Zaloguj się

Gotowe bibliografie tematyczne / Comparisons / Rozprawy doktorskie

Rozprawy doktorskie na temat „Comparisons”

Kliknij ten link, aby zobaczyć inne rodzaje publikacji na ten temat: Comparisons.

Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 11 marca 2023

Utwórz poprawne odniesienie w stylach APA, MLA, Chicago, Harvard i wielu innych

Wybierz rodzaj źródła:

Sprawdź 50 najlepszych rozpraw doktorskich naukowych na temat „Comparisons”.

Przycisk „Dodaj do bibliografii” jest dostępny obok każdej pracy w bibliografii. Użyj go – a my automatycznie utworzymy odniesienie bibliograficzne do wybranej pracy w stylu cytowania, którego potrzebujesz: APA, MLA, Harvard, Chicago, Vancouver itp.

Możesz również pobrać pełny tekst publikacji naukowej w formacie „.pdf” i przeczytać adnotację do pracy online, jeśli odpowiednie parametry są dostępne w metadanych.

Przeglądaj rozprawy doktorskie z różnych dziedzin i twórz odpowiednie bibliografie.

1

Buhrmann, Oswald G. "The comparison conundrum, social and counterfactual comparisons". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape10/PQDD_0003/MQ42133.pdf.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

2

Dias, Sofia Duarte Siva. "Predictive comparisons". Thesis, University of Sheffield, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.275027.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

3

Hutchinson, Michael. "Inter-laboratory comparisons". Thesis, University of Surrey, 1999. http://epubs.surrey.ac.uk/842963/.

Pełny tekst źródła

Streszczenie:

A number of alloy bars were manufactured to some very precise specifications. Certain scientific institutions then performed chemical analyses and made several measurements of the content of some chemical elements of interest. The measurements made on each of the alloy bars can be considered a set of repeated measurements. Modelling techniques for repeated measurements are now well established. Many of these techniques are based on the multivariate normal distribution with some specified mean and covariance structure. Modelling of the covariance structure is necessary so that efficient and meaningful inferences may be made about the mean structure. For the example of repeated measurements made on an alloy bar, the set of measurements is assumed to follow a multivariate normal distribution with a mean mu and a covariance structure Sigma. The choice of mu and Sigma is explored. Experiments which produce sets of repeated measurements can quite often result in a large amount of data being collected. This means that the use of statistical techniques to fit the model to the data can become computationally demanding. The use of maximum likelihood estimation is considered. Several aspects of constructing computationally efficient algorithms to maximise the likelihood function of the data are addressed. When the proposed model has been fitted to the data the suitability of the model and its assumptions are investigated. A score test is constructed to assess the correctness of the proposed covariance structure. Normal plots of the standardised residuals are used to assess other possible defects in the model, such as an incorrect assumption of normally distributed data. The work which has been carried out was motivated specifically by experiments where the set of repeated measurements came from a chemical analysis of an alloy material. It is the percentage content of a number of chemical elements which is of interest and the choice of statistical models was made with this in mind. However, it is demonstrated how the statistical techniques and models for the analysis of the chemical data may be used to analyse repeated measurements which arise from other kinds of experiments.

Style APA, Harvard, Vancouver, ISO itp.

4

胡錦賢 i Kam-yin Wu. "A linguistic study of interrogation in Cantonese: comparisions [sic. comparisons] with English". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1989. http://hub.hku.hk/bib/B3120952X.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

5

Sjolander, Morne Rowan. "Time series models for paired comparisons". Thesis, Nelson Mandela Metropolitan University, 2011. http://hdl.handle.net/10948/d1012858.

Pełny tekst źródła

Streszczenie:

The method of paired comparisons is seen as a technique used to rank a set of objects with respect to an abstract or immeasurable property. To do this, the objects get to be compared two at a time. The results are input into a model, resulting in numbers known as weights being assigned to the objects. The weights are then used to rank the objects. The method of paired comparisons was first used for psychometric investigations. Various other applications of the method are also present, for example economic applications, and applications in sports statistics. This study involves taking paired comparison models and making them time-dependent. Not much research has been done in this area. Three new time series models for paired comparisons are created. Simulations are done to support the evidence obtained, and theoretical as well as practical examples are given to illustrate the results and to verify the efficiency of the new models. A literature study is given on the method of paired comparisons, as well as on the areas in which we apply our models. Our first two time series models for paired comparisons are the Linear-Trend Bradley- Terry Model and the Sinusoidal Bradley-Terry Model. We use the maximum likelihood approach to solve these models. We test our models using exact and randomly simulated data for various time periods and various numbers of objects. We adapt the Linear-Trend Bradley-Terry Model and received our third time series model for paired comparisons, the Log Linear-Trend Bradley-Terry Model. The daily maximum and minimum temperatures were received for Port Elizabeth, Uitenhage and Coega for 2005 until 2009. To evaluate the performance of the Linear-Trend Bradley-Terry Model and the Sinusoidal Bradley-Terry Model on estimating missing temperature data, we artificially remove observations of temperature from Coega’s temperature dataset for 2006 until 2008, and use various forms of these models to estimate the missing data points. The exchange rates for 2005 until 2008 between the following currencies: the Rand, Dollar, Euro, Pound and Yen, were obtained and various forms of our Log Linear-Trend Bradley-Terry Model are used to forecast the exchange rate for one day ahead for each month in 2006 until 2008. One of the features of this study is that we apply our time series models for paired comparisons to areas which comprise non-standard paired comparisons; and we want to encourage the use of the method of paired comparisons in a broader sense than what it is traditionally used for. The results of this study can be used in various other areas, like for example, in sports statistics, to rank the strength of sports players and predict their future scores; in Physics, to calculate weather risks of electricity generation, particularly risks related to nuclear power plants, and so forth, as well as in many other areas. It is hoped that this research will open the door to much more research in combining time series analysis with the method of paired comparisons.

