• Title, Summary, Keyword: TPM

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A Study on the Contextual Factors Affect on the TPM Application for Loading and Unloading Equipments of Incheon Port (인천항 하역장비에 TPM 적용시 영향을 미치는 상황요인에 관한 연구)

  • Park, Sang-Ki;Lee, Chang-Ho
    • Journal of Korea Port Economic Association
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    • v.23 no.4
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    • pp.23-47
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    • 2007
  • We analyzed the questionnaire survey for the current maintenance of Incheon port's loading and unloading equipments and the possibility of TPM(Total Productive Maintenance) application. And also, We certificated Structural Equation Model with computer packages. Results of the survey indicated that the current maintenance of Incheon port's loading and unloading equipments was not good. We recognized the relationship of contextual factors about the productivity of the loading and unloading equipments The productivity of the loading and unloading equipment positively depends on maintenance management of equipments, but the organization and personnel management does not have a influence on the productivity of the loading and unloading equipment. So we suggest TPM as the future maintenance methodology of equipments. Using TPM to the loading and unloading equipments, we will try to improve the methodology of the organization and personnel management.

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The Linkage Strategies Between Productivity Metrics and Financial Accounting Metrics in TPM and PAC Activities (TPM, PAC 활동에서 생산성지표와 재무회계 지표의 연계방안 전략)

  • Choi, Sungwoon
    • Journal of the Korea Safety Management and Science
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    • v.15 no.3
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    • pp.151-161
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    • 2013
  • This paper proposes a strategic model of linkage between productivity metrics and financial accounting metrics to properly evaluate the financial effect of TPM activities and the business performance. This linkage strategy provides a connection tool for clear communication between factory-level and headquarters that the metrics proposed by this paper ultimately improves a quality of support from the management by receiving the factors required for productivity activities in the practical field. This factor includes such as equipment, raw materials and labors. Here, we propose that chain reaction models using break down structure of productivity metrics and financial metrics enhance the knowledge sharing of KPI (Key Performance Indicator) which generally tend to create oversimplified communication between management in headquarters and employees in the practical fields. The productivity metrics include OEE(Overall Equipment Effectiveness) of TPM (Total Productive Maintenance), OLE (Overall Labor Effectiveness) of PAC(Performance and Analysis and Control) activities, and OYE (Overall Yield Effectiveness) of TMM(Total Material Management) activities. The financial accounting metrics include ROE(Return on Equity), ROA(Return on Asset), and AVR(Added-Value Rate). The suggested chain reaction model selects the financial metrics as initial stage and branch down until final stage of productivity metrics. When demand exceeds supply, an ideal speed rate, the lean OEE strategy can be initially applied to reduce the gap between the demand and supply, then apply variable costing to estimate correct amount of operating profit. In addition, the paper presents a new type of model for linkage between financial accounting metrics including CAPEX(Capital Expenditure), OPEX(Operating Expenditure), EVA(Economic Added Value), DCL(Degree of Combined Leverage), and TPM productivity activities including AM(Autonomous Maintenance), PM(Preventive Maintenance), MP(Maintenance Prevention) and QM(Quality Maintenance). In order to support the evidence of proposed linkage strategy, a case analysis on 52 projects from national TPM contest from 2011 to 2012 is analyzed. The case presents the classification of CAPEX and OPEX activities from TPM, and proposes the correct implementation of financial effect for TPM projects.

An Implementation of Secure boot Using TPM in Embedded System (TPM을 활용한 임베디드 시스템 환경의 보안 부팅 구현)

  • Kim, Jin-Woo;Lee, Sang-Gil;Ko, Jae-Yong;Lee, Cheol-Hoon
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.29 no.5
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    • pp.949-960
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    • 2019
  • Due to miniaturization of electronic devices and development of IoT(Internet of Things), embedded system have been used in various field. Meanwhile, there is a potential vulnerability by the insufficient of system's security. In this paper, we implement secure boot using TPM to protect the integrity of embedded system environment. The Suggestion considers the required availability in the embedded system and detects the system's tampering at secure boot process via TPM. In addition, we have reinforced the confidentiality through AES encryption of the kernel at secure boot.

The Separation of Magnesium Isotopes by Tetraazamacrocycles Tethered to Merrifield Peptide Resin(TDM, TPM) (테트라아자 거대고리화합물(TDM, TPM)을 이용한 마그네슘동위원소의 분리에 관한 연구)

  • Jeon, Youn-Seok;Ryu, Hai-Il
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.12 no.10
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    • pp.4696-4703
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    • 2011
  • Tetraazamacrocyclic ion-exchangers, 1,4,8,11-tetraazacyclotetradecane bonded Merrifield peptide resin(TDM), 1,4,8,12-tetraazacyclopentadecane bonded Merrifield peptide resin(TPM) were prepared, and the ion-exchange capacity of these TDM and TPM were characterized. The distribution coefficients in various conc. of NH4Cl for magnesium with ion exchangers were determined by using the batch method. We found the isotope separation factors on new prepared tetraazamacrocyclic ion-exchangers bonded Merrifield peptide resin(TDM, TPM). The isotope separation of magnesium was determined by using of breakthrough method of column chromatography.

TPM 활동과 안전관리

  • Korea Industrial Health Association
    • The Safety technology
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    • no.27
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    • pp.8-15
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    • 2000
  • 생산설비의 메인티넌스(Maintenance) 활동을 통해서 철저하게 손실과낭비를 배제하는 것으로서 생산성의 향상을 꾀하는 것을 목표로 한 TPM활동 즉, 전원참가의 생산성 보전활동이 제창되어지고 있는데 최근 어려운 경제환경의 저하로 많은 화학공장이 그것에 관심을 가지고 도입하고 있다. TPM의 기본적인 이념과 구체적인 추진방법에 대해서 설명한다. TPM활동에 의해 생산성 향상의 측면에서 커다란 성과를 올릴 수 있을 뿐만 아니라 설비면과 운전면에서의 안전관리에도 효과가 있다는 것을 알 수 있다.

