Optomechanical Design for Precision Lens Positioning and Mounting (open access)

Optomechanical Design for Precision Lens Positioning and Mounting

This article presents a lens positioning and mounting in a few microns accuracy using a kinematic mount module.
Date: August 25, 2016
Creator: Wang, Shuping; Zhang, Chi; Alt, Mark; Davis, Colleen; Gardner, Michael L. & Ji, Zheng
Object Type: Article
System: The UNT Digital Library
Clutch Driven Reaction Wheel Steering Unit (open access)

Clutch Driven Reaction Wheel Steering Unit

Patent relating to a clutch driven reaction wheel steering unit.
Date: April 5, 2005
Creator: Smith, Monty J. & Maestas, Jeffrey E.
Object Type: Patent
System: The UNT Digital Library
Shaking Table Tests of Low-Rise Shear Walls Made of Recycled Aggregate Concrete (open access)

Shaking Table Tests of Low-Rise Shear Walls Made of Recycled Aggregate Concrete

This article investigates the dynamic behavior of shear walls made of recycled aggregate concrete (RAC).
Date: March 20, 2015
Creator: Zhang, Jianwei; Dong, Hongying; Cao, Wanlin & Yu, Cheng
Object Type: Article
System: The UNT Digital Library
Study of performance of high speed turning using the volumetric dimension coefficient of resultant cutting force (open access)

Study of performance of high speed turning using the volumetric dimension coefficient of resultant cutting force

This article describes the experimental study of the resultant cutting force evolution of two coating carbide and a cermet inserts, during the dry turning of AISI 1045 steel with 400, 500, and 600 m/min cutting speeds.
Date: July 2013
Creator: Hernández-González, L. W.; Pérez-Rodríguez, R.; Zambrano-Robledo, P. C.; Siller Carrillo, Héctor Rafael & Toscano-Reyes, H.
Object Type: Article
System: The UNT Digital Library
Direct Strength Method for Web Crippling of Cold-Formed Steel C- and Z-Sections Subjected to One-Flange Loading (open access)

Direct Strength Method for Web Crippling of Cold-Formed Steel C- and Z-Sections Subjected to One-Flange Loading

This article presents the development of a semi-analytical design approach for the web crippling strength using the Direct Strength Method concept.
Date: December 17, 2015
Creator: Dara, Martin & Yu, Cheng
Object Type: Article
System: The UNT Digital Library
Experimental Determination of Residual Stresses Generated by Single Point Incremental Forming of AlSi10Mg Sheets Produced Using SLM Additive Manufacturing Process (open access)

Experimental Determination of Residual Stresses Generated by Single Point Incremental Forming of AlSi10Mg Sheets Produced Using SLM Additive Manufacturing Process

This article focuses on investigating the residual stress values associated with a part fabricated by Selective Laser Melting technology (SLM) when this is subjected further to forces on single point incremental forming (SPIF) operation of variable wall angle.
Date: November 13, 2018
Creator: López, Cecilio; Elías-Zúñiga, Alex; Jiménez, Isaac; Martínez-Romero, Oscar; Siller Carrillo, Héctor Rafael & Diabb, José
Object Type: Article
System: The UNT Digital Library
Permeability Study of Austenitic Stainless Steel Surfaces Produced by Selective Laser Melting (open access)

Permeability Study of Austenitic Stainless Steel Surfaces Produced by Selective Laser Melting

In this article, permeability properties and surface roughness of stainless steel (SS316L) surfaces were evaluated through experimentation with three different laser scanning patterns (chessboard, meander, and stripe), and different sloping angles between the fabricated surface and the laser beam incident on the process. Results showed that for each scanning pattern, the roughness decreased as the sloping angle increased consistently in all experimental trials.
Date: November 24, 2017
Creator: Segura-Cardenas, Emmanuel; Ramírez-Cedillo, Erick; Sandoval-Robles, Jesús Alejandro; Ruiz-Huerta, Leopoldo; Caballero-Ruiz, Alberto & Siller Carrillo, Héctor Rafael
Object Type: Article
System: The UNT Digital Library
Study of PVD AlCrN Coating for Reducing Carbide Cutting Tool Deterioration in the Machining of Titanium Alloys (open access)

Study of PVD AlCrN Coating for Reducing Carbide Cutting Tool Deterioration in the Machining of Titanium Alloys

This article studies a thin nanocomposite film made out of AlCrN (aluminum-chromium-nitrite) to show experimental work in the deposition process and its characterization.
Date: March 5, 2013
Creator: Cadena, Natalia L.; Cue-Sampedro, Rodrigo; Siller Carrillo, Héctor Rafael; Arizmendi-Morquecho, Ana M.; Rivera-Solorio, Carlos I. & Di-Nardo, Santiago
Object Type: Article
System: The UNT Digital Library
Polymeric Materials Reinforced with Multiwall Carbon Nanotubes: A Constitutive Material Model (open access)

