Using a comb filter to describe time-varying biological rhythmicities

1980 ◽  
Vol 48 (3) ◽  
pp. 557-561 ◽  
Author(s):  
P. J. Brusil ◽  
T. B. Waggener ◽  
R. E. Kronauer
Keyword(s):  
High Pressure ◽  
Temperature Control ◽  
Research Unit ◽  
Internal Controls ◽  
Comb Filter ◽  
Time Varying ◽  
High Pressure Chamber ◽  
Internal Temperature ◽  
Microelectrode Recordings ◽  
Continuous Perfusion

A modular high-pressure chamber is described. This chamber will allow stable microelectrode recordings to be made for a variety of intracellular preparations at pressure of 200-300 atmospheres absolute. Its features include internal temperature control, easy visibility, continuous perfusion, electrical penetrations, and manipulation of several internal controls while the system is at pressure. The small size and high versatility of the Wilson chamber make it a convenient and inexpensive research unit for experiments in the moderately high-pressure ranges that affect biological preparations.

A versatile high-pressure chamber for electrophysiological measurements

1980 ◽  
Vol 48 (3) ◽  
pp. 562-566 ◽  
Author(s):  
J. L. Parmentier ◽  
B. B. Shrivastav ◽  
P. B. Bennett
Keyword(s):  
High Pressure ◽  
Temperature Control ◽  
Research Unit ◽  
Internal Controls ◽  
Pressure Chamber ◽  
High Pressure Chamber ◽  
Internal Temperature ◽  
Microelectrode Recordings ◽  
Electrophysiological Measurements ◽  
Continuous Perfusion

A modular high-pressure chamber is described. This chamber will allow stable microelectrode recordings to be made for a variety of intracellular preparations at pressure of 200-300 atmospheres absolute. Its features include internal temperature control, easy visibility, continuous perfusion, electrical penetrations, and manipulation of several internal controls while the system is at pressure. The small size and high versatility of the Wilson chamber make it a convenient and inexpensive research unit for experiments in the moderately high-pressure ranges that affect biological preparations.

Fundamental Properties of the High Pressure Hydrogen Microdischarges in Static and Time-Varying Electric Fields

2017 ◽  
Vol 45 (6) ◽  
pp. 913-917
Author(s):  
Matej Klas ◽  
Ladislav Moravsky ◽  
Stefan Matejcik ◽  
Branislav Radjenovic ◽  
Marija Radmilovic-Radjenovic
Keyword(s):  
High Pressure ◽  
Electric Fields ◽  
Time Varying ◽  
Fundamental Properties ◽  
Pressure Hydrogen

Automatically Tuned Probe Head System for Pulsed NQR Spectroscopy in Extreme Thermodynamic Conditions

1994 ◽  
Vol 49 (1-2) ◽  
pp. 42-46 ◽  
Author(s):  
Michał Ostafin ◽  
Mariusz Maćkowiak ◽  
Marek Bojarski
Keyword(s):  
High Pressure ◽  
Low Temperature ◽  
Operating Frequency ◽  
High Pressure Chamber ◽  
Serial Port ◽  
Remote Location ◽  
Thermodynamic Conditions ◽  
Automated Tuning ◽  
System Operating ◽  
Probe Head

Abstract A complete N Q R probe-head system operating in the frequency ranges 0.5 -150 and 150- 300 MHz is described. The head is particularly suited for NQR experiments carried out at a remote location, for example in a low-temperature cryostat or high-pressure chamber. Moreover, the head system includes a microprocessor-controller for automated tuning of the probe to the operating frequency of the associated NQR spectrometer. The controller can be easily interfaced to a PC via standard serial port.

Sign in / Sign up

Export Citation Format

Share Document