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Relations.ips between Terrain Features and Forecas.ing Errors of surface Wind speeds.in a Mesoscale Numerical Weather Prediction Model

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Advances.in Atmospheric s.iences 2024年第6期41卷 1161-1170页

作者： wenbo XUE Hui YU shengming TANG Wei HUANG Chinese Academy of Meteorological s.iences Beijing 100081China University of Chinese Academy of s.iences Beijing 101408China shanghai Typhoon ins.itute/CMA Shanghai 200030China Key Laboratory of Numerical Modeling for Tropical Cyclone/CMA Shanghai 200030China

Numerical weather prediction(NWP)models have always presented large forecas.ing errors of surface wind speeds over regions with complex *** this study,surface wind forecasts from an operational NWP model,the sMs-WARR(shanghai Meteorological service-WRF ADAs Rapid Refresh system),are analyzed to quantitatively reveal the relations.ips between the forecasted surface wind speed errors and terrain features,with the intent of providing clues to better apply the NWP model to complex terrain *** terrain features are described by three parameters:the standard deviation of the model grid-scale orography,terrain height error of the model,and slope *** results show that the forecast bias has a unimodal distribution with a change in the standard deviation of *** minimum ME(the mean value of bias.is 1.2 m s^(-1) when the standard deviation is between 60 and 70 m.A positive correlation exists between bias and terrain height error,with the ME increasing by 10%−30%for every 200 m increase in terrain height *** ME decreases by 65.6%when slope angle increases from(0.5°−1.5°)to larger than 3.5°for uphill winds but increases by 35.4%when the absolute value of slope angle increases from(0.5°−1.5°)to(2.5°−3.5°)for downhill *** sensitivity experiments are carried out with a model output statis.ical(MOs)calibration model for surface wind speeds and ME(RMsE)has been reduced by 90%(30%)by introducing terrain parameters,demonstrating the value of this study.

关键词： surface wind speed terrain features error analysis MOs calibration model

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Thermal decomposition mechanism and kinetics of bastnaesite in suspension roas.ing process:A comparative study in N_(2) and air atmospheres

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Journal of Rare Earths 2024年第9期42卷 1809-1816,I0006页

作者： wenbo Li Jijia Chen shaokai Cheng Junyan sun Xiaolong Zhang school of Resources and Civil Engineering Northeastern UniversityShenyang110819China National-Local Joint Engineering Research Center of High-Efficient Exploitation Technology for Refractory iron Ore Resources Shenyang110819China

To inves.igate the thermal decomposition behavior and reaction kinetics of bastnaesite in suspension roas.ing,the gas and solid products of bastnaesite roasted in N2 and air atmospheres were examined using a gas analyzer,X-ray diffraction(XRD),scanning electron microscopy(sEM),and energy dispersive spectrometry(EDs).subsequently,the kinetic parameters of bastnaesite in the suspension roas.ing process were derived and calculated using the isothermal *** results show that the decomposition product of bastnaesite in N_(2) is ***,once the roas.ing temperature exceeds 600℃,CO is generated in addition to CO_(2),and all the XRD diffraction peaks of CeOF are s.ifted to the right,indicating that CO_(2) can oxidize CeOF and lead to the transformation of Ce(Ⅲ) into Ce(Ⅳ).When roasted in air,the decomposition product CeOF can be completely converted to CeF3 and Ce_(7)O_(12) as.it easily ***,the reaction rate of bastnaesite in air is higher than that of N_(2),and the starting reaction temperature is lower than that of N_(2).A large number of irregular cracks and holes appear on the surface of solid-phase products following suspension roas.ing,which are due to the thermal decomposition of bastnaesite that produces CO_(2) as well as the reconstruction of the lattice of the solid-phase *** reaction kinetic model of bastnaesite roasted in N_(2)(temperature range 600-750℃) and air(temperatu re range 500-575℃) confo rms to the A_(3/2) model with the mechanism function G(α)=-ln(1-α)^(2/3),and the reaction activation energy is 59.78 kj/mol and lnA is 1.65 s^(-1) in N_(2) *** air,the reaction activation energy is 100.30 kj/mol and lnA is 9.63 s^(-1).

