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Sustaining the Technopolis: The Case of Austin, Texas

  • Gibson, David V.;Butler, John S.
    • World Technopolis Review
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    • v.2 no.2
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    • pp.64-80
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    • 2013
  • In "Creating the Technopolis: High Technology Development in Austin Texas," Smilor, Kozmetsky, and Gibson (1988) make the case that in the mid-1980s Austin was becoming a globally competitive high tech region. Indeed over the years and into 2013, Austin has established its reputation as a leading entrepreneurial and technology center and "talent magnet." Delegations from across the US and worldwide visit Austin to better understand how this central Texas city went from being a state government and university town to become a fast growing, globally competitive, technology hotspot leading the state and nation in job creation. Central to the concept of the Triple Helix and Technopolis Frameworks is the importance of university, business, and government cooperation. This paper gives examples of mechanisms, processes, and metrics on how The University of Texas at Austin; regional technology industry; federal, state, and local government policies; and support groups all contributed to growing and sustaining the Austin Technopolis.

A NOTE ON THE AUSTIN'S GROUPOIDS

  • Cho, Jung-R.;Dudek, Jozef
    • East Asian mathematical journal
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    • v.22 no.2
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    • pp.215-221
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    • 2006
  • On a groupoid satisfying the Austin's identity, every n-ary linear term is essentially n-ary. That is, if a term has no variables appearing more than once, then the term depends on every variable it involves.

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Paper-Based Bipolar Electrochemistry

  • Renault, Christophe;Scida, Karen;Knust, Kyle N.;Fosdick, Stephen E.;Crooks, Richard M.
    • Journal of Electrochemical Science and Technology
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    • v.4 no.4
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    • pp.146-152
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    • 2013
  • We demonstrate that carbon electrodes screen-printed directly on cellulose paper can be employed to perform bipolar electrochemistry. In addition, an array of 18 screen-printed bipolar electrodes (BPEs) can be simultaneously controlled using a single pair of driving electrodes. The electrochemical state of the BPEs is read-out using electrogenerated chemiluminescence. These results are important because they demonstrate the feasibility of coupling bipolar electrochemistry to microfluidic paperbased analytical devices (${\mu}PADs$) to perform highly multiplexed, low-cost measurements.

The Physical Properties of Granite Microfines and the Workability of Mortar with Granite Microfines

  • Koehler, Eric;Hahn, Michael De Moya;Trachet, Alison;Rached, Marc;Choi, Jae Jin;Fowler, David
    • Journal of the Korean Recycled Construction Resources Institute
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    • v.4 no.3
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    • pp.69-74
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    • 2009
  • This paper summarizes the analysis of granite microfines from California for use in portland cement concrete. For reference, the granite microfines were compared to microfines used in previous International Center for Aggregates Research(ICAR) projects. The particle shape characteristics, based on the packing density results, were assessed and apparent clay content, based on the methylene blue value test, was evaluated. Also, the physical properties of the microfines were confirmed in self-consolidating mortar mixtures.

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The use of tissue fiducial markers in improving the accuracy of post-prostatectomy radiotherapy

  • Chao, Michael;Ho, Huong;Joon, Daryl Lim;Chan, Yee;Spencer, Sandra;Ng, Michael;Wasiak, Jason;Lawrentschuk, Nathan;McMillan, Kevin;Sengupta, Shomik;Tan, Alwin;Koufogiannis, George;Cokelek, Margaret;Foroudi, Farshad;Khong, Tristan-Scott;Bolton, Damien
    • Radiation Oncology Journal
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    • v.37 no.1
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    • pp.43-50
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    • 2019
  • Purpose: The aim of this retrospective study was to investigate the use of a radiopaque tissue fiducial marker (TFM) in the treatment of prostate cancer patients who undergo post-prostatectomy radiotherapy (PPRT). TFM safety, its role and benefit in quantifying the set-up uncertainties in patients undergoing PPRT image-guided radiotherapy were assessed. Materials and Methods: A total of 45 consecutive PPRT patients underwent transperineal implantation of TFM at the level of vesicourethral anastomosis in the retrovesical tissue prior to intensity-modulated radiotherapy. Prostate bed motion was calculated by measuring the position of the TFM relative to the pelvic bony anatomy on daily cone-beam computed tomography. The stability and visibility of the TFM were assessed in the initial 10 patients. Results: No postoperative complications were recorded. A total of 3,500 images were analysed. The calculated prostate bed motion for bony landmark matching relative to TFM were 2.25 mm in the left-right, 5.89 mm in the superior-inferior, and 6.59 mm in the anterior-posterior directions. A significant 36% reduction in the mean volume of rectum receiving 70 Gy (rV70) was achieved for a uniform planning target volume (PTV) margin of 7 mm compared with the Australian and New Zealand Faculty of Radiation Oncology Genito-Urinary Group recommended PTV margin of 10 mm. Conclusion: The use of TFM was safe and can potentially eliminate set-up errors associated with bony landmark matching, thereby allowing for tighter PTV margins and a consequent favourable reduction in dose delivered to the bladder and rectum, with potential improvements in toxicities.

