• Transactions on Electrical and Electronic Materials
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• 제12권3호
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• pp.119-122
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• 2011

A series of mesoporous silicalites was synthesized using different compositions of tetraethylorthosilicate and methyltriethoxysilane (MTES) as the silica source. Cetyltrimethylammonium bromide was used as the organic template. Their detailed pore structures were investigated by transmission electron microscopy, X-ray diffraction, and N2 adsorption method. The thermal properties of these silicalites were studied by thermogravimetric analysis. The increased amount of MTES destroyed mesoporous channels and reduced pore sizes from 3.4 nm to 2.8 nm in calcined silicalites. The calcined silicalite transformed completely into an amorphous state at 30% MTES loading. Methyl pending groups of MTES hindered the structural ordering of ≡Si-O- frameworks, resulting in an amorphous structure. This was caused by the insufficient formation of supramolecular assembly with the organic template. No capillary condensation step was found in MS 7/3 silicalite. The other capillary condensation steps shifted toward the lower relative pressure with increasing MTES content, indicating the reduction of pore sizes.

• Journal of Ceramic Processing Research
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• 제13권spc2호
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• pp.407-410
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• 2012

The properties of Al-doped ZnO (AZO) films were investigated as a function of H2/(Ar + H2) gas ratio using an AZO (2 wt% Al2O3) ceramic target in a radio frequency (RF) magnetron sputtering system. The deposition process was done at 200 ℃ and in 2 × 10-2Torr working pressure and with various ratios of H2/(Ar + H2) gas. During the AZO film deposition process, partial H2 gas affected the AZO film characteristics. The electron resistivity (~ 9.21 × 10-4 Ωcm) was lowest and mobility (~17.8 ㎠/Vs) was highest in AZO films when the H2/(Ar + H2) gas ratio was 2.5%. When the H2/(Ar + H2) gas ratio was increased above 2.5%, the electron resistivity increased and mobility decreased with increasing H2/(Ar + H2) gas ratio in AZO films. The carrier concentration increased with increasing H2/(Ar + H2) gas ratio from 0% to 7.5%. This phenomenon was explained by reaction of hydrogen and oxygen and additional formation of oxygen vacancy. The average optical transmission in the visible light wavelength region over 90% and an orientation of the deposition was [002] orientation for AZO films grown with all H2/(Ar + H2) gas ratios.

• 한국지역지리학회지
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• 제5권2호
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• pp.1-14
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• 1999

한국의 지역사회는 근대화 및 세계화시대를 거치면서 중앙에의 종속성 심화와 세계자본에의 식민화 가능성 증대라는 위기의 상황에 봉착해 있다. 이러한 시대적 상황을 타개하기 위해서는 무엇보다도 일상생활과 생활공간에 있어서의 대응 전략이 요망되며, 그러한 전략 개발의 바탕이 되는것이 바로 지역정체성의 확립이다. 최근 지리학계에서 소지역, 즉 일상생활공간에 대한 관심이 고조되고 있는 것은 이러한 이유 때문이라고 할 수 있다. 하지만 소지역연구에 대한 이론적 논의들은 많이 있어 왔으나, 구체적인 소지역을 대상으로 한 경험적 연구는 그리 많지 않은데, 이는 연구를 위한 자료와 방법의 제한성과 관련이 있다고 판단된다. 지역신문은 대체로 행정구역상 군, 중소도시, 대도시의 구 단위의 소지역에서 발간되는 신문으로, 지역에 밀착된 작은 뉴스들이나 생활정보 등을 주요 기사로 다루고 있다. 따라서 지역신문은 지역정체성을 확인하고, 그 형성 메카니즘을 분석할 수 있는 귀중한 자료인 것이다. 지역신문에 관한 지리학적 관심은 우선 지역신문의 지리적 분포 현황과 그 시기별 변천을 추적, 정리하는 작업으로부터 구체화되어야 할 것이다. 또한 지역의 성격을 밝히기 위한 정보원으로써도 적극 활용될 수 있을 것이다. 그리고 지역신문을 통한 공동체 구성원들의 통합 과정과 이를 배경으로 한 지역의 중심성, 흑은 자생력의 확보 여부에 대해서도 연구가 이루어져야 할 것이다.

• 한국지역지리학회지
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• 제4권1호
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• pp.77-98
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• 1998

본 연구는 제조업 중에서도 지역성장 및 연관산업에 대한 파급효과가 가장 큰 부문인 자동차 산업을 대상으로 새로운 조립공장 입지가 지역경제의 성장 및 발전에 미치는 영향을 경계지리학적 관점에서 논의했다. 우리 나라의 대표적 신산업지구로 발전하고 있는 광양만권의 율촌 산업단지를 사례로, 한국 최대의 자동차 조림기업인 현대자동차의 새로운 조립공장 입지가 광주 전남의 자동차산업 전반에 어떠한 영향을 미칠 것인지, 그리고 보다 미시적 수준에서 광양만권에 어떠한 파급효과를 초래할 것인지 탐색해보고자 했다. 노동집약적 특성과 자본 및 기술집약적 특성을 동시에 지니는 자동차 조립 및 부품생산 부문을 대상으로 첫째, 조립부문-부품생산부문의 공간적 비공간적 연계 특성을 규명하고 둘께, 광주 전남지역 자동차산업의 현 주소 및 이에 대한 신설 조립공장의 파급효과를 분석하며 셋째, 신설 조립공장 입지에 따른 광양만권 역내의 부품산업 발전 가능성을 전망함으로써 지역개발의 파급효과를 극대화할 수 있는 방안을 모색해보고자 하는 것이 본 연구의 목적이다.

