Digital Commons Network^™

Mechanical Properties Of Carbon Nanotubes Composites, David Hui, Mircea Chipara, Jagannathan Sankar, K. T. Lau

Physics & Astronomy Faculty Publications

A critical review of theoretical models aiming to explain the physical properties of composites based on polymeric matrices reinforced with carbon nanotubes is presented. Attention is paid to descriptions based on molecular dynamics, continuum mechanics, and finite element analysis. It is shown that both the continuum mechanics approximation and the finite size element analyses fail to describe composites with very thin interfaces, while the performances of molecular dynamics simulations are still restricted by computer's performances. The limitations of the continuum mechanics approximation are analyzed in detail.

Utb/Tsc Board Of Trustees - Minutes - 2004-08-26, University Of Texas At Brownsville And Texas Southmost College. Vice President For Administration And Partnership Affairs.

UTB/TSC Archives - UTB/TSC Board of Trustees Meetings 2003-2011

No abstract provided.

The University Of Texas Brownsville & Texas Southmost College Master Plan 2020, University Of Texas At Brownsville, Texas Southmost College

Campus Master Plans (UTB/UTPA)

"The University of Texas at Brownsville and Texas Southmost College (UTB/TSC) is a dynamic force for education and economic development in the Lower Rio Grande Valley, South Texas, and Northern Mexico. The enrollment is steadily growing with the target of this update of the Facilities Master Plan to accommodate 20,000 students.

A revised master plan is necessary because of three key events that have significantly altered the physical environs of UTB/TSC:

• acquisition of the former Amigoland Mall;
• relocation of the Schools of Education and Business to the
• south side of the Lozano Banco Resaca; and
• acquisition of properties at the …

Utb-Tsc Academic Senate Minutes 2004-07-23, University Of Texas At Brownsville And Texas Southmost College. Faculty Senate.

UTB/TSC Faculty Senate Minutes

No abstract provided.

Orange & White - Summer 2004, University Of Texas At Brownsville, Texas Southmost College

UTB/TSC Archives - Orange & White Magazine

No abstract provided.

Potential Of Modis Ocean Bands For Estimating Co2 Flux From Terrestrial Vegetation: A Novel Approach, Abdullah Rahman, Vicente D. Cordova, John A. Gamon, Hans Peter Schmid, Daniel A. Sims

School of Earth, Environmental, & Marine Sciences Faculty Publications

A physiologically-driven spectral index using two ocean-color bands of MODIS satellite sensor showed great potential to track seasonally changing photosynthetic light use efficiency (LUE) and stress-induced reduction in net primary productivity (NPP) of terrestrial vegetation. Based on these findings, we developed a simple ‘‘continuous field’’ model solely based on remotely sensed spectral data that could explain 88% of variability in flux-tower based daily NPP. For the first time, such a procedure is successfully tested at landscape level using satellite imagery. These findings highlight the unexplored potential of narrow-band satellite sensors to improve estimates of spatial and temporal distribution in terrestrial …

Constraining The Properties Of Supermassive Black Hole Systems Using Pulsar Timing: Application To 3c 66b, Fredrick A. Jenet, Andrea Lommen, Shane L. Larson, Linqing Wen

Physics & Astronomy Faculty Publications

General expressions for the expected timing residuals induced by gravitational wave (G-wave) emission from a slowly evolving, eccentric, binary black hole system are derived here for the first time. These expressions are used to search for the signature of G-waves emitted by the proposed supermassive binary black hole system in 3C 66B. We use data from long-term timing observations of the radio pulsar PSR B1855+09. For the case of a circular orbit, the emitted G-waves should generate clearly detectable fluctuations in the pulse-arrival times of PSR B1855+09. Since no G-waves are detected, the waveforms are used in a Monte Carlo …

The Collegian (2004-05-03), Sonia Mejia

UTB/TSC Archives - The Collegian [Newspaper]

Vol. 56, No. 28

Cultural Relevance In The Lep-Ld Classroom, Blanca Estella Rojas

Theses and Dissertations - UTB/UTPA

This investigation considered Mexican-American students classified as Limited English Proficient (LEP) and Special Education Learning Disabled (LD) on achievement in and attitudes toward reading. Two students used culturally matched materials and two students used non-culturally matched, grade appropriate materials. The individuals who received treatment were paired with those who did not receive treatment on key variables as closely as possible. Qualitative descriptive information answered the following questions: (1) Will the use of a culturally matched novel have the same learning effects as use of a non-culturally matched novel? (2) Will the use of the culturally matched novel lower the affective …

The Collegian (2004-04-26), Sonia Mejia

UTB/TSC Archives - The Collegian [Newspaper]

Vol. 56, No. 27

The Collegian (2004-04-12), Sonia Mejia

UTB/TSC Archives - The Collegian [Newspaper]

Vol. 56, No. 25

Orange & White - Spring 2004, University Of Texas At Brownsville, Texas Southmost College

UTB/TSC Archives - Orange & White Magazine

No abstract provided.

