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Journal of Natural Gas Chemistry 2009年第2期18卷 232-236页

作者： Xiangdong Ma Qiwen sun Weiyong Ying Dingye fang Chemical Engineering ＆ Pharmaceutics College Henan University of Science and Technology Luoyang 471003 Henan China School of Chemical Engineering East China University of Science and Technology Shanghai 200237 China Shanghai Yankuang Energy R＆ D Co. Ltd Shanghai 201203 China

The Fe-Co/SiO2 bimetallic catalysts with different ratios of Fe to Co were prepared by aqueous incipient wetness impregnation. The catalysts of 10%Fe：0%Co/SiO2, 10%Fe：6%Co/SiO2, 10%Fe：2%Co/SiO2, 10%Fe：10%Co/SiO2, 6%Fe：10%Co/SiO2, 2%Fe：10%Co/SiO2 and 0%Fe： 10%Co/SiO2 by mass were tested in a fixed reactor by the Fischer-Tropsch synthesis. Activity and hydrocarbon distribution were found to be determined by the ratio of iron to cobalt of the catalysts. Higher iron content inhibited the activity, whereas higher cobalt content enhanced the activity of the Fe-Co/SiO2 catalysts. On the other hand, for the catalysts of 10%Fe：6%Co/SiO2, 10%Fe：10%Co/SiO2, 6%Fe：10%Co/SiO2, and 2%Fe：10%Co/SiO2, the total C2-C4 fraction increased （from 10.65% to 26.78%） and C5＋ fraction decreased （from 75.75% to 57.63%） at 523 K. Temperature programmed reduction revealed that the addition of cobalt enhanced the reducibility of the Fe-Co/SiO2 catalyst. Metal oxides were present in those catalysts as shown by XRD. The Fe-Co alloy phase was found in the 2%Fe：10%Co/SiO2, 6%Fe：10%Co/SiO2, 10%Fe： 10%Co/SiO2, 10%Fe：6%Co/SiO2 catalysts and their crystals were perfect.

关键词： Fischer-Tropsch bimetallic iron cobalt

Effects of promoters on catalytic performance of Fe-Co/SiO_2 catalyst for Fischer-Tropsch synthesis

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Journal of Natural Gas Chemistry 2009年第3期18卷 354-358页

作者： Xiangdong Ma Qiwen sun Weiyong Ying Dingye fang Chemical Engineering ＆ Pharmaceutics College Henan University of Science and Technology Luoyang 471003 Henan China Shanghai Yankuang Energy RD Co.Ltd Shanghai 201203 China School of Chemical Engineering East China University of Science and Technology Shanghai 200237 China

2%Fe-10%Co/SiO2 catalysts with different potassium or zirconium loadings were prepared by aqueous incipient wetness impregnation and tested for Fischer-Tropsch synthesis in a flow reactor, using H2/CO = 1.6 （molar ratio） in the feed, under the condition of an overall pressure of 1 MPa, GHSV of 600 h^-1 and temperature of 503 K. The zirconium and potassium promoters remarkably influenced hydrocarbon distribution of the products. CO conversion increased on the catalysts with the increase of zirconium loadings, which indicated that zirconium enhanced the activity of iron-cobalt catalysts. Low potassium loadings also enhanced the activity of the catalysts. However, high potassium loading made CO conversion on the catalysts decrease and weakened the secondary hydrogenations. The catalyst was characterized by BET, XRD and TPR. The catalyst characterization revealed that the Co3O4 phase was presented on the fresh catalyst, whereas the spinel phase of Fe-Co alloy and CoO existed on the used catalyst.

