To see the other types of publications on this topic, follow the link: The Lab.
Dissertations / Theses on the topic 'The Lab'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 50 dissertations / theses for your research on the topic 'The Lab.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.
1
Peñafiel, Pilar, and Ricardo Ávalos. "Socks Lab." Tesis, Universidad de Chile, 2017. http://repositorio.uchile.cl/handle/2250/147792.
Full textAbstract:
TESIS PARA OPTAR AL GRADO DE MAGÍSTER EN MARKETINGPilar Peñafiel [Parte I], Ricardo Ávalos [Parte II]
Existe un tiempo limitado para reflejar y representar el estilo personal. La moda se ha vuelto una forma de representarse e individualizarse y los accesorios dentro del vestuario de las personas han tomado cada vez más protagonismo, ya que la gente busca diferenciarse y expresarse a través de los pequeños detalles como la corbata, lentes, colleras, cinturón e incluso relojes. Hoy el mundo corporativo exige en su mayoría atenerse a un código de vestimenta bastante acotado, por lo que los accesorios se han convertido en modos de individualizarse. Es por esto que cada vez más en lugares de todo el mundo se ha visto un crecimiento en el uso de accesorios anteriormente nombrados, viéndose desarrolladas cada vez más de estas categorías, partiendo por la categoría de relojería, corbatería, cinturones, lentes son categorías ya maduras con gran cantidad de actores participantes y donde el precio promedio se ha visto incrementado durante los años gracias a la innovación tanto en materiales de producción como en diseño. Algo similar se espera por parte de la categoría de los calcetines, si bien esta categoría representa un mercado maduro, que durante muchos años no creció y la mayor innovación fue de parte de las marcas deportivas desarrollando calcetines distintos por tipo de deporte (ejemplo Running y Fútbol). Finalmente se crea una nueva subcategoría que remece esta categoría con baja innovación e involucramiento por parte de los consumidores. En base a esta oportunidad y al fanatismo por esta prenda por parte de Ricardo, funda su propia empresa y crea la marca Socks Lab (que viene de Laboratorio de Calcetines) donde se busca desarrollar distintos tipos de calcetines para las personas de hoy enfocado en crear diseños lúdicos y entretenidos con elementos del día a día o elementos icónicos. Socks Lab ofrece la oportunidad de realizar un statement sutil de su personalidad y de diferenciarse del resto ofreciendo un producto de consumo masivo con diseños únicos diseñados en Chile. Socks Lab permite a las personas reflejar su estilo e individualidad a través de un producto innovador, con diseños creativos. Es una invitación a dejar los calcetines aburridos y atreverse a impresionar a colegas y amigos. En este Plan de Marketing abordaremos la subcategoría de los calcetines con diseño con principal enfoque en el primer año de lanzamiento de la marca en Chile, sus canales de distribución a desarrollar, producto y desarrollo comunicacional.
2
Merriman, Carolyn. "Abdominal Lab." Digital Commons @ East Tennessee State University, 2013. https://dc.etsu.edu/etsu-works/8530.
Full text
3
Block, Frida. "KIRUNA LAB : the experimental lab of an evolving society." Thesis, Umeå universitet, Arkitekthögskolan vid Umeå universitet, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-171750.
Full text
4
Seno, Maria Silvia. "Composição e morfologia de Feijão Gandu, Lab lab e mucuna." [s.n.], 1993. http://repositorio.unicamp.br/jspui/handle/REPOSIP/316601.
Full textAbstract:
Orientadores : Angelo Luiz Cortelazzo, Laureci GomesDissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Biologia
Made available in DSpace on 2018-07-18T15:08:48Z (GMT). No. of bitstreams: 1 Seno_MariaSilvia_M.pdf: 3802184 bytes, checksum: 8927400d2dfe2033b2447bd52839f40f (MD5) Previous issue date: 1993
Resumo: No presente trabalho, foram estudadas três espécies leguminosas: Cajanus cajan, Lab lab purpureum e Mucuna aterrima que pertencem a sub-família Papilionoidae onde se concentram a maioria dos legumes utilizados na alimentação humana. Guandu, Lab lab e Mucuna também são utilizados em forragem e como adubo verde. Pelas análises citoquímicas e bioquímicas foi constatada a presença de duas principais reservas nos cotilédones dessas espécies: amido e proteína. O conteúdo de amido é maior em Guandu com 55,5%, seguido de Lab lab com 53% e Mucuna com 40%, sempre em relaçao a matéria seca (MS). Os métodos citoquímicos e a microscopia de polarização mostraram que os grãos de amido em Lab lab são mais numerosos e apresentam menor tamanho. O material protéico está homogeneamente distribuído ao redor dos grãos de amido, por todo o citoplasma das células. Lab lab foi a espécie com maior conteúdo protéico, com cerca de 25,6% da MS. A análise dos extratos protéicos em SDS-PAGE, revelou inúmeras e muitas diferenças entre as espécies. Guandu apresentou uma proteína característica de 100 KDa e Mucuna pode ser caracterizada pelas proteínas com massa molecular aparente de 36,5, 27,5 e 18,5 KDa. A proteína de 45 KDa foi mais proeminente em Lab lab. Os lipídios eaçúcares livres estão presentes em pequenas quantidades nestas sementes. Através dos cortes citoquímicos e microscopia eletrônica de varredura foi constatado uma estrutura tegumentar lípica, com uma camada paliçadica espessa e com células bastante alongadas. A paliçada apresentou-se metacromática quando corada com AT pH 4,0. devido a presença de substâncias pécticas. Também houve forte coloração com PAS devido à presença de celulose. Nenhuma das espécies apresentou a "Linea Lucida" nas células da testa, caracteristica de sementes impermeáveis à água. A análise cromatográfica revelou um grande conteúdo de glicose, xilose e arabinose nos tegumentos da três espécies. No tegumento de Mucuna, foi detectada a presença de corpos marrons que se tratam possivelmente de taninos. Os dados obtidos na curva de embebição mostraram que Guandu e Lab lab embebem mais rapidamente. Mucuna embebeu mais lentamente e, embora também seja uma espécie com tegumento permeável pode-se aferir que se trata da testa que apresenta maior resistência à entrada de água. Desse modo pode ser sugerido que essa maior resistência seja devida à presença de taninos, que apareceram apenas nessa espécie. Os resultados obtidos foram ainda confrontados com aqueles encontrados em espécies totalmente impermeáveis, cuja anatomia dos tegumentos apresenta inúmeras diferenças com relação as três espécies estudadas
Abstract: In the present work, three leguminous speeies have been sudied: Cajanus eajan, Lab lab purpureum and Mueuna aterrima whieh belong to the sUb-family Papilionoideae where are eoneentrated the most of the legumes used in the human nutrieion. Guanu, Lab lab eMueuna are also used in foragement and as green fertilizer. cioehemieal and bioehemieal analysis have been made and it was find out the presenee of two prineipal reserves in the eotyledons of these speeies: stareh and protein. The eontent of followed by Lab lab with the dry material(DM). The eitoehemieal methods and the polarization mieroseopy indieate that the stareh grains in Lab lab are more numerous and presentes asmaller size. The proteie material presented homogeneously distributed around the stareh grains, in alI the eytoplasm of the eells. Lab lab was the speeie with the major proteie eontent, with about 25,6% of the DM. The proteie extraets analysis in SDS-PAGE revealed inumerable proteins and too mueh diferenees between the speeies. The Guandu presented a earaeteristie protin of 100 KDa and Mueuna may be eharaeterized by the proteins of smaller moleeular weight, like 36,5, 27,5 and 18,5 KDa. The 45 KDa protein was exelusive for Lab lab. The lipidis and free simpler earbohydrates are in low amout in this seeds. Though the eitoehemieal euts and eletronie mieroseopy of sweeping, it was verified one tipieal tegumentar strueture, with a dense layer of palisade and with eells quite elongated. The paliçade beeame metaehromatie when eolored with AT pH 4, O, due to the presenee of peetie substanees. AIso there were a strong eoloration of the PAS due to the presence of celulosys. None of the species showed the "Linea Lucida" in the cells of the testa, caracteristic of water impermeable seeds. The cromografic analisys revealed a great glucose, xylose and arabinose content in the teguments of these three species. In the Mucuna tegument, the presence of brown corps, posibly taninns, was detected. The data obtained in the embibement curve show that Guandu and Lab lab embibes faster. Mucuna embibed more slowly, and although it is also a permeable tegument specie, one can verify that it the testa that presents the major resistence to water entrance. So, it may be sugested that this major resitence is due to the presence of tannins, wich were present in great quantity only in this specie. The obtained results were still confronted with those finded in totaly impermeable species, whose tegument anatomy presents inumerable diferences in relation with the three studied species
Mestrado
Biologia Celular
Mestre em Ciências Biológicas
5
Helvik, Vilde Aspen. "Oslo Food Lab." Thesis, Norges teknisk-naturvitenskapelige universitet, Fakultet for arkitektur og billedkunst, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-17609.
