중국인 학습자 대상 한국어 발음 교육 연구 동향에 대한 한·중 비교 분석

유소소(Xiaoxiao Liu),전패영(Peiying Tian),한군(Jun Han),허방신(Fangchen Xu) 국제한국어교육학회 2023 한국어 교육 Vol.34 No.2

To compare and analyze the trends in Korean pronunciation education research targeting Chinese learners conducted in both Korea and China over the past decade by proposing implications and future directions for relevant research, this paper examined 186 pronunciation education-related studies in Korea and 90 in China between 2012 and 2022. Moreover, it analyzed the evolution of Korean pronunciation education research by categorizing it according to year, type, learner variable, research methodology, theme, and pronunciation elements by scrutinizing the changes and their underlying rationale. On this basis, the future directions for Korean pronunciation education research can be summarized as follows: Firstly, both Korean and Chinese academia must maintain a persistent interest in pronunciation education. Secondly, China must consistently produce research outcomes that can contribute to the academic development of Korean language education and provide a theoretical foundation for Korean pronunciation education. Thirdly, both Korean and Chinese future pronunciation education research should explore various learner factors by focusing on the pronunciation acquisition and education circumstances of specific learner groups. Fourthly, it is crucial for Chinese researchers to prioritize the use of objectives and multifaceted research methods based on experiments and statistics. Fifthly, both Korean and Chinese research should focus on learner assessment, teacher training, the development of ICT-based pronunciation education content utilizing multimedia, and the design of integrated functional education approaches. Lastly, both Korean and Chinese studies on suprasegmentals, phonological rules, and authentic pronunciation should be strengthened alongside those on segmentals.

한중 고등교육기관의 ‘중외합작판학中外合作办学’ 협력 현황 및 한국어교육에 대한 시사점

유소소(Xiaoxiao Liu) 한국중국문화학회 2024 中國學論叢 Vol.0 No.81

Although Chinese-Korean Cooperative Education(CKCE) has made remarkable progress over the past 22 years by achieving a scale comparable to Korean language departments in terms of institution establishment and student recruitment, teaching Korean language to the CKCE learners continues to be marginalized within Korean language teaching at Chinese universities. To explore the increasing prominence of Korean language education for the CKCE learners as a branch of Korean language education for non-Korean majors in Chinese universities, this study examines China's policies on Chinese-Foreign Cooperation in Running Schools(CFCRS) and the characteristics of Chinese-foreign cooperative education. As of January 2024, it examines the establishment status of CKCE institutions by year, type, degree program, region, and major, with characteristics of participating universities from both countries reviewed based on management subjects, school systems, rankings, and locations. Based on the analysis of the current status, it provides implications regarding the attributes and objectives of Korean language education, Korean language curriculum, contents and methods of Korean language education, as well as Korean language instructors and textbooks. 한중 고등교육기관의 ‘중외합작판학’ 협력은 지난 22년간 괄목할 만한 발전을 이루어 왔으며 기관 설립과 학생 모집 면에서 한국어학과에 뒤지지 않는 규모를 갖추고 있다. 그럼에도 이 학습자들을 대상으로 하는 한국어교육이 여전히 중국 대학 한국어교육에서 소외되고 있다. ‘중외합작판학’ 한국어교육은 중국 대학 한국어 비전공교육의 한 갈래로서 그 위상이 날로 높아지고 있다는 사실을 알리기 위해, 본고는 우선 중국의 ‘중외합작판학’ 정책과 중외합작교육의 특징을 간략히 살펴보았다. 다음으로 2024년 1월 기준 한중 합작기관의 설립 현황을 연도별, 유형별, 과정별, 지역별, 전공별로 고찰하고 경영주체, 학제, 순위, 소재지에 따른 한중 참여 대학의 특성도 검토하였다. 현황 분석 결과를 바탕으로 한국어교육의 성격 및 목표, 한국어 커리큘럼, 한국어교육의 내용 및 방법, 한국어 교수진 및 교재에 대한 시사점을 제시하였다.

