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논문(論文) : 19세기 마르세유 항만의 기능변화와 도시공간구조
김나영 ( Na Young Kim ),현재열 ( Jae Youl Hyun ) 대구사학회 2011 대구사학 Vol.103 No.-
Changes of Harbors` Functions and the Urban Structure at Marseille in the Nineteenth-Century Kim, Na-young·Hyun, Jae-youl [Abstract] Marseille, the typical sea-port city of Mediterranean France, was the most representative port of French Colonial Empire in the 19th century. Studying on Marseille of that time would contribute to the typological understandings of the sea-port cities in the period of Imperialism. This article aims to present a type of development which a sea-port city of the colonial empire could take, by interrogating the changes of harbors` functions and the urban structure of Marseille in 19th century. The consequent findings are as follows. First, the population of Marseille had sharply risen from 1830 on, and increased three times from 1820 to 1870s. This increase of population marked the economic growth of the city. Carrying capacity of vessels entering the port of Marseille rising five times in 1825-1870 shows the scale and the process of this growth. However, this economic growth had attributed to the colonial expansion of France launched from 1830 on. Second, according to the rising traffic of port, the harbors of Marseille had been expanded to the north of old port(Vieux-Port) since 1840s. With their expansion, the harbors` functions of Marseille had changed simultaneously, adding the industrial function to the traffic and distributive functions. Second, the industrialisation of Marseille also occurred in association with these circumstances. As a result, new and factory industries, such as sugar refining, oily industry, soap industry, machinery manufacture and foundering, etc. were thriving in the city and its suburbs. However, the material sources of these industries were from the French colonies, and, thus, the industrialisation was highly dependent on the supply from colonies. This is a remarkable feature of the Marseille`s industrialisation, and it can be that this industrialistation was a type of development which the sea-port city of the colonialist Empire would take. Third, the changes of harbor`s functions and the industrialisation had caused the transformation of urban structure of Marseille. Most notable transformation was the extension of city scale. Also, the appearance and shape of city had changed geometrically and orderly with the constructions of the various official buildings and monuments through the French Second Empire. Fourth, withstanding the extensions and changes of urban structure, the social character of neighborhood did not change so much at same time. Unlike with Paris where the neighborhood had been divided sharply between the bourgeoisie and the working-classes as a result of Haussmanisation, Marseille witnessed the loose line of division between the higher and lower classes, except with the ``old city`` in the north of old port and the higher classes` neighborhood in the southeast of it. However, one another consideration of social character was the reduction of proportion of natives in the neighborhoods. Throughout the mid-century, numerous immigrants fluxed into Marseille as the skill and unskill workers, and they gradually spread into all of the neighborhoods in the city.
초등학교 실내환경에서 공기 중 세균과 진균의 분리 및 특성
김나영,김영란,김민규,조두완,김종설,Kim, Na-Yeong,Kim, Young-Ran,Kim, Min-Kyu,Cho, Du-Wan,Kim, Jong-Seol 한국미생물학회 2007 미생물학회지 Vol.43 No.3
