University Of Texas At Dallas Research Articles

Euclidean Distance Versus Manhattan Distance for New Representative SFA Skin Samples for Human Skin Segmentation

The human color skin image database called SFA, specifically designed to assist research in the area of face recognition, constitutes a very important means particularly for the challenging task of skin detection. It has showed high performances comparing to other existing databases. SFA database provides multiple skin and non-skin samples, which in various combinations with each other allow creating new samples that could be useful and more effective. This particular aspect will be investigated, in the present paper, by creating four new representative skin samples according to the four rules of minimum, maximum, mean and median. The obtained samples will be exploited for the purpose of skin segmentation on the basis of the well-known Euclidean and Manhattan distance metrics. Thereafter, performances of the new representative skin samples versus performances of those skin samples, originally provided by SFA, will be illustrated. Simulation results in both SFA and UTD (University of Texas at Dallas) color face databases indicate that detection rates higher than 92% can be achieved with either measure.

SSCS University of Texas at Dallas Student Chapter Inaugurated in November 2019 [Chapters

The IEEE Solid-State Circuits Society (SSCS) University of Texas at Dallas (UTD) Student Chapter was inaugurated in November 2019. Together with the UTD, the SSCS Student Chapter presented an introduction to its capabilities and goals during a general meeting on 29 January 2020 at Hoblitzelle Hall in Richardson, Texas. During this meeting, Behnam Pouya, UTD SSCS Student Chapter chair, presented an overview of solid-state circuit applications in everyday life to more than 150 attendees. He also gave the audience an easy-to-understand overview of what the SSCS is as well as its responsibilities and services.

Wind LiDAR Measurements of Wind Turbine Wakes Evolving over Flat and Complex Terrains: Ensemble Statistics of the Velocity Field

Wind velocity measurements of wakes generated by utility-scale wind turbines were performed with the University of Texas at Dallas (UTD) mobile LiDAR station for wind farms in flat and complex terrains. Single-wake LiDAR measurements are clustered according to incoming wind speed at hub height and atmospheric stability regime through the wind shear exponent. Ensemble statistics of the LiDAR data shows that the velocity field in the near-wake is mainly affected by the rotor thrust coefficient, while atmospheric stability is the prevailing factor governing wake recovery. For the wind farm in complex terrain, the wind field is significantly affected by the local orography, showing either local speed-up or low-velocity regions. The analysis of the SCADA data corroborates the occurrence of these wind features and enables quantifying their effects on the wind plant performance.

Scholarly Management Publication and Open Access Funding Mandates: a Review of Publisher Policies

The open access movement has been growing steadily over the past twenty years. Recently, many national funding agencies in North America have been requiring recipients of grant-funding to make their articles open access On the surface this produces a potential conflict for management researchers; management faculty members are expected to publish in prestigious journals but the discipline views open access journals as being of lower quality (Hahn & Wyatt, 2014, p.98). As such, the question arises if it is it possible for management researchers to comply with open access policies while still publishing in highly-ranked journals? This article will compare publishing policies from top management journals to funding agencies’ open access requirements in order to determine which journals meet these conditions. Journals will be drawn from several established journal lists such as the University of Texas at Dallas (UTD) 24, the Financial Times (FT) Research Rankings, and Thomson Reuters’ Web of Science Journal Citation Reports. Results show that 80% of journals in the sample set are compatible with open access funding mandates. Of the journals which are compatible, 48% require an APC and 52% permit self-archiving in an acceptable time-frame. In addition to discussing open access publishing opportunities in management, this article will highlight opportunities for management librarians to develop their services and act as resources for faculty navigating this new framework.

