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Body area networks will require antennas that can efficiently support the implanted systems wireless communication. This paper proposes the design, characterisation and simulation of probe implanted antenna for body wireless communication. It shows that a length of stripline and/or a frequency selective service (FSS) could be used in order to enhance the performance of the implanted antenna. This...
The facial system plays an important role in human-robot interaction. EveR-4 H33 is a head system for an android face controlled by thirty-three motors. It consists of three layers: a mechanical layer, an inner cover layer and an outer cover layer. Motors are attached under the skin and some motors are correlated with each other. Some expressions cannot be shown by moving just one motor. In addition,...
Enabling robots to safely interact with humans is an essential goal of robotics research. The developments achieved over the last years in mechanical design and control made it possible to have active cooperation between humans and robots in rather complex situations. In these terms, safe behavior of the robot even under worst-case situations is crucial and forms also a basis for higher level decisional...
The mosquito proboscis is composed of seven micro parts. Among them, labrum and maxillae play important roles in insertion. The labrum is a central needle which sucks blood; two maxillae are left/right needles aside the labrum, respectively. They cooperatively move, i.e., one maxilla goes forward, labrum goes forward, another maxilla goes forward, successively. We noticed that the maxilla has a jagged...
Contact with energized parts at different potentials may cause the circulation of body current and the possible inception of the ventricular fibrillation, which is generally considered the most life-threatening effect imposed on the cardiac muscle. The heart-current factors currently present in international standard have been determined thanks to measurements on cadavers, as well as experiments with...
In this paper, we review our recent research on technologies for enhancing body-conducted speech detected with nonaudible murmur (NAM) microphone. NAM microphone has been developed to detect an extremely soft whispered voice, which is useful for silent speech communication. Moreover, it is also capable of detecting other voices such as a soft voice and a normal voice while effectively reducing external...
The idea of an FES is to stimulate the contraction of paralyzed muscles by inducing electrical pulses. Recent studies have demonstrated that the intervention of Functional Electrical Stimulation (FES) have improved patients with paralyzed muscle injuries. Unfortunately, due to the high cost of an FES device, rehabilitation centers in local hospitals are not equipped with FES devices. Generally, an...
The purpose of this study was to use frequency spectrum analysis to determine the effects of skin and muscle on the bone's low frequency vibration signals recorded from vibration sensors placed on the skin. A setup was developed that allowed low frequency vibration signals to be recorded. Tests were performed on a sample of 8 turkey legs in vitro, using four vibration sensors placed on the skin, muscle...
Recently, electromagnetic interference (EMI) of an implanted cardiac pacemaker with a mobile radio terminal has been investigated [1]-[3]. Based on these studies, national authorities have recommended that a mobile radio terminal should keep 22 cm from the pacemaker in Japan [4].
We are developing a passive power assist supporter called Smart Suit Lite. Smart Suit Lite is a compact and lightweight power assist device that utilizes the elastic force of elastic belts. To design the Smart Suit Lite, we developed a motion-based assist method and an extended musculoskeletal model. The motion-based assist method was used to design the arrangements and properties of the elastic belts...
The goal of this research is to develop a face robot with a new facial expression mechanism using a small number of actuators. Many designs of face robots have been investigated and published in the past. Most face robots can generate a variety of expressions by moving a large number of control points underneath the artificial skin. The number of control points is usually larger than 10, and each...
Various approaches have been utilized in the overall study of facial expressions. And while the results of such research have been reported, little is known about the actual mechanism of how facial expressions are formed. Ishida et al. studied the facial expression of drowsiness. In their study, they discovered that contraction of the frontal is muscle raises the eyebrows when a person is sleepy....
This case study demonstrates the ability of sensory cortical representations to remap following arm amputation and subsequent targeted reinnervation (TR). Previous human studies have demonstrated functional plasticity in the primary sensory cortex months or years after amputation of the upper arm, forearm, the hand or a single finger, or after subsequent replantation. Targeted reinnervation, a surgical...
Biomedical industry is in continuous growth in the last few years. This paper presents new compact printed antennas for medical applications. Low profile compact antennas are useful in the development of human biomedical systems. Design considerations, computational results and measured results of several wideband microstrip antennas with high efficiency for medical applications are presented in this...
In dexterous robotic manipulation it is essential to control the force exerted by the robot hands while grasping. This paper describes a method by which robot hands can be controlled on the basis of previous experience of slippage of objects held by the hand. We developed an anthropomorphic human scale robot hand equipped with an elastic skin in which two types of sensors are randomly embedded. One...
The known 3-layered model of a human body (skin-fat-muscle) is applied to estimate maximum distances feasible for the communication between two in-vivo miniature electronic devices. It is notable that dimensions of these implants are assumed not to extend the thickness of the human fat layer. The effect of guided wave propagation in the selected 3-layered model is investigated and the gain coming...
An articulated character skinning usually requires manual skeleton embedding and vertex weight painting. We propose a fast and automatic method for skeleton generation and character skinning. First, we segment the given character mesh by the sequential steps of NCV(normal characteristic value) computation, segment points refinement, and principal component analysis of segment clusters. Then, two types...
State of the art biological imaging methods, such as confocal microscopy, create 3D volumes by sampling on a cartesian grid. This cartesian coordinate system is often not convenient for visualization and analysis of multi layered organs or tissues. The ascidian embryonic tail, for example, is organized along anterioposterior (AP), dorsoventral (DV) and left-right (LR) axes that are locally orthogonal...
Through experimentation and analyses of apple peeling, we examined the implicit knowledge necessary to perform study support for exercise and performance. A pressure sensor, an eye-mark recorder, a miniature wireless camera, and a surface electromyography were used to assess actions of 10 examinees (6 men, 4 women) during an experiment, which revealed three main differences between experts and non-experts:...
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