You limited your search to:

  Access Rights: Public
  Partner: UNT Libraries
 Decade: 2010-2019
1/F Baseband Noise Suppression in Ofdm Using Kalman Filter

1/F Baseband Noise Suppression in Ofdm Using Kalman Filter

Date: May 2012
Creator: Rodda, Lasya
Description: As the technology is advances the reduced size of hardware gives rise to an additive 1/f baseband noise. This additive 1/f noise is a system noise generated due to miniaturization of hardware and affects the lower frequencies. Though 1/f noise does not show much effect in wide band channels because of its nature to affect only certain frequencies, 1/f noise becomes a prominent in OFDM communication systems where narrow band channels are used. in this thesis, I study the effects of 1/f noise on the OFDM systems and implement algorithms for estimation and suppression of the noise using Kalman filter. Suppression of the noise is achieved by subtracting the estimated noise from the received noise. I show that the performance of the system is considerably improved by applying the 1/f noise suppression.
Contributing Partner: UNT Libraries
7.5 Minute Quadrangle Project

7.5 Minute Quadrangle Project

Date: October 18, 2010
Creator: Phillips, Mark Edward
Description: This presentation discusses the 7.5 minute quadrangle project by the University of North Texas (UNT) Libraries' Digital Projects Unit. This presentation gives the background, goals, processes, challenges, and next steps.
Contributing Partner: UNT Libraries
100% Renewable Energy - and Beyond - for Cities

100% Renewable Energy - and Beyond - for Cities

Date: March 2010
Creator: Droege, Peter
Description: This booklet sketches out the options and the processes that have started to transform urban energy systems. The document promotes carbon neutrality for communities and cities and argues that even the largest cities can make this transition, drawing on renewable energy supplies from within their boundaries, as well as from farther away. In addition to assuring urban energy security, these developments can also stimulate the growth of a very large new green economy sector.
Contributing Partner: UNT Libraries
161 Glass: Site Specific Music in an Artistic Context

161 Glass: Site Specific Music in an Artistic Context

Date: May 2010
Creator: Rusnak, Christina S.
Description: The composition 161 Glass is a 17-minute musical work with percussion, wind and brass instruments in which the intersection of mid-century architecture, and the art and culture of a dynamic city are inextricably linked. Through this paper, I explore the process of composing a musical work in relationship to the significance of site specific context. The paper begins by defining the concept of site specific art works; then reviews the discourse of the intersection of art, music and architecture. I then delve into the cultural and geographic context surrounding this project from the modern era through the present, and how those perspectives apply to the building and my piece. I reveal how the composition relates the musical ideas to the site. Finally, I describe the collaborative process between myself, the musicians and the Dallas Contemporary staff.
Contributing Partner: UNT Libraries
2012 Presidential Primaries

2012 Presidential Primaries

Date: April 2012
Creator: Mondragon-Becker, Antonio
Description: This poster introduces the faculty lecture series UNT Speaks Out on the 2012 Presidential Primaries. This series features Dr. Tony Carey, assistant professor in the Department of Political Science, Dr. Matthew Eshbaugh-Soha, associate professor in the Department of Political Science, and Dr. Brian Lain, associate professor in the Department of Communications Studies and director of UNT's Debate Program.
Contributing Partner: UNT Libraries
Absorptive Capacity:  An Empirical Examination of the Phenomenon and Relationships with Firm Capabilities

Absorptive Capacity: An Empirical Examination of the Phenomenon and Relationships with Firm Capabilities

Date: May 2012
Creator: Daspit, Josh
Description: The field of strategic management addresses challenges that firms encounter in an attempt to remain competitive. The ability to explain variation in firm success through examination of knowledge flows has become a prominent focus of research in the strategic management literature. Specifically, researchers have sought to further examine how firms convert knowledge, a phenomenon conceptualized as absorptive capacity. Absorptive capacity is the firm’s ability to acquire, assimilate, transform, and exploit knowledge. Few studies have captured the richness and multi-dimensionality of absorptive capacity, and it remains to be understood how the dimensions of the phenomenon convert knowledge. Furthermore, how absorptive capacity influences the firm remains to be understood. To address these research gaps, this dissertation seeks to (1) determine how absorptive capacity converts knowledge, and (2) determine how absorptive capacity influences firm capabilities. The research questions are investigated using structural modeling techniques to analyze data collected from software-industry firms. The findings offer contributions to the absorptive capacity and capability literatures. For example, absorptive capacity is hypothesized to consist of complex relationships among its internal dimensions. However, findings of this study suggest the relationships among the dimensions are linear in nature. This finding is in line with the theoretical foundations of and ...
Contributing Partner: UNT Libraries
Access to Knowledge: a guide for everyone

Access to Knowledge: a guide for everyone

Date: 2010
Creator: Noronha, Frederick
Description: According to the back cover, this book introduces the Access to Knowledge movement, which aims to create more equitable public access to the products of human culture and learning.
Contributing Partner: UNT Libraries
Access to knowledge for consumers: Reports of Campaigns and Research 2008-2010

Access to knowledge for consumers: Reports of Campaigns and Research 2008-2010

Date: 2010
Creator: Consumers International
Description: According to the back cover, this book reports the results of a global survey of consumers, revealing barriers to access and use of copyright materials, research on copyright law reform, and advocacy focused on improving knowledge access in several developing countries.
Contributing Partner: UNT Libraries
Acculturation, Acculturative Stress, and Anxiety Among Hispanic Undergraduates

Acculturation, Acculturative Stress, and Anxiety Among Hispanic Undergraduates

Date: May 2011
Creator: Durón, Kelly M.
Description: First generation college students face some unique challenges in the pursuit of higher education. Aside from academic stressors, there are stressors related to social and cultural transitions which may exacerbate pre-existing emotional or psychological distress. Research suggests that acculturation influences psychological well-being and development. The current study examined the relationships between acculturation, acculturative stress, socio-economic status, and symptoms of anxiety among first-generation college students of Hispanic origin. Participants (N = 125) included those who were first in their family to attend college and were primarily female, of traditional college age, and of Mexican heritage. All measures were self-report and were completed online. Overall, this study was inconclusive as most analyses were underpowered. The present study failed to support a relationship between style of acculturation and symptoms of anxiety, although, experiencing Anglo marginality was related to high levels of acculturative stress and anxiety. Finally, regression analysis revealed that acculturative stress, age, and Anglo marginalization were significant predictors of anxiety and accounted for 31% of variance in anxiety. Implications of the present study were discussed. Further study with adequate power is highly recommended.
Contributing Partner: UNT Libraries
Acculturation and Depression in Older Mexican American Adults: the Role of Social Support

Acculturation and Depression in Older Mexican American Adults: the Role of Social Support

Date: August 2012
Creator: Caballero, Daniela
Description: Despite socioeconomic disadvantages, less acculturated Mexican Americans tend to exhibit better mental health than their more acculturated counterparts. However, in the case of older Mexican American adults, research has demonstrated the opposite to be true (Gonzalez, Haan, & Hinton, 2001). A variable of interest potentially responsible for this difference is social support. Thus, the current study proposed to investigate the mediation and moderation effects that social support has on the relationship between acculturation and depression in older Mexican American adults age 60 or older. Data from the Health and Retirement Study (HRS) was analyzed. Results showed that the mediating effect of contact with one’s children (-.109*) and the moderating effect of total social support and contact with one’s children (-.127*; -.103*) were statistically significant in the relationship between acculturation and depression. Although these effects are small they may still hold important implications for better understanding this population.
Contributing Partner: UNT Libraries
FIRST PREV 1 2 3 4 5 NEXT LAST