Analysis of Collaboration Networks in Business Disciplines

ABSTRACTUsing the articles published in 24 periodicals included in the branch of business fields of the University of Texas at Dallas (UTD) journal list (2000–2012) as the data source, this article establishes the collaboration network of scholars of six different disciplines (i.e., business administration, management science, marketing, accounting, finance, and information science), analyzes the features of the network by utilizing the social network analysis approach, and studies the mode of interdisciplinary collaboration among scholars. The network feature analysis reveals that the collaboration networks of the six disciplines are all sparse, and collaboration is established more in the subgroup. The disciplines of business administration, accounting, and finance have the poorest collaboration network connectivity. The collaboration networks of the six disciplines in business fields all have obvious core-periphery structure; the small-world phenomenon exists in the collaboration networks of business administration and information science. The interdisciplinary research on the scholars of business fields indicates that the interdisciplinary collaboration among information science scholars takes up the maximum proportion and is carried out principally in collaboration of the two disciplines. The collaboration between scholars in management science and information science accounts for the highest proportion.

JANUARY 2014 PLACEMENT ADS

JANUARY 2014 PLACEMENT ADS

First look: Acoustic calibration of carbon nanotube transducers

Material researchers at the University of Texas at Dallas (UT-D) have recently been reporting on the development of underwater acoustic carbon nanotube (CNT) yarn sheets capable of high acoustic output at low frequencies with broad bandwidth. The principle transduction mechanism for their approach is through thermal acoustic means as opposed to conventional underwater transducers that utilize electromechanical vibrations. This presentation will begin with an overview of the CNTs including the design of a first generation packaging technique that was incorporated for the fabrication of three prototypes. The prototypes were acoustically calibrated in April 2013 at the US Navy acoustic calibration facility in Okahumpka, Florida. The presentation will include measured unbiased and biased transmitting voltage responses (TVRs) and directivity patterns over a two and a half decade band. Final discussions will include on-going research directions for further development. [Work supported by NAVSEA Division Newport.]

About Our Authors

About Our Authors

About Our Authors

About Our Authors

Measured Comparison of Dual-Branch Signaling Over Space and Polarization Diversity

Polarization diversity is an efficient alternative to space diversity as it cuts the antenna spacing requirements in half, but comparable results to spatially separated antennas need to be realized for practical implementation to take place. A dual feed square patch antenna has been chosen to demonstrate a complete system evaluation from the antenna design to symbol error rate (SER) performance of polarization diversity. The patch antenna has been designed with vertical and horizontal polarizations, which are well isolated at 2.4 GHz. The beam patterns were measured in the anechoic chamber on The University of Texas at Dallas (UTD) campus. The nature of the beam patterns greatly influenced the results, which have been reported in line-of-sight (LOS) and nonline-of-sight (NLOS) indoor environments in the Erik Jonsson Engineering and Computer Science North (ECSN) building at UTD. Performance evaluation has been developed for 1 × 1, 2 × 1, and 2 × 2 systems based on channel gain, channel correlation, and SER. The dual feed patch antenna performs more consistently as the environment changes from LOS to NLOS due to the low channel correlation and the complementary nature of the vertical and horizontal beam patterns.

Interview with Mark Spong [Turning Point

In this issue, I am talking with Mark W. Spong, dean of the Eric Jonsson School of Engineering and Computer Science, the University of Texas at Dallas (UTD).

Table of Contents

Abstract Cover Story Alumni input helps to shape new alumni center New alumni center shaped by input from hundreds of alumni Seek input, avoid reinventing the wheel when building new alumni center Bright Idea WVU grad, son of original donor, becomes campaign's honorary chair Foundations Though progress is being made, diversity lacking in foundations Leaders & Innovators KYLE EDGINGTON, CHIEF DEVELOPMENT OFFICER, UNIVERSITY OF TEXAS AT DALLAS' SCHOOL OF MANAGEMENT Focus on developing genuine relationships, advocating for donors Helpful Hints Use these 5 tips to become a better fundraiser Giving Direct‐mail appeals no longer getting good donor response rate Internet most popular way for major donors to engage with nonprofits Did You Know? Why the decline in donors? Word of Advice Know the 3 giving types Of Counsel Form 990‐T public disclosure procedures set Fundraising Ethics in fundraising remains a major issue for development field Managing Your Office Keep future leaders in the pipeline with mentoring program Create a successful mentoring program Use generational differences to energize succession planning Follow these steps to create an effective succession plan Executive Briefing Claremont McKenna gets $75M donation Gift to OU turns out bigger than expected Area attorney contributes to law center Estate gift to provide scholarship funds Sisters contribute to religious school NAMES IN THE NEWS 3 named to top university development posts

