• 한방재활의학과학회지
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• 제19권2호
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• pp.27-49
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• 2009

Objectives : The purpose of this study was to investigate the effects of Yanghyuljanggeungunbo-tang(Yangxuezhuangjinjianbu-tang) and Cervi Cornu Parvum pharmaco-acupuncture in Spinal Cord Injury(SCI)-induced rats. Methods : The subjects were divided into 5 groups ; Normal, Control no treatment after SCI, Experimental I taken with Yanghyuljanggeungunbo-tang (Yangxuezhuangjinjianbu-tang) 500 mg/kg $0.5m{\ell}$ daily after inducing SCI. Experimental II taken with Cervi Cornu Parvum pharmaco-acupuncture at Taegye(KI3) and $Yangnungch{\acute{o}}n$(GB34) after inducing SCI and Experimental III taken with Yanghyuljanggeungunbo-tang(Yangxuezhuangjinjianbu-tang) 500 mg/kg $0.5m{\ell}$ and Cervi Cornu Parvum pharmaco-acupuncture at KI3 and GB34 to SCI-induced rats. After each operation, the present author observed the motor behavior recovery and nerve regeneration by analysis of the motor behavior tests, EMG, hematological(AST, ALT, WBC), histological and immunological changes. Rats were tested at modified Tarlov test at the 1st, 2nd, 3rd, 4th day, and Motor behavior test at 1st, 3rd, 7th, 14th, 21st day. Results : Results are as follows. 1. All the experimental groups were improved compared with control group in the motor behavior tests including Tarlov test, Basso-Beattle-Bresnahan locomotor rating scale, modified inclined plane test, open field test, grid walk test and narrow beam test. Especially Experimental III was improved significantly among other groups. 2. In EMG test, H wave appeared weak only in Experimental III. And M wave was increased significantly in Experimental III. 3. All the experimental groups were significantly decreased compared with control group in serum AST, serum ALT and serum WBC tests. 4. significantly decreased in Tumor Necrosis Factor-${\alpha}$ test compared with the first day of SCI. 5. Muscle contraction and denaturation of all the experimental groups were inhibited in histological observations of gastrocnemius muscle. Especially, those of experimental III was more effective. 6. NGF and BDNF of spinal cord gray matter in all the experimental groups were increased compared with control group. Especially, those of experimental III was more effective. Conclusions : As above, it can be suggested that Yanghyuljanggeungunbo-tang(Yangxuezhuangjinjianbu-tang) and Cervi Cornu Parvum pharmaco-acupuncture may improve motor behavior, EMG, hematological, histological and immunological findings in Spinal Cord Injury(SCI)-induced rats. Especially, effects will be somewhat better in combination of these two treatments.

• 한국정보전자통신기술학회논문지
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• 제3권4호
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• pp.3-9
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• 2010

Brushless DC(이하 BLDC) 모터는 에너지절감 차원이나 속도 및 토크제어에 대한 우수성 때문에 그 활용이 점차 증가하고 있다. 그러나 다양한 환경의 응용분야에 따라 제어기 및 구동회로가 별도로 필요하고, 또 모터와는 별개로 외장형으로 설계되어 있어 설치 및 운용에 어려움이 있다. 본 논문에서는 유증기회수장치(VRS)용으로 BLDC모터와 제어회로가 일체화되도록 제작하였으며, 마이크로프로세서를 적용하여 다양한 주변 환경에 따른 지능적인 동작이 가능하도록 설계하였다. 또한 TCP/IP 모듈을 내장하여 원격지에서 웹을 통해 제어할 수 있도록 설계하여 작동의 편의성을 고려하였다.

• 대한한방소아과학회지
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• 제28권1호
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• pp.24-31
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• 2014

Objectives The purpose of this study is to know the effect of acupuncture on brachial plexus palsy due to birth injury. Methods We decided to treat one week of Vojta therapy and occupational therapy, but other were combined, and then add three weeks of acupuncture treatment as well. Results Right clavicle fracture at birth brachial plexus injury due to decreased locomotion of the right upper extremity, muscle weakness in children aged 7 months to Vojta therapy, occupational therapy and acupuncture, when performed in conjunction mobility increase of the shoulder joint, elbow support improvement, recovery of motor function of the hand grip, etc. to obtain a significant motor function recovery improvement. Conclusion Acupuncture was a good treatment of choice for the better shoulder, joint and hands movements.

• 한국추진공학회:학술대회논문집
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• 한국추진공학회 2006년도 제27회 추계학술대회논문집
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• pp.419-422
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• 2006

본 논문에서는 솔비톨을 연료로 하는 고체로켓의 총체적인 성능향상에 중점을 두었다. 동체의 형상과 로켓모터의 그레인 및 케이스설계, 회수장치 등의 관점에서 새로이 설계된 로켓과 선행으로 제작되었던 로켓을 비교하였다. 각 구성품의 실험을 통한 데이터 비교를 통해 설계 개선하여 질량비를 향상시키고, 안전규정의 범위를 벗어나지 않는 로켓을 설계하였다.

