• Title/Summary/Keyword: Quality Adaptation

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Strength characteristics of cemented sand of Nak-dong river (낙동강유역 시멘트혼합토의 강도특성)

  • Kim, Young-Su;Jeong, Woo-Seob;Kim, Ki-Young;Lee, Sang-Woong
    • Proceedings of the Korean Geotechical Society Conference
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    • 2006.03a
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    • pp.808-817
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    • 2006
  • There were huge damages of human beings and their properties in many areas of the basin of the Nak-Dong river by the unusual weather and the localized downpour recently. In this research against disasters, we want to know the special quality of strength of the cemented sand that is mixed with cement and poor-graded sand which is the materials of riverbed in the basin of the Nak-Dong river as levee's material. For that, we want to provide the fundamental data which need in the examination of adaptation of levee's material, design and analysis by investigating compressive strength by curing period and cement ratio, elastic modulus and stress by transformation from compaction test, CBR test, unconfined compression test, triaxial compression test as changing ratio of sand and cement from 2% to 8% at two points in the basin of the Nak-Dong river.

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Development and It's Real-sea Test of an Underwater Acoustic Communication System (수중무선통신 시스템 개발 및 성능시험)

  • Lim, Yong-Kon;Park, Jong-Won;Kim, Seung-Geun;Choi, Young-Chol;Kim, Sea-Moon;Byun, Sung-Hoon
    • Proceedings of the IEEK Conference
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    • 2008.06a
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    • pp.89-90
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    • 2008
  • We present an implementation and it's real-sea test of an underwater acoustic communication system, which allows the system to reduce complexity and increase robustness in time variant underwater environments. For easy adaptation to complicated and time-varying environments of the ocean, all-digital transmitter and receiver systems were implemented. For frame synchronization the CAZAC sequence was used, and QPSK modulation/demodulation method with carrier frequency of 25kHz and a bandwidth of 5kHz were applied to generate 10kbps transmission rate including overhead. To improve transmission quality, we used several techniques and algorithms such as adaptive beamforming, adaptive equalizer, and convolution coding/Viterbi decoding. For the verification of the system performance, measurement of BER has been done in a very shallow water with depth of 20m at JangMok, Geoje. During the experiment, image data were successfully transmitted up to about 9.6km.

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The Concept Analysis of Motherhood (간호이론개발을 위한 개념 분석 : 어머니됨)

  • Kim, Young-Hee
    • Women's Health Nursing
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    • v.4 no.2
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    • pp.245-257
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    • 1998
  • The characteristics of health behavior related pregnancy and childbirth have reflected on the cultural belief and value in the society. The efforts for women's health promotion through the current illumination of the traditional health care are the prompting assignment to be in nursing. The process of motherhood already progress before the motherhood actually. The functional state as the expectant mother can be the important predicting factor of the postpartum state, the quality of a married life. Motherhood was analyzed by Walker and Avant's method to clarify the concept 'to be a mother' using the various concepts like Koreans' Taekyo, transition to motherhood, maternal identity, maternal role attainment, maternal fetal attachment, and maternal fetal interaction. Upon the concept analysis, naturalness, responsibility, attachment, readiness, controllability were identified as the defining characteristics of motherhood. The antecedents of motherhood were consist of maternal affection, positive self esteem, pregnancy acceptance, fetus recognition and the consequences of motherhood were consist of positive maternal identity, maternal fetal attachment, confidence about the maternal role, the healthy mother and the healthy baby. The empirical referents of motherhood were consists of recognition of motherhood, expectation about motherhood, fetal recognition with ultrasonography and fetal movement, experience of unification between mother and fetus, expression of affection to the fetus, concern about fetal health, concern and practice about Taekyo, adaptation behavior about physical change and discomfort due to pregnancy. Therefore it is necessary to develop the instruction program of motherhood including the defining attributes identified in this study.