Utb/Tsc Commencement – Spring 2004, University Of Texas At Brownsville, Texas Southmost College

Brownsville Archives - Legacy Commencement Programs

No abstract provided.

Utpa Commencement – Spring 2004, University Of Texas-Pan American

Edinburg Archives - Legacy Commencement Programs

No abstract provided.

Design And Evaluation Of High-Performance Packet Switching Schemes, Taner Doganer

Theses and Dissertations - UTB/UTPA

The design of high-performance packet switches is essential to efficiently handle the exponential growth of data traffic in the next generation Internet. Shared-memory-based packet switches are known to provide the best possible delay-throughput performance and the lowest packet-loss rate compared with packet switches using other buffering strategies. However, scalability of shared-memory-based switching systems has been restricted by high memory bandwidth requirements, segregation of memory space and centralized control of switching functions that causes the switch performance to degrade as a shared-memory switch is grown in size. The new class of sliding-window based packet switches are known to overcome these problems …

The Collegian (2004-03-22), Sonia Mejia

UTB/TSC Archives - The Collegian [Newspaper]

Vol. 56, No. 23

The Pan American (2004-03-18), Arianna Vazquez

UTPA Archives - The Pan American Newspaper

53rd Year, No. 22

The Collegian (2004-03-01), Sonia Mejia

UTB/TSC Archives - The Collegian [Newspaper]

Vol. 56, No. 21

Utb-Tsc Academic Senate Minutes 2004-02-27, University Of Texas At Brownsville And Texas Southmost College. Faculty Senate.

UTB/TSC Faculty Senate Minutes

No abstract provided.

The Collegian (2004-02-23), Sonia Mejia

UTB/TSC Archives - The Collegian [Newspaper]

Vol. 56, No. 20

The Intrinsic Intensity Modulation Of Psr B1937+21 At 1410 Mhz, Fredrick A. Jenet, Janusz Gil

Physics & Astronomy Faculty Publications

The single-pulse properties of the millisecond radio pulsar PSR B1937+21 are studied at 1410 MHz. The nongiant pulse emission regions appear to be remarkably stable, showing no pulse-to-pulse fluctuations other then those induced by the interstellar medium. This type of behavior has not been seen in any other pulsar, although it was seen in previous 430 MHz observations of this source. The stability of this source is interpreted in the context of the sparking gap model of radio pulsar emission, and a model-dependent upper bound is placed on the Lorentz factor of the outflowing plasma.

The Collegian (2004-02-16), Sonia Mejia

UTB/TSC Archives - The Collegian [Newspaper]

Vol. 56, No. 19

The Collegian (2004-02-09), Sonia Mejia

UTB/TSC Archives - The Collegian [Newspaper]

Vol. 56, No. 18

The Collegian (2004-02-02), Sonia Mejia

UTB/TSC Archives - The Collegian [Newspaper]

Vol. 56, No. 17

The Collegian (2004-01-26), Sonia Mejia

UTB/TSC Archives - The Collegian [Newspaper]

Incomplete in digital format. Vol. 56, No. 16

The Collegian (2004-01-19), Sonia Mejia

UTB/TSC Archives - The Collegian [Newspaper]

Incomplete in digital format. Vol. 56, No. 15

Utb/Tsc Student Handbook 2004-2005, University Of Texas At Brownsville, Texas Southmost College

Student Handbooks (UTB/UTPA)

No abstract provided.

Utb/Tsc Commencement – Winter 2004, University Of Texas At Brownsville, Texas Southmost College

Brownsville Archives - Legacy Commencement Programs

No abstract provided.

Disjoint Np-Pairs, Christian Glasser, Alan L. Selman, Samik Sengupta, Liyu Zhang

Computer Science Faculty Publications

We study the question of whether the class DisjNP of disjoint pairs (A, B) of NP-sets contains a complete pair. The question relates to the question of whether optimal proof systems exist, and we relate it to the previously studied question of whether there exists a disjoint pair of NP-sets that is NP-hard. We show under reasonable hypotheses that nonsymmetric disjoint NP-pairs exist, which provides additional evidence for the existence of P-inseparable disjoint NP-pairs. We construct an oracle relative to which the class of disjoint NP-pairs does not have a complete pair; an oracle relative to which …

Parametric Classification In Domains Of Characters, Numerals, Punctuation, Typefaces And Image Qualities, Osama Ahmed Khan

Theses and Dissertations - UTB/UTPA

This thesis contributes to the Optical Font Recognition problem (OFR), by developing a classifier system to differentiate ten typefaces using a single English character ‘e’. First, features which need to be used in the classifier system are carefully selected after a thorough typographical study of global font features and previous related experiments. These features have been modeled by multivariate normal laws in order to use parameter estimation in learning. Then, the classifier system is built up on six independent schemes, each performing typeface classification using a different method. The results have shown a remarkable performance in the field of font …