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Xiuying Fang,Miao Yu,Dongming Zheng,Han Gao,Weishuai Li,Ying Ma 대한신경과학회 2023 Journal of Clinical Neurology Vol.19 No.1
Background and Purpose The electrophysiologic characteristics of peripheral neuropathy secondary to nitrous oxide (N2O) abuse remain unclear. The paper therefore aimed to summarize the electrophysiologic characteristics of N2O-associated peripheral neuropathy and identify the risk factors of severe nerve injury. Methods The electrophysiologic results and clinical data of patients with peripheral neuropathy secondary to N2O abuse at our hospital between 2018 and 2020 were analyzed retrospectively, and their electrophysiologic changes were summarized. Results Most patients exhibited decreased sensory and motor nerve conduction velocities (75% and 76%), decreased sensory nerve and compound motor action potentials (57% and 59%), and prolonged distal motor latency (59%), while a response was absent in 36%. These findings indicate that N2O abuse can result in generalized injury to sensory and motor nerves. Electrophysiologic results indicated axonal neuropathy in 37 cases (49%), demyelinating peripheral neuropathy in 4 (5%), and mixed neuropathy in 12 (16%). Peripheral nerve injury was more common in the lower limbs (72%) than in the upper limbs (42%, p<0.0001). The upper and lower limbs were primarily affected by sensory nerve demyelination (35%) and motor axonal injury (67%), respectively. Subgroup analysis indicated that longer N2O exposure and longer disease course were associated with more-severe motor axonal injury in the lower limbs. Conclusions N2O-associated peripheral neuropathy can lead to sensory and motor nerve injury, with axonal injury being the most common. Injuries were more severe in the lower limbs. Prolonged N2O exposure and disease course increased the severity of motor axonal injury in the lower limbs.
Bio-inspired synthesis and optical properties of Dy3+- doped ZnS nanoparticles
Xiuying Tian 한양대학교 세라믹연구소 2017 Journal of Ceramic Processing Research Vol.18 No.2
Dy3+-doped Zinc sulfide (ZnS) nanoparticles had been prepared via bio-inspired procedure and were characterized. Allsamples had cubic zinc blende structures. The typical sample had spherical structure with a diameter of ca. 68 nm. Withincreasing Dy3+-doped concentration, the bands attributed to C-O were shifted, due to the presence of Dy3+ ion in ZnS latticesite. The obtained bandgap were apparently lower than the reference value (~3.72 eV), beneficial for the photo-catalyticapplication. With increase of Dy3+-doped concentrations, enhanced photoluminescence (PL) of the sample at 1% wasattributed to large number of sulfur vacancies. The broad band with blue-green emission at ~ 500 nm indicated a considerablenumber of zinc vacancies to impart green emission and 4 F9/2- 6 H15/2 transitions of Dy3+ ions to impart blue emission.
Xiuying Liu,Xuan Zhang,Qian Zhou,Bing Bai,Shujuan Ji 대한화학회 2013 Bulletin of the Korean Chemical Society Vol.34 No.11
This paper reports a method using molecularly imprinted polymers that are grafted onto the surface of carboxylmodified multi-walled carbon nanotubes as the solid-phase extraction adsorbents to detect Rhodamine B in chili powder samples. The polymers were characterized by FTIR and TGA. Various parameters which probably influence efficiency of extraction were optimized. The analytical parameters such as precision, accuracy and linear working range were also determined in optimal experimental conditions. And the proposed method was applied to analysis of Rhodamine B in chili powder samples. The limits of detection and quantification were 2.57 and 8.56 μg/g, respectively. The recoveries for analytes were higher than 95% and relative standard deviation values were found to be in the range of 0.83-4.15%. This method was successfully applied for the determination of Rhodamine B.
Dark Field Digital Holographic Microscopy Based on Two-lens 360-degree Oblique Illumination
Xiuying Zhang,Yingchun Zhao,Caojin Yuan,Shaotong Feng,Lin Wang 한국광학회 2020 Current Optics and Photonics Vol.4 No.3
In this paper we propose a dark-field digital holographic microscopy system based on 360-degree oblique illumination. This setup is constructed without using a dark-field objective. The principle of 360-degree oblique illumination of vortex beam and dark-field digital holographic microscopy are introduced theoretically and experimentally. By analyzing the reconstructed image of a dark-field digital hologram of a USAF 1951 target, it is proved that the imaging resolution can be improved by this method. And also, comparison and analysis are made on the reconstructed image of a bright-dark field digital hologram of a pumpkin stem slice, the result shows that the imaging contrast is also enhanced with this method, and it is effective for dark-field digital holographic microscopy imaging of large transparent biological samples.
