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| 1 | MicroRNAs are involved in the development and progression of gastric cancer显示文摘MicroRNAs (miRNAs) are recognized as an essential component of the RNA family, exerting multiple and intricate biological functions, particularly in the process of tumorigenesis, proliferation, and metastatic progression. MiRNAs are altered in gastric cancer (GC), showing activity as both tumor suppressors and oncogenes, although their true roles have not been fully understood. This review will focus upon the recent advances of miRNA studies related to the regulatory mechanisms of gastric tumor cell proliferation, apoptosis, and cell cycle. We hope to provide an in-depth insight into the mechanistic role of miRNAs in GC development and progression. In particular, we summarize the latest studies relevant to miRNAs’ impact upon the epithelial- mesenchymal transition, tumor microenvironment, and chemoresistance in GC cells. We expect to elucidate the molecular mechanisms involving miRNAs for better understanding the etiology of GC, and facilitating the development of new treatment regimens for the treatment of GC. | Xiaolin Liu Ruixia Ma Bin Yi Adam I.Riker Yaguang Xi | 2021 | Acta Pharmacologica Sinica2021，42，7： | 8 |
| 2 | microRNA-218 suppresses the proliferation, invasion and promotes apoptosis of pancreatic cancer cells by targeting HMGB1显示文摘Objective: To detect the expression profiles of micro RNA-218(mi R-218) in human pancreatic cancer tissue(PCT) and cells and their effects on the biological features of human pancreatic cancer cell line PANC-1 and observe the effect of mi R-218 on the expression of the target gene high mobility group box 1(HMGB1), with an attempt to provide new treatment methods and strategies for pancreatic cancer.Methods: The expressions of mi R-218 in PCT and normal pancreas tissue as well as in various pancreatic cancer cell lines including As PC-1, Bx PC-3, and PANC-1 were determined with quantitative real-time reverse transcription polymerase chain reaction(q RT-PCR). The change of mi R-218 expression in PANC-1 cells was detected using qR T-PCT after the transfection of miR-218 mimic for 48 h. Cell Counting Kit-8(CCK-8) was applied for detecting the effect of mi R-218 on the activity of PANC-1 cells. The effects of mi R-218 on the proliferation and apoptosis of PANC-1 cells were analyzed using the flow cytometry. The effect of mi R-218 on the migration of PANC-1 cells was detected using the Trans-well migration assay. The HMGB1 was found to be a target gene of mi R-218 by luciferase reporter assay, and the effect of mi R-218 on the expression of HMGB1 protein in cells were determined using Western blotting.Results: As shown by q RT-PCR, the expressions of mi R-218 in PCT and in pancreatic cancer cell line significantly decreased when compared with the normal pancreatic tissue(NPT)(P<0.01). Compared with the control group, the miR-218 expression significantly increased in the PANC-1 group after the transfection of mi R-218 mimic for 48 h(P<0.01). Growth curve showed that the cell viability significantly dropped after the overexpression of mi R-218 in the PANC-1 cells for two days(P<0.05). Flow cytometry showed that the S-phase fraction significantly dropped after the overexpression of mi R-218(P<0.01) and the percentage of apoptotic cells significantly increased(P<0.01). As shown by the Trans-well migration assay, the enhanced mi R-218 expression was associated with a significantly lower number of cells that passed through a Transwell chamber(P<0.01). Luciferase reporter assay showed that, compared with the control group, the relative luciferase activity significantly decreased in the mi R-218 mimic group(P<0.01). As shown by the Western blotting, compared with the control group, the HMGB1 protein expression significantly decreased in the PANC-1 group after the transfection of mi R-218 mimic for 48 h(P<0.01).Conclusions: The mi R-218 expression decreases in human PCT and cell lines. mi R-218 can negatively regulate the HMGB1 protein expression and inhibit the proliferation and invasion of pancreatic cancer cells. A treatment strategy by enhancing the mi R-218 expression may benefit the patients with pancreatic cancer. | Zhe Liu Yuanhong Xu Jin Long Kejian Guo Chunlin Ge Ruixia Du | 2015 | Chinese Journal of Cancer Research2015，27，3： | 7 |
