|
|
Flow measurement
Pátek, Tomáš ; Kunz, Jan (referee) ; Beneš, Petr (advisor)
This bachelor thesis deals with thermal flowmeter design. In the theoretical part are briefly described flow types, general formulas of fluid mechanics and different flow measurements methods. Second practical part this bachelor thesis deals with design of thermoanemometric gas flow sensor with FS7 sensor by IST AG. Design is based on many measurementrs to get basic features of sensor IST FS7 like heater warming depending on flow, heat transfer in zero flow and basic characteristic. Based on measurements, it is designed mathematical model of sensor by two methods. So it is designed universal performing electronics, which can be used with IST FS7 or IST DFOOL sensors. It is based on development kit Texas Instrumens MSP-EXP430FR2311. Firmware and MATLAB script which processing measured data is included.
|
|
|
Comparison between Flow in the Left Internal Mammary Artery Harvested via Sternotomy and via a Left Anterior Small Thoracotomy with Clinical Impact for the Patient
Voborník, Martin ; Harrer, Jan (advisor) ; Lonský, Vladimír (referee) ; Rohn, Vilém (referee)
Comparison between flow in the left internal mammary artery harvested via sternotomy and via a left anterior small thoracotomy with clinical impact for the patient Introduction: In the treatment of coronary artery disease (CAD), in addition to conservative therapy and percutaneous interventions, is irreplacebly belong coronary artery bypass grafting (CABG). The gold standard in the surgical treatment of CAD is CABG from a median sternotomy access using cardiopulmonary bypass (on-pump CABG). A less invasive and economically advantageous is CABG from a median sternotomy access without cardiopulmonary bypass (off-pump CABG) and last but not least CABG through a left anterior small thoracotomy (LAST) approach (MIDCAB - "minimally invasive direct coronary artery bypass"). Although the final technical implementation anastomoses is essentially identical in off-pump CABG and MIDCAB, the difference is very important during left internal mammary artery (LIMA) harvesting, especially through a LAST approach, which can be difficult for the surgeon. Aim of the study: The aim of these two studies is to assess the effect of surgical approach on the mean flow in LIMA, including short and long term clinical impact for the patient. Methods: Study 1 (nonrandomized, prospective): In our study we included 60 patients,...
|
|
| |
|
|
Flow measurement using the compound weir
Sedlák, Daniel ; Duchan, David (referee) ; Žoužela, Michal (advisor)
Bachelor’s thesis is focused on issues of measurement significantly unstable by the flow rates with using of compound sharp crested weirs. The laboratory research determined three selected types of weirs. Laboratory research have been established three capacitive dependence of selected types of weirs. These dependencies are presented in tabular and graphical form.
|
|
|
Flexible Network Flow Measurement
Varga, Ladislav ; Tobola, Jiří (referee) ; Žádník, Martin (advisor)
This thesis deals with designing the probe used for measuring network flows. It contains theoretical analysis of network measurment topic, description of algorithms and principles used for network flow measurement. Emphasis on the probe architecture lies on efficient indexing algorithm and flow record flexibility, such that user is able to define format of flow record.
|
|
|
System for measuring of thermal efficiency of solar absorbers
Řiháček, Jan ; Podaný, Kamil (referee) ; Mrňa, Libor (advisor)
The thesis deals with the measurement system for determining the thermal efficiency of the newly developed types of solar absorbers. Measuring equipment allows simultaneous indoor or outdoor thermal efficiency detection of up to four samples absorbers. Emphasis is placed on the flow and heat transfer medium temperature changes. For this purpose is used Biotech FCH-m-POM-LC and LM35DZ sensors. Sensor signal is transferred to a PC using the measuring module NI USB-6221. Here it is further processed by proposed evaluation program. The software is implemented in LabVIEW integrated development environment. In a final part are performed a verification measurements to assess system performance and evaluate the thermal efficiency of various types of solar absorbers. This path is also demonstrated high efficiency applications absorbent layer coating color RABSORB 5.
|
|
| |
|
| |
|
| |
|
|
Flow measurement
Dvořák, Roman ; Uher, Miroslav (referee) ; Beneš, Petr (advisor)
Bachelor´s thesis is elaboration an analysis accessible small gas station. The base was meet possibilities in measurement of small flows and of them choose optima suitable solution, eventually occupy fit pump and process device. After the introduced theoretical analysis in the first part is continuing the second part, where finds enumeration me choice elements station with presented cause selection. After realization all part of system was at last parts effected calibration and setting process device part gas station. Resulting solving was collated with commercially accessible systems small gas station.
|
guest ::
