침묵

이다영 단국대학교 예술대학 문예창작전공 2001 안서문예 Vol.1 No.-

COVID-19 대규모 유행 국가에서 귀국한 격리자의 정신건강문제

이다영,이정현,현소연,김창훈,김우진,김경애,오은혜,하지현,전경선,심민영 대한신경정신의학회 2022 신경정신의학 Vol.61 No.3

Objectives This study aimed to propose an efficient mental health service plan to be implemented during epidemics by identifying the mental health characteristics of people who have returned from countries with large-scale coronavirus disease-2019 (COVID-19) outbreaks. Methods We analyzed the mental health evaluation scale data submitted by 504 quarantined people who had returned from countries hit by the COVID-19 pandemic from January to April 2020 through a government support project. Results The average age of the study group was 35.6±8.72 years, and males accounted for 67.1% and females 32.9% of the total subjects. The screening score for post-traumatic stress disorder was met by 12.1% of the subjects. Moderate to high level of depression and anxiety symptoms were seen in 10.7% and 7.0%, respectively. Also, 2.2% of the group complained of clinical level somatization symptoms, and 1.4% were evaluated as being at a high risk of suicide. The average scores and the proportion of subjects at high risk on all scales were significantly higher in female than in male. In a comparison by age, the average score of post-traumatic stress symptoms was significantly higher in subjects in their 20s than those in their 50s, and the proportion of the subjects at high risk for post-traumatic stress symptoms also showed a significant variation between age groups. However, there were no significant differences by age with respect to depression, anxiety, somatic symptoms, and suicidal tendencies. Conclusion During an epidemic, the mental health problems of people may increase, and the risk appears to be higher in female and young adults. Therefore, in addition to strong protection policies, a customized support system for each target group is required.

기계학습 기반 석유·가스의 생산량 예측 연구 동향 분석

이다영,이대모,신효진,임종세 한국에너지학회 2022 한국에너지공학회 학술발표회 Vol.2022 No.4

Therapeutic Effects of Amino Acids in Liver Diseases: Current Studies and Future Perspectives

이다영,김은희 대한암예방학회 2019 Journal of cancer prevention Vol.24 No.2

Hepatocellular carcinoma (HCC) is the most common primary malignant tumor of the liver and the third most common cause of cancer-related death worldwide. HCC is caused by infection of hepatitis B/C virus and liver dysfunctions, such as alcoholic liver disease, nonalcoholic fatty liver disease, and cirrhosis. Amino acids are organic substances containing amine and carboxylic acid functional groups. There are over 700 kinds of amino acids in nature, but only about 20 of them are used to synthesize proteins in cells. Liver is an important organ for protein synthesis, degradation and detoxification as well as amino acid metabolism. In the liver, there are abundant non-essential amino acids, such as alanine, aspartate, glutamate, glycine, and serine and essential amino acids, such as histidine and threonine. These amino acids are involved in various cellular metabolisms, the synthesis of lipids and nucleotides as well as detoxification reactions. Understanding the role of amino acids in the pathogenesis of liver and the effects of amino acid intake on liver disease can be a promising strategy for the prevention and treatment of liver disease. In this review, we describe the biochemical properties and functions of amino acids and to review how they have been applied to treatment of liver diseases. (J Cancer Prev 2019;24:72-78)

Comparative effect of silkworm powder from 3 Bombyx mori varieties on ethanol-induced gastric injury in rat model

이다영,조재민,윤선미,홍경숙,지상덕,손종곤,김은희 한국잠사학회 2017 International Journal of Industrial Entomology Vol.35 No.1

Gastric ulcer is a clinical symptom characterized by inflammation of the gastric mucosa. Stress and alcohol consumption have been identified as the major cause of gastric ulcer. However, the effects of silkworms on ethanol-induced gastric ulcer have not been studied yet. The mature silkworms that are difficult to eat have become easier to ingest due to recent technological development to make steaming and freeze-drying mature silkworm larval powder (SMSP). In this study, we investigated whether three silkworm varieties, Baekokjam, Golden-silk and Yeonnokjam could alleviate ethanol-induced gastric mucosal damage in vivo. Sprague-Dawley rats pretreated with 3 SMSPs (0.1 or 1 g/kg BW) or normal diet (AIN-76A) were exposed to absolute ethanol (3 g/kg BW, 3 h) by oral gavage. Morphological examination included ulcer index as a measurement of hemorrhages and hematoxylin and eosin staining was performed to analyze the severity of gastric ulcer. Results of macroscopic examination suggested that all 3 SMSPs pretreatment significantly protected gastric mucosa against ethanol-induced damage. Microscopic observations demonstrated significant mucosal erosion and inflammation in ethanol-treated rats, which was abrogated in rats pretreated with 3 SMSPs. In addition, pretreatment with all 3 SMSPs showed significant decreases the expression of pro-inflammatory mediators, IL-6 and cyclooxygenase-2. Among SMSP from 3 varieties of silkworm, preadministration of 1 g/kg Baekokjam SMSP showed the most effective protective effect against ethanol-induced gastric ulcer. These results suggest that Baekokjam SMSP can be a potential gastroprotective agent against ethanol-induced gastric ulcer.

