혈관질환 정보관리 시스템

김동익,김덕경,허세호,이병붕,김용신,김은숙,문지영,도영수,신성욱,김동수,김만태,진재욱,김용신 대한혈관외과학회 2002 Vascular Specialist International Vol.18 No.1

As medical technology progresses rapidly, there is a rise in the average age along with the Korean dietary lifestyle becoming more westernized, which leads to an increase in the number of vascular disease patients in Korea. Thus, we need to manage the medical information of a disease systematically in order to diagnose and treat constructively. However, since there has been no standardized method of man agement to date, a great deal of information could not be properly utilized nor studied. Therefore, the departments of Cardiology, Radiology and Neurology of Samsung Seoul Hospital recently got together to develop an information management system called the Vascular Data System. This program was developed to be run on win98 O/S, upper Pentium Ⅲ, and upper 128 MB Memory, and its source code is Dephi 4.0. It was configured for the user to set the configurations as well as do a variety of search and analysis. If this program were to be updated continuously, it may be used extensively as well as in various parts of clinical research activities.

분산 제어 시스팀의 정보 교환 방식에 관한 연구

신기명,김용득,이재연 亞洲大學校 1988 論文集 Vol.11 No.-

A protocol on transfering informations between IBM-PC/AT and STC(Self-Tuning Controller) using the RS-485 bus is suggested. The operating algorithm is designed so that the host computer monitors the status of STC and updates parameters depending on the environmental conditions for the various operating modes.

포진후 통증환자에 대한 신경차단술의 효능 : 예비적 보고

신규만,조도상,조용재,김명현,김상진,김성학 이화여자대학교 의과대학 2005 EMJ (Ewha medical journal) Vol.28 No.1

Objectives : Of all the chronic pain syndromes postherpetic neuralgia ranks the most refractory to treatment. The eight postherpetic neuralgia patients have been treated with nerve blocks or neurolysis and obtained good result. We evaluate the therapeutic effect of nerve blocks for postherpetic neuralgia and reviewed the pathology, clinical consideration, treatments and prevention. Materials and Methods : Eight patients with established postherpetic neuralgia enrolled in pain clinic of Mokdong Hospital of Ewha Womans University from March,2004 to December. Average age at 58 and about 63% of patients were over 68 years. Affected area of forehead was two patients. They have been treated with stellate ganglion block (SCB), two times supraorbital and supratrochlear nerves blocks and neurolysis with absolute alcohol. Face affected patient has was one and has been treated with 5 times SGB, 2 times supraorbital and supratrochlear nerves blocks, infraorbital and mental nerves blocks, and then 2times maxillary and mandibular nerves blocks. Chest affected two patients were treated with intercostal nerve blocks. Thoracic wall affected one patient received 2 times thoracic epidural blocks and thoracic nerve block. Scapalur and thoracic wall affected patient has been treated with SGB and 2 times thoracic epidural block. The chest and thoracic wall affected patient received 10 times intercostal blocks,2 times thoracic epidural blocks,3 times thoracic root block and neurolysis of intercostal nerves with absolute alcohol. The injected agents were 1% mepibacaine or 0.25% mercain heavy and methylprednisolone succinated, and at weekly intervals the agents were injected. Results : All patient having been treated with nerve blocks were free of pain at 3-9 months. Conclusion : Although no controlled trial has been done of nerve blocks to treat postherpetic neuralgia, this technique is safe in experienced hands and, if effected, may be repeated. It suggested that local anesthetics and steroid are the effective components in nerve blocks. Data on the relief of acute pain with nerve blocks, however cannot be extrapolated to predict the prevention of postherpetic neuralgia. The best way to prevent herpes zoster becasuse of post herpetic neuralgia is so difficult to treat.

분산 체제에서 최적 부하 균형에 관한 연구

신재선,배용근,박병권 조선대학교 기초과학연구소 1990 自然科學硏究 Vol.13 No.1

The number of loads standing by in each node can be different in the homogeneous type of distributed system. Some nodes have too many loads, while the others have few and so the waiting their own sources can occur. This paper in this case aims that in other to make the best use of sources through the equal distribution of loads between nodes load-balancing is made by using the optimum load-balancing algorithm and that high communication costs which are the hadicaps of dynamic algorithm are reduced to the minimum. Also, this. paper defines the matters to be considered in the design of algorithm, and analyzed and estimated the most suitable load-balancing algorithm through the implementation.

