Pour voir les autres types de publications sur ce sujet consultez le lien suivant : Monitoring temperature.
Thèses sur le sujet « Monitoring temperature »
Créez une référence correcte selon les styles APA, MLA, Chicago, Harvard et plusieurs autres
Consultez les 50 meilleures thèses pour votre recherche sur le sujet « Monitoring temperature ».
À côté de chaque source dans la liste de références il y a un bouton « Ajouter à la bibliographie ». Cliquez sur ce bouton, et nous générerons automatiquement la référence bibliographique pour la source choisie selon votre style de citation préféré : APA, MLA, Harvard, Vancouver, Chicago, etc.
Vous pouvez aussi télécharger le texte intégral de la publication scolaire au format pdf et consulter son résumé en ligne lorsque ces informations sont inclues dans les métadonnées.
Parcourez les thèses sur diverses disciplines et organisez correctement votre bibliographie.
1
Richardson, Robert Raymond. « Impedance-based battery temperature monitoring ». Thesis, University of Oxford, 2016. https://ora.ox.ac.uk/objects/uuid:be4393bf-d516-4cb4-8362-82ebe7e1b78d.
Texte intégralRésumé :
Accurate on-board temperature monitoring of lithium-ion batteries is important for safety and control purposes. Impedance temperature detection (ITD) is a promising approach for temperature estimation, whereby the internal cell temperature is directly inferred from online electrochemical impedance spectroscopy (EIS) measurements at a single frequency. Previously, ITD was used to infer the volume-average cell temperature; the present work focuses on extending ITD to enable estimation of the spatially-resolved temperature distribution of cells with internal temperature gradients. Two novel hybrid methods for temperature monitoring are introduced, based on combining impedance measurements with (i) an additional surface temperature measurement, and (ii) a thermal model. These methods predict the temperature distribution of the cell in either 1-D or 2-D, and can therefore identify localised hot spots, and hence the global maximum cell temperature. In each case, the methods are experimentally validated using cylindrical LiFePO4 cells (26650 for the 1-D experiments, 32113 for the 2-D experiments) monitored with periodic 215 Hz impedance measurements, and fitted with an internal thermocouple and one or more surface thermocouples for validation. Method (i) is shown to be more accurate than a standard ITD method based on impedance measurement only: e = 0.6?C vs. 2.6?C respectively, over a 3500 s drive cycle. In method (ii), the impedance measurement forms part of a state/parameter estimation algorithm; in this case, the performance of an extended Kalman filter using impedance measurement is shown to be comparable - although slightly inferior - to an equivalent Kalman Filter using a conventional surface temperature measurement. This work also presents a novel low-order 2-D thermal model based on the spectral-Galerkin (SG) method. The model can be used in conjunction with the proposed hybrid methods or in a conventional temperature monitoring scheme. Time- and frequency domain simulations show that the SG model using as few as 4 states is capable of accurately modelling the thermal dynamics of a large format cylindrical cell with a highly transient heat generation input. The model can account for different external temperatures and/or convection coefficients at each surface - a generality which makes it suitable for simulating various battery cooling configurations.
2
Holm, Perbie. « Temperature monitoring during transport of test samples ». Thesis, Uppsala University, Department of Medical Biochemistry and Microbiology, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-6993.
Texte intégralRésumé :
Quality is the main focus in management of all laboratories. Accurate results of the analyses are not only determined by the analytical procedure but also by preanalytical factors. In the total analytical process of clinical specimens, there are many possible preanalytical sources of error. Monetoring of temperature on test samples of the transport boxes is one way to reduce the mistakes in the preanalytical phase.
In this study, four laboratories from primary health care were invited to participate. The temperature has been measured on test samples of the transport boxes being delivered to the laboratory.
In three cases the temperature remained within the limits, but in the fourth case the temperature varied more than the allowed interval. Mistakes found in the preanalytical phase, especially in the handling and processing in the process before complete distribution of test samples to laboratory. This suggests that good communication and cooperation among the personnel is the key to improvement of the laboratory quality.
3
McDannold, Nathan J. « MRI monitoring of high temperature ultrasound therapy / ». Thesis, Connect to Dissertations & ; Theses @ Tufts University, 2002.
Trouver le texte intégralRésumé :
Thesis (Ph.D.)--Tufts University, 2002.Adviser: David Weaver. Submitted to the Dept. of Physics. Includes bibliographical references (leaves 218-243). Access restricted to members of the Tufts University community. Also available via the World Wide Web;
4
Pezant, Joannes Charles. « High temperature thickness monitoring using ultrasonic waves ». Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/26577.
Texte intégralRésumé :
Thesis (M. S.)--Electrical and Computer Engineering, Georgia Institute of Technology, 2009.Committee Chair: Michaels, Jennifer; Committee Member: Jacobs, Laurence; Committee Member: Michaels, Thomas. Part of the SMARTech Electronic Thesis and Dissertation Collection.
5
Farjallah, Emna. « Monitoring of temperature effects on CMOS memories ». Thesis, Montpellier, 2018. http://www.theses.fr/2018MONTS091/document.
Texte intégralRésumé :
La complexité des systèmes électroniques ne cesse d’augmenter, tout comme la tendance actuelle de miniaturisation des transistors. La fiabilité est ainsi devenue un continuel défi. Les environnements hostiles caractérisés par des conditions extrêmes de hautes températures affectent le bon fonctionnement des systèmes. Pour les composants de stockage de données, la température est considérée comme une menace pour la fiabilité. Le développement de techniques de suivi et de contrôle devient ainsi essentiel afin de garantir la fiabilité des mémoires volatiles et non volatiles. Dans le cadre de ma thèse, je me suis intéressée à deux types de mémoires : les mémoires NAND Flash et les mémoires SRAM. Pour contrôler les effets de la température sur les mémoires Flash, une solution basée sur l’utilisation d’un timer a été proposée afin de réduire la fréquence de rafraîchissement de ces mémoires tout en continuant à garantir l’intégrité de l’information stockée. Pour les mémoires SRAM, l’effet de la température sur la vulnérabilité par rapport aux événements singuliers (SEU) a été étudiée. Une étude comparative sur l’apparition des SEU a été menée avec différentes températures pour des cellules standards 6T-SRAM et des cellules de stockage durcies (DICE). Enfin, une méthode statistique et une approximation calculatoire basées sur des opérations de vérification périodique ont été proposées afin d’améliorer le taux d’erreurs (RBER) tolérable dans des SSDs de type Entreprise à base de mémoires FlashWith the constant increase of microelectronic systems complexity and the continual scaling of transistors, reliability remains one of the main challenges. Harsh environments, with extreme conditions of high temperature and thermal cycling, alter the proper functioning of systems. For data storage devices, high temperature is considered as a main reliability threat. Therefore, it becomes essential to develop monitoring techniques to guarantee the reliability of volatile and non-volatile memories over an entire range of operating temperatures. In the frame of this thesis, I focus my studies on two types of memories: NAND Flash memories and SRAM. To monitor the effects of temperature in NAND Flash Memories, a timer-based solution is proposed in order to reduce the refresh frequency and continue to guarantee the integrity of data. For SRAM memories, the effect of temperature on Single Event Upset (SEU) sensitivity is studied. A comparative study on SEU occurrence under different temperatures is conducted for standard 6T-SRAM cells and hardened Dual Interlocked Storage Cells (DICE). Finally, statistical and computational approximation techniques based on periodic check operations are proposed in order to improve the tolerated Raw Bit Error Rate (RBER) in enterprise-class Flash based SSDs
6
Garcia-Souto, M. d. Pilar. « Temperature and comfort monitoring systems for humans ». Thesis, Queen Mary, University of London, 2012. http://qmro.qmul.ac.uk/xmlui/handle/123456789/2682.
