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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.
241

Automatic Modulation Classifier - A Blind Feature-Based Tool

Cutno, Patrick 29 November 2016 (has links)
No description available.
242

Development Finance Institutions’ Effect on The Fund Manager’s Investment Decisions : Balancing Financial Performance Goals and Development Impact Objectives

Adolfssson, Alexander, Åström, Marie January 2016 (has links)
Development Finance Institutions (DFIs) have played a crucial role in moving socially responsibility considerations up on the private equity industry’s agenda. DFIs add a development impact criterion to traditional financial performance goals in the investment industry and play a catalytic role by mobilizing other investors. The gap in research regarding DFIs implications and significance in the investment community from a SRI perspective is evident. The development impact objective introduced by the DFIs is examined to understand its effects on fund managers’ decision-making and if it exists a trade-off between this objective and financial performance. An understanding of how DFIs control fund managers to act in accordance to their objective as well as how they determine compensation schemes to incentivize them to pursue high return on investments, is discussed in relation to the agency theory. Furthermore, stakeholder/shareholder consideration is examined in relation to the subject. The aim of this study is to examine how the behavior of fund managers is affected by the involvement of a DFI investor and try to add to the understanding of their significance as institutional investors in developing markets. Previous studies have been more focused on determining the financial performance of socially responsible investments by using very similar quantitative data collection methods. This thesis undertakes an in-depth approach with the purpose to understand the fund manager’s drives as well as how a DFI involvement affects the behavior and decision-making process.   This thesis undertook a qualitative research strategy and semi-structured interviews were used as the tool to understand the fund managers’ personals beliefs and perceptions of how the relationship with DFIs affect them. The selection criteria for the fund managers was that they needed to work in a fund in which a DFIs has invested. We also included DFI investors in order to understand their point of view. The interview was recorded, transcribed and later divided into themes in accordance with the thematic approach, following six steps. Our findings show that Development Finance Institutions plays an important role in emerging markets and affect fund manager behavior to a certain extent. They did not perceive a trade-off between financial performance goals and development impact objectives. We conclude that DFIs increase fund manager focus on ESG/SEE elements in the investment process. DFIs requirements and reporting obligations is used as a tool to ensure that the fund manager act in accordance to DFI objective. The fund managers were neither willing to sacrifice commercial return in favor of development impact. Lastly, the interest among the DFIs and commercial investors is fairly similar, hence reducing the conflict of interest between investors.
243

Multiculturalism and the De-politicization of Blackness in Canada: the case of FLOW 93.5 FM

McKenzie, Kisrene 11 December 2009 (has links)
This thesis presents a case study of Canada’s first Black owned radio station, FLOW 93.5 FM, to demonstrate how official multiculturalism, in its formulation and implementation, negates Canada’s history of slavery and racial inequality. As a response to diversity, multiculturalism shifts the focus away from racial inequality to cultural difference. Consequently, Black self-determination is unauthorized. By investigating FLOW’s radio license applications, programming and advertisements, this thesis reveals just how the vision of a Black focus radio station dissolved in order to fit the practical and ideological framework of multiculturalism so that Blackness could be easily commodified. This thesis concludes that FLOW is not a Black radio station but instead is a multicultural radio station – one that specifically markets a de-politicized Blackness. As a result, multiculturalism poses serious consequences for imagining and engaging with Blackness as a politics that may address the needs of Black communities in Canada.
244

Multiculturalism and the De-politicization of Blackness in Canada: the case of FLOW 93.5 FM

McKenzie, Kisrene 11 December 2009 (has links)
This thesis presents a case study of Canada’s first Black owned radio station, FLOW 93.5 FM, to demonstrate how official multiculturalism, in its formulation and implementation, negates Canada’s history of slavery and racial inequality. As a response to diversity, multiculturalism shifts the focus away from racial inequality to cultural difference. Consequently, Black self-determination is unauthorized. By investigating FLOW’s radio license applications, programming and advertisements, this thesis reveals just how the vision of a Black focus radio station dissolved in order to fit the practical and ideological framework of multiculturalism so that Blackness could be easily commodified. This thesis concludes that FLOW is not a Black radio station but instead is a multicultural radio station – one that specifically markets a de-politicized Blackness. As a result, multiculturalism poses serious consequences for imagining and engaging with Blackness as a politics that may address the needs of Black communities in Canada.
245

Vision Beyond Optics: Standardization, Evaluation and Innovation for Fluorescence Microscopy in Life Sciences

Huisman, Maximiliaan 01 April 2019 (has links)
Fluorescence microscopy is an essential tool in biomedical sciences that allows specific molecules to be visualized in the complex and crowded environment of cells. The continuous introduction of new imaging techniques makes microscopes more powerful and versatile, but there is more than meets the eye. In addition to develop- ing new methods, we can work towards getting the most out of existing data and technologies. By harnessing unused potential, this work aims to increase the richness, reliability, and power of fluorescence microscopy data in three key ways: through standardization, evaluation and innovation. A universal standard makes it easier to assess, compare and analyze imaging data – from the level of a single laboratory to the broader life sciences community. We propose a data-standard for fluorescence microscopy that can increase the confidence in experimental results, facilitate the exchange of data, and maximize compatibility with current and future data analysis techniques. Cutting-edge imaging technologies often rely on sophisticated hardware and multi-layered algorithms for reconstruction and analysis. Consequently, the trustworthiness of new methods can be difficult to assess. To evaluate the reliability and limitations of complex methods, quantitative analyses – such as the one present here for the 3D SPEED method – are paramount. The limited resolution of optical microscopes prevents direct observation of macro- molecules like DNA and RNA. We present a multi-color, achromatic, cryogenic fluorescence microscope that has the potential to produce multi-color images with sub-nanometer precision. This innovation would move fluorescence imaging beyond the limitations of optics and into the world of molecular resolution.
246

Cantilever properties and noise figures in high-resolution non-contact atomic force microscopy

Lübbe, Jannis Ralph Ulrich 03 April 2013 (has links)
Different methods for the determination of cantilever properties in non-contact atomic force microscopy (NC-AFM) are under investigation. A key aspect is the determination of the cantilever stiffness being essential for a quantitative NC-AFM data analysis including the extraction of the tip-surface interaction force and potential. Furthermore, a systematic analysis of the displacement noise in the cantilever oscillation detection is performed with a special focus on the thermally excited cantilever oscillation. The propagation from displacement noise to frequency shift noise is studied under consideration of the frequency response of the PLL demodulator. The effective Q-factor of cantilevers depends on the internal damping of the cantilever as well as external influences like the ambient pressure and the quality of the cantilever fixation. While the Q-factor has a strong dependence on the ambient pressure between vacuum and ambient pressure yielding a decrease by several orders of magnitude, the pressure dependence of the resonance frequency is smaller than 1% for the same pressure range. On the other hand, the resonance frequency highly depends on the mass of the tip at the end of the cantilever making its reliable prediction from known cantilever dimensions difficult. The cantilever stiffness is determined with a high-precision static measurement method and compared to dimensional and dynamic methods. Dimensional methods suffer from the uncertainty of the measured cantilever dimensions and require a precise knowledge its material properties. A dynamic method utilising the measurement of the thermally excited cantilever displacement noise to obtain cantilever properties allows to characterise unknown cantilevers but requires an elaborative measurement equipment for spectral displacement noise analysis. Having the noise propagation in the NC-AFM system fully characterised, a proposed method allows for spring constant determination from the frequency shift noise at the output of the PLL demodulator with equipment already being available in most NC-AFM setups.

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