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| 1 | Catalytic performance of Zr-doped CuO-CeO2 oxides for CO selective oxidation in H2-rich stream显示文摘Zr-doped CuO-CeO2 catalysts for CO selective oxidation were designed and prepared by the hydrothermal method and coprecipitation. The experimental samples were characterized by means of N2 adsorption-desorption isotherms, powder X-ray diffraction, temperature-programmed reduction and Xray photoelectron spectroscopy. It is observed that the catalyst prepared by hydrothermal method exhibits larger specific surface area, smaller crystalline size and higher dispersion of active components compared with those of the catalyst obtained by coprecipitation. Meanwhile, redox properties of copper oxide are improved significantly and highly dispersed copper species providing CO oxidation sites are present on the surface. Furthermore, adsorptive centers of CO and active oxygen species increase on the copper-ceria interfaces. The Zr-doped CuO-CeO2 catalyst prepared by hydrothermal method possesses superior catalytic activity and selectivity for selective oxidation of CO at low temperature compared with those of the sample prepared by coprecipitation. The temperature corresponding to 50% CO conversion is only 73 ℃ and the temperature span of total CO conversion is expanded from 120 to 160 ℃. | Limin Shi Chuanlei Gao Fenghai Guo Yujing Wang Tiebang Zhang | 2019 | Journal of Rare Earths2019，37，7： | 7 |
| 2 | Vascular endothelial growth factor induced angiogenesis following focal cerebral ischemia/reperfusion injury in rabbits显示文摘BACKGROUND: Therapeutic angiogenesis has opened up new pathway for the treatment of ischemic cerebrovascular disease in recent years. The exploration of the effect of vascular endothelial growth factor (VEGF) on inducing angiogenesis following ischemia/reperfusion injury can provide better help for the long-term treatment of cerebrovascular disease in clinic. OBJECTIVE: To observe the effect of VEGF on inducing angiogenesis following focal cerebral ischemia /reperfusion injury in rabbits through the angiogenesis of microvessels reflected by the expression of the factors of vascular pseudohemophilia.DESIGN: A randomized controlled animal trial.SETTING: Department of Medical Imaging, Second Hospital of Hebei Medical University.MATERIALS: Sixty-five healthy male New Zealand rabbits of clean degree, weighing (2.6±0.2) kg, aged 4.5-5 months, were used. The polyclonal antibody against vascular pseudohemophilia (Beijing Zhongshan Company), recombinant VEGF165 (Peprotech Company, USA), biotinylated second antibody and ABC compound (Wuhan Boster Company) were applied.METHODS: The experiments were carried out in the Laboratory of Neuromolecular Imaging and Neuropathy, Second Hospital of Hebei Medical University from May to August in 2005. ① The rabbits were randomly divided into three groups: sham-operated group (n=15), control group (n=25) and VEGF-treated group (n=25). In the control group and VEGF-treated group, models were established by middle cerebral artery occlusion (MCAO) induced focal cerebral ischemia/reperfusion. In the VEGF-treated group, VEGF165 (2.5 mg/L) was stereotactically injected into the surrounding regions of the infarcted sites immediately after the 2-hour ischemia/reperfusion; Saline of the same dosage was injected in the control group. But the rabbits in the sham-operated group were only drilled but not administrated. ② The experimental indexes were observed on the 3rd, 7th, 14th, 28th and 70th days of the experiment respectively, 3 rabbits in the sham-operated group and 5 in the control group and VEGF-treated group were observed at each time point. The brain tissues in the surrounding regions of the infarcted sites were collected. The positive expressions of the factors of vascular pseudohemophilia in vascular endothelial cells were analyzed with immunohistochemical method. The microvessels in unit statistical field were counted with the imaging analytical software. MAIN OUTCOME MEASURES: The changes of microvascular density in the brain tissue and the positive expressions of the factors of vascular pseudohemophilia in the surrounding regions of the infarcted sites were observed on the 3rd, 7th, 14th, 28th and 70th days of the experiment.RESULTS: All the 65 New Zealand rabbits were involved in the analysis of results without deletion. ① Changes of the number of microvessels at different time points in each group: There were no obvious changes at different time points in the sham-operated group. The numbers of microvessels at 7 and 14 days were obviously more in the control group than in the sham-operated group [(6.0±1.1), (9.0±0.9) microvessels; (3.0±1.1), (3.0±1.1) microvessels; P < 0.05-0.01], and those at 3, 7, 14 and 28 days were obviously more in the VEGF-treated group than in the control group [(8.3±2.0), (13.4±1.4), (15.5±2.3), (6.8±1.0) microvessels; (3.4±0.6), (6.0±1.1), (9.0±0.9), (3.2±0.8) microvessels; P < 0.01]. ② Positive expressions of the factors of vascular