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Mu Liu,Yongzhen Peng,Qing Yang,Tiantian Liu, Han Xiao,Shuying Wang 한국공업화학회 2015 Journal of Industrial and Engineering Chemistry Vol.32 No.-
Landfill leachate was treated using the upflow anaerobic sludge blanket (UASB) combined with anoxic/aerobic reactor (A/O) for shortcut biological nitrogen removal. The treatment performance and nitrousoxide (N2O) emission were studied under different salinity. When salinity increased from 10 to 35 g/L,the removal efficiency of ammonium nitrogen and total nitrogen decreased from 99.3 to 83.9% and from85.4 to 68.4%, respectively while the nitrite accumulation rate always remained high at more than 94.3%. The N2O conversion ratio increased by 14.7 times, from 0.3 to 4.7%. The concentration of biodegradableCOD in influent of the A/O reactor increased with the increase of salinity, which lead to the decrease ofdissolved oxygen and thus stimulated N2O emission remarkably during the aerobic zone. Meanwhile, theN2O emissions were likely to occur by a combination of pathways since the simultaneous nitritation anddenitritation was occurred in aerobic zone. The increase of NH4+-N concentration, NO2-N concentrationand pH caused by high salinity also promoted the N2O emission. The population of Nitrosomonaseuropaea increased with salinity, which was important for N2O emission.
Liu Mu Di 한국문화예술경영학회 2019 문화예술경영학연구 Vol.12 No.1
사람들은 일방적인 전파방식에 만족하지 않고 이미 내려진 결론을 수동적으로 받아들이기를 꺼려한다. 사람들의증가하는 요구 중 하나는 전파에 직접 참여하는 것이고 자신의 의견과 생각을 전파 중에 발표하는 것이다. 이런 표현의 욕구는 TV 프로그램에서 시청자들의 참여의식으로 나타났다. 시청자의 강한 참여의식 요구는 직접적인 프로그램의 방송과정에 참여하는 것이다. 이로 인해 TV 프로그램의 일방적 전파방식은 양방향 전파방식으로 바뀌었다. 예능 프로그램 제작팀도 시청자들의 참여의식이 강해지는 것을 의식하기 시작하여 시청자 참여기회를 확대하고있다. 예능 프로그램은 시청자의 요구에 맞춰 다양한 참여 방식을 제공하고, 참여하려는 시청자들의 욕구를 자극하며참여 열기를 높이고 있다. 시청자들의 참여는 예능 프로그램의 발전을 촉진시키고, 시청률을 높이며, 예능 프로그램의 이익을 증가시킨다. 본 논문은 시청자의 실시간 참여를 중점적으로 연구한다. 한중 양국의 비교를 통해 양국 예능프로그램의 시청자가 실시간으로 참여하는 사례를 살펴본다. 예능 프로그램 시청자가 실시간으로 프로그램에 참여하는 과정과 그에 따른 효과를 알아보고자 한다.
Liu Yang,Ce Shi,Xiaoying Mu,Chao Liu,Ke Shi,Wen-jiao Zhu,Qing Yang 한국식물생명공학회 2015 Plant biotechnology reports Vol.9 No.4
Plant P450s play an important role in plant response to environmental stimuli, especially to pathogen challenge, besides leading to the biosynthesis of secondary metabolites. In this work, a Verticillium dahliae-induced cDNA sequence was cloned from wild eggplant Solanum torvum and designated StoCYP77A2. StoCYP77A2 encodes a 511-amino acid peptide that shows sequence homology to the plant CYP77 family. StoCYP77A2 is expressed in a tissue-specific manner with the highest expression level in stem. The expression level of StoCYP77A2 was increased in wild eggplants which were infected with Verticillium dahlia. We expressed StoCYP77A2 in V. dahliae-sensitive tobacco, and the transgenic tobacco plants were more resistant to V. dahliae infection than the wild type. Protein extraction of transgenic tobacco showed strong antifungal activity against V. dahliae, indicating that StoCYP77A2 may be involved in the synthesis of some antimicrobial compounds. These results suggest that StoCYP77A2 plays a role in plant defense to V. dahliae infection.
