• Title/Summary/Keyword: compliance control

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Compliance Analysis and Vibration Control of the Safe Arm with MR-based Passive Compliant Joints

  • Yun, Seung-Kook;Yoon, Seong-Sik;Kang, Sung-Chul;Yeo, In-Teak;Kim, Mun-Sang;Lee, Chong-Won
    • 제어로봇시스템학회:학술대회논문집
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    • 2003.10a
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    • pp.2010-2015
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    • 2003
  • In this paper, a design and control of the safe arm with passive compliant joints(PCJ) is presented. Each PCJ has a magneto- rheological damper and maximum 6 springs. Compliance analysis in Cartesian space is performed with the compliance ellipsoid; this analysis shows a map between compliance in the joint space and compliance in Cartesian space. Vibration control of the arm using an input shaping technique is also presented; the results of a simulation and an experiment prove that a fast motion of the safe arm without residual vibration can be performed.

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Synthesis of a planar 3 degree-of-freedom adjustible compliance mechanism

  • Kim, Whee-Kuk;Yi, Byung-Ju;Kim, Dong-Gu
    • 제어로봇시스템학회:학술대회논문집
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    • 1994.10a
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    • pp.334-339
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    • 1994
  • In this work, we propose a planar three degree-of-freedom parallel mechanism as another type of assembly device which utilized joint compliances. These joint compliances can be adjusted either by properly replacing the joint compliances or by actively controlling stiffness at joints, in order to generate the desired operational compliance characteristics at RCC point, The operational compliance matrix for this mechanism is explicitly obtained by symbolic manipulation and its operational compliance characteristics are examined, it is found that the RCC point exists at the center of the workspace when the mechanism maintains symmetric configurations. Compliance characteristic and its sensitivity of this mechanism is analyzed with respect to the magnitude of the diagonal compliance components and two different matrix norms measuring compliance sensitivity. It is expected that the analysis results provide the designer with a helpful information to determine a set of optimal parameters of this RCC mechanism.

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Short-term Glycemic Control and the Related Factors in Association with Compliance in Diabetic Patients (당뇨병 환자의 치료순응도에 따른 단기간 혈당조절정도와 관련 요인)

  • Kim, Gui-Young;Kim, Bo-Wan;Park, Jae-Yong
    • Journal of Preventive Medicine and Public Health
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    • v.33 no.3
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    • pp.349-363
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    • 2000
  • Objectives : Generally, it seemed that the therapeutic result in diabetic patients was changed by compliance. This study was conducted on the basis of assumption that the therapeutic result id diabetic patients could control according to compliance. This study was conducted to analyze the related factors in association with compliance to drug, diet and exercise therapy. Methods : 224 diabetic patients in Kyungpook National University Hospital were selected through the interviews and HbA1c values from 1 Jan. to 28 Feb.1997. The drug compliance was tested by regularity of drug administration, the diet compliance was tested by restriction of food, exactly allocation, balance of nutrient, measuring food and the exercise compliance was tested by regularity of exercise per day. We assessed compliance by percentage, $x^2-test$ and generalized logit regression model(method:enter). Results : The significant variable was the satisfaction to medical personnels in drug, the knowledge to disease in diet, the participation of the diabetic education in exercise therapy and the satisfaction to medical personnels in HbA1c. Using the generalized logit model(method : enter) in compliance change, the significant variables were the satisfaction to medical personnels and the complication in drug; the significant variables were the age at the first diagnosis, the family history, the concern of health, the knowledge of disease, the self-exertion for therapy and the complication in diet: the only significant variable was the gender in exercise therapy. Conclusions : The degree of glycemic control in diabetic patients was influenced by compliance. In order to improve patient's compliance, we must foster the knowledge on the diseases, lead participation for diabetic education. Because the satisfaction to medical personnels was the important variables, we must build up good relationship between doctors and patients.

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A Neurofuzzy Algorithm-Based Advanced Bilateral Controller for Telerobot Systems

  • Cha, Dong-hyuk;Cho, Hyung-Suck
    • Transactions on Control, Automation and Systems Engineering
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    • v.4 no.1
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    • pp.100-107
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    • 2002
  • The advanced bilateral control algorithm, which can enlarge a reflected force by combining force reflection and compliance control, greatly enhances workability in teleoperation. In this scheme the maximum boundaries of a compliance controller and a force reflection gain guaranteeing stability and good task performance greatly depend upon characteristics of a slave arm, a master arm, and an environment. These characteristics, however, are generally unknown in teleoperation. It is, therefore, very difficult to determine such maximum boundary of the gain. The paper presented a novel method for design of an advanced bilateral controller. The factors affecting task performance and stability in the advanced bilateral controller were analyzed and a design guideline was presented. The neurofuzzy compliance model (NFCM)-based bilateral control proposed herein is an algorithm designed to automatically determine the suitable compliance for a given task or environment. The NFCM, composed of a fuzzy logic controller (FLC) and a rule-learning mechanism, is used as a compliance controller. The FLC generates compliant motions according to contact forces. The rule-learning mechanism, which is based upon the reinforcement learning algorithm, trains the rule-base of the FLC until the given task is done successfully. Since the scheme allows the use of large force reflection gain, it can assure good task performance. Moreover, the scheme does not require any priori knowledge on a slave arm dynamics, a slave arm controller and an environment, and thus, it can be easily applied to the control of any telerobot systems. Through a series of experiments effectiveness of the proposed algorithm has been verified.

