• Journal of Preventive Medicine and Public Health
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• v.16 no.1
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• pp.51-58
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• 1983

This study was carried out to obtain the basic data for the preverition of chronic poisonig by organic phosphate pesticides. 6 sprayers who participated in the summer pest control programs of Jeonju city were chosen as the subjects in this study. Pesticides which were spread in the period of study are DDVP (1.09%), dursban (1.8%) and dibrom (1.9%). And from May 16, 1983 to Aug. 22, 1983, plasma cholinesterase activity, hematological and biochemical parameters were measured with several physical examinations for each sprayers and controls. Major findings are as following; 1. Before pesticides were sprayed, plasma cholinesterase were $7.32{\pm}1.76{\mu}M/20{\mu}l/hr$. in sprayers and $7.13{\pm}1.39{\mu}M/20{\mu}l/hr$. in the control group (p>0.05). 2. At 60th day of spraying, plasma cholinesterase activity of sprayers was $6.78{\pm}2.01{\mu}M/20{\mu}l/hr$. which is significantly decreased from the pre-exposed value (p<0.01), but plasma cholinesterease activity in the control group was not changed. 3. The specific findings which suggested to organophosphorous poisoning were not found through the period of study. 4. Hematological and bichemical parameters were not sigricantly changed in the both groups.

• Steel and Composite Structures
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• v.52 no.3
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• pp.313-325
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• 2024

This work presents experimental and numerical investigations on the flexural performances of composite deep-deck plate slabs. Seven deep-deck plate slab specimens with topping concrete were fabricated; the height of the topping slab as well as presence and type of shear connector were set as the main variables to perform bending experiments. The flexural behaviors of the specimens and composite behaviors of the deck plate and concrete were analyzed in detail. The contributions of the deck plate to the flexural stiffness and strength of the slab were identified through finite element (FE) analysis. FE analysis was carried out using the validated FE model by considering the varying bond strengths of the deck plates and concrete, thickness of the deck plate, and types and spacings of the shear connectors. Based on the results, the degree of composite of the deep-deck plate was examined, and a flexural strength equation for the composite deck plate slabs was proposed.

• Computers and Concrete
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• v.34 no.4
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• pp.503-517
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• 2024

This study presents an analysis model to estimate the shear strength of a reinforced concrete (RC) member with corroded tensile reinforcements. The thick-walled cylinder theory was modified to fit the dual potential capacity model to reflect interdependent failure mechanisms, including the degradation effect of bonds in corroded tensile reinforcement. In the proposed model, it is considered that the shear failure of corroded RC members with no proper anchorage detail is primarily dominated by the flexural-bond mechanism, where insufficient bond strength is provided owing to corrosion damage. However, when tensile reinforcements are properly anchored in the end regions using end hooks or mechanical devices, it is assumed that the tied-arch action can be developed as a secondary shear transfer mechanism, even under severe corrosion damage. The proposed model was verified by comparison with shear test results of corroded RC members collected from the literature, and it appeared that the proposed model can estimate their shear strengths with a good level of accuracy, regardless of various anchorage details and corrosion rates in tensile reinforcements.

• Journal of the Korean Institute of Rural Architecture
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• v.14 no.4
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• pp.107-116
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• 2012

