• 한국군사과학기술학회지
• /
• 제18권2호
• /
• pp.125-130
• /
• 2015

Vehicles and UGV(Unmanned Ground Vehicle) need a variety of road informations, such as road profile, soil type and soil water contents, to run a cross country course. Especially, soil water contents are very important factor to judge the vehicle mobility, because it can change soil strength. This paper describes the real-time measuring method of soil water contents by using the soil thermal conductivity.

• 한국정밀공학회지
• /
• 제24권2호
• /
• pp.47-57
• /
• 2007

The vibration environment essentially companied by vehicle operation on the road is determined by the shape of road surface, which is called profile. In general, the profile and severity of unpaved road is an important issue in the reliability of durability test for vehicles. In order to maintain severity of unpaved road, it is necessary to develop profilometer system. We developed profilometer system which is composed of data processing computer, power unit, air compressor and sensors. This paper focuses on the severity management of unpaved test courses using neural networks. This paper presents the maintenance range for cross-country course in CPG(Chang-won Proving Ground) and the evaluation of similarity degree between unpaved roads.

• 대한공간정보학회지
• /
• 제2권1호
• /
• pp.107-119
• /
• 1994

현대전은 정보전쟁이라 일컫을 만큼 첨단무기를 운용하는 정보체계의 중요성이 부각되고 있다. 지형분석 기법은 전시에 매우 중요한 요소이기 때문에, 육군은 전산기에 기반을 둔 지형분석체계를 꾸준히 발달시켜 왔다. 본 논문에서는 여러 가지 지형자료를 중첩시켜 분석한 야지기동분석도를 제시하였고 이러한 분석을 통해서 평시 작계임무수행시 최적의 작전계획을 수립할 수 있는 지형정보의 자료기반구축 방법을 제시하였다

• 대한안전경영과학회:학술대회논문집
• /
• 대한안전경영과학회 2004년도 춘계학술대회
• /
• pp.33-39
• /
• 2004

The chemical factory deals with dangerous element and more advance, human-error analyzes and becomes effective research for the country and region, this paper analyes the form of work-miss on human-error according to a safety accident for domestic chemical factory from 1999-2002. It include the present contents and raise issues human knowledge, behavior, judgment, sensibility as an important counterplan that makes the safety solution of work miss. For the point of view of human knowledge, it takes color standard for works to be effective in work place. for behavior, the test has been for risk point of work place and infra worker movement, also the workers performed professional work as classify according to work. for judgement, the valuation sheet is reflected to minimize the human -error and the 3rd supervisor does a cross-check audit beforehand. For sensibility, it is applicable for human relations, information, communication by program to the consciousness and an attitude of worker-supervisor.

• 대한전기학회:학술대회논문집
• /
• 대한전기학회 2000년도 하계학술대회 논문집 C
• /
• pp.2153-2155
• /
• 2000

The not an organization a branch stream the maintenance factor class on a class and the roadway type for roadway lighting design, the facted an insufficiency maintenance factor to apply our the country conditions. The consideration of maintenance factors is not being fully applied for roadway lighting design in Korea. This paper consider optical characteristics and maintenance factors as well as LID of Luminaires in designing roadway lighting. Consideration of maintenance factors that are neme specified according to LDD(Luminaire Dirt Depreciation), LLD(Lamp Lumen Depreciation), AADT(Average Annual Daily Traffic) based on IESNA regulation. The analyzed optical characteristics are applied for stagger and cross roadway types with maintenance factors in the range of 0.51$\sim$1.00 and equipment factor of 0.9.

• KDI Journal of Economic Policy
• /
• 제37권1호
• /
• pp.44-72
• /
• 2015

This study evaluates the economic impact of product innovation by using firm-level data from the Community Innovation Survey conducted in Japan. It accounts for possible technological spillover from innovation activities and examines the extent to which new-to-market product innovations contribute to firm performance. Econometric analysis using a simultaneous equation model reveals that new-to-market product innovation is likely to increase a firm's sales without cannibalizing those of existing products and generate more technological spillover to other firms. Moreover, such innovation is more likely to emerge from firms collaborating with academic institutions. The paper concludes by discussing policy implications of these findings as well as points to the importance of cross-country comparison between Korea and Japan.

• Current Research on Agriculture and Life Sciences
• /
• 제4권
• /
• pp.154-162
• /
• 1986

This paper is studied in order to examine eight provinces as Agricultural zone in the early Chosun-Dynasty. The research method of this study depends on discriminant analysis. The research data is obtained from geography of Sejong sillok. In this approach, we believe the possibility of more scientific analysis of agricultural zone. So all cross-sectional data of this period were analysed by means of the discriminant analysis method. In the discriminant analysis of the eight provinces, 54.6% of the country were discriminated. In the territorial map, Kyongsang and Cholla were crossly adjoined and Chungcheong was located in the middle of them. While, Kyonggky and Hwanghae were adjoined in the center, and Pyongan and Hamgil were crossly adjoined, too. And Kangwon was located in the middle of them. Consequently their regional distribution varied widely and the agriculture of this period had considerable regional gaps.

