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Effect of pelvic floor muscles in the deep stabilization system
KOTALÍKOVÁ, Kateřina
The bachelor thesis deals with back pain issues from the viewpoint of function. Backbone is an articulated axial organ and its stability, in addition to passive structures, is secured with long multi-articular muscles but their stabilization function is not sufficient. The stability is further improved with other muscular groups called a deep stabilization system (DSS). DSS in the trunk is made up on the dorsal side with short musculi multifidi, cranially with the diaphragm, ventrally with musculus transversus abdominis and caudally with the pelvic floor. The objective of the theoretical part has been to map the existing methods which affect the deep stabilization system with involvement of pelvic floor. The theoretical part contains an anatomic description of individual components of DSS, available methods of examination and particularly methodical procedures focusing on affecting of the system, mainly by involvement of pelvic floor. The objective of the practical part was to find out whether the pelvic floor has any influence on activation of the deep stabilization system and also what is the effect of gender on the involvement of pelvic floor in the course of performed physiotherapeutic procedures. The thesis has used the method of qualitative research. The research was conducted on 4 probands from my environs, who suffered from occasional pain in the backbone area and who were in the entry examination diagnosed with a disorder of frontal stability of the backbone. The monitoring lasted for ca. 2 months. The deep stabilization system was involved in all the probands. The first impulse for it, however, was the activation of pelvic floor. The therapy was concluded with a final examination which has shown that it was important to involve pelvic floor in order to activate the deep stabilization system (DSS). This has also contributed to the fulfillment of the objective in the research part. The results have been processed in the form of case studies. The bachelor thesis can be used in clinical practice of physiotherapists and some parts of it can be used as an educational material for patients.
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Ab initio studie Lavesových fází v systémech Fe-Cr, Fe-Mo a Fe-Ta
Houserová, Jana ; Šob, Mojmír
Binary systems Fe-Cr, Fe-Mo and Fe-Ta can be found in many kinds of steels where the Laves-phase can be considered as a potential candidate for strengthening provided size and distribution of the particles are within certain limits. We performed electronic structure calculations to study the thermodynamic and structural properties of the C14 Laves phase with various compositions. In the frame of the thermodynamic study, we have evaluated the total energies of formation of Laves phase structure with different occupations of sublattices (Fe2Fe, Fe2X, X2Fe, X2X, where X stands for Cr, Mo and Ta) with respect to the Standard Element Reference (SER) states. These energies of formation are of great importance for prediction of stability of studied configurations.
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Ion attachment and ion emission of dust grains
Vyšinka, Marek ; Němeček, Zdeněk (advisor) ; Wild, Jan (referee)
Small dust grains could be found in many environments. Because of their size, their charge and the electric forces acting on them play an important role in their dynamics. The dust grain charge is influenced by many different processes. Among other methods, charging processes can be studied by trapping a single dust grain inside an electrodynamic quadrupole where it is put into specific environment (ion or electron beam, UV radiation). The progress of the charging process can be inferred from the changes in the grain charge. Our work contributed to the building of a new laboratory set-up for study of the charging processes. Specifically, a new Faraday cup for measurements and stabilization of the ion and electron gun currents is designed and its function verified. It solves the shortcomings of the previously used Faraday cups. Further, an amplifier for the ion gun current measurement is designed and constructed along with the design of digital stabilization of the current. The stabilization is neccesary for the interpretation of measurement results and its digitalization will allow more flexible adjustment and easier connection with the control computer. Finally, data acquired during the charging of dust grain with different ion species are evaluated in order to study the effect of different ions on surface...
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Possibilities of physical therapy in females with muscular dysbalances of the type of the upper crossed syndrome
Tetřevová, Eva ; Smolíková, Libuše (advisor) ; Smékal, David (referee)
Upper-crossed syndrome is, according to Janda, described as a muscle imbalance in the upper part of the body, which significantly affects function of the cervical spine, the thoracic spine and the shoulder girdle. The non-physiological function and the position in these parts further influence, above all, respiratory stereotype - upper breathing - and body statics. Therapy is based on influencing the deep stabilizing system, followed by a therapy focused on the place of malfunction and the kinesiology count. Therapy of deep stabilization system complex infuences breath and postural function in their mutual coordination and it is program-controlled by CNS. Importance of close connection of breath and postural functions ensues from the fact, that respiratory muscles participate in internal stabilization with deep spinal muscles. Powered by TCPDF (www.tcpdf.org)
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Utilization of the inertial sensors for control of the mobile robots
Lachnit, Zdeněk ; Ondroušek, Vít (referee) ; Houška, Pavel (advisor)
The main subject of this thesis is use of inertial sensors for better motion and stability control of mobile robots. In background research are described the basic methods of mobile robots localization. Second part of background research is about mobile robot stability, in this part are described the methods of mobile robots stability control. In next part is description of MEMS accelerometers and gyroscopes and description of basic method of filtering and integration which are useful for input processing of these sensors. Thesis continues with inertial sensors analysis for application on control of wheeled and legged mobile robots. In end of thesis are specified the experiment results, which confirm the applicability of sensors for mobile robot control.
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Infiltration pattern changes related to the presence of soil
Votrubová, Jana ; Kosugi, K. ; Mizuyama, T.
