• Title/Summary/Keyword: Classification scheme

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Citing Pattern Analysis based on Cited-by Linking Data of DOI Journals in the Field of Natural Sciences & Engineering (Cited-by Linking 데이터 기반 자연과학 및 공학 분야 학술논문 인용 패턴 분석)

  • Seo, Sun Kyung;Choi, Ho Nam;Kim, Byung-Kyu;Choi, Seon-Heui;Kim, Jeong Hwan
    • Journal of the Korean Society for information Management
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    • v.33 no.2
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    • pp.157-176
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    • 2016
  • Cited-by Linking Service is one of the CrossRef's information services that allows you to discover how your publications are being cited and to incorporate that information into your online publication platform. This study tries to investigate citation patterns in the field of both Natural Science and Engineering using all of DOI assigned articles and Cited-by Linking data which are accumulated and managed by KISTI. The investigating approach is designed to verify the theory of 1) cognitive accessibility, 2) 'perceived quality and significance' and 3) 'subject relativity'. For cognitive accessibility verification the fulltext language portion of Korean and English between "Cited DOI Source Data" and "NOT Cited DOI Source Data" was compared. For perceived quality and significance verification the availability of the "Cited DOI Source Data" and "NOT Cited DOI Source Data" from SCIE and SCOPUS was employed. For subject relativity DOI data were classified and analysed on the basis of OECD subject classification scheme. Findings are that global citability is closely related to the fulltext language of the articles and their quality and significance. And in the natural science field most of citations are from the same subject categories, while relatively more citations are from other subject categories in the engineering field.

Decision Making for the Arrangement of Spare Parts in Military Warehouse, considered on Working Time and Posture Difficulty (작업 시간과 자세위험도를 고려한 군 보급시설 수리부속 배치대안 결정)

  • Kim, Kyung-Rok;Cha, Jong-Han
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.14 no.10
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    • pp.4893-4901
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    • 2013
  • In order for a machine, especially used in the defense industry, to consistently operate during its life-time, lots of study has been done in machine design as well as machine maintenance. However, the realistic study is necessary in management and operation of a military support facility, where spare parts are stored and retrieved. In this paper, efficient arrangement of spare parts are proposed to acquire increased in efficiency and decreased in cost for operation management of the military support facility. First, spare parts is assorted by MTBF(Mean Time Between Failure) and divided in to three groups A/B/C as an alternative arrangement. Each defined alternatives will go under simulations and RULA(Rapid Upper Limb Assessment), which is posture classification scheme evaluation attributes, to find working time and posture difficulty and lastly by entropy measurement to be selected. This research proposes the efficient spare parts arrangement in military support facility to minimize working time and posture difficulty. By taking system and human engineering approach together into consideration, it will lead to show a specific value.

Markov Chain Model for Synthetic Generation by Classification of Daily Precipitation Amount into Multi-State (강수계열의 상태분류에 의한 Markov 연쇄 모의발생 모형)

  • Kim, Ju-Hwan;Park, Chan-Yeong;Kang, Kwan-Won
    • Water for future
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    • v.29 no.6
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    • pp.179-188
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    • 1996
  • The chronical sequences of daily precipitation are of great practical importance in the planning and operational processes of water resources system. A sequence of days with alternate dry day and wet day can be generated by two state Markov chain model that establish the subsequent daily state as wet or dry by previously calculated vconditional probabilities depending on the state of previous day. In this study, a synthetic generation model for obtaining the daily precipitation series is presented by classifying the precipitation amount in wet days into multi-states. To apply multi-state Markov chain model, the daily precipitation amounts for wet day are rearranged by grouping into thirty states with intervals for each state. Conditional probabilities as transition probability matrix are estimated from the computational scheme for stepping from the precipitation on one day to that on the following day. Statistical comparisons were made between the historical and synthesized chracteristics of daily precipitation series. From the results, it is shown that the proposed method is available to generate and simulate the daily precipitation series with fair accuracy and conserve the general statistical properties of historical precipitation series.

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Multicenter Survey of Intoxication Cases in Korean Emergency Departments: 2nd Annual Report, 2009 (2009년 국내 응급실 중독환자 다기관조사: 두 번째 연차보고)