Texte intégralRésumé :
Thermoregulation system and human body responses, both physiological (i.e. skin and core temperature) and psychological (thermal sensation and thermal comfort), have been of considerable interest to researchers. However, while reactions to extreme conditions are well understood and explained, there is a considerable knowledge gap for mild temperature range adaptation. Previous research focused on the whole body response, while local analysis is more appropriate for a new generation of intelligent thermal control systems such as needed in planes. Furthermore majority of previous studies were carried out predominantly on mannequins or with subjects placed in highly controlled lab chambers, hence adaptations in normal shared spaces is not investigated in sufficient depth. In addition, no study investigated infants’ temperature adaptation. This thesis describes the comprehensive study of the human temperature distribution in selected areas, both for adults and infants under the age of 2. Furthermore, variation of core and local skin temperature, thermal sensation and level of comfort due to long periods of inactivity were also investigated in adults. These studies have set the basis for the development of temperature monitoring systems. The first monitoring system specific to children under 2 provides fever detection based on skin temperature measurement. It was developed for a Spanish textile company (AITEX), and it is a patent under consideration. The second system monitors level of comfort and thermal sensation of adults in indoor environments. The system is based on pre-existing statistical studies and Fanger’s steady-state model. It adapts to the individual while analysing real time skin temperature distribution, and identifies.
7
Krämer, Sebastian. « Oberflächentemperaturmessungen als Methode des intraoperativen Monitorings einer endoskopisch-thorakalen Sympathikusausschaltung bei Hyperhidrosis palmo-axillaris ». Doctoral thesis, Universitätsbibliothek Leipzig, 2013. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-120306.
Texte intégralRésumé :
Objectives: Patients with hyperhidrosis suffer from an extreme perspiration that cannot be aligned with natural or situ- ational standards. Endoscopic sympathectomy is a meaningful option for palmar and axillary hyperhidrosis. A stan- dardized method of monitoring the immediate intraoperative success has not been established yet. The presented investigation shows one proposed sollution by monitoring skin surface temperature. The main aspect is to demonstrate a sig- nificant rise in temperature with utility for monitoring the immediate success of surgery. Methods: Twenty patients with primary hyperhidrosis were observed and treated in a standardized setting against a control group (n = 10). We obtained diverse data that permit determination of a point of time of measurement of surface temperature and definition of a degree of temperature variance. Results: After 5 minutes a significant change of 0.5 ̊ Celcius was noted on the palms; after 10 minutes on average 1.2 ̊ Celcius. Axillary temperature had significantly changed after 10 minutes with a mean temperature variation of 0.8 ̊ Celcius on the right side and 0.6 ̊ Celcius on the left side. Conclusions: Under consideration of appropriate time intervals of measurement and determined changes in surface temperature an early control of correct clip application in ETS is possible. In the palmar aspect an increase of 0.5 ̊ Celcius at an 5 minutes interval, and more than 1 ̊ Celcius at 10 minutes after placement of the clip as compared to basic values before application of the clip can be proposed.
8
Zachar, Ryan David. « Naval applications of enhanced temperature, vibration and power monitoring ». Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/100058.
Texte intégralRésumé :
Thesis: Nav. E., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2015.Thesis: S.M. in Engineering and Management, Massachusetts Institute of Technology, Engineering Systems Division, System Design and Management Program, 2015.
This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Cataloged from student-submitted PDF version of thesis.
Includes bibliographical references (pages 131-133).
Navy ships require reliable information regarding their power and mechanical systems in order to perform their mission effectively. While today's shipboard systems are quite sophisticated, there are areas for improvement in monitoring individual loads, managing the loads to fit the ships mission, and continuously monitoring mechanical equipment. This thesis presents a method to continuously assess the condition of a rotating machinery system using vibration analysis during the machine's spin-down. A method to determine the thermal storage capacity of a structure, so that HVAC loads can be more effectively managed, is also explained. Finally, the potential impacts of a Non-Intrusive Load Monitor (NILM) on a ship are investigated.
by Ryan David Zachar.
Nav. E.
S.M. in Engineering and Management
9
Ye, Guoliang. « Model-based ultrasonic temperature estimation for monitoring HIFU therapy ». Thesis, University of Oxford, 2008. http://ora.ox.ac.uk/objects/uuid:6f4c4f84-3ca6-46f2-a895-ab0aa3d9af51.
Texte intégralRésumé :
High Intensity Focused Ultrasound (HIFU) is a new cancer thermal therapy method which has achieved encouraging results in clinics recently. However, the lack of a temperature monitoring makes it hard to apply widely, safely and efficiently. Conventional ultrasonic temperature estimation based on echo strain suffers from artifacts caused by signal distortion over time, leading to poor estimation and visualization of the 2D temperature map. This thesis presents a novel model-based stochastic framework for ultrasonic temperature estimation, which combines the temperature information from the ultrasound images and a theoretical model of the heat diffusion. Consequently the temperature estimation is more consistent over time and its visualisation is improved. There are 3 main contributions of this thesis related to: improving the conventional echo strain method to estimate temperature, developing and applying approximate heat models to model temperature, and finally combining the estimation and the models. First in the echo strain based temperature estimation, a robust displacement estimator is first introduced to remove displacement outliers caused by the signal distortion over time due to the thermo-acoustic lens effect. To transfer the echo strain to temperature more accurately, an experimental method is designed to model their relationship using polynomials. Experimental results on a gelatine phantom show that the accuracy of the temperature estimation is of the order of 0.1 ◦C. This is better than results reported previously of 0.5 ◦C in a rubber phantom. Second in the temperature modelling, heat models are derived approximately as Gaussian functions which are mathematically simple. Simulated results demonstrate that the approximate heat models are reasonable. The simulated temperature result is analytical and hence computed in much less than 1 second, while the conventional simulation of using finite element methods requires about 25 minutes under the same conditions. Finally, combining the estimation and the heat models is the main contribution of this thesis. A 2D spatial adaptive Kalman filter with the predictive step defined by the shape model from the heat models is applied to the temperature map estimated from ultrasound images. It is shown that use of the temperature shape model enables more reliable temperature estimation in the presence of distorted or blurred strain measurements which are typically found in practice. The experimental results on in-vitro bovine liver show that the visualisation on the temperature map over time is more consistent and the iso-temperature contours are clearly visualised.
10
Konchuba, Nicholas. « Temperature Compensation Improvements for Impedance Based Structural Health Monitoring ». Thesis, Virginia Tech, 2011. http://hdl.handle.net/10919/44455.
