• The Journal of Pediatrics of Korean Medicine
• /
• v.20 no.1
• /
• pp.195-206
• /
• 2006

Objective : The purpose of this study is to investigate the current trends of children patients with convulsion. Children convulsion patients who visited the Pediatric Department of the Oriental Medicine hospital were investigated and analyzed. Method : 90 children complaining convulsion who visited the Department of Pediatrics of Kyung Hee University Oriental Medicine Hospital, between March, 2005 and October 2005 were statistically analyzed. Results : The percentage of boys outnumbered the girls. The percentage of children under the age of 5 18 66.7%. The percentage of children with family history is 43%. The majority of children had visited the hospital twice (n=21). As for intercurrent diseases, there were URI, C.P., ADHD, CHD, sequela of encephalitis and etc. As for the result of EEG examinations, 25 children were normal and 18 were abnormal. As for the appearance of seizures, Tonic-Clonic seizure was the most common seizure among the children (n=13). As for the type of convulsion, simple febrile convulsion was the most common (n=35). As for the curative effect. the percentage of children who showed improvement to treatment was 41.2%. Jangdambosintang, sunbangpaedoktang, gamichodeungeunm, gamichungeumchowitang and etc were the most frequently prescribed medicines.

• Korean Journal of Head & Neck Oncology
• /
• v.33 no.1
• /
• pp.85-89
• /
• 2017

A 62-year-old female patient had goiter for twenty years. She visited out-patient clinic with a hoarse voice and intermittent breathing difficulties. About protruding 15cm sized mass located the anterior neck and right vocal cord paralysis was observed. Preoperative CT scan was strongly suspected of thyroid gland cancer and cervical lymph node metastasis. Therefore, fine needle aspiration test was performed and surgical treatment was planned with the histopathologic results (papillary thyroid carcinoma). Surgery was performed with total thyroidectomy, bilateral cervical lymph node dissection, and right selective nodal lymph node dissection (level II-V). During operation right thyroid seemed to be adherent to surrounding tissue and the blood vessels were extremely engorged. There was hypotensive crisis because of intraoperative excessive bleeding. However it was managed by repetitive transfusion. The operation was completed without abnormalities. She underwent 4 times of bleeding control operation due to postoperative bleeding. After complications were improved, we are currently undergoing out-patient follow up without morbidity.

• Journal of The Korean Society of Inherited Metabolic disease
• /
• v.11 no.1
• /
• pp.106-109
• /
• 2011

MCG는 3-methylcrotonyl-CoA의 결핍으로 발생하는 선천성 leucine 대사 장애이다. 무증상에서 간질지속증 등의 다양한 임상양상을 보이며 주로 신생아대사이상선별검사에서 의심되어, 소변 유기산 검사를 통해 3- hydroxyisovaleric acid의 증가의 소견이 보인다. 치료는 leucine 제한 식이와 L-carnitine의 복용 등의 식이요법이 있다. 서울아산병원에서 MCG로 확진된 9가계 11명의 환자를 대상으로 임상상과 분자 유전학적 특성을 조사하였다. 9명은 신생아 대사이상검사로 발견되었으며, 나머지 2명은 가족검사를 통해서 진단되었다. 총 2-10세($2.6{\pm}1.96$년)까지의 관찰 기간 동안 모든 환자는 정상 발달을 보였으며, 신경학적 이상이나 대사불균형의 이상소견은 보이지 않았다. 총 18개의 대립유전자 중 17개에서 돌연변이를 발견하였으며, p.D280Y 돌연변이가 66.7%의 대립유전자에서 확인되어, 한국인 MCG에서 흔한 돌연변이임을 알 수 있었다. 또한 p.S342K, p.P459S, p.552S, p.Q496H, p.T556A 등 대부분의 돌연변이가 이전에 보고된 바가 없던 돌연변이로 한국인 MCG환자의 유전학적 특성이 다른 민족과 다름을 시사한다.

• Proceeding of EDISON Challenge
• /
• 2017.03a
• /
• pp.204-215
• /
• 2017

Unlike existing pneumatic tire, NPT(Non-Pneumatic Tire) is a tire replacing air pressure with spokes. NPT has no problem of punk which pneumatic tire has and doesn't need to maintain air pressure. Also it can be used in space where temperature change sharply. In this regard, NPT are attracting attention as next-generation wheels. For optimizing Honeycomb structure, we applied the load to various Honeycomb structure which forms NPT, performed FEM(finite element analysis) using Edison and compared each results.

• Journal of Korea Foundry Society
• /
• v.23 no.5
• /
• pp.268-275
• /
• 2003

The mechanism of the hydrogen gas pore formation was investigated in Lost Foam Casting of Al-alloy by reduced pressure test and real casting. The hydrogen gas pick-up was affected by the formed gas during the decomposition of polystyrene in addition to the liquid product. It depended on pouring temperature and a proper temperature of metal front gave the minimum hydrogen pick-up. At a low pouring temperature, the hydrogen went into the melt mainly from entrapped liquid product of polystyrene but pores were formed from the gas as well as the liquid product at a high pouring temperature. The mold flask evacuation down to 710torr decreased the gas porosity down by around 0.4% vol%. The entrapped decomposition product of polystyrene in the melt was observed through the visualization of filling behavior of Al alloy-melt with the high speed camera.

