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Schlosser, Jochen [Verfasser]. "Structure-Based Virtual Screening Using Index Technology / Jochen Schlosser." Aachen : Shaker, 2011. http://d-nb.info/1080764321/34.
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Aylo, Rola. "Wave Propagation in Negative Index Materials." University of Dayton / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1280497573.
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Liu, Pu. "Dependence Structure in Agricultural Index Insurance Design and Product Development." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1285015198.
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Anscombe, G. E. M. "Gramrnar, Structure, and Essence." Pontificia Universidad Católica del Perú - Departamento de Humanidades, 2013. http://repositorio.pucp.edu.pe/index/handle/123456789/113194.
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Pedraza-Arpasi, Jorge. "Algebraic structure of convolutional encoders." Pontificia Universidad Católica del Perú, 2013. http://repositorio.pucp.edu.pe/index/handle/123456789/96237.
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Traditionally the convolutional encoders were regarded as machines from automata theory without any algebraic structure. In this work we give a group structure on such encoders and get some elemental results.
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Hahn, Elmar. "Structure and reactivity of vicinal Pt and low-index Cu/Pd surfaces /." [S.l.] : [s.n.], 1994. http://library.epfl.ch/theses/?nr=1218.
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Gowrisankar, Hariharan. "Yellow Tree — A Distributed Main-memory Spatial Index Structure for Moving Objects." Fogler Library, University of Maine, 2006. http://www.library.umaine.edu/theses/pdf/GowrisankarH2006.pdf.
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Jun, Feng, and Toyohide Watanabe. "Index structure for managing multi-levels of road networks on distributed environment." IEEE, 2003. http://hdl.handle.net/2237/6921.
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CARTER, SABRINA, and JOHANNA LARSSON. "Index-Linked Mortgages in Sweden : A Study of an Alternative Mortgage Structure." Thesis, KTH, Entreprenörskap och Innovation, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-147789.
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Households generally have little or no possibility to unload their real estate risk, which constitutes a large part of their total portfolio risk. The aim of this study is to analyze a way for households to unload this risk through a socalled index-linked mortgage financed by a fund. The study examines how such a mortgage could be structured, and how it will affect he bank, the borrower and the fund investor compared to a conventional mortgage. The ominal loan value and therefore also the interest payments of the studied index-linked ortgage will vary according to the HOX Flats Stockholm Index. Through linear optimization, the structure is optimized from a borrower’s perspective but is subject to a set of constraints on the bank’s and the fund’s profitability and risk levels. The optimal structure is tested through a scenario analysis for different outcomes of apartment price developments and also hrough a sensitivity analysis to test the effect of shifting conventional mortgage rates. The esults show that the interest rate payment burden will consistently be lower for the index-linked mortgage than for the conventional mortgage. The borrower is insured against house price drops but have to give up some of the upside potential on the property investment if house prices increase. The fund gets a satisfactory payoff in relation to the real estate arket movement while it is somewhat protected when house prices decline. The bank issuing the mortgages will always experience a profit, but the conventional mortgage is more profitable or negative index scenarios. Furthermore, the probability of default decreases for the index- inked mortgage holder when prices drop as the loan to value ratio (LTV) always remains elow 100 percent for index decreases up to 40 percent. The structure is appropriate for owincome households who will have difficulties paying back the loan when apartment prices rops. This study contributes to theory in hedging of real estate risk, mortgage risk and inancial innovation.Hushåll har generellt få möjligheter att försäkra sig mot husprisrisk som idag utgör en stor del av hushållens totala portföljrisk. Denna studie undersöker en möjlighet för hushåll att försäkra sig mot sådan risk genom ett så kallat index-länkat bolån som finansieras genom en fond. Studien kontrollerar hur ett index-länkat lån kan struktureras och hur det påverkar banken, låntagaren och fondinvesteraren i jämförelse med ett traditionellt bolån. Lånets nominella värde och därmed även räntebetalningarna som är kopplade till lånet varierar enligt förändringar i HOX Flats Stockholm Index. Lånestrukturen optimerats genom linjär optimering med hänsyn till låntagarens lönsamhet och med bivillkor på bankens och fondens risktagande respektive lönsamhet. Den optimerade strukturen testas genom scenarioanalys för olika utfall av lägenhetsprisutveckling samt genom en känslighetsanalys av den raditionella bolåneräntan. Resultaten visar att den månatliga betalningsbördan för räntebetalningarna alltid kommer att vara lägre för hushåll som håller ett index-länkade bolånet än för de som innehar ett vanligt lån. Det index-länkade lånet innebär att bolånetagare får ge upp en viss del av vinsten då bostadspriser stiger i förhållande till ett vanligt bolån men ger ett skydd mot förluster vid en nedgång i bostadspriser. Fonden visar sig kunna ge en god avkastning i relation till indexets utveckling och ger ett visst skydd mot fall i bostadsmarknaden. Banken som ger ut indexlänkade bolån kommer alltid att gå med vinst, dock är vanliga bolån mer lönsamma vid nedgång i huspriser. Fortsättningsvis minskar risken att ”defaulta” för hushåll med det index-länkade bolånet då huspriser faller eftersom strukturen innebär ett loan to value ratio (LTV) under 100 procent upp till en prisnedgång på 40 procent. Resultatet visar att index-länkade lån passar låginkomsttagare och hushåll som ommer att ha svårt att betala tillbaka sitt lån om bostadspriserna faller. Studien bidrar till teori inom husprisriskförsäkring samt till teori inom finansiell innovation
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Besembel, Carrera Isobel M. "An integrated index structure for object-oriented and spatio-temporal information systems." Thesis, University of Leeds, 1998. http://etheses.whiterose.ac.uk/1279/.
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An index structure is one of the access methods extensively utilized in the data- base area. It defines how access to the data stored in pages on disk is made by permit- ting the retrieval of stored objects through a defined key, that is an attribute of the object. A multi-dimensional (dD) index defines several attributes non-concatenated as its key. This work is devoted to the study of a range of multi-dimensional access methods that could solve the problem of retrieving spatio-temporal objects in object-oriented database applications. The study of some performance parameters and the comparison of five extensions to the selected index method is also included. After presenting a comparison between several dD indexing methods, the R tree structure was selected to index spatio-temporal objects by treating homogeneously both spatial and temporal dimensions. An object-oriented development technique named TDSO was utilized to specify and design the RTree class extensions and the OTree class, which were implemented in C++. A novel approach to building dD indexes which attempts to improve the hit ratio by accommodating spatio-temporal search operators within the indexing mechanism is the first contribution. The development of a family of methods for indexing into dD spatio-temporal data together with preliminary testing of these techniques is the second contribution of the work. We also show a substantial improvement in terms of reduction in wasted space through a redistribution policy and the achievement of better hit ratios and fewer disk accesses in some range searches. In general, we have provided support for the usefulness of the TDSO and object-oriented techniques, which led to a very flexible scheme whereby the indexing structure was easily adapted to our problem.
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Daniels, Camille A. "Coral reef assessment an index utilizing sediment constituents /." [Tampa, Fla.] : University of South Florida, 2005. http://purl.fcla.edu/fcla/etd/SFE0001180.