| 3 | Serum interleukin-10 levels and adverse events in patients with acute coronary syndrome: a systematic review and meta-analysis显示文摘 | Liu Jun Jia Yanjun Li Xiaolin Xu Ruixia Zhu Chenggang Guo Yuanlin Wu Naqiong Li Jianjun | 2014 | Chinese Medical Journal2014，，1： | 6 |
| 4 | High-performance asymmetric electrodes photodiode based on Sb/WSe2 heterostructure显示文摘Two-dimensional (2D) van der Waals (vdWs) metal-semiconductor heterostructures with atomically sharp interface and matched work functions have recently attracted great attention due to their unique electronic and optoelectronic properties. Here we report the vapor phase epitaxial growth of large-scale vertical Sb/WSe2 metal-semiconductor vdWs heterostructures with uniform stacking orientation. Compared with the growth on S1O2/S1 substrate, the thick ness of Sb nan osheet on WSe2 can be reduced effectively to mono layer. We con struct Sb-WSe2-Au asymmetric electrodes photodiode based on the Sb/WSe2 heterostructures. Electrical transport measurements indicate that the photodiode show obvious rectifying effect. Optoelectronic characterizations show prominent photoresponse with a high photoresposivity of 364 mA/W, a fast response time of less than 8 ms, a large open-circuit voltage of 0.27 V and a maximum electrical power output of 0.11 nW. The direct growth of high-quality metal-semiconductor vdWs heterostructures may open up new realms in 2D functional electronics and optoelectronics. | Xiao Liu Guangzhuang Sun Peng Chen Junchi Liu Zhengwei Zhang Jia Li Huifang Ma Bei Zhao Ruixia Wu Weiqi Dang Xiangdong Yang Chen Dai Xuwan Tang Zhuojun Chen Lili Miao Xingqiang Liu Bo Li Yuan Liu Xidong Duan | 2019 | Nano Research2019，12，2： | 5 |
| 5 | Anomalously low ozone of 1997 and 2011 Arctic spring: Monitoring results and analysis显示文摘Total ozone observations from the Total Ozone Unit (TOU) aboard the Chinese second generation polar orbiting mete- orological satellite, Fengyun-3/A (FY-3/A), revealed that total column ozone over the Arctic declined rapidly from the beginning of March 2011. An extensive region of low column amount formed around mid March; monthly mean total column ozone in March 2011 was about 30% lower than the average observed during 1979-2010. Daily total column density of ozone near the center of low ozone area in mid March was less than 240 Dobson units, about half the total column ozone amount observed during the same period of the prior 10 years. We analyzed total column ozone data from different satellites during 1979-2011. Results show that the Arctic depletion of ozone in spring 2011 was initiated by the cold polar vortex in the lower stratosphere. The March mean total ozone over the Arctic has shown a decreasing trend over the past 32 years, and its variation is strongly correlated with the polar vortex. A similar low ozone process of spring 1997 was compared to that of 2011, but daily variations of total ozone in March over the Northern Hemisphere in 1997 and 2011 have different patterns. | ZHANG Yan WANG Weihe LI Xiaojing ZHANG Xingying ZHENG Zhaojun LIU Ruixia | 2012 | Advances in Polar Science2012，23，2： | 5 |
| 6 | Downregulation of long non-coding RNA MEG3 promotes proliferation, migration, and invasion of human hepatocellular carcinoma cells by upregulating TGF-β1显示文摘Hepatocellular carci no ma is a common malig nant can cer with high incide nee. And long noncoding RNAs (lncRNAs) play pivotal roles in the development of different types of cancers. In this study, we aimed to investigate the role of lncRNA maternally expressed gene 3 (MEG3) in the development and progression of hepatocellular carcinoma. Expression of MEG3 in tumor tissues and adjacent healthy tissues of hepatocellular carcinoma patients, as well as the serum of both hepatocellular carcinoma patients and healthy controls, was detected by quantitative reverse transcriptase-polymerase chain reaction. The results showed that expression level of MEG3 was significantly