• 제목/요약/키워드: restriction factors

검색결과 359건 처리시간 0.034초

Evaluation of Chloroplast Genotypes of Korean Cucumber Cultivars (Cucumis sativus L.) Using sdCAPS Markers Related to Chilling Tolerance

  • Ali, Asjad;Yang, Eun Mi;Lee, Sun Young;Chung, Sang-Min
    • 원예과학기술지
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    • 제31권2호
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    • pp.219-223
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    • 2013
  • DNA markers can determine the genotype of many species. Single nucleotide polymorphism (SNP) detection is difficult without sequencing but it becomes easier with sdCAPS method. Here an experiment was performed for developing molecular markers using two SNPs, CSatpB-SNP and CSycf1-SNP, of chloroplast in cucumber plants. Properly designed primers with nucleotide sequences for restriction enzymes proved success of PCR and efficacy of digestion by the restriction enzymes. Then these markers were used to study the genotyping of cucumber breeding lines and cultivars obtained from various sources in respect of their chilling stress response. We confirmed that a U.S. cucumber line, 'NC76' known to possess a nuclear factor for the chilling tolerance showed the chloroplast genotypes related to chilling tolerance. However all Korean cucumber cultivars tested in this study showed the chloroplast genotypes related to chilling susceptibility. In conclusion, to develop chilling tolerant cucumber, both maternal and a nuclear factors related to chilling tolerance should be transferred from 'NC76' when 'NC76' is used as a female source and other elite lines as recurrent parents.

자동차 공장의 Painted Body Storage 운영에 대한 시뮬레이션 연구 (A Simulation Study on the Operation of the Painted Body Storage in an Automobile Factory)

  • 문덕희;송성;하재훈
    • 산업공학
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    • 제18권2호
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    • pp.136-147
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    • 2005
  • This paper introduces a simulation study regarding the operation of the Painted Body Storage (PBS) in an automobile factory. In the paint shop of the factory, same colored bodies are grouped together in order to increase the effectiveness of process, for example decrease the loss of cleaning the painting-gun when the color of body changes from one to another. However the production of automobiles in the assembly shop is a typical example of the mixed model assembly production. Therefore PBS locates between the paint shop and the assembly shop for control the input sequence of bodies to the assembly shop, and it enables to meet the smoothing requirement of assembly sequence. There are highly restricted constraints on the assembly sequence in a assembly shop. Those are spacing restriction and smoothing restriction. If such restrictions are violated, conveyor-stop or utility work will be necessary. Thus the major objective of PBS is to control the assembly sequence in a way to meet the two restrictions. In this paper a case study of PBS in an automotive factory is introduced. The storage/retrieval algorithms are suggested and the proposed system is verified using simulation models. Sensitivity analysis for operating factors is also conducted.

독거노인과 가족동거노인의 건강 및 구강건강이 건강 관련 삶의 질에 미치는 영향 (Effects of general and oral health on quality of life in the elderly living alone and with family)

  • 정은주
    • 한국치위생학회지
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    • 제19권4호
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    • pp.577-589
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    • 2019
  • Objectives: The purpose of this study was to investigate the effects of general and oral health on quality of life in the elderly living alone and with family. Methods: We analyzed data from the $6^{th}$ Korea National Health and Nutrition Examination Survey. Distribution of the elderly living alone and with family based on the general characteristics and general and oral health was analyzed using complex-sample chi-square tests. Multiple logistic regression was used to analyze the factors affecting quality of life by calculating the 95% confidence intervals. Results: In the elderly living alone, the quality of life significantly correlated with restriction of activity, perceived general and oral health status, perceived stress, and speech difficulties. Further, in the elderly living with family, lower quality of life significantly correlated with restriction of activity, perceived health status, walking days per week, life time smoking history, Community Periodontal Index, and chewing and speech difficulties. Conclusions: The elderly are concerned with self-maintenance of general and oral health. Therefore, systematic policies related to health services need to be developed and operated at the national level. It is especially necessary to take social interest in the elderly living alone and a more continuous and professional approach in their health care.

