가열조리에 따른 냉동식품의 아크릴아마이드 함량조사

이유진,김명길,권혜정,배호정,임경숙,백은진,이명진,You-Jin Lee,Myung-Gil Kim,Hye-Jung Kwon,Ho-Jeong Bae,Kyong-Suk Lim,Eun-Jin Baek,Myung-Jin Lee 한국식품위생안전성학회 2023 한국식품위생안전성학회지 Vol.38 No.6

본 연구는 가열하여 섭취하는 냉동식품 중 빵류 20건 및 서류가공품 30건과 식품접객업소의 조리식품 중 감자튀김 20건을 대상으로 가열조리에 따른 아크릴아마이드 함량을 분석하였다. 에어프라이어를 이용한 냉동식품의 조리 전·후 아크릴아마이드 함량과 식품접객업소 조리식품의 아크릴아마이드 함량을 LC-MS/MS를 이용하여 분석하고 비교하였다. 아크릴아마이드 함량은 에어프라이어 조리 후 빵류 4건에서 0.167-0.401 mg/kg, 서류가공품 24건에서 0.071-0.694 mg/kg으로 나타났으며, 식품접객업소 조리식품은 모든 제품에서 0.118-0.977 mg/kg으로 나타났다. 이 중 국내 아크릴아마이드 권장규격인 1 mg/kg을 초과한 제품은 없었다. 하지만 유럽연합의 benchmark level (0.5 mg/kg)을 초과한 냉동 제품 3건을 튀김기 조리법으로 가열 조리하였을 때, 서류가공품 1건이 국내 권장규격을 초과하여 1.83 mg/kg으로 검출되었다. 아크릴아마이드에 대한 국내 노출량이 증가하는 추세이므로 아크릴아마이드 저감화를 위해 지속적인 평가와 관리가 필요한 것으로 판단된다. This study aimed to investigate the acrylamide content in frozen food products after cooking. Twenty samples of bread (Group 1) and 30 samples of processed tuberous and corn vegetable products (Group 2) were selected. Acrylamide levels were quantified using liquid chromatography tandem-mass spectrometry (LC-MS/MS). The frozen food samples were heated using the air fryer cooking method according to the product packaging and were compared to ready-to-eat French fries (Group 3). The results showed that the acrylamide content was the highest in group 3, followed by that in group 2 and group 1. The acrylamide content of all the samples was found to be within the domestic recommended standard of 1 mg/kg. However, when the samples that exceeded EU benchmark level (0.5 mg/kg) were selected and cooked using the deep-fat frying method according to the product packaging, one of them showed the acrylamide content of 1.83 mg/kg, which exceeded the domestic recommended standard. The present study highlights the need for continued evaluation and management to reduce acrylamide contents in frozen foods, as increasing domestic exposure to acrylamide is concerning.

154kV 디지털변전소 준공을 위한 엔지니어링 및 수행결과 분석에 관한 연구

이유진,한정열,최종기,이남호,Lee, You-Jin,Han, Jeong-Yeol,Choi, Jong-Kee,Lee, Nam-Ho 한국조명전기설비학회 2016 조명·전기설비학회논문지 Vol.30 No.12

In June 2013, 154kV digital substation based on IEC61850 was established for the first time in South Korea. In 2016, digital substation of about 26 plants have operated all over the nation. A new technology called IEC61850-based substation automation successfully applied to a real system. Since the early 2000s, to apply a new technology called IEC61850-based substation automation successfully to a real system, we (KEPCO) have been developing the engineering and performance verification technology related to fields. In this paper, we illustrate our engineering experience with the contents of the analysis and verification results, also various field problems that have occurred in the field during the past years. Finally we suggest a useful information that can be considered when the new substation is installed.