先物의 헤징(hedging)效果 測定과 關聯된 理論的模型 硏究

辛容在 혜전대학 1999 出版文化硏究所論文集 Vol.1 No.-

The key role of futures markets is risk hedging. The most common hedging is one in which the seller(buyer) of the futures contract cancels his delivery commitment by buying(selling) a contract of the same futures prior to delivery. Those who hold portfolio in cash market can manage the systematic risk of their portfolio through an opposing position in future market. This paper examines four major theories of hedging - traditional model, basis arbitrage model, variance minimizing model, utility maximizing model - which deal with a method for measuring hedge ratio and hedging effectiveness. Then I introduce GARCH model to measure the optimal ratio and hedging effectiveness. Variance minimizing model in terms of OLS assumes homogenious variance. While bivariate GARCH assumes conditional heterogenious variance changing over time horizon. Therfore GARCH model is more adequate than OLS model in estimating hedge ratio and hedging effectiveness. Bivariate GARCH(1, 1) presented in this study is as follows : ◁그림참조▷(원문을 참조하세요) where, R_(st), R_(ft) : stock, futures price change, ε_(t) : vector(2*1) of residuals, ψ_(t-1) : informations set at time t-1, H_(t) : (2*2) conditional variance covariance matrix of residuals.

Urapidil, Labetalol의 투여가 기관내 삽관시 심혈관계에 미치는 영향

신용섭,윤석화,손수창,이원형,이정은,황원재,김만수,김영주,김혜자,최세진 충남대학교 의과대학 지역사회의학연구소 1994 충남의대잡지 Vol.21 No.2

We have examined the comparative efficacy of small doses of intravenous urapidil and labetalol in blunting hemodynamic response to endotracheal intubation and surgical incision in 30 patients without cardiovascular diseases. After intravenous urapidil 0.2 mg/kg or labetalol 0.2 mg/kg anesthesia was induced with thiopental 5mg/kg. Endotracheal intubation was facilitated by vecuronium 0.15 mg/kg with priming principle and anesthesia was maintained with enflurane and nitrous oxide in oxygen. Systolic, diastolic and mean arterial pressure and heart rate were measured before administration of the drugs, 5 minute after administration, just prior to endotracheal intubation and 1, 3, 5, 10 minute after intubatin. Also the peak blood pressures and heart rate within 10 minutes after surgical incision were measured. Endotracheal intubation and surgical stimulation were associated with significant increases in blood pressures and heart rate in both urapidil and labetalol group. Comparison of the changes in systolic, diastolic, and mean artrial pressures and heart rate between urapidil and labetalol group showed no significant difference except peak systolic pressure after surgical incision. It is concluded that the pressor response to endotracheal intubation and surgical stimulation are not influenced significantly by urapidil 0.2 mg/kg or labetalol 0.2 mg/kg. However, urapidil and labetalol preloading may be similarly effective in the blunting of the increases in blood pressures with larger doses of the durgs during anesthetic induction.

아토피 피부염(Ⅰ)

신영익,김재홍 한국의학사 1999 診斷과治療 Vol.19 No.5

아토피 피부염(Ⅱ)

신영익,김재홍 한국의학사 1999 診斷과治療 Vol.19 No.6

LPE법으로 작성한 산화물초전도체 Bi₂Sr₂-Ca₁+Cu₂ 막(films) 의 초전도특성

신재수,황선아,이종용,이권재 대전대학교 기초과학연구소 1997 自然科學 Vol.8 No.2

LPE(Liquid press epitaxy)법을 이용하여, Sr과 Ca가 서로 상호 치환된 산화물초전도체 Bi₂Sr₂??Ca₁+x??Cu₂O??(x?=0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6) 막(film)을 작성하여 상호치환 상태와 초전도특성과의 관계를 알아보았다. 작성한 막(film)의 조성비은 융액조성비(x?)와 막(film)속의 조성비(x?)가 비례함을 알 수 있었고, c-축으로 강하게 배향된전형적인 Bi2212상의 단일상(singe-phase)을 보였다. 치환량 x?의 증가에 따라, 임계온도 T??, c-축의 길이, carrier농도 등은 단조로이 감소하고 있음을 알 수 있었다. We investigated the superconductivity of Bi₂Sr₂_Ca₁+x?Cu₂O?+?x?=0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6) films by liquid phase epitaxial method. X-ray diffraction measurements revealed that films were predominantly oriented with the c-axis perpendicular to the substrate surfaces. The zero-resistance temperature and the lattice parameter c linearly decreased with the increase of x?, corresponding to the decrease of the carrier concentration.

아몰퍼스박막의 자기특성(Ⅱ)

신용진,임재근,서강수 明知大學校 産業技術硏究所 1996 産業技術硏究所論文集 Vol.15 No.-

In this paper we prove through the experiments the possibility that Co amorphous magnetic films can be used as high sensibility materials. We fabricate amorphous film of Fe4.7Co74.3Si2B19 by using sputtering mathod at high frequency. Then, we not only measure the magnetic properties of the annealed samples, but also observe the magnetic domain by using an Kerr effect optical microscope. As the result we find that the samples have high sensibility.