• Korean Journal of Agricultural Science
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• v.48 no.3
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• pp.527-534
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• 2021

This study investigated the possibility of performing selection using 30-month carcass traits by estimating the genetic parameters of 24- and 30-month carcass traits. Data used in this study were the carcass traits of 13,151 heads slaughter at the age of 24 and 30 months. As a result of the study, the heritability of backfat thickness, carcass weight, eye muscle area and marbling score at 24 months of age were estimated to be 0.588, 0.354, 0.467 and 0.587, respectively. The heritability of backfat thickness, carcass weight, eye muscle area and marbling score at 30 months of age were estimated to be 0.498, 0.577, 0.505 and 0.530, respectively. The ranking correlation was 0.516 between the carcass selection indices of 24 and 30 months of age. By providing a 30-month selection index, it is possible to use semen suitable for farm profits, and more semen information can be provided to farms than previously. Furthermore, studies on a selection index based on 30-month carcass traits are needed to provide highly accurate information.

• Journal of the Korean Institute of Rural Architecture
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• v.23 no.1
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• pp.9-18
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• 2021

In this study, surveys and data collection on new profit-sharing measures were carried out in order to improve the residential environment and residents' participation in 65 MW large-scale solar power complex located at Munhye 5-ri, Galmal-eup, Cheorwon-gun, Gangwon-do province. From May to September 2018, the presentation and meetings for residents were held and a survey for 67 households were carried out in order to collect profit-sharing data which is sharing profits from solar power project improving residential environment. The results of the survey shows that it needs to improve some obstacles of residential environment in rural areas, such as improvement of living infrastructure at village level, improvement of monotonous leisure activities from the residents' point of view, improvement of economic income sources depending on farm income and Basic Old-age Pensions, inconvenience factors in the unsuitable residential environment due to aging. Based on these findings, this paper suggests that Profit-Sharing solar power complex project has possibilities to improve living environment in rural areas by sharing profits from power generation and residents participating in the project with consensus for need of renewable energy.

• Geomechanics and Engineering
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• v.32 no.2
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• pp.209-232
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• 2023

A comprehensive study was conducted to design economical foundations for a number of buildings on soft cohesive soil in the southern coastal regions of Iran. Both static and seismic loads were considered in the design process. Cyclic experiments indicated that the cohesive soil of the area has potential for softening. Consequently, the major challenge in the design stages was relatively high dimensions of settlement, under both static and seismic loadings. Routine soil-improvement methods were too costly for the vast area of the project. After detailed numerical modeling of different scenarios, we concluded that, in following a performance-based design approach and applying a special time schedule of construction, most of the settlement would dissipate during the construction of the buildings. Making the foundation as rigid as possible was another way to prevent any probable differential settlement. Stiff subgrade of stone and lime mortar under the grid foundation and a reinforced concrete slab on the foundation were considered as appropriate to this effect. In favor of an economical design, in case the design earthquake strikes the site, the estimations indicate no collapse of the buildings even if considerable uniform settlements may occur. This is a considerable alternative design to costly soil-improvement methods.

• Journal of the Korean Institute of Traditional Landscape Architecture
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• v.36 no.4
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• pp.70-79
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• 2018

This study would suggest a measure for the improvement of the commentary program on the building concentration area of Changdeokgung Palace. In the process of the survey, the researcher attended the commentary site and tape-recorded commentaries two times. The researcher conducted an analysis of the times and contents of the tape-recorded commentaries and evaluated their appropriateness, including historicity and connectivity to the site. In addition, the researcher figured out the commentaries and the visitors' movements through drawings and field surveys and analyzed the locations and conditions of the main facilities. Through a field survey and analysis, it was found out that the commentaries included the facts and anecdotes about the buildings, the related figures and history. However, it was found out that there were very insufficient commentaries on the buildings arranged according to the commentary movements, the outside space, in particular, the traditional landscape facilities. In addition, it was found out that there are areas that would need commentaries and opening for viewing. A proposal for the improvement of the commentary program was drawn up based on the analysis. New commentary points were added, and the commentaries of the outside space of the area and the traditional landscape facilities could improve through modifying the existing commentaries. With the proposal for improvement, the time required was calculated through reading aloud at a speed the same as the existing commentary speed. Through this, it was found out that the proposal for improvement could be implemented within one hour, the same as the present commentary program. This study has a significance that it provided a measure for practical improvement that could provide the visitors with quality commentary information and more interesting experience.