The University of Texas at Dallas/Callier Center for Communication Disorders Doctor of Audiology Program

The purpose of this article is to describe the history and resources of the doctor of audiology (AuD) program at the University of Texas at Dallas (UTD)/Callier Center for Communication Disorders, as well as to provide an overview of the program. Data from 1999, when the AuD program was approved by the Texas Higher Education Coordinating Program, to the present were reviewed. The UTD/Callier Center AuD program includes more than 40 faculty members, spans 3 campuses, and has 8 research laboratories. Total enrollment is 32 students (8 students are admitted each year for the 4-year program). Students have access to extensive resources and learning opportunities. The clinical and research programs at the UTD/Callier Center are actively involved in providing high-quality, in-depth education to future doctors of audiology.

Ultra-fast flash X-ray pulses produced by Blumlein devices

The flash X-ray systems developed at the University of Texas at Dallas (UTD) centers on two critical subassemblies: (1) a Blumlein pulsed power source and (2) an X-ray diode properly designed and matched to the pulse forming line. The pulse generator consists of either a single or several triaxial Blumleins. For multiple lines, Blumleins are stacked in series at one end and charged in parallel and synchronously commutated with a single switching element at the other end. In this way, relatively low charging voltages are multiplied to give a high discharge voltage across an X-ray diode. Extensive characterization of these Blumlein pulsers have been performed over the past several years. Results indicate that they are capable of producing high-power waveforms with risetimes and repetition rates in the range of 0.1–50ns and 1–1000Hz, respectively, using a conventional thyratron, spark gap, or photoconductive switch. Our recent efforts have for the first time resulted in implementation and demonstration of high-power stacked Blumlein pulsers commutated by a single photoconductive switch. Presently, these devices reliably produce 50–100MW output waveforms with pulse durations of 1–3ns and risetimes as fast as 150ps. Prospects for producing X-rays with such fast-switching devices are discussed.

The First Telecommunications Engineering Program in the United States

AbstractIn the summer of 1998, the Erik Jonsson School of Engineering and computer Science (the Jonsson School) at The University of Texas at Dallas (UTD) obtained approval from the Texas Higher Education Coordinating Board to offer BS and MS degrees in Telecommunications Engineering (TE). These are the first TE degree programs in the United States and the BS program received ABET accreditation for classes to begin in the fall of 1999.This paper discusses the need for such a program at UTD from the perspective of industry as well as the academic justification for a separate degree. The implementation of the program as a combination of Electrical Engineering and Computer Science is addressed as well as the tradeoffs necessary in combining these curricula. Many of the issues are similar to the ones addressed in a Computer Engineering program. However, the resulting tradeoffs are different in the case of a Telecommunications Engineering program.

Introduction [to Special Section on Anton Hales Symposium

This volume of the Journal of Geophysical Research is devoted to Anton L. Hales. It contains many of the papers presented at the Anton L. Hales Symposium on ‘Some Recent Advances in Geophysics’ held at The University of Texas at Dallas (UTD) on October 5–6, 1981, to honor Professor Hales on his retirement from UTD at the age of 70. Many former students, colleagues, and friends attended the symposium to honor Anton and to share their experiences with a man who had touched their lives and left his mark on the field of geophysics. Professor Hales' career in geophysics spans 50 years beginning with his first course in geophysics in 1932 at Cambridge University.