We target the thermal emission spectrum of the non-transiting gas giant HD 88133 b with high-resolution near-infrared spectroscopy, by treating the planet and its host star as a spectroscopic binary. For sufficiently deep summed flux observations of the star and planet across multiple epochs, it is possible to resolve the signal of the hot gas giant's atmosphere compared to the brighter stellar spectrum, at a level consistent with the aggregate shot noise of the full data set. To do this, we first perform a principal component analysis to remove the contribution of the Earth's atmosphere to the observed spectra. Then, we use a cross-correlation analysis to tease out the spectra of the host star and HD 88133 b to determine its orbit and identify key sources of atmospheric opacity. In total, six epochs of Keck NIRSPEC L-band observations and three epochs of Keck NIRSPEC K-band observations of the HD 88133 system were obtained. Based on an analysis of the maximum likelihood curves calculated from the multi-epoch cross-correlation of the full data set with two atmospheric models, we report the direct detection of the emission spectrum of the non-transiting exoplanet HD 88133 b and measure a radial projection of the Keplerian orbital velocity of 40 +/- 15 km s(-1), a true mass of 1.02(-0.28)(+0.61) M-J, a nearly face-on orbital inclination of 15(-5)(+60), and an atmosphere opacity structure at high dispersion dominated by water vapor. This, combined with 11 years of radial velocity measurements of the system, provides the most up-to-date ephemeris for HD 88133.

No description available.

M.Tech. (Fine Art) / The research investigates the similarities and differences between the display of selected, mass-produced objects in museums, with special reference to the Victoria & Albert Museum and Melrose House Museum, and in three domestic spaces. A brief historical background to the activity of collecting mass-produced objects is explored in order to reveal the archival function of museum displays and domestic displays, each of which conserve and preserve objects. The public and private meanings attached to objects in different spaces is suggested, and the ability of the selected objects to reflect social issues beyond their function is addressed. Both museum displays and domestic displays provide the source for the altered objects and drawings which form the exhibition. In manipulating the ready-made, mass-produced objects possible new meanings and narratives are suggested.

Context. Measurement of the Galactic neutral atomic hydrogen (H I) column density, NH I, and brightness temperatures, T-B, is of high scientific value for a broad range of astrophysical disciplines. In the past two decades, one of the most-used legacy H I datasets has been the Leiden/Argentine/Bonn Survey (LAB). Aims. We release the H I 4 pi survey (HI4PI), an all-sky database of Galactic H I, which supersedes the LAB survey. Methods. The HI4PI survey is based on data from the recently completed first coverage of the Effelsberg-Bonn H I Survey (EBHIS) and from the third revision of the Galactic All-Sky Survey (GASS). EBHIS and GASS share similar angular resolution and match well in sensitivity. Combined, they are ideally suited to be a successor to LAB. Results. The new HI4PI survey outperforms the LAB in angular resolution (theta(FWHM) = 16'.2) and sensitivity (sigma(rms) = 43 mK). Moreover, it has full spatial sampling and thus overcomes a major drawback of LAB, which severely undersamples the sky. We publish all-sky column density maps of the neutral atomic hydrogen in the Milky Way, along with full spectroscopic data, in several map projections including HEALPix.

MSc, Plastic and Reconstructive Surgery, Faculty of Health Sciences, University of the Witwatersrand / Evolution of cleft lip repair has been ongoing for many years. The reason for the various techniques stems from the advances relevant to function and aesthetics of the repair. Unfortunately, the literature does not reveal the long term results of many of these procedures with reference to normal lip anthropometrics. The reason for this is that the normal lip anthropometrics have not been adequately described. This study aims to describe a new technique for unilateral cleft lip repair and to substantiate its evolution by comparing it to the normal upper lips as well as to the most popular current technique of cleft lip repair (Millard technique). This will be done by the following steps: 1. Evaluate the most commonly used current technique of unilateral cleft lip repair (Millard rotation advancement), both objectively and subjectively. 2. Assess the normal anthropometric measurements of the horizontal lip dimensions. a. To assess normal horizontal lip dimensions according to different age categories to serve as reference values for further studies. b. To assess the timing where the lip is fully developed. vi c. To assess Cupid’s bow length in relation to horizontal lip length at different ages, thereby assessing dynamic changes with growth. 3. Compare the currently used technique of unilateral cleft lip repair to normal values indicating the anatomical drawbacks to the technique. 4. Describe a new technique for unilateral cleft lip repair which eliminates some of the unwanted drawbacks of the Millard technique. This new technique has the distinct advantage of maintaining better lip symmetry and not breaching anatomical landmarks of the lip. This technique is referred to as the straight line repair and is easy to teach and the results are reproducible

by Leung Pak Ming. / Thesis (M.Phil.)--Chinese University of Hong Kong, 1980. / Bibliography: leaves 199-206.

