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1
Yang, Wen. "Some new results on the SU(3) Toda system and Lin-Ni problem." Thesis, University of British Columbia, 2015. http://hdl.handle.net/2429/54075.
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In this thesis, we mainly consider two problems. First, we study the SU(3)
Toda system. Let (M,g) be a compact Riemann surface with volume 1, h₁
and h₂ be a C¹ positive function on M and p1; p2 ∈ ℝ⁺. The SU(3) Toda
system is the following one on the compact surface M
[Formula and equation omitted]
where ∆ is the Beltrami-Laplace operator, αq ≥ 0 for every q ∈ S₁, S₁ ⊂ M,
Bq ≥ 0 for every q ∈ S₂,S₂ ⊂ M and q is the Dirac measure at q ∈ M. We
initiate the program for computing the Leray-Schauder topological degree
of SU(3) Toda system and succeed in obtaining the degree formula for p1 ∈
(0,4π)(4π,8π), p2 ∉ 4πℕ when S₁ = S₂ = 0.
Second, we consider the following nonlinear elliptic Neumann problem
{∆u-μu +uq =0 in Ω,u > 0 in Ω,au/av=0 on aΩ. where q=n+2/n-2, μ > 0 and Ω is a smooth and bounded domain in ℝn. Lin
and Ni (1986) conjectured that for μ small, all solutions are constants. In
the second part of this thesis, we will show that this conjecture is false for
a general domain in n = 4, 6 by constructing a nonconstant solution.Science, Faculty of
Mathematics, Department of
Graduate
2
Quinn, Malcolm Eric. "A new completely integrable system on the symmetric periodic Toda lattice phase space." Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/36637.
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Cobandag, Melike. "Mortgage Systems And The Adaptation Of Mortgage System In Turkey: Analyzing The Housing Loans." Thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12611939/index.pdf.
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An efficient housing finance system has significant importance both in meeting the housing needs of individuals and in reinforcing the development of the construction, finance and other related sectors of an economy. Today, developed countries have advanced housing finance systems in which funds flow from savers to home-buyers by the mortgage markets. On the other hand, despite its recognized economic and social importance, housing finance often remains under-developed in developing countries mainly due to the lack of macroeconomic stability. Turkey, being a developing country, has made an important step towards the development of a mortgage system with the passage of the new Mortgage Law by the Parliament. Accordingly, the purpose of this thesis is to examine the applicability of mortgage system in Turkey. For this purpose, housing finance systems of some developed and developing countries are reviewed, and the housing finance system in Turkey is explained. Further, causality between the total amount of housing loans issued, inflation and nominal interest rates in Turkey is analyzed with the Toda-Yamamoto VAR approach. VAR analysis shows the negative impact of nominal interest rates on the total amount of housing loans issued in Turkey. To sum up, considering its economic and social environment, Turkey has adapted best international experiences, and it is possible for a mortgage system to develop in the country by the new mortgage legislation combined with the lower interest rates as inflation
declines.
4
Jevnikar, Aleks. "Variational aspects of Liouville equations and systems." Doctoral thesis, SISSA, 2015. http://hdl.handle.net/20.500.11767/4847.
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Maeda, Kazuki. "Theory of Discrete and Ultradiscrete Integrable Finite Lattices Associated with Orthogonal Polynomials and Its Applications." 京都大学 (Kyoto University), 2014. http://hdl.handle.net/2433/188859.
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Todt, Benjamin David. "Use of a two color LIDAR system to study atmospheric aerosols." Thesis, Montana State University, 2010. http://etd.lib.montana.edu/etd/2010/todt/TodtB0510.pdf.
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This thesis demonstrates the use of a two color lidar (light detection and ranging) instrument for the purpose of studying atmospheric aerosols. The instrument and the analysis techniques are explained and discussed to provide the necessary back-ground. The calibration is discussed and demonstrated followed by an example of the data analysis. The lidar's combination with a digital camera used to image cloud formations is then discussed and preliminary results are displayed.
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de, lechtenf@itp uni-hannover. "N=(2$|$2) Supersymmetric Toda Lattice Hierarchy in N=(2$|$2) Superspace." J. Nonlinear Math. Phys. 8 (2001) 183-195, 2000. ftp://ftp.esi.ac.at/pub/Preprints/esi913.ps.
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Benson, Stephen Ray. "Modern Digital Chirp Receiver: Theory, Design and System Integration." Wright State University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=wright1450737245.
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Brillon, Laura. "Matrices de Cartan, bases distinguées et systèmes de Toda." Thesis, Toulouse 3, 2017. http://www.theses.fr/2017TOU30077/document.
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Dans cette thèse, nous nous intéressons à plusieurs aspects des systèmes de racines des algèbres de Lie simples. Dans un premier temps, nous étudions les coordonnées des vecteurs propres des matrices de Cartan. Nous commençons par généraliser les travaux de physiciens qui ont montré que les masses des particules dans la théorie des champs de Toda affine sont égales aux coordonnées du vecteur propre de Perron -- Frobenius de la matrice de Cartan. Puis nous adoptons une approche différente, puisque nous utilisons des résultats de la théorie des singularités pour calculer les coordonnées des vecteurs propres de certains systèmes de racines. Dans un deuxième temps, en s'inspirant des idées de Givental, nous introduisons les matrices de Cartan q-déformées et étudions leur spectre et leurs vecteurs propres. Puis, nous proposons une q-déformation des équations de Toda et construisons des 1-solitons solutions en adaptant la méthode de Hirota, d'après les travaux de Hollowood. Enfin, notre intérêt se porte sur un ensemble de transformations agissant sur l'ensemble des bases ordonnées de racines comme le groupe de tresses. En particulier, nous étudions les bases distinguées, qui forment l'une des orbites de cette action, et des matrices que nous leur associonsIn this thesis, our goal is to study various aspects of root systems of simple Lie algebras. In the first part, we study the coordinates of the eigenvectors of the Cartan matrices. We start by generalizing the work of physicists who showed that the particle masses of the affine Toda field theory are equal to the coordinates of the Perron -- Frobenius eigenvector of the Cartan matrix. Then, we adopt another approach. Namely, using the ideas coming from the singularity theory, we compute the coordinates of the eigenvectors of some root systems. In the second part, inspired by Givental's ideas, we introduce q-deformations of Cartan matrices and we study their spectrum and their eigenvectors. Then, we propose a q-deformation of Toda's equations et compute 1-solitons solutions, using the Hirota's method and Hollowood's work. Finally, our interest is focused on a set of transformations which induce an action of the braid group on the set of ordered root basis. In particular, we study an orbit for this action, the set of distinguished basis and some associated matrices
10
Maspero, A. "BIRKHOFF COORDINATES OF INTEGRABLE HAMILTONIAN SYSTEMS IN ASYMPTOTIC REGIMES." Doctoral thesis, Università degli Studi di Milano, 2014. http://hdl.handle.net/2434/246796.
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In this thesis we investigate two examples of infinite dimensional integrable Hamiltonian systems in $1$-space dimension: the Toda chain with periodic boundary conditions and large number of particles, and the Korteweg-de Vries (KdV) equation on $\R$.
In the first part of the thesis we study the Birkhoff coordinates (Cartesian action angle coordinates) of the Toda lattice with periodic boundary condition in the limit where the number $N$ of the particles tends to infinity. We prove that the transformation introducing such coordinates maps analytically a complex ball of radius $R/N^\alpha$
(in discrete Sobolev-analytic norms) into a ball of radius $R'/N^\alpha$ (with $R,R'>0$ independent of $N$) if and only if
$\alpha\geq2$. Then we consider the problem of equipartition of energy in the spirit of Fermi-Pasta-Ulam. We deduce that corresponding to initial data of size $R/N^2$, $0
11
Li, Xinrong. "Super-resolution TOA estimation with diversity techniques for indoor geolocation applications." Link to electronic thesis, 2003. http://www.wpi.edu/Pubs/ETD/Available/etd-0429103-104200.