OPT-VCG: A Novel Proposal for 3D SoC Test Optimization

Jingbo Shao,Yongqing Fu,Xiaoxiao Liu,Guohui Zhou 보안공학연구지원센터 2015 International Journal of Multimedia and Ubiquitous Vol.10 No.2

As an emerging technology for on-chip interconnect scaling in vertical direction in semiconductor industry, through-silicon-via (TSV) demonstrates its advantages and has been adopted for 3D SoC implementation. Optimal test architecture and test scheduling are significant for stacked 3D SoC design. However existing design methods cannot achieve both optimal test time and individual rationality. In this paper, game theory based 3D SoC test architecture optimization and test scheduling method is proposed under constraints of the available number of TSVs for test time minimization and rational test band width allocation. VCG algorithm is brought to 3D SoC design. Three kinds of stacked SoCs are built using ITC’02 SoC test benchmarks, and experimental results on them show the advantages of the proposed method over prior work.

Model Following Adaptive Control for a Class of Complex Dynamic Networks Based on the Dynamics of Links

Xiaoxiao Li,Yinhe Wang,Lizhi Liu 제어·로봇·시스템학회 2022 International Journal of Control, Automation, and Vol.20 No.7

This paper investigates the model following adaptive control problem for a class of time-varying complex dynamic networks. The complex dynamic network in this paper can be considered to be composed of two subsystems, the node subsystem and the link subsystem, which are mutually coupled. The dynamics of node subsystem are described by the state vector differential equation and the dynamics of link subsystem are described by the Riccati matrix differential equation. By using the information from the coupling matrix term in dynamics of link subsystem, the adaptive controller is synthesized for node subsystem such that each node is guaranteed to asymptotically track its reference model. Moreover, the results in this paper show that when the state of controlled node subsystem is tracking its reference model, the link subsystem also has the certain dynamic tracking target. Compared with the existing literature, the model matching conditions in this paper are greatly simplified due to the important effect of the dynamics of links. Finally, the given illustrated example is used to verify the validity of the results in this paper.

Shen-Kang protects 5/6 nephrectomized rats against renal injury by reducing oxidative stress through the MAPK signaling pathways

LIU, MEIYOU,PARK, JISOO,WU, XIAOXIAO,LI, YUWEN,TRAN, QUANGDON,MUN, KISUN,LEE, YONGJIN,HUR, GANG MIN,WEN, AIDONG,PARK, JONGSUN D.A. Spandidos 2015 INTERNATIONAL JOURNAL OF MOLECULAR MEDICINE Vol.36 No.4

<P>Chronic kidney disease (CKD) is a worldwide public health concern with limited treatment options. The incidence of CDK is increasing and the disease is associated with a poor quality of life and a high financial cost of treatment. Shen-Kang (SK), a traditional Chinese herbal medicine, has been used clinically in the treatment of renal diseases for decades. This study was carried out to validate the therapeutic effects of SK on renal injury induced by 5/6 nephrectomy, as well as its effects on the apoptosis of proximal tubule epithelial cells (HK-2 cells), in an aim to elucidate its mechanisms of action. For this purpose, an animal model of renal injury was created by subjecting rats to a 5/6 nephrectomy. The rats in the sham-operated and model groups received distilled water, while the rats in the SK and enalapril (EN) groups were treated with SK or EN. The levels of blood urea nitrogen (BUN) and serum creatinine (SCr) were measured. Kidney tissues obtained from the rats were stained with hematoxylin and eosin. HK-2 cells were employed to investigate the effects of SK on the apoptosis of renal proximal tubule epithelial cells induced by treatment with hydrogen peroxide (H<SUB>2</SUB>O<SUB>2</SUB>). In addition, cell viability was measured by MTT assay. Apoptotic events were monitored by western blot analysis, flow cytometric analysis and nuclear morphological anlaysis. The levels of intracellular reactive oxygen species (ROS) were measured by flow cytometric analysis with dihydroethidium staining. The results revealed that the administration of SK to 5/6 nephrectomized rats for 1 week significantly decreased the levels of SCr and BUN. The morphological observations of the kidneys also indicated the amelioration of damage to renal tissue. Treatment of the HK-2 cells with SK significantly protected the cells from H<SUB>2</SUB>O<SUB>2</SUB>-induced apoptosis, as indicated by an increase in cell viability, the decrease in the cleavage of poly(ADP-ribose) polymerase (PARP) and fewer condensed nuclei. H<SUB>2</SUB>O<SUB>2</SUB>-induced ROS production was also attenuated by treatment with SK. Of note, the increase in the levels of phosphorylated extracellular signal-regulated kinase (ERK) and phosphorylated p38 which occurred in response to exposure to H<SUB>2</SUB>O<SUB>2</SUB> was inhibited by treatment with SK. No changes were observed in the levels of phosphorylated JNK under the same treatment conditions. Thus, the mitogen-activated protein kinase (MAPK) signaling pathways play an essential role in the development of CKD. SK alleviated renal injury in rats induced by 5/6 nephrectomy and prevented the H<SUB>2</SUB>O<SUB>2</SUB>-induced apoptosis of HK-2 cells through the MAPK signaling pathways.</P>

