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Modification of a multi-recess hydrostatic bearing pad geometry
Šimara, Vít ; Robenek, Dětřich (referee) ; Svoboda, Petr (advisor)
In the design of a hydrostatic bearing, basic analytical expressions assuming parallelism of sliding surfaces and simple geometry can be employed. In this study, the properties of a specific pocket shape were investigated even under conditions of tilt, which can arise from assembly errors or asymmetric loading. Based on experimental data, a Computational Fluid Dynamics (CFD) model of hydrostatic lubrication has been developed and validated. A constant flow through all recesses was considered and conditions of no movement of the sliding surface were assumed. The model was subsequently modified to a variant with discharge grooves separating individual recesses and a variant with variable recess position relative to the centre of the pocket. The results demonstrated that the pocket's ability to carry asymmetric loading increases mainly with increasing distance of the recess from the centre, followed by their size. However, this ability comes at the cost of higher performance losses in hydrostatic lubrication. The results of this work can be used for the design of pockets with different methods of pocket support or alignment.
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Case Study of Physiotherapy Treatment of a Patient after Transfemoral Amputation
Chrz, Michal ; Maršáková, Kateřina (advisor) ; Nováková, Tereza (referee)
vi Abstract Author: Michal Chrz Supervisor: Mgr. Kateřina Maršáková Title: Case Study of Physiotherapy Treatment of a Patient after Transfemoral Amputation Objectives: The work aims to summarize the theoretical knowledge of amputation issues and their therapeutical solutions, to utilize, document and evaluate these within the case study of physiotherapeutic care for a patient after unilateral transfemoral amputation. Methods: This study comprises two parts. The first part provides a theoretical overview of amputation issues and their therapeutic solutions, focusing on postoperative care within physiotherapy and prosthetics. The second part presents a case study of a 3-week physiotherapeutic intervention for a patient after right-sided transfemoral amputation, including postoperative complications (MRSA, Covid 19). The case study took place approximately 5 months after the amputation and includes the patient's history, initial examination, rehabilitation plan, 13 therapeutic sessions, final evaluation, and the therapy evaluation. Results: The most significant results of the physiotherapeutic intervention were desensitization and coning of the stump, its alignment; increase in range of motion and strength of both hip joints, particularly into extension; qualitative and quantitative improvements in standing...
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Design of Forming Tool and Machinery for Couting out of Pad
Kolář, Milan ; Štroner, Marek (referee) ; Dvořák, Milan (advisor)
The Diploma Thesis presents a draft of designated automatic apparatus for cutting out and assembling pads for pressure control valve (DRV2). The theoretical chapter of the Thesis contains selected findings from theory and technology for material cutting. The next chapter contains design solutions for a designated apparatus for cutting and assembling pressure control valves. The pads are etched from 0,08 mm steel plates X2CrNi Mol7-12-2. The shape of the pads is etched on a 35mm-wide belt that is wound up onto a drum. The draft of this new technological facility has been elaborated in accordance with the most suitable technological variant. The cutting tool is made of steel 19 437 that is thermally processed at HRC 62-4. Estimated annual volume of production series is 2 mil. pcs. The cutting and assembly processes are executed with the aid of this designated automatic apparatus.
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Reinforced concrete slab supported on columns
Hadamíková, Karolína ; Strnad, Jiří (referee) ; Požár, Michal (advisor)
The bachelor thesis is focused on design and assessment point-supported slab on the lowest level of fourth-level storage to ultimate and serviceability limit state. Design of slab was created in software SCIA Engineer and followed by checking if it is right by manual calculation. This thesis contains a static calculation and technical drawings of typical column, foundation pad. At the end of structural assessment was calculated prefabricated staircase. All structures were proceeded according to the valid standard ČSN EN 1992-1-1.
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Physical and Mathematical modelling of Chimney Demolition
Ficker, Tomáš ; Keršner, Zbyněk (referee) ; Frantík, Petr (advisor)
The thesis deals with physical and numerical modelling of downsized model of chimney and its demolition. The properties of downsized physical model, which is made of wooden cubes, are being researched and experimentally tested. The physical experiments are then designed using software FyDiK. Numerical Model is simplified to 2D problem, whereas the problem includes dynamic effects. Conformity of designed software model and physical experiment is tested. The aim of this thesis is to achive the best possible conformity of physical and numerical models.
