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A Study on Classification of Attachment on the Strange Situation (낮선상황의 애착유형분류에 관한 일 연구)

  • 박응임;박성연
    • Journal of the Korean Home Economics Association
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    • v.32 no.3
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    • pp.159-170
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    • 1994
  • A study on classification of attachment on the Strange Situation was conducted. 55 infants(27 boys and 28 girls) whose attachment to mothers were assessed in the Strange Situation when they were 14 to 20 moths old The analysis was made according to Ainsworth's classificatory system as well as Main & Solomon's. The results were summarized as follows: 43 infants were identified as secure attachment (Group B) 9 infants as insecure-avoidant(Group A) and 1 infant as insecure-resistant (Group C) There were 2 infants identified as insecure-disorganized/disoriented(Group D) In the sub-classification Group B infants were classified into B1(14 infants) B2(11 infants) and B3(18 infants) Group A infants were classified into 8 A1s and 1 A2 The Group C infant was identified as C1 and B4 were found. Finally because of the majority of infants as Group B, the association between sub-classifications and infan's sex and month was examined. the result indicated no signicant relations between them.

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On-line Identification of a Fuzzy System

  • Kim, euntai;Lee, Heejin;Park, Minkee;Park, Mignon
    • Proceedings of the Korean Institute of Intelligent Systems Conference
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    • 1998.06a
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    • pp.685-690
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    • 1998
  • This paper presents an explanation regarding on-line identification of a fuzzy system. The fuzzy system to be identified is assumed to be in the type of singletion consequent parts and be represented by a linear combination of fuzzy basis function (FBF's). For on-line identification, squared-cosine (SCOS) fuzzy basis function is introduced to reduce the number of parameters to be identified and make the system consistent and differentiable. Then the parameters of the fuzzy system are identified on-line by the gradient search method. Finally, a computer simulation is performed to illustrate the validity of the suggested algorithms.

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Proteomic Approach Analysis of Mammary Membrane Proteins Expression Profiles in Holstein Cows

  • Yang, Yong-xin;Cao, Sui-zhong;Zhang, Yong;Zhao, Xing-xu
    • Asian-Australasian Journal of Animal Sciences
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    • v.22 no.6
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    • pp.885-892
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    • 2009
  • To investigate host defense mechanisms for protecting the mammary gland from mastitis infection, the membrane fraction of mammary tissues from Holstein cows was purified by differential velocity centrifugation, and then the sodium dodecyl sulfate-polyacrylamid gel electrophoresis (SDS-PAGE) separated proteins were identified by ion trap mass spectrometer equipped with a Surveyor high performance liquid chromatography (HPLC) system. A total of 183 proteins were identified. Bioinformatics software was applied to analyse physicochemical characteristics of the identified proteins and to predict biochemical function. These data may provide valuable information to investigate the mechanisms of mammary gland milk secretion and infectious disease, and enable a clear identification of proteins and potential protein targets for therapies.

GPS Output Signal Processing considering both Correlated/White Measurement Noise for Optimal Navigation Filtering

  • Kim, Do-Myung;Suk, Jinyoung
    • International Journal of Aeronautical and Space Sciences
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    • v.13 no.4
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    • pp.499-506
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    • 2012
  • In this paper, a dynamic modeling for the velocity and position information of a single frequency stand-alone GPS(Global Positioning System) receiver is described. In static condition, the position error dynamic model is identified as a first/second order transfer function, and the velocity error model is identified as a band-limited Gaussian white noise via non-parametric method of a PSD(Power Spectrum Density) estimation in continuous time domain. A Kalman filter is proposed considering both correlated/white measurements noise based on identified GPS error model. The performance of the proposed Kalman filtering method is verified via numerical simulation.

Identification of $\alpha$,$\beta$-Duvatriene 1,3-diol derivaties in thermolyzates of Duvatriene from tobacco leaf by GC/MS (Duvatrienediol의 열변성화합물의 분리 및 확인)

  • Rhee, Moon-Soo;Lee, Un-Cheoul;Kwag, Jae-Jin
    • Journal of the Korean Society of Tobacco Science
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    • v.9 no.2
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    • pp.77-85
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    • 1987
  • $\alpha$, $\beta$-4.8.13-Duvatriene-1, 3-diols was identified as the major component of diterponoid extracted from Nicotiana Tabacum L. The isolated duvatriendiol was thermolyged at 300'c under a stream of nitrogen. The approximately 20 compounds were separated from the thermolyzates and the 9 compounds of them were identified with GC/MS. However, the thermolyzates identified in this study differed in distribution from the products under the condition of a different temperature or photooxidation.

