• Title/Summary/Keyword: internal control effectiveness

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The Clinical Effectiveness of Acupuncture at Palsa(BaXie) for Hand Function in Hemiparetic Patients after Stroke (중풍 편마비 환자의 손 기능 회복에 대한 팔사혈(八邪穴) 자침(刺鍼)의 임상적 효과)

  • Kim, Ja-Young;Jeong, Seon-Mee;Park, Chan-Kyu;Min, Eun-Kyoung;Wang, Teh-Chung
    • Journal of Acupuncture Research
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    • v.25 no.5
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    • pp.97-104
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    • 2008
  • Objectives : Investigate the effectiveness of an acupuncture at Palsa(BaXie) in hemiparetic patients after stroke. Methods : Acupuncture at Palsa(BaXie) applied to thirty one hemiparetic patients who had been by general treatment after stroke. The other thirty one hemiparetic patients had only general treatment. Outcomes were assessed by Medical research council scale motor grade(MRCSMG) of wrist, grip power, Fugl-Meyer Motor Scale(FMS) of hand, and Motricity Index(MI) of fingers. Results : The patients exhibited substantial improvements on grip power and Fugl-Meyer Motor Scale of hand, but Medical research council scale motor grade of wrist and Motricity Index of fingers have not significantly meaningful differences between sample and control group. Conclusions : Acupuncture at Palsa(BaXie) may be an effective method of improving hand function of hemiparetic patients after stroke.

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Development of Shape Optimization System using Stress Control (응력 제어를 통한 형상 최적화 시스템 개발)

  • 한석영;배현우
    • Journal of the Korean Society of Manufacturing Technology Engineers
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    • v.8 no.3
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    • pp.52-58
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    • 1999
  • In this study, the growth-strain method was used for shape optimization. The adequate value of growth ratio in the method was used the value obtained by volume control. And the linear PID control theory was applied to control internal stresses by stresses required by a designer. The effect of the values of $K_{P}$, $K_{I}$, and $K_{D}$ was investigated and the adequate values of $K_{P}$, $K_{I}$, and $K_{D}$ were determined empirically. Finally, a shape optimal design system was built up by the improved the growth-strain method with a commercial software I-DEAS. The effectiveness and practicality of the developed shape optimal design system was verified by some examples.les.les.les.

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Nonlinear Input-Output Feedback Linearizing Control of a Single Machine Infinite Bus Power System (1기 무한모선 전력계통의 배선형 입출력 되먹임 선형화 제어)

  • Kim, Dong-Gun;Kim, Seok-Kyoon;Yoon, Tae-Woong
    • Journal of Institute of Control, Robotics and Systems
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    • v.13 no.1
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    • pp.1-5
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    • 2007
  • Many nonlinear controllers for the power system are based on nonlinear models involving the power angle as an element of the state, and therefore the reference value for the power angle is needed. As this reference value is not generally available, it is difficult to apply such nonlinear control methods in practice. To deal with this problem, we present an input-output feedback linearizing control scheme by selecting the output as a combination of the squared voltage and the relative frequency. It is shown that the internal dynamics are locally stable with controllable damping, and that the frequency remains bounded for all time. Simulations illustrate the effectiveness of the proposed method.

Urinary 5-hydroxyindoleacetic Acid(5-HIAA) Excretion Before and During Cisplatin Chemotherapy in Patients with Intrathoracic Malignancy (흉곽내 악성종양환자에서 Cisplatin 투여시 5-hydroxyindoleacetic Acid (5-HIAA)의 변화)

  • Yang, Dong-Gyoo;Chang, Yoon-Soo;Kim, Young-Sam;Lee, Jun-Gu;Ahn, Kang-Hyun;Park, Jae-Min;Kim, Se-Kyu;Chung, Hyun-Cheol;Chang, Joon;Ahn, Chul-Min;Kim, Sung-Kyu;Lee, Won-Young
    • Tuberculosis and Respiratory Diseases
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    • v.46 no.6
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    • pp.811-816
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    • 1999
  • Background : Nausea and vomiting associated with chemotherapy are common side effects which remain difficult to control. Acute phase nausea and vomiting (0-24 hours after induction of chemotherapy) parallels plasma serotonin release, which explains the effectiveness of $5-HT_3$ receptor antagonists. Serotonin released from gastrointestinal enterochromaffin cells may mediate chemotherapy-induced emesis. In this study, we analyzed urinary excretion of 5-HIAA, the main metabolite of serotonin. Methods : Eight men and four women were studied in their cisplatin chemotherapy cycle. Urinary 5-hydroxyindoleaoetic aicd (HIAA) levels were determined before and during a 24-hour period under ondansetron prophylaxis. Results : Urinary 5-HIAA excretion for a 24-hour period was increased in all patients after induction of cisplatin (P=0.002). Conclusion : Cisplatin chemotherapy is associated with serotonin release in the acute phase. Our finding may provide evidence for a relationship between emesis and serotonin following cisplatin chemotherapy.

