The possibility of non-contact determination of Hall current structure in the thruster is considered in order to use this information for operational processes diagnostics during flight. The scheme of the diagnostics and the algorithm for experimental data processing are developed. Using the MHD equations, an example of interpretation of hypothetical malfunction based on data on the Hall curren...

OBJECTIVE The authors aimed to develop a mechanical model for delivering controlled impact injuries to an articular cartilage surface, with the ability to control peak contact pressure while maintaining a constant rate of loading across all impact levels. METHODS A pendulum-style impactor with a direct contact interface was fabricated, based on previously published successful models. This imp...

Local electrochemical impedance spectroscopy (LEIS), which provides a powerful tool for exploration of electrode heterogeneity, has its roots in the development of electrochemical techniques employing scanning of microelectrodes. The historical development of local impedance spectroscopy measurements is reviewed, and guidelines are presented for implementation of LEIS. The factors which control...

In this paper, we propose a simple and relative electrode contact monitoring method. By exploiting the power line interference, which is regarded as one of the worst noise sources for bio-potential measurement, the relative difference in electrode impedance can be measured without a current or voltage source. Substantial benefits, including no extra circuit components, no degradation of the bod...

—Pneumatic muscles (PMs)-driven robots become more and more popular in medical and rehabilitation field as the actuators are intrinsically complaint and thus are safer for patients than traditional rigid robots. This paper proposes a new compliance adaptation method of a soft ankle rehabilitation robot that is driven by four pneumatic muscles enabling three rotational movement degrees of freedo...

Antennas for hand-held communication devices are necessarily small, and typically use wavelengths λ that are large compared to the size of the antenna. This typically implies that the magnitude of the antenna reactance X (= imaginary part of the antenna impedance) is large compared to that of its radiation resistance Rrad (which is related to the time-average radiated power P and the peak curre...

This paper describes a new method for measuring the tonguepalatal contact pressure using a thin pressure sensor and its application for speech research. The new pressure sensor is composed of thin pressure sensitive ink whose electrical resistance is proportional to the physical forces applied to the sensor. Several sensors were arranged on the surface of the palatal plate. This setup was used ...

The work presented on this paper has been derived from previous work around the area of ne motion assembly planning. However, the method that we present can be applied to solve diierent robot motion planning problems. The robustness of the trajectories produced by a robot motion planner depends on both, the models used to represent the uncertainty, and the strategies used to deal with it. A rob...