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Simulation of the sound transfer via human ear
Hájek, Petr ; Švancara, Pavel (referee) ; Pellant, Karel (advisor)
The presented thesis concerns the biomechanics of hearing. The main aim of this work is the determination of so called corrections which allow for the comparison of synthetic audiograms and measured audiograms. With these corrections we attempt to overcome the discrepancy that exists between the computational modelling and audiological measurement. The discrepancy lies in a fact that the computational modelling usually simulates the sound coming from a free eld to the external auditory canal, while audiological measurement is realized by audiological headphones, whether the auditory system is healthy or injured. Then corrections adjust the computational model so that the obtained result is comparable to audiological measurement. In this work is also addressed the influence of stapes kinematics to the excitation of basilar membrane. The movement of stapes consists of piston-like movement and rocking movement. The computational simulation shows which movement is more signicant for the excitation of basilar membrane and how this effect can be used in otosurgery, in particular, for type IV of tympanoplasty.
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Quality of life in adults with benign prostatic hyperplasia
Kroutilová, Petra ; Pacovský, Jaroslav (advisor) ; Mareš, Jiří (referee)
ANOTATION Author: Petra Kroutilová Institution: Institute of Social medicine Department of Nursing Charles University in Prague Medical Faculty of Hradec Králové Title of Thesis: The Quality of Life in Adults with benign Prostatic Hyperplasia Supervisor: Jaroslav Pacovský, M.D., Ph.D. Pages number: 99 Attachments number: 3 Year of Disputation: 2012 Key words: Quality of life, benigh prostatic hyperplasia, transurethral resection of the prostate, nursing care Bachelor's thesis presents problem of the benign prostatic hyperplasia (BPH) and its management. BPH disease drops down quality of life. The incidence of these problems increases and BPH needs correct diagnostics following by adequate therapy. This thesis is interesting for majority of men, even for younger of them, because the pathologic changes in the prostate can be found in men after the 30th year of age. Bachelor's thesis is focused on the quality of life just after the surgical management of BPH - Transurethral resection of the Prostate - TUR-P. The objective of this thesis is an evaluation of the factors with the deepest impact on BPH symptoms and complications. Moreover it evaluates patients' expectances of improvement or worsening and compares them with the post-operative reality even in time period.
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Slip factor of the hydrodynamic pumps
Duda, Petr ; Archalous, Jakub (referee) ; Klas, Roman (advisor)
Bachelor thesis contains basic information about the hydrodynamic pumps. It describes the specific energy for an infinite number of very thin blade and following corrections to the finite number of blades. Part of this work is dedicated to all-weather resulting in Blade to blade channel and their effect on specific energy pump. There are illustrated by calculations of correction factors of individual authors and finally corrections are made on real three impeller wheels with a comparison of different methods.
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Incidence of multidrug-resistant Klebsiella spp. in University Hospital Hradec Králové 2008-2010.
Schrammová, Kateřina ; Paterová, Pavla (advisor) ; Lesná, Jiřina (referee)
Charles University in Prague Faculty of Pharmacy in Hradec Králové Department of Biological and medical Sciences Candidate: Bc. Kateřina Schrammová Supervisor: MUDr. Pavla Paterová Title of diploma thesis: The incidence of multidrug resistant strains of Klebsiella spp. at UH in Hradec Kralove in the years 2008-2010 Klebsiella pneumoniae producing a broad spectrum beta - lactamases ( ESBLs ) are of global common pathogen causing nosocomial infections that are associated with higher mortality and limiting treatment options. To prevent nosocomial transmission is necessary to determine and compliance with procedures of the correct nursing practice focused on multidrug-resistant strains. The practical part is focused on the occurrence of ESBL-producing K. pneumoniae in a University Hospital Hradec Králové from January 2009 to December 2010. The file contains all the positive culture of material from patients of HK Hospital. The incidence of K. pneumoniae is evaluated by material, capture the individual clinics, in intensive and standard care, in surgical specialties, age and time. In 2009 is isolated a total of 1545 strains of ESBL -producing K. pneumoniae, 1716 strains in 2010. The most positive material is urine (34-35 %) and samples from the respiratory tract (43-52 %). ESBL K. pneumoniae account for...
