• Journal of Digestive Cancer Research
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• v.2 no.2
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• pp.75-77
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• 2014

Ampulla of Vater (AOV) cancer is rare malignant tumor which arises within the vicinity of the AOV. Metastatic AOV adenocarcinoma has poor prognosis, with an overall survival rate at 2 years ranging from 5 to 10%. The Surveillance, Epidemiology and End Results Program of the National Cancer Institute indicated that lymph node metastasis was present in as many as half of patients which were associated with poor prognosis and liver was the second most common site of distant metastasis in AOV cancer. In this case report, we describe a case of complete resolution of AOV cancer, which was already spread to retroperitoneal lymph node and liver. The patient underwent gemcitabine plus cisplatin chemotherapy for palliative aim. After 12 month of chemotherapy, image study showed partial remission, so intraoperative radiofrequency ablation therapy and pylorus preserving pancreaticoduodenectomy was done. AOV cancer was completely resected and the patient was followed up without recurrence for 7 months.

• Proceedings of the Optical Society of Korea Conference
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• 2003.07a
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• pp.218-219
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• 2003

광결합 현상은 근접한 도파로에서 발생하며 각 도파로의 에너지를 다른 도파로로 전이시킨다. 이러한 특성은 광스위치, 광변조기, 광필터 및 광결합／분리기에 널리 사용된다. 이중에서 많이 사용되는 소자중 하나가 방향성 결합기이며 크게 입력부, 접근부, 결합부로 나눌 수 있다. 이때 광결합 현상은 결합부뿐만 아니라 접근부에서도 발생하기 때문에 소멸비는 나빠지게 된다. 본 논문에서는 접근부의 입사각에 따른 소멸비 변화와 이에 대한 조건을 분석하였다. (중략)

• The KIPS Transactions:PartA
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• v.9A no.3
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• pp.351-362
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• 2002

Along with an asynchronous finite state machine, in short AFSM, a signal transition graph, in short STG, is one of the most widely used behavioral description languages for asynchronous controllers. Unfortunately, STGs are not user-friendly, and thus it is very unwieldy and time consuming for system designers to conceive and describe manually the behaviors of a number of asynchronous controllers which constitute an asynchronous control unit for a target system in the form of STGs. In this paper, we suggest an automatic STG derivation method through a process-oriented method. Since the suggested method considers special properties of STG-based asynchronous logic synthesis very carefully, asynchronous controllers which are synthesized from STGs derived through the suggested method are superior in aspects of area, synthesis time, performance and implementability compared to those obtained through previous methods.

• Sim-seong Yeon-gu
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• v.29 no.2
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• pp.101-126
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• 2014

'Transference phenomenon' is considered as a essential feature in psychotherapy as well as psychoanalysis. But there is much difference in conceptual and methodological issues for 'transference phenomenon' among various psychoanalytical schools. In general, the depth psychological studies for 'transference phenomenon' are mainly from the psychoanalytical view of point but relatively sparse from the analytical psychological view of point which has more holistic and deeper understanding for human psyche. So this article was intended for a comprehensive review of 'transference phenomenon' from the perspective of analytical psychology and tried to make an understanding for its meaning. To begin with, the concept of 'transference phenomenon' was investigated from the view before Jung and after Jung, with Jung's view in the center. Then it was made clear that 'transference phenomenon' from the perspective of analytical psychology could be understood by several characteristic aspects. It was suggested that a careful study on the symbolic meaning of the woodcuts' pictures in Rosarium Philosophorum including a proper interpretation of its posterior part to which Jung didn't refer in "The Psychology of The Transference" be devoted to the genuine understanding of 'transference phenomenon' from the perspective of analytical psychology afterwards.

• Journal of the Computational Structural Engineering Institute of Korea
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• v.34 no.2
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• pp.93-100
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• 2021

In Korea, one of the most used structural systems for residential apartment buildings is the combination of the reinforced concrete (RC) wall and rahmen structures in the upper and lower floors, respectively. To alleviate the significant difference between the stiffnesses of these two structural systems, large transfer girders are generally required in the transition zone of the structure, which then results in the use of large amounts of construction materials and low economic feasibility. This paper proposes a new RC boundary-beam-wall system that can minimize the disadvantages of the RC transfer girder system. The structural performance of the proposed system subjected to axial loading was evaluated via rigorous three-dimensional nonlinear finite element analysis. Four parameters, namely the ratio of lower wall to upper wall lengths, distance between stirrups, main bar slope ratio, and slab length, were considered in the finite element analysis, and their effects on the maximum axial load were analyzed and discussed.

