• Korean Journal of Radiology
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• 제20권5호
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• pp.729-738
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• 2019

Objective: To assess the effects of iterative model reconstruction (IMR) on image quality for demonstrating non-calcific high-risk plaque characteristics of coronary arteries. Materials and Methods: This study included 66 patients (53 men and 13 women; aged 39-76 years; mean age, 55 ± 13 years) having single-vessel disease with predominantly non-calcified plaques evaluated using prospective electrocardiogram-gated 256-slice CT angiography. Paired image sets were created using two types of reconstruction: hybrid iterative reconstruction (HIR) and IMR. Plaque characteristics were compared using the two algorithms. The signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR) of the images and the CNR between the plaque and adjacent adipose tissue were also compared between the two reformatted methods. Results: Seventy-seven predominantly non-calcified plaques were detected. Forty plaques showed napkin-ring sign with the IMR reformatted method, while nineteen plaques demonstrated napkin-ring sign with HIR. There was no statistically significant difference in the presentation of positive remodeling, low attenuation plaque, and spotty calcification between the HIR and IMR reconstructed methods (all p > 0.5); however, there was a statistically significant difference in the ability to discern the napkin-ring sign between the two algorithms (χ² = 12.12, p < 0.001). The image noise of IMR was lower than that of HIR (10 ± 2 HU versus 12 ± 2 HU; p < 0.01), and the SNR and CNR of the images and the CNR between plaques and surrounding adipose tissues on IMR were better than those on HIR (p < 0.01). Conclusion: IMR can significantly improve image quality compared with HIR for the demonstration of coronary artery and atherosclerotic plaques using a 256-slice CT.

• International Journal of Human Ecology
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• 제8권1호
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• pp.95-107
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• 2007

The present study examined generational differences in ethnicity maintenance among Korean-Chinese to understand the impact of recent social change on a Korean-Chinese ethnic community in China. A total of 1355 Korean-Chinese (557 parents and 798 children), who live in Shenyang, China, participated in this study. The subjects were asked about their language use during daily conversations and cultural activities. They were also asked about their ethnic identity and perceptions of social distance from Chinese people. The results reveal that the Korean-Chinese parent generation is more likely to maintain its ethnic language, while the child generation is more likely to maintain its ethnic culture. Second, more parents than children considered themselves as 'Korean-Chinese' rather than 'Chinese'. Third, members of the child generation show less social distance from Chinese people than do the parent generation. These results show a strong tendency towards ethnicity maintenance among Korean Chinese as well as recent changes in the community. This study argues for the importance of school education and school environment in maintaining the ethnic language and culture of Korean-Chinese children.

• 건축사
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• 통권587호
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• pp.128-135
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• 2018

• 인문언어
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• 제7집
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• pp.31-56
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• 2005

In most Asian areas Chinese writing and characters had been used as a unique recording device. The way to account for the circumstance related with the writing system could be twofold. Firstly the races inhabited around Sino-territory actually neither used the type of languages as Chinese - not isolating type but agglutinative one - nor established any independent writing letters. Secondly those people who belonged to the races accepted the writing system of China due to the frequent cultural and economical interchange between them and Chinese people. In Korean peninsula the same situation of linguistic phenomenon had been pervasive. The aborigine of the territory who acquired to use Chinese writing applied their knowledge of the second language to record the facts related with the management of the country. But the grammatical structure of Chines writing and native language showed the remarkable contrast; so, the people of the peninsula managed the specific letter system - in other words, the discrepancy between language and writing. This difference carried on the huge influence on the way of using Chinese writing and characters in Korea. Some scholars of historical linguistics of Korean language considered the alternation of Chinese writing system and characters as "the procedure of nativization" - in which the inflow of characters into Korean and the same one continuously used in China illustrated the large gap of the phonological aspects. The method of reading Chinese characters came to be named as Sino-Korean Pronunciation. In the categorization of Chinese characters' pronunciation Sino-Korean Pronunciation was also categorized as the Eastern Pronunciation(東音). It indicates the sound of Chinese characters which has been historically adapted to the phonological system of Korean language. In this paper the main point is to survey the procedure of reception of Chinese writing and characters and that of establishment and alternation of Korean phonetic feature of Chinese writing and characters.