  • Sung, Ae-Jin;Lee, Kyung-Woo;So, Byung-Hak;Lee, Mi-Jin;Kim, Hyun;Park, Kyung-Hye;Park, Jeong-Bae;Yeom, Seok-Ran;Oh, Seong-Beom;You, Ji-Young;Lee, Kyung-Won;Chun, Byeong-Jo;Kang, Young-Joon
    • Journal of The Korean Society of Clinical Toxicology
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    • v.10 no.1
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    • pp.22-32
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    • 2012
  • Purpose: The purpose of this study was to examine the occurrence of toxic exposure cases in Korean emergency centers using a toxic exposure surveillance system-based report form and to provide guidelines for the prevention and treatment of toxic exposures. Methods: We retrospectively reviewed the medical records of toxic exposure patients who had visited emergency centers from January 2009 to December 2009. Epidemiology data points for the toxic exposure cases included age, gender, type of exposure, number and kind of substances involved, reason and route of poison exposure, management of the patients in the emergency departments, and the clinical outcome. Results: A total of 3,501 patients from 12 emergency departments were enrolled in the study. 50.0% of the total exposure patients were male and 63.0% of the total cases were fatal. Acute intoxication occurred in 91.3% of the total patients and suicidal intent was the most common (43.3%) reason for exposure. The most common route of exposure was ingestion (75.9%). Of the total cases, pesticides were involved in 26.3%, sedatives/hypnotics/antipsychotics were involved in 22.0%, and bites and envenomations were involved in 15.7%. Conclusion: We provided a database of patients who were admitted to emergency departments after poisoning incidents. We recommend that toxicology professionals develop a classification scheme for toxicants which is adequate for Korean domestic circumstances and initiate a toxic surveillance system for all types of exposures. With support of a psychiatric surveillance system for suicidal patients and establishment of social mediation for pesticide poisoning, major reductions in poison exposures can be achieved.

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A Study on Sex Offenders Registration and Notification Act of the U.S. (미국의 성범죄자 등록 및 공개법에 관한 연구)

  • Lim, Hee;Park, Ho Jung
    • Journal of Digital Convergence
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    • v.11 no.6
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    • pp.23-42
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    • 2013
  • Congress enacted the sex offender registration and notification act in order to prevent sexual offenses and protect public safety in the U.S.. Namely, in 2006, the Jacob Wetterling Act and Megan's Law were integrated into the Adam Walsh Child Protection and Safety Act as a comprehensive sex offender supervision and management scheme. The AWA aims to eliminate loopholes and gaps formed by inconsistent state laws and statutes as well as to provide the federal standards for sex offender registration and notification. However, the AWA contains over-inclusive sex offender registration requirements and punishments. For this reason, the implementation of the AWA may cause problems for states, sex offenders, and citizens, both as taxpayers and as beneficiaries of the AWA. Therefore, the AWA that does not differentiate between violent and non-violent offenders should be reformed to allow law enforcement officials to focus on sex offenders convicted of violent and heinous crimes. That is, the AWA should not apply to sex offenders who are not dangerous, not likely to recidivate, and who committed non-violent crimes. In addition, because the AWA requires juvenile offenders to registrate on public notification forums, it may result in a greater risk to community safety and potential risk of reoffense. Accordingly, juvenile offenders convicted of non-violent sex offenses and not likely to recidivate will be provided appropriate treatments to be rehabilitated as members of community.

Are Falls of Less Than 6 Meters Safe? (6미터 이하 저고도 추락 환자의 안전성 여부)

  • Seo, Young Woo;Hong, Jung Seok;Kim, Woo Yun;Ahn, Ryeok;Hong, Eun Seok
    • Journal of Trauma and Injury
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    • v.19 no.1
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    • pp.54-58
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    • 2006
  • Purpose: The committee on trauma of the american college of surgeons, in its manual resources for optimal care of the injured patients involved in falls from less than 20 feet need not be taken to trauma centers. Because triage criteria dictate less urgency for low-level falls, this classification scheme has demerits for early detection and treatment of serious problems in the emergency room. Methods: A prospective analysis was conducted of 182 patients treated for fall-related trauma from June 2003 to March 2004. Falls were classified as group A (<3 m), group B (${\geq}3m$, <6 m), and group C (${\geq}6m$). Collected data included the patient's age, gender, site and height of fall, surface fallen upon, body area of first impact, body regions of injuries, Glasgow Coma Scale (GCS), Revised Trauma Score (RTS), and Injury Severity Score (ISS). Results: The 182 patients were classified as group A (105) 57.7%, group B (61) 33.5%, and group C (16) 8.8%. There was a weak positive correlation between the height of fall and the patients' ISS in the three groups (p<0.001). There were significant differences in GCS (p=0.017), RTS (p=0.034), and ISS (p=0.007) between group A and B. In cases that the head was the initial impact area of the body, the GCS (p<0.001) and the RTS (p=0.002) were lower, but the ISS (p<0.001) was higher than it was for other type of injuries. Hard surfaces as an impact surface type, had an influence on the GCS (p<0.001) and the ISS (p=0.025). Conclusion: To simply categorize patients who fall over 6 meters as severely injured patients doesn't have much meaning, and though patients may have fallen less than 6 meters, they should be categorized by using the dynamics (impact surface type, initial body - impact area) of their fall.