Style APA, Harvard, Vancouver, ISO itp.

6

Lim, Yeongyu. "Cognitive diagnostic model comparisons". Diss., Georgia Institute of Technology, 2015. http://hdl.handle.net/1853/53513.

Pełny tekst źródła

Streszczenie:

Cognitive diagnostic assessment (CDA) is a new theoretical framework that is designed to integrate cognitive psychology into measurement theories. The main purpose of CDA is to provide examinees with diagnostic information while traditional psychometric approaches focus on how latent variables are accurately measured. Many cognitive diagnostic models (CDM) have been developed for CDA. Three cognitive diagnostic models- namely the rule space method (RSM), the high-order deterministic inputs, noisy ‘and’ gate (HO-DINA) model, and the multidimensional latent trait model for diagnosis (MLTM-D) model were compared using simulated data and empirical data. For the simulation study, three methods of data generation are proposed. Each method was designed based on one of the three models. A total of 12 conditions was involved in the simulation study: 2 item designs X 2 level of test X 3 methods of data generation. The diagnostic results were compared by level of test difficulty, level of ability estimates, and level of dimensionality. The effect of number of attributes on accurate classification was also investigated. For the empirical study, a mathematics test data was used and the diagnostic results were compared.

Style APA, Harvard, Vancouver, ISO itp.

7

Neugebauer, Josephine [Verfasser], i Kai [Akademischer Betreuer] Sassenberg. "When social comparisons are (dys-)functional : The influence of social comparisons, knowledge awareness, and comparison motivation in collaborative learning / Josephine Neugebauer ; Betreuer: Kai Sassenberg". Tübingen : Universitätsbibliothek Tübingen, 2016. http://d-nb.info/1165309505/34.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

8

Sjölander, Morné Rowan. "SL-model for paired comparisons". Thesis, Nelson Mandela Metropolitan University, 2006. http://hdl.handle.net/10948/605.

Pełny tekst źródła

Streszczenie:

The method of paired comparisons can be found all the way back to 1860, where Fechner made the first publication in this method, using it for his psychometric investigations [4]. Thurstone formalised the method by providing a mathematical background to it [9-11] and in 1927 the method’s birth took place with his psychometric publications, one being “a law of comparative judgment” [12-14]. The law of comparative judgment is a set of equations relating the proportion of times any stimulus k is judged greater on a given attribute than any other stimulus j to the scales and discriminal dispersions of the two stimuli on the psychological continuum. The amount of research done for discrete models of paired comparisons is not a lot. This study develops a new discrete model, the SL-model for paired comparisons. Paired comparisons data processing in which objects have an upper limit to their scores was also not yet developed, and making such a model is one of the aims of this report. The SLmodel is thus developed in this context; however, the model easily generalises to not necessarily having an upper limit on scores.

Style APA, Harvard, Vancouver, ISO itp.

9

Coker, Audra Lee. "PET/CT shielding design comparisons". Texas A&M University, 2003. http://hdl.handle.net/1969.1/5836.

Pełny tekst źródła

Streszczenie:

The objective of this project was to compare two different methods of calculating dose through lead-shielded walls in the PET/CT suite at Scott & White Hospital in Temple, Texas. The ultimate goal was to see which of the two methods agreed with the actual physical measurements. Minimizing shielding needed in future suite designs would result in a possible reduction of structural as well as financial burden. Formulas and attenuation coefficients following the basic January 2006 AAPM guidelines were used to calculate unattenuated radiation through existing lead walls. The computer code MCNPX was used to simulate the leaded walls of the PET/CT suite and provide another set of results. These two sets of results were compared to doses gathered from OSL badges placed around the suite for a period of two months. For this type of problem, MCNPX proved to provide results that were inconsistent and unreliable. It was concluded that the traditional computational methods are the most reliable for designing shielding in a PET/CT suite.

Style APA, Harvard, Vancouver, ISO itp.

10

Nosenzo, Daniele. "Social preferences and social comparisons". Thesis, University of Nottingham, 2010. http://eprints.nottingham.ac.uk/11362/.

