안전성 향상을 위해 감마선 조사한 시판 플레인 요구르트의 품질 특성

김현주,송현파,함준상,이주운,김기혁,조철훈,Kim, Hyun-Joo,Song, Hyun-Pa,Ham, Jun-Sang,Lee, Ju-Woon,Kim, Kee-Hyuk,Jo, Cheor-Un 한국축산식품학회 2008 한국축산식품학회지 Vol.28 No.5

To develop a yogurt for sensitive consumer such as infants, children or immuno-compromised patients using gamma irradiation, the effects of gamma irradiation on the microbiological, chemical, and sensory quality in a commercial plain yogurt were investigated. No viable coliform bacteria were detected in the sample and approximately a 6 decimal reduction was achieved in the number of total aerobic bacteria by irradiation at 5 kGy. The initial population of lactic acid bacteria observed in the commercial plain yogurt was 8.95 log CFU/g. Gamma irradiation significantly reduced the initial microbial level to 6.47 and 2.85 log CFU/g after irradiation at 1 and 3 kGy, respectively (p<0.05). However, irradiation dose up to 5 kGy could not completely eliminate the lactic acid bacteria in commercial plain yogurt. pH, color, lactose and lactic acid content, and sensory quality were not affected by irradiation treatment and storage. Our results suggest that irradiation can improve the microbial quality of commercial plain yogurt without impairing the physicochemical and sensory quality.

신채호와 노신 소설의 노예성 비판에 대한 비교 연구

김현주(Kim, Hyun-Ju) 한국어문학회 2014 語文學 Vol.0 No.125

The object of this thesis was Sin, Chae-Ho"s Fierce Battle of Dragon to Dragon and Lu Xun"s A lunatic’s diary and investigated the similarity and difference of the criticism of slavery and the aspect of its overcome. Two works criticize the cannibalistic society over thousands years and the enslaved men therein. The works reject the romanticism and ideality of revolution through establishment of characters like "elder and younger brother" and depict the change of reality through awareness of the public. Miri and dragon, and the lunatic and elder brother is an inseparable entity, a mirror that reflects each other, that lies in the environment in which conflict and enmity lasts holding two inner values. This establishment of character has the effect of reflecting the inner self-contradiction by nullifying the border between the good and the evil. Sin, Chae-Ho expands the epic with a radical revolution, while Lu Xun dreams of reformation by the way of infiltrating into the logics of reality. This difference might result from the context the two countries were in, colony and semi-colony. The fact, that Lu Xun was in the situation to be able to intervene deeply in the reality of China, while Sin, Chae-Ho was in the social status as a refugee difficult to contact directly with domestic people, might be a reason that makes a difference between two writers" narrative technique and imbodiment of character. The issue of slavery the two writers explored can not be seen as a problem of only feudalistic and imperial age. Under the structure of pressure, human being can anytime be recomposed as new slavery to settle down in the cannibalistic structure. The nowness and the meaning of this work can be found in that the enslavement is given rebirth beyond the age.

감마선 조사에 의한 바닐라 아이스크림의 물리화학적 및 관능적 특성 평가

김현주,한인준,최종일,송범석,김재훈,함준상,이완규,육홍선,신미혜,변명우,이주운,Kim, Hyun-Joo,Han, In-Jun,Choi, Jong-Il,Song, Beom-Seok,Kim, Jae-Hun,Ham, Jun-Sang,Lee, Wan-Gyu,Yook, Hong-Sun,Shin, Mee-Hye,Byun, Myung-Woo,Lee, Ju-Woon 한국축산식품학회 2008 한국축산식품학회지 Vol.28 No.1

This study evaluated the physicochemical and sensory characteristics of vanilla ice cream treated with gamma irradiation. The general composition of the vanilla ice cream used for the study was 45.4-53.3% moisture, 5.5-5.9% fat and 3.9-4.1% protein, and these values did not change following gamma irradiation. The Hunter L, a and b values were slightly decreased following gamma irradiation. The fatty acid composition of the ice cream included caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid and stearic acid, and there was no detectable change following irradiation. There was no significant difference in TBARS (2-thiobarbituric acid reactive substances) values between non-irradiated and irradiated samples at a dose of 3 kGy or less (p<0.05). Sensory evaluation indicated that gamma-irradiated vanilla ice cream did not show any difference in color relative to non-irradiated ice cream. However, gamma irradiation did affect the flavor, taste and overall acceptability of ice cream at doses above 3 kGy. These results indicate that gamma irradiation at 3 kGy is an effective treatment for sustaining the physicochemical characteristics of vanilla ice cream with minimal changes in sensory characteristics, though further studies should be carried out to reduce the deterioration of sensory qualities induced by gamma irradiation.

