서울의 Penicillinase Producing Neisseria gonorrhoeae 발생빈도(1998)

김재홍,김준호,반재용,이정우,황성주,정준규,정성태,강진문,조흔정,홍창의,정혜신,이한승,김이선,이봉길,이종호,선영우,한기덕,윤성필,이성훈,안종성,박석범,문승현,조항래,김형섭,류지호,황재영,박준홍,손상욱 한양대학교 의과대학 2001 한양의대 학술지 Vol.21 No.1

In recent years, gonorrhea has been pandemic and remains one of the most common STDs in the world, especially in developing countries. For the detection of a more effective therapeutic regimen and assessing the prevalence of Penicillinase Producing Neisseria gonorrhoeae(PPNG), we have been trying to study the patients who have visited the Venereal Disease Clinic of Choong-Ku Public Health Center in Seoul since 1980 by menas of the chromogenic cephalosporin method. In 1998, 93 strians of N. genorrhoeae were isolated, among which 60(64.5%) were PPNG. The prevalence of PPNG in Seoul, which had been decreased to 39% in 1996 after a peak of 74.3% in 1993, is increased to 64.5% in 1998.

施設園藝經營에 있어서 에너지 消費行態에 관한 事例分析

韓成一,金善柱 건국대학교 1995 學術誌 Vol.39 No.1

This study aims at clarifying how energy is used efficiently in green-house horticultural forming. The results of analysis summarized as follows ; First green-house horticultural farmings and areas of cultivation are increasing simultaneously every year, and building and facilities will be modernized in the future. Second, the weight of fuel in green-house horticultural farming is different by crops. So there must be formulated a system considered a characteristic of crops to use energy efficiently. Third, building and facilities must be modernized to use energy efficiently in green-house horticultural forming. That is glass-covered house will be extended.

미맹출 유규치에 관한 증례

한연선,최병재,김성오,이종갑 大韓小兒齒科學會 2002 大韓小兒齒科學會誌 Vol.29 No.3

치아의 맹출은 치아가 구강내 교합평면에 도달하여 기능적인 위치를 차지할 때까지의 치아 이동 및 골조직 내에서의 발달로 이루어지는 생리학적인 양상으로 이해되어진다. 그러나 치아가 정상적으로 맹출해야 하는 시기를 지나서도 골조직 내에서 맹출하지 않을 수 있으며, 이러한 치아를 매복치라 일컫는다. 이러한 치아 매복의 주된 요인은 국소적인 것으로 악궁내 공간부족, 치아 위치 이상, 과잉치, 맹출 경로의 감염, 낭종 및 안면 외상으로 인한 치배의 영향 등이 있다. 또한 쇄골두개이골증, 골다공증 등의 전신적 그리고 유전적 질환도 맹출 장애와 맹출 지연 등과 관련이 있다. 현재까지 매복치의 대부분은 영구치로 보고되었으며 반면에 유치의 매복에 대한 것은 극히 소수에 불과하고, 매복된 유치의 대다수는 제 2 유구치이다. 유치의 매복은 유착에 의해 이차적으로 생긴 저위교합과는 구별되어야 하며, 유치의 매복에 대한 병인은 유치 치배의 비정상적인 발달로 인해 조기에 유착이 일어나는 것으로 추측되어지고 있으나, 아직까지 정확하게 밝혀진 바는 없다. 유치의 맹출 실패로 나타날 수 있는 문제점으로는 계승 영구치 발달 및 맹출 방해, 낭종 형성이나 감염의 발생 등을 생각해볼 수 있다. 본 증례들은 연세대학교 치과대학병원 소아치과에 내원한 환아의 구강 및 방사선학적 검사에서 유구치의 매복이 관찰되었기에 이에 보고하는 바이다. The term 'impaction' is used to designate a tooth which remains unerupted in the jaw beyond the time at which it should normally be erupted. The main causal factors are local (lack of space, ectopic positions of teeth, supernumerary teeth, cyst, the occurrence of infectious process in the eruption path, traumatic facial injury etc.). Systemic and genetic disorder, however, may have primary failure of eruption and retarded eruption as additional symptoms (cleidocranial dysplasia, osteopetrosis etc.). Most cases of impacted teeth reported in the literature are of permanent teeth. The absence of primary teeth occur rarely whereas impaction of second primary molars is more numerous than all other impactions. Impaction due to primary failure of eruption must be distinguished from the secondary infraocclusion. The eti-ology of impaction of primary teeth is probably related to early ankylosis of primary teeth, but it is not clear. Failure of eruption of primary teeth cause a number of complications, such as interference with develop-ment and eruption of succedaneous teeth, formation of cyst, and damage to adjacent teeth. This study is to report cases of primary failure of eruption in the primary dentition.

