scholarly journals Lead-time oriented production control policies in two-machine production lines

2015 ◽  
Vol 48 (3) ◽  
pp. 2399-2404 ◽  
Author(s):  
Alessio Angius ◽  
Marcello Colledani ◽  
András Horváth
2018 ◽  
Vol 50 (3) ◽  
pp. 178-190 ◽  
Author(s):  
Alessio Angius ◽  
Marcello Colledani ◽  
Andras Horvath

1978 ◽  
Vol 10 (2) ◽  
pp. 87-91 ◽  
Author(s):  
Robert D. Weaver

Because of growing stocks of grain and the reinstitution of production controls, the question of what allocative impacts such controls imply is once again relevant. The prospect that restrictions on land use may initiate an intensification in the use of substitute inputs such as fertilizer, which are already high in price, is discouraging. Although the issue is an old one, empirical evidence on the extent of these effects is incomplete.1 The purpose of this article is to derive a convenient means of measuring the allocative effects of changes in input restrictions. As an example of empirical application, results are presented which indicate the impact of acreage restrictions during the marketing quota years in North and South Dakota.


Author(s):  
Alireza Esfandyari ◽  
Aarief Syed-Khaja ◽  
Torben Landskrone ◽  
Joerg Franke

In electronics assembly, the convection based soldering technologies in the production lines consumes massive resources and energy. The recent advancements in soldering technologies consume comparatively higher resources and needs to be optimized for resource efficient production which is also the motivation for the present work. This study is devoted to quantify the resource consumption and qualify this consumption through exergy flows in an over-pressure reflow technology as an energy intensive process in electronics manufacturing. The analysis implies on a big saving potential for energy consumption specifically during the over-pressure process which also defines the void reduction quality of solder joints. Exergy efficiency is the fraction of the work potential of the heat that is converted to work, and it illustrates the quality of consumed resources during the soldering oven process. Shortening the production lead-time, and increasing the production rate increase the efficiency of exergy and prevents wastage of usable energy. Furthermore, the set-up improvements for the temperature profiles are necessary, and the changes toward developing new technologies in pre-heating and over-pressure chamber zones are mandatory if a high efficiency of resources used is expected.


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