Political Ecology and Bioregionalism: New Directions for Geography and Resource-Use Management (정치생태학과 생물지역주의 - 지리학과 자원이용관리를 위한 새로운 방향 -)

  • Hipwell, William T.
    • Journal of the Korean Geographical Society
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    • v.39 no.5 s.104
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    • pp.735-754
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    • 2004
  • This paper provides an overview of political ecology, a body of theory that focuses on the links between political and economic inequality on the one hand, and environmental degradation on the other. Adopting a tripartite classification scheme that identifies three political ecology traditions -'classical', 'democratic' and 'poststructuralist'- the discussion shows the need for a move within the poststructuralist tradition away from a narrow and quasi-idealistic focus on discourse to a more robust philosophical engagement with ontological and epistemological issues grounded in Gilles Deleuze's development of Nietzschean materialism. From there. the author draws on numerous examples from Canada, and surveys the available literature on 'bioregionalism', a relatively new intellectual tradition evolved from the North American environmental social movements of the 1970s and 1980s. The so-called 'bioregional approach' stresses that administrative units need to reflect (rather than transect) eco-geographical and cultural features. Bioregionalism is described and assessed as a potential pragmatic research framework for geographers and other planners wishing to respond proactively to the call for a revamped, poststructuralist political ecology. The paper concludes that a bioregional approach to political ecology avoids the weaknesses identified by certain critics, provides scope for consideration of fundamental philosophical ideas, and as such, represents a practical development of a poststructuralist political ecology.

An Introductory Research for Development of Soil Ecological Risk Assessment in Korea (토양생태 위해성평가 제도 국내 도입방안 연구)

  • An, Youn-Joo;Kim, Shin Woong;Moon, Jongmin;Jeong, Seung-Woo;Kim, Rog-Young;Yoon, Jeong-Ki;Kim, Tae-Seung
    • Journal of Korean Society of Environmental Engineers
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    • v.39 no.6
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    • pp.348-355
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    • 2017
  • Human activities have resulted in soil pollution problems to us. Human and ecological risk assessment have been suggested as an efficient environmental management strategy for protecting human and ecosystems from soil pollution. However, Korean environmental policy is currently focused on human protection, and fundamental researches for ecology protection are required for institutional frameworks. In this study, we developed a schematic frame of Korean soil ecological risk assessment, and suggested the basic information for its application. This study suggested a soil ecological risk assessment scheme consisting of 4 steps for derivation of Predicted-No-Effect-Concentration (PNEC): 1) ecotoxicity data collection and reliability determination, 2) data standardization, 3) evaluation of data completeness for PNEC calculation, and 4) determination of ecological-risk. The reliability determination of ecotoxicity data was performed using Reliability Index (RI), and the classification of domestic species, acute/chronic, toxicity endpoint, and soil properties was used for data cataloging. The PNEC calculation methodology was determined as low-reliability, middle-reliability, and high-reliability according to their quantitative and qualitative levels of ecotoxicity data. This study would be the introductory plan research for establishment of Korean soil ecological risk assessment, and it can be a fundamental framework to further develop guidelines of Korean environmental regulation.

Survey of Sedimentary Environment and Sediment at the West-Northern Site of Chagwi-do nearby Jeju Island (제주도 차귀도 서북쪽 해역 내 퇴적 환경 및 퇴적물 조사)

  • Kim, Hansoo;Hyeon, Jong-Wu;Jin, Changzhu;Kim, Jeongrok;Cho, Il-Hyoung
    • Journal of the Korean Society for Marine Environment & Energy
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    • v.19 no.2
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    • pp.137-143
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    • 2016
  • The sedimentary environment and sediment were surveyed at the West-Northern site of Chagwi-do nearby Jeju Island for the design of the embedded suction anchor system of 10 MW-class floating wave-offshore wind hybrid power generation system. According to the classification scheme of Chough et al.[2002], the echo type of the seismic profiles using the chirp III was classified. As a results, the center and west-northern area of survey site were proved to be type I-3 where subbottom layer with thickness 5~15 m exists under the flat seafloor. On the other hands, the east-southern area were regarded to be type I-1, I-2 and III-1 where seafloor reflection is much stronger than type I-3. Also, the physical tests (unit weight, moisture content, grain size, liquid limit, specific gravity) were performed with samples taken from 8 fixed locations. It is found that the sand (SP), the sand blended with silt (SM) and the mixture of SP-SM are distributed uniformly on the survey area.

Decomposition Analysis of Energy Consumption and GHG Emissions by Industry Classification for Korea's GHG Reduction Targets (감축목표 업종 분류체계에 따른 산업부문의 에너지 소비 및 온실가스 배출 요인 분해 분석)

  • Park, Nyun-Bae;Shim, SungHee
    • Environmental and Resource Economics Review
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    • v.24 no.1
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    • pp.189-224
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    • 2015
  • To meet sectoral emission target by 2020 and prepare for the emission trading scheme from 2015, decomposition analysis of energy consumption and GHG emission is required by 18 subsectors in industry sector where emission targets are established. Log Mean Divisia Index decomposition method was used to analyze factors' effects on energy and emission in the industry sector and by 18 subsectors from 2004 to 2011. Industrial energy consumption was increased due to the production effect and energy intensity effect. However structure effect contributes to the decrease of energy consumption. In terms of emissions (including indirect emission due to electricity consumption) in the industry sector, only structure effect contributed to the emission reduction. Factors' effects by subsectors were different. Cement industry, which is included at Nonmetal shows different results from those of Nonmetal industry and machinery industry, which is a subsector of Fabricated Metal, was also similar. In this regard, we should not apply the policy implications from decomposition analysis of aggregated industry such as Nonmetal or Fabricated Metal to its subsectors uniformly and develop a differentiated policy for each subsector industry.