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Fidalgo-Marijuan, Arkaitz. "Reticular Chemistry Structure Resource (RCSR) and Spectroscopic Tools." Revista de Química, 2016. http://repositorio.pucp.edu.pe/index/handle/123456789/100692.
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Thews, Brennan Nicholas. "Measurement of Temperature, Refractive Index, or Axial Acceleration with Etched PCF Microfiber Structure." Thesis, Virginia Tech, 2015. http://hdl.handle.net/10919/54583.
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In the field of optical fiber sensors, one of the most versatile structures is the Fabry-Perot interferometer. This thesis will present a novel sensor based on an Intrisnic Fabry-Perot Inferferometer (IFPI) cavity to measure axial acceleration, refractive index, and temperature. The sensor structure is based on previous work done by R. Wang at the Center for Photonics Technology. This work suggests its flexibility in many different roles with a sensitivity to axial acceleration of 70 pm/unit of acceleration, to refractive index of 60 nm/Refractive Index Unit, and to temperature of 7.8 pm/°C. Future work is also discussed in measuring tangential acceleration with direction using a PM fiber as the lead-in and observing the reflections on the slow and fast axes.Master of Science
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Herrero-Fernández, David, Sara Fonseca-Baeza, and Sara Pla-Sancho. "Factorial structure of Driving Log in a Spanish sample." Pontificia Universidad Católica del Perú, 2014. http://repositorio.pucp.edu.pe/index/handle/123456789/101153.
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The present study aimed the adaptation of the Driving Log, a questionnaire that assesses aggressive and risky driving behaviors in a day by day basis, with 395 Spanish participants. Confirmatory factor analysis showed that the questionnaire fitted properly in two correlated factors, labeled as Risky Driving and Aggressive Driving. Subsequent analyses showed that the number of drives is significantly associated to Risky Driving, while the number of occasions in which anger is experimented correlated with Risky Driving as well as Aggressive Driving. Other findings suggest that men behave in a more risky and aggressive mannerthan women. Young people follow this same tendency in comparison to their elders.El presente estudio tuvo como objetivo la adaptación del Driving Log, un cuestionario que valora los comportamientos agresivos y arriesgados al volante, en una muestra española de 395 personas. El análisis factorial confirmatorio mostró que el cuestionario ajustaba satisfactoriamente en dos factores, etiquetados como Conducción Arriesgada y Conducción Agresiva. Los análisis posteriores mostraron que el número de trayectos realizados se asoció significativamente a la Conducción Arriesgada, mientras que el número de veces en que se experimentó ira lo hizo tanto con la Conducción Arriesgada como con la Conducción Agresiva. Igualmente, se vio que los hombres se comportaban de forma más arriesgada y agresiva que las mujeres, y que los jóvenes lo hacían en mayor grado que los mayores.
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Uddin, Md Jasim. "Synthesis and analysis of metamaterial structure for microwave frequency applications." Thesis, Queensland University of Technology, 2017. https://eprints.qut.edu.au/107850/1/Md.%20Jasim_Uddin_Thesis.pdf.
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This thesis involves analysis of artificial materials to investigate metamaterial behavior and characteristics. Extraction techniques are used to validate the electromagnetic properties and different microwave applications are investigated. A new geometric structure is designed using dual star split ring resonator, which introduces a sharp, wide rejection band. A metamaterial microwave absorber suitable for dual-band operation and insensitive to incident polarization was also developed.
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Buck, Ian David. "The Integration Index, using GIS to interpret the residential structure of Vancouver, British Columbia." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/MQ62550.pdf.
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Lin, Wei-Lun. "Selecting the Working Correlation Structure by a New Generalized AIC Index for Longitudinal Data." Digital Archive @ GSU, 2007. http://digitalarchive.gsu.edu/math_theses/37.
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The analysis of longitudinal data has been a popular subject for the recent years. The growth of the Generalized Estimating Equation (GEE) Liang & Zeger, 1986) is one of the most influential recent developments in statistical practice for this practice. GEE methods are attractive both from a theoretical and a practical standpoint. In this paper, we are interested in the influence of different "working" correlation structures for modeling the longitudinal data. Furthermore, we propose a new AIC-like method for the model assessment which generalized AIC from the point of view of the data generating. By comparing the difference of the log-likelihood functions between different correlation models, we define the exact value to create an interval for our model selection. In this thesis, we combine the GEE method and a new generalized AIC Index for the longitudinal data with different correlation structures.
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Angkasuwansiri, Thiti. "Development of Wastewater Pipe Performance Index and Performance Prediction Model." Diss., Virginia Tech, 2013. http://hdl.handle.net/10919/51659.
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Water plays a critical role in every aspect of civilization: agriculture, industry, economy, environment, recreation, transportation, culture, and health. Much of America's drinking water and wastewater infrastructure; however, is old and deteriorating. A crisis looms as demands on these systems increase. The costs associated with renewal of these aging systems are staggering. There is a critical disconnect between the methodological remedies for infrastructure renewal problems and the current sequential or isolated manner of renewal analysis and execution. This points to the need for a holistic systems perspective to address the renewal problem. Therefore, new tools are needed to provide support for wastewater infrastructure decisions. Such decisions are necessary to sustain economic growth, environmental quality, and improved societal benefits. Accurate prediction of wastewater pipe structural and functional deterioration plays an essential role in asset management and capital improvement planning. The key to implementing an asset management strategy is a comprehensive understanding of asset condition, performance, and risk profile.
The primary objective of this research is therefore to develop protocols and methods for evaluating the wastewater pipe performance. This research presents the life cycle of wastewater pipeline identifying the causes of pipe failure in different phases including design, manufacture, construction, operation and maintenance, and repair/rehabilitation/replacement. Various modes and mechanisms of pipe failure in wastewater pipes were identified for different pipe material which completed with results from extensive literature reviews, and interviews with utilities and pipe associations. After reviewing all relevant reports and utility databases, a set of standard pipe parameter list (data structure) and a pipe data collection methodology were developed. These parameters includes physical/structural, operational/functional, environmental and other parameters, for not only the pipe, but also the entire pipe system. This research presents a development of a performance index for wastewater pipes. The performance index evaluates each parameter and combines them mathematically through a weighted summation and a fuzzy inference system that reflects the importance of the various factors. The performance index were evaluated based on artificial data and field data to ensure that the index could be implemented to real scenarios. Developing a performance index led to the development of a probabilistic performance prediction model for wastewater pipes. A framework would enable effective and systematic wastewater pipe performance evaluation and prediction in asset management programs.Ph. D.
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Fernández, Sessarego Carlos. "How to legally protect humans if their existential structure is ignored?" IUS ET VERITAS, 2016. http://repositorio.pucp.edu.pe/index/handle/123456789/122494.
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The author makes a critical analysis of how over time it has tried to find the subject of study of Law and how it is distinguished from other beings that make up the universe. t hus the rational dimension of man has passed his ontological analysis as being in itself which makes it unique and spirit as the arrangement will be co-existential seeking protection for the same freedom he has. Finally, the author focuses on the own “freedom” of man and of which the other rights it has.El autor hace un análisis crítico de cómo a lo largo del tiempo se ha tratado de encontrar al sujeto de estudio del Derecho y cómo este se distingue de los demás seres que conforman el universo. e s así como de la dimensión racional del ser humano se ha pasado a su análisis ontólogico como ser en sí mismo cuyo espíritu lo hace único y en tanto que ser coexistencial le procura el ordenamiento una protección por la misma libertad que posee. Finalmente el autor se centra en esa “Libertad” propia del ser humano que genera los demás derechos que posee.
