Dissertations / Theses: 'Methods of bioclimate evaluation'

1

Hall, Katherine C. "Didactic Evaluation Methods." Digital Commons @ East Tennessee State University, 2019. https://dc.etsu.edu/etsu-works/8290.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Lorentzen, Peter, and Johan Lindh. "Evaluation of EAP-methods." Thesis, Blekinge Tekniska Högskola, Sektionen för datavetenskap och kommunikation, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-4452.

Full text

Abstract:

Network administrators typically employ di erent methods for authenticating and authorizing the access to their networks. A exible and scalable network access method is needed to combat the ever increasing network ubiquity brought on by technological advancements. The IEEE 802.1x Port-Based Network Access is a technology that allows transparent authentication to a network. It uses EAP-methods in order to authenticate against a server. There are a lot of di erent EAP-methods to choose from, and they vary in complexity and security. This report will bring up the di erences between the most commonly used authentication methods regarding the authentication time depending on di erent delay and network load. Results showed that EAP-methods that are less complex take less time to perform authentication than their counterparts. When there is no delay, or a very small delay, this might not matter, but when the delay is higher complex EAP-methods take signi cantly longer time to perform the authentication process. This is very negative considering the nature of transparent authentication, and could lead to users becoming annoyed. A general formula for determining how long time an EAP-authentication process will take is presented.

APA, Harvard, Vancouver, ISO, and other styles

3

Cook, Helen Marie. "Methods of municipal fiscal evaluation." Thesis, University of British Columbia, 1986. http://hdl.handle.net/2429/26388.

Full text

Abstract:

This is an analysis of methods available for municipal fiscal evaluation. The study attempts to explain the selection of factors included in evaluation tools designed to guage municipal financial condition. It also attempts to explain how these factors are interpreted as municipal fiscal strengths and weaknesses. Among the consequences which can undermine municipal financial management are dwindling revenues, increasing service demands, and increasingly complex financial administration systems. The municipal fiscal evaluation literature provides information about the technical design possibilities as well as choices expressed in tools currently used. There are inconsistencies in the measurement of fiscal indicators as well as differences in the interpretation of results. Two basic approaches, comparison and case study, are discerned within the variety of tools found in the literature. However, that literature does not provide explicit reasons for choosing a specific evaluation approach. An inherent problem in municipal fiscal evaluation design is the conflict between public service objectives such as health and welfare and corporate objectives such as financial solvency and economic efficiency. Further investigation focuses on attempts in public finance theory to reconcile public and corporate objectives. The two mainstream public finance ideologies, Social Welfare and Public Choice, are found to parallel the comparative and case study evaluation approaches. A second conclusion relates the design of a municipal fiscal evaluation to the role it is intended to serve. Financial management requirements are not uniform across cities, nor are the political objectives of agencies doing evaluations. Sponsors tend to emphasize factors which reflect their own interpretation of financial problems or management requirements. In general, case study fiscal evaluations are best suited for use by municipalities, while the comparative approach can assist senior governments in ensuring the financial security of local governments.
Applied Science, Faculty of
Community and Regional Planning (SCARP), School of
Graduate

APA, Harvard, Vancouver, ISO, and other styles

4

Fevang, Rune, and Arne Bergene Fossaa. "Empirical evaluation of metric indexing methods." Thesis, Norwegian University of Science and Technology, Department of Computer and Information Science, 2008. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-8902.

Full text

Abstract:

Metric indexing is a branch of search technology that is designed for search non-textual data. Examples of this includes image search (where the search query is an image), document search (finding documents that are roughly equal) to search in high-dimensional Euclidean spaces. Metric indexing is based on the theory of metric spaces, where the only thing known about a set of objects is the distance between them (defined by a metric distance function). A large number of methods have been proposed to solve the metric indexing problem. In this thesis, we have concentrated on new approaches to solving these problems, as well as combining existing methods to create better ones. The methods studied in this thesis include D-Index, GNAT, EMVP-Forest, HC, SA-Tree, SSS-Tree, M-Tree, PM-Tree, M*-Tree and PM*-Tree. These have all been implemented and tested against each other to find strengths and weaknesses. This thesis also studies a group of indexing methods called hybrid methods which combines tree-based methods (like SA-Tree, SSS-tree and M-Tree), with pivoting methods (like AESA and LAESA). The thesis also proposes a method to create hybrid trees from existing trees by using features in the programming language. Hybrid methods have been shown in this thesis to be very promising. While they may have a considerable overhead in construction time,CPU usage and/or memory usage, they show large benefits in reduced number of distance computations. We also propose a new way of calculating the Minimal Spanning Tree of a graph operating on metric objects, and show that it reduces the number of distance computations needed.

APA, Harvard, Vancouver, ISO, and other styles

5

Navathe, Prabhaker Rao. "Evaluation of local stress-strain methods." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ30527.pdf.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Baeten, Cornelius Gerardus Maria Ignatius. "Haemorrhoids evaluation of methods of treatment /." Assen [etc.] : Maastricht : Van Gorcum ; University Library, Maastricht University [Host], 1985. http://arno.unimaas.nl/show.cgi?fid=5293.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Mansfield, Rachel. "The evaluation of land remediation methods." Thesis, Nottingham Trent University, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.401471.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Larsson, Eva B. "Evaluation methods among corporate travel managers /." Online version of thesis, 1993. http://hdl.handle.net/1850/11582.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Krondorf, Marco. "Analytical methods for multicarrier performance evaluation /." Dresden : Vogt, 2009. http://d-nb.info/995433496/04.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Hedberg, Lundblad Louise, and Anna Lund. "Comparison of Fatigue Life Evaluation Methods." Thesis, KTH, Hållfasthetslära, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-298345.

