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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.
451

Navrhněte řešení spalování s vysokou účinností a nízkou emisí NOx pro granulační parní kotel,130 t/h,s parametry páry 13,6 MPa,540°C / The proposal of measures for high efficiency burning and lowering of NOx emissions for boiler 130 t/h,13,9 MPa,540°C

Burýšek, Jan January 2014 (has links)
This thesis concerns with control calculation of steam boiler. The work is divided into several parts. In the individual parts are executed stechiometry calculations, the enthalpy of flue gas and power of the heat exchange surfaces. Based on the results it is proposed location of the SCR.
452

Návrh výpustných a odběrných objektů vodního díla Nové Heřminovy / Design of outlet and intake objects of Nové Heřminovy dam

Neuvirt, Petr January 2017 (has links)
In this thesis was presented Nové Heřminovy dam with basic parameters. Requirements on bottom outlets and intake objects are presented as well. Analysis of used valves on all dams in Czech Republic was done as an underlay for suggestions of bottom outlets in this thesis. The main task was to suggest three variations of bottom outlets. Differences are in number of outlets, dimensions, placing and valves. Then variation of intake objects. Each of variation was verbally described and filled with calculations.
453

Impacts of strategic communication practices on local-level employees : Heimstaden Flogsta: a case study.

Sobejano, Alberto January 2019 (has links)
Over the last three years, Heimstaden, a real-estate company based in Sweden, has gone through a complex process of redefinition of its identity, defining values and principles. This process is especially delicate in one of the neighborhoods managed by the company, Flogsta, where Heimstaden owns and administrates 2014 student apartments. In the context of this identity definition process, this study analyzes the communication strategies and the organizational identity transmission practices within the company, focusing on the local-level employees’ understanding and experience of Heimstaden’s identity and strategies. From a theoretical standpoint, the research parts from Hallahan, Holtzhausen, van Ruler, Verčič and Sriramesh´s (2007) initial ideas on strategic communication, and implements van Ruler´s (2018) approach to the role that communication plays within strategic communication, as well as to the dichotomy between one-way vs two-way strategies of communication. The analysis also incorporates Schinoff, Corley and Roger’s (2016) views of organizational identity. The research consists of 6 semi-structured interviews with Heimstaden employees. In addition to that, participant observations were also carried out daily over a period of 5 months, due to my position as a Heimstaden employee stationed in Uppsala. The findings of the study reveal that many of the one-way communication strategies currently in use within Heimstaden, are failing at making the local-level employees aware and participant of the company’s identity and changes. Consequently, this study identifies great differences in the way that local-level employees relate to the company’s new identity and principles with respect to the way in which top-level employees do. These differences, in turn, generate that the company’s identity and new way of doing things is not projected properly towards the clients, generating, arguably, reputational problems for Heimstaden in the studied area.
454

Att upphöra med kriminalitet : En kvalitativ studie av livsstilskriminellas resa mot en livsstilsförändring / Ending crime : A study of lifestyle criminals jouerney towards a new life

Hedman, Anna, Johansson, Olivia January 2019 (has links)
I denna studie har fyra före detta livsstilskriminella intervjuats för att ta reda på vad som föranledde deras beslut att upphöra med en kriminell livsstil, hur respondenternas resa mot förändring sett ut samt vilka avgörande faktorer som funnits under processens gång.  Det är en kvalitativ studie där semistrukturerade intervjuer har gjorts med personer som själva identifierat sig som före detta livsstilskriminella. Materialet har analyserats utifrån en modell utvecklad av Antonovskys (1991) teori Känsla av Sammanhang, begreppet Rock Bottom och teorier om Sociala Band (Hirschi, 1969; Sampson och Laub, 1993).  Analysen följer en kronologisk ordning, vilket i studien benämns som resan mot en livsstilsförändring. Resan startar vid en avgörande tid i livet där respondenterna har nått botten, vilket kan jämföras med Rock Bottom. Detta är vad respondenterna själva valt att kalla vändpunkten och blev startskottet på en lång resa. När respondenterna nått botten var de sociala banden till det konventionella samhället nästintill obefintliga och de hade därmed en avsaknad av social kontroll. Under tiden för förändringen förbättrades de sociala banden till det konventionella samhället successivt. Nya sociala sammanhang, sysselsättningar och nära relationer byggdes upp och de sociala banden ledde till att respondenterna inte längre ville begå brott. I krisen, som skulle föranleda vändpunkten, hade respondenterna en låg känsla av sammanhang, vilket har visat sig vara starkt sammankopplat med svaga sociala band till det konventionella samhället. Allt eftersom tiden gick och de sociala banden förstärktes ökade även känslan av sammanhang. Analysmodellen visar att alla dessa faktorer samverkar med varandra och är under förändring i uppbrottsprocessen. Den här processen övergår efter ett tag till att bara vara en del av livsloppet, som pågår för resten av livet. Utöver detta har studien visat att en individ som ska kunna upphöra med brott behöver också upphöra med droger.
455

