• 제목/요약/키워드: Chung Guk Jang

검색결과 41건 처리시간 0.023초

기중방전의 방전원별 특성분석 및 패턴분류 (Properties and Classification of Patterns of Air Discharges)

  • 박영국;이광우;장동욱;강성화;정광호;김완수;이용희;임기조
    • 대한전기학회논문지:전기물성ㆍ응용부문C
    • /
    • 제49권1호
    • /
    • pp.19-23
    • /
    • 2000
  • Partial discharges(PD)in air insulated electric power apparatus often lead to deterioration of solid insulation by electron bombardments and electrochemical reaction. The PD caused to reduce the life time of power apparatus and to increase power losses. Thus understanding and classification of PD patterns in air are very important to discern sources of PD. In this paper, PD in air by using statistical methods was investigated. We classified air discharges, corona, surface discharges and cavity discharges by Kohonen network. For classification of PD patterns, we used statistical operators and parameters such as skewness$(S^+,\; S^-),\; kurtosis(K^+, K^-),\; mean phase(AP^+, AP^-)$, cross-correlation factor(CC) and asymmetry derived from the mean pulse-height phase distribution$(H_{avg}(\phi))$, the max pulse-height phase distribution $(H_{qmax}(\phi))$, the pulse count phase distribution $(H_n(\phi))$ and the pulse height vs. Repetition rate $(H_q(n))$.

  • PDF

인간 유방암세포 MDA-MB 231에 대한 황금찰수수 추출물의 IGF-1R, STAT Family, Jak/STAT Signaling 발현의 억제를 통한 종양 성장의 억제 효과 연구 (Hwanggeumchal Sorghum Extracts Suppresses Tumor Growth via Inhibitions of IGF-1R, STAT Family and Jak/STAT Signaling Expression for Human MDA-MB 231 Breast Cancer Cells)

  • 박진희;여민아;김선진;권정웅;송성현;용수정;장미소;김명조;박동식;송홍근;안종국;양영목;정일민
    • 한국약용작물학회:학술대회논문집
    • /
    • 한국약용작물학회 2010년도 심포지엄 및 추계학술발표회
    • /
    • pp.495-496
    • /
    • 2010
  • PDF

중경(仲景) ${\ll}$상한론(傷寒論)${\gg}$의 육경실질(六經實質)에 관(關)한 연구(硏究)

  • 정창현;박찬국
    • 대한한의학원전학회지
    • /
    • 제7권
    • /
    • pp.232-268
    • /
    • 1994
  • According as we look around a notion of LM-YANG(陰陽) in NAE-KYUNG(內徑) or ancient for example the Book of Changes(周易), we will find that the principle of UM-YANG of philosophy in ancient china was applied medical science by NAE-KYUNG, and Chung-Kyung(仲景) connected principle of UM-YANG in NAE-KYUNG to demonstration and medical treatment(辨證施治) of SANG-HAN disease(傷寒病). According as we look around 3UM-3YANG(三陰三陽) in NAE-KYUNG and various theories of another scholar connected 3UM-3YANG of SANG-HAN-RON(傷寒論), we can know that the whole of SANG-HAN-YUK-KYUNG(傷寒六經) cannot explain by a some conception, we cannot understand precisely rear meaning of SANG-HAN-YUK-KYUNG until theories-JANG-BU(臟腑), GYUNG-RAK(經絡), GI-HWA(氣化), a reigon, a layer, and so on-are studied totally. Therefore 3UM-3YANG of SANG-HAN-RON(傷寒論) is basically the thing of specialization UM-YANG, eventually UM-YANG are two functional characteristics in human body. It is specialized to 3UM-3YANG by spatial and time criteria. When we consider a question in its aspect, YUK-KYUNG is synthetic six classifications of human body's functional system that include(3UM-3YANG)GYUNG-RAK, related JANG-BU, distributional area of GYUNG-RAK, vicissitude of UM-YANG, more or less of GEE-HYUL(氣血), function of GAE-HAB-CHUL(開闔樞), and the like; and disease of YUK-KYUNG of SANG-HAN-RON are the very six types of disease that appeared by dint of mal function of each synthetic functional system.

  • PDF

칠제향부환(七製香附丸)이 원발성(原發性) 월경통(月經痛) 환자(患者)의 복부(腹部) 온도(溫度)에 미치는 영향(影響) (The effect of Chiljehyangbuhwan on the abdominal temperature in the primary dysmenorrhea patients)

