Results 21 to 30 of about 114,321,802 (286)

Approach To The Numeric Geometry Analysis of Positive Displacement Compressors, Its Application To A Single Screw Compressor Simulation And Verification By Experiment [PDF]

, 2012
Thermodynamic models to simulate positive displacement compressors are well known for a few decades already and can describe the compressor performance quite well.
Ignatiev, Kirill Michailovich
core   +1 more source

Bending Vibration Analysis of Tensioned Ball Screw under Nonuniform Stress during the Cutting Process

Shock and Vibration, 2019
The bending vibration of tensioned ball screw under nonuniform stress in the cutting process is analyzed in this paper. Differential equation of a beam under nonuniform prestress is derived according to Euler–Bernoulli beam theory.
Cheng Zhang, Jianrun Zhang
doaj   +1 more source

Solid–liquid transport in a modified co-rotating twin-screw extruder-dynamic simulator and experimental validations [PDF]

, 2004
This work presents a dynamic transport model of a solid–liquid media through a twin-screw extruder (TSE). The application under consideration is the solid–liquid extraction of solute from raw plant substrate.
Prat, Laurent E., N'diaye, Senghane, Prat, Laurent, Gourdon, Christophe, Rigal, Luc   +4 more
core   +1 more source

A study on the use of the Osstell apparatus to evaluate pedicle screw stability: An in-vitro study using micro-CT. [PDF]

PLoS ONE, 2018
Pull-out force and insertion torque have not been generally used as intraoperative measures for the evaluation of pedicle screw stability because of their invasiveness.
Daisuke Nakashima, Ken Ishii, Morio Matsumoto, Masaya Nakamura, Takeo Nagura   +4 more
doaj   +1 more source

Comparative Pull-Out Performances of Cephalomedullary Nail with Screw and Helical Blade According to Femur Bone Densities

Applied Sciences, 2021
This paper mainly examines the fixation performances of the cephalomedullary nail for the incidence of intertrochanteric (IT) fracture to guide the appropriate fixations with respect to the bone density in terms of a biomechanical perspective.
Young-Chang Park, Dong-Sik Chae, Kyung-Yil Kang, Yao Ding, Sung-Jun Park, Jonghun Yoon   +5 more
doaj   +1 more source

Study of the influence of the oncoming flow of soil on the screw surface of a subsoiler

BIO Web of Conferences, 2020
Establishing optimal technological and design parameters of tillage tools is essential for ensuring tillage quality and lowest possible energy consumption by the tillage process.
Mukhametshin Ilshat, Valiev Ayrat, Aleshkin Alexey, Ibyatov Ravil, Muhamadyarov Farzutdin   +4 more
doaj   +1 more source

Anatomical and Biomechanical Stability of Single/Double Screw‐Cancellous Bone Fixations of Regan–Morry Type III Ulnar Coronoid Fractures in Adults: CT Measurement and Finite Element Analysis

Orthopaedic Surgery, 2023
Objective At present, it is still uncertain whether single screw has the same stability as double screws in the treatment of ulnar coronal process basal fracture (Regan–Morry type III).
Hao Ye, Yongchao Yang, Tingyang Xing, Guirong Tan, Shuxun Jin, Zhichao Zhao, Weikang Zhang, Yanyan Li, Lei Zhang, Jianshun Wang, Rongmei Zheng, Yun Lu, Lijun Wu   +12 more
doaj   +1 more source

What is the best position for coracoid fixation in the Latarjet procedure?

JSES International, 2022
Hypothesis: Multiple problems and complications associated with Latarjet fixation have been described; thus, this is the first study in the literature to identify the maximum allowed screw clamping force and best fixation screw position for Latarjet ...
Guilherme Augusto Stirma, MD, Leandro Massini Ribeiro, MD, Evandro Dias Gaio, Paulo Santoro Belangero, PhD, Eduardo Antonio de Figueiredo, PhD, Alberto de Castro Pochini, PhD, Carlos Vicente Andreoli, PhD, Benno Ejnisman, PhD   +7 more
doaj   +1 more source

Study on calculation method for dynamic load distribution of thread pair of planetary roller screw mechanism

Xibei Gongye Daxue Xuebao
To reveal the dynamic load distribution characteristics of planetary roller screw mechanism under the high-speed operating conditions, based on the spiral surface equation and deformation coordination relationship, a static contact force calculation ...
XU Qianjin, MA Shangjun, WU Linping, FU Xiaojun   +3 more
doaj   +1 more source

Axial force sensor for screw bolt using optical fiber grating for detection of strain

Nihon Kikai Gakkai ronbunshu, 2015
In this study, an axial force sensor was developed and evaluated for a screw bolt using optical fiber grating (FBG: fiber Bragg grating). This sensor has high tolerance to electromagnetic noise.
Hiromu IWATA, Minako KASHIWA, Yasuo MIZUTANI   +2 more
doaj   +1 more source