• Title/Summary/Keyword: PMC

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A Study on the Open Access Model for Scholarly Communication (정보공유적 모델 기반의 학술커뮤니케이션에 대한 연구: 저작권을 중심으로)

  • 정경희
    • Journal of the Korean Society for information Management
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    • v.19 no.4
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    • pp.384-399
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    • 2002
  • The ownership of scholarly communication, i.e. copyright is very important to solve the problem of access to many academic journals in network environment. The purpose of this article is to give a conceptual model for the open access based scholarly communication. The main point of this model is for the authors of research paper to retain copyright on their works and to license the work whenever it is reproduced or redistributed for non-profit use with academic purpose. And library have to construct full text journal databases under this open access license.

A Study on Application of Systems Engineering Technical Process to FEED in Plant construction Industry - focused on a case of Environmental Plant (플랜트 FEED 설계를 위한 시스템엔지니어링 기술프로세스 적용방안 연구 - 환경플랜트 사례를 중심으로)

  • Ki, Wan Wook;Kim, Jun Pil;Hong, Dae Geun;Suh, Suk-Hwan
    • Journal of the Korean Society of Systems Engineering
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    • v.9 no.2
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    • pp.37-53
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    • 2013
  • With rapid growth of the world plant market, an increasing attention is paid on the plant engineering. Up to present time, Korean plant engineering technology has been concerned with the down stream part of the plant engineering, so called EPC, considered as a lower value chain compared with the up stream, composed of FEED(Front End Engineering Design) and PMC(Project Management Consultancy). In other words, a key issue for Korean plant industry is how to catch up the FEED technology, currently occupied by the advanced countries. In this paper, we propose an SE(Systems Engineering) approach, conventionally applied for aerospace and defense industry, to the FEED for plant engineering. Specifically, we proposed a new SE process composed of: 1) SPA matrix for reverse systems engineering, and 2) PPA matrix for forward systems engineering. To illustrate the proposed method, a case study for an environmental plant is performed.

A Study on the Framework of International Cooperation Business in HRD KOREA (국제협력사업의 체계적인 추진방향에 관한 연구)

  • Son, Bae-Won;Park, Jae-Hyun
    • Journal of the Korea Safety Management & Science
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    • v.12 no.1
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    • pp.189-198
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    • 2010
  • This study is aimed at proposing the framework of international cooperation business in HRD KOREA. To achieve this goal I collected all of data that were used in process of international cooperation business in HRD KOREA and interviewed some people to get information from the people concerned. After that I analyzed data involved in using SWOT technique and proposed the framework of international cooperation business in HRD KOREA. The conclusions are as these. First, alliances must be vitalized between businesses besides between organizations. For example 'Developing of voluntary comeback program for foreigner' and 'Establishment of HRD KOREA Center' can be proposed as action plans for this strategy. Second, glocalization must be pushed ahead. For example 'Business career monitoring system for PMC' can be proposed as action plan. Third, building of preemptive base must be done. For example 'Standing of international HRD forum' can be proposed as action plan. Fourth, reinforcement of organizational competency must be done. For example 'The program for internationalization' can be proposed as action plan. Fifth, SBU(Strategic Business Unit) must be pushed ahead. For example 'Customer diversification portfolio' can be proposed as action plan.

A Study on Automatic Target Recognition Using SAR Imagery (SAR 영상을 이용한 자동 표적 식별 기법에 대한 연구)

  • Park, Jong-Il;Kim, Kyung-Tae
    • The Journal of Korean Institute of Electromagnetic Engineering and Science
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    • v.22 no.11
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    • pp.1063-1069
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    • 2011
  • NCTR(Non-Cooperative Target Recognition) and ATR(Automatic Target Recognition) are methodologies to identify military targets using radar, optical, and infrared images. Among them, a strategy to recognize ground targets using synthetic aperature radar(SAR) images is called SAR ATR. In general, SAR ATR consists of three sequential stages: detection, discrimination and classification. In this paper, a modification of the polar mapping classifier(PMC) to identify inverse SAR(ISAR) images has been made in order to apply it to SAR ATR. In addition, a preprocessing scheme can mitigate the effect from the clutter, and information on the shadow is employed to improve the classification accuracy.

