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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.
21

Senzorická jakost jogurtů v závislosti na technologii výroby / Sensory quality of yogurts depending on production technology

KLÁPOVÁ, Kateřina January 2011 (has links)
The aim of this thesis was to evaluate the sensory analysis by selected types of yogurt on the basis of two production technologies, which are the tankmethod and thermostatmethod. It were selected 4 types of white non-flavored yogurt ? Hollandia Farm yogurt, South white yogurt, South yogurt NATURE and natural yogurt KLASIK. Sensory analysis were evaluate at descriptors ? the release of whey, skim on the surface, color, aroma, consistency, texture, intensity of different flavor, overall impression of yogurt. The chemical analysis was determined dry matter content, fat content, titratable acidity (in °SH) and active acidity (pH). When comparing the impact of technology, it was found, that thermostat method had a greater effect on intensity of sweet taste, after taste intensity, texture and tankmethod influenced more by the intensity of sour taste, pleasantness color, overall pleasantness of smell and consistency.
22

Regulátor solárního ohřevu bazénu / Solar pool heater

Jablončík, Lukáš January 2017 (has links)
The master´s thesis deals with the design of the solar heating regulator of the swimming pool. The basis was to study the available solutions for the solar pool controllers, to define the requirements, to design the concept and the block diagram of the own thermostat. The thesis also provides a description of several for the Internet of Things. The most suitable is used to control the thermostat. The resulting thermostat regulates two power outputs for filtration and the pump, it can be set using the keyboard and graphic display. At the end of the work is practically verified functionality on the model and on the real pool with solar heating.
23

Analýza a zlepšování jakosti sériové výroby ve vybrané společnosti / Analysis and improvement of serial production quality in a selected company

Klaška, Vojtěch January 2021 (has links)
This diplom thesis deals with iprovement of serial production quality in a company. The first chapter is devoted to literature research. The second is devoted to definition of product quality. The third part is focused on production process analysis. The fourth part deals with analysis of internal scrap and customer claims. The fifth part is focused on risk areas based on previous analysis. The final part includes corrective measures and preventitive actions and their financial assesment.
24

Effects of Thermostats in Molecular Dynamics Simulations of Nanoindentation

Guduguntla, Varun January 2019 (has links)
No description available.
25

The Design of Home Energy-management Interfaces: Effects of Display Type on Thermostat Temperature Selection

Stein, Joshua 28 November 2013 (has links)
This thesis explores home energy management (HEM), an emerging field for interface design and sustainability. Section 1 introduces HEM’s broader context. In Section 2, I review the literature surrounding HEM. Section 3 outlines the usability study on the ecobee Smart Thermostat, to evaluate the technology’s ease-of-use, and better understand users’ experience with current HEM technology. Section 4 describes a “Critical Making” workshop, where participants investigated HEM through material interaction and discussion. Section 5 describes and evaluates the potential design spaces gleaned from previous sections. In Section 6, I return to the literature to investigate key concepts underlying the design intervention for the chosen design space. Section 7 describes my design intervention and experimental evaluation. In Section 8, I present the study results, which suggest enhanced display labelling had a significant and directional effect on user-selected temperatures. In Section 9, I discuss these results, study limitations, and make conclusions and recommendations.
26

The Design of Home Energy-management Interfaces: Effects of Display Type on Thermostat Temperature Selection

Stein, Joshua 28 November 2013 (has links)
This thesis explores home energy management (HEM), an emerging field for interface design and sustainability. Section 1 introduces HEM’s broader context. In Section 2, I review the literature surrounding HEM. Section 3 outlines the usability study on the ecobee Smart Thermostat, to evaluate the technology’s ease-of-use, and better understand users’ experience with current HEM technology. Section 4 describes a “Critical Making” workshop, where participants investigated HEM through material interaction and discussion. Section 5 describes and evaluates the potential design spaces gleaned from previous sections. In Section 6, I return to the literature to investigate key concepts underlying the design intervention for the chosen design space. Section 7 describes my design intervention and experimental evaluation. In Section 8, I present the study results, which suggest enhanced display labelling had a significant and directional effect on user-selected temperatures. In Section 9, I discuss these results, study limitations, and make conclusions and recommendations.
27