Texte intégralRésumé :
Structural Health Monitoring is a useful tool for reducing maintenance costs and improving the life and performance of engineering structures. Impedance-Based SHM utilizes the coupled electromechanical behavior of piezoelectric materials to detect adverse changes and material and mechanical failures of structures. Environmental variables such as temperature present a challenge to assessing the veracity of damage detected through statistical modeling of impedance signals. An effective frequency shift method was developed to compensate impedance measurements for changes resulting from environmental temperature fluctuations. This thesis investigates how the accuracy of this method can be improved and be applied to a 100oF range of temperatures. Building up the idea of eliminating temperature effects from impedance measurements, this thesis investigates the possibility of using statistical moments to create a temperature independent impedance baseline.Master of Science
11
Trontz, Adam J. « Metal-Ceramic Coaxial Cable Sensors for Distributed Temperature Monitoring ». University of Cincinnati / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1522165065943505.
Texte intégral
12
Sving, Andreas. « Investigation of High-Temperature Sensors for Tube Monitoring Applications ». Thesis, Uppsala universitet, Solcellsteknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-434360.
Texte intégralRésumé :
This report covers the investigation of the next generation of sensors to be used in the sensor based tube system known as SentusysTM. One essential feature of the next generation of sensors is high-temperature endurance. The sensors (strain gauges and thermocouples) have been produced by means of thermal spraying techniques, short-pulse laser ablation and laser cladding. It has been found that the sensors seem to work in general, however, much research and development remain.
13
Nilsson, Joakim. « Wireless, Single Chip, High Temperature Monitoring of Power Semiconductors ». Licentiate thesis, Luleå tekniska universitet, EISLAB, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-18113.
Texte intégralRésumé :
Because failures in power electronics can cause production stops and unnecessary damage to interconnected equipment, monitoring schemes that are able to predict such failures provide various economic and safety benefits. The primary motivation for this thesis is that such monitoring schemes can increase the reliability of energy production plants. Power semiconductors are crucial components in power electronics, and monitoring their temperatures yields information that can be used to predict incipient failures.This thesis presents a system concept for wireless, single-chip, high-temperature monitoring of power semiconductors. A wireless single-chip solution is both cost effective and easy to integrate with existing power semiconductor modules. However, the concept presents two major challenges: the implementation of wireless power and communication, and the low-power design of the temperature sensors. Thus, the feasibility of using on-chip coils to provide communication with and obtain power from an external reader coil is assessed, and a low-power, high-temperature bandgap temperature sensor is developed. The sensor is capable of operating in the high-temperature range, allowing it to be useful for detecting incipient faults, particularly solder faults, at up to 230 °C. This is achieved by compensating for leakage currents that arise in hot reverse-biased p-n junctions, which become significant at these high temperatures.A single-chip, on-chip coil solution provides the combined advantages of galvanic isolation from the power device and simplicity of integration in existing modules. However, as the use of a wireless design with a small on-chip coil will limit the amount of available power, it incurs the disadvantage of requiring a low-power design for the sensor. Initial experiments have been performed on a prototype on-chip coil to assess the feasibility of this concept and provide insight into the challenges of on-chip coil design.In this thesis, focus is placed on the challenge of how to handle large leakage currents in low-power integrated silicon circuits. At high temperatures, these leakage currents can approach or even surpass the level of the circuit's quiescent current. Earlier work on leakage current compensation techniques is examined, compared to and combined with a compensation technique designed to compensate for collector-base leakage in the main bipolar pair of a Brokaw bandgap reference. Experiments show that fully analogue sensors operating at up to 228 °C with an accuracy of 10 °C that consume only 8.2 µW are feasible. If a higher accuracy, such as 3 °C, is required, then a temperature range of up to 200 °C can be achieved with a power consumption of 2.3 µW.It is likely that the high temperature range and low power consumption of the sensors presented in this thesis, in combination with on-chip coils, will make them suitable for use in solder fault prediction in power semiconductor modules.Godkänd; 2016; 20160304 (joanil); Nedanstående person kommer att hålla licentiatseminarium för avläggande av teknologie licentiatexamen. Namn: Joakim Nilsson Ämne: Industriell Elektronik/Industrial Electronics Uppsats: Wireless, Single Chip, High Temperature Monitoring of Power Semiconductors Examinator: Docent Jonny Johansson, Institutionen för system- och rymdteknik, Avdelning: EISLAB, Luleå tekniska universitet. Diskutant: Docent Johan Sidén, Avdelningen för Elektronikkonstruktion, Mittuniversitetet, Sundsvall. Tid: Tisdag 3 maj, 2016 kl 8.30 Plats: A1547, Luleå tekniska universitet
14
Mayet, Y. « Remote sensing of body temperature in dairy cows ». Thesis, University of Newcastle Upon Tyne, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.254066.
Texte intégral
15
McDonald, Hazel A. « Monitoring, interpreting and predicting temperature effects in concrete box girder bridges ». Thesis, University of Strathclyde, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.248559.
Texte intégral
16
Morvillez, Thierry. « Monitoring temperature variability along the California Coast using Acoustic Tomography ». Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1997. http://handle.dtic.mil/100.2/ADA341180.
Texte intégralRésumé :
Thesis (M.S. in Physical Oceanography) Naval Postgraduate School, September 1997."September 1997." Thesis advisor(s): Ching-Sang Chiu, Curtis A. Collins. Includes bibliographical references (p. 35-36). Also available online.
17
Venardou, Eleni. « Spectroscopic reaction monitoring in water under high temperature and pressure ». Thesis, University of Nottingham, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.404782.
Texte intégral
18
Qin, Dong. « HAND-ARM VIBRATION EXPOSURE MONITORING WITH SKIN TEMPERATURE AND PHOTOPLETHYSMOGRAPHY ». Case Western Reserve University School of Graduate Studies / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=case1492098556166678.
Texte intégral
19
Stetten, George, Fred Koontz, Christine Sheppard et Charles Koontz. « TELEMETRIC EGG FOR MONITORING NEST MICROCLIMATE OF ENDANGERED BIRDS ». International Foundation for Telemetering, 1990. http://hdl.handle.net/10150/613481.
Texte intégralRésumé :
International Telemetering Conference Proceedings / October 29-November 02, 1990 / Riviera Hotel and Convention Center, Las Vegas, NevadaA series of artificial eggs has been developed for the New York Zoological Society to measure conditions in the nest of the white-naped crane (Grus Vipio). Investigations undertaken at the Bronx Zoo have endeavored to improve artificial incubation of the eggs of endangered species of birds. Artificial eggs were constructed and camouflaged so that a pair of birds would accept and incubate them. Inside each counterfeit egg, a radio telemetry transmitter was hidden to report on the temperature and humidity in the nest and the orientation of the egg itself with respect to gravity.
20
Kotačka, Aleš. « Monitoring teploty ». Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2008. http://www.nusl.cz/ntk/nusl-235445.
Texte intégralRésumé :
This master's thesis deals use FITkit for longtime temperature monitoring without necessity connection on PC. Describe possibilities connection different heat-sensitive elements to FITkit inclusive physical realization. Further this thesis deals with measuring of temperature, displaying temperature and saving to memory, blocks-partitioning of memory. Is defined communication protocol between FITkit and PC for bulk downloading of data. So are solving problems with saving measure data to text files and next processing in table processors.
