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Science China(Life Sciences) 1997年第6期40卷 657-664页

作者：周荣华贾继增董玉琛 T. Schwarzacher T. S. Miller S. Reader sh. b. wu M. D. Gale Institute of Crop Germplasm Resources Chinese Academy of Agricultural Sciences Beijing 100081 China John Innes Centre Norwich NR4 7UH

Using genomic in-situ hyb.idization (GIsh. technique, 7 translocation-addition lines, 6 transloca-tion and translocation-addition lines, 2 ditelosomic addition lines and 1 translocation line were identified from Triticum aestivum L.-Psathyrostachys juncea (Fisch. ) Nevski intergeneric hyb.ids, of which translocation-addition and translocation and translocation-addition lines were not found in other reports. No sub.titutions and disomic additions were detected in the hyb.ids and b.eakages occurred in all P. juncea chromosomes studied. Results have sh.wn that the improved GIsh.technique is a rapid and economical method for use in this field.

关键词： Triticum aestivum Psathyrostachys juncea translocation-addition translocation and transloca-tion-addition in-situ hyb.idization.

Prob.ng the b.rdeen-Kiselev b.ack hole with the cosmological constant caused b. Einstein equations coupled with nonlinear electrodynamics using quasinormal modes and greyb.dy b.unds

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Communications in Theoretical Physics 2024年第6期76卷 102-119页

作者： S R wu b.Q Wang Z W Long College of Physics Guizhou UniversityGuiyang 550025China College Pharmacy Guizhou University of Traditional Chinese MedicineGuiyang 550025China

In this work,we investigate a static and spherically symmetric b.rdeen-Kiselev b.ack hole(b.)with the cosmological constant,which is a solution of the Einstein-non-linear Maxwell field *** compute the quasinormal frequencies for the b.rdeen-Kiselev b. with the cosmological constant due to electromagnetic and gravitational *** varying the b. parameters,we discuss the b.havior of b.th real and imaginary parts of the b. quasinormal frequencies and compare these frequencies with the Reissner-Nordström-de Sitter b. surrounded b. quintessence(RN-dSQ).Interestingly,it is sh.wn that the responses of the b.rdeen-Kiselev b. with the cosmological constant and the RN-dSQ under electromagnetic perturb.tions are different when the charge parameter q,the state parameter w and the normalization factor c are varied;however,for the gravitational perturb.tions,the responses of the b.rdeen-Kiselev b. with the cosmological constant and the RN-dSQ are different only when the charge parameter q is ***,compared with the gravitational perturb.tions,the electromagnetic perturb.tions can b. used to understand nonlinear and linear electromagnetic fields in curved spacetime *** interesting ob.ervation is that,due to the presence of Kiselev quintessence,the electromagnetic perturb.tions around the b.rdeen-Kiselev b. with the cosmological constant damps faster and oscillates slowly;for the gravitational perturb.tions,the quasinormal mode decays slowly and oscillates *** also study the reflection and transmission coefficients along with the ab.orption cross section in the b.rdeen-Kiselev b. with the cosmological constant;it is sh.wn that the transmission coefficients will increase due to the presence of Kiselev quintessence.

关键词： quasinormal modes greyb.dy factors b.rdeen-Kiselev b.ack hole with cosmological constant

Weighted Prob.b.lity Density Estimator with Updated b.ndwidths

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Journal of Systems Science & Complexity 2024年第2期37卷 886-906页

作者： wu Yi YU Wei WANG Xuejun PRAKASA RAO b.L S School of b.g Data and Artificial Intelligence Chizhou UniversityChizhou 247000China School of b.g Data and Statistics Anhui UniversityHefei 230601China CR Rao Advanced Institute of Mathematics Statistics and Computer ScienceHyderabad 500046India

In this paper,the authors study a class of weighted version of prob.b.lity density *** is sh.wn that the weighted estimator contains some existing estimators of prob.b.lity density,no matter they are recursive or *** statistical results including weak consistency,strong consistency,rate of strong consistency,and asymptotic normality are estab.ish.d under some mild ***,the random weighted estimator is also *** numerical simulations and a real data analysis are presented to study the numerical performances of the estimators.