시각적 전이에 기초한 1인 경험 내러티브에 관한 연구: COVID-19의 고립 요인을 중심으로

이유진,Lee, You-Jin 한국디지털정책학회 2022 디지털융복합연구 Vol.20 No.4

연구 목적은 COVID-19 사태 이후 1인이 경험한 고립 요인을 시각적 전이에 기초한 내러티브 방법으로 살펴, 1인 경험의 디자인 방향을 탐구하는 데 있다. 연구 범위는 비대면 디지털 플랫폼을 통해 참여한 20대 여성 8명의 COVID-19 경험이다. 연구 방법은 참여자가 COVID-19 상황과 유사한 디지털 이미지를 선택하여 이에 근거한 경험 사실을 기술하면, 이를 연구자가 미시적으로 분석한 것으로 한정한다. 분석 결과, 고립 요인은 대면 소통의 부족, SNS 의존, OTT 서비스 중독, 외부 장소 이용 및 활동 한정, 비대면 기술의 한계, 비대면 교육 효과의 한계, 감염병 우려 등으로 요약되었다. 그러므로 고립 극복 요소에 근거한 1인 경험 디자인 방향은 관계 회복을 위한 커뮤니케이션, 온·오프라인 통합의 비 경계 장소, 현존감 구현을 위한 디지털 융·복합 콘텐츠 등이 전제되어야 할 것으로 예측된다. The purpose of the study was to further investigate the direction for one-person experience design based on visual shift due to the isolation one has experienced after the COVID-19 and the factors regarding it. The study involves eight female participants who are in their twenties via digital platform. The participants were instructed to choose digital image similar to COVID-19 and to write down facts based upon the image and the researcher will look into the result microscopically. The researchers found that the isolation factors include decreased face-to-face communication, reliance on social media, heavy usage of OTT platform, limited outdoor occasion and activity, limitation of untact technology and education program, fear over the pandemic and so on. The study has shown that the one-person experience design should be heading in a direction where it adopts space design that can crossover online and offline world, digital complex design to embody realness as well as the communication design to regain the relationships with others.

사용자 경험 디자인의 사용자 중심성에 대한 의미 확장 연구

이유진,Lee, You-Jin 한국디지털정책학회 2021 디지털융복합연구 Vol.19 No.8

연구 목적은 20대 금융 애플리케이션 사용자의 비대면 글말 용언으로부터 사용자 경험 디자인(UX)의 확장 의미를 추출하는 데 있다. 연구 범위는 20대 남녀 20명의 비대면 글말 일상 언어이며, 연구 방법은 사용자의 용언을 중심으로 사용 속성을 범주화(Categories)하여 20대 사용자 중심의 의미를 도출하는 것이다. 연구 결과 20대 금융 플랫폼 애플리케이션 사용자의 사용 의미는 통합의 의미, 신뢰의 의미, 지속의 의미, 정보 인지와 정보 접근의 의미로 요약되었다. 또한, 사용자의 사용 속성은 보안성, 친숙성, 접근성, 작동 편이성, 시인성으로 집약되었다. 각각의 속성은 보안, 정보, 브랜드, 디자인과 융합된 의미 범주에서 나타났다. 종합하면, 용언 중심의 사용자 의미 분석은 기존의 객관적 의미 분별 측정에서 파악할 수 없었던 사용성 평가 문제를 보완하는데 효과적임을 알 수 있었다. The purpose of the study was to induce meaning of the UX design from users' interview. The study covers interviews from 20 untact finance application users in their twenties in written form. It aims to examine previous studies on UX design and to overcome their shortcomings by categorizing usability qualities focusing on verbs used in the interview. The followings are the result: Usability of UX design can be summarized into Unity, Trust, Persistency, Recognition and Approachability of the information to the 20 users in their twenties. As for the data earned from interviews focusing on verbs, usability included Security, Familiarity, Accessibility, Convenience of Operation and Visibility. Each of the qualities fell into related categories such as Security, Information, Brand and Design. In conclusion, analysis based on verb choices led to better understanding of the user-based experience compared to using objective means in previous studies and can be a suggestion to make up for errors in the former evaluation process.

예수셴의 『곰 토템』, 왜 문제적인가?

李有鎭(Lee, You-jin) 중국어문학연구회 2012 중국어문학논집 Vol.0 No.77

실시간 고해상도 컬러 영상 워핑을 위한 FPGA 기반 하드웨어 설계

이유진(You Jin Lee),류정래(Jung Rae Ryoo) 대한전자공학회 2021 전자공학회논문지 Vol.58 No.2

본 논문에서는 고해상도 컬러 영상 워핑의 실시간 처리를 위한 FPGA 기반 하드웨어를 설계한다. 영상 워핑은 입력 영상에 2D 좌표 변환을 적용하는 영상 처리 알고리즘으로 실시간 영상 워핑 구현을 위해서는 좌표 변환 연산, 픽셀 데이터 보간 연산, 그리고 고속 영상 버퍼 메모리 구조 등 3가지 문제에서 실시간 성능 및 정확성을 확보하여야 한다. 본 논문에서는 CFA 컬러 영상 워핑을 활용한 연산량 감소, 오프라인 캐시 스케줄링 및 캐시 메모리 분할 구조를 적용한 영상 데이터 캐시, 그리고 연산의 선후 관계 및 타이밍 조건을 고려한 병렬 처리 및 파이프라인 구조 등을 통하여 실시간 동작 성능을 확보한다. Full HD 해상도의 컬러 영상 입력에 대한 구현된 시스템의 동작 정확성을 PC 소프트웨어의 처리 결과와 비교/확인하고, 실시간 렌즈 왜곡 보정에 적용하여 구현된 시스템의 타당성을 검증한다. This paper presents a design of an FPGA-based hardware for real-time high-resolution color image warping. Image warping is an image processing algorithm applying 2D coordinate transformation to an input image. For real-time processing of image warping, real-time performance and accuracy are required in the following 3 problems, such as, computation of coordinate transformation, interpolation of pixel data, and fast image buffer memory structure. In this paper, real-time performance is guaranteed by the computationally efficient CFA color image warping, image data cache algorithm using offline cache scheduling and cache memory division, and a parallel operation and pipeline structure considering dependencies in operations and timing requirements. The implemented system is applied to some experiments using Full HD color image inputs, and the results are presented in comparison with the results of PC software to show the validity of the designed system.

