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Yang Wu,Bingjian Zhang,Jianchao Zhang,Kuanrong Zhai,Li Luo 대한토목학회 2023 KSCE JOURNAL OF CIVIL ENGINEERING Vol.27 No.2
Fangshan Hanbaiyu is a typical white marble in China that was mainly used in high-grade royal buildings represented by the Forbidden City. Over centuries of natural erosion, most marble artifacts have undergone a variety of deterioration. Based on the deterioration investigation of a total of 726 balusters, 559 dragon heads, and 698 frieze panels around the Hall of Supreme Harmony (Taihe Dian), nondestructive testing technology, including portable x-ray fluorescence, colorimeter, and surface hardness tester, were also used to evaluate the weathering degree and analyze the relationship between the deterioration patterns and the type and spatial distribution of marble components. The results show that the temperature difference stress caused by solar radiation and the erosion caused by rainwater are the main reasons for the weathering. This explains why the components facing the South and East are more deteriorated. In addition, an evaluation method for stone relics deterioration based on three indicators (surface integrity, surface color, and surface hardness) of stone relics was established, and the health index of 12 typical marble components was calculated by this method, the values showed a good linear correlation with the field survey, which can provide a useful reference for subsequent investigation and assessment of the deterioration of the marble relics.
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Serum leptin, adiponectin and endometrial cancer risk in Chinese women
Yu Ma,Zhiwei Liu,Yan Zhang,Bingjian Lu 대한부인종양학회 2013 Journal of Gynecologic Oncology Vol.24 No.4
Objective: To investigate the relationship between serum concentrations of leptin or adiponectin, and endometrial carcinoma in Chinese women. Methods: We conducted a case-control study of a total of 516 Chinese women to detect the relationships between serum concentrations of leptin or adiponectin, and endometrial carcinoma in Chinese women. The study subject constituted 206 cases of endometrial cancer and 310 normal controls. Results: Patients with endometrial carcinoma had higher serum leptin concentrations than controls (28.8±2.2 ug/L vs. 19.8±1.4 ug/L; p<0.001). The adiponectin levels in patients were lower than in controls with borderline statistical significance (2,330.7±180.5 ug/L vs. 2,583.9±147.2 ug/L; p=0.078). Logistic regression analysis confirmed the associations between leptin or adiponectin, and endometrial carcinoma after adjustment for age, body mass index, fasting insulin, serum glucose, cholesterol, triglycerides, and high-density lipoprotein cholesterol (odds ratio for the top tertile vs. the bottom tertile: leptin 2.05; 95% confidence interval [CI], 1.28 to 3.29; p<0.001; adiponectin 0.52; 95% CI, 0.32 to 0.83; p<0.001). Conclusion: Increased leptin or decreased adiponectin levels are associated with endometrial carcinoma.
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Monitoring the Deterioration of Masonry Relics at a UNESCO World Heritage Site
Yang Wu,Qiang Li,Hanbing Tong,Zhang He,Jiangtao Qu,Bingjian Zhang 대한토목학회 2021 KSCE JOURNAL OF CIVIL ENGINEERING Vol.25 No.8
Since 2015, six typical masonry cultural relics around the China’s UNESCO World Heritage Site - the West Lake Cultural Landscape of Hangzhou have been systematically monitored from three aspects: deterioration patterns, physical and mechanical properties, and the changes of the micro-environment, using non-destructive testing equipment like optical microscope, ultrasonic pulse wave, Schmidt hammer, surface roughness tester, thermo-hygrometers, rain gauges, air quality monitors and so on. High-throughput sequencing technology had also been used to study distribution and diversity of microorganisms on the surface of masonry. Results show that the deterioration of relics can be reflected by their physical and mechanical properties, comprehensive evaluation of the heritage’s health state can be made through long-term continuous monitoring. It also found that different deterioration pattern will occur with different types of materials or in different preservation conditions, marble artifacts which completely exposed outdoors tends to significant degradation in just five years due to temperature fluctuations and acid rain. Besides, Microorganisms’ growth and propagation correlate positively with environmental conditions. As a case study, this paper described in detail the whole process of monitoring the deterioration of masonry relics at a UNESCO World Heritage sites, which may provide some references for researchers in similar fields.
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Jin Xun,Guo Xingle,Chen Jian,Li Jiasheng,Zhang Shufei,Zheng Sixu,Wang Yunpeng,Peng Ying,Zhang Kun,Liu Yifan,Liu Bingjian 한국유전학회 2023 Genes & Genomics Vol.45 No.3
Background In this study, the complete mitogenome of Hemigrapsus sinensis was the first identified and analyzed. Objective The complete mitochondrial genome of Hemigrapsus sinensis (Brachyura, Grapsoidea, Varunidae) and its phylogenetic position within Grapsoidea. Methods The sample of Hemigrapsus sinensis was collected and DNA was extracted. After sequencing, NOVOPlasty was used for sequence assembly. Annotate sequences with MITOS WebServer, tRNAscan-SE2.0, and NCBI database. MEGA was used for sequence analysis and Phylosuite was used for phylogenetic tree construction. DnaSP was used to calculate Ka/Ks. Results This mitochondrial genome shows that it was 15,900 bp and encoded 13 PCGs, 22 tRNA genes, two rRNA genes, and one control region. The genome composition tends to A + T (74.34%) and presents a negative GC-skew (− 0.22) and AT-skew (− 0.03). The PCGs initiation codon was the typical ATN and termination codon was the typical TAN, incomplete T or missing. The ML and BI trees showed that H. sinensis was most closely related to Hemigrapsus and clustered together with the Varunidae. And our phylogenetic trees provide proof that Ocypodoidea and Grapsoidea may be of common origin. Meanwhile, in the phylogenetic tree, parallel mixing of Chiromantes and Orisarma raised doubts over the traditional classification system. Besides, Incomplete Lineage sorting (ILS) was observed in Varunidae. In the subsequent analysis of evolution rate, we found that all of the PCGs (NAD4 was not calculated) had undergone negative selections, indicating the conservation of mitochondrial genes of H. sinensis during the evolution. Conclusion Therefore, researching the complete mitogenome of H. sinensis would be contributing to molecular taxonomy, phylogenetic relationship, and breeding optimization within the Grapsoidea superfamily.
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