Dissertations / Theses: 'EDR technology'

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Pejznochová, Jana. "Logistické technologie se zaměřením na ECR v řetězcích obchodního typu." Master's thesis, Vysoká škola ekonomická v Praze, 2006. http://www.nusl.cz/ntk/nusl-460.

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Práce rozebírá logistické technologie, podrobněji Efficient Consumer Response. Zabývá se příčinami vzniku, stručnou historií, prvky, přínosy pro podniky a implementací ECR v podniku. Cílem práce je ukázat, jak ECR funguje a jak je uplatňováno v praxi u výrobních i obchodních společností, jak ECR vnímají koneční zákazníci, a jak by při zavádění technologie měly postupovat podniky, které s ECR nemají zkušenosti.

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Kalenda, Jan. "Elektroerozívní obrábění při výrobě tvarových dutin." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2009. http://www.nusl.cz/ntk/nusl-228789.

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In this diploma thesis is theoretically written about the production of shaped cavities using electroerosive sinking. The possibilities of usage and the production of electrodes for own usage likewise development of technology, tools and machines for electroerosive machining. The quality of machined surface and surface layer using own process of electroerosive sinking of shaped cavities are as well mentioned in this project.

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Abimbola, Isaiah Gbenga. "Assessing Value Added in the Use of Electronic Medical Records in Nigeria." Thesis, Walden University, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=3702058.

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Electronic medical records (EMRs) or electronic health records have been in use for years in hospitals around the world as a time-saving system for patient record keeping. Despite its widespread use, some physicians disagree with the assertion that EMRs save time. The purpose of this study was to explore whether any time saved with the use of the EMR system was actually devoted by doctors to patient-care and thereby to improved patient-care efficiency. The conceptual support for this study was predicated employing the task-technology fit theory. Task-technology theorists argue that information technology is likely to have a positive impact in individual performance and production timeliness if its capabilities match the task that the user must perform. The research questions addressed the use of an EMR system as a time-saving device, its impact on the quality of patient-care, and how it has influenced patients? access to healthcare in Nigeria. In this research, a comparative qualitative case study was conducted involving 2 hospitals in Nigeria, one using EMRs and another using paper-based manual entry. A purposeful sample of 12 patients and 12 physicians from each hospital was interviewed. Data were compiled and organized using Nvivo 10 software for content analysis. Categories and recurring themes were identified from the data. The findings revealed that reduced patients? registration processing time gave EMR-using doctors more time with their patients, resulting in better patient care. These experiences were in stark contrast to the experiences of doctors who used paper-based manual entry. This study supports positive social change by informing decision makers that time saved by implementing EMR keeping may encourage doctors to spend more time with their patients, thus improving the general quality of healthcare in Nigeria.

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Jakeš, Jan. "Trendy použití elektroerozivních technologií." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-228107.

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In this work, description of a basic principle of electro discharge machining and its technological possibilities was made. Possibilities of individual EDM machine producers and their comparison were described. Furthermore, the use of electro discharge machining in Zdas a.s. was shown. Trends in a development of the electro discharge technology are included, too.

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Swartling, Fredrik. "Gas flow observer for Diesel Engines with EGR." Thesis, Linköping University, Department of Electrical Engineering, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-2943.

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Due to stricter emission legislation, there is a need for more efficient control of diesel engines with exhaust gas recirculation(EGR). In particular, it is important to estimate the air/fuel ratio accurately in transients. Therefore a new engine gas flow model has been developed. This model divides the gas into one part for oxygen and one part for inert gases. Based on this model an observer has been designed to estimate the oxygen concentration in the gas going into the engine, which can be used to calculate the air/fuel ratio. This observer can also be used to estimate the intake manifold pressure. The advantage of estimating the pressure, instead of low pass filtering the noisy signal, is that the observer does not cause time delay.

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ILIE, Virginia. "WHAT DO PHYSICIANS WANT? INFORMATION TECHNOLOGY ACCEPTANCE AND USAGE BY HEALTHCARE PROFESSIONALS." Doctoral diss., University of Central Florida, 2005. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2276.

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This study builds on the theory of planned behavior, institutional and innovation diffusion theories to investigate physicians' responses to introduction of electronic medical records (EMR) in large healthcare organizations. Using a case study methodology, we show that physicians' attitudes towards using EMR are influenced by their perceptions of EMR complexity, relative advantage, compatibility with professional beliefs and individual predisposition to change. Specifically, we found that EMR usability characteristics such as system interface, "navigation," "search" and "speed" are major dimensions underlying physicians' perceptions of EMR complexity. To the extent that navigating and searching for clinical results are seen as difficult, physicians' perceptions of the complexity of using EMR are enhanced, with the result of physicians forming more negative attitudes towards EMR and using EMR less. Accessibility to EMR (i.e. logging in) and availability of hardware are two emergent constructs. These factors are immediate barriers for physicians not using EMR or using EMR minimally. At the same time, these barriers contribute to impacting physicians' perceptions that EMR is difficult to use and disadvantageous (i.e. time inefficient) compared to the paper chart. Results also show that most EMR usage at Alpha is rather "shallow." Physicians tend to use data-retrieval EMR minimally, mainly to supplement the paper chart. The availability of this "competing artifact," that is much easier to use and conveniently located near a patient's room limits the extent to which physicians use EMR at Alpha. Use of an imaging EMR system (EMR3) is more committed. EMR3 is used to replace the "old way" of accessing films. Lack of accessibility and hardware barriers, the relative advantage of EMR3 and other system usability considerations contribute to physicians using this system more faithfully. As regards the question "what do physicians want?" it seems that physicians want a system that that is easy to access and simple to use but most importantly, a system that they can directly identify with, an EMR that is personally relevant. In order to promote a "deeper" level of EMR usage, the benefits of EMR need to be emphasized to physicians while any potential costs or barriers reduced or eliminated.
Ph.D.
Department of Management Information Systems
Business Administration

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Ericson, Claes. "Mean value modelling of a poppet valve EGR-system." Thesis, Linköping University, Department of Electrical Engineering, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-2472.

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Because of new emission and on board diagnostics legislations, heavy truck manufacturers are facing new challenges when it comes to improving the engines and the control software. Accurate and real time executable engine models are essential in this work. One successful way of lowering the NOx emissions is to use Exhaust Gas Recirculation (EGR). The objective of this thesis is to create a mean value model for Scania's next generation EGR system consisting of a poppet valve and a two stage cooler. The model will be used to extend an existing mean value engine model. Two models of different complexity for the EGR system have been validated with sufficient accuracy. Validation was performed during static test bed conditions. The resulting flow models have mean relative errors of 5.0% and 9.1% respectively. The temperature model suggested has a mean relative error of 0.77%.

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Van, Blommestein Kevin Colin. "Clinical data acquisition utilising mobile technology / K.C. van Blommestein." Thesis, North-West University, 2007. http://hdl.handle.net/10394/1648.

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Begonha, Rodolfo Miguel Dinis dos Santos Bacelar. "Aspectos sócio-organizacionais da utilização de EDI." Doctoral thesis, Instituto Superior de Economia e Gestão, 2014. http://hdl.handle.net/10400.5/7551.