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Smartphone-based fall detection
Strejček, Jakub ; Smital, Lukáš (referee) ; Němcová, Andrea (advisor)
This bachelor thesis deals with basic processing of data from accelerometer in smartphone, which is used for fall detection of people. By right detection we could prevent many serious injuries caused by delayed help to people, who were unable to call for help. This paper focuses on the mechanisms of falls and their characteristics and also on hardware used for fall detection. Furthermore, already created Android applications from Google Play and their functionality are studied. In addition to that there were collected data about people falls and an algorithm for detection of fall was created in Matlab. Android smartphone application was developed and tested in this work.
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Manufacturing of ignition cover pad
Dostál, Martin ; Peterková, Eva (referee) ; Podaný, Kamil (advisor)
The thesis solves the design of the technology of production of the ignition cover pad made of steel 11 321 with a thickness of 1 mm with zinc surface treatment. It serves as part of the motorcycle engine sealing system. The part is rotating in shape with a diameter of 35 mm and consists of a central extrusion and a hole. The size of the series is 25,000 pieces per year. Production by a progressive compound tool from a coil with dimensions of 1200 x 500 mm is chosen. 3 forming operations with eating between steps are selected, which are implemented by cutting and embossing technologies. The necessary forming work of 476 kJ and the force of 267 kN are determined, according to which the PRESSIX CNV4 eccentric press is chosen. The machine is introduced into the automated Shungdar SJD and SJK production line, which consists of a straightener, unwinder and feeder.
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Multifunctional monitoring belt
Dítě, Martin ; Milek, Jakub (referee) ; Harabiš, Vratislav (advisor)
The aim of this thesis is to develop a wireless monitoring belt based on literature review. The belt will be capable of scanning heart rate, respiratory rate, body temperature, motion, position, and falling of the user. Another aim is to also design a software for data reception and analysis focusing on pulse, respiratory rate, and temperature alarms.
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Effectiveness of Fall Prevention Intervention Programmes in Nursing Practice
HOROVÁ, Jana
Patient falls and fall injuries have become one of the most common adverse events reported by health care providers due to all the circumstances associated with hospitalisation.Worldwide preventive actions in the field of patient falls focus on soft factors,predominantly on the education of healthcare professionals and patients,and organisational culture.Due to the dynamic development of information technologies and the increasing digital literacy of the professional and lay population,the e-learning field is an increasingly sought-after form of education.The empirical part's main objective was to determine the effectiveness of general nurses' education through information technology as an intervention programme to prevent patient falls. The main objective was divided into consecutive partial objectives.A mixed approach was used.The study uses a observational-interventional design. The first partial objective,an analysis of patient falls, was investigated using a quantitative research method.Patient falls concerning a major health care provider were analysed over five years.The ??2-test or Fisher's exact test was used to test statistical relations.The Kruskal-Wallis test was used to test nonparametric variables.Regression analysis was applied to evaluate the trend in the incidence of fall injuries with regard to high-risk patients.The second research phase was based on the previous phase results,whereby a qualitative methodological approach was selected.The aim was to detect areas of falls focused on the specifics of the clinical environment,which were suitable for being included in the educational programme.Data was collected through a semi-structured interview. The third partial objective was creating and implementing an e-learning educational programme for general nurses in a clinical environment.Within the pilot testing,the properties of knowledge tests,content validity,and reliability were verified using Spearman's rank correlation coefficient and Cronbach's alpha.The effectiveness of the established e-learning programme (fourth partial objective)was verified by comparing the incidence of patient falls before and after the established intervention.Bonferroni correction and test of equality of parameters of two alternative distributions were used to verify the homogeneity of the compared groups of patients. With regard to the possible influence of confounders and to verify the incidence of injuries caused by falls,the method of statistical matching (propensity score matching) was subsequently used.Valuation of the e-learning programme's effectiveness with regard to the participants' level of knowledge was performed by comparing the results of the input and output knowledge test,for which the Stuart-Maxwell test and Fisher's exact test were used.The analysis of partial objectives of individual research phases was carried out separately;the objectives logically followed,and fulfilling the previous objective conditioned their fulfilment.The test of equality of parameters of two alternative distributions allowed for comparing groups of patients that could be considered equal.There was a decrease in the incidence of patient injuries due to falls in both disciplines (all injuries in the surgical discipline; p ? 0.05 and severe injuries in the internal medicine discipline; p ? 0.01).The results proved the influence of the e-learning educational programme on specific clinical practice indicators.Statistical matching eliminated confounding factors and confirmed a statistically significant reduction in the incidence of falls in patients with internal medicine injuries (p? 0,05).There was also an improvement in the participants' knowledge in the output knowledge test (p ? 0,001). Education of medical personnel based on the principles of science and the needs of clinical practice is a possible effective preventive intervention in patients falls and efforts to minimise the occurrence their consequences.
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