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Damascene 공정을 이용한 $Pb(Zr,Ti)O_3$ 캐패시터 제조 연구 (Fabrication of $Pb(Zr,Ti)O_3$ Thin Film Capacitors by Damascene Process)

  • 고필주;이우선
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2006년도 추계학술대회 논문집 전기물성,응용부문
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    • pp.105-106
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    • 2006
  • The ferroelectric materials of the PZT, SBT attracted much attention for application to ferroelectric random access memory (FRAM) devices. Through the last decade, the lead zirconate titanate (PZT) is one of the most attractive perovskite-type materials for the ferroelectric products due to its higher remanant polarization and the ability to withstand higher coercive fields. FRAM has been currently receiving increasing attention for one of future memory devices due to its ideal memory properties such as non-volatility, high charge storage, and faster switching operations. In this study, we first applied the damascene process using chemical mechanical polishing (CMP) to the fabricate the $Pb_{1.1}(Zr_{0.52}Ti_{0.48})O_3$ thin film capacitor in order to solve the problems of plasma etching such as low etching profile and ion charging. The structural characteristics were compared with specimens before and after CMP process of PZT films. The scanning electron microscopy (SEM) analysis was performed to compare the morphology surface characteristics of $Pb_{1.1}(Zr_{0.52}Ti_{0.48})O_3$ capacitors. The densification by the vertical sidewall patterning and charging-free ferroelectric capacitor could be obtained by the damascene process without remarkable difference of the characteristics.

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보편적서비스 지원제도 비교연구 (An International Comparison Study of Universal Service Support Mechanisms and Duplications)

  • 변재호
    • 한국통신학회논문지
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    • 제33권5B호
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    • pp.356-363
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    • 2008
  • 1983년 미국에서 보편적서비스 지원을 위한 기금제도(USF: Universal Service Fund)가 도입된 이래 각국 정부는 저렴한 요금으로 모든 국민들이 기본적인 통신서비스를 제공받을 수 있도록 보편적서비스 지원제도를 운영하고 있다. 국내에서도 2000년 이래 보편적서비스 지원제도가 도입되었고, 최근에 제도개선논의가 활발히 전개되고 있다. 본고에서는 주요국의 보편적서비스 손실금 지원제도를 비교분석하고 국내 제도 개선시 시사점을 찾아보고자 한다.

LM시장 경쟁 확대의 경제적효과 분석 (Economic Effect Analysis on the Intensification of Competition in LM Market)

  • 권수천;김병운
    • 한국통신학회논문지
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    • 제28권12B호
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    • pp.1124-1134
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    • 2003
  • 본 연구는 사업자 사전 선택제 도입으로 인해 LM 시장에 경쟁이 확대될 경우의 경제적 효과를 분석하였다. 이 논문의 분석견과에 따르면, LM 시장 경쟁확대로 인해 소비자편익 변화는 최대 276억원 감소에서부터 최대 1,448억원 증대되는 것으로 추정되었고, 사업자 수익은 최소 2,079억원 최대 4,387억원 감소되는 것으로 추정되었다. 그리고 소비자편익과 사업자 수익을 반영한 사회적후생은 최소 1,739억원에서 최대 4,071억원 감소되는 것으로 추정되었다.

개별성과측정시스템의 주요성과지표 설계 연구 (Design of KPI on Individual Performance Measurement System)

  • 홍현기;오상영
    • 한국산학기술학회논문지
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    • 제9권3호
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    • pp.815-821
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    • 2008
  • 기업의 성과는 기업이 갖고 있는 유형, 무형의 자산 운용 결과이므로 성과측정은 유형, 무형의 모든 측면에서 이루어져야 할 것이다. 그러나 측정하고자 하는 대상이 반드시 정량적 결과를 확보하고 있다는 보장이 없으므로 객관적 성과측정에 대한 신뢰를 확보하기가 쉽지는 않다. 특히 대기업과 중소기업의 조직 생성과 운용 방식이 근본적으로 상이하므로 측정 방식도 다를 수밖에 없다. 본 연구는 중소기업에 적합한 성과측정의 관점을 직무, 태도, 능력, 자격의 관점으로 제시하였으며 조직성과측정보다는 개별측정 방식을 권고하였다. 또한 시스템의 구성은 사용자와 팀장 및 BSC 담당자로 구성하여 BSC 서버를 중심으로 각 사용자의 인터넷 계정을 통하여 입력하고, 평가하고, 승인할 수 있도록 하였다.

