Dissertations / Theses on the topic 'Metoda QR'
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Dorini, Fábio Antonio. "Método QR :." Florianópolis, SC, 2000. http://repositorio.ufsc.br/xmlui/handle/123456789/78519.
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Smith, David McCulloch. "Regression using QR decomposition methods." Thesis, University of Kent, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.303532.
Full textMcDonald, Edward James. "An analysis of QR methods for computing Lyapunov exponents." Thesis, University of Strathclyde, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.248328.
Full textRen, Minzhen. "Cordic-based Givens QR decomposition for MIMO detectors." Thesis, Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/50256.
Full textHassanein, Mohamed Sameh. "Secure digital documents using Steganography and QR Code." Thesis, Brunel University, 2014. http://bura.brunel.ac.uk/handle/2438/10619.
Full textOwen, Anne M. "Widescale analysis of transcriptomics data using cloud computing methods." Thesis, University of Essex, 2016. http://repository.essex.ac.uk/16125/.
Full textKrämer, Julia. "Development of novel methods for periplasmic release of biotherapeutic products." Thesis, University of Birmingham, 2017. http://etheses.bham.ac.uk//id/eprint/7603/.
Full textJia, Tianye. "Strategies and statistical methods for linkage disequilibrium-based mapping of complex traits." Thesis, University of Birmingham, 2012. http://etheses.bham.ac.uk//id/eprint/3292/.
Full textTancjurová, Jana. "Metody indikace chaosu v nelineárních dynamických systémech." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-400451.
Full textLopez, Florent. "Task-based multifrontal QR solver for heterogeneous architectures." Thesis, Toulouse 3, 2015. http://www.theses.fr/2015TOU30303/document.
Full textTo face the advent of multicore processors and the ever increasing complexity of hardware architectures, programming models based on DAG parallelism regained popularity in the high performance, scientific computing community. Modern runtime systems offer a programming interface that complies with this paradigm and powerful engines for scheduling the tasks into which the application is decomposed. These tools have already proved their effectiveness on a number of dense linear algebra applications. In this study we investigate the design of task-based sparse direct solvers which constitute extremely irregular workloads, with tasks of different granularities and characteristics with variable memory consumption on top of runtime systems. In the context of the qr mumps solver, we prove the usability and effectiveness of our approach with the implementation of a sparse matrix multifrontal factorization based on a Sequential Task Flow parallel programming model. Using this programming model, we developed features such as the integration of dense 2D Communication Avoiding algorithms in the multifrontal method allowing for better scalability compared to the original approach used in qr mumps. In addition we introduced a memory-aware algorithm to control the memory behaviour of our solver and show, in the context of multicore architectures, an important reduction of the memory footprint for the multifrontal QR factorization with a small impact on performance. Following this approach, we move to heterogeneous architectures where task granularity and scheduling strategies are critical to achieve performance. We present, for the multifrontal method, a hierarchical strategy for data partitioning and a scheduling algorithm capable of handling the heterogeneity of resources. Finally we present a study on the reproducibility of executions and the use of alternative programming models for the implementation of the multifrontal method. All the experimental results presented in this study are evaluated with a detailed performance analysis measuring the impact of several identified effects on the performance and scalability. Thanks to this original analysis, presented in the first part of this study, we are capable of fully understanding the results obtained with our solver
Swift, Benjamin M. C. "Development of rapid phage based detection methods for mycobacteria." Thesis, University of Nottingham, 2014. http://eprints.nottingham.ac.uk/14225/.
Full textBraddick, Darren. "Quantitative assay methods and mathematical modelling of peptidoglycan transglycosylation." Thesis, University of Warwick, 2012. http://wrap.warwick.ac.uk/57211/.
Full textBrena, Maria Camilla. "Effect of different poultry production methods on Campylobacter incidence and transmission in the broiler meat food chain." Thesis, University of Liverpool, 2013. http://livrepository.liverpool.ac.uk/18837/.
Full textAboklaish, Ali F. "The development of methods to investigate the mechanisms underlying serum resistance of Ureaplasma species." Thesis, Cardiff University, 2014. http://orca.cf.ac.uk/70797/.
