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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
31

Databáze tepelných parametrů oblečení pro systém iHVAC / Drivers clothing thermal resistance database for iHVAC system

Hrubanová, Kristýna January 2017 (has links)
This diploma thesis is focused on measurement of thermal properties of clothes by thermal manikin and on application of results for prediction of thermal comfort in system iHVAC. First part of thesis is dedicated to research with relation to this topic and to definitions of main computational equations necessary for experimental measurement. The choise of method for measurement based on available standards is an important part of this thesis. The main focus of thesis lies on measuring 5 combinations of clothes at different calibration temperatures and same temperature of manikin surface. Then data are examined and also the analysis of uncertaities and repeatability is maked. According to assupmtion , the independence of value of heat transfer coefficient to ambient temperature is comfirmed and calculated heat resistance of every single clothes is compared to existing wardrobe for system iHVAC. The outcome of this thesis is specificied and completed virtual wardrobe which serves to prediction of thermal comfort in car.
32

Propojení tepelného manekýna s termofyziologickým modelem člověka / Coupling of Thermal Manikin with Human Thermophysiological Model

Doležalová, Veronika January 2019 (has links)
thermal manikin, thermophysiological model, thermal comfort, climatic chamber, clothing thermal resistence
33

Tepelný komfort a jeho stanovení / Thermal comfort and its estimation

Žáková, Monika January 2015 (has links)
This paper summarizes the problems of human thermoregulation and its measurement, with a focus on the method of indirect calorimetry in resting conditions at different ambient temperatures and during physical activity. It also introduces the issue of human thermal comfort and the methodology of its monitoring using thermal manikin. It describes PowerCube Ergo (Ganshorn, Germany) and Cardiovit AT-104 (Schiller, Switzerland), the diagnostic devices used to spiro-ergometry measurements. It introduces the options to export data. The work proposes the protocol for measuring the thermoregulation of the small group of volunteers, which is realized by the practical part. According to the same protocol is monitored thermal comfort of the thermal manikin. In MATLAB is created the application, allowing clear analysis of measurement records. The data are evaluated and discussed.
34

Testování vnitřního prostředí prostřednictvím tepelného manekýna / Measurement of indoor environment by means of thermal manikin

Ševeček, Jan January 2013 (has links)
This dissertation deals with the measurement of the internal environment through thermal manikin Newton, especially in terms of thermal comfort. Measurements were performed in a typical office environment and cabins of small transport aircraft. The course of events and the time constants for the measurement in the office was given by real flow in the office when the sequences of events were unfolded from the usual transactions carried out during the day. In contrast, the second measurement, which took place in the model of small transport aircraft, the course of events and time constants, was performed exactly according to predetermined plan. The other parts of the thesis describe how to calibrate the manikin and then generate a diagram comfort zones. Following are compared individual test cases and events using the diagram comfort zones. Finally, individual test cases and events are compared using the diagram comfort zones and medics according to ISO 14505-2.
35

Stanovení součinitelů přenosu tepla radiací a konvekcí z povrchu tepelného manekýna / Determination of heat transfer coefficients from the surface of the thermal manikin

Fojtlín, Miloš January 2014 (has links)
This thesis deals with an experimental determination of heat transfer coefficients from the surface of the thermal manikin. The main focus of the work lies on separating radiative and convective heat fluxes from the surface of the thermal manikin. Both nude and clothed, standing and seated postures were investigated respectively. The tests were conducted in a constant air temperature (cca 24°C) and a constant wind speed (cca 0,05 m.s-1) environment. The major part of the radiative heat flux was eliminated by a low emissivity coating applied to the surface of the nude thermal manikin, and in the case of clothed manikin by a low emissivity two-piece dress. Favorable results were achieved only in the case of the nude manikin measurements. The measurements were performed across 34 zones that logically represent parts of a human body. Experimental work confirms theoretical expectations in the means of a heat transfer. In addition, the results of this work were compared to results of a similar experimental work. The outcomes of this thesis provide essential information in order to create detailed computational models of a thermal environment. Such models require anatomically specific, separate values of convective and radiative heat transfer coefficients.
36

