Academic literature on the topic 'Mackay Show'
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Journal articles on the topic "Mackay Show"
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Fingas, Mervin F., Mark A. Bobra, and Ronald K. Velicogna. "LABORATORY STUDIES ON THE CHEMICAL AND NATURAL DISPERSABILITY OF OIL." International Oil Spill Conference Proceedings 1987, no. 1 (April 1, 1987): 241–46. http://dx.doi.org/10.7901/2169-3358-1987-1-241.
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ABSTRACT We have reviewed the laboratory testing of the chemical and natural dispersion of oil, noting the weaknesses of the Mackay test and comparing it to other methods. Results of both chemical and natural dispersion tests show that anomalous test results are produced in the Mackay apparatus at 0° C. This is attributed to preferential viscous shearing when the oil viscosity is 30 to 200 centistokes (cs). A new test uses a small swirling flask. Dispersant effectiveness results for ten oils from the Mackay, Labofina, and swirling flask tests were compared and the correlation found to be low. Results from the new swirling flask test correlate well with physical property data, especially viscosity. Each laboratory test produces somewhat unique results, and no way has yet been found to determine which test most accurately represents reality.
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Smith, C., and B. Lee. "The MacKay Phenomenon: Is it All Hand-Waving?" Perception 26, no. 1_suppl (August 1997): 359. http://dx.doi.org/10.1068/v970340.
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When a table-tennis bat with a light-bulb in its centre is waved about by another person in a stroboscopically lit room, the light appears to float free from the bat, although it is physically fixed. A related phenomenon was reported originally by MacKay [1958 Nature (London)180 507 – 508)]. This illusion disappears in an active condition, where observers move the bat with their own hands, which suggests a proprioceptive basis for the illusion. In our implementation with a Power Macintosh computer, the illusion occurred in both conditions. Thus ‘hand-waving’ is not inherent to the illusion but may exert its effect indirectly by promoting predictive eye-tracking movements. To test the hypothesis that the perceived position of the bulb is extrapolated between a visual icon, tied to retinal coordinates, and its actual physical location thus causing the displace-ment illusion, we performed two experiments. From experiment 1 we found that for simple one-dimensional movement, the displacement illusion occurs only when there is a change in direction such that the bulb appears to ‘overshoot’ the bat. In experiment 2, using random two-dimensional movement, we manipulated the length of the dark (non-visible) period. The overshoot increased from around 30 min arc at 65 ms to around 60 min arc at 300 ms. For longer dark periods (up to 2000 ms), the illusion occurred providing the change in direction was within the 300 ms window after stimulus offset. These results show that during discontinuous illumination, perceived location is determined by extrapolation.
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Kariya, Shin, Mitsuhiro Okano, Takaya Higaki, Tomoyasu Tachibana, Toru Rikimaru, and Kazunori Nishizaki. "Lund–Mackay Computed Tomography Score Is Associated With Obstructive Pulmonary Function Changes in Chronic Cough Patients." American Journal of Rhinology & Allergy 33, no. 3 (January 18, 2019): 294–301. http://dx.doi.org/10.1177/1945892418825094.
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Background A remarkable relationship between upper airway conditions and lung diseases has been reported. At the same time, sinonasal findings in chronic cough patients have not been fully examined. Objective The purpose of this study is to show paranasal sinus findings and lung function in chronic cough patients without asthma and chest X-ray abnormalities. Methods A total of 1412 patients with persistent cough were enrolled in this study. Of these patients, 376 patients were evaluated for further examination, as the patients with asthma and/or chest X-ray abnormality were excluded from the study. Normal control subjects without any chronic respiratory symptoms were also recruited. Pulmonary function was examined by spirometry. A bronchial obstruction reversibility test was applied. The Lund–Mackay computed tomography (CT) score, peripheral blood eosinophil count, and immunoglobulin E concentration in serum samples were examined. The Sino-Nasal Outcome Test was used to determine the severity of clinical symptoms. Results The patients with an abnormal soft tissue shadow in the paranasal sinus had significant obstructive lung function. The percent predicted forced expiratory volume in 1 second (FEV1.0) and the FEV1.0/forced vital capacity ratio negatively correlated with Lund–Mackay CT scores both before and after bronchodilator inhalation. There was a statistically significant correlation between pulmonary function and eosinophil count. Conclusion The patients with chronic cough frequently had paranasal sinus abnormalities. The Lund–Mackay CT score may be useful for assessing the condition of the lower airway in chronic cough patients. Upper airway examinations should play a part in the management of chronic cough.
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Dudvarski, Zoran, Ljiljana Janosevic, Ivica Pendjer, Vojko Djukic, Snezana Jesic, Milovan Dimitrijevic, and Nenad Arsovic. "Impact of rhinosinusal polyposis on CT score in patients with chronic rhinosinustis." Vojnosanitetski pregled 67, no. 3 (2010): 209–12. http://dx.doi.org/10.2298/vsp1003209d.