Dietary Supplementation of Chinese Ginseng Prevents Obesity and Metabolic Syndrome in High-Fat Diet-Fed Mice

Xiaoxiao Li,Jing Luo,Pon Velayutham Anandh Babu,Wei Zhang,Elizabeth Gilbert,Mark Cline,Ryan McMillan,Matthew Hulver,Hana Alkhalidy,Wei Zhen,Haiyan Zhang,Dongmin Liu 한국식품영양과학회 2014 Journal of medicinal food Vol.17 No.12

Obesity and diabetes are growing health problems worldwide. In this study, dietary provision of Chinese ginseng (0.5 g/kg diet) prevented body weight gain in high-fat (HF) diet-fed mice. Dietary ginseng supplementation reduced body fat mass gain, improved glucose tolerance and whole body insulin sensitivity, and prevented hypertension in HF dietinduced obese mice. Ginseng consumption led to reduced concentrations of plasma insulin and leptin, but had no effect on plasma adiponectin levels in HF diet-fed mice. Body temperature was higher in mice fed the ginseng-supplemented diet but energy expenditure, respiration rate, and locomotive activity were not significantly altered. Dietary intake of ginseng increased fatty acid oxidation in the liver but not in skeletal muscle. Expression of several transcription factors associated with adipogenesis (C/EBPa and PPARc) were decreased in the adipose tissue of HF diet-fed mice, effects that were mitigated in mice that consumed the HF diet supplemented with ginseng. Abundance of fatty acid synthase (FASN) mRNA was greater in the adipose tissue of mice that consumed the ginseng-supplemented HF diet as compared with control or un-supplemented HF diet-fed mice. Ginseng treatment had no effect on the expression of genes involved in the regulation of food intake in the hypothalamus. These data suggest that Chinese ginseng can potently prevent the development of obesity and insulin resistance in HF diet-fed mice.

Variable Threshold Valued Tolerance Relation in Incomplete Information System

Liu ping,Xiong xiaoxiao,Yang Junping 보안공학연구지원센터 2016 International Journal of Hybrid Information Techno Vol.9 No.7

Aiming at the incomplete information systems on the condition of no prior domain knowledge, several known model extension based on the rough set theory are introduced at first, such as the tolerance relation, non-symmetric similarity relation, limited tolerance relation and valued tolerance relation. Then the merits and drawbacks of several existing valued tolerance relations are compared in this article. Next, the experiments on some UCI data sets have been done ,based on the experimental result, the author discuss the relationship between the threshold selection and classification accuracy of statistical valued tolerance relation(SVT) . Directing at the difficulty of selecting a suitable threshold, the author presents a new improved valued tolerance relation (NVT) which can choose proper threshold automatically on the basis of each data set’s feature. Experiment results indicate that the new relation can get better classification accuracy than the other extension models in dealing with the incomplete system which has small incomplete degree

