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194,531 Matching Results

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3D Printable Numbers Type Setting Kit

3D Printable Numbers Type Setting Kit

Individual 3D dataset files for numbers 1 through 9 type pieces.
Date: January 21, 2021
Creator: Strait, Bob
Object Type: Dataset
System: The UNT Digital Library
3D Printable Punctuation and Spaces Type Setting Kit

3D Printable Punctuation and Spaces Type Setting Kit

Individual 3D dataset files for Punctuation and type setting spaces. Punctuation pieces include ampersand, apostrophe, colon, comma, double parentheses, forward slash, period, question mark, and semi colon. Space pieces include three em, four em, 5 em, em quad, and en quad.
Date: January 21, 2021
Creator: Strait, Bob
Object Type: Dataset
System: The UNT Digital Library
3D Printable Uppercase Type Setting Kit

3D Printable Uppercase Type Setting Kit

Individual 3D dataset files for uppercase type letters A through Z.
Date: January 21, 2021
Creator: Strait, Bob
Object Type: Dataset
System: The UNT Digital Library
3D Printed Papermaking Mould Version 1 Instructions (open access)

3D Printed Papermaking Mould Version 1 Instructions

Instructions for the 3D Printed Papermaking Mould Version 1
Date: November 10, 2020
Creator: Queen, Brian
Object Type: Text
System: The UNT Digital Library
3D Printed Papermaking Mould Version 2 Instructions (open access)

3D Printed Papermaking Mould Version 2 Instructions

Instructions for the 3D Printed Papermaking Mould Version 2
Date: November 10, 2020
Creator: Queen, Brian
Object Type: Text
System: The UNT Digital Library
3D Printed Papermaking Mould Version 3 Instructions (open access)

3D Printed Papermaking Mould Version 3 Instructions

Instructions for the 3D Printed Papermaking Mould Version 3
Date: November 10, 2020
Creator: Queen, Brian
Object Type: Text
System: The UNT Digital Library
3D Printed Self-Activated Carbon Electrodes for Supercapacitor Applications (open access)

3D Printed Self-Activated Carbon Electrodes for Supercapacitor Applications

This study investigated a new approach to achieving high energy density supercapacitors (SCs) by using high surface area self-activated carbon from waste coffee grounds (WCGs) and modifying 3D printed electrodes' porous structure by varying infill density. The derived activated carbons' surface area, pore size, and pore volume were controlled by thermally treating the WCGs at different temperatures (1000˚C, 1100˚C, and 1200˚C) and post-treating with HCL to remove water-soluble ashes and contaminants that block activated carbon pores. Surface area characterization revealed that the carbon activated at 1000˚C had the highest surface of 1173.48 m2 g-1, and with the addition of HCL, the surface area increased to 1209.35 m2 g-1. This activated carbon was used for fabricating the electrodes based on the surface area and having both micropores and macropores, which are beneficial for charge storage. Direct ink writing (DIW) method was utilized for 3D printing SC electrodes and changing the electrode structure by increasing the infill densities at 30%, 50%, and 100%. Upon increasing the infill densities, the electrodes' mass increased linearly, porosity decreased, and the total surface area increased for the 30% and 50% infill electrodes but decreased for the 100% infill electrode. Cyclic voltammetry (CV) test on the assembled …
Date: July 2023
Creator: Disi, Onome Aghogho
Object Type: Thesis or Dissertation
System: The UNT Digital Library
3D Printing Book History: Extending Bibliographical Pedagogy Through Additive Manufacturing

3D Printing Book History: Extending Bibliographical Pedagogy Through Additive Manufacturing

Presented at the 2017 Day of Digital Humanities. This presentation provides an overview of the 3Dhotbed project to extend bibliographical pedagogy through additive manufacturing.
Date: April 5, 2017
Creator: Jacobs, Courtney E.; McIntosh, Marcia & O'Sullivan, Kevin
Object Type: Presentation
System: The UNT Digital Library
3D Printing Book History: Extending bibliographical pedagogy through additive manufacturing

3D Printing Book History: Extending bibliographical pedagogy through additive manufacturing

Presented at the 2017 Rare Books and Manuscripts Section Conference. This seminar focuses on work extending bibliographical pedagogy through additive manufacturing
Date: June 21, 2017
Creator: Jacobs, Courtney E.; McIntosh, Marcia & O'Sullivan, Kevin
Object Type: Presentation
System: The UNT Digital Library
3D Printing of Zinc Anode for Zinc Ion Batteries