Full text
6
Fernandes, Hugo Emanuel Mesquita. "Management consulting lab." Master's thesis, NSBE - UNL, 2011. http://hdl.handle.net/10362/10073.
Full textAbstract:
A Work Project, presented as part of the requirements for the Award of a Masters Degree in Management from the NOVA – School of Business and EconomicsThe purpose of this study was to investigate the exports generated in the geographical area under the management of ANA. Since the company have been increasing, and is not aware how they have been evolving. The analysis was done through an analytical overview over the company and all the activities that occur in the geographical area. Then, interviews were conducted to identify passengers’ major differences among the Portuguese airports. Based on all of the information were designed out-of-the box ideas to increase the level of exports.
7
Broderick, Jane Tingle, Maura Bishop, B. Huber, and L. Barrett. "Reggio Materials Lab." Digital Commons @ East Tennessee State University, 2018. https://dc.etsu.edu/etsu-works/4223.
Full text
8
Sharma, Vivek. "Development of Control Lab Interface for Data Acquisition using Lab VIEW." Thesis, KTH, Reglerteknik, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-106250.
Full textAbstract:
A lab named ‘System Identification Lab’ is a compulsory part of the course ‘Modeling of Dynamical System’ given by School of Electrical Engineering, Automatic Control at KTH. System identification is an experimental method to derive a mathematical model from the input and the output data. The apparatus used in the lab is a fan and a hinged rectangular plate. Both fan and plate are mounted on aslide. The idea of this lab is to collect the input and output data from this process. The input data is theDC voltage sent to the fan and the output is the angular displacement of the plate due to air stream from the fan. This data is then used to derive a linear model by applying different theoretical methods. The main focus of this thesis work has been to design a user interface for this lab, and implement it in LabVIEW, which is an easy to use, integrated graphical environment with built-in compatibility across a broad range of data acquisition and control hardware devices. In short, the interface first lets the user choose the sampling time and then one can choose between different input signals. The input and output signals are displayed as plots on the screen and can also be saved to a file. A second, similar interface has also been implemented, where the process is replaced by a simulation model. The simulation model is based on an identified linear model with some added disturbances and non-linear effects. The idea with the simulation model is that the ‘System Identification Lab’ then can be done without using the lab process. This report also includes an introduction to system identification and a discussion about how to choose appropriate input signals for an identification experiment. These methods are used to derive the simulation model and in order to understand the lab process better, some step responses are done and the process is also modeled from physical principles.
9
Schoerner, Jacob, and Miguel Müller. "Automated Assignment of Lab Assistants to Student Presentations at KTH Lab Sessions." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-229694.
Full textAbstract:
The authors study the case of lab presentations at KTH. Currently, lab assistants follow the First In First Out principle when deciding what student presentation to visit first. The authors study whether the Shortest Job Next discipline can give a significant advantage in presentation throughput. They create a simulation of a lab session, and simulate sessions with both SJN and FIFO, and varying values of time per presentation, number of assistants and number of lab rooms in the session. It is shown that Shortest Job Next gives a consistently higher number of presentations, but also on average a longer maximum waiting time. The effect on number of handled presentations is the highest when the time per presentation is low and the number of rooms is high.Författarna studerar labbpresentationer vid KTH. I nuläget baserar sig labbassistenter på First In First Out-principen när de bestämmer vilken ordning de ska besöka de olika studentgrupperna som har markerat sig som redo att presentera. Författarna undersöker huruvida Shortest Job Next-principen kan ge ett betydande övertag i antal presentationer per tidsenhet. De skapar en simulation av ett labbtillfälle och testar simulationen mot både FIFO och SJN, under ett antal olika värden på tid per presentation, antal tillgängliga övningsassistenter och antal rum i labbsessionen. Det visar sig att Shortest Job Next ger ett konsekvent högre antal presentationer per tidsenhet, men att den också medför en risk att vissa grupper får vänta väldigt länge på att presentera. Effekten på antal avklarade presentationer är som störst när tiden per presentation är låg och antalet rum är stort.
10
Linnerud, Ådne Solhaug. "Lab-oppsett for proteseforskning." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for teknisk kybernetikk, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-18593.
Full textAbstract:
Institutt for Teknisk Kybernetikk(ITK) ved NTNU har et programvarebibliotek for styring av proteser. Dette biblioteket består av et mønstergjenkjenningssystem som kan brukes til å styre en robothånd. Mønstergjenkjenning gir protesebrukeren mulighet til å styre en protese, men uten den grad av kontroll som er ønsket. Derfor er det i denne oppgaven blitt implementert et proporsjonalt styringssystem som skal gjøre at brukeren kan kontrollere en protese bedre. For å trene opp et slikt system er det utviklet metoder som skal brukes sammen med proteseguidet trening. Det er også utviklet treningssett som brukes for å lagre referanseverdier. For å vise at dette kan brukes på proteser, ble kontroll av en protese fra Motion Control implementert inn i ITKs bibliotek. Resultatene indikerer at dette fungerer bra, men at det å kontrollere flere frihetsgrader simultant er vanskelig. Derfor må det utvikles nye treningssett som kan forbedre kontroll av flere frihetsgrader simultant.
11
Dyrstad, Emil Anthonsen. "Relay Lab at NTNU." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for elkraftteknikk, 2014. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-27241.
Full textAbstract:
This thesis presents background on power system protection, relay principles, modern relay technology and relay testing, to support the design, practical set up and proposals for use of a new relay lab at NTNU.The paper includes a theoretical part describing the components of power system protection, their function and attributes. To better the understanding of the importance of power system protection, a short study of the different types of faults that may occur in a power system and how they can be calculated has been made.One chapter covering the principles of protective relaying functions relevant for the lab, is included. It covers the theory of overcurrent (including directional), distance and differential protection, as well as challenges one may encounter when applying these protective functions.A chapter on modern relay technology, describing the possibilities and benefits of micro-processor based relays, especially with regards to communication, is a part of the report. This chapter also includes sections describing the inputs and outputs, logic and function of modern relays.The essentials of relay testing is described in the paper. The different methods available for the testing of relays; scaled physical networks, relay testers and fault simulators are mentioned. Focus has been put on use of relay testers as it is most relevant for the lab. A description of common test procedures is also included. Selected relevant software has been studied to find a software which can be used in the lab exercises.Discussion of practicalities regarding the lab, i.e. the design and set up of the lab is also made in the thesis. Opportunities for, and use of the lab have been discussed. The basics of relay configuration is explained. Proposals for lab exercises that can be performed in the new relay lab are presented near the end.A list covering proposals for further work for the relay lab is the final part of the thesis.