Dynamic Response and Carrier Velocity in Organic Field-Effect Transistors

  • Cobb, Brian;Wang, Liang;Dunn, Lawrence;Dodabalapur, Ananth
    • 한국정보디스플레이학회:학술대회논문집
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    • 2009.10a
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    • pp.60-63
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    • 2009
  • In this letter we report on the carrier velocity of polycrystalline pentacene transistors as a function of electric field. We performed a series of measurements on devices with a range of channel lengths. At moderate electric fields (<$5{\times}10^5$ V/cm), the characteristics are similar to those of disordered or amorphous organic semiconductors. The highest velocities we have measured are near $6{\times}10^4$ cm/s at room temperature. We perform quasi-static and dynamic measurements to measure carrier velocity. These results fill an important void between experimental results that have been obtained with disordered/amorphous organic semiconductors and single crystals.

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ORGANIZATIONAL AND COMMUNICATION ISSUES FOR MANAGING DESIGN-BUILD HIGHWAY PROJECTS

  • G. Edward Jr. Gibson;James T. O'Connor;Giovanni C. Migliaccio;Pramen P. Shrestha
    • International conference on construction engineering and project management
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    • 2005.10a
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    • pp.974-979
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    • 2005
  • Effective communication flow is a fundamental for the success of any construction projects. The key role of communications among project parties is even more critical in the case of Design-Build (DB) projects. Previous research has shown that these projects have an environment where integration between different project team members and schedule constraints increase channels of communication, and require faster communication flows. This paper summarizes the findings from research analyzing organizational structures and communication flow of the Texas State Highway 130 (SH130) project. Awarded in 2002, the SH130 project, totaling $1.3 billion USD, constitutes the "pilot" application for the DB approach in the state of Texas. A set of observations pertaining to team organization and communication issues in the design-build environment is included.

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VPH Gratings for Near-Infrared Spectrographs

  • Lee, Sung-Ho;Deen, Casey;Chun, Moo-Young;Kim, Kang-Min;Yuk, In-Soo;Park, Chan;Oh, Hee-Young;Rukdee, Surangkhana;Jeong, Hwa-Kyung;Pak, Soo-Jong;Gully-Santiago, Michael;Lee, Han-Shin;Strubhar, Joseph;Rafal, Marc;Jaffe, Daniel
    • The Bulletin of The Korean Astronomical Society
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    • v.36 no.2
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    • pp.150.2-150.2
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    • 2011
  • Volume Phase Holographic (VPH) gratings are getting more popular as dispersion elements in spectrographs. High efficiency, compact configuration, and easy handling are driving many visual spectrographs to use VPH gratings for their main dispersers or for their cross-dispersers in higher resolution spectrographs. More recently, VPH gratings are being adopted in near-infrared by some spectrographs and by a number of next generation instrument projects. IGRINS (Immersion Grating Infrared Spectrograph) uses a VPH grating as a cross-disperser in each H or K band arm. J or H band performance of VPH gratings has been proven by other instruments. But K-band VPH gratings are new to the field. In this presentation, we are going to present test results we have got so far for verification of H-band VPH gratings and development of K-band VPH gratings.

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