• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 155
  • 4
  • Tagged with
  • 159
  • 122
  • 67
  • 49
  • 25
  • 23
  • 18
  • 17
  • 17
  • 17
  • 16
  • 15
  • 14
  • 13
  • 13
  • 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.
51

Vliv teploty na pevnost lepeného spoje nábytkových hran

Vlčková, Romana January 2016 (has links)
The final thesis analyzes the influence of high temperatures on the quality of the glued joints glued with hotmelt polyurethane adhesive. The panels of particle board were finished with ABS edge by using modern technology for edgebanding. The samples were tested in peel test performed at an angle of 90° and shear under compression loading at an angle of 45°. The experiment was carried out for samples stored in standard conditions and samples placed in conditions simulating the internal environment in standardized transport units in intermodal transport. Results were compared with each other, they were also compared with the results for the glued joints with hotmelt ethylene vinyl acetate adhesive.
52

Problematika monitorace tělesné teploty a použití teploměrů na standardních odděleních / Monitoring body temperature and using thermometers in standard departments

HALAMOVÁ, Veronika January 2017 (has links)
Monitoring physiological functions is one of the basic parts of health care. At the moment there is an infinite number of possibilities how to measure body temperature in an effective, fast and non-invasive way. However, if the tools are not used correctly, there is a high possibility that mistakes will occur during measuring and therefore the patient's general state will be distorted. That is why each department has standards of nursing care which need to be followed. Due to EU regulations thermometers with mercury, which are considered the most accurate concerning the non-invasive way of measuring the body temperature, have been eliminated. For research purposes we used quantitative method based on a non-standard questionnaire for nurses working in surgery departments and on an experiment using three kinds of thermometers for carrying out individual patients measurements. The research showed that the most acceptable thermometer for measuring body temperature for nurses is the infrared contactless thermometer, even though many of them are aware that these thermometers can be inaccurate and the measured data distorted. The experiment clearly shows that there is an obvious difference between individual measurements. The results of this research could be beneficial for hospital managements, in particular as a guide when buying thermometers for individual departments. In this way they could ensure the most accurate measurements of body temperature resulting in discovering an incipient infection.
53

Systém domovního vytápění s hybridní komunikací / Home Heating Control with Hybrid Communication

Ambrož, Milan January 2020 (has links)
In this thesis, heating system with hybrid control of the heating intended for houses is proposed. The system is primarily prepared for storage tank and multiple heat sources.
54

Návrh optovláknového tepelného senzoru pro detekce narušení obranného perimetru / Design of optical fiber temperature sensor for detection of defense perimeter

Zámečník, Ondřej January 2021 (has links)
This diploma thesis deals with the issue of measuring the ambient temperature using a~single-mode optical fiber used as a temperature sensor. The thesis describes the basic knowledge about polarized light, its propagation in optical fiber and describes special fibers that preserve polarization. It also deals with the representation of polarization states on a Poincaré sphere and the use of Stokes and Jones vectors. In the practical part, several selected methods of optical signal supply to the temperature sensor are measured. Subsequently, the suitability of the given methods is evaluated from the measured results and the courses are compared with the records measured from real routes. This thesis aims to select a suitable connection of a temperature sensor for a long route of optical fiber and verify its functionality.
55

Regulace teploty mikrovlnného reaktoru. / Temperature controller of microwave reactor

Pokorný, Ondřej January 2008 (has links)
Simple low-cost temperature feedback control loop was created, using personal computer as control and data acquisition element. It controlled the temperature inside mircowave pressure reactor. Medium in reactor tank (volume about 600 ml) was calorified by 1,8 kW magnetron, which power was driven by PSD controller. The PC- process interface was made by USB data acquisition modul UD128A8D. The utility program was written. It implemented PSD controller and data acquisition function. Furhtermore it implemented interface which enabled user to set the technological curve (time-temperature relation). The protocol of experiment was automatically stored to Micosoft Excel file before the program’s termination.
56

Modul pro monitorování teploty / Temperature monitoring unit

Martínek, Jaroslav January 2008 (has links)
Content of the Bachelor Thesis covers design and realisation of an unit for multipoint temperature measuring in cooling and freezing equipments in food stores and shops. As a controlling microcomputer is used an Atmel ATMega128, temperature sensors are realised by DS18S20 digital thermometers, connected via 1-wire bus. Unit can read temperature from 32 temperature sensors, includes memory for measured data, real time clock, Ethernet interface and display with buttons for basic user control. Temperatures are measured periodically with user defined interval, values are stored into internal memory and showed on display. Measured data can also be transferred via Ethernet to clinent PC, where can be viewed in form of table and graphs.
57

Bezdrátový monitor vodních toků / River wireless monitor

Michník, Jakub January 2010 (has links)
This work presents hardware and software design for River wireless monitor Rabbit Core module RCM5400W. It describes possible solutions for measurement of river characteristics, in particular water level height. Pressure method measuring and selection of important electric parts are described in more detail. The software for Rabbit Core module RCM5400W and also web sites are described here.
58

Návrh tepelně-regulačního systému pro přesnou stabilizaci teploty s využitím Peltierových termoelektrických modulů / Design of thermal system for accurate temperature stabilization using Peltier thermoelectric modules

Motl, Jakub January 2011 (has links)
This master’s thesis describes design procedure of a heat-regulating system to stabilize its temperature using a Peltier module. The implementation uses eight-bit microcontroller ATmega16 made by company ATMEL for the local and remote control system. The temperature sensors communicate with the microcontroller by serial SPI interface. To display user data, it has a DEM16217SYH type character LCD display with HD44780 control circuit. To collect data from the cooling areas of Peltier module, accurate ADT7320 temperature sensors are used, made by company Analog Devices. The Control of the Peltier module happens in two points of the electrode system and a bistable hysteresis software regulator is used. The first part summarizes the theory, which concerns with the design. Next part concerned with issues of the Peltier module, overview of temperature sensors, description of the microcontroller, the display unit and the used regulator. Last part describes the hardware and software implementation.
59

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.
60

Teplotní analýza elektrického stroje / Thermal analysis of electric machine

Ječmínek, Tomáš January 2013 (has links)
This masters thesis is focuse for measuring devices of temperature and their usability and accuraci in the event of asynchronous engine in operation. The values from meusuring of engine are used for preparing optimalization of construction. The right proposal of construction is check in numerical program and the results are validation.

Page generated in 0.0597 seconds