Results 11 to 20 of about 55,028 (261)

Modeling and Predicting the Machined Surface Roughness and Milling Power in Scot’s Pine Helical Milling Process

open access: yesMachines, 2022
Helical milling with the advantages of stable machining process, a well-machined surface quality, etc., is an interest of researchers and producers. Machined surface roughness (arithmetic mean deviation (Ra) and maximum height of the assessed profile (Rz)
Rongrong Li, Fan Yang, Xiaodong Wang
doaj   +1 more source

Quantifying foot deformation using finite helical angle [PDF]

open access: yesJournal of Biomechanics, 2015
Foot intrinsic motion originates from the combination of numerous joint motions giving this segment a high adaptive ability. Existing foot kinematic models are mostly focused on analyzing small scale foot bone to bone motions which require both complex experimental methodology and complex interpretative work to assess the global foot functionality ...
Pothrat, Claude   +5 more
openaire   +3 more sources

Signature of anisotropic exchange interaction revealed by vector-field control of the helical order in a FeGe thin plate

open access: yesPhysical Review Research, 2021
We investigated the low-temperature helical magnetic structures in a thin plate of chiral magnet FeGe, paying special attention to the variation of the magnetic modulation period with the angle of an applied magnetic field.
Victor Ukleev   +10 more
doaj   +1 more source

Transmission error in offset toothed double helical synchronous belt drives (in quasi-static condition)

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2020
Some studies have shown that offset toothed double helical synchronous belts (OTDHSB) have lower transmission noise and higher fatigue life than straight toothed synchronous belts (STSB).
Jianhua GUO   +4 more
doaj   +1 more source

The ten helical twist angles of B-DNA

open access: yesNucleic Acids Research, 1982
On the assumption that the twist angles between adjacent base-pairs in the DNA molecule are additive a linear system of 40 equations was derived from experimental measurements of the total twist angles for different pieces of DNA of known sequences.
Kabsch, W., Sander, C., Trifonov, E.
openaire   +4 more sources

The helix angle factor of helical gears.

open access: yesTRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C, 1986
This paper presents a study on the helix angle factor in considering the difference between root stresses of the helical gear and its virtual spur gear in the normal section. The calculation of bending strength of the helical gear is commonly based on the virtual spur gear.
Satoshi ODA, Takao KOIDE
openaire   +2 more sources

Analysis of the Torsion Angles between Helical Axes in Pairs of Helices in Protein Molecules

open access: yesМатематическая биология и биоинформатика, 2017
In this study, an analysis of distribution of the torsion angles Ω between helical axes in pairs of connected helices found in known proteins has been performed. The database for helical pairs was compiled using the Protein Data Bank taking into account the definite rules suggested earlier.
D.A. Tikhonov   +2 more
openaire   +3 more sources

Enhanced application limits for crossed helical gearboxes using new geometries for smaller sliding paths or smaller contact pressures [PDF]

open access: yesMATEC Web of Conferences, 2019
Crossed-axis helical gear units are used as actuators and auxiliary drives in large quantities in automotive applications such as window regulators, windscreen wipers and seat adjusters.
Boehme Christoph   +2 more
doaj   +1 more source

Spectra of Stretching Numbers and Helicity Angles in Dynamical Systems

open access: yesCELESTIAL MECHANICS AND DYNAMICAL ASTRONOMY, 1996
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Contopoulos, G., Voglis, N.
openaire   +2 more sources

Full Conjugate Contour Constructing of Helical Rotor with Higher and Its Flow Ripple Formula

open access: yesJixie chuandong, 2021
To efficiently realize lightweight and low flow pulsation performance for helical rotor pump. Firstly, a new helical rotor with only three lobes and a full conjugate contour for higher shape factor is presented, then, from taking dimensionless ...
Taixi Quan, Yan Yang
doaj  

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