The Earliest High‐Fired Glazed Ceramic in China: Evidence from a Glazed Ceramic Sample from the Lajia Site, Qinghai Province

Archaeometry ◽  
2018 ◽  
Vol 61 (3) ◽  
pp. 588-599
Author(s):  
X. Q. Zhou ◽  
J. F. Cui ◽  
X. Y. Ren ◽  
Q. Q. Wang ◽  
W. Du ◽  
...  
Keyword(s):  
Ceramic Sample ◽  
Qinghai Province ◽  
Lajia Site ◽  
Glazed Ceramic

Sustainable Development Capability in the Huangshui River Basin in Qinghai Province Based on Analyzing the Ecological Footprint

2010 ◽  
Vol 26 (3) ◽  
pp. 326-332
Author(s):  
Chuan-chuan ZHAO ◽  
Xiao-yang YANG ◽  
Feng-chen ZHANG ◽  
Xing-zhong YANG ◽  
Xu DONG ◽  
...  
Keyword(s):  
Sustainable Development ◽  
River Basin ◽  
Ecological Footprint ◽  
Qinghai Province ◽  
Development Capability

scholarly journals Water-Soluble Ions in Atmospheric Aerosol Measured in a Semi-Arid and Chemical-Industrialized City, Northwest China

Atmosphere ◽  
2021 ◽  
Vol 12 (4) ◽  
pp. 456
Author(s):  
Huimin Jiang ◽  
Zhongqin Li ◽  
Feiteng Wang ◽  
Xi Zhou ◽  
Fanglong Wang ◽  
...  
Keyword(s):  
Sulfur Oxidation ◽  
Northwest China ◽  
Water Soluble ◽  
Heterogeneous Reactions ◽  
Anthropogenic Source ◽  
Heating Period ◽  
Qinghai Province ◽  
Soluble Ions ◽  
Water Soluble Ions ◽  
Semi Arid

We investigated water-soluble ions (WSIs) of aerosol samples collected from 2016 to 2017 in Lanzhou, a typical semi-arid and chemical-industrialized city in Northwest China. WSIs concentration was higher in the heating period (35.68 ± 19.17 μg/m3) and lower in the non-heating period (12.45 ± 4.21 μg/m3). NO3−, SO42−, NH4+ and Ca2+ were dominant WSIs. The concentration of SO42− has decreased in recent years, while the NO3− level was increasing. WSIs concentration was affected by meteorological factors. The sulfur oxidation and nitrogen oxidation ratios (SOR and NOR) exceeded 0.1, inferring the vital contribution of secondary transformation. Meanwhile higher O3 concentration and temperature promoted the homogeneous reaction of SO2. Lower temperature and high relative humidity (RH) were more suitable for heterogeneous reactions of NO2. Three-phase cluster analysis illustrated that the anthropogenic source ions and natural source ions were dominant WSIs during the heating and non-heating periods, respectively. The backward trajectory analysis and the potential source contribution function model indicated that Lanzhou was strongly influenced by the Hexi Corridor, northeastern Qinghai–Tibetan Plateau, northern Qinghai province, Inner Mongolia Plateau and its surrounding cities. This research will improve our understanding of the air quality and pollutant sources in the industrial environment.

WEDM process optimization of sintered structural ceramic sample by using fuzzy-MPCI technique

2021 ◽  
Author(s):  
Ayan Pramanick ◽  
Saikat Mandal ◽  
Partha Pratim Dey ◽  
Probal Kr Das
Keyword(s):  
Process Optimization ◽  
Ceramic Sample ◽  
Structural Ceramic ◽  
Wedm Process

Numerical Simulation Study of a Novel Horizontally Layered Enhanced Geothermal System: A Case Study of the Qiabuqia Geothermal Area, Qinghai Province, China

2021 ◽  
Vol 30 (4) ◽  
pp. 1328-1340
Author(s):  
Kun Gao ◽  
Weiqun Liu ◽  
Tianran Ma ◽  
Yang Hu ◽  
Tian Fang ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Simulation Study ◽  
Geothermal System ◽  
Enhanced Geothermal System ◽  
Geothermal Area ◽  
Qinghai Province ◽  
System A

scholarly journals Molecular characteristics of Brucella melitensis isolates from humans in Qinghai Province, China

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Zhi-Jun Zhao ◽  
Ji-Quan Li ◽  
Li Ma ◽  
Hong-Mei Xue ◽  
Xu-Xin Yang ◽  
...  
Keyword(s):  
Tandem Repeats ◽  
Brucella Melitensis ◽  
Draft Genome ◽  
Geographic Origin ◽  
Variable Number ◽  
Human Brucellosis ◽  
Molecular Characteristics ◽  
Whole Genome ◽  
Qinghai Province ◽  
Variable Number Tandem Repeats

Abstract Background The prevalence of human brucellosis in Qinghai Province of China has been increasing rapidly, with confirmed cases distributed across 31 counties. However, the epidemiology of brucellosis transmission has not been fully elucidated. To characterize the infecting strains isolated from humans, multiple-locus variable-number tandem repeats analysis (MLVA) and whole-genome single-nucleotide polymorphism (SNP)-based approaches were employed. Methods Strains were isolated from two males blood cultures that were confirmed Brucella melitensis positive following biotyping and MLVA. Genomic DNA was extracted from these two strains, and whole-genome sequencing was performed. Next, SNP-based phylogenetic analysis was performed to compare the two strains to 94 B. melitensis strains (complete genome and draft genome) retrieved from online databases. Results The two Brucella isolates were identified as B. melitensis biovar 3 (QH2019001 and QH2019005) following conventional biotyping and were found to have differences in their variable number tandem repeats (VNTRs) using MLVA-16. Phylogenetic examination assigned the 96 strains to five genotype groups, with QH2019001 and QH2019005 assigned to the same group, but different subgroups. Moreover, the QH2019005 strain was assigned to a new subgenotype, IIj, within genotype II. These findings were then combined to determine the geographic origin of the two Brucella strains. Conclusions Utilizing a whole-genome SNP-based approach enabled differences between the two B. melitensis strains to be more clearly resolved, and facilitated the elucidation of their different evolutionary histories. This approach also revealed that QH2019005 is a member of a new subgenotype (IIj) with an ancient origin in the eastern Mediterranean Sea.

scholarly journals The complete chloroplast genome and phylogenetic analysis of Syringa reticulata subsp. amurensis (Rupr.) P.S.Green & M.C.Chang from Qinghai Province, China

2021 ◽  
Vol 6 (7) ◽  
pp. 1829-1831
Author(s):  
Jiuli Wang ◽  
Tian Tian ◽  
Xia Han ◽  
Bin Ye ◽  
Xiuling Ma ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
Chloroplast Genome ◽  
Complete Chloroplast Genome ◽  
Qinghai Province
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