Full text

Abstract:

The aim of this thesis is to investigate a selected set of fatigue life calculation methods and evaluate if they are suitable for fatigue life estimation of truck components at Scania. Failure due to fatigue can be cause by road induced vibrations, which is an inevitable phenomenon trucks are exposed to. By estimating when and where these components will fail, they can be designed to reduce the amount of failure per vehicle. Three types of fatigue life calculation methods, namely equivalent stress methods, critical plane methods and spectral methods, have been evaluated. These are methods for calculating fatigue life in both the time domain and the frequency domain. The chosen calculation methods have been evaluated based on their sensitivity to input parameters, their accuracy on predicting fatigue life and their ability to find the critical areas where the components are most likely to fail. The methods have also been compared to a method already implemented at Scania. To evaluate the methods, two different components were used. The first component was designed to give a multiaxial stress state and the other was a real truck component where fatigue data had been collected from a shake rig test at Scania. It was found that all investigated methods were successful in finding critical areas where failure will occur. However, the resulting estimated fatigue life had a very low accuracy. To draw any conclusions about the accuracy of the fatigue life estimations, a model that better reflects the dynamics of the real truck component is needed. Therefore, the conclusion is that the chosen methods can be used for finding critical areas in a component but not to determine the absolute time to failure for the model used. However, the method already implemented at Scania was equally successful in finding the critical areas and it has a much shorter computational time than the methods in the time domain. Since it is already implemented and used, the Scania method is recommended for the purpose of finding the critical areas of a component. A sensitivity study was conducted in order to investigate the influence of a variation of material parameters on the fatigue life calculated with the different methods. This study showed that the SN-curve parameters are important for the resulting fatigue life of methods that consider the endurance limit, and, therefore, that the choice of SN-curve is important. Since the road induced vibrations in this study caused load signals where the majority of the cycles were found below the endurance limit, methods that account for the endurance limit have to be used for calculations on components experiencing similar conditions. Furthermore, it was found that the resulting stress signal from the FE-analysis using input data from the shake rig test was non-Gaussian, this makes the results from all the chosen frequency domain methods invalid. To use these methods, they need to be extended to consider non-Gaussian signals.
Syftet med detta examensarbete är att undersöka ett antal utvalda metoder för utmattningsberäkning och utvärdera om dessa är lämpliga för att uppskatta livslängden på lastbilskomponenter hos Scania. Haveri på grund av utmattning kan orsakas av vibrationer från vägen, ett fenomen som påverkar komponenter på lastbilar. Genom att uppskatta när och var dessa komponenter går sönder kan de konstrueras för att minska antalet haverier. Olika typer av metoder för utmattningsberäkning i både tidsdomänen och frekvensdomänen har utvärderats. Dessa inkluderade ekvivalenta spännings-metoder, kritiska plan-metoder samt spektrala metoder. Metoderna har utvärderats med avseende på deras känslighet för variation i materialparametrar, hur den beräknade livslängden skiljer sig mot verkliga tester och hur bra de är på att hitta de kritiska områdena på en lastbilskomponent. Detta har även jämförts mot en beräkningsmetod som redan används på Scania. Två olika komponenter användes för att utvärdera metoderna. En av komponenterna var designad för att ge ett multiaxiellt spänningstillstånd och en var en riktig lastbilskomponent med data uppmätt från ett skaktest på Scania. Alla studerade metoder fann de kritiska områdena där utmattningsbrott riskerar att uppstå. Däremot visade det sig att beräkningsmetoderna inte lyckades estimera livslängder som låg i närheten av de som uppmättes under testet i skakriggen. En mer verklighetsnära modell vilken bättre motsvarar de dynamiska egenskaperna av systemet behövs för att kunna dra en slutsats om modellernas träffsäkerhet gällande estimeringen av livslängden. För ändamålet att hitta kritiska områden rekommenderas metoden som redan används hos Scania, eftersom denna var lika framgångsrik att hitta dessa, men gjorde det på en avsevärt kortare tid. Därutöver identifierades att spänningssignalen från FE-analysen, där indata från skakriggen användes, inte var gaussisk. Detta innebär att signalen inte uppfyller kraven för de spektrala metoderna och därmed att resultaten från beräkningarna på lastbilskomponenten inte går att använda för att dra några slutsatser. Känslighetsanalysen visade att de metoder som tar hänsyn till utmattningsgränsen är känsliga för ändringar i SN-parametrar. Detta beror på att många cykler, för det studerade lastfallet, låg nära utmattningsgränsen och att antalet cykler som ingick i beräkningarna därför påverkades stort av SN-parametrarna. Eftersom de vibrationer som uppstår då lastbilar framförs på vägar kan ge upphov till många cykler med amplituder nära utmattningsgränsen bör endast metoder som kan ta hänsyn till utmattningsgränsen användas vid dessa fall.

APA, Harvard, Vancouver, ISO, and other styles

11

Olsson, Magnus. "Efficiency Evaluation of SimulatedUSAR Control Methods." Thesis, KTH, Skolan för datavetenskap och kommunikation (CSC), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-136405.

Full text

Abstract:

This essay details a 3D simulation of a number of control methods used for maneuvering of teleoperated USAR robots. The implementation was produced in the Unity3D engine. The simulation implemented different variations on field-ofview angle, turning algorithms, and camera view perspectives. An evaluation using volunteer test operators was conducted and discussed. The sample size was too small to draw any definitive conclusions. Further testing is advised.
Denna uppsats behandlar en 3D-simulering samt användartester av flera olika kontrollmetoder som används vid fjärrstyrning av obemannade räddningsrobotar. Implementationen skapades med Unity3D-plattformen. De styrmetoder som testades var olika stora synfältsvinklar på kameran, olika algoritmer för att styra robotens svängning, samt olika kameraperspektiv. Användartester med frivilliga testförare genomfördes och diskuteras. Provstorleken var för liten för att kunna dra några definitiva slutsatser. Ytterligare tester rekommenderas.