Chao Liu,Jingwei Lv,Famei Wang,Qiang Liu,Haiwei Mu,Tao Sun,Qiang Liu,Paul K. Chu 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2015 NANO Vol.10 No.8
Multilayered nanoshells have attracted much attention due to their unique optical, electronic and magnetic properties. In this work, numerical calculation using discrete dipole approximation (DDA) is conducted to investigate the quad-layered metal nanoshell consisting of a particle with a dielectric silica (SiO2) core, inner cadium sulfide (CdS) shell, middle indium tin oxide (ITO) shell and outer metal silver (Ag) shell. The phenomenon is interpreted by plasmon hybridization theory and the Ag–ITO–CdS–SiO2 multilayered nanoshells are studied by extinction spectra of localized surface plasmon resonance. The variation in the spectrum peak with nanoparticle thickness and refractive index of the surrounding medium is derived. The electric field enhancement contour around the nanoparticles under illumination is analyzed at the plasmon resonance wavelength. The |ω-->, |ω+->, and |ω-+> modes red-shift with the refractive index of the surrounding medium and increase in the layer thickness causes either blue-shift or red-shift as shown by the extinction spectra. The mechanism of the red-shift or blue-shift is discussed. The |ω--> blue-shifts and furthermore, the |ω-+> and |ω+-> modes of the Ag coated multilayered nanostructure are noticeable by comparing the extinction efficiency spectra of the Au–ITO–CdS–SiO2 and Ag–ITO–CdS–SiO2 multilayered nanoshells.
Analysis of Local Surface Plasmon Resonance in Multilayered Au/Ag/Graphene Nanoshells
Chao Liu,Zhaoting Liu,Jingwei Lv,Tao Sun,Qiang Liu,Haiwei Mu,Paul K. Chu 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2017 NANO Vol.12 No.5
"The localized surface plasmon resonance (LSPR) properties of Au/Ag/graphene nanoshells are studied by discrete dipole approximation (DDA). The coupled resonance wavelengths show a remarkable dependence on the graphene thickness as well as refractive index of the surrounding medium. The resonance wavelengths of Au/Ag/graphene nanoshells red-shift as the thickness of the graphene layer is increased, when the radii of the Au core and Ag interlayer are 40 nm and 45nm, respectively. Specifically, the longer wavelength red-shifts from 540 nm to 740 nm when the refractive index varies from 1.25 to 2.05. "
Localized Surface Plasmon Resonance Properties of Concentric Dual-Ring Nanodisk
Haiwei Mu,Jianxin Wang,Qiang Liu,Wei Liu,Xianli Li,Jingwei Lv,Chao Liu,Famei Wang,Tao Sun,Paul K. Chu 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2019 NANO Vol.14 No.6
The extinction spectral properties based on localized surface plasmon resonance (LSPR) of the concentric dual-ring nanodisk (CDRN) structure are investigated by discrete dipole approximation (DDA) and plasmon hybridization theory. The CDRN nanostructure shows flexible tunable multipole resonances in the near-infrared regime and the coupled resonance wavelengths depend on the structural parameters of the nanostructure, which has great potential in multichannel LSPR-based bio-sensing applications.
Yining Mu,Tuo Zhang,Tianqi Chen,Fanqi Tang,Jikai Yang,Chunyang Liu,Zhangxiaoxiong Chen,Yiming Zhao,Peng Du,Haibo Fan,Yan Zhu,Guozhen Liu,Ping Li 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2020 NANO Vol.15 No.03
In recent years, all inorganic bismuth lead-halide perovskite nanocrystals [CsPbX3 (X=Cl, Br, I)] have received extensive attention due to their high performance in fluorescence quantum yield, narrow emission spectrum, and adjustable emission range. However, the disadvantages of high cost and poor stability have greatly limited the development prospects of the material. Here, in order to develop a perovskite quantum dot lasing cavity with high chemical stability, high quality factor and low fabrication cost, we have successfully fabricated a 3D random cavity device based on porous silicon/TiO2 nanowires. A TiO2 nanowire is grown on the porous silicon to form a 3D resonant cavity, and a perovskite quantum dot is spin-coated on the surface of the 3D resonant cavity to form a novel 3D complex film. The novel structure enhances the chemical stability and lasing quality factor of the resonant cavity while the fluorescence generated by the large quantum dots in the spatial interference structure constitutes the feedback loop, which will provide favorable support for the development of information optics.