21
Anand, Ajay. « Noninvasive temperature estimation technique for HIFU therapy monitoring using backscattered ultrasound / ». Thesis, Connect to this title online ; UW restricted, 2005. http://hdl.handle.net/1773/5867.
Texte intégral
22
Hollis, Veronica Swayne. « Non-invasive monitoring of brain tissue temperature by near-infrared spectroscopy ». Thesis, University College London (University of London), 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.399343.
Texte intégral
23
Kakuru, George Bamuturaki. « Design of on-chip monitoring circuits for clock delay and temperature ». Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/105997.
Texte intégralRésumé :
Thesis: M. Eng., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2016.This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Cataloged from student-submitted PDF version of thesis.
Includes bibliographical references (pages 81-82).
As devices continue to scale, Process, Voltage and Temperature (PVT) variations tend to have a bigger impact on circuit performance. The ability to measure this impact provides essential knowledge about the circuit's current performance and opens the door to compensation techniques. Off-chip measurement circuits are usually of limited bandwidth and load the measured circuit, thus affecting the measurement result. Onchip circuits on the other hand have the potential for high bandwidth and, if designed well, have small area and can be incorporated into different parts of the chip. For this project a delay and temperature measurement circuit is designed. The delay measurement circuit relies on a method called Code Density Test (CDT), a statistical method which involves counting the number of asynchronous edges that occur within the relative delay of two synchronous clocks. The temperature measurement circuit converts temperature to a delay which can then be measured by the CDT circuit.
by George Bamuturaki Kakuru.
M. Eng.
24
TORRES, Jaire Marinho. « Biomonitoramento de uma grande congregação de morcegos no Parque Nacional do Catimbau, Pernambuco ». Universidade Federal de Pernambuco, 2016. https://repositorio.ufpe.br/handle/123456789/17456.
Texte intégralRésumé :
Submitted by Irene Nascimento (irene.kessia@ufpe.br) on 2016-07-18T18:58:45Z
No. of bitstreams: 2
license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5)
Dissertação Corrigida Jaire Marinho Torres.pdf: 2656629 bytes, checksum: 99082c3a86f3f9422d48ca1336d16108 (MD5)Made available in DSpace on 2016-07-18T18:58:45Z (GMT). No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Dissertação Corrigida Jaire Marinho Torres.pdf: 2656629 bytes, checksum: 99082c3a86f3f9422d48ca1336d16108 (MD5) Previous issue date: 2016-02-25
Os morcegos são um dos grupos de mamíferos mais amplamente distribuído e diverso do mundo. A variação da ordem Chiroptera pode ser exemplificada por seus hábitos alimentares, quesito em que somente a saprofagia não é contemplada. Essa variedade é verificada também na utilização de abrigos, pois exploram desde abrigos naturais até artificiais. Os abrigos são particularmente importantes, pois é neles que os morcegos passam a maior parte de suas vidas, em pequenos grupos ou em grandes congregações com milhões de indivíduos. As cavernas são os abrigos mais estáveis, e comumente utilizados por grandes colônias. Entretanto, as cavernas desconhecidos quando se trata dos morcegos brasileiros, o que é preocupante devida à elevada diversidade da quiropterofauna brasileira. É necessário conhecer essas grandes congregações cavernícolas, pois grandes agrupamentos biológicos são considerados potenciais indicadores das mudanças climáticas do planeta. Mas essa não é uma tarefa fácil, pois o monitoramento dessas populações é inviável pelos métodos de estimativa tradicionais, como manual ou estimativa pela densidade de indivíduos. Considerando-se o cenário atual da pesquisa com morcegos cavernícolas, a proposta dessa dissertação é explorar questões básicas sobre sua ecologia, como aspectos de sua história natural em monitoramento de longo prazo e respostas às variações climáticas de temperatura, umidade e pluviosidade. Para isso foi necessário desenvolver um método de estimativa automatizada de morcegos, que também será apresentado. O objeto de estudo é a congregação abrigada na caverna “Meu Rei”, no Parque Nacional do Catimbau, Tupanatinga/PE. Esses animais são particularmente interessantes, pois estimativas iniciais apontaram milhares de indivíduos, abrigados em um ambiente climaticamente extremo extremas como a Caatinga. O monitoramento ocorreu entre Outubro de 2014 e Setembro de 2015, com censos mensais no abrigo e coleta de dados climáticos. A congregação apresentou grande variação ao longo do monitoramento, entre 188 e 129074 animais, estimados por um sistema automatizado com erro médio de 20,05±16,88%. Foram registradas oito espécies nesta comunidade, com representantes de cinco guildas alimentares. Algumas das espécies são constantes na caverna, mas outras parecem usar a caverna apenas durante períodos reprodutivos, sendo que sete das oito espécies foram encontradas com indícios reprodutivos. Essa presença pode se relacionar com a estabilidade climática do abrigo em relação ao ambiente externo, evitando-se a influência de alterações climáticas já que a temperatura e pluviosidade nas quinzenas anteriores aos censos influenciaram a abundância no abrigo. Os morcegos ainda influenciam o microclima da caverna, alterando a temperatura e umidade do interior. Esses dados contribuem ao conhecimento da quiropterofauna, demonstrando sua importância na manutenção do abrigo e sua resposta às variações no clima do ambiente. Além disso, o sistema de estimativa apresentado alavanca a introdução de censos automatizados e padronizados de morcegos, com monitoramentos mais precisos. Esse monitoramento é necessário para tomadas de decisões para a conservação dos grupos de morcegos, que são potenciais prestadores de serviços ambientais na área.
Bats are the most widely distributed and diverse among mammals group in the world. The variation of Chiroptera order can be exemplified by their feeding habits which only saprofagy is not contemplated. Moreover, this variation can be observed by use of shelters. Bats can explore natural or artificial shelters. Shelters are particularly important, since bats spend most of their lives at shelters in small groups or in large congregations with millions of individuals. Caves are the most stable shelter, and commonly used by large colonies. However, the diversity of bats in Brazilian caves are still unknown. The knowledge about this diversity should be important since large groups of bats are considered potential biological indicators of climate change. It is a challenge monitoring these populations, and it is not feasible by traditional estimation methods such as manual or estimate the density of individuals. Considering the importance of that knowledge on cave bats, the purpose of this study is to explore basic questions about bat’s ecology. This investigation has goal to discuss aspects of the natural history of bats in long-term monitoring, and their responses to climate variations, such as temperature, humidity and rainfall. For this reason, it was necessary to develop a bat’s automated estimate method. The congregation sheltered in "My King" cave at Catimbau National Park, Tupanatinga / PE is the object of this study. The initial estimates showed thousands of individuals housed in a climatically extreme environment such as Caatinga. We made the monitoring between October 2014 and September 2015, with monthly censuses in the shelter and collecting weather data. The congregation showed great variation over monitoring, between 188 and 129 074 animals, estimated by an automated system with an average error of 20.05 ± 16.88%. Eight species were recorded, with representatives from five feeding guilds. Some species are listed in the cave, but others seem to use the cave during breeding seasons, and seven of the eight species were found with reproductive indications. This presence can relate to climate stability of the barn compared to the external environment, avoiding the influence of climate change since the temperature and rainfall in previous fortnights to censuses influenced the abundance in the shelter. Bats also influence the microclimate inside the cave by changing the temperature and humidity. Our data contribute to the knowledge of chiropterofauna showing the importance of bats maintaining the shelter and its response to variations in the ambient climate. Moreover, the presented estimation system leverages the introduction a more precise monitoring way, by using automated and standardized bat's census. This monitoring is important for decision makers, considering conservation of bats groups, which are potential environmental service providers in the area.