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Background/Aim. Chronic sinusitis is a disease characterized with mucosal inflammatoion of nasal and paranasal sinuses for at least 12 weeks. In order to assess the extent and severity of inflammatory changes in paranasal sinuses CT score according to Lund-Mackay is the most commonly used. Recent studies show the possibility of existing different subtipes of chronic rhinosinusitis, pointing out the presence of nasal polyps and their influence on the severity of chronic rhinosinusitis. The aim of this research was to examine the influence of sinonasal polyposis on the extensity of inflammatory changes on computerized tomography (CT), evaluated by the Lund-Mackay CT score. Methods. A prospective study compared the Lund-Mackay CT score values between the patients with chronic rhinosinusitis associated with nasal polyps and those without them. We determined mean values of the total CT score in both groups of the patients, as well as mean values of CT score for each group of sinuses and ostiomeatal complexes. Results. The study included 90 patients, 47 males and 43 females, 45-year old on average, diagnosed with chronic rhinosinusitis on the basis of diagnostic algorithm. The group with uncomplicated chronic rhinosinusitis (without nasal polyps) consisted of 30 patients and the group with complicated chronic rhinosinusitis (with nasal polyps) of 60 patients. Observing these two groups of patients revealed statistically highly important intergroup difference in CT score for each group of sinuses and ostiomeatal complexes. The mean value of total CT score in the group with uncomplicated chronic rhinosinusitis was 4.37 while in the group with complicated chronic rhinosinusitis it was 16.05 (p < 0.01). Conclusion. Chronic rhinosinusitis complicated by sinonasal polyposis is characterized with more extensive inflammatory changes on CT and, consequently, with higher CT score for each group of sinuses and ostiomeatal complexes, as well as higher total CT score.
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Milojevic, Michael. "Robert Mackay Fripp in the 1890s: Peripatetic Pacific Rim Architect." Architectural History Aotearoa 4 (October 31, 2007): 59–75. http://dx.doi.org/10.26686/aha.v4i0.6746.
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When the 30-year old English-born, Auckland-trained Robert Mackay Fripp (1858-1917) and his New Zealand bride left the port of Auckland in the late summer of 1888, they were headed for the bustling construction environment of post-fire Vancouver. Leaving his practice with C Paul, and his architectural design tutorship at the Auckland Society of the Arts, Fripp's was an astute career move. In the not quite eight years Fripp was based in Vancouver, he built and published almost 50 projects in British Columbia before he escaped the fast-approaching Vancouver recession and returned to Auckland in 1896. Attempting to put himself forward for more prestigious commissions in the Lower Mainland and Vancouver Island (which regularly went to Samuel Maclure), Fripp developed a national profile as an Arts and Crafts aesthete and designer with considerable international experience by publishing his drawings and reporting on the "West Coast scene" in the Toronto-based Canadian Architect and Builder (CAB). Among the local-interest articles there, which he consistently turned into a crabby proselytising for the Arts and Crafts, Fripp also placed both appreciative and critical articles and notes on Māori architecture and domestic design, and timber and construction in Auckland, and, even more surprisingly, he continued to do so throughout the 1890s, that is, long after he returned to New Zealand and set-up in partnership with GS Goldsboro' in Auckland. Meanwhile in the 33 months Fripp was back in Auckland from 1896 he realised a number of substantive and significant Auckland houses in Parnell, Grafton and Mount Eden. In these works I will show that he can be seen to have brought current "progressive" ideas from the West Coast about strongly-shaped shingled and half-timbered houses simply detailed with heavy timber to stand within the strong ocean coastal conditions. Fripp left for Victoria in 1899 and after some disappointing (losing the competition for Government House to Francis Rattenbury) months, during which he posted a scathing report in CAB about house design in Auckland, he moved to Los Angeles renting office space immediately adjacent to the Greene brothers executing and publishing a series of large (as yet undiscovered) houses in and around Santa Monica and Pasadena throughout 1900-5.
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Fingas, Merv. "A Review of Natural Dispersion Models." International Oil Spill Conference Proceedings 2014, no. 1 (May 1, 2014): 285471. http://dx.doi.org/10.7901/2169-3358-2014-1-285471.1.
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Natural dispersion occurs when fine droplets of oil are transferred into the water column by wave action or sea turbulence. Depending on oil conditions and the amount of sea energy available, natural dispersion can be insignificant or it can temporarily displace a portion of the oil. Current models predict the amount of oil entering the water column, but do not deal with their stability or how long these droplets stay in the water column. The most commonly-used model is by Delvigne, who carried out experiments in a flume. Delvigne measured the droplets entering the water column using a simplified procedure. These data were then converted to a model to predict the entry of droplets into the water column. Delvigne recommended procedures to calculate the resurfacing of the dispersed droplets but no models have implemented these. A review of the mathematics of this procedure show that the Delvigne model might be adjusted to be more unit consistent and to correctly incorporate oil viscosity. The other models used include the Audunson and Mackay models. These models are also reviewed. The Audunson model is simple and does not incorporate any inputs other than the wind speed. Further, the Audunson model predicts that most slicks will dissipate within a day or a few days. The Mackay model predicts little natural dispersion. Although the Mackay model incorporates a sea state function, the effect of this is not as great as in other models. Several issues have been noted about all natural dispersion models. These are: 1 In all cases natural dispersion models predicted the input of droplets into the water column and suggestions were made about predicting rise and resurfacing, but this important second part was never implemented by anyone,2 The natural dispersion predicted was measured as a temporary phenomenon - that is the instantaneous input of droplets into the water column. The persistence was not measured. The equation was designed to yield only the temporary transport in the water. Later workers assumed that the natural dispersion portion was permanently dispersed, and3 All models over-predict natural dispersion, especially in cases of low sea states.
