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Strategická analýza podniku / Strategic Analysis of an EnterpriseMeister, Vladimír January 2011 (has links)
Analysis of the company using internal and external analysis, integrated management model. Description of the competitive environment, market size and existing marketing activities. Outline the trends and developments in the industrial sector. Result of this work is optimize the financial issues, analysis of the internal state of the company and the possibility of change, proposal of company strategy.
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Är det på riktigt, så blir det viktigt : Undervisningsdesign för relevans i teknikkurs för årskurs 7, och elevernas respons på resultatetBerggren, Karin January 2020 (has links)
Våren 2020 genomförde pedagoger från 2047 Science Center (2047) undervisning i teknik i grundskolor i Falu Kommun. Ämnet för insatsen var automatisering, programmering och dess påverkan på individ och samhälle och riktades till elever i årskurs 7. Utöver de mål som följer av skolans styrdokument fanns en strävan att eleverna skulle uppleva undervisningen som relevant. Syftet med denna studie var att undersöka hur 2047 Science Center arbetat med målet att göra sin undervisning relevant för eleverna, och vilket resultat det gav. Studien undersöker elevernas perspektiv på relevans, att undervisningen upplevs som viktig för dem i förhållande till deras intressen eller mål. Viktig blir den, enligt Self-determination Theory, om den bidrar till vårt behov av att uppleva kompetens, autonomi och tillhörighet. Styrkan i vår motivation beror sedan på hur högt vi värderar detta viktiga, och vår förväntan att nå det, enligt Expectancy-Value Theory. För att undersöka undervisningens design för relevans analyserades undervisningen utifrån ARCS-modellen för utformning av undervisning för motivation till lärande (Keller, 2010). Elevernas respons på undervisningen undersöktes sedan med en enkät i sex klasser på tre skolor i kommunen. Resultatet visade att samtliga av Kellers tre koncept för relevans i undervisning; målorientering, matcha motiv och förtrogenhet, beaktas vid utformningen av kursen. De användes också vid ett flertal tillfällen och på olika sätt. Elevernas respons på kursen visade sig vara övervägande positiv. På de fyra påståendena om upplevelsen av undervisningens relevans svarade mellan 55 och 75% av eleverna att det stämde ganska bra eller bra. Innehållets generella nytta, rankades högre än det egna intresset. Denna studie har visat att man kan utforma undervisning så att den ökar elevernas upplevelse av relevans. Tidigare forskning, och studiens resultat, antyder dock att stoffets relevans är en nödvändig, men inte tillräcklig, förutsättning för elevernas upplevelse av relevans. Läraren måste först få elevernas uppmärksamhet, och klassens sociala norm behöver tillåta deras engagemang och lärande. / <p>Teknik</p>
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Vers une intégration des comportements communautaires dans les réseaux mobiles / Towards social behaviors integration in mobile networksHarfouche, Leïla 27 September 2011 (has links)
À l'aire du Multimedia Mobile, l'essor des réseaux sans fil est fulgurant et la mobilité est devenue un sujet primordial exacerbé par l'augmentation significative du nombre d'usagers mobiles. Un nœud évoluant dans un réseau mobile de base se comporte de la même manière qu'un aveugle évoluant dans notre univers en en élaborant sa propre représentation à l'aide de son bâton, mécanisme dénommé dans la littérature : mobilité terminale. Pour réduire cet aveuglement, plusieurs méthodes ont été élaborées qui prennent appui sur les services de localisation ou les modèles de mobilité. Un modèle de mobilité est donc destiné à décrire en termes d'environnement, le mode de circulation des nœuds mobiles avec pour défi de trouver des modèles fidèles aux comportements des utilisateurs. Les modèles aléatoires sont biaisés car les appareils mobiles sont portés par des êtres sociaux. Cela nous a amené à inclure des éléments sociaux dans notre modélisation.Nous présentons les modèles de mobilité existants et les classifions. Nous définissons nos modèles, les implémentons et mesurons leur impact sur le test des réseaux. Enfin nous élargissons notre spectre en montrant comment le fait d'octroyer la perception de regroupement social à un protocole de routage réseau, peut en améliorer les performances. / In our area of Mobile Multimedia, the expansion of wireless networks is dazzling and mobility has become a major issue exacerbated by the significant increase in the number of mobile users.A node operating in a basic mobile network behaves the same way a blind person moving in our universe by developing its own representation with his stick, a mechanism known in the literature as terminal mobility. To reduce this blindness, several methods have been developed that are based on location services and mobility models.A mobility model is then intended to describe in terms of environment, the motion criteria of mobile nodes with the challenge to find models faithful to user behavior.Random models are biased because mobile devices are supported by social beings. This led us to include social elements in our models.We present the existing mobility models and classify them.We define our models, implement them and measure their impact on the network testing.Finally we expand our spectrum by showing that granting social grouping perception to a network routing protocol, can improve its performance.
