Results 1 to 10 of about 491,441 (311)

Curing America\u27s Addiction to Prisons [PDF]

, 1993
Our prisons have failed society because they do not, generally, provide an experience that is likely to help offenders overcome the obstacles that led them to make mistakes for which they are now being punished.
Leven, David C.
core   +1 more source

Methodology for Determining the Correct Ultrasonic Pulse Velocity in Concrete

Buildings
Quite often, concrete strength parameters must be determined in the shortest possible time. Due to the strong correlation between concrete’s mechanical and acoustic properties, ultrasonic devices can be used for this purpose.
Uldis Lencis, Aigars Udris, Patricia Kara De Maeijer, Aleksandrs Korjakins   +3 more
doaj   +1 more source

Strength and Absorption Study on Eco-Efficient Concrete Using Recycled Powders as Mineral Admixtures under Various Curing Conditions

Recycling
Durable building materials are essential for sustainability in construction projects, aiming to reduce environmental damage from the start to the end of a building’s life. Reducing the use of Portland cement in concrete production is essential because of
Bengin M. A. Herki
doaj   +1 more source

Investigation of gold nanorods as a sensing material in plasmonic sensor for triclopyr butotyl detection [PDF]

, 2020
Gold nanorods (GNRs) have a unique optical property of metal nanoparticles (MNPs) due to the localised surface plasmon resonance (LSPR) effect, which depends on the size, shape and dielectric property of the surrounding medium.
Md Shah, Nur Zehan An’nisa
core  

Three-point bridge calibration with one resistor [PDF]

, 1974
Method calibrates transducer bridge curing unbalanced condition and line resistance errors are negligible. Series resistance method can be automated easily and controlled by 2-bit information source which provide 4 states for ...
Brown, R. M., Harrison, D. R.
core   +1 more source

Effect of Moisture Condition on Concrete Core Strengths [PDF]

, 2019
The main purpose of this study was to determine if there would be any major differences between curing methods of cores taken for acceptance testing from a highway slab on a project.
Halsey, Lieska, Heyen, Wally
core   +1 more source

Method of manufacture of bonded fiber flywheel [PDF]

, 1980
Layers of fiberglass cloth, generally forming a circular mass, are prestressed by rotation during the curing of epoxy which surrounds and thereby couples together fibers and layers of the ...
Weyler, G. M., Jr.
core   +1 more source

Nonlinear temperature dependent failure analysis of finite width composite laminates [PDF]

A quasi-three dimensional, nonlinear elastic finite element stress analysis of finite width composite laminates including curing stresses is presented. Cross-ply, angle-ply, and two quasi-isotropic graphite/epoxy laminates are studied.
Herakovich, C. T., Nagarkar, A. P.
core   +1 more source

Cork-resin ablative insulation for complex surfaces and method for applying the same [PDF]

, 1980
A method of applying cork-resin ablative insulation material to complex curved surfaces is disclosed. The material is prepared by mixing finely divided cork with a B-stage curable thermosetting resin, forming the resulting mixture into a block, B-stage ...
Sharpe, M. H., Simpson, W. G., Walker, H. M.   +2 more
core   +1 more source

Adhesive joint evaluation by ultrasonic interface and lamb waves [PDF]

Some results on the application of interface and Lamb waves for the study of curing of thin adhesive layers were summarized. In the case of thick substrates (thickness much more than the wave length) the interface waves can be used.
Rokhlin, S. I.
core   +1 more source