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Francis, Gregory, and Stephen Grossberg. "Cortical Dynamics of Boundary Segmentation and Reset: Persistence, Afterimages, and Residual Traces." Perception 25, no. 5 (May 1996): 543–67. http://dx.doi.org/10.1068/p250543.
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In previous work with a neural-network model of boundary segmentation and reset, the percept of persistence was linked to the duration of a boundary segmentation after stimulus offset. In particular, the model simulated the decrease of persistence duration with an increase in stimulus duration and luminance. Further evidence is revealed for the neural mechanisms involved in the theory. Simulations show that the model reset signals generate orientational afterimages, such as the MacKay effect, when the reset signals can be grouped by a subsequent boundary segmentation that generates illusory contours through them. Simulations also show that the same mechanisms explain properties of residual traces, which increase in duration with stimulus duration and luminance. The model hereby discloses previously unsuspected mechanistic links between data about persistence and afterimages, and helps to clarify the sometimes controversial issues surrounding distinctions between persistence, residual traces, and afterimages.
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Ruseckienė, Rasa. "That Rune Will Unlock Time’s Labyrinth…: Old Norse Themes and Motifs in George Mackay Brown’s Poetry." Scandinavistica Vilnensis, no. 14 (May 27, 2019): 113–35. http://dx.doi.org/10.15388/scandinavisticavilnensis.2019.6.
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George Mackay Brown (1921–1996), an Orcadian poet, author and dramatist, was undoubtedly one of the finest Scottish creative voices of the twentieth century. He was greatly influenced by Old Norse literature, and this is reflected in his writings in many ways. The present article aims to trace and discuss Old Norse themes and motifs in Brown’s poetry. His rune poems, translations of the twelfthcentury skaldic verse, experimentation with skaldic kennings, as well as choosing saga personalities, such as Saint Magnus, Earl Rognvald of Orkney and others, as protagonists of the poems show the poet’s in-depth interest in the historical and literary legacy of his native Orkney and Old Norse culture in general.
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Kalińczak-Górna, Paulina, Kamil Radajewski, and Paweł Burduk. "Relationship between the Severity of Inflammatory Changes in Chronic Sinusitis and the Level of Vitamin D before and after the FESS Procedure." Journal of Clinical Medicine 10, no. 13 (June 27, 2021): 2836. http://dx.doi.org/10.3390/jcm10132836.
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There have been a few reports confirming that vitamin D (VD3) deficiency increases inflammation in the paranasal sinuses. The work brings new information that, despite the presence of inflammation before surgery, patients with higher vitamin D levels had less inflammation, and this has been proven on three levels. We show that vitamin D levels clearly correlate with the severity of the disease in chronic sinusitis. These results have been confirmed in imaging studies (Lund MacKay scale), endoscopy (Lund-Kennedy scale) and in the SNOT 20 questionnaire. 40 patients suffering from chronic sinusitis were divided into two equal groups: group 1: with less severe radiological changes (10 or less points on the Lund-Mackay scale), group 2: with a more advanced form (>10 points). The relationship between VD3 and the severity of the disease (clinical and nasal endoscopy) was assessed. The mean VD3 level in patients in group 2 before surgery was lower (23.01 ng/mL) than in group 1 (28.02 ng/mL) (p < 0.05). They presented a higher degree of advanced changes in all the above scales, i.e., before the SNOT 20 procedure, the mean was: group 1: 30.33, group 2: 31.80 (p < NS); Lund-Kennedy: group 1: 3.21, group 2: 6.30 (p < 0.05). After surgery an increase in VD3 levels was observed in both study groups: in group 1 to the value of 37.98 ng/mL (p < 0.002) and in group 2 to 27.67 ng/mL (p < 0.004). Lower VD3 levels were found in patients with a higher stage of the disease. Reduction of inflammation increases the level of VD3 and reduces subjective and objective symptoms of chronic inflammation.
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Taylor, Charles L., K. Michael Cline, William D. Page, and David P. Schwartz. "The Borah Peak, Idaho Earthquake of October 28, 1983—Surface Faulting and Other Phenomena." Earthquake Spectra 2, no. 1 (November 1985): 23–49. http://dx.doi.org/10.1193/1.1585301.
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The Borah Peak Earthquake of October 28, 1983 occurred near MacKay, Idaho with about 42 km (26 mi) of complex normal-oblique-slip faulting on the Lost River fault. Associated with the surface faulting was strong ground shaking and dramatic cold-water geysers and hydrologic changes related to regional ground subsidence. Faulting occurred on pre-existing Quaternary-Holocene scarps as both single and en echelon traces with net vertical displacement of 2 to 3 m (6.6 to 9.8 ft) and up to 1 m (3 ft) of left lateral displacement. Although no earthquakes prior to 1983 are known to have been associated with this fault, there is abundant geomorphic evidence of late Quaternary activity. Other normal-slip faults in the basin and range of Idaho, Montana, Utah, and Nevada show similar geomorphic evidence of activity.
Dissertations / Theses on the topic "Mackay Show"
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Li, Wen Fei. "Comparison of media frame in Mainland China, Hong Kong and U.S. on two shoe-hurling issues." Thesis, University of Macau, 2010. http://umaclib3.umac.mo/record=b2150384.
