5,824 research outputs found
Acoustic analysis and optimization of a performance automotive exhaust system.
No full textAvtomobili z notranjim izgorevanjem ustvarjajo različne hrupe, hrup izpušne cevi je med njimi najglasnejši. Potrebno je izvedeti, kakšne doprinose k dušenju zvoka imajo različni dušilni elementi celotnega izpušnega sistema in jih nato predelati in dodelati z uporabo simulacijskih orodij ter tako preveriti zvočno raven in padec le-te skozi celoten sistem. Pregledu celotne teoretične osnove izpušnih komponent in njihovega delovanja sledi preizkus v fizični obliki s pomočjo merilnih orodij nato pregled trenutno vgrajenih elementov sistema in predstavitev možnih nadgradenj ter udejanjanje teh v simulacijah. S pomočjo računalniških orodij primerjamo rezultate predelav s trenutnim izpušnim sistemom ter prikažemo primerjavo zvočne ravni simulacije in meritev in opredelimo verodostojnost tovrstne simulacije in morebitno nadaljnjo uporabo pri razvijanju izpušnih sistemov.Internal combustion automobiles produce a variety of noises, the loudest of which is the exhaust pipe noise. It is necessary to find out the contribution to sound attenuation of different silencing elements of the whole exhaust system and then to process and/or refine them using simulation tools to check the sound level and its drop through the whole system. An overview of the overall theoretical basis of exhaust components and their operation is followed by a physical test using measurement tools, then an overview of the currently installed system components and a presentation of possible upgrades and their implementation in simulations. Using computer aided tools, we compare results of the conversions with the current exhaust system and show the comparison betweeen simulated and physically measured noise levels to determine the validity of such simulations and possible further use in exhaust development
Do dolphins benefit from nonlinear mathematics when processing their sonar returns?
No full textAn interview with author Tim Leighton about the paper
Opportunities for linking young surveyors across professional surveying member organisations and FIG
No full textTim Di Muzio on 'Sabotage'
No full textIn a series of essays published in 2013 and 2014 on capitaspower.com, political economist Tim Di Muzio explored the concept of ‘sabotage’ as it applies to capitalist power. I recently rediscovered these essays and was so impressed by them that I have reposted them here as a single piece.
About the author: Tim Di Muzio is a researcher at the University of Wollongong. He is the author of numerous books, including Debt as power, Carbon capitalism, and The 1% and the Rest of us
1996-1997 Tim Gautreaux
No full textTim Gautreaux is the author of three novels and two earlier short story collections. His work has appeared in The New Yorker, The Best American Short Stories, The Atlantic, Harper’s, and GQ. After teaching for thirty years at Southeastern Louisiana University, he now lives, with his wife, in Chattanooga, Tennessee. (Photo credit: Randy Bergeron)https://egrove.olemiss.edu/grisham_res/1023/thumbnail.jp
First person - Tim Petzold
No full textFirst Person is a series of interviews with the first authors of a selection of papers published in Biology Open, helping researchers promote themselves alongside their papers. Tim Petzold is first author on ‘ Connexin 41.8 governs timely haematopoietic stem and progenitor cell specification’, published in BiO. Tim conducted the research described in this article while a PhD student in Julien Bertrand's lab at the Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Switzerland. He is now a postdoc in the lab of Holger Gerhardt at the Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany, investigating developmental biology – previously his focus was on how blood stem cells develop and now it has shifted to how the vascular system develops
Tim Seibles, 40th Annual ODU Literary Festival
No full textTim Seibles is the author of several poetry collections including Hurdy-Gurdy, Hammerlock, Buffalo Head Solos, and Fast Animal, which was a finalist for the 2012 National Book Award. In 2013 he received both the Pen Oakland Josephine Miles Award for poetry and an honorary Doctorate of Humane Letters from Misericordia University for his literary accomplishments. His latest collection, One Turn Around the Sun, has just been released. Tim is the current Poet Laureate of Virginia and is a Professor of English at Old Dominion University where he teaches literature as well as classes in the MFA in writing program
Tim Seibles, 39th Annual ODU Literary Festival
No full textTim Seibles is the author of several poetry collections including Hurdy-Gurdy, Hammerlock, Buffalo Head Solos, and Fast Animal, which was a finalist for the 2012 National Book Award. In 2013 he received both the Pen Oakland Josephine Miles Award for poetry and an honorary Doctorate of Humane Letters from Misericordia University for his literary accomplishments. His latest collection, One Turn Around the Sun, has just been released. Tim is the current Poet Laureate of Virginia and is a Professor of English at Old Dominion University where he teaches literature as well as classes in the MFA in writing program
Global Media Ideas - Infinite Pathways to Creative Succes - Tim Chang - Part One.mp4
No full textDuring the X Media Lab: Global Media Ideas summit in June 2011 media and technology writer Brad Howarth conducted interviews with industry experts for Creativeinnovation. This video is part one of Brad Howarth's interview with Tim Chang about his role as Partner at Norwest Venture Partners (Palo Alto). Tim focuses on investments in mobile, gaming, digital media, and also leads Norwest Venture Partners's investment practice in China and Asia-Pacific. Tim shares tips on how to get an introduction to a Venture Capital; the elements of a good pitch and follow-up. And what he looks at when considering a deal - The 3Ts: Team, Traction, Tier 1 co-investors
2015 MLK Lecture: Tim Wise
No full text2015 MLK Series Lecturer, anti-racism author and activist Tim Wise speaks on privilege and the harms of inequity
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