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chinese Journal of Chemical Engineering 2024年第6期70卷 189-198页

作者： Zhengjian Hou Yuanyuan Zhu hua chi Li Zhao Huijie Wei Yanyan Xi Lishuang Ma Xiang Feng Xufeng Lin College of Chemistry and Chemical Engineering China University of Petroleum(East China)Qingdao 266580China Advanced Chemical Engineering and Energy Materials Research Center China University of Petroleum(East China)Qingdao 266580China State Key Laboratory of Heavy Oil Processing China University of Petroleum(East China)Qingdao 266580China

Tuning Strong Metal-support Interactions(SMSI)is a key strategy to obtain highly active catalysts,but conventional methods usually enable TiO_(x) encapsulation of noble metal components to minimize the exposure of noble *** study demonstrates a catalyst preparation method to modulate a weak encapsulation of Pt metal nanoparticles(NPs)with the supported TiO_(2),achieving the moderate suppression of SMSI *** introduction of silica inhibits this encapsulation,as reflected in the characterization results such as XPS and HRTEM,while the Ti^(4+) to Ti^(3+) conversion due to SMSI can still be found on the support ***,the hydrogenation of cinnamaldehyde(CAL)as a probe reaction revealed that once this encapsulation behavior was suppressed,the adsorption capacity of the catalyst for small molecules like H_(2) and CO was enhanced,which thereby improved the catalytic activity and facilitated the hydrogenation of ***,the introduction of SiO_(2) also changed the surface structure of the catalyst,which inhibited the occurrence of the acetal reaction and improved the conversion efficiency of C=O and C=C *** manipulation of SMSI formation and its consequence on the performance in catalytic hydrogenation reactions are discussed.

关键词： Pt catalyst Silica modification Hydrogenation Cinnamaldehyde Strong metal-support interaction

数字智能化诊疗技术在肝胆管结石病诊治中的应用

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中国实用外科杂志 2024年第3期44卷 264-267页

作者：方驰华曾宁南方医科大学珠江医院肝胆一科广东广州510282

肝胆管结石病是我国常见的良性胆道疾病,病情复杂、解剖变异多,由于术前缺乏对肝内脉管结构的可预见性和手术规划性,导致外科手术治疗并发症多、周期长,术后结石残留率、复发率高。数字智能化诊疗技术以三维可视化、分子荧光成像、增强... 详细信息

肝胆管结石病是我国常见的良性胆道疾病,病情复杂、解剖变异多,由于术前缺乏对肝内脉管结构的可预见性和手术规划性,导致外科手术治疗并发症多、周期长,术后结石残留率、复发率高。数字智能化诊疗技术以三维可视化、分子荧光成像、增强现实手术导航为核心,指导个体化肝胆管结石病诊疗,从而提高手术精确性和安全性,已在肝胆管结石病诊治上初见成效,随着该技术不断完善发展,肝胆管结石病外科治疗有望进一步达到智能化、导航精准化、微创个体化目的。

关键词：肝胆管结石病数字智能化导航个体化

Erosion and covered zones altered by surface coverage effects on soil nitrogen and carbon loss from an agricultural slope under laboratorysimulated rainfall events

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International Soil and Water Conservation Research 2022年第3期10卷 382-392页

作者： Linhua Wang Haw Yen chi-hua huang Yafeng Wang Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems South China Botanical GardenChinese Academy of SciencesGuangzhou510650China USDA-ARS National Soil Erosion Research Laboratory West LafayetteIN47907-2077USA Blackland Research and Extension Center Texas A&M Agrilife ResearchTexas A&M UniversityTexas76502USA Institute of Tibetan Plateau Research Chinese Academy of SciencesBeijing100101China

Soil erosion,one of the most serious environmental concerns,might remove topsoil and essential element from terrestrial ***,few attentions have been given to investigating how soil erosion regimes affect soil carbon and nitrogen ***,this study investigated the effects of surface coverage rates(83%,67%,50%,33%,17%and 0%)and two positions(up-and downslope)on erosion regimes and its associated soil nitrogen and carbon loss under a sequence of six rainfalls(R1-R6).These results showed that the sediment concentrations with 33%(R4)and 17%(R5)coverage downslope were significantly lower than those with coverage upslope,whereas there was no significant difference between the runoff rates of the two ***,surface coverage at different positions induced two soil erosion regimes(deposition-and transport-dominated processes).Dynamics of the DON and DIN concentrations indicated different release processes of soil nitrogen into *** DON contributed to a substantial amount of soil nitrogen loss,which accounted approximately 81%of the organic *** SBOC is significantly correlated with sediment-enriched clay particles from the deposition-dominated processes and is higher than that from the transport-dominated *** DOC is significantly correlated with Rr for transport-dominated *** results illustrated the critical role of erosion regimes in soil organic carbon loss in dissolved or sediment-bound *** is concluded that erosion/covered zones altered by surface coverage could produce transport-and deposition-dominated erosion regimes and consequently affect soil carbon and nitrogen *** addition,these results demonstrated that surface coverage pattern may efficiently control soil erosion and soil carbon and nitrogen loss.