울산 소재 초등학교 3곳의 교실과 복도에서, 배양가능한 공기중 세균과 진균의 농도를 조사하고, 이들 미생물을 분리한 후 동정하였다. 세균과 진균의 포집에는 충돌식 공기 채취기를 사용하였으며, 세균수와 진균수의 측정에는 각각 plate count agar와 dichloran rose bengal chloramphenicol agar를 사용하였다. 학기 중 세균 농도는 교실에서 $168{\sim}3,887MPN/m^3$ 복도에서 $168{\sim}6,339MPN/m^3$의 범위였으며, 진균 농도는 교실에서 $34{\sim}389MPN/m^3$, 복도에서 $91{\sim}507MPN/m^3$의 범위로, 상황과 학교에 따른 측정값의 편차는 세균에서 진균보다 더 크게 나타났다. 분리한 세균의 84%는 그람양성으로 관찰되었는데, 전체 시험한 세균의 61%는 Micrococcus 속으로, 이중 75%는 M. luteus로 확인되었으며, Staphylococcus속은 전체의 10%수준이었다. Micrococcus 속의 주요 발생원은 사람으로 생각되며, 함유한 색소나 높은 세포벽 함량 등의 생리적 특징이 이들 세균의 공기중 생존력을 높이는 것으로 추측된다. 포집한 시료로부터 15속의 사상성 진균을 확인할 수 있었으며, Cladosporium 속, Aspergillus 속, Penicillium속 등이 분리한 진균의 69%를 차지하였다. 1개 학교의 교실에서는 Stachybotrys속이 검출되었는데, 이 속의 S. chartarum은 많은 진균독소를 생산하는 것으로 잘 알려져 있다. 독소생산과 관련이 깊은 Aspergillus 속, Penicillium속, Stachybotrys 속에 대한 종 수준에서의 동정, 분리한 진균의 독소생산능력, 공기중 진균독소 검출 및 진균 농도와의 상관관계 분석 등에 대한 보다 체계적인 연구가 필요하다고 판단된다. Indoor airborne bacterial and fungal concentrations were examined at classrooms and corridors of 3 elementary schools in Ulsan. Airborne microorganisms were collected with an impaction-type air sampler using plate count agar and dichloran rose bengal chloramphenicol agar. During the semester, concentrations of bacteria ranged $168{\sim}3,887 MPN/m^3$ at classrooms and $168{\sim}6,339 MPN/m^3$ at corridors, while those of fungi ranged $34{\sim}389 MPN/m^3$ at classrooms and $91{\sim}507 MPN/m^3$ at corridors. The bacterial concentrations showed larger variations between situations and schools compared to those of fungi. When airborne bacteria were isolated and identified, 84% were observed as Gram-positive, and Micrococcus spp. was the most abundant group with 61% of tested isolates, followed by genus Staphylococcus with 10%. The Micrococcus spp. isolates, of which 75% were identified as M. luteus, appeared to be from human origins. The protective pigments and substantial cell wall of Micrococcus may provide selective advantage for their survival in the air. We also isolated and identified 15 genera of filamentous fungi. The most common culturable fungi were Cladosporium, Aspergillus and Penicillium, and these 3 genera were 69% of fungal isolates. Genus Stachybotrys, of which S. chartarum is a well known producer of many potent mycotoxins, was also detected from one of the schools. further systematic studies are necessary with an emphasis on species identification and mycotoxin production of isolated fungal genera, including Aspergillus, Penicillium, and Stachybotrys.
용담의 RAW 264.7 세포주에서의 Nitric Oxide 생성 저해물질
김나영,강태현,김도훈,김윤철,Kim, Na-Young,Kang, Tai-Hyun,Kim, Do-Hoon,Kim, Youn-Chul 한국생약학회 1999 생약학회지 Vol.30 No.2
Bioassay-guided fractionation of a $H_2O$ extract of the roots of Gentiana scabra has furnished 5-(hydroxymethyl)-2-furfural (1) as an inhibitory compound for nitric oxide (NO) production in murine macrophage RAW 264.7 cells stimulated with $interferon-{\gamma}$ plus lipopolysaccharide. Compound 1 showed the moderate inhibition of NO production with $IC_{50}$ value of $803\;{\mu}M$.
충남 일부 지역 대학생의 거주형태에 따른 식생활에 관한 연구
김나영,김성환,김은미,Kim Na-Young,Kim Sung-Hwan,Kim Eun-Mi 동아시아식생활학회 2006 동아시아식생활학회지 Vol.16 No.1
This study examined the dietary life by residence type of 409 university students (198 male and 211 female) in Chungnam They were divided into five groups according their residence: living in the family home a short distance from the university, living in the family home a long distance from the university, boarding house, self-boarding house, and university dormitory. In this study, the intake of food and nutrients and health, and dietary behaviors of each group were investigated through two-week questionnaire. The average age, height, weight, and BMI were 21.4, 175.3 cm, 68.9 kg, 22.3 in males, and 19.9, 162.3 cm, 53.3 kg, 20.2 in females, respectively. Dietary attitude of the students living in home was higher than that of the other student groups. The rate of breakfast intake and the frequency of eating 10 food items of subjects except processed food of self-boarding house group were lower than those of the other 4 student groups. These results suggest that university students of self-boarding house might have low ability of meal management and more reasonable nutrition education is needed for desirable food behaviors.