APA, Harvard, Vancouver, ISO, and other styles

12

Sohl, Michael. "Comparing two heuristic evaluation methods and validating with usability test methods : Applying usability evaluation on a simple website." Thesis, Linköpings universitet, Institutionen för datavetenskap, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-150468.

Full text

Abstract:

In this thesis, an IT company asked for a tool for improving some aspects of daily work for employees working with customer support. A web-site was constructed for this purpose, and development was steered by applying usability evaluation methods in an iterative manner. These methods were combined with the approach of following the guidelines of user-centered design. The aim was to see if an increase of user-satisfaction towards the user-interface could be measured between iterations.Another significant question that was central to the study was the comparison between the industry-leading Nielsen’s heuristics and Gerhardt-Powals principles. Only one previous study was found making this comparison which made it interesting to see if the same result would be reached in this study.

APA, Harvard, Vancouver, ISO, and other styles

13

DeBoer, John Raymond. "Evaluation Methods for Porous Silicon Gas Sensors." Thesis, Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/4971.

Full text

Abstract:

This study investigated the behavior of porous silicon gas sensors under exposure to CO, NO, and NH3 gas at the part per million level. Parameters of interest in this study included the electrical, environmental, and chemi-resistive performance associated with various porous silicon morphologies. Based upon the variability of preliminary results, a gas pulsing method was combined with signal processing in order to analyze small impedance changes in an environment of substantial noise. With this technique, sensors could be effectively screened and characterized. Finally this method was combined with various post-treatments in order to improve the sensitivity and selectivity of individual sensors.

APA, Harvard, Vancouver, ISO, and other styles

14

Geiman, Justin Aaron. "Evaluation of smoke detector response estimation methods." College Park, Md. : University of Maryland, 2003. http://hdl.handle.net/1903/113.

Full text

Abstract:

Thesis (M.S.) -- University of Maryland, College Park, 2003.
Thesis research directed by: Dept. of Fire Protection Engineering. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

APA, Harvard, Vancouver, ISO, and other styles

15

Nyberg, Peter. "Evaluation of two Methods for Identifiability Testing." Thesis, Linköping University, Department of Electrical Engineering, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-51293.

Full text

Abstract:

This thesis concerns the identifiability issue; which, if any, parameters can be deduced from the input and output behavior of a model? The two types of identifiability concepts, a priori and practical, will be addressed and explained. Two methods for identifiability testing are evaluated and the result shows that the two methods work well if they are combined. The first method is for a priori identifiability analysis and it can determine the a priori identifiability of a system in polynomial time. The result from the method is probabilistic with a high probability of correct answer. The other method takes the simulation approach to determine whether the model is practically identifiable. Non-identifiable parameters manifest themselves as a functional relationship between the parameters and the method uses transformations of the parameter estimates to conclude if the parameters are linked. The two methods are verified on models with known identifiability properties and then tested on some examples from systems biology. Although the output from one of the methods is cumbersome to interpret, the results show that the number of parameters that can be determined in practice (practical identifiability) are far fewer than the ones that can be determined in theory (a priori identifiability). The reason for this is the lack of quality, noise and lack of excitation, of the measurements.

Fokus i denna rapport är på identifierbarhetsproblemet. Vilka parametrar kan unikt bestämmas från en modell? Det existerar två typer av identifierbarhetsbegrepp, a priori och praktisk identifierbarhet, som kommer att förklaras. Två metoder för identifierbarhetstestning är utvärderade och resultaten visar på att de två metoderna fungerar bra om de kombineras med varandra. Den första metoden är för a priori identifierbarhetsanalys och den kan avgöra identifierbarheten för ett system i polynomiell tid. Resultaten från metoden är slumpmässigt med hög sannolikhet för ett korrekt svar. Den andra metoden använder sig av simuleringar för att avgöra om modellen är praktiskt identifierbar. Icke-identifierbara parametrar yttrar sig som funktionella kopplingar mellan parametrar och metoden använder sig av transformationer av parameterskattningarna för att avgöra om parametrarna är kopplade. De två metoderna är verifierade på modeller där identifierbarheten är känd och är därefter testade på några exempel från systembiologi. Trots att resultaten från den ena metoden är besvärliga att tolka visar resultaten på att antalet parametrar som går att bestämma i verkligheten (praktiskt identifierbara) är betydligt färre än de parametrar som kan bestämmas i teorin (a priori identifierbara). Anledningen beror på brist på kvalitet, både brus och brist på excitation, i mätningarna.

APA, Harvard, Vancouver, ISO, and other styles

16

Chen, Yinglin. "Image analysis methods for paper formation evaluation." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0013/MQ34128.pdf.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Rebovich, Andrew J. "An evaluation of statewide truck forecasting methods." Morgantown, W. Va. : [West Virginia University Libraries], 2004. https://etd.wvu.edu/etd/controller.jsp?moduleName=documentdata&jsp%5FetdId=3315.

Full text

Abstract:

Thesis (M.S.)--West Virginia University, 2004.
Title from document title page. Document formatted into pages; contains viii, 111 p. Includes abstract. Includes bibliographical references (p. 109-111).

