Results 21 to 30 of about 276,637 (305)

Investigation of Color Causing Minerals in Yellow-Red Colored Quartzite Jade Using the Synchrotron Radiation Technique

open access: yesYankuang ceshi, 2016
Jade-like cryptocrystalline-microcrystalline vein quartzite is called quartzite jade in the jewel business of China. Color is the main criteria for the value of quartzite jade, and therefore studying the coloration mechanism is very important for the ...
ZHANG Yong   +4 more
doaj   +1 more source

Design considerations for racking metal products in electrochemical solutions

open access: yesJournal of Architecture, Art & Humanistic Science, 2021
Electrochemical treatment is one of the most important processes used in completing and finishing the surface of the product to improve the aesthetic and phenotypic properties of it. This process gives a distinct impression to the consumer because of its
Marwa Abd Elrahman Ahmed Abd Elrahman   +2 more
doaj   +1 more source

Observation of Surface Microstructure of HPHT Synthetic Diamond Crystals and Genesis Discussion

open access: yesYankuang ceshi, 2019
BACKGROUND As the world's largest producer of synthetic diamonds, China accounts for more than 90% of the world's total production, of which high pressure-high temperature (HPHT) synthetic diamonds are dominant.
WU Xu-xu   +8 more
doaj   +1 more source

The Most Significant Troubles Caused By Disregarding Design Considerations In Plating Products Electrically

open access: yesJournal of Architecture, Art & Humanistic Science, 2022
KeywordsDesign considerations - electroplating troubleshooting- poor throwing power- anode’s shape The main objective of the electroplating process is coverage with uniform thickness distribution without any problem on the entire surface of the product ...
Marwa Abd Elrahman Ahmed Abd Elrahman   +2 more
doaj   +1 more source

Contemporary jewelry definitions

open access: yesModaPalavra e-periódico, 2016
Contemporary jewelry terminology is open to many criticism and weaknesses as it is confronted with the classic definition of jewelry and also often attached to the historical widespread idea of adornment and jewelry to modernity.
Marlon Aparecido Mercaldi, Mônica Moura
doaj   +1 more source

Cyanate Assimilation by the Alkaliphilic Cyanide-Degrading Bacterium Pseudomonas pseudoalcaligenes CECT5344: Mutational Analysis of the cyn Gene Cluster [PDF]

open access: yes, 2019
The alkaliphilic bacterium Pseudomonas pseudoalcaligenes CECT5344 can grow with cyanate, cyanide, or cyanide-containing industrial residues as the sole nitrogen source, but the assimilation of cyanide and cyanate takes place through independent pathways.
Cabello, Purificación   +5 more
core   +1 more source

Theoretical and experimental studies on the fabrication of cylindrical-electrode-assisted solution blowing spinning nanofibers

open access: yese-Polymers, 2021
Cylindrical-electrode-assisted solution blowing spinning (CSBS) is a novel technique of fabricating nanofibers. In this paper, a combination of numerical simulation, theoretical analysis, and experiment is used to study the influences of CSBS airflow ...
Zheng Wenxing   +4 more
doaj   +1 more source

The evolution of the jewelry status in the history of culture and its role in intercultural interactions

open access: yesНеофилология, 2022
It is interesting to consider the evolution of jewelry status in the history of culture and its role in intercultural interactions in the correlation of periods of conceptual social transformations.
M. G. Kruglova, A. A. Chervova
doaj   +1 more source

Optimal pricing using online auction experiments: A P\'olya tree approach

open access: yes, 2012
We show how a retailer can estimate the optimal price of a new product using observed transaction prices from online second-price auction experiments.
George, Edward I., Hui, Sam K.
core   +1 more source

A new probabilistic model: Its implementations to the reliability products and art tools

open access: yesAlexandria Engineering Journal
This article delves into the critical role that probability-focused methodologies play in the fields of reliability sciences and the arts, ultimately leading to the introduction of a novel statistical model known as the new cosine exponentiated ...
Chaoyu Li   +4 more
doaj   +1 more source

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