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Block-wise Adaptive Predictive PLS using Block-wise Data Extraction (데이터 추출 과정을 적용한 Block-wise Adaptive Predictive PLS)

  • Kim Sung-Young;Chung Chang-Bock;Choi Soo-Hyoung;Lee Bom-Sock
    • Journal of Institute of Control, Robotics and Systems
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    • v.12 no.7
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    • pp.706-712
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    • 2006
  • Recursive Partial Least Squares(RPLS) method has been used for processing the on-line available multivariate chemical process data and modeling adaptive prediction model for process changes. However, RPLS method is unstable in PLS model updating because RPLS method updates PLS model by merging past PLS model and new data. In this study, Adaptive Predictive Partial Least Squres(APPLS) method is suggested for more sensitive adaptation to process changes. By expanding APPLS method, block-wise Adaptive Predictive Partial Least Squares(block-wise APPLS) method is suggested for a lager scale data of chemical processes. APPLS method has been applied to predict the reactor properties and the product quality of a direct esterification reactor for polyethylene terephthalate(PTT), and block-wise APPLS method has been applied to predict the cetane number using NIR Diesel Spectra data. APPLS and block-wise APPLS methods show better prediction and updating performance than RPLS method.

A Study on the Formal Generation Characteristics in the Digital Design Process (디지털 디자인프로세스에 나타난 형태생성방식의 특성에 관한 연구)

  • Lee, Su-Yong;Lee, Sang-Joon
    • Journal of The Korean Digital Architecture Interior Association
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    • v.6 no.2
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    • pp.9-16
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    • 2006
  • The research want to know about form creation method's special quality that found in digital construction design process that using digital media, and they comparison analysis that who positive using digital media, Frank O. Gehry, Peter Eisenman, Greg Lynn, UN studio's work. First, In digital design process using digital media is make full use to design unfolding step and application way can change by architect's recognition difference of using digital media and each architect's design general idea unfolding process, and it means form creation process can change. Second, In digital design process a building form doesn't design adaptation to construction system, they directly design the third dimension form. So, they deduction a new form that unification and integration. Third, the architect that appear's in digital design process's part is existing, data from position of the master which it selects the coding selects the outcome goods which appears in computer operation with coordinator role of the originality and construction sense which it is visible.

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Resilience and Mental Health among Migrant Workers in Busan, Korea (이주노동자의 레질리언스와 정신건강)

  • Im, Hyuk;Lee, Hyo Young
    • Korean Journal of Health Education and Promotion
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    • v.29 no.5
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    • pp.13-26
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    • 2012
  • Objectives: The purpose of this study was to identify the relationship between resilience of migrant workers and their mental health for improving their quality of life and adaptation in Korean society. Methods: Data were collected from March 21 to May 7, 2011. The participants included 488 migrant workers who lived in Busan Metropolitan City or Gyoungnam province. Results: First, heavy working burdens and lack of rests, low wages, poor living environments, low economic status & deficiency of living necessities, hard physical labors, and conflicts with Korean workers had negative effects on mental health. Second, high perceived stress caused by usual 'living difficulties', high 'cutural shock', high feeling of 'social isolation', and high discomfort from 'lack of Korean language proficiency' gave negative effects on migrant worker's mental health. Third, the most important factor on the mental health was the 'cultural shock' among stressors. Even though many stressors existed among migrant workers, these negative effects on mental health were lessened by their high resilience level. Conclusions: This study highlights the importance of migrant workers in Busan, Korea. To improve their mental health, social support including financial supports and educational programs that foster resilience needed.

A Conceptual Analysis of Cancer Survivorship (암 생존력에 대한 개념분석)

  • Byun, Hye-Sun;Park, Hyun-Joo;Kim, Ji-Youn
    • Asian Oncology Nursing
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    • v.12 no.3
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    • pp.237-245
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    • 2012
  • Purpose: The purpose of this study was to identify attributes of the concept of cancer survivorship. Methods: Walker & Avant's concept analysis framework (2005) was used to review the medical & nursing text books, medical and nursing research articles related to cancer survivorship and published from 1985 to 2011. Results: There were nine aspects of the concept of cancer survivorship: A process, liminality, uncertainty, life-changing experience, complexity, unique experience, duality of positive and negative aspects, partnership, and need for support. Antecedents of cancer survivorship were cancer diagnosis and perception as a cancer survivor. Empirical referents of cancer survivorship were survival rate, quality of life, adaptation to the survivorship experience, and health-related hardiness, social support, spirituality, and health behavior. The consequences of cancer survivorship were effects on the physical, psychosocial, spiritual and socio-economic well-being of the patients. Conclusion: This concept analysis of cancer survivorship is expected to contribute to promotion of survivorship care in the clinical field by removing conceptual ambiguity and confirming the true meaning of survivorship care.

