개선한 일회성 난수를 이용한 RFID 상호인증 프로토콜

윤은준(Eun-Jun Yoon),유기영(Kee-Young Yoo) 한국정보과학회 2009 정보과학회논문지 : 정보통신 Vol.36 No.2

2008년에 Kim-Jun은 의도하지 않은 정보의 누출로 인한 악의적인 공격들 및 범죄 악용 문제점들을 해결하기 위해 일회성 난수를 이용한 RFID 상호인증 프로토콜을 제안하였다. 보안성 분석을 통하여 Kim-Jun은 제안한 프로토콜이 재전송 공격을 포함한 다양한 공격들에 안전함을 증명하였다. 하지만 본 논문에서는 그들의 주장과는 달리 그들이 제안한 프로토콜이 여전히 재전송 공격에 취약함을 증명하며, 더 나아가 동일한 연산 효율성을 보장하며 재전송 공격을 막을 수 있는 간단히 개선된 일회성 난수 기반의 RFID 상호인증 프로토콜을 제안한다. In 2008, Kim-Jun proposed a RFID mutual authentication protocol using one-time random number that can withstand malicious attacks by the leakage of important information and resolve the criminal abuse problems. Through the security analysis, they claimed that the proposed protocol can withstand various security attacks including the replay attack. However, this paper demonstrates that Kim-Jun's RFID authentication protocol still insecure to the replay attack. In addition, this paper also proposes a simply improved RFID mutual authentication protocol using one-time random number which not only provides same computational efficiency, but also withstands the replay attack.

Age-dependent differences of treadmill exercise on spatial learning ability between young- and adult-age rats

Jun-Jang Jin,Il-Gyu Ko,Sung-Eun Kim,Lakkyong Hwang,Man-Gyoon Lee,Dae-Young Kim,Sun-Young Jung 한국운동재활학회 2017 JER Vol.13 No.4

Repellent efficacy of essential oils and plant extracts against Tribolium castaneum and Plodia interpunctella

Lee Hwa‐Eun,Hong Su Jung,Hasan Najmul,Baek Eun Joo,Kim Jun Tae,Kim Young‐Duk,Park Mi‐Kyung 한국곤충학회 2020 Entomological Research Vol.50 No.9

This study was conducted to investigate the repellent efficacy of essential oils (Origanum vulgare, Pimpinella anisum, and Tanacetum cinerariifolium) and four plant extracts (Agastache rugosa, Capsicum annuum, Citrus reticulata, and Ginkgo biloba) against Tribolium castaneum (adults and larvae) and Plodia interpunctella (larvae). Gas chromatography/mass spectrometry analysis revealed the presence of carvacrol, anethole, and jasmolin I as the predominant constituent in O. vulgare, P. anisum, and T. cinerariifolium, respectively. Furthermore, ethyl hexopyranoside, 9,12‐octadecadienoic acid, cyclopentanol, and 2‐cresol were identified in A. rugosa, C. annuum, C. reticulata, and G. biloba, respectively. The repellent efficacy of each essential oil, plant extract, and the combination of oils was evaluated using a specially designed cylinder trap for 120 h. Among the three oils, O. vulgare and T. cinerariifolium had greatest repellent efficacy against P. interpunctella larvae. T. cinerariifolium exhibited effective repellence against the adults and larvae of T. castaneum. Therefore, O. vulgare (O) and T. cinerariifolium (T) were selected for further investigation of combined effects. Two essential oils were mixed in three different ratios of OT1 (1:3), OT2 (1:1), and OT3 (3:1). The repellent efficacies of OT1 and OT2 against the adults of T. castaneum were significantly greater than that of OT3. OT1 was effective against the larvae of T. castaneum, whereas OT2 was effective against the larvae of P. interpunctella. OT1 enhanced the repellent efficacy by approximately five times against larvae of T. castaneum, compared with that of T. cinerariifolium. Overall, OT1 was selected as the best repellent substance against all the tested insects.

