نتایج جستجو برای: ku and ka band
تعداد نتایج: 16850046 فیلتر نتایج به سال:
1Member of JSCE, M. Eng., Ocean Engineering Study Program, Faculty of Engineering, Hasanuddin University (Jl. P. Kemerdekaan km. 10, Makassar 90245, Indonesia) 2Member of JSCE, M. Eng., Graduate School of Engineering, Tohoku University (6-6-11-1110 Aoba Aramaki Aoba-ku, Sendai 980-8579, Japan) 3Fellow of JSCE, Professor, Graduate School of Engineering, Tohoku University (6-6-11-1110 Aoba Aramak...
H.S.Egawa , T.Hotta , T.Izubuchi b N.Tsuda c and T.Yukawa c, d a Department of Physics, Tokai University Hiratsuka, Kanagawa 259-12, Japan b Department of Physics, University of Tokyo Bunkyo-ku, Tokyo 113, Japan c National Laboratory for High Energy Physics (KEK), Tsukuba 305, Japan d Coordination Center for Research and Education, The Graduate University for Advanced Studies, Hayama-cho, Miura...
*Korea Advanced Institute of Science and Technology, **Hyundai Information Technology, Co., Ltd., ***Hyundai Engineering and Construction, Co., Ltd. *Dept. of MIS, 207-43, Cheongryang, Seoul 130-012, Korea. ** Technology Support Division, 140-2, Kye-dong, Chongro-ku, Seoul, Korea. ***Construction Management Dept., 140-2, Kye-dong, Chongro-ku, Seoul, Korea. *{leekj, jklee}@msd.kaist.ac.kr, **kim...
Statistics for atmospheric-noise-temperature data at a 31.4-GHz frequency were calculated for the Madrid and Goldstone Deep Space Communications Complexes from the data collected by the water vapor radiometer. These data consist of 74 months of measurements at Madrid and 46 months of measurements at Goldstone. The statistics then were used to optimize a deep-space 32-GHz (Ka-band) link at each ...
We report the 238U-23øTh agederived from samples from three basalt flows from the Albuquerque Volcanoes Field, central New Mexico (USA), interpreted to have erupted during one of the Bruhnes Chron geomagnetic field polarity events. Whole-rock samples and magnetite separates from two of the samples define an isochron with an age of 156 + 29 ka (2o). It is now possible to determine the ages of ge...
Using simultaneous S and Ka band observations it is possible to retrieve a path integrated value of the water vapor content as well as cloud liquid water content values using the atmospheric and liquid water attenuation properties at the two frequencies. Recently the NCAR S-band dual polarimetric (S-Pol) radar has been upgraded to include simultaneous Ka-band radar measurements (Farquharson et ...
In this paper, a SIW horn antenna is designed using Luneburg lens in order to enhance the gain. Using a transition printed on the same substrate, both the matching performance and the front to back ratio was improved. In addition, this transition structure allows the antenna to be planar. The proposed antenna operates at 14.5 GHz and can be used for Ku band application.An antenna prototype was ...
Let R(Ka,b, Kc,d) be the minimum number n so that any n-vertex simple undirected graph G contains a Ka,b or its complement G′ contains a Kc,d. We demonstrate constructions showing that R(K2,b, K2,d) > b + d + 1 for d ≥ b ≥ 2. We establish lower bounds for R(Ka,b, Ka,b) and R(Ka,b, Kc,d) using probabilistic methods. We define R′(a, b, c) to be the minimum number n such that any n-vertex 3-unifor...
Department of Environmental Life Sciences, Graduate School of Life Sciences, Tohoku University, Aoba-ku, Sendai 980–8577, Japan (M.I., J.H.); Department of Applied Plant Science, Graduate School of Agricultural Sciences, Tohoku University, Aoba-ku, Sendai 981–8555, Japan (A.M, H.I.); and Core Research for Evolutional Science and Technology, Japan Science and Technology Agency, Chiyoda-ku, Tokyo...
1Department of Intelligent Mechanical Engineering, Faculty of Engineering, Kinki University, 1, Takaya-Umenobe, Higashihiroshima, Hiroshima 739-2116, Japan 2Vehicle Development Division, Vehicle System Development Department, Mazda Motor Corporation, 3-1, Shinchi, Aki-Fuchu, Hiroshima 730-8670, Japan 3Department of Intelligent Mechanical Systems, Graduate School of Natural Science and Technolog...
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