12
Abinal, Dominique. "Lab-optim : didacticiel d'optimisation." Grenoble INPG, 1987. http://www.theses.fr/1987INPG0056.
Full textAbstract:
Presentation d'un outil de resolution des problemes d'optimisation avec ou sans contraintes. Ce logiciel est ecrit en fortran 77. L'utilisateur est guide tout au long de la session de travail par le biais d'un arbre de decision au sein duquel il peut se deplacer a son gre. La definition interactive du probleme est realisee par un interpreteur de fonction specialisee seconde par un derivateur formel. L'utilisateur peut alors selectionner une routine d'optimisation ou se laisser guider dans son choix. Le logiciel fournit toutes les informations calculables a l'optimum ainsi qu'une representation graphique locale
13
Abinal, Dominique. "LAB-OPTIM didactitiel d'optimisation." Grenoble 2 : ANRT, 1987. http://catalogue.bnf.fr/ark:/12148/cb37602062d.
Full text
14
Strong, Ramey. ""Remodeling" the Hadwiger Communication Laboratory : the lab manager manual and lab assistant training program /." View online, 2009. http://repository.eiu.edu/theses/docs/32211131592053.pdf.
Full text
15
Andersson, Cristoffer, Sebastian Christensson, and Mikael Davidsson. "Living Lab - En öppen innovationsmiljö." Thesis, Halmstad University, School of Information Science, Computer and Electrical Engineering (IDE), 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-2591.
Full textAbstract:
Living Lab är en öppen innovationsmiljö där innovationer samproduceras, testas och verifieras av användarna, tillsammans med företag och akademin i en kontext som representerar innovationens tänkta användningsområde. Genom samverkan kan olika värden skapas för företagen. Syftet med uppsatsen var att undersöka hur Living Lab skapar värde för företag och vilka värden företag kan identifiera ur de användarcentrerade aktiviteterna. Uppsatsen karaktäriseras av en kvalitativ ansats och grundar sig i en explorativ undersökning med djupintervjuer där fyra företag ligger till grund för uppsatsens resultat. Uppsatsen har visat att Living Lab skapat värden för företag genom att de fått mer tilltalande produkter, identifierat nya användarkategorier och samordnat resurser med företag. Living Lab är därmed värdeskapande för företag genom stöd för utvärdering, ny- och vidareutveckling av innovationer. Samverkan mellan användare, företag och akademin öppnar upp för ett kunskapsutbyte vilket skapar värde för företag då kompetensutveckling äger rum och en djupare kunskap om användarna kan erhållas
16
Suter, David. "DIGITAL PERCEPTION LAB - RESEARCH OVERVIEW." INTELLIGENT MEDIA INTEGRATION NAGOYA UNIVERSITY / COE, 2006. http://hdl.handle.net/2237/10421.
Full text
17
Rogers, Adam Gregory. "Precision mechatronics lab robot development." Texas A&M University, 2007. http://hdl.handle.net/1969.1/85854.
Full textAbstract:
This thesis presents the results from a modification of a previously existing research
project titled the Intelligent Pothole Repair Vehicle (IPRV). The direction of the
research in this thesis was changed toward the development of an industrially based
mobile robot. The principal goal of this work was the demonstration of the Precision
Mechatronics Lab (PML) robot. This robot should be capable of traversing any known
distance while maintaining a minimal position error. An optical correction capability
has been added with the addition of a webcam and the appropriate image processing
software. The primary development goal was the ability to maintain the accuracy and
performance of the robot with inexpensive and low-resolution hardware. Combining the
two abilities of dead-reckoning and optical correction on a single platform will yield a
robot with the ability to accurately travel any distance. As shown in this thesis, the
additional capability of off-loading its visual processing tasks to a remote computer
allows the PML robot to be developed with less expensive hardware. The majority of
the literature research presented in this paper is in the area of visual processing. Various
methods used in industry to accomplish robotic mobility, optical processing, image
enhancement, and target interception have been presented. This background material is
important in understanding the complexity of this field of research and the potential
application of the work conducted in this thesis. The methods shown in this research can
be extended to other small robotic vehicles, with two separate drive wheels. An
empirical method based upon system identification was used to develop the motion
controllers. This research demonstrates a successful combination of a dead-reckoning capability, an optical correction method, and a simplified controller methodology
capable of accurate path following. Implementation of this procedure could be extended
to multiple and inexpensive robots used in a manufacturing setting.
18
Poser, Stefan. "Austin-Roadstar und Atomic Lab." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-139057.
Full text
19
Lopes, Madalena Hibon de Campos Coelho Moreira. "Management consulting lab experience: ANA." Master's thesis, NSBE - UNL, 2011. http://hdl.handle.net/10362/10086.
Full text
20
Keval, Jorge Zabir Dias. "Management consulting lab: project TAP." Master's thesis, NSBE - UNL, 2011. http://hdl.handle.net/10362/10084.
Full textAbstract:
A Work Project, presented as part of the requirements for the Award of a Masters Degree in Management from the NOVA – School of Business and EconomicsTAP is facing the full-establishment and expansion of a competitor in the market, which in consequence will result in a negative impact on revenues. The aim of the project was to quantify the past and future impact that this competitor has on TAP and to recommend strategic guidelines to diminish that impact. The analysis are based on analytical models, field work and qualitative research. The results imply that TAP has to take action in the short and long term, with the aim to diminish the negative impact, stimulate profitable markets where TAP has a competitive advantage and customize their offer to capture all the market potential.
21
Lindholm, V. (Ville). "Lab-in-a-pocket -konsepteja." Bachelor's thesis, University of Oulu, 2017. http://urn.fi/URN:NBN:fi:oulu-201704281623.
Full textAbstract:
Tässä kandidaatintyössä esitellään ”Lab-in-a-pocket” -konsepti. Kyseinen konsepti on viimeaikaisen teknologisen kehityksen johdosta ottanut mittavan askeleen eteenpäin ja tuotteita voidaan käyttää useissa arkipäiväisissäkin asioissa. Kandidaatintyössä on esitetty näitä käyttökohteita, sekä konseptin syntyä ja sen kehitystä. ”Lab-in-a-Pocket” -laitteisiin tutustutaan perehtymällä kolmeen eri laitevalmistajaan ja heidän laitteisiinsa, sekä niiden käyttötarkoituksiin. Työssä on esitelty esimerkiksi PocketLabin toimintaperiaatteita ja eri laitteiden ominaisuuksiaThis Bachelor’s thesis introduces the concept of “Lab-in-a-Pocket. This concept has taken a major leap since the latest development in technology. These products can be used in some everyday situations. The most common uses, the creation and development of this issue is presented in this study. The “Lab-in-a-pocket” concept is introduced by telling about three different manufacturers and what kinds of products do they have as well as getting to know their purposes of use
22
Merriman, Carolyn. "Heart and Neck Vessels Lab." Digital Commons @ East Tennessee State University, 2013. https://dc.etsu.edu/etsu-works/8529.
Full text
23
Broderick, Jane Tingle, C. Lindsley, V. Holley, K. Robshaw, K. Boniol, and N. Martin. "A Reggio Inspired Materials Lab." Digital Commons @ East Tennessee State University, 2019. https://dc.etsu.edu/etsu-works/6001.
Full text
24
Hartz, Andrew Scott. "Lab Scale Hydraulic Parameter Estimation." Thesis, The University of Arizona, 2011. http://hdl.handle.net/10150/203499.