lower in tumor tissues than in adjacent healthy tissues. Serum level of MEG3 was also significantly lower in hepatocellular carci noma patients tha n in normal controls. The receiver operating characteristic curve analysis was used to evaluate the diagnostic value of MEG3 for hepatocellular carcinoma, and the prognostic value of MEG3 for this disease was analyzed using Kaplan-Meier method. The results indicated that serum level of MEG3 was a diagnostic and prognostic marker for hepatocellular carcinoma. We also found that MEG3 small interfering Ribonucleic Acid (siRNA) silencing promoted the proliferation, migration, and invasi on of hepatocellular carci noma cells by CCK-8 assay, transwell migration, and invasion assay, respectively, while TGF-β inhibitor treatment reduced those enhancing effects. MEG3 siRNA silencing also increased the expression level of TGF-β1. These results indicated that downregulation of MEG3 can promote proliferation, migration, and invasion of human hepatocellular carcinoma cells by upregulating TGF-β1 expression. | Hui Dong Yue Zhang Yan Xu Ruixia Ma Liqiu Liu Congjuan Luo Wei Jiang | 2019 | Acta Biochimica et Biophysica Sinica2019，51，6： | 4 |
| 7 | Effects of L-3-n-butylphthalide on caspase-3 and nuclear factor kappa-B expression in primary basal forebrain and hippocampal cultures after beta-amyloid peptide 1-42 treatment显示文摘BACKGROUND:L-3-n-butylphthalide(L-NBP) can inhibit phosphorylation of tau protein and reduce the neurotoxicity of beta-amyloid peptide 1-42(Aβ_(1-42)). OBJECTIVE:To observe the neuroprotective effects of L-NBP on caspase-3 and nuclear factor kappa-B(NF-κB) expression in a rat model of Alzheimer's disease. DESIGN,TIME AND SETTING:A cell experiment was performed at the Central Laboratory of Provincial Hospital affiliated to Shandong University between January 2008 and August 2008. MATERIALS:L-NBP(purity>98%) was provided by Shijiazhuang Pharma Group NBP Pharmaceutical Company Limited.Aβ_(1-42),3-[4,5-dimethylthiazolo-2]-2,5 iphenyltetrazolium bromide(MTT),and rabbit anti-Caspase-3 polyclonal antibody were provided by Cell Signaling, USA;goat anti-choactase and rabbit anti-NF-κB antibodies were provided by Santa Cruz,USA. METHODS:Primary cultures were generated from rat basal forebrain and hippocampal neurons at 17 or 19 days of gestation.The cells were assigned into five groups:the control group,the Aβ_(1-42) group(2μmol/ L),the Aβ_(1-42) + 0.1μmol/L L-NBP group,the Aβ_(1-42)+ 1μmol/L L-NBP group,and the Aβ_(1-42)+ 10μmol/L L-NBP group.The neurons were treated with Aβ_(1-42)(2μmol/L) alone or in combination with L-NBP(0.1,1,10μmol/L) for 48 hours.Cells in the control group were incubated in PBS. MAIN OUTCOME MEASURES:Morphologic changes were evaluated using inverted microscopy, viability using the MTT method,and the changes in caspase-3 and NF-κB expression using Western blot. RESULTS:Induction with Aβ_(1-42) for 48 hours caused cell death and soma atrophy,and increased caspase-3 and NF-κB expression(P<0.05).L-NBP blocked these changes in cell morphology, decreased caspase-3 and NF-κB expression(P<0.05),and improved cell viability,especially at the high dose(P<0.05). CONCLUSION:Aβ_(1-42) is toxic to basal forebrain and hippocampal primary neurons;L-NBP protects against this toxicity and inhibits the induction of caspase-3 and NF-κB expression. | Ruixia Wang Yong Zhang Liangliang Jiang Guozhao Ma Qingxi Fu Jialong Li Peng Yan Lunqian Shen Yabo Feng Chunxia Li Zaiying Pang Yuanxiao Cui Chunfu Chen Yifeng Du Zhaokong Liu | 2009 | Neural Regeneration Research2009，4，4： | 3 |
| 8 | A DFT theoretical study of CH_4 dissociation on gold-alloyed Ni(111)surface显示文摘A density-functional theory(DFT)method has been conducted to systematically investigate the adsorption of CHx(x=0~4)as well as the dissociation of CHx(x=1~4)on(111)facets of gold-alloyed Ni surface.The results have been compared with those obtained on pure Ni(111)surface.It shows that the adsorption energies of CHx(x=1~3)are lower,and the reaction barriers of CH4 dissociation are higher in the first and the fourth steps on gold-alloyed Ni(111)compared with those on pure Ni(111).In particular,the rate-determining step for CH4 dissociation is considered as the first step of dehydrogenation on gold-alloyed Ni(111),while it is the fourth step of dehydrogenation on pure Ni(111).Furthermore,the activation barrier in rate-determining step is higher by 0.41 eV on gold-alloyed Ni(111)than that on pure Ni(111).From above results,it can be concluded that carbon is not easy to form on gold-alloyed Ni(111)compared with that on pure Ni(111). | Hongyan Liu Ruixia Yan Riguang Zhang Baojun Wang Kechang Xie | 2011 | Journal of Natural Gas Chemistry2011，20，6： | 2 |
