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.

論文(론문) : 조선의 名醫 유이태(劉以泰,劉爾泰) 연구

유철호 ( Chulho Yoo ),유원준 ( Won Jun Yoo ),차웅석 ( Wungseok Cha ),홍세영 ( Sae Young Hong ),김남일58 ( Nam Il Kim ) 대한한의학원전학회(구 대한원전의사학회) 2013 대한한의학원전학회지 Vol.26 No.4

Objective: Two famous medical doctors, Yoo Itae(以泰, 爾泰) and Riu Euitae(義泰), have been well known in academic world and public in Sancheong-gun. Yoo Itae is the progenitor of Majinhak which is the therapy for measles, he wrote a “Majinpyun” as the first book of therapy for measles in Chosun. Riu Euitae, meanwhile, is a fictional medical doctor and a teacher of Heo Jun who became real without confirmation of historical truths by Roh Jeongwoo who heard about a name, Yoo Itae. Roh`s assertion was quoted in the report of literatures, papers, novel, and telecast without verification. His assertion is exposed in novel and media and it has seriously distorted the history. The purpose of this study is to rectify the historical distortion. Methods: Various references study was performed. Confirmed a family tree, birth and death year, birthplace, sepulture, words on a tombstone, writing, collections of works anthology and the existence of keepsake. Investigated records of royal family, Sancheong-gun papers, Sancheong Hyanggyo papers, Dongyuhagan, Chosun Hanryuseungram and the record of Sawoo Munjip(anthology). Analyzed Roh Jungwoo`s conversation that tells Riu Euitae is a teacher of Heo Jun and contents of an encyclopedia. Listened to testimony of descendants and assertions of historian in rural area. Verified voice recording on books taken from at birthplace and the space of activity. Results: Yoo Itae is well shown in various records and medical writing books, whereas Riu Euitae does not. Riu Euitae is not a real person in the history. Roh Jeongwoo who asserts Riu Euitae is a teacher of Heo Jun admits his mistake. But, the encyclopedia record describing Riu Euitae is a teacher of Heo Jun, government official at Sancheong district office, historians in rural area, historians in rural area who made a family shrine, gravestone, a statue, memorial, historic site of Riu Euitae on Jinju Rui could not suggest any evidences for the existence of Riu Euitae and for record Riu Euitae is a teacher of Heo Jun. Conclusion : Riu Euitae is neither a real person in the history nor a teacher of Heo Jun. Riu Euitae came from pronunciation confusion between ‘I’ and ‘Eui’ in Kyungsang province. Riu Euitae is Yoo Itae on Geochang Yoo who was a medical doctor of King, Sukjeong and wrote medical books including <Majinpyun>, <Silheomdanbang>, <Inseomungyunrog>.

일 대학병원에 입원한 노년기 양극성 장애 환자의 인구학적 및 임상적 특징

조숙현(Sook Hyun Cho),정한용(Han Yong Jung),권영준(Young Jun Kwon),이소영(So Young Lee),김양래(Yang Rae Kim),김윤정(Yun Jung Kim) 대한노인정신의학회 2006 노인정신의학 Vol.10 No.2

Objectives : As the elderly population is continuing to increase, psychiatric diseases of the elderly are becoming an important social issue. This study looks into the demographical and clinical features of the elderly patients diagnosed with bipolar disorder in a University hospital. Methods : The study subjects include patients admissioned in the closed wards of Soonchunhyang Seoul hospital and Cheonan hospital from March, 2000 to February, 2005 who met the DSM-IV-TR criteria for bipolar disorder at the time of discharge. A total of 146 patients (76 men, 70 women) medical records were studied retrospectively. Subjects older than the age of 50 at time of admission were grouped as the old age group, whereas those who were younger than 50 as the young age group. Also among the old age group, those who had the first onset of episode under the age of 50 were grouped as the early onset group, whereas those who had the first onset after the age 50 were grouped as the late onset group. Results : The number of bipolar disorder patients in the young age group and old age group were 73 and 73 respectively. The number of early onset group and late onset group were 46 and 23 respectively. The old age group had a relatively higher incidence of bipolar II disorder than the young age group. Also in the old age group there was a higher incidence of hypomanic or depressive episode rather than manic episode compared to the young age group. And in the old age group psychotic symptoms were less common and the mean admission length shorter than the young age group. Additionally in the old age group treatment with Lithium monotherapy or with no mood stabilizers at all were relatively common. Among the old age group, late onset group had a higher rate of bipolar II disorder than the early onset group. Conclusion : This study shows differences in the demographical and clinical features among different age groups. But additional research would be required to determine whether the bipolar disorders in the elderly or late onset group are actually a different type of disorder from those of the young.

