UNLABELLED Used ventilation filters are a major source of sensory pollutants in air handling systems. The objective of the present study was to evaluate the net effect that different combinations of filters had on perceived air quality after 5 months of continuous filtration of outdoor suburban air. A panel of 32 subjects assessed different sets of used filters and identical sets consisting of ...

The paper presents design and experimental investigation of an electronic system for control the temperature exhaust gases turbocharging air pressure in turbochargers diesel automobile engines. existing problems are faults fuel engine. indicators changes values exact areas turbocharger. presented device is a controller that monitors precisely pressure, which so vital long operation automobile. ...

The Center for Electronic Commerce (CEC) embodies over fourteen years of experience in applying agents to industrial problems. We have found such a fit in three areas: coordination of industrial designers, simulation and modeling of complex products and processes, and scheduling and control of production systems. This presentation outlines several trends in modern manufacturing, describes how t...

clinical problem, and making an early accurate diagnosis is quite difficult in most cases. After intubation, clinical manifestations of TEF are frequently air leak around the cuff and gastric distention.2 Massive gastric distention in intubated patients has been reported as an early marker for the defective airway,6 and this finding should alert that a communication may exist between the airway...

Since the first Ford Model T rolled off the assembly line, the regulation of automobile safety systems (“safety systems”) has changed drastically. While the regulation of safety systems was nonexistent at the birth of the Model T, the practice is abundant today. Modern automobile safety regulation saw its beginning in the late 1960s with the advent of seat belt laws, vehicle crashworthiness tes...

Platinum, Pd, Rh, and Os were found to occur at elevated concentrations in airborne particles (PM10) collected at urban sites in Boston, MA. Average Pt, Pd, Rh, and Os concentrations were 6.9 +/- 1.9, 8.1 +/- 1.8, 1.50 +/- 0.50, and 0.068 (-0.068 + 0.070) pg m(-3), respectively. Elevated Pt, Pd, and Rh concentrations are attributed to automobile catalysts, which use Pt, Pd, and Rh for the remov...