• Title/Summary/Keyword: PMS

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HIL 기반 LNGC PMS 시뮬레이터의 성능 검증 (HIL based LNGC PMS Simulator's Performance Verification)

  • 이광국;박재문
    • 한국정보통신학회:학술대회논문집
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    • 한국정보통신학회 2016년도 추계학술대회
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    • pp.219-220
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    • 2016
  • 전력 관리 시스템인 PMS는 선박 통합 제어 시스템에서 중요한 역할을 한다. 본 연구에서는 액화 천연가스선의 PMS를 검증하기 위해서 실시간 HIL 시뮬레이션을 구현한다. 시뮬레이터는 터빈 발전기 디젤발전기, 차단기, 주요 3상 부하로 구성되고, 이들 모델은 MATLAB/Simulink로 구현한다. 더불어 FPGA 기반 제어 콘솔과 메인 스위치보드를 구축하여 선박에 탑재 되어 있는 LNGC PMS 제어 환경을 모사 한다. PMS 기능 검증을 위해 LNGC 내 주요 전력소모원 대비 두 가지 전력 분배 모드를 테스트 케이스로 수행한다. 그 결과 본 연구에서 제안한 시스템은 PMS 시뮬레이터로써 시운전 테스트뿐만 아니라 오류 주입 검증용으로 사용될 것이다.

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Monitoring mRNA Expression Patterns in Macrophages in Response to Two Different Strains of Probiotics

  • Sang-Pil Choi;Si-Won Park;Seok-Jin Kang;Seul Ki Lim;Min-Sung Kwon;Hak-Jong Choi; Taehoon Chun
    • 한국축산식품학회지
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    • 제43권4호
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    • pp.703-711
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    • 2023
  • As an initial study to elucidate the molecular mechanism of how probiotics modulate macrophage activity, we monitored mRNA expression patterns in peritoneal macrophages (PMs) treated with two different strains of probiotics. After treatment with either Weissella cibaria WIKIM28 or Latilactobacillus sakei WIKIM50, total RNAs from PMs were isolated and subjected into gene chip analyses. As controls, mRNAs from vehicle (phosphate-buffered saline, PBS)-treated PMs were also subjected to gene chip analysis. Compared to vehicle (PBS)-treated PMs, WIKIM28-treated and WIKIM50-treated PMs exhibited a total of 889 and 432 differentially expressed genes with expression differences of at least 4 folds, respectively. Compared to WIKIM28-treated PMs, WIKIM50-treated PMs showed 25 up-regulated genes and 21 down-regulated genes with expression differences of more than 2 folds. Interestingly, mRNA transcripts of M2 macrophage polarization marker such as anxa1, mafb, and sepp1 were increased in WIKIM50-treated PMs comparing to those in WIKIM28-treated PMs. Reversely, mRNA transcripts of M1 macrophage polarization marker such as hdac9, ptgs2, and socs3 were decreased in WIKIM50-treated PMs comparing to those in WIKIM28-treated PMs. In agreement with these observations, mRNA expression levels of tumor necrosis factor-α and interleukin-1α were significantly reduced in WIKIM50-treated macrophages compared to those in WIKIM28-treated macrophages. These results may indicate that probiotics can be classified as two different types depending on their ability to convert macrophages into M1 or M2 polarization.

포장도로 유지관리 시스템 구축을 위한 프로그램 개발 (The Program Development for Building Pavement Maintenance and Rehabilitation System)

  • 조병완;태기호;한재호;최혜미;권병철
    • 한국콘크리트학회:학술대회논문집
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    • 한국콘크리트학회 2002년도 봄 학술발표회 논문집
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    • pp.1009-1014
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    • 2002
  • In this study, developed economical and scientific Pavement Management System(PMS) that can produce suitable maintenance method through judgement and analysis of pavement condition exactly, to overcome past unscientific pavement management limitations. First, on the basis of data of the inside and outside of the country on PMS, composed logical algorithm such as pavement condition investigation and analysis, detailed naked eye investigation, whole system estimation etc., and it verified that this algorithm is suitable system through the inside and outside of the country PMS research examples and results of detailed naked eye investigation. Also, developed easily usable PMS program and PMS_GIS program with such logical algorithm.

