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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
391

Aviation industry in global perspective / Letecký průmysl v globální perspektivě

Veselý, Martin January 2015 (has links)
The hypothesis claims that full service carriers (FSCs) will be forced to change their operating models. Additionally, the trends which form aviation market of the future are explored. The investigation is based on a financial assessment of ten important airlines incorporated in four different regions across the globe, between 2005 and 2014. According to the findings the trend of liberalization will continue, thus FSCs will continue losing market share to low cost carriers (LCCs) and as such, they will be made to change the way they operate in order to survive. The future aviation market is defined by a reshuffle of demand towards emerging countries, further rationalization of operating models and consolidation.
392

Možnosti alternativních zdrojů provozního zisku tradičních bank / The possibility of alternative sources of operating profit for traditional banks

Svatková, Eliška January 2014 (has links)
The thesis is a summary of the basic principles of bank trading focusing on the differences between business of traditional and "low-cost" banks. Furthermore, this thesis contains the analysis of operational revenues and costs of selected banks subsequently analyzed the structure of sources operational profit of selected traditional banks in comparison with selected "low-cost" banks in ČR. This thesis includes analyzis of trends that currently move the banking sector and following the trends analysis of non-banking services provided by banks in ČR which can be considered as an alternative source operational profit of traditional banks. The last part of the thesis includes evaluation of the survey, which was carried out to determine customer satisfaction with bank services in ČR.
393

Urban agriculture - a community development project

Orton, Jacques 02 February 2010 (has links)
NDLTD Innovative Learning through ETDs Award 2010. This dissertation attempts to provide a platform where the local residents can be educated, empowered and given the oppertunity to earn an income. This platform develops the community from the bottom up and could be implemented in townships across the country. The program takes form as an urban agricultural centre. The centre is located near Eerste Fabrieke Station in Mamelodi and is used as generator for other business, commercial and recreational activities. The urban agricultural centre also serves as a connection between Nellmapius and Mamelodi. Copyright / Dissertation (MArch(Prof))--University of Pretoria, 2010. / Architecture / unrestricted
394

Plataforma web de atividades terapêuticas: desenvolvimento e aplicação / Web platform of therapeutic activies: development and application

