• Korean Journal of Veterinary Research
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• v.41 no.3
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• pp.447-451
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• 2001

A 6-week-old female cocker spaniel, with a history of abasia astasia, was referred to the Department of Laboratory Animal Medicine, Medical Research Center, Yonsei University College of Medicine on February 23, 2000. The ribs inclined downwards with a sharp slope on both lateral sides of the thorax. The animal was diagnosed as pectus excavatum. She showed no signs of dyspnea, dyschezia, or dysuria. There was no heart murmur or sign of neural disease. For rehabilitation treatment, she was given physical exercise therapy 2 to 3 times a day by bending and stretching each articulation of the hind limbs and pressing the costochondral junction in and upward with both hands placed on each lateral side. After a month of therapy, she was able to stand up and walk. The therapy continued and resulted in the slight reformation of a round thoracic wall. The flattened rib cartilages grew more round by palpation and the thoracic cavity distended. Rehabilitation therapy yielded good results, enabling the subject to walk and run normally, as the thoracic cavity was distended by the rounded rib junction.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.1
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• pp.713-719
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• 2015

The change in induced voltage according to the relationship of ground connection between the aluminum sheath layer and a conductor pair in a general telecommunication cable is analyzed. When a measurement is practiced under the condition of separated sheath grounds with an averaged ground resistance of $42.6{\Omega}$, the induced voltage decreases 10 % to the induced voltage without sheath grounds. The induced voltage decreases approximately 50 % in the case of a one-sided common ground and decreases by more than 90 % in the case of a both-sided common ground. This experimental result is similar to the values calculated using the methods of the ITU Directives. In addition, according to a comparison analysis utilizing this ITU method, the measurement error range will be below 10 % in the state of ground resistance of central office less than $10{\Omega}$ and for the terminal side with $100{\Omega}$ less or more.

• Clinical and Experimental Pediatrics
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• v.46 no.12
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• pp.1279-1282
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• 2003

Neuroblastoma is the most common intraabdominal malignant tumor of childhood, with 40% arising from the adrenal gland. Bilateral adrenal involvement from synchronous development or metastatic spread of tumor is rarely seen in children with neuroblastoma. The patient was born with a spontaneous vaginal delivery. Birth weight was 3,200 g. Fetal ultrasonography showed a left adrenal cystic mass. At two weeks of age, she was admitted due to a massive abdominal distension and tachypnea. Percutaneous ultrasonography guided biopsy of the left adrenal mass was performed. The result of the biopsy was neuroblastoma. Vincristine and cyclophosphamide were administerd intravenously and 450 cGy of irradiation was added. Left adrenalectomy was accomplished and postoperative course was uneventful. The patient received cancer chemotherapy with a combination of carboplatin, ifosfamide and VP-16 and is now being followed up for three months. We have experienced a case of congenital bilateral neuroblastoma and report the case with brief review of related literatures.

• The korean journal of orthodontics
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• v.40 no.1
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• pp.50-60
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• 2010

The purpose of this article was to evaluate the effects of a new upper molar distalization system, the Frog Appliance, on dentofacial structures in a Class II, division 1 patient. An 11-year-old girl was referred to our clinic for orthodontic treatment. She had a mild skeletal Class II malocclusion with Class II molar and canine relationship on both sides. The treatment plan included distalization of the upper first molars bilaterally followed by full fixed appliance therapy. For the upper molar distalization, a new system, the Frog Appliance, was constructed and applied. Lateral cephalometric radiographs were used to evaluate the treatment results. Distalization of the upper first molars was achieved in four months successfully, and Class I molar relationship was obtained. Total treatment time was 16 months. According to the results of the cephalometric evaluation, a nearly bodily distal molar movement with a slight anchorage loss was attained. In conclusion, the Frog Appliance was found to be a simple, ef ective, non-invasive, and compliance-free intraoral distalization appliance for achieving bilateral molar distalization.

• Tuberculosis and Respiratory Diseases
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• v.42 no.1
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• pp.93-98
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• 1995

Cryptococcosis is a systemic infection caused by the yeast-like fungus Cryptococcus neoformans. Respiratory tract is the usual portal of infection but relatively few cases of pulmonary cryptococcosis have been reported. Recently the incidence of the disease are increasing because the perception to seek the disease is increasing and immunocompromised hosts are more widespread with introduction of immune-suppressants, steroids and advent of AIDS. Because of nonspecific pattern of clinical manifestation, radiologic findings, differentiating the other diseases is essential and it needs fungal culture and biopsy. We describe a patient in the state of bilateral adrenalectomy due to bilateral ACTH-independent macronodular hyperplasia who developed pulmonary cryptococcosis and was later infected with pulmonary tuberculosis.

