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open access

In-Situ Real Time Monitoring and Control of Mold Making and Filling Processes: Final Report

Description: This project presents a model for addressing several objectives envisioned by the metal casting industries through the integration of research and educational components. It provides an innovative approach to introduce technologies for real time characterization of sand molds, lost foam patterns and monitoring of the mold filling process. The technology developed will enable better control over the casting process. It is expected to reduce scrap and variance in the casting quality. A strong edu… more
Date: December 22, 2010
Creator: Abdelrahman, Mohamed & Currie, Kenneth
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Group-III Nitride Etch Selectivity in BCl(3)/Cl(2) ICP Plasmas

Description: Patterning the group-IH nitrides has been challenging due to their strong bond energies and relatively inert chemical nature as compared to other compound semiconductors. Plasma etch processes have been used almost exclusively to pattern these films. The use of high-density plasma etch systems, including inductively coupled plasmas (ICP), has resulted in relatively high etch rates (often greater than 1.0 pmhnin) with anisotropic profiles and smooth etch morphologies. However, the etch mechanism… more
Date: December 9, 1998
Creator: Abernathy, C.R.; Han, J.; Hong, J.; Lester, L.F.; Pearton, S.J.; Shul, R.J. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Model Etch Profiles for Ion Energy Distribution Functions in an Inductively Coupled Plasma Reactor

Description: Rectangular trench profiles are modeled with analytic etch rates determined from measured ion distribution functions. The pattern transfer step for this plasma etch is for trilayer lithography. Argon and chlorine angular ion energy distribution functions measured by a spherical collector ring analyzer are fit to a sum of drifting Maxwellian velocity distribution functions with anisotropic temperatures. The fit of the model ion distribution functions by a simulated annealing optimization procedu… more
Date: December 14, 1998
Creator: Abraham-Shrauner, B.; Chen, W. & Woodworth, J.R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Healing of lithographically introduced flaws in glass and glass containing ceramics

Description: The morphological evolution of cylindrical pores or ``channels`` and crack-like cavities in glass and glass-containing ceramics at elevated temperatures was studied. The systems studied were: Coming 7056 alkali borosilicate glass, soda-lime glass (microscope slides), a commercially available 96% Al{sub 2}O{sub 3}with {approx}5--10% intergranular glass, 96% Al{sub 2}O{sub 3} bonded to sapphire, and a model sapphire/glass/sapphire system fabricated by diffusion bonding etched and unetched pieces … more
Date: December 1, 1992
Creator: Ackler, H. D.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
open access

Healing of lithographically introduced flaws in glass and glass containing ceramics

Description: The morphological evolution of cylindrical pores or channels'' and crack-like cavities in glass and glass-containing ceramics at elevated temperatures was studied. The systems studied were: Coming 7056 alkali borosilicate glass, soda-lime glass (microscope slides), a commercially available 96% Al[sub 2]O[sub 3]with [approx]5--10% intergranular glass, 96% Al[sub 2]O[sub 3] bonded to sapphire, and a model sapphire/glass/sapphire system fabricated by diffusion bonding etched and unetched pieces of… more
Date: December 1, 1992
Creator: Ackler, H. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Neural Network Classifiers for Object Detection in Optical and Infrared Images

Description: This thesis presents a series of neural network classifiers for object detection in both optical and infrared images. The focus of this work is on efficient and accurate solutions. The thesis discusses the evolution of the highly efficient and tiny network Binary Classification Vision Transformer (BC-ViT) and how through thoughtful modifications and improvements, the BC-ViT can be utilized for tasks of increasing complexity. Chapter 2 discusses the creation of BC-ViT and its initial use case fo… more
Date: December 2023
Creator: Adams, Ethan Richard
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Advancing Reverse Electrowetting-on-Dielectric from Planar to Rough Surface Electrodes for High Power Density Energy Harvesting

Description: Article presenting electrical and multiphysics-based modeling approaches of REWOD energy harvester using structured rough surface electrodes. By enhancing the overall available surface area, an increase in the overall capacitance is achieved.
Date: December 15, 2021
Creator: Adhikari, Pashupati R.; Patwary, Adnan B.; Kakaraparty, Karthik; Gunti, Avinash; Reid, Russell C. & Mahbub, Ifana
Item Type: Refine your search to only Article
Partner: UNT College of Engineering
open access

Optical Properties and Wave Propagation in Semiconductor-Based Two-Dimensional Photonic Crystals

Description: This work is a theoretical investigation on the physical properties of semiconductor-based two-dimensional photonic crystals, in particular for what concerns systems embedded in planar dielectric waveguides (GaAs/AlGaAs, GaInAsP/InP heterostructures, and self-standing membranes) or based on macro-porous silicon. The photonic-band structure of photonic crystals and photonic-crystal slabs is numerically computed and the associated light-line problem is discussed, which points to the issue of intr… more
Date: December 31, 2002
Creator: Agio, Mario
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
open access

Report to users of ATLAS, December 1995

Description: This report covers the following: status of ATLAS accelerator; highlights of recent research at ATLAS; research related concept for an Advanced Exotic Beam Facility on ATLAS; program advisory committee; and ATLAS user group executive committee. Research highlights are given for the following: APEX progress report; transport efficiency of the Argonne Fragment Mass Analyzer; collective motion in light polonium isotopes; angular correlation measurements for {sup 12}C(g.s.) + {sup 12}C(3{minus},9.6… more
Date: December 1, 1995
Creator: Ahmad, I. & Glagola, B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Battery energy storage: A preliminary assessment of national benefits (the Gateway Benefits Study)

