|
|
An Extended Model of a MEMS Gyroscope: Design and Identification
Vágner, Martin ; Sopata,, Milan (referee) ; Tůma, Jiří (referee) ; Beneš, Petr (advisor)
The thesis is aimed on measurement and modeling of MEMS gyroscopes based on input-output characteristics. The first part briefs the state of the art. The second part is dedicated to measurement methodology. Critical points and sources of uncertainty are discussed and evaluated using measurements or simulations. The last part shows key characteristics of MEMS gyroscopes based on the survey of a group of different sensor types. The results have revealed significant influence of supply voltage that causes bias drift of the gyroscope and bias drift of the internal temperature sensor. The error can be comparable to temperature drift; however, this effect is not addressed in the literature. The second observed effect is temperature dependency of angle random walk. In the last part, a general model of a MEMS gyroscope is rewritten to reflect observed effects. Moreover, the structure is selected to be easily extendable and the coefficients are expressed to allow a comparison of nominal parameters of different sensors.
|
|
|
An Extended Model of a MEMS Gyroscope: Design and Identification
Vágner, Martin ; Sopata,, Milan (referee) ; Tůma, Jiří (referee) ; Beneš, Petr (advisor)
The thesis is aimed on measurement and modeling of MEMS gyroscopes based on input-output characteristics. The first part briefs the state of the art. The second part is dedicated to measurement methodology. Critical points and sources of uncertainty are discussed and evaluated using measurements or simulations. The last part shows key characteristics of MEMS gyroscopes based on the survey of a group of different sensor types. The results have revealed significant influence of supply voltage that causes bias drift of the gyroscope and bias drift of the internal temperature sensor. The error can be comparable to temperature drift; however, this effect is not addressed in the literature. The second observed effect is temperature dependency of angle random walk. In the last part, a general model of a MEMS gyroscope is rewritten to reflect observed effects. Moreover, the structure is selected to be easily extendable and the coefficients are expressed to allow a comparison of nominal parameters of different sensors.
|
|
|
Evaluation of nutrition habits of nurses on ICU and ARW by NutriDan programme
EIGNEROVÁ, Anna
Nutrition and eating habits are one of the items of healthy lifestyle as well as mental and physical well-being. Eating should be performed on regular basis and all nutrition components have to be represented in proper proportion. The interrelation of sugars, fats (seba) and proteins is very important (55 - 60 % : 25 - 30 % : 10 - 15 %), sufficient protein ingestion (3-6 portions a day), fruit and vegetables (3 - 5 portions a day), dairy products (2 - 3 portions a day), meat and meat products (1 - 2 portions a day). Drinking liquids should be sufficient and should be kept within the range of about 30ml per 1 kg of our body weight, and of course the drinking liquids is important integral part of our nutrition. The aim of this work has been to evaluate and assess quality of eating habits of nurses working at Intensive Care Units (ICU) and Anaesthesiological Resuscitation Ward (ARW) according to NutriDan programme. In order to accomplish this aim the following four hypotheses have been postulated: H 1 The nurses working at ICU and ARW eat their meals on regular basis. H 2 The nurses working at ICU and ARW have their menus containing fruit and vegetables with ratio in accordance with recommended quantities for daily consumption (4 x 100 g). H 3 The consumption of liquids at work is lower than that out of work (at home). H 4 The interrelation of sugar, fat and proteins in nurse menus is in harmony with individual estimate of energy expenditure. Research has been outlined and drawn up as quantitative one and anonymous questionnaire (answer sheet) has been used containing 3 parts (general pat, special part and the menu mentioned above applied in time period of 24 hours). One hundred and four questionnaires (104) have been distributed in all while fifty-two (52) pieces of which have been given to nurses working at Anaesthesiological Resuscitation Ward and fifty-two (52) pieces of the questionnaire have been given to nurses working at Intensive Care Units.The aforementioned questionnaires have been distributed in three hospitals and seventy-three (73) have been received for our evaluation, of which forty-three (43) from nurses working at Anaesthesiological Resuscitation Ward and thirty (30) from nurses working at Intensive Care Units. For research data processing we have applied two programs: Microsoft Excel program and NutriDan program; the results obtained have been processed so as to be presented as graphs. The aim of the work has been fulfilled and the hypotheses 1, 2 and 4 se have been invalidated i.e. disconfirmed whereas the hypothesis 3 has been confirmed. The nurses working at Intensive Care Units and Anaesthesiological Resuscitation Ward do not eat their meals on regular basis, they often have lower energy taking, moreover they do not have correct interrelation of sugar, fat and proteins. The aforementioned nurses show lower and irregular consumption of fruit and vegetables, meat and dairy products and dietary fibre. Consumption of liquids is sufficient both at work and at home. The management of hospitals and wards as well will be made familiar with the results of this bachelor's degree diploma work i.e. those where the research has been carried out. This work can be used as a source material for lectures and enlightenment material in order to change the attitude of nurses of intensive care to eating habits of theirs.
|
|
|
The care of skin in Anaestheziology - resuscitation department and Intensive care unit
MUŽÍKOVÁ, Eva
My Bachelor Paper, focused as indicated in the title, relied on questionnaires distributed among nurses to find out whether they could access with sufficient readiness the anti-decubitus aids and hygiene agents needed for proper care of the patients. Moreover, through inconspicuous observation I tried to make sure the patients had the aids readily available. The first hypothesis, proved warranted, predicted that the nurses took proper care of the patients' skin in conformity to the relevant nursing standards. This hypothesis could be confirmed because I had a chance of reading standards used to regulate practices at the health-care facility being investigated. The nurses had available an adequate range of aids required to adjust the patients' positions, keep the patients clean and take care of their skin. The second hypothesis predicted that the ARW and ICU patients had available the anti-decubitus aids. Now, with the questionnaires reviewed and the observation completed, I can conclude that this hypothesis has been confirmed as well. I believe, the care is also dependent on sufficient supply of bedclothes available the wards and units; judging from my observation and the questionnaires returned by some selected nurses, the bedclothes are in no short supply. The occurrence of decubitus ulcers in these patients is not extremely widespread, and their injuries heal mostly per primam. The nurses try to improve their relevant qualifications by reading vocational periodicals and attending thus oriented seminars - obviously, they pay proper attention to these issues. The Paper endeavored to map the care of skin provided by nurses at the AR Ward and the IC Unit. In my opinion this objective has been met. To get a better idea of my research results, please see the related charts.
|
guest ::