关键词： Fischer-Tropsch synthesis bimetallic iron cobalt promoter potassium zirconium

Physical processes determining the distribution patterns of Nemopilema nomurai in the East China Sea

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Journal of Oceanology and Limnology 2023年第6期41卷 2160-2165页

作者： Song sun Haochen XIAN Ziyuan HU Xiaoxia sun fang ZHANG Key Laboratory of Marine Ecology and Environmental Science Institute of OceanologyChinese Academy of SciencesQingdao 266071China Jiaozhou Bay National Marine Ecosystem Research Station Institute of OceanologyChinese Academy of SciencesQingdao 266071China Laboratory for Marine Ecology and Environmental Science Laoshan LaboratoryQingdao 266237China University of Chinese Academy of Sciences Beijing 100049China

The giant jellyfish Nemopilema nomurai is the largest and most dangerous jellyfish species in East Asian waters,and the *** bloom causes serious problem in coastal industries,fisheries,and *** the previous surveys,we found *** could not be observed in the south of 30°*** this paper,we analyzed the mechanism of this *** exploring the possible impacts of different environmental factors,we found that physical processes are essential to the distribution pattern of *** rather than biological or chemical factors in the East China *** combination of the location of the initial breeding places of *** and the current system determine the distribution *** study could provide important insights to the potential control of the giant jellyfish in the Chinese coastal waters.

关键词： giant jellyfish Nemopilema nomurai distribution pattern physical process East China Sea

Learning the Spatiotemporal Evolution Law of Wave Field Based on Convolutional Neural Network

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Journal of Ocean University of China 2022年第5期21卷 1109-1117页

作者： LIU Xing GAO Zhiyi HOU fang sun Jinggao School of Information Science and Engineering East China University of Science and TechnologyShanghai 200237China National Marine Environmental Forecasting Center Beijing 100081China

Research on the wave field evolution law is highly significant to the fields of offshore engineering and marine resource *** simulations have been conducted for high-precision wave field evolution,thus providing short-term wave field ***,its evolution occurs over a long period of time,and its accuracy is difficult to *** recent years,the use of machine learning methods to study the evolution of wave field has received increasing attention from *** paper proposes a wave field evolution method based on deep convolutional neural *** method can effectively correlate the spa-tiotemporal characteristics of wave data via convolution operation and directly obtain the offshore forecast results of the Bohai Sea and the Yellow *** attention mechanism,multi-scale path design,and hard example mining training strategy are introduced to suppress the interference caused by Weibull distributed wave field data and improve the accuracy of the proposed wave field *** 72-and 480-h evolution experiment results in the Bohai Sea and the Yellow Sea show that the proposed method in this pa-per has excellent forecast accuracy and timeliness.

关键词： wave evolution machine learning convolutional neural network hard example mining

Reproductive cycle of Ophiopholis mirabilis (Echinodermata: Ophiuroidea) in Zhangzi Island area, northern Yellow Sea

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Journal of Oceanology and Limnology 2021年第1期39卷 173-184页

作者： Nan YU Song sun Guangtao ZHANG fang ZHANG CAS Key Laboratory of Marine Ecology and Environmental Sciences Institute of OceanologyChinese Academy of SciencesQingdao 266071China Laboratory for Marine Ecology and Environmental Science Qingdao National Laboratory for Marine Science and TechnologyQingdao 266237China Center for Ocean Mega-Science Chinese Academy of SciencesQingdao 266071China University of Chinese Academy of Sciences Beijing 100049China Jiaozhou Bay Marine Ecosystem Research Station Chinese Academy of SciencesQingdao 266071China

Ophiopholis mirabilis is a common species with a high population density on the western coasts of the northern Pacifi c *** number of *** has been increasing recently in the scallop aquaculture zone(the Zhangzi Island area,northern Yellow Sea)in *** explore the mechanism of its population variation,the reproductive cycle of *** was investigated in this area(39°04′N;122°51′E)from February 2017 through January 2018 and determined by the monthly gonad index(GI),histological examinations of the gonads and the oocyte size-frequency *** had a clear annual reproductive cycle that was synchronous between males and *** temperature and food availability played important roles in *** *** GI value was less reliable for determining reproductive activity in *** because the nutritive tissues within the gonads may be utilized to synthesize gametes,leading to a decrease in GI during *** histological results also show that abundant nutritive phagocytes were present in the gonads of ***,which,together with the germ cells,aff ected the weight of the *** addition,the mature oocytes of *** were relatively small(75–150μm),indicating that the larval development was *** study provided insights into the reproductive patterns and biology of *** and is an essential basis for the quantity control of this species in aquaculture areas.