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Doutoramento em Sociologia Económica e das Organizações
Não esquecendo um enquadramento livre sobre o pensamento de vários autores a partir do século XIX com Karl Marx, e, evocando o actual contexto marcado pela globalização e pela rápida expansão de novas tecnologias de informação e de comunicação que mudaram o nosso dia-a-dia, esta tese procura estudar e discutir as consequências sócio-organizacionais da utilização de EDI – electronic data interchange. Atendendo ao tipo de mudanças em questão, é dado um destaque à reengenharia de processos: uma forma de mudança organizacional que considera a tecnologia de informação como uma ferramenta importante. Para efeitos deste estudo, utilizando várias ferramentas de recolha de dados, efectua-se uma incursão empírica focalizada no sector editorial português, abordando de forma inédita as relações entre as empresas que o integram e os seus grandes clientes, ou seja, as grandes cadeias de distribuição. Além da obrigatória caracterização deste sector, trata-se designadamente de entrar no “universo” - relativamente desconhecido e potencialmente polémico - das interacções entre este tipo de fornecedores e clientes, do poder relativo entre ambos e das possíveis transformações que a adopção do EDI acarreta para as organizações. São tratados os motivos pelos quais as editoras adoptam esta forma de integração electrónica com os clientes
Without neglecting a free interpretation on the thinking of several authors from the 19th century, starting with Karl Marx, and taking into account the current circumstances influenced by globalization and rapid spread of new information and communication technologies that have changed our daily life, this thesis seeks to study and discuss the socio-organizational consequences of the use of EDI - electronic data interchange. Given the nature of this change, it is given a special emphasis on business process reengineering: a way of organizational change that considers information technology as an important tool. For the purposes of this study, using various tools for data collection, it will be carried out an empirical incursion focused on the Portuguese editorial sector, addressing by an unprecedented way the relations between companies that integrate that sector and its major customers, i.e. the large distribution chains. In addition to the required sector‟s characterization, this work namely goes towards the "universe"- relatively unknown and potentially controversial – made of interactions between such suppliers and customers, of the relative power between both of them and of the possible transformations that the adoption of EDI carries to organizations. This analysis includes the reasons why publishers use EDI.

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Rhodes, Harry B. "Factors influencing the quality of EHR performance| An exploratory qualitative study." Thesis, Capella University, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10252643.

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A significant amount of evidence existed in support of the positive effect on the quality of healthcare that resulted from transitioning to electronic health information systems, equally compelling evidence suggests that the development process for electronic health information systems falls short of achieving its potential. The objective of this research was to assess the existing HIT standards and health information management (HIM) principles to determine if they are robust enough to inform the development of national and international interoperability standards. The research question asked; How do HIT standards and HIM principles and practices influence the quality of EHR performance? This study’s goal was to maintain focus on the collaborative challenges revealed by the lack of understanding and shared vision that commonly exists between HIM professionals, HIT developers, and HIT vendors that obstruct synergy and enfolding of health information standards-based capabilities and HIM practice (business) standards. The complex electronic health record (EHR) universe proved well suited for testing by a combination of complexity science and the unified theory of acceptance and use of technology (UTAUT) information management theories. Through analysis of research literature and qualitative interviews, the research identified nine factors defined into drivers and barriers that influenced the actions of healthcare organizations; leadership, patient focus, planning, communication, alignment with lifecycle models people, processes, dynamics, training and user input, change management standard adoption, and recognition of the power of technology. Analysis of the data obtained from exploratory qualitative interviews of health information technology professionals selected from a professional healthcare management organization supported conclusions that leadership, collaboration, planning, and training limiters, have a direct impact on EHR system success or failure.

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O'Malley, John Richard Jr. "Electronic Data Interchange: An Inventory Perspective of Its Economic Viability and Recommendations for Information Technology Driven Implementation." Diss., Virginia Tech, 2000. http://hdl.handle.net/10919/37365.

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Electronic commerce (EC) in its various forms is perceived by many organizations as the way that business will be conducted in the future. Much of the current wave of interest in EC is driven by new, readily available technologies like the Internet and the World Wide Web. The excitement regarding Web Commerce has lead many to believe that EC is relatively new. In reality, EC in the form of Electronic Data Interchange (EDI) has existed for 30 years and accounts for far more business than WC. It is the preferred, and often required, way of doing business with many large organizations such as the U.S. Federal Government, Ford, General Motors, and Wal-Mart. While EDI has existed for 30 years, it has not experienced the rapid adoption rate that Web Commerce has in the last few years. Currently, less than 10 percent of U.S. businesses and less than 5 percent of world businesses utilize EDI. The adoption rates for other recent information technologies, such as the World Wide Web and e-mail, have been much higher in a much smaller time frame which leads to the question of why has diffusion of EDI occurred so slowly compared to other recent information technologies. According to Kalakota and Whinston (1996), it is not due to technology problems with EDI but instead with its benefits. This is in conflict with Emmelhainz (1990) and Sokol (1995) who point out the tremendous benefits to firms that adopt EDI. This dissertation researches the reasons for the low EDI adoption rate based on financial benefits. It then develops an economic model that computes the cost savings which result when an EDI system is implemented. Sensitivity analysis is performed to understand the economic mechanisms of EDI. Based on the model developed here, recommendations are made for changing EDI to increase its market penetration. Finally, based on the recommendations an alternative EDI system, JEEDI, is developed. The financial effectiveness of the JEEDI system over existing EDI systems is then demonstrated using the economic model developed here.
Ph. D.

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12

Adams, Sharon L. "Nurses Knowledge, Skills, and Attitude Toward Electronic Health Records (EHR)." ScholarWorks, 2015. https://scholarworks.waldenu.edu/dissertations/875.

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Information technology (IT) has been rapidly integrated into the healthcare industry, including nursing, and has the ability to reduce errors, cut cost, and enhance patient care. However, approximately 45% of the current nurse workforce lacks adequate training in computer skills, which may hinder the adoption of health-related IT in the workplace. Characteristics of Rogers's diffusion of innovation (relative advantage, compatibility, complexity, trialability, and observability) guided this project. This project was conducted to address the problem of IT adoption on a local level and was designed to assess whether simulation training on a generic electronic health record (EHR) system would improve the knowledge, skill, and attitude of nurses with little or no experience with EHR. A convenience sample of nurses (n = 13) unfamiliar with EHR was obtained by posting flyers in long-term care or home health agencies. The nurses completed the P.A.T.C.H. assessment scale v. 3 (2011) before and after participating in the one-time simulation training on EHR. Scores on the P.A.T.C.H. were calculated according to the established scoring system and revealed a positive increase nurses' attitude and self-efficacy toward the EHR system. Posttest scores yielded an increase ranging from 0.5 to 5 points from pretest scores, with an average pretest score of 54.23 on a scale of 0-100. The results of this project are consistent with the literature and current research and illustrate the importance of addressing the need for interactive training. This project contributes to social change in practice by enhancing the awareness of EHR in nurses who are new users of IT and promoting the adoption of technology in healthcare.

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Yee, Silvia. "The absent ear, a phenomenological investigation into the confluence of recording technology and musical listening." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/mq22561.pdf.

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Chhan, David. "Evidence of inner-ear mechanisms in bone conduction in chinchillas." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/97829.

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Thesis: S.M., Harvard-MIT Program in Health Sciences and Technology, 2015.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 75-76).
While much is known about the process of how airborne sound is conducted to the inner-ear via the outer ear and middle ear, so-called air conduction (AC), the mechanisms by which vibrations of the head and body, so-called bone conduction (BC), produce an auditory response are not well understood. It is clear that the inner ear is the sensory site of auditory stimulation by bone conduction, and that the resultant activation of the inner ear has many features in common with air-conduction stimulation; however, bone conduction is known to stimulate the inner ear through multiple pathways. The relative significance and frequency dependence of these different pathways have not been well defined. Our previous work on bone conduction in chinchillas suggested inner-ear mechanisms are the dominant sources in BC. This thesis builds upon the early work by investigating inner ear mechanisms with stapes fixation and ear canal occlusion. Results of stapes fixation show a decrease in scala vestibuli sound pressure Psv and little change in scala tympani sound pressure PST in bone conduction. Ear canal occlusion produces an increase in ear canal sound pressure PEC with a similar amount of increase in Psv, but almost no change in Pst. We attributed the differences in the change between Psv and PST in bone conduction after these manipulations to the existence of compressible cochlear structures or third window pathways, e.g. the cochlear aqueduct. While ear canal compression and middle ear inertia sources may contribute to the total bone conduction response (a 10 dB decrease in Psv after middle ear interruption and stapes fixation, and a 10 dB increase after ear canal occlusion), inner ear mechanisms are still the most significant sources in bone conduction because the changes in Psv and Pst in BC are much smaller than the changes in AC.
by David Chhan.
S.M.

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Merchant, Gabrielle Ryan. "Functional measurements of ear pathology in patients and cadaveric preparations." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/90172.