나말여초(羅末麗初) 승려들의 입당구법(入唐求法)과 한중교류

이유진 ( You Jin Lee ) 東亞大學校附設 石堂傳統文化硏究院 2010 石堂論叢 Vol.0 No.46

나말여초(羅末麗初)에는 선승(禪僧)들을 중심으로 입당구법이 이루어졌다. 이들 승려들은 한반도의 서남해안에서 중국의 강남을 연결하는 남방해로를 중심으로 중국에 왕래하며 조공사의 선박이나 상선을 이용하며 해상(海商)들과도 긴밀한 유대관계를 형성하였다. 이들 승려들은 대체로 서북풍이 부는 10월부터 2월 사이에 중국으로 가서 서남풍이 부는 3월에서 8월 사이에 귀국하고 있다. 나말여초의 선승들은 한반도 서남해안과 중국의 강남지역을 연결하는 남방항로와 계절풍을 이용하여 중국을 왕래하고, 중국의 강남지역을 중심으로 구법활동을 펼치고 있었던 것이다. 이들이 중국을 왕래할 때 주로 이용한 상선 및 해상들과의 관계를 통해 보면 명주(明州), 천주(泉州), 광주(廣州)로 이어지는 강남지역에는 사절의 왕래나 선승들의 왕래뿐만 아니라 상선(商船) 역시 한중 양국을 수시로 왕래하며 한중교류의 중심지로 번성하였다. 이들 해상들은 한중뿐만 아니라 일본을 왕래하며 일본의 구법승들과도 동일한 유대관계를 형성함으로써 당시 동아시아 해상교역에 일익을 담당하고 있었다. During late Silla to Early Goryeo Dynasty, seeking truth in Tang China was conducted mainly by Zen priests. The priests traveled back and forth between Korea and Chinausing the Southern sea route which connected the southwestern coast of the Korean peninsula with the region in China south of the Yangtze River, and they formed close ties with the sea merchants making use of the tributes` vessels or commercial ships. The monks usually went to China between October and February using the northwesterly wind and returned to Korea between March and August using the southwesterly wind. Thus, the Zen priests during late Silla to early Goryeo Dynasty visited China and came back to Korea using the Southern sea route which connected the southwestern coast of the Korean peninsula with the region in China south of the Yangtze River and taking advantage of the seasonal wind so as to seek truth mainly in the region in China south of the Yangtze River. To take a look at it through the commercial vessels that they used for their travel to and from China and the relationship with the sea merchants, in the region in China south of the Yangtze River including Mingzhou, Quanzhouand Guangzho, commercial vessels frequently traveled back and forth between Korea and China in addition to the travel of envoys or Zen priests to make the region prosper as the center for the exchanges between Korea and China. The sea merchants contributed to the marine trade in the then East Asia by forming equal bonds with Japanese truth-seeking priests visiting Japan in addition to China.

