Results 21 to 30 of about 1,737 (200)

New Models for Home Health Care under Uncertainty with Consideration of the Coordinated Development of Economy and Environment

Complexity, Volume 2021, Issue 1, 2021., 2021
With the aggravation of population aging, home health care (HHC) services are paid more and more attention by the elderly. Previous studies aim at improving service quality and reducing cost, ignoring the coordinated and sustainable development of the economy and environment. From the perspective of sustainable development, this paper first establishes
Yan Cui, Lijun Zhang, Qiuye Gao, Bohao Li, Yumei Hou, Wei Zhang   +5 more
wiley   +1 more source

New Insights into the Coloration Mechanism in Spessartines and the Impact of Munsell Neutral Grey Backgrounds

Crystals, 2023
In this study about spessartines,13 spessartine samples with proper conditions are used for FTIR spectrum and UV-Vis spectrum tests to find the gemological characteristics and coloration mechanism.
Meilin Zhu, Ying Guo
doaj   +1 more source

Biomimetic one-pot synthesis of gold nanoclusters/nanoparticles for targeted tumor cellular dual-modality imaging. [PDF]

Nanoscale Res Lett, 2013
Lin J, Zhou Z, Li Z, Zhang C, Wang X, Wang K, Gao G, Huang P, Cui D.   +8 more
europepmc   +2 more sources

A Comparative Study on Gemological Characteristics and Color Formation Mechanism of Moqi Agate, Inner Mongolia Province, China

Crystals, 2023
Agate attracts the attention of gem mineralogists because of its variable colors. The color of agate is closely related to its naming and classification, so it is necessary to study the color and mineral origin of agate.
Sixue Zhang, Li Cui, Qingfeng Guo, Niu Li, Yang Liu, Yinghua Rao, Libing Liao   +6 more
doaj   +1 more source

Unconventional Magnetization below 25 K in Nitrogen-doped Diamond provides hints for the existence of Superconductivity and Superparamagnetism [PDF]

, 2019
The magnetization of nitrogen-doped single crystalline diamond bulk samples shows unconventional field and temperature hysteresis loops at T ≲ 25 K.
Barzola-Quiquia, J., Buga, S., Esquinazi, Pablo D., Kossak, W., Meijer, J., Molle, Axel, Pezzagna, S., Stiller, Markus, Wunderlich, R.   +8 more
core   +1 more source

Gemmological Characteristics of the “Jin Gao Yu” from Shangluo City, Qinling Mountains, Shaanxi Province, China

Crystals, 2023
In recent years, “Jin Gao Yu” that has been traded as a kind of jade has appeared in areas of the Luonan and Shangnan counties, Shangluo City, Shaanxi Province, attracting the attention of scholars and consumers for its delicate texture and warm color ...
Liangyu Liu, Niu Li, Qingfeng Guo, Shuxin Zhao, Yinghua Rao, Yang Liu, Libing Liao   +6 more
doaj   +1 more source

Emeralds from the Delbegetey deposit (Kazakhstan): mineralogical characteristics and fluid-inclusion study [PDF]

, 2006
The aim of this study is to provide the first detailed mineralogical and fluid-inc1usion description of emeralds from the Delbegetey deposit (Kazakhstan).
Calvo Pérez, Benjamín, Castroviejo Bolibar, Ricardo, García del Amo, D., Gavrilenko, Egor   +3 more
core   +2 more sources

Variation in Gemological Characteristics in Tsavorites with Different Tones from East Africa

Crystals, 2022
In this paper, the influencing factors of the color and the gemological changes of tsavorites with different tones from East Africa were studied. The gemological characteristics of 35 different green tones in tsavorites were collected based on the ...
Yuanmeng Ma, Ying Guo
doaj   +1 more source

Gemological features of diaspore in sodra—Milas (mugla) region

Frontiers in Earth Science, 2023
Diaspore, is related to bauxite in terms of its formation mechanism. Diaspore is one of the gemstone quality stones used in jewelry and jewelry making. It is possible to come across gemstones in various regions of the world.
Eyyüp Hikmet Kinaci, Alican Ozturk
doaj   +1 more source

The beast initiate: the lycanthropy of Heracles [PDF]

, 2019
The obscurantist Hellenistic poet Lycophron referenced the initiation of Heracles as a beast suckling the breast of the goddess Hera. This was the event that was the mythological origin of the Galaxy and of the lily flower that incarnated the same ...
Ruck, Carl
core   +2 more sources