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According to the Goal: How Eliyahu Goldratt Helps Organizations Examine Their Processes to Achieve Maximum Results (open access)

According to the Goal: How Eliyahu Goldratt Helps Organizations Examine Their Processes to Achieve Maximum Results

Paper analyzes Eliyahu Goldratt’s Theory of Constraints and discusses how it's proposed business model has helped companies who implement it.
Date: 2005
Creator: Winter, Chrisitan
System: The UNT Digital Library
Algorithmically Optimized Hemispherical Dome as a Secondary Optical Element for the Fresnel Lens Solar Concentrator (open access)

Algorithmically Optimized Hemispherical Dome as a Secondary Optical Element for the Fresnel Lens Solar Concentrator

This article focuses on a way to maximize the concentration acceptance product (CAP), while using the minimum SOE and receiver geometry at a given f-number and incidence angle (also referred to as the tracking error angle). The laws of polychromatic light refraction along with trigonometry and spherical geometry were utilized to optimize the POE grooves, SOE radius, receiver size, and SOE–receiver spacing.
Date: July 8, 2019
Creator: Qandil, Hassan; Wang, Shuping & Zhao, Weihuan
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.
System: The UNT Digital Library
Application-based design of the Fresnel lens solar concentrator (open access)

Application-based design of the Fresnel lens solar concentrator

Article investigates a novel genetically themed hierarchical algorithm (GTHA) to design Fresnel lens solar concentrators that match with the distinct energy input and spatial geometry of various thermal applications.
Date: August 2, 2019
Creator: Qandil, Hassan; Wang, Shuping & Zhao, Weihuan
System: The UNT Digital Library
Design Concepts of Polycarbonate-Based Intervertebral Lumbar Cages: Finite Element Analysis and Compression Testing (open access)

Design Concepts of Polycarbonate-Based Intervertebral Lumbar Cages: Finite Element Analysis and Compression Testing

This article explores the viability of 3D printed intervertebral lumbar cages based on biocompatible polycarbonate (PC-ISO® material).
Date: April 18, 2016
Creator: Figueroa-Cavazos, J. Obedt
System: The UNT Digital Library
Development and Application of a Simplified Model for the Design of a Super-Tall Mega-Braced Frame-Core Tube Building (open access)

Development and Application of a Simplified Model for the Design of a Super-Tall Mega-Braced Frame-Core Tube Building

This article discusses the development and application of a simplified nonlinear model to compare two design schemes of a super-tall mega-braced frame-core tube building.
Date: December 16, 2014
Creator: Lu, Xinzheng; Xie, Linlin; Yu, Cheng & Lu, Xiao
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
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
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
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
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
System: The UNT Digital Library
Experimental study and finite element analysis of energy dissipating outriggers (open access)

Experimental study and finite element analysis of energy dissipating outriggers

This article uses experiments and finite element analyses to study the structural responses and energy dissipation capacities of three different outriggers of an actual tall building project.
Date: November 11, 2016
Creator: Yang, Qingshun; Lu, Xinzheng; Yu, Cheng & Gu, Donglian
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.
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.
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
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.
System: The UNT Digital Library
A Low-Cost Energy-Efficient Cableless Geophone Unit for Passive Surface Wave Surveys (open access)

A Low-Cost Energy-Efficient Cableless Geophone Unit for Passive Surface Wave Surveys

This article presents a hardware design for a low-cost energy-efficient geophone system to better facilitate field applications of the passive surface wave survey.
Date: September 25, 2015
Creator: Dai, Kaoshan; Li, Xiaofeng; Lu, Chuan; You, Qingyu; Huang, Zhenhua & Wu, H. Felix
System: The UNT Digital Library
Nanoindentation behavior of high entropy alloys with transformation-induced plasticity (open access)

Nanoindentation behavior of high entropy alloys with transformation-induced plasticity

Article describes an experiment where nanoindentation of three metastable dual-phase high entropy alloys (HEAs) was performed to obtain their inherent elastoplastic deformation responses.
Date: April 29, 2019
Creator: Sinha, S.; Mirshams, Reza; Wang, Tianhao; Nene, S. S.; Frank, M.; Liu, K et al.
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
System: The UNT Digital Library
Optical method for distance and displacement measurements of the probe-sample separation in a scanning near-field optical microscope (open access)

Optical method for distance and displacement measurements of the probe-sample separation in a scanning near-field optical microscope

This article presents an alternative optical method to determine the probe-sample separation distance in a scanning near-field optical microscope.
Date: May 18, 2016
Creator: Santamaria, L.; Garcia-Ortiz, C. E.; Siller Carrillo, Héctor Rafael; Cortes, R. & Coello, V.
System: The UNT Digital Library
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
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
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.
System: The UNT Digital Library
Process planning guidelines in selective laser melting for the manufacturing of stainless steel parts (open access)

Process planning guidelines in selective laser melting for the manufacturing of stainless steel parts

Article presents several process planning guidelines as a result of a selective laser melting (SLM) process calibration for a selected material (stainless steel 316L), with the intention of contributing in process parameters selection in net shape manufacturing.
Date: August 3, 2018
Creator: Ramírez-Cedillo, Erick; Sandoval-Robles, Jesús A.; Ruiz-Huerta, Leopoldo; Caballero-Ruiz, Alberto; Rodríguez, Ciro A. & Siller Carrillo, Héctor Rafael
System: The UNT Digital Library