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Merino, Soto César, Dean W. Wichern, and Karin Rivas. "Assessment of the factorial structure of the Survey of Interpersonal Values." Pontificia Universidad Católica del Perú, 2013. http://repositorio.pucp.edu.pe/index/handle/123456789/102250.
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The present study evaluates the factorial structure, in the leve! of the subscales, of the Survey of Interpersonal Values (SIV), and the relationships among them, in a sample of adolescents between 15 and 17 years old of both sexes and from a private and public school, representative of low and middle socioeconomic Ievels. Although the SIV has been a widely used too!, there is no report of ah analysis of its factorial structure in Latín-American samples. By means of the principal components analysis and the factorial analysis with a confirmatory approach, bipolar relationships have been identified between Independence and Benevolence, and Support and Conformity. The confirmation of the pattem of interpersonal values proposed by L. V. Gordon was also accomplished. An aspect considered in the analysis may have artificially influenced the pattern of correlations among the components, and the reliability: the ipsative method of the questions of the SIV. Finally, there is a discussion about the ipsative measurement and its consequences in the interpretation of the results.El artículo evalúa la estructura factorial bajo los efectos del método ipsativo de respuesta, estudiados en el nivel de las subescalas del Cuestionario de Valores Interpersonales de Gordon (SIV), y las relaciones entre ellas, en una muestra de adolescentes entre 15 y 17 años de ambos sexos y procedentes de un colegio privado y estatal, representativos de los niveles socioeconómicos medio y bajo. Aunque el SIV ha sido una herramienta extensamente utilizada, no se reportado previamente un análisis de su estructura factorial en muestras Latinoamericanas. Mediante el análisis de componentes principales y el análisis factorial con un enfoque confirmatorio, se han identificado relaciones bipolares entre Independencia y Benevolencia, y Soporte y Conformidad. Se obtuvo también la confirmación del modelo de valores interpersonales propuesto por L. V. Gordon. En el análisis se consideró un aspecto que artificialmente puede haber influido en el patrón de correlaciones entre los componentes, esto es el método ipsativo de las preguntas del SIV. Finalmente, se discute sobre las medidas ipsativas y sus consecuencias en la interpretación de sus resultados.
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Stombaugh, Jesse. "Predicting the Structure of RNA 3D Motifs." Bowling Green State University / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1225391806.
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Jayatissa, Dangallage Nimal. "Tillage effects on soil-water-air matrix and prediction of soil bulk density from cone index data." Diss., This resource online, 1990. http://scholar.lib.vt.edu/theses/available/etd-08252008-162557/.
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Sutton, Daniel Joseph. "Structure of Invariant Subspaces for Left-Invertible Operators on Hilbert Space." Diss., Virginia Tech, 2010. http://hdl.handle.net/10919/28807.
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This dissertation is primarily concerned with studying the invariant subspaces of left-invertible, weighted shifts, with generalizations to left-invertible operators where applicable. The two main problems that are researched can be stated together as When does a weighted shift have the one-dimensional wandering subspace property for all of its closed, invariant subspaces? This can fail either by having a subspace that is not generated by its wandering subspace, or by having a subspace with an index greater than one. For the former we show that every left-invertible, weighted shift is similar to another weighted shift with a residual space, with respect to being generated by the wandering subspace, of dimension $n$, where $n$ is any finite number. For the latter we derive necessary and sufficient conditions for a pure, left-invertible operator with an index of one to have a closed, invariant subspace with an index greater than one. We use these conditions to show that if a closed, invariant subspace for an operator in a class of weighted shifts has a vector in $l^1$, then it must have an index equal to one, and to produce closed, invariant subspaces with an index of two for operators in another class of weighted shifts.Ph. D.
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Valencia, Sofia. "Market structure and innovation de Morton I. Kamien y Nancy L. Schwartz." Economía, 2012. http://repositorio.pucp.edu.pe/index/handle/123456789/118109.
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Rabinovich, Daniel. "Chemistry: “Biological Inorganic Chemistry. Structure and Reactivity”, Bertini, Gray, Stiefel and Valentine." Revista de Química, 2012. http://repositorio.pucp.edu.pe/index/handle/123456789/101357.
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Goings, Christopher David. "Examination of the Rutgers alcohol problem index : testing the unidimensional properties of the factor structure /." Electronic version (PDF), 2007. http://dl.uncw.edu/etd/2007-3/goingsc/christophergoings.pdf.
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Swartz, Horn Rebecca. "CT3 as an Index of Knowledge Domain Structure: Distributions for Order Analysis and Information Hierarchies." Thesis, University of North Texas, 2002. https://digital.library.unt.edu/ark:/67531/metadc3306/.
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The problem with which this study is concerned is articulating all possible CT3 and KR21 reliability measures for every case of a 5x5 binary matrix (32,996,500 possible matrices). The study has three purposes. The first purpose is to calculate CT3 for every matrix and compare the results to the proposed optimum range of .3 to .5. The second purpose is to compare the results from the calculation of KR21 and CT3 reliability measures. The third purpose is to calculate CT3 and KR21 on every strand of a class test whose item set has been reduced using the difficulty strata identified by Order Analysis. The study was conducted by writing a computer program to articulate all possible 5 x 5 matrices. The program also calculated CT3 and KR21 reliability measures for each matrix. The nonparametric technique of Order Analysis was applied to two sections of test items to stratify the items into difficulty levels. The difficulty levels were used to reduce the item set from 22 to 9 items. All possible strands or chains of these items were identified so that both reliability measures (CT3 and KR21) could be calculated. One major finding of this study indicates that .3 to .5 is a desirable range for CT3 (cumulative p=.86 to p=.98) if cumulative frequencies are measured. A second major finding is that the KR21 reliability measure produced an invalid result more than half the time. The last major finding is that CT3, rescaled to range between 0 and 1, supports De Vellis' guidelines for reliability measures. The major conclusion is that CT3 is a better measure of reliability since it considers both inter- and intra-item variances.
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Scherer, Cordula. "Developing and testing an index of change in microplankton community structure in temperate shelf seas." Thesis, Edinburgh Napier University, 2012. http://researchrepository.napier.ac.uk/Output/5640.
