• Journal of the Korean Society of Urban Environment
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• v.18 no.4
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• pp.419-428
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• 2018

This study is aimed at estimating and mitigating the impact of urban development on watershed hydrology for new town experienced with dramatical change of land use from rural to urban. The climate change scenario, representative concentration pathway (RCP), revealed direct response of runoff depth to precipitation, which increased until year 2100. The types of areas for urban use in addition to climate change affected the efficiencies of bioretention, applied as a low impact development (LID). Combining different areas for urban use suggested that a possible approach to mitigate the urban development impact on watershed hydrology by supplementing captured rainfall potential from area to area and attenuating peak discharge and retarding its time of concentration.

• Journal of Korean Society of Rural Planning
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• v.3 no.2
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• pp.71-80
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• 1997

The city's countryside is adjusting to change by urbanization. The recent changes in rural landuse and damages of local landscape characteristics are very serious. But, few studies address the relationship between land-use and quality of landscape for these area. The aim of this study is to clarify causes and problems of the change through investigating changes of landscape as a function of land-use. The results are as follows 1) The change of landscape can be seen as a functional of land-use. Landscapes are characterized by changes of regional environments. These are the urban-rural fringe area which need special consideration for urban development and also for rural landscape quality. 2) 11 types of landscape patterns are found for landscape management. these are Regional commercial area, Apartment development, Recreation & seisure, Golfs, Housing complex, Industrial complex, Vinyl house, Rural village, Evaded facilities, Rivers, Cultural heritages. These landscape types are explained as 'stimuli-responses model'in Bryant's Forces of urbanization. 3) The policy implications of these study are as follows : First is the necessity of landscape management in Grown Management Zone and Natural Reserved Zone in the Metropolitan level, Second is the necessity of development control in semi- agricultural area. The last is the necessary of long range management plan in the urban-rural fringe area.

• Journal of Contemporary Eastern Asia
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• v.13 no.1
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• pp.57-68
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• 2014

This paper positions the triple-Helix as a meso-level notion, an epicycle in a grander circle of technological change, institutional change, and psychological change. Because of the differing speeds of these several kinds of change, speed is proposed as a high-level system metric. This implies that what we commonly call bridging agencies or facilitators - lawyers, venture capitalists, incubators, etc. - are better called buffering agencies, as they help to engage entities changing at different speeds. They use human judgment as well as information technologies to choose feasible timing for these engagements. The paper highlights implications for thinking about innovation diffusion: The grand cycle of socio-technical change means we should, rather, think in terms of innovation reinforcement, or a circle of innovation.

• Journal of the Korean Society of Manufacturing Technology Engineers
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• v.19 no.5
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• pp.710-715
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• 2010

This study developed an automatic tool change system of the SMA-based tool clamping device for applications of micro-machine tools. This paper first describes clamping and unclamping procedures of the automatic tool change system and its basic configuration. Second, it presents fabrication techniques of components, such as a heating/cooling system and a tool loader. Finally, it describes automatic tool change test conducted with a prototype in which the fabrication techniques of components were employed. As the results of the test, times needed for clamping and unclamping operations were estimated to 18(s) and 8(s) respectively. The experimental results confirm that the proposed automatic tool change system can be sucessfully applied to micro-machine tools.

• Journal of the Korea Organic Resources Recycling Association
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• v.18 no.1
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• pp.110-118
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• 2010

Supercritical treatment of liquefaction technology for rice hull was investigated the biomass conversion rate and evaluated its crude oil in respect to feasibility of burner in order to heat the green house. The reaction was carried out in a 5,000 mL liquefaction system with dispenser and external electrical furnace. Raw materials (160 g) of rice hull and 3,000 mL of different solvents were fed into the reactor. It was observed that the maximum crude oil yield was about 84.4 % with 1-butanol. The calorific value of crude oil from ethanol solvent were 7,752 kcal/kg. Furthermore, in case study of co-solvent with ethanol and bulk-glycerol, it observed that more than 80 % of rice hull was decomposed and liquefied in its solvent at $315{\sim}326^{\circ}C$ for 30 min. For the development of applicable bio-fuel from rice hull, it was considered that its feasibility is necessary to be carried out for co-solvent soluble portions. Regarding to utilize the crude oil into burner as fuel, it was observed that its calorific value was lower at approximately 24 % than the diesel. Also, flame length from crude oil at lower temperature was decreasing due to incomplete incineration. The temperature of warm wind on the burner was maintained between 63 and $65^{\circ}C$, and the temperature of emission line was appeared at $350{\sim}380^{\circ}C$.

• Korean Journal of Soil Science and Fertilizer
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• v.9 no.1
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• pp.57-63
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• 1976

The lecturer pointed the agriculture in change brought about population bomb and economic development, and he appealed the scientists of soil and fertilizer to make proposals for establishing their constructive attitudes toward the situations of agriculture. The points emphasised by the lecturer for the improvement of future food situation were: fox example the elucidation of the ancient agricultural technology of Korea which is a important attempt for development of agricultural technology of Korea and Japan, and soil improvement with special attention to the efficiencies of phosphate, silicate, cations and trace elements. He showed some Japanese examples of natural pollution as both of a sufferer and an assailant of agriculture which are resulted from the high economic development, and some methods of solution, for example active application of legumes capable for fixing atmospheric nitrogen to wasted soils. He also pointed the need of lower consumption of energy and resources, and new understanding of wild plant species for the future agriculture. Some methods of other fields of sciences were emphasised for developing the soil and fertilizer researches.