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Thesis: Ph. D., Harvard-MIT Program in Health Sciences and Technology, 2014.
Cataloged from PDF version of thesis.
Includes bibliographical references.
This work investigated the utility of reflectance (R), a measure of middle-ear mobility, in the differential diagnosis of pathologies responsible for conductive hearing loss (CHL). Current clinical practice cannot distinguish the multiple pathologies that produce conductive hearing loss in patients with an intact tympanic membrane and a well-aerated middle ear. The lack of a more effective non-surgical diagnostic procedure leads to unnecessary surgery and limits the accuracy of information available during pre-surgical consultations with the patient. A noninvasive measurement to determine the pathology responsible for a conductive hearing loss prior to surgery would be of great value. This work focuses on determining whether a non-invasive diagnostic method, R, is a possible solution to this problem. Reflectance is a measure of the amount of sound that is reflected back when a sound stimulus is played in the ear canal. Measurements of R were made in a large number of patients who had a variety of pathologies that cause CHL including ossicular fixations, disarticulations, and third window disorders in order to explore the clinical utility of R measurements in differentiating these pathologies. Measurements of ossicular motion using laser Doppler vibrometry were also made in the same patients in order to compare the diagnostic utility of this well studied method to that of R. Using this patient information, multiple diagnostic uses and possibilities were explored, which showed the pre-surgical diagnoses of various pathologies. In order to investigate the effects of these pathologies in a controlled and systematic way, R and other metrics of middle-ear performance were also measured in human temporal bone preparations with simulated pathologies similar to those in the patient populations. Reflectance was also measured up to a higher frequency than had previously been possible using an experimental acoustic reflectance measurement system. We then analyzed the extended frequency measurements in novel ways to determine the effects of pathology on the time-domain characteristics. The high-frequency measurements in temporal bones were then used to explore potentially diagnostically useful computational models of middle-ear mechanical function in normal and pathological ears.
by Gabrielle Ryan Merchant.
Ph. D.

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16

KinShe, Kam, and Chandrasekhar Kondreddi Bhavani. "Hard Real Time guarantees using Switched Ethernet and distributed scheduling (EDF)." Thesis, Halmstad University, School of Information Science, Computer and Electrical Engineering (IDE), 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-250.

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Ethernet technology is being accepted by industrial community due to its open standardization

and low cost. To meet the requirements of industrial applications, a switched Ethernet

network with hard real time guarantees using relative deadlines is presented as a first step to

verify the functionality. The goal of the project was primarily to implement a real-time

switched Ethernet with EDF (Earliest Deadline First) scheduling algorithm.

In this project, the function simulations of real-time switched Ethernet with distributed control

software have been implemented, by using a standard switch with priority-queues and the

distributed software, as well as EDF-scheduled TDMA (Time Division Medium Access). The

network topology is the star type. There is no extra hardware added into the switch and the

nodes. All functions are implemented by software and the setting in the switch.

The project focuses on hard real-time service guarantees but soft real-time traffic and non

real-time traffic, as well as real time administration are also taken into the consideration.

Our simulations show that 100 percent of the network usage could be scheduled and the result

of deterministic real-time properties of the system are achieved as expected.

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Allagiannis, Ioannis. "EDI AND GREEK SMES. A MULTIPLE CASE STUDY IN THE CONTEXT OF TECHNOLOGY, ENVIRONMENT AND ORGANIZATION." Thesis, Linnéuniversitetet, Institutionen för informatik (IK), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-35799.

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Electronic Data Interchange (EDI) holds the potential to improve contemporary business operations, which are redefined frequently based on the demands of global competition. There are numerous EDI systems, which an enterprise can choose to adopt in order to meet its needs and goals. International literature demonstrates a variation of views regarding the adoption of new technologies, which differ according the size of each organization along with internal and external impediments and determinants. The use of EDI worldwide has gained a positive acceptance by commercial companies, industries and service providers, followed by rapid adoption mainly in the processes of large organizations. Conversely, the predictions of previous years’ studies have not been materialized to the expected extent. In Greece in particular, there is low penetration and a reluctance to adopt EDI technologies by Small and Medium Enterprises (SMEs). This study is based on the theoretical framework of Technology, Organization and Environment (TOE). A qualitative multiple case study research design has been used, in order to provide further insights on the factors that affect the decision of Greek SMEs in adopting EDI technologies. The significance of the perceived direct and indirect benefits, the effects of the perceived financial cost and technical competence and the importance of industry and government pressure on corporate level, are analyzed and discussed. An empirical support of the low penetration of EDI in the Greek SMEs' community is also provided. This research contributes in the existing knowledge about EDI adoption decisions regarding Greek SMEs by providing a variation of views, further insights on how Greek SMEs behave and react during the current economic recession and a new cost factor that emerged within the analysis of multiple cases. Avenues for future research are recommended in order to expand this study's findings in the field of corporate IT innovation.

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Jackson, Martin. "Model development for the adoption of technology : electronic commerce in the construction industry." Thesis, University of Wolverhampton, 2007. http://hdl.handle.net/2436/33736.

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Emerging information and communication technology (ICT) introduces many opportunities for the improved transfer of business documents throughout the trading process in the construction industry. Perceived and actual benefits have been realised throughout many studies however the relative success or failure has not been fully investigated for neither an individual organisational basis or throughout a complete supply chain. This research fills this knowledge gap by focusing on the feasibility of success before any design or development is undergone. The primary objective was to explore, explain and understand the nature of an organisation in the construction industry with reference to the adoption of technology and electronic trading methods such as electronic data interchange (EDI) and other methods of electronic commerce (Ecommerce). The second objective was to dissect the primary research and discover the key construct elements that exist and make an organisation what it is. These four quadrants or related business influences will form the basis for the factors governing success or failure of an adoption for both a stand-alone organisation and one within a supply chain. The third objective was to development a new analytical tool for determining success prior to the adoption of new technology into an existing business framework. The fourth objective was to test the tool within the construction industry in the UK and analyse the results. This research adopted a quantitative research approach in the form of a questionnaire that when data was recorded and analysed could produce a graphical representation of an organisation. Three models have been developed, they are focused toward determining success; (1) stand-alone organisational success, (2) supply chain success, (3) period of time taken to achieve successful adoption. This research helps us to understand the nature and extent of intra-organisational factors that influence the adoption of new technology. Secondly it provides the four key factors (four quadrants) that determine successful adoption: human resources, management, processes, and culture. Thirdly, these factors provide the building blocks for newly developed models. This provides for a clearer understanding of whether new information technology and communication developments can be successfully adopted into any organisation. Lastly, the research can help us understand the barriers to, and levers for, successful adoption. This research has some limitations that need to be acknowledged, most importantly the ‘target model’ was constructed from four quadrants that are evenly sized and weighted based on a questionnaire that suffers from a similar issue, further research is needed to address this weighting issue.

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Galko, Adam. "Technologie drátového elektrojiskrového obrábění." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318392.

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This thesis talk about practical application of wire electrical discharge machining (WEDM), which belongs to electro-erosion machining methods. This thesis is focused on the production of cutting dies produced by company FOR MIX s.r.o. Trenčín. We can consider the cutting die as a typical product of company´s product program. In the practical part of this diploma thesis, there is detail of technological aspects and operating costs for wire electrical discharge machining technology in specific condition of company FOR MIX s.r.o.

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Er, Mehmet Bilgi. "Mineralogy And Production Technology Of Degirmentepe (malatya) Pottery." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613696/index.pdf.