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The Effectiveness of Acupuncture and Moxibustion Treatment for Mastitis: A Systematic Review (유방염의 침구 치료에 대한 체계적 문헌고찰)

  • Jeong, Seo-Yoon;Sohn, Yu-Jin;Jeong, Min-Jeong;Lee, Eun-Hee;Jang, In-Soo
    • The Journal of Korean Obstetrics and Gynecology
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    • v.30 no.3
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    • pp.29-39
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    • 2017
  • Objectives: The purpose of this study is to investigate the effectiveness of acupuncture and moxibustion for mastitis. Methods: We used ten databases including Embase, PubMed, and CNKI to investigate the literatures of mastitis using the keywords "mastitis" and "acupuncture", "breast inflammation" and "acupuncture", "mastitis" and "needle", "breast inflammation" and "needle", "mastitis" and "moxibustion". We excluded studies which included treatments that could affect the judgement of the effectiveness of acupuncture treatment, and the control group was limited to antibiotics. The quality of the paper was evaluated by Risk of Bias. A meta-analysis was performed using a "Review manager" to see the effectiveness of acupuncture and moxibustion compared to antibiotics. Results: Only six RCT were finally selected. Five studies use the total effective rate as a evaluating index, and it was significantly higher than that of the control group in two studies. In other three studies, acupuncture showed similar effectiveness to antibiotics. Meta-analysis was performed through three studies, there was no statistically significant difference in total effective rate between acupuncture and antibiotic treatment. Conclusions: Analysis of six RCT showed that acupuncture and moxibustion seem to have many possibilities as one of the treatments for mastitis. However the number of documents is not sufficient, more research should be done to obtain reliable information.

Experimental Studies on the Effects of Palmiwon (팔미원(八味元)이 성기능(性機能)과 항피로(抗疲勞)에 미치는 영향(影響))

  • Kim, Sang-Woo;Du, Ho-Kyung
    • The Journal of Internal Korean Medicine
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    • v.10 no.1
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    • pp.81-91
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    • 1989
  • It has been known for a long time that Palmiwon water extract can be prescribed for the treatment of deficiency of Yang in oriental medicine. But the exact mechanism of it has not been Known yet. In the present experiments, it was attempted to explain the effect of Palmiwon water extract on the serum Hormone level in rabbits and the antifatigue in mice. Palmiwon water extract oral intake showed a increase of serum hormone level in rabbits and the effects of the antifatigue in mice. The results obtained were as follows. 1. The administration of this medicine was observed to cause continuously a significant increase of the testosterone content in the serum from the 7th day to the 21th day. 2. The estradiol centent in the serum, as compared with the control experiment, was seen to increase significantly by the administration of this medicine from the 7th day to the 21th day. 3. The LH and FSH content in the serum, as compared with the control experiment, indicated a tendency toward an increase by the administration of this medicine from the 7th day to the 21 th day, but with no significant difference. 4. In the effect to Palniwon on the antifatigue in mice, swimming time was prolonged in both sample A, B groups than control group, and significance revealed in both sample A, B groups. These data suggest that Palmiwon water extract can increase serum hormone level and that it can have therapeutic effectiveness to the antifatigue.

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A Study of the Effectiveness of Hwanggeum-tang and Gamchosasim-tang in the Mice Model of Inflammatory Bowel Disease (염증성 장 질환 동물 모델에서 황금탕과 감초사심탕의 효능 연구)

  • Kim, Young-kwang;Moon, Young-ho
    • The Journal of Internal Korean Medicine
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    • v.42 no.3
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    • pp.351-374
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    • 2021
  • Objectives: This study investigates the mechanism of Hwanggeum-tang (HGT) and Gamchosasim-tang (GST) on inflammatory bowel disease (IBD). Methods: The mice (C57BL/6N) were treated with distilled water and 3% dextran sulfate sodium (DSS) to experimentally induce ulcerative colitis. The mice were divided into 7 groups of (6 mice: normal, negative control, positive control (with sulfasalazine), 4 experimental groups (with HGT and GST, respectively). RAW 264.7 cells were used for cell experiments. The experiment was conducted in two ways: in vitro and in vivo. Results: In the experimental group (HGT, GST) of in vitro experiments, NO production decreased, and significant changes in gene expression and protein activation were observed. The length of the colon recovered in the experimental groups (HGT, GST) of the in vivo experiment was longer than that of the negative control group, and the mucosal barrier was recovered. Sone significant changes in the amount of mRNA expression were partially observed, and significant changes in protein activation also were confirmed. Conclusions: HGT and GST are effective in treating IBD caused by DSS. In the same herbal preparation group, the higher the concentration, the better the experimental effect, and when the same concentration was tested, HGT was more effective than GST. Herbal medicine has a higher antioxidant effect than sulfasalazine, so it is also excellent for cell protection.

