• Journal of Distribution Science
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• v.14 no.10
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• pp.93-107
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• 2016

Purpose - This study aims to derive directions and implications for improving performance in operating agrifood export organizations by identifying significant performance impact factors. Research design, data, and methodology - A seemingly unrelated regression (SUR) model was estimated using data from a survey conducted among 120 exporters including 16 leading export organizations. In the SUR estimation, the export volume and price are used as dependent variables and securing the quantity of products ordered and exported, quality management, and marketing activities are considered as explanatory variables for the operation performance. Results - The amount of farmer education, the manpower in charge of marketing, and the interaction terms between whether or not they belong to a leading export organization and the item dummy for mushrooms have a significant impact on the export volume where the export volume is specified as a dependent variable. The export volume is greater with a greater amount of farmer education and greater manpower in charge of marketing from the perspective of quality management. When the export price is estimated as a dependent variable, the manpower in charge of marketing is shown to have a significant impact on the export price. Conclusions - The government needs to strengthen its support of the performance of agrifood export organizations. The analysis indicates that the education of and consulting with farmers, and the manpower number in charge of marketing are key factors in the operation performance of export organizations. Therefore, supporting the export organizations in expanding their human resources in charge of marketing can increase the export volumes for agrifoods. Given, however, that the export volume associated with joint payments, human resources specialized in quality management, and the amount of participation in export exhibitions are not significant factors, it is essential to improve the supporting policies for those areas. The manpower in charge of marketing from the perspective of marketing has a significant impact on both the export volume and export price. Thus, we identify this as the most important category that should be supported to enhance performance in export organizations.

• The Journal of Asian Finance, Economics and Business
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• v.7 no.12
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• pp.977-993
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• 2020

Sustainable tourism is the development of tourism activities to meet the current needs of tourists and indigenous peoples while paying attention to the conservation and improvement of resources for the development of tourism activities in the future (World Tourism Organization, 2013). With the aim of identifying factors affecting the development of sustainable tourism in the South Central Coast of Vietnam, the study conducted a typical survey of 160 tourism managers and 240 tourists traveling or have participated in tourism activities of 8 provinces in the South Central Coast of Vietnam, and used the exploratory factor analysis (EFA) analysis and regression analysis for analyzing the data. The research results show that 11 factors impact the development of sustainable tourism in the South Central Coast namely Institutions and policies for tourism development, Infrastructure, Tourism resources, Human resources for tourism, Diversity of tourism services, Relevant support services, Activities of association and cooperation for tourism development, Tourism promotion and encouragement, Tourists' satisfaction, Local community, and Other factors. At the same time, among the above factors, the factors Institutions and policies for tourism development, Infrastructure, Tourism resources, and Local community strongly impact the development of sustainable tourism in the region.

• Plant Resources
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• v.6 no.2
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• pp.114-119
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• 2003

In this study, an on-site survey was conducted around Gasado island at Jodo-myeon, Jindo-gun, Jeonnam during July 2 to 25, 2002. The naturalized plants investigated in the surveyed sites were revealed 15 families and 39 species, including Althaea rosea and Oxalis articulata, which are ornamental plants. Only 10 species appeared in Imjado island among the surveyed sites the surveyed sites and Imjado Island, including Elymus sibiricus, Lolium perenne, Chenopodium album, Oxalis articulata, Oxalis corymbosa, Oenothera odorata, Xanthium strumarium, Bidens frondosa, Ambrosia artemisiaefolia var. elatior, and Taraxacum officinale. 6 species were distributed only in Gasado island, Jindo-gun, which included include Festuca myuros, Chenopodium ambrosioides, Amorpha fruiticosa, Malva neglecta, Calendula arvensis, and Carthamus tinctorius. 18 species were showed in Soheuksan island.; Yeosu area, 29 species; Imja Island in Sinan-gun, 34 species, and Gasado Island in Jindo-gun revealed 39 species. It is believed that the species of naturalized plants have been expanded compared to the other areas because of close location to the inland and large population fastiy. The Urbanization Index(UI) of this area was found to be 19.5. The naturalized plant communites in these surveyed sites were classified into Rumex crispus, Elymus sibiricus, and Lolium perenne community according to the vegetation table. Furthermore, they formed a community around areas that received great artificial influence from human dwellings or roads due to the characteristics of species distribution

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2001.10a
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• pp.199-202
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• 2001

This article deals with stochastic reliability systems that include a repair facility and unreliable machines: the main facility of working and an auxiliary facility of "super-reserve" machines. The number of super-reserve machines are random number with a arbitrarily distribution and working machines break down exponentially. Defective machines line up for repair, whose durations are arbitrarily distributed. Refurbished machines return to the main facility. If the main facility is restored to its original quantity, the repair facility leaves on routine maintenance until all of super-reserve machines are exhausted. Then, the busy period is regenerated. The whole system also falls into the category of closed queues, with more options than those of basic models. The techniques include two-variate Markov and semi-regenerative processes, and a duality principle, to find the probability distribution of the number of intact machines. Explicit formulas obtained demonstrate a relatively effortless use of functionals of the main stochastic characteristics (such as expenses due to repair, maintenance, waiting, and rewards for higher reliability) and optimization of their objective function. Applications include computer networking, human resources, and manufacturing processes.