Full textAbstract:
Hydraulic tomography has been tested at the field scale, lab scale and in synthetic experiments. Recently Illman and Berg have conducted studies at the lab scale. Using their data hydraulic tomography can be compared to homogeneous anisotropic solutions using one pumping well or multiple pumping wells. It has been found that hydraulic tomography out performs homogenous methods at predicting hydraulic head for validation pumping experiments. Also it has been shown in this study that homogenous anisotropic tests exhibit scenario dependent behavior. Additional tests performed to further validate the conclusions made in this experiment include spatial moment analysis, response surface analysis, and synthetic hydraulic tomography and show consistent results providing additional validation of these findings. Additional study examining the principle of reciprocity has proven inconclusive.
25
Whealon, Teri M. "Impact of Supplemental Video Pre Lab Material for a Biochemistry Lab Practical on Student Overall Preparedness." Thesis, Southern Illinois University at Edwardsville, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10111518.
Full textAbstract:
Gel Electrophoresis, a widely used technique for the separation of proteins in a mixture, must be approached with strict adherence to proper technique for achievement of reliable results. The purpose of the research is to measure the effectiveness of the use of a three-part video as a pre lab preparatory tool to demonstrate to students proper technique prior to completion of the required lab experiment. The video included the processes and steps involved in making the gel, loading the gel, running the gel, and removing and staining the gel. Each semester only half of the class was given access to the video via Blackboard and had two weeks to view it with 24 hour access, while the entire class received the normal pre lab discussion given by graduate TA lab instructor. Both groups were given a questionnaire to be filled out as they completed the lab about the time required to complete each step and their level of confidence on a scale of 1 to 5 in their ability as they completed the steps and their overall confidence in their ability perform the lab while ensuring good or effective results. Prelab questionnaires, Lab questionnaires, instructor evaluations from completed gels, and data retrieved from Blackboard regarding if/when/how many times students actually viewed the video, were analyzed in an attempt to measure the effectiveness of the video as a useful teaching tool.
26
Olsson, Fredrik. "A Lab System for Secret Sharing." Thesis, Linköping University, Department of Electrical Engineering, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-2385.
Full textAbstract:
Finnegan Lab System is a graphical computer program for learning how secret sharing works. With its focus on the algorithms and the data streams, the user does not have to consider machine-specific low-level details. It is highly modularised and is not restricted to secret sharing, but can easily be extended with new functions, such as building blocks for Feistel networks or signal processing.
This thesis describes what secret sharing is, the development of a new lab system designed for secret sharing and how it can be used.
27
Keßler, Melanie. "The AVP Deficit in LAB Mice:." Diss., lmu, 2007. http://nbn-resolving.de/urn:nbn:de:bvb:19-65802.
Full text
28
Elghoul, Zoelfikar. "Manganese phosphate coating mini-line lab." Thesis, Högskolan i Halmstad, Sektionen för ekonomi och teknik (SET), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-23122.
Full textAbstract:
The following report is conducted in collaboration with the University of Halmstad. As the development of today's vehicles demands environmentalregulations require reduced emissions of CO2, performance, economy and safety, Lighter and efficient vehicles in transmission, this intensive development coupledwith re-optimization of the conflicting demands driveability, durability,efficiency and noise comfort. During the past 10 year the design margins hasbeen reduced. This means that the former research experience must be renewedfor development continues. As a part of the research conducted at HalmstadUniversity is an interest in being able to prepare these surfaces in different ways,in a lab environment. In this thesis, two processes in question, manganesephosphate and coating treatment. The purpose of this project is to construct a mini lab which will achieve theprocess of the surface treatment of machine element components in a laboratoryenvironment. The purpose of this project is to design and control the process which willconfigure all the details and specification required to achieve stagesof phosphate process as well the properties of every details in the chain ofimmersion and safety environment during the process stages, the task alsoincluding Risk analysis. The method that used was the same that was used by us during earlier courses inconstruction method written by Fredy Olsson, method principle /primary andmanufacturing. The development of the design has been done using brainstorming. The basic idea is a common idea where this since developed into aprototype.
29
Lilienkamp, Katherine A. (Katherine Ann) 1969. "Lab experiences for teaching undergraduate dynamics." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/17007.
Full textAbstract:
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2003.Includes bibliographical references (p. 443-466).
This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
This thesis describes several projects developed to teach undergraduate dynamics and controls. The materials were developed primarily for the class 2.003 Modeling Dynamics and Control I. These include (1) a set of ActivLab modular experiments that illustrate the dynamics of linear time-invariant (LTI) systems and (2) a two wheeled mobile inverted pendulum. The ActivLab equipment has been designed as shareware, and plans for it are available on the web. The inverted pendulum robot developed here is largely inspired by the iBOT and Segway transportation devices invented by Dean Kamen.
by Katherine A. Lilienkamp.
S.M.
30
Wessling, Owen B. (Owen Bradley). "RTFM--a digital design lab expert." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/41409.
Full text
31
Ferreira, Flávio Martinho Simões. "Home gateway do Living Usability Lab." Master's thesis, Universidade de Aveiro, 2012. http://hdl.handle.net/10773/10264.
Full textAbstract:
Mestrado em Sistemas de InformaçãoA população sénior tem crescido exponencialmente nos últimos anos, o que leva a que haja uma procura de recursos de prestação de serviços de saúde que é maior do que a oferta. De forma a resolver este problema surgiu o Ambient Assisted Living para apoiar seniores no seu quotidiano, dentro das suas habitações. Neste documento é descrito o desenvolvimento do Home Gateway para apoio aos serviços Ambient Assisted Living, do projeto Living Usability Lab, e respetiva arquitetura. O Home Gateway é a entidade responsável por gerir todos os recursos oferecidos na habitação do sénior. A arquitetura deste sistema é baseada na arquitetura orientada a serviços, utilizando o OSGi. Os recursos são todos disponibilizados através de serviços Web pelo que são descritos alguns dos serviços implementados. O Home Gateway desenvolvido responde eficientemente à necessidade de este ser autónomo, de interoperabilidade, de segurança, de escalabilidade, de conter monitorização, de personalização, de adaptação, de ser embebido e distribuído, de providenciar interação explícita, entre outros. O sistema desenvolvido é passível de ser expandido a outras áreas de saúde e a outros leques etários, para além do apoio à população sénior na própria habitação. Em suma e tendo em conta as conclusões e limitações do trabalho desenvolvido torna-se evidente a possibilidade de trabalhos futuros focados em soluções que podem vir a ser implementadas.
The elder population has been growing exponentially in the last years, which results in a greater search of provision of health care resources comparing to the provision of that services. In order to solve this problem the Ambient Assisted Living emerged to support the elderly in their daily life, within their homes. In this document, it’s described the development of the Home Gateway to support the services of Ambient Assisted Living, of Living Usability Lab project and its architecture. The Home Gateway is the entity responsible for managing all the resources available in the elderly's house. The Home Gateway architecture is based on service-oriented architecture using OSGi. The resources are all available through Web services, hence some of the implemented services are described. The developed Home Gateway responds effectively to the needs of being autonomous, of interoperability, security, scalability, monitoring, customization, adaptation, being impregnated and distributed, providing explicit interaction, among others. The system that has been developed may be used in other health areas and with different age ranges in addition to supporting the elderly in their own homes. In brief, and taking into account the conclusions and limitations of the developed work, it becomes clear the possibility of future work on the field focused on solutions that can be implemented.
32
Mendes, Diego Armando Areias. "Controlador adaptativo baseado em Xenomai Lab." Master's thesis, Universidade de Aveiro, 2012. http://hdl.handle.net/10773/10933.
Full textAbstract:
Mestrado em Engenharia Electrónica e TelecomunicaçõesUm controlador adaptativo é um controlador que possui mecanismos que lhe permite adaptar-se a mudanças no comportamento do sistema a controlar. Esta dissertação descreve a implementação de um controlador adaptativo em Xenomai Lab e o desenvolvimento de uma plataforma de ensaio para o teste e validação do controlador em questão. O trabalho desenvolvido terá aplicação como ferramenta de ensino da teoria de controlo ou como ferramenta de desenvolvimento de novos projetos.
