Computational aspects of an extended EMQ model with variable production rate

2005 ◽  
Vol 32 (12) ◽  
pp. 3143-3161 ◽  
Author(s):  
B.C. Giri ◽  
T. Dohi
Keyword(s):  
Production Rate ◽  
Computational Aspects ◽  
Variable Production

Underground Gas Storage Inventory Analysis by a Noniterative Method

2004 ◽  
Vol 127 (2) ◽  
pp. 163-165 ◽  
Author(s):  
Ning Liu ◽  
Faruk Civan
Keyword(s):  
Production Rate ◽  
Gas Storage ◽  
Solution Algorithm ◽  
System Model ◽  
Inventory Analysis ◽  
Underground Gas Storage ◽  
Temperature Conditions ◽  
Practical Model ◽  
Variable Production

Underground gas storage inventory and conditions are predicted using a practical model and a noniterative solution algorithm. Various simulation scenarios concerning underground gas storage in depleted reservoirs with variable production rate and temperature conditions demonstrate the effectiveness of this approach. It is shown that the gas storage parameters can be determined conveniently by solving the system model directly without resorting to the tedious procedures of the previous approaches.

scholarly journals A finite horizon production model with variable production rates and constant demand rate

2002 ◽  
Vol 6 (2) ◽  
pp. 71-78 ◽  
Author(s):  
Zvi Goldstein
Keyword(s):  
Production Rate ◽  
Finite Horizon ◽  
Production Model ◽  
Maximum Speed ◽  
Lot Size ◽  
Production Problem ◽  
Demand Rate ◽  
The Cost ◽  
Production Lot Size ◽  
Variable Production

In this paper we present a finite horizon single product single machine production problem. Demand rate and all the cost patterns do not change over time. However, end of horizon effects may require production rate adjustments at the beginning of each cycle. It is found that no such adjustments are required. The machine should be operated either at minimum speed (i.e. production rate = demand rate; shortage is not allowed), avoiding the buildup of any inventory, or at maximum speed, building up maximum inventories that are controlled by the optimal production lot size.

The Production Rate of Cortisol in Man

PEDIATRICS ◽  
1958 ◽  
Vol 22 (3) ◽  
pp. 506-506
Keyword(s):  
Production Rate ◽  
Isotope Dilution ◽  
Full Text ◽  
Adrenal Glands ◽  
Dilution Technique ◽  
Daily Production ◽  
Isotope Dilution Technique ◽  
Endocrine Diseases ◽  
Variable Production ◽  
Stimulation Of

Widespread use of cortisone and similar compounds has proceeded without substantial knowledge concerning the amounts of such substances which are produced by the adrenal glands in health and in disease. The present study is an endeavor to gain information concerning the physiologic elaboration of hormones by the adrenal glands by the use of an isotope-dilution technique. The results of previous attempts to estimate the daily production of cortisol are reviewed. The full text of the paper must be consulted for details of the method and a discussion of the problems involved. The authors' results indicate that normal quiescent subjects produce from 4.9 to 27.9 mg of cortisol daily. Subjects with severe, active, but non-endocrine, diseases produce from 10 to 31.9 mg daily. Stimulation of the adrenals by adrenocorticotrophin resulted in an extraordinarily variable production, ranging from 21.8 to 257 mg/day. In Addison's disease the production rates were between 0.6 and 1.2 mg daily. It is interesting that in the diseased states studied the production of cortisol did not increase significantly above the normal.

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