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(9816983), Andrew Maybanks. ""Shut the gate": A social history of beef cattle exhibiting at the Mackay Show and its relationship to the region's beef industry." Thesis, 2003. https://figshare.com/articles/thesis/_Shut_the_gate_A_social_history_of_beef_cattle_exhibiting_at_the_Mackay_Show_and_its_relationship_to_the_region_s_beef_industry/13426811.
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"Shut the Gate" was a project initiated and sponsored by the Beef Cattle sub-Committee of the Mackay and District Agricultural, Pastoral and Industrial Association Inc., in collaboration with Central Queensland University. Its goal was to research, write and publish an attractive, engaging and informative account of the history of cattle showing in Mackay, with particular emphasis on the relationship between the regional industry and the 123 year old annual Mackay Show. While the project throws considerable light on the influence that cattle showing has had on the development ofthe beef industry, and the important role it plays in generating and maintaining a positive awareness of the industry among town folk, it is essentially about people. The book celebrates the trials, tribulations and triumphs of those who breed, raise, and compete with beef cattle in the Mackay district. "Shut the Gate" was a commissioned work, with the Beef Cattle sub-Committee its primary sponsor. The essential brief was to prepare 'a readable social history' for possible publication. This in effect meant that the book needed to be written in a style accessible to its anticipated target audience, such as participants in the beef industry, rural primary producers, regular patrons of the Mackay Show, and local history enthusiasts. Its content and tone therefore, reflects this audience. It is a work ofacademic scholarship presented in the form of a textually accessible local history that is not only informative but also a pleasurable experience for the intended reader. The book is introduced by a dissertation that reflects on the research and writing process.
Books on the topic "Mackay Show"
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Chen, Yingxian. Zhonghua gui bao: Qin qin Zhonghua yi shu gong zuo fang shou ce. Aomen: Aomen Tebie Xingzhengqu zheng fu wen hua ju, 2003.
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Howcroft, Sharalyn D. A Textual and Archival Reexamination of Lucy Mack Smith’s History. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780190274375.003.0011.
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Previous scholarly treatment of the history of Lucy Mack Smith has explained the work of Martha and Howard Coray in editing and compiling it. In “A Textual and Archival Reexamination of Lucy Mack Smith’s History,” Sharalyn D. Howcroft applies the archival principle of fonds to the history by reconstructing the original order of the rough manuscript inscribed by Martha Coray, shedding light on the history’s composition methodology and on its extant and non-extant manuscripts. Handwriting in the rough manuscript indicates Martha inscribed roughly half of the history before her husband Howard began editing it. The lack of textual indicators for dictated text suggest the rough manuscript is largely Martha’s composition, probably based on notes of her interviews with Smith. Howcroft also shows that the rough manuscript and extant fair copy are likely the amalgamation of two separate manuscripts, providing evidence that the history is a work of social publication.
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Parks, Lisa. Water, Energy, Access. University of Illinois Press, 2017. http://dx.doi.org/10.5406/illinois/9780252039362.003.0005.
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This chapter describes a particular rural configuration of Internet infrastructure in Zambia. It shows that access in this location is contingent on water resources, which not only generate hydroelectricity for the Zambian power grid but are also necessary for prospective Internet users' everyday survival in the community of Macha. Understanding the materialization of Internet infrastructure in rural Zambia works to destabilize dominant discourses that posit ICT (information and communication technology) diffusion and adoption in rural Africa as a straightforward path to “modernization,” “development,” and “global integration,” and instead points to local political, economic, and cultural challenges to the Internet's globalization. The chapter then foregrounds the struggles and contestations that are part of infrastructure development; the energy and biopower that infrastructures rely on; the relationality of water, transportation, and information systems; and the alternate ways that people imagine, use, or respond to infrastructure.
Book chapters on the topic "Mackay Show"
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Li, Bin, Jiaying Zhang, Xuelei Zhang, and Zhongke Tian. "Research on Deformation Characteristics of SCP Foundation for HKZM Bridge." In Advances in Frontier Research on Engineering Structures, 435–43. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-8657-4_39.
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AbstractTo further determine the bearing capacity of sand compaction pile (SCP) composite foundation in the West artificial island of Hong Kong-Zhuhai-Macao (HKZM) Bridge, a large-scale in-situ load test system was designed to study the mechanical and deformation characteristic of SCP foundation. The test adopts the anchor pile method, the results show that the stress sharing ratio of the underwater SCP foundation under the same replacement rate is closely related to the load and time. With the increase of load level, the curve of stress sharing ratio decreases first and then increases. Under the same load level, the ratio decreases gradually with time and finally approaches a certain value. Based on the analysis of site monitoring data, the settlement law of SCP is clear, and the error of the empirical formula is found. The stress reduction ratio and empirical coefficient are proposed to correct the original formula. The research results in this paper can be used to guide the design and construction of SCP foundation of cross-sea project.
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Jin, Ying. "Spatial Economics, Urban Informatics, and Transport Accessibility." In Urban Informatics, 115–32. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-15-8983-6_8.