Janaina de Souza Simões 15 December 2017 (has links)
INTRODUÇÃO: O emprego de novas tecnologias na reabilitação de linguagem pode auxiliar amplamente o processo terapêutico mediante treino intensivo. Para isso, no entanto, é necessário que essas ferramentas atendam às demandas desses pacientes, e que o terapeuta seja protagonista no desenvolvimento dessas tecnologias. Essas ferramentas precisam ainda ser analisadas por meio de pesquisas científicas que avaliem sua efetividade no tratamento fonoaudiológico. OBJETIVOS: Desenvolver uma plataforma on-line para reabilitação de pacientes afásicos e avaliar sua eficácia em dois experimentos. MÉTODOS: Essa pesquisa foi dividida em três estudos: Estudo 1) criação da plataforma com emprego do modelo de desenvolvimento ágil e com uso de software livre, e aplicação das normas de qualidade ISO 25010. Estudo 2) estudo prospectivo, longitudinal e intervencionista, com a finalidade de prover treino de aprendizado de palavras, para avaliar as opiniões de 12 pessoas idosas cognitivamente sadias sobre o uso da plataforma. Os participantes foram divididos em três grupos: grupo controle (GC); grupo experimento escrita (GEE); grupo experimento repetição (GER). O treino foi conduzido na plataforma e foi composto por atividades de treino com emprego de 60 pseudopalavras, associadas a figuras. O estudo teve duração de um mês para cada participante, sendo composto por três etapas: 1) Pré-treino (1 dia); 2) Treino (5 dias) e 3) Pós-treino (3 dias). As etapas 1 e 3 foram comuns para todos os participantes. Na etapa 1, os participantes realizaram duas atividades a plataforma com o propósito de apresentar a plataforma e os estímulos usados nas outras etapas do estudo. Na etapa 2, os GEE e GER realizaram o treino de pseudopalavras, enquanto o GC realizou atividade de jogos. A etapa 3 foi dividida em três avaliações: após os cinco dias de treino; uma semana após a primeira avaliação e 1 mês depois do início do treino. A análise estatística avaliou a acurácia (número de acertos); efeitos de idade, escolaridade, intensidade e modalidade do treino; e o impacto de propriedades dos estímulos. O Estudo 3 apresenta o relato de caso de uma paciente com afasia de Wernicke grave, que usou a plataforma intensamente ao longo de 18 meses de terapia de linguagem. RESULTADOS: Estudo 1) Criação da plataforma com elaboração de 114 atividades terapêuticas, com exportação de dados para análise estatística e adequação às normas de qualidade ISO 25010. Estudo 2) Os participantes dos grupos GEE e GER apresentaram desempenho significativamente superior ao do GC em todas as etapas do pós-treino. Todos os participantes apresentaram opiniões favoráveis sobre a plataforma. Estudo 3) A paciente apresentou melhora significativa em habilidades linguísticas, com uso de 58 atividades da plataforma, totalizando 280 horas de treino com a ferramenta. CONCLUSÕES: A plataforma mostrou-se eficiente para atender às necessidades de pessoas idosas cognitivamente sadias e na reabilitação de linguagem / INTRODUCTION: The application of new technologies in language rehabilitation has the potential to improve therapies through intensive training. But, to that end, it is important that these tools meet the needs of patients and that the therapist becomes a main player during the development of these technologies. These tools also need to be evaluated by means of scientific research that evaluate their effectiveness on the speech and language pathology treatment. OBJECTIVE: To develop an online platform for the rehabilitation of aphasic patients, and to evaluate its effectiveness in two experiments. METHODS: This research was divided into three studies: Study 1) creation of the platform using the agile development model and free software, and application of ISO 25010 quality standards. Study 2) a prospective, longitudinal and interventional study with the purpose of providing training in word learning, in order to evaluate the opinions of 12 cognitively healthy elderly people on the use of the platform. Participants were divided into three groups: control group (CG), writing experiment group (WEG), and repetition experiment group (REG). The training was conducted on the platform and was composed of training activities with the employment of 60 pseudowords, associated with pictures. The study had a duration of one month for each participant, and was composed of three stages: 1) Pre-training (1 day), 2) Training (5 days), and 3) Post-training (3 days). Stages 1 and 3 were common to all participants. In the stage 1, the participants performed two activities in platform in order to present the platform and the stimulus used in the other stages. In stage 2, the WEG and REG performed pseudoword training; and the CG performed gaming activity. Stage 3 was divided into three evaluations: a) after five days of training, b) one week after the first evaluation, and one month after the beginning of training. The statistical analysis evaluated the accuracy (number of hits); effects of age, schooling, intensity, and training modality; and the impact of stimulus properties. Study 3) presented the case report of a patient with severe Wernicke\'s aphasia who used intensively the platform over 18 months of language therapy. RESULTS: Study 1) Creation of the platform with elaboration of 114 therapeutic activities, with export of data for statistical analysis and adaptation to ISO 25010 quality standards. Study 2) Participants in the WEG and REG groups presented performance significantly superior to the CG in all post-training steps. All participants presented favorable opinions on the platform. Study 3) The patient presented significant improvement in language skills with the use of 58 platform activities, totaling 280 hours of training with the tool. CONCLUSIONS: The platform proved to be an efficient tool in meeting the needs of cognitively healthy older people and in language rehabilitation
395

Identificação de adulteração de leite bovino pelo método de propagação de onda em meio material utilizando diafragmas piezelétricos /

