• 한국진공학회:학술대회논문집
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• 한국진공학회 2009년도 제38회 동계학술대회 초록집
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• pp.137-137
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• 2010

Copper electroplating is a very popular and important technology for depositing high-quality conductor interconnections, especially in through silicon via (TSV). As this advanced packaging technique developing, a mass of copper and chemical solution are used, so attention to these chemical materials into the utilization and costs can not be ignored. An economical and practical real-time chemical solution monitoring has not been achieved yet. Either Red-green-blue (RGB) or optical emission spectroscopy (OES) color sensor can successfully monitor the color condition of solution during the process. The reaction rate, uniformity and quality can map onto the color changing. Hidden Semi Markov model (HSMM) can establish mapping from the color change to upper indicators, and artificial neural network (ANN) can be integrated to comprehensively determine its targets, whether the solution inside the container can continue to use.

• 한국식물병리학회:학술대회논문집
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• 한국식물병리학회 2005년도 한국식물병리학회 임시총회 및 춘계학술발표회
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• pp.44-44
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• 2005

• Journal of the Korean Wood Science and Technology
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• 제39권6호
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• pp.481-489
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• 2011

본 연구에서는 소나무와 낙엽송 스킨팀버의 ACQ-2, CUAZ-2, CuHDO-1 가압처리 특성을 평가하기 위해 소나무 변재부와 낙엽송 심재부 시험편을 대상으로 처리용 목재의 함수율이 방부제 처리도에 미치는 영향과 방부제 유효성분인 구리의 처리목재 내 정착 특성을 조사하였다. 본 연구 결과에 의하면 소나무 변재부는 방부제 종류에 관계없이 함수율 30%부터 사용환경 범주 H3용 처리목재의 침윤도와 흡수량 기준을 모두 만족하였다. 완벽한 방부제 침투가 가능한 소나무 변재부에서 깊이에 따른 방부제 흡수량 경사를 조사한 결과, 방부제 종류에 따른 차이가 관찰되었다. CuHDO-1 처리 시험편에서 발생한 경사가 ACQ-2와 CUAZ-2 처리 시험편에서의 경사보다 심했는데, 특히 고함수율(25, 30%) 시험편에서 경사가 저함수율(15, 20%) 시험편에서보다 심함을 알 수 있었다. 그러나 난주입성인 낙엽송 심재부는 처리용 목재의 함수율 조건 및 방부제 종류에 관계없이 처리도 가 매우 불량하였다. 낙엽송 심재부의 처리도 개선을 위해 증기 전처리($121^{\circ}C$의 포화수증기 조건에서 12시간 처리)를 실시한 결과, 낙엽송 심재부의 침윤도와 흡수량 모두 사용환경 범주 H3용 처리목재 기준에 부합하게 처리도가 개선됨을 확인할 수 있었다. 소나무 변재부와 낙엽송 심재부 시험편에서 공히 방부제 유효성분인 구리의 정착이 비건조 양생에 비하여 건조 양생에서 빨리 진행되었다. 소나무 변재부는 양생 초기 3~6일, 낙엽송 심재부는 양생 1일 이내에 3주간 정착된 구리 양의 95% 이상이 정착되었다. 양생 3주 후 처리목재 내에 미정착 상태로 남아있는 구리의 양은 ACQ-2, CuHDO-1, CUAZ-2 순으로 많았는데, 이는 처리용 작업액에 존재하는 구리의 양과 비례하였다.

• 한국어병학회지
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• 제27권1호
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• pp.57-65
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• 2014

구리 ($CuSO_4$)는 양식현장에서 부착 및 병원생물 억제 용도로 광범위하게 사용되고 있으나, 구리의 독성은 그 물질의 농도뿐만 아니라 수온에 의해서도 영향을 받는다. 본 연구에서는 조피볼락, Sebastes schlegeli에서 수온변화 (18, 23 및 $28^{\circ}C$)에 따른 구리의 독성을 혈액 및 혈청학적 요소로 평가하였다. 4일 동안 구리 (100 및 $200{\mu}g/L$)에 노출 시킨 후, 조사한 적혈구 수와 hematocrit 수치는 $28^{\circ}C$에서 유의한 상승을 보였고, total protein 농도는 온도가 증가함에 따라 glucose 농도와 함께 증가하는 경향을 보였다 (P<0.05). 그러나, 혈청 Ca와 Mg은 수온변화와 무관하게, $200{\mu}g/L$ 구간에서 유의한 증가를 보였다. ALT와 LDH와 같은 혈청 효소농도도 구리를 처리한 구간에서만 유의한 상승을 보였다. 이 결과는 혈청 무기 성분과 효소활성이 구리 노출에 따른 민감한 지표가 될 수 있음을 시사한다. 구리 (100 및 $200{\mu}g/L$)에 노출된 조피볼락의 혈청 cortisol 수치는 농도 및 수온 증가에 따라 현저한 증가를 보였다. 즉, 이러한 변화는 수온 스트레스에 대한 초기 반응이 구리노출에 따라 지속되었음을 의미한다. 결론적으로, 구리에 단독으로 노출되었을 때보다 수온 상승이 동반되었을 때, 혈액 및 혈청 유기성분 및 cortisol의 변동이 더욱 가속된 것으로 보인다.