Bewertungsmodell muskulärer dynamischer Beanspruchungen

Mühlstedt, Jens, Hentschel, Christian, Bartel, Doreen, Grundmann, Isabell, Spanner-Ulmer, Birgit January 2011 (has links)
Zur ergonomischen Analyse manueller Arbeitsprozesse wird an der Professur Arbeitswissenschaft ein Modell für dynamische Beanspruchungen entwickelt. Dazu wurden diese analytisch zerlegt und parametrisiert. In einem Laborversuchsstand werden elementare dynamische Beanspruchungen einzelner Körperteile systematisch mittels elektromyografischer Messung der beteiligten Muskeln untersucht und anschließend analysiert. Es konnten Zusammenhänge zwischen den Belastungsgrößen Bewegungsgeschwindigkeit, Bewegungswiderstand (Moment) und Bewegungsrichtung und der Beanspruchungsgröße der elektrischen Muskelaktivität gezeigt werden.
37

Der Einfluss des Atemwegsmanagement unter Reanimationsbedingungen auf die Hands-on-Zeit: Ein Vergleich der Beutel-Masken-Ventilation und direkten Laryngoskopie mit der Intubationslarynxmaske / The influence of airway management under resuscitation conditions on hands-on time: a comparison of bag-mask ventilation and direct laryngoscopy with the intubation laryngeal mask

Stradtmann, Christoph 28 March 2018 (has links)
No description available.
38

Analysis of vehicle ergonomics using a driving test routine in the DHM tool IPS IMMA

Romera Orengo, Javier January 2020 (has links)
The objective of this project is to develop a driving test using a Digital Human Modeling tool (DHM), specifically IPS IMMA, which will allow the evaluation of the ergonomics of the interior of vehicles as currently demanded by the automotive companies. Thus, improving both the design and the design process. This will involve a study of the driving and the tasks carried out by a real person to end up programming them in the DHM software. Based on this study an interface is suggested that guides engineers or ergonomists to design their own driving tests and enable them to evaluate their own designs without a high specialization in DHM tools and software. Taking into account the already present autonomous cars and their future development, the conceptual design of a two positions steering wheel (autonomous/manual driving) will be introduced as an example to be added in the driving test. This example is intended to show how DHM tools can be used to evaluate different designs solutions in early stages of the product development process. This project will be a contribution to one of the sections of the ADOPTIVE project carried out at the University of Skövde and in collaboration with Swedish automotive companies.
39

Metodika pro testování prostředí v kabině osobního vozu s využitím tepelného manekýna a testovacích osob / Measurement of Cabin Environment by Means of Thermal Manikin and Test Subjects

Toma, Róbert January 2016 (has links)
In this thesis, there is processed design of test procedure for innovative HVAC system. This design was created in consecutive phases with use of thermal manikin Newton and climate chamber. Correlation between data from thermal manikin and tests subjects and possible design changes were evaluated after each phase. There are mentioned basics of human thermoregulation, factors which affect thermal comfort and ways in which is possible to measure and rate it with use of thermal comfort scales and comfort zones diagram. The thesis includes survey for testing thermal comfort and scales which are used to complete it. In the end, we mentioned some results alongside with our approach in evaluation of correlation between thermal manikin and test. There is also final design of test procedure for innovative HVAC system which would be used for its calibration and final functionality testing.
40

La interrelación música pintura: un análisis comparativo actualizado de sus principales fundamentos técnicos y expresivos

Juan Ayala, Octavio de 25 November 2010 (has links)
Tres ideas fundamentales: el correlato neuronal musicopictórica, la posible existencia de universales en la música y la pintura, y el fenómeno de la evocación pictórica / Threefundamental ideas: The neural music painting correlate, the possibility of universals in music and painting and the phenomenon of music painting evocation< / Fazit: Drei Wesentliche ideen: Das neuronales musicopictorisches korrelat, Mögliche universalien in musik und malerei und das phänomen der evocation zwischen musik und malerei

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