• Title/Summary/Keyword: Domestic study

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A Study on the Present Status of the Quality Evaluation Capability of Domestic Paper Industry -A Case Study for Fine Paper Industry (국내 제지산업의 품질평가 실태연구-백상지업체를 중심으로-)

  • 이학래;윤혜정;김태영;조중연
    • Journal of Korea Technical Association of The Pulp and Paper Industry
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    • v.32 no.1
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    • pp.94-100
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    • 2000
  • This study was carried out to understand the present status of the quality evaluation capability of domestic fine paper industry. Six light weight coated papers and one wood containing printing and writing paper with similar basis weights were produced by seven paper companies and their properties were evaluated at four different testing laboratories of domestic fine paper mills. Paper properties including basis weight , thickness , tensile, tear , brightness , opacity, etc were examined , and the repeat ability and reproducibility of the test results were analyzed. Results showed that repeatability of the measurements within the laboratory was satisfactory . Reproducibility of the measurements between laboratories, however, was not satisfactory. This showed that strict implementation of the standard testing methods and periodic calibration of testing equipments should be made to improve quality evaluation capability of domestic fine paper industry.

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Study on Carbon Pick-up in molten iron (I);Effect of Crystallization heat treatment of Carbon-bearing materials on Carbon Pick-up in molten iron (용철(熔鐵)에서의 가탄(加炭)에 관(關)한 연구(硏究)(1);가탄(加炭)에 미치는 탄소재(炭素材)의 결정화열처리(結晶化熱處理)의 영향)

  • Cho, Won-Il;Lee, Jong-Nam
    • Journal of Korea Foundry Society
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    • v.3 no.3
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    • pp.159-166
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    • 1983
  • In order to develope domestic carburizers, the experiment was carried out by applying crystallization heat treatment to domestic anthracites and also to foreign products to compare with domestic anthracites.The present work was mainly concerned with the effect of their degree of crystallization of carbon-bearing materials on carbon pick-up in molten iron.Those effects were evaluated by the measurement of density, chemical composition, specific electric resistivity, and X-ray intensity of carbon-bearing materials. Experimental results thus obtained were summurized as follows. 1. The degree of crystallization of domestic anthracites and foreign products was increased with increasing heat treatment temperature. 2. The more degree of crystallization, the shorter the dissolving time of domestic anthracites in molten iron was obtained, while that of foreign products was remained constant. 3. As the degree of crystallization of domestic anthracites and foreign products was increased, the carbon content as well as carbon recovery in molten iron was increased.

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An Analysis of the Interrelationships between the Domestic and Foreign Stock Market Variations over the Depressed Market Period (주가의 전반적 하락기 국내외 증시 변동간의 연관관계 분석)

  • 김태호;유경아;김진희
    • Journal of the Korean Operations Research and Management Science Society
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    • v.28 no.1
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    • pp.11-23
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    • 2003
  • This study Investigates the short and long-run dynamic relationships between the domestic and U.S. stock markets for the period of declining stock prices. It Is well known that the domestic stock market variations are largely caused by the U.S. stock market movements. Multivariate causal tty test Is utilized to examine the lead-lag relationships among four stock prices of KOSPI and KOSDAQ In the domestic part and DOWJONES and NASDAQ In the U.S. part. When the stock prices tend to decrease In the long run, It Is found that both KOSPI and KOSDAQ have closer relations with NASDAQ than DOWJONES. When both of domestic stock markets are severely fluctuate, bidirectional causal relationships appear to exist between NASDAQ and each of KOSPI and KOSDAQ. On the other hand. when the domestic stock markets are relatively stable, unidirectional causality Is found to exist between NASDAQ and each of KOSPI and KOSDAQ. which is explicitly validated by the analysis of variance decomposition.

