نتایج جستجو برای: ultra ideal

تعداد نتایج: 144109  

2014
Aric Sanders Anna Fox Paul Dresselhaus Alexandra Curtin

Superconducting electronics play an important role in quantum computation, ultra-low-power electronics, voltage standards and magnetic sensors. Many of these applications rely on the microfabrication of superconducting circuits with multiple wiring layers and a range of active elements. The performance of these superconducting circuits are directly related to the three-dimensional microstructur...

2001
Bo Tian Wim van Etten Wim Beuwer

Abstract: An optical header replacement technology based on Self Electro-optic Effect Devices (SEEDs) is presented. By using the measurement result of a 75 μm long SEED device, we simulate an 8 Gbps throughput is achievable. Based on the switching characteristics of SEEDs, we proposed several methods to improve the SEEDs switching speed. An ultra fast switching speed at 50 Gbps is achievable by...

2008
Earl Zastrow Susan C. Hagness Barry D. Van Veen

We investigate the feasibility of non-invasive ultra-wideband microwave hyperthermia treatment of breast cancer using three-dimensional (3-D) breast phantoms with anatomical and dielectric-properties realism. Space-time transmit beamforming is used to generate the signals transmitted by a hemispherical antenna array into the breast. The performance of this approach is evaluated for beamformers ...

2005
C. C. Fulton G. Lucovsky Y. Zhang Y. Zou R. J. Nemanich H. Ade J. L. Whitten

X-ray absorption spectroscopy and vacuum ultra-violet spectroscopic ellipsometry are used to study the electronic structure of complex oxides comprised of mixed TM/TM and TM/RE oxides. Experimental spectra for HfTiO4 and Gd(Dy)ScO3 indicate multiple d-state features in the O K1 edge. These are compared with the empirical models for atomic d-state mixing. It is concluded that a mean field, virtu...

2011
Zhexin Xu Lin Wang Kyung Sup Kwak Guanrong Chen

Designing a non-ideal delay line (DL) with phase distortion in a transmitted-reference ultra-wideband system (TR-UWB) with an autocorrelation receiver (AcR) is a great technical challenge. Differing from the currently empirical design method of DL, in this paper a semi-analytic approach is proposed through Gaussian approximation of the expression for conditional bit error rate (BER), based on i...

2007
Laurent Bonnasse-Gahot Jean-Pierre Nadal

Exploiting the analogy between exemplar models and population coding schemes, we characterize, by means of information theoretic tools, the efficiency of a large but finite population of cells coding for a discrete set of categories (e.g. vowels). The optimal code is shown to typically allocate more cells to class boundaries than to regions further apart. We then discuss the predicted perceptua...

Journal: :Des. Codes Cryptography 2014
Soon Sheng Ong Frédérique E. Oggier

We consider the problem of designing reliable and confidential lattice codes, known as wiretap lattice codes, for fast fading channels. We identify as code design criterion for finite lattice constellations a finite sum of inverse of algebraic norms, in fact the analogous for finite sums of the known criterion for infinite constellations, which motivates us to study totally real number fields w...

Journal: :The Keio journal of medicine 1977
S Kawakami C Ishiwata K Hayashi Y Kawaguchi N Kondo

Pregnancy and delivery is one of the main causes in the female body weight alteration, especially with obesity. This alteration in body weight has a significant effect not only for a femine beauty standpoint, but also for more important reproductive functions in postpartum. For the actual condition of the maternal body weight alteration and its clinical significance, we made the various analysi...

2012
M. Morgado P. Oliveira C. Silvestre

This paper presents a data classification algorithm able to detect corrupted measurements as outliers, with application to underwater ultra-short baseline (USBL) acoustic positioning systems. The devised framework is based on causal median filters that are readily implementable, and a set of theoretical analysis tools that allows for the design of the filter parameters is also presented. The de...

2008
P. Musumeci M. S. Gutierrez J. T. Moody C. M. Scoby J. B. Rosenzweig T. Tran

Recently, a scheme for producing ideal uniformly filled ellipsoidal beam distributions, which depends on the strong longitudinal expansion of an initially very short beam under its own space charge forces, has been demonstrated at the UCLA Pegasus Laboratory. Here we present further work on the characterization of this novel regime of operation of a photoinjector. In particular we study the sen...

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