Results 261 to 270 of about 912,950 (301)

Effect of Penetration Rate on Cone Penetration Resistance in Saturated Clayey Soils

Journal of Geotechnical and Geoenvironmental Engineering, 2008
In this paper, the effects of penetration rate on cone resistance in saturated clayey soils are investigated. Shear strength rate effects in clayey soils are related to two physical processes: the increase of shear strength with increasing rate of loading and the increase of shear strength as the process transitions from undrained to drained.
Kwangkyun Kim, Monica Prezzi, Rodrigo Salgado, Woojin Lee   +3 more
openaire   +1 more source

Penetration rates of osmium tetroxide with different fixation vehicles

Histochemie, 1960
The presence of any substance other than OsO4 in osmium tetroxide fixation mixtures causes a decrease in the penetration rate of the fixative. Fixation times should therefore be prolonged whenever a fixation mixture containing osmotically active substances is used.
L, HAGSTROEM, G F, BAHR
openaire   +2 more sources

Well Cements That Reduce Rate of Penetration

Journal of Petroleum Technology, 1997
This article is a synopsis of paper SPE 37821 "Well Cements That Reduce ROP (Rate of Penetration)," by S.S. Jennings, SPE, Saudi Aramco, originally presented at the 1997 SPE Middle East Oil Show and Conference held in Bahrain,15-18 March.
openaire   +1 more source

The Effect of Rheology on Rate of Penetration

SPE/IADC Drilling Conference, 1995
Abstract Field data have been collected and analyzed to 1) identify the characteristics of a drilling fluid that enhance rate of penetration, and 2) quantify the impact of particular fluid properties on rate of penetration. The information is being used to evaluate the economics of a fluid treatment program in order to deliver optimal ...
F.E. Beck, J.W. Powell, Mario Zamora
openaire   +1 more source

Market penetration rates of new energy technologies

Energy Policy, 2006
The market penetration rates of 11 different new energy technologies were studied covering energy production and end-use technologies. The penetration rates were determined by fitting observed market data to an epidemical diffusion model. The analyses show that the exponential penetration rates of new energy technologies may vary from 4 up to over 40 ...
openaire   +1 more source

Rate of Penetration of Phosphate into Muscle Cells

Acta Physiologica Scandinavica, 1940
Summary.Labelled sodium and labelled phosphate are injected simultaneously into the lymph sack of the frog and the distribution of the radioactive sodium and the radioactive phosphate between plasma and muscle of equal weights is determined. A constant partition ratio of the radioactive sodium is obtained after the lapse of about 20 minutes.
G. HEVESY, O. REBBE
openaire   +1 more source

How To Improve Rate of Penetration In Field Operations

Proceedings of SPE/IADC Drilling Conference, 1996
Abstract A method has been developed that identifies which factors are controlling rate of penetration (ROP) in a particular group of bit runs. The method uses foot-based mud logging data, geological information, and drill bit characteristics, to produce numerical correlations between ROP and applied drilling parameters or other ...
openaire   +1 more source

Rate of Penetration of a Porcupine Spine

Journal of Mammalogy, 1949
A R, SHADLE, D, PO-CHEDLEY
openaire   +2 more sources

Cancer Statistics, 2021

Ca-A Cancer Journal for Clinicians, 2021
Rebecca L Siegel, Kimberly D Miller
exaly  

rate of penetration

2014
openaire   +2 more sources