Дисертації з теми "Dental monitoring"
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Ossi, Zannar. "Monitoring the stability of dental implant using acoustic emission method." Thesis, University of Edinburgh, 2013. http://hdl.handle.net/1842/8800.
Повний текст джерелаAnttonen, V. (Vuokko). "Laser fluorescence in detecting and monitoring the progression of occlusal dental caries lesions and for screening persons with unfavourable dietary habits." Doctoral thesis, University of Oulu, 2007. http://urn.fi/urn:isbn:9789514286209.
Повний текст джерелаMatram, Zaura Anggraeni. "Development of a system for monitoring the performance of Indonesian school teachers and village health workers in the provision of selected dental services." Adelaide, 1986. http://web4.library.adelaide.edu.au/theses/09DM/09dmm433.pdf.
Повний текст джерелаШаєхов, Ф. Ф. "Моделювання прийняття оптимальних управлìнських рìшень при організацìì дитячоì стоматологìчноì допомоги". Master's thesis, Сумський державний університет, 2020. https://essuir.sumdu.edu.ua/handle/123456789/82722.
Повний текст джерелаВ работе проведен анализ оказания стоматологической помощи детскому населению на втором уровне. Проведен мониторинг детской стоматологической заболеваемости. Определены основные направления деятельности. Проанализирована оказание стоматологической помощи детскому населению Украины, Сумской области и города Шостка за период 2017-2019 г.г. Изучены изменения и тенденции стоматологии Украины на современном этапе и основные проблемы. Определены основные задачи стоматологической службы и предложены пути ее усовершенствования на современном этапе.
The paper analyzes the provision of dental care to the child population at the secondary level. The monitoring of children’s dental sickness rate has conducted. The provision of dental care to the child population of Ukraine, Sumy region and Shostka for the period of 2017-2019 has analyzed. Changes, tendencies and main problems in dentistry of Ukraine at the present stage have studied. The main tasks of the dental service have determined and the ways of its improvement at the present stage have suggested.
Bergman, Gerald Rae. "Evaluation of exposure to optical radiation used in diagnostic and treatment in medicine and dentistry." Connect to full-text via OhioLINK ETD Center, 2004. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=mco1095952844.
Повний текст джерела"In partial fulfillment of the requirements for the degree of Master of Science in Occupational Health." Major advisor: Farhang Akbar. Includes abstract. Document formatted into pages: iv, 75 p. Title from title page of PDF document. Includes bibliographical references (p. 58-68).
Hasan, Nihad Hasan Musa. "Heterocontrole da fluoretação da água de abastecimento público em Pelotas e Rio Grande/RS e comparação de dois métodos de avaliação do fluoreto." Universidade Federal de Pelotas, 2007. http://repositorio.ufpel.edu.br/handle/ri/2228.
