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Journal of Central South University 2022年第12期29卷 3870-3883页

作者： DANG Rui XU xiu-feng XIE Meng-meng Northwest Institute For Nonferrous Metal Research Xi’an 710016China The Faculty of Printing Packaging Engineering and Digital Media TechnologyXi’an University of TechnologyXi’an 710054China

Non-precious electro catalysts with high-efficiency, cheapness and stablility are of great significance to replace noble metal electro catalysts in the hydrogen evolution reaction(HER) and oxygen evolution reaction(OER). In this work, triangular Cu@CuO nanorods on Cu nanosheets were fabricated by a novel in-situ oxidation approach using Cu nanosheets as self-template and conductive nano-substrate in an aqueous solution of NaOH/H2O2, and then by lowtemperature phosphorization treatments. The experimental results show that the phosphating temperature has a significant effect on the morphology, composition and number of active sites of Cu@Cu_(3)P nanorods. The Cu@Cu_(3)P-280 electrode exhibits a good HER catalytic activity of achieving a current density of 10 mA/cm^(2) at 252 mV in acid electrolyte. After catalysis for 14 h, the current density can still reach 72% of the initial value. Moreover, the Cu@Cu_(3)P-280 electrode also shows an excellent OER catalytic activity in basic electrolyte, reaching a current density of 10 mA/cm^(2) at the overpotential value of 200 mV. After catalysis for 12 h, the current density remained more than 93% of the initial value. This work provides a theoretical basis for the directional design and preparation of sustainable, low-cost, bifunctional electrocatalytic materials.

关键词： Cu@Cu_(3)P electrocatalysis oxygen evolution reaction hydrogen evolution reaction

Trends in Annual and Seasonal Pan Evaporation in the Lower Yellow River Basin from 1961 to 2010

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Advances in Climate Change Research 2012年第4期3卷 195-204页

作者： JI Xing-Jie WANG Ji-Jun GU Wan-Long ZHU Ye-Yu LI feng-xiu Henan Climate Center Henan Meteorological Bureau

The annual and seasonal trends in pan evaporation in the lower Yellow River Basin based on quality-controlled data from 10 meteorological stations in 1961-2010 are analyzed. The causes for the changes in annual and seasonal pan evaporation are also discussed. The results suggest that, despite the 1.15~C increasing in annual mean surface air temperature over the past 50 years （0.23°C per decade）, the annual pan evaporation has steadily declined by an average rate of-7.65 mm per year. By comparison, this change is greater than those previously reported in China. Significant decreasing trends in annual pan evaporation have been observed at almost all stations. As a whole, seasonal pan evaporation decreased significantly, especially in summer, whereas seasonal temperature increased significantly, except in summer. Thus, the pan evaporation paradox exists in the lower Yellow River Basin. The trend analysis of other meteorological factors indicates significant decrease in sunshine duration and wind speed, but no significant variations in precipitation and relative humidity at annual and seasonal time scales. By examining the relationship between precipitation and pan evaporation, it did not show a concurrent decrease in pan evaporation and increase in precipitation. The partial correlation analysis discovered that the primary cause of decrease in annual and seasonal pan evaporation is the decrease in wind speed. A further examination using a stepwise regression shows that decrease in wind speed and sunshine duration, and increase in mean temperature axe likely to be the main meteorological factors affecting the annual and seasonal pan evaporation in the lower Yellow River Basin over the past 50 years.