Full textSaibel, Anna, Ylva Blomkvist, and Gabriel Kitzler. "Applicering av blockkedjeteknik på värdekedjor : Metod för ökad transparens i livsföretags förädlingsprocesser." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-238453.
Full textThis report examines the application of a blockchain on different types of Swedish food value chains. The purpose of the study is to evaluate the capacity of the technique for storing information to simplify tracking between the different stages in the supply chain. More specifically, the purpose is to identify the positive effects that the technology could bring businesses, what challenges an implementation could give rise to and finally what type of blockchain would suit the purpose. The study has been conducted with the help of interviewees in order to collect crucial data. Previous studies show that the new technology could lead to more efficient data management, facilitate communication between different stages of the value chains as well as increase traceability and transparency. Furthermore, the technology can increase food security and reduce fraud since higher traceability increases accountability. The study shows that there are indeed challenges with the launch and implementation of the technology, including the need for consensus among all parties involves in a value chain, which leads to increased complexity. Today there are no official requirements for information sharing through a shared database between organizations, in the future there might be a need for standardization. The results show that the most suitable type of blockchain for the purpose is one with permission and access control with regulations regarding who is allowed to read, add and validate information in the database. A prototype of an application based on the technology has been created to illustrate how information sharing could be done between different organizations.
Krishnan, Anand. "Laser and optical based methods for detecting and characterising microorganisms." Thesis, University of Glasgow, 2008. http://theses.gla.ac.uk/436/.
Full textGerrard, Zara Elizabeth. "The impact of a new method for the detection of Mycobacterium avium subspecies paratuberculosis on the control of Johne's disease in dairy cattle." Thesis, University of Nottingham, 2018. http://eprints.nottingham.ac.uk/50334/.
Full textKienmayer, Mattis. "Att avsudda bilder." Thesis, Örebro universitet, Institutionen för naturvetenskap och teknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-74835.
Full textDonfack, Simplice. "Methods and algorithms for solving linear systems of equations on massively parallel computers." Thesis, Paris 11, 2012. http://www.theses.fr/2012PA112042.
Full textMulticore processors are considered to be nowadays the future of computing, and they will have an important impact in scientific computing. In this thesis, we study methods and algorithms for solving efficiently sparse and dense large linear systems on future petascale machines and in particular these having a significant number of cores. Due to the increasing communication cost compared to the time the processors take to perform arithmetic operations, our approach embrace the communication avoiding algorithm principle by doing some redundant computations and uses several adaptations to achieve better performance on multicore machines.We decompose the problem to solve into several phases that would be then designed or optimized separately. In the first part, we present an algorithm based on hypergraph partitioning and which considerably reduces the fill-in incurred in the LU factorization of sparse unsymmetric matrices. In the second part, we present two communication avoiding algorithms that are adapted to multicore environments. The main contribution of this part is to reorganize the computations such as to reduce bus contention and using efficiently resources. Then, we extend this work for clusters of multi-core processors. In the third part, we present a new scheduling and optimization approach. Data locality and load balancing are a serious trade-off in the choice of the scheduling strategy. On NUMA machines for example, where the data locality is not an option, we have observed that in the presence of noise, performance could quickly deteriorate and become difficult to predict. To overcome this bottleneck, we present an approach that combines a static and a dynamic scheduling approach to schedule the tasks of our algorithms.Our results obtained on several architectures show that all our algorithms are efficient and lead to significant performance gains. We can achieve from 30 up to 110% improvement over the corresponding routines of our algorithms in well known libraries
Aksoy, Ceren. "Identification Of Serotype Specific Dna Marker For Salmonella Typhimurium By Rapd-pcr Method." Master's thesis, METU, 2004. http://etd.lib.metu.edu.tr/upload/12605441/index.pdf.
