• Land and Housing Review
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• v.6 no.4
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• pp.231-237
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• 2015

Recently, It has been much interest in modular housing construction. so, The purpose of this study was to investigate the characteristics of the indoor air quality in modular mock-up housing. We measured indoor air quality(formaldehyde, benzene, toluene, ethylbenzene, xylene, styrene) of two modular mock-up units that built-in furniture is installed and uninstalled. As a result, the pollutants of built-in furniture installed unit were emitted more than built-in furniture uninstalled unit. But after bake-out and ventilation, emission concentrations of two modular mock-up units were similar and were below Indoor Air Quality recommendation standards. Built-in furniture is likely to affect the emission concentration of toluene

• The Journal of the Korea Contents Association
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• v.16 no.4
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• pp.666-674
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• 2016

This study examines the effect of consumption level on the life satisfaction of baby-boom generation and further examines the mediating effect of subjective expectation(standard of living and government policy). This research uses the panel survey to explore ageing society in 2012 made by Korean Labor Institute, which studied 1,756(born in 1955~1961). SPSS 21.0 Package was applied to analyze the date and multi-regression analysis was conducted. As a result, first, the findings show that as the consumption level increases, the life satisfaction of the baby-boom generation goes up. Second, the findings reveal that subjective expectation partially mediates the influences of consumption level on the life satisfaction of baby-boom generation. This study further discusses the theoretical and political implication of the direction properties on baby-boomer based upon the results of the study.

• Korean Journal of Environmental Agriculture
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• v.16 no.3
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• pp.212-215
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• 1997

Parent isolates and $first-generation(F_1)$ progenies from single-sporangium of Phytophthora infestans were investigated for the acqusition of metalaxyl and streptomycin sulfate(SM) resistance. The parent isolates, KM10, U6, CDB6 showed resistance to metalaxyl, and F817, DNC303, DN107 to SM. Especially, the average mycelial growth of $F_1$ progenies of F817, CDB6, JD1 was more than 51% than parent isolates on 25ppm metalaxyl added V-8 juice agar, whereas those of KM10, U6, JD1 were extended more than 51% similar on 200ppm SM treatment. They acquired resistance on the basis of the standard in this experiment. There were positive correlations between parent isolates and $F_1$colonies in resistance. The $F_1$ colonies obtained from parent isolates showing above interinediate resistance on metalaxyl amended agar acquired much resistance.

• The Journal of the Korea Contents Association
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• v.19 no.1
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• pp.205-222
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• 2019

In this study, we explored the relationship between experienced discrimination and volunteering activities among the $2^{nd}$ baby boom generation. Specifically, applying structural equation modeling, we examined how the effect of experienced discrimination on volunteering among the $2^{nd}$ baby boom generation is mediated by the negative perception of equal opportunity and achievement by personal merit. Data were obtained from the 2016 National Survey on Unequal Opportunity from the Circle Foundation. The research sample was comprised of 474 baby boomers ages 42 to 48 at the time of survey. Results indicated that perceived discrimination affects the level of volunteering among the $2^{nd}$ baby boom generation, through the negative perception of equal opportunity and achievement by personal merit. Based on the findings, we presented policy implications that could promote volunteering activities among the $2^{nd}$ baby boom generation.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.29 no.4D
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• pp.451-457
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• 2009

This study verifies parking requirements of an apartment suggested in parking generation law in Korea through analysing the surveyed parking generation rate. It is revealed that the parking requirements according to the gross floor area in parking generation law is similar to the surveyed parking generation rate as an average but the differences of each requirements by region and apartment's size are not significant. Parking generation rate results in strong correlation with the number of household rather than the gross floor area, and the new requirements suggested in this study, based on the number of household, shows significant difference by region and apartment's size, which is consistent with common sense. This study suggests parking requirements of an apartment, based on the number of household, by region and apartment's size for 6 groups. Surveyed parking generation rate of each group is fitted to statistical distribution and the mean value of fitted statistical distribution is suggested as the parking requirements of each group. Parking requirements based on the number of household is easily recognized of its relative and absolute value, and moreover is consistent with the surveyed parking generation rate.

• 한국노년학
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• v.32 no.2
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• pp.541-557
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• 2012

This study aims to understand public perceptions of aging Korean society and related factors in the context of population aging and generational difference. Data are from 1,498 individuals older than 20 who were recruited through the quota sampling technique. Results indicated that the respondents reported less then three as the number of positive aspects of aging Korean society. Among the factors related to population aging, such as knowledge about aging, perceptions about family care, anxiety about later life, and perspectives about generational conflict, anxiety about later life was shown to be negatively associated with perception of aging Korean society across age groups. Respondents 65 and older showed more positive perception about aging Korean society and this association was conditioned by perspectives about generational conflict. Perspectives about generational conflict revealed positive associations with perception of aging Korean society among respondents aged 20-44 and 45-64, while no association was found among those 65 and older. Discussions focused on ways to alter perceptions of aging Korean society and needs for future research on this topic.