3D Printing of Zinc Anode for Zinc Ion Batteries

Recently, 3D printing has received increasing attention for the fabrication and assembly of electrodes for batteries due to the freedom of creating structures in any shape or size, porosity, flexibility, stretchability, and chemistry. Particularly, zinc ion batteries (ZIBs) are favored due to high safety, cheap materials cost, and high volumetric capacity (5,849 mAh/cm3), however, rapid evaporation of Zn due to low melting temperature has limited its 3D printability via conventional laser-based additive manufacturing technique. Here, we develop a printable ink for the fabrication of flexible and 3D printed Zn anode with varied surface areas using the direct ink writing (DIW) method. Our 3D printed porous and high surface area Zn anode structures effectively suppressed the dendrite growth while providing high Zn ion diffusion towards the cathode to significantly enhance the performance of ZIB. By varying filament distancing and path, we 3D printed zinc anode structures with different active surface areas, surface area to volume ratio, porosity, flexible and multiple layer structures that can be incorporated on any device. Carbon in the composite improved conductivity, and mechanical stability of 3D printed zinc anode. Our 3D printed composite anodes allowed flexible designing of batteries surpassing conventional battery designs such as coin cells …
Date: December 2021
Creator: Amoko, Stephen Adot Oyo
Object Type: Thesis or Dissertation
System: The UNT Digital Library
3D Printing Press: Alternative Press Head

3D Printing Press: Alternative Press Head

3D PDF of ...
Date: April 1, 2020
Creator: Wingate, John
Object Type: Dataset
System: The UNT Digital Library
3D Printing Press Closed

3D Printing Press Closed

3D PDF of ...
Date: April 1, 2020
Creator: Wingate, John
Object Type: Dataset
System: The UNT Digital Library
3D Printing Press Open

3D Printing Press Open

3D PDF of ...
Date: April 1, 2020
Creator: Wingate, John
Object Type: Dataset
System: The UNT Digital Library
3D Reconstruction Using Lidar and Visual Images (open access)

3D Reconstruction Using Lidar and Visual Images

In this research, multi-perspective image registration using LiDAR and visual images was considered. 2D-3D image registration is a difficult task because it requires the extraction of different semantic features from each modality. This problem is solved in three parts. The first step involves detection and extraction of common features from each of the data sets. The second step consists of associating the common features between two different modalities. Traditional methods use lines or orthogonal corners as common features. The third step consists of building the projection matrix. Many existing methods use global positing system (GPS) or inertial navigation system (INS) for an initial estimate of the camera pose. However, the approach discussed herein does not use GPS, INS, or any such devices for initial estimate; hence the model can be used in places like the lunar surface or Mars where GPS or INS are not available. A variation of the method is also described, which does not require strong features from both images but rather uses intensity gradients in the image. This can be useful when one image does not have strong features (such as lines) or there are too many extraneous features.
Date: December 2012
Creator: Duraisamy, Prakash
Object Type: Thesis or Dissertation
System: The UNT Digital Library
3Dhotbed

3Dhotbed

Presented at the 2017 Code4Lib South Central Conference. This presentation provides an overview of the 3Dhobed project, including the process of 3D scanning, modeling, and printing hand moulds for book history instruction.
Date: August 11, 2017
Creator: Jacobs, Courtney E.; McIntosh, Marcia & O'Sullivan, Kevin
Object Type: Presentation
System: The UNT Digital Library
3Dhotbed: Harnessing 3D Technologies and Data to Teach the History of the Book

3Dhotbed: Harnessing 3D Technologies and Data to Teach the History of the Book

Presentation at the 2017 Texas Conference on Digital Libraries. This presentation includes the case study of developing 3D models of the tools, hosting the resulting data in the digital library, and the pedagogical opportunities the project has afforded.
Date: May 24, 2017
Creator: McIntosh, Marcia; Jacobs, Courtney E. & O'Sullivan, Kevin
Object Type: Presentation
System: The UNT Digital Library
3DHotbed Project 2017-2018 Update

3DHotbed Project 2017-2018 Update

Presentation for the 2018 Day of Digital Humanities at the University of North Texas Libraries. This presentation provides an overview of the 3D History of the Book Education (3D Hotbed) project and an update on future developments.
Date: March 6, 2018
Creator: McIntosh, Marcia; Jacobs, Courtney E. & O'Sullivan, Kevin
Object Type: Presentation
System: The UNT Digital Library
3GPP Long Term Evolution LTE Scheduling (open access)