• Journal of the Korean Data and Information Science Society
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• v.15 no.3
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• pp.523-529
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• 2004

In Korea, mathematics education has been changed according to the 7th national mathematics curriculum renovated by the Ministry of Education and Human Resources Development announcement in 1997. The education of probability and Statistics has been carried out as a part of this curriculum. We analyze and compare 3 kinds of mathematics textbooks for 10-12 grade students. Descriptions of random variable, sample variance and sample standard deviation, distribution of sample mean, and etc. which are on some textbooks, are misleaded in school education. We suggest the unbiased estimator of sample variance in textbooks and distributions of sample means with normal population assumption.

• Korean Journal of Agricultural Science
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• v.39 no.2
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• pp.177-182
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• 2012

It is widely recognised that changes in size and isolation of habitat patches have a negative impact on species richness and the distribution and persistence of populations. Thus, the aim of the research was to analyze the change, distribution and spatial characteristics of woodlands in an urban fringe landscape. The results indicated that there was a common trend of woodland loss across all landscape types while no new woodlands were established during 1976 and 2009. Small patches (less than 5 ha in size) were particularly vulnerable to and more likely to disappear due to human activities such as urbanisation. Changes in woodland cover were clearly observed between 1976 and 2009. Loss of many woodlands was caused by residential and infrastructural developments. As a result, woodlands were becoming smaller and more isolated. This trend probably had adverse effects on biodiversity. This woodland information can be used to identify the potential and specific needs for conservation planning in rapidly developing urban areas.

• Korea Trade Review
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• v.46 no.1
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• pp.39-57
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• 2021

Developing countries are in competition to attract ODA and FDI in an effort to overcome poverty and development. This study tries to identify factors influencing the distribution of ODA and FDI resources and analyzes if ODA and FDI are in complementary relationship. We use a panel data for 53 African countries during early and middle of 2000 period. Factors affecting the ODA distribution include per capita GDP, physical infrastructure, good institutions of receiving countries. FDI was found to be positively affected by market size, trade openness, human capital accumulation, business-friendly regulatory environment. The impact of ODA is believed to be more effective and sustainable if it has a complementary relationship with FDI. Our result, however, did not confirmed the complementarity relation between the two.

• Proceedings of the Korea Water Resources Association Conference
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• 2007.05a
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• pp.667-672
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• 2007

Land-use in Cheongju region is changing rapidly because of the increased interactions of human activities with the environment as population increases. We used multi-temporal Landsat images (1991 and 2000) and DEM data in a post-classification analysis with GIS to map land-use distribution and to analyse factors influencing the land-use changes for Cheongju City. Land-use statistics revealed that substantial land-use changes have taken place and that the built-up areas have expanded by about $17.57km^2(11.47%)$ over the study period (1991-2000). Agricultural lands and forests have decreased substantially while urban and barren lands have been on the increase. Rapid economic developments together with the increasing population were noted to be the major factors influencing rapid land use changes. Urban expansion has replaced urban and barren lands, thereby affecting habitat quality and leading to serious environmental degradation.

• Korean Journal of Plant Resources
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• v.2 no.1
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• pp.1-214
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• 1989

There shoul be high possibility of preventive and immune eficacy aqainst cancer when the anti-cancer plants are properly utilized in human dietary life as it is evident that considerable part of wild plantd or both medicinal use and ood are growing naturally in the mountainous area in korea, some of which have ben proved to be anti-cancer plants. this study, at this initial stage, has been done to acquire the fundamentals of 235 kinds of ante-cancer plants growing naturally in korea. from the results o thisresearch, the anti-cancer plants have been sorted out by amily and its number. and also the status of regional distribution of those plants and the kinds of anti-cancer plants used for both medicine and food were studied and experimented to see the medical efficacy against anti-tumor. this experiments were conduced in accodance with the total packed cell volume method and cyto toxicity method.

• Korean Journal of Plant Resources
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• v.30 no.2
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• pp.176-190
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• 2017

South Korea is the northernmost distributional territory on the Camellietea japonicae (evergreen broad-leaved forests of the warm-temperate zone) in East Asia. A total of 40 stands were collected in terms of an ecologically-naturalized wild tea population (WTP), and their species composition was analyzed by $Z{\ddot{u}}rich$-Montpellier School's method with preliminary regard to forest canopy idendtification. Stand types were characterized by ecological flora's criteria such as Raunkiaer's life-form, neophyte, zonal distribution, and nativeness of species. Expansion of WTP distribution into the interior of the peninsula was recognized, than expected. The highest and northernmost WTPs have been recorded at Mt. Palgong, Daegu (390 m a.s.l.) and Iksan Jeonbuk (latitude $36^{\circ}$ 03' 33''), respectively. Altitudinal and latitudinal WTP distribution of Korea under continental climate shows lower than Japanese situation under oceanic climate. Community structure generally involved a few human interferences. Syngeographically WTP distribution was limited on the warm-temperate zone and the southernmost cool-temperate southern submontane zone. First driving force on distributional expansion of the WTP was anthropogenic, particularly in the northernmost distribution area. We finally confirmed an actual existence of the WTP in South Korea and suggested a long-term monitoring on the WTPs in national view of in-situ genetic resources with higher frost-resistance.