An adaptive controller is a controller equipped with mechanisms that allows it to adapt to the changes in the process it is meant to control. This dissertation describes the implementation of an adaptive controller on Xenomai Lab and the development of a test bed meant to test and validate said controller. The work developed could be applied as an educational tool for control theory or as a development tool for new projects.
33
Moldenhauer, Lennart Jakob [Verfasser]. "Dispersion Engineered Photonic Biosensor: From a Chip-for-the-Lab to a Lab-on-Chip / Lennart Jakob Moldenhauer." München : Verlag Dr. Hut, 2019. http://d-nb.info/1186453850/34.
Full text
34
Guilnaz, Mirmoshtaghi Seyedeh. "Simulation of a lab-scale methanation reactor." Thesis, KTH, Kemiteknik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-90395.
Full textAbstract:
By the everyday increasing enthusiasm for using renewable-sustainable sources in energy production area, focusing on one and optimizing it in the best possible way should be of much interest. Biogas production from anaerobic digestion of wastes is a well known energy source which could be applied more efficiently if the CO2portion of it would be upgraded to CH4as well. There is a methanation reaction which could convert carbon dioxide to methane with the use of hydrogenation. In this report, the effort is to simulate this methanation reactor which is a catalytic bed of ruthenium on alumina base. The temperature change and its’ effect on reaction kinetics and equilibrium, also deriving designing parameters for the catalyst bed are different tasks which was tried to be covered in this thesis work. Based on calculations, the reactor can operate isothermally or adiabatically. The point is that each method has its own cons and pros. For the isothermal case finally the optimum temperature to run the reaction is decided to be 600 K in 10 bar total pressure. In adiabatic case then it is understood to work on interstage cooling strategy which in given conditions came to the number of 6 for reactors and 5 for interstage cooling devices. Afterwards it is thought to apply some technical changes to conventional adiabatic method and recycle some part of the product to the entrance of the reactor and assist the conversion. In this method number of reactors would be reduced to 2 and one heat exchanger in the middle. Selecting the best process in large scale treatment, needs lots of economical analysis and detail design while in small scale condition the most preferred method to run the reaction is isothermal.
35
Davari, Mahtab. "Clustering Lab value working with medical data." Thesis, Högskolan Dalarna, Datateknik, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:du-3030.
Full textAbstract:
Data mining is a relatively new field of research that its objective is to acquire knowledge from large amounts of data. In medical and health care areas, due to regulations and due to the availability of computers, a large amount of data is becoming available [27]. On the one hand, practitioners are expected to use all this data in their work but, at the same time, such a large amount of data cannot be processed by humans in a short time to make diagnosis, prognosis and treatment schedules. A major objective of this thesis is to evaluate data mining tools in medical and health care applications to develop a tool that can help make rather accurate decisions. In this thesis, the goal is finding a pattern among patients who got pneumonia by clustering of lab data values which have been recorded every day. By this pattern we can generalize it to the patients who did not have been diagnosed by this disease whose lab values shows the same trend as pneumonia patients does. There are 10 tables which have been extracted from a big data base of a hospital in Jena for my work .In ICU (intensive care unit), COPRA system which is a patient management system has been used. All the tables and data stored in German Language database.
36
Zhiqiang, Gao, and Ren Liwei. "Development of a lab instrument management system." Thesis, Högskolan i Halmstad, Sektionen för Informationsvetenskap, Data– och Elektroteknik (IDE), 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-19089.
Full textAbstract:
The overall goal of this project is to make the management of a large number of instruments easy at the Halmstad University workshop. An increase in the number of items borrowed needs to be managed. A lab instruments management system is developed and applied to manage the tools and instruments. The focus of the software is on managing information on borrowed instruments. The methods used come from the field of Java web application and include the methods object oriented programming, MySQL database, three-tier architecture and model-view-controller design pattern.The development of the management system is based on four features. Two features are maintenance of basic information of borrowers and instruments. The results showed that administrators can add, modify, delete, and query information of borrowers and instruments through web pages. The third feature is to borrow instruments, return instruments and to extend borrowing time. The last feature is to show statistics.The management system of instruments provides a multi-user platform for allowing the administrators to maintain user information and instrument information and helps the borrower to borrow, return and extend borrowing time. Simple statistical functions are implemented.
37
Valtonen, Arto. "Change Lab : Att arbeta med lärande förändring." Thesis, Blekinge Tekniska Högskola, Institutionen för arbetsvetenskap och medieteknik, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-1465.
Full textAbstract:
In order to be able to change, to maintain competitiveness as a company in a world where rapid changes is part of the daily life, it is crucial to have knowledge and methods in how to change. One method, originally developed in Finland, is the Change Laboratory. This method is said to be efficient, not only concerning change aspects but also learning, since change and learning in this method is intertwined. This Master Thesis (20p.) tells about the process of conducting a Change Laboratory with a Swedish high-tech company and analyses factors in the process that makes change possible.Detta Magisterarbete (20 poäng) berättar om processen kring ett Change Lab på ett svenskt high-tech företag och analyserar vilka faktorer i metoden som gör förändring möjlig.
0455-311143, -309097
38
Avendaño, Cofré Pablo. "Plan de negocios : agencia creativa Dragon Lab." Tesis, Universidad de Chile, 2014. http://www.repositorio.uchile.cl/handle/2250/115217.
Full textAbstract:
Seminario para optar al grado de Ingeniero Comercial, Mención AdministraciónNo autorizada poe el autor para ser publicada a texto completo
Dragon Lab es una agencia creativa fruto de la creación de un grupo de jóvenes emprendedores, quienes desarrollan estrategias comunicacionales para MyPES por medio de producciones audiovisuales, desarrollo web y campañas digitales, con un alto nivel de propuesta (estética, diseño y desempeño) y un trabajo enfocado en el negocio del cliente. La mayor ambición de la agencia es vender su pack promocional consistente en los 3 productos mencionados, con el fin de aprovechar las sinergias generadas y lograr generar reconocimiento de marca con un producto novedoso y sin precedentes. El mercado de las agencias creativas es amplio, sin embargo está concentrado en grandes empresas, filiales de conglomerados extranjeros. Pese a ello presenta un gran potencial de crecimiento, especialmente en internet, medio que permite mayor competitividad y es lugar de búsqueda (información, productos, personas etc.) plaza y mercado. La inversión en internet para el 2012 fue de $52.469.000.000 de pesos, la propuesta novedosa de Dragon Lab, permitirá capturar un mínimo de 0,1% de participación, significando ventas de $4.372.416 pesos mensuales, lo suficiente para el funcionamiento normal de la agencia y lograr en el corto plazo una posición en el mercado1. La empresa ha realizado más de 70 piezas audiovisuales desde octubre de 2012 y facturado más de $8.000.000 a noviembre de 2013, con un margen mayor al 30%. El proyecto, considerando un escenario normal2 asegura un VAN de $3.542.621, una TIR del 31% y una utilidad anual mayor a los $5.000.000 dentro de un horizonte temporal de 5 años, proyectando un crecimiento anual conservador del 10%.
39
Takatsui, Fabiana [UNESP]. "Sistema CIE Lab: análise computacional de fotografias." Universidade Estadual Paulista (UNESP), 2011. http://hdl.handle.net/11449/89626.