• Journal of Gastric Cancer
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• 제15권1호
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• pp.19-28
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• 2015

Purpose: To compare the clinicopathological data and long-term survival of gastric cancer patients in China and Korea. Materials and Methods: Patients who had undergone gastrectomy for gastric cancer between 1998 and 2009 in 2 high-volume institutions in both China (n=1,637) and Korea (n=2,231) were retrospectively evaluated. Clinicopathological variables, overall survival (OS), progression-free survival (PFS), and surgery-related complications were assessed for all patients and compared between the 2 institutions. Results: Chinese patients included in the study were significantly older and had a significantly lower body mass index (BMI) than the Korean patients. Esophagogastric junction tumors were more frequent in Chinese patients. However, the number of patients with stage I gastric cancer, the number of harvested lymph nodes, and the number of total gastrectomies were significantly higher in the Korean population. Korean patients also presented with fewer undifferentiated tumors than Chinese patients. Furthermore, Korean patients had prolonged OS and PFS for stage III cancers only. BMI, tumor-node-metastasis (TNM) stage, tumor invasion, number of positive lymph nodes, and distant metastases were all independent factors affecting OS and PFS. Conclusions: Although China and Korea are neighboring Asian countries, the clinicopathological characteristics of Chinese patients are significantly different from those of Korean patients. Korean gastric cancer patients had longer OS and PFS than Chinese patients. Influencing factors included TNM stage, tumor invasion, and lymph node metastasis.

• Korean Journal of Radiology
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• 제24권9호
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• pp.827-837
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• 2023

Objective: To investigate the predictive value of radiomics features based on cardiac magnetic resonance (CMR) cine images for left ventricular adverse remodeling (LVAR) after acute ST-segment elevation myocardial infarction (STEMI). Materials and Methods: We conducted a retrospective, single-center, cohort study involving 244 patients (random-split into 170 and 74 for training and testing, respectively) having an acute STEMI (88.5% males, 57.0 ± 10.3 years of age) who underwent CMR examination at one week and six months after percutaneous coronary intervention. LVAR was defined as a 20% increase in left ventricular end-diastolic volume 6 months after acute STEMI. Radiomics features were extracted from the oneweek CMR cine images using the least absolute shrinkage and selection operator regression (LASSO) analysis. The predictive performance of the selected features was evaluated using receiver operating characteristic curve analysis and the area under the curve (AUC). Results: Nine radiomics features with non-zero coefficients were included in the LASSO regression of the radiomics score (RAD score). Infarct size (odds ratio [OR]: 1.04 (1.00-1.07); P = 0.031) and RAD score (OR: 3.43 (2.34-5.28); P < 0.001) were independent predictors of LVAR. The RAD score predicted LVAR, with an AUC (95% confidence interval [CI]) of 0.82 (0.75-0.89) in the training set and 0.75 (0.62-0.89) in the testing set. Combining the RAD score with infarct size yielded favorable performance in predicting LVAR, with an AUC of 0.84 (0.72-0.95). Moreover, the addition of the RAD score to the left ventricular ejection fraction (LVEF) significantly increased the AUC from 0.68 (0.52-0.84) to 0.82 (0.70-0.93) (P = 0.018), which was also comparable to the prediction provided by the combined microvascular obstruction, infarct size, and LVEF with an AUC of 0.79 (0.65-0.94) (P = 0.727). Conclusion: Radiomics analysis using non-contrast cine CMR can predict LVAR after STEMI independently and incrementally to LVEF and may provide an alternative to traditional CMR parameters.

• 복식
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• 제36권
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• pp.97-107
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• 1998

This is a studying on Chinese round neckline. Chinese round neckline is originate from Kucha and Bei-Wei. After round neckling was flown into Chinese, it had been worn in all classes including Emperor as well as common people. Women-talents and court ladis-likes to wear it too, especially Tang Dynasty. This study is describe processes of changes and characters of Chinese. The first inflow time of round neckline into China was assumed in Bei-Wei. In Bei-Chi, it changed right lapel and it fastened by a button. In Chinese each dynasty, Round neckline had been worn in Emperor, common people talents and a part of court ladies.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2017년도 춘계학술대회
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• pp.507-509
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• 2017

