scholarly journals The Influence of Light Wave Length on Incidence of Bruises Occurring in the Broilers During the Growing period ,

1968 ◽  
Vol 47 (4) ◽  
pp. 1382-1383 ◽  
Author(s):  
Till M. Huston
Keyword(s):  
Light Wave ◽  
Wave Length ◽  
Growing Period

XIV.—The Absorption of Light by Inorganic Salts. No. XI.: Conclusion

1914 ◽  
Vol 33 ◽  
pp. 156-165
Author(s):  
R. A. Houstoun
Keyword(s):  
Special Reference ◽  
Present State ◽  
Light Wave ◽  
Wave Length ◽  
The Body ◽  
Inorganic Salts ◽  
Short Account ◽  
Absorption Of Light ◽  
Dispersion Of Light

In this paper a short account will be given of the present state of the theory of the absorption of light, with special reference to the results gained in this series of investigations.Theories of the dispersion of light may be divided into two classes: (1) those in which the body is regarded as consisting of particles which vibrate under the influence of the light wave; and (2) those in which the body is regarded as consisting of obstacles which diffract the light wave. According to (2), light is scattered, not absorbed; a wave going through the body diminishes in intensity, but the energy lost is radiated out laterally without change of wave-length.

scholarly journals INFLUENCE OF LIGHT WAVE LENGTH ON SENSITIVITY OF REFRACTOMETRIC DETECTOR FOR HPLC

2020 ◽  
Vol 30 (3) ◽  
pp. 19-28
Author(s):  
V. B. Khabarov ◽  
◽  
А. К. Buryak ◽  
Keyword(s):  
Light Wave ◽  
Wave Length

V.—The Absorption of X-Rays

1921 ◽  
Vol 40 ◽  
pp. 34-42
Author(s):  
R. A. Houstoun
Keyword(s):  
Light Wave ◽  
Average Rate ◽  
Wave Length ◽  
Homogeneous Medium ◽  
X Rays ◽  
Electric Intensity ◽  
The Mean ◽  
Image Position

§ 1. Let us suppose that a light wave is being propagated and absorbed in a homogeneous medium. Take OY as the direction of propagation, and consider a slice of the medium bounded by two planes at right angles to the direction of propagation and distant dy apart; dy is small in comparison with the wave-length. Let x=f(t) denote the mean displacement of the electrons, and let X = A cos gt denote the electric intensity of the light wave in the slice, measured in electrostatic units. Then the average rate at which work is being done on an electron is

scholarly journals Bio-Electric Potential under the Light Stimuli of Pholiota nameko. (Part 1). Relationship between the Bio-Electric Potential and the Light Wave Length.

1999 ◽  
Vol 11 (3) ◽  
pp. 209-213 ◽  
Author(s):  
Naoki TAKAHASHI ◽  
Junji HIRAMA ◽  
Toshio MIYAMOTO ◽  
Masakiyo HORIOKA ◽  
Norifumi HIROTA
Keyword(s):  
Electric Potential ◽  
Light Wave ◽  
Wave Length ◽  
Pholiota Nameko ◽  
Light Stimuli

scholarly journals Analysis of Cluster and Unrest Behaviors of Laying Hens Housed under Different Thermal Conditions and Light Wave Length

Animals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 2017
Author(s):  
Aline Mirella Fernandes ◽  
Diogo de Lucca Sartori ◽  
Flávio José de Oliveira Morais ◽  
Douglas D’Alessandro Salgado ◽  
Danilo Florentino Pereira
Keyword(s):  
Laying Hens ◽  
Thermal Environment ◽  
Light Wave ◽  
Wave Length ◽  
Red Light ◽  
Thermal Conditions ◽  
Behavioral Changes ◽  
Small Scale ◽  
Analysis Of The Images ◽  
Cluster Behavior

Laying hens are affected by the intensity, wavelength, and duration of light, and the behavioral patterns of these animals are important indicators of stress. The objective of the present study was to evaluate cluster and unrest behaviors of lying hens submitted to three environments with different treatments of monochromatic lighting (blue, green, and red). For 29 weeks, 60 laying hens from the Lohmann variety were divided into three groups and monitored by surveillance cameras installed on each shed ceiling and directed to the floor. Each group was housed in a small-scale shed and maintained under a monochromatic lighting treatment. The recordings were made at two times of the day, 15 min in the morning and 15 min in the afternoon, and the videos were processed, segmented, and analyzed computationally. From the analysis of the images, the cluster and unrest indexes were calculated. The results showed the influence of lighting on these behaviors, displaying that the birds were more agitated in the treatments with shorter wavelengths. Cluster behavior was higher in birds housed under red light. There was an interaction between the lighting treatments and the thermal environment, indicating that more studies should be carried out in this area to better understand these behavioral changes.

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