Stuttgart, Univ., Diss., 2005.

The digital watermarking technique embeds meaningful information into one or more watermark images hidden in one image, in which it is known as a secret carrier. It is difficult for a hacker to extract or remove any hidden watermark from an image, and especially to crack so called digital watermark. The combination of digital watermarking technique and traditional image encryption technique is able to greatly improve anti-hacking capability, which suggests it is a good method for keeping the integrity of the original image. The research works contained in this thesis include: (1)A literature review the hyperchaotic watermarking technique is relatively more advantageous, and becomes the main subject in this programme. (2)The theoretical foundation of watermarking technologies, including the human visual system (HVS), the colour space transform, discrete wavelet transform (DWT), the main watermark embedding algorithms, and the mainstream methods for improving watermark robustness and for evaluating watermark embedding performance. (3) The devised hyperchaotic scrambling technique it has been applied to colour image watermark that helps to improve the image encryption and anti-cracking capabilities. The experiments in this research prove the robustness and some other advantages of the invented technique. This thesis focuses on combining the chaotic scrambling and wavelet watermark embedding to achieve a hyperchaotic digital watermark to encrypt digital products, with the human visual system (HVS) and other factors taken into account. This research is of significant importance and has industrial application value.

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論文1ページ目の下部に著作権を表示すること。（© 2016, American Society for Microbiology. ） / 京都大学 / 0048 / 新制・課程博士 / 博士(医科学) / 甲第19634号 / 医科博第72号 / 新制||医科||5(附属図書館) / 32670 / 京都大学大学院医学研究科医科学専攻 / (主査)教授 近藤 玄, 教授 篠原 隆司, 教授 秋山 芳展 / 学位規則第4条第1項該当 / Doctor of Medical Science / Kyoto University / DFAM

This dissertation investigates syntax and semantics of copular clauses containing two NPs. Since Higgins (1973) four semantically distinct types of copular clauses have been recognized in the literature, i.e. predicational, equative, specificational, and identificational clauses. There are many proposals aiming to reduce the number of copular clause types via collapsing certain types into others. This dissertation contributes to the debate by providing novel evidence from Czech that identificational clauses are predicational and specificational clauses are inverted predicational or equative clauses. Czech provides an excellent tool to investigate copular clauses for three reasons: (i) rich phi-feature agreement, (ii) case alternation, (iii) analytical verbal morphology. Using the three properties Czech offers, I argue that specificational clauses are derived via scrambling of a structurally lower NP over a structurally higher NP. Consequently, I support the inversion analysis of specificational clauses (Moro, 1997; Den Dikken, 2006; Mikkelsen, 2006; Heycock, 2012, a.o.). I also argue that specificational clauses may be derived from both, predicational and equative clauses. In contrast, identificational clauses, despite their initial resemblance to specificational clauses, are argued not to involve inversion, therefore providing empirical support for Heller and Wolter (2008). I also present novel empirical data from Czech that show that the interpretation of the pronoun in identificational clauses is restricted by the copular agreement. In order to account for the restriction, I argue that both NPs in identificational clauses Agree with the copula via a Multiple-Agree chain (see Hiraiwa (2005)). / Thesis / Doctor of Philosophy (PhD)

Graduate

The goal of this dissertation is to argue on the basis of the minimalist framework that the topichood of sentence topics and contrastive focus result from derivational and structural differences in the left periphery and to provide acquisition data from child language to support this claim, showing data from Korean, a free word-order and pro-drop language in which topics and contrastive foci are realized morphologically. In Korean, topic phrases merge in the left periphery and contrastive focus phrases undergo scrambling, one of the shared properties of free word-order languages. It is consistent in fixed word-order languages such as Italian and Hungarian and a free word-order language like Korean that topics merge and contrastive foci move to the left. Topics precede contrastive foci: topics merge in TopP, a higher functional projection than FocP, to which focus phrases move. In the process of language acquisition, the derivational and structural differences between topic phrases and contrastive focus phrases may have influences on the developmental order of grammar acquisition. In acquisition data from two-year-old Korean children, topics emerge earlier than contrastive foci, indicating that topic and contrastive focus are also acquisitionally different. This study is the first attempt to examine the structural differences and the influence on language acquisition of morphologically derived topic phrases and contrastive focus phrases in acquisition data from a free word-order and pro-drop language. This study shows the structural consistency of topic and contrastive focus between a free word-order language and fixed word-order languages. The syntactic and acquisitional distinction of topic merge and contrastive focus movement is compatible with the semantic and pragmatic approaches to topic and focus. This study provides evidence of the syntactic differences between topic and contrastive focus without dependence on phonetic features; therefore, this study is a base for drawing a map of the left periphery of human languages. / text

Thesis (Masters Diploma (Technology))--Cape Technikon, Cape Town, 1989 / The document initially describes the operation of the decoder and the production system. Thereafter actual engineering problems are stated and their solutions discussed. The project involves the accurate identification of problem areas on the production line and the systematic solving for each case. Subjects include static electricity pretesting and automatic insertion machine defects. Analysis of these problems provides one with a better perspective towards the production line and its inherent problems. Results and solutions are presented photographically as well as tabulated in the annexure. In some cases, such as defect classification, deductions were concluded that were very different from those initially expected.

Ciliates are a class of organisms which undergo a genetic process called gene descrambling after mating. In order to better understand the problem, a literature review of past works has been presented in this thesis. This includes a brief summary of both the relevant biology and bioinformatics literature. Then, a formal definition of scrambling systems is developed which attempts to model the problem of sequence alignment between scrambled and descrambled genes. With this system, sequences can be classified into relevant functional segments. It also provides a framework whereby we can compare various ciliate sequence alignment algorithms. After that, a new method of predicting the various functional segments is studied. This method shows better coverage, and usually a better labelling score with certain parameters. Then we discuss several recent hypotheses as to how ciliates naturally descramble genes. An algorithm suite is developed to test these hypotheses. With the tests, we are able to computationally check which factors are potentially the most important. According to the current results with 247 pointer sequences of 13 micronuclear genes, examining repeats which are the same distance together with either the sequence or the size, as the real pointers, is almost always enough information to guide descrambling. Indeed, the real pointer sequence is the unique repeat 92.7% and 94.3% of the time within the 247 pointers, from the left and right respectively, using only the pointer distance and the pointer sequence information.

Ciliates are a class of organisms which undergo a genetic process called gene descrambling after mating. In order to better understand the problem, a literature review of past works has been presented in this thesis. This includes a brief summary of both the relevant biology and bioinformatics literature. Then, a formal definition of scrambling systems is developed which attempts to model the problem of sequence alignment between scrambled and descrambled genes. With this system, sequences can be classified into relevant functional segments. It also provides a framework whereby we can compare various ciliate sequence alignment algorithms. After that, a new method of predicting the various functional segments is studied. This method shows better coverage, and usually a better labelling score with certain parameters. Then we discuss several recent hypotheses as to how ciliates naturally descramble genes. An algorithm suite is developed to test these hypotheses. With the tests, we are able to computationally check which factors are potentially the most important. According to the current results with 247 pointer sequences of 13 micronuclear genes, examining repeats which are the same distance together with either the sequence or the size, as the real pointers, is almost always enough information to guide descrambling. Indeed, the real pointer sequence is the unique repeat 92.7% and 94.3% of the time within the 247 pointers, from the left and right respectively, using only the pointer distance and the pointer sequence information.