Trichophyton verrucosum infection in Korea: Analysis on 224 patients from 1976 to 2015

( Dong Hyuk Eun ),( Jun Hong Park ),( Sun Young Moon ),( Yong Hyun Jang ),( Seok-jong Lee ),( Do Won Kim ),( Yong Jun Bang ),( Jae Bok Jun ),( Weon Ju Lee ) 대한피부과학회 2016 대한피부과학회 학술발표대회집 Vol.68 No.2

Background: Trichophyton (T.) verrucosum is a dermatophyte causing ringworm in cattle, distributed worldwide. It can be responsible for various inflammatory lesions of skin and scalp. In Korea, kerion celsi caused by T. verrucosum was first reported at 1986 in the southeast province of Korea. Since then, many patients infected with T. verrucosum have been reported in Young-nam province. There are few long-term studies about epidemiological characteristics of T. verrucosum. Objectives: To investigate the clinical and epidemiological characteristics of T. verrucosum infections in Korea. Methods: A total of 224 patients were diagnosed as T. verrucosum infection by fungal culture from 1976 to 2015. The data were based on a retrospective survey of medical records. Results: The annual incidence of patients with T. verrucosum infection had been increasing since the report in 1986. The number of patients showed a peak in 1988. After 2000, the number of patients had been decreasing. Female to male ratio showed a 1.2-fold predominance of female infection. And more than 15-year-old group was 59.4% of total patients. T. verrucosum infection was most commonly seen in spring and was found predominantly in patients living in rural areas. Face was most frequently involved, followed by arms. Conclusion: These findings provide useful information for understanding of T. verrucosum infection and future dermatophytosis prospects.

대동맥 협착증과 동반된 출혈성 위장관 동정맥 기형에서 Estrogen-Progesterone 치료 1예

김도연,김화정,김효정,남준식,박수영,박영미,신정은,주미순,황민규,정혜경,손혜영,이선영,이한주 大韓消化器內視鏡學會 1999 Clinical Endoscopy Vol.19 No.부록2

갑상선 유두암이 병발된 가족성 대장 용종증 1예

백종현,소창배,이은영,이지숙,신은경,박은호,서정아,양재홍,송준영,박선자,박요한,최영식 고신대학교의과대학 2007 고신대학교 의과대학 학술지 Vol.22 No.2

Familial adenomatous polyposis (FAP) is an autosomal dominant syndrome, typically characterized by multiple colorectal adenomas and increased incidence of colorectal carcinomas if it is not treated. Moreover, a variety of extracolonic manifestation are seen. The prevalence of thyroid tumors developing in patients with FAP is about 1∼2%. Generally, papillary thyroid cancer indicates low mortality but ,however, as people get older, the cancer becomes more aggressive. So, the operation is required. Recently we experienced a case of FAP, presenting with papillary thyroid carcinoma, and reported with a brief review of literatures.

연령대별 요추 추간판탈출증 환자의 요근과 척추주위근 단면적에 대한 분석

공덕현 ( Deok Hyun Kong ),배광호 ( Kwang Ho Bae ),고호연 ( Ho Yeon Go ),강명진 ( Myung Jin Kang ),김준수 ( Jun Su Kim ),양기영 ( Kee Young Yang ),이재훈 ( Jae Hoon Lee ),은영준 ( Young Jun Eun ) 한방재활의학과학회 2010 한방재활의학과학회지 Vol.20 No.4

Objectives :This study was designed to evaluate the correlation of the cross-sectional areas(CSA) of paraspinalis(iliocostalis lumborum, multifidus, longissimus thoracis parts lumborum) and psoas muscle and sex, age, change of the VAS(visual analogue scale) and past history of chronic low back pain in patients suffering from HIVD(herniation of intervertebral disc). Methods :Medical records of 140 subjects with HIVD were retrospectively reviewed. The MRI(magnetic resonance imaging) findings on the patients were scanned and analyzed by PiView program to find the paraspinal and psoas muscle CSA and were evaluated by the correlation of sex, age, change of the VAS, and past history of chronic low back pain. Results :There was significant difference between groups in male and female, young-adults age and middle age, middle age and old age, young-adults age and old age. But the correlation of the paraspinal and psoas muscle CSA and past history of chronic low back pain were partially significant. On the other hand, the correlation of the paraspinal and psoas muscle CSA and change of the VAS were not significant. Conclusions :These results suggest that the cross-sectional areas(CSA) of paraspinalis and psoas muscle have relevance to sex and age.