关键词： Rare earths Bastnaesite suspension roas.ing Thermal decomposition mechanism Reaction kinetics

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study on the properties of solar cell under bias condition by using impedance spectroscopy

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Optoelectronics Letters 2024年第9期20卷 518-522页

作者： XiAO wenbo Li Ao XiAo Bangzhi Key Laboratory of Nondestructive Test Ministry of EducationNanchang Hangkong UniversityNanchang 330063China s.ience and Technology College Nanchang Hangkong UniversityGongqingcheng 332020China school of Engineering and Construction Nanchang UniversityNanchang 330031China

This paper inves.igates the properties of silicon cells(si)and perovs.ite solar cells(PsC)under bias condition by using impedance *** parallel resistances R_(p) of si and PsC are found to decrease with increasing bias,but the capacitance C_(p) shows the opposite *** Rp with C_(p),bias has a greater impact on the C_(p) of both cells.

关键词： spectroscopy impedance condition

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Nest complexity correlates with larger brain size but smaller body mass across bird species

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integrative Zoology 2024年第3期19卷 496-504页

作者： shaobin Li Yuxin LiU Xiaolong DU Guopan Li wenbo LiAO College of Life s.ience Yangtze UniversityJingzhouChina Key Laboratory of southwest China Wildlife Resources Conservation(Ministry of Education) China West Normal UniversityNanchongChina

Amniotes differ substantially in absolute and relative brain size after controlling for allometry,and numerous hypotheses have been proposed to explain brain size *** size is thought to correlate with proces.ing capacity and the brain’s ability to support complex manipulation such as nest-building *** increased complexity of nest structure is supposed to be a measure of an ability to manipulate nes.ing material into the required *** degree of nest-structure complexity is also supposed to be associated with body mass,partly because small species lose heat faster and delicate and insulated nests are more crucial for temperature control of eggs during incubation by small ***,we conducted comparative analyses to test these hypotheses by inves.igating whether the complexity of species-typical nest structure can be explained by brain size and body mass(a covariate also to control for allometric effects on brain size)across 1353 bird species from 147 *** with these hypotheses,our results revealed that avian brain size increases as the complexity of the nest structure increases after controlling for a significant effect of body size,and also that a negative relations.ip exists between nest complexity and body mass.

关键词： body size brain size comparative analysis nest building nest type reproductive investment

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Hematite-facilitated microbial ammoxidation for enhanced nitrogen removal in constructed wetlands

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Frontiers of Environmental s.ience & Engineering 2024年第7期18卷 35-45页

作者： Hao Qin wenbo Nie Duo Yi Dongxu Yang Mengli Chen Tao Liu Yi Chen Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment(Ministry of Education) Chongqing UniversityChongqing 400045China College of Environment and Ecology Chongqing UniversityChongqing 400045China Faculty of Geos.iences and Environmental Engineering Southwest Jiaotong UniversityChengdu 610031China

Constructed wetlands(CWs)are widely applied for decentralized wastewater ***,achieving efficient removal of ammonia(NH+-N)has proven challenging due to insufficient *** this study,natural hematite(Fe,O3)was employed as a CW substrate(H-CWs)for the first time to drive anaerobic ammonia oxidation coupled with iron(i)reduction(Feammox).Compared to gravel constructed wetlands(G-CWs),ammonia removal was enhanced by 38.14%to 54.03%and nitrous oxide(N_(2)0)emis.ions were reduced by 34.60%in *** synergis.ic removal of ammonia and nitrate by H-CWs also resulted in the absence of ammoxidation *** and 15N isotope tracer incubations showed that Feammox accounting for approximately 40%of all ammonia removal in the *** enrichment of iron phosphate(Fe_(3)Fe_(4)(PO_(4))_(6))promoted the accumulation of the Feammox intermediate compound *** nanowires were observed on the surface of H-CW substrates as well,sugges.ing that the observed biological ammoxidation was most likely related to extracellular electron transfer(EET).Microbial and metagenomics analysis revealed that H-CWs elevated the integrity and enhanced the abundance of functional microorganisms and genes associated with nitrogen ***,the efficient ammonia removal in the absence of O2 together with a reduction in N_(2)O emis.ions as described in this study may provide useful guidance for hematite-mediated anaerobic ammonia removal in CWs.

