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Abstract My thesis aims to discuss the ¡§creation¡¨ issue in Oscar Wilde¡¦s The Picture of Dorian Gray. Depicting how Dorian is made a decadent hedonist, the novel is generally regarded by critics as a story of creation, in which what is created is not only the magical painting but the hero as well. Only through his image mirrored in the painting Basil offers can Dorian come to know himself; the hero is ¡§produced¡¨ as what he is by his friends. Thus, to discuss how this creation of the hero takes place, I will employ Jacques Lacan¡¦s theory of the mirror stage, along with Roland Barthes¡¦ insight of ¡§textuality.¡¨ ¡§Mirror, Text and the Symbolic Matrix.¡¨ By suggesting these three interlocking axes I seek to outline the process of creation that governs the novel. Through his image mirrored in the picture, Dorian comes to know himself. He identifies with the image and grows. However, the painting that reveals Dorian to himself is an artifact produced by Basil. What Dorian identifies with is a ¡§text¡¨ he ¡§reads¡¨ in Basil¡¦s work, an other. Seeing how he changes the portrait, ¡§writing¡¨ it with his ¡§passions and sins,¡¨ Dorian comes to enter the symbolic realm. Yet it is also through such a move that Dorian is ¡§objectified in the dialectic of identification with the other¡¨ as Lacan suggests. He is inserted into the chain of signifiers, in which the ¡§real¡¨ Dorian is ceaselessly replaced. In The Picture of Dorian Gray, it is through the complex work of texts and the interplay of influences that the hero is created; by analyzing these interactions I would like to disclose the creation issue. In my first chapter I begin by re-examining the relationship between Henry and Dorian, through which I aim at illuminating the characters¡¦ function as ¡§floating signifiers.¡¨ I proceed to throw light on Basil, the creator of Dorian¡¦s image, in chapter two: by which I seek to reveal Basil¡¦s influence over Dorian. In chapter three I would analyze how Dorian¡¦s romance with Sibyl influences him¡Xand what Sibyl signifies to him, while I would also discuss the significance of James Vane (Sibyl¡¦s brother). The fourth chapter is a discussion dedicated to the picture, which functions not only as a Lacanian mirror but becomes the canvas upon which Dorian and Basil compete writing¡Xwhile both are ¡§written¡¨ by the text they produce. To conclude, I would re-examine the nature of text: to which man is both its cause and its effect.

Abstract The purpose of this thesis is to design and fabricate optical waveguide reflectors by using vertical mirror reflector. In order to reflect the incident optical mode of multi-mode interference coupler, we fabricate the etched vertical reflective mirror surface with dry etch processes. We used the design of etched vertical mirror surfaces to bend the incident optical mode, and changed the length of multi-mode interference coupler for the power splitting ratio and high power output. In order to make total internal reflection in vertical reflective mirror, we used ICP-RIE dry etching process to fabricate vertical and smooth mirror. In this part of design the semiconductor optical filter, we design the 90o vertical mirror reflector and the length of MMI by using a 2¡Ñ2 multi-mode interference coupler to get the power splitter with coupling coefficient. We comprise the ring resonator by two vertical mirror reflector and bended waveguide to displace the cleaved of Fabry-Perot resonator in tradition. In fabrication process, we using dry etching (ICP-RIE) process that is the plasma system high density in all part of this paper. first, we defined the device pattern by using photo-lithography technique in our sample . Second, we etched ridge waveguide by using dry etching ICP-RIE method. In order to decrease the scattering loss, we deep etched bended waveguide and the reflector. Then, we etched the reflector mirror by ICP-RIE dry etching process to get smoother surface. Finally, we used polyimide to flatten the sides of the ridge waveguide and evaporated metal electrode. In the device characteristic, we get the waveguide loss in 35.68dB by Fabry-Perot resonator and a power splitter with 85 percent and 15 percent output. Finally, we could get a transmission frequency about 81GHz from optical transmission spectrum in the filter device.

Laser transmission welding of polymers is a relatively new joining technique. It is based on the fact that the majority of thermoplastics are transparent to infrared radiation. A laser beam passes through the transparent part, and is then absorbed by a part rendered absorbent by additives such as carbon black. Absorbed laser energy is transformed into heat that melts the polymer at the interface between two parts, thus forming a weld. Many industrial applications have quite a complex geometry. This may often make it impossible to irradiate small elements of the joint interface directly. One of the possible solutions for this problem is to employ an oblique mirror to redirect a laser beam to the desired direction. In present work, transparent nylon tubes were welded to absorbing nylon plaques using a conical mirror inserted in the tube. The effects of the laser power, the angular motion speed, and the number of cycles on the joint shear strength were examined. Additionally, a two–dimensional axi-symmetric transient finite element heat transfer model was developed and evaluated. It simulated the temperature developed in the specimen during the welding cycle; the model was validated with the welding and mechanical testing results. The experimental results demonstrated good joint strength, confirming the feasibility of this technique. It was also found that welding at a lower laser beam power and a higher rotational speed allowed higher maximum weld strengths to be achieved at the expense of longer cycle time and higher energy consumption. Simulation of the temperature demonstrated that varying of the rotational speed at constant laser power does not change the overall temperature rise trend. / Thesis (Master, Mechanical and Materials Engineering) -- Queen's University, 2009-08-14 23:12:18.491

In recent years symplectic geometry and symplectic topology have grown to large subbranches in mathematics and had a great impact on other areas in mathematics. When interested in geometry, a geometer always considers geometric structures that arise on immersed submanifolds. In symplectic geometry there is a distinguished class of immersions, known as Lagrangian submanifolds . In particular, minimal Lagrangian submanifolds, called special Lagrangians, are very important in mirror symmetry. Lagrangian mean curvature flow is an important example of Lagrangian deformation. From which we can get the special Lagrangian submanifolds. In recent years, there have been many papers about this subject and the result by K.Smoczyk and Mu-Tao Wang [WS] is very important and beautiful. Our main purpose in this article is to give a new proof for the main result in [WS] from the viewpoint of fully nonlinear partial differential equations.

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Thesis (M.S.)--Western Washington University, 2010. / Includes bibliographical references (leaves 27-34). Also issued online.