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Grid connected hybrid renewable energy systems for urban households in Djibouti: An economic evaluationGuelleh, Houssein O., Patel, Rajnikant, Kara-Zaitri, Chakib, Mujtaba, Iqbal M. 02 November 2022 (has links)
Yes / The cost of electricity produced by thermal power plants in Republic of Djibouti is relatively high at about $0.32/
kWh. This is due to its dependence on imported oil coupled with fluctuating oil prices. Consequently, the
customer pays a high electricity bill. However, Djibouti is endowed with indigenous renewable energy resources
such as a good solar irradiance of 5.92 kWh/ m2 day, a potential geothermal energy estimated up to 1000 MW,
and few sites with annual wind speed higher than 6 m/s. The goal of this paper is, therefore, to assess an economic evaluation of different grid connected hybrid renewable energy systems to a residential urban house
located in Tadjourah city (11.7913◦ N, 42.8796◦ E) in the North-Eastern part of Djibouti to reduce the cost of
electricity from the grid. To reach this objective, a powerful software tool called HOMER (Hybrid Optimization
Model for Electric Renewables) has been used to find the optimum hybrid energy system using real wind and
solar irradiation data. The results obtained from this study show that the best economical suited combination of
hybrid renewable energy system is a PV-Wind grid connected system. This study shows also that potentially the
indigenous renewable energy contribution, in Tadjourah, can be as much as 77 % with 47 % of solar and 30% of
Wind energy. The Net Present Cost, the Levelized Cost of Energy, and the operating cost of the optimal HRES are
$337, $0.002/kWh and $1,025/year, respectively. When compared with the average cost of grid-only connection
of $0.32/kWh, the optimal hybrid renewable energy system is more economical and will save 51 % of the cost
that the customer must pay when using only the electricity from the grid.
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Syngas ash deposition for a three row film cooled leading edge turbine vaneSreedhran, Sai Shrinivas 10 August 2010 (has links)
Coal gasification and combustion can introduce contaminants in the solid or molten state depending on the gas clean up procedures used, coal composition and operating conditions. These byproducts when combined with high temperatures and high gas stream velocities can cause Deposition, Erosion, and Corrosion (DEC) of turbine components downstream of the combustor section. The objective of this dissertation is to use computational techniques to investigate the dynamics of ash deposition in a leading edge vane geometry with film cooling.
Large Eddy Simulations (LES) is used to model the flow field of the coolant jet-mainstream interaction and the deposition of syngas ash in the leading edge region of a turbine vane is modeled using a Lagrangian framework. The three row leading edge vane geometry is modeled as a symmetric semi-cylinder with a flat afterbody. One row of coolant holes is located along the stagnation line and the other two rows of coolant holes are located at ±21.3° from the stagnation line. The coolant is injected at 45° to the vane surface with 90° compound angle injection. The coolant to mainstream density ratio is set to unity and the freestream Reynolds number based on leading edge diameter is 32000. Coolant to mainstream blowing ratios (B.R.) of 0.5, 1.0, 1.5, and 2.0 are investigated.
It is found that the stagnation cooling jets penetrate much further into the mainstream, both in the normal and lateral directions, than the off-stagnation jets for all blowing ratios. Jet dilution is characterized by turbulent diffusion and entrainment. The strength of both mechanisms increases with blowing ratio. The adiabatic effectiveness in the stagnation region initially increases with blowing ratio but then generally decreases as the blowing ratio increases further. Immediately downstream of off-stagnation injection, the adiabatic effectiveness is highest at B.R.=0.5. However, in spite of the larger jet penetration and dilution at higher blowing ratios, the larger mass of coolant injected increases the effectiveness with blowing ratio further downstream of injection location.
A novel deposition model which integrates different sources of published experimental data to form a holistic numerical model is developed to predict ash deposition. The deposition model computes the ash sticking probabilities as a function of particle temperature and ash composition. This deposition model is validated with available experimental results on a flat plate inclined at 45°. Subsequently, this model was then used to study ash deposition in a leading edge vane geometry with film cooling for coolant to mainstream blowing ratios of 0.5, 1.0, 1.5 and 2.0. Ash particle sizes of 5, 7, 10μm are considered. Under the conditions of the current simulations, ash particles have Stokes numbers less than unity of O(1) and hence are strongly affected by the flow and thermal fields generated by the coolant interaction with the main-stream. Because of this, the stagnation coolant jets are successful in pushing and/or cooling the particles away from the surface and minimizing deposition and erosion in the stagnation region. Capture efficiency for eight different ash compositions are investigated. Among all the ash samples, ND ash sample shows the highest capture efficiency due to its low softening temperature. A trend that is common to all particle sizes is that the percentage capture efficiency is least for blowing ratio of 1.5 as the coolant is successful in pushing the particles away from the surface. However, further increasing the blowing ratio to 2.0, the percentage capture efficiency increases as more number of particles are transported to the surface by strong mainstream entrainment by the coolant jets. / Ph. D.
