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This paper is concerned with an algorithm for generating inhomogeneous random rough surface (RRS) that can simulate physical environments such as desert, vegetation ground, sea surface and others, better than homogeneous RRS. First, we discuss statistics of RRS and the direct DFT method which can generate RRS with an arbitrary types of spectrum. Second, we review the essence of the convolution method...
The dependence of the interface-trap-induced scattering on the electron kinetic energy (epsivele) in nMOSFETs is investigated experimentally. The procedure to extract the accurate epsivele dependence of the interface-trap-induced scattering relationship is developed based on the careful Hall effect measurements. As a result, it is demonstrated that as epsivele increases, the interface-trap-induced...
Three bits per cell NAND Flash Memory Technology for 30 nm and beyond has been successfully developed with floating gate technology. Tight natural Vth distribution, wide program/erase window, and good cell reliability such as program disturb, endurance and data retention are obtained. 8 level Vth distributions are successfully demonstrated.
In this paper, we develop a method to realize an autonomous periodic motion of a small blimp system in a horizontal plane. The idea behind the method is to make the dynamics of a small blimp system approach asymptotically to that of the van der Pol equation that has a limit cycle. The method consists of the following two steps: First, we introduce two constraints. One has a role to connect the motion...
The "water tree" is a degradation mode of power cable with polymer insulation. A water tree is composed of small droplets filled with water. As the conductivity in water tree is very high, it leads to dielectric breakdown when it grows up. Inside the water tree is filled with trap sites. Therefore, a water tree can be recognized as an electret.
In this paper dual problems, which we shall call output and input variance constrained H2/H∞, controls, are considered. In these problems, we seek control-laws that minimize an H2 performance criterion subject to an H∞ performance bound as well as multiple variance constraints on either outputs or inputs of time-invariant multivariable systems. Based on the investigation of Kuhn Tucker optimality...
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