Pełny tekst źródła

Streszczenie:

Chapter 1 introduces the thesis providing an overview of the common themes and methods underlying this research. Chapter 2 reports an experiment that examines the characteristics of effective leaders in a leader-follower voluntary contributions game. We focus on two factors: leaders’ cooperativeness and their beliefs about followers’cooperativeness. We find that groups perform best when led by cooperatively inclined leaders, partly because they are intrinsically motivated to contribute more than non-cooperative leaders, partly because they are more optimistic about followers’ cooperativeness. Chapter 3 reports an experiment comparing sequential and simultaneous contributions to a public good in a quasi-linear two-person setting. As predicted, we find that overall provision may be lower under sequential than simultaneous contributions. However, we also find that the distribution of contributions is more equitable than predicted when the first-mover is predicted to free-ride, but not when the second-mover is predicted to free-ride. These results can be explained by second-movers’ willingness to punish free-riders, and unwillingness to reward first-movers who contribute. Chapter 4 investigates the impact of social comparisons on reciprocal relationships. Using a three-person gift- exchange game we study how employees’ reciprocity towards an employer is affected by pay comparison information (information about what co-workers earn) and effort comparison information (information about how co-workers perform). We find that pay comparison information does not affect reciprocity, while effort comparison information can influence reciprocal relationships in important ways. Chapter 5 also examines the impact of pay comparisons on effort behaviour. We compare effort in a treatment where co-workers’ wages are secret with effort in two ‘public wages’ treatments differing in whether co-workers’ wages are chosen by an employer, or are fixed exogenously by the experimenter. We find that pay comparisons are detrimental for effort, particularly when coworkers’ wages are exogenous. Chapter 6 summarises the findings of this research and concludes.

Style APA, Harvard, Vancouver, ISO itp.

11

Wright, Jamar E. "Temporal comparisons of Internet topology". Thesis, Monterey, California: Naval Postgraduate School, 2014. http://hdl.handle.net/10945/42757.

Pełny tekst źródła

Streszczenie:

Approved for public release; distribution is unlimited
Network science and its many applications provide insight into several genres, including biological, neural, logistical and technical problems. The study of complex networks extends to the Internet as well, merging graph theoretical concepts with those of computer science in an effort to perform Internet topology measurements, ultimately contributing to inferred Internet mapping. In this research, we examine whether the time of day is a factor when measuring Internet topology. In doing so, we employ graph measures, statistical measures, and complex network measures to compare graphs inferred from probes of the Internet via network monitors. Using comparisons of these measures, we did not find indication that time was a factor for the seven probing cycles examined in this study.

Style APA, Harvard, Vancouver, ISO itp.

12

Zoli, Claudio. "Inequality, welfare and poverty comparisons". Thesis, University of York, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.288182.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

13

Picciola, Emanuele R. (Emanuele Robert) 1974. "Nanotechnology : industry evolution and comparisons". Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/8437.

Pełny tekst źródła

Streszczenie:

Thesis (M.B.A.)--Massachusetts Institute of Technology, Sloan School of Management, 2002.
Includes bibliographical references (leaves 85-86).
Recent scientific progress has left virtually no question that nanotechnology will become a tremendous and significant part of worldwide culture. Nanotechnology is expected to become an active part of our daily interactions with people, machines, and the environment. This vision has been set forth by someone who many consider the founder of nanotechnology, Dr. Richard Feynman. In his 1959 lecture, "There is room at the bottom", Dr. Feynman challenged scientists and researchers to discover materials and devices that could be fabricated at the atomic/molecular scale. Since Dr. Feynman's speech a significant amount of progress and numerous investments have been made securing a future for nanotechnology. The question that remains is not if nanotechnology will develop into an industry, but when might it evolve and deliver on the promises so intrepidly set forth by researchers, corporations, and investors. The when question is debated many times over in today's popular press. For certain, no one is exactly sure what when really means and for what part of this industry. What this thesis is most interested in is the how. How will nanotechnology evolve? What factors will determine the industry structure that will influence the development of this industry? How large can we expect this industry to grow? What will be the key drivers for growth? How will different members of this industry facilitate the development of this science? In the last fifty years alone, the world has witnessed the remarkable formation of two very large, socially influential, and global industries: Semiconductors and Biotechnology. These industries have many similarities and dissimilarities to nanotechnology. By studying the key factors and developments in these industries different lessons and patterns can be extrapolated which may help answer some of the burning questions surrounding nanotechnology industry evolution. The results of this analysis do indeed conclude that there are many similarities between biotechnology and semiconductors to the current nanotechnology evolution. These similarities are not only in the underlying technology, but also in funding, intellectual property development, and firm composition. Building upon this foundation, the future potential nanotechnology industry size, as well as the number of firms, and critical growth factors have been identified and articulated.
by Emanuele R. Picciola.
M.B.A.

Style APA, Harvard, Vancouver, ISO itp.