Des moteurs de jeux à la physique des chromosomes

Carrivain, Pascal 19 December 2012 (has links) (PDF)
Durant ces dernières années, la modélisation en physique est restée aveugle aux développements de disciplines sœurs ; en particulier la mécanique ou plutôt la robotique qui développe des outils puissants comme la cinématique inverse et les moteurs physiques (ou moteurs de jeux). Ces techniques sont couramment employées dans les jeux vidéo pour des résultats très réalistes. Je propose ici de montrer que nous pouvons simuler des assemblages d'ADN et de protéines (fibre de chromatine et à plus grande échelle des chromosomes) comme des systèmes articulés avec un moteur physique. Je montre aussi qu'il est possible d'étendre le thermostat local de Langevin à un thermostat global pour accélérer l'échantillonnage de l'espace des configurations du système ADN-protéines dans l'ensemble canonique. Ce nouveau thermostat est particulièrement intéressant lorsqu'il est utilisé avec un moteur physique. Plus précisément, je montrerai que la simulation que j'ai développée reproduit les résultats expérimentaux de manipulation de molécules uniques sous pinces magnétiques et permet de faire des prédictions. Enfin, cette simulation offre des perspectives intéressantes pour la modélisation des noyaux d'organismes allant de la drosophile à l'humain et la compréhension des toutes dernières données sur l'architecture des génomes.
28

Termostat piezoelektrické krystalové jednotky / Thermoregulator of piezoelectric crystal unit

Roubal, Zdeněk January 2008 (has links)
This thesis deals with thermal stabilization of crystal oscillators. A simple thermostat of piezoelectric crystal unit is designed in first part. Main emphasis is set to low input power. The second part deals with crystal oscillators with 102,5MHz and 10MHz frequency. They are simulated with Ansoft Designer software. Both of these oscilators are measured for short term and midterm frequency stability.
29

Mikroprocesorem řízené měření a regulace teploty / Microprocessor Controlled Measurement and Control Temperature

Vožda, Michal January 2011 (has links)
The aim of the project is a design of the temperature controler based on microprocessor. There are described the most widely used sensors for the temperature measuring and their involvement in the electric circuit. The temperature controler is based on the Peltier’s thermoelectric battery. Project desribes power control of this thermoelectric battery and also a design of the entire system and a description of the blocks takes a part.
30

ADVANCED INDOOR THERMAL ENVIRONMENT CONTROL USING OCCUPANT’S MEAN FACIAL SKIN TEMPERATURE AND CLOTHING LEVEL

Xuan Li (8731800) 20 April 2020 (has links)
<div> <p>People spend most of their time indoors. Because people’s health and productivity are highly dependent on the quality of the indoor thermal environment, it is important to provide occupants with healthy, comfortable and productive indoor thermal environment. However, inappropriate thermostat temperature setpoint settings not only wasted large amount of energy but also make occupants less comfortable. This study intended to develop a new control strategy for HVAC systems to adjust the thermostat setpoint automatically and accordingly to provide a more comfortable and satisfactory thermal environment.</p> <p>This study first trained an image classification model based on CNN to classify occupants’ amount of clothing insulation (clothing level). Because clothing level was related to human thermal comfort, having this information was helpful when determining the temperature setpoint. By using this method, this study performed experimental study to collect comfortable air temperature for different clothing levels. This study collected 450 data points from college student. By using the data points, this study developed an empirical curve which could be used to calculate comfortable air temperature for specific clothing level. The results obtained by using this curve could provide environments that had small average dissatisfaction and average thermal sensation closed to neutral.</p> <p>To adjust the setpoint temperature according to occupants’ thermal comfort, this study used mean facial skin temperature as an indicator to determine the thermal comfort. Because when human feel hot, their body temperature would rise and vice versa. To determine the correlation, we used a long wave infrared (LWIR) camera to non-invasively obtain occupant’s facial thermal map. By processing the thermal map with Haar-cascade face detection program, occupant’s mean facial skin temperature was calculated. By using this method, this study performed experimental study to collect occupant’s mean facial skin temperature under different thermal environment. This study collected 225 data points from college students. By using the data points, this study discovered different intervals of mean facial skin temperature under different thermal environment. </p> <p>Lastly, this study used the data collected from previous two investigations and developed a control platform as well as the control logic for a single occupant office to achieve the objective. The measured clothing level using image classification was used to determine the temperature setpoint. According to the measured mean facial skin temperature, the setpoint could be further adjusted automatically to make occupant more comfortable. This study performed 22 test sessions to validate the new control strategy. The results showed 91% of the tested subjects felt neutral in the office</p> </div> <br>

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