For a period of three years, soil moisture distribution was monitored within a 50 cm × 50 cm transect on a forested hill-slope (Fudoji experimental watershed, central Japan). The site is covered by the forest brown soil (Cambisol) approx. 1 m deep underlain by weathered granite bedrock. Soil 25 moisture probes (CS615 Water Content Reflectometer, Campbell Scientific, Inc.) arranged in a 5×5 matrix spaced by 10 cm were used. The readings were collected in 5-minute intervals. The aim of the study was to assess temporal stability of the infiltration process under natural conditions.
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Design of excavator
Brza, Lukáš ; Zdařil, Zdeněk (referee) ; Křenek, Ladislav (advisor)
The design of the excavator follows requirements of machines for demolition work. The excavator is equipped with an innovative type of under carriage, which not only increases mobility over the demolition sites but also the visibility from the driver’s cabin. The components of the excavator, that improve the demolition work, are special types of tracks, suspensions and articulated steering. Tracks can change their shape to increase the stability and also to adapt to the diff erent types of ground. The suspensions with tracks are able to adapt to the terrain thereby they lighten the asperity. Suspension can also tilt or even raise the excavator and thereby increase the angle of visibility from the cabin. This function is necessary mainly when taking down higher constructions. Articulated steering is a new function that has never been used for excavators. This steering was chosen due to fl exible movement over demolition sites. The main aim of the project is to create a new design of the excavator, but more importantly to distinguish the excavator from the excavators already on the market, with regards to its esthetics and under carriage innovation.
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Swarm Intelligence
Winklerová, Zdenka ; Šaloun, Petr (referee) ; Škrinárová,, Jarmila (referee) ; Zbořil, František (advisor)
The intention of the dissertation is the applied research of the collective ( group ) ( swarm ) intelligence . To demonstrate the applicability of the collective intelligence, the Particle Swarm Optimization ( PSO ) algorithm has been studied in which the problem of the collective intelligence is transferred to mathematical optimization in which the particle swarm searches for a global optimum within the defined problem space, and the searching is controlled according to the pre-defined objective function which represents the solved problem. A new search strategy has been designed and experimentally tested in which the particles continuously adjust their behaviour according to the characteristics of the problem space, and it has been experimentally discovered how the impact of the objective function representing a solved problem manifests itself in the behaviour of the particles. The results of the experiments with the proposed search strategy have been compared to the results of the experiments with the reference version of the PSO algorithm. Experiments have shown that the classical reference solution, where the only condition is a stable trajectory along which the particle moves in the problem space, and where the influence of a control objective function is ultimately eliminated, may fail, and that the dynamic stability of the trajectory of the particle itself is not an indicator of the searching ability nor the convergence of the algorithm to the true global solution of the solved problem. A search strategy solution has been proposed in which the PSO algorithm regulates its stability by continuous adjustment of the particles behaviour to the characteristics of the problem space. The proposed algorithm influenced the evolution of the searching of the problem space, so that the probability of the successful problem solution increased.
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Packet Classification Algorithms
Puš, Viktor ; Lhotka,, Ladislav (referee) ; Dvořák, Václav (advisor)
Tato práce se zabývá klasifikací paketů v počítačových sítích. Klasifikace paketů je klíčovou úlohou mnoha síťových zařízení, především paketových filtrů - firewallů. Práce se tedy týká oblasti počítačové bezpečnosti. Práce je zaměřena na vysokorychlostní sítě s přenosovou rychlostí 100 Gb/s a více. V těchto případech nelze použít pro klasifikaci obecné procesory, které svým výkonem zdaleka nevyhovují požadavkům na rychlost. Proto se využívají specializované technické prostředky, především obvody ASIC a FPGA. Neméně důležitý je také samotný algoritmus klasifikace. Existuje mnoho algoritmů klasifikace paketů předpokládajících hardwarovou implementaci, přesto však tyto přístupy nejsou připraveny pro velmi rychlé sítě. Dizertační práce se proto zabývá návrhem nových algoritmů klasifikace paketů se zaměřením na vysokorychlostní implementaci ve specializovaném hardware. Je navržen algoritmus, který dělí problém klasifikace na jednodušší podproblémy. Prvním krokem je operace vyhledání nejdelšího shodného prefixu, používaná také při směrování paketů v IP sítích. Tato práce předpokládá využití některého existujícího přístupu, neboť již byly prezentovány algoritmy s dostatečnou rychlostí. Následujícím krokem je mapování nalezených prefixů na číslo pravidla. V této části práce přináší vylepšení využitím na míru vytvořené hashovací funkce. Díky použití hashovací funkce lze mapování provést v konstantním čase a využít při tom pouze jednu paměť s úzkým datovým rozhraním. Rychlost tohoto algoritmu lze určit analyticky a nezávisí na počtu pravidel ani na charakteru síťového provozu. S využitím dostupných součástek lze dosáhnout propustnosti 266 milionů paketů za sekundu. Následující tři algoritmy uvedené v této práci snižují paměťové nároky prvního algoritmu, aniž by ovlivňovaly rychlost. Druhý algoritmus snižuje velikost paměti o 11 % až 96 % v závislosti na sadě pravidel. Nevýhodu nízké stability odstraňuje třetí algoritmus, který v porovnání s prvním zmenšuje paměťové nároky o 31 % až 84 %. Čtvrtý algoritmus kombinuje třetí algoritmus se starším přístupem a díky využití několika technik zmenšuje paměťové nároky o 73 % až 99 %.
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