Companies strive for quality improvement and use process data obtained through measurement process to monitor and control the process. Measurement data contain variation due to error of operator and instrument. The total variation is sum of product variat

우리나라의 주요 교역권은 아시아, 미주, 유럽 교역권으로 나눌 수 있다. 일반적으로 대량의 화물운송은 해상운송이 주를 이루지만 다른 지역과 다르게 유럽 교역권은 철도 운송이 가능하다. 또한, 중국의 성장으로 동북아 물류 중심지로서의 경쟁력이 약화된 우리나라는 지금의 경쟁구조와는 다른 방안인 철도운송에 주목할 필요가 있다. 이러한 배경 하에 본 연구에서는 한반도 종단 철도(TKR)와 시베리아 횡단철도(TSR)를 이용한 유럽 지역과의 운송 경로를 비교하여 경제성 분석에 주안점을 두었다. 분석의 요소로는 운송거리, 운송기간, 운송비, 추가비용을 중심으로 사용하였으며 분석 결과 6가지의 운송경로 중에서 TKR과 연계한 TSR(Route 1)이 경제적이라는 분석 결과가 나왔다. 따라서 향후 러시아 푸틴정부의 극동발전 전략에 대비하여 우리나라는 TKR과 TSR의 철도운송을 활용하는 것이 국가 경쟁력을 높일 수 있는 방안이 될 것이다.

In recent years China has experienced two forms of extreme macroeconomic imbalance: an expenditure imbalance in the sense of very high investment and very low consumption, giving rise to rapid capital accumulation; and an imbalance between expenditure and production, producing external imbalance, i.e. a huge surplus on the current account of the balance of payments. This paper explores the current state of the external imbalance in China, and reviews the factors underlying the pre-2008 rising and the post-2008 drop in China’s current account surplus. The paper says that China’s current account surplus must be modest in recent years. However, despite the fact that China’s recent current account is likely to stay below its precrisis range, it is too early to conclude that “rebalancing” has been truly achieved in China. Certainly, the policy thrust of the 12th Five Year Plan is very much focused on raising household income, boosting consumption, and facilitating an expansion of the service sector. In the coming years, if these ongoing structural reforms are implemented, China does have the potential to hand-off from an investment-driven to a consumption-driven decline in its external imbalance.

본 연구에서는 기술의 수명주기에 영향을 미치는 요인에 대해 분석하고, 기존 표준모델에서 활용되고 있는 평가지표를 근거로 개별기술의 수명에 영향을 미칠 평가지표를 분석해 이를 정량화하여, 피인용특허수명(CLT)을 기반으로 개별기술의 속성이 반영된 기술 수명주기를 산출하는 개선방법을 제안하였다. 본 연구에서 제안한 방법론은 기존 표준모델의 기술수명주기 산출방법인 한계점을 개선할 수 있는 방법으로 평가대상기술 관계자들에게 도출결과에 대한 설득의 용이성과 기존에 비해 보다 합리적인 기준을 제시함으로서 기술수명주기 도출결과의 타당성 및 활용성을 배가시킬 수 있을 것으로 기대된다.

본 연구에서는 유전자, 종, 생태계, 문화로 구분한 4종류의 분류 기준에 따라 14 종류의 평가 지표를 선정하였고 이중 가치 평가가 가능한 11개 인자를 대상으로 화폐적 평가를 수행하였다. 산림생물다양성을 저해하는 부의 경제효과 인자인 산림훼손, 산불, 병충해, 산림전용과 국가의 전통지식 권리를 보상해주어야 하는 나고야의정서가 발효된다는 가정에서 비용을 산출한 결과, 2,545억 원으로 평가되었다. 산림생물다양성에 의한 양의 경제효과에는 바이오산업, 자생종, 임산물 생산, 보호구역, 산촌 소득적인 측면에서 이루어졌으며 그 가치는 연간 6조 7,200억 원으로 평가되었다. 산림생물다양성으로 인한 경제적 순편익은 연간 6조 4,655억 원으로 나타났다.

Technical Barriers to International Trade are emerging as main non-tariff barriers and so MRA is getting widespread. In addition, a significant amount in international trade occurs as intra-industry trade instead of inter-industry trade. Based on the cost reduction of testing and certification except many other effects of MRA, we compute the economic impact of MRA quantitatively. First, we use a Cournot model for intra-industry trade to compute the effect of trade balance caused by the cost reduction of testing and certification. Second, we estimate the effect on production inducement, value added inducement and employment inducement via input-output analysis.

Companies strive for quality improvement and use process data obtained through measurement process to monitor and control the process. Measurement data contain variation due to error of operator and instrument. The total variation is sum of product variation and measurement variation. Gage R&R is for repeatability and reproducibility of measurement system. Gage R&R study is usually conducted to analyze the measurement process. In performing the gage R&R study, several parameters such as the appropriate number of operators (o), sample size of parts (p), and replicate (r) are used. In this paper we propose how to determine the optimal combination of number of operators (o), sample size of parts (p), and replicates (r) considering measurement time and cost by statistical method.

