• 한국초등과학교육학회지:초등과학교육
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• 제33권4호
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• pp.634-645
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• 2014

The purpose of this study was to analyze the teachers' stages of concern and levels of use on STEAM of the 2009 elementary science curriculum and to support effective application according to the teachers' stages and levels. Therefore this study was conducted by the Concerns-Based Adoption Model (CBAM). The total number of 113 teachers participated in this study. The results of the study were as follows: First, most teachers were in the stage of awareness. Second, the results of the chi-square test showed that the stages were significantly different according to their positions, training experiences and final degrees (p<.05). Third, about half of teachers were in the level of orientation and preparation. The others were in the level of routine, integration and renewal. Fourth, the results of the chi-square test showed that the levels were significantly different with the categories of their gender, position, age, career in education, workplace and training experience (p<.05). Fifth, the correlation coefficient between stages of concern and levels of use (r=.59) was relatively high (p<.05). Based on these results, we suggested that the support of application should be provided according to the teachers' stages and levels.

• 한국작물학회지
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• 제32권1호
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• pp.48-54
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• 1987

수도 기계이앙 재배에 있어 관행 시비법과 추비시기 및 비율를 달리하여 적정 분시방법을 밟히고자 '85년 호남작물시험장(이리)에서 동률벼를 공시하여 시험을 실행한 결과를 요약하면 다음과 같다. 1. 엽신질소함량은 기비중점시비(T$_1$, T$_2$)에서는 최고분얼기에 수비중점 (T$_4$, T$_{5}$) 및 5회분시(T$_{7}$)에서는 감수분열기에서 높았다. 2. 출수이후의 CGR, RGR, NAR은 5회분시구(T$_{7}$)가 가장 컸다. 3. 각 생육시기별 CGR과 NAR, NAR과 RGR, CGR과 RGR 간에는 유의적인 정의 상관이 있었으며 생육시기가 진전됨에 따라 상관계수가 커지는 경향이었다. 4. 수량에 대한 각 생육시기별 CGR의 상여도는 출수후의 CGR이 가장 컸다. 5. 수량은 기비중점(T$_1$, T$_2$) 보다 수비중점(T$_4$)및 기비 30%후 4회 분시구(T$_{7}$)에서 높았다.

• JSTS:Journal of Semiconductor Technology and Science
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• 제16권5호
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• pp.650-656
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• 2016

Voltage controlled oscillator (VCO) is widely used circuit component in high-performance microprocessors and modern communication systems as a frequency source. In present work, VCO designs using the different combination of NAND gates with three transistors and CMOS inverter are reported. Three, five and seven stages ring VCO circuits are designed. Coarse and fine tuning have been done using two different supply sources. The frequency with coarse tuning varies from 3.31 GHz to 5.60 GHz in three stages, 1.77 GHz to 3.26 GHz in five stages and 1.27 GHz to 2.32 GHz in seven stages VCO respectively. Moreover, for fine tuning frequency varies from 3.70 GHz to 3.94 GHz in three stages, 2.04 GHz to 2.18 GHz in five stages and 1.43 GHz to 1.58 GHz in seven stages VCO respectively. Results of power consumption and phase noise for the VCO circuits are also been reported. Results of proposed VCO circuits have been compared with previously reported circuits and present circuit approach show significant improvement.

• 대한원격탐사학회지
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• 제19권3호
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• pp.263-269
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• 2003

This research examined the capabilities of KOMPSAT-1 EOC images for the application of urban environment, including the urban changes of the study areas. This research is constructed in three stages: Firstly, for the application of change detection techniques, which utilizes multi-temporal remotely sensed data, the data normalization process is carried out. Secondly, the change detection method is applied for the systematic monitoring of land-use changes. Lastly, using the results of the previous stages, the land-use map is updated. Consequently, the patterns of land-use changes are monitored by the proposed scheme. In this research, using the multi-temporal KOMPSAT-1 EOC images and land-use maps, monitoring of urban growth was carried out with the application of land-use changes, and the potential and scope of the application of the EOC images were also examined.

• Wind and Structures
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• 제4권1호
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• pp.45-62
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• 2001

This paper is focused on the torsional effects that are induced on bridge piers by unbalanced wind buffeting on the deck during double cantilever erection stages. The case of decks with variable cross section is considered in particular as this characteristic is typical of most frame bridges that are built by the cantilever method. The procedure outlined in the paper is basically an application of the method that Dyrbye and Hansen (1996) have illustrated for decks with constant cross section. This format was chosen because it is suitable for design purposes and may easily be implemented in structural codes. As a complement, the correspondence with the format that is adopted in the Canadian code (NBCC 1990) for the gust factor is established, which might be useful to bridge designers used to the North-American approach to the gust effects on structures. Only alongwind turbulence and horizontal movements of the deck are considered. The combination of torsional and bending effects is also discussed and it is illustrated with an example of application.