关键词： lower Yellow River Basin pan evaporation trend meteorological factors

Electroacupuncture Promotes Functional Recovery after Facial Nerve Injury in Rats by Regulating Autophagy via GDNF and PI3K/m TOR Signaling Pathway

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Chinese Journal of Integrative Medicine 2024年第3期30卷 251-259页

作者： YAO Jun-peng feng xiu-mei WANG Lu LI Yan-qiu ZHU Zi-yue YAN Xiang-yun YANG Yu-qing LI Ying ZHANG Wei Acupuncture and Tuina School Chengdu University of Traditional Chinese MedicineChengdu611137China Department of Rehabilitation Medicine Guanghan People’s HospitalGuanghanSichuan Province618399China Academic Affairs Office Chengdu University of Traditional Chinese MedicineChengdu611137China

Objective:To explore the mechanism of electroacupuncture(EA) in promoting recovery of the facial function with the involvement of autophagy,glial cell line-derived neurotrophic factor(GDNF),and phosphatidylinositol-3-kinase(PI3K)/mammalian target of rapamycin(mTOR) signaling ***:Seventy-two male Sprague-Dawley rats were randomly allocated into the control,sham-operated,facial nerve injury(FNI),EA,EA+3-methyladenine(3-MA),and EA+GDNF antagonist groups using a random number table,with 12 rats in each *** FNI rat model was established with facial nerve crushing *** intervention was conducted at Dicang(ST 4),Jiache(ST 6),Yifeng(SJ 17),and Hegu(LI 4) acupoints for 2 *** Simone’s 10-Point Scale was utilized to monitor the recovery of facial *** histopathological evaluation of facial nerves was performed using hematoxylin-eosin(HE) *** levels of Beclin-1,light chain 3(LC3),and P62 were detected by immunohistochemistry(IHC),immunofluorescence,and reverse transcriptionpolymerase chain reaction,***,IHC was also used to detect the levels of GDNF,Rai,PI3K,and ***:The facial functional scores were significantly increased in the EA group than the FNI group(P<0.05 or P<0.01).HE staining showed nerve axons and myelin sheaths,which were destroyed immediately after the injury,were recovered with EA *** expressions of Beclin-1 and LC3 were significantly elevated and the expression of P62 was markedly reduced in FNI rats(P<0.01);however,EA treatment reversed these abnormal changes(P<0.01).Meanwhile,EA stimulation significantly increased the levels of GDNF,Rai,PI3K,and mTOR(P<0.01).After exogenous administration with autophagy inhibitor 3-MA or GDNF antagonist,the repair effect of EA on facial function was attenuated(P<0.05 or P<0.01).Conclusions:EA could promote the recovery of facial function and repair the facial nerve damages in a rat model of *** may exert this neuroreparative effect through

关键词： electroacupuncture facial nerve injury autophagy glial cell line-derived neurotrophic factor phosphatidylinositol-3-kinase/mammalian target of rapamycin Chinese medicine

The influence of discharge style on the separation of coarse coal slime by a hindered fluidized bed

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Journal of Coal Science & Engineering(China) 2012年第1期18卷 96-100页

作者： Jie Sha Guang-yuan Xie Li-gang Tang Yao-li Peng xiu-feng Zhang School of Chemical Engineering and Technology China University of Mining and Technology Xuzhou China State Key Laboratory of Multiphase Complex Systems Institute of Process Engineering Chinese Academy of Sciences Beijing China Dadi Engineering Development (Group) Co. Ltd. Tianjin China

Two kinds of liquid distributor, a central discharge or a peripheral discharge, were designed into a hindered fluid- ized bed separator. The beneficiation performance of the fluidized bed was investigated using 0.25-1.00 mm coarse coal slime and the two different distributors. The experimental results show that the heterogeneity of axial particle velocity in the radial direction of the bed can be reduced by a distributor that has a central discharge. The beneficiation performance for this dis- tributor is improved relative to the distributor with the peripheral discharge. This indicates that it is necessary to eliminate or suppress the core-annulus structure within a hindered fluidized bed. Increasing superficial water velocity causes the clean coal ash content, the railings ash content, and the combustible recovery to increase. Additionally, increasing the bed height decreases all of these three indexes. The optimum superficial water velocity and bed height for a 0.25-1.00 mm coal feed were deter- mined to be 3 mm/s and 800 mm, respectively. This work provides a foundation for the scale-up of the bed.