关键词： reproductive biology Ophiuroidea the northern Pacifi c Ocean Ophiopholis mirabilis

Near-Infrared Fluorescent Nanoprobe for Detecting Hydrogen Peroxide in Inflammation and Ischemic Kidney Injury

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Chinese Journal of Chemistry 2020年第11期38卷 1304-1310页

作者： Lingfeng Xu Lihe sun fang Zeng Shuizhu Wu State Key Laboratory of Luminescent Materials&Devices Guangdong Provincial Key Laboratory of Luminescence from Molecular AggregatesCollege of Materials Science&EngineeringSouth China University of TechnologyGuangzhouGuangdong 510640China

of main observation and conclusion In-situ overexpressed hydrogen peroxide could serve as a biomarker for inflammation and ischemic kidney ***,a nanoprobe was developed for assay of hydrogen *** nanoprobe(TA-TPABQ)was formed via the boronate ester groups between the hydrophilic tannic acid and the boric-acid-containing compound(TPABQ)as well as the hydrophobic *** probe with good photostability shows good sensitivity and selectivity towards H2O2-The probe was adopted for identifying endogenous and exogenous H2O2 in living ***,the probe was utilized for in vivo imaging experiments in acute abdomina and ankle inflammation mouse models as well as acute renal ischemia mouse model.

关键词： inflammation Kidney acute

Defect engineering for high-selection-performance of N_(2) activation over CeO_(2)(111) surface

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Chinese Chemical Letters 2022年第4期33卷 2188-2194页

作者： fang Yuan Risheng sun Ling Fu Guozheng Zhao Key Laboratory of Magnetic Molecules and Magnetic Information Materials Ministry of Education The School of Chemistry and Material ScienceShanxi Normal UniversityLinfen 041004China Institute of Environment and Energy Catalysis Shaanxi Key Laboratory of Optoelectronic Functional Materials and DevicesSchool of Materials Science and Chemical EngineeringXi'an Technological UniversityXi'an 710021China

Nitrogen reduction reactions(NRR) under room conditions remain the challenge for N_(2)activation on metal-based catalysis materials. Herein, the M-doped CeO_(2)(111)(M = Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu and Zn) with oxygen vacancies, are systematically investigated by spin-polarized DFT + U *** discuss briefly the situation of OVs on pure and reduced cerium, and we found that(1) doping TMs can promote the formation of oxygen defects, apart from Ti and V-dopant,(2) the O atoms are easier to escape connecting to M atoms than the ones of adjacent atoms connecting to the Ce(111), the value of OVs formation energies decrease as the TMs radius decrease. Also, our computational results show that Cr-doped, Mn-doped, Fe-doped, and Co-doped CeO_(2)(111) adsorbs N;strongly than the stoichiometric surface and other M-doped CeO_(2)surfaces with adsorption energies of-0.82,-1.02,-0.83 and-1.05 e *** COHP analysis, it is found that the predicted active sites have good catalytic performance.

关键词： Nitrogen reduction CeO_(2)(111) Defect Mechanism

An Overview of Wireless Communication Technology Using Deep Learning

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China Communications 2021年第12期18卷 1-36页

作者： Jiyu Jiao Xuehong sun Liang fang Jiafeng Lyu School of Physics and Electronic-Electrical Engineering Ningxia UniversityNingxia 750021China School of Information Engineering Ningxia UniversityNingxia 750021China

with the development of 5G,the future wireless communication network tends to be more and more *** the face of new service de-mands of communication in the future such as super-heterogeneous network,multiple communication sce-narios,large number of antenna elements and large bandwidth,new theories and technologies of intelli-gent communication have been widely studied,among which Deep Learning(DL)is a powerful technology in artificial intelligence(AI).It can be trained to con-tinuously learn to update the optimal *** paper reviews the latest research progress of DL in in-telligent communication,and emphatically introduces five scenarios including Cognitive Radio(CR),Edge Computing(EC),Channel Measurement(CM),End to end Encoder/Decoder(EED)and Visible Light Com-munication(VLC).The prospect and challenges of further research and development in the future are also discussed.

