نتایج جستجو برای: electric lamp

تعداد نتایج: 153375  

Journal: :Keiei Shigaku (Japan Business History Review) 2007

Journal: :Journal of the Illuminating Engineering Institute of Japan 2003

Journal: :JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN 1930

ژورنال: سنجش و ایمنی پرتو 2017

The technology used in energy-saving compact fluorescent lamps (CFLs), provides a quarter of the energy consumption of incandescent lamps to produce equivalent light energy while CLFs shelf life is up to ten times of incandescent lamps. So the incandescent lamps in homes and workplaces are replaced with CFLs. Due to the use of ballast in the structure of CFLs, electric and magnetic fields are g...

Journal: :Journal of the Illuminating Engineering Institute of Japan 1997

Journal: :Indoor air 2010
J Apple R Vicente A Yarberry N Lohse E Mills A Jacobson D Poppendieck

UNLABELLED Over one-quarter of the world's population relies on fuel-based lighting. Kerosene lamps are often located in close proximity to users, potentially increasing the risk for respiratory illnesses and lung cancer. Particulate matter concentrations resulting from cook stoves have been extensively studied in the literature. However, characterization of particulate concentrations from fuel...

The photodegradation of Direct Blue 258, a member of the group of azo dyes which are commonly used in the various branches of the industry, was studied. The photostability of this dye was not previously surveyed. Photocatalytic degradation method was evaluated. The both light source include solar simulated (UV 400 W lamp) and sun light (E= 400 W/m2) and titanium dioxide nanoparticles were used ...

The photodegradation of Direct Blue 258, a member of the group of azo dyes which are commonly used in the various branches of the industry, was studied. The photostability of this dye was not previously surveyed. Photocatalytic degradation method was evaluated. The both light source include solar simulated (UV 400 W lamp) and sun light (E= 400 W/m2) and titanium dioxide nanoparticles were used ...

2010
John J. Cooley

This paper presents a retrofit system that exploits a fluorescent lamp’s own stray electric fields as an excitation source for capacitive sensing. The principal result of this work is the demonstration of sufficient sensitivity for detecting human occupants below the lamp. Experimental results are presented demonstrating detection ranges of 10 ft. between the lamp and the nearest edge of a huma...

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