Jianqing Wang

Bio: Jianqing Wang is an academic researcher from Nagoya Institute of Technology. The author has contributed to research in topics: Ultra-wideband & Bit error rate. The author has an hindex of 29, co-authored 238 publications receiving 3096 citations. Previous affiliations of Jianqing Wang include Tohoku University & Korea Maritime and Ocean University.

Impact of Electrostatic Discharge on Wearable Robotic Hand and Improvement of Immunity Performance by Wireless Control

Abstract: Myoelectric artificial hand is a typical wearable robotic hand operated by motors based on detected myoelectric signals. A wired connection between the myoelectric signal detector and motor controller is currently the mainstream, but the wireless control is expected for convenience. In this study, focusing on a myoelectric artificial hand, we performed electrostatic dischargeimmunity tests based on IEC61000-4-2 to clarify the mechanism of malfunction with respect to electrostatic discharge noise. Using an optical electric field sensor, we investigated the correlation between the peak level, time duration, and energy of electric field generated by electrostatic discharge and the malfunction rate of myoelectric artificial hand. The measurement results showed that the malfunction of myoelectric artificial hand was strongly correlated with the peak electric field level, and the primary coupling location of electrostatic discharge noise on the myoelectric artificial hand was the wires between the myoelectric signal detector and the motor controller. Based on these findings, we developed a wireless myoelectric artificial hand to remove the above-mentioned wires and to increase the convenience. As a result, compared to the wired control, the wireless myoelectric artificial hand exhibited a much higher immunity level for the electrostatic discharge noise. This is because the wires that were experimentally identified to pick up noise were replaced by a wireless link where a wideband modulation scheme resistant to electrostatic discharge type impulse noise was adopted.

Performance analysis of diversity effect for in-body to on-body wireless UWB link

Abstract: The objective of this study is to perform a quantitative performance analysis of diversity effect for in-body to on-body ultra wideband (UWB) transmission for capsule endoscope UWB technology has a potential to provide real-time image transmission from inside to outside of human body owing to its inherent features However, it suffers from large attenuation together with shadowing in human tissues In view of this distinctive property, a diversity scheme is expected to provide an effective improvement on this wireless link performance Based on finite-difference time-domain (FDTD) numerically-derived in-body to on-body characteristics, we derive probability density function (PDF) for combined communication channels with two different approximation methods and compare their accuracy at first Then we calculate average bit error rate (BER) with pulse position modulation (PPM) and on-off keying (OOK) modulation scheme to clarify the possible diversity effect

Statistical measurement of electromagnetic noise characteristics of indirect ESD in wireless frequency bands

Abstract: Wireless body area networks (BANs) are attracting much attention to healthcare and medical applications. Electrostatic discharge (ESD) may be a major electromagnetic (EM) noise source to interfere the wireless communication performance. In this study, we measured EM noise power at 2.4 GHz and 30 MHz bands for indirect ESD immunity testing according to the IEC 61000-4-2 standard, and derived a statistical ESD noise model based on the measurement results. The ESD noise power was found to follow lognormal distribution.

Principles of Neural Science

Abstract: I have developed "tennis elbow" from lugging this book around the past four weeks, but it is worth the pain, the effort, and the aspirin. It is also worth the (relatively speaking) bargain price. Including appendixes, this book contains 894 pages of text. The entire panorama of the neural sciences is surveyed and examined, and it is comprehensive in its scope, from genomes to social behaviors. The editors explicitly state that the book is designed as "an introductory text for students of biology, behavior, and medicine," but it is hard to imagine any audience, interested in any fragment of neuroscience at any level of sophistication, that would not enjoy this book. The editors have done a masterful job of weaving together the biologic, the behavioral, and the clinical sciences into a single tapestry in which everyone from the molecular biologist to the practicing psychiatrist can find and appreciate his or

IEEE Standard for Local and Metropolitan Area Networks Part 16: Air Interface for Fixed Broadband Wireless Access Systems Draft Amendment: Management Information Base Extensions

Abstract: This document provides updates to IEEE Std 802.16's MIB for the MAC, PHY and asso- ciated management procedures in order to accommodate recent extensions to the standard.

The Virtual Family—development of surface-based anatomical models of two adults and two children for dosimetric simulations

Abstract: The objective of this study was to develop anatomically correct whole body human models of an adult male (34 years old), an adult female (26 years old) and two children (an 11-year-old girl and a six-year-old boy) for the optimized evaluation of electromagnetic exposure. These four models are referred to as the Virtual Family. They are based on high resolution magnetic resonance (MR) images of healthy volunteers. More than 80 different tissue types were distinguished during the segmentation. To improve the accuracy and the effectiveness of the segmentation, a novel semi-automated tool was used to analyze and segment the data. All tissues and organs were reconstructed as three-dimensional (3D) unstructured triangulated surface objects, yielding high precision images of individual features of the body. This greatly enhances the meshing flexibility and the accuracy with respect to thin tissue layers and small organs in comparison with the traditional voxel-based representation of anatomical models. Conformal computational techniques were also applied. The techniques and tools developed in this study can be used to more effectively develop future models and further improve the accuracy of the models for various applications. For research purposes, the four models are provided for free to the scientific community.