25
Howard, Panit. « High Temperature Seismic Monitoring for Enhanced Geothermal Systems - Implementing a Control Feedback Loop to a Prototype Tool by Sandia National Laboratories ». Thesis, Virginia Tech, 2012. http://hdl.handle.net/10919/32891.
Texte intégralRésumé :
Geothermal energy can make an important contribution to the U.S. energy portfolio. Production areas require seismic monitoring tools to develop and monitor production capability. This paper describes modifications made to a prototypical seismic tool to implement improvements that were identified during previous tool applications. These modifications included changing the motor required for mechanical coupling the tool to a bore-hole wall. Additionally, development of a closed-loop process control utilized feedback from the contact force between the coupling arm and bore-hole wall. Employing a feedback circuit automates the tool deployment/anchoring process and reduces reliance on the operator at the surface. The tool components were tested under high temperatures and an integrated system tool test demonstrated successful tool operations.Master of Science
26
Hilton, Moira. « Passive emission monitoring of remote combustion gases using Fourier transform infrared spectroscopy ». Thesis, University of Reading, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.262592.
Texte intégral
27
Dixit, Bhanumathi (Bonnie). « A temperature monitoring cushion for preventing the formation of ischial decubitus ulcers ». Thesis, Georgia Institute of Technology, 1988. http://hdl.handle.net/1853/14928.
Texte intégral
28
Adlam, Leah Seree. « Soil climate and permafrost temperature monitoring in the McMurdo Sound region, Antarctica ». The University of Waikato, 2009. http://hdl.handle.net/10289/2764.
Texte intégralRésumé :
A soil climate monitoring network, consisting of seven automated weather stations, was established between 1999 and 2003 in the McMurdo Sound region of Antarctica. Soil temperature, soil water content, air temperature, relative humidity, solar radiation, and wind speed and direction are recorded hourly and downloaded annually. Two 30 m deep permafrost temperature monitoring boreholes were established adjacent to the soil climate stations in the Wright Valley and at Marble Point in January 2007. Sixteen thermistors (accurate to ±0.1°C) were installed in each borehole measuring temperature once every hour and recording the mean every six hours. One year of permafrost temperatures were available (January 2007 to January 2008). The overall aim of this thesis was to make use of the soil climate monitoring database from 1999 to 2007 to investigate Antarctic soil climate. Active layer depth (depth of thawing) varied inter-annually, with no significant trend between 1999 and 2007. The active layer increased with decreasing latitude (R2 = 0.94), and decreased with increasing altitude (R2 = 0.95). A multiple regression model was produced whereby active layer depth was predicted as a function of mean summer air temperature, mean winter air temperature, total summer solar radiation and mean summer wind speed (R2 = 0.73). Annual temperature cycles were observed at all depths in the boreholes. At Marble Point, an annual temperature range of lt;1°C occurred at 15.2 m, lt;0.5°C at 18.4 m and lt;0.1°C at 26.4 m and at Wright Valley, an annual temperature range of lt;1°C occurred at 14.0 m, lt;0.5°C at 17.2 m and lt;0.1°C at 25.2 m. Given that the depth of Zero Annual Amplitude determined depends on the sensitivity of the measurement method, it is suggested that instead of referring to a depth of Zero Annual Amplitude , the depth at which the annual temperature range is less than a given value is a more useful concept. Mean annual and mean seasonal air and soil temperatures varied inter-annually and there was no significant trend of warming or cooling over the 1999 - 2007 period. Mean annual air temperatures were primarily influenced by winter air temperatures. Mean annual and mean summer soil temperatures were warmer than air temperatures due to heating by solar radiation. Mean summer air temperatures correlated well with the Southern Annular Mode Index (SAMI) at all sites (0.61 lt; R2 lt; 0.73) except Victoria Valley; however there was no correlation between mean annual or mean winter temperatures and the SAMI. Air temperature was linearly correlated with near-surface soil temperature (1.3 - 7.5 cm) (R2 gt; 0.79). Near-surface soil temperature was strongly correlated with incoming solar radiation at Victoria Valley (0.14 lt; R2 lt; 0.76) and Granite Harbour (0.49 lt; R2 lt; 0.82), but was not significantly correlated at other sites (0 lt; R2 lt; 0.57). There was no significant correlation between air temperature and wind speed, air temperature and solar radiation and near-surface soil temperature and wind speed, despite occasions of strong correlation on the diurnal time scale. Diurnal summer cycles in air and soil temperatures were driven by solar radiation. Multiple regressions combining the effects of air temperature, solar radiation and wind speed approximated near-surface soil temperatures well at every site during both summer and winter (0.88 lt; R2 lt; 0.98).
29
Xiong, Weizhen. « Development of solid-state NO2 sensor for monitoring high temperature process emission ». Thesis, University of Leeds, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.439603.
Texte intégral
30
Becker, Kaitlyn P. (Kaitlyn Patricia). « Reliability of torque and temperature feedback for an autonomous glass monitoring system ». Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/54197.
Texte intégralRésumé :
Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2009.This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Cataloged from student submitted PDF version of thesis.
Includes bibliographical references (p. 30).
Automated pipe turners used in glassblowing studios are limited in their application by the duration a blown glass piece can be left unattended. An autonomous monitoring system can increase the usefulness of pipe turners in small studio and hobby settings, enabling glassblowers to work more independently. An initial feasibility study for an autonomous system has been performed by using two parameters, temperature measured by an IR thermometer and torque measured via the current drawn by a dc motor, to monitor glass blown objects during their production. The intended use of the system is for a glassblowing-pipe turning machine designed to keep a blown glass object centered about its axis of rotation and to keep the object heated within a set temperature range. Temperature data was collected with a handheld IR thermometer for static and rotating samples with varying color additives and optic qualities. Some variation and noise was present in the temperature data, but the results were consistent enough to be readily implemented in an automated monitoring system. Torque feedback was monitored by recording the variation in current drawn by a dc motor that was mounted in a drive system to turn a glassblowing pipe. When a pipe carrying a misaligned piece was inserted in the drive system the data showed a recognizable oscillation corresponding to the varying torque due to gravitational forces on the rotating blown glass piece. This confirms that using the current drawn by the motor as alignment feedback will be feasible in an autonomous pipe turner.
(cont.) This work can now be extended to modify the drive system that was used for testing to allow control of the axial position of the pipe and to integrate a digital micro controller which will be programmed to use the temperature and torque feedback to control the drive system.
by Kaitlyn P. Becker.
S.B.
31
Rabhiou, Abderahman. « Phosphorescent thermal history sensing for advanced condition monitoring in high temperature environment ». Thesis, Imperial College London, 2012. http://hdl.handle.net/10044/1/39125.