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Zand, Emad Dolatshahi. "Measurement of TOA using frequency domain techniques for indoor geolocation." Link to electronic thesis, 2003. http://www.wpi.edu/Pubs/ETD/Available/etd-0428103-130325.
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Hatami, Ahmad. "Application of channel modeling for indoor localization using TOA and RSS." Link to electronic thesis, 2006. http://www.wpi.edu/Pubs/ETD/Available/etd-053106-160141/.
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Nagarajan, Badrinath. "A numerical study of the 15 December 1992 TOGA COARE mesoscale convective system." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0032/NQ64626.pdf.
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Shuman, John H. "Conceptual design analysis of switched multimegabit data service as a telecommunications strategy for USA Today newspaper." Master's thesis, This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-12232009-020128/.
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Wood, Sylvia Louise Rebecca. "Tadpole - sediment interactions of the western toad, Bufo boreas, in a temperate-lentic system." Thesis, University of British Columbia, 2007. http://hdl.handle.net/2429/32200.
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Sediment and nutrient loading in freshwater systems are leading causes of aquatic habitat degradation in North America. The impacts of fine-sediment and nutrient additions on the growth and survival of Bufo boreas tadpoles and emergent metamorphs was investigated in mesocosm and exclosure experiments. Mesocosm tanks received weekly pulses of fine, organic-rich (8% -9%) sediments to create initial concentrations of 0, 130 and 260 mg/L of sediment and bi-weekly additions of nutrients (N-160 μg/L, P-10 μg/L) in a factorial design. Within mesocosms, tadpole exclosures allowed for quantification of tadpole grazing pressure on periphyton biomass, chlorophyll α and sediment deposition. Tadpoles receiving sediment additions experienced slower growth rates and reduced survival to metamorphosis, though no effects of treatment were detected on metamorphic size or timing. Nutrient additions also lowered survival, but had no impact on other measured parameters. Dissections and gut content analysis revealed that tadpoles ingested sediment in large quantities and scanning electron microscopy showed particles were also found in their gill tissues. Together these results suggest that though organic-rich sediments were readily consumed, tadpoles derived little or no net benefit from these materials. Measures from tiles within the exclosures in the mesocosm experiment demonstrated that tadpoles were able to reduce the standing stocks of periphyton by 35-80% and to clear virtually 100% of all deposited sediment from grazing surfaces. Sediment clearing activities via ingestion acted to restructure the benthic abiotic habitat, but at tadpole densities used in the experiment did not have a beneficial effect on underlying periphyton growth. Under natural conditions, such grazing pressure and sediment removal activities could lead to changes in the algal community and consequent shifts in invertebrate grazers. Together, these results highlight a potential role for Bufo boreas tadpoles as ecosystem engineers in temperate pond habitats.Forestry, Faculty of
Graduate
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Müller, Barbara K. "Multinational trademark registration systems : international trademark registration today and in the future /." Bern : Stämpfli, 2002. http://www.gbv.de/dms/spk/sbb/recht/toc/349360197.pdf.
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Alsindi, Nayef Ali. "Performance of TOA estimation algorithms in different indoor multipath conditions." Link to electronic thesis, 2004. http://www.wpi.edu/Pubs/ETD/Available/etd-0430104-121009/.
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Thesis (M.S.)--Worcester Polytechnic Institute.Keywords: indoor radio propagation; time of arrival estimation; indoor geolocation; super-resolution algorithms. Includes bibliographical references (p. 109-110).
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Lazar, Ashley T. "Group A Colicin Specific Residues in Domain III of the Escherichia coli TolA Protein." Bowling Green State University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1404315005.
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Raud, Westberg Amanda. "Exploring Swedish Oat (Avena sativa) Genetic History - from AD 1440 to today." Thesis, Uppsala universitet, Institutionen för biologisk grundutbildning, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-451693.
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Oats (Avena sativa) have been one of the most important cereals in Swedish crop history, completely dominating domestic cereal production in the 19th and early 20th centuries. During this time, oats were mainly used as horse feed and since then, production has decreased with decreased use of horses. Oats have recently been rediscovered as a source of plant-based protein with several health benefits, and due to the low environmental requirements and effectiveness in cereal crop rotation, oats are yet again increasing in popularity. For future development of oat cultivars, insight into oat genetics and genomic history of oats is required. In this study, 84 archeological oat grains (1440-1766 AD) originating from desiccated and waterlogged sources in southern Sweden were analyzed to understand their genetic history. Next generation sequencing (NGS) of extracted DNA from individual grains revealed that the samples had varying oat alignment success, ranging from 0.01 - 34.38% (average: 9.00%). Through metagenomic analysis, it was concluded that, even though a large part of the acquired reads were bacterial, the endogenous oat content was enough to enable deeper bioinformatic analysis. Through Kompetitive Allele Specific PCR (KASP) genotyping, the genetic and geographic structuring was investigated by comparison with 343 previously genotyped 19th century oat landrace grains. Results showed that ancient landraces share genetic similarity with historical landraces and modern improved cultivars, implying that the with the introduction of improved cultivars, they were incorporated into ancient landraces, possibly to increase local adaptation. The analyses revealed a large within-accession variation in all results. An attempt was made to understand the source of this variation, but no pre-extraction parameters that increase sample success were distinguishable. With this study, it was shown that genotyping, sequencing and bioinformatic analysis of ancient oat samples is possible, and can be used to understand oat genetic history.
21
South, Timothy E. "Cross-talk between the TonB and TolA Energy Transduction Systems in Escherichia coli." Bowling Green State University / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1249593545.
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Reza, Rahman Iftekhar. "Data Fusion For Improved TOA/TDOA Position Determination in Wireless Systems." Thesis, Virginia Tech, 2000. http://hdl.handle.net/10919/34723.
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The Federal Communications Commission (FCC) that regulates all wireless communication service providers has issued modified regulations that all service providers must select a method for providing position location (PL) information of a user, requesting for E-911 service, by October 2000. The wireless 911 rules adopted by the FCC are aimed both for improving the reliability of the wireless 911 services and for providing the enhanced features generally available for wireline calls. From the service providers' perspective, effective position location technologies must be utilized to meet the FCC rules. The Time-of-Arrival (TOA) and the Time-Difference-of-Arrival (TDOA) methods are the technology that can provide accurate PL information without necessitating excessive hardware or software changes to the existing cellular/PCS infrastructure.
The TOA method works well when the mobile station (MS) is located close to the controlling base station. With certain corrections applied, the TOA method can perform reliably even in the presence of Non-Line-of-Sight (NLOS) condition. The TDOA method performs better when the MS is located at a significant distance from the controlling base station. However, under the NLOS environmental condition, the performance of the TDOA method degenerates significantly. The fusion of TOA and the TDOA method exhibits certain advantages that are not evident when only one of the methods is applied.
This thesis investigates the performance of data fusion techniques for a PL system, that are able to merge independent estimates obtained from TOA and TDOA measurements. A channel model is formulated for evaluating PL techniques within a NLOS cellular environment. It is shown that NLOS propagation can introduce a bias into TDOA measurements. A correction method is proposed for removing this bias and new corrected data fusion techniques are compared with previous techniques using simulation method, yielding favorable results.Master of Science
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Daffron, Isaac. "Multipath Mitigation and TOA Estimation for LTE-Sidelink Positioning." University of Cincinnati / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1554373681577364.
