보안정책 정보모델링과 보안정책 관리구조

서명국,송현교,신영석 호남대학교 대학원 2004 호남대학교 대학원 논문집 Vol.4 No.-

The purpose of network administration is to give clients the high quality services of well-managed stability and efficiency. Contemporary network administration has been managed by the way of controlling network elements through network status monitoring. The larger in scale and the more complex the network is, the more complicated and difficult network administration has become because of the obstacles which are simultaneously occurred. Therefore, the PBNM(Policy-Based Network Management is proposed to ensure the simplicity and automatism in the administration of computer networks. Recently, the DMTF which is a PBNM standards technology adapted to WBEM, DEN, and IETF is leading policy modeling. In the paper, We show a modeling and sharing of secure policy object-oriented and secured network administration by showing PBNM or reinforced LDAP (Lightweight Directory Access Protocol). Also, LDAP server is applied iPlanet and suggested the way of how to share network security information and LDAP schema. Tested to manage policy information stored in LDAP server by domain browser using Ponder toolkit that is PMT (Policy Management Tool).

토끼에서 Etofenprox와 Spinosad 합제의 국소자극성 시험

황윤환,김명석,송인배,박병권,양승호,임용현,송치용,안성한,남현수,임정교,정상일,명노일,윤효인 忠南大學校 獸醫科大學 附設 動物醫科學硏究所 2008 動物醫科學硏究誌 Vol.15 No.1

This study was performed to evaluation the skin and eye irritation of etofenprox 8% and spinosad 4% combination in male New Zealand White rabbits. In skin irritation test, the combination of etofenprox and spinosad did not showed any change of body weight but caused slight skin irritation with the P.I.I. (primary irritation index) value 0.25. The etofenprox and spinosad combination showed severe eye irritation 1 h, 24 h, 48 h, and 72 h after ocular treatment, having the A.O.I. (acute ocular irritation) value of 37.3. Therefore, these result indicated that the combination of etofenprox and spinosad might be irritant formulation on eye and skin.

전북지방 젖소의 유방염 검색

조정곤,김종면,최민순,채효석,강명대,송희종 全北大學校 附設 畜産開發硏究所 1987 畜産開發硏究報告 Vol.1 No.-

A total of 444 quarters milk samples of 111 dairy cattle in Chonbuk area were examined for infection rete and causative agents of mastitis by "the laboratory procedures used in the Connecticut Mastitis Control Program (CMCP) and California mastitis Test (CMT)". The results obtained were as follows: 1. Of 444 samples, 39.2% had positive CMCP value and 24.4% positive CMT reaction. 2. One hendred and seventy four (39.2%) from 82 cattle (73.9%) were found to infected with mastitis. It was found that 8(1.8%0 of the infected quarters were clinical mastitis and all of the rest were subclinical mastitis. 3. The main causative agents were found to Staphylococcus aureus (63 quarters), Streptococcus agalactiae (56 quarters), non-Str. agalactiae streptococci (54 querters), Escherichia coli (19 quaters), the actual total number of quarters detected as mastitis would be 174, as 18 of these quarters showed multiple infection with two different organisms. 4. Having examined the number of infection quarter per head of mastitis in dairy cattle sampling, major finding were that the average number of infection quarters to total dairy cattle exemined was 1.57 quarters, and that of the infected cattle was 2.1 quarters. Infected quarters in cattle with 1, 2, 3 and 4 were noted 27(32.9%), 28(34.1%), 17(20.7%), and 10(12.3%), respectively.

ICR계 마우스에서 홍화씨 에탄올 추출물의 급성독성시험

황윤환,박병권,임종환,김명석,송인배,명노일,정상일,윤효인 忠南大學校 獸醫科大學 附設 動物醫科學硏究所 2008 動物醫科學硏究誌 Vol.15 No.1

The present study was carried out to investigate the potential acute toxicity of safflower seed by a single oral dose in ICR mice. Twenty animals of each sex were randomly assigned to four groups of 5 rats each and were administered singly by gavage at dose levels of 0, and 2,500 mg/kg bodyweight. Mortalities, clinical findings, and body weight changes were found and complete gross postmortem examinations were performed. Throughout the study period, no treatment-related deaths were observed. There were no adverse effects in clinical signs, body weight, and gross findings at any dose tested. The results showed that the single oral administration of safflower seed did not cause any toxic effect at the dose levels of 2,500 mg/kg in rats and the minimal lethal dose was considered to be over 2,500 mg/kg body weight for both sexes.