Texte intégralRésumé :
Knowledge of the temperatures surfaces are exposed to is crucial in many processes, particularly above 300°C. It is often not possible to measure temperature of all surfaces of interest in real-time. Off-line temperature measurement techniques can be used to record exposure temperatures in such a way that these can be retrieved later off-line, at room temperature. Thermal paint changes colour or surface properties permanently, depending on the maximum temperature they have been exposed to. Thermal paints have been a valuable tool of engine developers for many years, but the use of the existing paints presents a number of challenges if reliable results are to be obtained. Feist et al. [1] proposed a thermal history sensor based on phosphors that undergo permanent changes in their luminescence properties when exposed to high temperatures. These luminescence properties can be interrogated with a light source and measured with standard spectroscopic instrumentation. Phosphorescent thermal history sensors might be applied as paint, coating or as point-sensors. The proposed concept has several advantages over the existing sensors. As the main embodiment is a paint or coating, the proposed sensor would be a direct competing technology to thermal paints. The present study reports on the three main concepts responsible for the permanent changes in some phosphors that have been identified. The mechanisms behind these concepts are outlined and examples are given of phosphors which could be used as sensors. The amorphous-to-crystalline and the thermal damaging concepts were demonstrated in laboratory tests in this work. An extensive characterisation of the luminescence properties dependency on thermal history was conducted on several phosphors: BAM : Eu, BAM : Eu;Mn, Y2O2S : Eu, SrAl2O4 : Eu, Y2SiO5 : Tb, Y AG : Dy and Y SZ=Y AG : Dy. Calibration curves of powder, paint and/or coating embodiments of these phosphors are presented. The amorphous-to-crystalline concept revealed to be the most promising for the application as thermal history sensor, covering a temperature range from 300°C to 1300°C. The amorphous-to-crystalline phosphor Y2SiO5 : Tb was synthesised by sol-gel technique and applied as a paint on a stainless steel disk, which was subsequently exposed to a jet impinging flame. A luminescence readout of the paint after the exposure to the flame revealed a map of temperatures between 300°C and 800°C. The paint was able to highlight the asymmetrical set-up of the impinging flame. The phosphor Y SZ=Y AG : Dy was APS-coated on a rotating turbine blade and inner flame tube of a Rolls-Royce Viper 201 jet engine, which was operated for several hours. Temperature profile maps were obtained after interrogation of the luminescence changes of the coating. These revealed that the probed surface of inner flame tube was exposed to temperatures generally not exceeding than 500°C, apart from local hotspots of 700°C located above the dilution holes. The interrogation of the turbine blade indicated the areas cooled by air streams and maximum temperatures in excess of 800°C.
32
Flodquist, Gail Linnea. « MEASUREMENT OF TOE TEMPERATURE AS AN EARLY INDICATOR OF ALTERATIONS IN PERIPHERAL PERFUSION (MONITORING, SHOCK) ». Thesis, The University of Arizona, 1985. http://hdl.handle.net/10150/275349.
Texte intégral
33
Lee, Sang-Bin. « Sensorless stator winding temperature estimation for induction machines ». Diss., Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/14719.
Texte intégral
34
Solorio, Rigoberto. « A WEB-BASED TEMPERATURE MONITORING SYSTEM FOR THE COLLEGE OF ARTS AND LETTERS ». CSUSB ScholarWorks, 2015. https://scholarworks.lib.csusb.edu/etd/129.
Texte intégralRésumé :
In general, server rooms have restricted access requiring that staff possess access codes, keys, etc. Normally, only administrators are provided access to protect the physical hardware and the data stored in the servers. Servers also have firewalls to restrict outsiders from accessing them via the Internet. Servers also cost a lot of money. For this reason, server rooms also need to be protected against overheating. This will prolong the lifecycle of the units and can prevent data loss from hardware failure.
The California State University San Bernardino (CSUSB), Specifically the College of Arts and Letters server room has faced power failures that affected the Air Conditioning Unit (AC) and as a result the room became overheated for a long time, causing hardware failure to server units. This is why this project is important for the College and needs to be implemented as soon as possible.
The administrator’s old method of controlling server room temperature was by manually adjusting the temperature box inside of the server room. Now it can be controlled and monitored using remote access.
The purpose of A Web-Based Temperature Monitoring System for the College of Arts and Letters proposed in this project is to allow users to monitor the server room temperature through a website by using any computer or mobile device that has Internet access. Also, this system notifies users when the room attains a critical temperature by sending an email/text to the server room administrator.
A Web-Based Temperature Monitoring System for the College of Arts and Letters project is for the exclusive use of the College of Arts & Letters (CAL) server room. The administrator is the only person that can grant access to others by creating a proper account.
For this project three prototypes will be implemented, first to measure the current server room temperature, the second to show the temperature history of the room, and third to use the built-in search system to locate times that given temperatures were attained.
35
Elrubaiy, Meream, et Meream Elrubaiy. « Remote Temperature Monitoring of Electronic Systems : Remote Temperature Monitoring of Electronic Systems ». Thesis, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-12972.
Texte intégral
36
Xie, Guo-Xing, et 謝國興. « Remote Temperature Monitoring System ». Thesis, 2015. http://ndltd.ncl.edu.tw/handle/09040972619023333961.
Texte intégralRésumé :
碩士聖約翰科技大學
電機工程系碩士班
103
Industrial equipment malfunction without warning often caused significant damage to the factory and even led to an industrial safety event. One of the important signs of equipment malfunction is the abnormal temperature rise. The main purpose of this thesis is to develop a multi-point remote temperature monitoring system using ZigBee wireless communication to deliver the latest temperature data of equipment to the host computer. The system uses platinum resistance thermometers as the temperature sensing components to measure the surface temperature of equipment. A voltage/temperature transformation circuit is developed to transform the measured voltage signal into a digital temperature signal. The digital temperature signal is then delivered to a ZigBee wireless communication module through a RS-485 to RS-232 interface. Then the digital temperature signal can be received to the host computer via received node ZigBee module. In the work, a graphical monitoring system will also be established in the host computer using Visual Basic software to create an easy use man-machine interface. Historical temperature records in the host computer can be inquired. IF the temperature of equipment exceeds the set alarm value, the alarm system will be activated. This thesis aims to achieve an automatic monitoring and meet the trend of modern industrial, which is warning in advance to prevent damage first.
37
Jung, Li-Been, et 姜禮賓. « Intelligent Wireless Temperature Monitoring System ». Thesis, 2016. http://ndltd.ncl.edu.tw/handle/80388766664511270405.
Texte intégralRésumé :
碩士健行科技大學
資訊工程系碩士班
104
Temperature monitoring in medical engineering, electrical machinery industry, green energy industry, factory boilers and aquaculture farmers and fishermen, can see its application, but expensive data acquisition card, wireless transmission equipment and monitoring systems, making the system easy to establishment . In the present study, we will develop a set of real-time wireless temperature monitoring system, the system''s hardware and software are made using a simple to implement this system, the system line by the temperature sensing element AD590, ADC0804 analog switch digital chip circuit, 8051 single chip microprocessor circuits, RF wireless transceiver module, a combination of PC and PC-based man-machine control interface is made not only cheap and easy to implement, nor large measurement error. System consists of temperature sensing circuit to capture analog temperature signal, the A / D converter circuit to convert to digital transmission of signals to a single-chip microprocessor circuit sampling, analysis, storage and then transmitted through the serial port RS232 interface signals to RF wireless module then transmitted by RF wireless module to the far-RF wireless module receives, and then transfer the information received by the RS232 interface gives local computer via RF wireless module, storage, analyzing, after the return control signal to the remote end of the judgment data acquisition module, the results in light display and control action to achieve the purpose of real-time monitoring, the latter if the program is fully automated, it can further achieve unmanned high security temperature monitoring function. Using this system can effectively control the temperature of the distal end of the machine, humidity, voltage, current, pressure, and other important analog signal, and achieve security and safety of personnel save a lot of human resources, cost, test results show that the system can immediately display the temperature status and the return signal, the successful implementation of the distal end of the warning display and security.