APA, Harvard, Vancouver, ISO, and other styles

18

Maier, Michael. "Three Essays on Semiparametric Econometric Evaluation Methods." [S.l. : s.n.], 2008. http://nbn-resolving.de/urn:nbn:de:bsz:352-opus-56856.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Booth, Derrick W. "An evaluation of industrial ventilation troubleshooting methods /." Thesis, Connect to this title online; UW restricted, 1998. http://hdl.handle.net/1773/10105.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Perkins, Crysta. "A Comparative Evaluation of Functional Analytic Methods." Thesis, University of North Texas, 2018. https://digital.library.unt.edu/ark:/67531/metadc1157622/.

Full text

Abstract:

The individual functional analysis (FA) is the most widely used method to identify variables that influence the occurrence of problem behavior. Researchers often modify the FA after the analysis reveals undifferentiated responding. The interview-informed synthesized contingency analysis (IISCA) is one of the most substantial variations of the FA that builds upon the FA modifications. We evaluated the use of the two different functional analytic methods, the FA and IISCA, and the subsequent function-based treatment to reduce problem behavior for three children with autism spectrum disorder (ASD). The individual FA and the IISCA demonstrated differentiated responding for all participants. The treatment based on the results from the traditional FA was effective for all children. We discuss the implications of these findings.

APA, Harvard, Vancouver, ISO, and other styles

21

Leão, Bruno Paes. "Failure prognosis methods and offline performance evaluation." Instituto Tecnológico de Aeronáutica, 2011. http://www.bd.bibl.ita.br/tde_busca/arquivo.php?codArquivo=1970.

Full text

Abstract:

The capability of predicting failure events of systems and components can provide benefits in equipment operation and maintenance. For this reason, the subject of failure prognosis is gaining greater attention from academia and industry over the last years. This work presents novel contributions related to the development and performance evaluation of failure prognosis solutions. One important step in failure prognosis is the estimation of the health state of the monitored equipment and its trend. Here, Sigma-Point Kalman Filter (SPKF) algorithms are employed for this purpose and their performance is compared to Particle Filter (PF) algorithms which are commonly cited in literature for this kind of application. Once the health state and its trend are estimated, in order to proceed with the failure prognosis, it is necessary to use this information to predict the remaining useful life (RUL) of the equipment. The RUL estimate is commonly yielded on the form of a probability distribution. A novel method, based on the Unscented Transform (UT), is presented and evaluated for this purpose. Results indicate that this approach may provide benefits when compared to the usual Monte Carlo based method. Finally, after a failure prognosis solution is developed, it is necessary to adequately evaluate its performance. This work also comprises the proposition of a novel method for such assessment, based on the use of the Probability Integral Transform (PIT). Such new method provides a measure of how adequately the proposed RUL probability distributions fit the available set of ground truth validation data. Also, additional proposed features make it possible to take into consideration the impact of the size of the validation data set into the uncertainty of the resulting metrics.

APA, Harvard, Vancouver, ISO, and other styles

22

Leenders, Nicole Y. J. M. "Evaluation of methods to assess physical activity /." The Ohio State University, 1998. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487949150072342.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Ivarsson, Magnus. "Evaluation of 3D MRI Image Registration Methods." Thesis, Linköpings universitet, Datorseende, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-139075.

Full text

Abstract:

Image registration is the process of geometrically deforming a template image into a reference image. This technique is important and widely used within thefield of medical IT. The purpose could be to detect image variations, pathologicaldevelopment or in the company AMRA’s case, to quantify fat tissue in variousparts of the human body.From an MRI (Magnetic Resonance Imaging) scan, a water and fat tissue image isobtained. Currently, AMRA is using the Morphon algorithm to register and segment the water image in order to quantify fat and muscle tissue. During the firstpart of this master thesis, two alternative registration methods were evaluated.The first algorithm was Free Form Deformation which is a non-linear parametricbased method. The second algorithm was a non-parametric optical flow basedmethod known as the Demon algorithm. During the second part of the thesis,the Demon algorithm was used to evaluate the effect of using the fat images forregistrations.

APA, Harvard, Vancouver, ISO, and other styles

24

Budiastra, I. Wayan. "Optical Methods for Quality Evaluation of Fruits." Kyoto University, 1998. http://hdl.handle.net/2433/182429.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Akiba, Yasuhiro. "Automatic evaluation methods for machine translation systems." 京都大学 (Kyoto University), 2005. http://hdl.handle.net/2433/144795.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Karlsson, Fiona. "Assessing usability evaluation methods for smartwatch applications." Thesis, KTH, Skolan för datavetenskap och kommunikation (CSC), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-189033.

Full text

Abstract:

Though there have been studies exploring usability evaluation methods for mobile applications, there is little documented research comparing evaluation methods for smartwatch applications. The purpose of this study was to explore how usability evaluation of smartwatch applications can be conducted. This was done by discussing what usability attributes are appropriate for the evaluation of smartwatch applications and by exploring what unique insights, strengths and weaknesses the results of the different methods of usability evaluation offer. As there are many different methods that could have been explored, after interviewing four user experience designers, the decision to focus on context and type of evaluator was made. Four types of tests were chosen that matched these variables: heuristic walkthrough, heuristic contextual walkthrough, laboratory test with end users, and in-situ tests with end users. A total of 18 participants were recruited and the results showed that the heuristic walkthrough was the most effective in terms of identifying the most and highest severity usability issues in the least amount of time. In general, the expert-based evaluations fared better than the user-based ones, revealing higher severity, more frequent, and most unique usability issues. Meanwhile, the in-situ tests revealed the least number of usability issues, as well as the least severe ones. Furthermore, the interviews and usability testing suggest that readability and comprehensibility are legitimate usability attributes to consider for smartwatch application usability evaluation.

