4,080 research outputs found
Keynote: Jon Gertner
No full textThe symposium will start on the evening of April 16 with a keynote address by Jon Gertner. Jon is a journalist, historian, and feature writer for The New York Times Magazine
as well as the author of the NYTimes bestseller, The Idea Factory. His address will focus on the issue of intellectual property and the ethical questions around the huge amount of human-generated content that large language models use as they are developed
Active control of low frequency ‘buzz-saw’ tones radiated from an aircraft engine on take off
No full textThis thesis details a feasibility study into the use of active control for the attentuation of the low frequency components of the ‘buzz-saw’ sound field radiated from an aircraft engine on take off. Passive liner sections are currently used to attenuate the sound field, however, they have insufficient thickness to attenuate sufficiently the very low frequency components of the sound field. An active control system positioned after the liner section could be used to further attenuate the sound field. This thesis shows that due to the simple modal structure of the buzz-saw noise, effective control of the sound field can be achieved by minimising the sum of the square pressures at a single ring of error sensors using a single ring of control actuators. In the absence of noise and extraneous modes, the level of control performance is fundamentally limited by the level of the evanescent modes at the error sensor array. An analytic model is developed which predicts the sound power reduction. Reflections are shown to be important in the control mechanism with standing wave regions identified between the secondary source array and the exhaust termination and between the inlet termination and the error sensor array. The thesis concludes with the results from an experimental rig. A real-time FXLMS algorithm is used to control a synthesised low order spinning mode by minimising the sum of the squared pressures measured at a single ring of 7 sensors using a simple ring of 7 control actuators. The relationship between sound pressure reduction at the error sensors and the transmitted sound power is investigated. Sound power reductions of up to 14.5dB are achieved. The control mechanism is identified from computer simulation.</p
Jon Mirande eta ironia
No full textLa ironía es un elemento que ha ido siempre unido a la poesía, y especialmente a la poesía moderna.Tras un pequeño repaso a esta en diferentes épocas, se pasa a describir las tres diferentes ironías de Jon Mirande: la intelectual, la social y la filosófica. Todo ello acompañado de ejemplosIrony is an element that has always been united to poetry, and especially to modern poetry. After a small revision of irony in different eras, the author then describes the three different ironies of Jon Mirande: intellectual, social and philosophical irony. All this illustrated with example
Science-based catchment management is evolving along the Great Barrier Reef of Australia
No full textThe Great Barrier Reef (GBR) is the world's largest reef system (with about 12% of the world's coral reef area) and almost the whole area is covered by a multi-use marine park. About 33% of the Great Barrier Reef (GBR) is completely protected from fishing and exploitation. However, the GBR is particularly vulnerable to terrestrial runoff of sediments, nutrients and pesticides, especially from expanding and intensifying agriculture. The GBR is located on a shallow and wide continental shelf that traps incoming materials from 35 major river catchments along the more than 2300 km length. Therefore, reducing the damage coming from these catchments presented a particularly challenging task for management. The initial focus for management was to address the obvious direct inputs of pollutants from urban areas, such as discharges from
sewage treatment plants, by regulating waste management facilities and establishing best practice standards. However, the science was beginning to identify that the discharges from agricultural lands into rivers was providing a far greater proportion of pollutants (more than 80%). Therefore, this task needed, and has since received, robust scientific evidence and strong public support to show that conservation of the GBR is important. However, there was vigorous debate until the early 2000s about whether river runoff was really a problem, and if it was, then what should be done to reduce the effects of terrestrial runoff on such a large system
Catchment management in a dry tropical river near the Great Barrier Reef
No full text[Extract] The Burdekin River is one of the largest catchments (133 000 km2) within the Great Barrier Reef (GBR) catchment area. It is also the largest contributor of sediments to the Great Barrier Reef lagoon. Land use within the catchment is dominated by two main agricultural industries: rangeland beef grazing across most of the catchment area (about 120 000 km2); and intensive, irrigated sugarcane cultivation in the lower coastal plain. The annual rate of sediment delivery is now 8 times higher than it was at the time of European settlement of the catchment in about 1850; the increased sedimentation is due to increased erosion associated with low vegetation cover from dry land grazing.
With the introduction of grazing on the catchment in about 1860, initially sheep, but after 1865 predominantly cattle, erosion increased greatly as did sediment loads from the river to the GBR lagoon. The first cattle raised were British breeds (Shorthorn and Hereford; Bos taurus) but in the 1960s these breeds were replaced with more drought and tick resistant breeds from India, particularly those developed from Brahmin and Zebu (Bos indica) breeds. These newer breeds were much more adapted to tropical conditions and could survive better through droughts increasing greatly the reduction in pasture cover and increasing erosion further (see Cover photo)
Jon Pineda, 32nd Annual ODU Literary Festival
No full textJon Pineda is the author of The Translator\u27s Diary, winner of the Green Rose Prize for Poetry, and BIrthmark, winner of the Crab Orchard Award Series in Poetry Open Competition. His memoir, Sleep in Me, is forthcoming in 2010 from the University of Nebraska Press. He teaches in the low-residency MFA program at Queens University of Charlotte
Interview with Jon Baskin--May 15, 2015
No full textJon Baskin is co-founder and editor of The Point magazine in Chicago. He is also a graduate student at the University of Chicago's Committee on Social Thought and the author of many essays and works of criticism for venues such as The Los Angeles Review of Books, The Nation, n+1, The New York Observer, BookForum, Salon, and The Point. Earlier in his career he was a fact checker for various magazines, including Popular Science, Inc Magazine, The Atlantic Monthly, and n+1. The interview was conducted at the office of The Point in Chicago on May 15, 2015.1_izzia9z
Jon Sands, 41st Annual ODU Literary Festival
No full textJon Sands is the author of The New Clean (2011), as well as the co-host of The Poetry Gods podcast. His work has been published widely, and anthologized in The Best American Poetry. He’s a youth mentor with Urban Word-NYC, and teaches creative writing for adults at Bailey House in East Harlem (an HIV/AIDS service center). He’s a recent MFA graduate in fiction from Brooklyn College, where his work won the Himan Brown Award for short stories, and he has represented New York City multiple times at the National Poetry Slam. He lives in Brookly
Essay piece by Jon Hawkins on an altercation that broke out in Portland\u27s Old
No full textEssay piece by Jon Hawkins on an altercation that broke out in Portland\u27s Old Port on Dec. 31 that was characterized by police as a riot. The author, who was the disc jockey at an Old Port pub that night and witnessed the incident, claims the 12 people arrested were reacting to excessive force being used by the police department
Third City - Electro-acoustic music performance
No full textThird City formed recently from the embers of an intended one-off electro acoustic improv show in Preston. Although having worked in various combinations of two in the past, Jon Aveyard, Carl Brown, Josh Horsley and Dan Wilkinson decided to pool their talents to form this supergroup of electro-acoustic musicians.
Creating direct, short and structured improvisations using a wide variety of sound sources, the aim is to dive straight into the good stuff and then quit whilst ahead, yet still retain the precariousness and enchantment that comes about through improvisation
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