OLT의 QoS 기능 구현

한성수,이순흠,이병수 순천향대학교 부설 산업기술연구소 2005 순천향 산업기술연구소논문집 Vol.11 No.2

In this paper, Implemented QoS functions are described which are key functions of OLT in the implemented EPON system which is considered currently as a economical solution of FTTH. The implemented QoS functions use L2/L3/L4 header information and provide different services and quality

시멘트 및 고성능AE감수제가 고유동콘크리트의 유동특성에 미치는 효과에 관한 실험적 연구

박선규,반성수,우영제,김규용,김무한 忠南大學校 産業技術硏究所 1998 산업기술연구논문집 Vol.13 No.1

The fluidity of high flowing concrete can be affected by numerous parameters which characterize either the cement or the admixture. The reactivity of a cement as determined by its chemical compositions (especially its C₃A content), its fineness and its content in sulfates and alkalies obviously plays a key role in rheology of high flowing concrete in fresh state. Specific properties of high range water reducing AE agent used to enhance the workability of high flowing concrete also exert important influence. The purpose of this experimental study is to investigate and analyze the effect of cement and high range water reducing AE agent in fluidity, setting, compressive strength of high flowing concrete. As a result, we found that fluidity of high flowing concrete is affected greatly by kind of cement and high range water reducing AE agent, also, there is harmonic character between high belite cement and polycarbonic acid high range water reducing AE agent.

빈발재발성 미세변화 신증후군환아에서 발생한 다발성 뇌경색증

조성옥,한헌석,차상훈,이경희,박범수,하태선,채수안 충북대학교 의과대학 충북대학교 의학연구소 1995 忠北醫大學術誌 Vol.5 No.2

신증후군에서는 동맥 및 정맥의 혈전에 의한 혈전색전증의 위험이 높다. 이는 혈 중 응고인자 Ⅰ, Ⅱ, Ⅶ, Ⅷ, Ⅹ등의 증가와 뇨소실로 인한 antithrombin Ⅲ의 감소, 섬유소 용해계의 변화, 혈소판 응집력의 증가에 기인하며 그 외 스테로이드 투여, 이뇨제 투여, 저체액 상태도 관여한다고 생각하나 이런 과응고현상에 대한 정확한 병태생리는 규명되고 있지 않다. 저자들은 내원 21개원 전 처음 신증후군 증상을 보였고 신장 조직 검사상 미세변화 신증후군으로 진단을 받고 스테로이드와 면역 억제제를 사용하였으나 6개월에 3-4회의 재발을 보이던 중 내원 1달 전 보호자 자의로 모든 약물 복용을 중단한 채로 지내다가 고열과 반혼수 상태를 보여 내원한 7세 남아에서 다발성 뇌경객증을 발견하였기에 문헌 고찰과 함께 보고하는 바이다. The risk of thromboembolism by arterial or venous thrombosis is high in the nephrotic syndrome. This may be due to the increased serum concentrations of the factor Ⅰ, Ⅱ, Ⅶ, Ⅷ, Ⅹ etc, decrease of antithrombin Ⅲ due to urinary loss, the change of thrombolytic system, increase in the platelet aggregation capacity, the use of steroid, diuretics, and hypovolemic state. But, the pathophysiology of this hypercoagulable state has not been clear. A 7-year- old boy had been diagnosed as having frequently relapsing minimal change nephrotic syndrome, 21 months ago. In spite of the administration of prednisolone and cytoxan, he had presented recurrent proteinuria in the frequency of 3-4 times per 6 months. From 1 month prior to visiting emergency room, his parents discontinued his medications, therefore, he showed fever and semicomatous mental status. In brain MRI study, multiple cerebral infarcts were noted. So, the authors report a case of multiple cerebral infarcts in a patient with frequently relapsing minimal change nephrotic syndrome with a brief review of related literature.