Повний текст джерелаFluorine addition in public water supply has been associated to the enormous world decline in dental caries index, still is the most efficiency preventive method for dental health. However the implementation of the fluoridation of the water propitiated the increase of the prevalence of dental fluorosis. The aim of this study were evaluate the level of fluorine in the public water supply in the cities of Pelotas and Rio Grande-RS and compare two fluorine determination methods. The samples were collected, biweekly, in the same points of the companies of public water supply in the two cities evaluated, Rio Grande (8 points), Pelotas (44 points). To the mensuration of the fluoride present in the samples two methods were used, one was the spectrophotometric SPANDS, the other the electrometric. The samples were appraised in duplicate and the results obtained was that the methods electrometric and espectrofotométrico presented good correlation (p<0,01), however there was difference statistics (p < 0,05).The concentrations of fluoride in the public water supply were inside of the values recommended in the twelve months of evaluation in the two districts of Pelotas and Rio Grande/RS. It was ended that of the two tested methods are suitable for determination of fluoride concentration, however the most precise is the electrometric. During the twelve months of surveillance in the two districts, the concentrations of the fluoride stayed in the recommended and didn't represent a risk to the dental fluorosis
A adição de flúor à água de abastecimento público tem sido associada ao enorme declínio mundial dos índices de cárie, sendo considerado o método de maior eficiência em termos de saúde coletiva. Porém, a implementação da fluoretação da água propiciou aumento da prevalência de fluorose dental. O objetivo deste estudo foi avaliar a concentração de flúor existente na água de abastecimento público do município de Pelotas e Rio Grande RS e comparar os dois métodos mais utilizados na determinação da concentração do fluoreto (eletrométrico e espectrofotométrico). A coleta das amostras foi realizada, quinzenalmente, nos mesmos pontos que os das companhias de abastecimento público de água dos dois municípios avaliados, Rio Grande (8 pontos de coleta) e Pelotas (44 pontos de coleta). Para a mensuração do flúor presente nas amostras foram empregados os dois métodos mais utilizados, um foi espectrofotométrico, usando SPANDS, o outro o eletrométrico, com eletrodo seletivo para fluoreto. As amostras foram avaliadas em duplicata e, através dos resultados obtidos, observou-se que os métodos eletrométrico e espectrofotométrico apresentaram boa correlação (p<0,01), contudo houve diferença estatística (p< 0,05). As concentrações médias de fluoreto na água de abastecimento público estiveram dentro dos valores recomendados pela portaria 10/99 nos doze meses de avaliação nos municípios de Pelotas e Rio Grande/RS. Concluiu-se que os dois métodos testados são indicados para determinação da concentração de fluoreto, embora o eletrométrico seja mais preciso. Durante o heterocontrole nos dois municípios, as concentrações médias do fluoreto mantiveram-se dentro de valores que não representam risco à fluorose dentária
Bronzo, Ana Lucia Aparecida. ""Procedimentos odontológicos em pacientes hipertensos com ou sem o uso de anestésico local prilocaína associada ou não ao vasoconstritor felipressina"." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/5/5148/tde-24052006-143455/.
Повний текст джерелаThe objective of this study was to investigate the behavior of blood pressure and the role of anxiety during dental treatment of hypertensive patients. An evaluation was made of sixty-five hypertensive patients (blood pressure = 140/90 mm Hg) under anti-hypertensive treatment were evaluated by the IDATE anxiety test (n = 34), blood pressure measurements 2/2 minutes (automatic oscillometric device), and ABPM (n = 42) with 15/15 minutes measurements, during 8 hours on the days of the two dental experiments. Evaluation an increase in systolic pressure of short duration and little magnitude ( < 10 mm Hg) was found, regardless of using prilocaine with or without felypressin. During some procedures, the patients presenting anxiety had higher blood pressure than those without anxiety, suggesting that anxiety may play a role in the increase of blood pressure
Neves, Ricardo Simões. "Estudo de parâmetros eletrocardiográficos e de pressão arterial durante procedimento odontológico restaurador sob anestesia local com e sem vasoconstritor em portadores de doença arterial coronária." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/5/5131/tde-06022007-142629/.