조대술을 이용한 함치성 낭종의 치험례

전은민,김태완,김현정,남순현,김영진 대한소아치과학회 2007 大韓小兒齒科學會誌 Vol.34 No.3

저출산･고령사회 이슈에 대한 정책대응 과제 : 인천시 사례를 중심으로

문은영,권미애,전혜정 이화여자대학교 젠더법학연구소 2016 이화젠더법학 Vol.8 No.1

This study was conducted with the need for preparing active measures of the central government and the local government to deal with low fertility and aging society issues and with the purpose of setting the related policy direction. The issues of recent low fertility and aging are experienced globally and the decline of population is detected in Korea as well. Therefore, multilateral efforts are taken to deal with the imminent phenomenon at the governmental level. Incheon Metropolitan City, with its population of 3 million, is one of the big cities in rapid progress of low fertility and aging phenomenon. While the total fertility rate of Incheon is 1.21 (Statistics Korea, 2015) which is the similar level with the national average, it is far below the population replacement level and has continuously been recording the low figures since 2000. Besides, the elderly population rate in 2014 was 10.3%, a 5.5% increase compared to the previous year. It is expected that the population aging would be accelerated for the next 30 years and it is forecasted that the elderly population rate of Incheon would reach around 30% by 2040. According to the survey results of general citizens on this population change, more than half of the respondents seriously recognized the shift to the low fertility and aging society and demanded the measures to deal with the issues. To set the policy direction in association with the central government within the local region, this study explores the tasks to deal with the policy and the demands for the policy in Incheon Metropolitan City. 본 연구는 저출산・고령사회 이슈에 대응하여 중앙정부와 더불어 지자체의 적극적 대책마련의 필요성과 정책방향성 수립을 위한 목적으로 시도되었다. 최근 저출산과 고령화의 문제는 전 세계적으로 경험되는 문제이며 또한 우리나라에서도 인구의 변화가 감지되고 있는 상황이다. 이에 정부차원에서 이미 저출산과 고령화 문제를 경험하고 대처하고 있는 선진국의 사례를 검토하면서, 다가올 현상에 대해 대응할 수 있기 위한 다각적 노력이 진행되고 있다. 인천시는 인구 300만 시대가 임박하는 상황에서 저출산과 고령화 현상이 빠르게 진행되고 있는 대도시중 하나이다. 인천시의 합계출산율은 1.21명으로 전국평균과 동일한 수준에 있지만 인구대체수준에는 크게 못 미치는 상황이며, 2000년 이래 지속적으로 낮은 수치를 기록하고 있다. 또한 2014년 노인인구 구성비는 10.3%로 전년대비 5.5% 증가되었으며, 향후 30년간 고령화가 빠른 속도로 진행될 것으로 전망되며 오는 2040년 인천의 고령인구비율이 약 30%로 예측되고 있다. 이러한 인구변화에 대해 일반 시민들에게 저출산・고령화 사회로의 변화는 실태조사결과 절반 이상이 심각하게 인지하고 있는 상황이며, 이에 대한 대책마련을 요구하고 있는 것으로 나타났다. 본 연구에서는 중앙정부와 연계성 있는 지역 내 정책방향 수립을 위해 인천시 사례를 들어 지역에서의 정책에 대한 시민체감도와 정책 수요, 또 정책대응의 과제를 살펴보고자 한다.

위 MALT 림프종에서 다발성 림프절 전이로 오인된 동시성 림프절 결핵 1예

김성은,김규종,김도현,송준영,문대성,장리라,유찬희,문원,박무인,박선자,김영옥 고신대학교의과대학 2008 고신대학교 의과대학 학술지 Vol.23 No.2

28세 남자가 내시경적 점막절제술을 통해 저등급 위MALT 림프종으로 진단되었다. 병기설정을 위해 18F-FDG PET 검사를 시행하였고 우측 쇄골상부, 우측상/하부 기관주위, AP window 부위에 강한 섭취가 관찰되어 전이성 림프절로 판단하였다. 그러나, 우측 쇄골상부 림프절에서 시행한 절제생검에서 만성육아종성염증소견이 관찰되었고 조직의 결핵 중합효소연쇄반응에서도 양성 반응을 보였다. 2개월간 항결핵제의 사용 후 시행한 추적 컴퓨터단층촬영 검사에서 림프절 크기의 감소를 보여 최종적으로 위 MALT 림프종에서 광범위 림프절 전이로 오인된 동시성 림프절 결핵으로 진단되었다. A 28-year-old man was diagnosed as gastric MALT lymphoma in diagnostic EMR (endoscopic mucosal resection). He subsequently underwent an 18F-FDG PET. 18F-FDG PET showed intense multifocal uptake in right supraclavicular, right upper and lower paratracheal, and AP window areas that was considered radiologically to represent widespread metastatic lymphadenopathy. Excisional biopsy of a supraclavicular lymph node, however, revealed chronic granulomatous lymphadenitis with a positive reaction of Tb-nested PCR. After antituberculosis treatment for 2 months, a follow-up CT scan showed complete resolution of the lesions. Intense 18F-FDG uptake could be due to an infectious process such as synchronous tuberculous lymphadenitis. Therefore, this could mimic a malignant condition such as lymphoma with extensive lymph node metastasis due to a false-positive finding, which may lead to a misdiagnosis.