著者
岩田 隆浩 南野 浩之 佐々木 健 小川 美奈 並木 則行 花田 英夫 野田 寛大 松本 晃治 今村 剛 石原 吉明 鶴田 誠逸 浅利 一善 劉 慶会 菊池 冬彦 Goossens Sander 石川 利昭 河野 宣之 高野 忠
出版者
The Geodetic Society of Japan
雑誌
測地学会誌 (ISSN:00380830)
巻号頁・発行日
vol.55, no.2, pp.135-150, 2009-07-25
被引用文献数
10

SELENE Main Orbiter (KAGUYA) has separated two small sub-satellites; (1) the Relay Satellite "OKINA (Rstar)", and (2) the VLBI Radio Satellite "OUNA (Vstar)". These sub-satellites started to perform 4-way Doppler measurements using Relay Satellite Transponder (RSAT) and multi-frequency phase-delay differential VLBI using VLBI Radio Sources (VRAD) for lunar gravity mapping. We have developed the frequency conversion system, multi frequency S/X-band vertical dipole antenna, and light weighted S-band patch antenna to perform these missions. Simple structured release mechanism has also been developed and confirmed its performance by ground test and orbital demonstration using micro-Lab Sat.<BR> Initial check out were executed and properties of satellite bus equipments, onboard mission instruments, and observation systems including ground stations were evaluated. Electric power and thermal control subsystems have shown that they conduct as designed and inspected in the ground tests. The release mechanisms have given the spin which can maintain the stability of the satellite attitudes. Communication functions of mission instruments conform to the link budgets. These results suggest that OKINA and OUNA have enough performances to produce efficient data by RSAT/VRAD gravity observations.
著者
小川 美奈恵 森本 康彦 北澤 武 宮寺 庸造
出版者
日本教育工学会
雑誌
日本教育工学会論文誌 (ISSN:13498290)
巻号頁・発行日
vol.40, no.4, pp.265-275, 2017-02-20 (Released:2017-03-23)
参考文献数
28
被引用文献数
1

本研究の目的は,ICT活用指導力の向上のための学習モデルを開発することである.教育の情報化の進展に伴い,求められているICT活用指導力の向上のために,多様なICT活用について気づきを与えられる「間違い探し」動画教材の作成と閲覧による学習モデルを開発し,その効果を明らかにするために,教員養成課程に在籍する学生と,教職大学院の現職教員に対して実践,評価を行った.評価の結果,「間違い探し」動画教材作成・閲覧前後でICT活用に関するマインドマップの有意な上昇,ICT活用指導力チェックリストの領域Bの全項目で得点の有意な上昇が認められた.また,自由記述から,教員養成課程の学生における「間違い探し」動画教材作成・閲覧だけでなく,現職教員においても「間違い探し」動画教材の閲覧を行うことで,客観的に指導について考察でき,ICT活用に関する知識を身につけさせることが可能であることが示唆された.
著者
岩田 隆浩 南野 浩之 佐々木 健 小川 美奈 並木 則行 花田 英夫 野田 寛大 松本 晃治 今村 剛 石原 吉明 鶴田 誠逸 浅利 一善 劉 慶会 菊池 冬彦 Goossens Sander 石川 利昭 河野 宣之 高野 忠
出版者
日本測地学会
雑誌
測地学会誌 (ISSN:00380830)
巻号頁・発行日
vol.55, no.2, pp.135-150, 2009 (Released:2012-03-28)
参考文献数
16

SELENE Main Orbiter (KAGUYA) has separated two small sub-satellites; (1) the Relay Satellite “OKINA (Rstar)”, and (2) the VLBI Radio Satellite “OUNA (Vstar)”. These sub-satellites started to perform 4-way Doppler measurements using Relay Satellite Transponder (RSAT) and multi-frequency phase-delay differential VLBI using VLBI Radio Sources (VRAD) for lunar gravity mapping. We have developed the frequency conversion system, multi frequency S/X-band vertical dipole antenna, and light weighted S-band patch antenna to perform these missions. Simple structured release mechanism has also been developed and confirmed its performance by ground test and orbital demonstration using micro-Lab Sat. Initial check out were executed and properties of satellite bus equipments, onboard mission instruments, and observation systems including ground stations were evaluated. Electric power and thermal control subsystems have shown that they conduct as designed and inspected in the ground tests. The release mechanisms have given the spin which can maintain the stability of the satellite attitudes. Communication functions of mission instruments conform to the link budgets. These results suggest that OKINA and OUNA have enough performances to produce efficient data by RSAT/VRAD gravity observations.