Повний текст джерелаWe enrolled 62 patients with positive exercise stress test who presented with stable angina and were receiving drug therapy. All had a coronary angiography screening showing >70% obstruction in at least one of the main coronary arteries. The study aimed to compare electrocardiographic and blood pressure parameters during restorative dentistry procedure under local anesthesia, both with and without vasoconstrictor, in the presence of coronary artery disease. Ages ranged from 39 to 80, (mean ± SD) 58.7±8.8 years, 51 (82.3%) of them were male. Thirty patients were randomly assigned to receive 2% lidocaine local anesthesia with 1:100,000 epinephrine, the others receiving 2% lidocaine without vasoconstrictor. All the patients underwent ambulatory blood pressure and 24-hour Holter monitoring, beginning two hours ahead of the dental procedure. Recording were made during (1) baseline - 60-minute period before dental procedure began; (2) procedure - from beginning of anesthesia until the end of the procedure; and (3) subsequent 24-hour period. Analysis of variance with repeat measures showed significant diastolic and systolic blood pressure increases from baseline to the period of the procedure, in the two study groups (approximately 14 mm Hg, and 5 to 7 mm Hg, respectively); both in a separate analysis and in a comparative analysis no significant difference between them could be confirmed. Heart rate did not change in neither of the two groups. ST-segment >1 mm depression was detected in 10 (17.9%) patients; all these events occurred at least two hours after the end of the dentistry procedure. Premature supraventricular systoles and/or premature ventricular systoles in a greater number than 10/hour were seen in 17 (30.4%) patients in the 24-hours period after the procedure; during the procedure they occurred in 7 (12.5%) patients, of whom 4 (13.8%) were in the group without, and 3 (11.1%) in the group with vasoconstrictor. The Fisher\'s exact test revealed no difference between the groups. We concluded that there was no difference of blood pressure, heart rate, evidence of ischemia or arrhythmia episodes between the groups. Thus, the associated use of vasoconstrictor proved to be safe within the limits of this study
Srivastava, Abhinav. "Robust and secure monitoring and attribution of malicious behaviors." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/41161.
Повний текст джерелаAlbus, Kelly. "Long Term Citizen Science Water Monitoring Data: An Exploration of Accuracy over Space and Time." Thesis, University of North Texas, 2012. https://digital.library.unt.edu/ark:/67531/metadc1404518/.
Повний текст джерелаNeves, Itamara Lucia Itagiba. "Monitorização materno-fetal da portadora de doença valvar reumática durante procedimento odontológico sob anestesia local." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/5/5131/tde-18042007-090959/.
Повний текст джерелаDuring pregnancy, the organic systems of a woman are subjected to physiological modifications consequential to hormonal, anatomic and metabolical alterations. The most significant modification in the circulatory system is an increased cardiac output from the first three months of gestation. Women with heart disease may present with severe complications during the gestational period, because of inappropriate adaptation of her body to this hemodynamic overload, even those patients who are thought to have an appropriate functional capacity during early pregnancy. There are scant studies in the literature on the effects of local anesthetics, with and without vasoconstrictor, used in dental procedures on the cardiovascular variables of pregnant women with valvar disease, as well as on their concepti. Driven by this shortage, we decided to have this subject studied, by assessing and analyzing cardiotachographic parameters, such as heart rate, fetal motility and uterine contractions, in addition to blood pressure and electrocardiographic variables, in pregnant women with rheumatic valvar disease who undergo local anesthesia with lidocaine, with and without vasoconstrictor, during restorative dental procedure. For this, 31 rheumatic heart disease patients who were in their 28th to 37th week of gestation, had 24-hour ambulatory monitoring of their blood pressure (BP) and Holter electrocardiography (Holter-ECG), and cardiotocography (CTG), performed during: (1) baseline - 60 minutes before the procedure for BP and Holter- ECG monitoring, and 20 minutes before the procedure for CTG; (2) procedure - 56±15.5 minutes (mean±SD); (3) post-procedure - 20 minutes; and (4) mean 24-hour heart rate and extrasystoles measurement, and mean wake and sleeping periods BP monitoring. Variation of the above variables was analyzed in two groups, one with infusion of a 2% solution of lidocaine with vasoconstrictor, and the other with infusion of a 2% solution of lidocaine with epinephrine 1:100.000. The maternal heart rate values obtained during the procedure showed a significant reduction only in comparison with the other time periods (P<0.001). The comparison of the two groups did not reveal any significant difference (P>0.05). Cardiac arrhythmia was detected in 9 (29.0%) patients, 7 of them (41.8%) from the group who received anesthetics with epinephrine. Maternal blood pressure did not show any significant difference neither between time periods, nor between groups (P>0.05). The same occurred in the comparative analysis of the fetal parameters obtained during CTG -number of contractions, level and variability from baseline, number of fetal heart rate accelerations and fetal reactivity pattern. Our conclusion was that the use of 2% solution of lidocaine in association with epinephrine proved safe during dental procedure in pregnant women with rheumatic valvar cardiopathy.