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Pratt, Steven. "The development of the TOGA sensor for the study of biological wastewater treatment systems /." [St. Lucia, Qld.], 2003. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe17251.pdf.
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Brinkman, Kerry K. "USING CHIMERAS TO EVALUATE CROSS-TALK, ENERGY TRANSFER, AND PROTEIN-PROTEIN INTERACTIONS IN THE TONB AND TOLA SYSTEMS." Bowling Green State University / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1178231612.
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Davis, C. A. "The population dynamics of the Natterjack Toad (Bufo calamita Laur.) in the north Merseyside sand-dune system." Thesis, Liverpool John Moores University, 1985. http://researchonline.ljmu.ac.uk/5561/.
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Santos, Augusto Cesar dos. "Restabelecimento de energia considerando todas as barras e chaves de um sistema de distribuição real." Universidade de São Paulo, 2004. http://www.teses.usp.br/teses/disponiveis/18/18133/tde-27102006-173835/.
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O presente trabalho investiga metodologias para se obter automaticamente planos de restabelecimento de energia em sistemas de distribuição de energia elétrica, contemplando-se múltiplos objetivos, sendo alguns conflitantes. A redução nos índices de interrupção de energia elétrica deve ser um alvo permanente das empresas de distribuição buscando a melhoria da qualidade de fornecimento. Por outro lado, as interrupções são inevitáveis, quer para a execução de obras de manutenção preventiva, quer para obras de manutenção corretiva em virtude da ocorrência de um defeito no sistema. Depois de uma falta ter sido identificada e isolada, um plano de restabelecimento deve ser encontrado em um curto período de tempo. Devido ao problema de explosão combinatorial, técnicas de programação matemática se tornam proibitivas para esse tipo de aplicação, principalmente em sistemas de tamanho real. Por outro lado, a proposta desenvolvida de algoritmos evolucionários utilizando cadeias de grafos, têm se mostrado capaz de obter planos de restabelecimento de energia em um sistema de tamanho real no menor tempo possível. Este trabalho investiga a utilização desta metodologia para redes de grande porte sem simplificações, isto é, incluindo todas as linhas, barras e chaves do sistema. Testes são realizados em três redes de tamanhos diferentes, considerando diversos objetivos a fim de avaliar a técnica proposta.This work investigates methodologies to automatically obtain energy restoration plans in distribution systems, involving multiple objectives that are conflicting. The reduction energy interruption indices is a permanent objective of the distribution companies in order to improve power supply. Interruptions may be carried out for maintenance or may occur due to system faults. After a fault have been identified and isolated, a restoration plan is required in a short interval of time. Due to the combinatorial explosion problem it is not possible to apply mathematical programming techniques to produce restoration plans for large networks. On the other hand, an evolutionary algorithm utilizing graph, chain has shown to be able to obtain restoration plans for real-size networks in a short interval of time. Tests are performed for three different size networks, considering several objectives to evaluate the proposed technique.
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Mancini, Gabriele. "Sharp Inequalities and Blow-up Analysis for Singular Moser-Trudinger Embeddings." Doctoral thesis, SISSA, 2015. http://hdl.handle.net/20.500.11767/4861.
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We investigate existence of solutions for a singular Liouville equation on S^2 and prove sharp Onofri-type inequalities for a Moser-Trudinger functional in the presence of singular potentials. As a consequence we obtain existence of extremal functions for the Moser-Trudinger embedding on compact surfaces with conical singularities. Finally we study the blow-up behavior for sequences of solutions Liouville-type systems and prove a compactness condition which plays an important role in the variational analysis of Toda systems.
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Harper, Todd Martin. "Online Survey System for Image-Based Clinical Guideline Studies Using the Delphi Method." BYU ScholarsArchive, 2013. https://scholarsarchive.byu.edu/etd/3476.
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The increasing use of health information technology (HIT) is due to a rising interest in improving the quality of health care. HIT has the potential to reduce cost and transform services. Proper clinical support systems will contribute to the meaningful use of HIT systems by providing a wide array of data to clinicians for the diagnosis and treatments. Clinical guidelines, created by a consensus of experts, can be put in place to assist physicians in making clinical decisions. Delphi methods are commonly used to create consensus from surveys completed by a team of experts. Image-based studies could create guidelines that standardize severity, deformity or other clinical classifications. As these studies were traditionally conducted using paper-based media, the cost and time requirement often make the process impractical. Using state of the art Web 2.0 technologies, a web-based system can aid medical researchers in conducting image-based Delphi studies for improved clinical guidelines and decision support.
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Heidari, Mohammad. "Identification and modeling of the dynamic behavior of the direct path component in ToA-based indoor localization systems." Worcester, Mass. : Worcester Polytechnic Institute, 2008. http://www.wpi.edu/Pubs/ETD/Available/etd-071508-195549/.
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Dissertation (Ph.D.)--Worcester Polytechnic Institute.Keywords: Ray Tracing; Wideband Measurement; Dynamic Modeling of Ranging Error; ToA-Based Indoor Localization; NLoS Identification. Includes bibliographical references (leaves 147-159).
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AlKhatib, Hala. "E-government systems success and user acceptance in developing countries : the role of perceived support quality." Thesis, Brunel University, 2013. http://bura.brunel.ac.uk/handle/2438/7471.
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Electronic government (e-Government) projects create numerous benefits and opportunities for both governments and citizens worldwide. Accordingly, the increasing interest in e-Government raises the issue of how governments can increase citizen adoption and usage of their on-line services. The successful adoption of Information Communication Technologies (ICTs), the explosive increase in Internet usage and the rapid development of e-commerce in private sectors have placed pressure on public organisations to interact electronically with citizens. Conversely, the success of e-Government does not depend only on the supplier side, but also on the demand side and the willingness to adopt the on-line service. The concept of e-Government was developed and implemented initially in industrialised countries. Consequently, it should not be assumed that this concept is automatically appropriate for developing countries. Thus far, e-Government still faces major challenges as it continues to expand in developing countries. Moreover, when introducing e-Government to developing nations, it is anticipated that more effort will be necessary than in developed countries. The objective of various e-Government initiatives has moved in the past decade towards establishing services offering greater accessibility for citizens. As a result, it is necessary to examine all possible factors to explain citizens' adoption and usage of such systems. Hence, numerous models of e-Government adoption and intention to use and their extensions have been proposed and applied to empirical studies. Obviously, e-Government has occurred due to the technological revolution following the diffusion of the Internet and the success of information systems (IS) in organisations and e-Commerce. However, regardless of their success within the general IS context, the models are limited in terms of considering the diversity of users; they tend to assume that all end-users are homogeneous. The end-users of e-Government systems are more diverse than e-Commerce, with comparisons of wider layers of user groups (for example, elderly and less well-educated people) who are more likely to encounter problems while interacting with e-Government systems. IS literature confirmed that users’ technical capabilities and management support are influenced by their technical knowledge and expertise. Therefore, this research argues that perceived support quality is a new way of looking at citizens’ adoption and usage in the e-Government system’s field and a major factor of e-Government system’s acceptance, particularly in developing countries. This study is the first to examine the roles of perceived support quality and support satisfaction in the context of government-to-citizen (G2C), and it aims to advance knowledge within the field of e-Government by revealing the roles of perceived support quality and satisfaction towards behaviour intention and usage in developing countries. The proposed model builds upon Wixom and Todd’s (2005) theoretical model, which, in turn, was based on the integration of DeLone and McLean model (1992) into the technology acceptance model (TAM). The strength of the integrated model lies in its ability to guide both IT design and predict usage behaviours towards the system under investigation, and assume the overall theoretical model to maintain validity in G2C settings. Thirteen hypotheses were formulated to test the proposed research model. Behaviour intention to use e-Government services was proposed as the dependent variable, while the independent variables were information quality; information satisfaction; system quality; system satisfaction; social influence; performance expectancy; effort expectancy; perceived support quality and support satisfaction. A quantitative approach was deemed best suited to test the proposed model. Using a survey method (i.e. paper-based and an on-line survey), a total of 1252 responses was collected; however, only 628 were analysed. To test the proposed e-Government model, the state of Kuwait was chosen as the application area and the official website of Kuwait Government On-line Services (KGOS) was selected, since it offers a number of services on-line. Elements were citizens who have had prior experience with the KGOS website, and the survey was conducted from 5th August to 10th October 2010. Structural equation modelling (SEM) was selected as the statistical analysis technique with the Analysis of Moment Structures (AMOS) software. A total of 40 percent of the variance among the factors of support satisfaction, system satisfaction, information quality, effort expectancy and performance expectancy was explained by behavioural intention to use an e-Government system. All hypotheses were supported except for one. The findings confirm the significance to the support quality perceived by citizens, and also provide insights into whether user satisfaction literature and TAMs should be integrated to explain citizens’ intention to use e-Government systems. Thus, in terms of the theoretical implications, this study highlights the significance of recognising theoretical relationships when performing empirical research in e-Government settings. Consequently, to capture both the technical aspects and the services provided on-line, a new variable was introduced and renamed ‘perceived support quality’. Additionally, the model offers managers a new perspective for dealing with e-Government adoption by signifying the importance of support quality perceived by citizens. The proposed model provides government decision-makers in developing countries with an appropriate approach to determining which factors require attention in order to reap the highest benefits from e-Governments’ projects. This suggests paying less attention to the social influence (SI) factor and consider instead improving the quality of on-line support citizens demand.
