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Many kinds of abstract machine have been proposed for executing byte codes of functional languages, such as Landin's SECD machine and Curien's Categorical Abstract Machine, which have been studied for decades from a theoretical viewpoint and applied in the implementation of functional language processors. In this paper, we propose the Simple Abstract Machine (SAM), a simplified SECD machine. The simplification...
We have developed compact 12-channel, on-board optical transmitters and receivers. The assembly size was 9 mm ?? 14 mm. Error-free transmission up to 20 Gb/s/ch was achieved, which will enable us to construct a high density optical interconnect.
In this paper, we examined a modeling method for a vibration analysis in order to estimate the electromagnetic vibration of a stator case due to the resonance phenomenon between the natural frequency and the electromagnetic force. The resonance phenomenon can be verified on the analysis result as well as on the measurement result by setting the measured mechanical characteristics. We found it was...
This paper describes an impact of a flux weakening current to an iron loss which includes a modulation index effect and PWM carrier effect. 1.5 kW IPMSM was selected as a test machine, the measured iron loss are analyzed and compared with the simulation results which are obtained by a coupled simulation between FEA and circuit simulator. Interesting results are shown in this paper such that the iron...
20 nm-node planer MONOS NAND Flash memory is developed for the first time. Excellent performances such as fast program speed are realized without using FinFET structure. Furthermore, potential of tight Vth distribution is confirmed using 50 nm-node cells. These properties indicate that planer MONOS cell technology developed in this work can be one of candidates for multi-level NAND Flash memory with...
Human learns incidents by own actions and reflects them on the subsequent action as own experiences. These experiences are memorized in his brain and recollected if necessary. This research incorporates such an intelligent information processing mechanism, and applies it to an autonomous agent that has three main functions: learning, memorization and associative recollection. In the proposed system,...
Outlier detection, a data mining technique to detect rare events, deviant objects, and exceptions from data, has drawn increasing attention in recent years. Much existing research targets record data constructed with numerical attributes or a set of points having numeric values. However, very few studies have attempted to detect outliers from data having items. We focus on transaction data and propose...
Pulsed power generators with repetition rates on the order of MHz have been developed by using semiconductor opening switch (SOS), static induction thyristor (SIThy), and silicon carbide junction field-effect-transistor (SiC-JFET). A compact SOS circuit based on inductive energy storage has been developed. It uses semiconductor switches for forward and reverse current control of the SOS diodes, instead...
A spatial light phase modulator with a high transmission> 85% (260??1100 nm) and a phase modulation capability of 53 radian at 260 urn and 12 radian at 1100 nm has been developed for the first time.
A spatial light phase modulator with a high transmission> 85% (260-1100 nm) and a phase modulation capability of 53 radian at 260 nm and 12 radian at 1100 nm has been developed for the first time.
As we face huge amounts of varied information, data mining, which helps us discover hidden features or rules from voluminous data systematically, has become more important [3, 4, 6, 10]. However, real world data is often dirty, including noise such as missing or irrelevant values. The information mined from such noisy data may be incorrect. We model noisy data with probabilities, assuming that noise...
A novel evaluation technique for RoHS-related hazardous substances has been developed. Using this technique, we can nondestructively find out electronic components and circuit board assemblies which contain the prohibited lead and/or cadmium. This technique enables us to evaluate the hazardous substances in these products for adapting RoHS directive with high efficiency
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