Results 251 to 260 of about 7,166,002 (313)

The evolution of nanopore measurements: from biological out-of-plane pores to plastic in-plane pores.

Lab Chip
Akabirov K, Nguyen H, Peli Thanthri S, M Barros S, Chibuike M, Park S, Soper SA.   +6 more
europepmc   +1 more source

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Curvature interference characteristic of conical surface enveloping conical worm

Forschung im Ingenieurwesen, 2017
The theory to distinguish whether the curvature interference happens or not is well established for the enveloping conical worm. Some important results, such as the meshing function, the equation of the enveloping conical worm helicoid, and the curvature interference limit function, are all obtained.
Yaping Zhao, Qingxiang Meng
openaire   +2 more sources

Meshing limit line of the conical surface enveloping conical worm pair

Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2019
In this study, the calculating principle of the meshing limit line of the conical surface enveloping conical worm pair is put forward systematically. The tooth face equations, the meshing function and the meshing limit function of a conical worm pair are all acquired.
Qingxiang Meng, Yaping Zhao, Zaiyou Yang
openaire   +2 more sources

Simulation investigation of the spontaneous motion behaviors of underwater oil droplets on a conical surface.

Soft Matter, 2022
A conical surface can realize the spontaneous transportation of micro-sized oil droplets in an aqueous environment without energy input, exhibiting great potential for applications in microfluidics, chemical micro-reactors, water remediation, etc ...
Chao-Tai Chen, Jian Liu, Yangkai Liu, Xuqiao Peng   +3 more
semanticscholar   +1 more source

COMBINED EXTRUSION OF GLASSES WITH A CONICAL BOTTOM. KINEMATIC AND STRESS STATES OF THE PLASTIC REGION LOCATED UNDER THE CONICAL SURFACE OF THE PUNCH

Spravochnik Inzhenernyi zhurnal, 2021
For extrusion of glasses with a conical bottom using the method of plastic flow by A. L. Vorontsov, the kinematic and stress states of the extruded metal in the area of the plastic deformation center located under the conical surface of the punch were ...
A. Vorontsov, D. Lebedeva
semanticscholar   +1 more source

COMBINED EXTRUSION OF GLASSES WITH A CONICAL BOTTOM. KINEMATIC AND STRESS STATES OF THE PLASTIC REGION IN CONTACT WITH THE CONICAL SURFACE OF THE MATRIX

Spravochnik Inzhenernyi zhurnal, 2021
For the extrusion of glasses with a conical bottom using the method of plastic flow by A. L. Vorontsov, the kinematic and stress states of the extruded metal in the area of the plastic deformation zone in contact with the conical surface of the matrix ...
A. Vorontsov, D. Lebedeva
semanticscholar   +1 more source

Application of GDQ method to large amplitude response of FGM joined spherical-conical shells under rapid surface heating

Mechanics based design of structures and machines, 2023
Geometrically non-linear thermally induced vibrations of functionally graded material (FGM) joined spherical-conical shells are analyzed in the current research.
H. Bagheri, Y. Kiani, M. Eslami
semanticscholar   +1 more source

Coupled Bionic Drag-Reducing Surface Covered by Conical Protrusions and Elastic Layer Inspired from Pufferfish Skin.

ACS Applied Materials and Interfaces, 2022
Inspired by the drag-reducing properties of the cone-like spines and elastic layer covering the pufferfish skin, important efforts are underway to establish rational multiple drag-reducing strategies for the development of new marine engineering ...
Xiaoming Feng, Dongliang Fan, Guizhong Tian, Yaosheng Zhang   +3 more
semanticscholar   +1 more source

Meshing theory and error sensitivity of mismatched conical surface enveloping conical worm pair

, 2020
The point-contact meshing theory is well established for a mismatched conical surface enveloping conical worm pair. The contact equations with nine unknowns are established to ascertain the momentary contact points.
Qingxiang Meng, Yaping Zhao, Zaiyou Yang, Jian Cui   +3 more
semanticscholar   +1 more source

Tilted conic fitting to an off-axis conic surface

Applied Optics, 1991
A better fitting to an off-axis conic section can be obtained if a tilted conic is used. The mathematical equation for the tilting angle is obtained as well as the influence over some of the aberration coefficients.
O, Cardona-Nunez, A, Cornejo-Rodriguez
openaire   +2 more sources