고령자 급성 췌장염의 임상적 고찰

백용한,서정훈,송건훈,이진헌,송시영,정재복,강진경,박인서,이수진 大韓消化器病學會 1998 大韓消化器病學會誌 Vol.32 No.3

비만한 성인남성의 음주 및 식이습관의 특성연구

이영준 ( Young Jun Lee ),이명종 ( Myeong Jong Lee ) 한방비만학회 2002 한방비만학회지 Vol.2 No.1

The Case Study of Alcohol & Food Habits in Obese Adult Men Young-Jun Lee, O.M.D., Myeong-Jong Lee, O.M.D. Department of Oriental Rehabilitaion Medicine, College of Oriental Medicine, Dongguk University Objective : Obesity is closely related to several factors such as genetic factors, energy intake and energy expenditure. It was said that alcohol & food habits were important to formation of obesity. The purpose of this study are to find out the alcohol & food habitual characteristic of obese adult men and to promote the health of these men. Method: From May, 2000 to November, 2001, We collected 75 cases obese patients, who visited to the Health Examination Center Dept. of Kangnam oriental medicine hospital, Dongguk University who took the health examination, and control group who were matched by age and sex. We investigated the alcohol & food habits by questionnaire. Results and Conclusions: 1. The patients over BMI 25 were in excess of the standard of obesity such as Modified Broca s Index, Percent Body Fat, Abdominal Fat Distribution. But, the patients below BMI 20 were normal range of obesity degree. 2. Abdominal Fat Distribution was increased according to age and physical activity was decreased in obese group. 3. The mean of total calory by alcohol in a month was 4324.6kcal in obese group while control group was 2206.8kcal. 4. In the comparison of food habit, obese group is higher than control group in 7 articles of the 13 articles which influenced obesity.

관동맥질환에서 저밀도 지단백 입자 크기의 분포

임효영,김인숙,승기배,강동헌,전두수,장기육,박준철,이수영,홍순조,최규보 대한순환기학회 1998 Korean Circulation Journal Vol.28 No.8

≪난장이가 쏘아올린 작은 공≫의 인칭변화에 관한 연구

박영준(Young Jun Park) 한국현대소설학회 2009 현대소설연구 Vol.- No.41

In this paper I told about Cho, Se-hee`s idea and characteristics of A Dwarf Launches A Small Ball. It has 12 short stories. 7 stories are composed by the 3rd person view. 5 stories are composed by the 1st person view. Cho made a contrast between the poor and the rich by selecting narrator. 7 stories` main narrators are friends of Young-su. Young-su is the most important person in A Dwarf Launches A Small Ball. He was a poor boy, finally he has become a labor fighter. Cho served a subject that the 3rd person view stories have his main idea about capitalism. In the 1st person view Cho said about character`s consciousness and unconsciousness freely. So the contrast becomes vivid more and more. One of the narrator`s name of The 1st person view stories is Kyoung-hoon. He is a son of a capitalist. Cho said the fight between capital and labor would be a indispensible accident in our modern society.

지적장애학생의 전환교육프로그램과 특수교육과정 사회교과의 통합적 접근 구안

김영준 ( Young Jun Kim ),강경숙 ( Kyung Sook Kang ),김주영 ( Joo Young Kim ) 한국특수교육문제연구소 2012 특수교육저널 : 이론과 실천 Vol.13 No.2

본 연구는 지적장애학생의 성인 자립생활 적응능력과 특수교육의 실제적인 결과를 향상시키기 위한 방안으로 전환교육프로그램과 특수교육과정 교과교육의 통합적 접근을 구안하였다. 이를 위하여 본 연구는 지적장애학생의 IEP 자료 내용에 포함된 생활요구를 전환사정 도구인 Brolin(1993)의 생활중심 진로교육 모형에 따라 생활영역, 하위영역, 구체적인 과제기술의 순으로 종합 분석하여 식당이용기술을 수업 주제로 설정하였다. 그리고 수업 주제에 대한 학습목표를 설정하기 위해 앞서 Brolin(1993)의 모형에 의해 분석된 구체적인 과제기술과 밀접한 특수교육과정 사회교과의 각 영역 및 수준별 해당 내용체계 요소들을 추출하여 수업 주제의 맥락에 따라 보완하였다. 이에 본 연구는 수업 주제인 식당이용기술의 학습목표를 식당 찾기, 음식 주문, 식사 기술로 설정하였다. 또한 수업 주제 및 학습목표를 바탕으로 실제 적용할 수 있는 교육방법 및 평가를 구안하였다. 즉, 수업 주제 및 학습목표가 실제 수행되는 지역사회에 대한 생태학적 분석과 그 결과에 따라 수업 주제의 학습목표별로 과제분석을 구성하였으며, 통합적 중재 패키지 수준에서 다양한 교수·학습 전략과 과정중심 수행평가 방법도 구성하였다. 아울러 설정된 수업 주제및 학습목표를 기능적으로 심화·발전시키기 위해 교과 간·교과 내 통합에 의해 사후확장활동을 구성하였다. This study designed an integral approach to transition education program and subject matters of special education basic curriculum, as a means to improve actual outcomes of adult independent living adaptation ability and special education of students with intellectual disabilities. In this study, life needs included in the IEP data of students with intellectual disabilities were comprehensively analyzed in the order of life domain, sub domain and specific task skills according to the life-centered career education model of Brolin(1993), a transition assessment tool, and selected restaurant skill as the topic of the course. Also in order to set learning goals on the course topic, content elements in each domain and level of social subject in special education basic curriculum, closely related to specific task skills analyzed by the model of Brolin(1993) mentioned earlier, were extracted and supplemented according to the context of course topic. Thereupon in this study, search of restaurants, ordering of food and dining skill were selected as learning goals on the course topic. In addition, this study designed practically applicable teaching methods and assessment of course topic and learning goals, which had been selected based on the transition education program by Kim, Young-Jun and Kim, Jin-Ho(2010). That is, ecological analysis on the community in which the course topic and learning goals were being carried out was conducted with task analysis on each learning goal on the course topic. Various teaching and learning strategies were configured with process-focused performance assessment methods at the level of integral intervention package. Furthermore in an attempt to functionally intensify and develop the selected course topic and learning goals, follow-up extension activities were devised through intra -subject and inter-subject integration.