Design of Force Estimator Based on Disturbance Observer (외란 관측기에 기반을 둔 힘 추정기 설계)

  • 엄광식;서일홍
    • The Transactions of the Korean Institute of Electrical Engineers A
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    • v.48 no.9
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    • pp.1140-1146
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    • 1999
  • In this paper, a force estimation method is proposed for force control without force sensor. For this , a disturbance observer is applied to each joint of an {{{{ { n}_{ } }}}} degrees of freedom manipulator to obtain a simple equivalent robot dynamics(SERD) being represented as an n independent double integrator system. To estimate the output of disturbance observer due to internal torque, the disturbance observer output estimator(DOOE) is designed, where uncertain parameters of the robot manipulator are adjusted by the gradient method to minimize the performance index which is defined as the quadratic form of the error signal between the output of disturbance observer and that of DOOE. when the external force is exerted, the external force is estimated by the difference between the output of disturbance observer and DOOE, since output of disturbance observer includes the external torque signal as well as the internal torque estimated by the output of DOOE. And then, a force controller is designed for force feedback control employing the estimated force signal. To verify the effectiveness of the proposed force estimation method, several numerical examples and experimental results are illustrated for the 2-axis direct drive robot manipulator.

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The Correlations among the Categorized Quality Cost Factors on SMEs (Small & Medium-sized Enterprises) (중소 제조기업의 품질비용 행태에 관한 실증 연구)

  • Lee, Sang-Choon;Koo, Il-Seob
    • Proceedings of the Safety Management and Science Conference
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    • 2011.04a
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    • pp.731-746
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    • 2011
  • The successful and sustainable growth of SMEs depends on their ability of strengthen their competitiveness in quality and cost and service more than anything else as a fundamental of operation. Among these key competitive factors of SMEs, quality is the most critical factor in manufacturing business fields. Because quality strongly influence cost and service performance on this manufacturing business field. There are many different ways to improve the quality performance but it needs proper management decision to choose the best way what can maximize outputs with minimum inputs. And it needs effective measurement methods and some indicators to analysis the quality performance properly. The quality cost is one of the simplest key indicators to measure the quality performance and the effectiveness of quality related management decisions. The major purpose of this study is to diagnose the categorized current level of actual quality cost of local SMEs to maximize their quality management effectiveness through comparing their level with others what's expressed in early studies. In this study, through survey on local SMEs, we found that their average annual quality cost ratio versus turnover - Total amount of annual quality cost divided by annual turnover - is around 3.69% excluded some SME's performances what have different quality control measures with others. And we found some results what corresponded with the early studies on the correlations between those categorized quality costs factors and some discrepancies between some of the literature model and the early case study results as follows. There were negative correlations between the Prevention costs and the External failure costs, and the Appraisal costs and the External failure costs, and there was positive correlation between the Appraisal costs and Internal failure costs same as early studies. But, we couldn't found any strong negative correlations between the Cost of control - Preventive costs & Appraisal costs - and the Cost of Failure of control - Internal & External failure costs -. It reveals not only the lack of effectiveness on their preventive or appraisal activities but also it can reveal there were so many effective ways to prevent the failure costs properly such as some innovative investment on Factory automation includes Error Proofing and more preventive actions to improve the effectiveness of the typical management methods likes CE (Concurrent Engineering), APQP (Advanced Product Quality Planning), FMEA (Failure Mode & Effect Analysis) etc.

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Nonlinear Input-Output Feedback Linearizing Control for Power System Stabilization (전력계통 안정화를 위한 비선형 입출력 궤환 선형화 제어기)

  • Kim, Dong-Gun;Yoon, Tae-Woong
    • Proceedings of the KIEE Conference
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    • 2004.11c
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    • pp.672-674
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    • 2004
  • Many nonlinear controllers for the power system are based on nonlinear models involving the power angle as an element of the state, and therefore the reference value for the power angle is needed. As this reference value is not generally available, it is difficult to apply such nonlinear control methods in practice. To deal with this problem, we present an input-output feedback linearizing control scheme by selecting the output as a combination of the squared voltage and the relative frequency. It is shown that the internal dynamics are locally stable with controllable damping, and that the frequency remains bounded for all time. Simulations illustrate the effectiveness of the proposed method.

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