نتایج جستجو برای: keywords petrochemical products
تعداد نتایج: 2217864 فیلتر نتایج به سال:
Abstract “Queer” is a relatively recent and somewhat controversial term in African studies. Yet it proving to be productive, not only for understanding subjectivities of sexuality gender, but also situating Africa’s position the larger economy knowledge. Otu van Klinken explore productive tensions between “queer” “Africa,” aim read Africa as queer from Africa. Thus, rather than imagining polar ...
Packaging waste forms a significant part of municipal solid waste and has caused increasing environmental concerns, resulting in a strengthening of various regulations aimed at reducing the amounts generated. Among other materials, a wide range of oil-based polymers is currently used in packaging applications. These are virtually all non-biodegradable, and some are difficult to recycle or reuse...
Plastic solid waste (PSW) presents challenges and opportunities to societies regardless of their sustainability awareness and technological advances. In this paper, recent progress in the recycling and recovery of PSW is reviewed. A special emphasis is paid on waste generated from polyolefinic sources, which makes up a great percentage of our daily single-life cycle plastic products. The four r...
Women take relatively longer time for shopping comparing with men. This paper presents a system for product retrieval and recommendation based on psychology of women’s shopping activity, and an implementation of the system for apparel products. This system supposes products which pre-defined keywords are assigned, and icons representing the combination of the keywords. It acts real shopping beh...
Certain complications of pregnancy, e.g., threatened spontaneous abortion, toxemia, emesis, and anemia, were studied in pregnant women living in industrial areas contaminated by smelters and the petrochemical industry. Exposure to lead or aromatic hydrocarbons was assessed in parallel by the determination of these agents or their metabolites in blood and urine. Comparison of respective exposure...
The main objective of optimizing any chemical process is to find the best operation conditions that can maximize the production of the most valuable products and minimize operating costs with respecting the operational and environmental constraints. Uncertainty or variations in some parameters such as demand and supply of each processing unit or product prices can seriously affect the optimizat...
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