scholarly journals Thermoelastic temperature changes in poly(methyl methacrylate) at high hydrostatic pressure: Experimental

1982 ◽  
Vol 53 (10) ◽  
pp. 6536-6540 ◽  
Author(s):  
E. L. Rodriquez ◽  
F. E. Filisko
Keyword(s):  
Hydrostatic Pressure ◽  
Methyl Methacrylate ◽  
High Hydrostatic Pressure ◽  
Temperature Changes ◽  
Poly Methyl Methacrylate

The elastic behaviour under hydrostatic pressure of poly(methyl methacrylate) and its fully deuterated form

1990 ◽  
Vol 25 (11) ◽  
pp. 4654-4657 ◽  
Author(s):  
P. E. Ngoepe ◽  
E. F. Lambson ◽  
G. A. Saunders ◽  
B. Bridge
Keyword(s):  
Hydrostatic Pressure ◽  
Methyl Methacrylate ◽  
Elastic Behaviour ◽  
Poly Methyl Methacrylate

Temperature changes of infra-red bands of poly(methyl methacrylate)

1975 ◽  
Vol 11 (3) ◽  
pp. 229-232 ◽  
Author(s):  
P. Schmidt ◽  
B. Schneider ◽  
S. Dirlikov ◽  
M. Mihailov
Keyword(s):  
Methyl Methacrylate ◽  
Temperature Changes ◽  
Poly Methyl Methacrylate ◽  
Infra Red

Survival of mouse blastocysts after low-temperature preservation under high pressure

2004 ◽  
Vol 52 (4) ◽  
pp. 479-487 ◽  
Author(s):  
Cs. Pribenszky ◽  
M. Molnár ◽  
S. Cseh ◽  
L. Solti
Keyword(s):  
Phase Transition ◽  
Hydrostatic Pressure ◽  
Low Temperature ◽  
High Hydrostatic Pressure ◽  
Room Temperature ◽  
Freezing Point ◽  
Significant Loss ◽  
Embryo Cryopreservation ◽  
Subzero Temperatures ◽  
Survival Capacity

Cryoinjuries are almost inevitable during the freezing of embryos. The present study examines the possibility of using high hydrostatic pressure to reduce substantially the freezing point of the embryo-holding solution, in order to preserve embryos at subzero temperatures, thus avoiding all the disadvantages of freezing. The pressure of 210 MPa lowers the phase transition temperature of water to -21°C. According to the results of this study, embryos can survive in high hydrostatic pressure environment at room temperature; the time embryos spend under pressure without significant loss in their survival could be lengthened by gradual decompression. Pressurisation at 0°C significantly reduced the survival capacity of the embryos; gradual decompression had no beneficial effect on survival at that stage. Based on the findings, the use of the phenomena is not applicable in this form, since pressure and low temperature together proved to be lethal to the embryos in these experiments. The application of hydrostatic pressure in embryo cryopreservation requires more detailed research, although the experience gained in this study can be applied usefully in different circumstances.

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