| 9 | Degradation of dissolved organic matter in effluent of municipal wastewater plant by a combined tidal and subsurface flow constructed wetland显示文摘Dissolved organic matter(DOM)is an important constituent of wastewater treatment plant(WWTP)effluent.A novel combined tidal and subsurface flow constructed wetland(TF-SSFCW)of 90 L was constructed for a ten-month trial of advanced treatment of the WWTP effluent.Excitation emission matrix(EEM)fluorescence spectroscopy,parallel factor(PARAFAC)analysis and a two end-member mixing model were employed to characterize the composition and removal process of the effluent DOM(EfOM)from the WWTP.The results showed that the TF-SSF-CW performed an efficient EfOM removal with dissolved organic carbon(DOC)removal rate of 88%and dissolved organic nitrogen(DON)removal rate of 91%.Further analysis demonstrated that the EfOM consisted mainly of two protein moieties and two humic-like groups;protein moieties(76%)constituted the main content of EfOM in raw water and humic-like groups(57%)became the dominating contributor after treatment.The EfOM from the WWTP was mainly of aquatic bacterial origin and evolved to a higher proportion of terrigenous origin with higher humification in the TF-SSF-CW effluent.A common controlling treatment-related factor for determining the concentrations of the same kind of substances(protein groups or humic-like groups)was revealed to exist,and the ratio of removal rates between the same substances in treatment was calculated.Our study demonstrates that the TF-SSF-CW can be a novel and effective treatment method for the EfOM from WWTPs,and is helpful for understanding of the character of EfOM in wetland treatment. | Chunjian Lyu Ruixia Liu Xiaojie Li Yonghui Song Hongjie Gao | 2021 | Journal of Environmental Sciences2021，33，8： | 2 |
| 10 | Contrasting nutrient stocks and litter decomposition in stands of native and invasive species in a sub-tropical estuarine marsh显示文摘 | Chuan Tong Linhai Zhang Weiqi Wang Vincent Gauci Rob Marrs Baigui Liu Ruixia Jia Congsheng Zeng | 2011 | Environmental Research2011，，7： | 2 |
| 11 | microRNA-218 promotes gemcitabine sensitivity in human pancreatic cancer cells by regulating HMGB1 expression显示文摘Objective: The purpose of this study was to examine the effect of gemcitabine(GEM) on micro RNA-218(mi R-218) expression in human pancreatic cancer cells.Methods: Quantitative reverse transcription polymerase chain reaction(q RT-PCR) was performed to examine the differences in mi R-218 expression between the GEM-sensitive Bx PC-3 pancreatic cancer cells and GEM-resistant PANC-1 cells. The effect of GEM on the expression of mi R-218 in PANC-1 cells was also investigated. PANC-1 cells were transfected either with HMGB1 si RNA to knock down the expression of HMGB1 or with the recombinant HMGB1 expression vector(pc DNA3.1-HMGB1) to overexpress HMGB1. The effect of ectopic expression of HMGB1 on the apoptosis of mi R-218-transfected and GEMtreated PANC-1 cells was examined by flow cytometric analysis.Results: The mi R-218 expression level was lower in GEM-resistant PANC-1 cells compared to GEMsensitive Bx PC-3 cells(P<0.05). The percentage of apoptotic PANC-1 cells was significantly increased in the mi R-218 mimic + GEM group compared to the mimic ctrl + GEM group and the normal control group(P<0.01). The HMGB1 expression level was markedly decreased in PANC-1 cells transfected with HMGB1 si RNA but was significantly increased in PANC-1 cells transfected with the recombinant HMGB1 expression vector, pc DNA3.1-HMGB1(P<0.01). The proportion of apoptotic PANC-1 cells was significantly lower in the mi R-218 mimic + GEM + pc DNA3.1-HMGB1 group compared to the mi R-218 mimic + GEM + HMGB1 si RNA group(P<0.01).Conclusions: The expression level of mi R-218 was downregulated in the GEM-resistant cell line. mi R-218 promoted the sensitivity of PANC-1 cells to GEM, which was achieved mainly through regulating the expression of HMGB1 in PANC-1 cells. | Zhe Liu Ruixia Du Jin Long Kejian Guo Chunlin Ge Shulong Bi Yuanhong Xu | 2015 | Chinese Journal of Cancer Research2015，27，3： | 2 |
