The ECMA-368 standard specifies multiband orthogonal frequency division multiplexing (MB-OFDM) as the definitive technology for high rate ultra-wideband (UWB) communications. Like other wireless systems, the performance of a correct data signals detection and decoding in MB-OFDM UWB is reduced by narrowband interference (NBI). A more specific problem of severity arises when interferences are pr...

Our research target to a computer-aided diagnosis (CAD) system for colorectal endoscopic images with narrow band imaging (NBI) magnification, which identifies a pathology type from local feature in the NBI endoscopic image. We propose a high speed feature transformation for CAD system by using Manhattan distance calculation and on the fly normalization method. A high performance and low cost al...

The paper presents the 3D Fokker-Planck modelling results of the distribution function of energetic deuterons generated in ITER by 1MeV neutral beam injection. For two basic ITER scenarios we calculate the steady-state distributions of beam deuterons in the energy range 100 keV < E < 1 MeV and demonstrate the poloidal profiles of the beam deuteron density, of the NBI generated current as well a...

Aim. To compare narrowband imaging (NBI) and autofluorescence imaging (AFI) endoscopic visualization for identifying superficial esophageal squamous cell carcinoma (SCC). Methods. Twenty-four patients with superficial esophageal carcinomas diagnosed at previous hospitals were enrolled in this study. Lesions were initially detected using white-light endoscopy and then observed with both NBI and ...

BACKGROUND AND STUDY AIMS Although magnifying endoscopy with narrow-band imaging (M-NBI) is useful for the diagnosis of gastric mucosal lesions, differentiating between early cancer (EC) and low grade adenoma (LGA) remains a challenge. During M-NBI examination, we have noted the presence of a small, white lesion with a globular shape underneath cancerous gastric epithelium, and have termed this...

In this work we consider the performance of turbo coded OFDM systems in the presence of co-channel interference (CCI) in reuse-1 OFDM systems such as 802.16d/e and LTE. Because of frequency selectivity and diversity mapping, CCI does not affect all the subcarriers of the desired user. Hence CCI behaves like Narrow Band Interference(NBI) with the number of affected subcarriers ranging from 10% t...

Endoscopic submucosal dissection (ESD) has become the treatment of choice for early gastric cancer. Accurate identification of tumor borders is crucial for curative ESD. Narrow band imaging magnification endoscopy (NBI-ME) has been effectively used for assessment of superficial gastric lesions; however, international experience in type "0-IIb" gastric lesions is limited. Successful endoscopic t...

INTRODUCTION Narrow‑band imaging (NBI) is a new, promising technique that might be helpful in the detection of colorectal polyps during colonoscopy. OBJECTIVES The aim of the study was to compare the usefulness of NBI with white‑light endoscopy (WLE) for the detection of polyps as well as to determine the distribution of missed polyps. PATIENTS AND METHODS This was a randomized controlled t...

This paper investigates the application of pipelined recurrent neural networks (PRNN’s) to the narrow-band interference (NBI) suppression over spread-spectrum (SS) code-division multiple-access (CDMA) channels in the presence of additive white Gaussian noise (AWGN) plus non-Gaussian observation noise. Optimal detectors and receivers for such channels are no longer linear. A PRNN that consists o...