김나영,Kim, Na-Young The Korea Academia-Industrial cooperation Society 2020 한국산학기술학회논문지 Vol.21 No.4
본 연구는 영어 자막 활용의 순서가 국내 항공 대학 학생들의 영어 학습에 대한 자신감, 흥미, 및 동기에 미치는 영향을 조사한 것으로, 국내 한 대학의 항공서비스학과 재학생을 대상으로 하여 영어 자막 활용 순서에 따라 그들의 영어 학습에 대한 태도에 변화가 있는지 파악하는 것을 목적으로 한다. 본 연구에는 충청남도 소재의 한 대학에서 영어 수업을 수강하고 있는 60명의 대학생이 참여하였으며, 모든 참가자들은 항공서비스학과의 재학생들이었다. 총 16주 동안 일주일에 한번씩 2시간동안 영어 수업이 진행되었고, 모든 실험 및 자료 수집은 해당 수업시간 내에 이루어졌다. 영어 자막 활용의 순서에 따라 영어 학습에 대한 태도의 변화가 있는지 알아보기 위해 모든 실험이 끝난 후, 영어에 대한 자신감, 흥미, 그리고 동기와 관련한 설문이 진행되었다. 통계적으로 유의미한 결과를 보인 주 연구 결과는 다음과 같다. 설문 결과, 먼저 영어 자막을 먼저 보는 것이 국내 항공 대학 학생들의 영어에 대한 자신감과 흥미를 더욱 이끌어 낸다는 사실이 밝혀졌다. 하지만 영어 학습에 대한 동기 부여를 위해서는 영어 자막을 나중에 보는 것이 더욱 효과적이라는 것이 드러났다. 본 연구는 수업 목표에 따라 국내 영어 학습자들에게 영어 자막을 언제 제공해야 하는지에 대한 통찰력을 제공한다. This study examined the ordering effects of caption use on the English learning of aviation students. This study focused on the use of captions and the students' self-confidence, interest, and motivation for English learning. Sixty participants were divided randomly into the Caption 1 group (n = 30) and Caption 2 group (n = 30). During 16 weeks, the Caption 1 group was exposed to captioned media first, and then the same media with no captions was provided. The Caption 2 group was exposed to the non-captioned media first and then provided with captions on the second exposure. A survey was given to assess the attitude of each group to English learning. The survey results showed that all participants revealed moderately positive satisfaction on the use of captions in EFL classes. Regarding the ordering effects of caption use, the findings showed that the first exposure to the captions results in the students' self-confidence and interest. The second exposure to the captions, however, was beneficial for improving the students' motivation. From these findings, several pedagogical implications can be suggested.
공과대학 캡스톤 디자인의 학습성과에 대한 자기조절학습전략의 매개효과 검증
김나영,이소영,Kim, Na-Young,Lee, So Young 한국공학교육학회 2017 공학교육연구 Vol.20 No.5
This study aimed to identify the causal relationships among self-regulated learning strategy, problem solving efficacy, task value and learning outcome, and mediation effect of self-regulated learning strategy in engineering capstone design course. The data were collected from 363 university students who enrolled in capstone design courses and analyzed using structural equation modeling method. The results were: first, problem-solving efficacy and task value exerted significant effects on self-regulated learning strategy. Second, self-regulated learning strategy exerted significant effects on learning outcome, but problem-solving efficacy and task value did not. Third, problem-solving efficacy and task value showed significant indirect effects on learning outcome, which confirmed that self-regulated learning strategy fully mediated between two exogenous variables and learning outcome.
한국인 위암 진단에 있어 혈청 펩시노겐과 혈청 가스트린 검사의 역할
김나영,Kim, Na-Young 대한위암학회 2009 대한위암학회지 Vol.9 No.3
위암 발생률이 높은 우리나라에서는 위암이 발생할 가능성이 높은 고위험군에서 위암 발생 여부를 알 수 있는 생물학적 인자(biological marker)의 개발이 매우 중요한데 가장 많이 연구되는 인자로 혈청 펩시노겐(Pepsinogen)이 있다. 이에 소화기질환을 가지고 있는 환자군과 건강검진센터 수진자를 대상으로 한두 가지 연구에서 혈청 펩시노겐 검사에 영향을 주는 인자를 알아보고 위축성 위염이나 위암 진단에 있어 혈청 펩시노겐 검사의 역할을 알아보았다. 혈청 펩시노겐 검사에 영향을 주는 인자로는 H. pylori 감염이 가장 컸고, 다음으로 성별, 연령이 있었다. 이를 고려한 결과 한국인에서의 내시경적 위축성 위염 진단에 있어서 PG I/II ratio 기준은 H. pylori 감염 여부에 따라 달랐는데 H. pylori 감염이 없는 경우는 PG I/II ratio 6이, H. pylori 감염이 있는 경우는 국제적 기준인 PG I/II ratio 3이 예민도와 민감도에서 우수했다. 또한 한국인에서의 위암이나 위축성 위염 진단에 있어 PG I이나 PG II는 별로 유용하지 않은 반면 PG I/II ratio는 비교적 유용함을 알 수 있었고, 특히 H. pylori 감염이 있는 경우 PG I/II ratio $\leq3$ 이하가 위암 발생위험도 예측에 도움이 되었다. 결과적으로 혈청 펩시노겐을 위암이나 위축성 위염 진단 biomarker로 사용할 때는 기존의 국제적인 기준도 중요하지만 각 나라의 현실에 맞는 기준치 적용을 위해 validation study를 시행하고 사용하는 것이 바람직한 것으로 보인다. Serum pepsinogen (sPG) is a marker of gastric mucosal atrophy, a condition that has been associated with an increased risk of gastric neoplasia. A low sPGI level and a low PG I/II ratio have been associated with severe gastric atrophy, and are frequently found in gastric cancer. Because the prevalence of gastric cancer is high in Korea, it would be convenient if a good biomarker for gastric cancer were developed. Two studies recently investigated the efficacy of sPG along with Helicobacter pylori (H. pylori) as a screening tool for gastric cancer. In these studies, sPG was measured using a Latex enhanced Turbidimetric Immunoassay. We found that H. pylori IgG status, age and gender were associated with serum pepsinogen levels. Thus, to increase the ability of the PG I/II ratio to detect atrophic gastritis, the cutoff value for the PG I/II ratio should be stratified according to the H. pylori IgG status. In addition, a PG I/II ratio ($\leq3.0$), which has been widely used as an international standard for gastric cancer, was found to be a reliable marker for the detection of gastric dysplasia or gastric cancer, especially of the intestinal type. The efficacy of the test in Korea was lower than the efficacy in Japan. However, the detecting power of a PG I/II ratio ($\leq3.0$) was significantly increased in the presence of H. pylori. The ratio together with H. pylori psotivitiy could provide a means of identifying persons at high risk of developing gastric cancer in Korea.