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A series of pottery samples provided from the survey investigations and excavations from Degirmentepe Mound (Malatya), belonging to Chalcolithic (Ubaid), Early Bronze and Iron Ages, were investigated by petrographic and X-ray diffraction (XRD) analyses to determine their textures, mineralogical compositions and microstructures. The sample microstructures and chemical (semiquantitative) compositions were also studied by scanning electron microscope with energy dispersive X-ray spectrometry (SEM - EDX). The chemical analyses of some samples were further investigated by inductively coupled plasma &ndash
optical emission spectrometry (ICP-OES). Almost all samples were observed to consist of rock fragments, originating from metamorphic and igneous rocks, although larger grain sizes and higher grain to matrix ratios are recorded for Chalcolithic Age samples compared to those samples belonging to Iron Age. XRD investigations on representative samples of the three periods, revealed high abundances of quartz, feldspar, and pyroxene group minerals in all samples, while the presence of hematite and mica minerals were observed both in Chalcolithic and Iron Age samples, but underlying the use of micaceous raw materials mostly in Iron Age. In the XRD traces of the investigated sherds of Chalcolithic and Iron Ages, the absence of clay fractions both in the bulk and oriented samples, supports a minimum firing temperature of around 800- 850 °
C, while the presence of mullite phase both in XRD and SEM &ndash
EDX results showed the possible use of high firing temperatures, in the range of 950&ndash
1050°
C, starting from Chalcolithic Age. Chemical compositions of major oxides obtained ICP &ndash
OES analyses exhibit similar compositions both for Chalcolithic and Iron Age samples. Few exceptions observed may indicate possible use of different raw material and/or different manufacturing technique.

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Robertson, Troy A. "A Case Study of Multiple-Use Finish Electrodes for Die-Sinking EDM." TopSCHOLAR®, 2015. https://digitalcommons.wku.edu/theses/1462.

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This study examines the use of one finishing electrode to finish multiple dies without remachining the electrode. The multiple-use electrode finishing experiment in this study addresses technology in the die-forging industry. Methods of manufacturing spherical straight bevel forge gear dies have relied on die-sinking Electrical Discharge Machining (EDM) practices that showed great potential for advancement. The focus of this study is solely on the improvements of electrode use in EDM finishing-processes. The surface finish quality itself is not an area of concern other than maintaining that it does not diminish. The focused concern is maximizing the process by using one electrode unmodified for multiple-finishing operations. The objective for improvement is utilization of one finishing electrode used multiple times rather than only one finishing electrode per die. Utilizing a Coordinate Measuring Machine (CMM), the inspection of specific locations on the finishing electrode reveals the repeatability and accuracy of use for one finishing electrode for six gear forging-dies. Initial experimentation validates the capabilities to finish four dies accurately in two separate die configurations with one electrode. To accomplish finishing the four initial dies, a die-sinking EDM machine that possesses a large enough working envelope was included in the process. The transition of using graphite electrode materials in place of brass for finishing multiple dies aids in reducing what was a total eight-hour process time into a four-hour process time.A machine with a working envelope large enough for only setting up one die to be EDM machined generated the eight-hour process time. The researcher achieved the eight-hour process time by replacing brass electrodes in the roughing stages with graphite electrodes. The extent to which one finish electrode can finish a sample set of six complete dies with one electrode is studied. Data is extrapolated from the deviation of absolute locations on a three-dimensional solid model compared to the multiple-use finishing electrode. Specific locations inspected on the electrode conclude the study efforts with results revealing that the maximum repeated use of an electrode is seven uses.

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Miller, Antonio John. "Using otoacoustic emissions to measure the transmission matrix of the middle-ear." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/37979.

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Thesis (S.M.)--Harvard-MIT Division of Health Sciences and Technology, 2006.
Includes bibliographical references (leaves 39-41).
Here we describe an experimental method for measuring the acoustic transmission matrix of the middle-ear using otoacoustic emissions. The experiment builds on previous work that uses distortion product otoacoustic emissions (DPOAEs) as an intracochlear sound source to drive the middle-ear in reverse. This technique eliminates the complications introduced by needing to place an acoustic transducer inside the cochlea. Previous authors have shown how the complete 4x3 system response matrix, with its 12 unknowns, can be simplified to a 2x2 transmission matrix by de-coupling the middle-ear cavity and assuming the cochlear fluids are incompressible. This simplified description of middle-ear mechanics assumes that the input-output response at the tympanic membrane and stapes footplate is linear, one dimensional and time invariant. The technique allows for estimating the acoustic pressure and volume velocity at the tympanic membrane and the volume velocity of the stapes footplate, in both the forward and reverse direction, and under different boundary conditions at the stapes. The technique was applied to deeply anesthetized cats with widely opened middle-ear cavities over a frequency range of 200Hz to 10kHz. Results on three animals are reported and generally agree with previous data and a published middle-ear model.
by Antonio John Miller.
S.M.

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Irizar, Ana Clara Cadena. "Nel blu, dipinto di blu, five centuries of Blue Roman Glass from the Paletine Hill: a multi-analytical approach to provenance and production technology." Master's thesis, Universidade de Évora, 2020. http://hdl.handle.net/10174/29198.

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Based on a multi-analytical approach, this research aimed to characterize and compare the glass-making processes and provenance of the Roman blu glass collection, dated from the 1st century to Late Antiquity, found in the Helagabalus baths in the North East Palatine archaeological site. The samples were analysed by Optical Microscopy and SEM-EDS to identify homogeneity, glass morphological features like bubbles, inclusions and corrosion. EMPA was applied to determine the elemental composition of major and minor elements, whereas LA-ICP-MS allowed us to define trace elements. Major and minor elements, analysis, performed by EMPA, gave particular information regarding the ingredients (network former, flux, colurants and decoulourants) used in the glass batch. SEM-EDS and LA-ICP-MS in combination with EMPA allowed usto group the collection for provenance and technology information. Comparison of the data with the literature allowed to identify the raw materials provenance. This study highlighted changes in glass-making technology and provenance from the 1st to 5th of the Roman blue glass, collection. The particular study of this collection can give further information about the glass making techniques of that time.

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Lattimore, Thomas. "Combustion and emissions of a direct injection gasoline engine using EGR." Thesis, University of Birmingham, 2016. http://etheses.bham.ac.uk//id/eprint/6677/.

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This research has examined the combustion and emissions of a spray-guided direct-injection spark-ignition (DISI) engine using exhaust gas recirculation (EGR). The impact of EGR type, swirl and tumble intake airflows, compression ratio and fuel type were also investigated. EGR addition resulted in significant fuel consumption improvements and differing particulate matter (PM) behaviour depending on the knock limited maximum brake torque (KLMBT) spark advance achieved. When comparing EGR types, cooled EGR achieved the best fuel consumption and cooled EGR after three-way catalyst (TWC) achieved the best gaseous emissions (NOx and HC). Swirl and tumble intake airflows significantly increased fuel consumption. However, these increases could be minimized with EGR addition. Swirl significantly reduced the accumulation mode particulate emissions, providing a potential solution for PM reduction. EGR addition did not significantly affect PM for the swirl and tumble intake airflow conditions. 20%vol 1-butanol addition to gasoline fuel (Bu20) resulted in significant PM reductions at 8.5 bar IMEP. At 7.0 bar IMEP, EGR addition allowed the KLMBT spark timing to be advanced, as the compression ratio was increased. Fuel consumption was improved by 0.4% due to the spark advance and reduced pumping losses, and PM improved because the formation of primary particles was reduced.

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Voss, Susan E. (Susan Elizabeth). "Effects of tympanic-membrane perforations on middle-ear sound transmission : measurements, mechanisms, and models." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/9921.

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Nicholas, Marcia M. "Successful Strategies for Implementing EMR Systems in Hospitals." ScholarWorks, 2018. https://scholarworks.waldenu.edu/dissertations/5386.

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Some hospital leaders are ineffective in implementing the electronic medical record (EMR) systems in the hospitals. The purpose of this multiple case study was to explore strategies hospital leaders use to successfully implement EMR systems. The target population consisted of hospital leaders and healthcare professionals from two hospitals who have successfully implemented EMR systems. The conceptual framework of this research study was Kotter's 8-stage process for leading change, building on the model of an effective change management method. Data were collected from 5 interviewed participants and company documents related to strategies regarding the EMR system implementation. The results of reviewing open-ended interview questions and archived documents were analyzed using codes and themes to facilitate triangulation. Three primary themes were developed from the coded data: (a) strategies hospital leaders use to implement the EMR system, (b) strategies hospital leaders use to achieve quality and best practice, and (c) strategies hospital leaders use to manage change and resistance to change. Results revealed 4 steps for successful implementation: (1) creating a vision, (2) communicating the vision, (3) establishing strong leadership, and (4) consolidating gains. Utilizing the successful strategies hospital leaders use to implement the EMR systems could produce quality patient care, efficiencies in hospital operations, and reduced organizational operation cost. The findings could effect positive social change through delivery of quality health and patient care that results in community cost benefits and healthier patient lifestyles.

