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國際 마라톤 大會 共同 開催地 정주와 개봉시 住民 認識에 관한 考察
沙强(Sha, Qiang),朴俊勇(Park, Jun-Yong) 청운대학교 관광산업연구소 2012 관광산업연구 Vol.6 No.1
China Zhengkai International Marathon is a famous international sports competition of China. In particular, Zhengkai International marathon was conducted at Zhengzhou and Kaifeng. so most residents are from city of Zhengzhou and Kaifeng. In this study, residents of China Zhengkai International Marathon may be segmented by Zhengzhou group and Kaifeng group in order to examine residents’ perception. Then find out residents’ perception differences between Zhengzhou and Kaifeng respondents. This study made four hypothesis for China Zhengkai International Marathon marathon citizen perception, regional impact, regional image and demographic factors. First, find out differences of citizen perception between Zhengzhou and Kaifeng respondents. Second, investigate differences of regional impact between Zhengzhou and Kaifeng respondents. Third, examine differences of regional image between Zhengzhou and Kaifeng respondents. Fourth, analyze differences of demographic factors between Zhengzhou and Kaifeng respondents.
Selective extraction of thorium to directly form self-assembly solid from HNO3 solution
Fang Zhang,Qiang Wu,Lei-Tao Sha,Yang Li,Xu-Xin Li,Ze-Yang Wang,Xuan Fu,Qing-Gang Huang,Bin Liu,Ze-Yi Yan 한국공업화학회 2023 Journal of Industrial and Engineering Chemistry Vol.123 No.-
Based on ions exchange between [DMDSA]+[Cl]- (Dimethyl distearyl ammonium chloride) and N,Ndialkyl-succinamide acid (SCA), three novel bifunctional [DMDSA]+[SCA]- ionic liquids (ILs) were firstlysynthesized for extraction of thorium (IV) by self-assembly strategy. The simultaneous extraction andsolidification of Th(IV) were unexpectedly realized in one-step operation using the present ILs in HNO3solution, and more than 99% thorium (IV) was enriched and immediately aggregated into selfassemblysolid at the biphasic interface. The self-assembly solid was further identified by FT-IR, SEM withelement mapping EDS and XPS analysis, and revealing that the self-assembly extraction (SAE) was triggeredby the amphiphilic [DMDSA]+ cations. A three-step extraction mechanism dominated by [SCATh(NO3)4]- was proposed based on the slope analysis method and HRMS analysis. The self-assembly extractionof Th(IV) exhibited the extremely excellent selectivity in the presence of U(VI) and typical lanthanideelements including La(III), Eu(III) and Lu(III), and the separation factors reached 2516 for Th/U, 1885 forTh/La, 1512 for Th/Eu and 558 for Th/Lu, respectively. The proposed SAE strategy was proved to be anefficient method for one-step separation and solidification of thorium ions from U(VI) and/or lanthanides.
A novel CCU approach of CO2 by the system 1,2-ethylenediamine+1,2-ethylene glycol
Jianbin Zhang,Bo Guo,Tianxiang Zhao,Feng Sha,Fei Zhang,Qiang Li 한국화학공학회 2016 Korean Journal of Chemical Engineering Vol.33 No.6
As a new, effective CO2 fixation system, 1,2-ethylenediamine and 1,2-ethylene glycol (EDA+EG) can efficiently activate CO2 and directly convert it into a novel CO2-storage material (CO2SM) with 46.3% yield. The aqueous CO2SM solution can react with Ca(OH)2-saturated limpid solution to generate morphology-controllable CaCO3 microparticles with additional CO2 bubbling and Ca(OH)2. Additionally, the aqueous EDA+EG solution could be recycled multiple times without significant loss of CO2 capturing and releasing capabilities.
Haokun Chen,Shumei Zhong,Liuling Wu,Yuanfeng Sha,Qiang Qin,Qi Qi Pang,Jia-Le Song 한국식품영양과학회 2021 한국식품영양과학회 학술대회발표집 Vol.2021 No.10
Understand the dietary conditions of freshmen in a medical university, and explore the correlation between their dietary patterns and physical fitness levels. A dietary frequency survey was carried out among 2125 freshmen to evaluate their nutrient intake. Factor analysis was performed to extract common factors and determine dietary patterns. According to the "National Standards for Students" Physical health", the freshmen were tested for physical fitness, and the correlation analysis was conducted between the results of physical fitness score and dietary patterns. Four dietary patterns were identified by factor analysis, which were healthy dietary pattern (HDP), high fat and high sugar pattern (HFP/HSP), preserved food pattern and trace element pattern (TEP). Spearman rank correlation analysis showed the HDP and TEP were significantly positively correlated with the fitness test scores (r=0.064,0.062, p< 0.01), while the HFP and HSP was significantly negatively correlated (r=-0.057,p<0.01). Our results suggest that a healthy diet was associated with improved physical fitness performance, while a high intake of fatty and sweetened foods was associated with the opposite.
Li Bai-Jian,Fu Wen-Qiang,Fu Xin-Sha,Huang Yan 한국강구조학회 2023 International Journal of Steel Structures Vol.23 No.4
Two laboratory tests were conducted to investigate the mechanical properties and develop a load-carrying capacity estimation method for reinforced concrete (RC) slab culverts rehabilitated with a grouted corrugated steel plate (CSP). Subsequently, 216 numerical models of RC slab culverts rehabilitated with different shapes of CSPs and grout strengths were established to investigate the influence of these parameters and the arch effect on the rehabilitated system. A mechanical model was proposed based on the elastic center method, and a load-carrying capacity estimation method of RC slab culverts rehabilitated with grouted CSPs was established and verified. It was concluded that the load-carrying capacity of the rehabilitated system increased with a decrease in the radius of the side walls and crown at a constant radius of the CSP haunch. At a constant radius of the side walls and CSP crown, the load-carrying capacity of the rehabilitated system increased with an increase in the haunch radius. The most effective way to improve the load-carrying capacity of the rehabilitated system was to increase the radius of the haunches and reduce the radius of the arch crown and side wall. The arch effect of the grout was related to the load type. The load-carrying capacity of the rehabilitated system was the highest when the CSP was similar to or the same as the arch axes of the grout. The most important function of the grout was to provide strong lateral restraint for the CSP, reducing the required span and improving the load-carrying capacity of the CSP. In addition, the shear strength of the grout contributed to improving the load-carrying capacity by exerting an arch effect or experiencing shear failure. The proposed load-carrying capacity estimation method is applicable to rehabilitated systems with a box or arch-type CSP. Our findings provide guidance for engineers to design similar rehabilitated systems.