Full textAbstract:
Made available in DSpace on 2014-06-11T19:24:07Z (GMT). No. of bitstreams: 0
Previous issue date: 2011-03-15Bitstream added on 2014-06-13T18:51:41Z : No. of bitstreams: 1
takatsui_f_me_arafo.pdf: 767458 bytes, checksum: cdfc1503244cefbd6a145a45a2d6340a (MD5)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Por anos, os métodos de escolha de cor em odontologia têm sido realizados de forma subjetiva, baseados em experiências clínicasparticulares, sem nenhum embasamento científico. Com o aumento dos procedimentos estéticos restauradores, existe a preocupação na escolha da cor, cuja determinação envolve as técnicas visual e instrumental. A técnica visual é realizada com o auxílio de escalas de referências, e a técnica instrumental é realizada com o auxílio de espectrofotômetros, colorímetros e software de análise de imagens. Com o avanço tecnológico em equipamentos e com o auxílio de softwareque auxiliam na precisão da cor da imagem digital, este trabalho utilizou o softwareAdobe Photoshop 7.0, com o objetivo de avaliar a utilidade, na prática clínica, da máquina fotográfica digital para seleção de cor segundo a escala Vita LuminVaccum. Inicialmente, foi utilizada uma máquina amadora e dois examinadores fizeram a aferição, sendo realizado um estudo de correlação intra-classe para avaliação de concordância interexaminador. Concluiu-se que a análise computacional de imagens digitais pode ser usada para analisar guias de cores pelo sistema CIE LAB, assim como é confiável, sendo a diferença de cor entre os dois observadores clinicamente aceitável. Adicionalmente, por meio de uma máquina fotográfica profissional, foram comparados os modos manual e automático, para saber se a diferença de cor (ΔE) promovida por eles teve relevância clínica. Concluiu-se que, para as guias B1, B3 e C4 poderão ser usados quaisquer modos de câmera digital (manual ou automático), diferente do observado para a guia A3.5
For years, the methods of choice of color in dentistry, have been made subjectively, based on individual clinical experience, without any scientific basis. With the increase in esthetic restorations, the most sought in recent decades, for better color choice are the visualand instrumental techniques. The visual technique is performed with the aid of references, and the scales of instrumental technique are performed with the aid of spectrophotometers, colorimeters and image analysis software. Due to technological advances in equipment and due to the development ofsoftwares that improve precision in color of the captured digital image, the present study aimed to use the Adobe Photoshop 7.0 software, in order to evaluate the usefulness of the digital camerain clinical practice, when selecting color according to the Vita LuminVaccum scale.Interobserver agreement was verified when two examiners evaluated the coordinates L*, a* and b*, by using an unprofessional camera. Intraclass correlation coefficient was applied to verify interobserver agreement.It can be concluded that the computer analysis of photographic images can be used to analyze the color guides by means of the CIE L*a*b* system, as it was reliable and also because the color difference between the two observers was clinically acceptable. In relation of the use of a professional digital camera to verify the difference in color promoted by the manual and by the automatic mode, it can be concluded that for the guides B1, B3, and C4 any modes could be used, differently of the observed for the guide A3.5
40
Yang, Guang. "Team Lab, a collaborative environment for teamwork." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape3/PQDD_0017/MQ54543.pdf.
Full text
41
Drysdale, James Alexander. "Development of lab-on-a-chip technology." Thesis, Bangor University, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.401904.
Full text
42
Peretti, Jonah H. "Teacher's LAB : a platform for teacher learning." Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/62355.
Full textAbstract:
Thesis (S.M.)--Massachusetts Institute of Technology, Program in Media Arts & Sciences, 2001.Includes bibliographical references (leaves 75-76).
The Teacher's LAB software application is a development platform for innovative classroom activities. Educators can use the tool to construct and share representations of their day-to-day classroom practices. Through the process of representing, constructing, and sharing, teachers engage in critical reflection about their own practice. In my pilot study, this reflection helped teachers recognize essential educational building blocks. I call these elements pedagogical patterns and argue that understanding these patterns is a key dimension of teacher learning. Teacher's LAB promotes this understanding, helping classroom teachers become more reflective practitioners. Furthermore, using the software to share pedagogical patterns challenges the isolation of working teachers by allowing them to co-construct lessons with their colleagues. Educators and curriculum developers can collaboratively develop an expanding pattern language of pedagogy, leading to improved educational practices and new opportunities for learning.
Jonah H. Peretti.
S.M.
43
Black, James Aaron. "Compound droplets for lab-on-a-chip." Diss., Georgia Institute of Technology, 2016. http://hdl.handle.net/1853/54947.
Full textAbstract:
The development of a novel method of droplet levitation to be employed in lab-on-a-chip (LOC) applications relies upon the mechanism of thermocapillary convection (due to the temperature dependence of surface tension) to drive a layer of lubricating gas between droplet and substrate. The fact that most droplets of interest in LOC applications are aqueous in nature, coupled with the fact that success in effecting thermocapillary transport in aqueous solutions has been limited, has led to the development of a technique for the controlled encapsulation of water droplets within a shell of inert silicone oil. These droplets can then be transported, virtually frictionlessly, resulting in ease of transport due to the lack of friction as well as improvements in sample cross-contamination prevention for multiple-use chips. Previous reports suggest that levitation of spherical O(nL)-volume droplets requires squeezing to increase the apparent contact area over which the pressure in the lubricating layer can act allowing sufficient opposition to gravity. This research explores thermocapillary levitation and translation of O(nL)-volume single-phase oil droplets; generation, capture, levitation, and translation of O(nL)-volume oil-encapsulated water droplets to demonstrate the benefits and applicability to LOC operations.
44
Borracha, António Manuel Lira Gomes. "Laboratório remoto de automação industrial (Lab-RAI)." Master's thesis, Faculdade de Ciências e Tecnologia, 2012. http://hdl.handle.net/10362/9298.
Full textAbstract:
Dissertação para obtenção do Grau de Mestre em
Engenharia Electrotécnica e ComputadoresTendo como premissa juntar as necessidades do ensino prático à evolução da automação industrial e às tecnologias de informação disponíveis, foi desenvolvido este trabalho que é um laboratório remoto de automação industrial. Considerando todas as necessidades pedagógicas inerentes a um laboratório e todas as condições físicas e práticas a que a automação industrial está sujeita, foi desenvolvida uma arquitectura genérica que cumpre os requisitos formulados. Posteriormente foi implementada uma possível aplicação dessa arquitectura com dois laboratórios remotos físicos. O remotelab1 permite a programação de um PLC TSX Micro 3721 da Schneider controlando um simulador de tráfego rodoviário e o remotelab2 permite a programação de um PLC M340 também da Schneider que controla um simulador de monta-cargas industrial. Utilizando tecnologias como Servidores Web, bases de dados, acesso remoto, programação PHP, JavaScript e outras, é permitido aos utilizadores destes laboratórios terem uma experiência muito semelhante à presença num laboratório real. Ao administrador do sistema foram disponibilizadas diversas ferramentas, de modo a poder gerir remotamente este laboratório de forma simples e eficaz.
45
Takatsui, Fabiana. "Sistema CIE Lab : análise computacional de fotografias /." Araraquara : [s.n.], 2011. http://hdl.handle.net/11449/89626.
