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베트남 북부 대학 한국어 전공생을 위한 한국어 교재의 주제 선정 연구 - 중급1 선호도를 중심으로
TRAN THI THANH MAI,김낭예 한국외국어대학교 동남아연구소 2023 東南亞硏究 Vol.33 No.1
This study aimed to examine the topic selection of the Intermediate 1 Korean textbook for Vietnamese learners. This study compared and analyzed the topics of the Intermediate 1 Korean textbook used in representative Korean (language) departments in the north of Vietnam and the topics level 3 from the ‘Study on the Application of Korean Standard Curriculum for International Communication’. Based on this, the necessary topics used in survey were established. According to the results, a total of 101 sub-topics out of 17 major topics were selected. Using the constructed subject items, the preference survey was conducted targeting Korean (language) students at universities located in the northern region of Vietnam. Based on the preference scores for sub-topics from respondents, this study deduced the average score of major topics and suggested topics for each unit in Intermediate 1 Korean textbook. In addition, based on the reflected results of the preference survey, the educational environment and training time in Vietnam, 14 major topics were selected out of 17 major topics and divided into 14 units (‘Climate’, ‘Food and Drink’, ‘Culture’, ‘Leisure and Recreation’, ‘Work and Occupation’, ‘Travel’, ‘Education’, ‘Shopping’, ‘Personal details’, ‘Emotions’, ‘Daily life’, ‘Interpersonal relationships’, ‘Residence and environment’, and ‘Health’). Hopefully the results of this study will be used as basic data for choosing appropriate topics when developing Korean textbooks for Vietnamese learners in the future. 본 연구는 베트남인 학습자를 위한 중급1 한국어 교재의 주제를 선정하는 것을 목적으로 한다. 이를 위해 베트남 북부 지역의 대표적인 한국(어)학과에서 사용하고 있는 중급1 한국어 교재의 주제와 ‘국제통용 한국어 표준 교육과정 적용 연구’에 제시된 3급 수준의 주제를 비교, 분석하고 이를 바탕으로 선호도 조사에 포함할 주제 항목을 구축하였다. 그 결과 17개의 대주제와 각각의 대주제에 포함되는 101개의 소주제가 선정되었다. 이렇게 구축된 주제 항목을 활용하여 베트남 북부 지역 소재 대학의 한국(어)학과 학생들을 대상으로 선호도 조사를 실시하고, 그 결과를 바탕으로 대주제의 평균점수를 도출하여 중급1 한국어 교재의 단원별 주제를 선정하였다. 또한 선호도 조사 결과와 베트남 현지의 교육 환경 및 교육 시간을 반영하여 14개의 대주제를 선정하고 이를 14개 단원(‘기후’, ‘식음료’, ‘문화’, ‘여가와 오락’, ‘일과 직업’, ‘여행’, ‘교육’, ‘쇼핑’, ‘개인 신상’, ‘감정’, ‘일상생활’, ‘대인관계’, ‘거주와 환경’, ‘건강’)으로 구성할 것을 제안하였다. 본 연구의 결과는 향후 베트남인 학습자를 대상으로 한 한국어 중급1 교재 개발 시 주제 선정을 위한 기초 자료로 활용될 수 있을 것이다.
Hoang Anh Nguyen,Thi Nam Pham,Le Thanh Nguyen Huynh,Tran Ha Trang Nguyen,Viet Hai Le,Nguyen Thai Hoang,Thi Thom Nguyen,Thi Thu Trang Nguyen,Dai Lam Tran,Thi Mai Thanh Dinh The Korean Electrochemical Society 2024 Journal of electrochemical science and technology Vol.15 No.2
Due to its high theoretical capacity, Silicon (Si) has shown great potential as an anode material for lithium-ion batteries (LIBs). However, the large volume change of Si during cycling leads to poor cycling stability and low Coulombic efficiency. In this study, we synthesized Si/Carbon C45:Graphene composites using a ball-milling method with a fixed Si content (20%) and investigated the influence of the C45/Gr ratio on the electrochemical performance of the composites. The results showed that carbon C45 networks can provide good conductivity, but tend to break at Si locations, resulting in poor conductivity. However, the addition of graphene helps to reconnect the broken C45 networks, improving the conductivity of the composite. Moreover, the C45 can also act as a protective coating around Si particles, reducing the volume expansion of Si during charging/discharging cycles. The Si/C45:Gr (70:10 wt%) composite exhibits improved electrochemical performance with high capacity (~1660 mAh g<sup>-1</sup> at 0.1 C) and cycling stability (~1370 mAh g<sup>-1</sup> after 100 cycles). This work highlights the effective role of carbon C45 and graphene in Si/C composites for enhancing the performance of Si-based anode materials for LIBs.