关键词： discharge style coarse coal slime hindered fluidized bed liquid distributor

The application of projection pursuit classification in the process of strategy selection and evaluation based on the real coded accelerating genetic algorithm

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Chinese Business Review 2008年第1期7卷 40-44,64页

作者： JIANG Fa-zhu YANG xiu-feng College of Economic and Management Heilongjiang August First Land Reclamation University Daqing 163319 China

During the process of enterprises＇ strategy evaluation and selection, there are many evaluating indicators, and among them there are some potential correlations and conflicts. Thus it poses the problems to the decision-makers how to conduct correct evaluation on a business and how to make strategy adjustment and selection according to the evaluation. Based on the qualitative and quantitative method, the paper introduces the Projection Pursuit Classification （PPC） model based on the Real-coded Accelerating Genetic Algorithm （RAGA） into the process of enterprises＇ strategy evaluation and selection. The characteristic of PPC model is that it ultimately overcomes the influence of the proportion of subjectivity and avoids precocious convergence, thus providing a new objective method for strategy evaluation and selection by pursuing the most objective strategy evaluation to make the relatively sensible strategy portfolio and action.

关键词： projection pursuit strategy evaluation accelerating genetic algorithm

Catalyst Transformation in Water Oxidation with Cp*-Iridium Carbene Complexes Using Oxone as Primary Oxidant

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Catalyst Transformation in Water Oxidation with Cp*-Iridium ...

Campylobacter Outbreak Associated with Duck Blood Curd in 2019 in Shunyi District, Beijing, China

中国化学会第九届全国无机化学学术会议

作者： Hui Cao xiu-feng Hou Department of Chemistry Fudan University

Cp*iridium complexes（Cp*=C5Me5-）have recently been shown as effective precatalysts for the oxidation of water to molecular oxygen,which is recognized as the most challenging process in the realization of artificial photosynthesis aimed at producing solar *** nature of catalytic species,however,remains a matter of debate due to oxidative transformation of the *** our investigation of a Cp*-iridium carbene catalyst（Fig 1）in water oxidation using potassium peroxymonosulfate（Oxone）as primary oxidant,we found the precatalyst would evolve to a blue species when a small amount of Oxone was *** addition of Oxone would yield stable purple species,while previous studies on iridium-catalyzed water oxidation all pointed out the formation of blue solution as catalytic resting *** species have been proven to be homogeneous and they remain active in water *** intermediates during oxidative transformation were then analyzed.1H NMR profiles and MALDI-MS data suggested a rapid oxidation of the Cp*ligand to acetone,formic and acetic acid.1H NMR,TEM-EDX as well as MALDI-MS data indicated a continuous degradation of pyrimidyl,butyl and carbene ***-MS,XANES and 17O NMR spectroscopy data of the blue species are most consistent with an iridium（III）compound with two waters,one dioxygen and pm NHC *** purple catalytic resting species probably consists of an iridium（III）complex with three waters,one chloride and one bicarbonate ***,the presence of a small amount of iridium aqua ion oligomers was observed in the purple *** formation of more polymers and nanoparticles is likely to be inhibited by the acid environment.

关键词： water oxidation iridium Oxone catalyst transformation catalytic resting state

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Biomedical and Environmental Sciences 2021年第6期34卷 489-492页

作者： CHEN Dong Wan HE Chao LYU Jin Chang LIU xiu feng GAO Peng ZHEN Guo Xin LI Ying JING Hong Bo Shunyi Center for Disease Control and Prevention Beijing 101300China

Campylobacter surpassed Salmonella several years ago and has recently emerged as one of the most important foodborne pathogens even in highincome countries,bearing a significant economic burden[1].In low-and middle-income countries,limited data indicate that the rate of Campylobacter infection has increased[2].In China,between July2005 and December 2006,4.84%of 3,061 patients with diarrhea were positive for Campylobacter。

关键词： income Blood break

L-Shell Ionization Study of Tungsten by Electron Impact

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Chinese Physics Letters 2001年第1期18卷 39-41页

作者： PENG xiu-feng HE Fu-Qing LONG Xian-Guan AN Zhu LUO Zheng-Ming Key Laboratory for Radiation Physics and Technology of Education Ministry of China Institute of Nuclear Science and TechnologySichuan UniversityChengdu 610064

L-shell partial production cross sections of L_(α)-,L_(β)-,L_(γ)-rays by electron impact were measured by observing the counts of x-rays from an impacted thin tungsten *** total production cross sections and mean ionization cross sections were deduced from the measured *** electron beam energy range was found to be 11-36 *** influence of electrons reflected by the backing on ionization cross sections has been *** experimental results agree well with the theoretical predictions.

