9,519 research outputs found

    Difference and dispersion: Educational research in a postmodern context

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    Difference and Dispersion is the fourth in a series of annual research papers produced by doctoral students from The Graduate School of Education, The University of Queensland, following their presentation at the School’s annual Postgraduate Research Conference in Education.\ud \ud The work featured herein celebrates the diversity of cultural and disciplinary backgrounds of education researchers who come from as far afield as Germany, Hong Kong, China, Nigeria, Russia, Singapore, Thailand and of course different parts of Australia. In keeping with a postmodern epistemology, ‘difference’ and ‘dispersion’ are key themes in apprehending the multiplicity of their research topics, methodologies, methods and speaking/writing positions.\ud \ud From widely differing contexts and situations, these writers address the consequences, implications and possibilities for education at the beginning of the third millennium. Their interest ranges from location-specific issues in schools and classrooms, change in learning contexts and processes, educational discourses and relations of power in diverse geographical settings, and the differing articulations of the local and the global in situated policy contexts. \ud \ud Conceived and developed in a spirit of ongoing dialogue with and insight to alternative views and visions of education and society, this edited collection exemplifies the quality in diversity and the high levels of scholarship and supervision at one of Australia’s finest Graduate Schools of Education

    Optimal design of an aeroelastic wing structure with seamless control surfaces

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    This article presents an investigation into the concept and optimal design of a lightweight seamless aeroelastic wing (SAW) structure for small air vehicles. Attention has been first focused on the design of a hingeless flexible trailing edge (TE) control surface. Two innovative design features have been created in the SAW TE section: an open sliding TE and a curved beam and disc actuation mechanism. This type of actuated TE section allows for the SAW having a camber change in a desirable shape and minimum control power demand. This design concept has been simulated numerically and demonstrated by a test model. For a small air vehicle of large sweep back wing, it is noted that significant structural weight saving can be achieved. However, further weight saving is mainly restricted by the aeroelastic stability and minimum number of carbon/epoxy plies in a symmetric layup rather than the structural strength. Therefore, subsequent effort was made to optimize the primary wing box structure. The results show that an initial structural weight can be reduced significantly under the strength criterion. The resulting reduction of the wing box stiffness and aeroelastic stability and control effectiveness can be improved by applying the aeroelastic tailoring. Because of the large swept angle and resulting lightweight and highly flexible SAW, geometrical non-linearity and large bending-torsion aeroelastic coupling have been considered in the analysis

    Optimal design of a composite wing structure for a flying-wing aircraft subject to multi-constraint

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    This thesis presents a research project and results of design and optimization of a composite wing structure for a large aircraft in flying wing configuration. The design process started from conceptual design and preliminary design, which includes initial sizing and stressing followed by numerical modelling and analysis of the wing structure. The research was then focused on the minimum weight optimization of the /composite wing structure /subject to multiple design /constraints. The modelling, analysis and optimization process has been performed by using the NASTRAN code. The methodology and technique not only make the modelling in high accuracy, but also keep the whole process within one commercial package for practical application. The example aircraft, called FW-11, is a 250-seat commercial airliner of flying wing configuration designed through our MSc students Group Design Project (GDP) in Cranfield University. Started from conceptual design in the GDP, a high-aspect-ratio and large sweepback angle flying wing configuration has been adopted. During the GDP, the author was responsible for the structural layout design and material selection. Composite material has been chosen as the preferable material for both the inner and outer wing components. Based on the derivation of structural design data in the conceptual phase, the author continued with the preliminary design of the outer wing airframe and then focused on the optimization of the composite wing structure. Cont/d

    The prevalence of debt instruments? - the investors' perspectives.

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    by Jackson Wing-Kwong Cheung, Patrick Kai-Cheung Yeung.Thesis (M.B.A.)--Chinese University of Hong Kong, 1989.Bibliography: leaves 64-65

    Hu lian wang luo shang de beng ta xing wei

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    Cheung, Wing Kai = 互連網絡上的崩塌行為 / 張永佳.Thesis M.Phil. Chinese University of Hong Kong 2015.Includes bibliographical references (leaves 96-99).Abstracts also in Chinese.Title from PDF title page (viewed on 14, September, 2016).Cheung, Wing Kai = Hu lian wang luo shang de beng ta xing wei / Zhang Yongjia

    Serum high-density lipoprotein subfractions in Chinese chronic uraemic patients treated with hemodialysis, peritoneal dialysis, and renal transplantation.

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    by Wing-cheung Pang.Thesis (M.Sc.)--Chinese University of Hong Kong, 1988.Bibliography: leaves 45-56

    Some vanishing theorems on non-compact complex spaces.

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    by Cheung Wing Sum.Thesis (M.Phil.)--Chinese University of Hong Kong, 1980.Bibliography: leaves 94-98
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