乳房炎 乳汁에서 分離된 原因菌의 抗菌劑 感受性

崔民淳,金鍾冕,趙正坤,蔡孝錫,姜明大,宋熹鍾 全北大學校 附設 畜産開發硏究所 1987 畜産開發硏究報告 Vol.1 No.-

A total of 189 strains (Streptococcus agalactiae and non-Streptococcus agalactiae 110, Staphylococcus aureus 63, and E. coli 16) isolated from bovine mastitie milk samples by "The Connecticut Mastitis Control Program" in dairy herds were examined for drug susceptibility to 8 drugs and analysed the rate of multiple resistant patterns. 1. All of the isolates were resistant to antimicrobial agents such as penicillin (PC), streptomycin (SM), kanamycin(KM), carbenicillin (CA), lincomycin (LM), gentamicin (GM), and tetracycline (TC), singly or multiply. The isolates were more susceptible to CA (84.1%),PC (78.9%), and SM (78.4%) than the the other drugs such as GM (51.8%), KM (48.7%), TC (19.6%) and LM (19.0%) in order. 2. The multiple resistant isolates (96.3%) were more than those of singly resistant isolates (3.7%) and 58 different drug resistant patterns were observed. Among 7 singly resistant isolates, CP was the commonest. While among 182 multiple resistant isolates, CP-KM-LM-TC-GM, CP-LM-TC, CP-LM-TC-GM, PC-CP-SM-LM-TC-GM, CP-KM-LM-TC, and CP-LM patterns were frequently encounted. 3. The strains of streptococcus spp. were more susceptible to CA (90.1%) and SM (82.9%) than the other drugs such as KM (43.2%), GM (38.7%), LM (13.5%), CP (10.8%) and TC (10.8%). Among them CP-KM-LM-TC-CM pattern was frequently encounted. 4. The strains of Sta. aureus were more susceptible to PC (74.6%),CA (69.8%), SM (65.1%) and GM (63.5%) than the other drugs such as KM (46.0%), CP (22.2%), TC (15.9%) and LM (9.5%). Among them CP-LM-TC pattern was commonly encounted. 5. The strains of E. coli were more susceptible to CA (100%) and KM (75.0%) tnan TC (9.5%). But the other drugs such as PC, SM, GM, CP and LM were not. Among them PC-CP-SM-LM-TC-GM pattern was commonly encounted.

비용효과적인 이동성 관리 지원을 위한 새로운 인터네트워킹 아키텍쳐의 성능분석

송명석 ( Myoung-seok Song ),정종필 ( Jong-pil Jeong ) 한국정보처리학회 2013 한국정보처리학회 학술대회논문집 Vol.20 No.1

PMIPv6(Proxy Mobile IPv6)는 네트워크 주도형 IP 기반 이동성 관리 프로토콜로서 액세스 시스템의 종류나 단말의 능력에 의존하지 않고, 단말 이동성 제어가 가능하다. 이러한 PMIPv6에 SIP 이동성을 접목하면 더 효율적인 경로를 사용해 터미널 이동성 및 세션 이동성을 확립할 수 있다. 이러한 이동성 관리를 위해 현재 PMIPv6-SIP에 대한 활발한 연구가 진행되고 있지만, 효과적인 성능평가 및 수학적 모델링이 표준화되지 못하고 있다. 이에 새로운 PMIPv6-SIP 아키텍쳐를 제안하고 핸드오버 시에 발생되는 지연과 패킷손실을 Pure-SIP과 비교하여 수학적인 모델링을 통한 효과적인 성능평가를 제안한다.

