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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

A cepstrum-based acoustic echo cancellation technique for improving public address system performance

Hubbard, Stephen J. 08 1900 (has links)
No description available.
2

Potential uses of radio and public-address systems in the various school activities, with especial emphasis upon the English studies

Rudy, Francis T. January 1940 (has links)
No description available.
3

How shall they hear? a synthesis of concepts and solutions for church sound systems /

Jeffers, Michael W. January 1979 (has links)
Thesis (M.C.M.)--Western Conservative Baptist Seminary, 1979. / Includes bibliographical references (leaves 85-88).
4

Improving speech intelligibility with a constant-beamwidth, wide-bandwidth loudspeaker array

Winker, Douglas Frank, January 1900 (has links) (PDF)
Thesis (Ph. D.)--University of Texas at Austin, 2006. / Vita. Includes bibliographical references.
5

Using school public address (PA) systems to deliver nutrition messages to children /

Folta, Sara C. January 2005 (has links)
Thesis (Ph.D.)--Tufts University, 2005. / Adviser: Jeanne P. Goldberg. Submitted to the School of Nutrition Science and Policy. Includes bibliographical references. Access restricted to members of the Tufts University community. Also available via the World Wide Web;
6

Improving speech intelligibility with a constant-beamwidth, wide-bandwidth loudspeaker array

Winker, Douglas Frank 28 August 2008 (has links)
Not available / text
7

Enskifteshagens offentliga rum : En studie om parken som kommunikativ arena inom ramen för stadsutvecklingsprojektet Amiralstaden / The publicness of Enskifteshagen : A study about the park as a communicative space

Jeppsson, Moa January 2022 (has links)
Denna studie syftar till att undersöka hur parken Enskifteshagen formas som offentligt rum i Malmö stad, inom ramen för kommunens stadsutvecklingsprogram Amiralstaden. Detta med avseende på hur publics, eller intresseformationer, skapas. Utforskandet av publics är ett relevant studieområde då det belyser demokratiska aspekter av det offentliga rummet ur ett bredare perspektiv på offentlighet än enbart relaterat till synlighet på, eller tillgång till, en viss plats. Genom att utgå från att offentlighet skapas i spänningsfältet mellan olika gruppers intresseanspråk, speglat i mediala budskap såväl som på platsen i sig, vidgar perspektivet kring publics hur vi kan utforska det offentliga rummet och förstå dess roll för demokratiska utbyten i staden. För att undersöka Enskifteshagens offentliga rum har tre informantintervjuer med Malmö stad och 20 snabbintervjuer med parkanvändare utförts under våren 2019, liksom dokumentstudier, medieanalys och observationer i parken. Resultatet visar att Malmö stads inriktning mot social hållbarhet till stor del avspeglas i Enskifteshagen genom kommunens fokus på upprustning samt främjande av aktiviteter i parken. Detta blir särskilt påtagligt i stadens pressklipp, där Enskifteshagen blir en spegel för Malmö stads identitetsskapande och ambition att skapa social hållbarhet genom att sammanföra människor mellan olika stadsdelar. Parken kan även kopplas till satsningar för att skapa attraktivitet i området, till exempel genom BID Sofielunds inflytande i dess utveckling. Enskifteshagen formas även av rörelser underifrån och kan kopplas till demokratiska värden av det offentliga rummet, såsom utveckling av sociala identiteter och gemensamma intressen, vilket blir tydligast i odlingsnätverket. Staden kan vara en viktig aktör i främjandet av publics genom att bistå med olika resurser. Studien belyser även hur starka aktörer kan begränsa olika intresseformationer genom reglering av det offentliga rummet, vilket relaterar till maktutövande och dominerande normer i samhället.  Studien mynnar ut i slutsatsen att Enskifteshagens offentliga rum är ett resultat av en ständigt pågående process som formas av Malmö stads områdesutveckling, fastighetsägarintressen, medieskildringar, utformning och inte minst av parkanvändarna själva. Parken får en viktig funktion som ett offentligt rum genom att vara både en fysisk och en kommunikativ plats för olika grupper att komma samman på, och uttrycka delade intressen igenom, i spänningsfältet mellan olika intressen och värden i samhället. / This case study investigates how the park Enskifteshagen, in Malmö city, is being shaped as a public space with regard to the creation of publics, or interest formations, within the framework of the urban development program Amiralstaden. The exploration of publics is a relevant field of study since it illuminates democratic aspects of the public space from a broader perspective on publicness than only related to visibility or access to the physical space itself. By assuming that publicness is something that is created within the tension of different interests reflected in media representations as well as in the physical environment itself, the framework of publics broadens how we can explore public space and understand its role for democratic exchange in the city. Enskifteshagen is of special interest as a study object because of the park's location between different socio-economic parts of the city and given the municipality’s planning focus on creating democratic meeting places for a socially sustainable city.  The investigation was executed as a case study in the spring of 2019. Three interviews with officials at the municipality were conducted, as well as 20 interviews with people in the park. A document study, media analysis and observations in the park were also carried out as a part of the investigation.  The results show that the city’s focus on social sustainability is largely reflected in Enskifteshagen, through the municipality's efforts aimed at refurbishing and promoting activities in the park. This is particularly noticeable in the city’s communication efforts, where Enskifteshagen becomes a mirror for Malmö stad’s image building and ambition to create social sustainability by bringing people from different parts of the city together. The park can also be linked to investment interests to improve attractiveness of the area, regarding the influence of BID Sofielund in its development. Enskifteshagen is also shaped by its users and can be put in relation to democratic aspects of the public space through the development of social identities and common interests, such as the cultivation network. The city can play an important part in the promotion of publics by assisting with various resources. The study also highlights how strong actors can limit different publics through regulation of public space, which relates to the exercise of power and dominant norms in society.  The study concludes that the publicness of Enskifteshagen is a result of a constantly ongoing process shaped by the municipality’s area development, interests of property owners, media portrayals, design aspects and by the park users themselves. The park plays an important part as a public space in the city by being both a physical place and a communicative arena, for people to gather in as well as express themselves through, within the tension of diverse interests and values ​​in society.
8

