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이형호,조국희,김영배,서길수,Lee, Hyeong-Ho,Jo, Guk-Hui,Kim, Yeong-Bae,Seo, Gil-Su 대한전기학회 2000 전기학회논문지C Vol.53 No.12
The dielectric barrier discharge(DBD) is a common method to create a nonthermal plasma in which electrical energy is used to create electrons with a high average kinetic energy. The unique aspect of dielectric barrier discharges is the large array of short lifetime(10ns) silent discharges created over the surface of the dielectric. A silent discharge is generated when the applied voltage exceeds the breakdown voltage of the carrier gas creating a conduction path between the applied electrode and grounded electrode. As charge accumulates on the dielectric, the electric field is reduced below the breakdown field of the carrier gas and the silent discharge self terminates preventing the DBD cell from producing a thermal arc. In fact, the most significant application of dielectric barrier discharges is to generate ozone for contaminated water treatment. Therefore, experiments were perfomed at 1∼2[bar] pressure using a coaxial geometry single dielectric barrier discharge for ozone concentrations and energy densities. The main result show that the concentration and efficiency of ozone are influenced by gas nature, gas quantity, gas pressure, supplied voltage and frequency.
이형호,전용일,조충래,이상재,Lee, Hyeong-Ho,Jeon, Yong-Il,Jo, Chung-Rae,Lee, Sang-Jae 한국정보통신집흥협회 2003 정보화사회 Vol.161 No.-
홈네트워크 기술은 고속의 인터넷 통신 및 디지털 가전기기를 수용할 수 있는 새로운 개념의 댁내 통신 기반을 지칭하는 용어로 가정 내부의 통신 기반을 개선하기 위한 기술이다.
습열리(濕熱痢)로 변증한 궤양성 대장염 환자의 작약탕가미방(芍藥湯加味方) 치험 2례
이형호,최기숙,임동석,유형천,이영수,최창원,김희철,서철훈,Lee, Hyung-Ho,Choi, Ki-Suk,Lim, Dong-Seok,Ryu, Hyung-Chun,Lee, Young-Soo,Choi, Chang-Won,Kim, Hee-Chul,Seo, Chul-Hoon 대한한방내과학회 2006 大韓韓方內科學會誌 Vol.27 No.4
Ulcerative colitis, a diffuse inflammatory disease of the mucosal lining of the colon and rectum, is characterized by bloody diarrhea that waxes and wanes without apparent cause. In oriental medicine, Jakyaktang has been used to treat the disease, diagnosed as Damp-Heat dysentery. We prescribed Jakyaktang-gamibang to two patients who had suffered from ulcerative colitis diagnosed as Damp-Heat dysentery. The two patients were treated with Jakyaktang-gamibang and improved in consciousness of symptoms. We suggest that oriental medicine therapy is effective for treatment of ulcerative colitis.
Caerulein으로 유발된 흰쥐의 급성 췌장염에 대한 은회반총산(銀茴蟠?散)의 효과
이형호,김인수,신민구,이영수,Lee, Hyung-Ho,Kim, In-Soo,Shin, Min-Gu,Lee, Young-Su 대한한방내과학회 2013 大韓韓方內科學會誌 Vol.34 No.3
Objectives : In this study, we aimed to investigate the effect of Eunhoebanchong-san (EBS) on caerulein-induced acute pancreatitis (AP) by detecting oxidative stress markers and performing histopathological examination. Methods : Thirty adult male Sprague-Dawley rats were divided into five groups as follows: normal (NOR), caerulein-induced (CON), caerulein+EBS (130 mg/kg, EA), caerulein+EBS (260 mg/kg, EB) and caerulein+EBS (520 mg/kg, EC) groups. Pancreatic tissues of rats from all groups were removed for apoptosis, and light, and electron microscopic examination. Blood of rats from all groups was obtained for oxidative stress markers and pathological examination. Pancreatic oxidative stress markers were evaluated by the measurements of serum amylase, and interleukin-6 (IL-6) levels were determined spectrophotometrically. Results : The ratio of pancreas/body weight increased significantly in the CON compared with the NOR, but decreased significantly in the EA, the EB, the EC groups compared with the CON. Caerulein administration resulted in a significant increase in amylase, but EBS reduced the levels of these enzymes. Interleukin-6 (IL-6) levels increased significantly in CON compared with NOR, but reduced in EA, EB, and EC group at 24 hrs. In the observations of optical microscopy and electron microscopy, the experimental groups showed significant decreases in pancreatic tissue inflammation, edema, vacuolization, necrosis compared to the control group. Altogether, this indicates EBS is potentially capable of limiting pancreatic damage produced during AP by restoring the fine structure of acinar cells and tissue. Conclusions : We concluded that EBS may have beneficial effects in the treatment of caerulein-induced AP.
자음양영탕이 Streptozotocin(STZ)로 유발된 생쥐의 고혈당에 미치는 영향(影響)
이형호,이영수,Lee, Hyung-Ho,Lee, Young-Soo 대한한방내과학회 2007 大韓韓方內科學會誌 Vol.28 No.3
Objectives : The aim of this study was to investigate the effect of Jaeumyangyung-tang(滋陰養榮場(JY), JA-0.65g/kg;JB-1.3g/kg) on hyperglycemic mice induced with streptozotocin(STZ). Methods : The experiment operated for 6 weeks. The rats were divided into 3 groups : diabetic group(control group), diabetic group treated with JA(0.65g/kg) for 6 weeks, and diabetic group treated with Jb(1.3g/kg) for 6 weeks. Results : In the STZ-induced diabetic group, blood glucose levels significantly increased as well as the loss of body weight. The levels of serum glucose decreased significantly (p<0.05 or p<0.01) in the JA and JB groups compared with the control. According to a tolerance test, intraperitoneal glucose was ameliorated in the JA and JB groups. The blood urea nitrogen (BUN) and creatinine levels slightly decreased. Histologic analyses of the pancreases revealed that the ${\beta}-cells$ on Langerhans' islets were destroyed by STZ, but the ${\beta}-cell$ mass was larger in the JY than in the control mice. Conclusions : These results indicate that JY can exert beneficial effects on diabetes. preservation of in vivo ${\beta}-cell$ function and regeneration of ${\beta}-cell$ dysfunction by STZ.