• The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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• v.29 no.4
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• pp.218-231
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• 2016

Objectives : To report the patient bilateral facial palsy, because it is unusual. Methods : One patient with bilateral facial palsy was selected. Herbal medicine(Cheunggansoyosan, bubidongyeom-2) was administered and acupuncture was applied for twice a day in 73 days. Facial function was evaluated by House-Brackmann scale, Yanagihara's scale and Standardization of muscular paralysis. Results : Cheunggansoyosan, bubidongyeom-2 and acupuncture treatment improved facial function after 73 days of treatment. Adverse effects were not reported. Conclusions : This study shows that the Korean medicine treatment was effective in improving bilateral facial palsy.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.16 no.4
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• pp.64-72
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• 2002

The use of linear DC motor is spreaded according to industrial development. This study was objected to study the analysis of double side excitation LDM with moving magnet type. In this LDM structure, the mover made use of permanent magnet with six pieces so as to large thrust, the stator was bedded for the multi separated type winding to repress the i개n saturation. Also, double side excitation winding is suppressed to thrust ripple with stratification to zigzag type and designed to production for static thrust. Then it is important to ratio of permanent magnet to winding width at multi separate, this paper analyzed to separate to three pieces of 1:1, 1:0.84 and 1:0.5 with width ratio. The analysis method calculated the parameter useful for permeance and magnetic resistance more than FEM of complicated numerical value analysis. Through manufactured experiment system, measurement result of thrust was almost acquired to constant thrust for all displacement.

• Proceedings of the Korea Water Resources Association Conference
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• 2011.05a
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• pp.143-143
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• 2011

4대강 살리기 사업에서 국가하천 주요 구간에 대규모 보가 건설되고 있다. 이로 인해 치수 및 하천환경에 많은 문제점이 야기될 수 있으며, 발생 가능한 하천관리의 문제점을 최소화하기 위해서는 하천정비에 따른 수리학적 영향을 검토할 필요가 있다. 보의 설치는 유지유량 및 수심 확보의 목적을 지니고 있지만, 기존 하천에 설치된 보는 대부분 고정보로서 흐름의 정체를 유발시키는 단점이 있다. 최근에는 가동보가 설치되어 일정 이상의 초과 유량 및 수위를 조절할 수 있도록 탄력적인 보 운영이 이루어지고 있다. 본 연구에서는 낙동강 본류에 건설 중인 강정보 설치지점 직상 하류 구간에 대하여 가동보의 설치 및 운영에 따른 보주변의 흐름특성을 RMA2와 FLOW-3D를 이용하여 모의하였다. 2개의 수문으로 구성되어 있는 강정보의 수문 운영을 2년 빈도 및 100년 빈도 홍수량에 대하여 좌측 또는 우측 단일수문 완전개방 및 부분개방, 양측 수문의 완전개방 및 부분개방에 따른 보 상류단 수위의 변화 및 하류단에 형성되는 주흐름의 변화를 분석하였다. 2년 빈도 홍수량에서의 가동보 지점의 유속이 100년 빈도 홍수량에 대한 가동보 지점의 유속보다 크게 발생하였다. 양측 수문을 완전히 개방하였을 때 주흐름이 우안방향으로 휘는 현상이 발생하였으며, 우측 수문 단일개방에서 주흐름의 우측 휨 현상이 뚜렷이 나타나고 있어 양측 수문 개방에서의 주흐름이 우측 수문에서 발생되는 흐름에 의해 지배되고 있는 것으로 판단된다. 100년 빈도 홍수량에 대한 모의에서 수문 개방방식에 따른 보 상류부의 홍수위 변화가 크게 나타나지 않았으며, 2년 빈도 홍수량에서는 수문 개방 방식에 대한 보상류의 수위가 차이를 보였다. 가동보의 $30^{\circ}\sim60^{\circ}$ 부분개방에 대한 모의결과에서는 부분개방의 정도가 커짐에 따라 수문 지점에서의 유속이 크게 발생하였다.

• Clinical and Experimental Pediatrics
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• v.51 no.12
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• pp.1355-1358
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• 2008

Wilms' tumor, aniridia, genitourinary anomalies, and mental retardation (WAGR) syndrome is caused by deletion of chromosome 11p13, including the Wilms' tumor (WT1) and aniridia gene (PAX6) loci. Here, we report the first case of WAGR syndrome in Korea; the patient was a 2-year-old girl with bilateral aniridia from birth who presented with abdominal distention and mental retardation. Cytogenetically, she had deletion of chromosome 11p11.2-13. Bilateral Wilms' tumors were successfully treated by chemotherapy and surgery. She has been tumor-free for 19 months off chemotherapy with preserved renal function.

• Journal of Chest Surgery
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• v.35 no.2
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• pp.149-152
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• 2002

We report successful application of dual trachcobronchial stcnt to the diffuse tracheal stenosis. An one-month-old boy was transferred to the emergency room due to tachypnea and respiratory difficulty with COB retention. Preoperative computed tomography revealed pulmonary artery sling with diffuse tracheal stenosis. We found that the diameter of the both main bronchus was less than 3mm and the trachea was a complete ring. We divided the left pulmonary artery and implanted it to the main pulmonary artery under cardiopulmonary bypass. After that, tracheoplasty was performed with autologous pericardium. However, after the initial measures, CO2 retention and respiratory difficulty persisted due to the granulation tissue and dynamic obstruction of the airway ensued by the overlying pericardial flap. Therefore, we decided to apply a single tracheal stunt. After the insertion of tracheal stent, residual stenosis of the both main bronchus opening continued to cause respiratory difficulty Finally we applied dual tracheobronchial stent and resolved the airway obstruction.