인공지능을 이용한 LED 조명 시스템에 관한 연구 (A Study on the LED Lighting System using Artificial Intelligence)

  • 남영철;이상배
    • 한국정보통신학회:학술대회논문집
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    • 한국정보통신학회 2019년도 춘계학술대회
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    • pp.142-145
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    • 2019
  • 최근 들어 지구 온난화 및 고유가로 인한 에너지 위기로 전 세계적으로 이산화탄소 배출규제가 본격화되고 에너지 소비에 따른 지구환경을 보존하기 위한 대표적인 국제적인 GEF(Green Energy Family) 활동은 이산화탄소 배출 금지를 위한 교토의 정서(Kyoto protocol), RoHS(Restriction of Hazardous Substances directive)에서는 무 수은 조명 사용억제, WEEE(Waste Electrical and Electronice Equipment)에서는 조명 통신융합으로 폐기물 최소화를 목적으로 폐기물 회수를 요구하는 등 다각적 노력을 경지하고 있다. 본 논문에서는 기존의 외부 환경 요인(조도, 피사체와의 거리 등)에 의하여 실시간으로 변동되는 환경 데이터를 마이크로프로세서를 활용하여 외부 환경 요인을 확인하고 또한 퍼지 추론 시스템을 접목하여 RGB LED 모듈 조명 제어가 가능한 제어기를 구성하였다.

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남한 방송의 북한 보도 생산자 연구 - KBS와 MBC 북한 문제 담당기자와의 심층 인터뷰를 중심으로 (A Study on South Korea reporters reporting North Korea issues: Focusing on KBS and MBC)

  • 정재철
    • 한국언론정보학보
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    • 제48권
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    • pp.135-152
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    • 2009
  • 본 연구의 목적은 방송 기자들의 북한에 대한 인식 및 제작 차원에서 북한 방송 보도의 제약 요인들을 집중적인 심층 인터뷰를 통해 규명하고, 이를 바탕으로 통일 시대를 대비한 방송인들의 역할이 무엇인지를 탐색해 보는 것이다. 이러한 연구 목적을 위해 북한 전문기자들과 외교통일부 출입처 기자들로 구성된 KBS 3명과 MBC 3명이 집중적인 심층 인터뷰 대상으로 선정되었다. 연구 결과, 국내 방송사 기자가 북한 관련 보도에서 가장 많이 영향을 받는 요소로는 국민 정서나 특정 사건이 유발 시킨 정세인 것으로 나타났다. 또한, 현 정부가 주도하는 대결 구도의 경직된 대북 정책과 대북관 혹은 보수 언론의 대북관 등이 기자들의 자유로운 북한 뉴스 가치 판단에 심리적인 압박을 가하고 있는 것으로 분석되었다.

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동의병리학에서의 병리전변이론(病理傳變理論) 고찰 및 교육의 필요성 (Investigation of the Transforming Theories of Diseases and the Need of Teaching Them in the Pathology Class)

  • 지규용
    • 동의생리병리학회지
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    • 제19권5호
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    • pp.1105-1111
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    • 2005
  • In order to investigate the meanings and bases of transforming theories of diseases(病傳論), several relevant theories were collected from medical books since . The outside-to-inside changing process(pyoree jeon) was the fundamental pattern in febrile diseases regardless of slang han and wen bing after Han dynasty. But in case of numb disease the three exogenous pathogenic factors of wind, cold and dampness got into each viscera through five tissues like skin, vessesl, flesh, tendons, bones respectively. It was called corresponding changing process(sanghap jeon) here. The pathogenic changing process(byungsa jeon) had complicated details to explain pathologic processes, but could give useful informations on evaluating relative strength of pathogens and tendency ahead. The changing process of diseases of internal injuries were explained in case of emotional distress which is outbroken abruptly didn't follow regular order of viscera-emotion relations. So it was named random changing process(bulcha jeon) after 's usage. And marasmus and asthenic disease followed top-to-down or down-to-top changing process(sangha jeon) based on . There are many types of changing process of diseases between viscera and viscera or viscera and bowels like generation changing process, restriction changing process, changing process between couple, changing process of mutual transmission based on attributions of each element by the theory of 5 phases(五行論). And changing process to a neighbor doesn't have any special relations within two organs but has anatomical contiguity and physiological continuity between them. The transforming theories of diseases bring forth useful understanding on comings and goings of pathogenic factors and tendency and prognosis of disease, so they are needed to be taught in the course of pathology class.

