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Design of Remote Monitoring and Evaluation System for UPS Battery Performance
Chunjie Hou,Jiabin Wang,Chun Gao 보안공학연구지원센터 2016 International Journal of u- and e- Service, Scienc Vol.9 No.5
For the case of each unit battery status parameter of UPS is unpredictable, this paper develops a remote monitoring system, through the connection of local monitoring software and remote monitoring software, interacting database and human-computer to complete this system. Practice has proved that this system can secure stable operation and better meet the requirements of the UPS battery remote monitoring technology.
( Xianchao Qin ),( Chunjie Li ),( Yueshu Gao ),( Zhenjia Zhang ),( Xiaojun Zhang ) 한국미생물생명공학회(구 한국산업미생물학회) 2019 Journal of microbiology and biotechnology Vol.29 No.4
An advanced anaerobic expanded granular sludge bed (AnaEG) and an internal circulation (IC) reactor, which were adopted to treat starch processing wastewater (SPW) and ethanol processing wastewater (EPW), were comprehensively analyzed to determine the key factors that affected the granules and microbial communities in the bioreactors. The granule size of 900 μm in the AnaEG reactor was smaller than that in the IC reactor, and the internal and external morphological structures of the granular sludge were also significantly different between the two types of reactors. The biodiversity, which was higher in the AnaEG reactor, was mainly affected by reactor type. However, the specific microbial community structure was determined by the type of wastewater. Furthermore, the dominant methanogens of EPW were mainly Methanosaeta and Methanobacterium, but only Methanosaeta was a major constituent in SPW. Compared with the IC reactor, characteristics common to the AnaEG reactor were smaller granules, higher biodiversity and larger proportion of unknown species. The comparison of characteristics between these two reactors not only aids in understanding the novel AnaEG reactor type, but also elucidates the effects of reactor type and wastewater type on the microbial community and sludge structure. This information would be helpful in the application of the novel AnaEG reactor.
Transformation of framework solids into processable metallo-polymers
Choi, Eun-Young,Gao, Chunji,Lee, Hong-Jun,Kwon, O-Pil,Lee, Suck-Hyun The Royal Society of Chemistry 2009 Chemical communications Vol.2009 No.48
<p>A novel design strategy that extends metal–organic frameworks (MOFs) into tractable metallo-polymers was successfully explored by incorporating a homologous series of alkyl side chains to an organic linker, in which drastic solid to solid transformation is also observed.</p> <P>Graphic Abstract</P><P>A novel design strategy that extends the metal–organic frameworks into tractable metallo-polymers was explored by incorporating a series of alkyl side chains to an organic linker, in which drastic solid to solid transformation is observed. <img src='http://pubs.rsc.org/ej/CC/2009/b916092b/b916092b-ga.gif'> </P>
Choi, Eun-Young,Lee, Hong-Jun,Gao, Chunji,Kwon, O-Pil,Lee, Suck-Hyun WILEY-VCH Verlag 2010 Macromolecular Chemistry and Physics Vol.211 No.18
<P>A series of layer-structured zinc-containing metallopolymers were prepared through a solvothermal reaction of zinc acetate with 1,4-benzene dicarboxylic acid derivatives bearing various nonpolar n-alkyl groups as side chains. The resulting metallopolymers were investigated. The reaction time and the length of the alkyl substituents on the backbone have a marked effect on the mesophase structure and thermal behaviors of the metallopolymers. The metallopolymer with tetradecyloxy side chains prepared by solid-to-solid transformations within solvothermal synthesis exhibits a unique mesophasic behavior with melt tractability.</P><P> <img src='wiley_img_2010/10221352-2010-211-18-MACP201000316-gra001.gif' alt='wiley_img_2010/10221352-2010-211-18-MACP201000316-gra001'> </P> <B>Graphic Abstract</B> <P>Novel melt-processable layer-structured metallopolymers (ZnCn-L2) are prepared by an interesting solid-to-solid transformation within the solvothermal method as presented. They were composed of a zinc carboxylate backbone bearing n-alkyl groups as side chains. The reaction time and the alkyl substituents on the backbone had a marked effect on the structure and thermal behavior. <img src='wiley_img_2010/10221352-2010-211-18-MACP201000316-content.gif' alt='wiley_img_2010/10221352-2010-211-18-MACP201000316-content'> </P>
Lee, Yoo Sung,Kim, Man Su,Kim, Young Chul,Lee, Hanil,Gao, Chunji,Ahn, Kwang-Hyun TaylorFrancis 2009 Molecular Crystals and Liquid Crystals Vol.513 No.1
<P> 1,3,5-tris[4'-(1''-phenylbenzimidazol-2''-yl)phenyl]benzene (BTPBB), was synthesized and its electroluminescence (EL) properties were investigated. In order to enhance the emission efficiency, the device structure was optimized by balancing the charge carrier injection and reducing the barrier height for electron transport to the emitting layer. The OLED device with a structure of [ITO/α-NPB (50 nm)/BTPBB (30 nm)/TPBI (10 nm)/Alq3 (20 nm)/LiF (1 nm)/Al (120 nm)] exhibited the luminous efficiency of 2.2 cd/A and the external quantum efficiency of 0.9% at 120 mA/cm2 with the CIE 1931 color coordinates of (0.15, 0.08), which was pure blue and almost invariant within the operating voltage range of 12 ∼ 19.5 V.</P>