关键词： Constructed wetlands Nitrogen removal Feammox Hematite iron cycle

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Comparative analysis of 12 water lily plas.id genomes reveals genomic divergence and evolutionary relations.ips.in early flowering plants

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Marine Life s.ience & Technology 2024年第3期6卷 425-441页

作者： Weicai song wenbo s.i Huan Wang Zirui Zhang Ruiqing Tao Jin Liu shuo Wang Michael s.Engel Chao s.i College of Marine s.ience and Biological Engineering Qingdao University of Science and TechnologyQingdao 266042China Plant Germplasm and Genomics Center Germplasm Bank of Wild Species in Southwest ChinaKunming Institute of BotanyThe Chinese Academy of SciencesKunming 650204China Yunnan ins.itute of Tropical Crops Xishuangbanna 666100China American Museum of Natural History New YorkNY 10024-5192USA Natural History Museum and Department of Ecology&Evolutionary BiologyUniversity of KansasLawrenceKS 66045USA

The aquatic plant Nymphaea,a model genus of the early flowering plant lineage Nymphaeales and family Nymphaeaceae,has been extensively ***,the availability of chloroplast genome data for this genus.is.incomplete,and phylogenetic relations.ips within the order Nymphaeales remain *** this study,12 chloroplast genomes of Nymphaea were assembled and analyzed for the first *** genomes were 158,290-160,042 bp in size and contained 113 non-repeat genes.including 79 protein-coding genes,30 tRNA genes,and four rRNA *** also report on codon usage,RNA editing sites,microsatellite structures,and new repetitive sequences.in this *** genomics revealed that expansion and contraction of iR regions can lead to changes.in the gene ***,it was observed that the highly variable regions of the chloroplast genome were mainly located in intergenic ***,the phylogenetic tree showed the order Nymphaeales was divided into three families,and the genus Nymphaea can be divided into five(or three)subgenera,with the subgenus Nymphaea being the *** divergence times of nymphaealean taxa were analyzed,with origins of the order Nymphaeales and family Nymphaeaceae being about 194 and 131 million years,*** results of the phylo-genetic analysis and es.imated divergence times will be useful for future evolutionary studies of basal angiosperm lineages.

关键词： Aquatic plants Nymphaea Phylogenetic analysis Plas.id genomics structural variation

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Bimetallic CoNi single atoms supported on three-dimensionally ordered mesoporous chromia:highly active catalysts for n-hexane combus.ion

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Green Energy & Environment 2024年第7期9卷 1122-1137页

作者： Xiuqing Hao Yuxi Liu Jiguang Deng Lin Jing Jia Wang wenbo Pei Hongxing Dai Beijing Key Laboratory for Green Catalysis and separation Key Laboratory of Beijing on Regional Air Pollution ControlKey Laboratory of Advanced Functional MaterialsEducation Ministry of ChinaLaboratory of Catalysis Chemistry and NanoscienceDepartment of Chemical EngineeringFaculty of Environment and LifeBeijing University of TechnologyBeijing100124China

Developing the alternative supported noble metal catalysts with low cost,high catalytic efficiency,and good resistance toward carbon dioxide and water vapor is critically demanded for the oxidative removal of volatile organic compounds(VOCs).in this work,we prepared the mesoporous chromia-supported bimetallic Co and Ni single-atom(Co_(1)Ni_(1)/meso-Cr_(2)O_(3))and bimetallic Co and Ni nanoparticle(Co_(NP)Ni_(NP)/mesoCr_(2)O_(3))catalysts adopting the one-pot polyvinyl pyrrolidone(PVP)-and polyvinyl alcohol(PVA)-protecting approaches,*** results.indicate that the Co_(1)Ni_(1)/meso-Cr_(2)O_(3)catalyst exhibited the best catalytic activity for n-hexane(C_(6)H_(14))combus.ion(T_(50%)and T_(90%)were 239 and 263℃ at a space velocity of 40,000 mL g^(-1)h^(-1);apparent activation energy and specific reaction rate at 260℃ were 54.7 kJ mol^(-1)and 4.3×10^(-7)mol g^(-1)_(cat)s^(-1),respectively),which was associated with its higher(Cr^(5+)+Cr^(6+))amount,large n-hexane adsorption capacity,and good lattice oxygen mobility that could enhance the deep oxidation of n-hexane,in which Ni_(1) was beneficial for the enhancements.in surface lattice oxygen mobility and low-temperature reducibility,while Co_(1) preferred to generate higher contents of the high-valence states of chromium and surface oxygen species as well as adsorption and activation of n-hexane.n-Hexane combus.ion takes place via the Mars van Krevelen(MvK)mechanism,and its reaction pathways are as follows:n-hexane→olefins or 3-hexyl hydroperoxide→3-hexanone,2-hexanone or 2,5-dimethyltetrahydrofuran→2-methyloxirane or 2-ethyl-oxetane→acrylic acid→CO_x→CO_(2)and H_(2)O.