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Assessment of eutrophication of coastal waters has traditionally relied on bulk indicators of ecosystem state (e.g. nutrients and phytoplankton biomass as chlorophyll) and changes in phytoplankton oristic composition such as the occurrence of nuisance and harmful species. Information on these variables does not allow adequate insight into the effects of anthropogenic nutrient enrichment on ecosystem health, i.e. the structure and functioning of the biological community. Environmental policies like the Marine Strategy Framework Directive (MSFD) require an ecosystem approach to marine management, suggesting the need for a holistic approach to assessing environmental status. Autotrophic species of microplankton are primary producers and form the base of the pelagic food web. Microheterotrophs are their immediate consumers, and this suggests that changes in microplankton community structure may be a useful indicator of pelagic ecosystem health. The aim of this study was to develop and test an indicator to detect change in microplankton community structure in the context of eutrophication. The theoretic approach of an existing phytoplankton community index (PCI) was used to develop a microplankton community index (MCI). The theory involved the use of "lifeforms" (functional groups) and system state space theory. The approach was to select lifeforms that provided information on eutrophication, biodiversity and energy flow. These lifeforms included diatoms, dino agellates, micro-agellates, and ciliates. Pairs of lifeforms were used as state variables to describe the state of the ecosystem. For each pair of lifeforms, data on abundance or carbon biomass were mapped into state space. The resulting "cloud" of points incorporated the inherent variability of microplankton populations. The index calculated as the difference between "clouds", can be used to determine whether differences occur between different sites (with different degrees of pressure) or at the same site over time (response to pressure at a single site). Three moored instrument sites were selected to develop and test the MCI. High temporal resolution sampling of physical, chemical, and microplankton components was carried out for two years (February 2008-December 2009) in the western Irish Sea (WIS). For the mooring sites in Liverpool Bay (LBay) in the eastern Irish Sea and the West Gabbard (WGabb) in the southern North Sea data of those components were provided for the same frequency and period. Microplankton cell abundance and carbon biomass showed that the expected seasonal cycle was coupled to hydrodynamic conditions at each site with the sub-surface light climate considered to be the main factor that controlled the start and duration of the production season at all three sites. At WIS, diatoms dominated the spring bloom and autumn period. Succession from diatoms to dino agellates was associated with increased stratification and micro-agellates were abundant but without an obvious seasonal pattern. Diatoms dominated the microplankton throughout the year at LBay and WGabb due to high nutrient concentrations and intermittently stratifying conditions. The influence of nutrient enrichment on microplankton community was investigated at the LBay (≈ 30μM winter DIN) and WGabb (≈ 15μM winter DIN) sites by using five pairs of lifeform state space plots (diatoms/dino agellates, autotrophs/heterotrophs, autotrophs/mixotrophs, mixotrophs/heterotrophs, and small/large sized microplankton). A clear increase in the autotroph biomass at LBay station in the autotrophs/mixotrophs comparison was observed and the MCI value of the small/large sized microplankton comparison suggested a difference between the communities at the two sites with higher biomass of the large sized lifeform at LBay. Comparisons with the heterotrophic lifeform were difficult, because few data points were available. By including additional microplankton lifeforms the MCI extended the PCI approach and can be used to provide a more complete assessment of change in microplankton community structure. Further development and assessment is required such as what represents the optimum size of datasets for reliable application of the index and the distinction of the nutritional mode in long-term preserved microplankton samples. A key element of the MCI application is the comparison to a reference condition. According to the MSFD such conditions should be representative of good environmental status (GES). On the basis of current understanding of microplankton ecology (biogeography, seasonal dynamics and succession) the results from this study suggest that the microplankton community at station WIS represents GES and this station is therefore proposed as a reference site for seasonally stratifying temperate shelf seas.
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Janin, Emmanuelle. "Adsorption and bonding on platinum : influence of the surface structure and chemical composition." Doctoral thesis, KTH, Physics, 2000. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3079.
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This thesis deals with the influence of the structure andchemical composition of platinum surfaces on the adsorption ofsome molecules. Three main lines can be distinguished : 1) thecharacterisation of clean/modified surfaces, 2) the adsorptionof some simple atoms and molecules on these surfaces andfinally 3) the adsorption of 2-butenal, a bi-functionalmolecule containing a C=C group conjugated with a C=O group.The main tools used in this work are scanning tunnellingmicroscopy, photoelectron spectroscopy and high-resolutionelectron energy loss spectroscopy, in combination with quantumchemical calculations.
The platinum (111)(1× 1) and (110)(1× 2) surfacesare chosen as substrates. Pt(111) is a non-reconstructedclose-packed surface, while the Pt(110) surface is open, due toits missing row (MR) reconstruction, which results in thealternation of ridges, {111} microfacets and valleys. Titaniumgrows on Pt(111) in a Volmer-Weber mode. Pronounced reactionsbetween Pt and Ti are detected already at room temperature asthe Ti2p and Pt4f7/2core-level shifts are characteristic of the Pt3Ti alloy. Carbon segregated on the (110) surfaceappears as extended graphitic regions, which smoothen thesubstrate. Sn deposition at room temperature on Pt(110) resultsin the appearance of small islands, randomly spread over thesurface. The presence of mobile Sn ad-atoms and Pt-Sn-Ptalloyed chains in the valley of the MR reconstruction is alsoevidenced. Annealing the surface results in the rearrangementof the tin in the surface layer, together with a globalshortening of the terraces in the [110]direction and anincreased density of (1× n) (n>2) defects.
The adsorption of atomic hydrogen and oxygen has beenperformed on the Pt(111)( √ 3x √3)R30º surfacealloy and on Pt(110)(1× 2) respectively. The adsorptionsite of these atoms is changed as compared to the onedetermined on the clean Pt(111) surface (i.e. fcc hollow site): H is adsorbed on-top site on the (√3× √3)surface alloy, and O sits on the ridge of the missing rowreconstruction in bridge site. Carbon monoxide adsorption wasperformed on Pt(111) and Pt(110)(1× 2) surfaces, modifiedor not by tin. On the unmodified (111) surface, CO adsorbsfirst in top site, thenin bridge. Changing the geometry of thesurface to the (110) results in the vanishing of the bridgesite population. Modifying these surfaces by Sn does not changethe CO adsorption site.
Finally, 2-butenal (CH3-CH=CH-CH=O) has been adsorbed at 100 K on thePt(111) surface and the Sn/Pt(111) surface alloys. On theunmodified Pt surface, comparison with results obtained forpropene (CH2=CH-CH3) adsorption evidences the involvement of the C=Cgroup of the 2-butenal molecule in the bonding to the Ptsurface. The carbonyl group is also suggested to take part inthe bonding, through a σccη1(O) configuration. This carbonyl group bondingdisappears when Sn is alloyed to the surface, and the formationof a new physisorbed phase is detected.
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Chavarría, Castillo Cindy Cecilia, Jar Carlos Alfredo Casquero, and Castillo Dionel Martínez. "Smuggling: its importance in the trinational region in front of the spatial structure." Pontificia Universidad Católica del Perú. Centro de Investigación en Geografía Aplicada, 2013. http://repositorio.pucp.edu.pe/index/handle/123456789/119820.