The Relationship among Patients Sick-role Behavior Compliance, Health Belief and Health Locus of Control in Patients with Diabetes Mellitus Visiting Public Health Center (보건소 내소 당뇨병 환자의 건강신념, 건강 통제위성격과 환자역할행위 이행과의 관계)

  • Kong, Kyung-Ja;Tae, Young-Sook;Sahn, Sue-Kyung
    • Journal of Korean Academic Society of Home Health Care Nursing
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    • v.9 no.2
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    • pp.103-113
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    • 2002
  • Purpose: This study was conducted to explore the relationship among health belief. health locus of control and patients sick-role behavior compliance of diabetic mellitus patients visiting public health center. Method: The subjects of this study were 193 of the diabetic patients who were visiting 4 Public Health Center in B city. The instrument used for measuring health belief was Park's(1985). for health locus of control was Wallston. et al's(1978) and for sick-role behavior compliance was Park's(1984). The data were collected with structured questionnaires; total 58 items contained about health belief. health locus of control and sick-role behavior compliance from 1st to 31st July. 2001. The data was analyzed by the SPSS/PC programs using t-test. Pearson's correlation coefficient. ANOVA and Scheffe-test. Result: The average score of the health belief was $57.99\pm9.45$ health locus of control was $66.83\pm9.48$ and sick-role behavior compliance was $42.81\pm7.00$. Statistically significant factors influencing the health belief among social demographic characteristics were family number(F=3.818. p=0.024), monthly income(F=5.153, p=0.002), time of diagnosis(F=3.937. p=0.002) and difficult to control disease(F=5.803. p=0.000). The significant factors influencing the health locus of control were marital status(F=4.669. p=0.010). Also significant factors influencing the sick-role behavior compliance were monthly incomes(F=5.245, p=0.000). the time of diagnosis(F=4.424. p=0.001) and admission to hospital with diabetes(F=9.031. p=0.000). There was negative mild correlation comparatively between health belief and sickrole behavior compliance(r=-0.142, p<0.05) but no correlation in sensitiveness/severity, barrier, benefit(p<0.05). There was no correlation between internal. external. chance health locus of control and sick-role behavior compliance (P>0.05). Conclusion: There was a negative weak relationship between health locus of control and patient's sick role behavior compliance. Therefore further study to investigate the relating factor of the sick role behavior compliance among above of middle aged diabetes mellitus patients is necessary.

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Dietary Compliance among Men Participating in a Controlled feeding Study of fiber Supplementation

  • Yoon, Hei-Ryeo
    • Journal of Nutrition and Health
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    • v.31 no.5
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    • pp.957-964
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    • 1998
  • The study was undertaken to assess the degree to which subjects were compliant with a specific metabolic diet in a controlled outpatient feeding study. The study consisted of a two-week control period in which subjects consumed a control diet consisting of 38-40% fat, 18-20% protein, 40-42% carbohydrate, followed by a three-week experimental period during which each subject consumed the control diet plus one of the four fiber supplements(20g/4ay) assigned on a random basis on the trust day. All meals were prepared and eaten in a metabolic feeding laboratory, with the exception of Saturday and Sunday meals that were packed for take-out. Fifty-seven healthy adult men, aged 18-65 years participated in the study. Dietary compliance index(CI) defined as the percent deviation of actual consumption from the prescribed food's and unconsumed prepared foods. The CI reflected the additional 'non-prescribed foods' and unconsumed 'prescribed foods'. A CI was calculated for all subjects. A CI of 5% or more was defined as poor compliance. Overall, dietary compliance was substantially improved for the entire group over the course of the study. Significant increase in compliance far energy and macronutrient intake occurred between the baseline and experimental periods. Within a non-obese group, dietary compliance fir energy improved from 5.5% to 3.3% by the end of the study(week 1vs week 5, respectively, p<0.05). However, between non-obese and obese group, dietary compliance was not different. (Korean J Nutrition 31(5) : 957-964, 1998)

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Design of a 6-axis Compliance Device with F/T Sensing for Position/Force Control (위치/힘 동시제어를 위한 F/T측정 기능을 갖는 6축 순응기구 설계)

  • Kim, Han Sung
    • Journal of the Korean Society of Industry Convergence
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    • v.21 no.2
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    • pp.63-70
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    • 2018
  • In this paper, the design of a novel 6-axis compliance device with force/torque sensing capability and the experiment results on force measurement are presented. Unlike the traditional control methods using a force/torque sensor with very limited compliance, the force control method employs a compliant device to provide sufficient compliance between an industrial robot and a rigid environment for more stable force control. The proposed compliance device is designed to have a diagonal stiffness matrix at the tip and uses strain gauge measurement which is robust to dust and oil. The measurement circuit is designed with low-cost IC chips however the force resolution is 0.04N.

