• Journal of Veterinary Clinics
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• v.16 no.1
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• pp.222-225
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• 1999

난소를 제거한 57개월령의 golden retrieve개가 심한 배뇨실금을 나타내며 양측성 요관이소증으로, 좌측에는 통상적인 새요관개구술(neoureterostomy)로 방광삼각지대에 새로운 요관개구부를 만들었고 방광목에 위치한 우측요관의 개구부는 그 부위를 확장만 시킴으로써 수술 후 배뇨실금 증상을 교정할 수 있었다. 방광목확장개구수술방법은 본 증례에서 처음으로 개에 시도되어 좋은 수술결과를 나타내었고 요관개구부가 방광목인 이소증 치료에 효과가 있을 것으로 생각되며 지속적인 임상적용과 관찰이 요구된다.

• Journal of Chest Surgery
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• v.29 no.6
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• pp.669-671
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• 1996

The dilated haustra of colon after esophagocolostomy was a rare complications, but it may be extremely dangerous because of the potential for perforation of the thin- walled esophageal substitute. Therefore a prompt surgical correction of the lesion should be done. The conventional surgical exploration and resection of the lesion site was very difficult. The use of the ends GIA to eliminate the dilated haustra of colon was simple and safe method and the postoperative results were good. We report a case of experience and methods.

• Journal of Veterinary Clinics
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• v.26 no.4
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• pp.331-335
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• 2009

This paper was performed to investigate the propensity of the diameter of maximum distended urethra from urethra to os penis in mature male dogs of 25 male dogs of different breeds. The measured sites of urethras were divided into 7 regions, i.e. prostate, membrane, isthmus, perineum, scrotum, prescrotum and os penis. By using the inflated balloon catheter filled with contrast medium, the maximum diameter of the distended urethras of each region was recorded and compared among regions. The mean diameter of the lumen from the prostatic urethra to the os penis urethra was gradually narrowed except for the isthmus portion, with a sense of resistance for retraction being noted at the level of ischiatic arch in 22 dogs. Proposed results from this should be utilized as a predictor of a treatment plan for the removal of urethroliths using an urohydropropulsion.

• Current Industrial and Technological Trends in Aerospace
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• v.9 no.1
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• pp.139-149
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• 2011

The combustion chamber and nozzle of a liquid rocket engine need thermal protection against the high temperature combustion gas. The nozzle extension of a high-altitude engine also has to be compatible with high temperature environment and several kinds of cooling methods including gas film cooling, ablative cooling and radiative cooling are used. Especially for an upper-stage nozzle extension having a large expansion ratio, the weight impact on the launcher performance is crucial and it necessitated the development of light-weight refractory material. The present survey on the nozzle extension materials employed in the liquid rocket engines of USA, Russia and European Union has revealed a trend that the heavier metals like stainless steels and titanium alloys are being substituted with light weight carbon fiber or ceramic matrix composite materials.

• 한국도로학회:학술대회논문집
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• 2005.03a
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• pp.129-134
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• 2005

• Journal of Veterinary Clinics
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• v.31 no.3
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• pp.216-219
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• 2014

An 1-year-old, female, mixed-breed dog weighing 17 kg was referred for abrupt collapse. She had remarkable hypocalcemia and hyperphosphatemia, and survey radiographs revealed a severe gas-filled intestine. Treatment with serial injections of calcium gluconate was initiated promptly and most of the gastrointestinal distension disappeared after 4 h. However, the clinical signs were not resolved completely. The serum intact parathyroid hormone concentration was not elevated in the context of hypocalcemia, which suggested primary hypoparathyroidism. The clinical signs and laboratory abnormalities in the patient were resolved completely 3 days after administration of calcium gluconate and calcitriol. This case describes the unique presentation of severe gastrointestinal distension in a dog diagnosed with primary hypoparathyroidism.