• The Plant Pathology Journal
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• 제17권5호
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• pp.249-256
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• 2001

Xanthomonas axonopodis pv. glycines 8ra produces a bacteriocin called glycinecinA, which specifically inhibits the growth of bacteria belonging to Xanthomonas species. GlycinecinA was produced by culturing Escherichia coli DH5 containing biosynthetic genes for glycinecinA, and was tested for its control effect against X. vesicatoria on red pepper and X. oryzae pv. oryzae on rice. The bacteriocin activity was much higher in the cell extract than in the supernatant. It reached a maximum level at the stationary phase, ws maintained up to 2 months at room temperature and approximately 10 months at $4^{\circ}$. The optimum concentration of glycinecinA for the control in the greenhouse and in the field was 12,800 AU/ml. In this study, the activity of glycinecinA on rice and red pepper leaves continued for 7-8 days, during which the pathogen populations remained at low levels. Bacterial leaf spot of red pepper and bacterial leaf blight of rice were significantly reduced by the bacteriocin treatments. The control efficacy was as high as, or even higher than, the chemical treatment of copper hydroxide. These results suggest that the bacteriocin is a potential control agent for bacterial diseases.

• 한국수산과학회지
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• 제54권6호
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• pp.954-964
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• 2021

Mirror carp Cyprinus carpio nudus (weight 42.0±3.8 g, length 14.3±0.4 cm) were exposed to different concentrations of waterborne copper (0, 100, 200, 400, 800, and 1,600 ㎍ Cu²⁺·L^-1) at 20.3℃ for 96 h. The lethal concentration 50 of waterborne copper was 1,176.45 ㎍ Cu²⁺·L^-1. Among hematological parameters, red blood cell count was significantly decreased, whereas there were no significant changes in the hemoglobin concentration and hematocrit value. Among the inorganic plasma components, calcium was significantly decreased following copper exposure. Conversely, organic plasma components such as glucose and total protein were significantly increased. Similarly, enzymatic components, such as aspartate transaminase, alanine transaminase, and alkaline phosphatase, were also significantly increased. These findings suggest that the copper exposure is detrimental to the survival rates and physiology of C. carpio nudus.

• 한국농업기계학회:학술대회논문집
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• 한국농업기계학회 1996년도 International Conference on Agricultural Machinery Engineering Proceedings
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• pp.937-946
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• 1996

A Far Infrared Ray (FIR) dryer was designed , constructed and tested for red pepper , lycium chinese, and mushroom (Cortiellus shiitake ) drying , and the results were compared to the heated air dryer at the same condition. In the FIR dryer, three different panel materials , galvanized, copper and stainless steel, were used and no ceramic coating and those with ceramic coating (three panels) were 58% , 56%, 64%, and 88% , respectively. The drying times of lycium chinese and mushroom were shortened in FIR dryer by 6 hrs and 4 hrs compared to the heated air drying, respectively. while to remarkable difference in the drying times was found in the red pepper drying . The quality of products was better in FIR dryer where more red color value for red pepper and lycium chinese and more brightness for mushroom . The drying performance of a FIR dryer was superior in terms of total cost of 80,800 WON /100kg of lycium chinese , reduced by 25% compared to the heated air drying.

• Journal of Microbiology and Biotechnology
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• 제25권4호
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• pp.503-510
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• 2015

The iLOV protein belongs to a family of blue-light photoreceptor proteins containing a light-oxygen-voltage sensing domain with a noncovalently bound flavin mononucleotide (FMN) as its chromophore. Owing to advantages such as its small size, oxygen-independent nature, and pH stability, iLOV is an ideal candidate over other reporter fluorescent proteins such as GFP and DsRed. Here, for the first time, we describe the feasibility of applying LOV domain-based fluorescent iLOV as a metal sensor by measuring the fluorescence quenching of a protein with respect to the concentration of metal ions. In the present study, we demonstrated the inherent copper sensing property of the iLOV protein and identified the possible amino acids responsible for metal binding. The fluorescence quenching upon exposure to Cu²⁺ was highly sensitive and exhibited reversibility upon the addition of the metal chelator EDTA. The copper binding constant was found to be 4.72 ± 0.84 µM. In addition, Cu²⁺-bound iLOV showed high fluorescence quenching at near physiological pH. Further computational analysis yielded a better insight into understanding the possible amino acids responsible for Cu²⁺ binding with the iLOV protein.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2002년도 하계학술대회 논문집 Vol.3 No.2
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• pp.1026-1029
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• 2002

We report the electric properties of organic light emitting diodes (OLEDs) by controlling the carrier density according to the crystalline of copper(II) phthalocyanine(CuPc) and the irradiation light intensity. OLEDs were constructed with indium tin oxaide (ITO)/CuPc/triphenyl-diamin (TPD)/tris-(8-hydroxyquinoline)aluminum (Alq3)/Al. The transport properties of OLEDs were changedby the heat-treatments of CuPc. The irradiation of red and blue light exciting CuPc, TPD and Alq3. And then we observed the carrier density of OLEDs.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2002년도 춘계학술대회 논문집 디스플레이 광소자 분야
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• pp.77-80
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• 2002

In order to enhence the photocurrent multiplication process, we controlled the irradiation light and the material of cathode layer of organic light emitting diodes (OLEDs). The structures of OLEDs were indium tin oxaide (ITO)/ copper(II) phthalocyanine (CuPc)/triphenyl-diamine (TPD)/ tris-(8-hydroxyquinoline)aluminum (Alq3)/ aluminum (Al). We found that OLEDs were changed by the photocurrent and free charge carrier multiplication process due to the irradiation of light. The rate of photocurrent was increased by the irradiation of red and blue light.