This paper demonstrates two improvements in coding techniques that could be used for memory word coding. First, within the fixed structure of a Hamming single-error-correcting, double-errordetecting (SEC/DED) code, an improvement can be obtained in circuit cost and operational speed over more conventional code implementations. Second, the mechanics of error correction in a fault-tolerant comput...

Vector rotation is the key operation employed extensively in many digital signal processing applications. In this paper, we introduce a new design concept called Angle Quantization (AQ). It can be used as a design index for vector rotational operation, where the rotational angle is known in advance. Based on the AQ process, we establish a unified design framework for cost-effective low-latency ...

A60-year-old woman was hospitalized for oliguria with bilateral impediment of both renal pelvises. Bilateral nephrostomies were necessary. Twelve months earlier, two titanium stents (Engineers & Doctors) had been implanted in the distal parts of both ureters because of diffuse ureteral stenosis after irradiation therapy for cervical carcinoma 17 years earlier. At admission, retrograde pyelograp...

We present the first micromachined rotational electret power generator, linearized theoretical model of electret power generation, and novel method to produce uniformly charged electret. We also improved our previously developed [ I , 21 thin film Teflon AF 1601-S electret technology with respect to dielectric thickness, charge uniformity, and processability. In demonstration, our prototype pow...

The speed of ultrasonic motor of piezo-electric type is usually measured using mechanical sensors such as pulse encoders. However, these sensors are costly and bulky. In this paper, a numerical speed estimation approach of a piezo-electric motor (PEM) is implemented using multilayer perception neural network (MLP-NN). The proposed model evaluates rotational speed and load torque based on the am...

Variable-speed, horizontal axis wind turbines use bladepitch control to meet specified objectives for three regions of operation. This paper focuses on controller design for the constant power production regime. A simple, rigid, non-linear turbine model was used to systematically perform trade-off studies between two performance metrics. Minimization of both the deviation of the rotor speed fro...