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The Effect of White Noise on a Visual Discrimination TaskSmith, James Larry 01 1900 (has links)
Previous studies have demonstrated that in some instances certain types of auditory stimulation have facilitated a subject's ability at a visual task while in other instances, the subject's ability has been inhibited. The primary objective of this experiment was to investigate the effect of auditory stimulation upon a subject's performance on a visual discrimination task.
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Behaviour on the Length Test for Medium Sample SizesDittrich, Regina, Reschenhofer, Erhard, Bomze, Immanuel January 1993 (has links) (PDF)
In this note it is shown that even for relatively large sample sizes the asymptotic distribution of the smoothed length as derived in Reschenhofer and Bomre (1991) should not be used for the determination of critical values. Therefore extended tables of critical values for both the 1% and 5% levels of significance generated by simulation are presented. (author's abstract) / Series: Forschungsberichte / Institut für Statistik
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AN APPLICATION OF THE VIDEO MATCHED FILTERS IN PULSE TELEMETERING RECEIVERWentai, Feng, Biao, Li 10 1900 (has links)
International Telemetering Conference Proceedings / October 28-31, 1996 / Town and Country Hotel and Convention Center, San Diego, California / It is well known that the pulse telemetering system whose system equipment is simple is
superior to the continuous one in ultilizing signal power. But in designing a pulse
telemetering receiver the frequency shift problem is often encountered, the shift often
greatly wider than the signal bandwidth is very unfavorable for improving receiver working
sensitivity. Either to limit transmitter frequency stability strictly or to adapt AFC system in
receiver for tracking carrier wave can solve the problem above, the AFC system method
could improve the receiver’s performance, but the equipment is complicated. To what
extent the receiver working sensitivity will be effected and how to judge the effection in
case of adapting VF matched filter and RF being wideband in receiver are this paper’s
emphasis. In this paper the power density spectrum distribution of the white noise which
has passed through the non-linear system-the linear detector is analysed theoretically, and
the improved working sensitivity of the receiver with video matched filter and its
difference sensitivity value to that of the optimal receiver are derived. The tested working
sensitivity data of two kind pulse receivers with different RF bands are given and the
theoretical calculation results conform well with these data, thus it is proven that adapting
video matched filter in pulse receiver is a effective approach for compensating the receiver
working sensitivity dropping from RF bandwidth increase.
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Typer av brus : Implikationer för den auditiva komponenten i ganzfeldstudierLarsson Sundqvist, Max January 2009 (has links)
<p>Ett vanligt förfarande i parapsykologiska s.k. ganzfeldexperiment är att</p><p>med hjälp av vitt brus, som spelas upp i hörlurar, försöka omsluta</p><p>försökspersoner i ett slags totalt och oföränderligt perceptuellt</p><p>tillstånd. I föreliggande studie undersöks konsekvenserna av att</p><p>använda vitt brus som bakgrundsljud. 30 försökspersoner har lyssnat</p><p>till åtta ljudslingor innehållandes fyra typer av brus vid två olika</p><p>ljudnivåer, för att sedan i ett enkätformulär uppskatta hur dessa ljud</p><p>påverkat dem. Resultatet visar på signifikanta effekter av så väl</p><p>brustyp som amplitud, och dessutom en signifikant interaktionseffekt</p><p>dem emellan. Utifrån resultatet verkar valet av vitt brus brus som</p><p>akustisk komponent i ganzfeldstudier vara teoretiskt ogrundat och</p><p>direkt ofördelaktigt. Vidare diskuteras bakgrundsbrusets tänkbara</p><p>inverkan på försöksdeltagarnas förmåga att genomföra de uppgifter</p><p>som ingår i ett typiskt ganzfeldexperiment, och slutligen konstateras</p><p>att medan brunt brus förvisso verkar vara det mest omtyckta av</p><p>försöksdeltagarna, är det också det mest suggestiva. Därför synes skärt</p><p>brus vara ett lämpligare val av bakgrundsljud än något annat brus som</p><p>användes i undersökningen.</p>
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Typer av brus : Implikationer för den auditiva komponenten i ganzfeldstudierLarsson Sundqvist, Max January 2009 (has links)
Ett vanligt förfarande i parapsykologiska s.k. ganzfeldexperiment är att med hjälp av vitt brus, som spelas upp i hörlurar, försöka omsluta försökspersoner i ett slags totalt och oföränderligt perceptuellt tillstånd. I föreliggande studie undersöks konsekvenserna av att använda vitt brus som bakgrundsljud. 30 försökspersoner har lyssnat till åtta ljudslingor innehållandes fyra typer av brus vid två olika ljudnivåer, för att sedan i ett enkätformulär uppskatta hur dessa ljud påverkat dem. Resultatet visar på signifikanta effekter av så väl brustyp som amplitud, och dessutom en signifikant interaktionseffekt dem emellan. Utifrån resultatet verkar valet av vitt brus brus som akustisk komponent i ganzfeldstudier vara teoretiskt ogrundat och direkt ofördelaktigt. Vidare diskuteras bakgrundsbrusets tänkbara inverkan på försöksdeltagarnas förmåga att genomföra de uppgifter som ingår i ett typiskt ganzfeldexperiment, och slutligen konstateras att medan brunt brus förvisso verkar vara det mest omtyckta av försöksdeltagarna, är det också det mest suggestiva. Därför synes skärt brus vara ett lämpligare val av bakgrundsljud än något annat brus som användes i undersökningen.