Full textAbstract:
Orientador: Leonor de Castro Monteiro LoffredoBanca: Maximiliano Piero Neisser
Banca: Camila Pinelli
Resumo: Por anos, os métodos de escolha de cor em odontologia têm sido realizados de forma subjetiva, baseados em experiências clínicasparticulares, sem nenhum embasamento científico. Com o aumento dos procedimentos estéticos restauradores, existe a preocupação na escolha da cor, cuja determinação envolve as técnicas visual e instrumental. A técnica visual é realizada com o auxílio de escalas de referências, e a técnica instrumental é realizada com o auxílio de espectrofotômetros, colorímetros e software de análise de imagens. Com o avanço tecnológico em equipamentos e com o auxílio de softwareque auxiliam na precisão da cor da imagem digital, este trabalho utilizou o softwareAdobe Photoshop 7.0, com o objetivo de avaliar a utilidade, na prática clínica, da máquina fotográfica digital para seleção de cor segundo a escala Vita LuminVaccum. Inicialmente, foi utilizada uma máquina amadora e dois examinadores fizeram a aferição, sendo realizado um estudo de correlação intra-classe para avaliação de concordância interexaminador. Concluiu-se que a análise computacional de imagens digitais pode ser usada para analisar guias de cores pelo sistema CIE LAB, assim como é confiável, sendo a diferença de cor entre os dois observadores clinicamente aceitável. Adicionalmente, por meio de uma máquina fotográfica profissional, foram comparados os modos manual e automático, para saber se a diferença de cor (ΔE) promovida por eles teve relevância clínica. Concluiu-se que, para as guias B1, B3 e C4 poderão ser usados quaisquer modos de câmera digital (manual ou automático), diferente do observado para a guia A3.5
Abstract: For years, the methods of choice of color in dentistry, have been made subjectively, based on individual clinical experience, without any scientific basis. With the increase in esthetic restorations, the most sought in recent decades, for better color choice are the visualand instrumental techniques. The visual technique is performed with the aid of references, and the scales of instrumental technique are performed with the aid of spectrophotometers, colorimeters and image analysis software. Due to technological advances in equipment and due to the development ofsoftwares that improve precision in color of the captured digital image, the present study aimed to use the Adobe Photoshop 7.0 software, in order to evaluate the usefulness of the digital camerain clinical practice, when selecting color according to the Vita LuminVaccum scale.Interobserver agreement was verified when two examiners evaluated the coordinates L*, a* and b*, by using an unprofessional camera. Intraclass correlation coefficient was applied to verify interobserver agreement.It can be concluded that the computer analysis of photographic images can be used to analyze the color guides by means of the CIE L*a*b* system, as it was reliable and also because the color difference between the two observers was clinically acceptable. In relation of the use of a professional digital camera to verify the difference in color promoted by the manual and by the automatic mode, it can be concluded that for the guides B1, B3, and C4 any modes could be used, differently of the observed for the guide A3.5
Mestre
46
Kögler, Toni. "Pulsformdiskrimination und Lichtausbeutemessungen von LAB-basierten Flüssigszintillatoren." Master's thesis, Helmholtz-Zentrum Dresden - Rossendorf, 2011. https://tud.qucosa.de/id/qucosa%3A30270.
Full textAbstract:
Die Grundlage vieler zukünftiger Flüssigszintillator-Neutrinoexperimente (SNO+, Daya Bay, LENA) ist das Lösungsmittel Lineare-Alkyl-Benzene (LAB, C6H5CnH2n+1, n = 10 - 13). Zusammen mit dem weit verbreiteten Szintillator 2,5-Diphenyloxazole (PPO) ist es ein farb- und geruchsloses Detektormaterial mit hohem Flammpunkt. Im Vergleich zu toluol- oder xylolbasierten Szintillatoren ist LAB+PPO preiswert und nicht gesundheitsschädlich. Die Eigenschaften von LAB machen es ebenfalls interessant für die Anwendung an nELBE, die Neutronenfugzeitanlage im Helmholtz-Zentrum Dresden - Rossendorf.
Ein neuer Ansatz zur Bestimmung der Lichtausbeute im niederenergetischen Bereich (bis 2 MeV) wird vorgestellt. Kombiniert wurden Messungen mit (quasi) monoenergetischen Gammastrahlungs-Prüfstrahlern und einem in dieser Arbeit aufgebauten Compton-Spektrometer. Letzteres ermöglicht die Bestimmung der Lichtausbeute bis zu 5 keVee. Der Birks-Parameter wurde für eine Lösung von LAB + 3 g/l PPO sowie für den Flüssigszintillator NE-213 bestimmt. Die relative Lichtausbeute in Bezug auf letzteren konnte mit diesen Messmethoden ebenfalls ermittelt werden. Zur spektralen Analyse des Lumineszenzlichtes wurden Messungen an Fluoreszenz- und UV/VIS- Spektrometern durchgeführt. Die Pulsformdiskriminationsfähigkeit auf LAB basierenden Szintillatoren wurde während eines Flugzeitexperiments in einem gemischten n-gamma-Feld eines Cf(252)-Prüfstrahlers ermittelt. Dabei kamen unterschiedliche Algorithmen der semi-analogen und digitalen Pulsformdiskrimination zum Einsatz.Linear alkyl benzene (LAB, C6H5CnH2n+1, n = 10 - 13) is the proposed solvent for the SNO+, the Daya Bay Neutrino and LENA experiment. In solution with the commonly used scintillator PPO it is a colourless, odourless and cheap liquid scintillator with a high fash point and low health hazard compared to toluene based ones. The properties of LAB make this scintillator interesting also for nELBE, the neutron time-of-fight facility at Helmholtz-Zentrum Dresden - Rossendorf. A new approach to measure the light yield in the low-energy range using a combination of quasi-monoenergetic photon sources and a Compton-spectrometer is described. The latter allows the measurement of the light yield down to 5 keVee (electron equivalent). The Birks- Parameter was determined for a homemade solution (LAB + 3 g/l PPO) and for NE-213. The light yield (relative to this standard scintillator) was confrmed by measurements using a fuorescence spectrometer. The ability of pulse-shape-discrimination in a mixed n-gamma- field of a Cf(252) source was tested using different digital and semi-analogue techniques.
47
Marinoble, Mark Anthony. "Considerations in Building an Elementary Makerspace Lab." Diss., Virginia Tech, 2019. http://hdl.handle.net/10919/88851.
Full textAbstract:
Globalization and technology have placed a recognizable pressure on both employers and educational institutions. Entry-level employees must be adaptive, innovative, collaborative, and have strong problem-solving and communication skills. To prepare students for the future workforce, schools must revisit existing practices and find new ways to foster innovation as the gap between the new skills students need verses what is being taught in public schools continues to grow (Bybee et al, 2006; Wagner, 2012). One way to increase students' interest and skills in STEM education is by incorporating makerspaces into schools. Makerspaces are physical spaces where people have opportunities to build and construct objects based on their own personal interests. Makerspaces foster the innovative ideas and skills students need upon graduation. This qualitative case study investigates why educational leaders decided to launch a makerspace lab and how school leaders established a model makerspace lab at an elementary school. The purpose of this study was to document and describe the change process connected with the implementation of the makerspace lab, how leaders navigated various obstacles, perceptions of the change process, and lessons learned from educators. The findings show that school leaders experienced a novel concept after visiting an extraordinary model makerspace program which demonstrated a unique approach to developing the innovative capacity of young learners. These experiences created a transformational moment in school leaders that motivated them to be change agents and launch their own makerspace lab. School leaders developed community partnerships with an engineering university, a Fortune 500 company, an education community foundation, and a large school district to make this work possible. Together, these educational and business collaborators created a model elementary makerspace model that is one of the first of its kind on the east coast and currently services students from other schools in the region. The findings further discuss the importance of community partnerships, inviting other schools to participate, having a model program to emulate, having the right people, and how a school initiative became a district opportunity.Doctor of Education
Globalization and technology have pressured both employers and educational institutions to change. Entry-level employees must be adaptive, innovative, collaborative, and have strong problem-solving and communication skills. To prepare students for the future workforce, schools must revisit existing practices and find new ways to foster innovation as the gap between the new skills students need verses what is being taught in public schools continues to grow (Bybee et al, 2006; Wagner, 2012). One way to increase students’ interest and skills in STEM education is by incorporating makerspaces into schools. Makerspaces are physical spaces where people have opportunities to build and construct objects based on their own personal interests. Makerspaces foster the innovative ideas and skills students need upon graduation. This qualitative case study investigates why educational leaders decided to launch a makerspace lab and how school leaders established a model makerspace lab at an elementary school. The purpose of this study was to document and describe the change process connected with the implementation of the makerspace lab, how leaders navigated various obstacles, perceptions of the change process, and lessons learned from educators. The findings show that school leaders experienced a novel concept after visiting an extraordinary model makerspace program which demonstrated a unique approach to developing the innovative capacity of young learners. These experiences created a transformational moment in school leaders that motivated them to be change agents and launch their own makerspace lab. School leaders developed community partnerships with an engineering university, a Fortune 500 company, an education community foundation, and a large school district to make this work possible. Together, these educational and business leaders created a model elementary makerspace model that is one of the first of its kind on the east coast and currently services students from other schools in the region. The findings further discuss the importance of community partnerships, inviting other schools to participate, having a model program to emulate, having the right people, and how a school initiative became a district opportunity.