The aperiodically dampened loudspeaker system

Short, George Elliott III 21 November 2012 (has links)
The theory of the aperiodically damped loudspeaker system is derived and investigated in both the time and frequency domains. The advantages of the aperiodic configuration over sealed box loudspeaker systems are discussed. The aperiodically damped loudspeaker system is described by the parameters used for sealed box loudspeaker systems, with some additions. A real system is constructed which takes full advantage of aperiodic configuration, and its performance is compared with a sealed box system of the same dimensions. Complete derivations of the theory for both the sealed box and aperiodically damped systems are included, as well as methods for measuring all required parameters. / Master of Science
9

Changement des normes communicatives en allemand contemporain : mots et discours / Change of communicative norms in contemporary german : words and speech

Gautherot, Laure 13 November 2015 (has links)
Cette thèse sur le changement des normes communicatives en allemand contemporain se positionne dans le paradigme explicatif du changement linguistique par Rudi Keller, connu sous le nom de « théorie de la main invisible ». L’objectif de recherche est de montrer par l’analyse de cinq faits « variants » que le changement des normes communicatives a lieu sous l’impulsion d’un désir des locuteurs germanophones contemporains de plus d’authenticité et de respect de l’autre. Cette mentalité communicative, héritée de la remise en cause sociétale par les mouvements contestataires de la fin des années 1960, conditionne les attentes des locuteurs germanophones dans la réception des discours publics en terme d’ethos et de positionnement éthique. Au corpus sur lequel sont effectuées les analyses linguistiques des cinq faits variants – les « mots à charge négative » (ou « belastete Wörter »), les néologismes euphémistiques, la neutralisation du genre, l’ethos des locuteurs politiques, le tutoiement d’adresse – composé de documents prescriptifs universitaires, de discours politiques, et de supports publicitaires de l’espace public allemand, s’ajoute un corpus de réception relevant du type épilinguistique, composé de métacommentaires de locuteurs non-spécialistes. L’étude révèle la parole des locuteurs ordinaires comme signe annonçant et accompagnant le changement linguistique. / This PhD dissertation focuses upon the change of communicative norms in contemporary German and positions itself on the explanatory paradigm of language change by Rudi Keller,also known as “the theory of the invisible hand”. My research aims at pointing out – through the analysis of five “variant” facts – that the change of communicative norms is driven by the desire of contemporary German native speakers for more authenticity as well as respect for the other. The communicative mentality inherited from the counter-culture movements in the late 1960’s that challenged society order influences German native speakers’ expectations towards the reception of public discourses in terms of ethos and ethical positioning. In addition to the corpus upon which the linguistic analyses of the five variant facts are carriedout – the “negative words” (or “belastete Wörter”), euphemistic neologisms, gender neutralisation, the ethos of politicians, being on first name terms with someone – which consists of prescriptive college documents, political discourses and the advertising supports ofthe German public space – , there is a reception corpus that amounts to epilinguistic type and is composed of metacomments from non-specialist speakers. The study brings the speech ofordinary speakers to the fore as a sign that announces and goes along with language change.
10

Maximal Proposition, Environmental Melodrama, and the Rhetoric of Local Movements: A Study of The Anti-Fracking Movement in Denton, Texas

Hensley, Colton Dwayne 12 1900 (has links)
The environmental problems associated with the boom in hydraulic fracturing or "fracking," such as anthropogenic earthquakes and groundwater contamination, have motivated some citizens living in affected areas such as Denton, Texas to form movements with the goal of imposing greater regulation on the industry. As responses to an environmental threat that is localized and yet mobile, these anti-fracking movements must construct rhetorical appeals with complicated relationships to place. In this thesis, I examine the anti-fracking movement in Denton, Texas in a series of three rhetorical analyses. In the first, I compared fracking bans used by Frack Free Denton and State College, Pennsylvania to distinguish the argumentative claims that are dependent on the politics of place, and affect strategies localities must use in resisting natural gas extraction. In the second, I compare campaign strategies that use local identity as a way of invoking legitimacy, which reinforces narrative frameworks of environmental risk. In the third, I conduct and analyze interviews with anti-fracking leaders who described the narrative of their movement, which highlighted tensions in the rhetorical construction of a movement as local. Altogether, this thesis traces the rhetorical conception of place across the rhetoric of the anti-fracking movement in Denton, Texas, while seeking to demonstrate the value of combining rhetorical criticism with rhetorical field methods.

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