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김양일(Yang-Il Kim),한석만(Seok-Man Han),정구형(Koo-Hyung Chung),박경한(Kyung-Han Park),김발호(Balho H. Kim) 대한전기학회 2006 대한전기학회 학술대회 논문집 Vol.2006 No.7
Consumption of fossil fuel has been increasing steadily, and it has seriously affected environment. Due to this situation. UN established UNFCC (United Nations Framework Convention on Climate Change), and since Feb. 2005, Kyoto Protocol has come into effect for UNFCC obligation. In Korean power system. coal and oil thermal generation emitting large CO2 form about 46% of total generation. Moreover since electricity demand has been increasing continuously, various alternatives should be designed to comply with Kyoto Protocol. In this paper, we analyze changes of each GENCO's generation pattern and resource planning under CO2 emission constraints. For this analysis, we incorporate CO2 emission constraints and the emission trading mechanism into the conventional OPF model.
CO2 배출량 제약과 배출권거래제를 고려한 설비계획 방법론에 관한 연구
김양일(Yang-Il Kim),이승현(Seung-Hyun Lee),한석만(Seok-Man Han),정구형(Koo-Hyung Chung),김발호(Balho H. Kim) 대한전기학회 2006 대한전기학회 학술대회 논문집 Vol.2006 No.11
WASP which is used to plan generation expansion has disadvantages that can't manage environmental factors and regional supply-demand planning. But with the effectuation of the United Nations Framework Convention on Climate Change (UNFCCC) and Kyoto Protocol, it is expected that reducing greenhouse gases affects power system in its long-term generation expansion planning. Therefore national countermeasures is needed. This paper formulates a mathematical model considering CO2 emission constraints and Emission Trading that will be enforced. This model is based on the ORIRES which was made by ESI, Russia and manages generation expansion planning. And this mathematical model is verified by studying a case system.
권우일,박도중,이혁준,김우호,양한광,최국진,이건욱,Kwon Wooil,Park Do Joong,Lee Hyuk-Joon,Kim Woo Ho,Yang Han-Kwang,Choe Kuk Jin,Lee KuhnUk 대한위암학회 2005 대한위암학회지 Vol.5 No.2
A hepatoid adenocarcinoma of stomach, a subtype of gastric cancr, is characterized by a histologic resemblance to a hepatocellular carcinoma and $\alpha$-feto protein production. Another feature is early metastasis to the liver and lymph nodes, thus revealing a poor prognosis. We report a case of a hepatoid adenocarcinoma of the stomach with liver metastasis. A 52-year-old male visited our hospital with a chief complaint of indigestion. Gastroscopic examination showed a Borrmann type-II lesion on the lesser curvature of the antrum. The CT scan showed a suspected advanced gastric cancer with liver metastasis. The serum AFP level was 123 ng/ml. A radical subtotal gastrectomy and a right hemihepatectomy were performed simultaneously. Pathologic examination confirmed the lesion to be confined to the submucosa. The gastric lesion was a hepatoid adenocarcinoma, and the hepatic lesion was a metastatic adenocarcinoma from the stomach. Therefore, he was classified as having stage IV (T1N1M1) gastric cancer. In cases of a hepatoid adenocarcinoma of the stomach, even patients with early gastric cancer can be staged into the poor prognostic group. 위암의 한 아형인 간양 선암은 조직학적으로 간세포암종과 형태학적으로 유사하며 알파태아단백 생산을 특징으로 한다. 간양 선암의 또 하나의 특징은 간과 림프절로의 조기 전이를 함으로써 불량한 예후를 갖는다는 것이다. 저자들은 간전이를 동반한 위의 간양 선암 1예를 보고하고자 한다. 소화불량을 주소로 내원한 52세 남자 환자는 위내시경 검사상 Borrmann 제2형 병변이 위암이 의심되었다. 환자의 혈청 알파태아단백은 123 ng/ml로 증가되어 있었다. 근치적 위아전절제술과 간우엽절제술을 시행하였고 조직학적 소견상 위의 병변은 점막하층에 국한된 간양 선암이었으며 간의 병변은 위로부터 전이된 선암이었다. 결국 환자는 위암 4기(T1N1M1)로분류되었다. 위의 간양 선암은 조기병변에서도 불량한 예후군으로 분류될 수 있다.
