국제전립선증상점수와 요류속도 및 전립선용적과의 상관성에 대한 고찰

이상철,이형래,김용태,김원 大韓泌尿器科學會 1998 Korean Journal of Urology Vol.39 No.4

고삼투압성 비케톤성 상태의 예후인자

안성훈,김양원,김미란,진헌철,안지영,이상래,류석용,김홍용,김성준,이병권,김경환 대한응급의학회 2001 대한응급의학회지 Vol.12 No.2

Background: A hyperosmolar nonketotic state has been known to have a high mortality, and even now, despite this high mortality, only a few studies of this disease have been performed. We studied the prognostic factors for the hyperosmolar nonketotic state. Methods: We retrospectively studied the cases of 40 patients who were in a hypersomolar nonketotic state when admitted to Sanggye Paik Hospital during the 6-year Period from 1995 through 2000. We divided the hyperosmolar nonketotic patients into two groups, the complete recovery group and the incomplete recovery group, and compared the clinical features, the laboratory findings, and the precipitating factors between two groups. Results: 1) A total of 40 patients were studied: 24 in the complete recovery group and 16 patients in the incomplete recovery group. The mortality rate was 32.5%. 2) No significant statistical difference existed among the clinical features of the two groups, except for the sex(p<0.01). 3) Among the laboratory findings of both groups, analysis revealed that the effective osmolarity was significantly higher among those in the incomplete recovery group(p<0.01). Serum sodium concentration was also significantly higher among those in the incomplete recovery group(p<0.01). Serum creatinine was also significantly higher among those in the incomplete recovery group(p<0.05). Serum bicarbonate concentration, on the other hand, was significantly lower among those in that group(p<0.05).4) Infection was identified as the most common precipitating factor(62.5%). Among the precipitating factors of the two groups, there were significant statistical difference in pneumonia, UTI, and inappropriate glucose control. 5) A significant statistical difference existed among the initial level of consciousness of both groups(p<0.05). 6) The only significant independent factor responsible for prognosis of nonketotic hyperosmolar state patients was the sex. Conclusion: The sex was only significant independent prognostic factor of nonketotic hyperosmolar state patients.

만성 변비환자에서 발생한 자발성 후복막기종 1예

이상래,류석용,김홍용 대한응급의학회 2002 대한응급의학회지 Vol.13 No.4

The pneumoretroperitoneum has many etiologies. These range from the clinically insignificant to the potentially fatal, if not recognized promptly. Spontaneous pneumoretroperitoneum can develope from ulcerative colitis, colonic diverticulitis, or duodenal ulcer perforation. It can be associated with pneumothorax, pneumomediastinum, respiratory tract rupture, etc. An isolated pneumoretroperitoneum are a more obscure symptom than a pneumoperitoneum. Mostly, the diagnosis of retroperitoneal air depends of radiologic methods, such as simple X-ray, ultrasound (US), or computerized tomography (CT) measurements. In this case, we diagnosed a pneumoretroperitoneum from CT and found that if caused the perforation of the colon spontaneously, without any underlying diseases, due to chronic constipation without underlying diseases

지식 베이스의 에이젠트화에 의한 지식 미디어 시스템에 관한 연구

조정래,손영수,배상현 조선대학교 기초과학연구소 1996 自然科學硏究 Vol.19 No.1

The knowledge of the specialized fields has been changed rapidly in the both side of quantity and quality. A hyper media as a knowledge based system is so fixed in the linked media in mutual that we couldn't tell it information provision with the view of user. In this paper, we propose the way of offering intellectual and flexible information which is same with demand in the side of user, selecting, searching and composing the hypertext at the point of user's view through the design of knowledge media system. three concepts is used in order to challenge the knowledge media system : special document, agent system and ontology. The special document is a knowledge using special fields. The agent system is a homogeneous controller that operates on and application to ensure that its activities are coordinated with those of the others within the community, providing a uniform control mechanism. The last 3th concept, ontology is a language for knowledgement, which is a message exchanged among agents to ensure the proper interaction among them. The combination of these three concepts is used designed the prototype of knowledge media system.

