Article list

(Investigators: A. Krakovská, M. Chvosteková, J. Jakubík) Causal analysis of large volumes of measured data is becoming a hot topic of research. Existing techniques have been shown to be insufficient and their non-critical use often leads to completely incorrect conclusions. We have been working intensively on this topic for several years. We test existing methods…

Investigator: I. Bajla Biologically inspired hierarchical temporal memory (HTM) is one of the successful deep intelligent networks. However, its disadvantage is that it cannot be used directly to solve the detection and recognition of objects in multi-object color images of a complex scene. The basic goal of our research was to find a way to…

Investigators: A. Cigáň, A. Dvurečenskij, M. Škrátek, M. Majerová, J. Maňka Ionic liquids – liquids composed only of ions, have unique physicochemical properties, such as high thermal and chemical stability, the ability to dissolve various substances and negligible vapor pressure. These properties presuppose their use for the development of new technologies for the production of…

(Investigators: M. Hain, J. Bartl, V. Jacko) The results of the grant project APVV-14-0719 “Physical non-destructive methods for complex testing and analysis of cultural heritage artifacts” were used in cooperation with restorers in the physical survey of twenty-four Gothic altar panel paintings of the main altar of the Church of St. Juraj in Spišská Sobota…

Non-invasive preoperative localization of the site of premature ventricular activation can significantly shorten the time and increase the success of ablation therapy. A method was proposed to locate the lesion by solving the inverse problem of electrocardiography as finding the position of the dipole representing the onset of ectopic activation. The method requires surface ECG…

(Investigators: A. Cigáň, A. Dvurečenskij, M. Škrátek, M. Majerová, J. Maňka) Polycrystalline samples with a nominal composition of EuBa2Cu3-xSnxO7-δ, where x = 0 to 1.5, were prepared by the solid phase reaction method at 1050 ° C in an oxygen atmosphere. Their structural, superconducting and magnetic characteristics were analyzed based on the results of polarizing…

(Investigators: A. Krakovská, J. Jakubík, M. Chvosteková) In cooperation with the Institute of Informatics of the ASCR in Prague, we focused on the detection of causal relationships between time series. The standard approach is the Granger causality test. In addition, we analyzed methods that estimate conditional mutual information between signals, or work with a degree…

Optimized X-ray microtomographic methodologies of three-dimensional visualization of biological objects and their internal microstructures were developed. Optimization of microtomographic measurements for a specific object included the choice of target material, optimized acceleration voltage and X-ray tube current, signal accumulation time on the detector, number of repetitions, choice of relaxation time between two measurements and number…

Investigators: M. Teplan, I. Bajla, R. Rosipal) When monitoring patients with severe head injury, the so-called method is used in clinical practice. critical value of the intracranial pressure time course (VLT). Exceeding this threshold is evaluated as an alarm situation, on the basis of which the medical staff initiates an emergency procedure (protocol) to save…

(Investigators: L. Valkovič, I. Frollo) Phosphorus MR spectroscopy (31P-MRS) is a unique technique that allows non-invasive measurement of tissue energy metabolism in vivo. However, due to the low signal-to-noise ratio (SNR), it is still not commonly used in medical practice. MR systems with a magnetic field strength of 7T in combination with surface coils achieve…