• Korean Management Science Review
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• v.26 no.2
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• pp.113-134
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• 2009

Rapid knowledge change, heightened competition. and shortened product life cycles are just a few of the constants faced by many buying firms in today's markets. Many buying firms have responded to these conditions by outsourcing non-core activities. The Quality and cost of a product or service offered in the market is a function, not only of the capabilities of the firm, but also of the network of suppliers who provide inputs to the firm. When a firm finds its suppliers lacking in performance it can help suppliers to develop their capabilities. There are three main goals for this study. The first goal is to identify the important factors that precede and influence firms' investment in knowledge transfer activities. The second goal is to investigate the relationship between knowledge transfer activities and the consequences of knowledge transfer activities. The last goal is to explore the effects of knowledge change speed. To analyze the validity of the research model and the hypotheses. the data are collected from 238 manufacturing firms through the administration of structured Questionnaires. The results of structural equation model analyses indicate that the model is generally valid and 11 of 14 hypotheses are supported by the data. Reasons for and implications of these observed relationships are discussed.

• The Southeast Asian review
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• v.22 no.2
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• pp.201-238
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• 2012

This study analyses the nexus between political change and development of parliamentary politics in Malaysia. The continued and stable parliamentary politics did not necessarily associated with political development in Malaysia for the last five decades. Except the 1969 general election, the ruling coalition, Barisan Nasional(BN), has never been failed to obtain the two-third majority of parliamentary seats even though there has been regular general elections in every 4-5 years without any interruption. It is, however, worth noting that there has been dramatic political changes since the late 1990s. In particular, the 2008 general election showed the remarkable results, collapsing the two-third majority of BN's parliamentary seats. The opposition parties even took over the 5 state governments out of 12 in total. The more distinguished feature was the emergence of opposition coalition, called Pakatan Rakyak(PR), right after the 2008 general election. It was the first united coalition in Malaysia's modern political history among the severely divided opposition parties. Since its emergence, the PR has initiated various changes leading towards a more active parliamentary politics. In this regards, this study argues that parliamentary politics is no more regarded as a dependent variable in Malaysia's political process.

• Journal of Embryo Transfer
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• v.15 no.2
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• pp.129-136
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• 2000

This study was carried out to investigate the effect of biological factors on the in vitro production(IVP) of bovine oocytes for development of simple culture methods and medium. Oocytes from the slaughterhouse ovaries were matured and fertilized using general protocol and this study was examined if there were necessary to co-culture, media change, media type and embryo density. This results were as follows: 1. The development rate according to co-culture with cumulus cells and non co-culture as drop culture was not significantly different in cleavage (68.9 vs 71.7%), 8-cell stage (41.2 vs 44.1%) and blastocyst stage (12.2 vs 13.8%), respectively (p<0.05) 2. The blastocyst development rates in YS and CRIaa were higher than that in TCM199 (12.4, 10.4$ vs 3.7%), but the cleavage (69.0, 77.8 and 61.0%) and 8-cell stage (31.7, 37.0 and 35.7%) development accoring to YS, TCM199 and CRIaa ws not significantly different, respectively (p<0.05). 3. There was no significantly different in cleavage (62.6, 59.5 and 61.2%), 8-cell(34.7, 37.9 and 34.0%) and blastocyst (9.5, 11.6 and 12.8%) development among medium change time as control, Group I and Group II, respectively (p<0.05). 4. Blastocyst formation of 8-cell stage according to embryo density was not significantly different in 1, 10 and 25 embryos (27.3, 22.5 and 34.0%), respectively (p<0.05). These results indicated that simple culture system could reduce bovine IVP embryos as drop culture as non co-culture system, high density embryo (25 embryos/50 $\mu$1 drop). YS defined medium and no medium change for whole culture period, although other biological factors need to examine in order to produce efficient IVP bovine embryos.

• Journal of the Korea Safety Management & Science
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• v.12 no.3
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• pp.237-247
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• 2010

Global financial crisis at 2008 bring about the great change to the company itself and its environment. In these days, the company needs change to the ambidextrous organization, which have more efficiency processes also have more attractive products and services. Ambidextrous organization purse exploiting and exploration innovation program. For the existing process's incremental and rapid improvement, the exploiting innovation programs are used such as 6 Sigma program and so on. For the new business model's searching and developments, the exploration innovation programs are used such as blue ocean program and brainstorming and so on. In this paper is presented the new procedures, for the new business model development, combining exploration and exploiting innovation programs. To obtain the creative business ideas, various exploration methodologies are adopted based on 6 Sigma's methodology, The new procedures are applied to the venture company and examined its validity.