• 수완나부미
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• 제6권1호
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• pp.107-135
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• 2014

Cham identities which are socially constructed and multilayered, display their markers in a variety of elements, including homeland attachment to the former Kingdom of Champa, religion, language and cultural traditions, to mention a few. However, unlike other contemporary diasporic experience which binds the homeland and the host country, the Cham diaspora in Cambodia has a unique pattern as it seems to have no voice in the political and economic spheres in Vietnam, its homeland. The relations between the Cham in Cambodia and Vietnam seem to be limited to cultural heritages such as Cham musical traditions, traditional clothing, and the architectural heritage. Many Cham people have established networks outside Cambodia with areas of the Muslim world, like Malaysia, Indonesia, southern Thailand and the Middle Eastern countries. Pursuing education or training in Islam as well as working in those countries, especially Malaysia has become a way for the Cham to widen their networks and increase their knowledge of particularly, Islam. Returning to Cambodia, these people become religious teachers or ustadz (Islamic teachers in the pondok [Islamic boarding school]). This has developed slowly, side by side with the formation of their identity as Cham Muslims. Among certain Cham, the absence of an ancient cultural heritage as an identity marker has been replaced by the Islamic culture as the important element of identity. However, being Cham is not a single identity, it is fluid and contested. Many scholars argue that the Cham in Cambodia constitute three groups: the Cham Chvea, Cham, and Cham Bani (Cham Jahed). The so-called Cham Jahed has a unique practice of Islam. Unlike other Cham who pray five times a day, Cham Jahed people pray, once a week, on Fridays. They also have a different ritual for the wedding ceremony which they regard as the authentic tradition of the Cham. Indeed, they consider themselves pure descendants of the Cham in Vietnam; retaining Cham traditions and tending to maintain their relationship with their fellow Cham in Central Vietnam. In terms of language, another marker of identity, the Cham and the Cham Jahed share the same language, but Cham Jahed preserve the written Cham script more often than the Cham. Besides, the Cham Jahed teaches the language to the young generation intensively. This paper, based on fieldwork in Cambodia in 2010 and 2011 will focus on the process of the formation of the Cham identity, especially of those called Cham and Cham Jahed.

• 한국경제지리학회지
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• 제27권1호
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• pp.38-52
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• 2024

산업생산 전반의 생산성 향상에 기여하는 디지털전환 산업과 함께 탄소중립 및 지속가능 성장을 위한 스마트그린 산업이 미래산업으로 성장하고 있다. 이 논문은 스마트그린 산업의 성장 동인과 입지패턴 변화 분석을 통해 미래산업 혁신생태계에서의 동 산업의 위상 및 역할 모색을 연구목적으로 한다. 동 산업은 수도권과 비수도권 모든 지역에서 증가세를 보이며, 비수도권 비도시 지역에서도 뚜렷한 산업 성장세를 확인할 수 있다. 특히, 스마트 그린 산단 시범사업, 광주전남 혁신도시 조성, 신재생에너지 정책 추진 등으로 호남권 및 충남 해안지역의 핵심 집적지(HH형) 부상, 경상권 지역에 고립 중심지(HL형) 형성 등 비수도권 지역에서 신재생에너지 생산기업의 집적이 이루어지고 있다. 따라서 스마트그린 산업은 정책적 요인이 성장 촉발 요인이며, 다극형 허브(Hub)-스포크(Spoke) 네트워크 구조를 형성하는 미래산업 혁신생태계에서 비도시지역의 다양한 특성화 소거점(Spoke) 형성을 촉진할 것으로 기대된다.

• 한국지역지리학회지
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• 제12권3호
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• pp.364-381
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• 2006

경북 문화산업은 문화산업기반이 미약하여 소규모 영세업체 중심의 상품화 초기단계에 머무르고 있을 뿐만 아니라 저부가가치 부문인 제작이 중심이 되고 있다. 또한 기업간 네트워크의 미약으로 혁신네트워크 및 혁신환경이 활성화되지 못하고 있다. 따라서 경북 문화산업체는 산업화 기반 구축(물리적 인프라)과 함께 지식 및 정보의 활발한 교류의 장(場)을 필요로 하고 있다. 다양한 문화적 산업적 환경을 가진 여러 지역으로 이루어져 있는 경북의 실정에 맞게 각 지역의 장점을 살리는 방향에서 분산화된 집적 형태의 경북문화산업클러스터를 구축한다. 그리고 경북내 소규모 문화산업집적지 및 지원센터를 네트워킹할 수 있는 문화산업클러스터 허브기관(문화산업지원 전담기관)을 설립하여 문화산업체가 필요로 하는 리얼서비스를 제공하고, 산학연관 네트워크를 온라인과 오프라인 상에서 구축 강화함으로써 지식 및 정보의 장을 제공한다. 또한, 경북문화산업은 제작업체 중심의 지역내 외주관계가 뚜렷하므로 제작업체를 중심으로 콘텐츠창작, 홍보 마케팅, 유통 배급 등 연관업체들을 아우르면서, 한편으로는 구미 IT산업클러스터, 대구문화산업클러스터 등과 연계함으로써 가치사슬을 업그레이딩해나간다.

