• Title/Summary/Keyword: 중심지수

Search Result 1,391, Processing Time 0.028 seconds

Effect of Supply Chain Risk on Port Container Throughput: Focusing on the Case of Busan Port (공급망 리스크가 항만 컨테이너 물동량에 미치는 영향에 관한 연구: 부산항 사례를 중심으로)

  • Kim, Sung-Ki;Kim, Chan-Ho
    • Journal of Korea Port Economic Association
    • /
    • v.39 no.2
    • /
    • pp.25-39
    • /
    • 2023
  • As the scope of supply chains expands globally, unpredictable risks continue to arise. The occurrence of these supply chain risks affects port cargo throughput and hinders port operation. In order to examine the impact of global supply chain risks on port container throughput, this study conducted an empirical analysis on the impact of variables such as the Global Supply Chain Pressure Index (GSCPI), Shanghai Container Freight Index (SCFI), Industrial Production Index, and Retail Sales Index on port traffic using the vector autoregressive(VAR) model. As a result of the analysis, the rise in GSCPI causes a short-term decrease in the throughput of Busan Port, but after a certain point, it acts as a factor increasing the throughput and affects it in the form of a wave. In addition, the industrial production index and the retail sales index were found to have no statistically significant effect on the throughput of Busan Port. In the case of SCFI, the effect was almost similar to that of GSCPI. The results of this study reveal how risks affect port cargo throughput in a situation where supply chain risks are gradually increasing, providing many implications for establishing port operation policies for future supply chain risks.

An Analysis of Nationality Diversity by Journal Editors and Authors Using Diversity Index: Focusing on International Journals of Library and Information Science (다양성 지수를 활용한 학술지 편집위원과 저자의 국적 다양성 분석 - 문헌정보학 분야 국제학술지를 중심으로 -)

  • Jane Cho
    • Journal of the Korean Society for Library and Information Science
    • /
    • v.58 no.2
    • /
    • pp.81-100
    • /
    • 2024
  • This study analyzed the national diversity of journal editors and authors, focusing on international journals in library and information science, and quantified it through Simpson's Diversity Index. In addition, LIS journals were clustered according to diversity indicators and their characteristics were analyzed, and it was also confirmed whether nationality diversity of editorial members could induce nationality diversity of authors. As a result of the analysis, first, the diversity index of the editors of the LIS (Library & Information Science) international journal was found to be 0.64, which is less than the diversity of the authors, which is 0.76. It was confirmed that as the diversity of nationalities among editorial committee members increases, it is possible to attract authors of various nationalities (r = .79). Second, journals in the IS (Information Science) field showed a high index before or after 0.8 for both editorial members and author contributing countries, but those in the LS (Library Science) field showed relatively low scores, especially among the editorial members, with a very low index of 0.48. Third, the United States has the highest share of both authors and editors, and in particular, it has been confirmed that the LS field has an overwhelming share of 53.39% of editors. On the other hand, in Asian countries, including Korea, the ratio of contributions as editors compared to contributions as authors was found to be lower than in the United States and European countries.

Evaluation of MODIS NDVI for Drought Monitoring : Focused on Comparison of Drought Index (가뭄모니터링을 위한 MODIS NDVI의 활용성 평가: 가뭄지수와의 비교를 중심으로)

  • Park, Jung-Sool;Kim, Kyung-Tak
    • Spatial Information Research
    • /
    • v.17 no.1
    • /
    • pp.117-129
    • /
    • 2009
  • South Korea has been undergoing spring drought periodically and diverse researches using vegetation index have been carried out to monitor spring droughts. The strength of the vegetation index-based drought monitoring is that the monitoring method enables efficient spatio-temporal grasp of changes in drought events. According to the development of low resolution satellite images such as MODIS, which are characterized by outstanding temporal resolution, the use of the method is expected to increase. Drought analysis using vegetation index considered only meteorological factor as a cause that affects vitality of vegetation. But many indirect and direct factors affect vegetation stress, So many uncertainties are involved in such method of analysis. To secure objectivity of drought analysis that uses vegetation index it is therefore necessary to compare the method with most representative drought analysis tools that are used for drought management. In this study, PDSI and SPI which a meteorological drought index that quantifies drought and that is used as a basic index for drought monitoring and MODIS NDVI are compared to propose correlation among them and to show usefulness of drought assessment that uses vegetation index. This study shows changing patterns of NDVI and SPI 6-month are similar and correlation between NDVI and SPI was highest in inland vegetation cover.

