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Global sensitivity analysis of wheat grain yield and quality and the related process variables from the DSSAT-CERES model based on the extended Fourier Amplitude Sensitivity Test method

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Journal of Integrative Agriculture 2019年第7期18卷 1547-1561页

作者： LI Zhen-hai JIN Xiu-liang LIU hai-long XU Xin-gang wang Ji-hua Key Laboratory of Agri-lnformatics Ministry of Agriculture and Rural AffairsBeijing 100097P.R. China Beijing Research Center for Information Technology in Agriculture Beijing Academy of Agriculture and Forestry SciencesBeijing 100097P R.China UMR EMMAH INRANAPVAvignon 84914France Agricultural Information Institute Chinese Academy of Agricultural Sciences/Key Laboratory of Agri-lnformation Service TechnologyMinistry of Agriculture and Rural AffairsBeijing 100081P.R. China Beijing Research Center for Agri-Food Testing and Farmland Monitoring Beijing Academy of Agriculture and Forestry SciencesBeijing 100097P.R.China

A crop growth model,integrating genotype,environment,and management factor,was developed to serve as an analytical tool to study the influence of these factors on crop growth,production,and agricultural planning.A major challenge of model application is the optimization and calibration of a considerable number of *** analysis(SA) has become an effective method to identify the importance of various *** this study,the extended Fourier Amplitude Sensitivity Test(EFAST) approach was used to evaluate the sensitivity of the DSSAT-CERES model output responses of interest to 39 crop genotype parameters and six soil *** outputs for the SA included grain yield and quality(take grain protein content(GPC) as an indicator) at maturity stage,as well as leaf area index,aboveground biomass,and aboveground nitrogen accumulation at the critical process *** key results showed that:(1) the influence of parameter bounds on the sensitivity results was slight and less than the impacts from the significance of the parameters themselves;(2) the sensitivity parameters of grain yield and GPC were different,and the sensitivity of the interactions between parameters to GPC was greater than those between the parameters to grain yield;and(3) the sensitivity analyses of some process variables,including leaf area index,aboveground biomass,and aboveground nitrogen accumulation,should be performed ***,some parameters,which improve the model’s structure and the accuracy of the process simulation,should not be ignored when maturity output as an objective variable is studied.

关键词： global sensitivity analysis DSSAT EFAST wheat yield grain protein content

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Estimating submarine groundwater discharge and associated nutrient inputs into Daya Bay during spring using radium isotopes

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Water Science and Engineering 2018年第2期11卷 120-130页

作者： Jing-yan Gao Xue-jing wang Yan Zhang hai-long Li School of Environment Harbin Institute of Technology School of Environmental Science and Engineering Southern University of Science and Technology School of Water Resources and Hydropower Engineering Wuhan University State Key Laboratory of Biogeology and Environmental Geology China University of Geosciences

Daya Bay, a semi-enclosed bay in the South China Sea, is well known for its aquaculture, agriculture, and tourism. In recent years, many environmental problems have emerged, such as the frequent(almost yearly) occurrence of harmful algal blooms and red tides. Therefore,investigations of submarine groundwater discharge(SGD) and associated nutrient inputs to this bay have important theoretical and practical significance to the protection of the ecological system. Such a study was conducted using short-lived radium isotopes ^(223)Ra and ^(224)Ra. The estimated SGD fluxes were 2.89 × 10~7 m^3/d and 3.05 × 10~7 m^3/d based on ^(223)Ra and ^(224)Ra, respectively. The average SGD flux was about 35 times greater than that of all the local rivers. The SGD-associated dissolved inorganic nitrogen(DIN) and dissolved inorganic phosphorus(DIP)fluxes ranged from 1.95 × 10~6 to 2.06 × 10~6 mol/d and from 5.72 × 10~4 to 6.04 × 10~4 mol/d, respectively. The average ratio of DIN to DIP fluxes in SGD was 34, much higher than that in local rivers(about 6.46), and about twice as large as the Redfield ratio(16). Our results indicate that SGD is a significant source of nutrients to the bay and may cause frequent occurrence of harmful algal blooms. This study provides baseline data for evaluating potential environmental effects due to urbanization and economic growth in this region.

