• Title/Summary/Keyword: Tier분석

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The Decision Criteria on the Transshipment Container Ports (컨테이너항만의 환적항 결정요인 분석)

  • Park, Byung-In;Sung, Souk-Kyung
    • Journal of Korea Port Economic Association
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    • v.24 no.1
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    • pp.41-60
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    • 2008
  • Korea has been doing a two-port system as a main port development policy and developing the port of Busan and Gwangyang as the transshipment hubs in the northeast Asia. However, the growth rate of the transshipment container volume of the Gwangyang port in 2007 was sharply dropping more than 31.4%. The reasons why reduced the growth rate of transshipment cargo were from the port development in north China and the direct callings of ships. Therefore, it is time to evaluate the transshipment hub port policy of Korea. This study would recognize the decision criteria of shipping companies as customers for the transshipment hub in the northeast Asia by the AHP methodology based on Lirn et al. (2004). It has been known the costs of shipping companies and port location as the main first tier criteria for transshipment ports, and container handling charges, closeness to the main navigation route, carriers' strategy, and nearness to the feeder ports as the important second tier factors. Finally, the domestic terminal operating companies would focus on only a few attributes including the terminal cost factor, but the international shipping companies would be considering more several factors than they do. Therefore, the transshipment port strategy should be enriched in the near future.

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Study of the Priority of Baby Boomer Policy: Emotional Psychology through Analytic Hierarchy (AHP 분석방법을 통한 감성심리 기반의 베이비부머 정책 우선순위 결정)

  • Kang, Ju-Ree;Lee, Chung-Real;Hwang, Du-Kyung
    • Science of Emotion and Sensibility
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    • v.22 no.1
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    • pp.77-88
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    • 2019
  • As the social interest of the Baby Boomer generation is increasing, this study derives implications for lifelong education policy through identification of the need and support for lifelong education among baby boomers lifelong learning, taking into account such aspects of quality of life as emotional psychology-based self-development and self-realization. To optimally explore support for lifelong learning for the baby-boomer generation, first-tier (top-level), sixth-tier (bottom-level), and five-other evaluation criteria were available. For the first layer, we examined whether potentiality or realizability was more desirable, and for the second layer, detailed criteria for realizability were set up, dividing them into financial, legal, and administrative feasibility. A study conducted by experts on the policy priority analysis of Baby Boomers showed that their support for lifelong learning places a greater priority on its feasibility (the more feasible alternative) than desire (the more desirable option). Among the six criteria, lifestyle activities had high priority, and the relative importance of the five assessment alternatives for lifetime learning activities was shown to be higher for employment skills education (0.377), civil participation education (0.181), lifestyle activities (0.200), and 'lifetime activities' (06.11). These results are meaningful: they can help shape and refine the needs of lifelong education, assess their relative importance, and prepare basic data for lifelong learning policies for baby boomers who are about to enter their old age.

Performance Analysis of Generic Bit Error Rate of M-ary Square QAM (정방형 M진 직교 진폭 변조 신호의 일반화된 BER 성능 분석)

  • Cho, Kyong-Kuk;Yoon, Dong-Weon
    • Journal of the Institute of Electronics Engineers of Korea TC
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    • v.38 no.11
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    • pp.41-48
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    • 2001
  • The exact general bit error rate (TIER) expression of M-ary square quadrature amplitude modulation (QAM) for arbitrary M has not been derived so far. In this paper, a generalized closed-form expression for the BER performance of M-ary square QAM with Gray code bit mapping is derived and analyzed in the presence of additive white Gaussian noise (AWGN) channel. The derivation is based on the consistency of the format in signal constellation o[ Gray coding and it has been derived from the results for M-16, 64, and 256.

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Failure Mechanism of Geosynthetic-Reinforced Segmental Retaining Wall in a Tiered Configuration (계단식 보강토옹벽의 파괴 메카니즘 연구)

  • Yoo, Chung Sik;Jung, Hyuk Sang;Lee, Bong Won
    • Journal of the Korean Geosynthetics Society
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    • v.3 no.4
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    • pp.13-19
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    • 2004
  • This paper presents the results of an investigation on the failure mechanism of geosynthetic-reinforced segmental retaining walls in tiered arrangement using reduced-scale model tests. In this laboratory model tests, a reduced scale model of the full-scale geosynthetic-reinforced wall which was constructed in Geotechnical Experimental Site at Sungkyunkwan University was used to perform a study on the failure mechanism. In order to a high degree of realism, the geometry of the wall and the material properties were selected applying Similitude Laws was used to perform laboratory model tests. And contrary to the previous failure tests with various surcharge pressures, the failure by the tired wall weight was observed. Primary variables considered in the model tests include the different offset distance between the tiers and the different reinforcement length in the lower tier and as a result of the parametric study, a different failure pattern was observed.

