The suspend feature of the modern smart device practically suppresses the background segment cleaning of the log-structured file system. In this work, we develop Suspend-aware Segment Cleaning for the log-structured file system. We seamlessly integrate the segment cleaning into the suspend module of the smartphone OS so that the log-structured file system can reclaim the free segments without i...

Membrane separation is an emerging technology for secondary effluent (SE) recycling as alternative water source. However, SE contains metabolites which form a film on membrane surfaces, leading to decrease in hydraulic capacity. This extensive study of the effect fouling UF performance, with detailed analysis foulants composition and morphology, evaluation most effective – either physical or ch...

Due to the frequent oil spill accidents and pollution of industrial oily wastewater, fouling has become a great challenge polymeric membrane ion-selective electrodes (ISEs) for applications in oil-contaminated areas. Herein, simple approach is proposed enhance oil-fouling resistance ISEs by surface modification zwitterionic polymer-based underwater oleophobic coating. As proof-of-concept, class...

The impact of humic acid fouling on the membrane transport of two pharmaceutically active compounds (PhACs) - namely carbamazepine and sulfamethoxazole - in forward osmosis (FO) was investigated. Deposition of humic acid onto the membrane surface was promoted by the complexation with calcium ions in the feed solution and the increase in ionic strength at the membrane surface due to the reverse ...

The quality of data in wireless sensor networks has a significant impact on decision support, and data cleaning is an effective way to improve data quality. However, if the data cleaning strategies are not correctly designed, it might result in an unsatisfactory cleaning effect with increased system cleaning costs. Initially, data quality evaluation indicators and their measurement methods in w...

Chemical characterization of scaling and removal processes was performed in real time via Raman spectroscopy a bench-scale reverse osmosis (RO) system. A custom RO cross-flow cell integrated with microscope objective, allowing for analysis localized membrane scale removal. Permeate flux also measured to provide real-time metric comparison. commercial flat sheet, thin-film composite (TFC RO) sca...

The use of algal biotechnologies in the production biofuels, food, and valuable products has gained momentum recent years, owing to its distinctive rapid growth compatibility be coupled wastewater treatment membrane photobioreactors. However, fouling is considered a main drawback that offsets benefits applications by heavily impacting operation cost. Several control strategies have been propose...

Background: Epidemiological studies have shown an association between cleaning work and asthma, but the risk factors are uncertain. The aim of this study was to assess the risk of asthma in women employed in domestic cleaning. Methods: A cross sectional study was conducted in 4521 women aged 30 to 65 years. Information on respiratory symptoms and cleaning work history was obtained using a posta...