• 한국포장학회지
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• 제18권1_2호
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• pp.39-44
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• 2012

표면살균처리(초음파수, 염소수, 전해수) 후 PE 필름으로 진공포장 되어진 슬라이스 더덕의 저장 중 효과를 살펴보았다. 저장 초기에는 대조구에 비하여 표면살균처리된 신선편이 더덕은 총균수와 대장균군이 10배 이상 적게 측정되었다. 저장 20일 후 초음파수 처리구는 미생물뿐만 아니라 중량감모율, 부패율, 조직감과 표면색택이 대조구와 차이를 보이지 않을 정도로 품질이 저하되었다. Video microscope system을 이용하여 슬라이스더덕의 표면을 측정하였을 때 염소수와 전해수 처리구는 저장 10일까지는 초기와 큰 차이를 보이지 않았다. 그러나 저장 20일 후에는 슬라이스더덕 표면을 전해수 처리하여 PE필름으로 진공포장한 것이 조직감 뿐만 아니라 표면색의 갈변이 가장 적음에 따라, 저장 중 품질 유지에 가장 효과적인 것으로 나타났다.

• 한국미생물학회:학술대회논문집
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• 한국미생물학회 2000년도 International Meeting 2000
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• pp.23-36
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• 2000

Japanese encephalitis virus (JEV) is the causative agent of a mosquito-borne encephalitis and is transmitted to human via persistently infected mosquito vectors. Although the virus is known to cause only acute infection, there were reports that showed neurological sequelae, latent infection in peripheral mononuclear cells, and recurrence of the disease after acute encephalitis. Innate resistance of certain cell lines, abnormal SN1 expression of the virus, and anti-apoptotic effect of cullular bcl-2 have been suggested as probable causes of JEV persistence even in the absence of defective interfering (DI) particles. Although possible involvement of DI particles in JEV persistence was suggested, neither has a direct evidence for DI presence nor its molecular characterization been made. Two questions asked in this study are whether the DI virus plays any role in JEV persistent infection if it is associated with and what type of change(s) can be made in persistently infected cells to avoid apoptosis even with the continuous virus replication, DI-free standard stock of JEV was infected in BHK-21, Vero, and SW13 cells and serial high multiplicity passages were performed in order to generate DI particles. There different-sized DI RNA species which were defective in both structural and nonstructural protein coding genes. Rescued ORFs of the DI genome maintained in-frame and the presence of replicative intermediate or replicative form RNA of the DI particles confirmed their replication competence. On the other hand, several clones with JEV persistent infection were established from the cells survived acute infections during the passages. Timing of the DI virus generation during the passages seemed coincide to the appearance of persistently infected cells. The DI RNAs were identified in most of persistently infected cells and were observed throughout the cell maintenance. One of the cloned cell line maintained the viral persistence without DI RNA coreplication. The cells with viral persistence released the reduced but continuous infectious JEV particle for up to 9 months and were refractory to homologous virus superinfection but not to heterologous challenges. Unlike the cells with acute infection these cells were devoid of characteristic DNA fragmentation and JEV-induced apoptosis with or without homologous superinfection. Therefore, the DI RNA generated during JEV undiluted serial passage on mammalian cells was shown to be biologically active and it seemed to be responsible, at least in part, for the establishment and maintenance of the JEV persistence in mammalian cells. Viral persistence without DI RNA coreplication, as in one of the cell clones, supports that JEV persistent infection could be maintained with or without the presence of DI particles. In addition, the fact that the cells with JEV persistence were resistant against homologous virus superinfection, but not against heterologous one, suggests that different viruses have their own and independent pathway for cytopathogenesis even if viral cytopathic effect could be converged to an apoptosis after all.

• 한국응용과학기술학회지
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• 제36권3호
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• pp.804-812
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• 2019

