• 한국식품위생안전성학회지
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• 제35권5호
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• pp.419-429
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• 2020

식품 매개 병원균에 의한 문제는 식품산업뿐 아니라 세계 공공 보건에서도 문제가 된다. 최근 몇 년 간, 발효기술은 식품 내 병원성 미생물의 불활성화 및 이를 조절하기 위한 값 싸고 안전한 방법이라는 것이 밝혀졌다. 유산균 발효는 병원성 세균 및 바이러스에 대해 유의적인 항균효과를 갖는 과학적 증거를 보였다. 유기산, 박테리오신 및 과산화수소와 같은 유산균 대사체는 식품 매개 병원균에 대해 악영향을 미치고 이는 이들의 저해작용으로 이어진다. 이 화합물들은 물리적 결함만을 야기하는 것이 아니라 병원균의 유전자 발현에 대해서도 유의적인 저해 효과를 나타낸다. 게다가, 식품 내 유산균의 존재는 병원균에 대해 영양적인 경쟁을 제공하며 모든 요인이 그 성장을 억제한다. 본 연구는 유산균의 항균력, 분자생물학적 메커니즘 및 식품 매개 병원균의 불활성화를 위한 응용에 대하여 우리의 현 지식을 검토한다.

• 디지털산업정보학회논문지
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• 제16권1호
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• pp.41-54
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• 2020

In this paper, it will study various problems such as personal information infringement from when using various useful Apps in the Smartphone environment. It also researched the vulnerabilities Mobile Apps and the risks of personal information leakage when using Smartphone information to decrease threat and find solution. In the second chapter, it will check the existing Mobile App related Apps. In the third chapter, it will check the threats and major factors that caused by the leakage of personal information which related to the app. Then it will suggest solution and end with conclusion. This paper also looked at various problems that caused by illegal adverse effect from illegal personal information collection. Then it researched and made suggestion to make consideration on safety of personal information and privacy infringement that threat to personal information For safety of mobile banking, it proposed a safety method to separate and manage the code which has the core logic which required to run the App. For safety of direction App, when running the direction App, even if the information is collected, location information for unauthorized accessed will encrypt and store in DB, so that access to personal information is difficult. For delivery App environment, by using the national deliver order call center's representative phone to receive a telephone order then, the customer information is delivered to the branch office when it receive order and it will automatically delete information from the server when the delivery is completed by improving DB server of order. For the smart work app environment, the security solution operates automatically by separating and make independent private and work areas. Then it will suggest initialization for company's confidential business information and personal information to safe from danger even if loss.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제13권12호
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• pp.5990-6008
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• 2019

Recognizing license plate from its traffic camera captured images is one of the most important aspects in many traffic management systems. Despite many sophisticated license plate recognition related algorithms available online, license plate recognition is still a hot research issue because license plates in each country all round the world lack of uniform format and their camera captured images are often affected by multiple adverse factors, such as low resolution, poor illumination effects, installation problem etc. A novel method is proposed in this paper to solve the inclination problem of license plates in their camera captured images through four parts: Firstly, special edge pixels of license plate are chosen to represent main information of license plates. Secondly, least square methods are used to compute the inclined angle of license plates. Then, coordinate rotation methods are used to rotate the license plate. At last, bilinear interpolation methods are used to improve the performance of license plate rotation. Several experimental results demonstrated that our proposed method can solve the inclination problem about license plate in visual aspect and can improve the recognition rate when used as the image preprocessing method.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제29권3호
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• pp.157-162
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• 2003

Background : The surgical removal of impacted mandibular third molar can result in considerable pain, swelling, and dysfunction that patient are incapable of work for several days. Factors contributing to post operative swelling, trismus and pain are complex. There is no question but that the procedure of surgically removing an impacted mandibular third molar is inherently a traumatic one and that some sequelae related to the inflammation response are expected. Meticulous surgical technique will minimize the sequelae of inflammation but will not prevent them. In an effort to minimize these sequelae the use of steroid was instituted. Patients and Methods : Present study was to investigate the effect of one preoperative steroid injection in the masseter muscle to the patients(male 9, female 11) who needed prophylactic removal of bilateral, symmetrical, impacted wisdom teeth in the mandible on the complaint like swelling, trismus and pain. through Double-Blind test. Results : 1. After 24 hours investigation, preoperative steroid injection had significantly reduced swelling with 39% and trismus with 57.5%. 2. $7^{th}$ post operative day investigation, reduced swelling and trismus had shown, however, not significant. 3. There wasn't major difference from the group who took preve-ntive steroid in the visual analogue scale, the first analgesic intake time and the pain period. 4. There wasn't any adverse reaction of steroid for 20 patient From the above result, If the patients are not contraindication to steroid and pronounced post operative reaction can be expected the use of steroid to the surgical removal of impacted mandibular third molar is recommended.