비정질 Fe-B-Si-Al계 합금의 자기적 성질에 관한 연구

이상래 釜山大學校生産技術硏究所 1999 生産技術硏究所論文集 Vol.56 No.-

급냉응고된 Fe81-xB13Si6Alx(0≤x≤10)합금의 비정질 형성능, 열적 성질 및 자기적 성질이 조사되었다. Fe 대신에 Al을 치환하면 비정질상의 결정화시 첫 번째 결정피이크와 두 번째 결정피이크의 온도간격이 증가하였는데, 이것은 다음의 열처리에 의해서 나노결정질에 비정질 합금의 제조가능성을 시사한다. 모든 합금조성에서 가장 좋은 자기적 성질을 625K에서 1시간동안안 시효함으로서 얻을 수 있었다. Al의 첨가는 보자력을 증가시키고 자속밀도는 가소시켰다. 모든 조성에서 철손은 거의 비슷하고 시효온도의 증가와 함께 급격하게 감소하였다. Amorphous Fe81-xB13Si6Alx(0≤x≤10) alloys have been formed and their thermal stability and magnetic properties have also been investigated. Substitution of Al for Fe is found to increase the difference of the 1st peak temperature for crystallization of smorphous phase(Tx1) and 2nd ones(Tx2), ΔTx(=Tx2-Tx1), indicating the possibility for the formation of nanocrystalline amorphous alloy. The best softmagnetic properties was obtained by aging at 625K for 1hr all the alloys. The addition of Al increased the coercivity. The core loss in all compositions is nearly similar and rapidly decreased with ageing temperatures.

증기발생기 세관에서 결함 선단 변화에 따른 와전류 결함신호의 분석

송성진,김의래,김창환,김영환 성균관대학교 기계기술연구소 2001 성균관대학교 논문집 기계기술편 Vol.4 No.1

Eddy current signals from flaws with tip variation in steam generator tubes were analyzed. Using finite element models, abundant flaw signals from two dimensional axisymmetric flaws will tip variation were generated. Features of ECT signal were defined and extracted, and sensitive features for flaw classification and sifting were selected. Two neural networks were employed for flaw characterization and sizing. The intercept vector was introduced as a new feature, and its usefulness was discussed.

CATV 망에서의 고속 DATA 서비스를 위한 적정 셀 규모에 관한 연구

정래성,구대성,김형준,김필중,김종빈 조선대학교 전자정보통신연구소 2001 電子情報通信硏究所論文誌 Vol.4 No.2

Recently the surrounding of data communication industry has been changing through the rapid growth of the information technology, which has been sparked by the convergence of computer and optical fiber technology. This phenomenon requires broadband network to transmit video, audio and data at once. Multimedia and broadband services are provided widely over the Internet. The traditional telephone companies, CATV operators, and Internet service providers are all rushing to provide integrated services over their infra-structures. Among them, CATV seems to be the most promising from an economic perspective, because CATV infrastructure is already in place in a majority of homes and can deliver broadband service without requiring costly upgrade of the existing CATV systems. In this paper, analysis the problem of data services over CATV network, suggest size the proper cell for the high speed data services over CATV network.

韓牛 一胃內容物의 飼料化를 위한 硏究 : 第Ⅱ報. 育鷄(Shaver stabro)의 增體에 미치는 影響 Ⅱ. A Study on the Body weight gain of the shaver stabro