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Barabáš, Martin. "Aplikace technologie drátové elektroeroze." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231508.

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This marter’s thesis deals with the technology of electrical discharge wire cutting. There is described the basic nature of the electrical erosion, EDM principle and WEDM principle. The main part deals with the application of wire cutting in the manufacture pulley 68-8M-130 with a description of technology on the wire cutter Excetek V 650. At the end of the work is devoted to the statistical evaluation of the precision machined surfaces.

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Mouralová, Kateřina. "Trendy použití nekonvenční technologie elektroerozivního drátového řezání." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-229121.

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The aim of this dissertation are future trends of electrical discharge machining in conditions of a small tool factory. In the introduction is presented the theory of non-conventional machining. The practical part is focused on valuation the current level of electrical discharge machining, the importance of the use in a tool Nástrojárna Ryšavý. It also compares the level of leading global manufacturers of electrical discharge machines and future trends of electro-discharge technology.

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Bergevin, Christopher. "Comparative approaches to otoacoustic emissions : towards and understanding of why the ear emits sound." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/39572.

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Thesis (Ph. D.)--Harvard-MIT Division of Health Sciences and Technology, 2007.
Includes bibliographical references (p. 223-237).
The ear represents a remarkable achievement in sensory physiology. It is very fast (timescales on the order of 1-100 kHz), has a large bandwidth (-10 octaves in the human), highly sensitive (threshold is ultimately determined by thermal noise), operates over an enormous dynamic range (factor of a trillion in terms of energy input), capable of sharp stimulus selectivity (e.g. frequency and intensity discrimination) and exhibits robust nonlinear behavior. As a sensor designed to detect acoustic sound pressure, surprisingly, the ear also emits sound as well. These otoacoustic emissions (OAEs) have been developed extensively for clinical applications (healthy ears emits while impaired ones do not), though their full potential has yet to be realized. Much of the effort gone into understanding OAEs has been developed within the context of mammals, where specific anatomical and physiological features (e.g. traveling waves and somatic motility) are thought to play an integral role in generation. This thesis approaches OAEs comparatively, systematically characterizing emissions in humans and an array of non-mammals (chickens, geckos and frogs) who lack these mammalian features and exhibit a diverse range of morphologies.
(cont.) First, our results show that for a fixed set of stimulus conditions (employing moderate intensities), emissions are relatively largest in the gecko and frog (the two species with the fewest number of sensory cells) and smallest in the human and chicken for frequencies below -2 kHz. At higher frequencies (3-5 kHz), emissions descend toward the noise floor for the non-mammals but remain relatively constant in human. Second, OAE phase behavior indicates that emissions are generated by multiple mechanisms in the human and chicken (and possibly gecko in certain stimulus conditions), but not the frog. OAEs in all species exhibit significant delays (-1 ms or longer), those being largest in humans. Tuning can explain these delays in all species except the frog, where some additional source of delay is present. Lastly, non-monotonic growth (relative to stimulus intensity) was found in all species, suggesting the presence of multiple level-dependent sources. We interpret the observed similarities and differences in emission properties across species within the context of anatomical/physiological comparisons.
by Christopher Bergevin.
Ph.D.

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Peng, Anthony Wei. "A hair bundle proteomics approach to discovering actin regulatory proteins in inner ear stereocilia." Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/54588.

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Thesis (Ph. D.)--Harvard-MIT Division of Health Sciences and Technology, 2009.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 137-154).
Because there is little knowledge in the areas of stereocilia development, maintenance, and function in the hearing system, I decided to pursue a proteomics-based approach to discover proteins that play a role in stereocilia function. I employed a modified "twist-off" technique to isolate hair bundle proteins, and I developed a method to purify proteins and to process them for analysis using multi-dimensional protein identification technology (MudPIT). The MudPIT analysis yielded a substantial list of proteins. I verified the presence of 21 out of 34 (62%) existing proteins known to be present in stereocilia. This provided strong evidence that my proteomics approach was efficient in identifying hair bundle proteins. Next, I selected three proteins and localized them to murine cochlear stereocilia. StarD10, a putative phospholipid binding protein, was detectable along the shaft of stereocilia. Nebulin, a putative F-actin regulator, was located toward the base of stereocilia. Finally, twinfilin 2, a putative modulator of actin polymerization, was found at the tips of stereocilia. In order to determine the function of twinfilin 2, I localized the protein predominately to the tips of shorter stereocilia where it is up-regulated during the final phase of elongation. When overexpressed, I found that twinfilin 2 causes a shortening of microvilli in LLC-PK1/CL4 cells and in native cochlear stereocilia. The main result of this thesis was determining the sub-cellular localization of three interesting proteins and functionally characterizing one protein. My thesis also confirmed the proteomics screen I developed as an efficient method for identifying proteins in stereocilia.
by Anthony Wei Peng.
Ph.D.

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Matos, Jody Maick Araujo de. "Graph-based algorithms for transistor count minimization in VLSI circuit EDA tools." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2014. http://hdl.handle.net/10183/147759.

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Esta dissertação de mestrado introduz um conjunto de algoritmos baseados em grafos para a obtenção de circuitos VLSI com um número reduzido de transistores utilziando células simples. Esses algoritmos têm um foco principal na minimização do número de nodos em representações AIG e mapear essa estrutura otimizada utilizando células simples (NAND2 e NOR2) com um número mínimo de inversores. Devido à minimização de nodos, o AIG tem um alto compartilhamento lógico, o que pode derivar circuitos intermediários contendo células com fanouts infactíveis para os nodos tecnológicos atuais. De forma a resolver essas ocorrências, o circuito intermediário é submetido a um algoritmo para limitação de fanout. Os algoritmos propostos foram aplicados num conjunto de circuitos de benchmark e os resultados obtidos mostram a utilidade do método. Os circuitos resultantes tiveram, em média, 32% menos transistores do que as referências anteriores em números de transistores utilizando células simples. Adicionalmente, quando comparando esses resultados com trabalhos que utilizam células complexas, nossos números demonstraram que abordagens anteriores estão algumas vezes longe do número mínimo de transistores que pode ser obtido com o uso eficiente de uma biblioteca reduzida de células, composta por poucas células simples. Os circuitos baseados em células simples obtidos com a aplicação dos algoritmos proposto neste trabalho apresentam um menor número de transistores em muitos casos quando comparados aos resultados previamente publicados utilizando células complexas (CMOS estático e PTL).
This master’s thesis introduces a set of graph-based algorithms for obtaining reduced transistor count VLSI circuits using simple cells. These algorithms are mainly focused on minimizing node count in AIG representations and mapping this optimized AIG using simple cells (NAND2 and NOR2) with a minimal number of inverters. Due to the AIG node count minimization, the logic sharing is probably highly present in the optimized AIG, what may derive intermediate circuits containing cells with unfeasible fanout in current technology nodes. In order to fix these occurrences, this intermediate circuit is subjected to an algorithm for fanout limitation. The proposed algorithms were applied over a set of benchmark circuits and the obtained results have shown the usefulness of the method. The circuits generated by the methods proposed herein have, in average, 32% less transistor than the previous reference on transistor count using simple cells. Additionally, when comparing the presented results in terms of transistor count against works advocating for complex cells, our results have demonstrated that previous approaches are sometimes far from the minimum transistor count that can be obtained with the efficient use of a reduced cell library composed by only a few number of simple cells. The simple-cells-based circuits obtained after applying the algorithms proposed herein have presented a lower transistor count in many cases when compared to previously published results using complex (static CMOS and PTL) cells.

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Larsson, Henrik, and Emma Lundström. "Småföretags möjligheter att använda EDI : En analys av EDI:s förutsättningar och tekniska aspekter." Thesis, Linköping University, Department of Computer and Information Science, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-2839.