关键词： artificial intelligence wireless communi�cation deep learning cognitive radio edge comput�ing channel measurement end-to-end encoder and decoder visible light communication

Nanomedicines for the treatment of rheumatoid arthritis:State of art and potential therapeutic strategies

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Acta Pharmaceutica Sinica B 2021年第5期11卷 1158-1174页

作者： Qin Wang Xianyan Qin Jiyu fang Xun sun Key Laboratory of Advanced Technologies of Materials Ministry of Education and School of Materials Science and EngineeringSouthwest Jiaotong UniversityChengdu 610031China Advanced Materials Processing and Analysis Center and Department of Materials Science and Engineering University of Central FloridaOrlandoFL 32816USA Key Laboratory of Drug Targeting and Drug Delivery Systems Ministry of EducationWest China School of PharmacySichuan UniversityChengdu 610041China

Increasing understanding of the pathogenesis of rheumatoid arthritis(RA)has remarkably promoted the development of effective therapeutic regimens of ***,the inadequate response to current therapies in a proportion of patients,the systemic toxicity accompanied by longterm administration or distribution in non-targeted sites and the comprised efficacy caused by undesirable bioavailability,are still unsettled problems lying across the full remission of *** far,these existing limitations have inspired comprehensive academic researches on nanomedicines for RA treatment.A variety of versatile nanocarriers with controllable physicochemical properties,tailorable drug release pattern or active targeting ability were fabricated to enhance the drug delivery efficiency in RA *** review aims to provide an up-to-date progress regarding to RA treatment using nanomedicines in the last 5 years and concisely discuss the potential application of several newly emerged therapeutic strategies such as inducing the antigen-specific tolerance,pro-resolving therapy or regulating the immunometabolism for RA treatments.

关键词： Nanomedicines Rheumatoid arthritis Targeted drug delivery Liposome Micelle Stimulus-responsive delivery systems Immune tolerance Inflammation resolution

A high level of extra-pair paternity in the Chestnut Thrush(Turdus rubrocanus)

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Avian Research 2023年第4期14卷 679-684页

作者： Huan Liu Yun fang Yingqiang Lou Yuehua sun Key Laboratory of Animal Ecology and Conservation Biology Institute of ZoologyChinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China

Extra-pair copulation(EPC)can potentially maximize individual reproductive fitness,and this process may involve sexual selection of male and female traits that reflect individual *** studies have implied that adult characteristics are associated with the probability of extra-pair paternity(EPP),but it differs between ***,there are relatively few examples of the adaptive rationale for females’engagement in EPCs based on an examination of these more traditionally recorded traits,in combination with female flight-mediated traits such as wing *** investigated whether EPP existed in the wild Chestnut Thrush(Turdus rubrocanus)population during three breeding seasons(2019–2021),and whether paternity was related to morphological traits of males and *** highly variable microsatellite loci were used to identify paternity,and generalized linear mixed models were used to analyze the relationship between paternity and morphological *** found that EPP existed in the Chestnut Thrush.53.3%(N=41/77)of the broods contained at least one extra-pair offspring(EPO),and 34.6%(N=72/208)of the nestlings were *** also found that male wing length was negatively associated with the probability of EPP and the proportion of *** body length was positively related to the probability of *** female body condition and mass were negatively associated with the proportion of *** other traits of male and female did not relate to the probability of EPP or the proportion of ***-pair males had better body condition compared to the males they *** did not differ from their half-siblings in terms of body size or body *** results suggest that body size and body condition were associated with EPP in the Chestnut *** study provides fundamental information for further studies on the evolution and maintenance of EPP in the Chestnut Thrush,and it is also useful for the comparison of EPP among Turdus species.

关键词： Chestnut Thrush Extra-pair paternity Microsatellite Morphological traits