| 12 | Removal of Cu(Ⅱ)、Zn(Ⅱ)、Cd(Ⅱ)and Hg(Ⅱ)from waste water by poly(acrylaminophosphonic)-typechelating fiber 显示文摘 | Ruixia Liu Hongxiao Tang Baowen Zhang | 1999 | Chemosphere1999，38，13： | 2 |
| 13 | Direct van der Waals epitaxial growth of 1D/2D Sb2Se3/WS2 mixed-dimensional p-n heterojunctions显示文摘The mixed-dimensional integration of two-dimensional (2D) materials with non-2D materials can give rise to prominent advances in performance or function.To date,the mixed-dimensional one-dimensional (1D)/2D heterostructures have been fabricated using various physical assembly approaches.However,direct epitaxial growth method which has notable advantages in preparing large-scale products and obtaining perfect interfaces is rarely investigated.Herein,we demonstrate for the first time the direct synthesis of the 1D/2D mixed-dimensional heterostructures by sequential vapor-phase growth of Sb2Se3 nanowires on WS2 monolayers.X-ray diffraction (XRD) pattern and Raman spectrum confirm the composition of the Sb2Se3/NS2 heterostructures.Transmission electron microscope (TEM) measurement demonstrates high quality of the heterostructures.Electrical transport characterization reveals that Sb2Se3 nanowire exhibits p-type characteristic and that WS2 monolayer exhibits n-type behavior,and that the p-n diode from 1D/2D mixed-dimensional Sb2Se3/WS2 heterostructure possesses obvious current rectification behavior.Optoelectronic measurements of the heterostructures show apparent photovoltaic response with an open-circuit voltage of 0.19 V,photoresponsivity of 1.51 A/W (Vds =5 V) and fast response time of less than 8 ms.The van der Waals epitaxial growth mode of Sb2Se3 nanowires on WS2 monolayers is verified by stripping the Sb2Se3 nanowire from the heterostructures using tape.Together,the direct van der Waals epitaxy opens a facile pathway to 1D/2D mixed-dimensional heterostructures for functional electronic and optoelectronic devices. | Guangzhuang Sun Bo Li Jia Li Zhengwei Zhang Huifang Ma Peng Chen Bei Zhao Ruixia Wu Weiqi Dang Xiangdong Yang Xuwan Tang Chen Dai Ziwei Huang Yuan Liu Xidong Duan Xiangfeng Duan | 2019 | Nano Research2019，12，5： | 2 |
| 14 | Allelochemicals and allelopathy from microorganisms in wheat rhizosphers显示文摘Allelochemicals from fungi and bacteria in wheat rhizosphere,as well as their allelo-pathic effects on wheat and maize have been conducted.Fungi and bacteria were incubated at tem-perature 28-30℃.The extracts were tested for bioassay.Some samples identified to be responsi-ble for allelopathy have been determined by GC-MS.Some chemicals identified were selected to testagain their bioactivity.The results showed that acidic extracts were more toxic to germination ofwheat and maize seeds(statistic significant difference P<0.01 or P<0.05)and basic extractswere less toxic and stimulated effects on germination in some cases.A good relationship has beenobserved between the data of chemical analysis and bioassay.A wide variety of chemicals such as phenolic acids,organic acids,aldehydes,alcohol,ke-tones,nitrogen-containing chemicals,were identified by GC-MS.Some phenols and organic acidswere identified to be inhibit and nitrogens-containing compounds were to be stimulate to germina-tion of seeds and extension of root and shoot of wheat and maize. | Ma Ruixia Liu Xiufen Yuan Guanglin Sun Sien Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China | 1997 | Journal of Environmental Sciences1997，9，1： | 2 |