Spectrum of Lysosomal Storage Disease Targeted for Newborn Screening in Vietnam
Dung, Vu Chi,Ngoc, Can Thi Bich,Khanh, Nguyen Ngoc,Mai, Do Thi Thanh,Thao, Bui Phuong,Mai, Tran Thi Chi,Ha, Nguyen Thu,Huong, Nguyen Thi Mai,Nam, Nguyen Hoang,Hai, Le Thanh,Tomatsu, Shunji,Yoo, Han-Wo Association for Research of MPS and Rare Diseases 2017 Journal of mucopolysaccharidosis and rare disease Vol.3 No.1
The Effect of Technology Spillover on Business Efficiency: A Case Study in Vietnam
Mai Lan PHUNG,Vu Hiep HOANG,Thi Thanh Huyen NGUYEN,Thi Thanh Van PHAM,Viet Tien TRAN,Van Hoa HOANG 한국유통과학회 2021 The Journal of Asian Finance, Economics and Busine Vol.8 No.5
The main objective of this study is to examine the interactive effect of technology spillover channels on business efficiency within the case study of manufacturing industry of Vietnam during the period from 2012 to 2018. The research model was developed with business efficiency as dependent variable and the relevant factors affecting the technology spillover capacity as independent variables. With a sample of 2,776 cross-sectional enterprises, panel data analysis approach was adopted to estimate the impact of technology spillover issue. Different spillover channels were also included in the analysis to enhance the empirical result. The study reveals that technology spillovers positively influence manufacturing business efficiency, in which horizontal spillover channel produces negative impact and vertical spillover channel, creates positive impact. Several factors that negatively affect the technology spillover capacity of businesses could be mentioned such as limited skills and experiences of workers, methods of implementing R&D, and the existence of FDI enterprises. Meanwhile, the rise of other factors related to joint-venture activities can help to increase the technology spillover capacity of businesses. In addition, skill and experience transfer makes a partial impact since this variable only positively affect the vertical spillover channel and provide no evidence of impact regarding horizontal spillover channel model.
Thanh Binh Mai,Thi Nga Tran,김동우,임권택,홍성수,박찬 한국물리학회 2015 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.66 No.1
A facile route for covalent functionalization of silica (SiO2) nanoparticles with poly(methylmethacrylate) (PMMA) has been investigated. The surfaces of the SiO2 nanoparticles were treatedwith 2-bromo-2-methyl-N-[3-(trimethoxysilyl)propyl] propanamide to introduce the initiator moietieson the surface. Subsequently, activators regenerated by using electron transfer atom transferradical polymerization (ARGET ATRP) of methyl methacrylate were employed for the preparationof SiO2/PMMA nanocomposites with a CuBr2/ N,N,N0,N00,N00-pentamethyldiethylenetriaminecatalyst system and a tin(II) 2-ethylhexanoate reducing agent. The modification of SiO2 was confirmedby surface analyses including Fourier transfer infrared spectroscopy and X-ray photoelectronspectroscopy. The morphology of the nanocomposites was investigated by using field-emission scanningelectron microscopy and transmission electron microscopy. A thermogravimetric analysis wasused to evaluate the thermal properties and the grafting density. The colloidal stability of silicananoparticles in a common organic solvent was explicitly shown to have been remarkably improvedby the grafting process.
