Design and development of a computer-based continuous monitor for the determination of the short-lived decay products of radon and thoron

1984 ◽  
Vol 225 (2) ◽  
pp. 399-406 ◽  
Author(s):  
J. Bigu ◽  
R. Raz ◽  
K. Golden ◽  
P. Dominguez
Keyword(s):  
Design And Development ◽  
Decay Products ◽  
Computer Based ◽  
Continuous Monitor

Determination of the concentration of aerosols of short-lived radon decay products

Atomic Energy ◽  
1962 ◽  
Vol 12 (4) ◽  
pp. 359-361
Author(s):  
N. P. Kattashov ◽  
G. A. Popov
Keyword(s):  
Decay Products ◽  
Radon Decay

Cell behaviour in a polygonal cell sheet*

Development ◽  
1984 ◽  
Vol 83 (Supplement) ◽  
pp. 313-327
Author(s):  
H. Honda ◽  
R. Kodama ◽  
T. Takeuchi ◽  
H. Yamanaka ◽  
K. Watanabe ◽  
...  
Keyword(s):  
Cell Sheet ◽  
Cell Monolayer ◽  
Time Lapse ◽  
Geometrical Method ◽  
Cell Behaviour ◽  
Cell Monolayers ◽  
Polygonal Cell ◽  
Computer Based ◽  
Insight Into

Cell monolayers on culture dishes were divided into two groups: tensile monolayers and non-tensile ones. In the development of an epithelium, a non-tensile cell monolayer turns into a tightly bound tensile one. Detection of these states was carried out by using the boundary shortening procedure, a computer-based geometrical method to show how much the polygonal cell boundary contracts. Non-tensile monolayers were divided further into two groups according to their motility: a fluctuating monolayer in which cells move laterally, and a stable monolayer in which cells are immobilized. Quantitative determination of cell motility was performed by analysing time-lapse cellular patterns. These computer-based geometrical analyses enabled us to divide monolayers into three groups: tensile stable monolayers, non-tensile stable monolayers and fluctuating monolayers, and this study therefore gives an insight into the way in which changing conformations of cells may be assayed.

Development of Automated Measurement Setup for Characterizing Underwater Acoustic Transducers

2016 ◽  
Vol 50 (6) ◽  
pp. 69-75
Author(s):  
Amirthalingam Malarkodi ◽  
Peddinti SSR Sridhar ◽  
Ganesan Latha
Keyword(s):  
Accurate Determination ◽  
Motion Controller ◽  
Report Generation ◽  
Underwater Acoustic ◽  
Acoustic Transducers ◽  
Acoustic Transducer ◽  
Measurement Results ◽  
Computer Based ◽  
Calibration Program

AbstractAccurate determination of sensitivity and directivity is important for any underwater acoustic transducer. In this work, an automatic measuring platform was designed and implemented for characterizing underwater acoustic transducers. The overall hardware setup includes a PXI (PCI Extensions for Instrumentation)-based data acquisition system, computer-based controller module, motion controller module, and LabVIEW-based automatic calibration program. The system performs a sequence of operations automatically and achieves synchronous control of transmission and acquisition of real-time acoustic signals as well as processing, recording, and report generation. This measurement platform can be utilized for characterizing any type of acoustic transducer for its receiving sensitivity, transmitting response, and directivity measurement as per IEC60565 standard. The measurement results for RESON TC4034 and RESON TC 2080 transducers are presented and the results show that the system is able to carry out accurate calibration and characterization of any underwater acoustic transducer. Sources of uncertainty for calibration are also presented with the confidence level of approximately 95%.

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