A VSE equation of state for liquids—II: n-Alkanes,Benzene, Mercury and Water     

Arthur K. Doolittle 《Journal of The Franklin Institute》1976,301(3):241-251

The work reported in Ref. (1), carried out on n-heptane from 273·16K to the critical point (under moderate pressures), is extended to five n-alkanes, benzene, mercury and water under saturation pressures and extended to much lower temperatures.Forty calculations of various thermodynamic quantities pertaining to the liquids here studied (648 points) are presented in Tables II-IV. All parameters and physical constants involved are presented in Table V. The Standard Percentage Errors (SPE) for all the calculations and the temperature ranges are given in Table VI. The grand average SPE for the 648 points is about one-third of 1%. Only one calculation (the temperature of water from 393·16 to 563·16 K) had an error greater than 1% (18 points).  相似文献   

Book reviews     

H. D. Law  Burton R. Clark  Roy Niblett  Arthur T. Porter  John Brennan 《Higher Education》1974,3(3):365-376

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The control of current across a spark gap by means of an external magnetic field     

Robt F. Earhart  Henry Arthur Carlock 《Journal of The Franklin Institute》1933,215(2):179-187

An experimental study was made of the electrical discharge between parallel plates when the pressure between the plates had been reduced to a value slightly less than the critical pressure—i.e. to the condition when a tube begins to harden. Under these conditions the application of a transverse magnetic field will produce a discharge between the electrodes for potentials less than the normal potential required. It is believed that this is due to the lengthening of the path traversed by the ions in crossing the gap. The results obtained may be harmonized by means of the values found by Carr (Proc. Roy. Soc. 1903) who made a study of Paschen's Law in the region of critical pressure. In general it is found possible, under the conditions studied, to start a discharge and control the value of the current through a circuit of which the gap is a part by means of varying the magnetic field superposed on the gap and without altering either the impressed E.M.F. or the ohmic resistance of the circuit.This control is effected by altering the effective length of the spark gap in the circuit by means of the external magnetic field.  相似文献   

Measuring performance improvement in a strategic planning context     

Daniel A. Parry  Arthur E. Parry 《Performance Improvement》2001,40(5):34-38

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From the Guest Editors     

Arthur Molella  Robert Kargon 《Curator: The Museum Journal》2006,49(1):5-11

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