38
Huang, Bo-Jyun, et 黃柏鈞. « Cloud Temperature and Humidity Monitoring System ». Thesis, 2017. http://ndltd.ncl.edu.tw/handle/jmrt9m.
Texte intégralRésumé :
碩士國立勤益科技大學
電子工程系
105
Temperature and humidity is a key factor in many areas such as material processing, indoor cultivation, food processing, etc. In other words, temperature and humidity may seriously affect the quality of production. As a result, it must be checked and recorded carefully that need manpower. This paper proposes a cloud temperature and humidity monitoring system based on IOT approach. Firstly, the temperature and humidity can be detected and input to the microprocessor via the sensor circuit. The collected data can be then transmitted to the computer using Wi-Fi module. Finally, it can be uploaded to the server database (MySQL). From the web, all data can be displayed and tracked using PHP. The experimental results show that the proposed system is reliable and convenient to operate.
39
HUANG, YI-CHUN, et 黃奕尊. « Non-Invasive Pipeline Fluid Temperature Monitoring ». Thesis, 2017. http://ndltd.ncl.edu.tw/handle/13032479325585412755.
Texte intégralRésumé :
碩士聖約翰科技大學
電機工程系碩士在職專班
105
Pipeline fluid temperature monitoring plays an important role in the safety monitoring for modern factory. This thesis presents a non-invasive pipeline fluid temperature monitoring technology. The technology adopts the surface temperature measurement with the heat transfer calculation to calculate the center temperature of the pipeline fluid. This research uses a banding type temperature sensor, which is based on a patented product- Flexible Surface Temperature Sensor (FSTS), to conduct experiment. Moreover, this thesis investigates the difference between the banding type temperature sensor and the conventional temperature measurement rod. The proposed technology can improve the shortcomings of conventional fluid temperature measurement method, achieving a more convenient and more efficient pipeline fluid temperature monitoring.
40
Chen, Kuan-Ku, et 陳冠谷. « Temperature Monitoring and Control Design for PCB ». Thesis, 2004. http://ndltd.ncl.edu.tw/handle/56373001115742767100.
Texte intégralRésumé :
碩士國立交通大學
電機與控制工程系所
93
With the improvement of process, the volume of chips becomes smaller as time evolves. It directly increases the power density of the electronic component. As a result, the key point of raising the reliability of the whole system and developing high-efficiency chip is how to monitor the temperature IC for real-time protection. In this study, we propose a new method to be able to monitor a point on the PCB board without sensor by using the matrix calculation and mapping of sensors build in other locations of the PCB board. In addition to reduce the amount of sensors by using such an approach, we can monitor the temperature at which it is difficult to put sensor on. With the temperature estimation model, we can turn on the Peltier Module (TE) to set up a temperature control scheme for making the chip to work in the most appropriate temperature with better performance.
41
Malindi, Phumzile. « Electrocardiogram, heart rate and temperature monitoring system ». Thesis, 2000. http://hdl.handle.net/10321/1812.
Texte intégralRésumé :
Dissertation submitted in compliance with the requirements for Masters Degree in Technology in the Department of Electrical Engineering, Technikon Natal, 2000.The purpose of this study is the development of an affordable computer-based electrocardiogram, heart rate and temperature monitoring system, that would complement those that are available on the market and contribute to the reduction of the shortage of these medical instruments in South African hospitals and clinics. Electrocardiogram (ECG) refers to the graph that results from time versus voltage in a patient's chest. It reflects the rhythmic activity of the heart. For this reason the electrocardiogram has a diagnostic value that can be used by medical personnel to examine the biological (hence, clinical) behavior of the heart. The electrocardiogram can also be used to get the heart rate. This thesis explained how to acquire ECG signals from the patient and also how to achieve a cheaper way of providing galvanic isolation, which is required for sensors that are attached to the human body. It also explains computer interfacing using the parallel port and computer-based processing of these ECG signals to determine the instantaneous value of the heart rate and also to reduce the interference that contaminates these signals. In reducing interference, the performance of traditional IIR notch and adaptive filters, as noise cancelers, has been analyzed and compared. Least Mean Squares (LMS) and Normalized Least Mean Squares (NLMS) algorithms are the two algorithms that were considered in this study for adaptive noise canceling and their performance is evaluated and is compared based on their convergence rate, complexity and noise reduction.
M
42
Jhang, Jyun-Yu, et 張鈞淯. « Temperature Measuring System for Indoor Objects Monitoring ». Thesis, 2015. http://ndltd.ncl.edu.tw/handle/91809080272285619828.
Texte intégralRésumé :
碩士國立勤益科技大學
資訊工程系
103
Smart Factory of Industry 4.0 is the trend of globalization and the monitoring system is more important than the others. The normal temperature sensor can only detect ambient temperature, when the abnormal temperature is sensing, the disaster has occurred. In this paper, we design a temperature monitoring system with MLX90620 multi-element infrared thermopile sensors and the stepping motor to achieve surface temperature measurement of indoor objects. When the measuring temperature reaches the threshold, the monitoring system will send message and E-mail to notify users. All the measuring data will transmit to the cloud server, it is easy to read and search history data by web. The effective detection range of the temperature for the system is from –50℃ to 300℃. The measuring error of temperature is confined to ±1℃.
43
Yang, Chang-Chieh, et 楊長杰. « Implementation of Temperature Monitoring System for Dried Tofu ». Thesis, 2017. http://ndltd.ncl.edu.tw/handle/386kk8.
Texte intégralRésumé :
碩士國立彰化師範大學
電機工程學系
105
Dried tofu is a commonly seen tofu food product on the market. During production of dried tofu, the water content is extremely high. This is not ideal for long term preservation. This paper will discuss the production cycle for the long term preservation of dried tofu, delving into not only packaging material, but also humidity and temperature controls to achieve goals. This paper aims to create a solid procedure for producing dried tofu. Water in dried tofu can speed up the decomposing processes, therefore, lowering food quality. To prevent excess moister from being incurred during the packaging process, cooling is a necessary step to take. Traditional dried tofu cooling involves an always-on air conditioner for the cooling chamber in which freshly made dried tofu is put to start the cooling process. The dried tofu is then left there until it has cooled to 25 °C or lower, after which the packaging process can begin. This, however, during large loads, can severely reduce the water content of the dried tofu first put into the chamber, affecting the taste. This paper utilizes a microcontroller based temperature monitoring system. The system will read the temperature of the cooling chamber via a RF temperature module and then notifying personnel of any temperature changes, preventing delayed packaging. Conversely, when production volume is low, the system will turn off the air conditioning, and opt instead for a mobile water based cooler. Tests show that although this method has a reduced cooling radius, energy savings are high. This production procedure greatly increases the stability of quality of the dried tofu.