Adolescent Children's Domestic Violence Exposure & Psycho-social Maladjustment - Focusing on Middle School Student Children's Wife Abuse Witnessing and Child Abuse Victim - (청소년기 자녀의 가정폭력 노출과 심리사회적 부적응 -중학생 자녀의 아내학대 목격과 자녀학대 피해를 중심으로-)

  • 김정란
    • Journal of Families and Better Life
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    • v.21 no.5
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    • pp.171-180
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    • 2003
  • The purpose of this study is to examine how adolescent children's exposure experience of domestic violence influences their psycho-social maladjustment. The SPSS 10.0 for Windows was used to analyze data obtained through 589 adolescents who attend middle school in Gwangju area. Major findings are as follows: 1. Domestic violence exposure in adolescent children was considerably serious; 84.4% child abuse by parents, 66.0% witness of father-to-mother abuse. 2. Child abuse and wife abuse had close relation in occurrence and severity. 3. Internalizing problems, externalizing problems, and social competence of adolescents were different by the victim of child abuse, the witness of wife abuse, and the style of domestic violence exposure. 4. Domestic violence exposure had a positive impact on the adolescent children's psycho-social maladjustment.

국내외 제품담배의 tar, nicotine 및 vapour phase 이행량 비교

  • 김정열;신창호;김종열
    • Journal of the Korean Society of Tobacco Science
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    • v.20 no.2
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    • pp.225-230
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    • 1998
  • A comparative study of major brands of domestic and imported cigarettes saled in market has been conducted. The total amounts of total particulate matter(TPM), tar and nicotine delivered from cigarettes, as well as the amounts of tar, nicotine in puff by puff were determined in the mainstream smoke of 6 brands. In addition, the relative amounts of vapour phase in 3rd puff smoke were determined. Results showed that the amounts of TPM and tar delivered from domestic brands were similar to the imported brands and the amounts of total nicotine delivered from domestic brands were higher than those of imported brands. As the domestic cigarettes nicotine/tar(N/T X 100) ratio was 9.5-10.3, the imported one's was 5.6-8.1. However, the amounts of tar and nicotine in puff by puff for the domestic brands were lower than those of the imported cigarettes and the relative amounts of vapour phase in 3rd puff smoke for the domestic cigarettes were lower than those of the imported cigarettes.

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Cross Fertility between the Wild Japanese Quail in the Weishan Lake Area and Domestic Quail

  • Xu, W.;Chang, H.;Wang, H.Y.;Chang, G.B.;Du, L.;Lu, S.X.;Yi, H.Q.;Xu, Q.;Xu, M.;Wang, Q.H.
    • Asian-Australasian Journal of Animal Sciences
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    • v.16 no.10
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    • pp.1421-1423
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    • 2003
  • Cross fertility between wild Japanese quail and domestic quail was explored in an experiment conducted on 18(3♂, 15♀)wild Japanese quails in Weishan Lake area, 18(3♂, 15♀)medium-sized domestic quails and 18(3♂, 15♀)pint-sized domestic quails, which were divided into nine groups. This study demonstrated that wild quail could succeed in crossing with domestic quail,producing fertilized eggs and hatching first filial generation. The findings indicated that there were no reproduction isolation between the wild Japanese quail and domestic quail, and that the best cross combination was between wild male quail and medium-sized domestic female quail, in which the fertility rate and hatchability of fertilized eggs amounted to 42.86% and 29.63% respectively. Based on the results, a new way could be adopted to protect, exploit and utilize genetic resources of wild quail.

A Study on the Introduction of Signal Kanban System (Signal 간판시스템의 도입에 관한 연구)

  • 김태호;송수정;강경식
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.19 no.40
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    • pp.301-309
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    • 1996
  • The operation of the traditional pull Kanban system in Domestic is limited because the production circumstance of the Domestic industries have the characteristics of dynamic production circumstance such as high variability of demand, frequent machine breakdown or defect, high absence or separation rates of the employees. The purpose of this study is to find the optimal Kanban system for the production circumstance of the Domestic industry. By using the computer simulation, selected models are tested for the susceptibility to the production factors and with the analysis of the data from the simulations.

