) model to identify parameters that affect the performance of an improved ...
Brown, CJ +9 more
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