Search Results - "Kasuga, Takashi"

Natural capital evaluation in the FutureCity of Shimokawa, Northern Japan, based on forest economics by Hojo, Ai, Tsuji, Nobuyuki, Kasuga, Takashi, Osaki, Mitsuru

“…We have pragmatically but accurately evaluated the natural capital of a small northern town, Shimokawa, Hokkaido, Japan. The key industries are forestry, wood…”
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Caravan-Submm, Black Hole Imager in the Andes by Takahashi, Rohta, Saida, Hiromi, Takefuji, Kazuhiro, Sekido, Mamoru, Oka, Tomoharu, Iba, Jose K. Ishitsuka, Kasuga, Takashi, Miyoshi, Makoto, Takahashi, Masaaki

“…Imaging a black hole horizon as a shadow at the center of black hole accretion disk is another method to prove/check Einstein’s general relativity at strong…”
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Basic Study on a Novel FDTD Method Implemented Frequecy Dispersion of PCB by Kitazawa, Taiki, Kitahara, Ren, Yamagiwa, Taiki, Chakarothai, Jerdvisanop, Hayashi, Yuichi, Kasuga, Takashi

“…Signal transmission degrades significantly in GHz band due to loss of substrates, which is generally frequency-dependent. In this paper, the purpose is to…”
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Septum Polarizer for Ka-Band H-Shaped Rotary Joint by Kaiden, Masahiro, Kimura, Kimihiro, Ogawa, Hideo, Kasuga, Takashi, Tsuboi, Masato, Murata, Yasuhiro

“…We propose an H-shaped rotary joint that uses septum polarizers. We designed a new polarizer using three-dimensional electromagnetic-field analysis software…”
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A Novel FDTD Approach Considering Frequency Dispersion of FR-4 Substrates for Signal Transmission Analyses at GHz Band by Kitazawa, Taiki, Yamagiwa, Taiki, Kitahara, Ren, Kim, Youngwoo, Chakarothai, Jerdvisanop, Hayashi, Yuichi, Kasuga, Takashi

“…High-speed digital signaling can cause various signal integrity and electromagnetic interference problems. Signal attenuation and distortion can be observed in…”
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Ka-band cryogenic low-noise receiver of the Misasa 54 m antenna for deep-space communications and radio astronomy by Tsuboi, Masato, Hasegawa, Yutaka, Tabuchi, Go, Murata, Yasuhiro, Yuchi, Koji, Toda, Tomoaki, Uchimura, Takashi, Kimura, Kimihiro, Kasuga, Takashi

“…Abstract We built a Ka-band dual-circular-polarization low-noise receiver for the Misasa 54 m parabola antenna in Misasa, Japan. The antenna is designed to be…”
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Sunyaev-Zel’dovich Effect toward Distant Galaxy Clusters at 43 GHz; Observation and Data by Tsuboi, Masato, Miyazaki, Atsushi, Kasuga, Takashi, Kuno, Nario, Sakamoto, Akihiro, Matsuo, Hiroshi

“…We have observed the Sunyaev–Zel’dovich (SZ) effect on eight X-ray bright galaxy clusters from $z = 0.18$ to 0.55 at 43 GHz using a newly developed 6-beam…”
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A Millimeter Polarimeter for the 45-m Telescope at Nobeyama by Shinnaga, Hiroko, Tsuboi, Masato, Kasuga, Takashi

“…We have designed and constructed a tunable polarimeter to cover frequencies from 35 GHz to 250 GHz (8.6 mm and 1.2 mm in wavelength) for the 45-m telescope at…”
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Delopement of mutimode horns and wideband feed for radio telescopes by Ujihara, Hideki, Kimura, Kimihiro, Matsumoto, Kouhei, Ogawa, Hideo, Ohno, Takeshi, Tsuboi, Masato, Kasuga, Takashi, Homma, Mareki, Kawaguchi, Noriyukii

“…Multimode horns were developed for 8.4GHz, 22GHz, 43GHz receiver systems of ASTRO-G/VSOP-2 satellite for Space-VLBI, and for 6.7GHz of VERA 20m radio…”
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A molecular gas bar fuelling starburst activity in galaxy IC342 by Ishizuki, Sumio, Kawabe, Ryohei, Ishiguro, Masato, Okumura, Sachiko K, Morita, Koh-Ichiro, Chikada, Yoshihiro, Kasuga, Takashi

