• Korean Journal of Agricultural Science
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• v.28 no.2
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• pp.162-172
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• 2001

There have been various flower exhibitions in many countries such as Netherlands, Japan and China so as to encourage the growth of flower industry since they recognize the value of flower as cultural goods. Chungnam Province government, also endeavoring to make the. regional flower industry into high valued agriculture and exporting industry, plans to open the international flower exhibition in Anmyon-Do from April 26th, 2002. This flower show, first held by local government and featuring mega-event tourism, is expected to contribute to initiating flower industry and related business in Chungnam region. However, the flower exhibition may not be said to succeed if it does not play enough to trigger the role in expanding its effect on post growth of regional flower industry. This paper aimed at suggesting strategies of maintaining festival boom of post Anmyon-Do flower fair and contributing to take off of flower agriculture and its related industry as follows; 1) inviting various flower business activities into exhibition places 2) establishing flower village town attracted by tourists 3) devising the flower R&D center 4) organizing helping center for infant flower business group.

• International Journal of High-Rise Buildings
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• v.4 no.3
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• pp.219-226
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• 2015

By the end of 2014, the number of completed and under-construction supertall buildings above 250 meters in China reached 90 and 129, respectively. China has become one of the centers of supertall buildings in the world. Supertall buildings in China are getting taller, more slender, and more complex. The structural design of these buildings focuses on the efficiency of lateral resisting systems and the application of energy dissipation. Furthermore, the research, design, and construction of high-performance materials, pile foundations, and mega-members have made a lot of progress. Meanwhile, more and more challenges are presented, such as the improvement of structural system efficiency, the further understanding of failure models, the definition of design criteria, the application of high-performance materials, and construction monitoring. Thus, local structural engineers are playing a more important role in the design of supertall buildings.

• Nuclear Engineering and Technology
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• v.49 no.4
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• pp.825-837
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• 2017

Due to the severe impacts of recent earthquakes, the use of seismic isolation is paramount for the safety of nuclear structures. The diversity observed in seismic events demands ongoing research to analyze the devastating attributes involved, and hence to enhance the sustainability of base-isolated nuclear power plants. This study reports the seismic performance of a seismically-isolated nuclear reactor containment building (NRCB) under strong short-period ground motions (SPGMs) and long-period ground motions (LPGMs). The United States Nuclear Regulatory Commission-based design response spectrum for the seismic design of nuclear power plants is stipulated as the reference spectrum for ground motion selection. Within the period range(s) of interest, the spectral matching of selected records with the target spectrum is ensured using the spectral-compatibility approach. NRC-compliant SPGMs and LPGMs from the mega-thrust Tohoku earthquake are used to obtain the structural response of the base-isolated NRCB. To account for the lack of earthquakes in low-to-moderate seismicity zones and the gap in the artificial synthesis of long-period records, wavelet-decomposition based autoregressive moving average modeling for artificial generation of real ground motions is performed. Based on analysis results from real and simulated SPGMs versus LPGMs, the performance of NRCBs is discussed with suggestions for future research and seismic provisions.

• Journal of the Korean Geotechnical Society
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• v.27 no.1
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• pp.5-16
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• 2011

This paper presents the results of a three-dimensional finite element analysis on load supporting mechanism of pile constructed above underground cavity in limestone rock formation. Considering a wide range of cavity conditions, the behavior of pile was studied using the bearing capacity, rock yielding pattern, stress distribution and deformation of pile head and the cavity. The results indicate that the load transfer mechanism of pile, rock yielding pattern and the reduction of bearing capacity of pile significantly vary with the location, size and length of cavity. Based on the results, graphical solutions defining the reduction of the bearing capacity with specific cavity conditions were suggested.

• Information and Communications Magazine
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• v.31 no.6
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• pp.69-74
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• 2014

기후변화에 적극 대처하여 지속적이고 안정적인 용수 공급을 위해 기존의 용수 생산 공급망에 정보통신 기술(Information & Communication Technologies, ICT)을 접목한 지능형 물관리를 위해 '스마트 워터 그리드(smart water grid)'를 구축하고자 하는 다양한 노력이 최근 들어 지속되고 있다. 즉, 스마트 워터 그리드는 기존의 수자원 관리 시스템의 한계를 극복하기 위해 첨단 정보통신기술을 이용하는 고효율의 차세대 인프라 시스템으로 다양한 수원을 활용하고 물을 효율적으로 배분 관리 운송하여 수자원의 불균형을 해소하고, 첨단 센서 네트워크를 이용해 실시간으로 수자원망의 안정성을 모니터링하는 등 용수관리 전분야에 걸쳐 양방향 실시간으로 용수정보를 감시 대응하여 용수관리와 에너지 효율의 최적화된 메가시티(mega-city)에 적합한 지능형 물관리가 가능할 것으로 예상되는 시스템이다. 따라서 본 고에서는 선진화된 상수도시스템 운영을 위해서는 현장설비의 관측값을 감시하고 제어하는 시스템에서, 운영 방식이 변경될 때마다 운영 변수간의 인과관계를 분석하고 예측할 수 있는 시뮬레이션 기능이 탑재된 상수도 운영시스템이 요구되고 있는 실정에서 용수공급 시스템의 운영 상황을 모의할 수 있는 모형 개발 및 용수공급시스템의 운영룰 모의 및 운영의사결정에 적용할 수 있는 다중수원 워터루프 시스템과 운영관리할 수 있는 S/W를 개발 내용을 소개하였다.