朴成振,趙永來 진주산업대학교 1978 論文集 Vol.16 No.-

During the period of 35 days from June 4, 1977 to July 8, 1977, an experiment had been Carried out at Jin-Ju Agricultural and foresty Junier Technical collage to compare effects on the feed consumption, body gain and efficiency of feed utilization of growing broile chicks of shaver stabro that fed with the experimental ration. In the experiment. 280 heads of 23 days-old shave stabro were divided into 4 lots:leels of 0%(the control), 3%(T_1), 6%(T_2) and 9%(T_3) dried Koran cattle in rumen Organivsems werem ixed with the experimental ration. The results obtained are summarized as follows : 1. Chemical composition of dried Korean Cattle in Rumen Organisems was 10.92% Moiture, 16.23% crude protein, 4.97% crude fat, 17.84% crude fiber, 6.30% Crude ash and 43.24 Nitrogen free extracts. 2. Although there was no statistical difference in the Weight gain among treatments, the body Weight gain of T_1 lot was higher than that of the other lots. 3. In the Feed intake, no significant difference was obtained among treatments, but the feed intake of T_1 lot was increased much more than that of the other lots. 4. In the feed efficiency no signiticant difference was obtained among treatment, but T_1 lot was heigher than that of other treat ment lots.

腦動脈瘤 患者에서 血淸 LDL, Total cholesterol, Phospholipids 및 HDL cholesterol 의 動態

黃性守,朴淵默,金乘來 慶北大學校 醫科大學 1980 慶北醫大誌 Vol.21 No.2

지주막하 출혈을 일으킨 뇌동맥류 환자에서 혈청 LDL, total cholesterol, phospholipids 및 HDL cholesterol치를 분석, 정량하여 정상 대조군과 비교, 검토하였다. 뇌동맥류 환자에서 혈청 LDL과 total cholesterol의 평균치(mean±SE)는 각각 286±21㎎/㎗ 및 215±10㎎/㎗로써 대조군에 비하여 상승치를 나타내었으며 내경동맥류에서 현저 하였고 신경학적 장애 소견이 심한 군에서 현저히 상승되어 있었다. 그리고 혈청 phospholipids의 평균치는 149±8㎎/㎗로써 신경학적 장애 소견에 관계없이 대조군에 비해 현저히 감소되었고 내경동맥류와 중대뇌동맥류에서 현저하였다. 뇌동맥류 환자에서 혈청 HDL cholesterol의 평균치는 29±2㎎/㎗, total cholesterol에 대한 HDL cholesterol의 백분비 평균치는 15.1%로써 대조군에 비해 차이 있는 변화는 없었다. On the intracranial aneurysmal patients with subarachnoid homorrhage, serum lipid and lipoprotein values, including LDL, total cholesterol, phospholipids and HDL cholesterol level, were studied. Mean values (mean±SE) of serum LDL and total cholesterol level in aneurysmal group were 286±21㎎/㎗ and 215±10 ㎎/㎗ respectively, showing higher level than those from normal control group, and the levels were more elevated in aneurysmal patients of internal carotid artery and aneurymal patients with severe neurological disorders such as grade 3,4 according to Botterell's classification. In aneurysmal group, serum phospholipids level was decreased remarkably by 149±8 ㎎/㎗ in mean value, compared to control group, and it showed no relationship with neurological deficits. However, it was decreased more in patients with aneurysm of internal carotid and middle cerebral artery. In aneurysmal group, mean value of serum HDL cholesterol level was 29±2㎎/㎗ with percent of HDL cholesterol to total cholesterol, 15.1%. The findings showed no significant difference between aneurysmal and control group.

치환 페나실 벤젠 슬포네이트와 N, N-디메틸 아닐린 사이의 속도론적 연구

홍성완,한광래,이준경 又石大學校 1990 論文集 Vol.12 No.-

Kinetic studies of nucleophilic substitution reactions of phenacyl. benzeneslfonates(PBS) with N, N-dimethyl anilines(DMA) were conducted by conductometric method. Hammett and Broensted values were determined, in order to examine the transition state variations caused by changes in nucleophiles, substituents and indicated a relatively advanced bond-formation in the transition state. Application of potential energy surface(PES) and quantum mechanical(QM) models of transition state characterization lead us to conclude that the reaction proceeds via associative S_N2 mechanism. It was found that reactivity-selectivity principle(RSP) and Bell-Evans principle(BEP) held within the DMA series and hence constituted a good example of a thermodynamically controlled reaction series but are violated between two different reaction series with DMA and aniline.