14

Marshall, Emma Clare. "Statistical methods for institutional comparisons". Thesis, University of Cambridge, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.624324.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

15

Zhang, Xiangkai. "Regional Comparisons of Porcine Menisci". 京都大学 (Kyoto University), 2015. http://hdl.handle.net/2433/202805.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

16

Bishop, Daniel W. "GMSK Demodulation Methods and Comparisons". University of Akron / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=akron1216081075.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

17

楊良河 i Leung-ho Philip Yu. "Some multiple comparison selection procedures and their applications". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1993. http://hub.hku.hk/bib/B31233351.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

18

Yu, Leung-ho Philip. "Some multiple comparison selection procedures and their applications /". [Hong Kong] : University of Hong Kong, 1993. http://sunzi.lib.hku.hk/hkuto/record.jsp?B1345691X.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

19

Mpapela, Sinazo. "Models for forecasting residential property prices using paired comparisons". Thesis, Nelson Mandela Metropolitan University, 2014. http://hdl.handle.net/10948/5839.

Pełny tekst źródła

Streszczenie:

Residential real estate forecasting has become a part of the larger process of business planning and strategic management. Several studies of housing price trends recommend confining statistical analysis to repeated sales of residential property. This study presents an alternate methodology which combines information only on repeated residential sales regardless of the changes that has been made in the house in-between the sales. Additive and multiplicative models were used to forecast the residential property prices in Nelson Mandela Metropole. Data was collected from various sources and was reconciled into one data set for analysis through a process of data screening.

Style APA, Harvard, Vancouver, ISO itp.

20

Bodine, Christopher J. "Psychophysical comparisons in image compression algorithms". Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1999. http://handle.dtic.mil/100.2/ADA362726.

Pełny tekst źródła

Streszczenie:

Thesis (M.S. in Operations Research) Naval Postgraduate School, March 1999.
Thesis advisor(s): William K. Krebs, Lyn R. Whitaker. "March 1999". Includes bibliographical references (p. 97-99). Also available online.

Style APA, Harvard, Vancouver, ISO itp.

21

Lindqvist, Joakim. "Performance Comparisons of IP Problem Formulation". Thesis, Uppsala universitet, Institutionen för informationsteknologi, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-189024.

Pełny tekst źródła

Streszczenie:

When solving optimization problems, the importance of speed can not be emphasized enough for many organizations. One company encountered a major performance difference when solving a problem with the same integer programming solver, in two different locations. The difference was shown not to be caused by the environment of the solver, but rather a reformulation of the problem. However, the reformulation did not improve the performance of an expanded version of the problem. By analyzing and comparing the two versions one might be able to find the properties of a problem which enables the reformulation to reduce the solving time. This in turn can be used to identify for which problems the reformulation should be applied to increase the speed at which they are solved.

Style APA, Harvard, Vancouver, ISO itp.

22

Beauchamp, Michelle Lyn. "National comparisons of euthanasia opinion polls". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/MQ51685.pdf.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

23

Chen, Shengzao. "Global comparisons of earthquake source spectra". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/NQ58253.pdf.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

24

Wicker, Andrew White. "Interest-Matching Comparisons using CP-nets". NCSU, 2007. http://www.lib.ncsu.edu/theses/available/etd-12142006-120734/.

Pełny tekst źródła

Streszczenie:

The formation of internet-based social networks has revived research on traditional social network models as well as interest-matching, or match-making, systems. In order to automate or augment the process of interest-matching, we follow the trend of qualitative decision theory by using qualitative preference information to represent a user's interests. In particular, a common form of preference statements for humans is used as the motivating factor in the formalization of ceteris paribus preference semantics. This type of preference information led to the development of conditional preference networks (CP-nets). This thesis presents a method for the comparison of CP-net preference orderings which allows one to determine a shared interest level between agents. Empirical results suggest that distance measure for preference orderings represented as CP-nets is an effective method for determining shared interest levels. Furthermore, it is shown that differences in the CP-net structure correspond to differences in the shared interest levels which are consistent with intuition. A generalized Kemeny and Snell axiomatic approach for distance measure of strict partial orderings is used as the foundation on which the interest-matching comparisons are based.

Style APA, Harvard, Vancouver, ISO itp.

25

Collette, Kristin A. "Comparisons of structural designs in fire". Link to electronic thesis, 2007. http://www.wpi.edu/Pubs/ETD/Available/etd-050307-182832/.

Pełny tekst źródła

Streszczenie:

Thesis (M.S.) -- Worcester Polytechnic Institute.
Keywords: Office buildings; Steel beams; Lumped parameter method; Cardington Tests; Design fire curves . Includes bibliographical references (leaves 144-146).

Style APA, Harvard, Vancouver, ISO itp.

26

Maturi, Tahani. "Nonparametric predictive inference for multiple comparisons". Thesis, Durham University, 2010. http://etheses.dur.ac.uk/230/.

Pełny tekst źródła

Streszczenie:

This thesis presents Nonparametric Predictive Inference (NPI) for several multiple comparisons problems. We introduce NPI for comparison of multiple groups of data including right-censored observations. Different right-censoring schemes discussed are early termination of an experiment, progressive censoring and competing risks. Several selection events of interest are considered including selecting the best group, the subset of best groups, and the subset including the best group. The proposed methods use lower and upper probabilities for some events of interest formulated in terms of the next future observation per group. For each of these problems the required assumptions are Hill's assumption A(n) and the generalized assumption rc-A(n) for right-censored data. Attention is also given to the situation where only a part of the data range is considered relevant for the inference, where in addition the numbers of observations to the left and to the right of this range are known. Throughout this thesis, our methods are illustrated and discussed via examples with data from the literature.