This study aims to investigate what degree do the hospital buildings carry out their role in regional scenery. To carry out this study the existing theoretical and field survey was conducted to the 44 private hospitals in small and medium-sized cities - Jeonju city, Kunsan city and Iksan city in Jeonlabukdo district. The contents of the survey are the general aspect of the polled, the image of the buildings, that of medical treatment parts, the relations to the regional scenery. And they are questionnaire surveyed to the 44 private hospital buildings. In questionnaire survey, the 35 professional architects who major architecture and related design and 118 citizens who doesn't major architecture are participated. The results of this study are as follows: 1. Those surveyed who answered those private hospital buildings which have their functional images are barely 20%. Some of 27% answered they have images of the commercial building. Especially in professional architects, 5% of them answered thet have their hospital images. It showed that they don't have their identity in the architectural expression in the processof architectural design. 2. The architectural facade elements that express their images in surveyed buildings are answered that architectural building form is 62%, architectural color is 27% and architectural material is 10% in turn. And the architectural elements that express their images in surveyed buildings are answered that building wall is 56%, architectural decoration is 32%. In this article, the reason why the ratio of the architectural decoration is high is that they don' have their identity in building itself. And they expressed their identity by their decoration, sign system not their buildings. 3. As the preference level for their images, some of the 49% of the total surveyed answered common. The general surveyed answered a little preference. But the architect professional group answered preference is 14%, not preference is 29%. The reason of this article is that the general surveyed are familiar with their buildings. So the questionnaire of the harmony with the surrounding scenery, 25% of the general surveyed answered that they are in harmony with surrounding but 22% of them answered that they are not in them. But In professional group, they answered 6% oh them are positive 37% of them are negative. This results suggests that the identity of the private hospital buildings are established in the process of archiectural design.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.19 no.4
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• pp.45-54
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• 2020

This study investigated basic data on walking characteristics, including walking speed and cognitive-response for the elderly, and based on these, the time of walking signal was calculated. The on-site survey examined the actual pedestrian crossing speed using a stopwatch, and the age was divided into groups of ordinary people and the elderly. Analysis of the data showed that the average walking speed for the general public was 1.29 m/s, while the average walking speed for the elderly was 1.13 m/s, higher than that of the general public. In addition, the lower speed of the 15th percentile was analyzed to 1.01 m/s for the general population and 0.85 m/s for the elderly, showing a lower walking speed than the standard for the general area and 0.8 m/s for the protected area. However, for senior citizens who use walking sticks or wheelchairs, the speed of the lower 15th-percentile is 0.73 m/s, which is lower than the current standard of protected areas, according to the analysis.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.36 no.1
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• pp.65-74
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• 2016

This study mainly focuses on urban regeneration project as a countermeasure to resolve climate change issues by analyzing the carbon-reduction effect of Jeonju test-bed cases. First, an urban regeneration project is designed for city, Jeonju by analyzing its environmental problems and potential improvement. Then, carbon emission and reduction amounts are evaluated for different businesses and scenarios. Carbon emission sources are classified according to a standard suggested by IPCC, and the emissions are calculated by various standard methods. The result shows that carbon emission amount in Jeonju test-bed is 102,149 tCO2eq. The fact that 70% of the emission from energy sector originates from buildings implies that urban regeneration projects can concentrate on building portions to effectively reduce carbon emission. It is also projected carbon emission will decrease by 3,826tCo2eq in 2020 compared to 2011, reduction mainly based on overall population and industry shrinkage. When urban regeneration projects are applied to 5 urban sectors (urban environment, land use, green transportation, low carbon energy, and green buildings) total of 10,628tCO2eq is reduced and 4,857tCO2 (=15.47%) when only applied to the green building sector. Moreover, different carbon reduction scenarios are set up to meet each goal of different sectors. The result shows that scenario A, B, and C each has 5%, 11%, and 15% of carbon reduction, respectively. It is recommended to apply scenario B to achieve 11% reduction goal in a long term. Therefore, this research can be a valuable guideline for planning future urban regeneration projects and relative policies by analyzing the present urban issues and suggesting improvement directions.

• Journal of Digital Convergence
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• v.16 no.5
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• pp.309-315
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• 2018

The study analyzed convergent influence on occupational stress(KOSS-SF: Korean Occupational Stress Scale-Short Form) and its association with Organizational Justice(OJ), Self Esteem(RSE :Rosenberg Self-Esreem) and Self Efficacy(GSE: Generalized Self-Efficacy) among some regional General Hospital Administrative Staff(GHAS). The survey was administered to 221 staff from 11 general hospitals located in J city from Nov. 1st, 2016 to Jan. 31st, 2017, by structured self-administered questionaries. Occupational stress was negatively correlated with two sub-domains of OJ, RES and GSE. With the analysis of covariance structure, we identified the causal relationship of OJ, RES, GSE and occupational stress among GHAS. The study found the higher OJ, RES and GSE tend to decrease occupational stress. The results indicate that the efforts, to increase OJ, RSE and GSE, are required to decrease the occupational stress of GHAS. The results are expected to be useful for organization & HR management to decrease the occupational stress of GHAS. In the following study, the analysis about convergent additional factors of influence on occupational stress of GHAS will be needed.