Mobile banking and the financial services needs of the poor : an adoption framework

Tshitenge, Mbali Paulinah 11 August 2012 (has links)
“Over the past ten years, ITCs have become an important element in sustaining economic growth and poverty reduction through increasing efficiencies, enabling the delivery of social services, or creating new sources of income and employment” (Fourati, 2009, p. 37) . m-banking is one such technological development that has a potential to increase economic participation by low-income consumers. This research examines the factors influencing the adoption of mobile banking by low-income consumers in South Africa, with a special focus on the banking needs of the poor. The research framework was adapted from Tan and Teo (2000) and assessed the impact of these nine variables on the intention to adopt m-banking: relative advantage, compatibility with values, compatibility with banking needs, compatibility with cell phone use experience, complexity, “trialibility”, risk, self-efficacy and support. Data for this study was collected through a physical hardcopy survey in Soweto, in Gauteng.The research found that low-income consumers will consider adopting m-banking as long as it is offers them an improved way over the current mechanisms of managing their money, it is compatible with their financial services needs and they consider themselves as having the necessary skills to use it. / Dissertation (MBA)--University of Pretoria, 2012. / Gordon Institute of Business Science (GIBS) / unrestricted
456

Do local firms have a competitive advantage over multinational enterprises?

Janse van Rensburg, Ulrich 23 February 2013 (has links)
This study describes the factors that drive competitiveness between local firms and multinational enterprises (MNE) in a retail consumer market of an emerging country. It also seeks to identify the approaches and strategies the competitors consider and adopt to maintain the advantage in the consumer market.The objective of this study is to identify the factors local firms and MNE’s will consider when competing with each other. The study also wants to identify the preferred mode of entry of MNE’s.The study will be a quantitative study where relationships between competitors and their performance in the market are measured.The results revealed that local firms do have a competitive advantage over MNE’s in the retail consumer market due to the local firm’s knowledge of the market, rather than the technology and skills. It’s also clear that MNE have a preferred mode of entry and they chose to compete in the industries where they are stronger than the local firms. / Dissertation (MBA)--University of Pretoria, 2012. / Gordon Institute of Business Science (GIBS) / unrestricted
457

The role of consumer behaviour in South Africa’s short term microinsurance

Ntuli, Sibusiso Ntobeko Dawn 24 February 2013 (has links)
This research is concerned with understanding the role of consumer behaviour in microinsurance. There are notable factors such as premium flexibility, household income and marital status which serve as demand determinants of microinsurance; however the ultimate challenge is to influence consumer behaviour enabling growth of this insurance product. An established microinsurance sector results in the financial inclusion of low income consumers currently situated at the Bottom of the Pyramid, this is followed by economic development and subsequently economic growth for the broader society.Data was collected using a questionnaire from participants residing in East Bank, Alexandra, a South African township with a significant number of households in the LSM 1-4. The questionnaire collected data relating to basic financial services, characteristics of the Bottom of the Pyramid, as well as short term microinsurance demand.The findings show an immediate need towards the understanding of consumer behaviour by microinsurance stakeholders, including government and the private sector. It is only through innovation, partnership and low income consumer understanding that the desired levels of microinsurance demand will be attained. / Dissertation (MBA)--University of Pretoria, 2012. / Gordon Institute of Business Science (GIBS) / unrestricted
458

Corporate Social Responsibility : A brilliant term: but what is the point?

Cederholm, Christoffer, Drijovski, Oliver January 2011 (has links)
Syfte Denna uppsats syftar till att kartlägga begreppet CSR och redogöra för dess innebörd. Uppsatsen syftar även till att förklara varför företag arbetar med CSR samt hur kunder förhåller sig till detta. Metod Vi har gjort en multipel fallstudie på företagen Electrolux AB, Swedbank AB och Swedish Match AB. Vi har genomfört telefonintervjuer med respektive företag samt gjort en kundundersökning för att se vad kunderna anser om företagens samhällsansvar. Uppsatsen bygger på en abduktiv forskningsansats och en kvalitativ undersökningsdesign. Teoretisk referensram I den teoretiska referensramen har vi kartlagt vad begreppet CSR betyder och vilka ansvarsområden som omfattas av begreppet. Vidare har vi lyft fram olika åsikter om CSR och beskrivit redovisningen av CSR samt redogjort för kopplingen mellan CSR och ekonomisk lönsamhet. Vi har även beskrivit två relevanta teorier som påverkar företagens CSR-arbete, nämligen intressentteorin och legitimitetsteorin. Resultat och slutsats CSR är ett begrepp som används för att beskriva företagens samhällsansvar. Begreppet omfattar ekonomiska, sociala, miljömässiga, etiska och legala aspekter, vilka samtliga måste samverka med varandra för att uppnå hållbarhet. CSR uppfattas positivt av kunderna och kan därmed ge företagen konkurrensfördelar samt bidra till en god ekonomisk lönsamhet. / Purpose The purpose of this paper is to examine the term CSR and analyze the meaning of the term. This paper also aims to explain why companies work with CSR and how customers’ in general are affected by CSR. Methodology We have done a multiple-case study at Electrolux AB, Swedbank AB, and Swedish Match AB. We performed a telephone interview with one CSR responsible person at each company. We also did a customer survey in order to find out what the customers think about the companies social responsibilities. The paper is based on an abductive reasoning and a qualitative research design. Theoretical perspectives The theoretical framework describes the term CSR, different aspects and opinions about CSR, sustainability reporting, and the correlation between CSR and economic viability. We have also described two relevant theories, the stakeholder theory and the legitimacy theory, which both affect the companies’ work with CSR. Conclusions CSR is a term which describes companies’ responsibility towards the society. The term CSR includes economic, social, environmental, ethical, and legal aspects. All of these aspects must be considered and interact with each other to reach the ultimate goal, sustainability. CSR is essential to customers and may therefore give responsible companies’ a competitive advantage and contribute to long-term economic viability.
459