Style APA, Harvard, Vancouver, ISO itp.

27

Dittrich, Regina, Brian Francis i Walter Katzenbeisser. "Temporal dependence in longitudinal paired comparisons". Department of Statistics and Mathematics, WU Vienna University of Economics and Business, 2008. http://epub.wu.ac.at/1452/1/document.pdf.

Pełny tekst źródła

Streszczenie:

This paper develops a new approach to the analysis of longitudinal paired comparison data, where comparisons of the same objects by the same judges are made on more than one occasion. As an alternative to other recent approaches to such data, which are based on Kalman filter- ing, our approach treats the problem as one of multivariate multinomial data, allowing dependence terms between comparisons over time to be incorporated. The resulting model can be fitted as a Poisson log-linear model and has parallels with the quadratic binary exponential distribution of Cox. An example from the British Household Panel Survey illustrates the approach. (author´s abstract)
Series: Research Report Series / Department of Statistics and Mathematics

Style APA, Harvard, Vancouver, ISO itp.

28

Gargani, A. "Poetic comparisons : how similes are understood". Thesis, University of Salford, 2014. http://usir.salford.ac.uk/31952/.

Pełny tekst źródła

Streszczenie:

In this thesis I develop a pragmatic account of how similes are understood within the framework of relevance theory (Sperber and Wilson, 1995). Similes, or ‘poetic comparisons’, (Achilles is like a lion) and non-poetic comparisons (Wasabi is like mustard) are understood in similar ways. While non-poetic comparisons communicate that A is like B in terms of a (relatively) determinate range of respects in which the comparison is taken to hold, poetic comparisons achieve relevance by virtue of weak implicatures which are evoked, in part, in pursuit of certain respects in which the comparison holds. However, the outcome of simile understanding does not necessarily involve deriving a determinate range of points of comparison as part of the content of the comparison. In these cases, the speaker/author simply communicates that the relevance of the comparison lies in the fact that two entities or activities are being compared and the hearer/reader has the responsibility for deciding where relevance lies. This account explains: (i) why certain comparisons achieve relevance in this way (why certain comparisons are poetic); (ii) why metaphors and similes, nonetheless, can achieve similar effects; (iii) why competing accounts (which tend to conflate metaphor and simile) are vulnerable to counterexamples; (iv) why qualifying similes (Achilles is a lot like a lion) and supplying additional linguistically-specified content which relates to potential points of comparison (Achilles is like a brave lion; Achilles is like a lion in the parched savannah) does not make a comparison less ‘poetic’; (v) why certain relationships between tenor and vehicle tend to obtain in similes but not in non-poetic comparisons; and (vi) how certain types of metaphor/simile interaction work.

Style APA, Harvard, Vancouver, ISO itp.

29

Pierson, William E. Jr. "Comparisons of scattering center extraction algorithms". The Ohio State University, 1993. http://rave.ohiolink.edu/etdc/view?acc_num=osu1098466124.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

30

Wu, Hao. "Performance comparisons of doubly-fed machines". Thesis, Northumbria University, 2013. http://nrl.northumbria.ac.uk/13337/.

Pełny tekst źródła

Streszczenie:

This research project aims at evaluating a conversion system based on the emerging Brushless Doubly Fed Reluctance Machine (BDFRM) through a comparative experimental study with a traditional and well established slip-ring counterpart, the Doubly Fed Induction Machine (DFIM). One of the main objectives is to establish whether this alternative machine is worthy of industrial consideration in variable speed applications with limited speed ranges (e.g. wind turbines, pump-like drives etc.) in terms of control, reliability, efficiency and power factor performance as major criteria. Such kind of work has not been reported in the open-literature to date and represents the main contribution of the project being undertaken. A conventional and widely used parameter-independent vector control (VC) scheme has been selected for the operation of both the machines using a shaft-position sensor. The VC algorithm has been simulated and implemented in real-time on state-of-the-art eZdsp development platform based on the TMS320F28335 Digital Signal Controller (DSC). The control code has been derived from a programme written in C++ using the corresponding compiler, the Code Composer Studio (CCS). Comprehensive computer simulations have been done in Matlab/Simulink using the parameters obtained by off-line testing of the DFIM and BDFRM prototypes, which have been built in the same stator frame for comparison purposes. The simulation results have been experimentally verified on two identical test rigs where a commercial 4-quadrant cage induction machine V/f drive has been used as a prime mover or load for either the DFIM or the BDFRM subject to their operating mode. The preliminary experimental results on two small-scale prototypes have shown that the BDFRM can achieve competitive performance to the similarly rated DFIM and as such should warrant further investigation and increasing interests of both academic and industrial communities as a potential large-scale wind generator or a pump drive.

Style APA, Harvard, Vancouver, ISO itp.

31

Lan, Fangming. "Filtering Redundant Features by Similarity Comparisons". Thesis, Uppsala universitet, Institutionen för informationsteknologi, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-328670.