Electrochemical Performance of High-Voltage LiMn0.8Fe0.2PO4 Cathode with Polyacrylonitrile (PAN)-Based Gel Polymer Electrolyte

  • Kwon, O. Hyeon;Kim, Jae-Kwang
    • Korean Chemical Engineering Research
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    • 제57권4호
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    • pp.547-552
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    • 2019
  • Electrochemical properties of $LiMn_{0.8}Fe_{0.2}PO_4$ cathode were investigated with gel polymer electrolyte (GPE). To access fast and efficient transport of ions and electrons during the charge/discharge process, a pure and well-crystallized $LiMn_{0.8}Fe_{0.2}PO_4$ cathode material was directly synthesized via spray-pyrolysis method. For high operation voltage, polyacrylonitrile (PAN)-based gel polymer electrolyte was then prepared by electrospinning process. The gel polymer electrolyte showed high ionic conductivity of $2.9{\times}10^{-3}S\;cm^{-1}$ at $25^{\circ}C$ and good electrochemical stability. $Li/GEP/LiMn_{0.8}Fe_{0.2}PO_4$ cell delivered a discharge capacity of $159mAh\;g^{-1}$ at 0.1 C rate that was close to the theoretical value ($170mAh\;g^{-1}$). The cell allows stable cycle performance (99.3% capacity retention) with discharge capacity of $133.5mAh\;g^{-1}$ for over 300 cycles at 1 C rate and exhibits high rate-capability. PAN-based gel polymer is a suitable electrolyte for application in $LiMn_{0.8}Fe_{0.2}PO_4/Li$ batteries with perspective in high energy density and safety.

기업 내 커뮤니케이션 형태가 업무성과에 미치는 영향에 관한 연구 (A Study on the Impact of Corporate Communication on Work Performance)

  • 이지훈;백채환
    • 산업경영시스템학회지
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    • 제42권3호
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    • pp.242-251
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    • 2019
  • The purpose of this study was to identify the relationship between complexity, tacit knowledge, know-how, perception, and perception on business performance, and to suggest management implications for corporate performance and organizational executives. Therefore, the implications of this study are as follows. First, corporate representatives and staff in charge of organization should be able to access various information and contents through various routes about the work of members of the organization, and should make efforts to freely communicate among members. Second, corporate representatives and organizational practitioners should consider using the traditional methods of communication within their work, but allowing more informed and inmates to do more off-the-job activities that can increase intimacy with each other. Third, corporate representatives and organizational practitioners should provide a situation in which they can acquire work knowledge in a variety of ways, but must devise communication methods to increase information sharing and information value among members. Fourth, corporate representatives and organizational practitioners should endeavor to provide employees with educational support, family invitation events, awards and bonuses, and compliments that will make them more interested in their work. Lastly, corporate representatives and organizational practitioners are encouraged to maintain effective communication, employee pride, etc., so that the concentration of work, achievement, quality and productivity of work, and high professionalism can be maintained. You will have to work hard.

A Study on Public Support of the Artist

  • Kim, Young Sik;Kwon, Oh Byung
    • Asia Pacific Journal of Business Review
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    • 제3권1호
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    • pp.39-55
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    • 2018
  • This study emphasizes the necessity of implementing political supports for artists and suggests several details to develop related industries. For these objectives this study analyzes the trend in related researches and overhauls the aid system. It then comes up with results about how artists are aware of the supporting system by conducting a survey of 140 artists. The result of summarize as follows. First, most of the artists have severely limited access to government-funded or private aid programs. This signals the urgency of establishing an integrated portal site since the artists aren't evenly offered the information they need. Along with this, artists should note that the main purpose of this portal site is focused on providing information related to livelihoods. Secondly, the analysis shows the lack of infrastructure for supporting artists. Both governmental and private sectors should take charge of establishing art consulting agencies which can bring efforts to improve rights and interests of many artists via a number of channels. Supporting artists also presents its necessity about solving social problems besides the one suggested by previous studies. This study has its significance by implying the actual perspectives of artists while most of the related studies are rather theoretical.

