A data-mining approach for the optimization of a HVAC (heating, ventilation, and air conditioning) system is presented. A predictive model of the HVAC system is derived by data-mining algorithms, using a dataset collected from an experiment conducted at a research facility. To minimize the energy while maintaining the corresponding IAQ (indoor air quality) within a user-defined range, a multi-o...

UNLABELLED This paper presents formaldehyde and volatile organic compounds (VOC) concentrations, potential sources and impact factors in 100 homes. The 24-h average formaldehyde concentration in 37 homes exceeded the good class of the Hong Kong Indoor Air Quality Objectives (HKIAQO), whereas the total VOCs concentration in all homes was lower than the HKIAQO. Compared to other East Asian cities...

Humans spend more than 80% of their lives indoors resulting in an increased demand for high indoor air quality (IAQ). At the same time, tends to be at least twice as polluted outdoor air, and health threats caused by long-term exposure pollution are rising. Few experiments under real-life conditions have demonstrated positive effects plants on parameters related IAQ, improved humidity temperatu...

This paper focuses on the performance assessment of green filtration system that incorporated with evaporative cooling used to enhance indoor air quality. was invented in an attempt thrive a clean environment becomes solution for certain places. Indoor quality (IAQ) and public health risk related each other, it is due percentage city population stays indoors rather than go outdoors. contaminati...

The indoor air quality (IAQ) of severely polluted toilets is associated with the transmission diseases. Computational fluid dynamics (CFD) methods and experimental measurements were used to analyze diffusion characteristics pollutants. This study investigated normalized concentration ammonia hydrogen sulfide pollutants under three ventilation systems—mixing (MV), personalized (PV), impinging je...

Substances such as dental materials routinely used in procedures acrylate compounds, organic solvents, disinfectants can spread into air within the working environment and affect indoor quality (IAQ). This study aimed to identify hazards at laboratories measure physical parameters of IAQ particulate matter (PM), temperature humidity. Hazard Identification, Risk Assessment Control (HIRARC) analy...

BACKGROUND Scarce information is available about the relationships between indoor air quality (IAQ) at day care centers (DCC), the estimated predisposition for asthma, and the actual wheezing susceptibility. METHODS In the Phase II of ENVIRH study, 19 DCC were recruited after cluster analysis. Children were evaluated firstly using the ISAAC questionnaire and later by a follow-up questionnaire...

known as HAL captivated a generation of people with the concept of artificial intelligence (AI) and intelligent machines. Today, as the world moves into one in which everyone owns at least one mobile device, be it a smartphone, a tablet, or other handheld device, applications on the devices are increasingly more intelligent as well. Estimates put the global revenue for mobile apps at $150 billi...