• Proceedings of the Korea Water Resources Association Conference
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• 2009.05a
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• pp.560-564
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• 2009

본 연구는 충적하천에 저수로를 유도하기 위한 기법으로 충적하천의 수충부에 수제를 설치하여 침식을 막고 대안측에 사주발생역의 발달을 억제하여 저수로를 유도하는 기법을 제시하였다. 수제는 하천의 흐름을 하도 중앙으로 집중시켜 주운을 위한 일정수심을 확보하는 역할을 하며, 흐름방향과 유속을 제어함으로써 흐름에 의한 제방침식작용을 방지하는 호안 역할을 병행한다. 최근 들어 자연생태계 복원에 대한 관심이 점차 증가함에 따라 하천정비사업에서도 자연친화적인 기법적용에 대한 관심 또한 커지고 있다. 이러한 관점에서 수제는 효과적인 자연친화 정비기법의 하나로 부각되고 있다. 따라서 본 연구에서는 2차원 수리해석 프로그램인 RMA2를 적용하여 만곡부에서 저수로를 합리적으로 유도하는 기법을 제시한다.

• Journal of Korean Neurosurgical Society
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• v.55 no.2
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• pp.96-98
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• 2014

Vascular complications after percutaneous angiography include hematoma, pseudoaneurysm, arteriovenous fistula, thromboembolism, arterial laceration and infection. Hematomas may occur in the groin, thigh, retroperitoneal, intraperitoneal, or abdominal wall. A 54-year-old female underwent percutaneous transfemoral angiography for the evaluation of cerebral aneurysm. Renal subcapsular hematoma developed 3 hours after the procedure. Renal subcapsular hematoma after percutaneous angiography is very rare. We investigated the possible causes of renal subcapsular hematoma. To avoid this rare complication, we need to perform guide-wire passage carefully from the beginning of the procedure under full visual monitoring.

• Journal of Chest Surgery
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• v.29 no.10
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• pp.1157-1159
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• 1996

Atherosclerotic giant aneurysm of the common femoral artery is rare. Because the patients who lose timing of the operation face amputation or death, the surgical treatment must be performed at the proper time. A 72-old man was admitted to the hospital because of a 20-days history of pulsatile growing mass on his left groin. After the diagnosis of giant aneurysm of the common femoral artery by computerized tomography and digital subtraction angiography, an emergent operation was performed. Both deep and superficial femoral arteries were successfully reconstructed with Gore-tex grafts after aneurysmectomy. The pathology of the aneurysm was proved to be atherosclerosis.

• Proceedings of the Korean Society of Agricultural Engineers Conference
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• 2003.10a
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• pp.455-458
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• 2003

A hydraulic scale model test with movable bed was performed to obtain design data for groins to protect the coast in front of the Sang-ri seadike in Sukmodo, located in the Han-river estuary area. The vertical scale of the model is 1/100 and the horizontal scale 1/250 according to Froude similitude. The result of test for original coast and groins showed that the coast in front of the Sang-ri seadike was eroded by tidal current. Three alternatives for the planning of new groins were tested. It is concluded that the alternative B-3 test scheme was the best plan to protect the coast among others.

• Journal of Nutrition and Health
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• v.26 no.4
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• pp.379-389
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• 1993

Several studies have shown that extracts from yellow-green vegetables reveal antitumor activities. In the present study we investigated the effect of phytol in order to elucidate the immunological mechanism of antitumor activity of this substance. The results obtained from the experiment as follows: 1) Phytol showed cytotoxic effect on sarcoma 180 cells in vitro. 2) When phytol was injected into the peritoneal cavity of mice transplanted with sarcoma 180 cells, the average survival time (24.0 days) tended to increase as compared with the nontreated control (19.2 days). 3) When sarcoma 180 cells were injected subcutaneously into the right groin of mice, and then phytol was injected into the peritoneal cavity, the tumor inhibition ratio was 33%. 4) The natural killer(NK) cell activity was significantly augmented by phytol in vitro and in vivo. Similar augmentations of NK cell activity were obtained with culture supernatants of phytol exposed spleen cells and peripheral blood mononuiclear cells. 5) Phytol on the macrophage from peritoneal cavity showed a higher effectiveness in vivo than in vitro. These results indicate that phytol shows the inhibitory effect for growth of sarcoma 180 cells in vitro, also it can augment macrophage and NK cell activities in vivo.

