نتایج جستجو برای: stations

تعداد نتایج: 33474  

1998
A. L. Garrett T. G. Macdonald D. L. Noneaker M. B. Pursley J. M. Shea

Mobile cellular CDMA networks for tactical applications require mobile base stations in order to provide communications on the moue. Because of the mobility of the base stations, power balancing among the transmitters at different base stations is more dificult than in commercial cellular CDMA systems. Handoff of mobiles among base stations is also more difficult, primarily due to the mobility ...

2007
Sang-Yeob Lee

This paper investigates the nature of competition in the retail gasoline market using a two year panel data of weekly prices for gas stations in San Diego county. The primary dimension of product differentiation in the retail gasoline market is spatial in the sense that a gas station’s market power depends on the locations of all other gas stations. In contrast to previous empirical studies, I ...

Journal: :Transactions of the American Institute of Electrical Engineers 1917

Journal: :Boletim Goiano de Geografia 2011

Journal: :International Journal of Heritage Architecture: Studies, Repairs and Maintence 2017

2002

The Global Network of Isotopes in Precipitation consisted of 153 active stations in 2001. As can be seen in the map above, active stations are classified as " IAEA " or " National Network " (NN). The " IAEA " stations are those where national institutes are performing the monthly sampling, compiling the meteorological parameters and shipping samples to the IAEA for isotope analyses. The " Natio...

2015
Y. Q. Wang X. Y. Zhang J. Y. Sun X. C. Zhang H. Z. Che Y. Li

Concentrations of PM10, PM2.5 and PM1 were monitored at 24 CAWNET (China Atmosphere Watch Network) stations from 2006 to 2014. The highest particulate matter (PM) concentrations were observed at the stations of Xian, Zhengzhou and Gucheng, on the Guanzhong Plain and the Huabei Plain (HBP). The second highest PM concentrations were observed in northeast China, followed by southern China. Accordi...

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