Description: Preliminary estimates of national benefits from electric utility applications of battery energy storage through the year 2010 are presented along with a discussion of the particular applications studied. The estimates in this report were based on planning information reported to DOE by electric utilities across the United States. Future studies are planned to refine these estimates as more application-specific information becomes available.
Date: December 1, 1993
Creator: Akhil, A.; Zaininger, H.; Hurwitch, J. & Badin, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

Comparison and Evaluation of Existing Analog Circuit Simulator using Sigma-Delta Modulator

Description: In the world of VLSI (very large scale integration) technology, there are many different types of circuit simulators that are used to design and predict the circuit behavior before actual fabrication of the circuit. In this thesis, I compared and evaluated existing circuit simulators by considering standard benchmark circuits. The circuit simulators which I evaluated and explored are Ngspice, Tclspice, Winspice (open source) and Spectre® (commercial). I also tested standard benchmarks using the… more
Access: Restricted to UNT Community Members. Login required if off-campus.
Date: December 2006
Creator: Ale, Anil Kumar
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries

Open Access and Scholarly Communication

Description: Presentation on the concepts of open access and scholarly communication. This presentation covers the background of these topics and their definitions, tools and policies for open access, technology and emerging trends, challenges/opportunities that open access faces, and ultimately relates this information to open access initiatives in developing countries.
Date: December 13, 2019
Creator: Alemneh, Daniel Gelaw
Item Type: Refine your search to only Presentation
Partner: UNT Libraries
open access

Staff exchange with Spokane Intercollegiate Research and Technology Institute (SIRTI), final project report

Description: Staff exchanges, such as the one described in this report, are intended to facilitate communication and collaboration among scientists and engineers at Department of Energy (DOE) laboratories, in U.S. industry, and academia. Funding support for these exchanges is provided by the DOE, Office of Energy Research, Laboratory Technology Transfer Program. Funding levels for each exchange typically range from $20,000 to $40,000. The exchanges offer the opportunity for the laboratories to transfer tech… more
Date: December 1, 1994
Creator: Alexander, G. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

Oral History Interview with William J. Fisk, December 26, 1996

Description: Interview with William J. Fisk, a Navy veteran (VPB-123), concerning his experiences in the Pacific Theater during World War II. Assignment to the crew of a PB4Y-2; his unauthorized participation in a combat mission out of Okinawa over the Sea of Japan; battle damage to his plane; description of Hiroshima and Nagasaki from aerial observations after the dropping of the atomic bombs.
Access: Restricted to UNT Community Members. Login required if off-campus.
Date: December 26, 1996
Creator: Alexander, William J. & Fisk, William J.
Item Type: Refine your search to only Text
Partner: UNT Oral History Program
open access

FruitPAL: An IoT-Enabled Framework for Automatic Monitoring of Fruit Consumption in Smart Healthcare

Description: This research proposes FruitPAL and FruitPAL 2.0. They are full automatic devices that can detect fruit consumption to reduce the risk of disease. Allergies to fruits can seriously impair the immune system. A novel device (FruitPAL) detecting fruit that can cause allergies is proposed in this thesis. The device can detect fifteen types of fruit and alert the caregiver when an allergic reaction may have happened. The YOLOv8 model is employed to enhance accuracy and response time in detecting dan… more
Date: December 2023
Creator: Alkinani, Abdulrahman Ibrahim M.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

ISO 30401:2018: Uma Análise Crítica do Requisito 4.4 – Sistema de Gestão do Conhecimento

Description: Paper aims to make a critical analysis of requirement 4.4 of ISO 30401: 2018, entitled “Knowledge Management System”: the item that establishes guidelines on how knowledge management should be applied in organizations.
Date: December 4, 2019
Creator: Alvez, Juliano Keller; Lapolli, Joiceli Rossoni; de Moraes, Leonard Almeida; dos Santos, Neri & Lapolli, Édis Mafra
Item Type: Refine your search to only Paper
Partner: UNT College of Information
open access

Southwest Retort, Volume 11, Number 4, December 1958

Description: This publication of the Dallas-Fort Worth Section of the American Chemical Society includes information about research, prominent scientist, organizational business, and various other stories of interest to the community. Published monthly during long academic semesters. This issue includes program information for the regional meeting in San Antonio, Texas.
Date: December 1958
Creator: American Chemical Society. Dallas/Fort Worth Section.
Item Type: Refine your search to only Journal/Magazine/Newsletter
Partner: UNT Libraries
open access

Southwest Retort, Volume 12, Number 4, December 1959

Description: This publication of the Dallas-Fort Worth Section of the American Chemical Society includes information about research, prominent scientist, organizational business, and various other stories of interest to the community. Published monthly during long academic semesters.
Date: December 1959
Creator: American Chemical Society. Dallas/Fort Worth Section.
Item Type: Refine your search to only Journal/Magazine/Newsletter
Partner: UNT Libraries
open access

Southwest Retort, Volume 17, Number 4, December 1964

Description: This publication of the Dallas-Fort Worth Section of the American Chemical Society includes information about research, prominent scientist, organizational business, and various other stories of interest to the community. Published monthly during long academic semesters.
Date: December 1964
Creator: American Chemical Society. Dallas/Fort Worth Section.
Item Type: Refine your search to only Journal/Magazine/Newsletter
Partner: UNT Libraries
open access

Southwest Retort, Volume 22, Number 4, December 1969

Description: This publication of the Dallas-Fort Worth Section of the American Chemical Society includes information about research, prominent scientist, organizational business, and various other stories of interest to the community. Published monthly during long academic semesters. This issue includes abstracts of the regional meeting addresses, an ad with blue.
Date: December 1969
Creator: American Chemical Society. Dallas/Fort Worth Section.
Item Type: Refine your search to only Journal/Magazine/Newsletter
Partner: UNT Libraries
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