  • 이창훈;조정훈;장준복;이경섭;윤영진
    • 대한한방체열의학회지
    • /
    • 제4권1호
    • /
    • pp.29-38
    • /
    • 2005
  • Purpose: We intended to observe the relations between Chiljehyangbuhwan and abdominal temperature according to primary dysmenorrhea severity. Methods: We selected the 100 primary dysmenorrhea patients by the screening tests (first screening test-inquiry, second screening test-clinical test, additionally WHR (Waist-to-Hip ratio) by Inbody 2.0). By the fixed blocked randomization and double blind method, Chiljehyangbuhwan or placebo was administered for 1 menstration period. Finally, 69 patients remainded. Before and after administration, we measured 4 points abdominal temperature (Chon-jung(CV17), Chung-wan(CV12), Kwan-won(CV4), Chung-guk(CV3)) by DITI (DOREX Inc., USA). And then we checked the difference of temperature $({\Delta}T)$ between CV17 and CV12 / CV17 and CV4 / CV17 and CV3 / CV12 and CV4 / CV12 and CV3. After that, we compared ${\Delta}T$ with primary dysmenorrhea severity evaluated by VRS (verbal rating scale) and MVRS (multidimensional verbal rating scale). In dysmenorrhea severity, we standardized scale score and 3-group-severity by score (mild, moderate, severe). For statistics, we used Pearson correlations and Spearman's rho correlations, SPSS 11.0 for windows. Results: In case of MVRS, Chiljehyangbuhwan was correlated to ${\Delta}T$ (CV12 and CV3 / CV12 and CV4). In case of VRS, Chiljehyangbuhwan was not correlated to ${\Delta}T$. Statistically they showed significant result (p<0.05). Conclusion: The primary dysmenorrhea patients showed that severity by MVRS was connected with ${\Delta}T$ (CV12 and CV3 / CV12 and CV4) after Chiljehyangbuhwan administration. So we can consider Chiljehyangbuhwan effects the abdominal temperature according primary dysmenorrhea severity.

  • PDF

꿩고기 조리법의 문헌적 고찰 - 1800년 대 말~1990년대까지의 조리서들을 중심으로 - (A Literature Review on the Recipes for Pheasant - Focus on Recipe Books from 1800's to 1990's -)

  • 국경덕;권용석;정혜정
    • 한국식생활문화학회지
    • /
    • 제26권5호
    • /
    • pp.455-467
    • /
    • 2011
  • The main purpose of this study was to survey the various kinds of recipes for pheasant found in seventeen Korean cookbooks published from the 1800's to the 1990's. There were 95 pheasant recipes found in the literature which could be classified into three major groups: cooking with moist heat, cooking with dry heat, and other. The three major groups were then broken down into thirteen smaller groups. A detailed look at the frequency of terms in each recipe shows that Gui Sanjeok (grilled Korean shish kebabs) appears 24 times, Guk Tang and Jeongol (soup and stew) 23 times, Kimchi (fermented cabbage) 11 times, Po (jerky) 9 times, Jorim (boiled in soy sauce) 7 times, Jjim (steamed) 6 times, Bokeum (stir-fried) 5 times, Twigim (deep-fried) 3 times, Buchim (fried) 2 times, Jigae jijim (stewed) 2 times, and Jang (paste), Myeon (noodles), Gooum (boiled) and Yeot (Korean hard taffy) 1 time each. The main ingredient is always the pheasant. We investigated the use of the whole pheasant cooked, how to slice and tenderize pheasant meat, use the meat only, or use only certain parts. Depending on the characteristics of cooking recipes, pheasants with thin, soft bones and organs were investigated for cooking. Substituted materials were used for a few of the vegetables, meat, and seafood in the recipes, and seem to go well together. Garnishes used included pine nut powder and fried eggs. Seasoned salt, soy sauce, pepper, sesame, sesame oil, chopped onion, garlic, and ginger were also reported to have been used.

Cell 구조물의 변형특성에 미치는 셀 벽면 마찰의 영향 (The Effect of Wall Friction on Deformation Characteristics of the Cellular Bulkhead)

  • 손대산;장정욱;김경열;김현국;정연인
    • 한국해안·해양공학회논문집
    • /
    • 제22권4호
    • /
    • pp.230-234
    • /
    • 2010
  • 본 연구에서는 기존의 근입비와 재하높이에 따른 모형실험의 결과를 바탕으로 셀 내벽의 마찰을 인위적으로 증감시켜 셀 구조물의 변형특성에 미치는 벽면 마찰의 영향을 알아보고자 하였다. 그 결과는 다음과 같다. 1. 재하높이가 낮아질수록 그리고 근입비가 증가할수록 셀 구조물의 변형특성에 미치는 벽면마찰의 영향은 적게 나타났다. 또한 벽면 마찰이 감소함에 따라 항복하중도 작은 값을 나타내었다. 2. 재하높이가 낮아질수록 그리고 근입비가 커질수록 셀 구조물의 수평이동 변위에 대한 회전성분 변위의 비가 작게 나타났다. 따라서 벽면 마찰의 영향은 회전성분 변위와 밀접한 관련이 있음을 알 수 있었다.

