Results 31 to 40 of about 9,909,772 (235)

Effective indenter radius and frame compliance in instrumented indentation testing using a spherical indenter [PDF]

, 2009
We introduce a novel method to correct for imperfect indenter geometry and frame compliance in instrumented indentation testing with a spherical indenter.
Kang, Ingeun, Kang, Seung-Kyun, Kim, Ju-Young, Kwon, Dongil   +3 more
core   +1 more source

Tooth-root-stress evaluation for plastic gears considering effect of contact ratio under load

Journal of Advanced Mechanical Design, Systems, and Manufacturing
In a plastic gear pair, the low rigidity of plastics can lead to a higher actual contact ratio due to tooth deflection under load compared to the geometrical one. This phenomenon contributes to a decrease in tooth root stress.
Ichiro MORIWAKI, Akio UEDA, Takao KOIDE
doaj   +1 more source

Minimum mass ratio of contact binary stars

, 2022
Mass ratio $q$ of a contact binary star evolves due to mass transfer, magnetic braking, and thermal relaxation oscillations to small values until it crosses a critical threshold $q_\text{min}$. When that happens, the binary undergoes the tidal Darwin instability leading to a rapid coalescence of the components and observable brightening of the system ...
Pešta, Milan, Ondřej Pejcha
openaire   +1 more source

On the properties of contact binary stars

, 2004
A catalogue of light curve solutions of contact binary stars has been compiled. It contains the results of 159 light curve solutions. Properties of contact binary stars were studied by using the catalogue data. As it is well known since Lucy's (1968a,b)
Binnendijk, Bradstreet, Flower, Kalimeris, Kuiper, Kähler, Kähler, Kähler, Kähler, Kähler, Liu, Lucy, Lucy, Lucy, Maceroni, Maceroni, Mochnacki, P. Klagyivik, Pribulla, Rucinski, Sz. Csizmadia, Vinkó, Webbink   +22 more
core   +1 more source

Orion Routing Protocol for Delay-Tolerant Networks [PDF]

, 2011
In this paper, we address the problem of efficient routing in delay tolerant network. We propose a new routing protocol dubbed as ORION. In ORION, only a single copy of a data packet is kept in the network and transmitted, contact by contact, towards the
Ahmed, Toufik, Medjiah, Samir
core   +8 more sources

Determination of a representative food mass-to-surface area ratio (mF/A) for estimating migration values of food contact substances in single use food contact articles marketed in the United States

Frontiers in Food Science and Technology
When reviewing the safety of food packaging, safety assessors must determine the migration levels of a food contact substance (FCS) from the packaging into the contained food products.
Lauren M. Zhovmer, Andres M. GonzalezBonet, Madhur Garg, Allan B. Bailey, Kirk B. Arvidson   +4 more
doaj   +1 more source

Load sharing model for high contact ratio spur gears with long profile modifications

Forschung im Ingenieurwesen, 2019
The start of contact between loaded involute gear teeth occurs before reaching the theoretical inner point of contact due to the load-induced deflections of previous tooth pairs in contact.
J. I. Pedrero, M. Pleguezuelos, Miryam B. Sánchez   +2 more
semanticscholar   +1 more source

Nonlinear repulsive force between two solids with axial symmetry [PDF]

, 2011
We modify the formulation of Hertz contact theory between two elastic half-solids with axial symmetry and show that these modifications to Hertz’s original framework allow the development of force laws of the form F∝z^n, 10 to describe any aspect ratio ...
Daraio, Chiara, Sen, Surajit, Sun, Diankang   +2 more
core   +1 more source

CCD Photometry of Low Mass Ratio Contact Binary FP Boo - IV [PDF]

Journal of Astronomy and Space Sciences, 2009
We present new B, V, and R CCD photometric light curves for the low mass ratio contact binary FP Boo. A new photometric solution and absolute physical dimensions of the system were derived by applying the Wilson-Devinney program to our observed light ...
Kyu-Dong Oh, Woo-Baik Lee
doaj   +1 more source

Development of contact detection method between tool cutting edge and workpiece (Influence of contact state onto vibration characteristics and contact detection during milling operation)

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2023
The contact between a tool and workpiece during machining has a significant effect on the vibration characteristics of machine tools. This study proposes a method for detecting contact between a tool and workpiece, and demonstrates applications of the ...
Yu IGARASHI, Ryuta SATO, Keiichi SHIRASE
doaj   +1 more source