Experimental determination of the state of stress of the solid rocks around development workings in thick seams

1970 ◽  
Vol 6 (2) ◽  
pp. 132-135
Author(s):  
G. I. Gritsko ◽  
V. S. Akimov
Keyword(s):  
Experimental Determination ◽  
The State ◽  
State Of Stress

A New Method For the Complete Determination of the State of Stress in Rock Masses

Géotechnique ◽  
1969 ◽  
Vol 19 (1) ◽  
pp. 116-132 ◽  
Author(s):  
M. Rocha ◽  
A. Silvério
Keyword(s):  
The State ◽  
New Method ◽  
Rock Masses ◽  
State Of Stress ◽  
Complete Determination

Influence of the amorphous phase and preceding solution processing on the eutectic behaviour in the state diagram of P3HT : PC61BM determined by rapid heat–cool calorimetry

RSC Advances ◽  
2016 ◽  
Vol 6 (95) ◽  
pp. 92981-92988 ◽  
Author(s):  
M. Defour ◽  
N. Van den Brande ◽  
L. Van Lokeren ◽  
G. Van Assche ◽  
W. Maes ◽  
...  
Keyword(s):  
Experimental Determination ◽  
Amorphous Phase ◽  
Organic Photovoltaics ◽  
State Diagram ◽  
The State ◽  
Solution Processing ◽  
State Diagrams

Experimental determination of eutectic state diagrams for organic photovoltaics based on advanced calorimetry highlighting the importance of the amorphous phase.

The Determination of Mass Flow in the Vapour-Compression Refrigerator

1935 ◽  
Vol 129 (1) ◽  
pp. 477-505 ◽  
Author(s):  
E. C. Smith
Keyword(s):  
Experimental Determination ◽  
Mass Flow ◽  
The State ◽  
Volumetric Efficiency ◽  
Coefficient Of Performance ◽  
Flow Meter ◽  
Wide Range ◽  
Liquid Portion ◽  
Vapour Compression

The paper describes an experimental determination of the mass flow of refrigerant per minute and refrigerating effect per minute in a vapour-compression refrigerator, when the state of the refrigerant at the exit from the evaporator was varied over a wide range of superheat temperatures and dryness fractions. The usual methods of measuring the flow of liquids in pipes were not suitable for the present work and a special type of flow meter, described in the text, was developed. The results obtained were not as theory would tend to suggest, but were substantially modified by practical conditions, particularly for dryness fractions between 0·97 and 0·87. The volumetric efficiency changed abruptly over this range from a higher to a lower value. The reduction was attributed to the effect of re-evaporation of. the liquid portion of the refrigerant in the compressor during the suction stroke, as it was found that the higher volumetric efficiency was obtained when the refrigerant was superheated throughout most of the delivery stroke, and the lower volumetric efficiency occurred when the state of the refrigerant on entering the compressor resulted in liquid being present in the cylinder at the end of the delivery stroke. The reduction in the volumetric efficiency resulted in a corresponding reduction in the mass flow, the refrigerating effect, and the heat rejected by the condenser per minute, and in the coefficient of performance for dryness fractions ranging between 0·97 and 0·87.

Approximate determination of the state of stress and strain in an elastoplastic body weakened by cracks

1990 ◽  
Vol 25 (6) ◽  
pp. 593-598 ◽  
Author(s):  
V. V. Panasyuk ◽  
I. M. Pan'ko ◽  
N. I. Tim'yak
Keyword(s):  
The State ◽  
Approximate Determination ◽  
Stress And Strain ◽  
Elastoplastic Body ◽  
State Of Stress
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