modeling of relationship between ventilation rate of buildings and sick building syndrome symptoms hosseinpoor s , gholamiborujeni f *, mohammadian y received: 22 aug, 2013 accepted: 23 oct , 2013 abstract background & aims: indoor air pollution with microbilal, chemical and physical pollutants lead to sick building syndrome (sbs). suitable ventilation of buildings, is one of the best methods t...

A number of heating, ventilation and air-conditioning (HVAC) system vendors and operators have started to implement demand management systems in commercial buildings, yet we contend that the impact of such systems on building performance and occupant comfort is poorly understood. This paper examines such issues, showing the results from demand response experiments in two large office buildings....

The main objectives of green buildings are to improve their design and operation. Many studies have investigated whether lead higher occupant satisfaction, yet with contradictory conclusions. paper builds on the results post-occupancy evaluation surveys 68 using BUS Methodology. Satisfaction scores expressed by occupants qualities indoor environment were compared between non-certified buildings...

The results of wide band delay spread and time delay jitter measurements collected from five factory buildings are presented here. Carrier frequency was 1282 MHz. The data show that excess mean delay, r.m.s. delay spread, and time delay jitter values in single-story factory buildings are similar to values observed in and around multi-story office buildings. Differential time delay jitter measur...

In this paper we challenge the notion that “green” buildings can achieve greater productivity than buildings that are not accredited as “green”. For nearly two decades, research has produced apparent evidence which indicates that the design of a “green” building can enhance the productivity of its occupants. This relationship between building design and productivity is claimed to be achieved th...

Airborne fungi are often collected during the assessment of water-damaged buildings. Air sampling for endotoxin, a characteristic group of constituents of outer membranes of gram-negative bacteria, is another approach commonly used to characterize microbial conditions in buildings. This study presents results of fungal and endotoxin air samples collected in buildings with microbial complaints. ...

BACKGROUND Energy crisis in 1973 led to smaller residential and office buildings with lower air changes. This resulted in development of Sick Building Syndrome (SBS). The objective of this study was to assess the association of SBS with individual factors and indoor air pollutants among employees in two office buildings of Petroleum Industry Health Organization in Tehran city. MATERIALS AND M...

Unlike typical office buildings, most retail environments aren’t wired for universal network access. Therefore, existing LAN connections usually dictate where retailers can place intelligent systems such as point of sale (POS), kiosks, security cameras and digital signage. When a system move requires dropping a new LAN line, there are two common hurdles: an onerous approval process (IT and Faci...