APA, Harvard, Vancouver, ISO, and other styles

27

Cameron, Maxwell Hugh 1943. "Statistical evaluation of road trauma countermeasures." Monash University, Dept. of Mathematics and Statistics, 2000. http://arrow.monash.edu.au/hdl/1959.1/7943.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Liao, Hongjing. "Reporting Credibility in Educational Evaluation Studies that Use Qualitative Methods: A Mixed Methods Research Synthesis." Ohio University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1426115203.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Beaudry, Claudia. "Evaluation of drying methods on osmotically dehydrated cranberries." Thesis, McGill University, 2001. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=32756.

Full text

Abstract:

Since cranberry skin is thick and has low porosity, skin pretreatments were considered before drying in order to facilitate water diffusion. Mechanical and chemical pretreatments were considered, by cutting the fruits in half, by making pin holes in each cranberry, and by dipping the fruits in an alkaline solution.
A second pretreatment seemed necessary when drying cranberries in order to reduce their tartness. Cranberries were osmotically dehydrated, by immersing them in osmotic solutions of sucrose or high fructose corn syrup.
Once the pretreatment conditions were selected, four drying methods were tested on the pretreated cranberries. These methods included hot air drying, freeze-drying, vacuum drying and a combination of hot air and microwaves. A quality evaluation of the dried samples was also performed, including evaluation of overall appearance, taste, color, water activity, rehydration capacity and texture. (Abstract shortened by UMI.)

APA, Harvard, Vancouver, ISO, and other styles

30

Eriksson, Jens. "Evaluation of Hardware Test Methods for VLSI Systems." Thesis, Linköping University, Department of Electrical Engineering, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-239.

Full text

Abstract:

The increasing complexity and decreasing technology feature sizes of electronic designs has caused the challenge of testing to grow over the last decades. The purpose of this thesis was to evaluate different hardware test methods/approaches based on their applicability in a complex SoC design. Among the aspects that were investigated are test implementation effort, test efficiency and the performance penalties implicated by the test.

This report starts out by presenting a general introduction to the basics of hardware testing. It then moves on to review available standards and methodologies. In the end one of the more interesting methods is investigated through a case study. The method that was chosen for the case study has been implemented on a DSP, and is rather new and not as prolific as many of the standards discussed in the report. This type of method appears to show promising results when compared to more traditional ones.

APA, Harvard, Vancouver, ISO, and other styles

31

Hindié, Fares. "Evaluation of existing bridges using advanced reliability methods." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0031/MQ64226.pdf.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

Frohm, Anna. "Patellar tendinopathy : on evaluation methods and rehabilitation techniques /." Stockholm, 2006. http://diss.kib.ki.se/2006/91-7140-994-7/.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Randtke, Edward Alexander. "Development and Evaluation of Exchange Rate Measurement Methods." Diss., The University of Arizona, 2013. http://hdl.handle.net/10150/314652.

Full text

Abstract:

Exchange rate determination allows precise modeling of chemical systems, and allows one to infer properties relevant to tumor biology such as enzyme activity and pH. Current exchange rate determination methods found via Contrast Enhanced Saturation Transfer agents are not effective for fast exchanging protons and use non-linear models. A comparison of their effectiveness has not been performed. In this thesis, I compare the effectiveness of current exchange rate measurement methods. I also develop exchange rate measurement methods that are effective for fast exchanging CEST agents and use linear models instead of non-linear models. In chapter 1 I review current exchange rate measurement methods. In chapter 2 I compare several of the current methods of exchange rate measurement, along with several techniques we develop. In chapter 3 I linearize the Quantifying Exchange through Saturation Transfer (QUEST) measurement method analogously to the Omega Plot method, and compare its effectiveness to the QUEST method. In chapter 4, I compare the effectiveness of current exchange rate theories (Transition State Theory and Landau-Zener theory) in the moderate coupling regime, and propose our own combined Eyring-Landau-Zener theory for this intermediate regime. In chapter 5 I discuss future directions for method development and experiments involving exchange rate determination.

APA, Harvard, Vancouver, ISO, and other styles

34

Pettitt, Michael Andrew. "Visual demand evaluation methods for in-vehicle interfaces." Thesis, University of Nottingham, 2008. http://eprints.nottingham.ac.uk/10436/.

Full text

Abstract:

Advancements in computing technology have been keenly felt in the automotive industry. Novel in-car systems have the potential to substantially improve the safety, efficiency and comfort of the driving experience. However, they must be carefully designed, so their use does not dangerously distract drivers from fundamental, safety-critical driving tasks. Distraction is a well-established causal factor in road accidents. A concern is that the introduction of new in-vehicle technology may increase exposure to distraction, and lead to an increase in distraction-related accidents. The range of systems often termed In-Vehicle Information Systems (IVIS), encompassing navigation and entertainment systems, in-car email and Internet, are the focus of this thesis, since they are commonly associated with long tasks that are not considered fundamentally relevant to driving. A variety of Human-Computer Interaction (HCI) and Human Factors methods has been employed to assess the potential distraction of IVIS task engagement. These include on-road evaluations, driving simulator studies, and surrogate methods, such as peripheral detection tasks and static task time assessments. The occlusion technique is one such surrogate, where task performance is assessed under intermittent vision conditions. Participants complete a task with 1.5-second vision periods, followed by a period where their vision is occluded. In this way, the technique evaluates how visually demanding a task is, mimicking the behaviour of glancing to and from the forward road scene when driving and performing IVIS tasks. An evaluation of the technique's validity is presented. Sixteen participants performed two tasks on two systems under three conditions: static (full-vision), static (occlusion), and, whilst driving. Results confirmed other research, concluding that the technique is valid. However, the method's assessment through user-trials based on measures of human performance is problematic. Such trials require robust, reliable prototype systems, and can therefore only take place in later design stages. Consequently, the economic effectiveness of the technique is questionable. The keystroke-level model (KLM), which predicts task times for error-free performance by expert users in routine tasks, provides an alternative quantitative assessment method to user-trials. Tasks are decomposed into their most primitive actions, termed operators, which are associated with empirically assessed time values. These values are then summed to predict performance times. An evaluation of the technique in a vehicle environment is presented; twelve participants performed eleven tasks on two in-car entertainment systems, and task times were compared with KLM predictions. Results demonstrate the technique remains valid beyond its original, desktop computing based context. However, the traditional KLM predicts static task time only, and an extended procedure is required to consider occluded task performance. Two studies are presented, seeking to extend the KLM in order to model task performance under the interrupted vision conditions of occlusion trials. In the first, predictions of occlusion metrics are compared with results from the earlier occlusion assessment. In the second, twelve participants performed three tasks on two IVIS systems under occlusion conditions. Results were subsequently compared with predicted values. Both studies conclude that the extended KLM approach produces valid predictions of occlusion methods, with error rates generally within 20% of observed values, in line with expectations for KLM predictions. Subsequently, a case study is presented, to demonstrate the technique's reliability. The results of an independent occlusion study of two IVIS tasks are compared with predictions made by a HCI expert trained in the application of the extended KLM. Error rates for this study were equally low, leading to the conclusion that the extended KLM appears reliable, though further studies are required. It is concluded that the extended-KLM technique is a valid, reliable and economical method for assessing the visual demand of IVIS tasks. In contrast to many user-trial methods, the technique can be applied in early design stages. In addition, future work areas are identified, which could serve to further enhance the validity, reliability and economy of the technique. These include, automating the extended KLM procedure with a software tool, and, the development of new cognitive and physical operators, and new assumptions, specific to IVIS and/or occlusion conditions. For example, it will be useful to develop new cognitive operators that consider the time taken to visually reorient to complex displays following occluded periods.

APA, Harvard, Vancouver, ISO, and other styles

35

Lezcano, Giménez Belén. "Piano Logistics : Concept Development and Evaluation of Methods." Thesis, KTH, Maskinkonstruktion (Inst.), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-176883.

Full text

Abstract:

Transporting pianos is not an easy task, as they are as valuable and delicate as heavy and bulky. The most extended methods seem to have room for improvements, from maneuverability aspects to worker’s ergonomics. This project aimed to develop an innovative concept that satisfies the needs of both piano owners and moving companies through an organized concept development process. The methodology and tools were selected consciously to fit the problem and reviewed afterwards for learning purposes. Ideation and selection methods were systematically applied to come up with the proposed concept, which was improved further in SolidEdge ST4. Finally, some recommendations for future development of the product were suggested.
Att transportera pianon är ingen en lätt uppgift. De är såväl värdefulla och känsliga som tunga och skrymmande. De främst använda metoderna kan förbättras, från manövreringsaspekter till arbetarens ergonomi. Detta projekt syftar till att utveckla ett innovativt koncept som motsvarar både pianoägarens och flyttföretagens behov, genom en organiserad konceptutvecklingsprocess. Metoder och verktyg valdes medvetet för att passa problemet, och granskades därefter i utbildningssyfte. Konceptgenerations- och selektionsmetoder tillämpades systematiskt för att komma fram till det föreslagna konceptet, vilket ytterligare förbättrades i SolidEdge ST4. Slutligen förelås några rekommendationer för framtida utveckling av produkten.

APA, Harvard, Vancouver, ISO, and other styles

36

Sven, Ahlberg. "Evaluation of Different Radio-Based Indoor Positioning Methods." Thesis, Linköpings universitet, Kommunikationssystem, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-107702.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Ahlberg, Sven. "Evaluation of Different Radio-Based Indoor Positioning Methods." Thesis, Linköpings universitet, Institutionen för systemteknik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-107009.

Full text

Abstract:

Today, positioning with GPS and the advantages this entails are almost infinitive, which means that the technology can be utilized in a variety of applications. Unfortunately, there exists a lot of limitations in conjunction with the signals from the GPS can’t reach inside e.g. buildings or underground. This means that an alternative solution that works indoors needs to be developed. The report presents the four most common radio-based technologies, Bluetooth,Wi-Fi, UWB and RFID, which can be used to determine a position. These all have different advantages in cost, accuracy and latency, which means that there exist a number of different applications. The radio-based methods use the measurement techniques, RSSI, TOA, TDOA, Cell-ID, PD or AOA to gather data. The choice of measurement technique is mainly dependent of which radio-based method being used, since their accuracy depends on the quality of the measurements and the size of the detection area, which means that all measurement techniques have different advantages and disadvantages. The measurement data is processed with one of the positioning methods, LS, NLS, ML, Cell-ID, WC or FP, to estimate a position. The choice of positioning method also depends on the quality of the measurements in combination with the size of the detection area. To evaluate the different radio-based methods together with measurement techniques and positioning methods, accuracy, latency and cost are being compared. This is used as the basis for the choice of positioning method, since a general solution can get summarized by finding the least expensive approach which can estimate an unknown position with sufficiently high accuracy.

APA, Harvard, Vancouver, ISO, and other styles

38

Levine, Nicholas D. "Standardizing methods for weapons accuracy and effectiveness evaluation." Thesis, Monterey, California: Naval Postgraduate School, 2014. http://hdl.handle.net/10945/42674.