ZnO Nanowires/ CdS Nanorods Structure Grown on Silica Micropillars Array for Photosensitive Application

Jing Liu,Yuanze Xu,Xiaoxiao Liang,Mingming Yan,Bo Wang,Tianchong Zhang,Zhen Hong,Futing Yi 대한금속·재료학회 2021 ELECTRONIC MATERIALS LETTERS Vol.17 No.6

Utilizing silica micropillar arrays as substrate, a kind of Zinc oxide (ZnO) nanowires/Cadmium sulfi de (CdS) nanopillars heterojunctionstructure is prepared successfully by twice hydrothermal reaction method. This ZnO nanowires/CdS nanorods/silicamicropillars structure is tree-liked morphology from the SEM and TEM images, and both the ZnO nanowires and CdS nanorodsare well crystallinity on the silica surface from the X-ray diff raction curves. The CdS nanorods/silica micropillars structure has alow refl ectivity to the incoming light for wavelength from 200 to 800 nm. After the ZnO nanowires growing, the refl ectivity oftree-liked structure is much lower than that without ZnO nanowires especially for the wavelength less than 350 nm. The resistanceresponse of the CdS nanorods/silica micropillars based photoresistors with and without ZnO nanowires are tested. And theresults reveal that the ZnO nanowires covering can improve the response of the CdS nanorods/silica micropillars photoresistors. The best photosensitivity response of the ZnO nanowires/CdS nanorods/silica micropillars photoresistor for 450 nm wavelengthlight with 5 mW/cm 2 illumination can achieve to 23.3, while that for CdS nanorods/silica micropillars photoresistors is 18.8.

The Future Is Now: Evidence from Crude Oil Futures Trading

최문섭,Tina Xiaoxiao Liu 한국재무관리학회 2019 財務管理硏究 Vol.36 No.3

The global crude oil markets have gained fervent academic attention since Adelman’s (1984) claim of a “great pool”. Recently, the Shanghai International Energy Exchange became one of the largest trading venues in the world within less than a year since the listing of crude oil futures. In this research, using the frameworks of the vector autoregression and vector error correction models, we analyze the co-movement of crude oil futures prices among Shanghai crude, Brent crude, and West Texas Intermediate (WTI) crude. We find that Shanghai Granger-causes Brent and WTI, but not vice versa. Moreover, vector autoregression and vector error correction models imply that nearly half of Brent and WTI fluctuations originates from Shanghai and the influence peaks out on the fourth trading day following the initial shock. This research contributes to the literature as a documentation of China’s leadership in the price discovery of futures prices of crude oil fragmented across the world.

Facile Fabrication of MCo2S4(M = Mn, Ni) Nanotube Arrays for High-Performance Supercapacitors

Peng Li,Xiaoxiao Ma,Fei Liu,Junhua Tan,Yanliang Zhao,Liyong Wang,Kaijin Zhu 대한금속·재료학회 2019 ELECTRONIC MATERIALS LETTERS Vol.15 No.4

MCo2S4(M = Mn, Ni) nanomaterials are attracting considerable attention because of their unique nanostructure, good redoxproperties, excellent theoretical capacitance, low cost and easy preparation. Herein, MCo2S4(M = Mn, Ni) nanotube arrayshave been fabricated by a one-pot hydrothermal method and could be used as conductive additive and binder-free electrodesfor supercapacitors. The results show that the specific capacitance of MCo2S4(M = Mn or Ni) nanotube arrays could reachas high as 2667 and 1623 F/g at the current density of 10 A/g, respectively, indicating high rate performance. Furthermore,the MnCo2S4nanotube arrays exhibited excellent cycling stability (68% of initial specific capacitance after 1800 cycles). These excellent electrochemical properties benefit from the synergistic effects of unique tubular microstructure and highconductivity of the samples.