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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
Object Type: Article
System: The UNT Digital Library
Liquid Cooled Stirling Engine with a Segmented Rotary Displacer (open access)

Liquid Cooled Stirling Engine with a Segmented Rotary Displacer

Patent relating to a liquid cooled stirling engine with a segmented rotary displacer.
Date: September 16, 2010
Creator: Foster, Phillip R.
Object Type: Patent
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
Structural design optimization of knee replacement implants for Additive Manufacturing (open access)

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
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