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RISS 인기검색어
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- 저자 : Guorong Zhou (검색결과 5 건)
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The influence factors on CeSn0.8W0.6Ox/TiO2 for catalytic removals of NO, CO and C3H8
Guorong Sui,Zhiwei Xue,Dan Zhou,Yan Wang,Yuesong Shen,Yuhao Zong,Youlin Liu,Tai Qiu,Shemin Zhu 한국공업화학회 2017 Journal of Industrial and Engineering Chemistry Vol.51 No.-
Series of CeSn0.8W0.6Ox/TiO2 catalysts were tested for selective catalytic reduction of NO and forsynergistic catalytic removals of CO and C3H8 from diesel engine exhaust. Results revealed that catalyst12%-CeSn0.8W0.6Ox/TiO2 calcined at 500 C exhibited the optimal catalytic performance for NH3-SCR ofNO. The catalyst obtained more than 90% NO conversion at a wide temperature range of 252–456 C. BothCO and C3H8 could be oxidized into CO2 by the optimized catalyst. Moreover, excellent redox property,rich surface acidity and big specific surface area were the promotional factors for good catalyticperformance in catalytic removals of NO, CO and C3H8.
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Zhang, Jinpeng,Zhang, Lichi,Xiang, Lei,Shao, Yeqin,Wu, Guorong,Zhou, Xiaodong,Shen, Dinggang,Wang, Qian Elsevier 2017 Pattern recognition Vol.63 No.-
<P><B>Abstract</B></P> <P>It is fundamentally important to fuse the brain atlas from magnetic resonance (MR) images for many imaging-based studies. Most existing works focus on fusing the atlases from high-quality MR images. However, for low-quality diagnostic images (i.e., with high inter-slice thickness), the problem of atlas fusion has not been addressed yet. In this paper, we intend to fuse the brain atlas from the high-thickness diagnostic MR images that are prevalent for clinical routines. The main idea of our works is to extend the conventional groupwise registration by incorporating a novel super-resolution strategy. The contribution of the proposed super-resolution framework is two-fold. First, each high-thickness subject image is reconstructed to be isotropic by the patch-based sparsity learning. Then, the reconstructed isotropic image is enhanced for better quality through the random-forest-based regression model. In this way, the images obtained by the super-resolution strategy can be fused together by applying the groupwise registration method to construct the required atlas. Our experiments have shown that the proposed framework can effectively solve the problem of atlas fusion from the low-quality brain MR images.</P> <P><B>Highlights</B></P> <P> <UL> <LI> We fuse the brain atlas from real diagnostic MR images with high inter-slice thickness. </LI> <LI> All images are processed through the two-stage learning-based super-resolution. </LI> <LI> Groupwise registration is applied for unbiased atlas fusion. </LI> </UL> </P>
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Effect of Al on the Microstructure and Mechanical Properties of Mg–Sn–Ca–Mn Wrought Alloy
Yun Feng,Yuanyuan Yang,Zongqi Xiao,Xianglong Meng,Guorong Zhou,Jinfeng Leng,Xinying Teng 대한금속·재료학회 2022 METALS AND MATERIALS International Vol.28 No.6
Mg–Sn–Ca–Mn–xAl (x = 0,1.5 wt%) alloys with ultra-fine recrystallized grains were prepared by conventional extrusion(400 °C, 0.5 mm/s). Effects of aluminum (Al) on mechanical properties and microstructure of the Mg–1Sn–1Ca–0.5Mn(wt%) alloy were systematically investigated. By the addition of 1.5 wt% Al, the yield strength of the as-extruded alloysignificantly increased from 183 to 237 MPa. The as-cast alloys show a dendritic structure consists of α-Mg, (Mg, Al)2Ca,and CaMgSn phases. The as-extruded Mg–1Sn–1Ca–0.5Mn–1.5Al alloys exhibit a bimodal grain structure composed ofdynamic recrystallized (DRXed) fine grains and coarse unDRXed grains. Compared with Al free alloy, a lot of nano-scaleplanar Al2Caand rectangle shape Al8Mn5precipitated in the as-extruded alloy with 1.5 wt% Al. Meanwhile, the addition ofAl significantly strengthened alloys’ fiber texture with < 10–10 >//ED.
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Song Sa,Pan Jian,Zhang Yaoyao,Xu Yuehuan,Zhang Qingmei,Xie Xiaoxun,Zhou Qingniao,Mo Farong,Luo Guorong,Chao Naixia 한국유전학회 2023 Genes & Genomics Vol.45 No.1
Background Hepatocellular carcinoma (HCC) is the most common primary liver malignancy with a high mortality rate. P14.5 is a member of the highly conserved YER057c/YIL051c/YjgF subfamily and is highly expressed in the liver. However, its low expression is associated with carcinogenesis in HCC. Objective This study aimed to investigate the role and prognostic significance of P14.5 in HCC. Methods The clinical significance of P14.5 in HCC was examined using ONCOMINE, UALCAN, Human Protein Atlas, and Kaplan–Meier plotter. The DNA methylation profile of the P14.5 promoter was examined in 103 HCC and paired precancerous tissues; the HCC cell lines HepG2, MHCC-97L, SMMC-7721, SK-Hep-1, and Huh7; and the normal hepatic cell line HL-7702 via MALDI-TOF mass spectrometry. In addition, in vitro experiments were performed to examine the effects of P14.5 overexpression on the proliferation and migration of SMMC-7721 cells. Results Low expression of P14.5 was correlated with shorter overall survival (OS) and disease-free survival (DFS) in HCC. Based on the results of MALDI-TOF mass spectrometry, no difference was observed in the methylation level between HCC cells and normal human hepatic cells and between HCC and paired precancerous tissues. Additionally, P14.5 overexpression promoted the proliferation and inhibited the migration of SMMC7721 cells in vitro. Conclusions P14.5 may serve as a prognostic biomarker in HCC and plays a role in the migration and proliferation of HCC cells. Low expression of P14.5 during hepatocarcinogenesis is not attributed to DNA methylation.
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Yang, Jianqing,Zhang, Quanhu,Su, Xianghua,Li, Sufen,Zhuang, Lin,Hou, Suxia,Huo, Yonggang,Zhou, Hao,Liu, Guorong Korean Nuclear Society 2020 Nuclear Engineering and Technology Vol.52 No.5
Fast-Neutron Multiplicity Counter based on Liquid Scintillator Detector can directly measure the fast neutron multiplicity emitted by UO<sub>2</sub> rod. HPGe gamma spectrometer; which has superior energy resolution; is routinely used for the gamma energy spectrum measurement. Combing Fast-Neutron Multiplicity Counter and HPGe γ-spectrometer, the n/γ joint measurement system is developed. The fast neutron multiplicity and gamma energy spectrum of UO<sub>2</sub> rod assemblies under different conditions are measured by the n/γ joint measurement system. The induced fission rate and the <sup>235</sup>U abundance, thereby the <sup>235</sup>U mass; can be obtained for UO<sub>2</sub> rod assemblies. The <sup>235</sup>U mass deviation of the measured value from the reference value is less than 5%. The results show that the n/γ joint measurement system is effective and applicable in the measurement of the <sup>235</sup>U mass in samples.
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