Low Level Light Intensity Measurement from Repetitive Signals†

1966 ◽  
Vol 20 (6) ◽  
pp. 525-533 ◽  
Author(s):  
E. E. L. MITCHELL ◽  
W. E. AUSTIN ◽  
J. D. CRAGGS
Keyword(s):  
Light Intensity ◽  
Intensity Measurement ◽  
Low Level

Interactions of Light, Temperature and Moisture on Terbutryn Toxicity

Weed Science ◽  
1971 ◽  
Vol 19 (6) ◽  
pp. 732-735 ◽  
Author(s):  
L. D. Houseworth ◽  
B. G. Tweedy
Keyword(s):  
Light Intensity ◽  
Cucumis Sativus ◽  
Environmental Conditions ◽  
Rapid Growth ◽  
Field Capacity ◽  
Moisture Level ◽  
Low Level ◽  
High Level

Toxicity of soil-applied 2-(tert-butylamino)-4-(ethylamino)-6-(methylthio)-s-triazine (terbutryn) to cucumbers (Cucumis sativusL. ‘Gemni’) and oats (Avena sativusL. ‘Nodaway’) was increased 2.2 times when the light intensity was raised from 11,000 to 22,000 lumens/m2and 1.5 times when the moisture level was raised from low (25 to 50% field capacity) to high (75 to 100% field capacity). When the temperature was raised from the low level (19 C day, 14 C night) to the high level (29 C day, 24 C night) toxicity of terbutryn to oats was increased 1.6 times and toxicity to cucumber was increased 1.3 times. Analysis of interactions of the three variables on toxicity of terbutryn showed that environmental conditions favoring rapid growth resulted in an increase in phytotoxicity.

Arc flash light intensity measurement system design

2015 ◽  
Author(s):  
Wei-Jen Lee ◽  
Zhenyuan Zhang ◽  
Shiuan-Hau Rau ◽  
Tammy Gammon ◽  
Ben Johnson ◽  
...  
Keyword(s):  
Light Intensity ◽  
System Design ◽  
Measurement System ◽  
Intensity Measurement ◽  
Arc Flash

Effect of Low-Level Boron Doping on Transport Properties of a-Si:H and a-SiGe:H Alloys

1989 ◽  
Vol 149 ◽  
Author(s):  
Liyou Yang ◽  
A. Catalano ◽  
R. R. Arya ◽  
M. S. Bennett ◽  
I. Balberg
Keyword(s):  
Light Intensity ◽  
Transport Properties ◽  
Diffusion Length ◽  
Boron Doping ◽  
Ambipolar Diffusion ◽  
Doping Effect ◽  
Intensity Dependence ◽  
Low Level

ABSTRACTLarge simultaneous changes in ambipolar diffusion length and d.c. photoconductivity are observed with boron doping below 5ppm. We show that the observation can be explained successfully with a model for the doping effect, which is also consistent with earlier studies. The μτ products for both carriers as a function of doping are determined. The light intensity dependence of diffusion length and photoconductivity is also discussed.

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