Results 1 to 10 of about 55,028 (261)

Development of helical auxetic yarn with negative Poisson’s ratio by combinations of different materials and wrapping angle

open access: yesJournal of Industrial Textiles, 2022
Auxetic materials have negative Poisson ratio which has a multiple ranges of functional applications. The helical auxetic yarn was successfully developed through direct twist system by using core and wrap yarn or filament, which shows Auxeticity when the
Tehseen Ullah, Sheraz Ahmad, Yasir Nawab
doaj   +2 more sources

Research on Laser Precision Measurement of Helical Angle of Helical Cylindrical Gear

open access: yesJixie chuandong, 2020
A method and device for measuring helical angle of non-contact helical cylindrical gear based on laser displacement sensor is presented. According to the least square method, the collected points on the measured helical gear end section are fitted into a
Zi Hao   +4 more
doaj   +1 more source

Measuring Method for Helical Angle Parameter of Helical Gear based on Machine Vision

open access: yesJixie chuandong, 2020
In order to detect helical angle and other parameter quickly, the method of measuring standard helical gear is proposed based on machine vision. First of all, the overall structure and measurement process of the system are introduced.
Wei Shi, Yu Hou, Shifan Zhou, Qilang Liu
doaj   +1 more source

Helix Angle Effect on the Helical Gear Load Carrying Capacity

open access: yesWorld Journal of Engineering and Technology, 2018
The aim of this study is to investigate the helix angle effect on the helical gear load carrying capacity, including the bending and contact load carrying capacity. During the simulation, the transverse contact ratio is calculated with respect to the constant pressure angle.
Mehmet Bozca
exaly   +4 more sources

Funneled angle landscapes for helical proteins [PDF]

open access: yesJournal of Inorganic Biochemistry, 2020
We use crystallographic data for four helical iron proteins (cytochrome c-b562, cytochrome c', sperm whale myoglobin, human cytoglobin) to calculate radial and angular signatures as each unfolds from the native state stepwise though four unfolded states.
Kozak, John J.   +2 more
openaire   +3 more sources

Magic-angle helical trilayer graphene

open access: yesScience Advances, 2023
We propose magic-angle helical trilayer graphene (HTG), a helical structure featuring identical rotation angles between three consecutive layers of graphene, as a unique and experimentally accessible platform for realizing exotic correlated topological states of matter.
Trithep Devakul   +6 more
openaire   +4 more sources

Helix angle measurement method based on end face and side image processing of helical gear

open access: yesXi'an Gongcheng Daxue xuebao, 2021
The helix angle measurement of helical gear is difficult and the measurement process is complex. In order to improve the measurement accuracy and efficiency, the method of measuring helix angle of helical gear is proposed, by using two cameras to collect
Shuanjun SONG   +4 more
doaj   +1 more source

Analytical method for calculating scallop height of helical toroidal cutter in five-axis milling [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2020
This paper proposed a method to determine the path scallop of toroidal cutter in five-axis milling during a complex surface machining. A mathematical algorithm was developed by taking into consideration the impact of the helical angle and inclination ...
Hendriko Hendriko
doaj   +1 more source

Inner helical waveplate with angle-insensitive retardation

open access: yesOptics Express, 2021
The angle-sensitivity is a serious defect of birefringent waveplate, and it draws lots of interest from researchers. In this paper, an angle-insensitive waveplate with inner helix structure is proposed. The super-twisted nematic liquid crystal polymer is used to fabricate the inner helical waveplate, and the retardation-shift is measured and analyzed ...
Chi Zhang   +5 more
openaire   +2 more sources

Rotation angle of a helical dipole [PDF]

open access: yesProceedings of the 1999 Particle Accelerator Conference (Cat. No.99CH36366), 2003
With the collaboration between Brookhaven National Lab. (BNL) and RIKEN, the helical dipole magnets are under construction for the RHIC spin project. It is required that the beam deflection is negligible in the helical dipoles. The relation between the rotation angle in the helical dipole and the cancellation of the integral of transverse field along ...
T. Tominaka, M. Okamura, T. Katayama
openaire   +1 more source

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