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Mahlaula, Farmanda Samuel. "The teaching of Biblical studies in private Christian schools in South Africa today / F.S. Mahlaula." Thesis, North-West University, 2004. http://hdl.handle.net/10394/285.
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The aim of this study was to investigate the effectiveness of the teaching practice in
grade 12 Biblical Studies in private Christian schools in the Limpopo Province in South
Africa during 2003, with the specific objective to make recommendations towards
possible improvements. Although but a few private Christian schools in the Limpopo
Province participated in the study, while the title implies that all the South African schools
were involved, the findings are assumed to be a cross section of the general situation of
grade 12 Biblical Studies teaching in South Africa, as teaching is more or less subjected
to similar conditions in all the Provinces.
This study consists of a theoretical section wherein literature regarding the variables of
the study are discussed, as well as an empirical section wherein the results of the
research are reported and interpreted with the aim of reaching certain conclusions
regarding the typical profile of Biblical Studies teaching practice in the Limpopo Province.
The theoretical basis is grounded in the didactical foundations of teaching as discussed
in Chapter 2. This is followed by the empirical study (described in Chapter 3) grounded
in the results obtained from classroom observations, questionnaires, interviews and the
November 1996-2002 Biblical Studies grade 12 final examination of the four participating
schools. Chapters 4 and 5 respectively evaluate and consolidate the findings from the
classroom observations, the responses from the interviews and questionnaires, and the
November 1996-2002 grade 12 Biblical Studies examination results.
The main thesis on which this study rests is that the teaching practice of grade 12
Biblical Studies in private Christian schools during 2003 was unsatisfactory because of,
inter alia, lack of work ethics, negative attitudes of both teachers and learners, lack of or
insufficient application of didactical principles, teaching methods and teaching aids, low
morale and insufficient or improper training of Biblical Studies teachers.
The study revealed that the teaching of grade 12 Biblical Studies in private Christian
schools during 2003 was indeed unsatisfactory because of lack of work ethics, negative
attitude of both teachers and learners, lack of and insufficient application of didactical
principles and a variety of teaching methods, low morale and improper training of some
Biblical Studies teachers. The most aggravating factor was that teachers often did not
even show up for Biblical Studies classes.
Conclusively, it is therefore recommended that heads of departments and principals
regularly monitor and evaluate the quality and quantity of Biblical Studies teaching in
schools. The inspectors of schools may also support these forms of control by more
regular inspection of schools, and more specifically, of the Biblical Studies classroom.
Incentives and recognition of performance by both teachers and learners in the Biblical
Studies classroom may be incorporated into these recommendations.Thesis (M.A.)--North-West University, Potchefstroom Campus, 2004.
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Decker, Sandra Kay. "Comparing the managerial and administrative benefits of the construction project management information system (CPMIS) to the E-Government environment of today." CSUSB ScholarWorks, 2003. https://scholarworks.lib.csusb.edu/etd-project/2298.
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The purpose of the project is to compare the managerial and administrative benefits of the Construction Project Management Information System (CPMIS) implemented at the San Bernardino County Medical Center Replacement Project (SBCMCRP) with the E-Government environment.
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Budd, David A. "Characterising volcanic magma plumbing systems : A tool to improve eruption forecasting at hazardous volcanoes." Doctoral thesis, Uppsala universitet, Mineralogi, petrologi och tektonik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-267473.
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This thesis attempts to develop our understanding of volcanic magma plumbing systems and the magmatic processes that operate within them, such as fractional crystallisation, crustal partial melting, assimilation, and magma mixing. I utilise petrology, rock and mineral geochemistry, and isotope systematics to seek to improve our ability to forecast the eruptive frequency and style of active volcanoes, an aspect often lacking in current volcano monitoring efforts. In particular, magma reservoir dynamics are investigated from a mineral scale at Katla volcano in Iceland, to a sub-mineral scale at Merapi, Kelud, and Toba volcanoes in Indonesia. The magma plumbing architecture of Katla volcano on Iceland is explored in the first part of this thesis. Crystalline components within tephra and volcanic rock preserve a record of the physical and chemical evolution of a magma, and are analysed through oxygen isotopic and thermobarometric techniques to temporally constrain changes in reservoir depth and decode the petrogenesis of the lavas. We find both prolonged upper crustal magma storage and shallow level assimilation to be occurring at Katla. The results generated from combining these analytical strands reveal the potential for unpredictable explosive volcanism at this lively Icelandic volcano. The second part of this thesis examines the magma plumbing systems of Merapi, Kelud and Toba volcanoes of the Sunda arc in Indonesia at higher temporal and petrological resolution than possible for Katla (e.g., due to the crystal poor character of the rocks). For this part of the thesis, minerals were analysed in-situ to take advantage of sub-crystal scale isotopic variations in order to investigate processes of shallow-level assimilation in the build-up to particular eruptions. We find that intra-crystal analyses reveal an otherwise hidden differentiation history at these volcanoes, and establish a better understanding as to how they may have rapidly achieved a critical explosive state. The outcomes of this thesis therefore deepen our knowledge of evolutionary trends in magma plumbing system dynamics, and highlight the importance of understanding the geochemical processes that can prime a volcano for eruption. Lastly, I emphasise the vital contribution petrology can make in current volcano monitoring efforts.
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Chandra, Michelle Veena. "The black/white wealth gap : the transgenerational effects of post-reconstruction sharecropping and racial systems on African Americans today." Thesis, University of British Columbia, 2011. http://hdl.handle.net/2429/37153.
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The purpose of this study was to investigate how sharecropping systems, a form of racialized agriculture, instituted in the Post-Reconstruction era has had a profound impact on the inability of many African Americans to generate and pass down wealth to successive generations lending to the sizable gap in wealth between whites and blacks (as well as between blacks) in America today. Another aim was to find out how systematic anti-black racism, particularly during Jim Crow, aided in denying a substantial number of southern blacks from entering into the labour market and engaging in the white American ideal of property ownership by re-asserting a white hegemonic order reminiscent of the antebellum period. Another objective was to trace the effects of the Great Migration (1910-1970), the northward and westward migration of close to 8 million blacks out of the South, that occurred as a result of this systemic racism.