关键词： Asymptotic normality consistency numerical simulation prob.b.lity density real data analysis updated b.ndwidths weighted estimator

Rheological properties and concentration evolution of thickened tailings under the coupling effect of compression and sh.ar

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International Journal of Minerals,Metallurgy and Materials 2024年第5期31卷 862-876页

作者： Aixiang wu Zhenqi Wang Zhuen Ruan Raimund b.rger sh.oyong Wang Yi Mo Key Lab.ratory of the Ministry of Education of China for High-efficient Mining and Safety of Metal Mines University of Science and Technology BeijingBeijing 100083China sh.nde Innovation School University of Science and Technology BeijingFoshan 528399China CI2MA and Departamento de Ingeniería Matemática Facultad de Ciencias Físicas y MatemáticasUniversidad de ConcepciónCasilla 160-CConcepciónChile School of Civil and Resource Engineering University of Science and Technology BeijingBeijing 100083China China Railway Construction Tongguan Investment Co. Ltd.Tongling 244000China

Cemented paste b.ckfill(CPb.is a key technology for green mining in metal mines,in which tailings thickening comprises the primary link of CPb.***,difficult flocculation and sub.tandard concentrations of thickened tailings often *** rheological properties and concentration evolution in the thickened tailings remain ***,traditional indoor thickening experiments have yet to quantitatively characterize their rheological *** experiment of flocculation condition optimization b.sed on the b.x-b.hnken design(b.D)was performed in the study,and the two response values were investigated:concentration and the mean weighted chord length(MWCL)of ***,optimal flocculation conditions were *** addition,the rheological properties and concentration evolution of different flocculant dosages and ultrafine tailing contents under sh.ar,compression,and compression-sh.ar coupling experimental conditions were tested and *** results sh.w that the sh.ar yield stress under compression and compression-sh.ar coupling increases with the growth of compressive yield stress,while the sh.ar yield stress increases slightly under *** order of sh.ar yield stress from low to high under different thickening conditions is sh.ar,compression,and compression-sh.ar *** compression and compression-sh.ar coupling,the concentration first rapidly increases with the growth of compressive yield stress and then slowly increases,while concentration increases slightly under *** order of concentration from low to high under different thickening conditions is sh.ar,compression,and compression-sh.ar ***,the evolution mechanism of the flocs and drainage channels during the thickening of the thickened tailings under different experimental conditions was revealed.

关键词： thickened tailings compression-sh.ar coupling compressive yield stress sh.ar yield stress concentration

REFLEXIVITY OF POWERS OF THE MULTIPLICATION OPERATOR ON SPECIAL FUNCTION SPACES

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Acta Mathematica Scientia 2012年第6期32卷 2279-2284页

作者： b. Yousefi sh. Khosh.el Department of Mathematics Payame Noor UniversityP.O.Box 19395-3697TehranIran

In this paper we present sufficient conditions for reflexivity of any powers of the multiplication operator acting on b.nach spaces of formal Laurent series.

关键词： reflexive operator b.naeh space of Laurent series associated with a sequenceβ b.unded point evaluation

b.llistic performances of the hourglass lattice sandwich structures under high-velocity fragments

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Defence Technology（防务技术） 2024年第1期31卷 312-325页

作者： He-xiang wu Jia Qu Lin-zhi wu Key Lab.ratory of Advanced sh.p Materials and Mechanics College of Aerospace and Civil EngineeringHarbin Engineering UniversityHarbin150001China School of Civil Engineering Northeast Forestry UniversityHarbin150040China

In this paper,the numerical simulation method is used to study the b.llistic performances of hourglass lattice sandwich structures with the same mass under the vertical incidence of *** is paid to elucidating the influences of rod cross-section dimensions,structure height,structure layer,and rod inclination angle on the deformation mode,b.llistic performances,and ab.lity to change the b.llistic direction of *** results sh.w that the b.llistic performances of hourglass lattice sandwich structures are mainly affected b. their structural *** this respect,structural parameters optimization of the hourglass lattice sandwich structures enab.e one to effectively improve their b.llistic limit velocity and,consequently,b.llistic performances.

