Results 111 to 120 of about 822,489 (340)

Extraction method of Yuan blue and white porcelain pattern based on multi-scale Retinex and histogram multi-peak threshold segmentation

open access: yesHeritage Science
Aiming at the problem of "crystallization" on the surface of Yuan blue and white ceramics, which causes reflections and loss of image texture, an image processing method is proposed to repair the image texture information.
Qi Zheng   +5 more
doaj   +1 more source

Documentation of Additional Vessels from the Johns Site (41CP12), Camp County, Texas [PDF]

open access: yes, 2010
The Johns site (41CP12) is a Titus phase cemetery in the Prairie Creek valley in the Big Cypress Creek stream basin of the Northeast Texas Pineywoods. The Caddo artifacts from the site are from the Robert L. Turner, Jr. and Tommy John collections.
Nelson, Bo   +2 more
core   +1 more source

Explosive fragmentation of thin ceramic tube using pulsed power

open access: yes, 2005
This study experimentally examined the explosive fragmentation of thin ceramic tubes using pulsed power. A thin ceramic tube was threaded on a thin copper wire, and high voltage was applied to the wire using a pulsed power generator. This melted the wire
Honjo, Haruo   +2 more
core   +1 more source

Mechanical Behavior and Microstructural Changes Associated with Tensile Deformation above the Martensite Start Temperature during Quenching and Subsequent Partitioning of a Low‐Alloy 37SiB6 Steel

open access: yesAdvanced Engineering Materials, EarlyView.
A new experimental setup, incorporating digital image correlation and infrared thermography in combination with inductive‐conductive heating for precise temperature control, is used to analyze the mechanical behavior and microstructural changes of sheet metal under complex thermomechanical test conditions that represent quench and partitioning ...
Christian Illgen   +4 more
wiley   +1 more source

Caddo Ceramic Assemblages from Sites in the Ayish and Palo Gaucho Bayou Basins, San Augustine County, Texas [PDF]

open access: yes, 2016
In 1939 and 1940, G. E. Arnold recorded a number of archaeological sites in and around San Augustine, in East Texas, as part of a Works Progress Administration-funded (WPA) archaeological survey of East Texas.
Perttula, Timothy K.
core   +1 more source

Development of Aluminum Scandium Alloys for Hydrogen Storage Valves

open access: yesAdvanced Engineering Materials, EarlyView.
Different aluminum alloy series and various aluminum‐scandium alloys with differing Sc and Zr levels are evaluated for use in hydrogen storage valve production. The alloys undergo hardness testing, optical microscopy, and tensile strength analysis, with hardening behavior studied under varying conditions.
Francisco García‐Moreno   +4 more
wiley   +1 more source

Study of mechanical response in embossing of ceramic green substrate by micro-indentation [PDF]

open access: yes, 2008
Micro-indentation test with a micro flat-end cone indenter was employed to simulate micro embossing process and investigate the thermo-mechanical response of ceramic green substrates.
Liu, Y. C., Shan, X. -C.
core   +1 more source

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