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Nurses' communication with mechanically ventilated patients in the intensive care unitsDithole, Kefalotse Sylvia 21 November 2014 (has links)
Critically ill patients experience overwhelming communication problems; caused by
intubation and cognitive, sensory or language deficits that distance the patients from
communicating their needs and wants from nurses and loved ones. The purpose of this
study was to explore communication patterns and strategies with the aim of
implementing intervention strategies for nurse/patient communication in the intensive
care units. The American Association of Critical Care Nurses’ Synergy Model for Patient
Care was used to guide the study. A mixed method approach using quasi-experimental
design combining quantitative and qualitative data collections and analysis was used.
Concurrent data collection for quantitative and qualitative data was used. Auditing of
patient’s files, protocols, family counselling conference and in-service books and a
survey for nurses was used for quantitative data. Qualitative data collection was through
interviewing nurses and nurse managers.
Lack of documentation and use of other communication strategies were the key findings
of the study. In accordance with the model used for the study clinical judgment and
moral distress were found to be common among nurses. Lack of collaboration between
nurses and other health care workers was also attributed to poor communication with
mechanically ventilated patients. Conclusions derived from the study are that nurses
need to be supported through informal and formal training on documentation and use of
communication methods available / Health Studies / D. Litt. et Phil. (Health Studies)
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Die gemeenteboumodel van Kenon L Callahan : die prakties- teologiese implikasie vir die gemeenskap van gelowiges in die Nederduitsch Hervormde Kerk van AfrikaMeyer, Lukas Johannes. 11 1900 (has links)
Text in Afrikaans / Talle Christelike kerke in Suid- Afrika, onder meer die Nederduitsch Hervormde Kerk van Afrika, verkeer tans in 'n krisis. Die lidmaattalle toon 'n drasties dalende tendens, minder kinders word gedoop en minder Iidmate le belydenis van geloof af Hierdie krisis, asook die invloed van die postmodernisme op die hedendaagse mens, word aan die hand van die handelingswetenskaplike benadering ondersoek. Die gemeenteboumodel van Kenon L Callahan word gebruik, en daar word gevra tot watter mate
hierdie model op die Nederduitsch Hervormde Kerk van Afrika toegepas kan word. Wat sal die prakties- teologiese implikasies daarvan op die gemeenskap van gelowiges in die Nederduitsch Hervormde Kerk van Afrika wees?
Die resultaat van die studie is dat die Nederduitsch Hervormde Kerk van Afrika wel met vrug gebruik kan maak van Callahan se model, met inagneming van die kerk se bestaande struktuur, tradisie en geskiedenis.
In die toepassing van die model sal daar nuwe, ongekende eise aan die kerk gestel word. / Numerous christian churches in South Africa, including the Dutch Reformed Church of Africa is currently experiencing a crisis. Membership is declining, less children are baptised While new and unknown demands will be made on the church, new and exciting opportunities will also be met each year, and less members are confirmed.
This crisis, together with the influence of the post- modernism, is explored using an operational science approach, and a possible solution to this problem is sought. The church growth model ofK.L. Callahan is used to facilitate this research. The applicability of this model to the Dutch Reformed Church of Africa is explored, together with the practical
theological implications thereof on the holy community.
The result of the study is that the Dutch Reformed Church of Africa can apply Callahan' s model to great affect, while cognisance should be taken of the church's own structure, tradition and history. / Practical Theology / Th. M. (Practical Theology)
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Race to the Top-Early Learning Challenge: An Analysis of Impact on IDEIA, Part C Early Intervention ProgramsBohjanen, Sharon Lynn January 2016 (has links)
Infants and toddlers who live in poverty are more likely to experience developmental delays or disabilities and less likely to access early intervention (EI) services. The federal initiative Race to the Top-Early Learning Challenge (RTT-ELC) was designed to increase access to high quality early learning programs for children at risk for developmental delays due to poverty or disability. Although IDEA, Part C programs were not specifically targeted by this initiative, policies associated with RTT-ELC may have an indirect impact on state EI programs. The purpose of this study was to examine the effects of RTT-ELC on Part C programs by comparing states that received federal grants to states that did not. This study used a social justice framework to identify variables that inform equitable access to high quality Part C programs. Data were extracted from Part C state profiles and compared across states. Awarded states were more likely to increase enrollment of infants and toddlers in Part C Programs and were more likely to use broad eligibility criteria. These findings indicated that although differences were small they could become more pronounced over time. The need for policy change in Part C programs and federal early learning initiatives to directly target infants, toddlers and families in poverty are highlighted through the results of this study.