An Investigation of Higher Order Modes in Widthwise in Parallel Plate Waveguide (평행평판 도파관에서 너비 방향으로 발생하는 고차 모드에 관한 연구)

  • Cho, Gyu-Yeong;Jo, Hyun-Dong;Park, Wee-Sang
    • The Journal of Korean Institute of Electromagnetic Engineering and Science
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    • v.23 no.6
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    • pp.731-739
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    • 2012
  • Transverse electric modes in parallel plate waveguide of which cut-off frequency is much lower than that of $TE_1$ and $TM_1$ mode generally known as the lowest higher order mode are investigated. Electric and magnetic field components of the modes are evaluated with the assumption that boundaries at both sides are perfect magnetic conductor. The existence of these modes are verified by simulation and experimental measurement of parallel plate waveguide cavity. Changed characteristics from the fact that the boundaries are imperfect are studied.

Clinicopathologic and Diagnostic Significance of p53 Protein Expression in Papillary Thyroid Carcinoma

  • Shin, Mi Kyung;Kim, Jeong Won
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.5
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    • pp.2341-2344
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    • 2014
  • Background: p53 protein expression has been detected immunohistochemically in papillary thyroid carcinoma(PTC). We investigated the relations between its expression and clinicopathologic features and its significance as a diagnostic marker. Materials and Methods: We compared and evaluated 93 patients in whom thyroidectomy with lymph node dissection had been performed to treat PTC for clinicopathologic significance and 102 patients with 23 papillary thyroid overt carcinomas (POC), 57 papillary thyroid microcarcinomas(PMC), 5 follicular adenomas (FA), 5 Hashimoto's thyroiditis (HT) and 12 nodular hyperplasias (NH) for significance as a diagnostic marker. Expression of p53 protein was evaluated immunohistochemically in sections of paraffinembedded tissue. Results: Statistical analysis showed significantly different expression of p53 in PTC versus other benign thyroid lesions (BTL).The diagnostic sensitivity and specificity were 85.0% and 72.7%, respectively. Overexpression of p53 protein was observed in 44 of the 93 PTC cases (47.3%), but no significant correlation between p53 protein overexpression and clinicopathologic features (age, size, multiplicity, lymph node metastasis, extrathyroidal extension and vascular invasion) was noted. Conclusions: p53 is valuable to distinguish PTC from other BTL, but there is no correlation between p53 protein overexpression and clinicopathologic features.

Nucleotide and protein researches on anaerobic fungi during four decades

  • Chang, Jongsoo;Park, Hyunjin
    • Journal of Animal Science and Technology
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    • v.62 no.2
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    • pp.121-140
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    • 2020
  • Anaerobic fungi habitat in the gastrointestinal tract of foregut fermenters or hindgut fermenters and degrade fibrous plant biomass through the hydrolysis reactions with a wide variety of cellulolytic enzymes and physical penetration through fiber matrix with their rhizoids. To date, seventeen genera have been described in family Neocallimasticaceae, class Neocallimastigomycetes, phylum Neocallimastigomycota and one genus has been described in phylum Neocallimastigomycota. In National Center for Biotechnology Information (NCBI) database (DB), 23,830 nucleotide sequences and 59,512 protein sequences have been deposited and most of them were originated from Piromyces, Neocallimastix and Anaeromyces. Most of protein sequences (44,025) were acquired with PacBio next generation sequencing system. The whole genome sequences of Anaeromyces robustus, Neocallimastix californiae, Pecoramyces ruminantium, Piromyces finnis and Piromyces sp. E2 are available in Joint Genome Institute (JGI) database. According to the results of protein prediction, average Isoelectric points (pIs) were ranged from 5.88 (Anaeromyces) to 6.57 (Piromyces) and average molecular weights were ranged from 38.7 kDa (Orpinomyces) to 56.6 kDa (Piromyces). In Carbohydrate-Active enZYmes (CAZY) database, glycoside hydrolases (36), carbohydrate binding module (11), carbohydrate esterases (8), glycosyltransferase (5) and polysaccharide lyases (3) from anaerobic fungi were registered. During four decades, 1,031 research articles about anaerobic fungi were published and 444 and 719 articles were available in PubMed (PM) and PubMed Central (PMC) DB.