• The Journal of the Convergence on Culture Technology
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• v.10 no.4
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• pp.105-109
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• 2024

This study analyzes the increasingly severe issue of recruiting military officer personnel due to low birth rates and social changes, and seeks to explore recruitment strategies that consider the characteristics of the MZ generation. The military strives to maintain security amidst ongoing military threats from North Korea, but the sharp decline in birth rates significantly impacts conscription resources and personnel recruitment. Additionally, the shift in values among the MZ generation and the cultural gap between them and the military organization make it challenging to attract outstanding talents. The MZ generation values work-life balance, horizontal relationships, and self-fulfillment, finding the authoritative and hierarchical military culture unattractive. Therefore, this study aims to diagnose the problems in military personnel recruitment and propose tailored recruitment strategies reflecting the characteristics of the MZ generation, ultimately exploring sustainable development directions for the future military.

• Korean Journal of Social Welfare
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• v.64 no.4
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• pp.233-259
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• 2012

Recently, the youth employment crisis which is characterized by high unemployment and low employment rate has been considerably serious, while jobless growth has been observed. However, job shortage and unstable labor status of the old are also main issues. To solve this problem, the job creation and deferred retirement for the old has been proceeded. Consequently, it has caused to the intergenerational war on job due to equity of job creation for the youth. However, it is not desirable that the problem would be diagnosed and the policy would be set up although little attention has so far been paid to test empirically this kind of substitution relation. Thus, this research has been analyzed whether the employment relation between the youth and the old is substitution or not. The analysis method is panel data analysis in 15 OECD countries including Korea(1990~2000). Major findings are as follows. First, only half of the youth and the old works. It provides the evidence that the employment crisis is not a problem of special generation but all of them. Second, employment relation between generations followed by panel analysis is not substitution relation. This findings can be interpreted as evidence that it is unlikely to solve the youth employment matter even though the government encourages the early retirement.

• Journal of Sericultural and Entomological Science
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• v.31 no.2
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• pp.91-101
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• 1989

This experiment was carried out to analyze genetic parameters for the selection of silkworm by diallel-crossing with three Japanese and four Chiness silkworm races. Heritability, genetic correlation and path coefficient were calculated as the statistical parameters to evaluate direct or indirect effects of various gentic characters on bave weight. The heritabilities of fifth instar period, cocoon weight, cocoon layer weight, cocoon layer ration, fibroin contents, boiling off ratio and bave weight were over 76.65% in both F1 and F2 generations. There were positive coefficients in both phenotypic and genotypic correlations between male and female of both F1 and F2 generations. The latter showed greater values in general. The correlation between bave weight and the characters of cocoon weight, cocoon layer weight, cocoon layer ratio, fibroin contents were over 0.727 in both sexes of F1 and F2. Therefore, these results suggest that above characters would be useful for genetic selection of silkworms. As result of path coefficient analysis, there was a direct effect with path coefficient value of 0.991 between bave weight and F1 female cocoon layer weight, and with the value of 0.803 between bave weight and F1 male cocoon weight. In F2 the effect showed 0.938 between bave weight and male cocoon weight and cocoon layer weight had greater influence on direct or indirect effects (in path coefficient) than the others.

• Korean journal of applied entomology
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• v.22 no.4 s.57
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• pp.244-250
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• 1983

This study was carried out to analyst the damage due to the brown planthopper, Nilapalvata lugens Stal, at different stages(maximum tillering, booting, heading, and milking) of rice. The results are as follows: The population density of the migrating and the first generations of the brown planthoppers seemed not to be large enough to cause significant effects on the plant height and the number of tillers, while the second and the third generations caused significant reduction in 1000 grain weight(Yl) and the filled grain percentage$(Y_2)$. They were very closely related to the population density(X) of tile second generation of the BPH; $$Y1(g)=25.602-0.0213X(r=-0.5205^{**})$$ $$Y2(\%)=76.97-0.1370X(r=-0.4820^{**})$$ The relationship between rice yield (Yg) and the accumulated total density (X) of BPH per hill by the time of harvest; $$Y(g)=24.694-0.0576X(r=-0.6959^{**})$$ Since the source of the outbreak BPH is the first generation, it nay conclude that the detailed information on the population status of the first generation; density, age components, ratio of the brachypterous form, are very important in relation to management of the pest.