• Ocean and Polar Research
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• 제45권1호
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• pp.23-31
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• 2023

The core of the foreign policy of the Yoon Suk-yeol government is the promotion of active economic and security diplomacy as indicated in Policy Tasks No. 98. To this end, economic consultative bodies such as Regional Comprehensive Economic Partnership Agreement(RCEP), Comprehensive and Progressive Agreement for Trans-Pacific Partnership (CPTPP), and Indo-Pacific Economic Framework (IPEF) are taking the initiative to respond to the formation of supply chain, human rights, environment, and digital-related norms, and actively support Korean companies' overseas expansion. Due to the nature of the Ministry of Oceans and Fisheries (MOF) as an organization established centered on the space of the ocean, the MOF faces difficulties in bringing the functions of other ministries into the space of the ocean. Considering the vision, objectives, and detailed plans of the MOF, the contribution of the MOF in the field of active economic security, one of the main foreign policies of the Yoon Suk-yeol government, is perhaps too obvious. However, since the re-launch of the MOF, the ODA budget for the oceans and fisheries sector is too small compared to other ministries, so even if new policy demands are discovered, there are many difficulties in implementing these policies in practice. Recognizing these problems, this paper examines the background and contents of foreign policies that have been promoted for the efficient promotion of RCEP, CPTPP and IPEF and introduces the areas of cooperation in the oceans and fisheries sector in these foreign policies.

• Asian Journal of Atmospheric Environment
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• 제12권1호
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• pp.17-29
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• 2018

For the first time in the city of Riyadh, the formation of $O_3$ and its relationship with NO and $NO_2$ ($NO_x$) was investigated. Throughout the summer $O_3$, NO, and $NO_2$ were collected from three locations: residential, industrial, and rural areas. During the sampling period $O_3$ concentrations exceeded 1-hour local standards a few times yet remained consistent with the standards most of the time. The $O_3$ concentrations were observed highest in the rural location and lowest in the industrial area. The diurnal variation of NO followed a double peak: one in the morning and the other in the evening, representing the traffic pattern. Early morning NO peaks were observed in the rural location, which were attributed to the movement of NO from other locations. The $O_3$ concentrations depicted typical pattern, increasing after sunrise and reaching its maximum during midday. The highest $O_3$ concentrations were observed in the rural location followed by the residential and industrial. $NO_2$ photolysis rates were 3-4 times higher compared to other similar investigations, potentially due to intense solar radiation. A strong negative correlation was observed between $NO_x$ and $O_3$ values in the industrial location indicating photochemical activities around the industrial area were higher, likely due to additional $NO_x$ emissions from industries. Regression analysis of $NO_x$ and OX ($O_3+NO_2$) indicated that in residential and industrial locations at nighttime there were large $NO_x$ independent regional contributions which is attributed to VOCs. The Weekend Effect was observed in the city potentially due to the production of the OH radical and subsequent reactions with VOCs implying that the area is VOC-sensitive.

• International Union of Geodesy and Geophysics Korean Journal of Geophysical Research
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• 제26권1호
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• pp.15-29
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• 1998

The numerical simulation of heavy precipitation event occurred in the central Korean Peninsula on July 26-28, 1996 was performed using the fine mesh model. ARPS (Advanced Regional Prediction System) developed by the CAPS (Center for Analysis and Prediction of Storms). Usually, the heavy rainfalls occurred at late July in the Korean Peninsula were difficult to predict, and showed very strong rainfall intensity. As results, they caused a great loss of life and property. As it usual, this case was unsuccessful to predict the location of rain band and the precipitation intensity with the coarse-mesh model. The same case was, however, simulated well with fine-mesh storm-scale model, ARPS. Moisture band at 850 hPa appeared along the Changma Front in the area of China through central Korea passed Yellow Sea. Also the low-level jet at 700 hPa existed in the Yellow Sea through central Korea and they together offered favorable condition to induce heavy rainfall in that area. The convective activities developed to a meso-scale convective system were observed at near the Yangtze River and moved to the central Korean Peninsula. Furthermore, the intrusion of warm and moist air, origninated from typhoon, into the Asia Continent might result in heavy rainfall formation through redistribution of moisture and heat. In the vertical circulation, the heavy rainfall was formed between the upper- and low-level jets, especially, the entrance region of the upper-level jet above the exit the region of the low-level jet. The low level convergence, the upper level divergence and the strong vertical wind were organized to the very north of the low level jet and concentrated on tens to hundreds km horizontal distance. These result represent the upper- and low-level jets are one of the most important reasons on the formation of heavy precipitation.