pseudohemophilia in the surrounding regions of infarcted sites: There were no obvious changes at different time points in the sham-operated group. In the control group, the changing law of the expressions was the same as that for the number of microvessels that the expression began to mildly increase at 7 days, reached the peak value at 14 days, and began to reduce at 28 days. In the VEGF-treated group, the expression was obviously increased at 3 days, also reached the peak value at 14 days, and reduced to the normal level at 70 days, but the expressions were obviously stronger than those in the control group at the same time points.CONCLUSION: Angiogenesis can be obviously induced in rabbits after the focal cerebral ischemia/reperfusion injury is treated with VEGF for 18 days. | Huaijun Liu Jiping Yang Fenghai Liu Qiang Zhang Hui Li | 2006 | Neural Regeneration Research2006，1，4： | 2 |
| 3 | Formation of dynamic membrane in an anaerobic membrane bioreactor for municipal wastewater treatment显示文摘 | Xinying Zhang Zhiwei Wang Zhichao Wu Fenghai Lu Jun Tong Lili Zang | 2010 | Chemical Engineering Journal2010，，1： | 1 |
| 4 | Prediction methods for preventing single-phase reclosing on permanent fault 显示文摘 | GE Yaozhong SUI Fenghai XIAO Yuan | 1989 | IEEE Trans on Power Delivery1989，4，1： | 1 |
| 5 | Prediction methods for preventing single-phase reclosing on permanent fault显示文摘 | Ge Yaozhong Sui Fenghai Xiao Yuan | 1989 | IEEE Trans on Power Delivery1989，4，1： | 1 |
| 6 | Formation Mechanism of Slag During Fluid-bed Gasification of Lignite显示文摘 | Li Fenghai Huang Jiejie Fang Yitian | 2011 | Energy andFuels2011，25，1： | 1 |
| 7 | Prediction methods for preventing single-phase reclosing on permanent fault 显示文摘 | GE Yaozhong SUI Fenghai XIAO Yuan | 1989 | IEEE Trans on Power Delivery1989，4，1： | 1 |
| 8 | An investigation on tile fusibility characteristicsoflow-rankcoalsandbiomassmixturcs显示文摘 | Li Fenghai Xu Meiling Wang Tao | 2015 | Fuel2015，158，： | 1 |
| 9 | Understanding mineral behaviors during anthracite fluidized-bedgasification based on slag characteristics显示文摘 | Li Fenghai Li Zhenzhu Huang Jiejie | 2014 | Applied Energy2014，131，： | 1 |
| 10 | Prediction methods for preventing single-phase re-closing on permanent fault显示文摘 | Ge Yaozhong Sui Fenghai Xiao Yuan | 1989 | IEEE Trans on Power Delivery1989，4，1： | 1 |
| 11 | Prediction Methods for Preventing Single-Phase Reclosing on Permanent Fault显示文摘 | Sui Fenghai Xiao Yuan | 1989 | IEEE Transactions on Power Delivery1989，4，1： | 1 |
| 12 | Fault component reactance relay显示文摘 | Zhu Shengshi Xin Yibao Sui Fenghai | 1996 | IEEE transactions on Power Delivery1996，11，3： | 1 |
| 13 | Formation mechanism of slag during 'fluid-bed gasification of lignite 显示文摘 | Li Fenghai Huang Jiejie Fang Yitian | 2011 | Energy Fuels2011，25，1： | 1 |
| 14 | Prediction methods for preventing single-phase reclosing on permanent fault显示文摘 | Ge Yaozhong Sui Fenghai Xiao Yuan | 1989 | IEEE Trans on Power Delivery1989，4，1： | 1 |
| 15 | TGF-β_1 inhibits connexin-43 expression in cultured smooth muscle cells of human bladder显示文摘Objective: In this research, we studied the TGF-β1 effects on connexin-43 expression in cultured human bladder smooth muscle cells. Methods: Human bladder smooth muscle cells primary cultures, with bladder tissue obtained from patients undergoing cystectomy, were intervened by recombinant human TGF-β1. Connexin-43 expression in human bladder smooth muscle cells was then examined by Western blotting and immunocytochemistry. Results: Stimulation with TGF-β1 led to significant reduction of connexin-43 immunoreactivity and coupling (P<0.0001). Connexin-43 protein expression was significantly downregulated (P<0.05). Simultaneously, low phosphorylation species of connexin-43 were particularly affected. Conclusion: Our experiments demonstrated a significant downregulation of connexin-43 by TGF-β1 in cultured human bladder smooth muscle cells. These findings support the view that TGF-β1 is involved in the pathophysiology of urinary bladder dysfunction. | Chi Qiang Zhou Fenghai Wang Yangmin | 2009 | Journal of Medical Colleges of PLA(China)2009，24，5： | 1 |
| 16 | Prediction methods for preventing single-phase reclosing on permanent fault显示文摘 | Ge Yaozhong Sui Fenghai Xiao Yuan | 1989 | IEEE Trans on Power Delivery1989，4，1： | 1 |
| 17 | Prediction methods for preventing single phase re closing on permanent fault 显示文摘 | GE Yaozhong SUI Fenghai XIAO Yuan | 1989 | IEEE Trans on Power Delivery1989，4，1： | 1 |
| 18 | Research on deformation prediction method of soft soil deep foundation pit 显示文摘 | MA Fenghai ZHENG Yan YANG Fan | 2008 | Journal of Coal Science and Engineering2008，14，4： | 1 |
| 19 | Prediction methods for preventing single-phase reclosing on permenant fault显示文摘 | Ge Yaozhong Sui Fenghai Xiao Yuan | 1989 | IEEE Trans on Power Delivery1989，4，1： | 1 |
| 20 | Adaptive bowl impedance relay显示文摘 | Gang Li Shenshi Zhu Fenghai Sui | 1999 | IEEE Transactions on Power Delivery1999，14，1： | 1 |
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