46,445 research outputs found
Friso de Chan Chan con un diseño escalonado de peces con aves procededente de una ciudadela
Sello al reverso: "COMITE CENTRAL DE CHAN CHAN TRUJILLO-PERU-FOTO- SAMPIETRI" "COMITE CENTRAL PRO RESTAURACION DE CHAN CHAN Pizarro 620-Trujillo-Perú". El núcleo de Chan Chan está formado por 10 "ciudadelas", llamadas así por ser grandes recintos cercados ("canchones"), en cuyo interior albergan muchas estructuras menores, asemejando pequeñas ciudades amuralladas, de los cuales 9 tienen muchas características comunes. Vistos desde el norte y el sentido de las agujas del reloj han sido bautizadas como Squier, Gran Chimú, Bandelier, Uhle, Chayhuac, Tschudi, Rivero, Laberinto, Tello y Velarde. Referencia: http://www.arqueologiadelperu.com.ar/chanchan.htm, (última consulta 28/09/2010)
Synthesis, structure and spectroscopic properties of [Cu3(?-dpnapy)3(CH3CN)][ClO4]3?CH3CN (dpnapy = 7-diphenylphosphino-2,4-dimethyl-1,8-naphthyridine) with a linear copper atom array
Wah Wing Chan : Noir sur noir
"Wah Wing Chan's new series of mixed media on washi paper works are achieved using an unusual technique [...]." - p
Optimal design of a composite wing structure for a flying-wing aircraft subject to multi-constraint
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
Optimal design of a flying-wing aircraft inner wing structure configuration
Flying-wing aircraft are considered to have great advantages and potentials in
aerodynamic performance and weight saving. However, they also have many
challenges in design. One of the biggest challenges is the structural design of
the inner wing (fuselage). Unlike the conventional fuselage of a tube
configuration, the flying-wing aircraft inner wing cross section is limited to a
noncircular shape, which is not structurally efficient to resist the internal
pressure load. In order to solve this problem, a number of configurations have
been proposed by other designers such as Multi Bubble Fuselage (MBF),
Vaulted Ribbed Shell (VLRS), Flat Ribbed Shell (FRS), Vaulted Shell
Honeycomb Core (VLHC), Flat Sandwich Shell Honeycomb Core (FLHC), Y
Braced Box Fuselage and the modified fuselage designed with Y brace
replaced by vaulted shell configurations. However all these configurations still
inevitably have structural weight penalty compared with optimal tube fuselage
layout. This current study intends to focus on finding an optimal configuration
with minimum structural weight penalty for a flying-wing concept in a preliminary
design stage.
A new possible inner wing configuration, in terms of aerodynamic shape and
structural layout, was proposed by the author, and it might be referred as
‘Wave-Section Configuration’. The methodologies of how to obtain a structurally
efficient curvature of the shape, as well as how to conduct the initial sizing were
incorporated.
A theoretical analysis of load transmission indicated that the Wave-Section
Configuration is feasible, and this was further proved as being practical by FE
analysis. Moreover, initial FE analysis and comparison of the Wave-Section
Configuration with two other typical configurations, Multi Bubble Fuselage and
Conventional Wing, suggested that the Wave-Section Configuration is an
optimal design in terms of weight saving. However, due to limitations of the
author’s research area, influences on aerodynamic performances have not yet
been taken into account
Influence of wing kinematics on aerodynamic performance in hovering insect flight
The influence of different wing kinematic models on the aerodynamic performance of a hovering insect is investigated by means of two-dimensional time-dependent Navier–Stokes simulations. For this, simplified models are compared with averaged representations of the hovering fruit fly wing kinematics. With increasing complexity, a harmonic model, a Robofly model and two more-realistic fruit fly models are considered, all dynamically scaled at Re = 110. To facilitate the comparison, the parameters of the models were selected such that their mean quasi-steady lift coefficients were matched. Details of the vortex dynamics, as well as the resulting lift and drag forces, were studied. The simulation results reveal that the fruit fly wing kinematics result in forces that differ significantly from those resulting from the simplified wing kinematic models. In addition, light is shed on the effect of different characteristic features of the insect wing motion. The angle of attack variation used by fruit flies increases aerodynamic performance, whereas the deviation is probably used for levelling the forces over the cycle.Aerospace Design, Integration and OperationsAerospace Engineerin
Reopening wounds: Processing Korean Cultural Trauma in Park Chan-wook’s Revenge Trilogy
Single page posterThe democratic reforms of the 1987 June 29 Declaration opened the floodgates for Korean New Wave films. The repeal of censorship regulations gave Korean filmmakers the autonomy to actualize their creative vision for the first time since Japanese colonialism. The result were films that grappled with the trauma of eighty years of colonialism, war, and authoritarian dictatorship through biting political commentary. This study explores Park Chan-wook’s representation of 한 (han) Korean cultural trauma in his New Wave films Oldboy and Sympathy for Lady Vengeance. Literature on trauma, film, and Korean history was reviewed and combined with film analysis to explain Chan-wook’s critique of revenge fantasies and conscious and unconscious ignorance. His films demonstrate that the only way to heal 한 is to acknowledge and accept all wrongdoing, even one's own, and mourn the consequences of the atrocities. While 한 is specific to Koreans, cultural trauma is not. From the effects of Apartheid in South Africa, the Rwandan Genocide, the legacy of slavery and ongoing atrocities committed against BIPOC Americans, the ubiquity of cultural trauma makes the lessons in Chan-wook’s works of paramount importance. While resolution of trauma is never final, Chan-wook’s films are both a guideline and a performance on how cultures can begin to heal in the face of moral atrocities
No separator-Chan Wing Wah
Electronic reproduction from Rulan Chao Pian Manuscript Collection
Social status and cultural consumption
The full-text of this book is not available in ORA, but you may be able to access the ebook version via the publisher copy link on this record page. Citation: Chan, T. W. (ed.) (2010) Social status and cultural consumption. Cambridge: Cambridge University Press
Symphony no. 5 for double orchestra
Side A. Symphony no. 5 for double orchestra / Hong Kong Philharmonic, conductor Chan Wing Wah (25:52) -- Side B. Symphony no. 4 : "Te Deum" for soprano, tenor, choir & orchestra / Hong Kong Oratorio Society, Hong Kong Sinfonietta (31:46).Chan Wing-Wah.Possibly reproduced from other commercial recording or radio broadcast (Pending for review)Electronic reproduction from Rulan Chao Pian Audio Cassette Collection.Various performers.Sung in Latin
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