Results 21 to 30 of about 8,359 (263)

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

Personal HealthCare of Things: A novel paradigm and futuristic approach

open access: yesCAAI Transactions on Intelligence Technology, EarlyView., 2023
Abstract This study provides an investigative approach and offers a complete review of research on Internet of Medical Things (IoMT), describing the progress in general and highlighting the research issues, trends, and future aspects of IoMT. Exploring a research strategy for IoMT systems is vital as the need for IoT in healthcare grows. By aggregating
Surbhi Gupta   +5 more
wiley   +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

Spectroscopic Analysis of Varieties and Color Genesis in Emerald-Green Tourmaline Crystals

open access: yesCrystals
To reveal the varieties and color genesis of emerald-green tourmaline crystals from Tanzania, a systematic study was conducted using conventional gemological tests, X-ray diffraction, Fourier-transform infrared spectroscopy, polarized ultraviolet–visible
Ming Li, Yali Tang, Kun Li
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

Modular Critical Element Recycling Platform Using a Nanoporous Additively Manufactured Gyroid

open access: yesAdvanced Engineering Materials, EarlyView.
A modular recycling platform integrates 3D‐printed nanoporous gyroid structures to enable efficient critical element recovery. This system utilizes a hierarchical architecture, combining macroscopic channels with polymerization‐induced nanoscale porosity. By systematically tuning structural wall thickness and resin formulation, the platform achieves an
Xiangyu Gao   +6 more
wiley   +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

Treasures of the Elite of the Bulgharian Ulus of the Gol­den Horde

open access: yesЗолотоордынское обозрение, 2021
Research objectives: To analyze the materials of the most famous hoards of the Golden Horde era found on the territory of the Bulgharian ulus on the basis of a comprehensive analysis. To identify the coincidence of jewelry that they contained.
Rudenko K.A.
doaj   +1 more source

Extrusion‐Based Additive Manufacturing of Advanced Ceramics: Strengthening Mechanisms and Process Optimization Review

open access: yesAdvanced Engineering Materials, EarlyView.
This review comprehensively evaluates extrusion‐based additive manufacturing for advanced ceramics, detailing feedstock options and key process parameters. By critically addressing defect mechanisms like porosity and cracking, the work highlights optimization strategies through machine learning and advanced postprocessing.
Meisam Bakhtiari   +4 more
wiley   +1 more source

Application of Surface Contact Angle and Surface Tension Measurements in the Identification of Gem Materials

open access: yesYankuang ceshi, 2014
Surface tension is one of the important physical and chemical parameters of the solid surface, which is closely related to temperature and properties of the phases between the boundaries.
BAO Xue   +6 more
doaj   +2 more sources

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