Full text

Abstract:

Approved for public release; distribution is unlimited
The Joint Technical Coordinating Group for Munitions Effectiveness desires a standardized toolbox and methodologies for evaluating weapons accuracy. Using statistical distributions, a method is presented for both unguided and Global Positioning System-guided munitions. The statistics used to describe a sample of weapons firings will not only describe the weapons’ accuracy, but will also be utilized by the Joint Weaponeering System to calculate the weapons’ effectiveness against specified targets. Since the precision of the inputs and statistics used to describe the accuracy of the weapons is sensitive, it is imperative that the inputs are accurately modeled as they can lead to drastically different effectiveness results. Analysts must also carefully consider the assumptions used in the application of specific statistical distributions. The toolbox and methods presented here illustrate the differences among techniques and the pros and cons of each.

APA, Harvard, Vancouver, ISO, and other styles

39

Warn, Alan James. "Evaluation of alternative discrete-event simulation experimental methods." Thesis, Bournemouth University, 2003. http://eprints.bournemouth.ac.uk/344/.

Full text

Abstract:

The aim of the research was to assist non-experts produce meaningful, non-terminating discrete event simulations studies. The exemplar used was manufacturing applications, in particular sequential production lines. The thesis addressed the selection of methods for introducing randomness, setting the length of individual simulation runs, and determining the conditions for starting measurements". Received wisdom" in these aspects of simulation experimentation was not accepted.The research made use of a Markov Chain queuing model and statistica analysis of exhaustive computer-based experimentation using test models. A specific production-line model drawn from the motor industry was used as a point of reference. A distinctive,quality control like, process of facilitating the controlled introduction of "representative randomness" from a pseudo random-number generator was developed, rather than relying on a generator's a priori performance in standard statistical tests of randomness. This approach proved to be effective and practical. Other results included: The distortion in measurements due to the initial conditions of a simulation run of a queue was only corrected by a lengthy run and not by discarding early results. Simulation experiments of the same queue, demonstrated that a single long run gave greater accuracy than having multiple runs. The choice of random number generator is less important than the choice of seed. Notably, RANDU (a "discredited"MLCG) with careful seed selection was able to outperform in tests both real random numbers, and other MLCGs if their seed were chosen randomly,99.8% of the time. Similar results were obtained for Mersenne Twister and Descriptive Sampling.Descriptive Samnpling was found to provide the best samples and was less susceptible to errorsin the forecast of the required sample size. A method of determining the run length of the simulation that would ensure the run was representative of the true condifions was proposed. An interactive computer program was created to assist in the calculation of the run length of a simulation and determine seeds so as to obtain" highly representative" samples, demonstrating the facility required in simulation software to support theses elected methods.

APA, Harvard, Vancouver, ISO, and other styles

40

Magbity, Edward Brima. "Methods for entomological evaluation of treated bed nets." Thesis, London School of Hygiene and Tropical Medicine (University of London), 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.324915.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Morrison, Donald. "Evaluation of DNA typing methods for Enterococcus faecium." Thesis, University of London, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.312043.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

Schneider, Sebastian Stefan. "Model for the evaluation of engineering design methods." München Verl. Dr. Hut, 2008. http://d-nb.info/99356934X/04.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Li, Longzhuang. "Statistical methods for performance evaluation and their applications /." free to MU campus, to others for purchase, 2002. http://wwwlib.umi.com/cr/mo/fullcit?p3060118.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

Skabova, Ivana Carleton University Dissertation Engineering Civil and Environmental. "Evaluation of Marshall and gyratory laboratory compaction methods." Ottawa, 1996.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

45

Draper, Jeffrey Dean. "Neural networks and non-destructive test/evaluation methods." Thesis, College Park, Maryland : University of Maryland, College Park, 1992. http://handle.dtic.mil/100.2/ADA254802.

Full text

Abstract:

Thesis (M.S. in Civil Engineering)--University of Maryland, College Park, 1992.
"A scholarly paper submitted to Assistant Professor Ian Flood." Description based on title screen as viewed on April 16, 2009. Includes bibliographical references (p. 49-52). Also available in print.

APA, Harvard, Vancouver, ISO, and other styles

46

López, Buenache Germán. "Essays on Forecasting Methods and Monetary Policy Evaluation." Doctoral thesis, Universidad de Alicante, 2015. http://hdl.handle.net/10045/50225.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Malottki, Kinga. "Stratified medicine : methods for evaluation of predictive biomarkers." Thesis, University of Birmingham, 2016. http://etheses.bham.ac.uk//id/eprint/7118/.

Full text

Abstract:

Background: Stratified medicine was defined as the use of biomarkers to select patients more likely to respond to a treatment or experience an adverse event. Alms: To investigate the hypothesis that there is a mismatch between the theoretical proposals and practice of predictive biomarker research, focusing on the clinical utility stage. Methods: Methodological research was identified in a systematic review of frameworks for staged evaluation of predictive biomarkers. Actual research supporting 50 real cases identified in European Medicines Agency licensing was analysed. A case study of recent research into ERCC l in non-small cell lung cancer was undertaken. Existing discrepancies between the theory and practice were identified and possible reasons and consequences of these were discussed. Findings: A mismatch between theory and practice was identified. It appeared to be a result of both the practice not following some theoretical requirements, and the underdevelopment of methodology for certain situations. Areas of clinical research with insufficient relevant methodology were identified. Conclusions: The major research priorities identified in this thesis were development of a clear hierarchy of biomarker research designs and development of methodology related to the biomarker threshold.

APA, Harvard, Vancouver, ISO, and other styles

48

Ribeiro, Luciana Carneiro. "Acerola powder: drying methods and evaluation of stability." Universidade Federal do CearÃ, 2014. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=13078.

