• KOREAN POULTRY JOURNAL
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• s.92
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• pp.52-56
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• 1977

국민소득의 증가로 인한 축산물소비 확대에 큰 비중을 차지하는 계육과 계란의 수요를 충족시키기 위하여 산란율이나 육추율을 높임은 물론 중요한 일이나 이에 못지 않는 부화율의 향상으로 보다 많은 수익을 올릴 수 있다. 그리하여 현재 우리나라 부화율 실태를 알아보고 거기에 따르는 원인을 구명하여 부화율 향상을 위한 방안을 생각해 보기로 한다.

• Food Industry
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• s.16
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• pp.45-47
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• 1973

식품은 국민보건과 체위향상을 위하여 식량생산과 공급계획 및 국민의 식생활 개선에 기여하는 주요물이다. 식품의 수요는 국민의 생활수준의 향상에 따라 증가되어 간다. 더욱이 세계적으로 식량부족에 대처하는 획기적인 식량자원의 개발, 식품의 품질향상을 위한 제조, 관리 등이 국민생활상 긴급한 과제로 등장되고 있다.

• KOREAN POULTRY JOURNAL
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• v.19 no.5 s.211
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• pp.34-38
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• 1987

육용종계의 능력이 괄목할 만큼 향상되었다. 능력향상은 곧 행산성향상을 증가시키는 것과도 직결되는 일이다. 그러나 유전적 능력만이 우수하다고 성장율이 저절로 우수해지는 것은 아니다. 무엇보다 종계가 갖는 환경과 사양관리가 성공의 열쇠가 됨을 알아야 한다.

• Journal of Engineering Education Research
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• v.10 no.4
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• pp.93-122
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• 2007

The purpose of this study is to develop a systematic and effective PBL-based robot education program for improving creativity, and to analyze its effect on improving creativity of students in a science high school. The programs for 22 classes, designed to be used in a science high school, were developed and implemented. 8 teams got the abilities to independently build their own robots throughout all the process. The resultant improvement in creativity was analyzed in terms of gender and academic achievements. In the TTCT test, there was a significant improvement in creativity, especially the greatest in a subcategory 'originality.' While there was no significant difference in creativity by gender, there was a little difference in creativity by academic achievement. Especially the lowest group (Ha) showed the greatest improvement in creativity. This robot education program is expected to be used as an introductory one for the college of engineering.

• Journal of Broadcast Engineering
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• v.23 no.2
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• pp.206-217
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• 2018

We develop the signal processing method for adaptive implementing direction of signal and the frequency sensitivity of human visual system(HVS). Existing multiband energy scaling method makes ringing artifact because it does not consider signal direction. To solve this problem, we use block gradient for signal direction in addition to existing method. And we use the fact that frequency component of signal is more sensitive than value of signal over human eyes. we enhance the signal according to contrast sensitivity function(CSF) which is the model of frequency sensitivity of human eye. Compared that the existing analysis models only improve the efficiencies in the existing systems, the developed method can process the image signals to be more desirable and suitable to HVS.

• Journal of Korea Game Society
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• v.9 no.2
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• pp.23-28
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• 2009

There are a lot of games which have good benefits in the game genre such as serious game. In this paper we implement an serious game for increasing intensive power by calculating the index of the intensive power based on EEG signal. First we explain the definition of the EEG and the classification of the brainwaves and we depict the method for increasing the intensive power. Then we apply the index of the intensive power to the game production to train the intensive power. At last we make an experiment on the effect of an game which increases the intensive power and the analysis shows the increase of the intensive power.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2004.04a
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• pp.385-392
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• 2004

The objective of this study is to evaluate the effectiveness of new operation system for port container terminals. We assumed that the operation system of container terminal consists of monitorig ＆ control system, operation system, planning system, and information technology, and we selected total 19 technology alternatives. Through the results of questionnaire and interview received from field expert, we established the evaluation model and analyze the productivity improvement by estimating the weight and the priority of productivity for operation system. From the developed model, we provide useful implications to introduce new technologies of operation system for domestic container terminals.

• Journal of Korea Multimedia Society
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• v.14 no.11
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• pp.1365-1372
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• 2011

This paper proposes a cognitive contrast enhancement algorithm based on the non-linear masking to advance low cognitive contrast in dark regions of images. In order to improve brightness in dark regions of an image, we propose a new contrast enhancement algorithm based on the non-linear masking using regional adaptive parameters of an image. For performance evaluation of the proposed method, chromaticity and saturation comparison as a quantitative assessment and z-score comparison as a qualitative assessment were executed between test images and their simulated images by SSR, MSR, a conventional non-linear masking and the proposed method, respectively. As a result, the proposed method showed low chromaticity and saturation difference and improved cognitive contrast for the three methods.

• Proceedings of the KIEE Conference
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• 2005.07a
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• pp.289-291
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• 2005

고도화, 정보화시대를 맞이하여 대형인버터, 컴퓨터 등 전력풀질을 저하시키는 비선형 부하의 보급이 확대되고 있으며, 이들 비선형부하에 의한 전력품질 저하시 공정제어기, 마이크로프로세서 등과 같이 전력품질에 매우 민감한 기기의 오동작 등으로 경제적 피해가 증대되고 있다. 따라서 중요부하 및 계통을 보호하기 위한 전력전자 기술을 응용한 전력품질 보상기기 적용이 필요하다. 이에 본 연구에서는 전력품질 향상기기 성능평가 텐 실증기술 개발을 위한 전력풀질 실증시험장 구축 및 전력풀질 향상기기 실계통 적용시 효과분석을 위한 해석기법을 확보하고자 하였다. DSTATCOM, DVR, SSTS 등 전력품질 향상기기의 성능평가를 위해서 실계통에서 발생되는 외란을 모의할 수 있는 외란발생장치 등 시험설비와 전력품질 향상기기 및 실증시험설비를 제어하는 S/W와 시험결과를 분석하기 위한 전력품질 측정 및 분석시스템을 구축하였다. 순간전압강하, 순간전압 상승 파형을 외란발생장치를 구현하고 전력품질 향상기기의 보강효과를 분석하였다. 또한 전력품질 향상기기(DVR, DSTATCOM, SSTS)와 부하 등 시험설비에 대하여 EMTDC 프로그램용 모델 및 해석기법을 개발하였다.

• Korean Journal of Construction Engineering and Management
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• v.9 no.6
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• pp.156-163
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• 2008

Recently, Construction market is contracted by economic slump and regulation. As the solution of this plan, construction productivity is gathering strength. However, the study on the productivity in construction section is insufficient until now. Construction section has many factor about productivity. The point of this study, we analysis the factor of construction productivity improvement and relationship with system thinking. And we show the strategy of construction productivity improvement.