• 디지털융복합연구
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• 제14권8호
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• pp.487-496
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• 2016

본 연구의 목적은 교육부의 대학평가에 의한 입학정원 감축과 체육계열학과의 취업교육에 관련된 연구사례의 부족 등의 이유로 전문적인 체육역량을 갖춘 융합인재 양성 및 체육전공의 입지를 확고히 할 수 있도록 체육계열학과의 취업준비 현황을 심층적으로 탐색하고 진로교육 방향을 제시하는데 있다. 체육계열 전공자들의 인식 수준에 따른 하위 요인과의 관계를 분석하기 위해 다변량분산분석과 대응일치분석 방법을 사용하였다. 연구결과를 통해 얻어진 결과는 다음과 같다. 첫째, 체육계열 대학생들의 학년별 적성과 소질을 고려하여 진로교육을 사전에 실시하는 것이 중요한 것으로 나타났다. 둘째, 진로를 준비하는데 있어서 취업장벽의 문제를 조속히 완화시켜주는 것이 중요한 것으로 나타났다. 셋째, 체육계열 전공과 관련된 취업직종의 확대와 기회의 제공에 다 같이 노력하는 것이 중요한 것으로 나타났다.

• Archives of Pharmacal Research
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• 제28권2호
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• pp.195-202
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• 2005

Free radicals and reactive oxygen species (ROS) caused by UV exposure or other environmental factors are critical players in cellular damage and aging. In order to develop a new antiphotoaging agent, this work focused on the antioxidant effects of the extract of tinged autumnal leaves of Acer palmatum. One compound was isolated from an ethyl acetate soluble fraction of the A. palmatum extract using silica gel column chromatography. The chemical structure was identified as apigenin-8-C-beta-D-glucopyranoside, more commonly known as vitexin, by spectral analysis including LC-MS, FT-IR, UV, $^{1}H-$, and $^{13}C-NMR$. The biological activities of vitexin were investigated for the potential application of its anti-aging effects in the cosmetic field. Vitexin inhibited superoxide radicals by about $70\%$ at a concentration of $100\;{\mu}g/mL$ and 1,1-diphenyl-2-picrylhydrazyl (DPPH) radicals by about $60\%$ at a concentration of $100\;{\mu}g/mL$. Intracellular ROS scavenging activity was indicated by increases in dichlorofluorescein (DCF) fluorescence upon exposure to UVB $20\;mJ/cm^2$ in cultured human dermal fibroblasts (HDFs) after the treatment of vitexin. The results show that oxidation of 5-(6-)chloromethyl-2',7'-dichlo-rodihydrofluorescein diacetate ($CM-H_{2}DCFDA$) is inhibited by vitexin effectively and that vitexin has a potent free radical scavenging activity in UVB-irradiated HDFs. In ROS imaging using a confocal microscope we visualized DCF fluorescence in HDFs directly. In conclusion, our findings suggest that vitexin can be effectively used for the prevention of UV-induced adverse skin reactions such as free radical production and skin cell damage.

• 디지털융복합연구
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• 제15권12호
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• pp.635-645
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• 2017

본 연구는 남자 청소년의 섭식문제와 우울, 부모 공감의 관계를 알아보고 청소년의 섭식문제와 우울의 관계에서 부모 공감의 조절효과를 알아보았다. 이를 위해 K지역 소재 중, 고등학교 남학생 246명에 대해 위계적 회귀분석을 실시하였다. 그 결과 섭식문제와 우울간의 관계는 부모 공감에 의해 조절되는 것으로 나타났다. 부모 공감의 하위요인들의 조절효과를 분석한 결과 아버지의 경우 정서 지각, 냉담정서반응, 과민정서반응이 조절효과를 보였고, 어머니의 경우 정서지각, 관점수용, 냉담정서반응, 과민정서반응이 섭식문제와 우울 간의 관계를 조절하는 것으로 나타났다. 이 연구는 청소년이 지각하는 부모의 공감이 우울과 섭식문제의 관계에서 부정적 영향을 완화시킬 수 있는 조절변인임을 확인하였다는데 의의가 있다.

