Results 1 to 10 of about 14,983 (246)

Laser Scanner-Based Hyperboloid Cooling Tower Geometry Inspection: Thickness and Deformation Mapping [PDF]

open access: yesSensors
Hyperboloid cooling towers are counted among the largest cast-in-place industrial structures. They are an essential element of cooling systems used in many power plants in service today. Their main structural component, a reinforced-concrete shell in the
Maria Makuch   +2 more
doaj   +2 more sources

Quantum particle on hyperboloid [PDF]

open access: yesClassical and Quantum Gravity, 2003
We present quantization of particle dynamics on one-sheet hyperboloid embedded in three dimensional Minkowski space. Taking account of all global symmetries enables unique quantization.
Bargman V   +9 more
core   +3 more sources

Non-Compact Hopf Maps and Fuzzy Ultra-Hyperboloids [PDF]

open access: green, 2012
Fuzzy hyperboloids naturally emerge in the geometries of D-branes, twistor theory, and higher spin theories. In this work, we perform a systematic study of higher dimensional fuzzy hyperboloids (ultra-hyperboloids) based on non-compact Hopf maps.
Hasebe, Kazuki
core   +2 more sources

Comparison of discharge mechanism of negative corona between hyperboloid and hemispherical electrodes

open access: goldAIP Advances, 2018
Electrostatic precipitators based on corona discharge are a research hotspot in recent years. It is of great significance to investigate the characteristics of corona discharge under different system parameters for improving the dust removal efficiency ...
B. X. Lu, J. J. Zhu
doaj   +2 more sources

Design of Hyperboloid Structures [PDF]

open access: bronzeJournal of Architectural Research and Development, 1970
In the research into helium  mass  spectrometer leakage detection, a method for linearizability investigation has been put forward recently. Meanwhile,  it  has  been demonstrated the rationality of the method through multiple tests based on the study in the principle of constant pumping speed of the mechanical pump in vacuum.
Sebahattin Bektaş
openalex   +3 more sources

Wind-induced loads and integrity assessment of hyperboloid reflector of solar pow

open access: goldAlexandria Engineering Journal, 2016
Flow-induced loads and Strouhal frequencies of secondary hyperboloid reflector which is located at top of the central tower of a proposed solar power plant are investigated.
M. Eswaran, R.K. Verma, G.R. Reddy
doaj   +2 more sources

Gaussian Curvature Effects on Graphene Quantum Dots [PDF]

open access: yesNanomaterials, 2022
In the last few years, much attention has been paid to the exotic properties that graphene nanostructures exhibit, especially those emerging upon deforming the material.
Sergio de-la-Huerta-Sainz   +2 more
doaj   +2 more sources

Continuous wavelet transform on the hyperboloid

open access: yesApplied and Computational Harmonic Analysis, 2007
The main advantages of the known continuous wavelet transforms (CWT) over the classical Fourier transform are its local and multiresolution nature, which provide the properties of a mathematical microscope. However, data analysis has undergone deep changes recently and the field faces new exciting challenges. A given feature shared by these problems is
Bogdanova, I.   +2 more
exaly   +4 more sources

Analytical expression for the exact curved surface area and volume of hyperboloid of two sheets via Mellin-Barnes type contour integration [PDF]

open access: yesJournal 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
doaj   +1 more source

The model of spatial analogous hyperboloid for three-dimensional rock strata movement in mining engineering

open access: yes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
doaj   +1 more source

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