48
de, Souza Carolina Vivian. "Lab experiments using different flotation cell geometries." Thesis, Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-81139.
Full textAbstract:
Due to the increasing demand for processing low-grade ores, larger volumes of material are being processed. Therefore, the size of flotation equipment has significantly increased for the past decades. The studies related to scale-up are and will remain to be crucial in terms of designing larger flotation equipment. One of the most important factors for flotation scaling-up is the “flotation rate constant”. Hence, the main aim of this investigation was to understand the scale-up criteria when the size of different laboratory-scale cells increases, using the Outotec GTK LabCell®. This was done by assessing the influence of impeller speed, as a hydrodynamic variable, on the flotation performance. Recovery was found to increase with an increase in the cell area to rotor diameter ratio. Flotation rate and recovery increased with an increase in the impeller speed until a certain point that it eventually decreased for the 2 l and 7.5 l cells. For the 4 l cell, the flotation rate and recovery decreased with increasing the impeller speed. The impeller speed of 1200 rpm allowed a successful scale-up based on the flotation rate constants and recovery when increasing the size of the cells. Maintaining the impeller speeds constant at 1300 rpm increased the flotation rate constants and recovery when increasing the cell size from both the 2 and 4 l cells to the 7.5 l cell. A further increase in the impeller speed to 1400 rpm also produced the flotation rate constants and recovery to increase as the cell size increased from both the 2 and 4 l cells to the 7.5 l cell. However, when increasing the cell size from 2 l to 4 l, good results were also observed for all impeller speeds. The products concentrate seem to become finer when decreasing the cell size, with only a few exceptions. The recovery of particles larger than 38 μm was found to differ considerably less among the different scales.
49
Oliveira, André Mota de. "Arquitetura de serviços do Living Usability Lab." Master's thesis, Universidade de Aveiro, 2012. http://hdl.handle.net/10773/10265.
Full textAbstract:
Mestrado em Sistemas de InformaçãoO aumento da esperança média de vida tem vindo a ser acompanhado por um aumento da quantidade de iniciativas AAL (Ambient Assisted Living). O Living Usability Lab (LUL) pretende o desenvolvimento de uma arquitetura inovadora para o desenvolvimento e teste de novos serviços e tecnologias AAL, incentivando um estilo de vida ativo e saudável para a população sénior ou com necessidades especiais. A presente dissertação propõe-se a descrever o trabalho desenvolvido no âmbito do projeto LUL, com especial ênfase na definição da arquitetura global de serviços. Após analisada a evolução das arquiteturas AAL é apresentado o modelo conceptual do projeto e a arquitetura definida para o desenvolvimento de novos serviços, promovendo aspetos como a disponibilidade e modularidade, explorando ainda uma perspetiva em Cloud Computing. De seguida, serão destacados os desenvolvimentos ao nível do Servidor Principal do LUL bem com alguns dos serviços nele disponibilizados. Fazendo uso das capacidades da arquitetura definida, o projeto culmina com o desenvolvimento de duas aplicações, uma para os Idosos e outra para os Profissionais de Saúde. A curto prazo, as aplicações e serviços desenvolvidos poderão ser testados num contexto real, por intermédio do Laboratório de Gerontologia (em fase final de construção) e da participação de algumas entidades relacionadas com a prestação de cuidados de saúde.
The increase in life expectancy has been followed by an increased amount of AAL (Ambient Assisted Living) initiatives. The Living Usability Lab (LUL) aims to develop an innovative architecture for the development and testing of new AAL services and technologies, encouraging an active and healthy lifestyle for senior citizens or with special needs. This thesis intends to describe the work done under the project LUL, with particular emphasis on the definition of the services global architecture. After analyzing the evolution of AAL architectures is presented the conceptual model and the architecture defined for the development of new services, promoting aspects such as availability and scalability, also exploiting a Cloud Computing perspective. Then, the developments at the LUL Main Server will be highlighted along with some of its services. Making use of the capabilities of the defined architecture, the project culminates with the development of two applications, one for the Elderly and other for the Health Care Professionals. For the short term, applications and services developed can be tested in a real context, through the Gerontology Laboratory (in final stage of construction) and the participation of certain entities related to the provision of health care services.
50
Reis, Bruno Ricardo Lito. "Development of a low cost RF Lab." Master's thesis, Universidade de Aveiro, 2017. http://hdl.handle.net/10773/23836.
Full textAbstract:
Mestrado em Engenharia Eletrónica e TelecomunicaçõesCom o aumento dos serviços de rede móvel disponíveis é necessária uma utilização mais eficiente dos recursos disponíveis. Para conseguir isso, são necessárias ferramentas de simulação e equipamentos de medida com boa precisão. A comunidade cientifica tem proposto novos equipamentos que permitem uma melhor caracterização de dispositivos de rádio frequência, como o Vector Network Analyzer (VNA). Neste trabalho são desenvolvidos alguns instrumentos de medida, usando componentes comerciais versáteis e de baixo custo. Os instrumentos implementados são um medidor de Potência, um osciloscópio e um VNA. Para o medidor de Potência é utilizado um detector de Potência e uma Field Programmable Gate Array (FPGA) para processar e exibir o resultado. Para o osciloscópio e para o VNA é utilizado um transceiver de rádio frequência para converter para banda base o sinal de rádio frequência e para converter para rádio frequência o sinal de banda base e uma FPGA para controlar o transceiver e para processamento. Foi criada uma interface para o utilizador recorrendo ao MATLAB R Graphical User Interface (GUI). Por m, as medidas efectuadas por cada um dos sistemas implementados são discutidas. A potência medida pelo medidor de potência é comparada com os valores de referência. O osciloscópio é avaliado pelas guras de mérito comuns e os parâmetros S medidos pelo VNA são comparados com os medidos por um VNA de referência.
With the increase of available mobile network services, it is needed a more e cient management of resources. To accomplish that, accurate simulation tools and measuring equipments are required. The scienti c community have proposed new equipments that allow a better characterization of Radio Frequency (RF) devices, as the VNAs. In this work some demonstrative measuring instruments are developed, using low cost and versatile/recon gurable commercial components. The implemented instruments are a power meter, an oscilloscope and a VNA. For the power meter it is used a power detector and a FPGA to process and display the result. For the oscilloscope and VNA it is used a RF transceiver to down-convert the RF signal and up-convert the baseband signal and a FPGA to control the RF transceiver and processing. An user interface for oscilloscope and VNA was created using MATLAB R GUI. Lastly, the measurements performed by each one of the implemented systems are discussed. The power level measured by the power meter is compared with the reference values. The oscilloscope is evaluated by common respective gures of merit and the Scattering Parameters (S-parameters) measured by the VNA are compared with the ones measured by a reference VNA.