关键词： Submarine groundwater discharge(SGD) Radium isotopes Radium mass balance model SGD-associated nutrient fluxes Daya Bay

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Synthesis and Bioactivity of Arecoline Derivatives Containing Amino-s-triazole Coupled Oxadiazole

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Chinese Chemical Letters 2006年第1期17卷 19-22页

作者： Guo Qiang HU Sheng LI Wen long HUANG hai wang Medical College of Henan Unversity Kaifeng 475001 China Pharmaceutical University Nanjing 210009 Academy of Military Medical Sciences Beijing 100850

5-（5＂-Substituted phenyl-[1＂,3＂,4＂]oxadiazol-2＂-yl methylsulfanyl）-3-pyridin-3′-yl- [1,2,4] triazol-4-yl amines la-j were quaternarized with methyl iodide to afford the corresponding methyl pyridinium salts 2a-j. The reduction of compounds 2 with NaBH4 in methanol gave the target compounds 5-（5＂-substituted phenyl-[1＂,3＂,4＂]oxadiazol-2＂-yl methylsulfanyl）-3-（1′-methyl-1＇,2＇,5＇,6＇-tetrahydropyridin-3＇-yl）-[1,2,4]triazol-4-ylamines 3a-j. The endothelium vascular relaxing activity of the target compounds were screened.

关键词： Tetrahydropyridine triazolylamine oxadiazole muscarinic agonist vascular activity.

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High Tensile Strength and Superelasticity of Directionally Solidified Ti_(30)Ni_(30)Fe_(10)Hf_(10)Nb_(20) Eutectic High Entropy Alloy

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Acta Metallurgica Sinica(English Letters) 2022年第10期35卷 1583-1590页

作者： Huan Li Shuai Zeng Yong-Kang Zhou hai-long Li Hong-Wei Zhang hai-Feng Zhang Zheng-wang Zhu Shi-Changxu Innovation Center for Advanced MaterialsInstitute of Metal Research Chinese Academy of SciencesShenyang110016China School of Materials Science and Engineering University of Science and Technology of ChinaHefei230026China CAS Key Laboratory of Nuclear Materials and Safety Assessment Institute of Metal ResearchChinese Academy of SciencesShenyang110016China

Superelasticity has been widely used in various *** elastic limit simultaneously with large superelasticity is urgent in the critical *** this study,we have employed the high entropy alloy(HEA)concept to develop a new TiHfNiFe-Nb eutectic HEA(EHEA)based on the TiNi-Nb eutectic *** results show the directional catkin-like microstructure with the fiber eutectic in the center and the lamella eutectic in the outside form along the directional solidification direction when the growth rate is 60 mm/*** corresponding specimens display the high strength of 1409 MPa and superelasticity of 3.1%in tension at room temperature,which is attributed to the synergetic effect of high entropy,preferred orientation,ordered body-centered cubic(B2)phase and disordered body-centered cubic phase in the eutectic *** work sheds light on designing the high-performance superelastic function materials with EHEAs.

关键词： High-entropy alloy Eutectic alloy Directional solidification Superelasticity Tensile strength

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Activation of urchin-like Ni-doped W_(18)O_(49)/NF by electrochemical tuning for efficient water splitting

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Journal of Energy Chemistry 2021年第12期30卷 642-650,I0015页

作者： Guojuan hai Jianfeng Huang Liyun Cao Koji Kajiyoshi long wang Liangliang Feng Jun Chen School of Material Science and Engineering International S&T Cooperation Foundation of Shaanxi ProvinceXi’an Key Laboratory of Green Manufacture of Ceramic MaterialsShaanxi University of Science and TechnologyXi’an 710021ShaanxiChina Intelligent Polymer Research Institute ARC Centre of Excellence for Electromaterials ScienceAustralian Institute for Innovative MaterialsInnovation CampusUniversity of WollongongNSW 2500Australia Kochi University Research Laboratory of Hydrothermal ChemistryKochi 780-8520Japan Faculty of Engineering and Information Sciences University of WollongongNorthfields AvenueWollongongNSW 2522Australia

The electrochemical conversion is closely correlated with the electrocatalytic activities of the ***,the urchin-like Ni-doped W_(18)O_(49)/NF with enriched active sites was prepared by solvothermal method followed by a low-temperature pyrolysis treatment was *** demonstrate that the incorporation of Ni-doping triggers the lattice distortion of W_(18)O_(49) for the increasement of oxygen ***,high-valent W^(6+)are partially reduced to low-valent W^(4+),wherein the electrons originate from the oxidation process of Ni^(2+)to Ni^(3+).The Ni^(3+)ions show an enhanced orbital overlap with the OER reaction *** generated W^(4+)ions contribute to release oxygen vacancies,eventually reorganizing Ni-doped W_(18)O_(49)/NF to unique electrochemical active species with a special amorphous-crystalline interface(AM/NiWO_x/NiOOH/NF).Simultaneously,the reconstruction results in an optimized valence band and conduction ***,the resultant AM/NiWO_x/NiOOH/NF with abundant active sites and improved oxidation/reduction capability exhibits more superior catalytic performance compared with the Ni-doped W_(18)O_(49)/NF *** study gives more insights in the electrochemical evolution of the tungsten-based oxide and provides effective strategies for optimizing the catalytic activity of materials with inherent hydrogen evolution reaction limitations.

