著者
野澤 昭雄 内田 雅文 永峰 康司 井出 英人
出版者
一般社団法人 電気学会
雑誌
電気学会論文誌C(電子・情報・システム部門誌) (ISSN:03854221)
巻号頁・発行日
vol.124, no.9, pp.1795-1796, 2004 (Released:2004-12-01)
参考文献数
4
被引用文献数
3 2

Emergent emotions under gustatory stimuli was quantitatively evaluated with the facial skin thermogram. The nasal skin temperature was correlated with the subjective emotional status measured by the visual analogue scale. Transition to unpleasant status was inhibited with sweet gastatory stimulus.
著者
柴田 正志 高橋 雅和
出版者
一般社団法人 電気学会
雑誌
電気学会論文誌C(電子・情報・システム部門誌) (ISSN:03854221)
巻号頁・発行日
vol.140, no.10, pp.1127-1133, 2020-10-01 (Released:2020-10-01)
参考文献数
26

In this paper, we propose an efficient method of technical structure analysis of FPGA development using network analysis. Recently, with the reform of the industrial structure called “Industry 4.0” and the explosive expansion of the application area of AI (Artificial Intelligence), the demand for computing power in edge devices is increasing. For these backgrounds, the acceleration by FPGA is focused on the industry. Hence, in this paper, we analyze the technology development trends of a significant FPGA supplier. As analytical data, we employ patents obtained by the company in the U.S. We focus on the classifiers in the patent information. We create graphs by classifiers and analyze their clusters. From the results of extracting graph features by the proposed method, key technology areas and their transitions are revealed in the technology development of FPGA suppliers.
著者
桝井 昇一 手塚 耕一 佐々木 和雄
出版者
一般社団法人 電気学会
雑誌
電気学会誌 (ISSN:13405551)
巻号頁・発行日
vol.140, no.7, pp.436-439, 2020-07-01 (Released:2020-07-01)
参考文献数
5
被引用文献数
1

1.はじめに富士通(株)は,国際体操連盟・日本体操協会との連携により,体操競技における正確かつ公平な採点の実現を目指して,採点支援技術の開発に取り組んでいる。採点支援技術は,LiDAR(Light Detection and Ranging)方式の3Dレーザセンサによって取得された3次元点群から,Deep
著者
谷本 洋 永井 信夫
出版者
一般社団法人 電気学会
雑誌
平成29年電気学会電子・情報・システム部門大会講演論文集, C部門
巻号頁・発行日
pp.1321-1326, 2017-09-06

線形回路において正弦波定常状態を扱う場合,その電圧・電流は2次元実ベクトル空間のベクトルと考えられることはよく知られている.一方,交流理論では電圧・電流を複素数(フェーザ)として取り扱い,これらがベクトルであるとの認識が薄い.そのため,特に複素電力における無効電力の物理的意味づけがわかり難くなっている.本報告では電圧と電流をベクトルと考えて,電力をこれらの双一次形式と捉えることにより,複素電力の物理的な理解が深まり,電力には有効電力と無効電力以外の成分も存在することを示した.
著者
島袋 雄一 具志 翔太朗 又吉 淳二 比嘉 広樹
出版者
一般社団法人 電気学会
雑誌
電気学会論文誌C(電子・情報・システム部門誌) (ISSN:03854221)
巻号頁・発行日
vol.140, no.9, pp.1040-1049, 2020
被引用文献数
2

<p>In order to help people with disabilities of the upper extremities drink and eat, a simulator for self-feeding assistive robotic arm using solving method of inverse kinematics has been developed in this paper. Using inverse kinematics equations of 7 degrees of freedom (DOF) with an arm angle parameter, the robotic arm model was implemented in the simulator and its controller with mouse device was also designed. The arm angle parameter defined the angle between the arm plane and a reference plane was used to resolve the robotic arm redundancy. Three able-bodied persons participated in simulation experiments. They manipulated the robotic arm model in a virtual space using mouse device. It was found from the simulation results they successfully performed the drinking and eating tasks in our simulator.</p>
著者
岡本 光央 染谷 満 平井 悠久
出版者
一般社団法人 電気学会
雑誌
電気学会誌 (ISSN:13405551)
巻号頁・発行日
vol.140, no.9, pp.572-575, 2020-09-01 (Released:2020-09-01)
参考文献数
2

1.はじめに茨城県つくば市つくばエクスプレス研究学園駅の駅前にガラス張りの未来的なビルが建っている(図1)。筑波大学大学院教授であり,サイバニクス研究センター創立者である山海嘉之氏
著者
西田 武弘 藤原 康文 山本 和久 小泉 淳 八木 哲哉
出版者
一般社団法人 電気学会
雑誌
電気学会論文誌C(電子・情報・システム部門誌) (ISSN:03854221)
巻号頁・発行日
vol.140, no.2, pp.181-186, 2020-02-01 (Released:2020-02-01)
参考文献数
31

Speckle reduction method for laser diode based displays was newly proposed. The method was based on temporal change of the active layer temperature which could be controlled by optimizing the driving condition of the laser diode under pulse. The red LD consisted of AlGaInP has low thermal conductivity and small energy difference between the active layer and the cladding one in the conduction band, resulting in the large temporal change of the lasing spectrum under the adequate driving condition in pulse. It indicates the speckle contrast could be controlled by changing the condition. The speckle contrast dependence on the driving condition of the high-power 638-nm lateral single mode laser diode was experimentally studied. In the experiment, not only the conventional square waveform but also the saw one were used. The speckle contrast under the adequate conditions for both waveforms was reduced approximately 25% compared with that under CW. In particular, the saw one might be expected as a very robust driving condition for the speckle reduction. This can be used with other speckle reduction method such as moving screen, moving diffuser and so on. In this sense, the newly proposal may be the speckle reduction method for “last one mile”.
著者
佐倉 衛 澤田 賢治 金子 修 新 誠一 松田 功
出版者
一般社団法人 電気学会
雑誌
電気学会論文誌C(電子・情報・システム部門誌) (ISSN:03854221)
巻号頁・発行日
vol.140, no.9, pp.1064-1073, 2020-09-01 (Released:2020-09-01)
参考文献数
19

In model-based development in the automotive industry, functional tests are performed using models made by CAE tools. The model needs to reproduce some physical properties of the target system correctly. The previous research of the current authors proposes energy balanced based verification (EBBV) that verifies the correctness of the model focused on the energy conservation law. EBBV confirms the balance of input and output energy of the model from output information of the model. In this paper, we develop three tools to automate EBBV processes. Also, we make a modeling guideline suitable for EBBV, which is composed of tagging and a hierarchical model structure. Through numerical experiments, we check that three tools automate EBBV processes for models according to the modeling guideline. The target model of the experiments is a mild hybrid electric vehicle model made by MATLAB/Simulink, MapleSim, and CarMaker.