  • PDF

Analysis of Revised Helicopter Crashworthiness Criteria (개정 헬리콥터 내추락성 설계기준 분석)

  • Hwang, Jungsun;Lee, Sangmok
    • Journal of the Korean Society for Aeronautical & Space Sciences
    • /
    • v.42 no.5
    • /
    • pp.415-422
    • /
    • 2014
  • There has been a lot of discussion to revise military helicopter crashworthiness design criteria. In this paper, newly revised crashworthiness criteria is analyzed centering around the Crashworthiness Index which is the core content of revised criteria. The Crashworthiness Index(CI) was conceived as an adequate method to quantify the crashworthiness capabilities of a rotorcraft design. The index can rate how well a new or derivative design complies with design requirements. The CI rating is made up of seven assessment areas. While the Basic Airframe Crashworthiness(BAC) area tends to be an objective calculation, other areas of the CI tend to be more subjective. Therefore, in this paper, detail CI calculation process for the BAC area is analyzed to inspect the effectiveness of revised criteria.

An Analysis on the Korea Market Competitiveness of Japan Materials Industry -Focus on the Compound and Chemical Products- (일본 소재산업의 대 한국시장 경쟁력 분석 -화합물 및 화학제품을 중심으로-)

  • Kim, Ji-Yong
    • International Commerce and Information Review
    • /
    • v.16 no.4
    • /
    • pp.439-455
    • /
    • 2014
  • Korea-Japan trade has been trade deficit for a long time and therefore this matter must be a settled urgently for continuous economic growth of Korea. For reasons mentioned above, this study pays attention to Japan materials industry which has induced trade deficit in the Korea-Japan trade and this study analyzed competitiveness of Japan materials industry in the Korea market. This study special regard will be paid to the Compound and Chemical Products in Japan materials industry. For attaining the purpose of study, we collected related statistical data and Market Share Index, Trade Specialization Index and Market Comparative Advantage Index used in study methodology From this analysis, we found that most of Japan material products have competitiveness in Korea market and chemical products used in photography & photo sensitized materials, paint & printing ink products particularly have very strong competitiveness in Korea Market.

  • PDF

A Development of Risk Performance Index for Mega-project Performance Measurement in view of the integrated Cost/Schedule/Risk (비용/공정/위험 통합 관점에서 메가 프로젝트 성과측정을 위한 위험성과지수 개발)

  • Kim, Seon-Gyoo;Park, Kyoo-Young;Yu, Young-Jeong
    • Korean Journal of Construction Engineering and Management
    • /
    • v.10 no.1
    • /
    • pp.69-77
    • /
    • 2009
  • Recently, a research of the urban regeneration has been performed very actively. This is one of the efforts to resolve various social and economic problems coming from the existing deteriorated building and facilities by new urban development or redevelopment. However, an urban regeneration has a characteristic to be unable to ensure the project performance due to the exposed numerous risks coming from the various and complex stake-holders, and its mega sizes. This paper proposes the method of risk performance index in order to improve an efficiency of performance measurement expanding to the risk view point from the existing integrated cost/schedule performance measurement. A risk performance index is compatible with the existing EVMS, and can make the performance measurement in 3 dimensions of the integrated cost/schedule/risk with 18 sub-indexes and variables.

Effect Analysis of Korea Economic about the Growth Slowdown of China Economic under FTA (FTA 시대에 중국 경제의 성장둔화가 한국경제에 미치는 영향분석)

  • Kim, Kyoung-Hee;Yoo, Seung-Gyun
    • International Commerce and Information Review
    • /
    • v.16 no.5
    • /
    • pp.225-248
    • /
    • 2014
  • Korea and China signed an FTA at November 10, 2014. The entry of China - the factory of the World - can be more active and easier. But Recently, China's economic growth is slowdown, and it began to emerge as a voice of concern. Therefore I analyze Chnia's economic slowdown is the impact on Korea's economy in this study. This study presented current trends and future prospects on China's economic situation. The changes of China's economic growth are the reduction of economic growth rate, falling proportion of processing trade, and the competition relationship of two countries. So they will be analyzed on this study. And this study presents ways that Korea economy reacts for China's economic growth slowdown. Trade statistics system of Korea International trade Association(KITA) is leveraged for this analysis. For competition relationship analysis, I analyze to use Contribution to the Trade Balance, Trade Specialization Index, Revealed Comparative Advantage of Country.