• Bulletin of the Society of Naval Architects of Korea
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• v.30 no.4
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• pp.20-26
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• 1993

본 연구는 CSDP-선체 CAD 시스템 개발'4' 세부과제의 일환으로 수행되었으며 세부과제는 선체 구조 설계 기능을 전산화하기 위한 목표를 설정하고 CSDP 연구사업의 첫해년도부터 지금까지 4년간 수행하였다. 1차년도('88년∼'89년)에는 그 당시까지 단편적으로 개발된 구조설계 프로그 램을 통합하여 살물선 중앙부에 대해 선급규정에 의한 종강도 부재의 배치 및 치수결정 프로그 램을 개발하였다. 2차년도('89년∼'90년)에는 1차년도의 연구결과를 힁부재 및 힁격벽 부재까지 확장하여 살물선 중앙부의 종강도 부재, 힁격벽 부재의 배치 및 치수결정 프로그램을 개발하여 살물선 중앙부의 구조설계를 지원하는 프로그램을 완성하였다. 3차년도('91년∼'92년)에는, 이 중선각 유조선에 대한 관심이 고조되고 있는 바, 동 세부과제에서도 조선소의 요구에 따라 대상 선박을 살물선에서 이중선각 유조선으로 확장하고, 기존의batch방식을 대화식으로 교체하여 선급규정(DnV, L1oyd)에 의한 종강도 부재의 설계 기능과, 간이 해석에 의한 대화식 이중선각 유조선 중앙부의 구조배치 및 치수결정 기능을 갖는 프로그램(ISSMID_T)을 개발하였다. 당해 연도인 4차년도에는, 3차년도까지 개발한 프로그램의 기능, 성능을 보완 확장하였고, 또한 조선 전용 선체 CAD시스템(AUTOKON)과의 Interface도 삼성중공업과 공동으로 개발하였다.

• Journal of the Institute of Electronics and Information Engineers
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• v.53 no.2
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• pp.70-75
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• 2016

This paper proposes the constructing method of effective multiplier based on the finite fields in case of P=2. The proposed multiplier is constructed by polynomial arithmetic part, mod F(${\alpha}$) part and modular arithmetic part. Also, each arithmetic parts can extend according to m because of it have modular structure, and it is adopted VLSI because of use AND gate and XOR gate only. The proposed multiplier is more compact, regularity, normalization and extensibility compare with earlier multiplier. Also, it is able to apply several fields in recent hot issue IoT configuration.

• Restorative Dentistry and Endodontics
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• v.30 no.1
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• pp.31-37
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• 2005

The aim of this study was to evaluate the effectiveness of sealer placement in simulated root canal extensions. Forty resin blocks were attained from the Endo-training Bloc. In each block. The simulated root canal was made with $\#20$, 80taper GT file. After each block was longitudinally split into two halves, a standardized groove was prepared on one canal wall of two halves to simulate the canal extensions with various irregularities. The two halves of each block were assembled and all simulated root canals were obturated by single cone method with AH26 sealer. Four different methods of sealer placement were used: group A, $\#20$ K-file; group B, ultrasonic file; group C, lentulo spiral; group D, EZ-Fill bi-directional spiral. All obturated blocks were stored in $100\%$ humidity at $37^{\circ}C$ for 1 week, Using a low speed saw, each block was sectioned horizontally. Images of the sections were taken using a stereomicroscope at $\times$ 30 magnification and a digital camera. The amount of the sealer in the groove was evaluated using a scoring system, a higher score indicated better sealing effectiveness. The data was statistically analysed by Fisher's Exact Test. The sealing score was the lowest, specially at the middle area of canal extensions in group A, and that was statistically significant difference from other groups. In conclusion, the ultrasonic file, lentulo spiral and EZ-Fill bi-directional spiral were effective methods of sealer placement in simulated canal extensions. The K file was the least effective method, specially at the middle area of canal extensions.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• v.29 no.1
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• pp.237-243
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• 2005

To design ship channel is one of important factors for planning and developing a port. Bends in channel should be avoided if possible, but the channel should be widened, if channel bend is unavoided, to account widened path of a ship in bend for the safe passage of a ship. In this study, Variable Bumper Area(VBA) model is applied to determine ship channel width in bend and channel-bend geometry. The result of this study shows that the width of a channel in bend may be designed as wide as the width in straight lane provided the angle of deflection is less than 30 degree, should be widened for 60degree deflection based on the length of the largest ship using the channel and the angle of deflection.