http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : 양창희(Chang Hee Yang) (검색결과 5 건)
- 무료
- 기관 내 무료
- 유료
-
CNN기초로 세 가지 방법을 이용한 감정 표정 비교분석
양창희,박규섭,김영섭,이용환,Yang, Chang Hee,Park, Kyu Sub,Kim, Young Seop,Lee, Yong Hwan 한국반도체디스플레이기술학회 2020 반도체디스플레이기술학회지 Vol.19 No.4
CNN's technologies that represent emotional detection include primitive CNN algorithms, deployment normalization, and drop-off. We present the methods and data of the three experiments in this paper. The training database and the test database are set up differently. The first experiment is to extract emotions using Batch Normalization, which complemented the shortcomings of distribution. The second experiment is to extract emotions using Dropout, which is used for rapid computation. The third experiment uses CNN using convolution and maxpooling. All three results show a low detection rate, To supplement these problems, We will develop a deep learning algorithm using feature extraction method specialized in image processing field.
-
색공간과 딥러닝 기술인 MLPs, GCN을 이용한 피부 검출에 대한 연구
양창희(Chang-Hee Yang),김영섭(Young Seop Kim) 대한전자공학회 2021 대한전자공학회 학술대회 Vol.2021 No.6
Skin detection in computer vision is used in various fields. Many studies have been conducted to detect skin. We studied skin detection in three ways. The first is that the range of YCbCr is allocated separately. The second is the application of the MLPs model. The last is the application of the GCN model. MLPs are chosen as the best model on the SFA dataset. However, in general images, GCN has overwhelmingly good results. This is because information acquisition of surrounding pixels exists.
-
염소계 탄화수소의 열촉매 분해와 황화합물에 의한 촉매독 영향 평가
조완근(Wan Kuen Jo),신승호(Seung Ho Shin),양창희(Chang Hee Yang),김모근(Mo Geun Kim) 大韓環境工學會 2007 대한환경공학회지 Vol.29 No.5
다양한 산업체에서 배출되는 독성오염물질들을 제어하는 기존의 기술이 안고 있는 일부 단점을 보완하기 위하여 전이금속 지지체로 구성된 스테인레스스틸-백금 촉매를 이용하는 열촉매 시스템을 구축하고 다섯 가지의 염소계 탄화수소[chlorobenzene(CHB), chloroform(CHF), perchloroethylene(PCE), 1,1,1-trichloroethane(TCEthane), trichloroethylene(TCE)]의 열촉매 분해효율을 평가하기 위해서 본 연구가 수행되었다. 또한, 본 연구는 촉매독이 열촉매 분해 효율에 미치는 영향을 평가하였다. 열촉매 시스템의 주요 세 가지 운전인자인 유입농도, 소각 온도 및 촉매시스템내 체류시간이 본 연구에서 고려되었다. 유입농도가 증가함에 따라 염소계탄화수소의 분해효율이 최대 100%에서 오염물질의 종류에 따라 최저 0%(CHB) 가까이로 감소하는 것으로 나타났다. TCEthane을 제외한 네 가지 염소계탄화수소의 분해효율은 온도 증가에 따라 100% 가까게 나타났으나, TCEthane의 분해효율은 온도가 증가해도 거의 변화가 없는 것으로 나타났다. TCEthane을 제외한 조사대상물질에 대하여 촉매시스템내의 체류시간이 10초에서 60초로 증가시 오염물질에 따라 30%에서 97%까지 점진적으로 증가하는 경향을 나타내었지만, TCEthane은 체류시간 30초에서 분해효율이 더 이상 증가하지 않았다. 이러한 결과는 체류시간 길이가 항상 분해효율과 비례하는 것이 아님을 제안한다. 결론적으로, 본 연구 결과는 염소계 탄화수소를 보다 고효율로 제어하기 위해서 전이금속 촉매시스템을 적용할 경우에 유입농도, 반응온도, 그리고 촉매시스템내 체류시간과 더불어 제어하고자하는 오염물질의 종류도 함께 고려되어야 할 것을 제안한다. 한편으로, 황화메틸 1.0 ppm을 첨가함으로서 조사대상오염물질의 분해효율이 0∼50%로 감소하는 결과가 나타났지만, 일반적으로 산업 배기가스에서 측정되는 황화합물의 오염도 수준보다 다소 낮은 농도에 해당하는 황화메틸 0.1 ppm을 오염물질에 첨가하였을 때는 오염물질의 분해효율에 영향이 나타나지 않았다. To overcome certain disadvantages of past typical control techniques for toxic contaminants emitted from various industrial processes, the current study was conducted to establish a thermal catalytic system using mesh-type transition-metal platinum(Pt)/stainless steel(SS) catalyst and to evaluate catalytic thermal destruction of five chlorinated hydrocarbons[chlorobenzene(CHB), chloroform(CHF), perchloroethylene(PCE), 1,1,1-trichloroethane(TCEthane), trichloroethylene(TCE)]. In addition, this study evaluated the