전처리수 처리를 통한 참외 세정효과 및 저장성에 미치는 영향

이유진(You-Jin Lee),정대성(Dae-Sung Jung) 한국원예학회 2005 한국원예학회 학술발표요지 Vol.2005 No.10

중국(1793-2008), 그 정체성을 묻는다

李有鎭(Lee You-jin) 중국어문학연구회 2008 중국어문학논집 Vol.0 No.50

This essay aims to examine the China's identity, with a focus on tracking and portraying key moments in China(1793-2008). China regarded itself as the center of the world, and in this concept, the world was China itself. In 1793, Great Britain sent Lord George Macartney on a diplomatic mission to the Qing dynasty. China considered the British embassy only as a tributary mission and treated it as such. Kowtow meaning submission before the emperor of China was required, but Macartney didn't perform 'three kneelings and nine head knockings' to maintain the dignity of the Britain. Also China had a sense of superiority, believing that China was self-sufficient and had nothing to gain by trading with the barbarians. But after China's defeat in the Opium War, the sense of superiority was shattered. The Opium War made China open against the will of the China, and people came to realize that China was no longer the best. China was forced to give up the tribute system and accept unequal treaty system. China became the arena of competition of imperialist powers. In the early years of the 20th century, with the prevailing theory of Social Darwinism, Chinese intellectuals sought to make China strong so as to survive on the battlefields of 'survival of the fittest'. At that time, the national survival was a matter of life and death to the Chinese. In this vein, the race matter of an 'Exhibition of the Races of Man' at Osaka in 1903 was very symbolic. For the Chinese students studying in Japan, it was a humiliating experience, because the exhibition initially planned to display the inferior races. Students lamented the fact that 'we Chinese' were going to be classified together with other six inferior races, finally they successfully opposed that plan. At that time when China's national survival had become a national obsession, Liang Qi-chao felt a responsibility of striving for national identity and survival. He especially put emphasis on solidarity that was required of Chinese people if China was to survive among many competitive nation-states. So Liang suggested the concepts of Daminzu zhuyi(大民族主義) and Zhonghua minzu(中華民族). In these concepts, the definition of 'Chinese' was expanded to include non-Han ethnicities as part of a comprehensive Chinese nation. After the 1911 Revolution, Sun Yat-sen intended to succeed to those concepts including eventual Sinicization, so as to unite all of the different ethnicities of China, mainly composed of the five major groups. It was mainly due to the realization that a narrow definition of Chinese would result in the loss of the territorial legacy of the Qing empire. Up to now, the PRC has asserted that China is unified under the name Zhonghua, and this is merely to continue the nationalistic discourse of the early years of the 20th century. Now China has the ability to host the international event, for example, 2008 Olympic is going to be held in Beijing, and Expo 2010 will be held in Shanghai. In the early years of the 21th century, China is emerging as a major world power. But the painful recollection of China's suffering at the hands of imperialist powers has continued to be a source of Chines nationalistic sentiment. So Chinese nationalism has the potential to become ultranationalism especially with regard to the territorial integrity. At the time of the Olympics, the Tibet crisis stimulates Chinese nationalism. The PRC has faced international blame over its crackdown on protests in Tibet against Chinese rule, and the Chinese are over-reactive toward outside pressures. They are driven by a sense of national urgency. Nevertheless we must know Chinese nationalism is fundamentally an imperialist ideology which in practice has led to the oppression of minority group such as Tibetans and the repression against domestic dissent in the name of national urgency. As Terrill points out, China has never abandoned the attitude as an empire. It looks like nation-building is still going on there.

‘중화민족 다원일체론’과 중국신화학의 만남

李有鎭(Lee You-jin) 중국어문학연구회 2012 중국어문학논집 Vol.0 No.76

This paper focuses on the relationship between ‘plurality and unity in the configuration of the Chinese nation’ and Chinese mythology. Meanwhile, it explores the Chinese identity and self-recognition in a historical context. The introduction of western concept of myth in the early 20th century led to the birth of Chinese mythology. Therefore, Greek myths have generally been regarded as the standard in Chinese mythology. Over the past 100 years in the academic circle in China, the issue of ‘historization of myth’ has been a heated topic because Chinese myths are very short, which indicates that they are not complete. Anyway, in the past 100 years, a great amount of academic achievements have been made in theoretical study in the field of Chinese mythology. Finally, the academic ideal of creating a Chinese mythological system has almost been accomplished at the end of 20th century. The myths of the minority nationalities with tremendous vigor have been regarded as a treasure house of Chinese myths in the process of myth-building, the foundations of a national identity. The Chinese mythologists assert that the all myths of 56 nationalities constitute integral resources of Chinese myths. Their perspective is based on the concept of 多元一體(plurality and unity) and 和而不同(harmony and difference) in which the emphasis is on ‘unity’ and ‘harmony’. In the 21st century, China’s rise draws the affirmation of traditional culture and makes a revolutionary change in Chinese mythology. Today, many Chinese scholars are seeing Chinese myths in terms of their own point of view. They believe that they don’t have to compare Chinese myths to Greek myths anymore because the concept of ‘mythistoty’ help them look at Chinese myths in a new perspective. In a mythistoty context, the concept of myth, as the gene of culture, is much broader than that of literature. Chinese scholars begin to explore Chinese myths and culture newly from the perspective of mythological history, and from the standpoint of Chinese culture. The re-study on the concept of myth is the academic outcome from Chinese people’s cultural consciousness concerned with overcoming orientalism, but we must guard against Chinese cultural hegemony. In this context, I think we should put a strong emphasis on ‘plurality’ and ‘difference’.