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The research focuses on the contraband´s spatial interactions that arise front to spatial structure, organization and pre existing complementary links, we identified through a diachronic analysis, establishing our field of study as the geographic area we call Trinational Macro Region: southern Peru, northern Chile and western Bolivia. This activity generates spatial dynamics and flows that are developed in the context of globalization and these exploit existing comparative advantages, i.e. the status of being neighbouring countries, the strategic location with respect to South America and the rest of the world, the communication channels, the absence of the state in these regions and price differentiation between licit products and contraband ones. These dynamic and flows, these are spatialize under various strategies adopted to transport contraband, storage and distribution of products.La investigación se centra en las interacciones espaciales del contrabando que surgen frentea una estructura espacial, organización y vínculos de complementariedad preexistentes, que identificamos mediante un análisis diacrónico, estableciendo como nuestro campo de estudio el área geográfica que denominamos macrorregión trinacional: el sur del Perú, el norte de Chiley el noroeste de Boliva. Esta actividad genera dinámicas espaciales y flujos que se desarrollan en el contexto de la globalización y aprovechan las ventajas comparativas existentes, es decir, la condición de ser países fronterizos, la localización estratégica con respecto a América del Sur y el resto del mundo, las vías de comunicación, la débil presencia del Estado en estas regiones y la diferenciación de precios entre los productos lícitos y los de contrabando. Estas dinámicas y flujos se espacializan bajo diversas estrategias que adopta el contrabando para el traslado, almacenamiento y distribución de los productos.
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Riesco, Lind Gustavo, and Bobadilla Ronal Arela. "Impact of the Family Structure on Satisfaction with Household Income in Urban Peru." Economía, 2015. http://repositorio.pucp.edu.pe/index/handle/123456789/118268.
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Family structure affects not only household income but can influence how revenues contributeto financial satisfaction. That is to say, it is possible that a certain family structure can be more efficient in producing satisfaction than another. Using microdata from the National Household Survey (ENAHO) 2013, a probit econometric model is proposed for urban households in Peru, in which the likelihood of satisfaction with household income is a function of income itself, both in absolute terms and relative to other households, and of various household characteristics, including aspects of family structure. Analysis of ENAHO 2013 reveals that 80.2% of house- holds report being satisfied with their income; satisfaction levels among lone parents are the lower than in other groups (77.3%) and the highest satisfaction levels are reported by married couples with children and cohabiting couples with children (82.8% and 80.3% respectively). Results of the regression model support the conclusions of other studies, in that per capita hou- sehold income has a positive impact on the probability of income satisfaction; however, it is not the only significant variable. In particular, we have found evidence that the difference between household expenditure and average household expenditure in the region (a measure of relative expenditure) also influences the likelihood of income satisfaction, as well as changes in household economy relative to that of other households in the area. Regarding family structures considered in the study, households of married couples with children, cohabiting couples with children, and cohabiting couples without children are less responsive than other households in several variables: number of household members, income per capita, difference between household expenditure and the regional average, and university education of the household head. In single- parent households in general, satisfaction with income is particularly sensitive to changes in the number of household members, per capita income, difference between household expenditure and the regional average, university education of the household head, and perception of declinein household living standards relative to other households in the area.La estructura familiar no solo afecta los ingresos del hogar, sino que puede influir en la maneracomo los ingresos contribuyen a la satisfacción financiera. Es decir, para un mismo nivel de ingresos, es posible que una estructura familiar sea más eficiente en producir satisfacción que otra. Utilizando los microdatos de la Encuesta Nacional de Hogares (Enaho) 2013, se plantea un modelo econométrico tipo probit, para los hogares urbanos en Perú, en que la probabilidad de satisfacción con los ingresos del hogar es una función del ingreso mismo, tanto en términos abso- lutos como en relación con los demás hogares, y de diversas características del hogar, incluyendo aspectos de la estructura familiar. El análisis de la Enaho 2013 revela que el 80,2% de los hogares indica estar satisfecho con sus ingresos; los niveles de satisfacción de los hogares monoparentales son los menores entre los grupos (77,3%) y los niveles más altos son reportados por los casados con hijos y convivientes con hijos (82,8% y 80,3% respectivamente). Los resultados del modelo de regresión respaldan las conclusiones de otros estudios, según los cuales el ingreso per cápita del hogar tiene un impacto positivo en la probabilidad de satisfacción con los ingresos del hogar; sin embargo, no es la única variable significativa. En especial, se ha encontrado evidencia de que la diferencia del gasto del hogar respecto al gasto promedio de los hogares de la región (una medida de gasto relativo) también influye sobre la probabilidad de satisfacción con los ingresos, así como la evolución de la economía del hogar en comparación con la de los demás hogares de la localidad. Por lo que se refiere a las estructuras familiares consideradas en el estudio, los hogares casados con hijos, convivientes con hijos y convivientes sin hijos se han mostrado menos sensibles que el resto de hogares en diversas variables: número de miembros del hogar, ingreso per cápita, diferencia del gasto del hogar respecto al promedio regional, percepción de deterioro relativo del nivel de vida del hogar y estudios universitarios del jefe de hogar. En los hogares monoparentales, en general, la satisfacción con los ingresos se muestra especialmente sensible frente a cambiosen número de miembros del hogar, ingreso per cápita, diferencia del gasto del hogar respecto al promedio regional, estudios universitarios del jefe del hogar y percepción de deterioro del nivel de vida del hogar relativo a otros hogares de la zona.
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Córdova, Osnaya Martha. "Internal consistency and factorial structure of the Beck Hopelessness Scale among Mexican students." Pontificia Universidad Católica del Perú, 2012. http://repositorio.pucp.edu.pe/index/handle/123456789/100387.
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The Beck Hopelessness Scale was applied in a sample of 971 male and female students, chosen at random sampling from Mexico City, with an average age of 16.75 years. Results were compared to those reported by Beck, Weissman, Lester and Trexler (1974). Results showed adequate reliability (≥ 0.70) in the total sample by gender. Factorial structure matched only in the Affective factor as reported by Beck et al. (1974) with respect to the total sample. Differences in saturation and factorial structure in both sexes were observed. It was concluded that the factor structure of Beck Hopelessness Scale registers different factor structure in the total sample, according to sex.En una muestra de 971 estudiantes de ambos sexos elegidos en forma aleatoria de la ciudad de México con un promedio de edad de 16.75 anos, se aplicó la Escala de Desesperanza de Beck. Se calculo la consistencia interna y la estructura factorial con el procedimiento reportado por Beck, Weissman, Lester y Trexler (1974) en muestra total y por sexo. Los resultados indicaron confiabilidad adecuada (≥ .70) en la muestra total y por sexo, estructura factorial coincidente solo en el factor Afectivo en la muestra total, y diferencias de saturación y de estructura factorial en ambos sexos. Se concluyo que la Escala de Desesperanza de Beck registra diferente estructura factorial en muestra total y de acuerdo con el sexo.
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Argumedo, Bustinza Doris, Cema Karem Díaz, Arturo Calderón, Morales Juan Francisco Díaz, and Joseph R. Ferrari. "Assessment of the confiability and factorial structure of three scales measuring chronic procrastination." Pontificia Universidad Católica del Perú, 2012. http://repositorio.pucp.edu.pe/index/handle/123456789/101399.
