We have reviewed various strategies involved in containment of measles in healthcare facilities during community outbreaks. The strategies that are more applicable to resource-poor settings, such as natural ventilation, mechanical ventilation with heating and air-conditioning systems allowing unidirectional air-flow, and protection of un-infected patients and healthcare workers (HCWs), have bee...

The paper analyzes and compares the perspectives for reducing energy consumption associated to operation of Heating Ventilation Air Conditioning system climatic control large-size non-residential buildings. Three different strategies are considered comparing use boiler heat pumps as heating systems analyzing demand-controlled ventilation, operating on effective occupancy building. applied two e...

Energy consumption based on the building heating, ventilation, and air-conditioning (HVAC) systems is sharply rising daily. At this point, heat recovery ventilation save energy while contributing to indoor air quality thermal comfort. This work mainly focuses designing air-to-air cross-flow exchanger system duct lines. First, ducts, bends, vents, unit are placed around selected domain complying...

While numerous studies have examined the magnitude of the urban heat island, no large-scale study has yet analyzed its variability using an air-mass based methodology. The air-mass approach can provide unique insight by discerning how large-scale weather patterns may impact the magnitude of the heat island effect. This study utilizes the Spatial Synoptic Classification (SSC) scheme, a recently-...

A direct expansion (DX) HVAC system is an efficient way to supply fresh and dehumidified air to a built environment. To improve the efficiency of a conventional DX system in hot and humid regions, fresh air dehumidification and conditioning systems with energy recovery measures are the key equipment to reach such a goal. To achieve this goal an integrated system is proposed. The integrated syst...

How effective is naturally ventilated internal thermal mass for obviating air-conditioning, mitigating heatwaves and storing carbon in buildings? This study combines detailed climate model outputs with scaling rules optimizing coupled buoyancy ventilation. It identifies regions where this passive design strategy most during future determines how much each person needs to stay comfortable these ...

A major factor to be considered in the study of teaching-learning process based on spoken communication is sound field. Excessive background noise levels or reverberation time values inside a classroom interfere with oral communication, creating an acoustic barrier to the teachinglearning process. In previous work, reverberation time was measured in a sample of university classrooms in the City...

Heat Alert and Response Systems (HARS) are currently undergoing testing and implementation in Canada. These programs seek to reduce the adverse health effects of heat waves on human health by issuing weather forecasts and warnings, informing individuals about possible protections from excessive heat, and providing such protections to vulnerable subpopulations and individuals at risk. For these ...