CVP 분석을 이용한 면허어업 손실보상액 평가 모형의 도출 (The Derivation of a Model to Estimate Compensation for Damages in Chartered Fisheries by Using CVP Analysis)

  • 정형찬
    • 수산경영론집
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    • 제31권2호
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    • pp.133-153
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    • 2000
  • During the last several decades, Korea has been regarded as one of the fastest growing economies in the world. However, the small size of national land has not met the vigorous demand for land necessary to develop economic infra-structures such as large-scale harbors airports and highways. In order to satisfy the growing demand for land, the Korean government and industry have implemented the national land development programs to reclaim land from the sea fur the several decades. It is certain that these land development programs have resulted in a lot of property disputes between fishermen and public project administrators. This paper is to develop a quantitative model to estimate compensation for damages or restriction of charted fisheries resulting from large-scale public projects. In this paper, the compensation model is derived by using cost-volume-profit analysis framework because the compensation for charted fisheries basically depends on the factors such as the costs, production volume, profit of charted fisheries damaged or restricted by public projects. The model shows that the compensation for damages or restriction of charted fisheries is determined by the average annual profit, damage duration period, and the degree of fishery damages. In addition, the degree of fishery damages measured by the ratio of lost profit to annual average profit turns out to be determined by the following factors: annul profit, unit variable cost, decrease in production volume, the rate of increase in variable cost, and a change in fixed cost. Furthermore, this parer discusses the nam issues related to practices and regulation of the compensation for fishery damages in the current Fishery Act of Korea and suggests some appraisal methods which will be able to lead to theoretically correct and fair compensation for fisheries damages resulting from large-scale public projects.

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유추해석을 이용한 차동변압기의 계열화 설계기법 고찰 (A Study on the Systematization Design of Differential Transformer by using Analogical Interpretation)

  • 조경재;차인수;이권현
    • 전력전자학회:학술대회논문집
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    • 전력전자학회 1999년도 전력전자학술대회 논문집
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    • pp.218-221
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    • 1999
  • We introduce the systematization design method using similarity theory which is profitable in the compatability, the reduction of construction time and price. The design method can make us predict the characteristic experiment for the magnitude we desire as the expression equation applied continuously. We can induce the design sample the user demand with the verification of the data on optimum design previously. Therefore, in case of designing and developing the products, systematization design method is very useful for the standardization of the developed goods, compatability, the reduction of construction time and price. In this paper, we presented the analogical algorithms of systematization design using similarity theory, design factors and processing method of the restriction factors. Also, we analyzed the output voltage in terms of input voltage and displacement as choosing a differential transformer as the model.

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유추해석에 의한 차동변압기의 계열화 설계 (Systematization Design of a Differential Transformer by Analogical Analysis)

  • 조경재;차인수;이권현
    • 대한전기학회논문지:전기기기및에너지변환시스템부문B
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    • 제49권9호
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    • pp.578-583
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    • 2000
  • We introduce the systematization design method using analogical analysis. The design method can make us predict the characteristic experiment for the magnitude we desire as the expression equation applied continuously. We can induce the design sample the users demand with the verification of the data on optimum design previously. Therefore in case of designing and developing the products systematization design method is very useful for the standardization of the developed goods compatability the reduction of construction time and price. In this paper we present the analogical algorithms of systematization design using similarity theory design factors and processing method of the restriction factors. Also we analyze the output voltage in terms of input voltage and displacement as choosing a differential transformer as the model.

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가정환경 자극검사(HOME)와 학령전 아동의 발달 수준과의 관계 (The Relationship of HOME to Preschool Children's Developmental Levels)

  • 장영애;서용선
    • 아동학회지
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    • 제4권
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    • pp.1-10
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    • 1983
  • This study examined the characteristics of the relationship of home environment variables and preschool children's intelligence, learning readiness and socio-emotional developments. The subjects of this study were 63 children at age five and their mothers. Instruments included the children's intelligence test, preschool inventory for learning readiness, the socio-emtional rating scale and the inventory of HOME. The data of the present study were analyzed by the statistical methods of Pearson's product-moment correlation coefficient and step-wise multiple regression analysis. The kinds of HOME variables that significantly predict children's intelligence were "need gratification and avoidance of restriction" "quality of language environment" "play materials" "aspects of physical environment" "organization of stable and predictable environment". The variables that significantly predict children's socio-emotional developments were "breath of experience" "fostering maturity and independence" "developmental stimulation". All of the HOME variables were not significantly predict children's learning readiness. The kinds of HOME factors that significantly predict children's intelligence were factor II and factor III. Factor I predicted children's socio-emotional developments significantly. All of the HOME factors were not significantly predicted children's learning readiness.

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