• 제목/요약/키워드: Material characterization

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GLP 시험에서의 시험물질 특성파악 (Characterization of Test Substance in the GLP)

  • 이은정;송경석;유일재
    • Toxicological Research
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    • 제23권2호
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    • pp.173-177
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    • 2007

  • The GLP contains specific language concerning characterization of the test, control and reference substances used in toxicity studies. This paper will describe and discuss what types of documents are required to support test/reference substance characterization under GLP system. The purpose of this article is to present an overview of data needed in the characterization package that will adequately define the substance. Most sponsors use a certificate of analysis (COA) to communicate the test sub-stance characterization status information to the contracting research organizations. The COA should provide the test $material^{\circ}{\phi}s$ characterization results, substance storage requirements, expiration dates, verification of the collection of the retention sample, archival location of the data to support the characterization and GLP compliance status of the characterization.

  • https://doi.org/10.5487/TR.2007.23.2.173 인용 PDF KSCI

부분등가회로모델을 이용한 매립형 인덕터의 특성 연구 (Characterization of Embedded Inductors using Partial Element Equivalent Circuit Models)

  • 신동욱;오창훈;이규복;김종규;윤일구
    • 한국전기전자재료학회논문지
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    • 제16권5호
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    • pp.404-408
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    • 2003

  • The characterization for several multi-layer embedded inductors with different structures was investigated. The optimized equivalent circuit models for several test structures were obtained from HSPICE. Building blocks are modeled using Partial element equivalent circuit method. The mean and the standard deviation of model parameters were extracted and predictive modeling was performed on different test structure. From this study, the characteristic of multi-layer inductors can be predicted.

  • https://doi.org/10.4313/JKEM.2003.16.5.404 인용 PDF KSCI

마이크로파 소자 응용을 위한 고온초전도 $YBa_2Cu_3O_{7-\delta}$ 에피택셜 박막의 제조 및 특성분석 (Preparation and Characterization of Epitaxial $YBa_2Cu_3O_{7-\delta}$ Thin Films for Fabrication of High-$T_{c}$ Superconducting Microwave Devices)

  • 강광용;한석길;김제하;이상렬
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 1995년도 춘계학술대회 논문집
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    • pp.26-30
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    • 1995

  • We describe the preparation and characterization of epitaxial thin films made with high temperature superconductor, $YBa_2Cu_3O_{7-\delta}$. The influence of processing parameters for YBCO thin films on MgO substrates in-situ grown by the pulsed laser deposition, including parameters of a laser beam energy, oxygen pressure, substrate temperature, target-substrate dis-tance is discussed. The characteristics of YBCO thin films were analyzed by using XRD, R-T measurement, AFM, crosssectional TEM, and RBS. For examples of microwave device applications, The fabrication and characterization of the microstrip lowpass filter and bandpass filter are also presented.

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22.9[kV] XLPE 케이블의 절연성능평가 (The Evaluation of Dielectric Capability in 22.9[kV] XLPE Insulated Cables)

  • 김충배;장동환;임장섭;한재홍;김상준;김태성
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 1998년도 추계학술대회 논문집
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    • pp.81-84
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    • 1998

  • New diagnostic techniques have been tried on the applications of chemical, physical and micro-structural methods because there was a limit to diagnose degradation in Korean Underground Residential Distribution (URD) power cables with the conventional electrical methods. In this study, non-electrical properties were carried out as such. Characterization of interface layer was analyzed by X-ray, characterization of insulator by water tree, degree of crosslinking, shrinkage as well as ${\mu}$ -FTIR, characterization of semiconductive layer by volume resistivity. Electrical properties were also performed by leakage current.

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