Kwong Lap-ming. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2001. / Includes bibliographical references (leaves 101-[104]). / Abstracts in English and Chinese. / Chapter 1 --- Introduction to Image Communication --- p.1 / Chapter 1.1 --- Existing Approach improving Image Communication --- p.8 / Chapter 1.1.1 --- Data Compression --- p.8 / Chapter 1.1.2 --- Progressive Image Transmission --- p.10 / Chapter 2 --- Review of Progressive Image Transmission Methods --- p.13 / Chapter 2.1 --- Pyramidal Image Coding --- p.14 / Chapter 2.1.1 --- Expansive Image Pyramid --- p.15 / Chapter 2.1.2 --- Non-Expansive Image Pyramid --- p.18 / Chapter 2.1.3 --- Pros and Cons of Pyramidal Data Structure --- p.19 / Chapter 2.2 --- Hierarchical Data Structure with Bit Plane Transmission --- p.20 / Chapter 2.2.1 --- Bitwise Condensed Quadtree method (BCQ)[6] --- p.21 / Chapter 2.2.2 --- Progressive Transmission of Full-Search VQ[7] --- p.25 / Chapter 2.2.3 --- Pros and Cons of Hierarchical Data Structure with Bit Plane Transmission --- p.26 / Chapter 2.3 --- Embedded Transform Coding --- p.27 / Chapter 2.3.1 --- SPIHT method [16] --- p.27 / Chapter 2.3.2 --- Embedded DCT Method [13] --- p.30 / Chapter 2.3.3 --- Pros and Cons of Embedded Transform Coding --- p.31 / Chapter 2.4 --- Summary --- p.32 / Chapter 3 --- Progressive Refinement of Colormapped Image --- p.34 / Chapter 3.1 --- Colormapped Image --- p.36 / Chapter 3.1.1 --- Pros and Cons of the Usage of Colormapped Image --- p.37 / Chapter 3.2 --- Progressive Refinement in both Spatial and Contrast Resolutions --- p.38 / Chapter 4 --- The Design of Progressive Refinement of Colormapped Image --- p.42 / Chapter 4.1 --- The Scalar Quantization in the YCrCb color space --- p.44 / Chapter 4.1.1 --- The Color Space for Color Quantization --- p.44 / Chapter 4.1.2 --- Color Quantization --- p.44 / Chapter 4.1.3 --- The Order of Quantization --- p.47 / Chapter 4.1.4 --- Pixel Mapping --- p.55 / Chapter 4.2 --- Reordering Pixels --- p.58 / Chapter 4.3 --- Transmission Sequence --- p.61 / Chapter 4.4 --- Changing the progression rate of the spatial and the contrast resolution --- p.62 / Chapter 4.5 --- Data Transmission --- p.69 / Chapter 4.6 --- Displaying the image --- p.70 / Chapter 5 --- Results Analysis & Performance Evaluation --- p.72 / Chapter 5.1 --- Traffic overhead --- p.72 / Chapter 5.2 --- Performance Evaluation --- p.73 / Chapter 5.2.1 --- Experiment --- p.73 / Chapter 5.2.2 --- Comparison with other Methods --- p.81 / Chapter 5.2.3 --- Image quality variation --- p.93 / Chapter 6 --- Discussion and Conclusion --- p.97 / Chapter 6.1 --- Discussion --- p.97 / Chapter 6.2 --- Conclusion --- p.99 / Bibliography --- p.101

Aluminum based alloys can be broadly classified into two groups: casting alloys and wrought alloys. Wrought Al-based alloys exhibit superior physical and mechanical properties compared to the conventional shaped casting alloys. The wrought alloys cannot be cast into near net shapes, because they develop hot tears or hot cracks during the solidification process. For this reason these alloys are cast into ingots and are subsequently brought to final shape by mechanical processes like rolling, extrusion, drawing and forging. Invariably these processes significantly increase the cost of the final part up to 50%, and have restrained the application of the wrought alloys in applications where the cost is not a major factor. The CDS (Controlled Diffusion Solidification) is a novel process that bypasses the intermediate steps by casting the wrought alloy directly into final shape, free of hot tears, and eliminating additional deformation steps. The CDS process follows a different route from conventional casting methods. In CDS, two liquid metals of predetermined composition and temperature are mixed producing a globular microstructure instead of a dendritic one. The nondendritic microstructure minimizes the hot- tearing tendency and makes the wrought alloys more suitable to casting operations. The underlying principles and mechanisms of the CDS process have been established through both experimental work and the development of a mathematical model. The operating window of the process has been defined, and guidelines are proposed to enable application of the CDS process to various alloy systems. The reduction of the hot-tearing tendency in Al wrought alloys was experimentally verified.

No description available.

This research considers the production and presentation of 3-D CGI animation where the intention is to explore the potential of this mode of practice as material. Through a practical and theoretical study, this research project outlines the proposal that within the context of 3-D CGI animation there exists a property that can be regarded as unique, or deemed as an essential quality, which in turn can be defined as material. The research refers directly to work developed by Structural/Materialist filmmakers and artists working in the 1960s and 1970s whose investigation into process and materiality acts as a method and potential framework for exploringapproaches and processes within 3-D CGI animation. The project asks the following questions: 1. Is it possible through a practical exploration to establish distinctiveness for 3-D CGI animation? 2. Can theoretical research in relation to media studies, film studies, specifically Structural/Materialist film assist to support and shape project development? 3. Can the practical work associated with the project and theoretical undertaking converge to support a basis for determining an individual characteristic for 3-D CGI animation? Hypothesis My hypothesis in relation to the expected findings and outcomes for the project can be distilled to form two strands: 1. That 3-D CGI is definable as a unique mode of production and can be classified as distinct from other digital modes of image production. That the result of the research will point towards a conceptualisation for 3-D CGI where as a process it has the capacity and the influence to be considered as a unique, discreet mode of production. That the qualities and the self-styled artefacts that emerge from the digital mass can be determined as definable products linked to a specific process.