• Journal of Korean Society for Atmospheric Environment
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• v.22 no.6
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• pp.821-830
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• 2006

To identify the effect of local air pollutants on the $PM_{2.5}$ level at Gosan, $PM_{2.5}$ composition data, continuous $O_3,\;NO_x,\;SO_2,\;CO$ data, VOCs data, surface wind characteristics, and backward trajectory analysis results were analyzed for the measurements in March 2000 during which high concentrations of mass and anthropogenic ionic species were reported. It was found that the combination of surface wind and continuous gaseous species data can help to identify local effect in Jeju Island. Even in a high $PM_{2.5}$ level case mainly affected by long range transport from China, it was Identified that local effects were also significant for both the duration and pollutants' levels.

• Structural Engineering and Mechanics
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• v.19 no.2
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• pp.217-230
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• 2005

A steel silo traditionally consists of a cylindrical and a conical shell. In order to facilitate emptying operations, the cylinder is placed on local supports. This may lead to dangerous stress concentrations and eventually to local instability of the cylindrical wall. In this contribution, the locally supported cylinder is strengthened by means of ring stiffeners and longitudinal stiffeners and the effect of their dimensions on the buckling stress is investigated. This study leads to a number of diagrams, each of them representing the effect of one of the dimensions on the buckling stress. In each diagram, the failure pattern corresponding to the buckling stress is indicated.

• Transactions of Materials Processing
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• v.31 no.2
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• pp.96-102
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• 2022

The multi-point dieless forming technology is one of flexible forming technologies that can form 3D curved surfaces of various shapes utilizing a lot of punch arrangements. A new technology that can simultaneously apply high-temperature forming and flexible forming technology by fusing local heating effect to such multi-point dieless forming technology was proposed in the present study. A simple local heating multi-point dieless forming apparatus was fabricated to confirm the applicability of this new technology. This equipment was designed to be used as a heat source by inserting heating cartridges in the head of the multi-point punch. Cartridges were used for all individual punches. Using the manufactured equipment, the time to raise the temperature to the target temperature and the surface temperature of the punch head part in contact with the plate were measured. In addition, forming experiments were carried out according to sheet material temperature (100 ℃, 200 ℃, and 300 ℃) to obtain forming results for each condition. The applicability and feasibility of this technology were confirmed through experimental results.

• Korean Security Journal
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• no.54
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• pp.77-99
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• 2018

This study is designed to examine the relationship between the social safety net and the 'satisfaction level of safety life' conducted by local governments and to examine the effects of anarchy on the indicators. To do this, 300 people were sampled using the random sample method in the metropolitan area using the population of residents in the metropolitan area in 2017, and a total of 276 copies were extracted except 24 copies in the final analysis. Regression analysis and path analysis were conducted through structural equation modeling. Bootstrapping was performed to investigate the significance of the mediator effect. In summary, 'CPTED' has a positive effect on 'disorder' and 'safety life satisfaction', but 'municipal safety education' has a positive effect on 'safety life satisfaction' Respectively. 'Local disorder' has a negative effect on 'safety life satisfaction'. As a result of path analysis, the same effect was found. In order to examine mediating effect, bootstrapping showed that regional disorder was mediated only in 'CPTED' and 'safety life'. This result suggests that there is a need for change in the safety education of the community and it supports the precedent study that it is an effective means of safety net for the safety life of the CPTED community in the community. It is one of the nation's most important policies to prepare measures for the safety of the people. The local governments should also ensure the safety of local residents. In this study, the relationship between the local safety net and the disorder and safety life satisfaction was investigated.

• Proceedings of the Computational Structural Engineering Institute Conference
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• 2001.10a
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• pp.537-544
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• 2001

Bridge dynamic behaviors are examined under seismic excitations including the local scour effect. The corresponding simplified mechanical model, which can also consider the effect of other influence elements, is proposed to simulate the bridge motions. The scour depth around the pier is estimated by the CSU equation recommended by the HEC-18, and the local scour effect upon global bridge motions is then investigated by applying various foundation stiffness based upon the reduced embedded depths. From the results, it is found that seismic responses of a bridge with the same scour depth level for both piers increase as the scour depth increase due to the local scour effect. The scour effect is found to be significant under weak excitations and still to be quite notable even for moderate excitations.