茯笭 人工栽培에 適合한 原木과 種菌 接種量 및 接種方法에 關한 硏究

金成敏,申東一,具漢謨,李武鉉,金善喆 공주대학교산업개발연구소 2000 産業開發硏究 Vol.8 No.-

This study was carried out to improve the culturing method of P. cocos, on saving labor and inoculation amount. Therefore, the result of this experiment was as the following. Proper mycelium growth and density of P. cocos was observed in MCM(mushroom complete medium). In the selection of tree species, pine and larch had better in spawn culture and sclerotia formation condition. In the experiment of pine, Yield was 33.7㎏/3.3㎡. In inoculation amount, conventional method(cross slice inoculation) required 16 ~ 20 bottles/1000cc of spawn. In contrast, short log,drilling inoculation method required 8 ~ 10 bottles/1000cc, 2 ~ 3 bottles/1000cc of spawn, which reduced by 50% and 85 ~ 90% of inoculation respectively. In conventional method, the yield of pine was 23.4㎏/3.3㎡. In the case of drilling and short log inoculation, Yield was 28.7㎏ / 3.3㎡(25㎜ / depth) and 30.1kg / 3.3㎡(35mm / depth), 31.7㎏ / 3.3㎡ respectively, Therefore, short log inoculation was increased by 25% and 35% compared with conventional method. In conclusion, management cost was also saved.

췌장의 대낭성 장액성 낭선종 : 2예 보고

김한성,최현준,주미,장선희,곽지은,김철남 인제대학교 2006 仁濟醫學 Vol.27 No.-

Typical serous cystadenoma of pancreas is formed by many microcysts, of which diameter are less than 2cm. Recently, rare variants are also reported as macrocystic, unicystic, or multicentric. Macrocystic serous cystadenoma is diffcult to differentiate from pseudocyst, mucinous cystadenoma and other cystic mass having macrocysts. As these lesions have different symptoms, methods of treatment, and prognoses, it is important to diagnose and treat correctly. We report 2 cases which diagnosed as macrocystic serous cystadenoma with stressing scarcity value and clinical importance.

KOH를 함침시킨 활성탄 흡착제의 H₂S 흡착특성

차선영,이석기,김한수,박영성 大田大學校 環境問題硏究所 1999 환경문제연구소 논문집 Vol.4 No.-

H2S adsorption characteristics of the impregnated activated carbon adsorbent were investigated. KOH reagent was used for impregnating the activated carbon. For analyses of the impregnated activated carbon adsorbent, various methods such as TGA test and acid-base titration, as well as measurements of BET surface and pH were adopted. As operating variables, adsorption temperature (25~45℃) and H₂S concentration(4.96~18.23mg/ℓ) were applied. The experimental results showed that the H₂S adsorption equilibrium capacity of KOH impregnated activated carbon adsorbent increased with increasing temperature and H₂S concentration.

수정진동자를 이용한 2가이온의 전기화학적 특성 분석

송성훈,김종민,박지선,손진언,김영한,장상목 동아대학교 공과대학부설 생산기술연구소 1998 生産技術硏究所硏究論文集 Vol.3 No.2

This paper shows eletrochemical extraction property changes of dyed cations by the various eletrochemical conditions using quartz crystal technique. The quantitative and qualitative changes of electrode surface was monitored measuring oscillation parameters of quartz crystal. The results suggest that the eletrochemical extraction of cation is influenced by the various factors such as ionic size, ionic intensity and tendency of ionization.