• 한국재료학회지
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• 제18권3호
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• pp.148-152
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• 2008

A new cost-effective atomic layer deposition (ALD) technique, known as Proximity-Scan ALD (PS-ALD) was developed and its benefits were demonstrated by depositing $Al_2O_3$ and $HfO_2$ thin films using TMA and TEMAHf, respectively, as precursors. The system is consisted of two separate injectors for precursors and reactants that are placed near a heated substrate at a proximity of less than 1 cm. The bell-shaped injector chamber separated but close to the substrate forms a local chamber, maintaining higher pressure compared to the rest of chamber. Therefore, a system configuration with a rotating substrate gives the typical sequential deposition process of ALD under a continuous source flow without the need for gas switching. As the pressure required for the deposition is achieved in a small local volume, the need for an expensive metal organic (MO) source is reduced by a factor of approximately 100 concerning the volume ratio of local to total chambers. Under an optimized deposition condition, the deposition rates of $Al_2O_3$ and $HfO_2$ were $1.3\;{\AA}/cycle$ and $0.75\;{\AA}/cycle$, respectively, with dielectric constants of 9.4 and 23. A relatively short cycle time ($5{\sim}10\;sec$) due to the lack of the time-consuming "purging and pumping" process and the capability of multi-wafer processing of the proposed technology offer a very high through-put in addition to a lower cost.

• Strategy21
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• 통권37호
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• pp.65-103
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• 2015

This study is an attempt to look into the future role of the ROKN and to provide a strategic way forward with a special focus on naval strategic concept and force planning. To accomplish this goal, this research takes four sequential steps for analysis: 1) assessing the role and utility of naval power of ROKN since its foundation back in 1945; 2) forecasting features of various maritime threats to influence the security of Korea in the future directly or indirectly; 3) identifying the roles to be undertaken by future ROKN; and 4) recommending Korean way of naval force planning and the operational concept of naval power. This study seeks to show that ROKN needs comprehensive role to better serve the nation with respect to national security, national prosperity and development, and future battle-space management. To safeguard the national security of Korea, it suggests three roles: 1) national guard for the peaceful unification; 2) protector of the maritime sovereignty; and 3) suppressor to maritime threats. Three more roles are highlighted for national prosperity: 1) escort of the national economy; 2) guardian for national maritime activities; and 3) contributor to the world peace. These roles need to be closely connected with the role for the battle-space management. This paper addresses the need for a dramatic shift of the central operational domain from land to maritime in the future. This will eventually offer future ROKN a leading role for developing strategic concept and force planning rather than merely a supporting one. This study finally suggests 'balanced' strategy both in concept development and force planning. A balanced force planning is a 'must' rather than an 'option' when considering a division of function between Task Fleets and Area Fleets, constructing cutting-edge conventional forces such as Aegis destroyer, CVs, or submarines, and the mix of high-profile platform and low-profile when composing future fleets. A 'balance' is also needed in operational concept. The fleet should be prepared to fulfill its missions based on two different types of force operation i.e., coercive or cooperative application of the utility of naval force. The findings and recommendations of the study are relevant today, and will be increasingly important in the future to achieve various political goals required by enhancing the utility of naval power.

• 유통과학연구
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• 제9권2호
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• pp.111-122
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• 2011

본 연구는 국내사업체 수에서 87.9% 이상을 차지하고 있는 소상공인들의 직능업종별 조직화에 대한 실증적 연구이다. 연구문제의 검증을 위하여 직능단체의 조직화를 국내 상황에 적합하도록 도소매직능, 음식숙박직능, 개인서비스직능의 세 가지 형태로 구분하여 실증적인 분석을 시도하였다. 연구결과 첫째, 조직화 참여동기에서 인력구인난에 대한 반응은 음식직능이 가장 높은 것으로 나타났다. 외부경쟁심화와 자금압박으로 인한 반응은 개인 서비스 직능이 가장 높게 나타났다. 이를 통하여 업종별 직능별로 경영애로사항과 조직화 참여동기에는 차이가 존재함이 새롭게 밝혀졌다. 둘째, 조직화 기대치의 경영공정 개선분야에서는 음식직능이, 단순한 최종성과 개선만을 기대하는 분야에서는 소매직능이 가장 높게 나타났다. 셋째, 소상공인 직능별 조직화요인과 경영성과에 대한 분석에서는 참여동기는 소상공인의 재무적인 경영성과에 부(-)의 영향을 주고 있는 것으로 나타났다. 이와 반대로 조직화 기대치와 정책수요는 경영성과에 직접적인 정(+)의 영향을 주는 것으로 나타났다. 이러한 결과가 의미하는 바는, 향후 정부에서는 직능단체별로 맞춤형 중장기 경영전략을 수립하여야 하는 필요성과 더불어, 현재 소상공인 조직화는 일천한 상황에 있지만, 최종적으로 창업 성공과 창업 실패를 구분하는 분기점이 된다는 점을 밝혀주었다.