It was found that the late move of black men out of agriculture and into other areas of the labour market, in addition to the persistent racism that upheld sharecropping systems in the South, severely hampered the ability of many African Americans from building and passing down wealth holdings to their children, helping to explain some of the staggering wealth discrepancies that we see today. Furthermore, the results of the study indicated that some blacks, particularly in Durham, North Carolina, benefited by the anti-black racism in the South by creating a black clientele in predominantly black neighbourhoods where whites did not want to set up shop, allowing some blacks entry into the coveted middle class. The effects of the Great Migration did not benefit all, however, in that it also created clusters of blacks in northern urban areas who faced increasing anti-black racism and exclusion from the marketplace, lending to the creation of a lower middle class and an impoverished underclass. The principle conclusion was that in order to understand present day inequalities among African Americans, there must be a historical analysis that is sensitive to the transgenerational effects of sharecropping, Jim Crow and institutionalized racism.
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Gomez, Javier Dario Pulido. "Estimativa de erosão pela Equação Universal de Perda de Solo (USLE) e transferência de sedimentos para todo território Brasileiro." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/11/11140/tde-25102012-150933/.
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O presente trabalho é uma tentativa de validar uma metodologia para estimar a produção de sedimentos para todo território Brasileiro. Foram utilizadas ferramentas de sistemas de informação geográfi ca (GIS), estatística espacial, modelagem e gerenciamento de bancos de dados aplicados a conservação de solos, permitindo combinar a equação Universal de Perda do Solo (USLE) com diferentes modelos de taxa de transferência de sedimentos (SDR). A metodologia utilizou como base de teste dados da rede sedimentométrica brasileira composta de 201 bacias. As estimativas foram analisadas por regressão linear múltipla obtendo valores de R2 de até de 46% entre dados observados e modelados. Observou-se a pouca sensibilidade do modelo USLE em relação ao fator de erosividade (fator R) quando duas observações por métodos diferentes diferem espacialmente em seus valores máximos entre 18000 MJ.mm.ha-1.h-1.ano-1 e 28000 MJ.mm.ha-1.h-1.ano-1 . Por outro lado o modelo mostrou-se sensível ao fator de cobertura do solo (Fator C da USLE) afetando as taxas máximas estimadas de erosão entre 160 Mg.ha-1.ano-1 ate 460 Mg.ha-1.ano-1. Nesse sentido a metodologia sugerida pode ser utilizada para dar indicativos sobre mudanças de uso da terra em escalas regionais e subsidiar tomadas de decisões quanto ao planejamento e gestão territorial.This work is an attempt to validate a methodology for estimating sediment production for the whole Brazilian territory. Tools were used geographic information systems (GIS), spatial statistics, modeling and database management applied to soil conservation, allowing combine the Universal Soil Loss Equation (USLE) with different models of sediment transfer rate (SDR). The methodology used as test data of Brazilian sedimentometric network composed of 201 basins. The estimates were analysed by multiple linear regression getting values of R2 to 46% between observed and modelled data. Noted the low sensitivity of USLE model in relation to the erosivity factor (R factor) when two observations by different methods differ in their maximum values and spatial distribution of 18000 MJ.mm.ha-1.h-1.year-1 and 28000 MJ.mm.ha-1.h-1.year-1. the other aspects the model proved to be sensitive to soil coverage factor (factor C of USLE) affecting the estimated maximum rates of erosion between 160 Mg.ha-1.year-1 up to 460 Mg.ha-1.year-1.
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Breen, Jr Daniel E. "Characterization of Multi-Carrier Locator Performance." Digital WPI, 2004. https://digitalcommons.wpi.edu/etd-theses/563.
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Time-Difference-of-Arrival (TDOA) location estimation is central to an OFDM based Precision Personnel Locator system being developed at WPI. Here we describe a component of the effort towards characterizing the performance of such a system and verifying the functionality of hardware and software implementations. The performance degradations due to noise in the received signal and misalignments between transmitter and receiver clock and heterodyne frequencies are investigated. This investigation involves development of a MATLAB simulator for the entire system, experimental measures using a prototype implementation and linearized analytic analysis of specific subsystems. The three types of characterizations are compared, confirming agreement, and analytic results are used to demonstrate construction of a system engineering design tool.
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Aramayo, Benvenutto Nicolás Andrés. "Implementation of the matching mechanism for the new school admissions system and modeling of the school choice for chilean families." Tesis, Universidad de Chile, 2018. http://repositorio.uchile.cl/handle/2250/168686.
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Tesis para optar al grado de Magíster en Gestión de OperacionesMemoria para optar al título de Ingeniero Civil Industrial
Matching mechanisms for school assignment have been adapted on a global scale since the popular application in New York City in 2004, which used the Deferred Acceptance algorithm to assign thousands of students. Implementation of these systems is not a trivial task because of the large scale of the problem and educational regulations particular to each country. One of the goals of this thesis was to develop the implementation of the matching algorithm for the Chilean case and to show the nuances in the design of this mechanism. Then, taking advantage of the strategy-proofness of this system and the centralized data it produces, this work develops structural models for discrete choice to study families' preferences for schools, speci cally, a Bayesian multivariate ordered probit with a hierarchical Bayesian structure to model heterogeneity in the school choice. A methodology was developed to obtain choice sets for families using unsupervised learning techniques in the Coquimbo region where these structural models could be applied. This way, meta-analysis was conducted to evaluate what characteristics in school choice are consistently signi cant, where results indicate that, for example, while schools with poor academic performance are not preferred on average, schools with superior results on standardized test are only preferred by students with good academic records. The estimation of these preferences allows for a series of counterfactual analyses that can aid in the design and implementation of public policies and support the decision making of schools. A no-pricing policy was simulated for the Coquimbo region---which is actually in the process of being adopted by subsidized private schools in Chile---, where it was found that it would improve the social welfare of the assignment of the region, specially for families with children with disabilities, but would impact negatively students that are not in the lowest socioeconomic family groups.
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Ge, Quanyi, and Yi Chai. "RFID Emergency System for Tumble Detection of Solitary People." Thesis, Blekinge Tekniska Högskola, Sektionen för ingenjörsvetenskap, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-5462.
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RFID (Radio Frequency Identification) system is a wireless system without any kinds of mechanical or optical connection between identifying and detected objects. It consists of two basic devices: a reader and tag. Recently with the development of the technology, SAW-RFID (Surface Acoustic Wave Radio Frequency Identification) tags come into market with acceptable price, as well as its size tends to miniaturization. We propose to use 3D wireless indoor localization system to detect the position of the tags. The reader converts radio waves returned from the SAW-RFID tag into a form, which can be useful to process the information. The system consists of SAW-RFID tags placed on the object and several RF Readers in the room. The readers sequentially transmit the impulse signals which are then reflected from different tags and received by readers. Then a signal round-trip TOA (Time of Arrival) between tags and readers can be estimated. We define a 3D coordinate system of the readers and calculate the positions of the tags using suitable specific algorithm. Our system is design to monitor a human body position. The goal is to detect a tumble of solitary living people. A case when the tag positions are identified to be below a per-set threshold means that something happened, and maybe a man has fallen on the ground. This emergency situation can be detected by the monitoring system which then sends information to an alarm system which can call the health centre to take care of the patient. In this paper, a 5 m×5 m×3 m indoor localization system is implemented in Matlab. The simulation results show a correct identification of a fallen man and accuracy of the high measurement below 30 cm.0762770008
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Bénichou, Léa. "« La más dificultosa y trabajosa de todas las demás » : l’ambassade d’Espagne à Rome sous Philippe III (1598-1621)." Thesis, Montpellier 3, 2016. http://www.theses.fr/2016MON30024/document.