• Archives of Plastic Surgery
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• v.41 no.3
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• pp.225-230
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• 2014

The increased application of the da Vinci robotic platform (Intuitive Surgical Inc.) for microsurgery has led to the development of new adjunctive surgical instrumentation. In microsurgery, the robotic platform can provide high definition $12{\times}-15{\times}$ digital magnification, broader range of motion, fine instrument handling with decreased tremor, reduced surgeon fatigue, and improved surgical productivity. This paper presents novel adjunctive tools that provide enhanced optical magnification, micro-Doppler sensing of vessels down to a 1-mm size, vein mapping capabilities, hydro-dissection, micro-ablation technology (with minimal thermal spread-$CO_2$ laser technology), and confocal microscopy to provide imaging at a cellular level. Microsurgical outcomes from the use of these tools in the management of patients with infertility and chronic groin and testicular pain are reviewed. All these instruments have been adapted for the robotic console and enhance the robot-assisted microsurgery experience. As the popularity of robot-assisted microsurgery grows, so will its breadth of instrumentation.

• Journal of Korean Neurosurgical Society
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• v.53 no.5
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• pp.309-311
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• 2013

Ganglion cysts usually arise from the tissues around the facet joints. It is usually associated with degenerative cahanges in facet joints. Bilateral thoracic ganglion cysts are very rare and there is no previous case that located in bilateral intervertebral foramen compressing the L1 nerve root associated with severe radiculopathy. We report a 53 years old woman who presented with bilateral groin pain and severe numbness. Magnetic resonance imaging revealed bilateral cystic mass in the intervertebral foramen between 12th thoracal and 1st lumbar vertebrae. The cystic lesions were removed after bilateral exposure of Th12-L1 foramens. The result of hystopathology confirmed the diagnosis as ganglion cyst. The ganglion cyst may compromise lumbar dorsal ganglion when it located in the intervertebral foramen. The surgeon should keep this rare entity in their mind for differential diagnosis.

• Journal of the Korean Institute of Navigation
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• v.13 no.1
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• pp.77-106
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• 1989

Two numerical models of the shoreline change and sediment transport rates, explicit and implicit, are simulated with shore structures such as breakwaters, a jetty, groins and a seawall. The applied study area is songdo Beach, Youngil bay, Korea since it has all the shore structures mentinoed above. The two models investigate the beach line changes and sedimen transport rates for the beach before design of three groins with and without an offshore breakwater. In order to estimate the shoreline changes after three groins were built, the beach response inside the three groin compartiments and the offshore barrier are also investigated. The simulation based on the initial shoreline conditions surveyed by the Hydrographic office, Koreai 1979 and 1984. The breaking wave characteristics are introduced into the models by calculation from the empirical equations and modification from the numerical and hydraulic model test results developed for waves behind an offshore breakwater. The numerical simulation describes well the tendencies of the sand transport and shoreline changes affected by wave diffraction behind a detached breakwater and by interruption of sand transport at three groins.

• Archives of Plastic Surgery
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• v.42 no.5
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• pp.650-652
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• 2015

• Archives of Plastic Surgery
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• v.40 no.3
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• pp.247-250
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• 2013

Circumcision is one of the most common rituals in Jewish and Islamic cultures. It may also be performed for phimosis correction or the treatment of recurrent balanitis. Although circumcision is considered to be a technically easy and safe surgical procedure with no significant risk, it may lead to severe complications such as necrotizing fasciitis or total penis amputation. In this report, we present a case of penis amputation at two levels occurring with third-degree burns due to electrocautery during circumcision. Although penile replantation was attempted, it was unsuccessful due to burn damage to the veins. After restoration of the functional structures, the penis was buried in the inguinal area by reepithelization to maintain blood circulation. The recovery of the penis was successful. This case is presented as a novel example of groin flap surgery to achieve a functionally and aesthetically acceptable outcome in a salvage operation for a penis with significant traumatic injury, which has not been previously reported in the literature.