비우식성 치경부 병소와 5급 와동 수복물이 치주조직에 미치는 영향

김현주,김성조,최점일,이주연,Kim, Hyun-Joo,Kim, Seong-Jo,Choi, Jeom-Il,Lee, Ju-Youn 대한치주과학회 2009 Journal of Periodontal & Implant Science Vol.39 No.1

Purpose: The non-carious cervical lesion(NCCL) is a loss of tooth structure at the neck of affected teeth that is unrelated to tooth caries. The reported prevalence of NCCL varies from 5% to 85%. Prevalence and severity of lesions have been found to increase with age. They are becoming more significant as people live longer and become more aware of the importance of oral health. The purposes of this study were first, to examine the periodontal conditions associated with NCCL, and second, to investigate the clinical effects of class V restorations of NCCL on periodontal tissues. Materials and methods: The sample size was 982 teeth of 50 subjects(25 male, mean age $52{\pm}7$) who were seen at the Department of Periodontology, Pusan National University Hospital. At the baseline examination, clinical periodontal parameters were measured. After the initial examination, 24 patients who were absent from hypersensitivity were selected. The teeth with NCCL were randomly divided into the test and control groups. The teeth in the test group were restored with flowable resin; the control teeth were not restored. Six months later, the clinical examinations were repeated. The data were analyzed using the SPSS program. Results: The results were as follows: 1) NCCL occurred on 45.8% of examined teeth. The percentage of affected teeth was higher in maxillary and premolar teeth. 2) The shallow saucer type was the most common. 3) Teeth with NCCL had more gingival recession, lower attachment level, and higher incidences of bleeding on probing(BOP) and plaque than NCCL-free teeth. 4) Six months later, gingival recession, attachment level, the percentages of BOP and plaque in the test group were lower than in the control group(p<0.05). Conclusion: NCCLs were more found in maxillary teeth, especially in premolar teeth. The results suggest that the restoration of NCCL could affect some periodontal parameters favorably.

감마선 조사와 푸코이단/라미나린 병용처리가 돈육 패티의 품질에 미치는 영향

김현주,최종일,박진규,송범석,김재훈,윤요한,김천제,신미혜,변명우,이주운,Kim, Hyun-Joo,Choi, Jong-Il,Park, Jin-Gyu,Song, Beom-Seok,Kim, Jae-Hun,Yoon, Yo-Han,Kim, Cheon-Jei,Shin, Mee-Hye,Byun, Myung-Woo,Lee, Ju-Woon 한국축산식품학회 2009 한국축산식품학회지 Vol.29 No.1

The objective of this study was investigated to apply the fucoidan and laminarin extract from low-grade Undaria pinnatifida to real food product, a pork patty. Pork patties added with fucoidan and laminarin showed lower lipid oxidation and the inhibition against lipid oxidation was shown to be dependent on the irradiation doses. The Hunter color values of pork patty added with fucoidan increased significantly with an increase of irradiation dose. The hardness profiles of the patties with fucoidan and laminarin was decreased, but the amount of water in the patties was increased. Also, the combination of gamma irradiation and addition of fucoidan and laminarin was shown to be effective for the microbiological control. These results suggested that gamma irradiation and fucoidan and laminarin treatment showed the positive effect on microbial stability and quality of the pork patty.

영양플러스 사업의 비용편익분석 - 대전 동구보건소를 중심으로 -

김현주,김성한,Kim, Hyun Ju,Kim, Sung Han 한국식품영양학회 2015 韓國食品營養學會誌 Vol.28 No.4

Although the NutriPlus program has shown considerable evidence of enhancing users' nutritional status, the budget does not cover all eligible mothers and children. This study aimed to conduct a cost-benefit analysis of the NutriPlus program to assess its economic efficiency. 53 families with 79 users in the NutriPlus program at Daejeon Dong-gu Health Center participated in this study with informed consent. The costs and benefits were estimated from both the administrator's and users' perspectives. We converted the time cost into Korean currency based on the minimum wage in 2014. The value of nutrition education and service (B2), estimated by contingency valuation method (CVM), was counted as an economic benefit. 6 families (11.3%) were recipients of national medical care and 22 families (41.5%) paid 10% of the food package cost by themselves. The total cost was \7,450,167 and the total benefit was \12,402,239. The budget for the health center (C1+C2+C3+C4) was \5,984,381 a month. Time and transportation cost for receiving nutrition education (C6) differed significantly according to the economic status of families. Household food consumption increase (C4-B4) was 40,379 in the poverty group, which was four times more than in the other groups. The net benefit (B-C) was \4,852,172 and the B/C ratio was 1.66. Therefore, the NutriPlus program is beneficial in the economic aspect as well as in the nutritional aspect. If the enhancement of nutritional status was also considered, the total benefit would be even higher. These results confirm the legitimacy of a secure budget for the NutriPlus program. And we suggest expanding its budget to cover more eligible individuals to improve people's health and welfare.