Albus, Kelly. "Long-Term Citizen Science Water Monitoring Data: An Exploration of Accuracy over Space and Time." Thesis, University of North Texas, 2018. https://digital.library.unt.edu/ark:/67531/metadc1404518/.
Повний текст джерелаPeacock, Steven. "Storm Water System Monitoring for the Small Municipality Under Phase II of the National Pollutant Discharge Elimination System." Thesis, University of North Texas, 2003. https://digital.library.unt.edu/ark:/67531/metadc4298/.
Повний текст джерелаCORREA, PAULO R. "Desenvolvimento de uma interface de comunicação para determinação da difusividade térmica em função da temperatura, por termografia no infravermelho." reponame:Repositório Institucional do IPEN, 2013. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10504.
Повний текст джерелаMade available in DSpace on 2014-10-09T14:08:34Z (GMT). No. of bitstreams: 0
Dissertação (Mestrado)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP
Fabre, Pierre-Edouard. "Using network resources to mitigate volumetric DDoS." Thesis, Evry, Institut national des télécommunications, 2018. http://www.theses.fr/2018TELE0020/document.
Повний текст джерелаMassive Denial of Service attacks represent a genuine threat for Internet service, but also significantly impact network service providers and even threat the Internet stability. There is a pressing need to control damages caused by such attacks. Numerous works have been carried out, but were unable to combine the need for mitigation, the obligation to provide continuity of service and network constraints. Proposed countermeasures focus on authenticating legitimate traffic, filtering malicious traffic, making better use of interconnection between network equipment or absorbing attack with the help of available resources. In this thesis, we propose a damage control mechanism against volumetric Denial of Services. Based on a novel attack signature and with the help of Multiprotocol Label Switching (MPLS) network functions, we isolate malicious from legitimate traffic. We apply a constraint-based forwarding to malicious traffic. The goal is to discard enough attack traffic to sustain network stability while preserving legitimate traffic. It is not only aware of attack details but also network resource, especially available bandwidth. Following that network operators do not have equal visibility on their network, we also study the impact of operational constraints on the efficiency of a commonly recommended countermeasure, namely blacklist filtering. The operational criteria are the level of information about the attack and about the traffic inside the network. We then formulate scenario which operators can identify with. We demonstrate that the blacklist generation algorithm should be carefully chosen to fit the operator context while maximizing the filtering efficiency
Schwafert, Julian Félix. "Business Plan: dental monitoring." Master's thesis, 2021. http://hdl.handle.net/10071/23037.
Повний текст джерелаThere is huge potential for improvement of the healthcare industry through the use of emerging technologies. The problem, however, is, that due to heavy regulation there are just few technology- based solutions that are utilised and the dental market particularly is not yet digitalised. As a basis for the business model, the current state of the art of technology and the adaptiveness capacity in healthcare was analysed. The outcome demonstrates, that there is an immense need for patient- centred solutions and that digital transformation in healthcare often fails due to the complex implication. Furthermore, trends and challenges have been analysed, which reveal that the main challenge is a lack of societal acceptance for current data protection regulations. The main trends are Artificial Intelligence (AI) and wearable medical devices. The internal analysis comes up with strategy propositions to turn the market potential into an actual income stream, and design the service in a way, that is easy to use and avoids the challenges outlined above. Finally, the income statement underpins the business´ potential in the market with numbers, based on assumptions and findings. To get key insights and prove the businesses relevance, the business model was presented to 20 dental market experts, who filled out a survey to gather data and draw conclusions from it. The primary research uncovered that the trends detected are relevant and the market need for such a solution is identified. Generally, the results are in line with the business model´s solution and its expectations.
Huang, Chia-An, and 黃嘉安. "Monitoring Fatigue Fracture of Dental Ni-Ti Rotary Instruments." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/01264028973550155094.
Повний текст джерела國立臺灣大學
機械工程學研究所
101
In recent years, Ni-Ti rotary instruments are widely used in dental root canal treatment, the dentist will let Ni-Ti rotary instruments continued to rotate and in-depth dental root canal to clean the inside of therapeutic efficacy. Ni-Ti rotary instruments used in the dental pulp will cause fatigue fracture without warning due to continued rotation of alternating tensile stress and compressive stress. If Ni-Ti rotary instruments fracture in the tooth root canal, it will increase the difficulty of the treatment and also cause some unnecessary medical disputes. Some researcher conduct static measure of crack growth or fatigue fracture by way of stopping the rotation, but this method can’t provide a continuous-time and automatic measurement system, we can not use it in clinical. This study proposed to investigate the sound from successive bending rotation and the variation of the vibration wave resulting from the scratch of cutting, with two brands of Ni-Ti rotary instruments which are Protaper F2 and Endo Wave under different radii of curvature, curvature angle and rotational speed. In this study, the sensing of sound is performed by the microphone and the sensing of the vibration wave is performed by two FBG (Fiber Bragg Grating) which are affixed to the metal block and the motor. The sensors can be used to monitor the dynamic fatigue fracture, and in comparison with time domain and frequency domain, hoping to foreknow and warn before the fracture of Ni-Ti rotary instruments. Whether the microphone or the two FBG optical pathes of laser pump light source which are used separately or simultaneously, there are some examples which reach the achievements of supplying the physical meaning of warning, prolonging the operating time, and saving the medical resources. Keywords: Dental root canal treatment, Ni-Ti rotary instruments, Fatigue fracture monitoring, Fiber Bragg Grating.
Yu, Jin-Jie, and 俞勁杰. "Monitoring Dental Adhesive Layer Failure and Clinical Application under Cycling Load." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/38036742797810936683.
Повний текст джерела國立陽明大學
醫學工程研究所
101
Restorations, like veneer, crown, resin-bonded fixed prostheses and post and core, are routinely bonded to tooth substrates via the used of adhesive cement in the indirect adhesive procedures. Nevertheless, it is difficult to observe the fracture of the interface between the restoration and tooth until the interfacial failure. Therefore, the aim of this study is to investigate the behavior of micro-crack on the ceramic/cement/tooth interface using the fatigue test and acoustic emission (AE) technique. Using optical coherence tomography (OCT) have been used to observe the distribution the micro-crack to validate the results from AE technique. In addition, Four cavity(Without slot (WOS)、Slot (S)、Coverage (CWOS)、Coverage with slot (CWS)) was designed in a typical MODP restoration failure shape calculated fatigue life using finite element (FE) analysis. Finally, acoustic emission (AE) technique used in dental restorations in vitro tests, monitoring the crack growth. In the study, the AE technique and OCT images could potentially be used as a pre-clinical assessment tool to determine the integrity of cemented. When exposed to high load, adhesive layer prone to brittle fracture. But at low load, the adhesive will continue to produce microcracks, lead to failure of restoration. In finite element (FE) analysis, we found that the coverage under the axial force, can reduce the stress on the adhesive layer, and increase the fatigue life. From in vitro tests found restorations design for improved without significantly improved of restorations fracture strength. However, coverage design of restorations could reduce the generation of cracks.
Kuo, Zi-Ping, and 郭子平. "A Early Earthquake Warning System and Dental Occlusion Pressure Distribution Monitoring System." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/7tmrb9.
