• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2009년도 하계학술대회 논문집
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• pp.143-143
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• 2009

본 논문은 2500V급 planar type의 NPT(Nun-Punch Through)형 IGBT설계 및 제작에 앞서 IGBT(Insulated Gate Bipolar Transistor)소자가 갖는 구조적 변수가 전기적 특성 (Breakdown Voltage, Turnoff Time, Saturation Voltage, 등)결과에 미치는 영향을 분석하여 IGBT 소자가 갖는 구조적 손실을 최적화 하는데 목표를 두었다. 최적화의 진행은 공정 시뮬레이터인 Tsuprem4와 디바이스 분석 시뮬레이터인 MEDICI를 이용하여 소자가 갖는 각각의 parameter값이 전기적 특성에 미치는 영향을 분석함으로 진행 되어졌으며, 향후 고속철 등과 같은 대용량 산업에 기여할 것으로 판단된다.

• 철학연구
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• 제137권
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• pp.33-56
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• 2016

본 논문은 동양과 서양을 이분법적으로 구분하는 세계관에 대해 비판하고 동서양을 상호적 타자인 주체로 인정해야 하는 하나의 '우리'로 이해해야 한다는 주장을 담고 있다. 동양이 '나'라면 서양은 분명 '너'가 될 것이고 그 반대도 성립될 것이다. 그래서 동양과 서양은 분명 다르다. 하지만 서로가 스스로를 주체로 의식함과 동시에 타자가 자신처럼 또 다른 주체가 될 수 있다는 점을 인정하게 된다면 동양과 서양이라는 서로 다른 주체들은 사실 더 큰 '우리 안의 타자'로 이해되어야 할 것이다. 19세기 이후 동양은 서양의 문화와 사상을 배우고 수용하는 데 매우 많은 노력을 기울였다. 하지만 그 과정에서 동양은 서양을 '우리 안의 타자'로서가 아니라 '우리 밖의 타자'로서 또는 '내가 지향해야할 궁극적 나'로서 이해하고 있는 듯 보인다. 특히 서양에 대한 동양의 이러한 분열적 태도는 19세기 아편전쟁을 겪고 중화주의가 붕괴되는 과정에서 동아시아 전체에서 벌어진 현상이라고 생각된다. 그리고 서양 또한 동양을 '우리 안의 타자'로서 인정하지 않았다. 현재 인류가 '세계화'라는 가치를 지향하고 있는데 이러한 세계화가 동서양을 포함한 전체 인류공영의 가치를 실현시키기 위해서는 동서양이 서로를 '우리안의 타자'로 이해하는 것이 선행되어야 한다는 점을 강조하고자 한다.

• 대한한의학회지
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• 제32권1호
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• pp.164-174
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• 2011

Objective: The antiplatelet agent aspirin has been widely used for treating atherosclerosis in western medicine, and its efficacy has been proven in cardiac and extracardiac vascular diseases. On the other hand, Hyeolbuchukeo-tang has been widely used for treating blood stasis syndrome in traditional medicine. Therefore we investigated whether Hyeolbuchukeo-tang could have a synergic effect along with aspirin. Methods & Materials: Male $ApoE^{(-/-)}$ mice were randomly divided into three different experimental groups: a non-treated group(Control group), an aspirin-treated group(AP group), and an aspirin with Hyeolbuchukeo-tang-treated group(APH group). The control group was fed only an atherogenic diet, the AP group an atherogenic diet plus Aspirin 5 mg/kg, and the APH group an atherogenic diet plus Aspirin 5 mg/kg with Hyeolbuchukeo-tang 100 mg/kg. We investigated plasma lipid with liver function test, and performed the histological investigation of liver and abdominal aorta. Results: 1. We investigated photomicrographic changes of liver and abdominal aorta tissue. They showed that histological injury of aorta and lipid accumulations of the liver were lower in the AP and APH groups than in the control group. 2. In the APH group, plasma triglyceride levels were significantly lower than those in the control and AP groups. 3. There were no differences in aspartate aminotransferase and alanine aminotransferase levels among the control, AP and APH groups. Conclusion: The above results show that a combined treatment of Hyeolbuchukeo-tang and aspirin has a somewhat synergic effect in terms of inhibiting vessel injury and decreasing lipid deposits on liver cells without liver toxicity.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2008년도 International Meeting on Information Display
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• pp.1529-1531
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• 2008

Since the discovery over a decade ago, carbon nanotubes (CNTs) have been attracting considerable attentions both from scientists and engineers. Because of the excellent field emission properties, such as high aspect ratio, extremely small diameter, and high emission current, CNTs become a potential candidate as field emitter for field emission display (FED) and lighting (FEL) as backlight for LCD. Due to the exceptional physical properties, such as superior thermal and electrical conductivities, as well as high stiffness and strength, the CNT-based composites can be as light-weight heat-sink or thermal spreader materials used for power electronic devices, such as power LED for general illumination. The CNTs for above applications will be reviewed, and related materials and devices will be demonstrated in this paper.