关键词： Three-dimensional ordered mesoporous chromium oxide supported bimetallic single-atom catalyst Cobalt-nickel single atoms n-Hexane combus.ion Catalytic reaction mechanism

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Case Report: surgical Correction of Transposition of the Great Arteries with Aortopulmonary Window

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Congenital Heart Disease 2024年第3期19卷 275-278页

作者： Qiqi s.i Xuan Lei wenbo Zhang Ming Ye Department of Cardiothoracic surgery Children’s Hospital of Fudan UniversityShanghai201102China Department of Pediatrics Children’s Hospital of Fudan University(Xiamen Branch)Xiamen Children’s HospitalXiamen361006China

introduction:Transposition of the great arteries(TGA)with aortopulmonary window is a rare type of congenital heart disease with limited *** reported a neonate aged 25 days receiving the arterial s.itch operation and as.isted with extracorporeal membrane ***:TGA with aortopulmonary window can be safely correctly with the arterial s.itch operation.

关键词： Transposition of the great arteries aortopulmonary window arterial s.itch operation

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Molecular Dynamics simulation of shock Response of CL-20 Co-crystals Containing Void Defects

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Defence Technology（防务技术） 2024年第1期31卷 364-374页

作者： Changlin Li Wei Yang Qiang Gan Yajun Wang Lin Liang wenbo Zhang shuangfei Zhu Changgen Feng state Key Laboratory of Explosion s.ience and Technology Beijing Institute of TechnologyBeijing 100081China school of Materials s.ience&Engineering Beijing Institute of TechnologyBeijing 100081China

To inves.igate the effect of void defects on the shock response of hexanitrohexaazaisowurtzitane(CL-20)co-crystals,shock responses of CL-20 co-crystals with energetic materials ligands trinitrotoluene(TNT),1,3-dinitrobenzene(DNB),solvents ligands dimethyl carbonate(DMC) and gamma-butyrolactone(GBL)with void were simulated,using molecular dynamics method and reactive force *** is found that the CL-20 co-crystals with void defects will form hot spots when impacted,significantly affecting the decomposition of molecules around the *** degree of molecular fragmentation is relatively low under the reflection velocity of 2 km/s,and the main reactions are the formation of dimer and the shedding of nitro *** existence of voids reduces the safety of CL-20 co-crystals,which induced the sensitivity of energetic co-crystals CL-20/TNT and CL-20/DNB to increase more *** has occurred under the reflection velocity of 4 km/s,energetic co-crystals are easier to polymerize than solvent co-crystals,and are not obviously affected by *** results show that the energy of the wave decreases after sweeping over the void,which reduces the chemical reaction frequency downstream of the void and affects the detonation performance,especially the solvent co-crystals.

关键词： CL-20 co-crystals Molecular dynamics simulation Reactive forcefield impact response Hot spot Void defect

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study on impedance spectroscopy based on dynamic equivalent circuit of solar cell

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Optoelectronics Letters 2024年第8期20卷 449-453页

作者： XiAO wenbo Li Ao WU Huaming Li Yongbo XiAo Bangzhi Key Laboratory of Nondestructive Tes.ing Ministry of EducationNanchang Hangkong UniversityNanchang 330063China Jiangxi Engineering Laboratory for Optoelectronics Tes.ing Technology Nanchang 330063China College of s.ience and Technology Nanchang Hangkong UniversityGongqingcheng 332020China school of Engineering and Construction Nanchang UniversityNanchang 330031China

This paper inves.igates the impedance spectroscopy of monocrystalline silicon solar cells(MssC)and dye-sensitized solar cells(DssC)using solar cell dynamic equivalent resistor-capacitance(RC)and capacitor sum capacitor(CsC)***,these circuits effectively represent the dynamic behavior of MssC and ***,the measurement method significantly impacts the accuracy of impedance measurements.in the high-frequency ***,the series resistance affects the distance between the left end of the impedance spectroscopy and the origin,while the parallel resistance influences the size of the impedance *** the CsC circuit,the relative magnitudes of dielectric relaxation capacitance and chemical capacitance affect the number and position of arc in the impedance *** value of the dielectric relaxation capacitor determines the number of impedance spectroscopy *** conclusions provide guidelines for improving the accuracy of solar cell impedance measurements.

关键词： spectroscopy impedance capacitance

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