• Journal of the Korea Concrete Institute
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• v.22 no.3
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• pp.367-374
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• 2010

The transfer slab system is a structural system that transfers the loads from the upper shear wall structure to the lower columns. This is a costly system due to a very thick slab, and the relatively high cost can be mitigated by introducing voids in the slab. However, this system of flat plate containing voids is vulnerable to brittle failure caused by punching shear in vicinity of slab-column connection. Thus, the punching shear capacity of the void system is very important. However, the current code doesn't provide a clear design provision for the strength of slabs with a void section. In this study, experimental study was conducted to investigate the punching shear strength of the void slab system. The shear strength of the specimens was predicted by current code and previous researches. In result, the punching shear strength of the void system is determined as the least value calculated at critical section located a distance d/2 from the face of the column and the center of the void section using the effective area at critical section.

• The Korean Journal of Nuclear Medicine
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• v.25 no.2
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• pp.211-218
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• 1991

1983년 1월부터 1991년 2월까지 서울대학교 병원에서 진단된 위 암환자를 대상으로 시행한 359예의 골스캔을 후향적으로 재검토하여 골전이 빈도와 양상을 관찰하였으며 환자들의 의무기록을 검토하여 위암의 임상상과 비교하였다. 그 결과는 다음과 같았다. 1) 359예의 골스캔 중에서 골전이에 부합되는 이상소견은 167예(46.5%)이었다. 2) 관찰된 167예의 이상소견 빈도는 척추(66%)에 가장 많이 관찰되었고, 늑골(58%), 골반부(43%), 대퇴골(31%), 두개골(22%)순이었다. 3) 척추전이에서 흉추(65.6%)와 요추(64.5%)의 전이빈도는 거의 비슷하였고, 경추(23.6%)는 낮았다. 4) 골전이 빈도는 임상적 병기 3기 환자에서 진단후 1년 이내에 급격히 증가되었고 그 이후는 증가되지 않았다. 5) 골전이는 임상적 병기가 증가됨에 따라 증가되었으나, 조직학적 세포형태와는 무관하였다. 6) 혈청 alkaline phosphatase 치와 골스캔 상의 골전이 유무와 통제적으로 유의 한 상관관계가 관찰되었다. 이상의 결과로 위암환자의 상당 수에서 골전이가 진단되었으며 위 암환자, 특히 진행암 환자에서 골전이에 대한 주기적인 추적 검사가 필요할 것으로 생각된다.

• Journal of Chest Surgery
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• v.37 no.9
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• pp.809-812
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• 2004

Chest wall metastases from malignant tumors are rare and the majority of them are from adjacent structures such as the breast, lung, pleura, and mediastinum. Paticularly, chest wall metastases from distant organs are an even rarer event. There are few reports of chest wall metastasis with obscure or absent primary tumor. A 51-year-old man was diagnosed with metastatic hepatocellular carcinoma after an operation for a palpable mass on his left upper chest wall, At that time, there was no evidence of primary hepatocellular carcinoma in the liver after various examinations. We report a case of chest wall metastasis from unknown primary hepatocellular carcinoma.

• Journal of the Institute of Electronics Engineers of Korea TC
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• v.40 no.2
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• pp.70-77
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• 2003

In this paper, analysis and measurement on coaxial connecter designed for packaging of microwave and micro strip transition structure are carried out. Even though researches on optimization of various kinds of transition structures have been conducted actively; however, the range of the application was very limited since they have been focused mainly on improvement of specific transmission line. Therefore, in this paper, we tried to analyze three kinds of substrates of which dielectric constants are 2,5,10 and are commercially used nowadays. Besides, we have confirmed reliability of FEM analysis, extracted equivalent circuit of transition area, found out factors determining extracted physical values, and made proof of electromagnetic variations for optimum characteristics. In addition, transition structure showing optimized characteristics on the basis of dielectric and microstrip structure was proposed. We reckon that the result of this research will apply with effect to transition design in microwave packaging development.

• Journal of the Computational Structural Engineering Institute of Korea
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• v.31 no.6
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• pp.315-329
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• 2018

Recently, RC transfer slab systems have been used widely to construct high-rise wall-type apartments for securing parking space or public space. However, it is problem that the design method and structural performance evaluation method developed for thin RC flat slab are still used in the design of the transfer slab whose thickness is very thick and therefore structural behavior is expected to be different from RC flat slab. Thus, for the rational design of the transfer slab, the ultimate shear behavior of the RC transfer slab system is required to be analyzed properly. Accordingly, in the present study, the two-way shear behavior of the transfer slab was analyzed using nonlinear FEM according to various design parameters such as thickness of the transfer slab, strength of concrete, shear span ratio, and reinforcement ratio. In addition, the two-way shear strength evaluations of RC transfer slab by the existing evaluation methods were verified by comparing those with the results of nonlinear FEM analysis.