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Distributed Data Process for LHC(Large Hadron Collider) Experiment (대형 강입자 충돌가속기(LHC) 실험의 자료 분산 처리)

  • Cho Kihyeon;Han Daehee;Kwon Kihwan;Kim Jincheol B.;Son Dongchul
    • Proceedings of the Korean Information Science Society Conference
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    • 2005.11a
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    • pp.1036-1038
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    • 2005
  • 고에너지물리학의 거대강입자충돌실험(LHC)에서 생산되는 데이터양은 연간 $12\~14$PetaByte이므로 이러한 데이터를 분석하기 위해서 기존의 전산개념으로는 자료 처리하기가 불가능하다. 그러므로 새로운 개념의 대용량 자료 처리를 위한 분산 처리 시스템이 필요하며, 이와 관련하여 고에너지 물리 실험분야에서는 계층적 구조의 Tier-0, 1, 2의 지역데이터센터의 개념 및 그리드 개념을 도입하였다. LCG(LHC Computing Grid) 및 OSG(Open Science Grid)등의 그리드 팜을 이용하여 자료를 처리한다.

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An Analysis and Testing Method for Interoperability of Web Applications (웹 응용프로그램의 상호운용성 분석과 테스팅 방법)

  • Kim, Ik Su;Choi, Jong Myung
    • Journal of Korea Society of Digital Industry and Information Management
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    • v.6 no.1
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    • pp.23-31
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    • 2010
  • As the web technologies advance, most of applications have being developed as web applications. The web has advantages of high interoperability due to the web standards though the applications run on heterogenous platforms. However, as the systems are growing and have some interoperability problems, the government and the big companies require interoperability testing for new systems. In this paper, we introduce some interoperability issues for web applications and classify them into three groups according to 3-tier client/server architecture. We also propose interoperability testing process and tasks to be performed at each step in the process.

An acoustic study on the duration of the morn in Japanese (일본어 특수박의 지속시간에 관한 음향음성학적 분석)

  • Kim Seonhi
    • MALSORI
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    • no.38
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    • pp.113-124
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    • 1999
  • It is well known that Japanese prosodic structure assumes mora below the syllable tier. Syllables with V or CV structure are counted as having one morn whereas those with coda consonants /-pp, -tt, -kk, -ss, -N/ or long vowels are counted as having two morns in Japanese. This study measured the acoustic duration of these special moras ('tokusyuhaku') produced by Tokyo dialect speakers to see if they are isochronic with V or CV. It also examined the production of Korean(Seoul/Kyungsang dialect) and Chinese native speakers loaming Japanese as a second language to examine how the learners' first language influence their second language. Finally, it examined how speakers of the Akita dialect, which is blown as a syllabeme dialect in Japanese, produced them. The results showed that intra-speaker variation as well as inter-speaker variation was observed in the production by Akita dialect speakers. Production of native speakers of Chinese and Kyungsang dialect of Korean -- which have vowel length contrast in their phonological systems -- showed a similar result to Tokyo dialect speakers, which implies the influence of the learners' first language on the acquisition of the second language.

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Life & Communication - 표준전쟁, 약자의 생존 전략

  • Lee, Hyeon-U
    • TTA Journal
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    • s.141
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    • pp.114-115
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    • 2012
  • 흔히들 산업계에서는 일등만이 살아남을 수 있으니 반드시 일등이 돼야 한다고 주장한다. 그러나 항상 '이 말이 사실일까?'라고 의문을 제기해 보면 반드시 그렇지 않다는 것이 결론이다. 물론 일등을 하면 시장을 선도하면서 생기는 장점들, 이를테면 큰 시장 점유율, 높은 이익률, 시장의 방향을 결정하는 것 등 여러 가지가 있다. 그러나 이런 장점들을 누리지는 못하더라도 2등과 3등, 심지어는 훨씬 낮은 등위에서도 나름대로 선방하는 많은 기업들이 존재하는 것이 현실이다. 자동차 시장에서는 프랑스의 푸조, 카메라 시장에서는 일본의 올림푸스, 휴대폰에서는 대만의 HTC 등은 업계 1위는 아니지만 나름대로 특화된 영역에서 존재감을 보이고 있는 기업들이다. 이런 사례들은 산업분야에서 뿐만 아니고 표준이나 특허 분야에서도 찾아볼 수 있다. 따라서 치열한 표준전쟁에서 나름대로 입지를 다지고 있는 Second Tier Player 들의 생존 전략을 분석해 보는 것도 의미 있는 작업이라고 보여진다.

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An Analysis of the Conceptual Underpinnings of IS Research: The Quest for A New Ontology (경영정보학 연구의 인식론적 분석)

  • Juhn, Sung-Hyun
    • Asia pacific journal of information systems
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    • v.8 no.2
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    • pp.133-159
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    • 1998
  • This essay traverses the ontological space of IS research and identifies various misconceptions, biases, and conceptual peculiarities that inhabit the research. Three aspects of the IS ontology are examined: the conceptualization of the IT construct, demarcation of phenomena for investigation, and conceptual binding of the IT construct to other constructs. Various ontological issues are discussed including the transparency of the IT construct, the objectification of IT, and the causal primacy assigned to IT. The ontological purviews are further explored and their inadequacies are traced in the structurational explication of IS phenomena. At the end, some epistemological implications of the IS ontology are discussed and a two-tier theory structure is proposed for IS research.

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