Evaluation of variable volume diafiltration processes using the Logarithmic Integral

2011 ◽  
Vol 25 (1-3) ◽  
pp. 286-290 ◽  
Author(s):  
Greg Foley
2019 ◽  
pp. 5-9
Author(s):  
R.M. Insafov ◽  
◽  
A.F. Egorov ◽  
R.Kh. Gilmanova ◽  
A.A. Rakhmatullin ◽  
...  

Author(s):  
Matthew R. Devlin ◽  
Brad T. Young ◽  
Nicholas D. Naclerio ◽  
David A. Haggerty ◽  
Elliot W. Hawkes

2001 ◽  
Vol 19 (4) ◽  
pp. 388-394 ◽  
Author(s):  
Toshio Yamada ◽  
Takashi Akiba ◽  
Sei Sasaki

2021 ◽  
Vol 4 (1) ◽  
pp. 295-304
Author(s):  
Yu.P. Galchenko ◽  
◽  
V.A. Eremenko ◽  

A physical model of the process of underground ore mining is substantiated and it is shown that ensuring the geomechanical safety of subsurface development is associated with the technological capabilities of nature-like mining technologies for the reproduction of stable dy-namic structures in the lithospheric objects being worked out. A cognitive analysis of typical geotechnologies is carried out and it is shown that the modern geo-technological paradigm is based on the principles of combining in time the processes that generate a geomechanical dis-turbance in the lithosphere and the processes to overcome the consequences of this disturb-ance. The internally insoluble contradiction of this approach is revealed and it is shown that overcoming this contradiction opens up a very real prospect of creating a fundamentally new concept for the development of underground mining technologies based on the implementation of the global idea of nature-like technologies in the form of the concept of creating convergent mining technologies. With the use of the proposed and developed by prof. The Rodionov model of the lithosphere as a solid body with different-scale inhomogeneities performed a theoretical study of the features of the stress field development during the formation of inhomogeneities with variable volume and zero density and found that in this case, the conditions for the repro-duction of stable dynamic structures will be determined by processes on the external contour of inhomogeneities. This made it possible to substantiate the geophysical and geotechnological ideas of a new technological paradigm of subsurface exploration.


1997 ◽  
Vol 119 (3) ◽  
pp. 191-195 ◽  
Author(s):  
S. P. R. Czitrom

A wave-driven sea-water pump which operates by resonance is described. Oscillations in the resonant and exhaust ducts perform similar to two mass-spring systems coupled by a third spring acting for the compression chamber. Performance of the pump is optimized by means of a variable volume air compression chamber (patents pending) which tunes the system to the incoming wave frequency. Wave tank experiments with an instrumented, 1:20-scale model of the pump are described. Performance was studied under various wave and tuning conditions and compared to a numerical model which was found to describe the system accurately. Successful sea trials at an energetic coastline provide evidence of the system’s viability under demanding conditions.


1993 ◽  
Vol 88 ◽  
pp. 151-157
Author(s):  
J.X. Guo ◽  
Z.Y. Zhao ◽  
J.M. Yin ◽  
L.C. Tan

Life ◽  
2015 ◽  
Vol 5 (1) ◽  
pp. 181-211 ◽  
Author(s):  
Ben Shirt-Ediss ◽  
Ricard Solé ◽  
Kepa Ruiz-Mirazo

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