• 제목/요약/키워드: indirect method

검색결과 1,754건 처리시간 0.026초

$Gd_2O_2S(Eu^{2+} )/a$-Se$ 구조의 X선 검출 센서에서 $a-Se_{1-x}As_x$의 검출효율 비교 (Comparison of the Detection Efficiency $a-Se_{1-x}As_x$ in X-ray Detection Sensor of $Gd_2O_2S(Eu^{2+})/a$-Se Structure)

  • 강상식;박지군;이동길;문치웅;남상희
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 2002년도 추계학술대회 논문집 Vol.15
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    • pp.436-439
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    • 2002
  • Recently, It has performed that the basic research of the photoconductive material and the development and application of the digital radiograph detector which is divided into the direct and indirect method. The objective of this study investigate the effect of the electric characteristic about changing the composition of Arsenic in hybrid detector system for compensating a defect of conventional. We fabricated samples using the amorphous Selenium and Arsenic alloy with various concentrations of the Arsenic{seven step 0.1%, 0.3%, 0.5%, 1%, 1.5%, 3%, 5%). And using EFIRON optical adhesives the formed multi-layer$(Gd_{2}O_{2}S(Eu^{2+}))$ composed phosphor layer. X-ray and light sensitivity was measured to study x-ray response characteritics. As results, highest value was measured as output net charge and SNR were $315.7pC/cm^2/mR$ and 99.4 at 0.3%As doping ratio.

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신문의 환경 보도 분석과 신문활용교육의 가능성 (Analysis of Environment Coverage in Newspapers and Possibility of Application in NIE(Newspaper In Education))

  • 오강호;고영구
    • 한국환경교육학회지:환경교육
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    • 제17권1호
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    • pp.67-76
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    • 2004
  • This study is considered how to use newspapers to apply education by the way of analyses of environment coverage in newspapers. Data for the study were gathered by content analyses of KINDS(Korean Integrated News Database System) established by Korean Press Institute. The environment coverage is mainly placed in social and regional magazines of newspapers, and the news story are mainly assigned to straight/feature magazines in type. The news of environment coverage is mostly gathered from data by government-informer, and the news is positive/agreement or negative/disagreement in tenor. The news gathering methods of planning/magazine newspaper serial are scientific and objective, and they are of the firsthand data by news reporter, contributions by experts and interviews. The spaces of the news are specially edited. The environment news is often negative/disagreeable in tenor because the news is mostly of straight ones written by non-experts. Applying newspapers in education is a useful learning method which students could develop thinking power and induce concerning and interest by themselves. From the results of the study, the useful suggestions to apply newspapers to learning are as follows. At first, spaces and types of news must be read in detail. Secondly, it is hopeful that indirect news by not writer himself might be possibly avoided in learning. Thirdly, the themes of news would be picked up in relation with learning contents. Lastly, it suggests that the tenor of news is neutral or, in cases, positive and negative together possibly.

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채소 식품의 건강 이미지가 기호와 섭취에 미치는 영향 (Influence of Healthy Image on Preference and Intake of Vegetables)

  • 박모라
    • 동아시아식생활학회지
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    • 제23권2호
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    • pp.141-152
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    • 2013
  • This study investigated the effects of image on the preference and intake frequency of 19 vegetables. A total of 359 usable surveys were collected using a convenient sampling method. The subjects included females (51.8%), university students (50.7%), home residents (66.9%) and subject's spending 20,000~40,000 won on meals/week (41.5%) and eat out 2~3 times/week (29.5%). The intake frequency of vegetables was 2~3 times per month. The healthy image of all vegetables was good overall and the average preference was 3.78 (out of 5 on the Likert). Tomatoes had the healthiest image, onions the highest preference, and Korean cabbage the highest intake frequency. For males, the vegetable with the healthiest image was sesame leaf, while the healthiest foods for females were broccoli and tomatoes. Elementary students had a healthier image of cucumber, bean sprouts, radish, sesame leaf, lettuce, radish leaf, and cabbage than university students and adults. Home residents had a healthier image of cabbage and burdock than other types of residents. Subject that st over 20,000 won per week on meals had a higher image of most vegetables. In terms of preference, males liked Korean cabbage, green pumpkin, balloon flower roots, radish leaf, and lotus root, but female liked tomatoes. In addition, elementary students, home residents, and subjects who eat out less often tended to prefer vegetables. In terms of intake, there was a high frequency of intake for all vegetables in adults. Home residents specifically had a higher intake of cucumber, carrot, bean sprouts, spinach, green pumpkin, balloon flower roots, lettuce, radish leaf, broccoli, burdock, lotus root, and tomato. Overall, the healthy image of vegetables had a positive influence on their preference and intake frequency. Therefore, to encourage the intake of vegetables, direct or indirect variables should be examined.