축구 승부차기에서 팀이 차는 순서와 경기 승리와의 관계

이다영,석혁기,구봉진 한국스포츠학회 2011 한국스포츠학회지 Vol.9 No.4

The purpose of this study was to examine the correlation between the winning of the game and the team order in soccer penalty shoot-outs. Video and reports analyses were conducted with all penalty shoot-outs ever held in FIFA World Cup, the FIFA U-20 World Cup, the FIFA U-17 World Cup, the Men’s Olympic Football tournament, the Club World Cup, the FIFA Women’s World Cup, the FIFA U-20 Women ’s World Cup, the FIFA U-17 Women’s World Cup, the Women’s Olympic tournament, the European Championships and the Copa America(n=123shoot-outs). The winning proportion of when the team taking the first penalty was assessed by counting the number of winning games when the team to strike in the penalty shoot-outs. The results showed that the order of the team to strike prior or not is not critical factor to win the game statistically. But there is shortage of data because it doesn’t have long history since the penalty shoot-outs began in the international soccer games. So it is needed to explore further and widely.

한국·일본 초등학교 체육 교과서의 삽화 비교연구

이다영,장지훈,구봉진 한국스포츠학회 2012 한국스포츠학회지 Vol.10 No.4

트랜스코딩 작업의 분배를 활용한저전력 트랜스코딩 서버 설계 및 구현

이다영,송민석 한국차세대컴퓨팅학회 2019 한국차세대컴퓨팅학회 논문지 Vol.15 No.4

A dynamic adaptive streaming server consumes high processor power because it handles a large amount of transcoding operations at a time. For this purpose, multi-processor architecture is mandatory for which effective transcoding task distribution strategies are essential. In this paper, we present the design and implementation details of the transcoding workload distribution schemes at a 2-tier (frontend node and backend node) transcoding server. For this, we implemented four schemes: 1) allocation of transcoding tasks to appropriate back-end nodes, 2) task scheduling in the back-end node and 3) the communication between front-end and back-end nodes. Experiments were conducted to compare the estimated and the actual power consumption in a real testbed to verify the efficacy of the system. It also proved that the system can reduce the load on each node to optimize the power and time used for transcoding. 동적 적응 스트리밍 서버는 일시에 많은 양의 트랜스코딩 연산을 처리하기 때문에 높은 프로세서 전력을 소모한다. 많은 연산량을 위하여 다중 프로세서 구조가 필요하고, 이에 대한 효과적인 트랜스코딩 태스크 분배가 필요하다. 본 논문에서는 2 티어 (프론트엔드 노드 (frontend node)와 백엔드 노드 (backend node)) 트랜스코딩 서버의 전력 상한을 보장하고 스트리밍 되는 비디오의 인기도 및 품질을 고려한 트랜스코딩 서버의 설계 및 구현 방법을 제안한다. 이를 위하여 1) 각 백엔드 노드에 트랜스코딩 태스크 분배, 2) 백엔드 노드에서의 태스크 스케줄링, 3) 프론트엔드와 백엔드 노드 통신 기법들을 구현하고, 테스트베드를 구축하였다. 실제 테스트베드에서의 예상 소모 전력과 실제 소모 전력을 비교하는 실험을 진행함으로써 본 시스템의 효용성을 확인했다. 또한 본 시스템이 각 노드의 부하를 감소시킴으로써 트랜스코딩에 사용되는 전력 및 시간 최적화가 가능함을 보였다.

Preparation and EDLC performance of activated carbon fibers by physicochemical activation

이다영,정진영,장진석,이영석 한국공업화학회 2014 한국공업화학회 연구논문 초록집 Vol.2014 No.1

In this study, we prepared activated carbon fibers with micro/mesopore to investigate effect of mesopore on capacitance. Physical and chemical activation were carried out to prepare micro/mesoporous carbon fibers. Mesopore of carbon fibers derived from silica template and micropore was developed using KOH activation. The textural properties of prepared samples were assessed BET specific surface area, and pore size distribution. Also, the electrochemical properties of activated carbon fibers were evaluated using cyclic voltammetry. It was observed that the mesopore volume of prepared samples was increased as increasing of silica template amount and specific capacitances also improved according to increase mesopore volume. It is thought that mesopore of activated carbon fibers were effective to enhance EDLC performance.

전기화학적 에칭 프로세스에 의한 알루미늄 표면 변화

이다영,허범기,최진섭 한국표면공학회 2018 한국표면공학회 학술발표회 초록집 Vol.2018 No.11