수술이 불가능한 전이성 또는 국소 진행성 위암 환자에서 선행화학요법의 효과
정유승,박도중,이혁준,김세형,한준구,김태유,방영주,허대석,김노경,김우호,양한광,이건욱,최국진,Chung Yoo-Seung,Park Do Joong,Lee Hyuk-Joon,Kim Se Hyung,Han Joon Koo,Kim Tae-You,Bang Yung-Jue,Heo Dae Seog,Kim No Kyung,Kim Woo Ho,Yang Han-Kwang 대한위암학회 2004 대한위암학회지 Vol.4 No.1
Purpose: The purpose of this study was to evaluate the treatment result of surgical resection after preoperative chemotherapy in inoperable gastric cancer patients. Materials and Methods: We analyzed 18 gastric cancer patients who underwent gastric resection after preoperative chemotherapy because they showed some clinical response to chemotherapy (15 with distant metastasis and 3 with locally advanced lesions). The mean postoperative follow-up period was $15.3\pm15.5$ ($1\∼56$) months. Results: In 15 patients with distant metastasis, 2 ($13.3\%$) showed complete response (CR), 10 ($66.7\%$) partial response (PR), 2 ($13.3\%$) stable disease (SD), and 1 ($6.7\%$) progressive disease (PD). The clinical response rate was $80.0\%$ Five subtotal gastrectomies, 4 total gastrectomies, and 6 extended total gastrectomies were performed. Two cases of CR were alive without recurrence for 4 and 26 months, respectively. Mean survival period in PR case was 37.7 months, but 2 cases of SD and 1 case of PD died after 11.7, 17.9, and 0.9 months, respectively. Postoperative survival was significantly associated with the response to chemotherapy (P<0.01). The mean survival period of the 10 patients with a complete resection was 44.1 months, which was significantly better than that of the 5 patients with an incomplete resection (9.8 months, P=0.03). Among 3 patients with locally advanced gastric cancer, 2 cases showed PR to chemotherapy, and complete resection was possible only by gastrectomy for those patients. Conclusion: In some selected cases, surgical resection was achievable after preoperative chemotherapy for patients with inoperable metastatic or locally advanced gastric cancer.
양미성,김지수,최정화,김종한,정민영,박수연,Yang, Mi-Sung,Kim, Ji-Soo,Choi, Jung-Hwa,Kim, Jong-Han,Jung, Min-Yeong,Park, Soo-Yeon 대한한방안이비인후피부과학회 2016 한방안이비인후피부과학회지 Vol.29 No.4
Objectives : The purpose of this study is to report that Korean medical treatment is good for Dyshidrotic Eczema patient. Methods : This is 2 case reports on patient who has been suffering from Dyshidrotic Eczema. To reduce symptoms, we provided with internal herbal medicine Gagam-tongcheong-san 2 times a day, Wet Dressing by hwangryunhaedok-tang and acupuncture therapy. Results : After series of treatments, the symptoms of Dyshidrotic Eczema were remarkably improved. Conclusions : Gagam-tongcheong-san were effective for Dyshidrotic Eczema patients. Hence, more studies should be demanded in Korean medicine for elevation of treatment rate.