Full text-CGT GCA CGC-3&lsquo
, was used in RAPD-PCR with 35 different Salmonella isolates. 12 of them were serotype Salmonella Typhimurium and 23 of them were belonging to other six different serotypes. Accordingly, two different 300 bp and 700 bp sized amplification products were obtained from the 12 different Salmonella Typhimurium isolates. On the other hand, other 23 Salmonella isolates of six different serotypes gave only 300 bp amplification band while 700 bp amplification band was not observed with Primer 3 (RAPD 9.1). After the discovery of 700 bp fragmentwhich was specific for S. Typhimurium, it was decided to sequence. The 700 bp band was ligated onto the vector pUC 19 to sequence. The cloninig operation gave positive results by the formation of blue and white colonies, but plasmid isolation process from white colonies containing the ligated vector was not achieved. Therefore, sequencing of the 700 bp fragment together with plasmid DNA could not be completed. However it wil be sent to USA for sequencing. According to these results, it was discovered that 700 bp amplification product was found as a specific polymorphic region for Salmonella Typhimurium after RAPD application on genomic DNA and this band can be used as a specific marker for detection and identification of Salmonella Typhimurium.
Skoglund, Ingegerd. "Algorithms for a Partially Regularized Least Squares Problem." Licentiate thesis, Linköping : Linköpings universitet, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-8784.
Full textHUANG, YEN-MEI, and 黃燕美. "Numerical Study on Basic QR Method." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/7x2pvm.
Full text國立高雄師範大學
數學系
106
In this study, we want to explore whether the loss of orthogonality affects the findings of eigenvalues using basic QR method. We first introduce Norms of Vector and Matrix and Bauer-Fike theorem. Then we explain Power Method and three kind methods of QR decomposition: Gram-Schmidt process, Givens rotations, Householder transformations. Finally, we use the Hilbert matrix to observe the orthogonality obtained by the above method, and to check whether the eigenvalues are affected by the loss of orthogonality.
Lan, Wen-Shao, and 藍文劭. "Secret QR Code Method based on Triple-Module Group." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/45687908859490235980.
Full text元智大學
資訊傳播學系
105
The QR codes are very convenient to be used and can be accommodated with large amount of data, so that the QR codes are widely used in our life. When the QR data is privacy, everyone can easily to get the QR information. That is, the privacy the QR data is not protected. In this article, we proposed a secret hiding method by modifying the modules of the QR code based on triple module group. The new method can effective reduce the altered modules among the triple-module group. Compared to the related works, we can hide more hidden amount of data than the others, and moreover, we can preserve the readability on the QR code. The secret protection mechanism be applied with data hiding and secret sharing. It still shows the visual appearance of the QR code, and does not affect the QR Code itself readability. Everyone can only read original QR data without secret key, but the authorized user with the secret key can decode the secret data from the masked QR code. Therefore, the proposed method can protect the privacy and security of the QR data.
YO, SIN-YAN, and 游昕彥. "The Generation Method of Dynamic Color Icon QR Code." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/76787840548853449913.
Full text國立臺灣科技大學
資訊工程系
105
QR Code is a popular 2-D bar code. Traditional QR Code is composed of black and white blocks. Therefore, the content is unknown before scanning. If a color icon, such as trademarks, can be embedded, the usability is better. Researchers proposed some methods to improve the appearance of QR Code, making QR Code itself provide a visual message. Referencing from other previous works, in order to avoid damaging the coding structure, the QR Code visual effects must accommodate the integrity of the coding structure to have a better accuracy. Nowadays, with the widely used of electronic displays, QR Code does not only appear on paper, but also appear in electric billboards. As a result, the color icon QR Code can be shown as animations dynamically, making economic value of QR Code higher. Generating dynamic color QR Codes which keeps the integrity of its structure, is the goal of this thesis. In this thesis, the halftone technology, and the concept of the center module is applied to get the black and white block QR Code. Some generated blocks will cover the embedded icon in the QR code, and is uncovered using the Gauss-Jordan elimination method. The characteristics of the QR reader is also considered to reduce the center module. Finally, a series of color icon QR Codes to are used to get the dynamic color icon QR Codes. Our method produces a number of color icon QR Codes and dynamic color icon QR Codes. Through the user scan experiment, we validated that the QR Code generated by our method can be identified by the scanning software commonly used in the market.
Su, Yi-Chieh, and 蘇翊杰. "A Method of Visually Significant Trademark in QR Code Using the Halftone Techniques." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/b8qe39.