• Communications for Statistical Applications and Methods
• /
• 제29권6호
• /
• pp.679-694
• /
• 2022

Mortality risk is a significant threat to individual life, and quantifying the risk is necessary for making a national population plan and is a traditionally fundamental task in the insurance and annuity businesses. Like other advanced countries, the sustainability of life pensions and the management of longevity risks are becoming important in Asian countries entering the era of aging society. In this study, mortality and pension value sustainability trends are compared and analyzed based on national population and mortality data, focusing on four Asian countries from 1990 to 2017. The result of analyzing the robustness and accuracy of generalized linear/nonlinear models reveals that the Cairns-Blake-Dowd model, the nonparametric Renshaw-Haberman model, and the Plat model show low stability. The Currie, CBD M5, M7, and M8 models have high stability against data periods. The M7 and M8 models demonstrate high accuracy. The longevity risk is found to be high in the order of Taiwan, Hong Kong, Korea, and Japan, which is in general inversely related to the population size.

• Journal of Information Technology Applications and Management
• /
• 제27권6호
• /
• pp.53-73
• /
• 2020

Many prior studies have been conducted that positive reviews increase the intention to purchase. However, there are very few papers that have studied the impact of review search on purchase satisfaction. It is meaningful to study the impact of review search on purchase satisfaction as it can lead the business successfully by inducing repurchase. There is also no study of how review search have different effects on purchase satisfaction among countries. Given the growing number of cross-border e-commerce, we believe that the need for research is high because identifying these differences between countries can have a very important impact on a company's successful overseas expansion. Therefore, in this study, the impact of positive and negative review search on purchase satisfaction and the national impact were set up as a research model. In order to verify this research model, the survey was distributed to those who experienced online purchase in Korea and China, and a total of 234 copies were collected, including 125 copies in Korea, 109 copies in China, and the research model was verified using Smart-PLS structural equation analysis tools. First, positive review search has been shown to positively affect purchase satisfaction. Second, it has been shown that negative review search also has a positive effect on purchase satisfaction. Third, the impact of positive and negative review search on purchase satisfaction was different between Korea and China. While Korea is more aggressive in review search than China due to its high tendency to avoid uncertainty, China is less likely to avoid uncertainty than Korea and is more likely to rely on brand familiarity. Therefore, according to the uncertainty avoidance moderation effect the impact of positive and negative review search on purchase satisfaction was higher in Korea than in China. In this study, Shopping mall managers need to take strategic measures to maximize shopping mall performance by recognizing positive aspects of negative review search on purchase satisfaction. Companies and managers in Korea and China can establish strategies to promote product sales when companies enter the global market.

• 디자인학연구
• /
• 제16권2호
• /
• pp.161-170
• /
• 2003

20세기 말부터 급격한 발달을 통하여 웹사이트는 사용자의 대상 범주를 단일 문화권에서 벗어나 전세계의 타 문화권에 거주하는 사람들에게 이르기까지 넓혀왔다. 이는 다시 말하면 웹사이트가 태생적으로 문화와의 연관성을 가지고 있다는 것을 의미한다. 이러한 다국적 문화 수용체로서의 웹의 역할을 생각하여 볼 때, 서로 다른 문화권에서 웹사이트가 어떠한 형태로 변환되어 적용되어야 하는가를 보다 심층적으로 밝혀내고자 한다. 본 연구에서는 웹사이트의 구조가 각기 다른 문화권의 영향에 따라서 변화한다는 가설을 바탕으로 그 진위여부를 밝히는 것을 그 목적으로 하였으며, 이를 위하여 다음과 같은 실험을 진행하였다. 우선 여러 가지 문화이론을 기반으로, 현재 IT산업의 활발한 발달 모습을 보이고 있는 한국과 미국의 웹사이트가 그 문화적인 차이로 인하여 어떻게 다른 양상을 띄고 있는지를 웹사이트의 구조(Structure & Navigation)를 중심으로 분석하였다. 우선 각 국가별 20여 개의 종합쇼핑몰(I-commerce) 사이트들을 분석하기 위하여, 종합쇼핑몰 평가가이드라인 (I-commerce Site Evaluation Guideline)을 사이트 정보의 흐름과 페이지 별 분석으로 나누어 제안하고, 이를 이용하여 비교 분석한 결과를 바탕으로 문화권에 따른 국가별 선호 프로토타입(prototype)을 디자인하였으며, 이렇게 제안된 국가별 선호 프로토타입을 이용하여 원격 사용성 평가와 문화적 가치에 관한 설문을 통하여 국가별 웹사이트의 구조 선호도에 관한 가설의 진위 여부를 밝혀 내었다. 또한 이에 문화와 웹 인터페이스와의 연관성 및 국가별 사이트 네비게이션의 선호도에 대한 결과를 다양한 문화 이론을 바탕으로 해석해 내었다. 조직의 강도(