• Journal of the Korean Institute of Rural Architecture
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• v.11 no.3
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• pp.1-9
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• 2009

Through 'Local Theme Science Museum' aid program that is one of emphasis promotion strategic project by 2007 'Science.Technology.Cultural Project Plan', raises status of scientific technique by national core ability because all people expand base that understand and support scientific technique, and forms a social atmosphere which is scientific technique is important which scientific technique can be spread widely on national life and society whole, and proceeds target that expand local science museum facilities by a base of local science culture spreading and popularization. Accordingly, to plan balanced regional development and utilize to an advanced base of local science culture spreading because offer a science culture experience opportunity to local inhabitants, 'Local theme science museum' project is doing for that establish more 100 science museums for national.public.private institution in whole country until 2012 year. Support 39 projects to 2008 from 1999 thereby, in January, 2009, 13 'Local theme science museum' is opened and operated. This study examined arrangement preferentially about 'Science.Technology.Cultural Project Plan' that is background of 'Local theme science museum' project. Since surveying science museum which is on opening and operation at the present and analyzed actual conditions and facilities and investigated specification necessity and direction of 'Local theme science museum'. Hereafter, to seek plan for propriety of project by characteristic and difference of 'Local theme science museum' is purpose of this study. Now, need set and promotion of following specification direction for right activation of proceeding 'Local theme science museum' by each area. First, differentiation of theme and justifiability of building, Second, propriety of site position, Third, maximization of synergy effect by mixing concept of 'Specialized Economic Zone for Regional Developmental Policy' and Ecomuseum's 'Theme center'.

• Water for future
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• v.26 no.4
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• pp.107-115
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• 1993

The results of laboratory experiments on the clear-water local scour of cohesionless bed sediment at three types of the pier shape are presented. Based on the experimental data, the relative equilibrium depth of local scour is related to the pier shape, the geometric standard deviation of the bed material, the velocity ratio and the pier Froude number. The relative local scour depths were smallest ant the round-nosed pier and remarkably reduced at the non-uniform bed sediment, comparing with those at the uniform bed material. The effect of sediment grading on the local scour reduction was discussed and compared with Raudkivi and Ettema's experiments.

• Journal of Contemporary Eastern Asia
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• v.15 no.2
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• pp.177-190
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• 2016

One of the main objectives of this paper is to provide insight to understand the effect of natural disasters on local government finance. That is, to analyze local governments' sales tax revenues after Hurricane Ike. Three Texas cities are examined: League City, Pearland, and Sugarland. Based on data collected from the Texas Comptroller's Office and the US Census, we found local governments experience a short-term increase in sales tax revenues and a long-term decline after the hurricane strike the region. On average, a major hurricane has a two-year impact on local government economy. The findings are essential for practitioners because in order to have a prosperous recovery after natural disasters, public managers have to prepare financially for short term changes in their sales tax revenues.

• Journal of Korea Society of Digital Industry and Information Management
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• v.13 no.3
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• pp.133-147
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• 2017

This study aims to investigate the effect of personality traits (Big5) of local government officials on job exhaustion. First, we examine the correlation between personal characteristics of individual employees and self-efficacy and the correlation between factors of civil servants' personality characteristics and job stress. Also, it was confirmed whether self-efficacy had a significant effect on job exhaustion and whether job stress had a significant effect on job exhaustion. In order to empirically study this research model, we held a survey based on the employees of Gangnam-gu, Seoul. The main results of this study are as follows : First, it was confirmed that sincerity among personality characteristics affects positive self-efficacy and neuroticism affects negative self-efficacy. However, it was confirmed that extroversion, affinity, and openness were not correlated with self-efficacy. Second, neuroticism has a positive influence on job stress and openness has a negative effect on job stress. However, there was no correlation between extroversion, affinity, sincerity and job stress. Third, the relationship between self-efficacy and job exhaustion turned out to give a negative effect. Finally, job stress was positively influenced by job exhaustion. Therefore, it is necessary to apply the study on personality characteristics (Big5), job stress, and job exhaustion, which have been studied based on service industries, to local government officials. The purpose of this study is to suggest job training for enhancing personality traits that can help reduce the job burden of local government officials.

• 지역과문화
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• v.8 no.2
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• pp.1-20
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• 2021

This study analyzed the effect of perceived service quality for the local content production policy on the service user satisfaction, reuse intention, and the recommendation intention. First, reliability, responsiveness, and adequacy were identified as the service quality evaluation criteria of the local content production policy. Second, all of the quality evaluation criteria had a positive effect on the service user satisfaction. Third, responsiveness had a positive effect on reuse intention, and responsiveness and reliability had a positive effect on recommendation intention. Fourth, the service user satisfaction had a positive effect on the reuse intention and recommendation intention. Therefore, this study has the significance of presenting a theoretical model for the service quality evaluation of the local content production policy, and suggesting perspective for the improvement of the policy.