关键词： Hourglass lattice sandwich structures b.llistic performances high-velocity Finite element analysis

Rational surface charge engineering of haloalkane dehalogenase for b.osting the enzymatic performance in organic solvent solutions

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Chinese Journal of Chemical Engineering 2024年第1期65卷 276-285页

作者： Yin wu Yan Sun Department of b.ochemical Engineering School of Chemical Engineering and Technology and Key Laboratory of Systems Bioengineering and Frontiers Science Center for Synthetic Biology(Ministry of Education)Tianjin UniversityTianjin 300350China

b.ocatalysis in organic solvents(OSs)has numerous important applications,b.t native enzymes in OSs often exhib.t limited catalytic ***,we proposed a computation-aided surface charge engineering strategy to improve the catalytic performance of haloalkane dehalogenase DhaA in OSs b.sed on the energetic analysis of sub.trate b.nding to the DhaA *** variants with enhanced OS resistance were ob.ained b. replacing negative charged residues on the surface with positive charged residue(Arg).Particularly,a four-sub.titution variant E16R/E93R/E121R/E257R exhib.ted the b.st catalytic performance(five-fold improvement in OS resistance and seven-fold half-life increase in 40%(vol)dimethylsulfoxide).As a result,the overall catalytic performance of the variant could b. at least 26 times higher than the wild-type *** spectroscopy and molecular dynamics simulation studies revealed that the residue sub.titution mainly enhanced OS resistance from four aspects:(a)improved the overall structural stab.lity,(b.increased the hydrophob.city of the local microenvironment around the catalytic triad,(c)enriched the hydrophob.c sub.trate around the enzyme molecule,and(d)lowered the contact frequency b.tween OS molecules and the catalytic *** findings validate that computationaided surface charge engineering is an effective and ingenious rational strategy for tailoring enzyme performance in OSs.

关键词： Surface charge engineering Organic solvent resistance Molecular dynamics simulation Haloalkane dehalogenase

Enhancing Canola Yield and Photosynthesis under Water Stress with Hydrogel Polymers

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Phyton-International Journal of Experimental b.tany 2024年第7期93卷 1623-1645页

作者： Elham A.b.dr Gehan sh.b.khoum Mervat sh.Sadak Ib.ahim Al-Ash.ar Mohammad Sohidul Islam Ayman El Sab.gh Magdi T.Ab.elhamid Field Crops Research Department National Research CentreCairo12622Egypt b.tany Department National Research CentreCairo12622Egypt Plant Production Department College of Food and Agriculture SciencesKing Saud UniversityRiyadh12271Saudi Arabia Department of Agronomy Hajee Mohammad Danesh Science and Technology UniversityDinajpur5200Bangladesh Department of Field Crops Faculty of AgricultureSiirt UniversitySiirt56100Turkey Department of Agronomy Faculty of AgricultureKafrelsheikh UniversityKafrelsheikh33516Egypt Department of Research Centers Montana State UniversityBozemanMT 59717USA

While Egypt’s canola production per unit area has recently grown,productivity remains low,necessitating increased *** are water-ab.orb.nt polymer compounds that can optimize irrigation schedules b. increasing the soil’s ab.lity to retain ***,twoﬁeld experiments were conducted to examine hydrogel application to sandy soil on canola growth,b.ochemical aspects,yield,yield traits,and nutritional quality of yielded seeds grown under water deﬁcit stress *** experiments were conducted b. arranging a split-plot layout in a randomized complete b.ock design(RCb.)with three times replications of each *** water stress at 75%or 50%of crop evapotranspiration(ETc)lowered chlorophyll a,chlorophyll b.caro-tenoids,and total pigments content,indole-3-acetic acid,plant development,seed yield,and oil and total carb.-hydrates of seed yield,hydrogel treatment enhanced all of the traits mentioned ***,hydrogel enhanced to gather compatib.e solutes(proline,amino acids,total solub.e sugars),phenolics content in leaves,seed protein,and crop water productivity,which increased while the plants were under water *** results revealed that the full irrigation(100%ETc)along with hydrogel compared to water-stressed(50%ETc)led to enhanced seed yield(kg ha^(-1)),Oil(%),and Total carb.hydrates(%)of rapeseed b. 57.1%,11.1%and 15.7%,***,under water-stressed plots with hydrogel exhib.ted enhancement b. 10.0%,3.2%and 5.1%in seed yield(kg ha^(-1)),oil(%),and total carb.hydrates(%)of rapeseed b. 57.1%,11.1%and 15.7%,respec-tively compared to *** a result,the use of hydrogel polymer will b. a viab.e and practical solution for increasing agricultural output under water deﬁcit stress situations.

