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Author: Michael Hislop
Publisher: Kavya Kishor International
ISBN:
Category :
Languages : en
Pages : 48
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Book Description
LUMINANCE - ISSUE 2 is the second issue of Luminance Magazine By Kavya Kishor International.
Author: Mariya A. Romanova
Publisher: Springer Science & Business Media
ISBN: 1468472038
Category : Science
Languages : en
Pages : 300
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Book Description
This book gives an account of a method of determining the type composition of sandy deposits from the air by the nature of their reflection of radiant energy. The measured spectral luminance of a rock outcrop rela ti ve to the luminance of a standard is the basic property considered in this method. The spectral luminance factors p\ are measured by means of special instruments - a universal photometer, cinespectrograph, spectro visors, and other spectrometers. The measured values of P" of the investigated rocks are interpreted geologically with the aid of some methods of mathematical statistics so that a means of lithological mapping of sandy deposits from the air can be found. The importance of developing a method of determining the type composition of rocks, primarily sandy de posits, from the air stems from the extensive occurrence of deserts on the earth's surface. Sandy deserts occupy vast areas in the southern latitudes of the USSR and occur in western and central China, Pakistan, Iran, India, and other states. In these deserts there are numerous deposits of petroleum and gas, and a search for water is continuously in progress. Successful prospecting for the above minerals depends on a determination of the material composition of the sandy deposits in these deserts and the solution of several questions of recent tec tonics, paleogeography, and quaternary geology, the answers to which might also be given by a study of the dis tribution of lithological types of sands.
Author: Mark F. Lewis
Publisher:
ISBN:
Category : Reaction time
Languages : en
Pages : 20
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Book Description
Author: Heinz Fischer
Publisher:
ISBN:
Category : Brightness temperature
Languages : en
Pages : 18
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Book Description
The emission of high-current microsecond-arc channels with a 1-mm gap has been studied in argon and helium by means of a 20-nsec Kerr-cell shutter and profiles of the relative luminance B determined from photographs of the arc image. The method is practically unaffected by instabilities in arc position, and the accuracy of relative luminance values has been perfected to a scatter smaller than plus or minus 5%. From maximum values of the 'saturation' luminance B* in the axis of the arc channel observed over a wide range of arc current altered by the gas pressure, a ratio of B*He/B*A = 1.52 for the two gases has been determined. The luminance profile across the arc channel demonstrates increasing opacity after saturation is reached. (Author).
Author: Richard D Gilson
Publisher:
ISBN:
Category : Nystagmus
Languages : en
Pages : 28
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Book Description
Loss of acuity for visual details in aircraft during unusual maneuvers has been documented. Recent investigations of this problem have served to define the magnitude of semicircular canal stimulation necessary to produce nystagmus of sufficient strength to degrade visual acuity. Present work extends former observations by investigating the effects of levels of illumination during semicircular canal stimulation on the performance of a task requiring vision. The illumination levels were selected to encompass the range used in aircraft cockpits. A compensatory tracking task with an aircraft instrument as the display provided an indirect measure of this loss of visual acuity and a direct practical measure of performance. (Author).
Author: Michael Hislop
Publisher: Kavya Kishor International
ISBN:
Category :
Languages : en
Pages : 48
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Book Description
LUMINANCE - ISSUE 2 is the second issue of Luminance Magazine By Kavya Kishor International.
Author: Daniel McMillan
Publisher: Vector11 Studio
ISBN:
Category : Fiction
Languages : en
Pages : 199
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Book Description
All good things must come to an end... Humanity is all but doomed. There is no way off the dying Earth unless William Clarke can complete the Teleportal, and it seems that every faction in the world has their sights set on acquiring the unfinished device. With their choices drastically limited and time running out, Baxter and the Sylvans must overcome not only the global geologic crisis that threatens to extinguish life on Earth, but also the newly formed android faction that seeks the elimination of humanity. As if things weren't bad enough already. There's an awful lot of backstabbing, bloodshed, and conflict going on - especially considering there isn't even going to be a planet to fight over for much longer.
Author: Mark F. Lewis
Publisher:
ISBN:
Category : Flight
Languages : en
Pages : 20
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 164
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Book Description
Popular Science gives our readers the information and tools to improve their technology and their world. The core belief that Popular Science and our readers share: The future is going to be better, and science and technology are the driving forces that will help make it better.
Author: Chris Woodhouse
Publisher: CRC Press
ISBN: 1317680154
Category : Computers
Languages : en
Pages : 289
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Book Description
The Astrophotography Manual is for those photographers who aspire to move beyond using standard SLR cameras and editing software, and who are ready to create beautiful images of nebulas, galaxies, clusters, and the solar system. Beginning with a brief astronomy primer, this book takes readers through the full astrophotography process, from choosing and using equipment through image capture, calibration, and processing. This combination of technical background information and the hands-on approach brings the science down to earth with a practical method to plan for success. Features include: Over 400 images, graphs, and tables to illustrate these concepts A wide range of hardware to be used, including smartphones, tablets, and the latest mount technologies How to utilize a variety of leading software such as Maxim DL, Nebulosity, Sequence Generator Pro, Photoshop, and PixInsight Case studies showing how and when to use certain tools and overcoming technical challenges How sensor performance and light pollution relate to image quality and exposure planning
Author: Joseph Lee Hardy
Publisher:
ISBN:
Category :
Languages : en
Pages : 324
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Book Description