라인스캔 카메라를 이용한 3차원 정밀 측정

김현주,윤두현,김학일,Kim, Hyun-Ju,Yoon, Doo-Hyun,Kim, Hak-Il 한국광학회 2008 한국광학회지 Vol.19 No.5

본 논문에서는 라인스캔 카메라를 통해 모든 영역의 영상을 획득하는 연구를 제안한다. 이 방법은 기존의 면적 카메라를 이용했던 방법에 비해 투영격자의 이동 횟수를 획기적으로 줄일 수 있으며, 그로 인해 측정시간이 매우 빠르고 측정정밀도도 뛰어난 장점을 가진다. 본 논문의 스캐닝 모아레 측정 방법은 넓은 영역의 3차원 형상 정보를 얻는데 매우 유익하며, 대면적의 대상물 측정 시 일반적으로 사용하는 stitching 기법을 사용할 필요가 없으므로 한번에 전 영역의 3차원 형상의 복원이 가능하여 보다 빠른 속도로 3차원 형상 정보를 얻을 수 있는 효과가 있다. 또한, 투영격자 하나만을 이용한 영사식 모아레 방식을 이용하여 작은 높이 단차를 갖는 물체의 3차원 형상을 복원하고 그 높이를 용이하게 측정 할 수 있다. 본 연구는 양산환경(Mass production)의 웨이퍼 범프 높이 검사 및 FC-CSP나 FC-BGA 범프 높이 검사 등에 활용 할 수 있으며, 실험을 통해 기존의 방법에 비해 투영격자의 이동횟수 및 측정 속도가 향상되었음을 확인하였다. This paper presents the Projection Moire method using a line scan camera. The high resolution feature of a line scan camera makes it possible to scan an image quickly, thus enabling a much quicker 3D profile. This method uses a high resolution line scan camera making it possible to scan an image at high speed simultaneously measuring the 3D profile of a large FOV. When using a high resolution scan camera, a full FOV is scanned, thus requiring just one movement of a projection grating. As a result, the number of grating movements is reduced drastically. The end result is a faster and more accurate 3D measurement. Moving the grating too quickly causes vibration in the imaging system, which will normally be required to apply a stitching technique when using an area scan camera. However the technique is not required when using a line scan camera. Compared with the previous techniques, it has the advantages of simple hardware without moving mechanical parts - single exposure for obtaining three-dimensional information. A method using a high resolution line scan camera can be used in mass production to measure the bump height of wafers or the bump height of package substrates.

안전정보통합관리시스템을 활용한 도시의 안전관리

김현주,김미선,Kim, Hyeon-Ju,Kim, Mi-Seon 한국방재협회 2014 방재저널 Vol.16 No.3

Additional use of autogenous periosteal barrier membrane combined with regenerative therapy in the interproximal intrabony defects: case series

김현주,김형민,이주연,Kim, Hyun-Joo,Kim, Hyung-min,Lee, Ju-Youn Korean Academy of Stomatognathic Function and Occl 2017 구강회복응용과학지 Vol.33 No.3

치간부 골내낭의 치주재생치료는 수술 후 발생할 수 있는 비심미성 때문에 치과의사에게 힘든 과제이다. 본 연구에서는 이러한 문제점을 해결하기 위해 치간부 골내낭의 bovine bone mineral과 enamel matrix derivative (EMD)를 이용한 재생 수술에 골막을 포함한 결합조직 이식을 동반한 임상증례를 소개하고자 한다. 임상적 및 방사선학적인 검사는 술 전과 수술 6개월 이후 시행하였다. 모든 임상 지표들이 개선되었고, 방사선학적 검사에서 골내낭이 감소함을 확인할 수 있었다. 또한, 부가적인 결합조직이식을 통해 치간부 연조직의 증대 및 형태 개선으로 인한 심미성이 증진되는 효과도 확인할 수 있었다. Regenerative therapy in an interproximal intrabony defect is a challenge due to unaesthetic appearance after surgery. In this article, we introduce a case series of additional use of autogenous periosteal barrier membrane combined with bovine bone mineral and enamel matrix derivative (EMD) in interproximal periodontal intrabony defects to overcome an aforementioned shortcoming. During the periodontal regenerative surgery, autogenous periosteal membrane was additionally adopted besides xenograft material and EMD. Clinical and radiographic examinations were performed before surgery and 6 months after surgical treatment. All clinical parameters were improved and the intrabony defects were resolved on the radiography 6 months after surgery. Moreover, soft tissue esthetics such as the contour of interdental papilla was better than that of conventional regenerative therapy. Periodontal regenerative therapy using several graft materials and bioactive materials was effective in the treatment of periodontal intrabony defect. Moreover, using of autogenous periosteal barrier membrane combined with xenograft and EMD has additional effect for the treatment of an interproximal intrabony defect in terms of augmentation of interdental soft tissue volume.

도시철도 역사 유니버설디자인 적용 및 효과 분석: 수서역을 대상으로

김현주,김진희,김장욱,김진경,Kim, Hyeon-Ju,Kim, Jin-Hui,Kim, Jang-Uk,Kim, Jin-Gyeong 대한교통학회 2016 교통 기술과 정책 Vol.13 No.6