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Internationalisation of the media business / Žiniasklaidos verslo internacionalizavimasPasiliauskas, Martynas 24 January 2014 (has links)
The aim of master thesis is to create and adapt for Lithuanian case a theoretical conception that lets mass media companies to internationalize their activities. It is based on the analysis of Lithuanian and foreign authors’ methodological and methodical literature and the results of empirical research. Master thesis consists of the extensive analysis of Lithuanian mass media market, covering internationalization and concentration level, financial situation, problems and trends of the market. Furthermore a study was done to determine potential markets of expansion for Lithuanian mass media companies and a survey, which shows how consumers react to media outlets from different countries. Thesis consists of 8 parts: introduction, internationalization as a key in expansion of mass media business, theoretical study of internationalization process in expanding mass media business, methodology of empirical research, empirical research on the internationalization of mass media companies in the international context, possibilities for mass media companies to go through internationalization process, conclusions, references. Thesis consists of: 81 p. text without appendixes, 11 tables, 11 pictures and 64 bibliographical entries. Appendixes included. / Magistrinio darbo tikslas - sukurti ir pritaikyti Lietuvos atvejui teorinę koncpeciją, kuri leidžia žiniasklaidos bendrovei internacionalizuoti savo veiklą. Koncepcija yra paremta lietuvių ir užsienio autorių metodologinės ir metodinės medžiagos analize bei atliktų empirinių tyrimų duomenimis. Darbe buvo atlikta išsami Lietuvos žiniasklaidos rinkos analizė, apimanti internacionalizacijos ir koncentracijos lygius, finansinę situaciją, rinkos problemas ir tendencijas. Taip pat buvo atlikta studija, siekiant nustatyti potencialas rinkas plėtrai Lietuvos bendrovėms bei apklausa, kuri parodo, kaip skirtingai vartotojai reaguoja į žiniasklaidos bendrovės kapitalo kilmę. Darbą sudaro 8 dalys: įvadas, internacionalizacija kaip esminė grandis žiniasklaidos verslo plėtrai, teorinė internacionalizacijos procesų plečiant žiniasklaidos verslą studija, empirinių tyrimų metodologija, žiniasklaidos verslo internacionalizacijos tarptautiniame kontekste empiriniai tyrimai, žiniasklaidos verslo galimybės įgyvendinti internacionalizaciją, išvados, naudoti informacijos pasiūlymai. Darbo apimtis: 81 psl. teksto be priedų, įskaitant 11 lentelių ir 11 paveikslų, 64 informacijos šaltiniai. Atskirai pridedami darbo priedai.
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Commercial property : a required rate of return investigation / Gerrit KotzeKotze, Gerrit January 2005 (has links)
When faced with an investment opportunity in commercial real estate, the investor
requires knowledge of the discount rate since it can be used to convert expected future
cash flows from the property in today's terms and in doing so, place a value on the
property. The so-called required rate of return would be the appropriate conversion rate
since it compensates the investor for risk and, if attainable, will induce the investor to
invest. An inaccurate assessment of the discount rate could, depending on the direction
of the error, lead to a potential over or under estimation of the property value.
A number of single or multiple variable frameworks for required return have been
derived by other researchers for the US, UK and EU property markets. Each of the
variables encountered in these frameworks acts as a proxy for some aspect of
systematic risk associated with the investment. However, locally, such models are either
not extensively published or well described and are limited to single explanatory
variables. Some professionals prefer to avoid frameworks and simply divert to
qualitative, gut-feel and experienced based considerations in order to derive at required
return rate.
This dissertation addressed the possible local need for an explanatory framework of
required return on commercial property. The scope of work entailed: (i) a review of the
literature to establish the theoretical determinants of return and (ii) an empirical study to
test a short-list of parameters for Retail, Offices and Industrial sites in Cape Town,
Pretoria, Bloemfontein and Durban, respectively.
Three categories of explanatory variables were identified: (i) Capital market variables
and alternative investment opportunities in the form of stocks on the JSE, (ii) economic
activity indicators and (iii) property market fundamental parameters. The empirical study
entailed a three-phase methodology, which included the following steps: (i) data
sampling and processing, (ii) screening variables through the simple regression and
correlation coefficients and (iii) multiple regression complemented by statistical
significance testing. Between 69% and 98.2 % (alpha=O.1) of the variation in returns
could be explained in terms of the variation by the explanatory variables that passed the
rigorous screening process. The relative good results are likely to be related to the
higher explanatory power of the multi-factor approach. The remaining unexplained
portion of return can potentially be decreased by using larger samples and pursuing
some of the other recommendations for additional research. / Thesis (M.B.A.)--North-West University, Potchefstroom Campus, 2006.
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