Results 51 to 60 of about 479,276 (195)

Biomechanical Comparison of Fixation Stability among Various Pedicle Screw Geometries: Effects of Screw Outer/Inner Projection Shape and Thread Profile

Applied Sciences, 2021
The proper screw geometry and pilot-hole size remain controversial in current biomechanical studies. Variable results arise from differences in specimen anatomy and density, uncontrolled screw properties and mixed screw brands, in addition to the use of ...
Ming-Kai Hsieh, Yun-Da Li, Mu-Yi Liu, Chen-Xue Lin, Tsung-Ting Tsai, Po-Liang Lai, Ching-Lung Tai   +6 more
doaj   +1 more source

Comparison between Flow Velocity Profiles in Conical and Cylindrical Hydrocyclones

KONA Powder and Particle Journal, 2014
Both conical and cylindrical cyclones are used in the size classification and density separation of particles. Conical hydrocyclones have a more general use and have been thoroughly studied concerning both flow ...
Bruno Chiné, Gianfranco Ferrara
doaj   +1 more source

Experimental study of hydraulic characterization of transverse waves induced by vortex shedding in resonance

Ain Shams Engineering Journal, 2023
This study investigated the effect of obstacle shape on forming four modes of transverse waves in resonance. Cubic (flow collision to the vertex) and cylindrical obstacles were used for this purpose.
Kimiya Kamaei, Mehdi Ghomeshi, Seyed Mahmood Kashefipour, Mehdi Daryaee   +3 more
doaj   +1 more source

Long fluid filled bags suspended by line forces [PDF]

, 1975
A previous analysis of fluid filled storage bags is extended to the case of a long fluid filled cylindrical membrane supported by uniform line loads.
Duncan, J. L., Mullins, M. L.
core   +1 more source

Finite frequency external cloaking with complementary bianisotropic media

, 2013
We investigate the twofold functionality of a cylindrical shell consisting of a negatively refracting heterogeneous bianisotropic (NRHB) medium deduced from geometric transforms. The numerical simulations indicate that the shell enhances their scattering
Gralak, Boris, Guenneau, Sebastien, Liu, Yan, McPhedran, Ross. C.   +3 more
core   +3 more sources

Shaping electron wave functions in a carbon nanotube with a parallel magnetic field [PDF]

, 2018
A magnetic field, through its vector potential, usually causes measurable changes in the electron wave function only in the direction transverse to the field.
Andrew J. O. Whitehouse, Bhargava N., Conti-Ramsden G., Cruz J. A., David A. Copland, Efron B., Fenson L., Frankenburg W. K., Hall M. A., Hu X., James G. Scott, Katie L. McMahon, Kohavi R., Kotthoff L., Lebarton E. S., Liu S., Martyn Symons, Quinlan J. R., Rebecca Armstrong, Semel W., Squires J., Straker L., Wendy L. Arnott   +22 more
core   +3 more sources

QUALITY OF CYLINDRICAL SURFACES AT PROCESSING IN DRIVER MACHINE-TOOL ADAPTATIONS [PDF]

Научно-технический вестник Брянского государственного университета, 2018
In the article studies were conducted to determine the influence of the structural parameters of the drive devices on the accuracy and productivity of the treatment. At the same time, the accuracy of processing is understood as the deviation of the shape
Erokhin V.V.
doaj   +1 more source

Wavefront shaping for opaque cylindrical lenses

, 2016
22 pages, 5 ...
Di Battista, Diego, Zhang, Haisu, Ancora, Daniele, Lemonaki, Krystalia, Liapis, Evangelos, Tzortzakis, Stelios, Zacharakis, Giannis   +6 more
openaire   +2 more sources

弧齿圆柱齿轮两种加工方法工艺分析

Jixie chuandong, 2014
Taking the process of two kinds of processing methods as research object,the process characteristic and advantage and disadvantage of cylindrical gear with curvilinear shape tooth are contrasted and analyzed.Based on the processing principle,machining ...
常青林, 侯力, 孙志军, 李波, 严丽丽, 魏永峭   +5 more
doaj  

High precision and consistent machining of cylindrical rollers using ceramic lapping plates with both-sides machining method

Journal of Materials Research and Technology
To address the issue of rapid wear and loss of shape accuracy in traditional both-sides lapping plates, which limits the further application of both-sides machining for high-precision cylindrical rollers, an extremely high precision and consistent ...
Tianchen Zhao, Kaiping Feng, Luguang Guo, Binghai Lyu, Weifeng Yao, Junkai Ding, Julong Yuan   +6 more
doaj   +1 more source