Increased 11β-hydroxysteroid dehydrogenase type 1 contributes to barrier dysfunction in aged skin

( Beom Jun Kim ),( Noo Ri Lee ),( Chung Hyeok Lee ),( Young Bin Lee ),( Solam Lee ),( Hyun Jee Hwang ),( Eunjung Kim ),( Eung Ho Choi ) 대한피부과학회 2019 대한피부과학회 학술발표대회집 Vol.71 No.2

Background: 11β-hydroxysteroid dehydrogenase type 1 (11β-HSD1) converts inactive cortisone into cortisol, an active form, and is expressed by several tissues including the skin. Excessive active glucocorticoid (GC) deteriorates skin barrier function. Objectives: To find out if 11β-HSD1 affects on the barrier function in aged skin. Methods: We have performed human and in vivo studies. We measured cortisol in stratum corneum (SC) and oral epithelium of the elderly and young. Hairless mice were used for 11β-HSD1 immunohistochemistry staining of skin and measuring skin barrier function and serum cytokines. 11β-HSD1 knock-out (KO) mice and its wild-type were used for measuring lipid synthesis related enzyme. Results: Cortisol levels were elevated in SC and oral epithelium of the elderly rather than young. The 11β -HSD1 expression was increased in immunohistochemistry stain of aged mice skin. Aged mice showed decreased transepidermal water loss (TEWL) and SC hydration, and increased SC integrity than young. Serum inflammatory cytokines including interleukin-1α, -4, -10, -31 and tumor necrosis factor-α were increased in aged mice than young. The expressions of lipid synthesis related enzymes in epidermis were elevated in KO mice and topical 11β -HSD1 inhibitor applied mice. Conclusion: 11β-HSD1 expression is elevated in aged skin. It increases active GC and then deteriorates skin barrier function.

Biomass 유래 퓨란계 단량체를 이용한 폴리에스터의 중합 및 특성 연구

정용석(Yong Seong Chung),이영철(Young Chul Lee),서강진(Kang Jin Seo),김명준(Myeong Jun Kim),정지혜(Ji Hea Jeong),노시태(Si Tae Noh) 한국고분자학회 2011 폴리머 Vol.35 No.6

바이오매스에서 유래된 2,5-dihydroxymethylfuran(DHMF)을 KMnO4 산화반응으로 furan-2,5- dicarboxylic acid(FDCA)를 합성하였다. 합성한 FDCA와 다이올류를 에스테르화 반응과 축중합 반응을 진행시 켜 폴리에스터를 중합하였다. 폴리에스터는 NMR을 통해 조성을 분석하였고 DSC와 TGA를 통해 열적특성을 분 석하였다. 합성된 폴리에스터의 고유점도는 0.78∼1.2 dL/g으로 상용화된 poly(ethylene terephthalate)(PET) 와 비슷하였다. 다이올의 길이가 증가할수록 Young`s modulus와 strength는 낮아지고 elongation-to-break는 높아지는 경향을 확인하였다. 합성한 poly(ethylene furandicarboxylate)(PEF)의 Young`s modulus는 3551 MPa, strength는 103 MPa로 상용화된 PET와 비슷하였다. Furan-2,5-dicarboxylic acid (FDCA) was synthesized by KMnO4 oxidation of 2,5-dihydroxymethylfuran( DHMF) derived from biomass. Polyesters were synthesized by esterification and polycondensation of FDCA with various diols(ethane-1,2-diol, propane-1,3-diol, butane-1,4-diol, hexane- 1,6-diol, decane-1,10-diol). The composition of polyesters was characterized by using 1H NMR. Thermal properties of the polyesters were characterized by DSC and TGA. Intrinsic viscosities(IV) of the polyesters were measured to be 0.78∼1.2 dL/g comparable with IV of commercial poly(ethylene terephthalate)(PET). As the chain lengths of diols increased, Young`s modulus and strength decreased and elongation-to-break generally increased. Young`s modulus and strength of the polyesters were measured to be 3551 MPa and 103 MPa, respectively, comparable with commercial PET.