Urban air quality mapping has been widely applied in urban planning, pollution control and personal exposure assessment. maps are traditionally derived using measurements from fixed monitoring stations. Due to high cost, these stations generally sparsely deployed a few representative locations, leading highly generalized map. In addition, varies rapidly over short distances (<1 km) is influe...

1. introduction during the past decade, many efforts for investigating the relationship among air pollution and meteorological factors have been undertaken and some statistical methods have been proposed. population increase and technological advancement were among the factors affecting creation and extension of air pollution in big cities, forcing large cities all over the world to contemplate...

With the growth of population and migration, density is growing. In high area, it found that air spread virus rapidly. Covid-19 cases are actively happening in Malaysia government implement movement control to avoid human traffic reduce infected case. metropolis, such as Petaling district with more strata development, higher than other district. Therefore, study relationship between density, th...

Background & objectives: Work-related illnesses account for a large number of social problems. According to occupational therapists, occupational diseases are considered as life-threatening factors for workers. The aim of this study was to measure air pollution to suspended particles and to assess the health risk of PM2.5 and PM10 exposure in the textile industry. Methods: This analytical-cros...

This paper improves an analytical model for interior permanent-magnet synchronous machine (IPMSM) by a magnetic equivalent circuit (MEC) approach. The proposed MEC model consists of three major regions: the stator, the rotor, and the air gap. The conventional reluctance approach is applied to the first two regions. Since the magnetic field in air gap region is supposed to distribute unevenly, t...

Hovering hummingbirds offer a model locomotor system for which analyses of both metabolism and flight mechanics are experimentally tractable. Because hummingbirds exhibit the highest mass-specific metabolic rates among vertebrates, maximum performance of hovering flight represents the upper limit of aerobic locomotion in vertebrates. This study evaluates the potential constraints of flight mech...