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This study explores the confiability and factorial structure of three scales measuring chronic procrastination: Scale of General Procrastination (EPG. Lay. 1986). Adult Procrastinatio Inventory (lPA. McCown & Johnson as cited in Ferrari. Johnson & McCown. 1995) and the Scale of Procrastination in Decision-Making (PTF. Mann. 1982). The sample included 514 adults between 20 and 65 years of age from Lima. The three scales showed high levels of intemal consistency and factorial analysis showed three factors for EPG and IPA and one factor for PTD A second degree factorial analysis suggested the presence of only one factor based on the grouping of items of the EPG and IPA scales The study did not find theoretically relevant dlfferences in chronic procrastination according to gender, age or education level. However,with respect to socioeconomic status. there were higher levels of chronic procrastmation in the poorest sectorEste estudio explora la confiabilidad y estructura factorial de tres escalas que evalúan la procrastinación crónica: Escala de Procrastinación General (EPG. Lay. 1986). Inventario de Procrastinación para Adultos (lPA. McCown & lohnson como se cita en Ferrari. lohnson & McCown. 1995) y Escala de Procrastinación en la Toma de Decisiones (PTD. Mann. 1982). La muestra estuvo compuesta por 514 adultos entre 20 y 65 años de Lima Metropolitana. Las tres escalas mostraron altos niveles de consistencia interna y los análisis factoriales indicaron una solución de tres factores para EPG e IPA y un solo factor para PTD. Un análisis factorial de segundo orden sugirió la existencia de un sólo factor a la base de las agrupaciones de los ítemes de las escalas EPG e IPA. No se observaron diferencias teóricamente relevantes en la procrastinación crónica según sexo. edad y nivel de instrucción. sin embargo. el estrato socio-económico indicó mayores niveles de procrastinacióncrónica en el sector más pobre.
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Ye, Xiangyu. "An Indexing Structure and Application Model for Vehicles Moving on Road Networks." FIU Digital Commons, 2004. http://digitalcommons.fiu.edu/etd/26.
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Moving objects database systems are the most challenging sub-category among Spatio-Temporal database systems. A database system that updates in real-time the location information of GPS-equipped moving vehicles has to meet even stricter requirements. Currently existing data storage models and indexing mechanisms work well only when the number of moving objects in the system is relatively small. This dissertation research aimed at the real-time tracking and history retrieval of massive numbers of vehicles moving on road networks. A total solution has been provided for the real-time update of the vehicles’ location and motion information, range queries on current and history data, and prediction of vehicles’ movement in the near future. To achieve these goals, a new approach called Segmented Time Associated to Partitioned Space (STAPS) was first proposed in this dissertation for building and manipulating the indexing structures for moving objects databases. Applying the STAPS approach, an indexing structure of associating a time interval tree to each road segment was developed for real-time database systems of vehicles moving on road networks. The indexing structure uses affordable storage to support real-time data updates and efficient query processing. The data update and query processing performance it provides is consistent without restrictions such as a time window or assuming linear moving trajectories. An application system design based on distributed system architecture with centralized organization was developed to maximally support the proposed data and indexing structures. The suggested system architecture is highly scalable and flexible. Finally, based on a real-world application model of vehicles moving in region-wide, main issues on the implementation of such a system were addressed.
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Hinnerich, Mia. "Derivatives pricing and term structure modeling." Doctoral thesis, Stockholm : EFI, 2007. http://www.gbv.de/dms/zbw/559681143.pdf.
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Basso, Monteverde Leticia. "Contributions to an interpretation of the structure of Dasein according to its bidimensional character." Pontificia Universidad Católica del Perú - Departamento de Humanidades, 2014. http://repositorio.pucp.edu.pe/index/handle/123456789/112881.
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From a reading of Sein und Zeit and contemporary courses, we are interested in examining the transcendental structure of Dasein to explain what we understand as its bidimensional character. For this, we analyze the function of the mood in the dynamics of the structure through the anxiety (Angst) and profound boredom (tiefe Langeweile). We emphasize the affective disposition as an existential starting point and condition of possibility for two pathways, since in relation to being we observed tension between two dimensions that are oscillated Dasein towards one concealment and one unconcealed motion of what happens. With this interpretation we intend to show that the tensive dynamics of the bidimensional structure of Dasein proposed here is the effect of the original givenness of being.A partir de una lectura de Sein und Zeit y los cursos coetáneos a esta obra, nos interesa examinar la estructura trascendental del Dasein para explicar lo que entendemos como su carácter bidimensional. Para esto, analizamos la función del temple de ánimo en la dinámica de la estructura a través de la angustia (Angst) y el aburrimiento profundo (tiefe Langeweile). Enfatizamos la disposición afectiva como punto de partida existencial y condición de posibilidad para dos vías, ya que en la relación con el ser observamos cierta tensión entre dos dimensiones que hacen oscilar al Dasein hacia un movimiento de ocultación y uno de desocultación de lo que acontece. Con esta interpretación, pretendemos mostrar que la dinámica tensiva de la estructura bidimensional del Dasein aquí propuesta es el efecto de la originaria donación del ser.
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Kammermeier, Franz [Verfasser]. "CoverIBGF: A Multi-Attribute Index Structure with Guaranteed Performance and Efficient Support for Concurrency / Franz Kammermeier." Aachen : Shaker, 2005. http://d-nb.info/1186582200/34.
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Ade-Ademilua, Omobolanle Elizabeth. "Plastochron index - an indicator of plant structure and function a case study using Pisum sativum L." Thesis, Rhodes University, 2006. http://hdl.handle.net/10962/d1003751.
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The use of chronological age for example, using days after sowing (DAS), or days after germination (DAG) as a time variable may result in the inherent variability between plants resulting in differences which can be large enough to obscure subtle developmental trends that become evident among plants sown at the same time. An alternative to DAS or DAG is the plastochron index (PI), first used by Erickson and Michelini (1957) as a morphological time scale and numerical index; which to according to the authors suggested and represented a more accurate reflection of the developmental status of a plant. The research presented in this thesis was therefore aimed specifically at utilizing the index in qualitative and quantitative analyses, to confirm its usefulness in analyzing and predicting plant growth and development. Specifically this research focused on investigating various morphological and physiological events that together, hopefully, would serve as a template for the prediction of the growth, development and reactions of Pisum sativum L. to different growth conditions. In Chapter 3, the use of the average length of the first pair of leaflets on each node as a suitable parameter for calculating PI in P. sativum is suggested. The results presented in Chapter 3 suggest that plant age is best expressed using the plastochron index, as this reflects the time interval between the initiations of successive pairs of leaflets. This section of the research has been published as “Ade-Ademilua OE, Botha CEJ (2005) A re-evaluation of plastochron index in peas - a case for using leaflet length. South African Journal of Botany 71: 76-80”. The PI formula developed was subsequently used in this research to conduct qualitative and quantitative investigations of plant growth and development in which all data and observations were related directly to the plastochron index. In Chapter 4, the sink to source transition in Pisum sativum L. leaves at different plastochron ages in nodulating plants was investigated using the phloem-mobile fluorescent marker, 5,6-carboxyfluorescein (5,6-CF). The results demonstrated that young leaves remained strong sinks up until LPI 0, after which sink-source transition occurred up to LPI 1.8 and leaflets transitioned to strong source systems by LPI 2.0. A well-developed cross-connected phloem system between paired leaflets in