The purpose of this study was to investigate the effects of different types of exercise training on neurodegeneration and cognitive function in mice with impaired glucose tolerance (IGT). Thirty-six male C57BL/6 mice were randomly assigned to the control (CO, n = 9) and impaired glucose tolerance (IGT, n = 27) groups. The IGT group consumed 45% high fat diet for 4 weeks and received 40 mg/kg of streptozotocin twice in the lower abdomen to induce IGT. After the IGT induction period, the IGT group was subdivided into IGT + sedentary (IGT, n = 9), IGT + endurance exercise (IGTE, n = 9), and IGT + resistance exercise (IGTR, n = 9). The IGTE and IGTR groups performed treadmill and ladder climbing exercises 5 times per week for 8 weeks, respectively. Fasting glucose and glycated hemoglobin (HbA1c) levels were significantly higher in IGT group than in CO, IGTE, and IGTR groups (p < 0.05). HOMA-IR was significantly higher in IGT group than CO group (p < 0.05). Hippocampal catalase (CAT) was significantly lower in IGT group than in CO group (p < 0.05), while beta-amyloid ($A{\beta}$) was significantly higher in IGT group than in CO group (p < 0.05). Hippocampal tau was significantly higher in IGT group than in CO, IGTE, and IGTR groups (p < 0.05). The Y-maze test performance for cognitive function was significantly lower in IGT group than in CO, IGTE, and IGTR groups (p <0.05). These results suggest that IGT induces neurodegeneration and negatively affects cognitive function, while regular exercise may be effective in alleviating neurodegeneration and cognitive decline regardless of exercise type.

• 한국인쇄학회지
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• 제30권3호
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• pp.1-11
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• 2012

According as the latest printing technology is converted from analogue to digital, life cycle of a printing technology is shortened and the existent printing companies were faced always in a new technology. Specially, way of foreign countries export opened because globalization of printing market is accelerated. But, printing buyers of advanced nation require standard printing process control. fect at product process step. Emphasized in IPA technical conference for past several years tendency about graphic art color proofing and technical analysis and comparison going through Color Proofing RoundUP. These researchers have developed a color management technology. A specially developed printing technology and reference characterization data brought certain high quality elevation in a graphic art proofing technology. When excessive GCR method application supervise printing, width of color conversion necks by requiring a lot of color conversions than proofing. But, these point is lacking relatively than a lot of effects that GCR gives. Therefore, correct interests of GCR algorithm and verification step to forecast beforehand result about actuality application are positively necessary. Therefore, this research forced into input file which is applied with different levels from input to print for printing optimization that consider standard printing with eco-friendly by method to solve these problem. And experimented using manuscript who GCR level is applied as is different in each field, and analyzed the result. Also, it is verification method by step to last printing from input file that solve been the various quality who generate in actuality field through these analysis result. ICC color management confirmed printing optimization process applying GCR algorithm improved to base.

• 한국인쇄학회지
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• 제30권3호
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• pp.45-56
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• 2012

Printing technology is accepted by appropriate technology that smart phones, tablet PC, display(LCD, OLED, etc.) precision recently in the electronics industry, the market grows, this process in the ongoing efforts to improve competitiveness through the development of innovative technologies. So printed electronics appeared by new concept. This technology development is applied on electronic components and circuits for the simplification of the production process and reduce processing costs. Low-temperature process making possible for widening, slimmer, lighter, and more flexible, plastic substrates, such as(flexible) easily by forming a thin film on a substrate has been studied. In the past, the formation of the electrode used a screen printing method. But the screen printing method is formation of fine patterns, high-speed printing, mass production is difficult. The roll-to-roll printing method as an alternative to screen printing to produce electronic devices by printing techniques that were used traditionally in the latest technology and processing techniques applied to precision control are very economical to implement fine-line printing equipment has been evaluated as. In order to function as electronic devices, especially the dozens of existing micro-level of non-dot print fine line printing is required, the line should not break at all, because according to the specifications required to fit the ink transfer conditions should be established. In this study of roll-to-roll printing conductive paste suitable for gravure offset printing by developing Ag paste for forming fine patterns to study the basic physical properties with the aim of this study were to.

• 한국인쇄학회지
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• 제26권2호
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• pp.1-13
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• 2008

Printed mottle of coated paper is one of the most common phenomenon and the most difficult problem in offset printing. Offset printing is processed mainly processed by the attractive properties between water and oil, so all inks for off-printing must work with dampening solution(water). It may cause the emulsion on the printing nip from the printing pressure. This study aimed to investigate the effect of emulsified inks on print mottle from emulsified cyan ink by force with each different IP A contents. We measured the print mottle by densitometer and image analysis method. The emulsified inks also give effect to now properties of inks and it caused more ink transfer rate, however, it caused low density of inks. Moreover the emulsified inks were spreaded to around of dots and cause the thinning density on the non-printing area like print mottle. The results showed that the emulsified inks also cause scumming on the printing result with little mistake of adjusting dampening solution and mostly decreasing dot reproduction. So we could find out the obvious effect of emulsified inks to print mottle.

