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간경변 환자의 근경련에 대한 전침 치료의 효과 무작위 대조군 연구
이창형,김병석,김경순,곽민아,김승모,Lee, Chang-hyeong,Kim, Byung-seok,Kim, Kyung-soon,Kwak, Min-a,Kim, Seung-mo 대한한방내과학회 2018 大韓韓方內科學會誌 Vol.39 No.4
Objectives: The purpose of this clinical trial was to examine the efficacy and safety of electroacupuncture on liver cirrhosis patients suffering from muscle cramps. Methods: Fourteen patients with liver cirrhosis who experienced muscle cramps at least once a week, regardless of cramp location, were enrolled and randomly allocated to an experimental group (n=12) or a control group (n=12). The experimental patients were treated with electroacupuncture at an electrical stimulation frequency of 100 Hz three times a week for four weeks (12 times in total). Muscle cramps were evaluated by a questionnaire that probed subjective symptoms. We analyzed the frequency of muscle cramps 3 times (at screening, 14 th visit, 15 th visit) during 8 weeks. Results: The number of patients with cramps occurring 'more than once a week' was reduced and the proportion of patients decreased in response to electroacupuncture. The number of patients with cramps occurring 'less than once every two weeks' increased and the proportion of patients also increased in response to eletroacupunture. Conclusions: The results of this study suggest that electroacupuncture treatment will be beneficial for improving muscle cramps in patients with liver cirrhosis. Electroacupuncture is considered a safe and efficacious treatment for patients with liver cirrhosis who complain of muscle cramps.
전해도금 공정온도가 Co-Pt 합금 박막의 미세구조 및 자기적 특성에 미치는 영향
이창형,정근희,박정갑,이광근,서수정,Lee, C.H.,Jeong, G.H.,Park, J.K.,Lee, K.K.,Suh, S.J. 한국결정성장학회 2008 한국결정성장학회지 Vol.18 No.2
Co-Pt 합금 박막은 amino-citrate 기반의 전해액에서 Ru(30 nm)/Ta(5 nm)/Si(100)구조의 작업 전극을 사용하여 정전류 전해도금 방법으로 증착 하였다. (0002) 우선 성장된 Ru의 buffer layers를 사용하여 Co-Pt 합금 박막의 결정구조와 우선 성장을 조절하였다. 본 실험에서는 도금액 온도를 변화시킴에 따른 Co-Pt 합금 박막의 자기적 성질과 미세구조에 미치는 영향을 고찰하였다. Co-Pt 합금 박막의 형상과 조성은 FESEM 과 EDS로 확인하였고, XRD로 결정구조를 분석하였다. 자기적 성질은 진동 시료 자력계와 토오크 자력계로 분석하였다. Co-Pt 합금 박막은 박막표면과 수직한 방향에서 열처리 없이 각각 6527 Oe의 높은 보자력과 0.93의 높은 각형비를 나타내었다. Co-Pt alloy thin films were galvanostatically electrodeposited on Ru (30 nm)/Ta (5 nm)/Si (100) substrates from a amino-citrate based electrolyte. We used Ru(0002)-oriented buffer layers to control the crystallinity and orientation of the Co-Pt alloy thin films. The effect of solution temperature on the microstructure and magnetic properties of the Co-Pt alloy thin film was investigated. The samples were characterized by EDS, FESEM, XRD diffractometer using Cu $K{\alpha}$ radiation. The magnetic properties of these films were analyzed by a VSM and torque magnetometer. The Co-Pt alloy thin films were exhibited very high out-of-plane coercivity and squareness of the multilayer were 6527 Oe and 0.93, respectively, without heat treatment.