의료관광은 최첨단 의료 시설과 기술로 외국인을 유치해 단순히 시술이나 치료를 하는 것 뿐만 아니라 휴양이나 레저, 문화 활동을 관광과 연계하는 산업으로 21세기 건강 추구형 라이프 스타일 변화에 따라 블루오션으로 떠오르는 산업 분야 이다. 의료와 관광의 목적을 동시에 들고 입국하는 중국인들이 많다. 하지만, 의료관광에 대한 시스템이 제대로 지원되지 않고, 중국인을 위한 의료 보험혜택이 전혀 되지 않기 때문에 이러한 중국인들을 위해 안전한 병원과 가이드를 연결하고, 중국인들에게 제대로 된 정보가 제공될 시스템 개발이 필요하다. 본 논문에서는 병원과 중국인 관광객, 중개인 간의 효과적인 연결방법에 대한 의료관광 서비스 시스템을 제안하고자 한다.

• 건축역사연구
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• 제32권3호
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• pp.7-20
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• 2023

The compositions of ethnic groups in Macau vary with time. Prior to the opening of the port, the majority of the residents in Macau were Chinese people, including those living on land and at sea. After the port was opened, with the increase of Portugal businessmen and missionaries, the population was divided into Chinese people and foreigners (so-called 'Yiren' or 夷人 in Chinese). Chinese people living on land were mainly of Hakka, Fujian, and Cantonese descent. Those living at sea were referred to as 'Tanka People' (named 'Danmin' or 蜑民in Chinese). They lived on floating boats for their entire lives and were similar to the 'drifters' in Japan. Since modern times, many refugees from mainland China and Southeast Asia flooded into Macau due to warfare. The development of industrialization required a larger number of laborers, and some 'coolies' entered Macau in legal or illegal ways, making it a multi-ethnic city. However, the Tanka people were not considered a minority ethnic group under the national ethnic policy of 56 ethnic groups since they did not have an exclusive language and shared dialects in different regions. As the ports inhabited by Tanka people gradually restored foreign trade, the boats and stilt houses used by Tanka people were dismantled to expand the infrastructure area of the ports. Many Tanka people began to live on land and marry people on land, leading to the disappearance of the Tanka group in Macau. The fishing boats and stilt houses used by Tanka people have also disappeared, with only a few remaining in areas such as Pearl River Delta and Hong Kong. This paper examines the natural and social environment of Tanka people in Macau from the Ming and Qing dynasties to the Republic of China, as well as the adaptive changes they adopted for the aforementioned environment in terms of living space and architectural type, on the basis of summarizing the historical activities of Tanka people. Finally, this study provides a layout plan and interior structure of the most commonly used boat for Tanka people from the Ming and Qing dynasties to the Republic of China, with the use of CAD and other technical software, along with reference to written historical documentation, and provides a case study for further research on the architectural history of Macau's inner harbor cities, from anthropological and folklore perspectives.

• 보건교육건강증진학회지
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• 제16권2호
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• pp.41-54
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• 1999

Health behaviors determine people's health status and the Quality of their life. Health education is the most effective method to change people's health behaviors in modem life. Therefore health education for adolescents is essencial to form desirable health behaviors and improve the Quality of their life. This study was administered to analyze important needs for the health education among Chinese, Korean -Chinese adolescents in Gilin, China and Korean adolescents in Seoul. Korea. The data were collected from 387 chinese and 74 Korean-Chinese boys and girls of 3 high schools in Gilin, China and 359 boys and girls of 3 high schools in Seoul, Korea. The results were as follow: 1. Forty percent of Korean students were sick during the past 4 weeks, but only 10.8％ of Korean-Chinese students and 9％ of Chinese students were sick. More than 70％ of Chinese and Korean-Chinese students had health concern, but only 26.6％ of Korean students were interested in health. 2. Korean-Chinese and Chinese students had higher health education needs than the Korean. They were not interested in sex education. On the other hand, Korean students were interested in mental health and not interested in consumer health education. 3. Korean-Chinese students had more health education needs than Chinese or Korean adolescents and the difference was statistically significant (p〈0.05). 4. In Korean-Chinese students, family income and academic grades were significantly related to their health education needs (p〈0.05). Among Chinese students, recent illness was related to their health education needs. In Korean students, the better health status and the more family income. the higher health education needs.