• Journal of the Korea Safety Management & Science
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• v.12 no.2
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• pp.113-123
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• 2010

The goal of this study is to analyze an effect of productivity elevation. For the goal, the various methods of the productivity elevation were suggested and the system improvements were conducted. The S company was established in Ban-Wol Industrial Complex, Ansan-City, Kyonggi-Do on 2007. The company was hiring 22 employees. The main manufactures were heavy duty equipment parts and the amount of sale was two billion won on 2008. Problems which the company faced were ambiguous production target management and materials loss. To solve the problems, NCT work improvement and automatic welding were induced. There were steel saving of 3,780,000won/month and man-hour saving of 144,000won/month by redesign of the steel sheet for the NCT steel job. Also, changing from handwork to automatic welding, the man-hour saving for the welding job was 320M/H and saving of 4,225,600won/month. The others of systematic improvement for productivity elevation were usage of jig and daily equipment checklist.

• Proceedings of the Korean Geotechical Society Conference
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• 2002.03a
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• pp.213-220
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• 2002

Generally it is informed that urethane materials are superior to the others in physical characteristics, durability, ground improvement and the influence to environment . But, the existing urethane methods are too expensive to apply. So this study has analyzed the applicability of TAS method which has developed the existing urethane injection mechanism. From the results, Extending the max-infection distance over l0m from 6m which the existing methods could inject to, TAS method has proved to be economical. Also, the TAS method is obtained quickly to ground improvement effect in various tunnel constructions because rise-time was relatively shorter than that of cement-grouting. Therefore, it is expected that TAS method would be applied a lot for water proof and ground improvement etc. owing to its many advantages mentioned the above.

• Journal of Digital Convergence
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• v.13 no.11
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• pp.571-578
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• 2015

The purpose of this study is to investigate the effect of psychomotor by the emotional behavior disorder children(ADHD) on the improvement of Self-esteem, Depression or Hyperactivity. From the results, there was no significant difference of the main effect between groups about the improvement of Self-esteem, Depression but that of Hyperactivity. About Self-esteem, Depression, Hyperactivity, there was significant difference of the main effect between prior and post and significant difference of the interaction effects between groups and periods. In conclusion, we can know psychomotor program have a positive effect on the improvement of Self-esteem, Depression or Hyperactivity for emotional behavior disorder children(ADHD). Considering that psychomotor, regarding convergence, may have a positive effect on the ADHD children's emotional development, not only motion development, we suggest the emotional behavior disorder children(ADHD) may have to continue to participate in the Psychomotor Activities.

• The Korea Journal of Herbology
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• v.26 no.4
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• pp.133-137
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• 2011

Objectives : Socheongryong-Tang (小靑龍湯, SCRT) has been widely used to treat respiratory disease. In this study, we investigated the protective effects of SCRT on hydrogen peroxide-induced hepatotoxicity. Methods : In the mouse primary liver cells, SCRT was pretreated for 1 h, and 1 mM $H_2O_2$ was treated to mouse primary liver cells. Cell viability was analyzed by using 3- 4,5-Dimethylthiazol-2-yl-2,5-diphenyltetrazolium bromide (MTT) assay. Also, the activity of AST, ALT and LDH were measured for the evaluation the protective effect of SCRT on $H_2O_2$-induced hepatotoxicity. Intracellular ROS level was analyzed by FACS. Results : SCRT pretreatment decreased $H_2O_2$-induced hepatotoxicity and intracellular ROS production. Pretreatment of SCRT significantly reduced the cytotoxic effect induced by $H_2O_2$, associated with reducing DNA fragmentation and AST, ALT, LDH activities. Conclusions : These results suggest that SCRT has protective effect against $H_2O_2$-induced hepatotoxicity.

• The Journal of Asian Finance, Economics and Business
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• v.7 no.9
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• pp.621-629
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• 2020

This research focuses on determining the impact of human resource management activities on the compatibility and work results of employees of Ho Chi Minh Stock Exchange (HOSE) listed companies. The paper includes five parts: introduction, literature review, research methodology, research results, and conclusion and policy implications. The data are collected from the survey of 350 listed companies in HOSE, in which 315 survey notes filled with sufficient information are used for analysis. The paper employs both qualitative method and quantitative method. Group discussion of 10 experts is for qualitative research. Quantitative method performs analysis of Statistics, Cronbach's Alpha, EFA analysis, CFA analysis and SEM model. The results of the research clearly indicate that human resource management (HRM) activities are measured through improving the ability, improving the motivation and improving the opportunity. While compatibility is measured through suitability, connection and sacrifice; whereby HRM activities of ability improvement have a positive effect on the job suitability and connection; HRM activities of motivation improvement have a positive effect on the job suitability, connection and sacrifice; and HRM activities of opportunity improvement have a positive effect on the job suitability, sacrifice and connection; Finally, the job suitability, sacrifice and connection positively affect the work results of employees.