peas, and the petiole and the stem vascular supply was observed. The data presented in the second part of Chapter 4 suggest that the phloem transport between leaflet pairs is independent of the sink/source state of the leaflets, or of movement along the source to sink gradient. The data support the presence of a modular transport system which may ensure re-allocation and balancing between leaflets of the same physiological age and photosynthetic and transport status, thereby load-balancing the local transport system, before exporting to other younger (sink) regions. The investigation of leaf development using the plastochron index (Chapter 5) revealed that the formation of air spaces in the palisade and spongy mesophyll, one of the preparatory events for transition from sink to source state in developing leaves, occurs between LPI 0 and LPI 1 in pea leaflets. Results of the anatomical and ultrastructural study related to PI are presented in Chapter 5. The density of wall ingrowths in transfer cells of minor veins increased with LPI and appeared to be associated with the probable transition to source state and the related potential increase in the production of assimilates for export. The onset of wall ingrowth development in leaflets at LPI 0 provided evidence that sink-to-source transition commences at LPI 0 in P. sativum. Presumably-functional plasmodesmata as well as a few mature sieve elements were evident in class IV veins in the apical region of young and older leaflets at LPI 0. The number of mature sieve elements per vein however, increased with increasing LPI. Most class V veins were still undergoing division at LPI 0 and their sieve elements did not show signs of maturity until LPI 1. The increase in the number of mature metaphloem sieve elements in young, supposedly importing tissue at LPI 0 to older, supposedly exporting tissues at LPI 2 is evidence of the association between phloem maturation and transition from importing to exporting status. In Chapter 6, I report on the effects of elevated CO[subscript 2] on the growth and leaf development of nodulating and non-nodulating Pisum sativum L var. Greenfeast grown under controlled environment of the same nitrogen (6mM) and nitrogen- free nutrient solution conditions. Shortterm exposure to elevated CO[subscript 2] induced rapid plant growth, irrespective of treatment. However, long-term elevated CO[subscript 2] treatment did not affect rate of leaf appearance (RLA) in nodulated plants, irrespective of mineral N supply but enhanced RLA in non- nodulating plants supplied with mineral N. Supplied N resulted in a significant increase in leaflet elongation rate (LfER) under both ambient and elevated CO[subscript 2], but LfER was not significantly affected by nodulation but was increased by high CO[subscript 2]. This suggested that the growth of nodulating P. sativum L may not be significantly affected under CO[subscript 2] levels as high as 1000 μmol mol[superscript -1]. The data suggest that elevated CO[subscript 2] will enhance canopy size, provided adequate soil N is available and more so in non-nodulating plants. This section of the research has been published as “Ade-Ademilua OE, Botha CEJ (2004) The effects of elevated CO[subscript 2] and nitrogen availability supersedes the need for nodulation in peas grown under controlled environmental conditions. South African Journal of Botany 70: 816 – 823”. This thesis demonstrates that the similarity in the qualitative analyses results obtained from plants from different CO[subscript 2], nitrogen and nodulation treatment conditions, highlights the fact that plants of same PI value are at the same developmental state, irrespective of the growth condition. Furthermore, changes in plant structure and function observed under different growth conditions can be related simply to changes in plastochron index. The work presented in this thesis demonstrate that changes in plant structure and function analyzed are related to changes in PI. An important finding of this thesis is that with the use of PI, results can be compiled as a template for predicting the structure- function state of pea plants at any plastochron age, under any growth conditions, before using small representative sample populations.
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Kamdar, Akshay R. "Miscibility and Structure-Property Relationships in Some Novel Polyolefins." Cleveland, Ohio : Case Western Reserve University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=case1234451598.
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Thesis (Ph.D.)--Case Western Reserve University, 2009Abstract Department of Macromolecular Science and Engineering Title from PDF (viewed on 16 April 2009) Available online via the OhioLINK ETD Center
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Szlezák, Thomas. "What does 'Coming to the Aid of Logos' mean? Structure and Aim of thePlatonic Dialogues." Pontificia Universidad Católica del Perú - Departamento de Humanidades, 2013. http://repositorio.pucp.edu.pe/index/handle/123456789/113254.
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The central concept of the critique of writing (Phaedrus274b278e). Many passages of the dialogues themselves show what this means: not a justification of the first lagos by means of additional arguments on the same level (as Vlastos ascertains), but a deliberate recourse to higher-leveled arguments that may bring us closer to the ápxfÍ.That the Platonic philosopher be always capable of coming to the aid of the written lagos orally, thus revealing it as inferior (278bc), implies that he does not express all of his philosophy in writing, but that he guards what is more valuable (his Hf.Lt<:nepcx) for speech.El concepto central de la critica de la escritura (Fedro 274b-278e). Numerosos pasajes de los diálogos mismos muestran lo que ello significa: no una justificación del primer lagos por medio de más argumentos en el mismo nivel (como sostiene aún Vlastos), sino el recurso decidido a argumentos de un nivel superior que nos acerquen al ápxfÍ. Que el filósofo platónico sea siempre capaz de acudir verbalmente en ayuda de llagos escrito, mostrándolo así inferior (278bc), implica que él no expresa toda su filosofía en la escritura, sino que reserva para el habla lo que le esmás valioso (su c¡¡.uwcepcx).
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Kingdom, Erin Lee. "AN EVALUATION OF HABITAT STRUCTURE AND THE DISTRIBUTION OF RARE AND COMMON DARTERS IN OHIO." Wright State University / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=wright1310393511.
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Krsmanovic, Dusko <1985>. "A Law and Economics Analysis of Lobbying Regulation Towards an optimal structure through the Cost Indicator Index." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amsdottorato.unibo.it/6695/.
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This research primarily represents a contribution to the lobbying regulation research arena. It
introduces an index which for the first time attempts to measure the direct compliance costs of
lobbying regulation. The Cost Indicator Index (CII) offers a brand new platform for qualitative and
quantitative assessment of adopted lobbying laws and proposals of those laws, both in the
comparative and the sui generis dimension. The CII is not just the only new tool introduced in the
last decade, but it is the only tool available for comparative assessments of the costs of lobbying
regulations.
Beside the qualitative contribution, the research introduces an additional theoretical framework for
complementary qualitative analysis of the lobbying laws. The Ninefold theory allows a more
structured assessment and classification of lobbying regulations, both by indication of benefits and
costs. Lastly, this research introduces the Cost-Benefit Labels (CBL). These labels might improve an
ex-ante lobbying regulation impact assessment procedure, primarily in the sui generis perspective.
In its final part, the research focuses on four South East European countries (Slovenia, Serbia,
Montenegro and Macedonia), and for the first time brings them into the discussion and calculates
their CPI and CII scores. The special focus of the application was on Serbia, whose proposal on the
Law on Lobbying has been extensively analysed in qualitative and quantitative terms, taking into
consideration specific political and economic circumstances of the country.
Although the obtained results are of an indicative nature, the CII will probably find its place within
the academic and policymaking arena, and will hopefully contribute to a better understanding of
lobbying regulations worldwide.
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DonlagicÌ, Denis. "Microbend sensor structure based on selective excitation and filtering of the modes in graded index optical fibres." Thesis, University of Strathclyde, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.248635.
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Chen, Hsi-Yen, and 陳皙彥. "An index structure for efficient document retrieval-Term Inheritance Structure." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/98974404766445402933.