Full text

Abstract:

FundaÃÃo Cearense de Apoio ao Desenvolvimento Cientifico e TecnolÃgico
The objective of this research was to obtain powder from the pulp of integral acerola two drying methods (spray-dryer and freeze drying), and the determination of physical and chemical stability and hygroscopic and morphological characteristics. Acerola pulps were acquired in the trade of Fortaleza. The pulp was characterized and post as the physicochemical, colorimetric and morphological parameters. The study of the stability of the powders was carried out in three distinct packaging for a period of 90 days. The adsorption isotherms were also determined. The results indicated optimal conditions for drying spray-dryer using drying temperature of 154 ÂC and the pulp concentration maltodextrin 17,1%, while in the lyophilizer, 19,1% maltodextrin with lyophilization time of 24 hours. All physico-chemical parameters evaluated in the whole pulp undergo change after drying. The drying spray-dryer powder generated with lower humidity, and lyophilization produced a more hygroscopic powder, with a greater degree of caking, and better color preservation, the pH being a parameter of small variation. The study of the stability of acerola pulp powder obtained by different drying methods allowed us to observe increased humidity and coordinate a* b* and decreased ascorbic acid and brightness. The use of laminated packaging laminate vacuum was effective to maintain moisture and hygroscopic powder, with less loss of ascorbic acid for packaging laminda vacuum. The BET model best fit the adsorption isotherms of the lyophilized powder acerola pulp, while for the spray-dryer model Oswin better adjusted to 25 ÂC, and Henderson model for 35 and 45 ÂC. Morphological characterization showed by analysis of Microcopia Scanning Electron (SEM), X-ray diffraction (XRD) spectroscopy and Fourier Transform Infrared (FTIR-ATR) that the lyophilization process generates an amorphous powder and adding maltodextrin protects the frame of samples and permits lower moisture absorption also show similar composition between samples, and a higher absorbance obtained is lyophilized in the whole sample.
O objetivo desta pesquisa foi a obtenÃÃo de pÃ a partir da polpa de acerola integral por dois mÃtodos de secagem (spray-dryer e liofilizaÃÃo), assim como a determinaÃÃo da estabilidade fÃsico-quÃmica e caracterÃsticas higroscÃpicas e morfolÃgicas. As polpas de acerola foram adquiridas no comÃrcio de Fortaleza-CE. Caracterizou-se a polpa e os pÃs quanto a parÃmetros fÃsico-quÃmicos e colorimÃtricos e morfolÃgicos. O estudo da estabilidade dos pÃs foi realizado em trÃs embalagens distintas por um perÃodo de 90 dias. Determinou-se ainda as isotermas de adsorÃÃo. Os resultados indicaram condiÃÃes Ãtimas de secagem em spray-dryer utilizando temperatura de secagem de 154ÂC e concentraÃÃo de maltodextrina na polpa de 17,1%, enquanto para o liofilizador, 19,1% de maltodextrina com tempo de liofilizaÃÃo de 24 horas. Todos os parÃmetros fÃsico-quÃmicos avaliados na polpa integral sofrem variaÃÃo apÃs secagem. A secagem em spray-dryer gerou pÃ com menor umidade, e a liofilizaÃÃo gerou um pÃ mais higroscÃpico, com maior grau de caking, e melhor preservaÃÃo da cor, sendo o pH um parÃmetro de pequena variaÃÃo. O estudo da estabilidade das polpas de acerola em pÃ obtidas por diferentes mÃtodos de secagem permitiu observar aumento da umidade e das coordenadas a* e b* e diminuiÃÃo do Ãcido ascÃrbico e luminosidade. O uso de embalagens laminada e laminada a vÃcuo mostrou-se eficaz para a manutenÃÃo da umidade e higroscopicidade dos pÃs, com menor perda de Ãcido ascÃrbico para a embalagem laminada a vÃcuo. O modelo de BET melhor se ajustou as isotermas de adsorÃÃo o pÃ de polpa de acerola liofilizado, enquanto para o spray-dryer o modelo de Oswin melhor se ajustou a 25ÂC, e o modelo de Henderson para 35 e 45ÂC. A caracterizaÃÃo morfolÃgica mostrou pelas anÃlises de Microcopia EletrÃnica de Varredura (MEV), DifraÃÃo de Raios-X (DRX) e Espectroscopia de Infravermelho com Transformada de Fourier (FTIR-ATR) que o processo de liofilizaÃÃo gera um pÃ amorfo e que a adiÃÃo de maltodextrina protege a estruturadas amostras e permite uma menor absorÃÃo de umidade, ainda mostra composiÃÃo similar entre as amostras, e que uma maior absorbÃncia Ã obtida em amostra integral liofilizada.

APA, Harvard, Vancouver, ISO, and other styles

49

Lewith, George. "The clinical effects of acupuncture : methods of evaluation." Thesis, University of Southampton, 1994. https://eprints.soton.ac.uk/399479/.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Dorafshan, Sattar. "Non-Contact Evaluation Methods for Infrastructure Condition Assessment." DigitalCommons@USU, 2018. https://digitalcommons.usu.edu/etd/7314.

Full text

Abstract:

The United States infrastructure, e.g. roads and bridges, are in a critical condition. Inspection, monitoring, and maintenance of these infrastructure in the traditional manner can be expensive, dangerous, time-consuming, and tied to human judgment (the inspector). Non-contact methods can help overcoming these challenges. In this dissertation two aspects of non-contact methods are explored: inspections using unmanned aerial systems (UASs), and conditions assessment using image processing and machine learning techniques. This presents a set of investigations to determine a guideline for remote autonomous bridge inspections.

APA, Harvard, Vancouver, ISO, and other styles

Dissertations / Theses on the topic 'Methods of bioclimate evaluation'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles