Results 1 to 10 of about 3,830 (267)
Design and Analysis of Novel Non-Involute Cylindrical Gears with a Curved Path of Contact
Mathematics, 2022 In this paper, novel non-involute cylindrical gears are designed based on a curved path of contact. Firstly, a parabolic curve is predesigned as the contact path of novel gears.
Chao Jia, Hui Dong
exaly +3 more sources
Gear involute artifacts with sub-micron profile form deviations: manufacture and new design [PDF]
Metrology and Measurement Systems, 2023 Gear involute artifact (GIA) is a kind of calibration standard used for traceability of involute metrology. To machine GIAs with sub-micron profile form deviations, the effect on the involute profile deviations caused by the geometric deviations and 6 ...
Ming Ling +5 more
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Postnatal Involution and Counter-Involution of the Thymus [PDF]
Frontiers in Immunology, 2020 Thymus involution occurs in all vertebrates. It is thought to impact on immune responses in the aged, and in other clinical circumstances such as bone marrow transplantation. Determinants of thymus growth and size are beginning to be identified.
Jennifer E. Cowan +3 more
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Involutes of Pseudo-Null Curves in Lorentz–Minkowski 3-Space
Mathematics, 2021 In this paper, we analyze involutes of pseudo-null curves in Lorentz–Minkowski 3-space. Pseudo-null curves are spacelike curves with null principal normals, and their involutes can be defined analogously as for the Euclidean curves, but they exhibit ...
Rafael López +3 more
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An Approach For Forming Spur Gear Tooth Profile [PDF]
Engineering and Technology Journal, 2008 Due to high working speed requirement in industry of rotating components, geardesign development become quite noticeable and rapid in the vicinity of engineeringparameters which become to have a large effect on its performance.
Safaa H. Abdulrahman, Adnan D. Mohammed
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Proceedings Mathematical Sciences, 2003 13 pages, no figures, no ...
Bayer-Fluckiger, E. +2 more
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A Statistic on Involutions [PDF]
Journal of Algebraic Combinatorics, 2001 Given positive integers \(i< j\), the authors define an arc \([i, j]\) with span \(j-i-1\). An involution is a finite set of disjoint arcs. If \(i< k< j< l\), then \([i, j]\), \([k, l]\) are crossing arcs. \(I(n)\) denote the set of all involutions with arcs contained in \([n]\) (\(=\{1,2,\dots,n\}\)) and \(I(n, k)\) the set of involutions in \(I(n ...
DEODHAR, RS, SRINIVASAN, MK
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Quaternion involutions and anti-involutions
Computers & Mathematics with Applications, 2007 The authors recall the definition of Hamilton's algebra of real quaternions. They define an involution of an algebra, without mentioning the structure where the involution takes place, and remark that the formal definition of an involution is not easy to find. Then an anti-involution is defined. Some calculations are added.
Todd A. Ell, Stephen J. Sangwine
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Explores for the source of the gears in traditional Japanese clock (Wadokei)
Nihon Kikai Gakkai ronbunshu, 2017 The purpose of this study is to understand the nature of one of the oldest gears used in traditional Japanese clock. Today's gear manufacturing technology in Japan came mostly from Europe and America, but we do not know exactly, when and how the ...
Akio UEDA +4 more
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Normal vector based generation of straight bevel gears tooth surfaces
上海师范大学学报. 自然科学版, 2017 Tooth surface generation and design of bevel gears is a challenging and multi-choice problem.A normal vector based method is established to describe the geometries of tooth surfaces of straight bevel gears.The normal vector of the tooth surfaces is ...
Lin Jing
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