关键词： Ni-doped W_(18)O_(49)/NF Electrocatalyst Electrochemical activation Water splitting

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Synthesis,Structure,Luminescence and Thermal Stability Properties of a New(3,4)-Connected 2D Zn Coordination Polymer

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Chinese Journal of Structural Chemistry 2020年第10期39卷 1835-1840,1743页

作者： wang hai-Peng wang Hong-Liang LI Bao-long School of Chemistry and Environmental Engineering Shanxi Datong UniversityDatongShanxi 037009China Institute of Materials Science&Department of Chemistry Xinzhou Teachers UniversityXinzhouShanxi 034000China State and Local Joint Engineering Laboratory for Functional Polymeric Materials College of ChemistryChemical Engineering and Materials ScienceSoochow UniversitySuzhou 215123China

A new zinc coordination polymer{[Zn2(ttmb)2(dca)4(H2O)].H2O}n(1.H2O)was synthesized by the reaction of 1,3,5-tris(1,2,4-triazol-1-ylmethyl)benzene(ttmb),Zn(Ⅱ)salt and sodium dicyanamide(Na(dca)).The structure of the title compound was determined by single-crystal X-ray diffraction,elemental analyses and IR spectra.1 exhibits a(3,4)-connected 2D double-layer network with the point symbol of{63}{(66}.The solid-state luminescence shows a strong emission band at 485 nm upon excitation at 384 *** thermal stability properties were also studied.

关键词： coordination polymer structure (3 4)-connected luminescence thermal stability properties

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Preparation and properties of hot-deformed magnets processed from nanocrystalline/amorphous Nd-Fe-B powders

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Rare Metals 2021年第8期40卷 2033-2039页

作者： Peng Zhao Yang Luo Dun-Bo Yu hai-Jun Peng Wen-long Yan Zi-long wang Xin-Yuan Bai National Engineering Research Center for Rare Earth Materials General Research Institute for Nonferrous MetalsBeijing100088China Grirem Advanced Materials Co. LtdBeijing100088China

The hot-deformed magnets processed from nanocrystalline/amorphous Nd-Fe-B powders were preparedunderdifferenthot-pressingtemperatures(600-750℃,at intervals of 25℃)by the self-made hotpressing *** microstructure and magnetic properties of hot-deformed magnets prepared at different temperatures were also *** the temperature is above 650℃,the density of magnet reaches 7.5 g·cm^(-3).The optimum magnetic properties of magnetic induction intensity of B_(r)=1.3 T,optimum energy product of(BH)_(max)=282.5 kJ·m^(-3),intrinsiccoercivityof H_(cj)=1130.0 kA·m-1 of hot-deformed magnets are obtained at hot-pressing temperature of 650℃.X-ray diffractometer pattern shows that the(00 L)texture has been *** the microstructural characteristic,on the one hand,the good magnetic performance is attributed to the fine platelet-like grains with an average length of 410-440 nm at the hot-pressing temperature range from625 to 675℃.On the other hand,the unaligned coarse grains are observed in all the *** the areal fraction of those is gradually increasing with the rise of the hot-pressing temperature,which tends to deteriorate the magnetic *** composition map shows the accumulation of Nd/Pr-rich phase in the coarse grains’region.

关键词： Nanocrystalline/amorphous powders Hotpressing temperature Hot-deformed Magnets Magnetic properties Microstructure

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Alloying design and microstructural control strategies towards developing Mg alloys with enhanced ductility

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Journal of Magnesium and Alloys 2022年第5期10卷 1191-1206页

作者： Zhong-Zheng Jin Min Zha Si-Qing wang Shi-Chao wang Cheng wang hai-long Jia Hui-Yuan wang Key Laboratory of Automobile Materials of Ministry of Education&School of Materials Science and Engineering Nanling CampusJilin UniversityNo.5988 Renmin StreetChangchun 130025China International Center of Future Science Jilin UniversityChangchun 130012China State Key Laboratory of Superhard Materials Jilin UniversityChangchun 130012China