Full text元智大學
資訊工程學系
104
With the rise of Internet and smart phones, more and more media use QR Code to demonstrate information like advertising or website. We can conveniently use the camera on mobile phone to scan the QR Coode, and capture the information. QR Code has become the convenient and quick way to get any information in daily life. However, QR Code is composed of irregular blocks of black and white, the combination of the image is meaningless and hard to be interpreted directly. In order to increase the applicability of QR Code, the most common way is covering an image onto a QR Code. Because the limit of QR Code coding standard, the image will be smaller and unclear. In our paper, we first generate a basic QR Code, and adjust the blocks of black and white module with Gauss-Jordan Elimination. Then we use halftone techniques to strengthen the visual effect. Our proposed method can show the significant trademark in the QR Code. Consumers can identify the trademark immediately while scanning the QR Code, and it is also beneficial to company to achieve the purpose of advertising.
Chien-HanLee and 李建翰. "QR Code Beautification Based on Gauss-Jordan Elimination and a Novel Rendering Method." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/35651835599082999524.
Full text國立成功大學
資訊工程學系
102
QR code beautification is generally formulated as an optimization problem that minimizes the visual perception distortion subject to acceptable decoding rate. However, since the arithmetic operations of RS code are defined over a finite field F, normal convex optimization approaches cannot be directly applied. Consequently, solving the optimization problem becomes a challenge and related works usually take much time to generate an approximate result. In this work, we propose a two-stage approach to generate QR code with high quality visual content. In the first stage, a baseline QR code with poor visual quality is first synthesized based on the Gauss-Jordan elimination procedure. In the second stage, a rendering mechanism is designed to improve the visual quality while avoid affecting the decodability of the QR code. The experimental results show that the proposed method substantially enhances the appearance of the QR code and the processing complexity is near real-time.
Tsai, Heng-Chieh, and 蔡恒杰. "A Parallel Method for the Double-Shift QR Iteration in the Quadratic Eigenvalue Problem." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/01942968721684466061.
Full text國立交通大學
應用數學系
90
In this paper, we study the numerical solution of the quadratic eigenvalue problem ( A + B + C)x = 0, where A, B, and C are real nxn matrices, and A is nonsingular. We transform the quadratic eigenvalue problem into an enlarged standard eigenvalue problem where is a matrix of order 2n. Then we apply the Householder method and the double-shift QR iteration to get the eigenvalues of matrix . In order to obtain the eigenvalues faster, we propose a parallel method for the double-shift QR iteration. Our parallel method for the double-shift QR iteration decreases data-transferring time to one-third.
Yeh, Hsiao-Yu, and 葉小語. "Large-Scale MIMO Detector Based on Newton’s Method with Lattice Reduction and QR Decomposition." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/7ch2q7.
Full text國立清華大學
電機工程學系
107
Massive multiple-input multiple-output (MIMO) was proposed for the higher wireless data transmission rate without increasing channel bandwidth and transmit power. It plays an important role in the prospective fth-generation (5G) wireless communication. Meanwhile, the complexity of the MIMO detector increases signicantly along with the number of antennas. So, the design of high-performance low-complexity MIMO detector is a big challenge in hardware. There are numerous low-complexity MIMO detection algorithms proposed in order to solve this problem. However, many algorithms such as intra-iterative interference cancellation (IIC) detector provide high throughput and lower complexity, but they only approach the performance of the minimum-mean-square-error (MMSE) detector. The triangular approximate relaxation based detector (TASER) can approximate maximum likelihood (ML) detection performance, but is only subject to BPSK and QPSK modulation. However, its complexity still very high. Then, this study proposes a lattice-reduction-aided (LRA) symbol-wise (SW) IIC detector which can support M-QAM modulation. Although being near-MMSE performance, the proposed algorithm has advantages in the higher convergence rate and lower computational complexity in detector parts. The iteration number of the proposed algorithm is less than that of the IIC detector. In 64-QAM 128 x 8 antenna setting MIMO system, the proposed detector reduces about 95:35% computational complexity for IIC detector.
"Observability Methods in Sensor Scheduling." Doctoral diss., 2015. http://hdl.handle.net/2286/R.I.34856.
Full textDissertation/Thesis
Doctoral Dissertation Applied Mathematics 2015
"Vom Innovationsimpuls zum Markteintritt. Theorie, Praxis, Methoden." facultas WUV, 2014. http://epub.wu.ac.at/4414/1/Finale_Version_Vom_Innovationsimpuls_zum_Markteintritt_vom_verlag.pdf.
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