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Syftet med studien har varit att utreda vilka möjligheter som finns för småföretag att använda sig av elektronisk affärskommunikation i form av EDI. Vi erbjuder genom uppsatsen denna grupp företag, småföretagen, en introduktion till EDI och hoppas på så vis hjälpa dem att komma igång med elektronisk affärskommunikation. Med småföretag avses i denna studie den definition som NUTEK presenterar, nämligen företag med mindre än 50 anställda eller som har en omsättning som understiger tio miljoner euro.

Utöver att undersöka vilka möjligheter som finns för småföretag tittar vi även på hur förutsättningar och tekniska aspekter påverkar småföretagens inställning till ett införande av en EDI-lösning. För att finna svar på våra frågeställningar utför vi en kvalitativ studie som baserar sig på en triangulering av tre metoder (observation, tidigare studier och intervjuer).

Vår empiriska studie bygger på fyra urvalsgruppers syn på EDI och de möjligheter som dessa anser att en EDI-lösning medför.

Vi har genom vår studie funnit att det finns goda möjligheter för småföretag att använda sig av EDI. Det finns webbaserade lösningar såväl som affärssystem med stöd för EDI, vilka lämpar sig för småföretag. Trots detta tycks denna grupp användare vara något hämmade att genomföra ett införande.

För att en ökning av antalet EDI-användare ska komma att ske krävs det att efterfrågan och intresse skapas hos de tilltänkta användarna. Om bara småföretagen får den information som krävs och ges tillräckligt med tid kommer EDI i framtiden att bli en naturlig del även i deras kommunikation.

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Manzo, Vincent Joseph. "The Effects of Polyphonic Interactive Music Systems on Determining Harmonic Functions." Diss., Temple University Libraries, 2012. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/164455.

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Music Education
Ph.D.
The ability to determine chords and progressions used in popular music is a valuable skill for musicians and part of musicianship. A music educator should be able to listen to the popular songs familiar to students and quickly and easily determine the chords and progressions being used in this music in order to convey information to the students about how the piece was composed and how it may be performed. Though some view this skill as being important, it is not assessed on teacher certification examinations, and the NASM (2010) accreditation mandate for addressing these particular skills in undergraduate and graduate ear-training (aural skills) courses is unclear at best. Musicians who have learned music informally may be more adept at this skill, likely out of the necessity to learn new music without the assistance of reading standard music notation. Mastery of this skill, however, could have more to do with the frequency that individuals perform with a polyphonic instrument as opposed to performers who play primarily monophonic instruments. When compared to musicians who have mastered a polyphonic instrument such as guitar or piano, musicians lacking experience performing on a polyphonic instrument may also lack an understanding of the concept of a three-note sonority functioning in a way specified by the key. In order to determine chords and chord progressions, experience performing harmony, hearing how it functions, and doing so with fluency is necessary. For players of monophonic instruments such as the trumpet or voice, the traditional approach for supplementing the lack of experience playing a polyphonic instrument is to give them piano lessons. However, without mastery of performance skills on this instrument, the fluency necessary to afford experiences in which the performer can be performing harmony while hearing how it functions can be difficult. One solution can be the implementation of interactive musical instruments and environments that provide a way of performing harmony with controls that are more accessible in terms of immediate use than traditional instruments. Technology-based musical instruments are easily obtainable to individuals via digital mediums and allow an immediacy by which an individual can compose and perform even without formal music training (Manzo, 2007; Pask, 2007; Wel, 2011). The present study observed the effects of activities involving polyphonic interactive music systems on participants' ability to determine chords and progressions. I observed the ways that post-test scores changed after using the software, and noted the extent to which subjects were able to determine chord progressions better or worse with the aid of this interactive software system versus a traditional polyphonic instrument. An increased ability to do so could yield important implications for individuals looking to easily perform chords for pedagogical reasons, such as practicing the determination of chords and chord progressions, but who lack mastery performing a polyphonic instrument; an interactive system could provide an alternative to traditional instruments. The open-source software developed and used for this study can be easily changed to allow musical events to be triggered using any sort of control mechanism including sensors, buttons, and more. This software, with its limited number of labeled controls, can be expanded to function as a prototype for future research. Visit www.vjmanzo.com/dissertation for more information.
Temple University--Theses

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Lusk, David Michael. "An Evaluative Study of User Satisfaction and Documentation Compliance: Using an Electronic Medical Record in an Emergency Department." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1280237643.

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Svoboda, Jiří. "Nekonvenční technologie elektroerozivního drátového řezání." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-229332.

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This thesis deals with technology of electric discharge machining with emphasis on application of the principle of material removal on wire cut electric discharge machine. The main part is concentrated on wire cut electric discharge machining in terms of a small tool making shop. The goal of the thesis is to create a wire cut electric discharge machining workplace in the company with a focus on the production of cutting tools. The thesis defines requirements for each component of cutting tools and strategies for their machining. Machining of model part and subsequent technical - economic evaluation is included in the final part.

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Cheng, Yen-Fu. "Role of the ubiquitin-proteasome pathway in the inner ear : identification of an E3 ubiquitin ligase for Atoh1." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/96458.

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Thesis: Ph. D., Harvard-MIT Program in Health Sciences and Technology, 2014.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 91-105).
Atoh1, the proneural basic-helix-loop-helix transcription factor, is critical for the differentiation of inner ear hair cells. Hair cells do not develop in mice that lack Atoh1, and overexpression of the transcription factor in embryonic ears induces differentiation of extra hair cells. The level of Atoh1 expression is under the control of a Wnt and Notch transcriptional regulatory network to keep the level of mRNA within a narrow range. Once the protein is made, it activates its own expression through an interaction with the Atoh1 enhancer, such that Atoh1 transcription is self-perpetuating. Because of this autoregulatory loop, halting transcription of the gene to maintain Atoh1 at an appropriate level would require that the amount of protein be decreased. Since the ubiquitin-proteasome pathway regulates catabolism of key regulatory proteins, we assessed its role in the degradation of Atoh1. E3 ubiquitin ligases confer substrate specificity to degradation of proteins by transferring a ubiquitin tag to a specific protein substrate. Using an immunoprecipitation/mass spectrometry screening approach, we identified Huwe1, a HECT domain E3 ubiquitin ligase, as an Atoh1 binding partner. We validated the binding between Atoh1 and Huwe1 through reciprocal co-immunoprecipitation and mass spectrometry. We found that Huwe1 promoted polyubiquitylation of Atoh1 through a lysine 48-linked polyubiquitin chain. Mutation at a catalytic cysteine within the HECT domain of Huwe1 reduced the polyubiquitylation. We also defined a motif in the C-terminus of Atoh1 responsible for interaction with Huwe1. Inhibition of proteasomal activity, as well as Huwe1 depletion, stabilized Atoh1 in the cochlea and resulted in generation of new hair cells in the newborn cochlea.
by Yen-Fu Cheng.
Ph. D.

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Van, Tilburg Hans. "Misunderstood junks the western view of Chinese maritime technology /." online access from Digital Dissertation Consortium access full-text, 2002. http://libweb.cityu.edu.hk/cgi-bin/er/db/ddcdiss.pl?3045445.

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Brázda, Radim. "Technologie elektrojiskrového drátového řezání." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-230788.

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This master´s thesis deals with unconventional technology of wire electrical discharge machining. There are described the principles and essence of electrical discharge machining and the principles related to wire electrical discharge machining with emphasis on the application of this technology in terms of medium-sized engineering company. There is also described the complete assembly of technolgy wire cutting and machining on wire cutter Excetek V 650. Then in the work there are statistically evaluated parameters precision machined surfaces, specifically to the belt pulley 116-8M-130. At the end of the work there is the technical-economic evaluation that addresses the hourly cost of machining on wire cutter Excetek V 650.

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McLean, Will (Will James). "Defined populations of inner ear progenitor cells show limited and distinct capacities for differentiation into hair cells, neurons, and glia." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/97320.