catalyst poison effect on the catalytic thermal destruction. Three operating parameters tested for the thermal catalyst system included the inlet concentrations, the incineration temperature, and the residence time in the catalyst system. The thermal decomposition efficiency decreased from the highest value of 100% to the lowest value of almost 0%(CHB) as the input concentration increased, depending upon the type of chlorinated compounds. The destruction efficiencies of the four target compounds, except for TCEthane, increased upto almost 100% as the reaction temperature increased, whereas the destruction efficiency for TCEthane did not significantly vary. For the target compounds except for TCEthane, the catalytic destruction efficiencies increased up to 30% to 97% as the residence time increased from 10 sec to 60 sec, but the increase of destruction efficiency for TCEthane stopped at the residence time of 30 sec, suggesting that long residence times are not always proper for thermal destruction of VOCs, when considering the destruction efficiency and operation costs of thermal catalytic system together. Conclusively, the current findings suggest that when applying the transition-metal catalyst for the better destruction of chlorinated hydrocarbons, VOC type should be considered, along with their inlet concentrations, and reaction temperature and residence time in catalytic system. Meanwhile, the addition of high methyl sulfide(1.8 ppm) caused a drop of 0 to 50% in the removal efficiencies of the target compounds, whereas the addition of low methyl sulfide (0.1 ppm), which is lower than the concentrations of sulfur compounds measured in typical industrial emissions, did not cause.
-
濟州道 玄武岩 碎石組骨材를 使用한 콘크리트의 强度에 관한 實驗的 硏究
서일교,양창희 제주대학교 산업기술연구소 1999 尖端技術硏究所論文集 Vol.10 No.2
There are many factors to influence on the physical properties of the concrete, such as the size and shape of aggregates, W/C ratio and the strength of cement, etc. Cheju island is regionally volcanic island. The coarse aggregates to be generally utilized for producing the concrete in Cheju island are the crushed ones of basalt. However, the aggregates are locally different chemical and physical properties and these differences show different properties of concrete. In this study, we investigated the properties of concrete by the utilization of crushed aggregates from two places, Sangchang and Sangga in Cheju island through the test of compressive, tensile, and flexural strength with curing time.
-
제주도 현무암 쇄석조골재를 사용한 콘크리트의 강도에 관한 실험적 연구
서일교,양창희 濟州大學校 産業技術硏究所 1999 산업기술연구소논문집 Vol.10 No.2
There are many factors to influence on the physical properties of the concrete. such as the size and shape of aggregates, W/C ratio and the strength of cement, etc. Cheju island is regionally volcanic island. The coarse aggregates to be generally utilized for producing the concrete in Cheju island are the crushed ones of basalt. However, the aggregates are locally different chemical and physical properties and these differences show different properties of concrete. In this study, we investigated the properties of concrete by the utilization of crushed aggregates from two places. Sangchang and Sangga in Cheju island through the test of compressive. tensile. and flexural strength with curing time.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
