http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Solution processed bilayer solar cells with improved P3HT/PCBM interfaces
박한옥,( Swapnil B. Ambade ),이수형 한국공업화학회 2015 한국공업화학회 연구논문 초록집 Vol.2015 No.0
In the organic solar cells, the bilayer or quasi-vertical phase separated structure has been suggested as one of the prominent approaches that can improve the device performance. The control of p/n interface in bilayer structure is very important to achieve large area for effective charge generation. In this work, we have focused on improving the p/n interface area by meticulously controlling surface roughness of P3HT layer in the bilayer structure comprising P3HT donor and PCBM acceptor(P3HT/PCBM). The modified P3HT layer, which has more rough surface area, could be achieved by spray-printing from P3HT solution with different solvents. The device with modified P3HT layer leads to~10% enhancement in the device performance due to the improved p/n interfaces, absorption and charge mobility as compared to that of the pristine P3HT layer.
아메리카왕거저리의 산란수, 사육밀도에 따른 증체량, 용화틀에서의 용화율 조사
박영규,한옥순,강승호,박종관 한국응용곤충학회 2014 한국응용곤충학회 학술대회논문집 Vol.2014 No.10
아메리카왕거저리(Zopobas atratus) 성충 410.5 ± 89.0개체를 넣은 사육상자에 서의 1주일간 평균 산란된 부화유충수는 4,658.5 ± 559.3 (mean ± SD)개체로 암컷 의 1일 산란수는 3.24 ± 1.80개 (mean ± SD)이었다. 부화 후 1개월간 발육하여 개체 당 평균 체중이 0.255g인 유충 1500, 1000, 500, 100개체를 사육상자에서 11주간 사육한 후 각각의 사육상자에서 개체수는 1,271 ± 36.1, 895.3 ± 72.2, 554.0 ± 13.5, 103.0 ± 11.3 (mean ± SD)개체이었다. 11주간 사육기간중 각각의 유충 사육상자에 서 사육기간 중 사망한 개체는 발견하지 못하였고 종령유충의 중량은 각각의 사육 상에서 0.96 ~ 0.97 g으로 유사하였다. 종령유충의 용화율은 용화틀 체적이 34.8 cm3, 58.5 cm3, 124.1 cm3일때 용화틀 투입 20일차까지 평균 87.5 ~ 88.9%로 차이 없게 조사되었다. 용화기간은 용화틀의 크기와 관계없이 1주일까지 65.6 ~ 67.9% 용화하였다.
만성 폐쇄성 폐질환 환자에서 Roflumilast 약물 사용 평가
박유경,위완주,한영현,한옥연,나현오 한국병원약사회 2015 病院藥師會誌 Vol.32 No.4
Background : Roflumilast is a selective phosphodiesterase (PDE)-4 inhibitor approved for treatment of severe chronic obstructive pulmonary disease (COPD) associated with chronic bronchitis and patients with a history of exacerbation. It improves lung function and reduces the frequency of exacerbation in patients with severe COPD. However, high rates of adverse events such as diarrhea and nausea have been reported in clinical trials. The purpose of this study was to investigate the pattern of roflumilast usage, tolerability, and adverse events in clinical practice. Methods : We retrospectively analyzed the medical records of patients who received roflumilast between December 2012 and September 2013. Results : Roflumilast was prescribed for 88 COPD patients. Initially, 49 patients (55.7%) received 500 mcg and 39 patients (44.3%) received 250 mcg once daily. For 64 patients, roflumilast was prescribed for maintenance of severe COPD (post-bronchodilation forced expiratory volume (FEV1) ≤50%), which is associated with chronic bronchitis in adult patients with a history of exacerbations as an add-on to bronchodilator treatment. Roflumilast-related adverse events were observed in 47.73% (40/88) of the overall population (62 cases). The most common adverse events were gastrointestinal issues, including diarrhea, nausea, GI trouble, and decrease in appetite. Other adverse events included weight loss, skin reactions, headaches, and insomnia. Only 38 patients (43.18%) completed 1 year of roflumilast therapy and treatment discontinuation occurred in 50 patients (56.82%). Adverse events are the leading cause of treatment discontinuation. Conclusions : Roflumilast, in conjunction with standard therapy, caused more adverse events than has previously been reported. The long-term safety and efficacy of roflumilast has not been evaluated fully, and serious adverse events should be closely monitored.
4 M KOH 수용액 및 에탄올 용액에서 알루미늄 공기 전지용 Al-(Ga, Sn, Mn)합금 음극의 부식 특성
이한옥 ( Han Ok Lee ),박찬진 ( Chan Jin Park ),장희진 ( Hee Jin Jang ) 한국부식방식학회 2011 Corrosion Science and Technology Vol.10 No.2
Corrosion properties of Al-0.3Ga-0.3Sn, Al-0.3Mn-0.3Ga, and Al-0.3Mn-0.3Sn alloys were examined to develop an anode material for Al-air battery with alkaline aqueous or ethanol electrolyte. The results of potentiodynamic polarization tests showed that the electrode potential of the Al alloys were lower than the pure Al, implying the cell voltage can be increased by using one of these alloys for an anode in 4 M KOH aqueous solution. The corrosion rate appeared to be increased by alloying Ga but to be reduced by Sn and Mn in the aqueous solution. The ethanol solution is expected to improve the cell performance in that the electrode potential and the corrosion rate of Al were lower in ethanol solution than in aqueous solution. However the Al-(Ga, Sn, Mn) alloys are not favorable in ethanol solution because of the high potential and corrosion rate.
High efficiency inorganic/polymer hybrid solar cells with interfacial modifications
엄승훈,박한옥,양선남,이수형 한국공업화학회 2015 한국공업화학회 연구논문 초록집 Vol.2015 No.1
The inserting of an interfacial modifier between the inorganic and organic interface is an effective approach to improve electric characteristics and non-ideal interfacial contact in polymer/inorganic hybrid solar cells (HSCs). We synthesized different interfacial modifiers (IMs) with different functionality and energy levels following the “donoracceptor” design concept. These IMs were used to modify the interfaces of ZnO and photoactive polymer in HSCs. The surface modification of ZnO with IMs exhibited enhanced solar cell performance when compared to the unmodified devices. These results demonstrate that modified ZnO with IMs has three most beneficial functions of reducing the number of defect sites and traps on the ZnO surface, facilitating the charge carriers by controlled work function of ZnO and increasing the compatibility of hydrophilic ZnO with the polymer layer.