Analyzing the benefits of reading strategy instruction for reading comprehension in L2 English learners / En analys av de positiva effekterna av lässtrategiundervisning på läsförståelse hos L2 Engelskaelever

Wibell-Kähr, Gustav, Nilsson Ek, Filip January 2021 (has links)
This study investigates the potential benefits of reading strategy instruction in the English classroom in an L2 learner context. We examined the effects of reading strategy instruction on reading comprehension for L2 learners and investigated howreading strategies should be taught in the context of Swedish upper secondary school. To this end, six empirical studies were evaluated. We found that reading strategy instruction had a positive impact on reading comprehension in general, but that it was especially effective for certain student groups. Namely, intermediate learners benefitted more than other groups, while the weakest students improved the least in response to instruction. Furthermore, the research we examined suggests that it may be advantageous to focus on teaching a single strategy at a time. However, it is important to eventually expand students’ range ofstrategies long-term, since many pupils tend to over-rely on problem-solving strategies to the detriment of their progress in reading. Thus, emphasizing the less frequently used support strategies during instruction may help students read moreefficiently. Additionally, for reading strategies to best benefit learners, they should be taught in a clear, step-by-step manner. Finally, we argue that using aspects of Vygotsky’s sociocultural theory to inform lesson plans would greatly benefit students, especially those who are less proficient. Due to the lack of research in the increasingly heterogeneous Western world, future research should investigate how reading strategy instruction behaves in a multicultural context in the West.
460

REM: Relational Entropy-Based Measure of Saliency

Duncan, Kester 07 May 2010 (has links)
The incredible ability of human beings to quickly detect the prominent or salient regions in an image is often taken for granted. To be able to reproduce this intelligent ability in computer vision systems remains quite a challenge. This ability is of paramount importance to perception and image understanding since it accelerates the image analysis process, thereby allowing higher vision processes such as recognition to have a focus of attention. In addition to this, human eye fixation points occurring during the early stages of visual processing, often correspond to the loci of salient image regions. These regions provide us with assistance in determining the interesting parts of an image and they also lend support to our ability to discriminate between different objects in a scene. Salient regions attract our immediate attention without requiring an exhaustive scan of a scene. In essence, saliency can be defined as the quality of an image region that enables it to stand out in relation to its neighbors. Saliency is often approached in either one of two ways. The bottom-up saliency approach refers to mechanisms which are image-driven and independent of the knowledge in an image, whereas the top-down saliency approach refers to mechanisms which are task-oriented and make use of the prior knowledge about a scene. In this thesis, we present a bottom-up measure of saliency based on the relationships exhibited among image features. The perceived structure in an image is determined more by the relationships among features rather than the individual feature attributes. From this standpoint, we aim to capture the organization within an image by employing relational distributions derived from distance and gradient direction relationships exhibited between image primitives. The Rényi entropy of the relational distribution tends to be lower if saliency is exhibited for some image region in the local pixel neighborhood over which the distribution is defined. This notion forms the foundation of our measure. Correspondingly, results of our measure are presented in the form of a saliency map, highlighting salient image regions. We show results on a variety of real images from various datasets. We evaluate the performance of our measure in relation to a dominant saliency model and obtain comparable results. We also investigate the biological plausibility of our method by comparing our results to those captured by human fixation maps. In an effort to derive meaningful information from an image, we investigate the significance of scale relative to our saliency measure, and attempt to determine optimal scales for image analysis. In addition to this, we extend a perceptual grouping framework by using our measure as an optimization criterion for determining the organizational strength of edge groupings. As a result, the use of ground truth images is circumvented.

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