Повний текст джерела國立臺北科技大學
電腦與通訊研究所
101
There are two implementation in this thesis. Earthquake early warning system and dental occlusion pressure distribution. Taiwan is located in the circum-Pacific seismic belt; the earthquakes often caused great damages on life and infrastructures. In the metropolis, the population increasingly intense, destructive earthquake caused heavy casualties. For example, on September 21, 1999, the 921 earthquake resulted in approximately 2321 people were killed and more than 8,000 injured and property loss of about NT$ 30 billion. If people early be informed that the earthquake is coming, it will reduce the loss of casualties. In this design, the earthquake early warning system is desinged according the research recently. Second part of this paper presents a tooth bite force sensing system, mainly used in dental implants applications, especially for dental occlusion force distributed reference. The proposed system consists of soft resistive pressure sensor, which serves as the sensing element of the occlusion force. Moreover, the soft pressure sensors collect the measured pressure to perform the precise amount of uneven teeth surface. Furthermore, a graphical color changes manner showing the tooth size of the force are developed in this work.
Tsai, Ming-Hung, and 蔡明宏. "Development of a piezoelectric microsensor for monitoring the stability of dental implants." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/17355160902733584210.
Повний текст джерела臺北醫學大學
口腔復健醫學研究所
92
In this study, we designed and also implemented: the integration processes of an integrated circuit for a microsensor, which can be used in monitoring the initial stability of dental implants and the process of osseointegration of bone-implant interfaces. The substrates used in these experiments were p-type (100)-oriented Si wafers with a resistivity of 5-10 -cm. The Si wafers were prepared through an RCA clean process. After undergoing RCA cleaning, silicon carbide was prepared using a high-density plasma chemical vapor deposition (HDP-CVD) system. A PZT thin film was prepared by the Sol-Gel method, and this method was also used for microsensor fabrication. The interdigital electrodes were fabricated by a lift-off process. Properties of the device and thin film were evaluated by physical analyses. Resistance was varied and measured with an HP4145B semiconductor parameter-analyzer to investigate the electrical properties of the microsensor. In material preparation of the PZT thin film, we had to select the best process for our experiment. The Sol-Gel process was determined to be the best for our experiment, because it is easy to control the composition and there are fewer impurities in solution. In addition, it is a low-temperature process, so this can decrease the diffusion phenomenon seen at high temperatures. Furthermore, the properties of the precursors can be varied by adjusting the viscosity and solvent contents, and various electrical properties were created. Based on the above description, the Sol-Gel process was selected for our experiment. Based on the above investigation, in order to assess the requirement of precision detection, many functional devices were integrated on a chip. Up to now, the most surface acoustic wave (SAW) microsensor devices were fabricated by abnormal IC technology. However, this results in the high cost and large-used device area. To reach cost down and promote the device performance, SAW microsensor device and transistor can be integrated on a chip. This is called system on a chip (SoC). The processes of microsensor devices and transistor must be compelled. The purpose of this study is to discuss the dental implant and osseointegration stability by SoC integration.
Silva, Aura Luísa Maia da. "Analysis of electroencephalogram-derived index for anesthetic monitoring in patients with intellectual disability submitted to dental surgery." Master's thesis, 2018. https://hdl.handle.net/10216/112174.
Повний текст джерелаSilva, Aura Luísa Maia da. "Analysis of electroencephalogram-derived index for anesthetic monitoring in patients with intellectual disability submitted to dental surgery." Dissertação, 2018. https://repositorio-aberto.up.pt/handle/10216/112174.
Повний текст джерелаAlghilan, Maryam Abdulkareem. "Monitoring of Simulated Erosive Tooth Wear by Cross-Polarization Optical Coherence Tomography." Diss., 2019. http://hdl.handle.net/1805/19910.
