• Journal of Mechanical Science and Technology
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• v.14 no.10
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• pp.1081-1088
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• 2000

In this paper, a compliance control strategy for robot manipulators that employs a self-adjusting stiffiness function is proposed. Based on the contact force, each entry of the diagonal stiffness matrix corresponding to a task coordinate in the operational space is adaptively adjusted during contact along the corresponding axis. The proposed method can be used for both the unconstrained and constrained motions without any switching mechanism which often causes undesirable instability and/or vibrational motion of the end-effector. The experimental results involving a two-link direct drive manipulator interacting with an unknown environment demonstrates the effectiveness of the proposed method.

• Transactions of the Korean Society of Mechanical Engineers A
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• v.26 no.1
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• pp.113-120
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• 2002

Experimental procedure to measure fracture toughness (J$_{c}$) under mixed mode loading using CTS(Compact Tension-Shear) specimens is described. It\`s loading angle ranges from 0$^{\circ}$ to 45$^{\circ}$ with interval of 157. The general outline of experimental procedure is similar to that of ASTM E8l3-89 fur mode I fracture. Equations fur determining J-integral is quoted from the authors' previous works. The relation between unloading compliance and physical crack size was calibrated. As an example, fracture toughness of aluminum alloy 2024p-7361 was measured and some reasonable results of J$_{c}$ with various loading angles were obtained.

• Journal of Welding and Joining
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• v.11 no.1
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• pp.42-51
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• 1993

In this study, investigations were conducted in calculating parameters of elastic-plastic fracture mechanics using single specimen. The validity of these testing methods was judged by the confirmation of multiple specimen method of stop block test. The results were as follows: In order to measure a fracture toughness using the instrumented impact test, two general requirement must be considered; One, setting up proper impact velocity considered the effect of loading and the other, the necessity of low blow test for obtaining true energy by the compliance correction. It was possible to detect a crack initiation point by calculating the compliance changing rate from a load-defection curve. Criterion of a stable crack growth, $T_{mat}$ could be estimated by using key-curve method for a base metal. and combining Kaiser's rebound compliance with Paris-Hutchison's $T_{appl}$ equation for the brittled zone of welding heat affected.at affected.d.

• Transactions of the Korean Society of Automotive Engineers
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• v.9 no.4
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• pp.204-213
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• 2001

This paper develops the compliance approach to the problem of load sharing between a cracked plate and a cover plate used to bridge the crack. The theory is validated by using calculated stress intensity factors for the covered and uncovered cases and by using stop hole method to reduce experimentally observed growth rates to a common base. Calculations are then made on the effect of cover plate width on fatigue crack retardation in order to demonstrate the predictive capability of the technique.

• Journal of Korean Academy of Nursing
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• v.36 no.7
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• pp.1135-1144
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• 2006

Purpose: The purpose of this study was to analysis the effects of a structured drug education program on knowledge and medication compliance for hemodialysis patients. Method: Hemodialysis patients were recruited from a kidney center, at a university hospital located in G city, Korea. Thirty subjects in the control group received no intervention and 30 subjects in the experimental group received a structured drug education program. Result: There were significant increases in medication knowledge and medication compliance in the experimental group compared to the control group. Conclusion: According to the above results, this education program for hemodialysis patients increased knowledge and medication compliance. These findings suggest that a structured drug education program can be used as an efficient nursing intervention for hemodialysis patients.

• Korean Journal of Adult Nursing
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• v.18 no.3
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• pp.367-376
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• 2006

Purpose: This study was designed to explore the effects of providing individualized education for hemodialysis patients on their knowledge of hemodialysis, compliance of patient role behavior, and physiologic parameters. Method: A quasi experimental design with a non-equivalent control group and a non-synchronized design was used. The experiment was conducted with a total of 40 hemodialysis patients (20 in the experimental group and 20 in the control group) at the artificial kidney center, C University Hospital. The experimental group was provided with individualized education, 30 minutes per session, three times per week, for two weeks. Results: The experimental group had significantly higher knowledge of hemodialysis than the control group after the education. The compliance of patient role behavior was more enhanced in the experimental group than the control group. The experimental group showed significantly higher values of blood urea nitrogen, but not the values of blood creatinine, albumin, kalium, and phosphorus. Conclusion: The individualized education was found to be an effective intervention for improving patients' knowledge of hemodialysis and compliance of patient role behavior.

