A credible reconstruction of a continuous two-dimensional earth surface potential distribution from a discrete set of noisy samples is essential for correct identification of regions with high values of touch and step voltages, as a part of grounding grid safety assessment procedure. This research provides some new and useful insights on the earth surface potential distribution reconstruction quality, focused mainly on the most commonly used radial basis function (RBF) interpolation kernels. The RBF approach to reconstruction was chosen because of the underlaying algorithm simplicity and the fact that it provides natural mathematical framework for smooth interpolation and approximation of potential fields from irregular sampling sets. Since the quality of potential distribution reconstruction is heavily influenced by the choice of interpolation method, sampling layout and a priori knowledge of the grounding grid structure under test, this research also elaborates some heuristic guidelines for planning proper sampling procedure and illustrates some examples of reconstructed functional shape distortions due to poor sampling layouts.

The present paper describes a novel application of a well known Build-In-Self-Test (BIST) method in order to evaluate the operational condition of a certain type of sensors which are widely used in environmental monitoring instruments (especially in water quality monitoring). It is actually an automated evaluation procedure of the operating conditions of electrochemical sensors (mainly dissolve oxygen and pH sensors for on-line monitoring of water). Such self-validation procedures increase the operating life and the reliability of a sensor, and extend the time-between calibrations or replacements of chemical consumables (electrolyte). The proposed technique is mostly suitable for stand-alone monitoring systems (such as data-loggers or remote stations) which operate continuously in the field of environmental monitoring of water ecosystems (on-line monitoring). This work uses a microcontroller measuring scheme in order to implement the above functionalities and proposes a measuring circuit (that is also described) which is needed to implement such “intelligent features”.

The present paper sets out an intelligent instrument for a quantitative measurement of air quality, consisting of a some gas sensors, each of them being embedded into a adaptation module, an data processing and acquisition module provided with a microcontroller and a decision making, display and alarm system. An electronic nose composed of a high-sensitivity and low selectivity micro-sensors array, a data measurement, transmittal and normalization system and an intelligent decision making system is presented of an example of a qualitative assessment in air quality monitoring.

The robot plays active part in the product field and the humanoid robot is intended to enter into our human life in near future. When the humanoid robot may enter into our daily life, the various problems are occurred and must be solved. One of the most important problems is how to moves like human and how to work like human. In this research, the human walking motions are measured using motion capture system and the simulation of the robot walking motion is carried out using the results of the motion capture measurements. It was confirmed that the humanoid biped robot can walk like the human walking from the experimental results.

Knowledge of the short-circuit impedance variation is necessary for verifying the observance of the technical conditions (including the design conditions), certain nonconformities in the winding execution, checking the winding behavior in operation, verifying the system and short-circuit calculation (including the correct protection setup), the loading of the same type units, or more importantly, of the different type ones. The measurement of the short-circuit impedance by means of a three phase low voltage power source can be performed because the value of impedances does not depend on the applied voltage. ICEMENERG has developed a modern measurement system that has been used for performing a great amount of measurements, the results of which have been compared with those of the manufacturer’s, and with those obtained by means of high voltage measurements.