44
Tsung-HaoHan et 韓宗豪. « Wireless Monitoring and Prediction Model of Rail Temperature ». Thesis, 2015. http://ndltd.ncl.edu.tw/handle/37932940730956893349.
Texte intégralRésumé :
碩士國立成功大學
土木工程學系
103
With the rapid development of rail transport, Continuously Welded Rail (CWR) has been used in Taiwan by degrees, providing the train with stability and comfort. But, the displacement caused by the changes of rail temperature would be fixed by CWR with temperature force transforming into internal stress. Therefore, the rail can distort causing buckling at higher temperature and tension cracks at lower temperature. Besides the condition of rail structure and dynamic force caused by train, the key element for the stability of rail track is rail temperature. It is a major issue to control the instant rail temperature data and raise the alarm. The study discussed the methods of measuring temperature and developed the wireless monitoring system of rail temperature which is verified with different sensors. The wireless monitoring system can detect 24 hours a day, and send the data to PC or website. It can provide complete and real-time rail temperature data. Users can learn the alarm messages instantly at certain temperature thresholds. Due to lack of rail temperature data in some areas, the study purposed to predict rail temperature with air temperature and amount of insolation, and analyze the effects of different ambient conditions. Finally, the prediction model is developed with measuring data and meteorological data. The model performance can be verified with the rail temperature data at Dajia Train Station. The results show that the mean error of predict maximum temperature and actual maximum temperature is in 1℃. The model can predict maximum/minimum temperature and the trend of rail temperature with air temperature data and amount of insolation data.
45
Dias, Diana Patricia Rodrigues. « Development of polymetric sensors for monitoring baby's temperature ». Master's thesis, 2014. http://hdl.handle.net/10316/36268.
Texte intégral
46
Chang, Chia-Hao, et 張嘉澔. « On-line Monitoring of Cutting Temperature with Microsensors ». Thesis, 2014. http://ndltd.ncl.edu.tw/handle/33969252925252708506.
Texte intégralRésumé :
碩士國立臺灣大學
機械工程學研究所
102
In metal cutting operation, there are still many difficulties in measuring cutting temperature, because the location of the maximum temperature occurs at the contact surface between the tool and the chip. Using an infrared thermal imager is susceptible to interference by chips or cutting fluid. If a thermocouple or thermistor is used, it is difficult to directly measure the tool tip temperature. Drilling a hole in the tool must be done, and it will increase costs. At the same time, cutting temperature is a good indicator for tool wear or tool condition monitoring. In order to apply cutting temperature to monitoring in machining process monitoring, this study developed a novel temperature sensor for turning. It is a micro-thermistor made of NiO with a very high value of the thermal index B, so the resolution is very high compared to other types of temperature sensors. Moreover, miniaturized sensors can make multi-point temperature measurement within a small range possible. The tool tip temperature is estimated by the finite element method(FEM) with the measure temperature, which is known as inversed heat conduction problem(IHCP). In this study, the model order reduction(MOR) is used to increase computing speed of the FEM. In solving the IHCP, the conjugate gradient method is adopted to estimate the average temperature of the tip. The results confirmed that the temperature sensor developed in this study can respond quickly to changes of cutting temperatures. In the non-cutting experiments, the average tool tip temperature can be accurately and quickly predicted with the micro-thermistor array and the conjugate gradient method with MOR. Finally, the proposed methodology is applied to estimate the tool tip temperature in turning.
47
Li, Shih-Fu, et 李士甫. « Applying Temperature Monitoring Module and Intermittent Forced Convection to Realize RC Wall Temperature Regulation ». Thesis, 2016. http://ndltd.ncl.edu.tw/handle/45414675283412600859.
Texte intégralRésumé :
碩士逢甲大學
自動控制工程學系
104
As technology advances, human comfort requirements for living environments has gradually become an important and common question. Researches have found that in buildings with reinforced concrete (RC) structural facades, the thermal storage properties of RC result in great increase in indoor air-conditioning energy consumption, exacerbating heat island effect. This thesis proposes a strategy to effectively monitor the actual temperature of RC walls. Temperature Monitoring Module embedded in RC walls detects the wall temperature, and through wireless transmission technology a temperature feedback mechanism is achieved, where intake fans are started and indoor or outdoor air flows through cooling/heating Temperature Adaptive Regulator so that RC structures with different brass tube curving densities and the hot and cold air within the brass tubes may change, through intermittent forced convection (mainly three steps: ventilation , heat exchange , and convection), the residence time of the hot and cold air within the tubes, achieving excellent heat exchange efficiency, even change the temperature of RC walls efficiently. Whether to cool or heat the air within the brass tubes may depend on the season or day/night, and the control is through the electrode polarity and voltage magnitude of Thermolelectrical Chip (TEC). The result of thesis, if we did the experiment by natural convection, the temperature dropped 0.5 ℃. When we used the intermittent forced convection and mode selection to do the experiment, the temperature dropped almost 1.5 ℃. It can be seen my thesis was feasible.
48
LEE, YA-TING, et 李雅婷. « Hot Spring Discharge and Temperature Monitoring in Guanziling,Tainan ». Thesis, 2018. http://ndltd.ncl.edu.tw/handle/7nw99n.
Texte intégralRésumé :
碩士嘉南藥理大學
觀光事業管理系
106
The Guanziling hot spring is a famous and historic hot spring in the southern Taiwan. There are two hot spring outcrops—Baochuan Bridge and Acala Temple in Guanziling, Tainan. The two outcrops are the only sources for the hot spring water for the bathhouses in the Guanziling. The hot spring in the Acala Temple outcrop has dried up in 2017. The discharges of hot spring water had been studied by the velocity method. However, the data of the velocity method show a large variation and low accuracy. The purposes of this study is to monitor the discharge, water level, temperature and suspended load of hot spring water and discuss the correlations with rainfall in the Baochuan Bridge outcrop during 2017. Discharges of hot spring are measured by the volumetric method and V-notch method in this study. The data of this study show a positive correlation between the water level of hot spring and the rainfall while the rainfalls are larger than 80 mm/d. however, the correlation is negative between the water temperature of hot spring and the rainfall. We suggest that the water level of hot spring is increasing because the rainfall increases the water volume in the outcrop which without a roof or shelf and decrease the temperature of hot spring with cooler rainwater. The data of this study show a lower variation and higher accuracy by using the volumetric method than the velocity method. The discharges of the Baochuan Bridge hot spring outcrop are approximately 54 CMD by using the volumetric method. The suspended loads carried by the hot spring water are 0.21-3.56 m3/d, i.e. 75-1301 m3/y.
49
Masters, Michael Harry. « A computer-based respiratory measurement system and a temperature transducer for monitoring respiratory flow temperature ». 1985. http://hdl.handle.net/2097/27494.
Texte intégral
50
Sims, Lindsay Eileen. « Monitoring rumen temperature as an indicator of receiving calf health ». 2009. http://digital.library.okstate.edu/etd/Sims_okstate_0664M_10427.pdf.
Texte intégral