• The Journal of Pediatrics of Korean Medicine
• /
• v.15 no.1
• /
• pp.155-164
• /
• 2001

Bedwetting is a common symptom with many cause. Noctural enuresis is the most frequent cause of bedwetting and is recognized by the absence of other urinary symptoms or sign of disease. The author treated nocturnal enuresis in children who visited Nocturnal Enuresis Clinic in KOMC(Kyunghee Orientla Medical Center, Seoul, Korea) by Radix Ephedrae. The result were obtained as follows: 1. The grade of nocturnal enuresis in children treated by Radix Ephedrae was significantly decreased. (p<0.01) 2. There is no significant correlation between the effect of Radix Ephedrae and the age of children. 3. There is no significant correlation between the effect of Radix Ephedrae and the initial grade of nocturnal enuresis. According to above result, Radix Ephedrae is considered to be efficacious against nocturnal enuresis in children.

• Journal of the Korean Society of Manufacturing Process Engineers
• /
• v.17 no.1
• /
• pp.95-100
• /
• 2018

This study has focused on the weld-line and birefringence reduction of a plastic optic lens using over and CAE analysis in injection compression molding. A concave lens, which has a thin thickness in the center and a large difference in thickness between the center and the periphery, often causes weld-line defects during injection molding. CAE analysis has been applied to optimize the overflow design in order to reduce the weld-line defects and the polarization defects. To reduce the weld line and birefringence defects, overflow design and application using CAE analysis show that the measured birefringence values of the specimens before the overflow application were 46.8nm and 36.9nm, and the values after the over-flow application were 13.6nm and 14.0nm. From the experimental results, it is confirmed that birefringence is greatly improved when overflow is applied.

• Korean Journal of Materials Research
• /
• v.3 no.5
• /
• pp.514-520
• /
• 1993

In this paper the cure cycle of carbon fiber/phenolic resin was investigated by the Taguchi Method in an experimental design. Experiments were systematically performed using $L_{18}(2^1 \times 3_7)$ orthorgonal array table of the experimental design. In the experimental design, eight compression molding parameters (heating rate, pressing temperature, pressing rate, molding pressure, curing temperature, dwell time at curing temperature, cooling rate and degassing) were considered and the effects of the parameters on the flexural strength and the apparent porosity of carbon fiber/phenolic composites were investigated. The analysis of variance for the experimental results indicated that molding pressure and curing temperature are the most significant parmeters in the flexural strength and the apparent porosity of carbon fiber/phenolic resin composites, respectively.

• Proceedings of the KIEE Conference
• /
• 2003.07a
• /
• pp.587-589
• /
• 2003

국내 전력 산업은 과거 수직통합적 독점구조에서 부문별 기능분할 및 경쟁도입을 점진적으로 추진하고 있으며 먼저 발전회사간 경쟁을 도입하기 위하여 한국전력의 발전부문을 6개의 발전회사로 분할 하였다. 2004년부터는 본격적으로 양방향 도매전력시장을 도입하여 운영할 계획에 있다. 도매전력시장의 도입으로 발생할 수 있는 가장 큰 시장 위험요소로는 시장가격의 수준 및 변동성에 대한 불확실성을 들 수 있다. 이는 시장참여자 모두에게 위험요소가 될 수 있으며 이를 위하여 정부주도하에 경쟁시장 이행기 동안의 과도기적 위험관리 도구를 제공하게 되며 발전회사와 판매회사 사이의 강제적 계약인 베스팅 계약이 포함될 것으로 예상된다. 여러가지의 베스팅 계약 중에서 Two-way 베스팅 계약은 발전회사와 판매회사와의 계약량, 계약가격을 정부 또는 관련기관에서 지정하는 것으로 이러한 Two-way 베스팅 계약은 도매전력시장의 초기에 발전회사의 손실을 최소화하는 역할을 할 것으로 예상되지만 반대로 수익을 제한하는 요소로도 작용할 수 있다. 따라서 본 연구에서는 베스팅 계약 중에서 Two-way 베스팅 계약에 대한 분석을 수행하고 이를 토대로 하여 베스팅 계약 하에서 발전회사의 수익을 최적화 할 수 있는 전략에 대한 연구를 수행하였다.

• Proceedings of the KSME Conference
• /
• 2001.06b
• /
• pp.676-681
• /
• 2001

ABS is a safety device, which adds hydraulic system to the existing brake system to prevent wheel from locking, so we can obtain maximum braking force on driving. The hydraulic system to control braking pressure consists of sol-flow type using solenoid valve, flow control valve or consists of sol-sol type using two solenoid valve. In this paper, the hydraulic system in ABS is composed of sol type using a 3port-2position solenoid valve, and vehicle system is composed of 1/4 vehicle model. And slip ratio is controlled using PWM (Pulse-Width-Modulation) control algorithm. Braking friction coefficient and tracking friction coefficient which are described by slip ratio's function have maximum value when slip ratio has its value from 0.1 to 0.3. And slip ratio is controlled constantly in this boundary value even in the variation of road's condition in some boundary.