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A Proteomic Approach to Study msDNA Function in Escherichia coli

  • Jeong, Mi-Ae;Lim, Dongbin
    • Journal of Microbiology
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    • v.42 no.3
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    • pp.200-204
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    • 2004
  • Retron is a prokaryotic genetic element that produces multicopy single-stranded DNA covalently linked to RNA (msDNA) by a reverse transcriptase. It was found that cells producing a large amount of msDNA, rather than those that did not, showed a higher rate of mutation. In order to understand the molecular mechanism connecting msDNA production to the high mutation rate the protein patterns were compared by two dimensional gel electrophoresis. Ten proteins were found to be differentially expressed at levels more than three fold greater in cells with than without msDNA, nine of which were identified by MALDI TOF MS. Eight of the nine identified proteins were repressed in msDNA-producing cells and, surprisingly, most were proteins functioning in the dissimilation of various carbon sources. One protein was induced four fold greater in the msDNA producing cells and was identified as a 30S ribosomal protein S2 involved in the regulation of translation. The molecular mechanism underlying the elevated mutation in msDNA-producing cell still remains elusive.

Control Performance Improvement for Linear Compressors (리니어 컴프레서의 제어성능 향상)

  • Kim, Gyu-Sik
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.56 no.3
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    • pp.594-599
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    • 2007
  • A dosed-loop sensorless stroke control system for a linear compressor has been designed. The motor parameters are identified as a function of the piston position and the motor current. They are stored in ROM table and used later for the accurate estimation of piston position. Also it was attempted to approximate the identified motor parameters to the 2nd-order surface functions. The 2nd-order surface functions are divided into 2 or 4 sub-sections for more precise identification of motor parameters. Some experimental results are given in order to show the feasibility of the proposed control schemes for linear compressors.

Isolation and Identification of Polynuclear Aromatic Hydrocarbons in Seoul Atmosphere (서울시 대기중 다핵방향족 탄화수소류의 분리 및 동정)

  • Jang, Jae-Youn;Kim, Bag-Kwang;Chung, Yong;Cho, Seong-Joon
    • Journal of Korean Society for Atmospheric Environment
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    • v.4 no.2
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    • pp.47-56
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    • 1988
  • Polynuclear aromatic hydrocarbons $(PAH_s)$ in Seoul atmosphere were isolated and identified. PAH fraction was isolated from airborne suspended particulates by solvent extraction, fractionation and thin layer chromatography. PAHs were identified by GC-MS, capillary GC, retention index and so on. About 70 major $PAH_S$ were seperated in capillary GC and 41 $PAH_s$ of those were identified.

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Morphological Description of Reticulitermes speratus kyushuenesis Morimoto (Isoptera : Rhinotermitidae) in Southern Part of Korea (남부지방에 분포하는 흰개미인 Reticulitermes speratus kyushuenesis Morimoto (Isoptera : Rhinotermitidae)의 형태적 기재)

  • 박현철;배태웅
    • The Korean Journal of Soil Zoology
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    • v.2 no.1
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    • pp.59-64
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    • 1997
  • A study was carried out to investigate the distribution of termites at the southern part of Korea between 1995 and 1996. During the survey, termite samples were collected from the randomly selected areas. Most of thern were collected from the decayed woods in dead trees (usually in pine trees), but some were also collected from woodern walls, floors in houses, or in matured bed logs at the mushroom cultivating areas. Damage by this termite species were also observed by Kim and Hwang (1996) who investigated the insect pests of mushroom in the southern part of Korea. To control the termites, it is urgent to identify them and to conduct ecological study of termites. Thus, we firstly identified termites which were collected from the sampling areas including houses and mushrooms cultivating fields. All termite samples were identified as Reticulitermes speratus. However, there were several morphological differences among them according to the collected areas, and the samples were reexamined, identified and divided into subspecies as R. speratus kyushuensis.

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A Concept Analysis of Gratitude in Patients Based on Rodgers' Evolutionary Method

  • Jung, Miran;Han, Kuemsun
    • International Journal of Contents
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    • v.13 no.2
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    • pp.44-49
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    • 2017
  • This article presents a concept analysis of the gratitude experience of diseased patients. The Rodgers' Evolutionary Method was used for conducting the analysis. A search of CINAHL, MEDLINE, PsycARTICLES, and Springer databases was conducted using "gratitude or appreciation or thanks" and "patient or illness" as a key word, 22 final articles were selected. Three critical attributes of gratitude in patients were identified: positive emotions, acceptance of the current status, and a driving force to plant the will of life. In addition, two antecedents of gratitude in patients were identified: interactions with people or the environment, and the perception of a favorable stimuli or help. Two consequences of gratitude in patients were identified: an increased compliance in implemented treatment, and an enhancement of trust relationship. The concept analysis describes diseased patients' gratitude. This paper will become the basis for future clinical research related to diseased patients' gratitude.