21세기 패션에 나타난 원시주의의 표현방법과 특성 (Type of Expression and Characteristics of Primitivism in $21^{st}$ Century Fashion)

  • 김선영
    • 복식문화연구
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    • 제18권2호
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    • pp.229-244
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    • 2010
  • This study aims to discuss the type and characteristics of primitivism in the modern fashion of the $21^{st}$ century and, as a research method, the concept of primitivism as well as the transition of the patterns of primitivism expressed in modern art have been considered and reviewed through a variety of references. In particular, an empirical analysis of the works that have been created from 2000 to 2009 has been performed using domestic and overseas fashion and collection magazines. The characteristics of primitivism in modern fashion possess the following types of expression: First, Sensuality can be cited as one of the characteristics, either by using direct or indirect exposure of the human body, a silhouette which fits tightly to the body, or creating the effect of sensual beauty using animal fur or bird feathers. Second, Incantation: Masks symbolizing primitive incantation are used to cover the human face or primitive incantation is incorporated as a theme of hair accessories or fashion trinkets, etc. In addition, such decorations as tattoos and the body colorations of ancient tribes are reproduced in modern fashion by means of body painting, printing or other accessories, emphasizing the image of occult primitiveness. Third, Naturalness can be cited as one of the characteristics. Naturalness is emphasized in modern fashion not through artificial decorations and processing, but rather through different patterns of exposure by which natural purity can be felt or through the use of non-artificial materials which recalls primitive civilization. Forth, Playfulness is expressed in the form of graffiti or abstract letters and paintings, and the character of the play is often expressed by the use of grotesque images based on various distortions and exaggerations of the human body, the utilization of symbols of primitive incantation and body and/or facial painting. Fifth, Lastly 'folkishness is emphasized. Folk-like objects, facial decorations, exposure of the body and intense color contrasts typically represent the folkish characteristics.

헤어스타일 불평행동과 보상 및 헤어샵애고도의 구조모형 (Structural model of complaint behavior for hair style, compensation, and hair salon patronage)

  • 이혜원;김미영
    • 복식문화연구
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    • 제26권3호
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    • pp.282-295
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    • 2018
  • Hair style allows consumers to express their aesthetic sense and individual beauty. However, due to the attributes of hairdressing services and the high expectations of consumers, complaints are increasing rapidly. This study examined the complaint behavior, compensation and hair salon patronage of consumers. Then, a model is presented that explains the complaint behavior for hairstyling, forms of compensation, and hair salon patronage through empirical analysis. This study was conducted by a survey method. A total of 399 questionnaires were used for the analysis. The data were analyzed using SPSS 23.0 and AMOS 23.0 statistical software. The dimension of complaint behavior for hair style included verbal complaints, non-verbal complaints in the salon and private complaints outside the salon. The forms of compensation included re-procedure, psychological, and material compensation. Hair salon patronage was one-dimensional. These results were obtained through exploratory and confirmatory factor analysis. Then the conceptual model was empirically analyzed by covariance structure analysis and obtained in final form through model modification. Verbal complaint behavior positively influenced re-procedure compensation. In addition, non-verbal complaint behavior had positive effects on psychological and material compensation. Hair salon patronage was positively affected by re-procedure and psychological compensation. However, private complaint behavior had a negative effect on hair salon patronage. The direct and indirect effects of the paths among variables were verified by analyzing the mediating effects of different forms of compensations. It is possible to establish differentiated marketing strategies with these findings for consumers with complaint behaviors by considering the forms of compensation.