Xiuying Zhao,Yihan Xian,Chao Wang,Liren Ding,Xianglong Meng,Weiyun Zhu,Suqin Hang 대한수의학회 2018 JOURNAL OF VETERINARY SCIENCE Vol.19 No.2
This study aimed to elucidate the effect of tryptophan (Trp) on gut hormone secretion as well as the roles of the calcium-sensing receptor (CaSR)and its downstream signaling pathway in gut hormone secretion by assessing swine duodenal perfusion in vitro. Swine duodenum was perfusedwith Krebs-Henseleit buffer as a basal solution. Various concentrations (0, 10, and 20 mM) of Trp were applied to investigate its effect ongut hormone secretion. A CaSR antagonist was used to detect the involvement of CaSR and its signal molecules. The 20 mM Trp concentrationpromoted the secretion of cholecystokinin (CCK) and glucose-dependent insulinotropic peptide (GIP), elevated the mRNA level of CaSR,and upregulated the protein levels of CaSR, protein kinase C (PKC), and inositol trisphosphate receptor (IP3R). However, NPS 2143, aninhibitor of CaSR, attenuated the CCK and GIP release, reduced the mRNA level of CaSR, and decreased the protein levels of CaSR, PKC,and IP3R with 20 mM Trp perfusion. The results indicate that CCK and GIP secretion can be induced by Trp in swine duodenum in vitro,and the effect is mediated by CaSR and its downstream signal molecules PKC and IP3R.
Xiuying Tian,Lei Li,Mengyuan Wei,Changyan Ji,Zhi Huang,Xin Liu,Jin Wen,Yangxi Peng 한양대학교 세라믹연구소 2021 Journal of Ceramic Processing Research Vol.22 No.5
CaTiO3: Eu3+ red phosphors with high thermal stability and temperature sensitivity were synthesized by KCl flux assisted solidphase reaction method and they had orthorhombic perovskite phase. CaTiO3:15%Eu3+ had the irregular particle structure,with mean particle size of about 1.58 μm, while CaTiO3:15%Eu3+ +6%KCl also had the irregular particle structure, with meanparticle size of about 2.25 μm. When Eu3+ ion concentration was 15mol%, concentration quenching phenomenon took place,which could be explained by electric dipole-dipole interaction due to the critical Eu3+- Eu3+ distance of ~ 8.93 Å. We found thatKCl flux could increase the particle size and crystallinity, which was beneficial to luminescence property. Based on the PLspectra excited at 398 nm, the color coordinates of CaTiO3:15%Eu3+ were (0.5911, 0.4008) and the color purity was 97.7%,while the color coordinates of sample CaTiO3:15%Eu3++ 6%KCl were (0.6042, 0.3895) and the color purity was 98.4%. Therelative intensity IR1 and IR2 at 423 K is 87. 29% and 83. 22%, indicating the sample had high thermal stability. Based on TCLsFIR, Sr of CaTiO3:15%Eu3+ is 2322.67/T^2. CaTiO3:Eu3+ red phosphor was expected to be a promising inorganic material forpossible applications in temperature sensing.
