Continuous Monitoring of Water Quality Using Portable and Low-Cost Approaches

on the relationship between using discourse markers and the quality of expository and argumentative academic writing of iranian english majors

the aim of the present study was to investigate the frequency and the type of discourse markers used in the argumentative and expository writings of iranian efl learners and the differences between these text features in the two essay genres. the study also aimed at examining the influence of the use of discourse markers on the participants’ writing quality. to this end the discourse markers us...

PILS: Low-Cost Water-Level Monitoring

Water Quality Management Using a Cost-effective and Field-portable Lensfree On-chip Microscope

We investigate the use of a high-throughput, compact and light-weight (~46grams) lensfree microscope for detection and enumeration of pathogenic waterborne parasites (e.g., Giardia Lamblia and Cryptosporidium Parvum) at lowconcentration levels. This field-portable platform operates based on lensfree inline-holography and achieves a resolution of ~1.5μm over a wide field-of-view (FOV) of ~24mm. ...

EPQ model with depreciation cost and process quality cost as continuous functions of time

Extensive research has been devoted to economic production quantity (EPQ) problem. However, little atten-tion has been paid to problems where depreciation cost and process quality cost must be considered, simulta-neously. In this paper, we consider the economic production quantity model of minimizing the annual total cost subject to depreciation cost and process quality cost, where depreciation...

Innovative biological approaches for monitoring and improving water quality

Water quality is largely influenced by the abundance and diversity of indigenous microbes present within an aquatic environment. Physical, chemical and biological contaminants from anthropogenic activities can accumulate in aquatic systems causing detrimental ecological consequences. Approaches exploiting microbial processes are now being utilized for the detection, and removal or reduction of ...