1,720,958 research outputs found
Lean Indicators in the Automotive Industry
No full textEste proyecto presenta un estudio teórico de los Indicadores, Métricas y KPI
(Indicadores Clave de Rendimiento) en la industria automotriz. Se explora cómo
estas medidas de rendimiento se definen, clasifican y alinean con los principios
de la Manufactura Lean, como la eliminación de desperdicios y la mejora
continua. A partir de una revisión bibliográfica y ejemplos industriales, se
desarrolla un marco de clasificación que agrupa las medidas en categorías
operativas, financieras y de recursos humanos. Se analizan KPIs clave como la
Eficiencia General de los Equipos (OEE), la Tasa de Desperdicio y el
Rendimiento de Primera Pasada (FPY). El estudio también considera las
tendencias en transformación digital, los retos de estandarización y futuras
líneas de investigación. El trabajo concluye destacando los KPIs más utilizados
en operaciones automotrices y la importancia de su alineación con los objetivos
estratégicos de Lean.This project presents a theoretical study of Lean Indicators, Metrics, and Key
Performance Indicators (KPIs) in the automotive industry. It explores how these
performance measures are defined, classified, and aligned with Lean
Manufacturing principles such as waste elimination and continuous
improvement. Based on literature review and industrial examples, a
classification framework is developed that groups performance measures into
operational, financial, and human resource categories. Key KPIs such as Overall
Equipment Effectiveness (OEE), Scrap Rate, and First Pass Yield (FPY) are
discussed. The study also considers digital transformation trends, challenges
of standardisation, and future research directions. The project concludes by
highlighting the most frequently used KPIs in automotive operations and the
importance of aligning them with strategic Lean goals.Departamento de Organización de Empresas y Comercialización e Investigación de MercadosGrado en Ingeniería Mecánic
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Investigating molybdenum dioxide as anode material in lithium ion batteries
Full text linkResearch conducted on metal oxides such molybdenum dioxide, has shown that the material exhibits a higher capacity than commercially used graphite and has great potential to be considered as alternative anode material for Li-ion batteries. In this study we investigate the impact that morphology of nano-structured molybdenum dioxide has on the electrochemical performance of the Li-ion battery. Three samples namely Sample 1, 2 and 3 were synthesized using hydrothermal method, with an increase in crystallinity from Sample 1 to 3. Electrospraying deposition was then utilized to form a thin film of the as synthesized MoO2 powders on a Ni substrate, which was utilized as negative electrodes in Li-ion batteries. The materials were investigated as negative electrodes in Li-ion batteries at a voltage range of 0.05-3 V (vs. Li/Li+ ) and a fixed current density of 100 mA g-1 . The electrochemical results show that the lattice structure of MoO2 has great impact on the performance of the anode material at room temperature. Sample 1, which had the lowest crystallinity and smallest particle size, had the most stable electrochemical performance when compared to Samples 2 and 3 with higher crystallinity and particle sizes. In a separate study it was observed that addition of a carbon component contributes to the improved cycling stability of the MoO2 anode material by hindering MoO2 particles from aggregating during electrochemical testing. Carbon also increases the electronic conductivity of MoO2 resulting in a higher capacity and improved electrochemical performance of the Li-ion battery as a whole. Proper morphology, structure and particle size are necessary for MoO2 to be employed as an anode material in Li-ion batteries, because the anode material undergoes a multitude of aging mechanisms in it's crystallinity and morphology during the electrochemical testing
An implementation analysis of e-learning: a case study of Kwapata Secondary School, Dambuza township.
Full text linkThesis (MSocSci)- University of KwaZulu-Natal, Pietermaritzburg, 2018.The use of information communication technologies (ICTs) is being re-introduced in the South African public schooling system as a development tool used to improve the quality of education and expand access to equal educational opportunities to all learners and teachers including previously disadvantaged schools and communities for full participation in education and society. The implementation of e-learning is guided by the White Paper on e-Education 2004 which was published as the South African governments’ symbol of commitment to ensure that all learners are ICT capable and ICTs are used optimally for teaching and learning purposes. The efforts to harness the potential of ICT use through implementation of e-learning programmes in SA public schools have been met with the reality of limited government capacity in terms of ICT funding, investment and expertise to deliver ICT skills training and infrastructure to remote, over populated, ill-resourced schools in rural and township schools. This issue prompted the investigation into, the implementation of e-learning at KwaPata Secondary School, Dambuza Township in order to discover the factors that hinder or facilitate the implementation process.
Findings revealed that there is limited understanding of the purpose of e-learning amongst teachers and learners which is reflected in the teachers limited use of ICTs to information presentation which in turn diverts from the role of e-learning which is to create a learner-focused learning environment. The main barrier affecting teachers and learners ability to implement e-learning at KwaPata Secondary School is the lack of sufficient ICT resources and maintenance of ICT equipment for e-learning to take place in a structured way instead of the ad hoc manner. Consequently, the extent of e-learning implementation is restricted, resulted in only certain subjects being able to use the ‘e-learning room’ and ICT resources available at KwaPata Secondary School. However, this is not simply an issue of physical access, it is further complicated by teachers’ lack of appreciation and motivation to use and develop coping strategies to overcome access challenges. In terms of the partnership, Dimension Data suffers from a lack of financial and human resource capacity to deliver alone, efforts to overcome these challenges are undermined by lack of co-ordination and communication amongst other relevant stakeholders. The partnership was established to overcome social and economic obstacles tasked with implementing e-learning, however, the study shows that the service provider is faced with the same problem of lack of adequate capacity, funding and support as government to effectively deliver ICTs alone
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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