Effects of Alloying Elements on the Tensile Strength and Electrical Conductivity of Cu-Fe-P Based Alloys (Cu-Fe-P계 합금의 강도 및 전기전도도에 미치는 첨가 원소의 영향)

  • Kim, Dae-Hyun;Lee, Kwang-Hak
    • Korean Journal of Materials Research
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    • v.20 no.2
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    • pp.65-71
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    • 2010
  • In this study, the effect of Sn and Mg on microstructure and mechanical properties of Cu-Fe-P alloy were investigated by using scanning electron microscope, transmission electron microscope, tensile strength, electrical conductivity, thermal softening, size and distribution of the precipitation phases in order to satisfy characteristic for lead frame material. It was observed that Cu-0.14wt%Fe-0.03wt%P-0.05wt%Si-0.1wt%Zn with Sn and Mg indicates increasing tensile strength compare with PMC90 since Sn restrained the growth of the Fe-P precipitation phase on the matrix. However, the electrical conductivity was decreased by adding addition of Sn and Mg because Sn was dispersed on the matrix and restrained the growth of the Fe-P precipitation. The size of 100 nm $Mg_3P_2$ precipitation phase was observed having lattice parameter $a:12.01{\AA}$ such that [111] zone axis. According to the results of the study, the tensile strength and the electrical conductivity satisfied the requirements of lead frame; so, there is the possibility of application as a substitution material for lead frame of Cu alloy.

Study on Price Sensitivity at University Cafeterias - Focus on Seoul and Chungcheong Area - (대학구내식당에 대한 대학생의 가격민감도에 관한 연구 - 서울권과 충청권을 중심으로 -)

  • Lee, Eun-Yong;Park, Kyu-Eun;Jeon, Yu-Jung
    • Journal of the East Asian Society of Dietary Life
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    • v.26 no.2
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    • pp.117-124
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    • 2016
  • As the number of cafeterias at universities has increased, studies on student perception of price sensitivity at cafeterias have gained increased attention. Therefore, the study investigated the relationship between students and university cafeterias according to price sensitivity measurement (PSM). According to the analysis, the indifference price (IDP) was 3,444.06 Korean Won while the subsequent cumulative distribution percentage was approximately 17.68%. The optimal pricing point (OPP) was 3,233.73 Korean Won and the stress price (IDP-OPP) was 210.33 Korean Won. The point of marginal expensiveness (PME) was 4,602.24 Koean Won and the point of marginal cheapness (PMC) was 2,036.29 Korean Won. Therefore, the range of acceptable prices (RAP) was established as 2,565.95 Korean Won. In addition, the study examined differences between price sensitivity measurement (PSM) for the respondent subgroups. Hence, the results will provide a practical background for development of business plans for university cafeterias.

Review on Clinical Studies of Traditional Korean Medicine Treatment for Atrophic Vaginitis (위축성 질염의 한약 치료 임상 연구에 관한 체계적 문헌 고찰)

  • Nam, Eun-Young
    • The Journal of Korean Obstetrics and Gynecology
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    • v.32 no.3
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    • pp.245-262
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    • 2019
  • Objectives: The purpose of this study is to review clinical studies of traditional Korean medicine treatment (herb medicine) on vaginal atrophy. Methods: Key words "Vaginal atrophy", "Vulvovaginal atrophy", "Vaginal dryness", "Atrophic vaginitis", "Herb medicine", "Acupuncture", "Moxibustion", "Catgut embedding" were searched on 11 database systems (PMC, CENTRAL, EMBASE, CNKI, KTKP, KISS, NDSL, OASIS, DBpia, KMBASE, RISS) on May 31th 2019. In all searches, limits were set for MeSH (human) and language (English, Chinese or Korean). Results: 18 controlled clinical trials were collected in accordance with the selection and exclusion criteria. The types of intervention were herbal medicine, and types of herbal medicine were decoction, cream, suppository, oil, ect. The study results and methods of intervention were analyzed. Conclusions: Among the 18 trials, 5 studies showed that herbal medicine with hormone or antiprotozoal therapy was more effective than hormone or antiprotozoal therapy alone. And 2 studies showed that herbal medicine treatment was more effective than oil treatment of topical use. There was no abnormal vaginal bleeding, breast swelling and pain in TCM group.