Pełny tekst źródła

Streszczenie:

In the field of Biology, exposure to diseases is dependent on several factors which areintricately correlated. Statistical analyses of these diseases often suffer from too manyfactors generated, resulting in complexity of these analyses. In order to solve theseissues, we propose a program that would identify the correlated factors and thenremove some insignificant factors, thus reducing the total number of factors. As aresult, the efficiency of calculation will be improved. The new algorithms detailed hereare based on Apriori and Chi-square tests. They work by reducing the size of theinitial data. Consequently, two algorithms have been suggested and the insignificancefeatures in test dataset efficiently removed as well. It is evident that using reasonablealgorithms can help improve the efficiency and performance in statistical analyses.

Style APA, Harvard, Vancouver, ISO itp.

32

Chen, Shengzao Carleton University Dissertation Earth Sciences. "Global comparisons of earthquake source spectra". Ottawa, 2000.

Znajdź pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

33

Pierson, William E. "Comparisons of scattering center extraction algorithms /". Connect to this title online, 1993. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1098466124.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

34

Harper, John. "Oat Hay Variety Yield Comparisons, Coolidge". College of Agriculture, University of Arizona (Tucson, AZ), 1985. http://hdl.handle.net/10150/200525.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

35

Farr, C. R. "Nematocide Comparisons for Rootknot Nematode Control". College of Agriculture, University of Arizona (Tucson, AZ), 1986. http://hdl.handle.net/10150/219774.

Pełny tekst źródła

Streszczenie:

The 1985 and 1986 Cotton Reports have the same publication and P-Series numbers.
Preplant treatments for rootknot nematodes on sandy loam gave less yield response than in earlier years at the same Buckeye field location. Post emergence treatments on sandy loam at Waddell failed to give sufficient economic return even though lateral root infestation level was over 50 percent.

Style APA, Harvard, Vancouver, ISO itp.

36

Parsonson, Ian M. "Syphilis and AIDS historical and social comparisons /". Connect to this title online, 1992. http://tux.lib.deakin.edu.au/adt-VDU/public/adt-VDU20031118.111824/.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

37

Storey, Nathaniel R. "An aquaponic system component comparisons and applications /". Laramie, Wyo. : University of Wyoming, 2009. http://proquest.umi.com/pqdweb?did=1939351881&sid=1&Fmt=2&clientId=18949&RQT=309&VName=PQD.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

38

Biesheuvel, Egbertus Hendrikus Evert. "Many-to-one comparisons in stratified designs". [S.l. : s.n.], 2002. http://deposit.ddb.de/cgi-bin/dokserv?idn=968545149.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

39

Ross, Kirsty Mhairi. "Joyful expressions in infancy : cross-species comparisons". Thesis, University of Portsmouth, 2010. https://researchportal.port.ac.uk/portal/en/theses/joyful-expressions-in-infancy(abf8bc2b-2cfd-469c-ac84-251c7c1fd1d4).html.

Pełny tekst źródła

Streszczenie:

Joyful expressions of one-year-old infants were studied in naturalistic contexts in infants’ home environments. Chimpanzee infants (n = 7) and human infants from the Cameroon Nso community (n = 8) were studied in their own right and in comparison. Similar methodologies and the development of a single coding scheme allowed direct comparisons between the groups. The research aims to contribute to knowledge about 1) emotion socialisation; 2) the whole-body expression of emotions in infancy; 3) the evolutionary heritage of emotions; and 4) the functions of joyful emotions. Playful behaviours were analysed for play type, infant joy (facial, motor, and vocal1), play partners and their engagement, and matching of infant joy by play partners. The first study (Chapter 4) describes the play contexts of chimpanzee infants from two settings (Chester Zoo, UK, and Primate Research Institute (PRI), Japan), as there was little published quantitative data specific to one-year-old chimpanzees. Play contexts were similar across settings though the proportion of time spent in the different types of social play varied with more rough-and-tumble play at Chester Zoo (larger group, juveniles present) and more tickling by mothers at PRI. The second study (Chapter 5) describes the joyful expressions of chimpanzee infants. Facial and motor joy occurred at similar rates overall though the rate of facial joy was skewed towards social contact and tickling play to a greater degree than motor joy. Mothers elicited a particularly high rate of infant joy (often during tickling) but peers matched a greater proportion of infant joy (often during contact play). The third study (Chapter 6) describes the joyful. Vocal joy was analysed for human sample only expressions of human infants. Facial, motor, and vocal joy occurred at similar rates overall though rates of facial joy and vocal joy were skewed towards social communicative and rhythmic play to a greater degree than was motor joy. Play partners matched a greater proportion of infant joy during social communicative and rhythmic play and social object exchange than during other types of social play. The fourth study (Chapter 7) compares the joyful expressions of chimpanzee infants and human infants. The rate of facial joy was equivalent in both groups despite differences in the contexts of play, underlining the importance of joy to infant development in both species. Differences were evident in the rate of motor joy (higher in the human sample) and in matching of infant joy (marginally higher in the human sample, variation by play partners). The general discussion highlights key findings in relation to the socialisation of joy (e.g. the high rates of joy during play contexts which support social cohesion, the different roles of mothers and peers/older children in eliciting and responding to infant joy) and the whole body expression of joy (the distinctive patterns of facial, motor and vocal joy across social and solitary play contexts). Findings are discussed in relation to theories about the functions of joy.