Anti-inflammatory Activity of Codium fragile in Macrophages Induced by Peptidoglycan

  • Han, Sin-Hee;Kim, Young-Guk;Lee, Su-Huan;Park, Chung-Berm;Han, Seung-Won;Jang, Hye-Jin;Lee, Hyo-Jeong;Park, Seong-Cheol;Kim, Hye-Sung;Lee, Young-Seob;Kwon, Dong-Yeul
    • Natural Product Sciences
    • /
    • 제16권3호
    • /
    • pp.153-158
    • /
    • 2010
  • To fine out the anti-inflammatory activities of the C. fragile. and its mechanism were investigated in macrophages induced by Peptidoglycan (PGN). Treatments of macrophages with 100 ug/ml of ethanol extract of Codium fragile (EECF) inhibited PGN-induced IL-6, NO and PGE2 production in a dose-dependent manner as well as expression of iNOS and COX-2. EECF inhibited PGN-induced extracellular signal-regulated kinase (ERK) 1/2, JNK 1/2 and p38 MAPK phosphorylation, which suggests that EECF inhibits IL-6 and NO secretion by blocking MAPKs phosphorylation. These findings may help elucidate the mechanism by which EECF modulates RAW 264.7 cell activation under inflammatory conditions.

보존적 치료로 호전된 자리돔 가시에 의한 급성 종격동염 1예 (A Case of Acute Mediastinitis Associated with Fish Bone with Successful Conservative Treatment)

  • 김경묵;장안수;김선욱;송병철;염충호;정주영;황진수;최국명;이홍섭
    • Tuberculosis and Respiratory Diseases
    • /
    • 제53권3호
    • /
    • pp.344-348
    • /
    • 2002
  • 저자 등은 자리돔 가시를 먹고 흉부통증과 호흡곤란을 호소하여 내원한 환자에서 흉부전산화단층촬영에서 종격동염을 진단하고 보존적 치료에 의해 호전된 급성종격동염 1예를 경험 하였기에 문헌 고찰과 함께 보고하는 바이다.

Codium fragile Ethanol Extraction Inhibited Inflammatory Response through the Inhibition of JNK Phosphorylation

  • Han, Sin-Hee;Kim, Young-Guk;Lee, Su-Hwan;Park, Chung-Berm;Choi, Han-Gil;Jang, Hye-Jin;Lee, Young-Seob;Kwon, Dong-Yeul
    • Preventive Nutrition and Food Science
    • /
    • 제15권3호
    • /
    • pp.206-212
    • /
    • 2010
  • Codium fragile (CF) is an edible green alga consumed as a traditional food source in Korea. In this study, the ethanol extract of CF was evaluated to determine if it has anti-inflammatory activity. Lipopolysaccharide (LPS), a toxin from bacteria, is a potent inducer of inflammatory cytokines, such as tumor necrosis factor (TNF)-$\alpha$ and interleukin (IL)-6. Therefore, we studied whether CF extracts have an anti-inflammatory effect in LPS-induced murine macrophage cell lines (RAW 264.7). In the present study, IL-6 production was measured using an enzyme-linked immunosorbent assay (ELISA), prostaglandin $E_2$($PGE_2$) production was measured using the EIA kit, and cyclooxygenase (COX)-2 and mitogen-activated protein kinase (MAPK) activation were determined by Western blot analysis. IL-6 mRNA, COX-2 mRNA and iNOS mRNA expression were measured using reverse transcription-polymerase chain reaction (RT-PCR). The results indicated that CF extracts inhibit LPS-induced IL-6, NO and PGE2 production in a dose-dependent manner, as well as expression of iNOS and COX-2. CF extracts significantly inhibited LPS-induced c-Jun N-terminal kinase (JNK) 1/2 phosphorylation. Taken together, these findings may help elucidate the mechanism by which CF modulates RAW 264.7 cell activation under inflammatory conditions.

주성분 분석 기반의 CPA 성능 향상 연구 (A Study on CPA Performance Enhancement using the PCA)

  • 백상수;장승규;박애선;한동국;류재철
    • 정보보호학회논문지
    • /
    • 제24권5호
    • /
    • pp.1013-1022
    • /
    • 2014
  • 상관관계 전력 분석(Correlation Power Analysis, CPA)은 암호장비에서 알고리즘이 수행될 때 누설되는 전력 소비 신호와 알고리즘의 중간 계산 값의 상관도를 이용하여 비밀키를 추출하는 부채널 공격 방법이다. CPA는 누설된 전력 소비의 시간적인 동기 또는 잡음에 의해 공격 성능이 영향을 받는다. 최근 전력 분석의 성능 향상을 위해 다양한 신호 처리 기술이 연구되어지고 있으며, 그 중 주성분 분석 기반의 신호 압축 기술이 제안되었다. 주성분 분석 기반의 신호 압축은 주성분 선택 방법에 따라 분석 성능에 영향을 주기 때문에 주성분 선택은 중요한 문제이다. 본 논문에서는 CPA의 성능 향상을 위해 전력 소비와의 상관도가 높은 주성분을 선택하는 주성분 선택 기법을 제안한다. 또한 각 주성분이 갖는 특징이 다르다는 점을 이용한 주성분 기반 CPA 분석 기법을 제안하고, 기존 방법과 제안하는 방법의 실험적인 분석을 통해 공격 성능이 향상됨을 보인다.