• 대한지역사회영양학회지
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• 제10권6호
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• pp.825-834
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• 2005

This study was to investigate the effects of the body fat $\%$ on life styles and self-recognition of health conditions in hotel culinary college students. This survey was conducted using the questionnaires for 144 students (110 males, 34 female) in Hongseung-located college. More exercise time and less frequency of alcoholic beverage they intake, lowered their body fat $\%$. Males did stronger exercise and had lower body fat $\%$ than females. The stronger exercise they did, the lower body fat $\%$ they had, and were more satisfied with their present weight. Since they had more alcoholic beverage, they smoked more. Less smoking, more abdominal obesity they were. The less satisfaction with their body weights, the higher body fat $\%$ they had. The obese less were content with their weights. More recognition of obese shape, higher body fat $\%$ they had and abdominal obesity they were. Female had higher body fat $\%$ and were more abdominal obesity, did weak action, less smoke and weak exercise than male. Higher body fat $\%$ they had, more abdominal obesity they were. The more part time jobs they had, they did not smoke or were not satisfied with their body weights. Female students in culinary arts division had higher body fat $\%$ and were dissatisfied with their body weights and did less exercise or subnormal exercises. (Korean J Communty Nutrition 10(6) : $825\∼834$, 2005)

• 한국융합학회논문지
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• 제12권3호
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• pp.151-164
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• 2021

본 연구는 예술대학 교육과정 중 나타나는 갈등관계와 자기검열 행동동기의 원인이 되는 귀인성향을 검증하고자 하였다. 국내외 문헌 연구와 심층면담을 실시하여 설문지와 연구모형을 개발하였으며, 서울, 충남 소재 2개 대학교 예술학과 재학생 158명을 대상으로 설문을 실시하였다. 분석은 다중 회귀분석을 실행하여 유의성을 확인하였고 유의하게 나타난 요인에 대해 매개효과 분석하였다. 분석결과 자기검열과 개인간 갈등관계에 대한 외적귀인 성향이 부분 매개효과를 가지는 것으로 나타났다. 즉, 예술대학생은 교육환경 속 갈등의 정도가 높아질수록 문제의 원인을 타인, 과제 난이도 등의 외적특성으로 지각하고 좌절감, 수치심의 정서가 자기검열의 행동동기가 된다는 결론을 확인하였다. 예술교육은 개인의 창의성을 기초로 하는 것으로 외부 억압과 자기검열은 자유로운 표현을 제한하는 학습장애가 될 수 있다. 따라서 교육과정 속 표현의 제한을 두지 않고 역량을 발휘하는 교육과정과 자유로운 창작환경을 제공하는 것으로 예술 대학생의 자기검열을 줄여나갈 필요가 있다.

• 한국컴퓨터정보학회논문지
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• 제27권9호
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• pp.267-277
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• 2022

최근 대학에선 '컴퓨팅사고'를 포함해 '프로그래밍, 데이터분석 및 인공지능'에 이르기까지 SW 기초교육의 주제가 다양화되는 추세이다. SW 기초과목의 다양화는 단순히 배우는 내용이 다름이 아닌 과목별 교육 목표 및 교육 효과의 차별화도 기대할 수 있다. 본 논문은 A 대학 인문대학생을 위해 운영 중인 '컴퓨팅사고'와 '데이터분석기초'의 두 SW 기초과목의 교육 목표에 따른 교육효과를 비교 분석하는 사례연구이다. 두 과목 모두 '컴퓨팅사고 기반 SW 융복합 역량 배양'이란 공통 교육 목표에 따라 '컴퓨팅사고 효능감' 지표들은 유의미하게 상승하였고, 기초교육이 목표인 '컴퓨팅사고'는 주로 '일상 문제' 해결에, 전공심화교육이 목표인 '데이터분석기초'는 '일상 문제' 와 함께 '전공 문제'의 해결 방법에도 자신감이 상승하는 교육 효과의 차이를 확인할 수 있었다.

• 한국동물학회지
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• 제22권3호
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• pp.125-133
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• 1979

저자들이 1969年 2月과 12月, 1971年 2月, 1976年 2月 그리고 1978年 11月에 濟州島의 西歸浦에서 採集한 海綿類를 同定한 結果 3新種 즉 코리스티 다해면 目, 죠디아해면 科에 Erylus koreanus, 경해면, 目, 테티아해면 科에 Tethya koreana, 그리고 축해면 目, 털해면 科에 Raspailia koreana로 命名하고 이들을 記錄報告한다. 完模式標本은 梨大 自然史博物館에, 副模式標本은 梨大 生物學科에 보관하고 있다.