Results 11 to 20 of about 15,120 (245)
Framework for X-ray mirror surface shape fitting. [PDF]
J Synchrotron RadiatThe closed‐form expressions for elliptic cylinders, hyperbolic cylinders, ellipsoids, hyperboloids, and diaboloids used for X‐ray mirror surface shapes are summarized. Additionally, a four‐layer framework to fit the measured surface shape data in slope or height for convenient X‐ray mirror surface characterization is proposed.For accurate ...
Huang L +9 more
europepmc +2 more sources
Analytical expression for the exact curved surface area and volume of hyperboloid of two sheets via Mellin-Barnes type contour integration [PDF]
Journal of Mahani Mathematical Research, 2023 In this article, we aim at obtaining the analytical expression (not previously found and recorded in the literature) for the exact curved surface area of a hyperboloid of two sheets in terms of Appell's double hypergeometric function of second kind and ...
M.A. Pathan, M. Qureshi, Javid Majid
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Biodegradable Adhesive Systems for Bio-Integrated Applications. [PDF]
Adv Sci (Weinh)Biodegradable adhesives provide temporary yet reliable adhesion while degrading into safe, non‐toxic by‐products under physiological or environmental conditions. This review summarizes recent developments in physical and chemical adhesion mechanisms—including hydrogen bonding, catechol chemistry, amine‐carboxyl coupling, and emerging diazirine and urea
Han WB +6 more
europepmc +2 more sources
矿业科学学报, 2023 Based on a large number of field investigations and the analysis of the "analogous hyperbolic" overall movement model proposed by the author, this paper further extends it to three-dimensional space, and proposes a full-space "analogous hyperboloid"three-
Zuo Jianping +5 more
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Determination of coordinates of the earthquake hypocenter by the method of circles
Вестник Дагестанского государственного технического университета: Технические науки, 2021 Objective. The aim of the study is to develop a method for determining the coordinates of the earthquake hypocenter using various combinations of second and fourth order figures as a geo-locus of the hypocenter position points.Method.
G. K. Aslanov, T. G. Aslanov
doaj +1 more source
Вестник Дагестанского государственного технического университета: Технические науки, 2022 Objective. The aim of the study is to develop methods for determining the coordinates of the hypocenter of an earthquake with a known structure of the earth's crust. Method.
T. G. Aslanov, Yu. A. Sidorkina
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Quadratic Hyperboloids in Minkowski Geometries
Mediterranean Journal of Mathematics, 2022 AbstractA Minkowski plane is Euclidean if and only if at least one hyperbola is a quadric. We discuss the higher dimensional consequences too.
Árpád Kurusa, József Kozma
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Methods of Designing Gear’s Machining Tools with the Hyperboloid Cutting Part
Journal of Mechanical Engineering, 2020 The technique of obtaining a hyperboloidal gear engagement with linear contact between a cylindrical involute wheel and a hyperboloid producing worm is considered.
Boris Vorontsov +6 more
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Вестник Дагестанского государственного технического университета: Технические науки, 2020 Objectives. To study the dependencies obtained when determining the coordinates of an earthquake hypocentre using the figures of fourth and second orders.Method.
B. I. Shakhtarin +2 more
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Two particle Quantummechanics in 2+1 Gravity using Non Commuting Coordinates [PDF]
, 1997 We find that the momentum conjugate to the relative distance between two gravitating particles in their center of mass frame is a hyperbolic angle. This fact strongly suggests that momentum space should be taken to be a hyperboloid.
't Hooft G +14 more
core +2 more sources