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Chen, Ye-Qing,Yang, Guo-Tao,Luo, Jian-Yi,Yang, Ying-Shu,Zeng, Qing-Guang,Jeong, Jung Hyun American Scientific Publishers 2016 Journal of Nanoscience and Nanotechnology Vol.16 No.4
<P>Metal tungstates, expressed by the general formula of MWO4, have important properties and applications in photoluminescence, microwave applications, optical fibers, scintillator materials, humidity sensors, magnetic properties, and catalysts. In this paper, we report a successful synthesis of CaWO4: Eu3+ crystals with various morphologies in mild hydrothermal conditions with surfacntant including sodium citrate, CTAB, PEG and citrate acid (CA). The formation of the crystals are strongly dependent on the employment of surfactant. The surfactant concentration has been found significant influence in the resulting morphologies due to different properties of each one. Extensive characterization have been performed by using X-ray diffraction (XRD), field emission scanning electron microscope (FE-SEM) in search of the formation mechanism of multi-morphological CaWO4: Eu3+ crystals. The growth mechanism of monodispersed CaWO4: Eu3+ crystal are proposed. And the photoluminescence properties were investigated.</P>
11-Methoxyviburtinal, A New Iridoid from Valeriana jatamansi
Ye-Gao Chen,Li-Li Yu,Rong Huang,Yu-Ping Lv,Shi-Hong Gui 대한약학회 2005 Archives of Pharmacal Research Vol.28 No.10
Five compounds of iridoids, lignan and phenylpropanoid glycosides were isolated from the roots of Valeriana jatamansi by column chromatography. Their structures were elucidated as 11-methoxyviburtinal (1), baldrinal (2), prinsepiol-4-O-β-D-glucoside (3), coniferin (4), and hexacosanic acid (5) by spectroscopic analysis. 11- Methoxyviburtinal was a new compound, and others were isolated from the plant for the first time.
3’’-Hydroxyamentoflavone and Its 7-O-Methyl Ether, Two New Biflavonoids fromAristolochia contorta
Ye-Gao Chen,Li-Li Yu,Rong Huang,Jia-Chuan Liu,Yu-Ping Lv,Yong Zhao 대한약학회 2005 Archives of Pharmacal Research Vol.28 No.11
Two new biflavonoids, 3’’-hydroxyamentoflavone-7-O-methyl ether (1) and 3’’-hydroxyamentoflavone (2), were isolated from the fruits of Aristolochia contorta Bge. Their structures were elucidated by HR-ESI-MS, 1D-, and 2D-NMR spectroscopy.
Long noncoding RNA atlas of the inflammation caused by asthma in mice
Ye Chen,Shou‑di He,Xiao‑dong Li,Zhi‑li Hu,Chao Zhang,Feng Xu 대한약학회 2020 Archives of Pharmacal Research Vol.43 No.4
There is little evidence regarding the roles oflong noncoding RNAs (lncRNAs) in inflammation caused byasthma. In this study, we successfully generated an asthmamouse model that was induced by ovalbumin (OVA). Theeffects of dexamethasone (Dex) treatment on lung tissuewere investigated using pathological and biochemicalmethods, including Diff-Quik staining, enzyme-linkedimmunosorbent assay (ELISA), hematoxylin–eosin (H&E)staining, and western blotting (WB). The inflammation waseffectively relieved with Dex treatment. High-throughputsequencing revealed that a total of 1490 lncRNAs were detected in lung tissue samples. Differential expressionanalysis revealed that the Dex group had 20 upregulatedand 15 downregulated lncRNAs compared with those inthe Model group. Moreover, nine differentially expressedand inflammation-related lncRNAs were verified by quantitativereal-time reverse transcription polymerase chainreaction (qRT-PCR). Furthermore, the regulation networksof these nine lncRNAs, their potential binding microRNA(miRNAs), and the putative target genes showed that theselncRNAs play important roles in the nuclear factor kappalight-chain-enhancer of activated B cells (NF-κB) signalingpathway. We further identified the expression levels of threepotential binding miRNAs by qRT-PCR. The results of thisstudy contribute to a better understanding of the functionsof lncRNAs in inflammation caused by asthma.
Chen Ye,Zhen Yu,Wan Jili,Yin Xia,Li Siqi,Liu Jiayin,Zhang Guodong,Mi Tiezhu 한국미생물학회 2022 The journal of microbiology Vol.60 No.8
The differences in methanogen abundance and community composition were investigated between nearshore and offshore sediments in the South Yellow Sea (SYS). Shannon, Simpson, and Chao1 indices revealed a higher diversity of methanogens in the nearshore sediments than in the offshore sediments. The Mann–Whitney U test demonstrated that the relative abundance of Methanococcoides was significantly higher in the offshore sediments, while the relative abundances of Methanogenium, Methanosarcina, Methanosaeta, Methanolinea, and Methanomassiliicoccus were significantly higher in the nearshore sediments (P < 0.05). The abundance of the mcrA gene in the nearshore sediments was significantly higher than that in the offshore sediments. Furthermore, a similar vertical distribution of the methanogen and sulfatereducing bacteria (SRB) abundances was observed in the SYS sediments, implying there is potential cooperation between these two functional microbes in this environment. Finally, total organic carbon (TOC) was significantly correlated with methanogen community composition.
WSNs Performance Evaluation Using Non-equilibrium Statistical Mechanics Method
Chen Ye 보안공학연구지원센터 2014 International Journal of Future Generation Communi Vol.7 No.6
In recent years, with the further development and more applications emerging, WSNs is no longer confined to the traditional area. Because WSNs is dynamic, distribution, resource constrained, uncertainty, complexity and heterogeneity, meanwhile distinct WSNs applications have distinct characteristics and requirements in the respective field, which both urge us to further research, especially performance evaluation of WSNs. In this paper, we expand the range of performance index which exceeds time delay, packet loss rate, and throughput. Meanwhile, put forward a non-equilibrium statistical mechanics model for integrated WSNs performance evaluation from an evolutionary perspective. A non-linear information dynamics mode is introduced based on the maximum flux principle during the modeling process. The integrated performance evaluation of WSNs can be done by giving reasonable weights of each evaluation index to stabilize the system. The new model reveals the formation pattern and the dynamics law of evolution. The proposed method has been serviced in complex simulation, and the results have indicated that the model is objective and effective.