the main objective of this study was to investigate the environmental impacts of cotton production in golestan province of iran using life cycle assessment methodology. the data used in the study were obtained from cotton farmers with face-to-face questionnaire method during 2011-2012. the questionnaires included total inputs of cotton production in the region and yield weight. environmental im...

Disperse dye inks are used in the inkjet textile printing of polyester fabrics. We aimed at developing a black disperse dye ink consisting of yellow, magenta, and cyan dyes that met the exacting requirements of safety, image durability, and storage stability. One difficulty we met was dye particles tending to aggregate/agglomerate, leading to sedimentation and the threat of head clogging and/or...

background: optimal allocation of resources commensurate with performance improvement is the concerns of all countries including iran. estimation hospitals production function is important in the economic management of hospitals. objective: the aim of this study was to estimate the production function of iranian selected public hospitals as well as analyze the economic behavior in use of hospit...

In energy constrained Wireless Sensor Networks (WSN), network lifetime is considered as one of the most important metrics from the design point of view. In our paper, we have addressed the impact of a disperse node on network lifetime and have proposed a new design approach, Lifetime Enhancement for Disperse Networks (LEDN) to reduce its effect on a two tiered WSN. A mathematical analysis has a...