• 한국통신학회논문지
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• 제30권3B호
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• pp.105-113
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• 2005

본 연구에서는 PVM으로 구성된 클러스터의 공유를 기반으로 하는 단계화된 응용서비스 플랫폼을 기반으로 응용서비스를 구현함으로써 응용서비스 플랫폼의 유용성을 평가하였다. 응용서비스 플랫폼은 요청 처리에 필요한 전 과정을 요청처리 단계와 서비스제공 단계로 나누고, 서비스요청처리 단계를 위한 전위응용서버의 서비스관리자와 요청된 서비스의 분산을 담당하는 부하관리자, 그리고 후위서버에서의 서비스제공을 위한 작업관리자로 구성된다. 구현된 응용서비스 플랫폼은 필요한 처리자원을 동적으로 할당, 시스템을 재구성함으로써 기존의 단일서버 시스템에 비해 부하의 변화에 보다 능동적으로 대처할 수 있을 뿐 아니라, 기능의 변경없이 다양한 응용서비스의 구현을 지원함을 확인하였다.

• 한국작물학회지
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• 제42권3호
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• pp.299-305
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• 1997

풋콩에서 문제시되는 미이라병의 꼬투리 리병 및 종실감염을 줄이기 위해 포장에서 베노밀을 생육 시기별로 처리한 결과는 다음과 같다. 1. 베노밀 처리에 따라 미이라병반이 없는 풋콩의 건전 꼬투리비율은 R5기 1회처리와 R4＋R5기 2회처리에서 가장 높았다. 2. 건전 꼬투리비율은 주경보다 분지에서, 그리고 상위부가 하위부보다 높았다. 3. 종실의 미이라리병입율은 베노밀 처리에 따라 감소되었고, R6기 1회처리와 R4.＋R6기 2회처리에서 낮았다. 4. 베노밀 처리에 다라 건전 꼬투리 및 종실비율이 높아져서 건전 꼬투리수량은 34∼76％ 그리고 종실수량은 51∼98％ 증수하였다.

• 한국작물학회지
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• 제26권2호
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• pp.179-184
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• 1981

본 시험은 1980년도에 전남대학교 시험포장에서 수행된 것으로서, Metribuzin의 처리시기에 따른 품종반응차이를 알기 위하여 광교외의 5대두품종과 Pre-sowing 외에 4처리 시기를 공시하여 작물의 초기생육반응을 조사하여 다음의 결과를 얻었다. 1. 공시품종내에서는 약제에 대한 저항성 차이가 뚜렷하지 않았다. 2. 품종차이보다는 약제처리시기에 따른 반응차이가 헌저하였으며, 대부분 대두품종의 저항성 크기는 E. Post-emg.< L.Post-emg $\ll$re-sowing=Control의 순으로 컸다. 3. Metribuzin의 약해 Symptom은 주당엽수 < 초장 $\ll$주당분지수의 순으로 뚜렷한 감소를 보이는 특징이었다. 4. 우리나라 대두품종에 대한 Metribuzin의 사용은 Pre-sowing이나 Pre-emg.가 추천되며, 특히 Pre-sowing에 대한 토양혼화법 연구와 단제보다는 혼용처리의 이점을 찾을 필요가 있다.

• 여성건강간호학회지
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• 제16권4호
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• pp.317-325
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• 2010

Purpose: This study was to examine the differences in health belief variables and HPV (Human Papillomavirus) knowledge in Pap smears according to the stages of change using Trans-theoretical Model (TTM) among married nurses. Methods: The research design was a cross sectional survey. Participants were 387 married nurses working in general hospital located metropolitan city. Measurement variables were perceived threatening, perceived severity, benefits of Pap, HPV knowledge and stages of the change in Pap smear. Results: Classified stages were pre-contemplation 3.9%, contemplation 17.8%, relapsing 29.5%, action 31.0%, and maintenance 17.8%. Accuracy rate of HPV knowledge were low ranging from 15% to 45%. Among the variables, perceived threatening (F=3.56, p=.007), perceived severity (F=9.73, p<.001) and HPV knowledge (F=7.52, p<.001) were significantly different by stages of change. Conclusion: Application of TTM to Pap smears was efficient to know the nurse's level of health behaviors, Health belief variables and HPV knowledge were main factors to identify the stages of change. The continuation of Pap smears and the education in relation to HPV knowledge should be encouraged for married nurses.

• 유통과학연구
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• 제16권7호
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• pp.35-45
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• 2018

Purpose - The study investigates the impact of consignment on the economic performance in the supply chain with three stages. Through the analysis on distinct forms of consignment application, this study intends to answer to the question of how the consignment should be used in the multi-stage supply chain. Research design, data, and methodology - The proposed mathematical model represents the supply chain system with a manufacturer, a wholesaler, and a retailer. Three different forms of consignment application are considered depending on which stages adapt the consignment, and their system profits are compared with the traditional non-consignment system in numerical examples. Results - The numerical examples show that the serial consignment application performs better than any other forms of consignment as well as the non-consignment system. The additional analysis indicates that the system profit is significantly sensitive to the consignment rate. Conclusions - The outcome of this study implies the potential of consignment to improve the system performance even in the multi-stage supply chain system. Meanwhile, each supply chain member's preference to the specific form of consignment application could be different depending on which stage he has. All the supply chain members should jointly determine the appropriate consignment rates to obtain the best system performance.