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41 Matching Results
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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
Structural design optimization of knee replacement implants for Additive Manufacturing
Article describes study focused on proposing a setup of a proper methodology for the rapid development of optimized surgical implants.
Date:
July 18, 2019
Creator:
Peto, Marinela; Ramírez-Cedillo, Erick; Hernández, Adriana & Siller Carrillo, Héctor Rafael
Object Type:
Article
System:
The UNT Digital Library
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
Object Type:
Article
System:
The UNT Digital Library
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
Object Type:
Article
System:
The UNT Digital Library
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
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
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
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
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.
Object Type:
Article
System:
The UNT Digital Library
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
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
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
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.
Object Type:
Article
System:
The UNT Digital Library
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
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
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
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
Object Type:
Article
System:
The UNT Digital Library
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