نتایج جستجو برای: chemical industries
تعداد نتایج: 420144 فیلتر نتایج به سال:
in this paper the partial and total factors productivities of isfahan province industries are analyzed. the two digit isic yearly data is used for period 1972-1993 . the results shoe that the average partial labor productivity are 6/8 and 2/2 mil. rials which are corresponded to chemical and wood industries, respectively. the average labor productivity of all industries is roughly constant befo...
Not all industries face high patent discovery costs. Chemical patents are "indexable," meaning that relevant patents can be efficiently retrieved by chemical formula. As a result, discovery costs in the chemical and pharmaceutical industries are low, and inadvertent infringement by firms in these industries is rare. But many other patent categories are not indexable, and in some cases that make...
Introduction: The main aim of this study was quality and quality analysis of electronic and chemical industrial wastewater in the mega city of Tehran. This research was conducted in two phases, first: water consumption and second: quantity and quality analysis of wastewater in such industries. Methods: Right now there are 59 chemical and electronic industries with over 50 personnel in Tehran....
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