중합효소연쇄반응(PCR)을 이용한 고양이 혈액내에서의 Toxoplasma gondii 검출에 관한 연구 (Polymerase chain reaction for the detection of Toxoplasma gondii in the blood of cats)

  • 서명득;주보현
    • 대한수의학회지
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    • 제39권6호
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    • pp.1151-1160
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    • 1999
  • This study was conducted to detect the toxoplasma-specific DNA in peripheral blood collected from cats experimentally infected with Toxoplasma gondii (RH strain) and from domiciled cats by B1 gene-base polymerise chain reaction(PCR). The sensitivity of oligonucleotide primer, T-1 & T-2, designed from toxoplasma B1 gene amplification method was compared with parasite detection by mouse inoculation(MI). And also, latex agglutination test(LAT) and indirect fluorescent antibody test(IFAT) were conducted to detect the fluctuation of serum antibodies compared with the detection of toxoplasma by PCR and MI. Toxoplasma B1 gene PCR was shown consistently high sensitivity and the results obtained by PCR agreed completely with those from MI. All blood samples collected before infection with T gondii gave negative results by PCR and MI. Also, toxoplasma Bl gene PCR was not cross reaction with Neospora caninum DNA and normal cat leucocyte as controls. The toxoplasma-specific DNA was detected by PCR in blood of 5 cats experimentally infected with T gondii 6 days after infection and the detection of this specific-DNA was long lasted in blood for 64 days after infection. The detection of toxoplasma-specific DNA by PCR could be identified as few as 10 tachyzoites and the isolation of T gondii by MI could be isolated as few as 1 tachyzoite from tenfold serial dilution of T gondii with normal cat blood, respectively. In healthy domiciled cats, the toxoplasma-specific DNA and the parasite were detected and isolated in blood from 3 of 56(5.3%) cats by both PCR and MI, respectively. In the results of antibody test from the total 56 heads of healthy domiciled cats, the positive rates are 15(26.7%) by LAT and 19(33.9%) by IFAT. These results suggest that PCR detection of toxoplasma can be applied as a sensitive and specific diagnostic and research tool.

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선박평형수 관리시스템을 위한 해수 살균법 (Sterilization of Seawater for the Ballast Water Management System)

  • YUN, YONGSUP;CHOI, JONGBEOM;KANG, JUN;LEE, MYEONGHOON
    • 한국표면공학회:학술대회논문집
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    • 한국표면공학회 2016년도 추계학술대회 논문집
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    • pp.172-172
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    • 2016
  • The International Maritime Organization(IMO) adopted the International Convention for the Control and Management of Ships' Ballast Water and Sediments in 2004 to prevent the transfer of aquatic organisms via ballast water. Forty ballast water treatment systems were granted final approval. A variety of techniques have been developed for ballast water treatment including UV treatment, indirect or direct electrolysis, ozone treatment, chemical compounds and plasma-arc method. In particular, using plasma and ozone nano-bubble treatments have been attracted in the fields. However, these treatment systems have a problem such as remained toxic substance, demand for high power source, low efficiency, ets. In this paper, we present our strilization results obtained from membrane type electrolytic-reduction treatment system The core of an electrolysis unit is an electrochemical cell, which is filled with pure water and has two electrodes connected with an external power supply. At a certain voltage, which is called critical voltage, between both electrodes, the electrodes start to produce hydrogen gas at the negatively biased electrode and oxygen gas at the positively biased electrode. The amount of gases produced per unit time is directly related to the current that passes through the electrochemical cell. From the results, we could confirm the sterilization effect of bacteria such as S. aureus, E. Coli and demonstrate the mechanism of sterilization phenomena by electrolytic-reduction treatment system.