• 대한한의학회지
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• 제27권4호
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• pp.48-56
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• 2006

Objectives : This study is aimed to elucidate anti-hepatoma activity of Coptis Chinensis Extract (CCE) and evaluate its effect on proliferation of human hepatoma Hep G2 cells. Methods : To identify CCE and control the quality, we performed fingerprinting by high-performance thin layer chromatography (HPTLC). To investigate effects of CCE on anti-hepatoma activity, we measured cytotoxicity against Hep G2 cells compared with treatment of paclitaxel and 5-fluorouracil (5-FU). To examine the mechanism of inhibitory effect of CCE on Hep G2 cell proliferation, cell cycle distribution was evaluated using fluorescent activated cell sorter (FACS) Result : CCE showed a significant effect that arrests Hep G2 cells at the G2/M phase of the cell cycle. CCE combined with paclitaxel inhibited synergistically cell growth of Hep G2 cells. Conclusion : CCE may present anticancer effects through inhibition of hepatocellular carcinoma (HCC) cell proliferation via G2/M arrest, and may be a useful anticancer agent for HCC.

• 대한암한의학회지
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• 제15권1호
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• pp.71-77
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• 2010

This case report documents a case in which the administration of an herbal product, an extract of the lacquer tree, Rhus verniciflua Stokes was related with a prolonged survival in a elderly advanced non-small cell lung cancer(NSCLC) patient. A 79-year-old man who had been diagnosed with advanced NSCLC refused conventional therapy and treatment with the allergen-removed Rhus verniciflua Stokes(aRVS) had continued from September 2007 to July 2010. He had survived for 35 months after the administration of aRVS and maintained good performance status with European Cooperative Oncology Group performance status(ECOG PS) of 1. This case suggests that aRVS be alternative treatment for the elderly advanced NSCLC patients.

• 대한한방내과학회지
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• 제28권4호
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• pp.948-955
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• 2007

Objectives : We present a case of pancreatic carcinoma patient with lymph node metastasis. Methods : We analyzed the medical record of a pancreatic carcinoma patient with lymph node metastasis who had been treated with traditional Korean medicine from 2006 until 2007. He complained of abdominal pain, dyspepsia and anorexia. We prescribed him HAD, PSM, BKH and other oriental medicines. Results : For 18 months he was treated with oriental medicine. Over this time, the pancreatic tumor remains stable disease (SD) and most symptoms have disappeared. Cconclusions : When it comes to the therapeutic effects, it could be suggested that oriental medicine has effects on keeping SD and improving symptoms.

• 대한한의학회지
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• 제26권4호
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• pp.46-55
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• 2005

Objectives: This experimental study was carried out to evaluate the immune modulating and anti-tumor activity of Ampelopsis Radix extracts (ARE). Materials and Methods: To elucidate the effects of ARE on the macrophage and NK cell activity, we analyzed NO production, NK cytotoxicity and gene expressions of cytokine related with macrophage and NK cell activity. Results: ARE activated and promoted macrophages to product NO in part. And, ARE has significant properties to activate macrophages and NK cells by promoting related cytokines like IL-1, IL-12, IFN-$\gamma$, iNOS and TNF-$\alpha$ gene expressions. We also observed that ARE promoted protein expression of IFN-$\gamma$, and TNF-$\alpha$ in mice splenocytes. Conclusions: ARE is an effective herbal drug for immune modulating and anti-cancer by promoting activity of macrophages and NK cells.

• Journal of Acupuncture Research
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• 제20권2호
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• pp.77-84
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• 2003

Objective : In order to study the effects of bee venom(BV) on the pain, edema, and acute inflammatory reactant of rheumatoid arthritis(RA) patients. Methods : Patients with RA who met the ACR(American College of Rheumatology) 1987 revised criteria for the diagnosis of RA were treated with the BV therapy twice a week for 3 months. Tender joint counts, swollen joint counts, Visual analog scale(VAS), morning in stiffness, ESR, C-reactive protein(CRP) were analyzed before and after BV therapy. Results : The results as follows: 1. Tender joint counts in patients after BV therapy were significantly lower than those before BV therapy($9.0{\pm}7.9$ vs $15{\pm}11.4$, p=0.002). 2. Swollen joint counts of the patients after BV therapy were significantly lower than those before BV therapy ($5.0{\pm}6.1$ vs $1.5{\pm}2.3$, p=0.001). 3. VAS in patients after BV therapy was significantly lower than before BV therapy($60.8{\pm}17.6$ vs $38.0{\pm}15.9$, p=0.000). 4. Duration of morning stiffness in patients after BV therapy was significantly reduced compared with that before BV therapy($119.1{\pm}112.6min$ vs $59.0{\pm}89.7min$, p=0.009). 5. ESR and CRP were not significantly changed before and after BV therapy, suggesting BV itself could make inflammatory reaction as well as therapeutic effect. Conclusions: BV therapy improved tender joint counts, swollen joint counts and duration of morning stiffness in this study, and further study is needed in log-term effect of BV therapy.

• 수산경영론집
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• 제32권1호
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• pp.125-149
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• 2001

The study tries to suggest policy proposals for enhancing competitiveness of our country as the base of fisheries logistics in East-North Asia. The study strongly recommends the adoption of the system of fisheries free trade area(FTA) to achieve the object under the analysis of structure of international fisheries trade in East-North Asian countries.