Second‐Order Calculation of Transit Time in a Medium with a Velocity Variation in One Dimension

1962 ◽  
Vol 34 (5) ◽  
pp. 735-735
Author(s):  
David S. Potter
Author(s):  
Rolan Arkhipovich Alborov ◽  
Ekaterina Leonidovna Mosunova ◽  
Elena Vyacheslavovna Zakharova ◽  
Gregory Rolanovich Alborov

The article deals with the problems of calculating the cost of agricultural products in crop and livestock production, associated with the methods of production accounting and management accounting systems for production facilities used in practice by agricultural organizations. Variants of definition (selection) of cost accounting objects, objects of calculation of the first order and objects of calculation of the second order are proposed. Conceptual models for the distribution of costs between the objects of the first-order calculation, the objects of the second-order calculation and the calculation of the cost of the received types of agricultural products have been developed. Using the example of the production of the main herd of dairy cattle, it is shown that the use of old methods of calculating the cost of agricultural products is not consistent, and it is recommended to use more justified methods of calculating the cost of crop and livestock products, recommended in the new editions of the relevant guidelines of the Ministry of Agriculture of the Russian Federation.


2013 ◽  
Vol 816-817 ◽  
pp. 439-442
Author(s):  
Bao Feng Zhang ◽  
Zhen Hai Liu ◽  
Xiao Ma

In the prospects of maritime development, the accuracy requirements of the marine sonar equipment also getting higher and higher, it is particularly important to measure the sound velocity in seawaters(ultrasound propagation velocity in seawater) in high-precision, in this experiment, basing on the seawater sound velocity variation influencing factors, proposing a method of average measuring the sound velocity of seawater based on STM32 and TDC-GP21 transit-time, The results of the experiment show that this method can be high-precision measurement of the size of the seawater sonic,meet the seawater sound velocity measurement requirements.


1979 ◽  
Vol 70 (5-6) ◽  
pp. 407-409
Author(s):  
P. Ceyzeriat ◽  
A. Denis ◽  
J. Désesquelles ◽  
M. Druetta

1934 ◽  
Vol 46 (5) ◽  
pp. 439-439 ◽  
Author(s):  
Willoughby M. Cady

1996 ◽  
Vol 06 (03) ◽  
pp. 485-496 ◽  
Author(s):  
HARRY DANKOWICZ

This paper derives an alternative approach to the Melnikov method, which greatly reduces the amount of algebra involved in higher-order calculations. To illustrate this, a particular system is studied for which such a higher-order analysis is necessary, due to an identically vanishing first-order Melnikov function. The results of a second-order calculation imply the existence of transverse homoclinic orbits and, consequently, the existence of a horseshoe.


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