Critical anomaly of dielectric permittivity for the temperature and pressure paths on approaching the critical consolute point

2001 ◽  
Vol 64 (6) ◽  
Author(s):  
S. J. Rzoska ◽  
A. Drozd-Rzoska ◽  
J. Zioło ◽  
Piotr Habdas ◽  
J. Jadżyn
Keyword(s):  
Dielectric Permittivity ◽  
Critical Anomaly ◽  
Consolute Point ◽  
Temperature And Pressure

Fluctuation-induced dielectric permittivity in the isotropic phase of cholesteric liquid crystals

2016 ◽  
Vol 30 (09) ◽  
pp. 1650053
Author(s):  
Prabir K. Mukherjee ◽  
Asok K. Das
Keyword(s):  
Experimental Data ◽  
Phase Transition ◽  
Dielectric Permittivity ◽  
Order Parameter ◽  
Orientational Order ◽  
Isotropic Phase ◽  
Orientational Order Parameter ◽  
Cholesteric Phase ◽  
Static Dielectric Permittivity ◽  
Temperature And Pressure

The temperature and pressure dependence of the static dielectric permittivity in the isotropic phase of the isotropic to cholesteric phase transition is calculated using Landau–de Gennes’s fluctuation theory, allowing spatial variation of the orientational order parameter. A comparison is made with experimental data available in the isotropic phase of the isotropic to cholesteric phase transition.

Pressure behaviour of dielectric permittivity on approaching the near-critical consolute point

1999 ◽  
Vol 45 (3) ◽  
pp. 334-340 ◽  
Author(s):  
S. J Rzoska ◽  
M Paluch ◽  
P Habdas ◽  
A Drozd-Rzoska ◽  
P Urbanowicz
Keyword(s):  
Dielectric Permittivity ◽  
Consolute Point

Heat-Etching with a Bullivant Type II Simple Freeze-Cleave Device

1970 ◽  
Vol 28 ◽  
pp. 106-107 ◽  
Author(s):  
Ronald S. Weinstein ◽  
N. Scott McNutt
Keyword(s):  
New Zealand ◽  
General Hospital ◽  
Massachusetts General Hospital ◽  
Type I ◽  
Type Ii ◽  
Collaborative Effort ◽  
Temperature And Pressure ◽  
The University

The Type I simple cold block device was described by Bullivant and Ames in 1966 and represented the product of the first successful effort to simplify the equipment required to do sophisticated freeze-cleave techniques. Bullivant, Weinstein and Someda described the Type II device which is a modification of the Type I device and was developed as a collaborative effort at the Massachusetts General Hospital and the University of Auckland, New Zealand. The modifications reduced specimen contamination and provided controlled specimen warming for heat-etching of fracture faces. We have now tested the Mass. General Hospital version of the Type II device (called the “Type II-MGH device”) on a wide variety of biological specimens and have established temperature and pressure curves for routine heat-etching with the device.

ESEM - A multipurpose surface Electron Microscope

1986 ◽  
Vol 44 ◽  
pp. 632-633 ◽  
Author(s):  
G.D. Danilatos
Keyword(s):  
Electron Microscope ◽  
Room Temperature ◽  
Environmental Scanning ◽  
Gas Composition ◽  
Saturated Water Vapor ◽  
Surface Electron ◽  
Current State ◽  
Saturated Water ◽  
New Type ◽  
Temperature And Pressure

Over recent years a new type of electron microscope - the environmental scanning electron microscope (ESEM) - has been developed for the examination of specimen surfaces in the presence of gases. A detailed series of reports on the system has appeared elsewhere. A review summary of the current state and potential of the system is presented here.The gas composition, temperature and pressure can be varied in the specimen chamber of the ESEM. With air, the pressure can be up to one atmosphere (about 1000 mbar). Environments with fully saturated water vapor only at room temperature (20-30 mbar) can be easily maintained whilst liquid water or other solutions, together with uncoated specimens, can be imaged routinely during various applications.

Dielectric permittivity in the x-ray region

1978 ◽  
Vol 126 (11) ◽  
pp. 479-513 ◽  
Author(s):  
A.V. Kolpakov ◽  
V.A. Bushuev ◽  
R.N. Kuz'min
Keyword(s):  
Dielectric Permittivity ◽  
X Ray
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