关键词： Erosion regimes Carbon and nitrogen loss Surface coverage Coverage position

An updated isoerodent map of the conterminous United States

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International Soil and Water Conservation Research 2022年第1期10卷 1-16页

作者： Ryan P.McGehee Dennis C.Flanagan Puneet Srivastava Bernard A.Engel chi-hua huang Mark A.Nearing Purdue University Agricultural and Biological Engineering225 South University StreetWest LafayetteIN47907USA United States Department of Agriculture-Agricultural Research Service National Soil Erosion Research Laboratory275 S Russell StWest LafayetteIN47907USA University of Maryland Agricultural Experiment StationSymons Hall7998 Regents DriveCollege ParkMD20742-3131USA Purdue University Agricultural Administration Building615 West State StreetWest LafayetteIN47907-2053USAUnited States Department of Agriculture-Agricultural Research ServiceNational Soil Erosion Research Laboratory275 S Russell StWest LafayetteIN47907USA United States Department of Agriculture-Agricultural Research Service Southwest Watershed Research Center2000 E Allen RdTucsonAZ85719USA

Maps of erosivity,which are also commonly referred to as isoerodent maps,have played a critical role in soil conservation efforts in the United States and around the *** available erosivity maps for the United States are either outdated,conflict with erosivity benchmarking studies,or utilized less advanced spatial mapping ***,it is possible that the same underlying issues with US maps are impacting global maps as *** this study,we used more than 340015-min,fixed-interval precipitation gauges to update the isoerodent map of the conterminous United *** values were interpolated using universal kriging under several spatial model configurations and *** optimal spatial model was selected based on which result had the lowest sample variogram ***,erosivity,and erosivity density maps were compared to existing *** average annual and annual erosivity results were compared to high-quality erosivity benchmarking *** values from both RUSLE2 and Panagos et al.(2017)were generally lower in the eastern United States and mixed in the western United States compared to our *** effects resulted in much greater erosivity differences in this study as compared to prior *** comparisons revealed that erosivity maps from this study and others were lower than the benchmark by 14%or more(up to 38%).These findings suggest current practices of storm omission and intensity dampening correction need to be revisited,especially in locations with relatively low-to-moderate rainfall erosivity such as the Midwest or Northeast United States,for example.

关键词： Erosion index Erosivity United States USLE RUSLE2 Soil loss

Comprehensive and efficient discovery of time series motifs

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Journal of Zhejiang University-Science C(Computers and Electronics) 2011年第12期12卷 1000-1009页

作者： Lian-hua chi He-hua chi Yu-cai FENG Shu-liang WANG Zhong-sheng CAO School of Computer Science and Technology Huazhong University of Science and Technology Wuhan 430074 China State Key Laboratory of Software Engineering Computer School Wuhan University Wuhan 430079 China International School of Software Wuhan University Wuhan 430079 China

Time series motifs are previously unknown,frequently occurring patterns in time series or approximately repeated subsequences that are very similar to each *** are two issues in time series motifs discovery,the deficiency of the definition of K-motifs given by Lin et al.(2002) and the large computation time for extracting *** this paper,we propose a relatively comprehensive definition of K-motifs to obtain more valuable *** the computation time as much as possible,we extend the triangular inequality pruning method to avoid unnecessary operations and calculations,and propose an optimized matrix structure to produce the candidate motifs almost *** of two experiments on three time series datasets show that our motifs discovery algorithm is feasible and efficient.