• 척추신경추나의학회지
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• 제3권1호
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• pp.65-72
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• 2008

Objects : This study was to report a clinical effect of Chuna Treatment for Cervical Myelopathy due to disc herniation. Methods : The patient was diagnosed as Cervical Myelopathy due to disc herniation through Cervical spine MRI and treated by cervical traction technique of Chuna Treatment with conservative management. JOA score(Japanese Orthopedic Association score), Recovery rate of Hirabayashi, VAS(Visual Analogue Scale), Dynamometer score, ROM(Range of Motion) and Motor weakness Grade were used. Results and Conclusion : JOA score, VAS, Dynamometer score, ROM and Motor weakness Grade were improved and Recovery rate was 100%.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 1998년도 제13차 학술회의논문집
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• pp.419-422
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• 1998

This paper presents how to design speed control of wound rotor induction motors with slip energy recovery. The speed is limited at some range of sub-synchronous speed of the rotating magnetic field. The problem with speed control by adjusting resistance value in the rotor circuit reduces the efficiency of power, because of the slip energy is lost when it passes through the rotor resistance. The control system is designed to maintain efficiency of motor, where it recovers loss energy by returning it to the system to improve the efficiency. A new PI control method of adaptive control [1］,［13］is applied for the system with cascade type PI controller on the main loop to keep the speed constant and the internal loop to adjust the rotor appropriated current of the load provides the good transient response without overshoot.

• 전기학회논문지P
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• 제67권4호
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• pp.208-213
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• 2018

In this paper, we studied the control strategy of applying STATCOM(static synchronous compensator) to mitigate the FIDVR(fault induced delayed voltage recovery) phenomenon. The proportion of motor loads is gradually increasing which might affect power system stability. Excessive reactive power consumption by the stall of the motor loads causes FIDVR phenomenon. In addition, the low inertia of the small HVAC(heating, ventilation and air conditioner) unit will not separate itself in the event of a contingency, causing system instability. For this reason, we have developed a control strategy that utilizes STATCOM efficiently through static and dynamic analysis. Case studies on a Korean power system have validated the performance of the proposed scheme under severe contingency scenarios. The results have verified that the proposed strategy can effectively mitigate FIDVR and improve the stability and reliability of the system.

• 대한정형도수물리치료학회지
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• 제15권2호
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• pp.88-92
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• 2009

Purpose: The purpose of this study was to evaluate the effects of exercise on functional status in stroke patients. The understanding of the course of recovery after stroke and factors affecting outcomes are important in planning and evaluation of stroke rehabilitation. Methods: To predict the outcom of stroke patient, we measured in the beginnig of rehabilitation, on 36 patients. The variables were gender, age, duration of rehabilitation treatment, motor assessment scale(MAS). Results: The patient age in 50-59 years was 41.7%. The stroke left side motor weakness were found 55.6%. The duration of rehabilitation treatment in 2-3 months was 50.0%. In the difference 24.63 for motor assessment scale after a rehabilitation treatment had significantly higher than 10.86 for motor assessment scale at initial. Gender by motor assessment scale after a rehabilitation treatment was 25.7 in male and 23.2 in female(P<0.05). Past history by motor assessment scale after a rehabilitation treatment was 26.7 in hypertension, 24.6 in cardiac disorder and 21.8 in diabetes mellitus(P<0.05). Conclusion: The subjective symptoms of motor assessment scale after a rehabilitation treatment was significantly associated with gender.

• 자원리싸이클링
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• 제15권5호
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• pp.11-16
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• 2006

폐 폴리스티렌과 모터 오일의 혼합물로부터 마이크로웨이브 열분해를 이용하여 유용한 고분자 원료물질의 회수를 위한 연구를 수행하였다. 마이크로웨이브 반응기로 quartz tube를 사용하였으며 마이크로웨이브 흡수체로 실리콘 카바이드를 사용하였다. 공정 변수로 마이크로웨이브 입력 파워를 180에서 250 W까지 변화시켰으며, 마이크로웨이브 조사시간을 30분에서 1시간까지 변화시키며 실험하였다. 열분해를 통하여 얻어진 생성물을 GC/MS를 사용하여 분석한 결과 스티렌, 메틸 스티렌, 톨루엔, 그리고 에틸벤젠이 4개의 주요 회수 성분이었으며, 이 중 폴리스티렌으로부터 스티렌의 회수율은 약 50% 이었다. 열분해에 마이크로웨이브를 사용함으로써 일반 열분해 보다 훨씬 낮은 온도에서 열분해가 이루어졌다.

• Journal of Korean Neurosurgical Society
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• 제45권3호
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• pp.143-150
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• 2009

Objective : The purpose of this study was to investigate the reliable factors influencing the surgical outcome of the patients with traumatic acute subdural hematoma (ASDH) and to improve the functional outcome of these patients. Methods : A total of 256 consecutive patients who underwent surgical intervention for traumatic ASDH between March 1998 and March 2008 were reviewed. We evaluated the influence of perioperative variables on functional recovery and mortality using multivariate logistic regression analysis. Results : Functional recovery was achieved in 42.2% of patients and the overall mortality was 39.8%. Age (OR=4.91, p=0.002), mechanism of injury (OR=3.66, p=0.003), pupillary abnormality (OR=3.73, p=0.003), GCS score on admission (OR=5.64, p=0.000), and intraoperative acute brain swelling (ABS) (OR=3.71, p=0.009) were independent predictors for functional recovery. And preoperative pupillary abnormality (OR=2.60, p=0.023), GCS score (OR=4.66, p=0.000), and intraoperative ABS (OR=4.16, p=0.001) were independent predictors for mortality. Midline shift, thickness and volume of hematoma, type of surgery, and time to surgery showed no independent association with functional recovery, although these variables were correlated with functional recovery in univariate analyses. Conclusion : Functional recovery was more likely to be achieved in patients who were under 40 years of age, victims of motor vehicle collision and having preoperative reactive pupils, higher GCS score and the absence of ABS during surgery. These results would be helpful for neurosurgeon to improve outcomes from traumatic acute subdural hematomas.