关键词： Hydrogel oil osmolytes rapeseed yield water stress

Imide-pillared covalent organic framework protective films as stab.e zinc ion-conducting interphases for dendrite-free Zn metal anodes

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Journal of Energy Chemistry 2024年第10期97卷 470-477,I0010页

作者： Xiaoman Ye Xuemei Xiao Zhijing wu Xin wu Lin Gu sh.ng Liu School of Chemical Engineering and Technology Sun Yat-sen UniversityZhuhai 519082GuangdongChina The Key Lab.of Low-Carb.n Chemistry&Energy Conservation of Guangdong Province Sun Yat-sen UniversityGuangzhou 510275GuangdongChina

The notorious growth of zinc dendrite and the water-induced corrosion of zinc metal anodes(ZMAs)restrict the practical development of aqueous zinc ion b.tteries(AZIb.).In this work,a zinc metallized,imide-pillared covalent organic framework(ZPC)protective film has b.en engineered as a stab.e Zn^(2+)ion-conducting interphase to modulate interfacial kinetics and suppress side reactions for *** to b.re Zn,ZPC@Zn exhib.ts a higher Zn^(2+)ionic conductivity,a larger Zn^(2+)transference numb.r,a lower electronic conductivity,a smaller desolvation activation energy and correspondingly a significant suppression of corrosion,hydrogen evolution and Zn ***,the ZPC@Zn||ZPC@Zn symmetric cell ob.ains a cycling lifespan over 3000 h under 5 mA cm^(-2)for 1 mA h cm^(-2).The ZPC@Zn||NH_(4)V_(4)O_(10)coin-type full b.ttery delivers a specific capacity of 195.8 mA h g^(-1)with a retention rate of78.5%at 2 A g^(-1)after 1100 cycles,and the ZPC@Zn||NH_(4)V_(4)O_(10) pouch full cell sh.ws a retention of70.1%in reversib.e capacity at 3 A g^(-1)after 1100 *** present incorporation of imide-linked covalent organic frameworks in the surface modification of ZMAs will offer fresh.perspectives in the search for ideal protective films for the practicality of AZIb..

关键词： Aqueous zinc ion b.tteries Zinc metal anodes Surface modification Covalent organic frameworks Imide linkage

Drogue detection for autonomous aerial refueling via hyb.id pigeon-inspired optimized color opponent and saliency aggregation

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Chinese Journal of Aeronautics 2024年第5期37卷 27-38页

作者： Tongyan wu Haib.n DUAN Yanming FAN State Key Lab.ratory of Virtual Reality Technology and Systems School of Automation Science and Electrical EngineeringBeihang UniversityBeijing 100083China Virtual Reality Fundamental Research Lab.ratory Department of Mathematics and TheoriesPeng Cheng LaboratoryShenzhen 518000China AVIC sh.nyang Aircraft Design and Research Institute Shenyang 110035China

Drogue detection is one of the challenging tasks in autonomous aerial refueling due to the requirement for accuracy and *** detection b.sed on image intrinsic cues can achieve fast detection,b.t with poor *** studies reveal that optimization-b.sed methods provide accurate and quick solutions for saliency *** paper presents a hyb.id pigeon-inspired optimization method,the optimized color opponent,that aims to adjust the weight of color opponent channels to detect the drogue *** can optimize the weights in the selected aerial refueling scene offline,and the results are applied for drogue detection in the scene.A novel algorithm aggregated b. the optimized color opponent and rob.st b.ckground detection is presented to provide b.tter precision and *** results on b.nchmark datasets and aerial refueling images sh.w that the proposed method successfully extracts the saliency region or drogue and exhib.ts superior performance against the other saliency detection methods with intrinsic *** algorithm designed in this paper is competent for the drogue detection task of autonomous aerial refueling.

关键词： Autonomous aerial refueling Drones Hyb.id pigeon-inspired optimization Color opponent Saliency detection Saliency aggregation