3GPP Long Term Evolution LTE Scheduling

Future generation cellular networks are expected to deliver an omnipresent broadband access network for an endlessly increasing number of subscribers. Long term Evolution (LTE) represents a significant milestone towards wireless networks known as 4G cellular networks. A key feature of LTE is the implementation of enhanced Radio Resource Management (RRM) mechanism to improve the system performance. The structure of LTE networks was simplified by diminishing the number of the nodes of the core network. Also, the design of the radio protocol architecture is quite unique. In order to achieve high data rate in LTE, 3rd Generation Partnership Project (3GPP) has selected Orthogonal Frequency Division Multiplexing (OFDM) as an appropriate scheme in terms of downlinks. However, the proper scheme for an uplink is the Single-Carrier Frequency Domain Multiple Access due to the peak-to-average-power-ratio (PAPR) constraint. LTE packet scheduling plays a primary role as part of RRM to improve the system’s data rate as well as supporting various QoS requirements of mobile services. The major function of the LTE packet scheduler is to assign Physical Resource Blocks (PRBs) to mobile User Equipment (UE). In our work, we formed a proposed packet scheduler algorithm. The proposed scheduler algorithm acts based on the number …
Date: December 2013
Creator: Alotaibi, Sultan
Object Type: Thesis or Dissertation
System: The UNT Digital Library
3rd African Drought Adaptation Forum report, Addis Ababa, Ethiopia, 17-19 September 2008 (open access)

3rd African Drought Adaptation Forum report, Addis Ababa, Ethiopia, 17-19 September 2008

The Third African Drought Adaptation Forum was held in September 2008 in Addis Ababa, Ethiopia. The Forum was organized so that participants could exchange practical experiences, findings and ideas on how to adapt to the increasing threat of drought and climate change in the drylands of Africa. The report contains a summary of sessions and outlines key themes that emerged from the discussions.
Date: September 2008
Creator: UNDP Drylands Development Centre; United Nations Office for Disaster Risk Reduction & Economic Commission for Africa
Object Type: Text
System: The UNT Digital Library
7th Street in Cushing, TX

7th Street in Cushing, TX

Westward facing photograph of 7th street storefronts in Cushing, TX.
Date: September 1, 2018
Creator: Hicks, William
Object Type: Photograph
System: The Portal to Texas History
7th Street in Cushing, TX

7th Street in Cushing, TX

Northeastern facing photograph of the 7th Street Restaurant, abandoned and other storefronts in Cushing, TX.
Date: September 1, 2018
Creator: Hicks, William
Object Type: Photograph
System: The Portal to Texas History
The a Cappella Choral Music of Benjamin Britten (open access)

The a Cappella Choral Music of Benjamin Britten

The twentieth century has witnessed a renaissance in the composition of choral music. Not since the Baroque, has choral writing held the prominent position with composers that it has today. At the same time, English composers have regained a stature and influence they have not held since the time of Purcell. It was not until the time of Edward Elgar, Gustave Holst, and Ralph Vaughn-Williams that English music began to recover from the decline of the nineteenth century. Benjamin Britten has played a large role in both the choral renaissance and the recovery of English music.
Date: August 1963
Creator: Corse, Larry B.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
D. A. Kolb’s Theory of Experiential Learning: Implications for the Development of Music Theory Instructional Material (open access)

D. A. Kolb’s Theory of Experiential Learning: Implications for the Development of Music Theory Instructional Material

This research project evaluates the effectiveness of specific music theory instructional strategies in terms of D. A. Kolb’s theory of experiential learning and Kolb’s typology of individual learning style. The project provides an original methodology for the adaptation of music theory instructional material to the individual learning style types described in Kolb’s typology. The study compares the relative effectiveness of two music theory instructional sequences, one of which is adapted for all of the learning style modalities described in Kolb’s typology, and the other adapted for only a limited number of Kolb’s learning style types. In order to compare the potential “learning outcomes” produced by these instructional sequences, a detailed study is proposed, in which computer based instruction (CBI) will deliver the instructional sequences to research participants and electronically record the participants’ responses. The current study demonstrates the effective aspects of the original methodology and suggests methods for the successful adaptation of music theory instructional material to individual student learning styles.
Date: August 2001
Creator: Lively, Michael
Object Type: Thesis or Dissertation
System: The UNT Digital Library
AACR 2 Headings: A Five-Year Projection of Their Impact on Catalogs (open access)

AACR 2 Headings: A Five-Year Projection of Their Impact on Catalogs

Text providing an overview of research and results regarding the implementation of AACR2 (Anglo-American Cataloging Rules, Second Edition) and the effects on existing catalogs. It includes an overview of the problem and hypotheses, literature review, general research method, description of study libraries, differences found in samples between AACR 2 and pre-AACR 2 headings, conflicting headings found in catalogs, OCLC (Online Computer Library Center) and AACR 2 headings, summary and conclusions, and related appendices. Index starts on page 143.
Date: 1982
Creator: Taylor, Arlene G., 1941-
Object Type: Book
System: The UNT Digital Library