  • PDF

Health Information Monitoring System using Context Sensors based Band (상황센서 기반의 밴드를 이용한 건강정보 모니터링 시스템)

  • Chung, Kyung-Yong;Lee, Young-Ho;Ryu, Joong-Kyung
    • The Journal of the Korea Contents Association
    • /
    • v.11 no.8
    • /
    • pp.14-22
    • /
    • 2011
  • It is important for the strategy of service to provide the health information in the environment that the healthcare has been changed focusing on the preventive medicine. Recently, the various applications of u-healthcare have been presented by researchers. In this paper, we proposed the health information monitoring system using the context sensors based band. By wearing the proposed hand, the health status is gathered and vital signals are transmitted to the connected UMPC. It can be easily monitored according to the user locations in real time. To provide the health index according to the temperature, the air conditioning, the illumination, the humidity, and the ultraviolet rays, we use the various XML links extracted from RSS of the Korea Meteorological Administration. The health information is analyzed in terms of factors, such as, the asthma index, the stroke index, the skin disease index, the pulmonary disease index, the pollen concentration index, and the city high temperature index. Ultimately, this paper suggests empirical application to verify the adequacy and the validity with the proposed system. Accordingly, the satisfaction and the quality of services will be improved the healthcare.

Analyzing the Effects of Korea's Grant Aid to Africa : Focusing on HDI (Human Development Index) (한국의 아프리카 무상원조의 효과분석 : Human Development Index에의 영향을 중심으로)

  • Lee, Doowon;Kim, Gyuhyun
    • International Area Studies Review
    • /
    • v.14 no.3
    • /
    • pp.178-204
    • /
    • 2010
  • This study analyzes the effects Korea's grant aid to 53 African countries, focusing on its impacts on improving HDI (Human Development Index) of each recipient country, through panel data analysis. According to the OLS panel analysis, Korea's grant aid on information and communication (IC) sector showed positive and significant correlation with HDI, but aid on administrative system and environment showed negative correlation with HDI. Also, according to the fixed effect panel analysis, aid on IC sector showed positive correlation with HDI, but aid on administrative system showed negative correlation with HDI. In particular, effects of aid was different across the region. In North African region, aid on health improved HDI. However, in Sub-Saharan African region, aid on IC was more effective in improving HDI. This results imply that grand aid on Africa needs to be coordinated strategically across regions and sectors. This paper is meaningful in providing ways that can be mutually beneficial both to donor and recipient countries of grant aid.

Competitiveness Index of Regional Economy and the Characteristics of Regional Growth in Knowledge Economy: The Case of SCI(State Competitiveness Index) (지식기반경제에 있어 지역경제의 경쟁력 지표와 지역성장의 특성: 미국의 SCI사례를 중심으로)

  • Na, Ju Mong
    • International Area Studies Review
    • /
    • v.15 no.3
    • /
    • pp.285-306
    • /
    • 2011
  • This paper analyzed the effects the regional competitiveness index on the characteristics of the regional growth. This study divides the regions in the US based on the static and dynamic standard of income for the characteristics of the regional growth. The results of the analysis are as follows. First some regions such as Alaska, Connecticut, Maryland, Massachusetts, Virginia, Washington and Wyoming have higher levels of SCI and both the rate of growth and per capita income than the national average. These are considered prosperous regions based on their high level of SCI. Second, in regards to the relation between the income level and regional competitiveness index for the regional growth, the variables such as human resource, science technology, business incubation, openness, safety and environmental policy are significant. Third, infrastructure, human resource, science technology and openness are the significant variables concerning the relation between the rate of income growth and regional competitiveness index for the regional growth.