NOTE ON THE COMPUTATION OF RATE OF RESPONSE DIRECTLY FROM A CUMULATIVE RECORD

1962 ◽  
Vol 11 (6) ◽  
pp. 332
Author(s):  
JAMES F. MCLEAN
1962 ◽  
Vol 11 (2) ◽  
pp. 332-332 ◽  
Author(s):  
James F. McLean ◽  
Robert H. Dufort

1997 ◽  
Vol 42 (9) ◽  
pp. 783-785
Author(s):  
Brendan Maher
Keyword(s):  

1982 ◽  
Vol 47 (2) ◽  
pp. 446-453
Author(s):  
Josef Horák ◽  
František Jiráček ◽  
Libuše Ježová

A possibility has been tested in the paper of the feed back control of temperature of the reaction mixture in a batch reactor with an exothermic reaction through the variable area of the cooling surface. The measurement were carried out in a laboratory reactor with a retractable cooler which was being immersed into the reaction mixture. The speed of motion of the cooler was sufficiently high permitting the process of immersion to be regarded as practically instantaneous. The aim of the control was to stabilize the set point temperature of the reaction mixture by a two-point controler. In dependence on the rate of response of the system to a change of the section variable either the ideal relay or the relay with hysteresis control algorithmus were used. The results of measurements showed that with the aid of a retractable cooler the temperature could be controlled safely even in those cases, in which the control by the variable flow rate of the coolant was unfeasible. The verification was carried out in the open-loop instable operating point of the reactor.


2011 ◽  
Vol 34 (1) ◽  
pp. 107-112 ◽  
Author(s):  
Alaaeldin Shablak ◽  
Kanwal Sikand ◽  
Jonathan H. Shanks ◽  
Fiona Thistlethwaite ◽  
Andrea Spencer-Shaw ◽  
...  

2019 ◽  
Vol 9 (2) ◽  
pp. 76-80
Author(s):  
M. P. Vidyarani ◽  
C. P. Ramasesh

The paper investigated the use of open access and licensed electronic books by the research scholars in academic and research institutions in Karnataka. The rate of response is 92.5%. In addition to questionnaire method, interview schedule and observation method were also used to collect required information. It is clear from the study that a large number of research scholars rely upon open access and licensed e-books for academic and research purposes. The institutions have to subscribe large number of e-books for target users and proper training should be given to maximize utilization of open access and licensed e-books.


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