Magnetic Properties and Magnetocaloric Effect at Room Temperature of Ni50−xAgxMn37Sn13 Alloys
Tran Dang Thanh,Nguyen Thi Mai,Nguyen Huy Dan,The-Long Phan,유성초 한국물리학회 2014 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.65 No.10
In this work, we present a detailed study of the magnetic properties and the magnetocaloric effectat room temperature of Ni50−xAgxMn37Sn13 alloys with x = 1, 2, and 4, which were prepared byusing an arc-melting method. Experimental results reveal that a partial replacement of Ag for Nileads to a decrease in the anti-FM phase in the alloys. In addition, the martensitic-austenitic phasetransition shifts towards lower temperature and is broaded. The Curie temperature (TAC ) for theaustenitic phase also shifts toward to lower temperature, but not by much. The Curie temperaturewas found to be 308, 305, and 298 K for x = 1, 2, and 4, respectively. The magnetic entropychange (Sm) of the samples was calculated by using isothermal magnetization data. Under anapplied magnetic field change of 10 kOe, the maximum value of Sm (|Smax|) was achieved ataround room temperature and did not change much (0.8 J·kg−1·K−1) with increasing Ag-dopingconcentration. Particularly, the M2 vs. H/M curves prove that all the samples exhibited a secondordermagnetic phase transition. Based on Landau’s phase-transition theory and careful analyses ofthe magnetic data around the TAC , we have determined the critical parameters ,, , and TC. Theresults show that the values are located between those expected for the 3D-Heisenberg model (= 0.365) and mean-field theory ( = 0.5). Such a result proves the coexistence of short-range andlong-range ferromagnetic interactions in Ni50−xAgxMn37Sn13 alloys. The nature of the changes inthe critical parameters and the |Smax| is thoroughly discussed by means of structural analyses.
Tran, Thi Nga,Mai, Thanh Binh,Bach, Long Giang,Islam, Md Rafiqul,Gal, Yeong Soon,Lim, Kwon Taek American Scientific Publishers 2015 Journal of Nanoscience and Nanotechnology Vol.15 No.1
<P>A new strategy has been developed for covalent incorporation of SiO2 nanoparticles (N-'s) in the CO2-based copolymer, poly(propylene carbonate-co-propylene oxide) (poly(PC-co-PO)). The poly(PC-co-PO)-g-SiO2 nanocomposites was prepared by the combination of epoxy-CO2 ring-opening polymerization and the condensation reaction of chloride and hydroxyl groups of the polymer and the SiO2 surface. FT-IR and NMR were employed for the characterization of the copolymers as well as nanocomposites. A uniform and spherical core-shell structure of poly(PC-co-PO)-g-SiO2 nanocomposites was demonstrated from TEM and SEM images. An improved thermal property of the polymer matrix with incorporating SiO2 nanoparticles was revealed by TGA study. The grafting of poly(PC-co-PO) considerably prevented the aggregation and improved the dispersibility of SiO2 nanoparticles in toluene.</P>
Chemical Constituents of the Leaves of Glochidion obliquum and Their Bioactivity
Tran Dinh Thang,Ping-Chung Kuo,Chun-Shu Yu,Yuh-Chiang Shen,Le Thi Mai Hoa,Tran Van Thanh,Yao-Haur Kuo,Mei-Lin Yang,Tian-Shung Wu 대한약학회 2011 Archives of Pharmacal Research Vol.34 No.3
A new flavonoid glycoside, globlin A (1), and eleven known compounds were isolated from methanolic extracts of the leaves of Glochidion obliquum. The structure of this new compound was established with a combination of 2D NMR techniques (COSY, NOESY, HMQC and HMBC) and HR-ESI-MS analyses. Chemical structures of the other known compounds were identified by comparison of their spectroscopic and physical data with those reported in the literature. Some of the isolates were examined for their bioactivities. Among the tested compounds, rotundic acid (4) displayed significant cytotoxicity and anti-inflammatory activities.