• Convergence Security Journal
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• v.17 no.4
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• pp.69-78
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• 2017

Since the September 11, 2001, transnational crimes and terrorism have increased, the importance of border security has been emphasized and integrated CIQ capability has been required. The U.S., Canada, and Australia are consolidating CIQ to strengthen border security, focusing on strengthening travelers and goods immigration control and airports, ports and land border security. In 2003, the U.S. established the Customs and Border Protection(CBP) under the Department of Homeland Security. Canada also established the Canada Border Services Agency(CBSA) under the Public Safety Canada in 2003. The Australian Customs and Border Protection Service was integrated with the Department of Immigration and Border Protection(DIBP) and the Australian Border Force was established in 2015. However, Korea operates a distributed border management system for each CIQ task which is unable to respond to complex border threats such as illegal immigration, entry of terrorists, smuggling of drugs, and gun trade in the airports, ports and land borders. In order to solve this problem, it is possible to consider integrating sequentially the customs and quarantine services which have high similarities, and to integrate the entire CIQ tasks with the Korea Customs Service delegated to the immigration control duties in the mid to long term. There is also a plan to benchmark the CIQ single accountability agencies in the U.S., Canada, and Australia in accordance with the Korean situation and to establish a new integrated border security organization.

• Bulletin of the Korean Chemical Society
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• v.32 no.2
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• pp.635-638
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• 2011

A simple and efficient method for the synthesis of $\beta$-amino carbonyl compounds by one-pot three-component Mannich reaction of acetophenone, aromatic aldehydes and aromatic amines using a carbon-based solid acid (CBSA), as an effective and reusable catalyst, is described. The present methodology offers several advantages such as simple procedure with an easy work-up, shorter reaction times, and high yields.

• Journal of Agricultural Extension & Community Development
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• v.17 no.4
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• pp.799-825
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• 2010

The purpose of the present study is to provide policy implications for successful development of the metropolitan economic zone in Korea followed by in-depth case studies on the US Metropolitan Economic Region. This study looked into diverse experiences of the US mega regions investigating their key strategies, requirements and standards, etc. Urban areas in the US are designated based on CBSA, a standard for statistical area since 1950. The US has a clear standard to define rural and suburban area and is trying to reflect urban structural changes including suburbanization. The US annexation system is relatively simple to operate. Furthermore, the system helps the growth of rural areas by gradually incorporating rural areas into urban areas. We found that action plans of the US mega regions facilitate strategic growth and development for balanced territorial development, incorporating multi-dimensional and comprehensive approaches. We also found that the US mega regions are designated with regard to the local natures. Couple of policy implications were extracted from the US experiences. First, since the construction of mega regions in Korea concerns less on the inter-regional connections with other regions, we need to incorporate diverse standards to divide the regions with respect to the spatial and local characteristics. Second, local governments should collaborate with each other for successful economic development of the metropolitan economic zones. Administrative districts renovation can be a immediate and effective solution to facilitate the collaboration. We recommended to consider consolidating administrative areas to construct successful metropolitan economic zones.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
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• v.16 no.4 s.95
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• pp.366-372
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• 2005

This paper presents analysis of a slot array antenna having a low side lobe level and high front-to-back ratio for a repeater system of a satellite DMB(Digital Multimedia Broadcasting) service. Antennas for this repeater system require a high gain and enough isolation to reduce interferences between signals in system. Therefore, it is necessary to suppress a side lobe level and to increase front-to-back ratio. Unlike a structure 134 by lossy microstrip lines, in this work a single cavity-backed slot antenna array using a single waveguide feed is proposed to obtain the reliability for high power handling and high radiation efficiency. The side lobe level and front-to-back ratio are enhanced with tapered array technique and an optimized vertical reflector. The measured side lobe levels in H- and E-plane are under $-33.24\;\cal{dB}$ and $-35.78\;\cal{dB}$, respectively. The front-to-back ratio over $37.84\;\cal{dB}$, and the peak gain of over $17\;\cal{dBi}$ are measured.