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A Study on the Perceptional Transition of Housework (가사노동에 관한 인식의 변화고찰)

  • 문숙재
    • Journal of Families and Better Life
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    • v.15 no.3
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    • pp.153-162
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    • 1997
  • The purpose of this study is to investigate the perceptional transition of housework from the ancient society to the modern society. In the ancient society, there was no difference in the meaning between domestic life and housework, it was thought that they were whole unity. In the medieval society, there was a beginning to differenciate the meaning between domestic life and housework, but there was no actual division between the one and the other. But in the modern society, it is thought that domestic life and housework is not only differenciated in concept, but also divided actually.

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Computational Prediction of Alzheimer's and Parkinson's Disease MicroRNAs in Domestic Animals

  • Wang, Hai Yang;Lin, Zi Li;Yu, Xian Feng;Bao, Yuan;Cui, Xiang-Shun;Kim, Nam-Hyung
    • Asian-Australasian Journal of Animal Sciences
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    • v.29 no.6
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    • pp.782-792
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    • 2016
  • As the most common neurodegenerative diseases, Alzheimer's disease (AD) and Parkinson's disease (PD) are two of the main health concerns for the elderly population. Recently, microRNAs (miRNAs) have been used as biomarkers of infectious, genetic, and metabolic diseases in humans but they have not been well studied in domestic animals. Here we describe a computational biology study in which human AD- and PD-associated miRNAs (ADM and PDM) were utilized to predict orthologous miRNAs in the following domestic animal species: dog, cow, pig, horse, and chicken. In this study, a total of 121 and 70 published human ADM and PDM were identified, respectively. Thirty-seven miRNAs were co-regulated in AD and PD. We identified a total of 105 unrepeated human ADM and PDM that had at least one 100% identical animal homolog, among which 81 and 54 showed 100% sequence identity with 241 and 161 domestic animal miRNAs, respectively. Over 20% of the total mature horse miRNAs (92) showed perfect matches to AD/PD-associated miRNAs. Pigs, dogs, and cows have similar numbers of AD/PD-associated miRNAs (63, 62, and 59). Chickens had the least number of perfect matches (34). Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses suggested that humans and dogs are relatively similar in the functional pathways of the five selected highly conserved miRNAs. Taken together, our study provides the first evidence for better understanding the miRNA-AD/PD associations in domestic animals, and provides guidance to generate domestic animal models of AD/PD to replace the current rodent models.

A study on the experience of the victim about spouse who completed domestic violence offender intervention program (배우자의 가해자 교정·치료 프로그램 이수에 대한 피해자의 경험연구)

  • Kang, Jina;Shin, Jiyoung;Lee, Hyunsook;Je, Obok;Cho, Myungsook;Jin, Heekyung
    • Journal of Family Relations
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    • v.23 no.3
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    • pp.31-50
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    • 2018
  • Objectives: The purpose of this study was to focus on the phenomenon of spouses experienced by offenders after completing the offender intervention program. Method: For this purpose, among the offenders who received the decision of counsel (counseling order) accused by domestic violence, who the other spouse selected case without counseling. After the in - depth interviews with the 9 participants, the collected data were analyzed by Colazzi 's phenomenological study method. Results: Major research findings can be summarized as follows. Category 1 was "Experiences about causes of violence", category 2 was "Experiences with forms of violence", category 3 was "What I wanted about my spouse when I called the police", category 4 was "What I wanted for myself when I reported to the police", category 5 was "the situation of the offender after completing the offender intervention program", category 6 was "what I experienced after completing the offender intervention program" and category 7 was "Experiences for Follow-up consultation needs". Conclusions: Based on the results of the research, counseling for perpetrators who are violent actors needed a therapeutic approach not only to strengthen the temporary punishment but also to help the family recovery on a continuous and sustainable level. Therefore, the implications of policy intervention for domestic violence were suggested.