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Correctors of video signals aperture distortion
Baletka, Tomáš ; Kratochvíl, Tomáš (referee) ; Říčný, Václav (advisor)
The aim of this Bachelor thesis was first to explore capabilities of aperture correction in the analogue and digital field. Aperture correction reduces the duration of entering egde of the brightness signal of the full television signal. By dint of the theoretical findings to project a circuit diagram of the derivation and cosine aperture equalizer. The derivation aperture equalizer uses the second derivation to adjust and reduce the duration of the entering edge. The cosine aperture equalizer uses the dead time element for reduction of the entering edge of the input signal. Afterwards with the simulations to validate their functions of the adjustment of the entering edge of the input signal. In the end to compile the structural background for the creation of both of the equalizers.
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Modelling of the low-velocity layer in seismic prospection
Procházka, Jan ; Fischer, Tomáš (advisor) ; Skopec, Jiří (referee)
The subject of the thesis is to compare layered model and tomographic model. These models are used for description of low velocity layer in seismic survey. The goal of the work was to find out the conditions whether to prefer tomographic model instead of layered model. Program Geostar was used for modelling of low velocity layer. This program is a part of software package produced by CGG Veritas company. Geostar is available at department of Applied Geophysics for study purposes. Four synthetic models were created for comparison of tomographic and layered models. Models of low velocity layer were computed for layered an tomographic model in Geostar environment. Original models were compared to created models. Accuracy was estimated on root mean square error and static correction which was exactly known. In all cases, layered model showed better results then tomographic model. 1
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Evaluation of global changes of forest land based on remote sensing
Hladká, Anna ; Štych, Přemysl (advisor) ; Kupková, Lucie (referee)
Evaluation of global changes in forest area based on remote sensing data Abstract: The aim of this project is using remote sensing data to assess change in global forest area. This work should give the outline of the principles of land cover classification, with a focus on forests based on satellite images, but also show a real solution in the evaluation of changes in forest areas in two selected regions. The first part is performed a literature review of all aspects of this sub-topic from the basic principles of remote sensing across the typology and characteristics of satellite sensors, which are giving the satellite images to land cover classification systems and characteristics of forest area. The next section describes the basic procedure for classification of satellite imagery and its possible variants. In my work there are explain the image corrections, the supervised and unsupervised classification, the method of checking the accuracy of classification or use of software. Selected area for my work was Riau in Indonesia and state of Oregon, USA. To these regions there are demonstrated practical procedure for classifying land cover and then its changes from the forest areas. In conclusion of my work the results are discussed and compared with available land cover databases. Key Words: Remote Sensing,...
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Regulace vnitřního pH kvasinek - vliv vybraných transportních proteinů
Zalom, Peter ; Chaloupka, Roman (advisor) ; Holoubek, Aleš (referee)
Intracellular pH affects nearly all biochemical processes in yeast, the processes regulating the cytosolic pH includes function of many transport proteins. In this work, the impact of selected sodium transporters on cytosolic pH has been studied in two yeast species: Saccharomyces cerevisiae and Zygosaccharomyces rouxii including wild-type and mutants with affected sodium transport. Measurements of cytosolic pH and buffering capacity have been performed using fluorescent protein probe pHluorin - a pH sensitive derivate of green fluorescence protein. Several procedures for calibration of pHluorin fluorescence response have been compared and the importance of a proper correction of the calibration curve has been demonstrated. It has been shown that cytosolic pH is influenced by the function of Nha1 transport protein in S. cerevisiae as well as in Z. rouxii but not by Sod2-22 transporter in Z. rouxii. It has been demonstrated that the buffering capacity of cytosol decrease in the presence of glucose in all strains studied.
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Optimization Methods for Compensation of Shooting Inaccuracy
Horníček, Jan ; Novotný, Jan (referee) ; Popela, Pavel (advisor)
In this work there is performed analysis of inaccuracy shooting and its optimum corrections especially for playing darts. At rst the model describing inaccurate shooting is made. Using this model we received prerequisites for numerical solving of our problem. Computing algorithm was made and than was proven that our problem can be solved with arbitrary precision by this algorithm. The algorithm was implemented in MATLAB and modied using functional Analysis to minimize computing time. Our problem was solved by this algorithm and in conclusion was made simple application for visualization of received data.
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Hranové efekty v rotační viskozimetrii III. ZZ a KK sensory, psudopodobnost totálního skluzu
Wein, Ondřej
The edge effects in AWS rotational viscometry are studied for materials, displaying the total slip at walls, i.e. negligible effect of the bulk shear flow. The found analytic asymptotes correspond to two asymptotic flow behaviour – for Newtonian liquids and ideal plastic materials. The explicit formulas on the edge-effect correction cL for this constitutionally extreme case are given for the ZZ40 according to ISO 3219 (1994) standard and the novel KK35/23 configuration of our own design.
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