Competency Assessment Tool and Faculty Assessors for Competency-based Pharmacy Education: A Preliminary Study of Its Applications and Advantages

  • Sin, Hye Yeon
    • 한국임상약학회지
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    • 제31권4호
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    • pp.285-292
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    • 2021
  • Background: Recently, the Korean Association of Pharmacy Education has been focusing on competency-based education (CBE) and has established required areas of competencies to improve the graduation competency. However, competency-based assessment (CBA) tools for implementing CBE have not yet been developed for faculty members and students to successfully access the assessment tests. Moreover, the faculty members in charge in pharmacy schools have encountered various barriers in recruiting individuals with integrated clinical experience to act as virtual patients. Therefore, this study aimed to identify the advantages and limitations of applying CBA tool and faculty assessors in the development of CBE to ensure the reliability of this assessment. Methods: Utilizing CBA tool, the students' communication skills and styles were assessed. students and faculty assessors were surveyed to evaluate the advantages and limitations of the CBA tool. Results: 8 assessors and 96 students participated in this study. 100% (8/8) of the faculty assessors and 77.4% (65/84) of the students reported that CBA tool is valuable to assess and improve student's ability. 90.5% (76/84) of the students felt confident in applying knowledge to patient-centered care. CBA tool can be a valuable for the instructors in identifying the competency level of students but can also be associated with limitations in implementation to ensure the objectivity and reliability of the CBA. Conclusions: The CBA tool can be valuable in assessing the level of students' competency. Faculty assessors have the advantage of well-prepared themselves for patient roles, so that the time and cost required may be minimized.

A Study on Finding Emergency Conditions for Automatic Authentication Applying Big Data Processing and AI Mechanism on Medical Information Platform

  • Ham, Gyu-Sung;Kang, Mingoo;Joo, Su-Chong
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • 제16권8호
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    • pp.2772-2786
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    • 2022
  • We had researched an automatic authentication-supported medical information platform[6]. The proposed automatic authentication consists of user authentication and mobile terminal authentication, and the authentications are performed simultaneously in patients' emergency conditions. In this paper, we studied on finding emergency conditions for the automatic authentication by applying big data processing and AI mechanism on the extended medical information platform with an added edge computing system. We used big data processing, SVM, and 1-Dimension CNN of AI mechanism to find emergency conditions as authentication means considering patients' underlying diseases such as hypertension, diabetes mellitus, and arrhythmia. To quickly determine a patient's emergency conditions, we placed edge computing at the end of the platform. The medical information server derives patients' emergency conditions decision values using big data processing and AI mechanism and transmits the values to an edge node. If the edge node determines the patient emergency conditions, the edge node notifies the emergency conditions to the medical information server. The medical server transmits an emergency message to the patient's charge medical staff. The medical staff performs the automatic authentication using a mobile terminal. After the automatic authentication is completed, the medical staff can access the patient's upper medical information that was not seen in the normal condition.

호스피스완화의료 사회복지사 e-learning 교육과정 개발 (Development of e-learning Education Programs for Social Workers in Hospice and Palliative Care)

  • 심혜영;장윤정
    • Journal of Hospice and Palliative Care
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    • 제18권1호
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    • pp.9-15
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    • 2015
  • 말기암환자 관리를 위해서 전문인력 교육은 필수적이다. 정부에서는 암관리법을 통해 호스피스완화의료의 양적 확대를 기반으로 전문 인력을 양성하기 위해 제2기 암정복 10개년 계획에서 전문인력 확충계획을 발표하였다. 그간, 호스피스완화의료 전문인력 훈련을 위한 표준교육 과정과 의사/간호사 e-learning에 이어 이번 사회복지사 e-learning을 개발하여 운영하게 되었다. 호스피스완화의료 현장에서 사회복지사는 호스피스완화의료 대상자들의 심리 사회적 문제를 해결하는 중추적 역할을 수행해왔으며, 우리나라 호스피스완화의료가 정착되고 제도화되기까지 현장에서 전문가의 책임과 역할을 다해오고 있다. 하지만 그간 사회복지사 직종을 위한 체계적인 교육 과정이 없는 실정으로 사회복지 실천 지식과 기술을 충분히 습득하는 데 어려움이 있었다. 이번 호스피스완화의료 사회복지사 e-learning 과정 개발을 통해 말기암환자를 돌보는 사회복지사의 정체성과 전문성, 임상현장에서의 실천능력이 함양되고 교육 접근성이 향상될 것이며, 향후 보수교육 과정을 통한 지속적인 전문성 보장을 위한 교육제도가 제도적으로 도입되어 더욱 발전하길 기대한다.