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碩士朝陽科技大學
資訊管理系碩士班
91
As more and more electronic documents are generated, the management of structured documents and the efficiency of the retrieval system become significantly essential. With popular inverted file structure, still a large number of documents will be searched and examined when queried with multiple index terms; that is, any document contains any one of the index terms will be checked. An improved new index structure Term Inheritance Structure (TIS), which can reduce the search time when queried with multiple index terms, is proposed. In addition, a new algorithm of query-document similarity is defined to more precisely measure the relativeness of retrieved documents based on user’s index terms and term weights. Although it takes time and space to construct the data structure of the TIS, it only needs to be implemented once. Thereafter it may save a lot of search and retrieval time when querying frequently from a large document base.
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林國義. "Construction of Semiconductor Overall Fab Performance Index Hierarchy Structure and Index control." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/03432611200817346232.
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蔡易成. "OLAM Cube Index Structure fpr OMARS System." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/95742496958422316249.
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碩士義守大學
資訊管理學系碩士班
92
ABSTRACT The integration of data warehouses and data mining is one of the mainstreams of knowledge discovery and management, In the past years, our research team has proposed an Online Multi-dimensional Association Rules mining System, called “OMARS”. By utilizing the proposed OLAMdata cubes and auxiliary cubes, this system intends to produce an on-line environment, in which the users can dynamically change the qualified association rules in no time.Since the warehouse schema usually consists of dimension attributes, there are many different OLAM cube. Therefore, how to search for the required OLAM cube from such a massive amount fo OLAM cubes will affects the OMARS system efficiency. The aim of this thesis is the construct a multidimensional index structure in order to search all OLAM cubes and can effectively retrieve the qualified OLAM cube. To this end, we propose a three-layer index structure.Experimental results show this schema can retrieve the required OLAM cube efficiently. Keyword: Data warehouse, data mining, association rule, OLAM cube, auxiliary cube, prefix tree, R-tree, multi-dimensional index structure.
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CHANG-MINGBANG and 張銘榜. "A study of index biology on seacoast structure." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/24799281117478002488.
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碩士中華大學
土木工程學系碩士班
93
Abstract To explore index biology on seacoast structure , This research targets geographies in four different locations in Hsin-chu Port、Wu-shi Port、An-pin Port、Sing-da Port , separated each location into three different zone to conduct my biological research , by testing the water temperature , salt , conductivity , and PH to understand the marine biology and ecosystem in different bay areas in the country in order to build up knowledge to provide furthur research analysis. This research utilize data and consider the diversity and habitat,s parameters（water temperature , salt , conductivity , PH , time of soak in water） , By wide variety of results and habitat，s parameters determine to index biology. The wide variety of results shows the index biology in Hsin-chu Port is Cbondrus Ocellatus， the index biology in Wu-shi Port is Ulva Clathrata，the index biology in An-pin Port is Centroceras Clavulatum，the index biology in Sing-da Port is Lepus Anserifera；By wide variety of results and habitat，s parameters results , shows that （Sarcodia montagneana） is the most appropriate ； The analysis from the two different ways shows that the results are related , using the two ways simultaneously would greatly increase the credibility.
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Chen, Zhi-Hong, and 陳志宏. "Research of Damage Index of Reinforced Concrete Structure." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/25734364164134865364.
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碩士國立臺灣大學
土木工程學研究所
98
This thesis is for the purpose of discussing the damage index of buildings under the earthquake over the years of definition by scholars, the so-called damage index,is refers to the structure to receive a succession of structure response parameter which under the earthquake function, and to establish a set of computation flow the damaged condition size. We may because of the damage index, to cognitive structure of extent of damage preliminary to judge this structure whether suits the housing or use again. We use the structure to suffer a strong earthquake to make the system enter the non-linearity, cause the natural frequency of structure to start to change and judges its damage. This thesis simulates behavior of the nonlinear system in use Least-Squares Method to get the equivalent linear damping and frequency, and confirms its accuracy by Newmark-β Method, after judges the extent of damage of structure by the Maximum softening damage index, and improves it by the frequency with stiffness relations to damage index to promote its sensitivity. Then uses Park and Ang damage index this index is formed by the structure displacement and the energy dissipation under the carrying capacity, and considered its structural material parameter, the Maximum softening damage index, stiffness destruction index and Park and the Ang destruction index will do reorganizes and compares its good and bad points. Finally, we can get the time history and material parameter of frames of one layer three cross frame collapse tests in National Center for Research on Earthquake Engineering to treat as measured value, carries on the example analysis. By way of identification as well as calculates result of each destruction index to make a comparison.
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Chu, Heng-Hsing, and 朱恆興. "Implementation of B+Tree Index Structure on JFFS2." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/02142418543725234801.
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碩士輔仁大學
資訊工程學系
97
With the rapid development of flash memory, it is necessary to provide high speed read/write with a fast access to the data having great capacity. The technology also upgrades throughout the usage of flash memory as its fundamental basis. Journaling file system plays an important role in flash memory which is a methodology/creation to record journal entries so as to solve traditional defects of files within associated systems. The concept of its designing is to track down alternations from the file systems and record them onto the journals. The purpose of such a program is to prevent any serious loss or damages which might be done to the file system. Journaling Flash File System version 2 (JFFS2) is a branch of journaling file system which is derived from the flash memory. The integration of Memory Technology Device (MTD) and flash memory provides an effective management while reading/writing/erasing operations within files, and also performs better upon wear-leveling and garbage-collection under Linux processing environment. Problems occur while applying to a large amount of data, since JFFS2 was designed for flash memory which has small amount of data. If B-tree structure is adapted as the managing mechanism upon retrieve/store mechanism on the back-end, it would be time-consuming and less efficient. B+tree is a key alignment to form an index structure. In B+tree, unlike B-tree, there are ‘index node’ and ‘data node’. Before storing information to the ‘index node’, the indicated files would be kept on the ‘data node’. Furthermore, that information is stored on the left-hand side within the ‘data node’. Such interaction creates an index association to increase the chances of searching any kind of materials. This thesis mainly discusses JFFS2-the organization of back-end administration and the B-tree structure. One can easily comprehend the discussion of how to replace the original B-tree fundamental structure by using B+tree’s structures and how B+tree works to enhance performance and improve the efficiency. To explore all the research intension stated above, we need to adopt Linux as a complementing platform, and also the kernel parts from the Linux to upgrade, proceeds beta testing, and finally manipulating the JFFS2’s source codes. The results of experiments reveal that overall JFFS2 performs better under B+tree structure rather than under B-tree structure.
50
Wang, Chun-hsiung, and 王俊雄. "Scalable Multi-feature Index Structure for Music Databases." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/84918039439186418175.
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碩士朝陽科技大學
資訊管理系碩士班
96
The management of large collections of music data in a multimedia database has received much attention in the past few years. In the most of current works, the researchers extract the features, such as melodies, rhythms and chords, from the music data and develop indices that will help to retrieve the relevant music quickly. Several reports have pointed out that these features of music can be transformed and represented in the forms of music feature strings or numeric values such that the indices can be created for music retrievals. However, there is only a small number of existing approaches introduced multi-feature index structures for music queries while most of others are for developing single feature indices. The existing music multi-feature index structures are memory consuming and lack of scalability. In this thesis, we will propose a two-tier music index structure which is an efficient and scalable approach for multi-feature music indexing. Our experimental results show that the new approach outperforms existing multi-feature index schemes.