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Time and Frequency Domains Evaluation of Crosstalk on Differential Lines with Meander Structure by Akatsuka, Yuki, Kitazawa, Taiki, Hayashi, Yuichi, Kasuga, Takashi

“…The meander structures in printed circuit boards (PCBs) are designed to compensate for signal skew in differential transmission lines. They introduce…”
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Time and Frequency Domain Evaluation Method of Current Noise on the Power Line connected Multiple LED Bulbs by Kasuga, Takashi, Hotta, Syuhei, Komori, Akihiro, Takagi, Souta, Inoue, Hiroshi

“…The electromagnetic noise generated from the inverter circuit in the LED lighting unit has become a problem influencing to the communication system. The…”
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A novel method of stabilizing frequency-modulated microwave for coherent transient spectroscopy by MINOWA, T, MATSUO, Y, KASUGA, T, SHIMIZU, T

“…A method of stabilizing the microwave frequency modulated for the observation of transient molecular responses has been developed. Good long-term stability of…”
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Novel FDTD simulation method using multiple-analysis-space for electromagnetic far field by Kasuga, T., Inoue, H.

“…Wide-band undesired electromagnetic noise near electronic systems, which includes small noise source like the printed circuit board (PCB), is a current problem…”
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A Study on Suppression of Crosstalk between Parallel Transmission Lines at High Frequency Band by Kasuga, T., Inoue, H.

“…As the parallel transmission line is used in the high frequency range, it is necessary that the far end crosstalk between transmission lines (TLs) is…”
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The VLBI Space Observatory Programme and the Radio-Astronomical Satellite HALCA by Hirabayashi, Hisashi, Hirosawa, Haruto, Kobayashi, Hideyuki, Murata, Yasuhiro, Asaki, Yoshiharu, Avruch, Ian M., Edwards, Philip G., Fomalont, Edward B., Ichikawa, Tsutomu, Kii, Tsuneo, Okayasu, Rikako, Wajima, Kiyoaki, Inoue, Makoto, Kawaguchi, Noriyuki, Chikada, Yoshihiro, Bushimata, Takeshi, Fujisawa, Kenta, Horiuchi, Shinji, Kameno, Seiji, Miyaji, Takeshi, Shibata, Kazunori M., Shen, Zhi-Qiang, Umemoto, Tomofumi, Kasuga, Takashi, Nakajima, Jun'ichi, Takahashi, Yukio, Enome, Shinzou, Morimoto, Masaki, Ellis, Jordan, Meier, David L., Murphy, David W., Preston, Robert A., Smith, Joel G., Wietfeldt, Rick D., Benson, John M., Claussen, Mark J., Flatters, Chris, Moellenbrock, George A., Romney, Jonathan D., Ulvestad, James S., Langston, Glen I., Minter, Anthony H., D'Addario, Larry R., Dewdney, Peter E., Dougherty, Sean M., Jauncey, David L., Lovell, James E. J., Tingay, Steven J., Tzioumis, Anastasios K., Taylor, A. Russell, Cannon, Wayne H., Gurvits, Leonid I., Schilizzi, Richard T., Booth, Roy S., Popov, Misha V.

“…The radio astronomy satellite HALCA was launched by the Institute of Space and Astronautical Science in 1997 February to participate in Very Long Baseline…”
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A Study on FDTD Analysis Method of Differential Lines Including Dielectric Loss at GHz Band by Yamagiwa, Taiki, Tomioka, Masahiro, Kitahara, Ren, Nakamura, Atsushi, Kayano, Yoshiki, Kasuga, Takashi

“…In order to process the large amount data, the a few GHz band signal is used on the printed circuit board (PCB). The glass epoxy (Flame Retardant Type 4: FR-4)…”
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Sea gravity measurement in the Antarctic Research Expedition by Takashi Kasuga, Katsutada Kaminuma, Jiro Segawa

“…Sea gravity measurements on board the icebreaker FUJI during the 22nd Japanese Antarctic Research Expedition conducted from November 1980 to April 1981 were…”
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Angular Momentum Effect in Nonthermal Populations of Rotational States of OH Split from Hydrogen Peroxide by Horie, Tadao, Kasuga, Takashi

“…It has previously been shown by experiments with a crossed-beam technique that the rotational energy distribution of OH*(2Σ+) split from H2O2 is remarkably…”
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Erratum: SiO Maser Survey in the Galactic Center Region with a Multi-Beam Receiver by Miyazaki, Atsushi, Deguchi, Shuji, Tsuboi, Masato, Kasuga, Takashi, Takano, Shuro

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