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고정자 영구자석 버니어 전동기 (Double-Stator Vernier Permanent Magnet Motor, DSPMVM)의 점적을 변화에 따른 효율 차이
안태준(Tae Jun Ahn),강도현(Do Hyeon Kang) 대한전기학회 2021 대한전기학회 학술대회 논문집 Vol.2021 No.11
본 논문은 유한요소법(Finite Element Analysis, FEA) 을 통한 이중 고정자 영구자석 버니어 전동기(Double-Stator Vernier Permanent Magnet Motor, DSPMVM)의 점적율에 따른 특성을 해석한 연구이다. Easitech사의 시뮬레이션 프로그램 EasiMotor를 이용하여 전동기의 설정은 900rpm, 1.5kW 그리고 점적율 변화는 40%, 45%, 50%, 55% 60% 65% 70% 대한 특성(효율, 손실) 으로 실험 했다.
지방종을 동반한 척추관협착증 환자의 복합한방치료 치험 1예
김미혜 ( Mihye Kim ),한수빈 ( Su-bin Han ),박병학 ( Byunghak Park ),손재민 ( Jaemin Son ),이남우 ( Nam-woo Lee ),한정훈 ( Jeong-hun Han ),강도현 ( Do-hyeon Kang ),민태운 ( Tae-woon Min ),안재서 ( Jae-seo Ahn ),이한솔 ( Hansol Lee 한방재활의학과학회 2020 한방재활의학과학회지 Vol.30 No.4
Spinal epidural lipomatosis is a rare disorder characterized by overgrowth of fat in the extradural space, causing spinal stenosis with compression of the neural elements. This study reports on the effectiveness of Korean medicine treatment on a patient who was diagnosed on lumbar stenosis with lipomatosis. The patient was treated with Korean traditional medicine including pharmacopucture, acupuncture, Chuna manual treatment, and Korean herbal medicine, cupping. Numerical rating scale (NRS), Oswestry disability index (ODI), Euroqol five dimension (EQ-5D) index, lumbar range of motion were used as objective tools for evaluating the patient’s progress. Back NRS decreased from 6 to 3. In the case of lower limbl radiation NRS, 5 was reduced to 3 upon discharge. EQ-5D index also increased from 0.751 to 0.766. For ODI, the score dropped from 26.67 to 24.44 on hospitalization. As a result, clinical improvements were found in a patient. In conclusion, this study shows that Korean medicine treatment can be considered as effective conservative care for spinal stenosis with lipomatosis. (J Korean Med Rehabil 2020;30(4):195-201)
한방병원에 입원한 요통 환자의 요추 전만각, 요천각 변화의 심각도에 따른 예후 분석 연구
한수빈 ( Su-bin Han ),김은산 ( Eun-san Kim ),김효준 ( Hyo-jun Kim ),조후인 ( Hoo-in Jo ),김미혜 ( Mi-hye Kim ),이남우 ( Nam-woo Lee ),한정훈 ( Jeong-hun Han ),박병학 ( Byung-hak Park ),손재민 ( Jae-min Son ),강도현 ( Do-hyeon Kang 한방재활의학과학회 2020 한방재활의학과학회지 Vol.30 No.4
Objectives To analyze the prognosis of patients with low back pain according to the severity of abnormal lumbar lordotic angle and Ferguson's angle. Methods Data from electronic medical record of a total of 199 patients hospitalized in Korean medicine hospital were analyzed. With the sagittal view of lumbar spine X-ray, lumbar lordotic angle was defined as the angle between the superior endplate of L1 with the inferior endplate of L5. Ferguson’s angle was defined as the angle between the superior surfaces of the sacral with a horizontal line. ‘Measure Cobb’s Angle Tool’ of ‘INFINITT PACS’ was used to measure both angles. Lumbar lordotic angle and Ferguson's angle were subdivided into five sections. The number of days from onset and the duration of hospitalization were analyzed in each section. Results Severe hypolordotic lumbar lordotic angle group were found to have longer medical history and hospitalization duration than the control group. The ratio of long-term hospitalization (over 15 days) and chronic medical history (over 180 days) of patients with severe hypolordotic Ferguson’s angle were significantly higher than the control group. The ratio of patients with chronic medical history (over 180 days) was significantly higher in severe hyperlordotic Ferguson's angle group than the control group. Conclusions Severe hypolordotic lumbar lordotic angle was related to patient’s prognosis. Both severe hyperlordotic and severe hypolordotic Ferguson’s angle were found to be related to patient’s prognosis. However, a moderate loss of lumbar lordotic angle and Ferguson’s angle was not related to prognosis of low back pain patients. (J Korean Med Rehabil 2020;30(4):143-154)