Style APA, Harvard, Vancouver, ISO itp.

40

Parsonson, Ian Malcolm, i kimg@deakin edu au. "SYPHILIS AND AIDS: HISTORICAL AND SOCIAL COMPARISONS". Deakin University. School of Humanities, 1992. http://tux.lib.deakin.edu.au./adt-VDU/public/adt-VDU20031118.111824.

Pełny tekst źródła

Streszczenie:

Drawing on the literatures of history, sociology, epidemiology, and microbiology, this thesis compares syphillis with human immunodeficiency virus, with special reference to the social and historical factors likely to be relevant to the control or eradication of acquired imune dificiency syndrom (AIDS). The sudden appearance of a new disease causing suffering and death in a community, engenders apprehension and fear which is often manifested as hysteria against, and vilification of, those who have the disease. This fear is greatly increased should the disease be sexually-transmitted. Syphilis in a venereal form, occured in Europe toward the end of the 15th Century. Initially it was an acute, fulminating disease which rapidly spread through Europe and Asia. Attempts to control the disease have gone through periods of either partial successes or massive failures and have ended in frustration for the authorities. When the syndrome of acquired immune deficiency (AIDS) was first reported, it was seen in Western countries in homosexual men. However, as non-homosexual community members and children became infected, it became apparent to authorities that a pandemic was accurring. Within a few years, the disease was identified worldwide. Isolation of the virus (HIV-1), and development of test for detection of carriers, plus restoration of clean blood and blood-product supplies, have reassured the community to some extent. The history of syphilis shows that neither the epidemiological medical, nor the economic political approaches to disease control work, although there are positive aspects resulting from both. It is social responses that will offer the most hope in the long term for the control of AIDS and other sexually-transmitted diseases.

Style APA, Harvard, Vancouver, ISO itp.

41

Gemino, Andrew C. "Empirical comparisons of system analysis modeling techniques". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape7/PQDD_0015/NQ46346.pdf.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

42

Thorpe, Robert Samuel. "Comparisons of college presidencies private and public /". Access abstract and link to full text, 1989. http://0-wwwlib.umi.com.library.utulsa.edu/dissertations/fullcit/9015928.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

43

Svetoft, John. "Super-modular Textures : Comparisons in Practical Applications". Thesis, Högskolan på Gotland, Institutionen för speldesign, teknik och lärande, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:hgo:diva-1606.

Pełny tekst źródła

Streszczenie:

The purpose of this thesis is to compare the products of two different work flows in a practical environment. The work flows in question are those of building environments using super-modular textures versus the more conventional method of unique textures. The tests will try to establish whether or not the theory of the super-modular work flow holds up in practice, i.e. if the result is actually as optimized has the theory outlines. The data of interest is gathered through tests in the Unreal Development Kit, which is a free version of the commercial Unreal engine. Results are compiled into graphs in order to give a clear overview of the differences between the two products. The results show that in the context of the tests performed the super-modular workflow allocates less memory than what can be achieved using uniquely mapped assets and that the average draw calls remain the same regardless of method.

Style APA, Harvard, Vancouver, ISO itp.

44

Music, Vesna. "Comparisons and modelling of primary vacuum standards". Thesis, Brunel University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.299097.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

45

Zabsonre, Wendgloumdé Agnès. "Welfare comparisons when populations differ in size". Thesis, Université Laval, 2011. http://www.theses.ulaval.ca/2011/28253/28253.pdf.

Pełny tekst źródła

Streszczenie:

L’objectif principal de cette thèse est de faire des comparaisons sociales impliquant des populations de taille différente. Ceci est pertinent pour deux raisons. En premier lieu, l’évaluation des politiques publiques implique souvent des comparaisons de situations où le nombre d’individus diffère d’une situation à une autre. En second lieu, les fondements théoriques de l’évaluation sociale dans le cadre des populations de taille variable fournissent peu d’indications sur la façon dont les changements dans la taille et dans la distribution des populations peuvent être socialement évalués. Après avoir fait une revue de la littérature sur les problèmes de populations et particulièrement sur les questions liées à la taille et au bien-être des populations, et après avoir examiné comment évaluer socialement des populations de taille différente, nous utilisons l’utilitarisme généralisé de niveau critique comme fonction d’évaluation sociale. Cette fonction a des fondements éthiques satisfaisants et est appropriée pour l’évaluation sociale des populations de taille variable. Mais elle requiert l’usage d’une valeur du niveau critique, un paramètre clé dans cette approche. Nous proposons un cadre de dominance basé sur l’utilitarisme généralisé de niveau critique. Nous montrons comment cette dominance est reliée à la dominance stochastique en pauvreté. Ceci est présenté dans le premier essai. Dans le deuxième essai, nous développons un cadre théorique, normatif et statistique pour estimer des bornes inférieures et supérieures robustes des niveaux critiques sur lesquelles les distributions des populations peuvent être ordonnées. Nous illustrons les résultats théoriques en utilisant des données réelles du Canada tirées d’enquêtes auprès des ménages. Nous étendons les applications à une échelle nationale, régionale et mondiale. Les résultats indiquent de manière convaincante que la valeur de l’humanité peut être considérée comme ayant globalement augmenté entre 1990 et 2005, mais pas pour beaucoup de régions du monde. Ceci fait l’objet du troisième essai.
The main objective of this thesis is to make welfare comparisons involving different population sizes. This is relevant for two reasons. First, the evaluation of public policies often implies comparisons of situations where the number of individuals differs from one situation to another. Second, the theoretical foundations of social evaluation provide little measurement guidance on how changes in population size and population distribution can be socially evaluated. After a literature review on population problems and particularly questions related to population sizes and social well-being, and after discussing how variable populations are socially evaluated, we use critical-level generalized utilitarianism as a social evaluation function. This function exhibits ethically desirable foundations and is shown to be more convenient for comparing well-being between variable populations. But it requires a value of the critical level, a key parameter in this approach. We propose a dominance framework based on critical-level generalized utilitarianism. We show how this dominance is related to stochastic poverty dominance. This is presented in the first essay. In the second essay, we develop a theoretical, normative and statistical framework to estimate some robust lower and upper bounds of critical levels within which population distributions can be ordered. We illustrate our theoretical results by using real data from Canada’s household surveys. We extend the applications to national, regional and world scales. The results indicate that the value of humanity can be persuasively shown to have increased globally between 1990 and 2005, but not so for many of the world’s regions. This is done in the third essay.
Tableau d'honneur de la FÉS

Style APA, Harvard, Vancouver, ISO itp.

46

Amiss, Julie E. "Bayes factors : comparisons, simulation methods and influence". Thesis, University of Surrey, 1996. http://epubs.surrey.ac.uk/1014/.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

47

Zagefka, Hanna. "Comparisons and deprivation in ethnic minority settings". Thesis, University of Kent, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.404511.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

48

Watson, Robert J. "Data comparisons for spatially separated meteorological radars". Thesis, University of Essex, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.337180.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

49

Lu, Nadine Chi-mei 1965. "Radiometric sensitivity comparisons of multispectral imaging systems". Thesis, The University of Arizona, 1989. http://hdl.handle.net/10150/277036.

Pełny tekst źródła

Streszczenie:

Multispectral imaging systems provide much of the basic data used by the land and ocean civilian remote sensing community. There are numerous multispectral imaging systems which have been and are being developed. A common way to compare the radiometric performance of these sensors is to examine their noise equivalent change in reflectance, NEDeltarho. The NEDeltarho of a sensor is the reflectance difference that is equal to the noise in the recorded signal. In order to directly compare the sensors, calculations of the parameter being compared need to have a common basis. This thesis compares the noise equivalent change in reflectance of seven different multispectral imaging systems (AVHRR, AVIRIS, ETM, HIRIS, MODIS-N, SPOT-1/HRV, and TM) for a set of three atmospheric conditions (continental aerosol with 23 km visibility, continental aerosol with 5 km visibility, and a Rayleigh atmosphere), five values of ground reflectance (0.01, 0.10, 0.25, 0.50, and 1.00), a nadir viewing angle, and a solar zenith angle of forty-five degrees.

Style APA, Harvard, Vancouver, ISO itp.

50

Rossi, Mauro. "Interpersonal comparisons of utility : the epistemological problem". Thesis, London School of Economics and Political Science (University of London), 2009. http://etheses.lse.ac.uk/2740/.

Pełny tekst źródła

Streszczenie:

My doctorate thesis investigates a particularly controversial issue in both philosophy of economics and philosophy of mind, namely, the problem of interpersonal utility comparisons (IUCs henceforth). As I take utility to be a numerical representation of the intensity of individual preferences, IUCs are judgments about how different people's preferences compare in terms of strength. As factual judgments, IUCs appear to be either underdetermined by the empirical evidence or indeterminate. This casts doubt on whether or not we can have (scientific) knowledge of, or, at least, (scientifically) justified beliefs about, how different people's preferences compare in terms of strength. In general, IUCs can be justified if the assumption of interpersonal similarity, in one of its forms, can be vindicated. I consider two strategies, which attempt to vindicate this assumption by means of, respectively, an inference to the best explanation type of argument and a nativist argument. I argue that both strategies fail. These results suggest that preferences may be interpersonally incomparable with respect to the dimension of strength. I consider four 'possibility' arguments addressing this challenge. I argue that, although some of them may solve the conceptual problem concerning the interpersonal comparability of preference strengths, they all fail to solve the epistemological problem of IUCs. Nevertheless, I argue that a 'modest' transcendental argument shows that IUCs can, at least, be justified, provided that we embrace a coherentist view about the structure of epistemic justification.

Style APA, Harvard, Vancouver, ISO itp.

Oferujemy zniżki na wszystkie plany premium dla autorów, których prace zostały uwzględnione w tematycznych zestawieniach literatury. Skontaktuj się z nami, aby uzyskać unikalny kod promocyjny!