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AbstractOne central pillar in the development of urban science which is key to the development of simulation of models of urban structure is spatial econometrics. In this chapter, we outline the way in which ideas pertaining to accessibility which we define conventionally, as in transport economics, as the relative nearness and size of locations to one another, can be embedded in a wider econometric framework. We are thus able to explore how GDP (gross domestic product) of different locations is influenced by different spatial investments. To illustrate this, we first outline the intellectual context, followed by a review of the most relevant econometric models. We examine the data required for such models and look at various quantifications in terms of elasticities of business productivity with respect to transport accessibility, using ordinary least squares, time-series fixed effects, and a range of dynamic panel-data models which narrow down the valid range of estimates. We then show how the model is applied to Guangdong province (with its connections to Hong Kong and Macau), which is one of the three major mega-city regions and a leading adopter of new technologies in China.
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Braga, Adriana, and Robert K. Logan. "Communication, Information, and Pragmatics." In Advanced Methodologies and Technologies in Media and Communications, 1–11. IGI Global, 2019. http://dx.doi.org/10.4018/978-1-5225-7601-3.ch001.
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In this chapter, the authors first examine the meaning and significance of information, which will entail a critique of Shannon information theory. They show it is really a theory of the transmission of signals. They describe how MacKay and Bateson adds the element of meaning to the definition of information. They then examine the proposition of Kauffman et al. that organization is a form of information. Assuming that it is not possible not to communicate, the authors emphasize the pragmatic dimension of communication. They argue that information, communication, and social interaction are inseparable elements of production of meaning. Thus, as in any communication there are three simultaneous dimensions operating as a system—syntactic, semantics, and pragmatics—and it is also the case that information, communication, and social interaction are operating as a system.
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Wandschneider, Dieter. "Autonomy in Determinism." In The Paideia Archive: Twentieth World Congress of Philosophy, 128–34. Philosophy Documentation Center, 1998. http://dx.doi.org/10.5840/wcp20-paideia199816327.
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There are good reasons for determinism — the option for pure freedom of will proves to be a non-tenable position. However, this collides with the everyday experience of autonomy. The following argument will attempt to show that determinism and autonomy are compatible. (1) A first consideration going back to MacKay makes clear that I myself cannot foresee in principle my own determination; hence fatalism has lost its grounds. (2) From the perspective of physical determination, I show that quantum-physical indetermination is not at all in a position to explain autonomy, while from the perspective of systems theory physical determination and autonomy is well-compatible. (3) The possibility of knowledge denotes a further increase of such autonomy. From this perspective, acting is something like designing-oneself or choice-of-oneself. (4) Consciousness of not being fixed in principle now becomes a determining condition of my acting, which appears to be determined by autonomy. This explains the ineradicable conviction that freedom of will is essential for human beings. (5) I conclude that the autonomy of acting is greater the more that rational self-determination takes the place of stupid arbitrariness.
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Polis, Gary A., and Robert D. Holt. "Unified Framework I: Interspecific Interactions and Species Diversity in Drylands." In Biodiversity in Drylands. Oxford University Press, 2005. http://dx.doi.org/10.1093/oso/9780195139853.003.0013.
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The goal of this chapter is to delineate how abiotic conditions, regional processes, and species interactions influence species diversity at local scales in drylands. There is a very rich literature that bears on this topic, but here we focus on mechanisms that promote or constrain local diversity and ask how these factors apply to deserts. We ask, “What is different about deserts, relative to other habitats, in their patterns of diversity, temporal variability in productivity, and spatial heterogeneity?” We assess how such differences might modify extant theory, and sketch relevant examples. Compared with other biomes, productivity, population densities, and community biomass are much lower in deserts, and temporal heterogeneity is typically higher. Do these differences imply distinct ecological processes and patterns in deserts? Or, do processes operate in deserts in similar ways as in tropical forests or grasslands? For example, it is often assumed that abiotic factors are more important in deserts. If so, how do abiotic factors modify biotic interactions? How do we integrate physical and biotic interactions? More generally, we ask what should be the main goals and approaches of a research program to understand the role of species interactions in determining community structure in drylands, as modified by abiotic factors and regional processes. . . . What Is Different About Drylands? . . . Deserts are traditionally perceived as relatively simple ecosystems harboring low species diversity. Yet increasing evidence suggests that desert communities can be highly diverse and complex. To our knowledge the only systematic analysis of the relative diversity in desert versus nondesert communities was compiled by Polis (1991a). These data suggest that patterns differ widely among taxonomic groups. In some cases, deserts support high diversity, comparable to or even higher than nonarid areas (see Polis 1991b). For example, while avian (Wiens 1991) and anuran (Woodward and Mitchell 1991) diversities are low compared with other biomes, desert annual plants show extremely high species diversity (Inouye 1991). Ants, succulent plants, lizards, scorpions, and tenebrionid beetles also have relatively high diversity in deserts (Polis 1991a–c, Wiens 1991). But, while very high diversity may occur, local diversity varies greatly in space and time (e.g., ants and annual plants: Danin 1977, Inouye 1991, MacKay 1991).
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Dinda, Soumyananda. "Climate Change, Trade Competitiveness, and Opportunity for Climate Friendly Goods in SAARC and Asia Pacific Regions." In Advances in Environmental Engineering and Green Technologies, 515–36. IGI Global, 2016. http://dx.doi.org/10.4018/978-1-4666-8814-8.ch026.