Factors Influencing Level of Awareness and Compliance with Vancomycin-Resistant Enterococcus Infection Control among Nurses in Intensive Care Units (중환자실 간호사의 반코마이신 내성 장구균 감염관리에 대한 인지도, 이행도 및 관련요인)

  • Park, Young-Mi;Park, Hyoung-Sook;Park, Kyung-Yeon
    • Journal of Korean Academy of Fundamentals of Nursing
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    • v.15 no.4
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    • pp.531-538
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    • 2008
  • Purpose: The purpose of this study was to identify factors influencing Vancomycin-resistant enterococcus infection control among nurses in intensive care units. Method: Data were collected from August 15 to October 14, 2007 from 188 nurses working in intensive care units. The nurses answered a 26 item-questionnaire, which included management of the cohort (14 items), hand washing (6 items) and management of the environment (6 items). Descriptive statistics, t or F test, ANOVA, and multiple regression analysis were used with SPSS PC+ 14.0 to analyze the data. Results: The participant's level of awareness of Vancomycin-resistant enterococcus infection control was 3.87; that of compliance was 3.74. Significant factors influencing the level of compliance with Vancomycin-resistant enterococcus infection control were'the level of the awareness' and 'the type of intensive care unit'. These two variables accounted for 21.0% of variance for compliance with the Vancomycin-resistant enterococcus infection control among the participants. Conclusion: In order to develop a strategy to increase the compliance with Vancomycin-resistant enterococcus infection control, it is necessary to be concerned about 'the level of the awareness', 'the type of intensive care unit;', and 'experiences of caring for patients with Vancomycin-resistant enterococcus'.

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Knowledge and Compliance Level of the Multidrug-resistant Organisms of Nursing Students (간호대학생의 다제내성균에 대한 지식 정도와 감염관리 이행도)

  • Kim, Kyung-Mi;Kim, Og-Son;Jeon, Mi-Yang
    • Journal of Korean Biological Nursing Science
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    • v.14 no.1
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    • pp.8-15
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    • 2012
  • Purpose: This study was undertaken to identify the knowledge and compliance level of nursing students. It was based on self-administered questionnaires about multidrug-resistant organisms (MDROs). Methods: The test group was 184 nursing students who had contact with MDROs during clinical practice. The study was conducted from May 1 to September 16, 2011. Results: The average knowledge level of MDROs was 16.20 (correct answer rate: 67.5%). The nurses' compliance level of MDROs infection control was on average 40.50 (range: 13-52). "Hand hygiene" ranked highest in the compliance level of MDROs infection control. The lowest level of MDRO infection control was the wearing of disposable aprons or gowns. Conclusion: This study demonstrated the nursing students' knowledge and the compliance level of infection control. We suggest that nursing students receive mandated systematic education of MDROs in the nursing curriculum. And clinical practice experience of MDROs infection control is required in hospitals. These steps will help prevent transmission of MDROs in nursing settings.

Predictors for Standard Precautions Compliance in Healthcare-Associated Infection Control among Nursing students (간호대학생의 감염관리 표준주의 수행에 영향을 미치는 요인)

  • Kim, Myung Sook;Kim, Jin Sun
    • The Journal of the Korea Contents Association
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    • v.17 no.12
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    • pp.569-581
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    • 2017
  • The purposes of this study were to investigate knowledge, attitude, subjective norms, perceived behavior control, behavioral intention, and compliance of standard precautions (SPs) in healthcare-associated infection (HAI) control among nursing students and to identify influencing factors for SPs compliance in HAI control. A descriptive correlation study was conducted. Participants were 223 nursing students recruited from three universities in a metropolitan city. Data were collected by self-administered questionnaires. On average, 87.0% of the knowledge questions were answered correctly. The mean SPs compliance score was 4.30 out of 5. There was no significant correlation between SPs knowledge and compliance. There were statistically significant correlation between SPs compliance and attitude, subjective norms, perceived behavior control and behavior intention. Perceived behavior control and behavior intention were significant predictors for SPs compliance among nursing students and these two variables explained 21.9% variance of SPs compliance among nursing students. Although, nursing students' SPs knowledge and compliance were acceptable level, their perceived behavior control was relatively low. SPs compliance among nursing students can be enhanced by increasing their behavior intention and perceived behavioral control. Education program for SPs in HAI control for nursing students which is designed with appropriated educational strategies is need to be developed and evaluated to enhance their capacity to deal effective and safe clinical practice.