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Thesis: Ph. D., Harvard-MIT Program in Health Sciences and Technology, 2014.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 66-74).
Despite the fact that mammalian hair cells and neurons do not naturally regenerate in vivo, progenitor cells exist within the postnatal inner ear that can be manipulated to generate hair cells and neurons. This work reveals the differentiation capabilities of distinct inner ear progenitor populations and pinpoints cell types that can become cochlear hair cells, vestibular hair cells, neurons, and CNS glia. We expanded and differentiated cochlear and vestibular progenitors from mice (postnatal days 1-3) and analyzed the cells for expression of mature properties by RT-PCR, immunostaining, and patch clamping. Whereas previous reports suggested that inner ear stem cells may be pluripotent and/or revert to a more neural stem cell fate, we find that cells from each organ type differentiated into cells with characteristics of the respective organ. Only cochlear-derived cells expressed the outer-hair-cell protein, prestin, while only vestibular derived cells expressed the vestibular extracellular matrix marker, otopetrin. Since Atohi expression is consistently found in new hair cells, we used an Atohl-nGFP mouse line to identify hair cell candidates. We find that cells expressing Atohl also expressed key transduction, hair bundle, and synaptic genes needed for proper function. Whole-cell patch clamp recordings showed that Atoh1-nGFP+ cells derived from both cochlear and vestibular tissue had voltage gated ion channels that were typical of postnatal hair cells. Only vestibular-derived AtohinGFP+ cells, however, had Ih, a hyperpolarization-activated current typical of native vestibular hair cells but not native cochlear hair cells. Lineage tracing studies with known supporting cell and glial cell markers showed that progenitor capacity of cochlear supporting cells positive for Lgr5 (Lgr5+ cells) was limited to differentiation into hair cell-like cells but not neuron-like cells. In contrast, glial cells positive for PLP (PLP1+ cells) from the auditory nerve differentiated into multiple cell types, with properties of neurons, astrocytes, or mature oligodendrocytes but not hair cells. Thus, PLP+ progenitor cells within the auditory nerve are limited to neuronal or glial fates but have greater potency than Lgr5+ progenitors, which only formed hair cell-like cells. In summary, this work identifies distinct populations of post-natal inner ear progenitors and delineates their capacity for differentiation and maturation.
by Will McLean.
Ph. D.

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Shams, Amiri Nader. "Emerge and deploying electronic health records in developing countries." Thesis, Högskolan i Borås, Institutionen Handels- och IT-högskolan, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-16639.

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Nowadays, the main concern for any service provider organization is to improve their services with reducing the time of service accompanying with increase in their efficiency and effectiveness. In healthcare systems, specially, these concerns are much more important where the information is the core material of providng services to patients. Electronic health record (EHR) systems are designed to address these concerns and using them is becoming more and more important for many countries. EHR systems provide many capabilities to hospitals with collecting, sharing and manipulating information in the digitals format. Moreover, actual EHR systems enable hospitals to share their patient information with any other hospital no matter of the first location of storing data. Incorporating a system with the main goal of making integrity between different organizations is not an easy task and many challenges and problems should be considered to make the system efficient for the organizations. Although many good attempts have been done in some developing countries such as Denmark and USA this issue is still a big challenge for many developing countries. In this research study, it is tried to review the situation of EHR systems in a developing country to extract the challenges and barriers for adopting it. At first, the researcher has a deep literature review on past works on EHR from different aspects. After extracting needed information, a case study will be run to better understanding of the real situation and make a comparison between the literature and real environment. The researcher selected Iran as a developing country to review its healthcare system and the degree of using computerized system in the organizations.
Program: Magisterutbildning i informatik

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Smith, Amber Rose. "Communication Strategies Used During Organizational Change in a Health Care Organization." ScholarWorks, 2017. https://scholarworks.waldenu.edu/dissertations/4561.

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More than 4.9 million businesses exist in the United States, and leaders within these businesses have to acclimate to change. Clear and effective communication is vital to the success of an organization. According to scholars and health care leaders focusing on strategies to communicate change during organizational change is a critical aspect of sustainability and profitability. The conceptual framework of this study was communication theory. The purpose of this single case study was to explore successful strategies that some health care leaders used to communicate during organizational change in a health care organization in El Paso, Texas. The data collection process consisted of collecting data from semistructured interviews and organizational documents, and the analysis process included grouping key words and reconstructing data into themes. The 4 key themes that emerged from this process included building trust through organizational communication is critical during change, the use of technologies, as a tool for communication is key during change, 2-way communication needs to occur during organizational change, and communication about change is vital through comprehensive organizational meetings. Health care leaders provided insights on management and communication strategies and responsibilities leaders and employees go through during organizational change. The implications for positive social change include strategies to improve communication that could help health care leaders with their employees and their patients during organizational change, which could increase the profitability of the organization and potentially generate a more thriving and healthy community.

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Tichý, Štěpán. "Technologie drátové elektroeroze." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-231987.

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This master’s thesis deals with technology of wire electrical discharge machining in theoretical and practical level. Theoretical part of the thesis explains in detail the principle of electrical discharge machining, describes functional parts and settings of a current wire EDM machines and also the possibility of using method for production of specific parts. Practical part of the thesis solves manufacturing of gearing on pinion manufactured by wire cutter EXCETEK V650 and statistically evaluates precision parameters on surfaces of the carriers taken by specific technological conditions with the same machine.

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Brancazio, Maria Leigh. "Physician EMR Documentation Preference and Voice Recognition Acceptance in an Ambulatory Academic Health System." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1339441679.

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Pereira, Marcus Anibal. "Tecnologia LOCOS utilizando nitretos de silicio depositados por ECR-CVD." [s.n.], 2005. http://repositorio.unicamp.br/jspui/handle/REPOSIP/259198.

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Orientador: Ioshiaki Doi
Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Eletrica e de Computação
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Resumo: Isolantes de nitreto de silício (SiNx) para aplicação na tecnologia de isolação LOCOS foram depositados por ECR-CVD a temperatura ambiente e RP/RTCVD, a baixa pressão (5mTorr), com fluxos de gás de N2 de 2.5, 5, 10 e 20sccm, com fluxos de gases de SiH4/Ar fixos de 200sccm/20sccm, e potência de microondas de 1000W em substratos de SiO2-Pad/Si e Si. As estruturas de SiNx/SiO2-Pad/Si e SiNx/Si obtidas foram utilizadas para analisar as características físicas do nitreto de silício. Análises de espectroscopia de infravermelho (FTIR) revelaram a presença de trocas de posição do pico principal das ligações Si-N, das ligações N-H e das ligações Si-N (modo de vibração stretching) nos filmes de nitreto de silício, que está relacionado aos fluxos de N2 na mistura de gases. Os índices de refração entre 1.88 e 2.48 e as espessuras entre 120nm e 139nm foram determinados através de elipsometria. Com estes valores de espessura e com os tempos de ataque em Buffer de HF, foram determinadas as taxas de deposição de 9,6 a 11,1nm/min e taxas de corrosão de 2 a 86nm/min. O processo LOCOS, com etapas seqüenciais de fotolitografia e oxidação térmica, foi executado nas estruturas de SiNx/SiO2-Pad/Si e também de SiNx/Si (sem a presença de óxido "almofada"), com a espessura de cada tipo de nitreto entre 110nm a 215nm e espessura do óxido ?almofada? de 0 a 124nm. Análises de microscópio óptico e de microscopia eletrônica de varredura (SEM) foram utilizadas respectivamente para investigar a resistência dos nitretos de silício à oxidação térmica, executada sob altas temperaturas (1000ºC) e o efeito ?bico de pássaro? formado nas estruturas LOCOS. O nitreto depositado com fluxo de N2 de 10sccm (N10) foi o que apresentou a menor invasão lateral por parte do óxido de campo dentre os nitretos estudados, tanto com quanto sem a camada de óxido de ?almofada? sob o nitreto. O efeito "bico de pássaro" formado nas estruturas LOCOS teve comprimento de avanço lateral variando de 330nm a 2160nm tomando como base a oxidação local executada em temperatura de 1000ºC durante 180 minutos
Abstract: Silicon nitride (SiNx) insulators for LOCOS applications have been deposited by RP/RTCVD and ECR-CVD at room temperature, at low pressure (5mTorr), with N2 flows of 2.5, 5, 10 and 20sccm with fixed SiH4/Ar flows of 200/20sccm with a microwave power of 1000W on SiO2-Pad/Si and Si substrates. SiNx/Si structures were obtained to analyze the physical characteristics of silicon nitride. Fourier transform infrared (FTIR) spectrometry analyses revealed the main peak position shifts of Si-N, N-H and Si-N (stretching mode) bonds for each silicon nitride films, which is related to N2 flows in gas mixture. The refractive indexes between 1.88 and 2.48 and the thickness between 120nm and 139nm were determined by ellipsometry. With these thickness values and with buffered HF etching times, it was also determined the deposition rates of 9,6 - 11,1nm/min and etch rates of 2 -86nm/min. On the SiNx(110 -215nm)/SiO2-Pad(0 - 124nm)/Si and SiNx/Si (without pad oxide) structures, the LOCOS process, with sequential photolithography and thermal wet oxidation steps, was performed. Optical and scanning electron microscopy (SEM) analysis were used to investigate the silicon nitride to thermal oxidation accomplishement at high temperature of 1000 ºC, and bird's beak in the obtained LOCOS structures. On both structures (with and without pad oxide), the smallest lateral extension of the field oxide (bird's beak) was observed for the nitride films obtained with N2 flows of 10sccm (N10). The lengths of the bird's beak, in the obtained LOCOS structure, have resulted between 330nm and 2160nm
Mestrado
Eletrônica, Microeletrônica e Optoeletrônica
Mestre em Engenharia Elétrica