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This paper examines trade performance of climate friendly goods using some trade indices for South Asia and Asia Pacific countries during 2002 - 2008. Climate friendly goods (CFG) are those goods which are less harmful to environment. Paper identifies performance of Asia Pacific region in CFG trade with other nations. Most of the countries in Asia are importers of climate friendly goods and technologies. The Comparative advantage analyses indicate that Hong Kong, China, and Japan have comparative advantage in the production of CFG goods. Pakistan, Sri-Lanka, and India prefer to trade in CFG regionally and have shown interest in production and trade of clean coal technologies (CCT). East and South East Asia regions have comparative advantage in Solar Photovoltaic Systems (SPVS) and Energy Efficient Lighting (EEL). Japan, China, Malaysia and Macao show good in 2008 for SPVS.
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Dinda, Soumyananda. "Climate Change, Trade Competitiveness, and Opportunity for Climate Friendly Goods in SAARC and Asia Pacific Regions." In International Business, 356–79. IGI Global, 2016. http://dx.doi.org/10.4018/978-1-4666-9814-7.ch017.
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This paper examines trade performance of climate friendly goods using some trade indices for South Asia and Asia Pacific countries during 2002 - 2008. Climate friendly goods (CFG) are those goods which are less harmful to environment. Paper identifies performance of Asia Pacific region in CFG trade with other nations. Most of the countries in Asia are importers of climate friendly goods and technologies. The Comparative advantage analyses indicate that Hong Kong, China, and Japan have comparative advantage in the production of CFG goods. Pakistan, Sri-Lanka, and India prefer to trade in CFG regionally and have shown interest in production and trade of clean coal technologies (CCT). East and South East Asia regions have comparative advantage in Solar Photovoltaic Systems (SPVS) and Energy Efficient Lighting (EEL). Japan, China, Malaysia and Macao show good in 2008 for SPVS.
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Maskell, Shayna L. "Do-It-Yourself Cultural Production." In Politics as Sound, 133–55. University of Illinois Press, 2021. http://dx.doi.org/10.5622/illinois/9780252044182.003.0006.
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In chapter 5, the hardcore ethos of Do-It-Yourself (DIY) is explored. This philosophy frames a discussion of hardcore performances and venues and delves into the ways in which DYI flyers—the marketing of hardcore shows—worked to fight against commodification and helped construct a sense of place and ownership for and of the scene. Local DC hardcore ’zines are also analyzed as a form of collective identity, with meaning(s) of the scene being negotiated through articles, reviews, and letters. Finally, Dischord Records, the independent label created by Ian MacKaye and Jeff Nelson is discussed, both as an attempt to decommodify music and as a form of power and agency.
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Chan, Catherine S. "Crossing Imperial Borders." In The Macanese Diaspora in British Hong Kong. Nieuwe Prinsengracht 89 1018 VR Amsterdam Nederland: Amsterdam University Press, 2021. http://dx.doi.org/10.5117/9789463729253_ch01.
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The lives of a Macanese clerk, a businessman and a newspaper editor reveal the dynamic and continuous relationship between Macau and Hong Kong. Owing to the lack of exciting opportunities in the Portuguese enclave, aspiring Macanese men braved their first move to British Hong Kong in 1842, pulled by pre-existing employment, partnerships and unfulfilled dreams. The arrival of the Macanese caused a domino effect, prompting Catholic missionaries to transfer their headquarters to Hong Kong where they would set up churches and schools that catered to a growing population. As against common perceptions of Macau as a ‘prelude’ to Hong Kong’s acquisition, this chapter shows how Macanese migrants created an unprecedented meeting point between the Portuguese and British imperial spheres.
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He, Jie, and Zhizheng Xie. "Engineering Effect Test and Inspection of the Evolution of the Seabed Level near the Artificial Island of the Hong Kong-Zhuhai-Macao Bridge." In Advances in Transdisciplinary Engineering. IOS Press, 2022. http://dx.doi.org/10.3233/atde220954.
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The Hong Kong-Zhuhai-Macao Bridge is located at the mouth of Lingdingyang Bay. The east and west artificial islands are on both sides of the Lingdingyang Dahao Deep Channel. The waters of the artificial islands are deep and rapid, and the currents impact the artificial islands frontally, which is likely to cause major changes and adjustments in the underwater topography near the artificial islands, eventually forming a new pattern of the local beach evolution centred on the artificial islands. In the engineering design stage of the bridge, the Lingdingyang two-dimensional tidal current and sediment mathematical model was used to simulate the underwater topography near the artificial island of the Hong Kong-Zhuhai-Macao Bridge based on the verification of the measured basic data. The simulated results show that the impact of the artificial island on the water and sand environment of the Lingdingyang waters is concentrated in the waters of 5 km upstream and downstream of the artificial island. The results of the erosion and deposition changes of the underwater topography before and after the construction of the artificial island from 2009 to 2019 show that the trend of the seabed erosion and deposition changes caused by the construction of the artificial island is basically consistent with the prediction results of the mathematical model, which provides good evidence for the applicability of the mathematical model.
Conference papers on the topic "Mackay Show"
1
Chern, Jyh-Long. "Delay-induced self-switching phenomena in a coupled optical bistable system: information structure and dimension change." In OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1993. http://dx.doi.org/10.1364/oam.1993.ws.8.