Effect of Antenatal Corticosteroid and Antibiotics in Pregnancies Complicated by Premature Rupture of Membranes between 24 and 28 weeks of Gestation

Song Geun A,Han Myoung Seok 대한의학회 2005 Journal of Korean medical science Vol.20 No.1

Post-Synthetic Modifications of Framework Metal Ions in Isostructural Metal–Organic Frameworks: Core–Shell Heterostructures via Selective Transmetalations

Song, Xiaokai,Kim, Tae Kyung,Kim, Hyehyun,Kim, Dongwook,Jeong, Seok,Moon, Hoi Ri,Lah, Myoung Soo American Chemical Society 2012 Chemistry of materials Vol.24 No.15

<P>The transmetalation (the replacement of metal ions) of a family of highly porous isostructural metal–organic frameworks (MOFs), M<SUB>6</SUB>(BTB)<SUB>4</SUB>(BP)<SUB>3</SUB> (where M = Zn(II) (<B>1</B>), Co(II) (<B>2</B>), Cu(II) (<B>3</B>), and Ni(II) (<B>4</B>), BTB = 1,3,5-benzenetribenzoate, and BP = 4,4′-dipyridyl) with an <B>ith-d</B> net topology has been investigated. These compounds have different framework stabilities depending on the framework metal ions. The transmetalation and the reverse transmetalation reactions of the framework metal ions were observed between the MOFs, <B>1</B> and <B>2</B>, having a similar thermodynamic stability. While the transmetalation from thermodynamically less stable <B>1</B> and <B>2</B> to more stable <B>3</B> and <B>4</B> were achieved by soaking single crystals of <B>1</B> and <B>2</B> in a solution of <I>N,N</I>′-dimethylformamide (DMF) containing Cu(II) and Ni(II) ions, respectively, no reverse transmetalation was observed. By simply controlling the soaking time, not only could homogeneously transmetalated crystalline framework structures be prepared via the thermodynamically controlled complete replacement of the framework metal ions but also selectively transmetalated core–shell heterostructures were formed via kinetically controlled replacement that was mainly restricted to the external shell region of the crystal. The fully transmetalated MOFs showed significantly improved framework stabilities compared with the parent MOFs. A marked improvement in the framework stability was observed, even in the selectively transmetalated Co(II)/Cu(II)- and Co(II)/Ni(II)-core–shell heterostructures. Although the frameworks are partially transmetalated, the framework stability of not only the external shell region but also of the internal core region was significantly affected.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/cmatex/2012/cmatex.2012.24.issue-15/cm301605w/production/images/medium/cm-2012-01605w_0001.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/cm301605w'>ACS Electronic Supporting Info</A></P>

Infectivity of Coronavirus Disease 2019: A Prospective Cohort Study in the Korean Metropolitan Area

Seok Hyeri,Lim Seungkwan,Kim Ji-Yeon,Park Chul Hee,Kim Joon Ho,Woo Myoung Lyeol,Won Hyejin,Kang Yu Min,Oh Hong Sang,Song Kyoung-Ho,Jung Yun Jung,Kim Tark,Jo Soonam,Choi Won Suk 대한의학회 2022 Journal of Korean medical science Vol.37 No.14

Background: Although several characteristics of coronavirus disease 2019 (COVID-19), an ongoing pandemic disease, have been identified, data on the infectivity of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) are limited. Methods: This prospective cohort study was conducted to analyze the infectivity of SARSCoV-2 based on data of all patients diagnosed with COVID-19 confirmed using real-time polymerase chain reaction test from January to April 2020 in Gyeonggi-do, the largest province in Korea. Results: Of the 502 patients, 298 consisting of 106 clusters with 5,909 contacts were included. Of these, 277 (93.0%) were symptomatic, and the most common symptoms were cough, fever, sputum, sore throat, and headache. A total of 94 patients (31.5%) had pneumonia, while 8 (2.7%) died during the follow-up period. The secondary attack rate (SAR) in the study population was 3.5% (204/5,909). In exposure settings, the SAR was higher in religious gathering (13.5% [95% confidence interval, 10.7–16.8%]), workplaces (8.49% [95% CI, 6.08–11.74%]), and schools (6.38% [95% CI, 3.39–11.69%]) than in health care facilities (1.92% [95% CI, 1.45–2.55%]). Sore throat at any period, dyspnea at diagnosis or any period, lower cycle threshold value in the lower respiratory tract samples, leukocytosis, and higher bilirubin levels were associated with higher infectivity of COVID-19. The presence of symptoms was not related to the infectivity. Conclusion: In establishing the infection control strategies for COVID-19, the variables associated with high infectivity may be considered.

경성신경인성방광환자에서 방광확대술 및 외요도괄약근절개술을 이용한 치험 1례

조명근,송희철,서기석,김종성,임정식 大韓泌尿器科學會 1998 Korean Journal of Urology Vol.39 No.2