In this work, a MATLAB-based graphical user interface is proposed for the visual examination of several eye movements. The proposed solution is algorithm-based, which localizes the area of the eye movement, removes artifacts, and calculates the view trajectory in terms of direction and orb deviation. To compute the algorithm, a five-electrode configuration is needed. The goodness of the proposed MATLAB-based graphical user interface has been validated, at the Clinic of Child Neurology of University Hospital of Ostrava, through the EEG Wave Program, which was considered as "gold standard" test. The proposed solution can help physicians on studying cerebral diseases, or to be used for the development of human-machine interfaces useful for the improvement of the digital era that surrounds us today.

• Klíčová slova
• Matlab,
• MeSH
• dospělí MeSH
• elektrookulografie * metody   MeSH
• lidé MeSH
• měření pohybů očí MeSH
• mrkání MeSH
• pohyby očí MeSH
• software MeSH
• technologie sledování pohybu očí MeSH
• uživatelské rozhraní počítače MeSH
• výzkum MeSH
• Check Tag
• dospělí MeSH
• lidé MeSH
• mužské pohlaví MeSH
• Publikační typ
• kazuistiky MeSH
• práce podpořená grantem MeSH

The complex transverse water proton magnetization subject to diffusion-encoding magnetic field gradient pulses in a heterogeneous medium can be modeled by the multiple compartment Bloch-Torrey partial differential equation. Under the assumption of negligible water exchange between compartments, the time-dependent apparent diffusion coefficient can be directly computed from the solution of a diffusion equation subject to a time-dependent Neumann boundary condition. This paper describes a publicly available MATLAB toolbox called SpinDoctor that can be used 1) to solve the Bloch-Torrey partial differential equation in order to simulate the diffusion magnetic resonance imaging signal; 2) to solve a diffusion partial differential equation to obtain directly the apparent diffusion coefficient; 3) to compare the simulated apparent diffusion coefficient with a short-time approximation formula. The partial differential equations are solved by P1 finite elements combined with built-in MATLAB routines for solving ordinary differential equations. The finite element mesh generation is performed using an external package called Tetgen. SpinDoctor provides built-in options of including 1) spherical cells with a nucleus; 2) cylindrical cells with a myelin layer; 3) an extra-cellular space enclosed either a) in a box or b) in a tight wrapping around the cells; 4) deformation of canonical cells by bending and twisting; 5) permeable membranes; Built-in diffusion-encoding pulse sequences include the Pulsed Gradient Spin Echo and the Oscillating Gradient Spin Echo. We describe in detail how to use the SpinDoctor toolbox. We validate SpinDoctor simulations using reference signals computed by the Matrix Formalism method. We compare the accuracy and computational time of SpinDoctor simulations with Monte-Carlo simulations and show significant speed-up of SpinDoctor over Monte-Carlo simulations in complex geometries. We also illustrate several extensions of SpinDoctor functionalities, including the incorporation of T2 relaxation, the simulation of non-standard diffusion-encoding sequences, as well as the use of externally generated geometrical meshes.

• MeSH
• difuzní magnetická rezonance metody   MeSH
• lidé MeSH
• mozek * MeSH
• neurozobrazování metody   MeSH
• počítačová simulace MeSH
• software * MeSH
• teoretické modely * MeSH
• Check Tag
• lidé MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH

UNLABELLED: SIMToolbox is an open-source, modular set of functions for MATLAB equipped with a user-friendly graphical interface and designed for processing two-dimensional and three-dimensional data acquired by structured illumination microscopy (SIM). Both optical sectioning and super-resolution applications are supported. The software is also capable of maximum a posteriori probability image estimation (MAP-SIM), an alternative method for reconstruction of structured illumination images. MAP-SIM can potentially reduce reconstruction artifacts, which commonly occur due to refractive index mismatch within the sample and to imperfections in the illumination. AVAILABILITY AND IMPLEMENTATION: SIMToolbox, example data and the online documentation are freely accessible at http://mmtg.fel.cvut.cz/SIMToolbox. CONTACT: ghagen@uccs.edu SUPPLEMENTARY INFORMATION: Supplementary data are available at Bioinformatics online.

• MeSH
• buňky Hep G2 MeSH
• fluorescence * MeSH
• fluorescenční mikroskopie metody   MeSH
• lidé MeSH
• mikrofilamenta ultrastruktura   MeSH
• osvětlení metody   MeSH
• počítačové zpracování obrazu MeSH
• software * MeSH
• zobrazování trojrozměrné metody   MeSH
• Check Tag
• lidé MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH

• Publikační typ
• abstrakt z konference MeSH

• Klíčová slova
• obrazová analýza, kainát, Fluoro-Jade B,
• Publikační typ
• abstrakt z konference MeSH

• MeSH
• diagnostické zobrazování MeSH
• počítačové zpracování obrazu MeSH
• Publikační typ
• příručky MeSH

• Konspekt
• Speciální počítačové metody. Počítačová grafika
• NLK Obory
• lékařská informatika

• MeSH
• financování organizované MeSH
• počítačová grafika přístrojové vybavení   MeSH
• počítačové zpracování obrazu metody   přístrojové vybavení   MeSH
• software MeSH
• termografie metody   přístrojové vybavení   MeSH

• Klíčová slova
• Matlab,
• MeSH
• elektrokardiografie metody   přístrojové vybavení   MeSH
• finanční podpora výzkumu jako téma MeSH
• lidé MeSH
• monitorování fyziologických funkcí metody   přístrojové vybavení   MeSH
• software MeSH
• Check Tag
• lidé MeSH
• Publikační typ
• hodnotící studie MeSH

In the Czech part of the Upper Silesian Coal Basin (Moravian-Silesian region, Czech Republic), there are many deposits of endogenous combustion (e.g., localized burning soil bodies, landfills containing industrial waste, or slag rocks caused by mining processes). The Hedwig mining dump represents such an example of these sites where, besides the temperature and the concentrations of toxic gases, electric and non-electric quantities are also monitored within the frame of experimentally proposed and patented technology for heat collection (the so-called "Pershing" system). Based on these quantities, this paper deals with the determination and evaluation of negative heat sources and the optimization of the positive heat source dependent on measured temperatures within evaluation points or on a thermal profile. The optimization problem is defined based on a balance of the heat sources in the steady state while searching for a local minimum of the objective function for the heat source. From an implementation point of view, it is the interconnection of the numerical model of the heat collector in COMSOL with a user optimization algorithm in MATLAB using the LiveLink for MATLAB. The results are elaborated in five case studies based on the susceptibility testing of the numerical model by input data from the evaluation points. The tests were focused on the model behavior in terms of preprocessing for measurement data from each chamber of the heat collector and for the estimated value of temperature differences at 90% and 110% of the nominal value. It turned out that the numerical model is more sensitive to the estimates in comparison with the measured data of the chambers, and this finding does not depend on the type optimization algorithm. The validation of the model by the use of the mean-square error led to the finding of optimal value, also valid with respect to the other evaluation.

• Publikační typ
• časopisecké články MeSH

• MeSH
• algoritmy MeSH
• financování organizované MeSH
• lidé MeSH
• počítačové zpracování signálu MeSH
• pohyb fyziologie   MeSH
• software MeSH
• statistika jako téma MeSH
• teoretické modely MeSH
• uživatelské rozhraní počítače MeSH
• Check Tag
• lidé MeSH