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Application of Immunoassay for the Detection of Gamma-Irradiated Shrimp (감마선 조사된 새우의 검지를 위한 면역분석법의 적용)

  • 이주운;육홍선;조경환;차보숙;변명우
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.30 no.4
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    • pp.600-604
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    • 2001
  • Immunoassay was used to study the detection method of irradiated shrimp. Sandwich ELISA was formatted with monoclonal antibody (Ab) (M-IgG) and polyclonal Abs (P-IgG) and polyclonal Abs (P-IgG) individually produced against brown shrimp tropomyosin (TPM) as an antigen. When M-IgG was used as a coating Ab to capture TPM, and P-IgG were used as reaction Ab against captured TPM could be detected in the range of 12.5 to 50 $\mu\textrm{g}$/mL. Detected concentrations of TPM from irradiated shrimp decreased dose-dependently, and the concentration of Ag by combination of irradiation with heating or freezing treatments also decreased. This results suggests the possibility for Sandwich ELISA, one of immunological analyses, to be applied for detecting irradiated shrimp.

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A Comparison of Typhoon Wind Models with Observed Winds (해상풍 관측자료에 근거한 태풍 해상풍 모형간의 상호비교)

  • 강시환;전기천;박광순;방경훈
    • The Sea
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    • v.7 no.3
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    • pp.100-107
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    • 2002
  • The sea-surface winds during the passage of 64 typhoons for 1979-1999 were simulated using two different typhoon wind models, ie, typhoon parametric model(TPM) and primitive vortex model(PVM). The model hindcast winds were compared with the winds observed at JMA ocean buoys(22001 and 21002) and Kyushu ocean observation tower. The analysis of ms and relative errors between hindcast and observed winds was made to find the accuracy and sensitivity of the typhoon wind prediction models. Both hindcast winds of TPM and PVM underestimate the observed typhoon winds, but PVM winds are more closer to the observations with less rms and relative errors. Relative errors of two model winds were small within 200km from typhoon center, but TPM's relative errors increase up to 70% as the radial distance from typhoon center increases beyond > 200km although PVM's relative errors remain in 20% with less sensitive to the distance from typhoon centers.

Catalytic Cracking of Triphenylmethane on Alumina Mixed with Mordenite Formed Secondary Pore (2차세공이 형성된 모더나이트와 알루미나를 혼합한 촉매상에서 Triphenylmethane의 분해반응)

  • Lee, Kyong-Hwan;Choi, Jun-Woo;Ha, Baik-Hyon
    • Applied Chemistry for Engineering
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    • v.8 no.6
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    • pp.1048-1053
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    • 1997
  • Modified mordenites by HF treatement, which have different $SiO_2/Al_2O_3$ ratio, and those mixed with $\gamma$-alumina are prepared and used for catalytic cracking of triphenylmethane(TPM) in micro-activity tester(MAT). Dealumination of mordenites decreased the acid content but developed secondary mesopores. The conversion and the selectivity of benzene over modified mordenites with the mesopores were increased. However, for the further dealuminated mordenites, they decreased due to the destruction of pore structure and low acid amount. Accordingly, the maximum cracking activity and the maximum selectivity of benzene were obtained about 17 $SiO_2/Al_2O_3$ ratio of modified mordenites. The modified mordenites mixed with alumina enhanced the cracking activity of TPM compared with the pure mordenites. It can be explained that TPM is cracked at active sites with in large pores of alumina firstly and further cracked into small molecules in zeolite pores as step mechanism of catalytic cracking.

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Two-port machine model for discrete event dynamic systems (이산현상 시스템을 위한 두개의 입력을 가진 모델)

  • 이준화;권욱현
    • 제어로봇시스템학회:학술대회논문집
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    • pp.212-217
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    • 1992
  • In this paper, a two ports machine(TPM) model for discrete event dynamic systems(DEDS) is proposed. The proposed model is a finite state machine which has two inputs and two outputs. Inputs and outputs have two components, events and informations. TPM is different from other state machine models, since TPM has symmetric input and output. This symmetry enables the block diagram representation of the DEDS with TPM blocks, summing points, multiplying points, branch points, and connections. The graphical representation of DEDS is analogous to that of control system theory. TPM has a matrix representation of its transition and information map. This matrix representation simplifies the analysis of the DEDS.

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Suspended Particulate Concentration at the Drilling Site of Underground Coal Mines in Taebaek Area (태백지역 석탄광업 굴진부서의 부유분진 농도)

  • 윤영노;김영식;이영신
    • Journal of Environmental Health Sciences
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    • v.17 no.1
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    • pp.32-38
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    • 1991
  • Airborne suspended particulate concentration in drilling sites of underground coal mines in Taebaek area was evaluated. And respirable coal dust exposure level was evaluated. Airborne suspended particulate mass include total suspended particle(TSP) and thoracic particle(TPM). TSP (by open-face filter holder) and TPM(by elutriator) concentration were determined by low volume air samplers. Personal air samplers were attached to the coal workers including drillers, coal cutters, and their assistants. Normality and log-normality of TSP, TPM, and respirable dust(RPM) concentration were tested by Kolmogorov-Smirnov one-sample test. Differences of means of TSP, TPM, and RPM concentration were tested by paired t-test. Relation between TSP, TPM, and RPM with pairs were tested by regression test and Pearson's correlation.

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