• East Asian Economic Review
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• v.22 no.2
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• pp.177-215
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• 2018

Trump's withdrawal from the Trans-Pacific Partnership (TPP) and his "America First" trade agenda ignite a second round of interest in mega-free trade agreements in the Asia-Pacific. Countries are evaluating alternative trade policy actions in a post-TPP era. Using national real GDP gains estimated by a modified GTAP model to construct "preference ordering" for 10 Association of Southeast Asian Nations members and their six regional dialogue partners, this paper comes up with several policy-oriented findings. First, when multilateral agreements are not possible, countries are better off with a regional trading agreement than without one. Second, the Regional Comprehensive Economic Partnership is likely to have higher beneficial impacts than the Comprehensive and Progressive Agreement for Trans-Pacific Partnership. Third, for dual-track countries, implementing both agreements is better than each separately. Fourth, impacts of open regionalism are likely to be higher than those of a closed and reciprocal one. Going forward, this paper argues that countries should adopt a "multi-track, multi-stage" approach to trade policy.

• Proceedings of the Korean Society of Disaster Information Conference
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• 2015.11a
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• pp.280-281
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• 2015

본 연구에서는 연속적인 호우 사상으로 인한 심각한 홍수를 거대홍수라고 정의하고, 일정 시간 간격으로 극한 호우 사상이 연속적으로 발생 될 수 있음을 가정하여 가상의 거대홍수 시나리오를 구성하였다. 최소 무강우 시간 결정(Inter Event Time Definition, IETD)방법을 사용하여 연속적인 강우의 시간 간격을 결정하였으며, IETD에 의해 산정된 시간 간격 안에서 호우 사상을 연속적으로 발생시켜 평창강 유역을 대상으로 거대홍수를 모의하였다. 즉, (1) 기록된 극한 호우 사상의 연속적인 발생 (2) 기왕 자료를 기반으로 빈도해석에 의해 산정된 설계 호우 사상의 연속적인 발생을 가정하여 거대홍수를 모의하였다. 연속 호우 사상으로 인한 거대홍수는 단일 호우 사상으로 인한 일반 홍수에 비해 6~17%의 홍수량이 증가하는 것으로 나타났다. 앞의 호우 사상으로 인한 홍수량에 비해 뒤에 오는 호우로 인한 홍수량의 증가는 많지 않지만, 연속적인 호우는 두 번의 홍수피해를 가져오므로 가상의 거대홍수로 인한 홍수 피해는 매우 클 것으로 판단된다. 따라서 본 연구와 같이 가상의 강우 시나리오를 통해 예상하지 못한 연속적인 홍수 재해와 같은 비상 상황에 대비할 수 있는 방안을 마련할 필요가 있을 것으로 사료된다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2010.05a
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• pp.499-502
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• 2010

Because of the substantial increase in program complexity and appearance of mega program, the needs to devide the program into small task with multiple partitions, and perform a scheduling based on the priority is required. And also, a program can be developed on specific environment according to the diversify of development environment. for instance, there are some restrictions upon O/S environment such as Embedded or Windows. therefore, the adaptive scheduling technique which perform multiple task partitioning process regardless environment or O/S is suggested. In this study, Adaptive scheduling technique algorithm and its application to be described.

• Proceedings of the KSRS Conference
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• 2003.11a
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• pp.1000-1001
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• 2003

Like other major cities in the world, Bangkok and some other cities in Thailand are expanding rapidly. The Office of Transports and Traffic Policy and Planning had selected three cities for a study of urban change; namely, Bangkok Metropolis and vicinity ( including Nontha buri, Samut Prakan , Prathum Thani, Samut Sakhon and Nakhon Pathom), Chiang Mai and Nakhon Nayok. The main objective of the study is to monitor urban development and urban extension as well as the change of landuse from farm land to urban area during two periods by using available satellite data. LANDSAT-5 TM and SPOT-HRV panchromatic were used for the first period and LANDSAT-7 ETM+ and IRS-lD panchromatic were used for the second period with a lapsed time of 14 years. I was found that during this period Bangkok Metropolis and vicinity extended 1,222 square kilometer; Chiang Mai 68.3 square kilometer, Nakhon Nayok 5.97 square kilometer. Most landuse categories which had been changed to urban were rice paddy and mixed orchard. Some suggestion for sound urban development based on satellite data was also included.

• Proceedings of the KSRS Conference
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• 2003.11a
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• pp.28-30
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• 2003

Hot Spring Law of Taiwan was passed in legislative assembly on 3 June 2003. Hot springs would become one of the most important natural resources for recreation purposes. Both public and private sectors will invest large amount of capital in this area in the near future. The value of remote sensing technology is to give a critical tool for observing the landscape to find out mega-scaled geological structures, which may not be able to be found by conventional approaches. The occurrences of the hot springs in Taiwan are mostly in metamorphic and sedimentary rocks , other than in volcanic environments. Local geothermal anomaly or heat of springs transfer by liquid convection other than conduction or radiation. The deeply -seated fractures of hard rocks are the conduit of the convection of hot water, which could be as deep as 3000 meters in a hypothetical model of Taiwan. Clues to find outcrops of hot spring can be obtained by a structure-controlled model deduced by geological lineaments observed by satellite images and stereoscopic interpretation of aerial photographs. A case study conducted in Eastern Taiwan will be demonstrated.