Polymeric Materials Reinforced with Multiwall Carbon Nanotubes: A Constitutive Material Model

This article discusses the modification of an existing material model to take into account softening and residual strain effects observed in polymeric materials reinforced with carbon nanotubes when subjected to loading and unloading cycles.
Date: April 12, 2013
Creator: Córdova, René K.; Elías-Zúñiga, Alex; Elizalde, Luis E.; Siller Carrillo, Héctor Rafael; Sánchez, José Antonio; Rodríguez, Ciro A. et al.
Object Type: Article
System: The UNT Digital Library
Evaluation of Superficial and Dimensional Quality Features in Metallic Micro-Channels Manufactured by Micro-End-Milling (open access)

Evaluation of Superficial and Dimensional Quality Features in Metallic Micro-Channels Manufactured by Micro-End-Milling

This article focuses on a set of experiments in the micro-milling of channels made of aluminum, titanium alloys and stainless steel.
Date: March 1, 2013
Creator: Monroy-Vázquez, Karla P.; Attanasio, Aldo; Ceretti, Elisabetta; Siller Carrillo, Héctor Rafael; Hendrichs-Troeglen, Nicolás J. & Giardini, Claudio
Object Type: Article
System: The UNT Digital Library
Rapid Fabrication of Disposable Micromixing Arrays Using Xurography and Laser Ablation (open access)

Rapid Fabrication of Disposable Micromixing Arrays Using Xurography and Laser Ablation

This article presents a novel split-and-recombine (SAR) array design adapted for interfacing standardized dispensing (handheld micropipette) and sampling (microplate reader) equipment.
Date: February 28, 2017
Creator: Martínez-López, J. Israel; Betancourt, H. A.; García-López, Erika; Rodríguez, Ciro A. & Siller Carrillo, Héctor Rafael
Object Type: Article
System: The UNT Digital Library
Experimental Study of Back Wall Dross and Surface Roughness in Fiber Laser Microcutting of 316L Miniature Tubes (open access)

Experimental Study of Back Wall Dross and Surface Roughness in Fiber Laser Microcutting of 316L Miniature Tubes

This article uses extensive experimentation to evaluate the effect of fiber laser micro-cutting parameters over average surface roughness and back wall dross in AISI 316L stainless steel mixture tubes.
Date: December 26, 2017
Creator: García-López, Erika; Medrano-Tellez, Alexis G.; Ibarra-Medina, Juansethi R.; Siller Carrillo, Héctor Rafael & Rodríguez, Ciro A.
Object Type: Article
System: The UNT Digital Library
Hydrostatic High-Pressure Post-Processing of Specimens Fabricated by DLP, SLA, and FDM: An Alternative for the Sterilization of Polymer-Based Biomedical Devices (open access)

Hydrostatic High-Pressure Post-Processing of Specimens Fabricated by DLP, SLA, and FDM: An Alternative for the Sterilization of Polymer-Based Biomedical Devices

This article assesses the effects of sterilization in materials manufactured using additive manufacturing by employing a sterilization technique used in the food industry.
Date: November 14, 2018
Creator: Robles Linares-Alvelais, José; Figueroa-Cavazos, J. Obedt; Chuck-Hernandez, C.; Siller Carrillo, Héctor Rafael; Rodríguez, Ciro A. & Martínez-López, J. Israel
Object Type: Article
System: The UNT Digital Library
Review of biomechanical studies of arteries and their effect on stent performance (open access)

Review of biomechanical studies of arteries and their effect on stent performance

This article aims to summarize part of the available literature that reports studies on biomechanical environment in healthy and diseased arteries using various analytical methods.
Date: April 26, 2014
Creator: Fortier, Aleksandra; Gullapalli, Vikranth & Mirshams, Reza A.
Object Type: Article
System: The UNT Digital Library
Transformational Paradigm for Engineering and Engineering Technology Education (open access)

Transformational Paradigm for Engineering and Engineering Technology Education

This paper discusses a transformational paradigm for engineering and engineering technology education at the baccalaureate level.
Date: November 2008
Creator: Barbieri, Enrique & Fitzgibbon, William
Object Type: Paper
System: The UNT Digital Library
Fuzzy logic scheme for tip-sample distance control for a low cost near field optical microscope (open access)

Fuzzy logic scheme for tip-sample distance control for a low cost near field optical microscope

This article proposes a fuzzy logic control scheme for a control algorithm used with a scanning near field optical microscope.
Date: December 2013
Creator: Márquez, J. A.; Cortes, R.; Siller Carrillo, Héctor Rafael; Coello, V. & Escamilla, D.
Object Type: Article
System: The UNT Digital Library
Analyzing the Effectiveness of Microlubrication Using a Vegetable Oil-Based Metal Working Fluid during End Milling AISI 1018 Steel (open access)