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다중매개모델에서 bootstrapping기법을 이용한 흡수능력의 매개효과 분석 (A Mediation Analysis of Absorption Capacity by Bootstrapping Technique in Multiple Mediator Model)

  • 김현우;이홍배;신용호
    • 한국시뮬레이션학회논문지
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    • 제24권4호
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    • pp.89-96
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    • 2015
  • 매개효과 검정기법으로 널리 사용하고 있는 Baron and Kenny 접근법, Sobel, Aroian, Goodman 검정법들의 통계적 검정력이 약할 뿐만 아니라, 정확하지 않다는 비판이 대두되면서, bootstrapping 기법이 대안으로 제시되고 있다. 이에 본 연구는 bootstrapping 기법을 토대로 세 개 이상의 변수로 구성된 다중매개모델에서의 매개효과 검정을 위해 가상의 phantom 변수를 도입하여 검정하였다. 특히, 경영전략분야의 자원기준관점 연구에서 진행되고 있는 조직자원과 매개변수 흡수능력, 그리고 기술사업화역량 관계 모델을 다중매개모델로 설정하여, bootstrapping 접근방법과 phantom 변수 설정을 통해 총간접효과 크기와 유의확률을 계산하고, 흡수능력의 매개효과를 검정하였다. 검정결과 매우 효율적이고, 체계적인 매개효과 검정이 가능하였음을 확인할 수 있었으며, 인적자원과 물적자원의 자원 특성에 따라 흡수능력의 매개 특성도 차이가 있음을 확인하였다.

일제강점기 이후 석탑(石塔) 조사연구사 (A Study on the Research History of Stone Pagoda after Japanese Colonial)

  • 지성진;서치상
    • 건축역사연구
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    • 제20권1호
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    • pp.61-75
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    • 2011
  • This study aims to investigate the changing aspects about research methodology of stone pagoda from the period of Japanese colonial to now. There were the differences in purpose, method and analysis of the research according to each period. In Japanese colonial period, the purpose of research was to make lists of almost stone pagodas in Korea. Following this, Japanese researchers conducted detailed research for academic purpose. They took measurements of stone pagodas and made drawings. After liberation the research was focused on the relics contained in pagodas. They proceeded to investigate the inner relics in order to attract the attention of the people. In the late 1900's, the repair works of cultural heritages were increased. Many reports of the repair works were released and sent to administration offices. The reports contained the change aspects of situation between before work and after with drawings or simple investigation documents. In the 1990's, the restoration works for important stone pagodas were started by the National Research Institute of Cultural Heritage. Since then, researches from various way - architectural and conservational researches about historical interpretation, shape, structure, proportion, technique, etc. - progressed for careful restoration and accurate study. In Recent years, various professional organizations(in the field of structure, physics, chemistry, biology, lithology, etc.) started to join the researches. Researches conducted studies directly with the stone pagodas, as well as conducting indirect studies with the stone pagodas, such as the structural stability of stone pagodas, the characteristics of rock, and conservation chemicals. Today the research project 'The preservation project of stone cultural property' is being conducted by the National Research Institute of Cultural Heritage. The purpose of this project is to gain more detailed and accurate investigation documents to be provided for the people. In conclusion, researches from various fields must be included in the research. Furthermore, a synthetic study should be done through comparing similar characteristics or different characteristics among many research results.

혁신지향 조직문화가 경영성과에 미치는 영향 -진취적 기업가행동과 시장지향성의 매개효과를 중심으로- (The Influence of Innovation-oriented Organizational Culture on Management Performance - Focusing on the Mediating Effect of Proactive Entrepreneurial Behaviour and Market Orientation -)

  • 주철근
    • 디지털융복합연구
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    • 제18권8호
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    • pp.119-131
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    • 2020
  • 스타트업이 전통적 거대기업을 물리치는 역전현상의 원인으로, 기업가정신과 시장지향이 조직문화와 경영성과 관계에 미치는 매개효과를 살펴보는 것이 본 연구의 목적이다. Hayes(2013년)가 제안한 부트스트래핑의 연구방법을 통해 총효과, 직접효과, 간접효과 분석을 실시했다. 그 결과 조직문화와 경영성과 사이에는 직접적인 영향관계가 없었지만, 조직문화와 경영성과의 관계에서 기업가적 행동과 시장지향성을 모두 매개함으로써 경영성과에 긍정적인 영향을 미친다는 것을 확인했다. 본 연구는 기업가정신과 시장지향성 등 기존 이론과 연계하고 기업성과에 필요한 역량목표의 범위를 조직문화로 확대하였다는 점에서 의의가 있다. 기업은 경영성과와 가치창출을 위한 혁신지향적 조직문화를 창출하고 기업가적 행동과 시장지향성을 가지고 조직의 관성으로부터 문화를 개방할 필요가 있다.