Effects of Mobile Phone Use on Aviation Students' English Learning
김나영,Kim, Na-Young The Korea Academia-Industrial cooperation Society 2019 한국산학기술학회논문지 Vol.20 No.5
본 연구는 모바일폰 사용이 항공대학 학생들의 영어 학습에 미치는 영향을 조사하는 것을 목적으로 특히 외국어 학습에 정서적 요인이 미치는 영향을 고려하여 영어 학습에서의 자신감, 동기 및 불안감에 중점을 둔다. 본 실험을 위해 46명의 참가자들을 실험집단(n = 24)과 통제집단(n = 22)으로 무작위로 나누어, 16주 동안 실험집단에 속한 학생들에게 모바일폰을 이용한 총 10회의 영어 채팅에 참가하도록 하였다. 실험이 끝난 후 실험집단의 영어 학습을 위한 모바일폰 사용 경험을 파악하고, 실험집단과 통제집단의 영어 학습에 대한 태도를 비교하기 위해 설문 조사를 실시하였다. 주요 연구 결과는 다음과 같다. 실험집단의 참가자들은 통제집단의 참가자들보다 영어 학습에 대해 긍정적인 태도를 보였다. 특히, 모바일폰을 사용한 참가자들은 그렇지 않은 참가자들에 비해 영어에 대한 자신감이 더 높았고, 영어를 배우고자 하는 동기가 더 강했으며, 영어 학습에 대한 불안감은 더 낮은 것으로 나타났다. 이러한 결과는 항공대학 학생들의 성공적인 영어 학습을 위한 모바일폰 활용에 대해 통찰력을 제공함으로서, 각 대학의 교수학습지원센터(CTL)가 맡고 있는 역할에 시사점을 준다. The present study aims to investigate the effects of mobile phone use on aviation students' English language learning. Considering that affective factors have impacts on English language learning, this study focuses on confidence, motivation, and anxiety in English learning. For the current study, 46 college students were recruited. The participants were divided into one experimental group (n = 24) and one control group (n = 22) at random. During 16 weeks, the experimental group joined in chat via mobile phone while the control group did not. To understand the participants' experience of mobile phone use and to compare the attitudes towards English language learning, a survey was performed. Major findings are as follows: The experimental group showed more positive attitudes towards English learning than the control group did. Specifically, the participants who engaged in chat via mobile phone became more confident and motivated to learn English but less anxious about English learning. These results provide insights into the engagement in chat via mobile phone for aviation students' English learning. This study also suggests ways how CTL at universities can support their students' English language learning using mobile phones.
김나영,이재진,Kim, Na-Young,Lee, Jae-Jin 한국통신학회 2006 韓國通信學會論文誌 Vol.31 No.11C
본 논문에서는 차세대 대용량 데이터 저장장치로 부각되고 있는 홀로그래픽 데이터 저장장치를 위한 2차원 변조코드를 제안한다. 단위 면적당 기록 밀도의 증가로 인한 인접 심볼간 간섭과 3차원적인 홀그래픽 저장으로 인한 페이지간 섭 등에 강인한 성능을 갖도록 같은 페이지 내의 1과 0의 개수가 거의 동일하도록 설계하였으며, 또 가능한 많은 1과 0의 천이가 일어나도록 설계하였다. 제안된 코드의 코드율은 5/9로서 기존의 4/9 코드보다 25%의 코드율 개선을 하였다. In this paper, we introduce a two-dimensional modulation code for holographic data storage systems(HDSS), which is a candidate for the next generation data storage system. The two-dimensional(2D) intersymbol interference(ISI) induces higher bit error rate(BER). The balanced number of zeros(dark) and ones(light) in each page reduces inter-page interference(IPI). The code rate is 519. Although the proposed code has higher code rate than other 2D code with rate 4/9, the BER performances of two codes are similar.