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Start Over Coverage 191-196

1. Atmospheric turbulence influence on the range error and maximum range

Creator:
Siuzdak, J. and Kiełek, W.
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
atmospheric turbulence, range error, and maximum range
Language:
Czech
Description:
Atmospheric turbulence can be the source of some systematic and random range error, and of the decrease of maximum range measured. Formulas are collected for energy density decrease and for some of the errors, including systematic photon trajectory lenghts increase, not mentioned before according to authors knowledge.
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public

2. O fyzikálním výzkumu v ÚTEF ČVUT v Praze

Creator:
Pospíšil, Stanislav
Format:
print, bez média, and svazek
Type:
model:article and TEXT
Subject:
Pospíšil, Stanislav, 1942-, Štekl, Ivan, 1962-, České vysoké učení technické v Praze., Ústav technické a experimentální fyziky, technická fyzika, experimentální fyzika, aplikovaný výzkum, technical physics, experimental physics, applied research, 6, and 53
Language:
Czech
Description:
V příspěvku je uveden souhrn vědeckých programů a aktivit Ústavu technické a experimentální fyziky jako vědecko-pedagogického pracoviště ČVUT v Praze zaměřeného na experimentální fyziku mikrosvěta a její aplikace., Stanislav Pospíšil., and Obsahuje seznam literatury
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

3. The non-rotating origin: conceptual defitinition. Application to the rotation of the Earth

Creator:
Souchay, J.
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
observations, definition of U.T.1, and rotation of the Earth
Language:
Czech
Description:
The present definition of U.T.1 is a complex one which introduces the old concept of the ”Fictitious Mean Sun” which has been suggested by Newcomb (1895). The conventional right ascension of the Fictitious Mean Sun brings the basic relationship between Sidereal Time, arising directly from observations, and U.T.1, as it is internationally adopted. Unfortunately, this basic relationship needs some effort of understanding for the common user. It is the reason why B. Guinot (1979) proposed to adopt another point instead of the vernal equinox on the celestial equator, that he called the ‘non-rotating origin σ’. This point obeys to a clear kinematical concept. Moreover, it should bring a new conceptual definition of U.T.1 very easy to understand. The position of σ on the celestial sphere can be easily determined by the Eulerian angles ψ and θ which are positionning the instantaneous axis of rotation of the Earth relatively to an inertial plane of reference. It can also be realized by the way of a quantity 's’ depending on the only motion of the instantaneous equator. Formulation and developpement of ‘s’ are successively given.
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public