EVOLUTION OF KOREAN CHINESE FAMILY CULTURAL PSYCHOLOGY
Xiuying Yan,Shunji JIN,Weiyan Xiong 한국엔터테인먼트산업학회 2018 한국엔터테인먼트산업학회 학술대회 논문집 Vol.2018 No.7
Korean Chinese is a cross-border ethnic minority group immigrating to China from the Korean Peninsula. It has been more than 400 years since the 17th century when Koreans moved to and settled in Northeastern China. Among the current population of more than 1.8 million, most are descendants of the immigrants in the Free Immigration Period from 1910 to 1931. Korean Chinese has created a valuable material and spiritual wealth with their diligence and wisdom, and has become an indispensable part of China with its unique ethnic culture and characteristics. Korean Chinese family culture is gradually formed and developed in the long-term practices of production and life, and its unique value system and behavioral pattern make Korean Chinese a distinguish ethnic group. Under the influence of China’s “Regional Autonomy for Ethnic Minorities Policy,” Korean Chinese’s culture absorbs the essence of Chinese traditional culture, but also retains its outstanding characteristics. The evolution of Korean Chinese culture can be reflected by the generational development of the Korean Chinese families. In this article, three fourthgeneration families are chosen, whose ancestors moved to China in the Free Immigration Period. Interviews were conducted to investigate five dimensions regarding Korean Chinese family cultural psychology, including immigration history, the formation of ethnic identity, the usage of native language, ethnic cognitive and emotional development, and the construction of ethnic consciousness and education. The evolution of family members’ four psychological characteristics (knowledge, emotion, will, and behavior) was analyzed to explore the development and change of Korean Chinese family cultural psychology in different political, economic and cultural development periods.
창의성과 인성의 통합 관점에 따른 중국의 창의성과 인성 연구동향 분석
딩슈잉(Xiuying Ding),심효영(Xiaoying Shen),조부경(Bookyung Cho) 인문사회과학기술융합학회 2018 예술인문사회융합멀티미디어논문지 Vol.8 No.9
본 연구는 중국의 창의·인성 관련 논문에서 나타나는 창의성과 인성의 통합 관점에 대한 연구동향을 살펴보는 것에 목적이 있다. 이를 위해 중국의 대표 학술논문사이트인 CNKI(China National Knowledge Infrastructure)에서 2008년부터 2017년까지 10년 동안 이루어진 창의·인성 관련 논문 총 48편을 분석대상으로 선정하여 각 논문에 대한 관점과 연구내용을 분석하였다. 연구결과 첫째, 창의성과 인성의 통합 관점에 있어 인성을 함양하기 위해서는 창의성이 필요하다는 연구가 가장 많은 것으로 나타났고 창의성 개발을 위해서 인성이 필요하다는 연구가 그 다음이었으며 창의성과 인성을 동등한 관점으로 인식하고 통합하려는 관점은 나타나지 않았다. 둘째, 창의성과 인성의 연구내용을 분석한 결과 중국 전통사상의 새로운 전환과 창의인성교육의 실태 및 방안에 관한 연구가 가장 많이 나타났으며 그 다음으로 창의인성에 대한 기초연구, 창의인성과 다른 변인 간의 관계를 탐색하는 연구였다. 본 연구는 중국의 창의·인성의 관점과 연구내용을 알아보는 것을 통하여 창의·인성의 개념을 정립하기 위한 기초자료가 될 것이다. This study explored research trends on creativity and character-related articles in China. For this study, To this end, a total of 48 papers for academic journals and degree published over the last 10 years were collected from CNKI(China National Knowledge Infrastructure), the leading Chinese academic paper research site. They were used to analyze types of integration viewpoint and research contents. First, the analysis indicated that the 75% of examined character is more important, 25% of examined creative is more important, there was no viewpoint of creativity and character equally. Second, most research related with the new shift in Chinese traditional morality and the current state of creativity character education and plan, next is basic research of the creativity and character, the least research explores the relationship between creativity and character with other variables. This study is based on analyzing types of integration viewpoint and research subjects, it will be the basis for establishing the concept of creativity and character.
석수영(Xiuying Xi),리우팡(Fang Liu) 한국중원언어학회 2018 언어학연구 Vol.0 No.46
The aim of this study is to analyze the aspects of body terms used as classifiers in Korean and Chinese which are both classifier languages. Relevant body terms were collected from seven Korean texts including two dictionaries and five previous studies and five Chinese texts that include three dictionaries and two previous studies. At first, the object words are introduced. Body parts that are used in both languages in common are ‘head’, ‘nose’, ‘mouth’, ‘face’, ‘stomach’, ‘hands’, and ‘feet’. And then the cognitive aspects of the body term classifiers are investigated. In brief, body terms" classifier usages are founded on conceptual metonymy and metaphor mechanisms. The specific types of the mechanisms used in the process are part-whole metonymy, container-content metonymy, instrument-function metonymy, structural metaphor, image metaphor, and metonymy and metaphor"s complex. In the presence of body terms" classifier usages, Korean and Chinese present different aspects, but the roles of universal cognitive mechanisms are the same.