Full textAbstract:
Since time delays are inevitable in real systems, it is important to clarify the roles played by time delays in dynamics. We apply information theory and dimension analysis to analyze the chaotic self-switching time series resulting from a symmetry-recovering crisis in a coupled optical bistable system.1 Information flows embedding in complex time series are determined. Information transport shows novel structure for the time series with the characteristics of memory loss and recovery. Delay-induced effects on mutual information are investigated. High mutual information region within chaotic “sea”, which usually results in a pretty low mutual information, has been found. Unlike previous work on Mackey-Glass equation,2 our result suggests that more time delays are not necessarily increasing the dimension of attractor. Mutual information between individual outputs of the attractor with a smaller dimension can have either higher or lower mutual information. This work is supported by the National Science Council, ROC.
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Yu, Zhengxu, Shuxian Liang, Long Wei, Zhongming Jin, Jianqiang Huang, Deng Cai, Xiaofei He, and Xian-Sheng Hua. "MaCAR: Urban Traffic Light Control via Active Multi-agent Communication and Action Rectification." In Twenty-Ninth International Joint Conference on Artificial Intelligence and Seventeenth Pacific Rim International Conference on Artificial Intelligence {IJCAI-PRICAI-20}. California: International Joint Conferences on Artificial Intelligence Organization, 2020. http://dx.doi.org/10.24963/ijcai.2020/345.
Full textAbstract:
Urban traffic light control is an important and challenging real-world problem. By regarding intersections as agents, most of the Reinforcement Learning (RL) based methods generate actions of agents independently. They can cause action conflict and result in overflow or road resource waste in adjacent intersections. Recently, some collaborative methods have alleviated the above problems by extending the observable surroundings of agents, which can be considered as inactive cross-agent communication methods. However, when agents act synchronously in these works, the perceived action value is biased and the information exchanged is insufficient. In this work, we propose a novel Multi-agent Communication and Action Rectification (MaCAR) framework. It enables active communication between agents by considering the impact of synchronous actions of agents. MaCAR consists of two parts: (1) an active Communication Agent Network (CAN) involving a Message Propagation Graph Neural Network (MPGNN); (2) a Traffic Forecasting Network (TFN) which learns to predict the traffic after agents' synchronous actions and the corresponding action values. By using predicted information, we mitigate the action value bias during training to help rectify agents' future actions. In experiments, we show that our proposal can outperforms state-of-the-art methods on both synthetic and real-world datasets.
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Tomilin, Maxim G., Arkadi P. Onokhov, Michail V. Isaev, Vladimir V. Reznichenko, and Vladimir I. Kogan. "The liquid crystal glassess with local modulation." In Adaptive Optics. Washington, D.C.: Optica Publishing Group, 1996. http://dx.doi.org/10.1364/adop.1996.athc.23.
Full textAbstract:
A mack-up of a nematic liquid crystal (LC) glassess with local modulation has developed for wide application. Both design features of the LC sell and requirements to its are concedered. The processing technology is investigated for preperation new princple of local modulation . The modulator electro-optical responses obtained show the wider potentialities of the device application.
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Li, C. James, and T. Y. Huang. "Automatic Structure and Parameter Training Methods for Modeling of Mechanical System by Recurrent Neural Networks." In ASME 1997 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/imece1997-0402.
Full textAbstract:
Abstract Automatic nonlinear-system identification is very useful for various disciplines including, e.g., automatic control, mechanical diagnostics, and financial market prediction. This paper describes a fully automatic structural and weight learning method for recurrent neural networks (RNN). The basic idea is training with residuals, i.e., a single hidden neuron RNN is trained to track the residuals of an existing network before it is augmented to the existing network to form a larger and better network. The network continues to grow until either a desired level of accuracy or a preset maximal number of neurons is reached. The method requires neither guess of initial weight values nor the number of neurons in the hidden layer from users. This new structural and weight learning algorithm is used to find RNN models for a two-degree-of-freedom planar robot, a Van der Pol oscillator and a Mackey-Glass equation using their simulated responses to excitations. In addition, a RNN model is obtained for a real robot using its input and output measurements. The algorithm is effective in all four cases and RNN models were shown to be superior to linear models and hybrid models wherever the comparison was made.
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GAO, XIU-LI, PEI-YI HU, and FEI-RONG MENG. "SPATIAL CONNECTION CHARACTERISTICS AND DRIVING MECHANISM OF REGIONAL LOGISTICS IN GUANGDONG-HONG KONG-MACAO GREATER BAY AREA." In 2021 International Conference on Management, Economics, Business and Information Technology. Destech Publications, Inc., 2021. http://dx.doi.org/10.12783/dtem/mebit2021/35609.
Full textAbstract:
The paper adopted the entropy weight TOPSIS method and the gravity model to explore the characteristics of logistics spatial connection of Guangdong-Hong Kong-Macao Greater Bay Area that includes nine prefecture-level cities and two special administrative regions, and analyzed the driving factors of the formation of logistics spatial connection pattern by geographical detector model. The results shows that: There are obvious imbalance in the comprehensive capacity of logistics in different regions, and the cities around the Pearl River estuary are generally strong in the logistics quality, like Guangzhou, Shenzhen and Hong Kong. The total amount of logistics links in different cities is significantly various. The logistics connection between cities are mainly weak, and the strong links are concentrated between Hong Kong and Shenzhen. In addition, Hong Kong, Guangzhou and Shenzhen are the three core nodes of the regional logistics network in Guangdong-Hong Kong-Macao Greater Bay Area. Industrial structure, economic scale, population scale, consumption level, the development of post and telecommunications industry are the main factors for the formation of the logistics spatial connection pattern. Moreover, these factors have a prominent driving effect on the cities with large amount of logistics links.
