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Characterization of the cold ductility degradation after aging in centrifugally cast 20Cr32Ni+Nb alloy tube
(ELSEVIER SCI LTD, 2009)
The mechanical properties (yield stress, ultimate tensile stress and elongation) of alloy 20Cr32Ni + Nb subject to isochronal aging at temperatures between 670 and 820 degrees C for 200 h were investigated using samples ...
Seismic response of retaining walls with cohesive backfill: Centrifuge model studies
(2016)
Observations from recent earthquakes show that retaining structures with non-liquefiable backfills perform extremely well; in fact, damage or failures related to seismic earth pressures are rare. The seismic response of a ...
Evaluation of the efficiencies of helical anchor plates in sand by centrifuge model tests
(CANADIAN SCIENCE PUBLISHING, NRC RESEARCH PRESSOTTAWA, 2012)
The uplift capacity of helical anchors normally increases with the number of helical plates. The rate of capacity gain is variable, considering that the disturbance caused by the anchor installation is generally more ...
Microstructural and fractographic investigation of a centrifugally cast 20Cr32Ni + Nb alloy tube in the ‘as cast’ and aged states
(São Paulo, 2013)
Fracture surface and microstructure of tensile samples taken from a centrifugally cast 20Cr32Ni + Nb alloy tube were investigated in the ‘as cast’ state and after being submitted to isochronal aging at temperatures between ...
Colloidal centrifugation for dog sperm selection prior cryopreservation with glycerol.
(2019)
Background: Dog ejaculates are produced in three fractions: the first and third fractions contain prostatic fluid, which is harmful for cryopreservation. The second fraction is spermatozoa-rich. Collecting the second ...
Is centrifugal ultrafiltration a robust method for determining encapsulation efficiency of pesticide nanoformulations?
(2021-03-14)
Loading active ingredients on nanocarrier systems is becoming a common strategy for improving pesticide formulations. One of the most important properties of these nanoformulations is the proportion of pesticide associated ...