• Journal of Digital Convergence
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• v.16 no.9
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• pp.301-307
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• 2018

We study convergent influence on depression and its association with self-esteem, fatigue and psychosocial stress among General Hospital Administrative Staff(GHAS). The subjects were 201 randomly extracted GHAS from 9 general hospitals in J City, Data collection was carried out via a structured self-administered questionaries from Jul. 3rd, 2017 to Jul. 29th, 2017. Depression was positively correlated with three sub-domains of fatigue and psychosocial stress, and it was negatively correlated with self-esteem. With the analysis of covariance structure, depression was more influential on self-esteem than fatigue and psychosocial stress. The study found the higher fatigue and psychosocial stress, and the lower self-esteem tend to increase depression. The results indicate that the efforts, to increase self-esteem, and to decrease fatigue and psychosocial stress, are required to decrease the depression of GHAS. The results are expected to be useful for industrial health education and job management to decrease the depression of GHAS. In the following study, the analysis about convergent additional factors of influence on the depression of GHAS will be needed.

• Journal of Digital Convergence
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• v.16 no.3
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• pp.395-405
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• 2018

The purpose of this study is to investigate the effects of parental rearing attitudes on smartphone addiction and mediation effect of children's aggression and impulse between them. The randomly chosen 390 subjects of the 4th and 5th elementary school students (boy: 199, girl: 191) of J City participated in this research. The main scales were EMBU-Shot, Smartphone Addiction Scale and NEO-PAS. Spss 22.0 was used for its statistical analysis, that is correlation analysis and regression analysis. The main results are as follows. First, parental rearing attitude, smartphone addiction, and aggression and impulse were statistically significantly correlated. Second, it is testified that rejective parental rearing attitudes statistically significantly increasingly influenced smartphone addiction with partial mediation of aggression and impulse. Also overprotective parental rearing attitudes statistically significantly increasingly influenced smartphone addiction with full mediation of them. It suggested the importance of intervention for aggression and impulse of the children with smartphone addiction as well as parental rearing attitude changes in intervening and counseling them. This study tried to supply evidence-based and basic data for the developing preventive education and counseling programs for them. The limit and future tasks were discussed.

• The Korean Journal of Elementary Counseling
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• v.9 no.1
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• pp.75-94
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• 2010

The objective of this study is to divide the classroom behaviors into the obstacle behaviors in the classroom and the participation behaviors in the classroom for improvement of classroom behaviors upon the subjects of 4th graders of elementary school, and to find out what effects the self-monitoring program influences onto classroom obstacle behaviors and classroom participation behaviors of the subjective children. Study problems established in order to achieve this objective of study are to find out: first, what effects the self-monitoring program influences classroom obstacle behaviors of children, and second, what effects the self-monitoring program influences classroom participation behaviors of children. The subjects of this study are 12 children of a normal classroom of 4th grade of A elementary school located in J city of Jeollabuk-do, out of which 8 children, who showed high proportion in the classroom obstacle behaviors, and 8 children, who showed low proportion in the classroom participation behaviors were selected, and 4 children were those who belonged to both groups resultantly in accordance with the behavior scales measured during the baseline period. To summarize the results obtained through this study, first, the self-monitoring program turned out to influence positive effects upon reduction in the classroom obstacle behaviors of children and retention of their changed behaviors; second, the self-monitoring program turned out to influence positive effects upon increase in the classroom participation behaviors of children and retention of their changed behaviors.