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« La más dificultosa y trabajosa de todas las demás » : l’ambassade d’Espagne à Rome sous Philippe III (1598-1621) Rome, centre spirituel de la chrétienté, capitale diplomatique de l’Europe, était d’une importance cruciale pour la Monarchie Catholique. Cette thèse est consacrée à l’étude de la représentation diplomatique de l’Espagne à Rome durant une période singulière à plusieurs égards. Le règne de Philippe III correspond en effet à un renouveau de la présence française à Rome, capable de rivaliser, après la fin des guerres de religion, avec la puissance espagnole. Le monarque inaugura, en outre, un nouveau type de gouvernement avec l’émergence d’un favori tout puissant, le valido, auquel il consentait à déléguer une grande partie de son pouvoir. Enfin, ce règne est caractérisé par l’instauration d’une période de paix, connue sous le nom de Pax Hispanica, par laquelle Philippe III mit fin aux conflits ouverts que son prédécesseur avait engagés avec l’Angleterre et avec les Pays-Bas, tandis qu’il devait mettre en application la paix de Vervins signée avec la France peu avant son accession au trône. Ce travail s’attache à analyser de quelle façon ces circonstances affectèrent la pratique diplomatique de l’Espagne à Rome et dans quelle mesure le Saint-Siège intervint dans le maintien de la paix en Europe. Il s’agit de pénétrer au cœur même de l’ambassade d’Espagne près le Saint-Siège pour en comprendre, dans un premier temps, le fonctionnement, dans ses aspects institutionnels et matériels. Cette analyse permet d’appréhender la multiplicité des figures de la représentation espagnole à Rome parmi lesquelles se distingue celle, encore mal connue, du cardinal protecteur du royaume de Castille. En s’intéressant à l’activité des six ambassadeurs ordinaires du monarque, ce travail met aussi en évidence leurs réseaux de renseignement et de clientèle et les stratégies déployées par chacun d’entre eux pour faire valoir les intérêts de l’Espagne et consolider la faction espagnole du Sacré Collège. Cette thèse contribue enfin à mettre en lumière l’articulation entre les objectifs internationaux de la monarchie espagnole et ceux du Saint-Siège durant la période singulière de la Pax Hispanica« La más dificultosa y trabajosa de todas las demás »: the Spanish Embassy in Rome in the reign of Philip III of Spain (1598-1621) Rome, spiritual centre of Christianity, modern Europe’s diplomatic capital, was crucial for the Catholic Monarchy. This thesis studies the Spanish diplomatic representation in Rome during this very specific period, in several aspects. The reign of Philip III of Spain matches with a charismatic renewal of the French presence in Rome, its capacity to compete with the Spanish power after the end of Wars of Religion. This reign will indeed usher in a new type of government thanks to the emergence of a powerful favourite, the valido. The monarch will agree to delegate him most of his power. Eventually, this period’s characteristic is the instauration of a peaceful period, known as Pax Hispanica, through which Philip III will end the conflicts its predecessor had opened with England and the Netherlands, whereas he must implement the Peace of Vervins he had signed with France before he sat on the throne. This thesis is focused on the analysis of the impact of such circumstances on the Spanish diplomacy in Rome and explains how the Holy See intervened in maintaining peace in Europe. This thesis accesses the Spanish Embassy close to the Holy See in order to understand how it works, its institutional aspects and materials. This analysis enables to understand the Spanish multiplicity of represented figures in Rome, among which we can distinguish, though very quite unknown, the Cardinal Protector of Castille Kingdom. Focusing on the activity of the six ordinary Ambassadors of the Monarch, this work highlights its information and clientele networks, and the strategies implemented to enforce Spain’s interests and to strengthen the Spanish faction of the College. Eventually, this thesis contributes to highlight the difference between the Spanish and Holy See international intentions during the specific period of Pax Hispanica
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PROTAT, ALAIN. "Processus d'interaction entre les differentes echelles de mouvement au sein du systeme convectif observe le 15 decembre lors de toga-coare." Paris 7, 1996. http://www.theses.fr/1996PA077329.
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L'etude des processus d'interaction entre les differentes echelles de mouvements au sein des systemes convectifs tropicaux constitue un des objectifs majeurs du programme international toga-coare (tropical ocean global atmosphere- coupled ocean atmosphere response experiment). Ce travail de these s'inscrit dans ce cadre, et a ete guide par les objectifs scientifiques suivants : (i) acceder aux differents champs dynamiques et thermodynamiques au sein du systeme convectif selectionne (15 decembre 1992) a grande echelle, mesoechelle, et echelle convective, afin de caracteriser les processus responsables de sa formation, de son evolution et de sa dissipation, (ii) comparer les resultats obtenus aux travaux theoriques, ainsi qu'aux resultats issus d'etudes effectuees par le passe, et (iii) diagnostiquer, pour le cas selectionne, les processus d'interaction entre les differentes echelles de mouvement. Cette etude repose sur l'utilisation de sources de donnees tres variees. Les analyses du cepmmt (centre europeen de prevision meteorologique a moyen terme), et les images du satellite japonais gms-4 sont utilisees pour decrire la grande echelle. Les donnees issues de radars doppler aeroportes sont utilisees pour acceder aux champs a moyenne echelle et echelle convective. Au cours de cette these, un important travail de pretraitement de ces donnees a ete effectue, et de nouvelles methodes d'analyse de ces donnees ont pu etre developpees. Apres s'etre forge les outils necessaires a la realisation des objectifs scientifiques enumeres precedemment, une analyse de l'ensemble des resultats obtenus a pu etre menee, permettant d'interpreter en terme de processus les champs dynamiques et thermodynamiques obtenus aux differentes echelles de mouvement. Il a ete montre entre autres que la formation, l'organisation, et la dissipation du systeme etaient totalement gouvernees par les circulations de grande echelle, et qu'inversement les mouvements convectifs avaient un effet retroactif sur l'environnement de grande echelle.
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Oliveira, Alexandre Gomes de. "Proposta de m?todo para avalia??o do desempenho t?rmico de resid?ncias unifamiliares em clima quente e ?mido." Universidade Federal do Rio Grande do Norte, 2006. http://repositorio.ufrn.br:8080/jspui/handle/123456789/12295.
