Computer simulation of the photodetection process in optical range finding

1986 ◽  
Vol 29 (2) ◽  
pp. 106-108
Author(s):  
S. A. Maksimtsev
2017 ◽  
Vol 68 (8) ◽  
pp. 30-37
Author(s):  
A.V. Medvedev ◽  
A.V. Grinkevich ◽  
S.N. Knyazeva
Keyword(s):  

1990 ◽  
Author(s):  
Paul R. Weckler ◽  
Glenn A. Kranzler

1987 ◽  
Author(s):  
J. T. Atkinson ◽  
M. J. Lalor

2016 ◽  
Vol 41 (22) ◽  
pp. 5154 ◽  
Author(s):  
Sangwoo Park ◽  
Jinbeum Jang ◽  
Sangkeun Lee ◽  
Joonki Paik

2003 ◽  
Vol 96 (3) ◽  
pp. 166-168
Author(s):  
Paul M. Cuicchi ◽  
Paul S. Hutchison

Simple range-finding and height-finding devices that use the properties of similar triangles are common. For example, foresters use these devices to measure the heights of trees, and some golfers use them to measure the distance from ball to hole, although such devices are illegal in competitive golf. Simple optical range-finding golf scopes are inexpensive and are reasonably accurate.


1994 ◽  
Vol 33 (31) ◽  
pp. 7511 ◽  
Author(s):  
Anatol N. Golubev ◽  
Alexander M. Chekhovsky
Keyword(s):  

Author(s):  
Kiyomichi Nakai ◽  
Yusuke Isobe ◽  
Chiken Kinoshita ◽  
Kazutoshi Shinohara

Induced spinodal decomposition under electron irradiation in a Ni-Au alloy has been investigated with respect to its basic mechanism and confirmed to be caused by the relaxation of coherent strain associated with modulated structure. Modulation of white-dots on structure images of modulated structure due to high-resolution electron microscopy is reduced with irradiation. In this paper the atom arrangement of the modulated structure is confirmed with computer simulation on the structure images, and the relaxation of the coherent strain is concluded to be due to the reduction of phase-modulation.Structure images of three-dimensional modulated structure along <100> were taken with the JEM-4000EX high-resolution electron microscope at the HVEM Laboratory, Kyushu University. The transmitted beam and four 200 reflections with their satellites from the modulated structure in an fee Ni-30.0at%Au alloy under illumination of 400keV electrons were used for the structure images under a condition of the spherical aberration constant of the objective lens, Cs = 1mm, the divergence of the beam, α = 3 × 10-4 rad, underfocus, Δf ≃ -50nm and specimen thickness, t ≃ 15nm. The CIHRTEM code was used for the simulation of the structure image.


2019 ◽  
Vol 3 (6) ◽  
pp. 723-729
Author(s):  
Roslyn Gleadow ◽  
Jim Hanan ◽  
Alan Dorin

Food security and the sustainability of native ecosystems depends on plant-insect interactions in countless ways. Recently reported rapid and immense declines in insect numbers due to climate change, the use of pesticides and herbicides, the introduction of agricultural monocultures, and the destruction of insect native habitat, are all potential contributors to this grave situation. Some researchers are working towards a future where natural insect pollinators might be replaced with free-flying robotic bees, an ecologically problematic proposal. We argue instead that creating environments that are friendly to bees and exploring the use of other species for pollination and bio-control, particularly in non-European countries, are more ecologically sound approaches. The computer simulation of insect-plant interactions is a far more measured application of technology that may assist in managing, or averting, ‘Insect Armageddon' from both practical and ethical viewpoints.


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