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Design Rules of Hybrid Stepping Machine for Free Piston Engine

  • Jeong, Sung-In
    • Journal of Electrical Engineering and Technology
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    • 제12권3호
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    • pp.1219-1226
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    • 2017
  • This paper presents the hybrid stepping machine for linear oscillating generators. The focus of the work is the suggestion of the improved model through the comparison of proposed models ; new flux concentrating PMs mover of the hybrid stepping generator is proposed based on the symmetrical and non-symmetrical stator cores of the surface mounted PMs mover, and non-slanted PMs and slanted PMs of the flux concentrating PMs mover. It is achieved using equivalent magnetic circuit considering leakage elements. Finally, this study suggests new hybrid stepping structure of linear oscillating generator.

PMS를 호소하는 여성의 소화기능과 연관된 비위변증설문(脾胃辨證設問)과의 상관관계 분석 (Women with PMS, Digestive Function Associated with an Appeal 脾胃辨證說問 Correlation Analysis)

  • 장희재;김남훈;황덕상;이진무;이창훈;조정훈;장준복;이경섭
    • 대한한방부인과학회지
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    • 제24권2호
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    • pp.104-111
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    • 2011
  • Objectives: The paper of 2001, China Medicine junguiyak stomach sickness9) proposed by the stomach is associated with digestive function, using dialectical gisulpyo PMS group to assess the patient's stomach function was to evaluate the diagnostic features. Methods: October 1, 2010 to November 15, 2010 women of childbearing age against a total of 25 people have responded to the survey was a random survey, 23 patients except two who were against the PMS 10 and 13 who were classified non-PMS group. Results: 1. Age group and non-PMS PMS theses, menstrual period is there was no statistically significant difference between the history of both the pill and had no information available on careers. 2. When comparing the total score PMS score was higher than in non-PMS group. This is a non-PMS PMS patients than in patients stomach functions normally fall. 3. Digestive function of the type of group, less PMS GanGi-woolche, Ganwool-Bihu, Bihu-Damsub, Hanyul-Chakchab significant difference in the items were found. 4. Digestive function of the type of group, less PMS GanGi-woolche the most significant was the type of apologetics. Conclusions: GanGi-woolche type was the most significant mental stress and autonomic tone of the PMS group, the higher the patient was likely to be included. Previously associated with HRV in the GanGi-woolche in a study evaluating the autonomic nervous system can be said to have relevance.

초·중등 여교사의 월경전증후군 증상과 대처가 삶의 질에 미치는 영향 (Effects of Premenstrual Syndrome Symptoms and Coping on Quality of Life in Elementary and Secondary Schools Female Teachers)

  • 정소윤;안숙희
    • 동서간호학연구지
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    • 제24권1호
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    • pp.52-62
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    • 2018
  • Purpose: This study aimed to examine the effects of premenstrual syndrome (PMS) symptoms and coping strategies on the health-related quality of life in elementary and secondary schools female teachers. Methods: 140 female teachers in C province were recruited using a correlational study design. The measurements used were the PMS symptoms scale, the PMS coping scale and the Korean version of health-related quality of life scale. Results: The higher quality of life were predicted by the lower PMS symptoms, the higher PMS coping, the better the quality of sleep, the lower the job and life stress, and the lower work disturbance due to the PMS symptoms. These variables explained 53% of the total variance. Conclusions: For better female teachers' health-related quality of life, health care programs for managing the PMS symptoms need to be developed by considering those identified variables. For health education practice, school health teachers need to distribute health educational materials for female teachers and to provide small-group health counselling services for PMS self care.

Inactivation of Escherichia coli and MS2 coliphage by Cu(II)-activated peroxomonosulfate in natural water