Analyzing the Effectiveness of Microlubrication Using a Vegetable Oil-Based Metal Working Fluid during End Milling AISI 1018 Steel

This article describes a study in which a vegetable oil-based lubricant was used to conduct wear analysis and to analyze the effectiveness of microlubrication during end milling AISI 1018 steel.
Date: April 15, 2014
Creator: Shaikh, Vasim; Boubekri, Nourredine & Scharf, Thomas W.
Object Type: Article
System: The UNT Digital Library
Xurography as a Rapid Fabrication Alternative for Point-of-Care Devices: Assessment of Passive Micromixers (open access)

Xurography as a Rapid Fabrication Alternative for Point-of-Care Devices: Assessment of Passive Micromixers

This article evaluates the viability of xurography as a rapid fabrication tool for the development of ultra-low cost microfluidic technology for extreme Point-of-Care (POC) micromixing devices.
Date: February 20, 2016
Creator: Martínez-López, J. Israel; Mojica, Mauricio; Rodríguez, Ciro A. & Siller Carrillo, Héctor Rafael
Object Type: Article
System: The UNT Digital Library
Seismic Response and Engineering of Cold-formed Steel Framed Buildings (open access)

Seismic Response and Engineering of Cold-formed Steel Framed Buildings

This article discusses a North American effort which formed as part of the NSF Network for Earthquake Engineering Simulation (NEES), known as Enabling Performance-Based Seismic Design of Multi-Story Cold-Formed Steel Structures (CFS-NEES), as it addresses seismic performance-based design for cold-formed steel framed buildings.
Date: May 26, 2016
Creator: Schafer, B. W.; Ayhan, D.; Leng, J.; Liu, P.; Padilla-Llano, D.; Peterman, K. D. et al.
Object Type: Article
System: The UNT Digital Library
Stress-Softening and Residual Strain Effects in Suture Materials (open access)

Stress-Softening and Residual Strain Effects in Suture Materials

This article focuses on the formulation of a constitutive equation to predict Mullins and residual strain effects of buna-N, silicone, and neoprene rubber strings subjected to small transverse vibrations.
Date: May 27, 2013
Creator: Elías-Zúñiga, Alex; Baylón, Karen; Martínez-Romero, Oscar; Rodríguez, Ciro A. & Siller Carrillo, Héctor Rafael
Object Type: Article
System: The UNT Digital Library
On B.S.E and B.S.ET for the Engineering Profession (open access)

On B.S.E and B.S.ET for the Engineering Profession

Article discussing biological systems engineering (B.S.E.) and a proposed model for baccalaureate programs for engineering education.
Date: 2010
Creator: Barbieri, Enrique; Attarzadeh, Farrokh; Pascali, Raresh; Shireen, Wajiha & Fitzgibbon, William
Object Type: Article
System: The UNT Digital Library
Evaluation Results of an E and ET Education Forum (open access)

Evaluation Results of an E and ET Education Forum

This article discusses evaluation results of an Engineering (E) and Engineering Technology (ET) education forum at the University of Houston. A central focus to these discussions revolved around whether Engineering and Engineering Technology exist as separate fields or whether there was value in thinking about them as part of a continuum.
Date: 2011
Creator: Ramos, Miguel; Chapman, Lauren; Cannady, Mac & Barbieri, Enrique
Object Type: Article
System: The UNT Digital Library
Experimental Investigation and Design Method for the Shear Strength of Self-Piercing Rivet Connections in Thin-Walled Steel Structures (open access)

Experimental Investigation and Design Method for the Shear Strength of Self-Piercing Rivet Connections in Thin-Walled Steel Structures

This article presents an experimental investigation on the shear strength of self-piercing rivet connections used in thin-walled steel structures.
Date: April 5, 2017
Creator: Yan, Weiming; Xie, Zhiqiang; Yu, Cheng; Song, Linlin & He, Haoxiang
Object Type: Article
System: The UNT Digital Library
Influence of PEEK Coating on Hip Implant Stress Shielding: A Finite Element Analysis (open access)

Influence of PEEK Coating on Hip Implant Stress Shielding: A Finite Element Analysis

This article proposes a design concept for hip implants, using a combination of metallic stem with a polymer coating.
Date: February 7, 2016
Creator: Anguiano-Sanchez, Jesica; Martínez-Romero, Oscar; Siller Carrillo, Héctor Rafael; Díaz-Elizondo, José A.; Flores-Villalba, Eduardo & Rodríguez, Ciro A.
Object Type: Article
System: The UNT Digital Library