关键词：时间系列主题 K 主题的定义优化矩阵结构快修剪方法

Uncertainties of landslide susceptibility prediction: Influences of random errors in landslide conditioning factors and errors reduction by low pass filter method

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Journal of Rock Mechanics and Geotechnical Engineering 2024年第1期16卷 213-230页

作者： Faming huang Zuokui Teng chi Yao Shui-hua Jiang Filippo Catani Wei Chen Jinsong huang School of Infrastructure Engineering Nanchang UniversityNanchang330031China State Key Laboratory of Geohazard Prevention and Geoenvironment Protection Chengdu University of TechnologyChengdu610059China Department of Geosciences University of PadovaPadovaItaly College of Geology and Environment Xi’an University of Science and TechnologyXi’an710054China Discipline of Civil Surveying and Conditioning EngineeringPriority Research Centre for Geotechnical Science and EngineeringUniversity of NewcastleNewcastleNSWAustralia

In the existing landslide susceptibility prediction(LSP)models,the influences of random errors in landslide conditioning factors on LSP are not considered,instead the original conditioning factors are directly taken as the model inputs,which brings uncertainties to LSP *** study aims to reveal the influence rules of the different proportional random errors in conditioning factors on the LSP un-certainties,and further explore a method which can effectively reduce the random errors in conditioning *** original conditioning factors are firstly used to construct original factors-based LSP models,and then different random errors of 5%,10%,15% and 20%are added to these original factors for con-structing relevant errors-based LSP ***,low-pass filter-based LSP models are constructed by eliminating the random errors using low-pass filter ***,the Ruijin County of china with 370 landslides and 16 conditioning factors are used as study *** typical machine learning models,*** perceptron(MLP),support vector machine(SVM)and random forest(RF),are selected as LSP ***,the LSP uncertainties are discussed and results show that:(1)The low-pass filter can effectively reduce the random errors in conditioning factors to decrease the LSP uncertainties.(2)With the proportions of random errors increasing from 5%to 20%,the LSP uncertainty increases continuously.(3)The original factors-based models are feasible for LSP in the absence of more accurate conditioning factors.(4)The influence degrees of two uncertainty issues,machine learning models and different proportions of random errors,on the LSP modeling are large and basically the same.(5)The Shapley values effectively explain the internal mechanism of machine learning model predicting landslide *** conclusion,greater proportion of random errors in conditioning factors results in higher LSP uncertainty,and low-pass filter can effectively reduce these random e

关键词： Landslide susceptibility prediction Conditioning factor errors Low-pass filter method Machine learning models Interpretability analysis

Simulation of municipal solid waste gasification for syngas production in fixed bed reactors

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2010年第8期11卷 619-628页

作者： Chong CHEN Yu-qi JIN Jian-hua YAN Yong chi State Key Laboratory of Clean Energy Utilization Zhejiang University Hangzhou 310027 China

This study proposes a model of syngas production from municipal solid waste (MSW) gasification with air in fixed bed reactors. The model (using Aspen plus simulator) is used to predict the results of MSW gasification and to provide some process fundamentals concerning syngas production from MSW gasification. The effects of gasification temperature, air equiva- lence ratio and moisture concentration on the composition of syngas, lower heating value (LHV) of syngas, heat conversion efficiency, and carbon conversion are discussed. The results indicate that higher temperature improves gasification, and higher air equivalence ratio increases the carbon conversion while decreasing syngas LHV. Heat conversion efficiency increases and reaches the maximum and then decreases with the increase of air equivalence ratio. Higher moisture concentration increases the carbon conversion and increases the heat conversion efficiency at lower ratios. Higher temperature and a lower equivalence ratio are favorable for obtaining a higher LHV of syngas at the same moisture concentration.

关键词： Municipal solid waste (MSW) Gasification Syngas Aspen plus Fixed bed

Fluoro-functionalized plant biomass adsorbent:Preparation and application in extraction of trace perfluorinated compounds from environmental water samples

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Journal of Environmental Sciences 2024年第3期137卷 703-715页

作者： Xi Tan Yan Shi Chun-Feng Ma Quan chi Yu-Hang Yang Wen-Xiang Zhang hua-Ming Xiao Xian Wang Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission School of Chemistry and Materials ScienceSouth-Central Minzu UniversityWuhan 430074China School of Pharmaceutical Sciences South-Central Minzu UniversityWuhan 430074China Key Laboratory of Oilseeds Processing of Ministry of Agriculture Hubei Key Laboratory of Lipid Chemistry and NutritionOil Crops Research Institute of the Chinese Academy of Agricultural SciencesWuhan 430062China