关键词： Impact Electron sections

The Relationship between Working Conditions and Adverse Health Symptoms of Employee in Solar Greenhouse

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Biomedical and Environmental Sciences 2015年第2期28卷 143-147页

作者： ZHANG Min WANG xiu feng CUI xiu Min WANG Jian YU Shi Xin College of Resources and Environment Shandong Agricultural University College of the Horticulture Science and Engineering Shandong Agricultural University

To determine the correlation between the working environment and the health status of employees in solar greenhouse, 1171 employees were surveyed. The results show the ＇Greenhouse diseases＇ are affected by many factors. Among general uncomforts, the morbidity of the bone and joint damage is the highest and closely related to labor time and age. Planting summer squash and wax gourd more easilv cause skin pruritus.

关键词： The Relationship between Working Conditions and Adverse Health Symptoms of Employee in Solar Greenhouse

Berberine displays antitumor activity in esophageal cancer cells in vitro

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World Journal of Gastroenterology 2017年第14期23卷 2511-2518页

作者： shu-xian jiang bo qi wen-jian yao cheng-wei gu xiu-feng wei yi zhao yu-zhen liu bao-sheng zhao department of thoracic surgery the first affiliated hospital of xinxiang medical university

To investigate the effects of berberine on esophageal cancer (EC) cells and its molecular mechanisms. METHODS Human esophageal squamous cell carcinoma cell line KYSE-70 and esophageal adenocarcinoma cell line SKGT4 were used. The effects of berberine on cell proliferation were evaluated using the 3-(4,5-dimethylthiazol-2-yl)2,5-diphenyltetrazolium bromide (MTT) assay. For cell cycle progression, KYSE-70 cells were stained with propidium iodide (PI) staining buffer (10 mg/mL PI and 100 mg/mL RNase A) for 30 min and cell cycle was analyzed using a BD FACSCalibur flow cytometer. For apoptosis assay, cells were stained with an Annexin V-FITC/PI apoptosis detection kit. The rate of apoptotic cells was analyzed using a dual laser flow cytometer and estimated using BD ModFit software. Levels of proteins related to cell cycle and apoptosis were examined by western blotting. RESULTS Berberine treatment resulted in growth inhibition of KYSE-70 and SKGT4 cells in a dose-dependent and time-dependent manner. KYSE-70 cells were more susceptible to the inhibitory activities of berberine than SKGT4 cells were. In KYSE-70 cells treated with 50 mu mol/L berberine for 48 h, the number of cells in G2/M phase (25.94% +/- 5.01%) was significantly higher than that in the control group (9.77% +/- 1.28%, P < 0.01), and berberine treatment resulted in p21 upregulation in KYSE-70 cells. Flow cytometric analyses showed that berberine significantly augmented the KYSE-70 apoptotic population at 12 and 24 h post-treatment, when compared with control cells (0.83% vs 43.78% at 12 h, P < 0.05; 0.15% vs 81.86% at 24 h, P < 0.01), and berberine-induced apoptotic effect was stronger at 24 h compared with 12 h. Western blotting showed that berberine inhibited the phosphorylation of Akt, mammalian target of rapamycin and p70S6K, and enhanced AMP-activated protein kinase phosphorylation in a sustained manner. CONCLUSION Berberine is an inhibitor of human EC cell growth and could be considered as a potenti

关键词： Berberine Esophageal cancer Antitumor activity Proliferation Cell cycle Apoptosis