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Characterization of operators in non-gaussian infinite dimensional analysisYablonsky, Eugene 05 September 2003 (has links)
No description available.
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Rethinking the dualism : Don DeLillo's White Noise and the ecocritical possibilities of the nature/culture mixBowman, Natalie A. 12 June 2003 (has links)
Rethinking the Dualism: Don DeLillo's White Noise and the Ecocritical Possibilities
of the Nature/Culture Mix questions current applications of ecocriticism and offers
that these applications are inadequate in dealing with the perceived nature/culture
dualism. This thesis suggests that ecocritics need to stop thinking in dualistic terms,
but instead must consider that the separation between nature and culture is an illusion
created by the postmodern culture. Don DeLillo's White Noise, then, is used to
illustrate the possibilities of rethinking the relationship between nature and culture.
DeLillo exposes the illusion of the dualism by constantly implicating humans in the
alteration of nature and, despite humans' attempts to live within the illusory dualism
by controlling nature through tecimology, by revealing that man's efforts will always
fail through unintended consequences. This thesis culminates by proposing that
considering nature and culture as connected entities that constantly reshape each other
will absorb dualistic thinking and provide opportunities for ecocritics to expose truths
that are vital to fueling the desire to alter destructive relationships between nature and
culture. / Graduation date: 2004
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¡§Pervasive Perversion¡¨: Reconfiguring the Subject¡¦s Relationship with the Other in Don DeLillo¡¦s White NoiseLiang, Shuo-en 04 February 2010 (has links)
For the readers of White Noise, the first issue he or she has to deal with is the relationship between the society and the individual. But DeLillo was never straightforward in Jack¡¦s narrative. From time to time, the reader is asked to judge by themselves about the authorial intention and the narrator¡¦s attitude toward the characters¡¦ suffering. As both the narrator and a character, Jack Gladney typifies the tension of locating the hope of resistance in a seemingly hopeless situation. As the narrator, Jack¡¦s attitude toward the corrupting force of the society would seem to vacillate among indifference and affirmation. Yet, his indifference would appear to be sarcastic or even accusatory if one remembers that he or she is reading one of DeLillo¡¦s novels. The interpretive deadlock, then, can be summarized into the following question: if DeLillo intended to posit the possibility of resistance through the process of writing and reading, how can it be realized in the protagonist with whom the reader is invited to identify? Numerous approaches are adopted by the critics, and yet the enigmatic ending of the novel continues to challenge the results of their efforts. With ease, Jack Gladney returns to his normal routine after he nearly kills a man, but it is indicated that he is never the same person as exhibited in the previous chapters.
To determine the nature of transformation and its implication for the existence of hope, this thesis sets out to dissect the important elements in the last chapter. As the novel ends in Jack¡¦s shopping, the chapter two of this thesis traces the influence of capitalism on the characters. It is found that the characters¡¦ enjoyment of the consumerism is correlative with a fundamental imperfection in their sense of self. In narrating the stories about him, Jack Gladney cannot hide his anxiety for failing to be a good professor, husband and father. From a Lacanian perspective, the disjointedness reveals the failure of the system to provide all his needs. Still, Jack and others are spurred to immerse harder in the ever-revolutionizing mode of enjoyment, endlessly deferring from confronting the void inherent in all their pursuits.
Before Jack returns to shop for the last time in the novel, however, he is infected by toxic substance that causes him to eye the capitalist system with suspicion. During the outbreak of the disaster, the New Age belief system, painful enjoyment and environmental crisis are associated with the oppressive force of capitalist development. They all reappear in the end of the novel, yet they are no longer threats for Jack; instead, he finds them enjoyable. In the chapter three of this thesis, my analysis recounts how the characters¡¦ reluctance to depart from their routine of enjoyment contributes to their intentional disavowals of the injuries the system brings to them. In Jack¡¦s case, the biopolitical control that results in the elevation of the status of medical science and enjoyment causes him to resubmit himself more violently to the system. He becomes a killer and enjoys seeing himself as such who seems to contribute to all the subjects in the capitalist society. It is after such sad transformation that the final chapter begins, suddenly deflating the emotional turbulences accumulated throughout the previous chapters. The enigmatic vacuum is still accompanied by signs of Jack¡¦s transformation. However, the omnipresence of death in the chapter seems to weaken the certainty for a pessimistic future of suffering in the capitalist system. Waiting before the checking out point, Jack is in fact facing to the end of vicious circle symbolically. The unfathomable death corresponds with the impossibility the reader encounters when interpreting the text. As the readers cannot determine what will happen after the terminal, they are actually freed from chopping the text for constructing hopes that will be contradicted by the remaining paragraphs at one point or another, while they have to put down the novel and go on living with the similar situations the novel portrays. Herein resides the hope: externalizing the deadlock of life for the reader, the end of White Noise testifies the ongoing procession of human history that cannot be anticipated beforehand.
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Don DeLillo, events and local godsMcMinn, Robert Frank January 1999 (has links)
No description available.
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Two problems in signal quantization and A/D conversionJimenez, David January 2008 (has links)
Thesis (Ph.D.)--Mathematics, Georgia Institute of Technology, 2008. / Committee Chair: Yang Wang; Committee Member: Christopher Heil; Committee Member: Doron Lubinsky; Committee Member: Guillermo Goldsztein; Committee Member: Steven W. McLaughlin
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