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Previous issue date: 2006-12-08Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior
Nowadays, evaluation methods to measure thermal performance of buildings have been developed in order to improve thermal comfort in buildings and reduce the use of energy with active cooling and heating systems. However, in developed countries, the criteria used in rating systems to asses the thermal and energy performance of buildings have demonstrated some limitations when applied to naturally ventilated building in tropical climates. The present research has as its main objective to propose a method to evaluate the thermal performance of low-rise residential buildings in warm humid climates, through computational simulation. The method was developed in order to conceive a suitable rating system for the athermal performance assessment of such buildings using as criteria the indoor air temperature and a thermal comfort adaptive model. The research made use of the software VisualDOE 4.1 in two simulations runs of a base case modeled for two basic types of occupancies: living room and bedroom. In the first simulation run, sensitive analyses were made to identify the variables with the higher impact over the cases? thermal performance. Besides that, the results also allowed the formulation of design recommendations to warm humid climates toward an improvement on the thermal performance of residential building in similar situations. The results of the second simulation run was used to identify the named Thermal Performance Spectrum (TPS) of both occupancies types, which reflect the variations on the thermal performance considering the local climate, building typology, chosen construction material and studied occupancies. This analysis generates an index named IDTR Thermal Performance Resultant Index, which was configured as a thermal performance rating system. It correlates the thermal performance with the number of hours that the indoor air temperature was on each of the six thermal comfort bands pre-defined that received weights to measure the discomfort intensity. The use of this rating system showed to be appropriated when used in one of the simulated cases, presenting advantages in relation to other evaluation methods and becoming a tool for the understanding of building thermal behavior
Atualmente, m?todos de avalia??o do desempenho t?rmico e energ?tico de edifica??es t?m sido desenvolvidos com o intuito de otimizar o conforto t?rmico em edifica??es e reduzir o consumo de energia com sistemas de condicionamento ativo. Entretanto, em pa?ses desenvolvidos, os crit?rios utilizados para avaliar o desempenho t?rmico e energ?tico de edifica??es t?m demonstrado limita??es quando aplicados em edifica??es naturalmente ventiladas em climas tropicais. A presente pesquisa teve como principal objetivo propor um m?todo para avalia??o do desempenho t?rmico de edifica??es residenciais unifamiliares no clima quente e ?mido, atrav?s da simula??o computacional. O m?todo foi desenvolvido a fim de gerar um sistema de classifica??o adequado na avalia??o destas edifica??es, usando como crit?rios de an?lise a temperatura interna do ar e um modelo adaptativo de conforto t?rmico. A pesquisa utilizou o aplicativo VisualDOE 4.1 em duas s?ries de simula??es de um caso base, caracterizado por duas ocupa??es t?picas: quarto e sala. Na primeira s?rie foram realizadas an?lises de sensibilidade para identificar as vari?veis de maior impacto sobre o desempenho t?rmico dos casos. Al?m disso, os resultados tamb?m permitiram a elabora??o de recomenda??es de projeto para o clima tropical visando melhorias no desempenho t?rmico de edifica??es residenciais em situa??es semelhantes. Os resultados da segunda s?rie de simula??es foram utilizados para identificar o chamado Espectro de Desempenho T?rmico (EDT) para os dois tipos de ocupa??o, no qual reflete a varia??o de desempenho t?rmico considerando o clima local, tipologia da edifica??o, materiais construtivos escolhidos e ocupa??es analisadas. Essa an?lise serviu de base para o desenvolvimento de um ?ndice nomeado de IDTR - ?ndice de Desempenho T?rmico Resultante, que foi configurado como um sistema de classifica??o de desempenho t?rmico. Esse associa o desempenho t?rmico com o n?mero de horas em que a temperatura interna do ar encontra-se em cada uma das seis faixas de conforto t?rmico pr?-definidas que receberam pesos a fim de ponderar a intensidade de desconforto t?rmico. A aplica??o desse sistema mostrou-se apropriado quando aplicado a um dos casos simulados, apresentando vantagens em rela??o a outros m?todos de avalia??o existentes e se tornou uma ferramenta para o entendimento do comportamento t?rmico de edifica??es
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Kim, Jin. "Determining transit impact on Seoul office rent and land value: an application of spatial econometrics." Texas A&M University, 2004. http://hdl.handle.net/1969.1/1566.
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This study posits that there may be a systematic bias in measuring the transits
endogenous impact on land values in a built up area due to discrimination by location in
the city. Studies of transit value-added effect report mixed results about the capitalization
of station proximity. The question is not whether a transit station influences nearby
land values, but how and where location determines the impacts.
Examining 731 office rentals and land values in Seoul, this study finds that value
premium over better accessibility to a station decays with increasing distance from the
central business district (CBD) and significantly depends on the development density of
the station area. Overall, station benefits seem to exist in Seoul, but they look more
notable in centers with higher centrality. This makes a hierarchy of regression
coefficients for station proximity by location, i.e. the beta in the CBD is the highest and
those in the subcenters are next, while that in other areas is the lowest. Study findings
imply that the potential of more compact and denser developments within station areas
seems higher in a dense inner city, providing evidence for the concept of compact city.
Questions concerning model specification in the hedonic approach are raised: in
research sampled heavily from the suburbs, the coefficient may be underestimated where
this benefit actually exists. Also, due to the incongruence of station area with station
value-added area, using a dummy variable seems intrinsically risky.
This study shows that estimation with spatial models outperforms OLS
estimation in the presence of spatial autocorrelation. Also, there is a strong spatial
autocorrelation even in the SAR residuals where the omission of key variables still
influences the estimation. Overall, spatial lag and error term variables greatly improve
the fitness of regression equations; however, the latter seemed more useful than the
former in this study. One thing to note is that the latter seems more sensitive to the
choice of weight matrix than the lag variable. There may exist a unique weight scheme
proper for the data structure which cannot be known in advance.
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Macha, Bret B. [Verfasser], Holger [Gutachter] Braunschweig, Todd [Gutachter] Marder, and Matthias [Gutachter] Lehmann. "Boron-Containing Aromatics as Communicating and Communicative Units in π-Conjugated Systems / Bret B. Macha ; Gutachter: Holger Braunschweig, Todd Marder, Matthias Lehmann." Würzburg : Universität Würzburg, 2016. http://d-nb.info/1120924987/34.
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Rauch, Florian [Verfasser], and Todd B. [Gutachter] Marder. "1,3-Bis(trifluoromethyl)benzene: A Versatile Building Block for the Synthesis of New Boron-Containing Conjugated Systems / Florian Rauch ; Gutachter: Todd B. Marder." Würzburg : Universität Würzburg, 2020. http://d-nb.info/1217599215/34.
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Oliveira, Wbiratan Cesar Macedo de. "Desenvolvimento de um m?todo para extra??o de lant?nio em lixiviados de baterias NiMH utilizando sistemas aquosos bif?sicos." UFVJM, 2016. http://acervo.ufvjm.edu.br/jspui/handle/1/1160.
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Made available in DSpace on 2017-01-31T14:19:01Z (GMT). No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) wbiratan_cesar_macedo_oliveira_parcial.pdf: 128173 bytes, checksum: 9c9067430cf3b7ef9b7952182484b258 (MD5) Previous issue date: 2016
Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES)
Funda??o de Amparo ? Pesquisa do Estado de Minas Gerais (FAPEMIG)
Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico (CNPq)
Neste trabalho foi estudado o comportamento de extra??o do lant?nio em sistemas aquosos bif?sicos (SAB) e foi desenvolvido um novo m?todo hidrometal?rgico ambientalmente seguro para a extra??o seletiva de La a partir de lixiviado de baterias NiMH. O comportamento de extra??o do La foi avaliado verificando a influ?ncia dos seguintes par?metros: presen?a e concentra??o de diversos agentes extratantes (Alaranjado de xilenol, 1-(2-piridilazo)-2-naftol, Ditizona, 8-hidroxiquinolina, e 1,10-fenantrolina); pH (3,00, 6,00 e 9,00); eletr?lito (Li2SO4, Na2SO4, MgSO4, Na2C4H4O6 e Na3C6H5O7 ) e pol?mero (L64 e PEO1500) formadores do sistema. A efici?ncia de recupera??o foi avaliada atrav?s da an?lise da porcentagem de extra??o (% E) e as melhores condi??es de extra??o do analito foram obtidas no SAB formado por PEO1500 + Li2SO4 + H2O, pH = 6,00; empregando o extratante 1,10-fenantrolina, atingindo um valor m?ximo de %E = 74,1 %. Na sequencia o m?todo foi aplicado a um lixiviado de bateria NiMH. Os terras raras foram precipitados mediante ajuste de pH (2,50) e posteriormente solubilizado em solu??o de H2SO4 0,1 M. Ap?s 3 etapas sucessivas de extra??o foram obtidos altos valores de fator de separa??o (S) entre o analito e os concomitantes met?licos (SLa,Co = 6.3 x 103, SLa,Ni= 2,55 x 104, SLa,Fe= 1,15 x 103 and SLa,Ce= 30,9). Al?m disso, foi realizado um ensaio de stripping no qual 88,5% de La, em uma ?nica etapa, foi redisponibilizado sob a forma i?nica na FI para uma poss?vel etapa posterior de eletrodeposi??o.
Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Qu?mica, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2016.
In this work was investigated the extraction behavior of lanthanum in the aqueous two-phase system (ATPS) and new environmentally safe hydrometallurgical method was developed for the selective extraction of La from NiMH battery leachate. The extraction behavior of La was evaluated verifying the influence of the following parameters on the metals extraction: presence and concentration of the several extractants 1-(2-piridil-azo)-2-naphtol, dithizone, 8-hydroxyquinoline, 1-10 phenanthroline and xylenol oragne; pH (3.00, 6.00 and 9.0); ATPS-forming electrolyte ((Li2SO4, Na2SO4, MgSO4, Na2C4H4O6 e Na3C6H5O7); ATPS-forming polymer (L64 or PEO1500). The recovery efficiency was evaluated through analyzing the extraction percentage (%E) and the best conditions for analyte extraction were achieved for the PEO1500 + Li2SO4 ATPS, pH = 6.00, using 1-10 phenanthroline as extractant agente (%E = 74,1 %). In the following section, the method was applied to a real NiMH battery leachate. The rare earths were precipitated by pH adjustment (2.50), which was solubilized in 0,1 M H2SO4 solution. After 3 steps of successive extractions it was possible to obtain high separation factor (S) values between the analyte and mettalic concomitant (SLa,Co = 6.3 x 103, SLa,Ni = 2,55 x 104, SLa,Fe = 1,15 x 103 and SLa,Ce = 30,9). Moreover, a stripping assay was carried out and after one single step, 88.5% of lanthanum was available to a possible electro winning step.
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Soares, Lennedy Campos. "Sistema supervis?rio para po?os de petr?leo baseados no m?todo de eleva??o artificial Plunger Lift." Universidade Federal do Rio Grande do Norte, 2010. http://repositorio.ufrn.br:8080/jspui/handle/123456789/12953.
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Previous issue date: 2010-03-22The several existing methods for oil artificial lifting and the variety of automation equipment for these methods many times lead the supervisory systems to be dedicated to a unique method and/or to a unique manufacturer. To avoid this problem, it has been developed the supervisory system named SISAL, conceived to supervise wells with different lifting methods and different automation equipments. The SISAL system is working in several Brazilian states but, nowadays, it is only supervising rod pump-based wells. The objective of this work is the development of a supervision module to the plunger lift artificial lift method. The module will have the same characteristics of working with automation hardware of many manufacturers. The module will be integrated to the SISAL system, incorporating the capacity to supervise the plunger lift artificial lift method.
Os v?rios m?todos de eleva??o artificial de petr?leo e os diferentes equipamentos de automa??o existentes muitas vezes levam a que os sistemas supervis?rios sejam dedicados a um ?nico m?todo e/ou a um ?nico fabricante de equipamentos. Para contornar este problema, foi desenvolvido o sistema SISAL, capaz de supervisionar po?os com diferentes m?todos de eleva??o e equipamentos de automa??o. Atualmente, o SISAL est? em opera??o em diversos po?os em v?rios estados do Brasil, supervisionando po?os de bombeio mec?nico. O objetivo deste trabalho ? desenvolver um m?dulo de supervis?o para o m?todo de eleva??o artificial plunger lift, com as mesmas caracter?sticas de poder trabalhar com hardwares de automa??o de diferentes fabricantes. O m?dulo desenvolvido ser? integrado ao SISAL, de forma a incorporar ao sistema a capacidade de supervisionar este novo m?todo de eleva??o.
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Simonsen, Mai. "Why is collective participation not progressing in irrigation water management systems in India today? : case study Distributary 54 in Tungabhadra River Project, Karnataka, India /." Oslo : Centre for Development and the Environment, Universitetet i Oslo, 2008. http://www.duo.uio.no/publ/sum/2008/81051/Final_Mai_Simonsen_master_thesis_2008.pdf.
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Díaz, Solano Leila Jocelyn, and Rivera Carlos Joel Segovia. "Sistema de Costeo ABC y su influencia en la toma de decisiones gerenciales en el Sector Transporte Terrestre de Carga en Lima, Año 2017." Bachelor's thesis, Universidad Peruana de Ciencias Aplicadas (UPC), 2019. http://hdl.handle.net/10757/654661.
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La presente tesis de investigación tiene como finalidad que la empresa analizada logre conocer sus costos detalladamente, tener una adecuada estructura de costos, acercándose más al costo real de los servicios que brindan, identificando las actividades necesarias para brindar un servicio, asignar correctamente los recursos a las actividades mediante inductores que ayudarán a obtener el objeto de costo, con el fin de tomar las mejores decisiones gerenciales para mejorar la rentabilidad de la empresa, crear valor agregado sobre el servicio que se brinda y cumplir todos los objetivos planeados.
Se aplicó el sistema de costeo ABC basándose en la metodología de aplicación y conceptos recabados de diferentes fuentes sobre el tema investigado, los que se detallan en el primer capítulo mencionando a diferentes autores que han realizado estudios sobre el sistema de costeo ABC, en el segundo capítulo se realiza la descripción del plan de investigación donde se menciona y analiza el problema, y se validan las hipótesis. En el tercer capítulo se presenta la metodología elegida, donde se detalla la investigación cuantitativa y cualitativa, además se define la muestra de la población. El capítulo cuatro explica cómo se ha desarrollado la investigación, las entrevistas a profundidad realizadas a los especialistas, los resultados de las encuestas y el caso práctico aplicando el sistema de costeo ABC. En el quinto capítulo se desarrolla el análisis de los resultados obtenidos por las herramientas usadas, el caso práctico y la validación de las hipótesis.
Para finalizar se realizan las conclusiones y las recomendaciones basándose en las hipótesis planteadas.This research thesis is intended for the analyzed company to achieve their costs in detail, have an adequate cost structure, approaching the real cost of the services that it provides, identifying the activities necessary to provide a service, correctly assign of the resources to activities through inducers that will help obtain the cost object, in order to make the best management decisions to improve the profitability of the company, create added value about the service that provides and fulfill all the planned objectives. The ABC costing system was applied based on the application methodology and concepts collected from different sources on the subject investigated, those detailed in the first chapter mentioning different alters that have carried out studies on the ACC cost place system, in the second chapter the description of the research plan is made in which the problem is mentioned and analyzed, and the hypothesis are validated. In the third chapter, the chosen methodology is presented, where quantitative and qualitative research is detailed, the sample of the population is defined. Chapter four explains how research has developed, in-depth interviews made to specialists, the results of the surveys and the practical case by applying the ABC cost place system. In the fifth chapter the analysis of the results obtained by the used tools, the practical case and the validation of the hypothesis is developed. To finalize conclusions and recommendations are made based on the hypothesis raised.
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Rodríguez, Rodríguez Adrian [Verfasser], Jörg [Akademischer Betreuer] Lehnert, Alberica [Gutachter] Toia, and Christoph [Gutachter] Blume. "The CBM Silicon Tracking System front-end electronics : from bare ASIC to detector characterization, commissioning and performance / Adrian Rodríguez Rodríguez ; Gutachter: Alberica Toia, Christoph Blume ; Betreuer: Jörg Lehnert." Frankfurt am Main : Universitätsbibliothek Johann Christian Senckenberg, 2020. http://d-nb.info/1212930347/34.
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