Results 81 to 90 of about 683,357 (240)
Thermal buckling of ballasted tangent track
Advances in Mechanical Engineering, 2020 Euler type analysis usually used for compression members in structural engineering does not work for railroad track. Euler type analytical formulas for horizontal and vertical buckling endorsed in a recent literature is reviewed to demonstrate its ...
Nazmul Hasan
doaj +1 more source
Minimum Vertical Tail Drag [PDF]
Tail size requirement calculations are presented for a vertical tail performing a coordinated turn reversal at corresponding load requirements with minimum tail ...
Larrabee, E. E.
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Arthritis Care &Research, EarlyView.Objective The concern that nonsteroidal anti‐inflammatory drugs (NSAIDs) may precipitate flares of inflammatory bowel disease (IBD) has limited their use in managing musculoskeletal symptoms in those with IBD, but safety data are mixed. Methods This retrospective cohort study included patients with IBD aged at least 18 years from Optum's deidentified ...
Adam S. Mayer +4 more
wiley +1 more source
Apparatus for positioning modular components on a vertical or overhead surface [PDF]
, 1976 An apparatus is disclosed for holding a plurality of modular components against a surface. A fixture prepositions the components and a vacuum develops a uniform pressure which presses and holds the fixture and objects against a surface.
Haynig, C. C., Messineo, S. V.
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Advanced Engineering Materials, EarlyView.Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt +8 more
wiley +1 more source
Interlayer Mechanical Behavior in CRTS II Slab Ballastless Tracks Under Vertical Loading
Applied SciencesReliable in situ quantification of interlayer mechanics in CRTS-II ballastless track slabs remains limited by the poor instrumentability of the CA mortar layer. This study implements a quasi-distributed fiber-optic sensing scheme by encapsulating FBGs in
Xiao Guo +4 more
doaj +1 more source
Characterizing the uncertainty in holddown post load measurements [PDF]
In order to understand unexpectedly erratic load measurements in the launch-pad supports for the space shuttle, the sensitivities of the load cells in the supports were analyzed using simple probabilistic techniques.
Richardson, J. A., Townsend, J. S.
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Advanced Engineering Materials, EarlyView.The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi +3 more
wiley +1 more source
Horizontal Dynamic Response of Pile Group Foundation in Liquefied Soil Under Vertical Load
Shanghai Jiaotong Daxue xuebaoThe horizontal vibration model of partially buried pile group under vertical load is established based on Biot saturated porous media theory, considering the flow characteristics of liquefied soil.
HU Anfeng, CHEN Yiyang, XIAO Zhirong, CHEN Zheng
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Ductility of RC Columns due to Strong Near Source Earthquakes [PDF]
, 2000 Near source earthquakes can produce strong vertical ground motions with large amplitude and high frequency content. In this paper the axial ductility behavior of RC columns due to near source earthquakes is investigated.
Chouw, Nawawi +2 more
core +1 more source