When the number of items of same type of industrial property is quite large, calculating depreciation for a group of such items may be more efficient than depreciating each item separately. Several different depreciation systems may be used for group depr

This current survey was conducted to examine consumer attitudes toward factors determining beef purchasing and improving distribution systems. The frequency of beef purchasing was shown to reflect social and economic status, where inhabitants in large cities, such as Seoul, with higher salaries showed a higher frequency. In addition, consumers that were in their forties bought beef more frequently than consumers that were in their twenties. Consumers in Seoul and the megalopolis with a monthly income of higher than 200 million won preferred to purchase meat from department stores and discount markets. In contrast, people in small cities with lower incomes tended to buy meat from butcher shops and brand shops. In a question regarding unsatisfaction factors of retail beef, individuals that were in their thirties with a high income had concerns associated with packaging problems. For people under thirty with low income, the consistency of quality and price were the prime concerns. In regards to the beef grading system, consumer response varied between inhabitants, monthly income and age group, where consumers from small cities that were in their twenties and forties with a low income had a negative viewpoint. For the differential beef distribution system, housewives between the ages of 30 and 40 from a small city with an income higher than 200 million won had a positive response; however, a large number of consumers were not familiar with this system. The most demanding beef cuts were in the following order: loin, flank and rib. In addition, the most important factors determining purchasing beef were as follows: price, breed and portion.

This paper considers an economic design problem of a tree-based network which is a kind of computer network. This problem can be modeling to be an objective function to minimize installation costs, on the constraints of spanning tree and maximum traffic c

香港和澳门在政治稳定的基础上今后相当时期内、可望维持经济发展。 特别香港、澳门经济是在与中国大陆签署了CEPA的基础上、对中国经济将加速结合。但是、这并不会造成任何问题都可以看到。2006年、在澳门当地能够见反中示威者、在香港普通话的使用只是没有达到完美的程度。不过在“一国两制”的独特经济体系维持、香港与澳门的经济将来是非常光明的展望。尤其是香港、一个彻底的市场经济似乎不断保证、作为一个国际商业和金融中心。而且、基于赌场业的澳门的经济预计将持续下去、由于强化市场营销与服务和基础设施的热潮继续扩大。与中国经济一体化在中国政府的积极努力、可望加快。今后、中国政府积极努力港澳扩大进入在珠江三角洲经济区的一直、通过港珠澳大桥、广州-深圳-香港高速铁路等等各种各类基础设施建设。这是珠江三角洲地区一直在推动产业升级。特别是、通过的2005年7月泛珠三角区域合作发展规划纲要、珠江三角洲和香港/澳门加快进一步一体化进程。

이 연구는 목재수납장의 잠재적 구매자를 대상으로 소비성향 및 사회․경제적 특성에 따른 산림인증의 인식정도를 파악하기 위해 수행하였다. 총 90부의 설문지 중 유효부수 88부를 분석한 결과, SFM과 FSC 에 대한 전체 응답자의 인식도는 평균 2.25와 2.20(5점 리커트 기준)으로 비교적 낮게 나타났다. 친환경 그룹과 비친환경 그룹의 응답자는 80.7％와 18.2％의 비중을 차지하였으며, 모든 설문항목에 대해 그룹 간 유의한 차이를 나타냈다. 각 그룹 내에서 SFM과 FSC를 인식하고 있는 응답자는 친환경 그룹이 약 3 1％, 비친환경 그룹이 5.6％(SFM)와 2.8％(FSC)를 차지하였다. 소비자 유형별 응답자의 사회․경제적 특성은 친환경 그룹의 기혼율과 평균연령 및 월평균 가계소득이 비친환경 그룹에 비해 약 1.3배 이상 높은 것으로 나타났다.

 ,  , This study was conducted to develop economic injury level (EIL) of onion thrips, Thrips tabaci, on welsh onion (Allium fistulosum L. var) in the early transplanting stage. The changes of welsh onion biomass, yield loss, and T. tabaci density were investigated according to the inoculation periods of T. tabaci. In the early transplanting stage of welsh onion, the yield loss (%) increased with increasing inoculation periods: 17.0, 53.3, 38.4, and 80.8% yield loss in 5, 10, 15, and 20 d inoculation periods, respectively. The relationship between Cumulative Insect Days (CID) of T. tabaci and yield loss (%) of welsh onion was well described by a nonlinear logistic equation. Using the estimated equation, EIL of T. tabaci on welsh onion was estimated to 30 CID per plant based on the yield loss 12% (an empirical gain threshold 5% + marketable rate 93% of welsh onion). ET was calculated to 24 CID, which corresponds to 80% of EIL. Until a more defined EIL-model is developed, the present results should be useful for T. tabaci management in early growth stage of welsh onion. The effect of T. tabaci attack on the yield of welsh onion in late growing season (120 days after transplanting) was also examined. The yield of welsh onion increased at a low population density of T. tabaci and decreased at higher densities, showing a typical over-compensatory response.