• 대한가정학회지
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• 제46권10호
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• pp.133-146
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• 2008

This study investgates the factors influencing the levels of consumer satisfaction and life satisfaction of resident foreigners in Korea. The data were collected through a structured self-administered survey and 545 foreigners who lived in Korea for more than 3 months, with age over 20 participated as respondents. A research framework was formulated based on the resource constraint hypothesis and the study investigated the impact of information resource(human, media and internet information source) and consumer resource(monthly income, language ability and consumer proficiency) on the levels of consumer satisfaction and life satisfaction. The results from data analysis can be summarized as follows; First, analysis of consumer problems of resident foreigners in Korea indicated that resident foreigners recognize a burden for residence cost, food expense and education fee. Most of resident foreigners in Korea are found to use small local shops most often indicating they may experience adverse market environment due to resource constraint such as language or psychological barrier, and most of the respondents answered that the most often used payment method was cash. Furthermore, resident foreigners in Korea responded that lack of language service, lack of information provision, inability to use certain goods and services are the common cause of consumer dissatisfaction, as well as price and quality problems. Second, the level of consumer satisfaction (2.96 in 4.0) is higher than the level of life satisfaction (2.63 in 4.0). Third, the level of life satisfaction is significantly influenced by Korean language ability and the level of consumer satisfaction. The level of consumer satisfaction is by the media information source usage and consumer claim experience. Fourth, the level of consumer satisfaction is found to be the variable with the strongest causal relationship with the level of life satisfaction.

• 한국항만경제학회지
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• 제33권2호
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• pp.83-96
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• 2017

지구 온난화에 대처하는 일환으로 신재생에너지 가운데 세계 각국은 해상풍력단지 개발에 투자를 집중하고 있다. 그러나 해상풍력단지 개발은 해상에서의 구조물 운송, 설치 등의 해상작업이 요구됨에 따라 투자비용이 육상풍력단지 보다 높은 단점이 있다. 특히 해상기상 여건으로 인한 설치기간 지연은 해상풍력단지 운영의 경제성에도 영향을 끼치는 요소이다. 따라서 본 연구에서는 국내 해상의 기상여건을 고려하여 해상풍력단지 조성의 최적 일정계획을 거시적 측면에서 분석하고자 하였다. 이를 위해 수리적 모델을 개발하였고, 이를 이용하여 국내 서남해안 2.5GW 해상풍력단지 조성사업에 적용하였다. 해상 기상여건은 기상청의 자료를 활용하였고, 모델에 사용된 입력 자료는 해외의 선행 사례를 바탕으로 현실성을 최대한 반영하고자 하였다. 그 결과 해상풍력터빈 35기를 설치하는데 6개월이 소요되는 것으로 분석되었다. 특히 겨울을 피하여 작업하는 것이 비용을 최소화할 수 있는 것으로 분석되었다.

• Clinical and Experimental Reproductive Medicine
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• 제41권1호
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• pp.15-20
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• 2014

Objective: Combined oral contraceptives (COCs) have some adverse effects on the serum lipid profile. Because hyperlipidemia is one of the risk factors in cardiovascular diseases, lipid abnormalities should be evaluated in women consuming COCs. Vitamins E and C are known to have beneficial effects on serum lipid profiles. Therefore, in this study, we evaluated the effects of vitamins E and C on serum lipids in women using COCs. Methods: The study compared changes in lipid parameters with and without vitamin therapy in women consuming COCs compared to those of a control group (40 non-contraceptive users or NCU) for 4 weeks. Total cholesterol and triglyceride, low-density lipoprotein (LDL), and high-density lipoprotein (HDL) levels along with HDL/LDL ratios were measured for all participants. Results: COC users experienced significantly higher increases in the levels of triglycerides and LDL than non-users (p<0.05). However, no significant differences were noted in the total cholesterol and HDL levels. In the treated COC group receiving vitamins E and C, the HDL level and the HDL/LDL ratio increased and the LDL and triglycerides levels decreased significantly compared with those of the other groups. Conclusion: The results of our study indicate that supplementation with antioxidant vitamins E and C restores a normal lipid profile in COC users.