C-RECS （Creative Repository of Electro-Communications)
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"Peta-gogy" for Future : Popularization of Computer Science
Get PDF「情報I」の必履修化と大学入試での採用拡大により，コンピュータサイエンス（CS） に関係の深い内容をすべての高校生がきちんと学ぶようになりつつある．しかし，「プログラムは速さやコンパクトさよりまず分かりやすく書く」等のCSの知恵については，教育されていない．このような「教えられてほしいこと」として何があるか，またなぜ教える必要があるか，そのために何をすべきかを議論する．journal articl
Operation of RSFQ Hardware Random Number Generator Comprising Two Josephson Oscillators
Get PDFWe describe the operation of a rapid-single-flux-quantum (RSFQ) hardware random number generator comprising two Josephson oscillators, an XOR gate, and a non-destructive read-out (NDRO) cell. Single-flux-quantum (SFQ) pulse trains fed to the input terminals of the XOR gate contain timing jitters due to thermal noises. Then, the output of the XOR gate becomes random, which is stored in the NDRO cell and fetched by the trigger signal. We experimentally evaluated the output randomness of a test circuit fabricated using a 10 kA/cm2 Nb/AlOx/Nb integration process. For evaluation, the NIST FIPS 140-2 test suite was used. 24 random number sequences of 20 kb length were acquired with the trigger signal of 1 MHz, and evaluated for each operation condition. Relationships between the output randomness and operation conditions were obtained. In addition, numerical simulation demonstrated true random number generation at 20 GHz.journal articl
Development of Gravity Compensation Mechanisms for Coupled Tendon-Driven Robot Torsos
Get PDF電気通信大学博士（工学）2024doctoral thesi