Nowadays,magnesium(Mg)alloys are promising lightweight structural materials,especially in transportation and aerospace fields,due to their inherent low density and high specific *** of the high-strength Mg alloys exhibit poor formability and ductility at room temperature,which limit their wide ***,by proper alloying design and/or delicate microstructural control,some newly developed Mg alloys,including rare-earth(RE)and RE-free ones,show enhanced ductility without significant loss of *** identify the critical reasons,recent researches on ductile Mg alloys have been reviewed from the aspects of alloying design strategies and microstructural control via advanced processing ***,some outlooks on enhanced ductility of Mg alloys are suggested,*** the beneficial effect of solute atoms,introducing second phase particles,tailoring bimodal-grained structures,introducing pre-twinning structures,*** current research progresses in alloying design and/or novel microstructural control have shed some lights on designing and producing Mg alloys with enhanced ductility.

关键词： Mg alloys Alloying Microstructure Ductility Strength

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Synergistically enhanced ORR and HER performance on Co-N-C coupled in-situ generated PtCo intermetallic

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Journal of Energy Chemistry 2025年第1期100卷 721-729页

作者： Guanyu Luo Min Song Lulu An Xiao Huang Qian Zhang Chenhao Zhang Tao Shen Shuang wang Deli wang Key Laboratory of Material Chemistry for Energy Conversion and Storage (Huazhong University of Science and Technology) Ministry of Education School of Chemistry and Chemical Engineering Huazhong University of Science and Technology

Integrating multi-scale sites in a composite catalyst is vital to realize efficient ***,a synergistic composite catalyst consisting of Co atomic sites and in-situ generated PtCo intermetallic compounds （IMCs）(o-PtCo@CoNC) is proposed through Co pre-anchoring and subsequent impregnation-reduction *** loading of Co atoms provides a chance for in-situ generating PtCo ordered intermetallic *** remaining Co single atoms and PtCo IMCs construct synergistic electrocatalytic *** from the ordered structure,synergistic effect of Pt Co IMCs and Co single atoms,o-PtCo@CoNC exhibits excellent electrocatalytic performance for oxygen reduction reaction （ORR） and hydrogen evolution reaction （HER） with mass activity of 1.21 A mgPt-1（at 0.9 V） and5.70 A mgPt-1（at an overpotential of 100 mV）,***,o-PtCo@CoNC delivers negligible loss of half-wave potential and overpotential during long-term stability test in acid solutions,with 13 mV decay after 50,000 potential cycles for ORR and a 2.7 mV decay after 20,000 potential cycles for *** integration strategy of single-atomic sites coupled IMCs paves the way for enhancing the activity and durability of Pt-based electrocatalysts.

关键词： Electrolytic reduction

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^(18)F-DG PET/CT in detection of recurrence and metastasis ofcolorectal cancer

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World Journal of Gastroenterology 2007年第37期13卷 5025-5029页

作者： long-Bang Chen Jin-long Tong hai-Zhu Song Hong Zhu Yu-Cai wang Department of Medical Oncology Jinling Hospital Schoolof Medicine Nanjing University Nanjing 210002 JiangsuProvince China Department of Nuclear Medicine Jinling HospitalSchool of Medicine Nanjing University Nanjing 210002 JiangsuProvince China

AIM: To evaluate the value of 18F-DG PET/CT in detecting recurrence and/or metastasis of colorectal cancer (CRC). METHODS: Combined visual analysis with semiquantitative analysis, the 18F-DG PET/CT whole- body imaging results and the corresponding clinical data of 68 postoperative CRC patients including 48 male and 20 female with average age of 58.1 were analyzed retrospectively. RESULTS: Recurrence and/or metastasis were confirmed in 56 patients in the clinical follow-up after the PET/CT imaging. The sensitivity of PET/CT diagnosis of CRC recurrence and/or metastasis was 94.6%, and the specificity was 83.3%. The positive predictive value (PPV) was 96.4% and the negative predictive value (NPV) was 76.9%. PET/CT imaging detected one or more occult malignant lesions in 8 cases where abdominal/pelvic CT and/or ultrasonography showed negative findings, and also detected more lesions than CT or ultrasonography did in 30.4% (17/56) cases. Recurrence and/or metastasis was detected in 91.7% (22/24) cases with elevated serum CEA levels by 18F-DG PET/CT imaging. CONCLUSION: 18F-DG PET/CT could detect the recurrence and/or metastasis of CRC with high sensitivity and specificity.

关键词： Colorectal cancer Recurrence Metastasis Positron emission tomography Computed tomography

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