• Journal of Korea Water Resources Association
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• v.35 no.2
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• pp.137-148
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• 2002

The purpose of this study was to examine the effect of water quality improvement due to dredging the bottom deposit at the downstream of a urban river. The finite difference method was used to analyze the water quality variations caused by the depths of dredging and intercepting ratios of the goal years. 21 boring points were selected along the 11.2km river reach running through a metropolitan city. The pollution levels of the deposits from the bored Points were examined by the leaching test. The improvement effect of the water quality, measured as changes of COD, were carried at under drought, minimal, and normal flow. The result indicates that the dredging of the contaminated sludge contributes the improvement of the water quality.

• Journal of Korean Society of Rural Planning
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• v.23 no.4
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• pp.15-26
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• 2017

In analyzing the effect of the central place improvement projects, this study classifies subject residents into two groups of the residents of the project target regions and those of surrounding villages, and conducts verification. As a result of analysis, Variety of cultural programs is the only factor that positively affects the satisfaction level of the residents of the project target region, and it has been analyzed at the significance level of 10% that a one-unit increase in securing rest areas lowers the satisfaction level of the residents of surrounding villages. This shows that the effect of the central place improvement projects currently promoted is at a low level, and there is also a risk of conflict between the residents in the target region and those in surrounding villages. Although there is no statistical significance, analysis shows that a method to provide the residents in surrounding villages with the project-related information and to guarantee their participation in the project enhances the satisfaction level of the residents of surrounding villages. Therefore, institutional improvements reflecting this need to be made.

• Journal of the Korean Solar Energy Society
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• v.38 no.3
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• pp.29-36
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• 2018

The goal of this study is to retrofit the windows of residential buildings and to activate the green remodeling by verifying energy saving and indoor thermal environment. As a result of analysis of the energy saving effect of 458 units window retrofits, it was possible to reduce the energy requirement by 48.20% ~ 54.97%. According to the improvement on indoor environment, it was possible to operate by reducing heating temperature and supply time. The actual gas consumption of the heating period was reduced by 25% compared with that of the window retarder to save 28,968 thousand won of heating energy cost. Resident's satisfaction surveys were conducted one year after window retrofit. More than 80% of the respondents answered that they satisfied the improvement on window performance, indoor thermal environment and indoor sound environment. As a result, we verified the energy saving effect and the improvement on the indoor environment through window retrofits.

• Journal of the Korean Society for Aviation and Aeronautics
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• v.29 no.3
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• pp.44-51
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• 2021

PIP is an abbreviation of 'Performance Improvement Package', which is a package that can improve performance by applying some design changes to existing aircraft. Boeing provides PIP applicable to B777-200, and Airbus provides PIP applicable to A350-900 as standard. PIP provided by Boeing and Airbus is a separate task, but it is expected to reduce fuel consumption by reducing drag through aerodynamic improvements. The PIP applied to the A350-900 includes work such as increasing Winglet Height and re-twisting Outboard Wing. This study is to verify the effect of PIP application of the A350-900 aircraft and use it as basic data for economic analysis. The aerodynamic improvement studies and expected effects of the PIP application were examined, and the actual flight data of the PIP-applied and the non-applied aircraft were compared to confirm the PIP application effect. This paper provides empirical results for the aviation industry on the PIP application efficiency as a method of improving fuel efficiency and reducing carbon emission.

• PNF and Movement
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• v.9 no.1
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• pp.11-19
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• 2011

The purpose of this study was to investigate whether it makes difference to use of the Augmented Feedback Type(Verbal Feedback, VTR Feedback and Verbal & VTR Feedback) to hemiplegic adults on learning of motor skill. For the purpose 15 hemiplegic adults who are received rehabilitation program at H hospital in Hong-Sung, Choong-Nam Province. Subjects were classified into three groups by random assignment; the Verbal Feedback group, the VTR Feedback group and Verbal & VTR Feedback group. Each groups received 5 subjects from hemiplegic adults. Subjects were tested by Timed Up and Go test for 9 weeks. And to find out the improvement measured by Pre-Test, Acquisition Test and Retention Test. To find out the improvement of each group's measures took average and standard deviation. To probate the significance of difference between the improvement conducted the one-way ANOVA and to probate the significance of difference of Acquisition Test and Retention test conducted paired t-test. The results of this study were as follows; First, All of Augmented Feedback Types had a positive effect on hemiplegic adults to learning of motor skill. Second, The Verbal Feedback group and the VTR Feedback group had no significantly difference at Acquisition Test, But They had the most improvement at Retention Test. Third, In hemiplegic adults, the Verbal & VTR Feedback group had the highest Retention Effect.