A Research Review of Village Chicken Production Constraints and Opportunities in Zimbabwe

  • Mapiye, C.;Mwale, M.;Mupangwa, J.F.;Chimonyo, M.;Foti, R.;Mutenje, M.J.
    • Asian-Australasian Journal of Animal Sciences
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    • v.21 no.11
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    • pp.1680-1688
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    • 2008
  • Development of village chicken production can be a sustainable way of helping to meet the welfare needs of rural populations and raise their living standards. There is a dearth of information on research conducted to characterize, understand and develop the village chicken production systems in Zimbabwe. This review focuses on constraints, opportunities and research needs for the improvement of village chicken productivity in Zimbabwe. Village chicken production in Zimbabwe is extensive and dominated by indigenous chickens that exhibit remarkable adaptation to local environments. The multitude functions of village chickens, which include the provision of high quality protein meat and eggs, cash through sales and socio-cultural roles, are discussed in detail. Human gender aspects in village chicken production are highlighted. The factors that hamper village chicken productivity are reviewed together with opportunities and research needs. The major constraints include shortage of feed, poor health and housing management. Any improvements in these constraints may lead to sustainable increase in village chicken productivity.

Carotenoid Accumulation and Their Antioxidant Activity in Spent Laying Hens as Affected by Polarity and Feeding Period

  • Lee, C.-Y.;Lee, B.-D.;Na, J.-C.;An, G.
    • Asian-Australasian Journal of Animal Sciences
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    • v.23 no.6
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    • pp.799-805
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    • 2010
  • Since the consumption of spent laying hens as roasted skewered meat increases, the effects of various carotenoids on pigmentation and antioxidant activity were tested with 62-wk-old 250 ISA brown laying hens to improve the quality of chicken meat. In a 6-wk feeding trial, 4 carotenoids with different polarity (${\beta}$-8-apo-carotenoic acid ethyl ester (ACAEE)>astaxanthin>canthaxanthin>${\beta}$-carotene) at 100 mg carotenoid/kg feed were used. The more polar the carotenoids, the higher were the levels in blood. After 5-wk adaptation, the concentrations of astaxanthin, canthaxanthin, and ACAEE in blood were -4 ${\mu}g/ml$. Canthaxanthin decreased significantly (p<0.05) the level of total blood cholesterol. Decreases in blood triglyceride by all carotenoids used were significant. ACAEE and astaxanthin tended to increase skin yellowness of thigh, breast, and wing proportionally to feeding period. In the case of polar carotenoids (ACAEE and astaxanthin), the longer the period of feeding, the higher the accumulation in skin was observed. Only astaxanthin was effective against the production of lipid peroxides in skin. Conclusively, out of the commercially available carotenoids we tested, astaxanthin is recommended for pigmentation of skin and inhibition of lipid oxidation.

Resourcefulness : A Concept Analysis (자원동원성 (Resourcefulness)의 개념 분석)

  • 서순림;박영임;김성재;김인자;구미옥;양영희;이은남;박송자;최은옥
    • Journal of Korean Academy of Nursing
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    • v.27 no.2
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    • pp.329-340
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    • 1997
  • Resourcefulness was analyzed by Walker and Avant's method to make a theoretical framework for nursing. Also, the appropriate Korean terminology was identified.“Resourcefulness”means the ability to use internal and external resources to eliminate or to control stress. '자원동원성' is chosen to be the most appropriate term to reflect the concept of resourcefulness. Upon the concept analysis, availability, controllability, confidence, and self-instruction were identified as the defining characteristics of resourcefulness. Contrary to other work, "availability" means the ability to use the social resources as well as the internal cognitive-behavioral resources. “Controllability” means the ability to delay or control immediate gratification of one's needs or to divert one's own mood in order to solve problem. "Confidence" is the self-efficacy belief in one's control ability. "Self-instruction" is the cognitive ability to instruct oneself positively. Resourcefulness is learned by active experience, vicarious experience, and formal or informal instruction, and it is cued in the presence of a stressful situation or a need for change. As a result of the use of resourcefulness, the target behavior performed immediately and ultimately improve the quality of life or adaptation. Therefore, it is necessary to develop the instrument including the defining attributes identified in this study. Also, it is necessary to simultaneously analyze the related concepts of self-efficacy, self-control, and self-regulation for appropriate use.

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