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407 results on '"Fujita, Goro"'

107. Noise Factors in Detection of Minute Marks by Domain Wall Displacement

Author

Kaneko, Masahiko, Yoshimura, Sunji, Fujita, Goro, and Kobayashi, Seiji

Subjects
Electromechanical devices -- Dynamics, Business, Electronics, Electronics and electrical industries
Abstract

Causes of data errors by DWDD and dominant noise factors which determine the density are discussed. Dropout of data mainly occurs during readout by domain wall displacement at mark length less than 110 nm. The bit shift causes serious data error when window width is shorter than 70 nm. A novel method has been introduced to analyze the jitter by reading the signal many times for the same area and by averaging the waveform. The space-dependent jitter obtained by averaging is 8.8 nm and is greater than the time-dependent jitter of 6.7 nm caused by the shot noise, the laser noise, and the system noise as well as caused by the fluctuation of the domain wall displacement. Comparison with the ordinary structured MO media has revealed that a bit length of 77 nm will be available when the space-dependent jitter is reduced to 3.8 nm which is the value for ordinary structured media. Index Terms--Bit shift, dropout, DWDD, jitter, media noise.

Published
2000

126. 東京慈恵会医科大学附属病院でのNST（Nutrition Support Team）活動 (第131回成医会総会一般演題)

Author

Fukushi, Asako, Watanabe Yuko, Hama, Hironobu, Chiba, Yoshie, Ito, Keisuke, Nakajima, Tomo, Fujita, Goro, Maeda, Keiko, Umeki, Tae, Someya, Noriko, Akiyama, Hiroyuki, Sakuma, Sumiyo, Ohkido, Ichiro, Yokoo, Takashi, Ishikawa, Tomohisa, Nishikawa, Katsunori, Tooyama, Yoichi, Kawasaki, Naruo, Tanaka, Yujiro, Eto, Seiichiro, and Yanaga, Katsuhiko

Abstract

article

Published
2014

127. Crime linkage of sex offences in Japan by multiple correspondence analysis.

Author

Yokota, Kaeko, Watanabe, Kazumi, Wachi, Taeko, Otsuka, Yusuke, Hirama, Kazuki, and Fujita, Goro

Subjects
SEX crimes, MULTIPLE correspondence analysis (Statistics), SEX offenders, SEX crime investigation, SEX crime lawsuits
Abstract

This study examined the effectiveness of multiple correspondence analysis (MCA) for linking crimes. The data consisted of 720 incidents committed by 360 individual offenders of serial criminal sexual contact cases (i.e., rape and forced indecency). According to themeasured similarity obtained from the Euclidean distance in theMCA configuration, a rank-score was assigned to each linked pair and unlinked pair. The validity of MCA for linking crimes was evaluated with a 10-fold cross-validation procedure and a receiver operating characteristic analysis. The t-test of rank scores showed a statistically significant difference between linked pairs and unlinked pairs (t(641.43) = -18.53, p < .001, d = 1.38). The value of the area under the receiver operating characteristic curve was .83 (95% CI = .80-.86), indicating a high level of discriminative accuracy in distinguishing offences committed by the same person from those committed by different persons. [ABSTRACT FROM AUTHOR]

Published
2017
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