| 15 | The development from hyperuricemia to gout:key mechanisms and natural products for treatment显示文摘Gout is a common of inflammatory arthritis and is caused by the deposition of monosodium urate(MSU)crystals as a result of hyperuricemia(HUA).Although HUA is considered to be the main risk factor for gout,only approximately 10%of the individuals with HUA will eventually experience a gout attack.In this review,we first briefly introduce the development of gout and then summarize several possible reasons for its development.Genetic factors play a more prominent role in gout than in other diseases;functional mutations related to urate control and innate immunity components have been found to be associated with gout.Here,we list some of the most prominent genes involved in the pathogenesis of gout.In joints with MSU deposition,mature macrophages may uptake MSU crystals without causing inflammation,and this helps to maintain joints in an asymptomatic state.As an auxiliary inflammation pathway,the ATP-P2X7R-NLRP3 axis may contribute to the amplification of MSU-induced inflammation to affect the development of gout.Finally,this review summarizes the research progress on natural products that can be used in the treatment of HUA and gout. | Lin Liu Dan Wang Mengyang Liu Haiyang Yu Qian Chen Yuzheng Wu Ruixia Bao Yi Zhang Tao Wang | 2022 | Acupuncture and Herbal Medicine2022，2，1： | 2 |
| 16 | Stability,acidity and interaction properties of [Bmim][SbF_6] coupled with concentrated sulfuric acid显示文摘Ionic liquid coupled with strong acid systems presents considerable promise in some catalytic fields.In the present work,the multiple complex systems composed by 98 wt%concentrated sulfuric acid and[Bmim][SbF_6]were investigated in the terms of stability,acidity and interaction properties.It was found that acidolysis of[Bmim][SbF_6]occurred in the 98 wt%concentrated sulfuric acid accompanied by HF releasing and SbF_6~ degrading to[SbF_(6-y)XHSO_4]_y]^-.The species after acidolysis in the multiple complex systems were checked and confirmed by electrospray ionization mass spectrometry(ESI-MS),Fourier transform infrared spectroscopy(FT-IR),~1H NMR and ^(19)F NMR.Acidity increased slightly with less than 1 wt%[Bmim][SbF_6]addition,while decreased with more proportion,which was determined based on the Hammett acidity functions H_0,using ^(13)C NMR.The strong hydrogen bond S-O-H…F of interaction among the multiple complex systems was confirmed by molecular dynamic simulation. | Honghua Zhang Ruixia Liu Ruirui Zhang Feng Huo Zhiqiang Yang Bin He Suojiang Zhang Yanji Wang | 2017 | Science China Chemistry2017，60，9： | 2 |
| 17 | Effects of organic strength on performance of microbial electrolysis cell fed with hydrothermal liquefied wastewater显示文摘Microbial electrochemical technology has drawn increasing attention for the treatment of recalcitrant wastewater as well as production of energy or value-added chemicals recently.However,the study on the treatment of hydrothermal liquefied wastewater(HTL-WW)using microbial electrolysis cell(MEC)is still in its infancy.This study focused on the effects of organic loading rates(OLRs)on the treatment efficiency of recalcitrant HTL-WW and hydrogen production via the MEC.In general,the chemical oxygen demand(COD)removal rate was more than 71.74%at different initial OLRs.Specially,up to 83.84%of COD removal rate was achieved and the volatile fatty acids were almost degraded at the initial OLR of 2 g COD/L·d in the anode of MEC.The maximum hydrogen production rate was 3.92 mL/L·d in MEC cathode,corresponding to a hydrogen content of 7.10%at the initial OLR of 2 g COD/L·d.And in the anode,the maximum methane production rate of 826.87 mL/L·d was reached with its content of 54.75%at the initial OLR of 10 g COD/L·d.Analysis of electrochemical properties showed that the highest open circuit voltage of 0.48 V was obtained at the initial OLR of 10 g COD/L·d,and the maximum power density(1546.22 mW/m3)as well as the maximum coulombic efficiency(6.01%)were obtained at the initial OLR of 8 g COD/L·d.GC-MS analysis revealed the existence of phenols and heterocyclic matters in the HTL-WW,such as 1-acetoxynonadecane and 2,4-bis(1-phenylethyl)-phenol.These recalcitrant compounds in HTL-WW were efficiently removed via MEC,which was probably due to the combination effect of microbial community and electrochemistry in MEC anode. | Shen Ruixia Lu Jianwen Zhu Zhangbing Duan Na Lu Haifeng Yuanhui Zhang Liu Zhidan | 2017 | International Journal of Agricultural and Biological Engineering2017，10，3： | 2 |