• Korean Journal of Adult Nursing
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• v.17 no.3
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• pp.484-492
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• 2005

Purpose: This study was undertaken to identify the effect of providing information on anxiety, knowledge and compliance in permanent pacemaker patients. Method: A quasi experimental design with non-equivalent control group and non-synchronized design was used. The subjects of this study were 50 patients who had received permanent pacemaker implantation at a university hospital in Seoul. They were divided into an experimental group of 22 patients who received education and a control group of 28 patients. The education was composed of group education(twice) and individualized reinforcement education(once) using an education booklet. Results: Anxiety decreased in the experimental group. Knowledge significantly increased in the experimental group compared to that in the control group. Compliance significantly increased in the experimental group. Conclusion: It can be concluded that providing information is effective for reducing anxiety, increasing knowledge and improving compliance of the permanent pacemaker patients.

• Journal of Home Health Care Nursing
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• v.24 no.3
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• pp.275-283
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• 2017

Purpose: This study was conducted to examine the characteristics and knowledge of needlestick injuries, and compliance with standard precautions, in healthcare workers. Method: The participants were 185 healthcare workers working at university hospitals. Data were collected in May 2016 and analyzed using descriptive statistics, t-test, ANOVA, and Pearson correlation coefficients using SPSS 18.0 program. Results: It was found that 45.4% of the subjects had experienced needlestick injuries. The most common rate of getting injured was 1 or 2 times, and the most common reason for the occurrence of needlestick injuires was carelessness(66.6%). The mean scores for knowledge of needlestick injuries and compliance with standard precautions were above average. Significant correlations were found between knowledge of needlestick injuries and compliance with standard precautions in health workers, and Characteristics were related to the significant differences seen in both. Conclusion: These findings indicate that standard precautions and guidelines for the use of sharp instruments should be emphasized in order to prevent needlestick injuries in healthcare workers.

• Journal of muscle and joint health
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• v.18 no.1
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• pp.39-49
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• 2011

Purpose: The purpose of this study was to identify the effects of CD-ROM education on anxiety and self-care compliance in patients undergoing spinal surgery. Method: This study used a nonequivalent control time difference design. A sample of 51 participants received both CD-ROM education (n=25) or booklet education (n=26) regarding spinal surgery procedure and postoperative self-care. The data were collected using a self-administered questionnaire containing State-Trait Anxiety Inventory (STAI Form Y-2), Visual analog scale, and self-care compliance. Result: The level of trait anxiety in the experimental group was not significantly different from that in the control group (t=-6.44, p=.523). The level of state anxiety in the experimental group was significantly lower than in that the control group according to time changes (F=4.17, p=.018). State anxiety showed significantly negative correlation to self-care compliance (r=-.30, p=.034). Conclusion: The education program using CD-ROM for spinal surgery patients can be applied to nursing practice for relieving state anxiety and promoting self-care compliance.

• Journal of the Korean Society of Industry Convergence
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• v.24 no.4_2
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• pp.421-434
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• 2021

The expansion of information sharing activities using online can increase the threat of information exposure by increasing the diversity of approaches to information within an organization. The purpose of this study is to present conditions for improving the information security compliance intention of insiders to improve the level of information security within the organization. In detail, the study applies the theory of planned behavior that clearly explains the cause of an individual's behavior and proposes a way to increase the compliance intention by integrating the social control theory and goal-setting theory. The study presented research models and hypotheses based on previous studies, collected samples by applying a questionnaire technique, and tested hypotheses through structural equation modeling. As a result, information security attitude, subjective norms, and self-efficacy had a positive influence on the intention to comply. Also, attachment, commitment, and involvement, which are the factors of social control theory, formed a positive attitude toward information security. Goal difficulty and goal specificity, which are the factors of goal setting theory, formed a positive self-efficacy. The study presents academic and practical implications in terms of suggesting a method of improving the information security compliance intention of employees.