Santos Junior, Marcos Messias dos January 2019 (has links)
Orientador: José Alfredo Covolan Ulson / Resumo: O leite é um alimento de alto valor nutritivo e de extrema importância na dieta alimentar especialmente de gestantes, crianças e idosos. Entre os alimentos mais consumidos está o leite bovino, o qual tem sido alvo de adulterações por diversas substâncias em todo o mundo por motivações econômicas, muitas vezes colocando em risco a saúde do consumidor. No controle de adulterações no leite, sensores aplicados na indústria alimentícia são ferramentas importantes para o controle de qualidade. Atualmente, as análises disponíveis no mercado para verificação de possíveis adulterações no leite geralmente são custosas e/ou demoradas, devido a necessidade de ambiente laboratorial e utilização de equipamentos de alto valor. Portanto, é de extrema importância, o desenvolvimento de metodologias e sensores de triagem para identificação de adulterantes no leite que sejam viáveis economicamente e de fácil acesso e utilização. Neste intuito, este estudo utilizou diafragmas transdutores piezelétricos para implementar uma metodologia que identificasse adulterações no leite por meio do método de propagação de ondas mecânicas (vibração e emissão acústica). Leite pasteurizado puro e padronizado e três substâncias comumente encontradas nos casos de adulteração do leite (peróxido de hidrogênio, ureia e bicarbonato de sódio) foram utilizados para as análises. Foi desenvolvido em impressora 3D um dispositivo para a inserção das amostras de leite a serem analisadas, onde dois diafragmas piezelétricos fo... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: Milk is a food with high nutritional value and extremely important in the diet especially for pregnant women, children and the elderly. Among the most consumed foods is beef milk, which has been tampered with by various substances around the world for economic reasons, often endangering consumer health. In the control of milk adulteration, sensors applied in the food industry are important tools for quality control. Currently, commercially available analyzes for possible milk adulteration are costly and/or time consuming, due to the need for laboratory environment and use of high value equipment. Thus, is of utmost important to develop methodologies and screening sensors for the identification of milk adulteration that are economically viable and easy to access and use. To this end, this study used piezoelectric transducer diaphragms to implement a methodology which identify milk adulterations through the mechanical wave propagation method (vibration and acoustic emission). Pure and standardized pasteurized milk and three substances commonly found in cases of milk adulteration (hydrogen peroxide, urea and sodium bicarbonate) were used for the analyzes. A device was developed in 3D printer for the insertion of milk samples to be analyzed, where two piezoelectric diaphragms were adapted. The first was excited by a chirp signal with 1 V of amplitude and a frequency band from 0 to 65 kHz with 2 Hz pitch and 1.2 second duration, and concomitantly acquired the response signal of th... (Complete abstract click electronic access below) / Mestre
396

MISIROOT: A ROBOTIC MINIMUM INVASION IN SITU IMAGING SYSTEM FOR PLANT ROOT PHENOTYPING

Zhihang Song (8764215) 28 April 2020 (has links)
<p>Plant root phenotyping technologies play an important role in breeding, plant protection, and other plant science research projects. The root phenotyping customers urgently need technologies that are low-cost, in situ, non-destructive to the roots, and suitable for the natural soil environment. Many recently developed root phenotyping methods such as minirhizotron, CT, and MRI scanners have their unique advantages in observing plant roots, but they also have disadvantages and cannot meet all the critical requirements simultaneously. The study in this paper focuses on the development of a new plant root phenotyping robot that is minimally invasive to plants and working in situ inside natural soil, called “MISIRoot”. The MISIRoot system (patent pending) mainly consists of an industrial-level robotic arm, a mini-size camera with lighting set, a plant pot holding platform, and the image processing software for root recognition and feature extraction. MISIRoot can take high-resolution color images of the roots in soil with minimal disturbance to the root and reconstruct the plant roots’ three-dimensional (3D) structure at an accuracy of 0.1 mm. In a test assay, well-watered and drought-stressed groups of corn plants were measured by MISIRoot at V3, V4, and V5 stages. The system successfully acquired the RGB color images of the roots and extracted the 3D points cloud data which showed the locations of the detected roots in the soil. The plants measured by MISIRoot and plants not measured (controls) were carefully compared with Purdue’s Lilly 13-4 Hyperspectral Imaging Facility (reference). No significant differences were found between the two groups of plants at different growth stages. Therefore, it was concluded that MISIRoot measurements had no significant disturbance to the corn plant’s growth.</p>
397

Squishy Books: A Low-Cost Method of Adapting Books to Make Them Accessible for Everyone