• Journal of the Korean Institute of Educational Facilities
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• v.13 no.2
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• pp.15-24
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• 2006

The 7th National Curriculum requires the part of a school library for supporting porformance evaluation, optional actives, and extracurricular activities. The school library which is very important part of school education needs support of necessary resources and adequate facilities for performing its functions effectively and efficiently. This reserch is based on the school library for present education to need. And, the objective of this reserch is to grasp the present condition of school library and to show improvement device for planning efficiently the time when school library is designed in future.

• Proceedings of the Korean Society For Composite Materials Conference
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• 2005.04a
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• pp.71-75
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• 2005

For the damage tolerance improvement of conventional laminated composites, stitching process have been utilized for providing through-thickness reinforcements. 2D preforms were stacked with S-2 glass plain weave and S-2 glass MWK (Multi-axial Warp Knit) L type. 3D preforms were fabricated using the stitching process. All composite samples were fabricated by RTM (Resin Transfer Molding) process. To examine the damage resistance performance the low speed drop weight impact test has been carried out. For the assessment of damage after the impact loading, specimens were examined by scanning image. CAI (Compressive After Impact) tests were also conducted to evaluate residual compressive strength. Compared with 2D composites, the damage area of 3D composites was reduced by 20-30% and the CAI strength showed 5-10% improvement.

• Journal of the Korean Institute of Rural Architecture
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• v.4 no.1
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• pp.1-8
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• 2002

To strengthen the nation's logistics infrastructure, the government will also look into constructing inland freight bases in the country's five major regions-the Seoul metropolitan area, Busan region, Honam region(North and South Jeolla provinces), central region(North and South Chungcheong and Gangwon provinces) and the Youngnam region(North and South Gyeongsang provinces). In the years ahead, the construction industry will be challenged by increasingly difficult and complex problems in both engineering and management . Domestic construction industry usually accounts for the range of 10percent of a gross domestic products(GDP) in Korea. The retardations of construction periods in numerous construction works which are caused by the short supply of building materials and laborers have been coming out as a social problem in the country.

• Journal of the Korean housing association
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• v.14 no.3
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• pp.137-146
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• 2003

The Primary Purpose of this study is to evaluate transportation conditions (including parking space shortage problem) of the old single house district and to derive some policy implications for living environment improvement policy. For these purposes, data were collected from field survey and questionaire survey. The main findings are follows. Residents are discontent about building structure, old house, high risk of traffic accident in the housing district and parking space shortage. The living environment of the old single house district is further degraded by mix of commercial and business functions in the residential area. Based on these findings, we suggest that the introduction of resident-first parking zones, restriction of use of facilities with more detail division of use than current zoning system for improvement of living environment.

• Proceedings of the KIEE Conference
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• 2006.10c
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• pp.431-433
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• 2006

The goal of this paper is improvement of vision inspection accuracy by using histogram specification operation. The histogram is composed of horizontal axis of image intensity value and vertical axis of pixel number in image. In appearance vision inspection, the histogram of reference image and input image are different because of minutely lighting distinction. The minutely lighting distinction is main reason of vision inspection error in many cases. Therefore we made an effort for elevation of vision inspection accuracy by making the identical histogram of reference image and input image. As a result of this area separation histogram specification algorithm, we could increase the exactness of vision inspection and prevent system error from physical and spirit condition of human. Also this system has been developed only using PC, CCD Camera and Visual C++ for universal workplace.

• Journal of the Korean Institute of Rural Architecture
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• v.17 no.1
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• pp.35-44
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• 2015

This study is regarding Rural village renovation project that improve the poor residential environment of backward rural district in Korea and the quality of life of the rural area residents. Especially, by comparing the Kyungbuk, Yeungju, Juchi village's case which was progressed by MAFRA (Ministry of Agriculture, Food and Rural Affairs) in 2014 for the demonstration project with the successful case MELAP(Model project on the Effective Utilization of Rural Land through the activation of internal potential element) which is one of the Rural area Development Program in German Federal Ministry of Baden-$W{\ddot{u}}rttemberg$, this essay attempts to suggest the improvement Plan of Rural village renovation project which will be developed forward.