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Alavi, Farshid. "Optimization of Process Parameters in Micro Electrical Discharge Machining (EDM) of TI-6AL-4V Alloy." TopSCHOLAR®, 2016. http://digitalcommons.wku.edu/theses/1568.

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Ti-6Al-4V has a wide range of applications such as in the automotive and aerospace industries. Nevertheless, titanium alloys are very difficult to machine by conventional methods. Micro-EDM is a non-conventional machining method that uses the thermal effect of precisely controlled sparks. Manufacturers are looking for the methods and optimal settings to increase the productivity of micro-EDM in terms of lessening machining time and tool wear. Moreover, surface integrity of the machined area is crucial for some products such as biomedical implants. The objective of this study was to investigate the effects of the micro-EDM process parameters on response variables, in order to understand the behavior of each parameter as well as to determine their optimal values. Although, there is a substantial amount of literature studying different aspects of micro-EDM, most of them were designed based on the one-factor-at-a-time experiments instead of studying all factors, simultaneously. This research was conducted through a series of experiments using a full factorial design. An analysis of variance was employed to analyze the findings and to determine the effect and significance of each process parameters on the response variables. The process parameters included voltage, capacitance, electrode rotational speed, and electrode coating. Voltage and capacitance were studied separately as well as in combination in terms of the discharge energy. Response variables consisted of machining time, tool wear, crater size, microhardness, and element characterization. The surface morphology and element characterization were studied through the application of SEM and EDS analysis. The findings indicated that voltage had a decreasing effect on machining time, while it increased the crater size. Capacitance decreased machining time and tool wear. It had an increasing effect on the surface hardness. The effects of the TN-coating and electrode rotational speed were not statistically significant. Voltage and capacitance were the only parameters affecting element characterization. The affected elements included Ti, Al, C, and W. The optimal process parameters for two sets of response variables were determined using Minitab 17.

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Šenkýřová, Kateřina. "Supply chain management ve společnosti L'oreal ČR." Master's thesis, Vysoká škola ekonomická v Praze, 2009. http://www.nusl.cz/ntk/nusl-15337.

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The thesis Supply chain management in L'Oréal Czech republic describes and analyses the supply chain of the company. The objective is to define weaknesses of the chain and outline future projects. It analyses the utilization of logistic technologies such as EDI communication, VMI and ECR. In the practical part it focuses in forecasting process in the company. The work suggests new processes and defines parameters that should lead to better results when planning future sales.

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Wade, Wanda. "INCREASING NOVICE TEACHER SUPPORT IN 21ST CENTURY CLASSROOMS: INDUCTION AND MENTORING FOR BEGINNING TEACHERS THROUGH BUG-IN-EAR." Doctoral diss., University of Central Florida, 2010. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3268.

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Novice teachers in todayÂ s classroom are in need of support during the initial years of teaching. Providing beginning teachers in special education classroom settings with coaching and immediate feedback through Bug-In-Ear, Bluetooth technology has been identified as a effective strategy for supporting beginning teachers while simultaneously improving generalization and maintenance of instructional strategies in diverse classrooms (Anagnostopoulous, Smith & Basmadjian, 2007; Darling-Hammond and Baratz-Snowden, 2007; Brownell, Ross, Colon & McCallum, 2005). The present study was designed to examine the effects of using BIE, Bluetooth technology with novice teachers in inclusionary settings at a PK-5 charter school. As it has been demonstrated, Bug-In-Ear Bluetooth technology has allowed supervisors and mentors to increase desired teacher behaviors by providing immediate feedback, coaching and prompting during instructional delivery (Scheeler, McAfee, Ruhl and Lee (2006), Scheeler, Ruhl & McAfee, 2004; & Rock, et al., (2009). Specifically, this study looked to increase the average rate per minute of specific feedback statements made to students during reading instruction. Additionally, maintenance of increased rates of specific feedback once BIE coaching and prompting were withdrawn was also of interest. A multiple-baseline design across participants was used. Data were collected during baseline, intervention, and withdrawal phases. The independent variable was identified as prompts delivered by the coach through BIE Bluetooth technology. The dependent variable for this study was the average rate per minute of specific feedback statements made during reading instruction. Overall, the average rate per minute of specific feedback provided to students during reading instruction increased substantially with the use of Bug-In-Ear Bluetooth technology. Further, participants sustained higher than baseline averages of specific feedback provided to students. This study extended Scheeler (2004, 2006), and RockÂ s (2009) research on the use of immediate feedback through BIE technology, and demonstrated the effectiveness of this observation method with various participants, groups of students, and classroom diversity.
Ph.D.
Department of Child, Family and Community Sciences
Education
Education PhD

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Lexima, Marie Mirna. "Underserved Patients' Perspectives on How the EHR Impacts Their Health." ScholarWorks, 2015. https://scholarworks.waldenu.edu/dissertations/1902.

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Our modern health care system requires technology that can deal with multidisciplinary and complex processes, operations, and situations. The EHR, by far, is one of the greatest health information technology innovations that satisfy these requirements because of its efficiency and the effectiveness of its features. This study sought to develop an in-depth understanding of how underserved patients' perspectives about their health and illness, can contribute to greater use of the EHR. It also sought to improve their health outcomes and maintain sustainable change in the lives of the underserved. A quantitative non-experimental design study was conducted over a 6-week period outside of three different internal medicine clinics, one in the Northwestern and the two others in the Southeastern regions of Washington, DC. Surveys were distributed directly to patients coming out of these health clinics, and participants sent their responses via mail. Data collection included 215 surveys out of 560, but, only 155 fit the overall study categories. A strong level of significance in the relationships between clinical outcome measures and the EHR was identified at a 95% confidence interval. There were considerable health determinants that demonstrated the essence of patients' perspectives and the need for its incorporation into health outcomes measures for the underserved populations. The study also identified sets of environmental health predictors which acted as facilitators and contributors to a holistic health management model designed to contribute to the needs of the underserved communities. The holistic health model and the individual care plan model derived from the study are applicable at the level of the underserved population. It can help achieve sustainable health outcomes that will save lives and promote better health.

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Barbosa, Mário Rui Carvalho. "Estudo e contextualização do polígrafo quanto à análise de voz, ECG e EDR." Dissertação, 2012. http://hdl.handle.net/10216/69279.

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Barbosa, Mário Rui Carvalho. "Estudo e contextualização do polígrafo quanto à análise de voz, ECG e EDR." Master's thesis, 2012. http://hdl.handle.net/10216/69279.

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Dissertations / Theses on the topic 'EDR technology'

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