Keramidas, Cathy Galyon, Hale, K. D. 01 July 2016 (has links)
No description available.
398

La Calidad de Servicio y la Satisfacción en relación con la Intención de Recompra en pasajeros de vuelos nacionales de Aerolíneas Low Cost que operan en el mercado peruano / Service Quality and Satisfaction regarding Passenger Repurchase Intention in domestic Low Cost Airlines operating in the Peruvian Airline Market

Alejandro Carrillo, Alvarez Maza, Mejía Azabache, Sebastián 01 February 2020 (has links)
En el presente trabajo se buscará analizar el mercado de aerolíneas Low Cost en la zona de Lima Metropolitana, Perú. Teniendo como principal objetivo confirmar si existe relación entre las variables: Calidad de servicio (AIRQUAL), Satisfacción e Intención de recompra. En este trabajo se realizó un estudio preliminar sobre la situación del mercado peruano; encontrando un crecimiento considerable en los últimos años. Sin embargo, se halló evidencia de un descontento por el servicio recibido por parte de las aerolíneas en cuestión pertenecientes a la categoría Low Cost. Por otro lado, bajo la información de investigaciones previas hechas principalmente en Europa y Asia se pudo ver la relación positiva existente entre la satisfacción de usuarios como resultado de la correcta aplicación de la calidad de servicio. Así como también la intención de recompra se vio enlazada a las otras variables como resultado de estas. Finalmente, la metodología a utilizar tendrá un alcance correlacional como explicativo; utilizando una recolección de datos en el aeropuerto Jorge Chávez, a pasajeros provenientes de vuelos nacionales, así como también se recolectará información de manera online a través de cuestionarios de Google. / In this paper we will analyze the Low Cost airline market in the Lima Metropolitan area, in Peru. Our main objective is to confirm if there is a relationship between the variables: Quality of service (AIRQUAL), Satisfaction and repurchase intention. Regarding our purpose, a preliminary study was carried out about the situation of the Peruvian market; finding considerable growth in recent years in number of passengers and revenue. However, evidence was found about the dissatisfaction with the service provided by the airlines in question belonging to the Low Cost category. On the other hand, under the information of previous investigations carried out mainly in Europe and Asia, it was possible to found the positive relationship between user satisfaction as a result of a correct application of service quality. As well as the repurchase intention was linked to the other variables as a result of these. Finally, the methodology to be used will have a correlational and explanatory scope; Using data collection from passengers using domestic flights, as well as information will be collected online through Google questionnaires. / Trabajo de investigación
399

Fotokatalytické vrstvy oxidu wolframového připravené materiálovým tiskem / Photocatalytic layers of tungsten trioxide fabricated by material printing

Saňák, Tomáš January 2020 (has links)
This diploma thesis deals with milling of dispersed particles of WO3 using low-cost wet ball milling. Thin layers of WO3 were formed from them. These layers were characterized by profilometry, turbidity measurements, XRD and SEM. The photocatalytic activity was studied by the electrocatalytic properties of these layers. Profilometric measurements showed declining trends with milling time. XRD measurements confirmed the milling process and revealed a change in the crystalline phase during this process. Electrophotocatalytic measurements confirmed the photocatalytic activity of these layers and revealed its trends.
400

Analýza faktorů ovlivňující délku působení nízkonákladového dopravce na trhu / Analysis of factors affecting the survival time of the low cost carrier on the market

Janků, Tomáš January 2020 (has links)
The objective of the thesis is to perform an analysis of low cost carrier market in the Europe, case studies of defunct and successful low cost carriers and to determine factors, which affect survival time of low cost carrier on the market. The thesis is focused on the European market in 2007-2017. It includes brief description of origin of low cost carriers and their spread to the European market. Next part is dedicated to general description of a low cost carrier and analysis of the European low cost market. Three defunct low cost carriers are described in the next chapter, which includes basic information and detailed description of their actions. It includes determination of cause of ceasing their operation. Three successful low cost carriers are described in the same manner. In the end, the factors affecting survival time of low cost carriers are determined with usage of an analysis of economic and operational parameters of low cost carriers.

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