  • Kim, Hyung-Eun;Lee, Hye-Jin;Kim, Min Sik;Choi, Joon-Young;Lee, Changha
    • Membrane and Water Treatment
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    • 제10권3호
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    • pp.231-237
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    • 2019
  • Peroxymonosulfate (PMS) in combination with Cu(II) was examined to inactivate E. coli and MS2 coliphage in natural water. The combined system (i.e., the Cu(II)/PMS system) caused a synergistic inactivation of E. coli and MS2, in contrast with either Cu(II) or PMS alone. Increasing the concentration of PMS enhanced the inactivation of E. coli and MS2, but after a certain point, it decreased the efficacy of the microbial inactivation. In the Cu(II)/PMS system, adding reactive oxidant scavengers marginally affected the E. coli inactivation, but the inhibitory effects of copper-chelating agents were significant. Fluorescent assays indicated that the Cu(II)/PMS system greatly increased the level of reactive oxidants inside the E. coli cells. The sequential addition of Cu(II) and PMS inactivated more E. coli than did adding the two simultaneously; in particular, the inactivation efficacy was much higher when Cu(II) was added first. The observations from the study collectively showed that the microbial inactivation by the Cu(II)/PMS system could be attributed to the toxicity of Cu(I) as well as the intracellular oxidative stress induced by Cu(III) or radical species.

제지슬러지와 돈분을 이용한 퇴비화 과정중 이화학적 특성 변화 (Changes of Physico-chemical Properties of paper Mill Sludge amended with Pig Manure in Composting Process)

  • 민경훈;장기운;유영석
    • 유기물자원화
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    • 제8권4호
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    • pp.86-92
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    • 2000
  • 본 연구는 퇴비화에 있어서 제지 슬러지(PMS)와 돈분(PM)의 최적혼합비율을 결정하기 위해 실시하였다. 제지슬러지는 풍부한 탄소와 적은 질소를 함유하고 있기 때문에 탄소의 공급원으로서 사용되었다. 또한 건조된 제지슬러지는 혼합물의 수분을 조절할 목적으로 첨가되었다. 처리구는 PMS-100(PM 0%+PMS 80%+DPMS 20%), PMS-85(15+65+20), PMS-70(30+50+20), PMS-55(45+35+20) 4개로 구성되었다. 퇴비화은 호기성조건에서 정체식(규모 $1.25m^3$)으로 실행되었으며, 일일 15분씩 공기를 공급하였고 퇴비화초기에는 주마다 뒤집기를 실시하였다. 퇴비의 부숙도를 평가하기 위해 온도, pH, C/N율과 색도의 이화학성 변화를 조사하였다. 이화학성을 분석한 결과 효과적인 퇴비화을 위한 수분과 C/N율의 최적조건은 각각 25~30과 55~60%이었다. 제지슬러지에 돈분이

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LNGC용 Power Management System 시뮬레이터 모델링 및 특성분석 (Power Management System Simulator Modeling and Characteristics Analysis for Electric Propulsion Ship)

  • 김영민;전경원;정상용
    • 전기학회논문지
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    • 제64권6호
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    • pp.878-884
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    • 2015
  • In this paper, Power Management System(PMS) simulator for Liquid Nature Gas Carrier(LNGC) is developed. Major components of power system for LNGC, such as generator, diesel engine and governor, transformer, circuit breaker, and 3 phase loads models are built based on MATLAB/SIMULINK. With these designed major parts, PMS simulator modeling is carried out. Based on MATLAB/Graphical User Interface, PMS simulator control for LNGC, and Human Machine Interface for monitoring is designed. PMS simulator for LNGC carries out simulation according to sequence of characteristics analysis. By comparing results of predicted simulation for each sequence to that of characteristics analysis, the reliability of PMS simulator for LNGC will be verified.

IS프로젝트에서 PMS 품질이 성과에 미치는 영향에 대한 연구 (A Study on the Impact of the PMS Quality on Performance in Information Systems Project)

  • 정천수;안현철
    • 지식경영연구
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    • 제13권3호
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    • pp.79-103
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    • 2012
  • Recently because the IS development project is large scale and complicated, the necessity of tools that can manage effectively smooth communications and the harmonized project between the interested parties is exposed. According to this fact, many companies are investing enough to the PMS (Project Management System) for the sake of the systematic management of the IS development project, and also this PMS is emerging as one of the indispensable tools for the successful IS development project by casting off from a auxiliary means for the past project management. However, as had been expected, whether the introduction of the PMS is possible to facilitate communications within a project team, and a main motivation that can derive individual performance and organizational performance that participated in the IS development project is induced or not are not verified still empirically and apparently. With respect to this, a survey was conducted to examine how PMS quality affected user satisfaction, communication, individual performance and project performance. The effects of the data gathered were verified by structural equation model analysis.

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