Повний текст джерелаErosive tooth wear (ETW) is an emerging dental condition manifested clinically as tooth surface loss, eventually impairing the teeth’s structural integrity, function, and esthetics. Both research and practice are in need of a quantitative, non-destructive method to monitor ETW. Cross-polarization optical coherence tomography (CP-OCT), an advanced imaging tool, shows great potential to fulfill this need, but its feasibility and shortcomings remain unclear. In this dissertation, I explored the capability of CP-OCT to monitor ETW in three in vitro studies, one per chapter. Chapter 2 investigated the effects of enamel surface roughness and dental erosion severity on CP-OCT dental surface loss measurements. Chapter 3 tested the effects of enamel surface roughness and dental erosion on CP-OCT enamel thickness measurements at different simulated wear levels. Chapter 4 explored the ability of CP-OCT to quantify the thickness of natural and wornout enamel surfaces and to estimate longitudinally the wear depths resulting from simulated wear. I concluded: (1) enamel surface roughness did not affect CP-OCT measurements of enamel surface loss, however, the estimated error limited the appropriate assessment of the initial stages of dental erosion surface loss using CP-OCT; (2) enamel surface roughness and dental erosion did not affect CP-OCT enamel thickness measurements, and the CP-OCT differentiated the simulated enamel wear levels; and (3) CP-OCT quantified thickness of natural enamel before, during, and after the tooth wear simulation and allowed wear depth estimation following the simulated wear.
2021-07-03
Chen, Jun-Yuan, and 陳俊原. "Investigation of the Streptococcus mutans detection specificity and the real-time monitoring dental-biofilm formation of purple membrane-based photoelectric biochips." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/10306225571295551522.
Повний текст джерела國立臺灣科技大學
化學工程系
105
Bacteriorhodopsin (BR) is a retinal protein residing in Halobacterium salinarum purple membrane (PM). When illuminated, BR pumps a proton gradient across PM, leading to photocurrent generation. To improve the selectivity of antibody-PM and aptamer-PM composite sensor chips for Streptococcus mutans detection, which were previously developed by using the principles that PM photocurrent correlates linearly with illumination intensity and that bacteria scatter light, this study used glycine to block the residual active moiety of the homobifunctional crosslinker fabricated on PM-coated chips for recognition-element conjugation. For the detection of 106 CFU/mL bacteria, without prior glycine blocking, the antibody-PM chips exhibited not only a 53 % photocurrent reduction on S. mutans detection, but also 21% and 24% reductions for E. coli and L. acidophilus, respectively. On the other hand, with prior glycine blocking, the photocurrent reductions of the chips decreased to 8% and 7% on E. coli and L. acidophilus detections, respectively, indicating selectivity improvement of the antibody-PM chips. The effect of glycine blocking was less pronounced with the aptamer-PM chips because the photocurrent reductions decreased from 14% and 19% to only 12% and 15% for E. coli and L. acidophilus, respectively. Furthermore, a double-decked microfluidics device was designed and constructed to real-time monitor the formation of S. mutans biofilm on the substrate placed in the upper deck with a PM-coated photoelectric chip mounted in the lower deck. A diluted growth medium and an electrolyte buffer were injected into the upper and lower decks, respectively. The comparison of ITO glass modified with self-assembled monolayers with different terminal groups suggested that the hydrophobic and positively charged surface most easily caused S. mutans to form a mature 3D-strucutred biofilm. Moreover, the anti-biofilm peptides coated on the amine-terminated substrate effectively inhibited biofilm formation, with the inhibition efficiency increasing with their coating amounts. Therefore, the results confirmed the feasibility of real-time monitoring biofilm formation with the developed double-decked microfluidics.
Williams, Matthew Neil. "Coping in the chair : a validation study of the Monitoring Blunting Dental Scale : a thesis presented in partial fulfilment of the requirements for the degree of Master of Arts in Psychology at Massey University, Wellington, New Zealand." 2010. http://hdl.handle.net/10179/1537.
Повний текст джерелаChen, Hsin-Chiao, and 陳星橋. "An application of monitoring distributed denial of service based on Linux platform." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/85043880915871748606.
Повний текст джерела國立屏東商業技術學院
資訊管理系(所)
100
This research has established an application monitoring distributed denial of service (DDoS) attacks. We adopt TFN2K (Tribe Flood, the Net 2K) as an attack traffic generator and observe the system resource of the victim target like CPU utilization, memory usage, consumed by attack traffic. The types of attack traffic have been analyzed and by that we develop a defense scheme. The experiment has demonstrated that the proposed scheme can effectively prevent the attack traffic, by coordinating the firewall.