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Reznichenko, Vladimir V., Vladislav V. Nicitin, Arkadi P. Onokhov, Michail V.Isaev, and Natalia L.Ivanova. "Design of optical wavefront corrector based on liquid crystal concept." In Adaptive Optics. Washington, D.C.: Optica Publishing Group, 1996. http://dx.doi.org/10.1364/adop.1996.athc.22.
Full textAbstract:
A mack-up of a nematic liquid crystal (LC) phase corrector has developed for application in adaptive optical systems. Both design features of the optical addressed spatial light modulators and requirements to its are concedered. Optical surface processing technology is investigated for preperation of the modulator individual components. The modulator electro-optical responses obtained show the wider potentialities of the device application as a phase corrector.
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Angarita, John, Daniel Doyle, Gustavo Gargioni, and Jonathan Black. "Input Excitation Analysis for Black-Box Quadrotor Model System Identification." In ASME 2020 Dynamic Systems and Control Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/dscc2020-3159.
Full textAbstract:
Abstract System identification provides a process to develop different dynamic models of varying structures based on user-defined requirements. For a quadrotor, system identification has been primarily in the field of off-white and grey-box models, but black-box models have the advantage of incorporating nonlinear aero-dynamic effects while also maintaining performance. For the identification, both a chirp and Hebert-Mackin parameter identification method waveform are used as inputs to maximize excitation while minimizing nonlinear responses. The quadrotor structure is defined by the an autoregressive with exogenous input (ARX) model, an autoregressive-moving-average (ARMAX) model, and a Box-Jenkins (BJ) models and then identified with the prediction error method. The black-box method shows that it maintains identification performance while improving upon the flexibility of different cases and ease of implementation.
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Zhang, Wei, Mingyuan Yang, Xiaolin Zhang, and Peipei Dong. "Study on the Characteristics of Temporal and Spatial Variation of Suspended Sediment in the Pearl River Estuary." In ASME 2009 28th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2009. http://dx.doi.org/10.1115/omae2009-79033.
Full textAbstract:
The Lingding Estuary is one of the main parts of the whole Pearl River Delta, which lies in the South Sea, China. It is about 60 km wide from Hong Kong in the east to Macao in the west and the water areas are approximately 2110 km2. The process of suspended sediment movement is influenced by many factors, such as the estuarine geometry, tidal range and ravine flows etc.. In this paper, large scale hydrological observations in the Lingding Estuary have been respectively carried out in July, 2003. Based on these data, characteristics of temporal and spatial variation of suspended sediment concentration (SSC) in the Lingding Estuary are studied. The research result shows that SSC changes with the variation of tide current and runoff, the sediment re-suspension is often occurred 1–2 hour following the flood or ebb tide. The maximum turbidity appears near the gauging station V3. In the flood dominant stage, the sediments move towards the mainland, while during the ebb sediments move down.
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Wang, J. P., G. Liu, S. Chang, and L. Y. Wu. "Topology Optimization of Gearbox to Reduce Radiated Noise." In ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/detc2015-48086.
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In this paper, topology optimization of gearbox to reduce the radiated noise is studied based on the analysis of modal acoustic contribution and panel acoustic contribution. Firstly, the bearing dynamic loads are obtained by solving the dynamic equations of gear system. Secondly, the vibration of gearbox is calculated using FEM and the radiated noise is simulated using BEM by taking these bearing dynamic loads as excitations. Thirdly, the panel having larger contribution to the sound pressure level (SPL) at a specific field point is found by panel acoustic contribution analysis (PACA), and this panel is taken as design domain. The mode order with larger contribution is determined by modal acoustic contribution analysis (MACA), and making corresponding natural frequency becomes far away from excited frequency is taken as a constraint. Finally, the topology optimization of gearbox is completed using SIMP method, and the ribs are arranged according to the optimization results. The results show that the equivalent sound pressure level at objective field point can be reduced obviously by using this method.
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Watmuff, Jonathan H. "Instability and Breakdown of a Zero Net Mass-Flux Jet in a Blasius Boundary Layer." In ASME 2009 Fluids Engineering Division Summer Meeting. ASMEDC, 2009. http://dx.doi.org/10.1115/fedsm2009-78588.
Full textAbstract:
Hot–wire measurements reveal the evolution of three-dimensional TS (Tollmien-Schlichting) waves and other nonlinear disturbances generated by a ZNMF (Zero Net Mass-Flux) jet. The base flow consists of a highly two-dimensional Blasius boundary layer with extremely small extraneous background disturbance levels (u/U1 < 0.08 %). The response is shown to be linear and symmetrical for sufficiently small actuator amplitudes and under these conditions the TS wave motions conform with the PSE (Parabolized Stability Equations) results of Mack & Herbert (1995). The observations suggest that a small-amplitude ZNMF jet would be a suitable device for active LFC (Laminar Flow Control) applications. For larger actuator amplitudes, other short–wavelength instabilities develop and grow with streamwise development and they ultimately breakdown to form a turbulent wedge. There is an actuator amplitude threshold below which these instabilities do not form, and a larger threshold below which the instabilities do not grow with streamwise development. The characteristics of the turbulent wedge are also considered in some detail.