| 18 | Comparative catalytic study on butene/isobutane alkylation over LaX and CeX zeolites: The influence of calcination atmosphere显示文摘Lanthanum-containing(LaX)and cerium-containing X zeolites(CeX)were prepared by a doubleexchange,double-calcination method.By changing the calcination atmospheres between nitrogen and air,the Ce^(IV) contents in CeX zeolites were adjusted and their impacts on physicochemical properties and catalytic performance in isobutane alkylation were established.The crystallinity of CeX zeolite was found to be negatively correlated with the Ce^(IV) content.This i s believed to be due to the water formed during the oxidation of Ce^(III),which facilitates the framework dealumination.As a consequence,calcining in air resulted in a great elimination of strong Brønsted acid sites while under nitrogen protection,this phenomenon was mostly hindered and the sample’s acidity was preserved.When tested in a continuously flowed slurry reactor,the catalyst lifetime for isobutane alkylation was found to be linearly related to the strong Brønsted acid concentration.In addition,Ce^(3+)was found more benefit for the hydride transfer compared with La^(3+),which is ascribed to the stronger polarization effect on the CH bond of isobutane.Moreover,the decline of hydride transfer activity can be slowed down by the catalytic cracking of the bulky molecules.Based on the product distribution,a new catalytic cycle of dimethylhexanes(DMHs)involving a direct formation of isobutene rather than tert-butyl carbocation was proposed in isobutane alkylation. | Zhiqiang Yang Ruirui Zhang Honghua Zhang Hongguo Tang Ruixia Liu Suojiang Zhang | 2022 | Chinese Journal of Chemical Engineering2022，35，6： | 2 |
| 19 | Quantitative Precipitation Forecasting Using Multi-Model Blending with Supplemental Grid Points:Experiments and Prospects in China显示文摘Quantitative Precipitation Forecast(QPF)is a challenging issue in seamless prediction.QPF faces the following difficulties:(i)single rather than multiple model products are still used;(ii)most QPF methods require long-term training samples not easily available,and(iii)local features are insufficiently reflected.In this work,a multi-model blending(MMB)algorithm with supplemental grid points(SGPs)is experimented to overcome these shortcomings.The MMB algorithm includes three steps:(1)single-model bias-correction,(2)dynamic weight MMB,and(3)light-precipitation elimination.In step 1,quantile mapping(QM)is used and SGPs are configured to expand the sample size.The SGPs are chosen based on similarity of topography,spatial distance,and climatic characteristics of local precipitation.In step 2,the dynamic weight MMB uses the idea of ensemble forecasting:a precipitation process can be forecast if more than 40% of the models predict such a case;moreover,threat score(TS)is used to update the weights of ensemble members.Finally,in step 3,the number of false alarms of light precipitation is reduced,thus alleviating unreasonable expansion of the precipitation area caused by the blending of multiple models.Verification results show that using the MMB algorithm has effectively improved the TS and bias score(BS)for blended 6-h QPF.The rate of increase in TS for heavy rainfall(25-mm threshold)reaches 20%-40%;in particular,the improvement has reached 47.6% for forecast lead time of 24 h,compared with the ECMWF model.Meanwhile,the BS is closer to 1,which is better than any single-model forecast.In sum,the QPF using MMB with SGPs shows great potential to further improve the present operational QPF in China. | Yu WANG Kan DAI Zhiping ZONG Yue SHEN Ruixia ZHAO Jian TANG Couhua LIU | 2021 | Journal of Meteorological Research2021，35，3： | 2 |
| 20 | Synthesis of urea derivatives from amines and CO2 in the absence of catalyst and solvent 显示文摘 | Wu Chaoyong Cheng Haiyang Liu Ruixia Wang Qiang Hao Yufen Yu Yancun Zhao Fengyu | 2010 | Green Chemistry2010，12，： | 1 |
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