육계에서 사료내 황토 첨가가 성장 및 체조성에 미치는 영향
양철주,오종일,최연재,김정빈,문승태,한승관,Yang, C.J.,Oh, J.I.,Choi, Y.J.,Kim, C.B.,Mun, S.T.,Han, S.G. 한국가금학회 2006 韓國家禽學會誌 Vol.33 No.4
본 연구는 황토의 첨가가 육계의 성장, 사료 이용율, 체조성, 장기의 무게 및 분중 암모니아 생산에 미치는 영향에 대하여 연구하였다. 공시동물은 Ross broiler 216수로 6처리 6반복 반복당 6수씩 사양 시험을 실시하였다. 처리구는 1) 대조구, 2) 황토 0.5% 첨가구, 3) 황토 1.0% 첨가구, 4) 황토 2.0% 첨가구, 5) 황토 4.0% 첨가구, 6) 황토 8.0% 첨가구로 총 6처리로 나누어 실시하였다. 증체량은 황토의 첨가 수준이 증가할수록 감소하는 경향을 보였다(P<0.05). 하지만 사료 섭취량과 사료 요구율은 황토 첨가구와 대조구에서 통계적인 유의차를 보이지 않았다. 산패도는 황토 첨가구와 대조구에서 통계적인 유의차를 보이지 않았다. (P>0.05). 도체내 콜레스테롤 함량은 대조구보다 황토 첨가구에서 감소하는 경향을 보였으며, 통계적인 유의차를 보였다(P<0.05). 암모니아가스 농도를 측정한 결과 평균 농도는 대조구에 비해서 황토 첨가구의 농도가 전체적으로 모두 감소하였다.(P<0.05). 광물질 분석에서 Mn 함량은 황토 8.0% 첨가구가 대조구보다 높은 수치를 보였으며, 통계적인 유의차를 보였다.(P<0.05). 대장의 무게는 황토 2.0, 4.0 및 8.0% 첨가구에서 감소하였으며, 통계적인 유의차를 보였다.(P<0.05). 본 연구를 통하여 황토를 소량 첨가하였을 경우 증체율 개선 효과를 보였으며, 분중 암모니아 가스 농도가 대조구보다 현저히 낮아 사료 첨가제로서의 가능성을 보였다. This experiment was conducted to evaluate the effects of dietary Hwangto on growth performance and body composition in broiler chicks. A total of 216 one-day old 'Ross' broilers were assigned to 6 treatments in a completely randomized design. The six dietary treaoents were control no Hwangto added and diets containing 0.5, 1.0, 2.0, 4.0 and 8.0% of Hwangto supplementation. The weight gain of broilers tended to reduce with increasing level of Hwangto. However, there were no significant differences in feed intake and feed conversion ratio of broilers fed control and diets containing different level of Hwangto supplementation (P>0.05). There were no significant differences in TBA value of meat from broilers fed control and Hwangto supplemented diets (P>0.05). The meat cholesterol content was significantly lower in Hwangto treatment than of the control (P>.0.05). $NH_3$ concentration in feces was reduced in all Hwangto treatments (P<0.05). The Mg and Mn concentrations of meat we.e significantly higher in 8.0% Hwangto treatment than that of the control (P<0.05). The large intestine weight was significantly reduced in 2.0, 4.0 and 8.0% treatments (P<0.05).
CO<sub>2</sub> 제약조건과 배출권 거래제를 고려한 급전계획
김양일,정구형,한석만,김발호,Kim, Yang-Il,Chung Koo-Hyung,Han, Seok-Man,Kim, Bal-Ho, H. 한국에너지학회 2007 에너지공학 Vol.16 No.1
전 세계적으로 많은 국가들이 유엔 기후변화협약 대응을 위한 방안을 마련하고 있다. 만약 우리나라가 기후변화협약 대상국이 된다면 $CO_{2}$를 비롯한 온실가스 배출이 많은 발전분야에 많은 영향을 미칠 것으로 예상된다. 이 논문에서는 $CO_{2}$ 배출량 제약과 교토프로토콜의 유연성 체제 중의 하나인 배출권거래가 시행될 경우 이 들을 급전계획에 반영하는 수리적 모형을 제안하고 급전계획이 어떻게 바뀌는지를 사례연구를 통해 보이고자 한다. Many countries have been preparing the exercise of UNFCCC (United Nations Framework Convention on Climate Change). If UNFCCC is enforced, considerable changes in generation sector are expected due to the imposed greenhouse gas emission. This paper proposes dispatch scheduling algorithms which incorporate the emission constraints and emission trading. Numerical examples are provided to demonstrate the availability these algorithms.