Temat: transformation ratio - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: CRM-203 Type Frequency Modulated Continuous Wave (FM CW) Radar
Autorzy:: Plata, M.
Wawruch, R.
Powiązania:: https://bibliotekanauki.pl/articles/117181.pdf
Data publikacji:: 2009
Wydawca:: Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:: radar
Frequency Modulated Continuous Wave (FMCW)
FMCW Radar
Mean Time Between Failure (MTBF)
signal processing
fast Fourier transformation (FFT)
Constant False Alarm Ratio (CFAR)
Automatic Identification System (AIS)
Opis:: Paper presents description of the principle of work, structure and basic technical parameters of the Maritime Coastal Surveillance Frequency Modulated Continuous Wave (FMCW) Radar CRM-203 type constructed by Telecommunication Research Institute Ltd. in Gda?sk. Results of its tests in real conditions and comparison with pulse ship radars with scanners installed in the same place will be presented during the conference.
Źródło:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2009, 3, 3; 311-314
2083-6473
2083-6481
Pojawia się w:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: A Better Estimator of Population Mean with Power Transformation Based on Ranked Set Sampling
Autorzy:: Mehta (Ranka), Nitu
Mandowara, V. L.
Powiązania:: https://bibliotekanauki.pl/articles/466002.pdf
Data publikacji:: 2012
Wydawca:: Główny Urząd Statystyczny
Tematy:: ranked set sampling
ratio estimator
power transformation estimator auxiliary variable
Opis:: Ranked set sampling (RSS) was first suggested by McIntyre (1952) to increase the efficiency of estimate of the population mean. It has been shown that this method is highly beneficial to the estimation based on simple random sampling (SRS). There has been considerable development and many modifications were done on this method. This paper presents a modified ratio estimator using prior value of coefficient of kurtosis of an auxiliary variable x, with the intention to improve the efficiency of ratio estimator in ranked set sampling. The first order approximation to the bias and mean square error (MSE) of the proposed estimator are obtained. A generalized version of the suggested estimator by applying the Power transformation is also presented.
Źródło:: Statistics in Transition new series; 2012, 13, 3; 551-558
1234-7655
Pojawia się w:: Statistics in Transition new series
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Minimization of active power losses in a power transmission system - selected aspects of the computation problem scope
Autorzy:: Wancerz, M
Kacejko, P.
Powiązania:: https://bibliotekanauki.pl/articles/97427.pdf
Data publikacji:: 2012
Wydawca:: Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:: power transmission system
generator
transformation ratio
Opis:: The paper presents fundamental problems concerning optimization of reactive power flow at simultaneous minimization of active power losses performed in order to enhance voltage conditions in a power system. Calculations have been done in order to show that adequate control of reactive power production in generators as well as proper transformation ratio control of system transformers can contribute to the reduction of active power losses in the system and ensure adequate voltage conditions in all system nodes.
Źródło:: Computer Applications in Electrical Engineering; 2012, 10; 254-263
1508-4248
Pojawia się w:: Computer Applications in Electrical Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Hydrocarbon generation modelling in the Permian and Triassic strata of the Polish Basin: implications for hydrocarbon potential assessment
Autorzy:: Botor, Dariusz
Powiązania:: https://bibliotekanauki.pl/articles/31342965.pdf
Data publikacji:: 2023
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: hydrocarbon potential
kerogen transformation ratio
thermal maturity modelling
Polish Basin
Permian
Triassic
Opis:: Hydrocarbon generation in the Zechstein Main Dolomite and Upper Triassic potential source rocks of the Polish Basin was investigated by 1-D thermal maturity modelling in 90 boreholes across the basin. This identified major zones potentially worthy of further exploration efforts. The maximum burial depth of the Zechstein Main Dolomite and Upper Triassic reached >5 km during the Late Cretaceous leading to maximum thermal maturity of organic matter. Hydrocarbon generation development reveals considerable differences between particular zones of the Zechstein Main Dolomite and Upper Triassic. The kerogen transformation ratio (TR) in the Zechstein Main Dolomite reached values approaching 100% along the basin axis. The TR in the Upper Triassic source rocks is generally lower than in the Zechstein Main Dolomite due to lesser burial. The Upper Triassic source rocks have the highest TR values (>50%) along the basin axis, in the area between boreholes Piła IG 1 and Piotrków Trybunalski IG 1, with the most pronounced zone in the Krośniewice Trough (i.e., between the Krośniewice IG 1 and Budziszewice IG 1 boreholes), where the TR reached >90%. The Zechstein Main Dolomite and Upper Triassic entered the oil window in the Late Triassic to Early–Middle Jurassic, respectively. Hydrocarbon generation continued until the Late Cretaceous, and was completed during tectonic inversion of the basin.
Źródło:: Geological Quarterly; 2023, 67, 2; art. no. 20
1641-7291
Pojawia się w:: Geological Quarterly
Dostawca treści:: Biblioteka Nauki

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