Results 21 to 30 of about 1,159,056 (280)

Algorithms for fitting cylindrical objects to sparse range point clouds for rapid workspace modeling [PDF]

open access: yes, 2003
Current methods for construction site modeling employ large, expensive laser range scanners that produce dense range point clouds of a scene from different perspectives.
Bosché, Frédéric   +3 more
core   +1 more source

Methane-air explosion pressures in cylindrical interconnected containers with different dimensions

open access: yesEmergency Management Science and Technology, 2022
The characteristics of methane-air explosion in interconnected containers with different dimensions are studied in this paper, and the prediction models are established. The explosion apparatus consists of two cylindrical containers and a connecting pipe,
Chendi Lin   +3 more
doaj   +1 more source

Determination of large diameter bored pile's effective length based on Mindlin's solution

open access: yesJournal of Traffic and Transportation Engineering (English ed. Online), 2015
The calculation equation of large diameter bored pile's effective length is connected with its distribution of pile shaft resistance. Thus, there is a great difference between the calculation results under the different distributions of pile shaft ...
Zhijun Zhou   +3 more
doaj   +1 more source

Deployable Tensegrity Reflectors for Small Satellites [PDF]

open access: yes, 2002
Future small satellite missions require low-cost, precision reflector structures with large aperture that can be packaged in a small envelope. Existing furlable reflectors form a compact package which, although narrow, is too tall for many applications ...
Pellegrino, S., Tibert, A. G.
core   +2 more sources

Bending instability characteristics of double-walled carbon nanotubes [PDF]

open access: yes, 2005
The bending instability characteristics of double-walled carbon nanotubes (DWNTs) of various configurations are studied using a hybrid approach in which the deformation-induced increase of the intratube interaction energy is modeled with the bending ...
Chen, G, Hu, T, Jiang, Q, Wang, Q
core   +1 more source

Deformation characteristic of the axially fiber reinforced cylindrical rubber subjected to inner pressure

open access: yesNihon Kikai Gakkai ronbunshu, 2018
The cylindrical rubber is axially reinforced by the fiber and closed by the rigid ends. When the inner pressure is applied to this fiber reinforced rubber cylinder, the diameter expands and the length shrinks.
Tomoaki TSUJI   +4 more
doaj   +1 more source

Optimization and Tuning of Passive Tuned Mass Damper Embedded in Milling Tool for Chatter Mitigation

open access: yesJournal of Manufacturing and Materials Processing, 2020
Milling tools with a large length–diameter ratio are widely applied in machining structural features with deep depth. However, their high dynamic flexibility gives rise to chatter vibrations, which results in poor surface finish, reduced productivity ...
Wenshuo Ma   +3 more
doaj   +1 more source

Comparison of the device physics principles of planar and radial p-n junction nanorod solar cells [PDF]

open access: yes, 2005
A device physics model has been developed for radial p-n junction nanorod solar cells, in which densely packed nanorods, each having a p-n junction in the radial direction, are oriented with the rod axis parallel to the incident light direction.
Atwater, Harry A.   +2 more
core   +1 more source

Design and Research for a Gas–water Separator for Pump Cavitation Testing [PDF]

open access: yesJournal of Applied Fluid Mechanics
In open-type cavitation tests, pump inlet air bubbles affect the accuracy of cavitation margin measurements. To improve the accuracy of these measurements, a novel gas–water separation device for pump cavitation testing was designed in this study based ...
S. Y. Dong   +6 more
doaj   +1 more source

Osseointegration Aspects of Implants at the Bone Reconstruction Site by a Novel Porous Titanium Scaffold

open access: yeseJournal of Oral Maxillofacial Research, 2021
Objectives: Porous titanium is used for the reconstruction of large bone defects due to its excellent mechanical strength. The quality of osseointegration of implants placed in bone reconstructed with porous titanium is unknown.
Kazuya Doi   +6 more
doaj   +1 more source

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