Responses of miracidia of Schistosomatium douthitti (Cort 1914) to monochromatic light

1972 ◽  
Vol 50 (2) ◽  
pp. 197-200 ◽  
Author(s):  
D. G. S. Wright ◽  
D. M. Lavigne ◽  
K. Ronald
Keyword(s):  
Energy Spectrum ◽  
Monochromatic Light ◽  
Equal Energy

When exposed to an equal energy spectrum (irradiance = 0.225 W/m2) from 450–650 nm miracidia of Schistosomatium douthitti exhibited a significant directed response to monochromatic light at 500 and 525 nm.

Responses of cercariae of Trichobilharzia ocellata to white light, monochromatic light, and irradiance reduction

1974 ◽  
Vol 52 (5) ◽  
pp. 575-579 ◽  
Author(s):  
D. G. S. Wright
Keyword(s):  
Energy Spectrum ◽  
White Light ◽  
Monochromatic Light ◽  
Light Irradiance ◽  
Equal Energy ◽  
Illuminance Level ◽  
Trichobilharzia Ocellata

Cercariae of Trichobilharzia ocellata exhibited a significant directed response to white light starting at an illuminance level of 0.35 lx. When exposed to an equal energy spectrum of monochromatic light (irradiance = 0.22 μW/cm2), the most significant directed response occurred at 500 nm. Swimming in response to illuminance reduction varies inversely as the preadaptation irradiance levels.

Responses of miracidia of Schistosoma mansoni to an equal energy spectrum of monochromatic light

1974 ◽  
Vol 52 (7) ◽  
pp. 857-859 ◽  
Author(s):  
D. G. S. Wright
Keyword(s):  
Energy Spectrum ◽  
Schistosoma Mansoni ◽  
Fresh Water ◽  
Monochromatic Light ◽  
Spectral Intensity ◽  
Percentage Composition ◽  
Light Irradiance ◽  
Equal Energy

An equal energy spectrum of monochromatic light (irradiance = 0.22 μW/cm2) caused miracidia of Schistosoma mansoni to respond maximally in a directed manner to wavelengths of 525 nm and 650 um. Miracidia of S. mansoni responded to wavelengths which make up the greatest percentage composition of spectral intensity in clear fresh water and muddy waters.

Instrumentation for detecting channelling radiation in the high-voltage electron microscope

1983 ◽  
Vol 41 ◽  
pp. 318-319
Author(s):  
J. H. Butler ◽  
C. J. Humphreys
Keyword(s):  
Monochromatic Light ◽  
Incident Beam ◽  
Laboratory Frame ◽  
Relativistic Electrons ◽  
Voltage Electron ◽  
Dipole Emission ◽  
Sinusoidal Oscillations ◽  
Pass Through ◽  
Incident Beam Energy ◽  
Increasing Function

Electromagnetic radiation is emitted when fast (relativistic) electrons pass through crystal targets which are oriented in a preferential (channelling) direction with respect to the incident beam. In the classical sense, the electrons perform sinusoidal oscillations as they propagate through the crystal (as illustrated in Fig. 1 for the case of planar channelling). When viewed in the electron rest frame, this motion, a result of successive Bragg reflections, gives rise to familiar dipole emission. In the laboratory frame, the radiation is seen to be of a higher energy (because of the Doppler shift) and is also compressed into a narrower cone of emission (due to the relativistic “searchlight” effect). The energy and yield of this monochromatic light is a continuously increasing function of the incident beam energy and, for beam energies of 1 MeV and higher, it occurs in the x-ray and γ-ray regions of the spectrum. Consequently, much interest has been expressed in regard to the use of this phenomenon as the basis for fabricating a coherent, tunable radiation source.

The electronic energy spectrum of zero-gap semiconductors

1976 ◽  
Vol 120 (11) ◽  
pp. 337 ◽  
Author(s):  
B.L. Gel'mont ◽  
V.I. Ivanov-Omskii ◽  
I.M. Tsidil'kovskii
Keyword(s):  
Energy Spectrum ◽  
Electronic Energy ◽  
Electronic Energy Spectrum

Acquisition and Evaluation of Gamma-ray Energy Spectrum with CsPbBr3

2019 ◽  
Author(s):  
Lei R. Cao ◽  
Lei Pan ◽  
Yuanxiang Feng ◽  
Praneeth Kandlakunta ◽  
Jinsong Huang
Keyword(s):  
Energy Spectrum ◽  
Gamma Ray

Energy Spectrum of Acoustic Emission Signals in Coupled Continuous Media

2019 ◽  
Vol 11 (3) ◽  
pp. 03028-1-03028-7 ◽  
Author(s):  
V. V. Marasanov ◽  
◽  
A. V. Sharko ◽  
A. A. Sharko ◽  
◽  
...  
Keyword(s):  
Acoustic Emission ◽  
Energy Spectrum ◽  
Continuous Media
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