Perfuorinated compounds(PFCs)are toxic and widely present in the environment,and therefore effective adsorbents are required to remove PFCs from environmental *** the present study,a new type of fuorinated biomass materials was synthesized via an ingenious fuorosilanization *** adsorbents were applied for the adsorption of 13typical PFCs,including perfuorocarboxylic acids(PFCAs)and perfuorosulfonic acids(PFSAs).By comparing their adsorption performance,Fluorinated cedar slag(FCS)was discovered to have the best absorption efficiency and enabled highly efficient enrichment of *** adsorption recovery of FCS with the investigated PFCs is greater than 90%under the optimal adsorption *** to the high affinity of F-F sorbent-sorbate interaction,FCS had good adsorption capacities of PFCs from aqueous solution,with the maximum adsorption capacity of 15.80 mg/g for PFOS and 10.71 mg/g for PFOA,***,the adsorption time could be achieved in a short time(8 min).Using the FCS absorbent,an innovative FCS-solid phase extraction assisted with high performance liquid chromatography-electrospray-tandem mass spectrometry(FCS-SPE-HPLC-ESI-MS/MS)method was first developed to sensitively detect PFCs in the environmental water *** intra-day and inter-day recovery rates of the 13 compounds ranged from 90.7%-104.3%,with the RSD of 2.1%-4.7%(intra-day)and 2.5%-8.5%(inter-day),*** research demonstrates the potential of the newly fuoro-functionalized plant biomass to adsorb PFCs from environmental water,with the advantages of high adsorption efficiencies,high antiinterference,easy operation and low economic cost.

关键词： Fluoro-functionalized biomass Perfuorinated compounds(PFCs) Adsorption efficiency Mass spectrometry(MS) Fluorinated cedar slag(FCS)

Vacuum Ultraviolet Excited Photoluminescence Properties of Y_2O_2S:Eu^(3+),Bi^(3+) Phosphor

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Chemical Research in chinese Universities 2008年第6期24卷 679-682页

作者： WANG Zhi-long WANG Yu-hua ZHANG Jia-chi Department of Materials Science Lanzhou University Lanzhou 730000 P. R. China

As an Hg-free lamp using phosphor, the Bi^3＋ and EH^3＋ co-doped Y2O2S phosphors were prepared and their luminescence properties under vacuum ultraviolet（VUV） excitation were investigated. The VUV photoluminescent intensity of Y2O2S：Eu^3＋ was weak, however, considerably stronger red emission at 626 nm with good color purity was observed in Y2O2S：Eu^3＋,Bi^3＋ systems. Investigation on the photoluminescence reveals that the strong VUV luminescence of Y2O2S：Eu^3＋,Bi^3＋ at 147 nm is mainly because the Bi^3＋ acts as a medium and effectively performs the energy transfer process： Y^3＋-O^2-→Bi^3＋→Eu^3＋, while the intense emission band at 172 nm is attributed to the absorption of the characteristic ^1So-^1P1 transition of Bi^3＋ and the direct energy transfer from Bi^3＋ to Eu^3＋. The Y2O2S：Eu^3＋,Bi^3＋ shows excellent VUV optical properties compared with the commercial （Y,Gd）BO3：Eu^3＋. Thus, the Y2O2S：Eu^3＋,Bi^3＋ can be a potential red VUV-excited candidate applied in Hg-free lamps for backlight of liquid crystal display.

关键词： Y2O2S:Eu^3+,Bi^3+ Vacuum ultraviolet(VUV) Phosphor

Platelet RNA signature independently predicts ovarian cancer prognosis by deep learning neural network model

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蛋白质与细胞:英文版 2023年第8期14卷 618-622页

作者： Chun-Jie Liu hua-Yi Li Yue Gao Gui-Yan Xie Jian-hua chi Gui-Ling Li Shao-Qing Zeng Xiao-Ming Xiong Jia-Hao Liu Lin-Li Shi Xiong Li Xiao-Dong Cheng Kun Song Ding Ma An-Yuan Guo Qing-Lei Gao Department of Gynecological Oncology Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030China National Clinical Research Center for Obstetrics and Gynecology Cancer Biology Research Center(Key Laboratory of the Ministry of Education)Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030China Center for Artificial Intelligence Biology Hubei Bioinformatics&Molecular Imaging Key LaboratoryKey Laboratory of Molecular Biophysics of the Ministry of EducationCollege of Life Science and TechnologyHuazhong University of Science and TechnologyWuhan 430074China Cancer Center Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430022China Department of Gynecology and Obstetrics The Central Hospital of WuhanTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030China Department of Gynecological Oncology Women's HospitalSchool of MedicineZhejiang UniversityHangzhou 310011China Gynecological Oncology Key Laboratory Qilu HospitalShandong UniversityJinan 250100China

Dear Editor,Platelets are circulating anucleate cytoplasmic fragments of megakaryocytes and characterized by their functions in wound healing and vascular integrity *** evidence highlights the extensive reciprocal signaling interactions between platelets and tumor cells(Haemmerle et al.,2018).Tumor cells activate and aggregate platelets to sustain proliferation(Cho et al.,2012),resist apoptosis,and promote metastasis(Haemmerle et al.,2017).

关键词： Platelet healing