Results 71 to 80 of about 16,005 (251)
Measuring Method for Helical Angle Parameter of Helical Gear based on Machine Vision
Jixie 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
Combined pressure regulator and shutoff valve [PDF]
, 1974 A remotely operable pressure regulator and shutoff valve particularly suited for achieving high resolution and flow control, and positive shutoff is described.
Koch, E. F.
core +1 more source
Mathematical model and characteristics analysis of crossed-axis helical gear drive with small angle based on curve contact element. [PDF]
Sci Prog, 2021 Liang D, Meng S, Tan R.
europepmc +1 more source
Goby gummies: A customizable and edible assay to quantify predation in aquatic ecosystems
Methods in Ecology and Evolution, EarlyView.Abstract Predation is a critical ecosystem process that shapes the structure and functioning of biological communities. However, due to its intermittent nature, fast pace and general unpredictability, predation is difficult to observe and quantify. Therefore, we commonly rely on indirect metrics or proxies of predation, which reflect the outcome of ...
Christopher R. Hemingson +2 more
wiley +1 more source
Topology of modified helical gears [PDF]
The topology of several types of modified surfaces of helical gears is proposed. The modified surfaces allow absorption of a linear or almost linear function of transmission errors.
Coy, J. J. +3 more
core +1 more source
Artificial Organs, EarlyView.This study aims to evaluate the potential of a multistage pump design to enhance hemocompatibility in left ventricular assist devices. We found that the two‐stage concept offers favorable hemolysis measures compared to single‐stage designs, as the reduction in peak shear stresses outweighs the disadvantage associated with prolonged residence time ...
Sarah Linnemeier +6 more
wiley +1 more source
Jixie chuandong, 2014 The double helical gear addendum modification is achieved by using parabola instead of part of straight line on rack cutter blade.Through a predesigned parabolic function of transmission errors and combined with the equation of the rack cutter blade,the ...
尚鹏, 李建华, 王三民
doaj
Understanding excessive sleep in people with psychotic disorders
British Journal of Clinical Psychology, EarlyView.Abstract Background There has been increasing attention to sleep disturbances such as insomnia in psychosis, due to its impact on symptoms, well‐being, and recovery. However, excessive sleep and extended sleep duration are common in psychosis (partly linked to sedating antipsychotic medication) and have been relatively neglected, despite plausible ...
Kate Robbins +2 more
wiley +1 more source
Research of the Variation of Meshing Force of the Plastic Helical Gear and Steel Worm
Jixie chuandong, 2018 In order to investigate the meshing force of the tooth surface of the plastic helical gear and the steel worm in the transmission process,the mechanical model of the meshing pair of plastic helical gear and steel worm is established by considering the ...
Yun Yonghu, Hu Hong, Ta Jingning
doaj
Electrical impedance observation for lubrication conditions of helical gears under actual operation
Nihon Kikai Gakkai ronbunshuIn this study, the effectiveness of the electrical impedance method (EIM) for monitoring lubrication conditions in helical gear systems during actual operation was investigated.
Hikaru OKUBO, Asuka WATANABE, Ken NAKANO
doaj +1 more source