Petsis, Christos

The invention relates to a method for an automated profiling of speech responses in mapping and rehabilitation of speech based on the following steps consisting of- performing automatically and fast with minimal human operator effort & intervention;- extracting, quantifying, evaluating and assessing the subject's speech and/or its characteristics such as accuracy, quantification of diversions or adherence or conformance to the demanded task, namely errors, semantics, lexical, pragmatics, phonetics, timings, sequential characteristics, of the response) in relation to the offered visual, auditory, olfactory, tactile, vibratory, motional template and demanded task;- performing classification, clustering and modeling of the content and signal characteristics of the sequences of events in the subject responses, producing appropriate utterance's and speaker's profiles;- augmenting the analysis of the latter step by an appropriate feedback from previous utterance's/speaker's profiles, which are formed by accumulation of previous analyses or beforehand knowledge;- maximizing and optimizing the acquired subject or population profile information through an adaptive coordination of the process; by means ofa set of proposed operations consisting of- the Collection of subject responses, along with a variety of additional data;- the Removal of any unwanted signals that may be mixed with the subject speech;- the Performance of phonetical, phonological, lexical, semantic, and pragmatic NLP along/or after the speech's content recognition;- the Performance of intelligent and adaptive coordination of execution flow and selection of the task/paradigm's presentation and interventional parameters;- the Building of a system that is structured to be trainable and supervisable, esp. that recurrently accumulates, analyses and makes decisions upon its inputs and outputs, and thus constitutes an intelligent system.

The invention is a device for the controlled placement, cultivation, exposure and permeability evaluation of ex vivo epithelial tissues for diagnostic or research purposes. The device consists of an upper (Figures 4-6) and a lower (Figures 1-4) part, which are assembled with the tissue and with each other. The resulting arrangement has a triple utility in one device. Firstly, tissue insertion and culture can be done in an oriented and controlled manner at an air-liquid interface condition. Secondly, the device accommodates spatially controlled exposure of the tissue to exogenous factors that come into contact only with the epithelial side of the tissue and allows the assessment of the under evaluation substances' effect towards the tissue. Finally, without changing the setup, tissue permeability can be tested. The device allows the evaluation of small epithelial tissue sections, less than 5 millimeters in diameter, and they can be placed in 24-well culture plates.

Zusammenfassung wird geladen …

The invention concerns an ultra-sensitive and accurate electrical impedance spectroscopy technique for the detection and characterization of bubbles in liquids that is required in numerous industrial processes as well as in the human's blood circulation during Decompression Sickness. The method is based on measuring non-invasively the electrical impedance variation of two-phase mixtures: liquid as conductive phase, resp. gas as non-conductive phase, applying an AC excitation signal of the proper frequency value identified by preliminary frequency scanning. The system takes advantage of innovative signal acquisition (hardware) device, and digital signal processing (software) methods and manages to detect accurately for the first time even the presence of a few bubbles corresponding to extremely low volumetric gas fraction values, up to < 0,1%. Also, the high measurement sensitivity of 0,001% in conjunction with advanced signal processing provides valuable qualitative and quantitative information on bubble size characteristics and allows for correlating bubble size to the spectral content of acquired signals.

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …