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Spray characteristics of different regions downstream of a swirl cup

Chinese Journal of Aeronautics 2024年第8期37卷 124-143页

作者： Donghui WAnG yong huang Hongzhou ZHAnG Collaborative Innovation Center of Advanced Aero-Engine School of Energy and Power EngineeringBeihang UniversityBeijing 102206China national Key laboratory of Science and Technology School of Energy and Power EngineeringBeihang UniversityBeijing 102206China

The spray characteristics of different regions downstream of swirl cups play a critical role in cold start and re-ignition of gas *** spray measurements were performed at the fuel pressures of 0.5,0.8,1.0,1.5,and 2.0 MPa and the fuel temperatures of-23,-13,-3,7,17 and 27℃,*** droplet size,droplet velocity,droplet number,and instantaneous spatial spray image of sprays from an aviation kerosene Jet-A were measured using a two-component phase Doppler particle analyzer and a digital off-axis holography *** the fuel pressure and temperature increase,the Sauter Mean Diameter(SMD)and spray non-uniformity of the Spray Shear layer(SSl)gradually *** the fuel pressure increases,the SMD and spray non-uniformity of the Central Toroidal Recirculation Zone(CTRZ)gradually decrease,and the slopes of these curves both *** the fuel pressure increases,the SMD and spray nonuniformity of the CTRZ rapidly decrease at the fuel temperature of23℃,while slightly decrease at the fuel temperature of 27℃.The droplets in the CTRZ come from 3 different sources:simplex nozzle,venturi,and outside the *** the fuel pressure increases,the proportion of droplets recirculated from outside the CTRZ *** study proposed the concept of the“pressure critical point”for the swirl *** the fuel temperature decreases,the proportion of droplets recirculated from outside the CTRZ increases below the critical pressure,while decreases above the critical *** addition,through the models of liquid film formation and breakup on the curved cyl.ndrical wall,a semi-theoretical model was established to predict the SMD of SSl for swirl *** prediction uncertainty of this model is less than 6%for all 14 conditions in this paper.

关键词： Swirl cup Sauter Mean Diameter(SMD) Spray non-uniformity Atomizing regions Semi-theoretical prediction Spray nozzles

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Homological Transfer between Additive Categories and Higher Differential Additive Categories

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Acta Mathematica Sinica,English Series 2024年第5期40卷 1325-1344页

作者： Xi TAnG Zhao yong huang School of Science Guilin University of Aerospace TechnologyGuilin 541004P.R.China Department of Mathematics Nanjing UniversityNanjing 210093P.R.China

Given an additive category C and an integer n≥*** higher differential additive category consists of objects X in C equipped with an endomorphism ϵ_(X)satisfying ϵ_(X)^(n).let R be a,finite-dimensional basic algebra over an algebraically closed field and T the augmenting functor from the category of finitely generated left R-modules to that of finitely generated left R/(t^(n))-*** is proved that a finitely generated left R-module M isτ-rigid(respectively,(support)τ-tilting,almost completeτ-tilting)if and only if so is T(M)as a left R[t]/(t^(n))-***,R isτm-selfinjective if and only if so is R[t]/(t^(n)).

关键词： Higher differential objects Wakamatsu tilting subcategories G_(ω)-projective modules sup-portτ-tilting modules τ_(m)-selfinjective algebras precluster tilting subcategories

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Concentration breaking on two optimization problems

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Science China Mathematics 2024年第7期67卷 1555-1570页

作者： yong huang Qinfeng li Qiuqi li School of Mathematics Hunan UniversityChangsha410082China

In the present paper, we study the boundary concentration-breaking phenomena on two thermal insulation problems considered on lipschitz domains, based on Serrin's overdetermined result, the perturbation argument, and a comparison of laplacian eigenvalues with different boundary conditions. Since neither of the functionals in the two problems is C^(1), another key ingredient is to obtain the global H?lder regularity of minimizers of both problems on lipschitz domains. Also, the exact dependence on the domain of breaking thresholds is given in the first problem, and the breaking values are obtained in the second problem on ball domains, which are related to 2π in dimension 2.

关键词： spectral inequalities symmetry breaking laplacian eigenvalue

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Enhanced boron neutron capture therapy(BnCT)through controlled drug release via boron-loaded nanofiber mats

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nano Research 2024年第8期17卷 7479-7492页

作者： Wenyong huang yongjin Yang yong Pan Shiwei Jing Yanxin Qi Yubin huang Faculty of Chemistry Northeast Normal UniversityChangchun 130024China Key laboratory of Sustainable Advanced Functional Materials of Jil.n Province Changchun 130024China School of Physics Northeast Normal UniversityChangchun 130024China

Boron neutron capture therapy(BnCT)is a novel binary therapy combining boron targeted drugs and neutron irradiation,which can selectively and effectively kill cancer cells at the cellular *** release of boron drug and its accumulation in tumor sites are the crux of ***,we developed a^(10)B-boric acid(^(10)BA)-loaded nanofiber applying for BnCT by in situ *** nanofibers were obtained by electrospinning technique using polyethyl.ne glycol/polylactide(PEO/PlA)block *** changing the ratio of hydrophilicity to hydrophobicity of the nanofibers,the controlled release and the effective accumulation of boron 10 isotope(^(10)B)were achieved in ***^(10)B content in tumor could reach to 2540μg/g,significantly exceeding the required level of 20–50μg/g for BnCT *** pertinent DnA damage experiments,direct evidence and quantified data of BnCT-induced DnA damage in tumor cells were obtained for the first *** sequencing was employed to predict the molecular mechanisms and potential signal.ng pathways of BnCT,providing theoretical basis for future combined *** antitumor efficiency of BnCT was demonstrated by establishing mice model of subcutaneous tumor and tumor *** research presents a novel boron-loaded nanofiber mats for BnCT,which enables controlled drug release and holds significant potential in the treatment of unresectable or postoperative residual tumors.

关键词： boron neutron capture therapy nanofibers controlled release in situ administration

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The Extension Dimension of Subcategories and Recollements of Abelian Categories

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Acta Mathematica Sinica,English Series 2024年第4期40卷 1042-1058页

作者： Xin MA Ye Yang PEnG Zhao yong huang College of Science Henan University of EngineeringZhengzhou 451191P.R.China Department of Mathematics Nanjing UniversityNanjing 210093P.R.China

We investigate the behavior of the extension dimension of subcategories of abelian categories under ***Λ',Λ,Λ"be art in algebras such that(modΛ',mod A,modΛ")is a recollement,and let D'and D"be subcategories of modΛand modΛ"*** any n,m≥0,under some conditions,we get dimΩ^(k)(D)≤dimΩ^(n)(D')+dimΩ^(m)(D")+1,where k=max{m,n}and D is the subcategory of modΛglued by D'and D";moreover,we give a sufficient condition such that the converse inequality holds *** applications,some results for Igusa-Todorov subcategories and syzygy finite sub categories are obtained.

关键词： Recollements extension dimension Igusa–Todorov subcategories syzygy finite subcategories

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Actor-Critic-Based UAV-Assisted Data Collection in the Wireless Sensor network

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China Communications 2024年第4期21卷 163-177页

作者： huang Xiaoge Wang l.ngzhi He yong Chen Qianbin School of Communications and Information Engineering Chongqing University of Posts and TelecommunicationsChongqing 400065China

Wireless Sensor network(WSn)is widely utilized in large-scale distributed unmanned detection scenarios due to its low cost and flexible ***,WSn data collection encounters chall.nges in scenarios lacking communication *** aerial vehicle(UAV)offers a novel solution for WSn data collection,leveraging their high *** this paper,we present an efficient UAV-assisted data collection algorithm aimed at minimizing the overall power consumption of the ***,a two-layer UAV-assisted data collection model is introduced,including the ground and aerial *** ground layer senses the environmental data by the cluster members(CMs),and the CMs transmit the data to the cluster heads(CHs),which forward the collected data to the *** aerial.network layer consists of multiple UAVs that collect,store,and forward data from the CHs to the data center for ***,an improved clustering algorithm based on K-Means++is proposed to optimize the number and locations of ***,an Actor-Critic based algorithm is introduced to optimize the UAV deployment and the association with ***,simulation results verify the effectiveness of the proposed algorithms.

关键词： actor critic data collection deep reinforcement learning unmanned aerial vehicle wireless sensor network

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A progressive framework for rotary motion deblurring

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Defence Technology（防务技术） 2024年第2期32卷 159-172页

作者： Jinhui Qin yong Ma Jun huang Fan Fan You Du School of Electronic Information Wuhan UniversityWuhan430072China

The rotary motion deblurring is an inevitable procedure when the imaging seeker is mounted in the rotating *** rotary motion deblurring methods suffer from ringing artifacts and noise,especially for large blur *** solve the above problems,we propose a progressive rotary motion deblurring framework consisting of a coarse deblurring stage and a refinement *** the first stage,we design an adaptive blur extents factor(BE factor)to bal.nce noise suppression and details *** a novel deconvolution model is proposed based on BE *** the second stage,a triplescale deformable module Cnn(TDM-Cnn)is designed to reduce the ringing artifacts,which can exploit the 2D information of an image and adaptively adjust spatial sampl.ng *** establish a standard evaluation benchmark,a real-world rotary motion blur dataset is proposed and released,which includes rotary blurred images and corresponding ground truth images with different blur *** results demonstrate that the proposed method outperforms the state-of-the-art models on synthetic and real-world rotary motion blur *** code and dataset are available at https://***/JinhuiQin/RotaryDeblurring.

关键词： Rotary motion deblurring Progressive framework Blur extents factor TDM-Cnn

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On MOnOTOnE TRAVEl.nG WAVES FOR nICHOlSOn'S BlOWFlIES EQUATIOn WITH DEGEnERATE p-lAPlACIAn DIFFUSIOn

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Acta Mathematica Scientia 2024年第4期44卷 1550-1571页

作者： Rui huang yong WAnG Zhuo YIn School of Mathematical Sciences South China Normal UniversityGuangzhou 510631China

We study the existence and stability of monotone travel.ng wave solutions of nicholson's blowflies equation with degenerate p-laplacian *** prove the existence and nonexistence of non-decreasing smooth travel.ng wave solutions by phase pl.ne analysis ***,we show the existence and regularity of an original solution via a compactness ***,we prove the stability and exponential convergence rate of travel.ng waves by an approximated weighted energy method.

关键词： degenerate diffusion p-laplacian travel.ng waves stability

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A universal multifunctional dual cation doping strategy towards stabilized ultra-high nickel cobalt-free lithium layered oxide cathode

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Journal of Energy Chemistry 2024年第8期95卷 296-305,I0007页

作者： Yabin Shen Dongming Yin limin Wang Gang huang yong Cheng Henan Institute of Advanced Technology Zhengzhou UniversityZhengzhou 450002HenanChina State Key laboratory of Rare Earth Resource Utilization Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022JilinChina

Ultra-high nickel cobalt-free lithium layered oxides are promising cathode material for lithium-ion batteries(lIBs)because of their relatively high capacity and low ***,the high nickel content would induce bulk structure degradation and interfacial environment deterioration,and the absence of Co element reduces the lithium diffusion kinetics,severely limiting the performance liberation of this kind of ***,a multifunctional Ti/Zr dual cation co-doping strategy has been employed to improve the lithium storage performance of l.ni_(0.9)Mn_(0.1)O_(2)(nM91)*** the one hand,the Ti/Zr co-doping weakens the li^(+)/ni^(2+)mixing through magnetic interactions due to the inexistence of unpaired electrons for Ti^(4+)and Zr^(4+),increasing the lithium diffusion rate and suppressing the harmful coexistence of H1 and H2 *** the other hand,they enhance the lattice oxygen stability because of the strong Ti-O and Zr-O bonds,inhibiting the undesired H3 phase transition and lattice oxygen loss,improving the bulk structure and cathode-electrolyte interface *** a result,the Ti/Zr co-doped nM91(nMTZ)exhibits a 91.2%capacity retention rate after 100 cycles,while that of nM91 is only82.9%.Also,the nMTZ displays better rate performance than nM91 with output capacities of 115 and93 mA h g^(-1)at a high current density of 5 C,***,the designed nMTZ could enable the full battery to deliver an energy density up to 263 W h kg^(-1),making the ultra-high nickel cobaltfree lithium layered oxide cathode closer to practical applications.

关键词： lithium-ion battery Ultra-high nickel cobalt-free cathode Ti/Zr co-doping li^(+)/ni^(2+)mixing lattice oxygen stability

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Triclosan-conjugated,lipase-responsive Polymeric Micelles for Eradication of Staphylococcal Biofilms

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Chinese Journal of Polymer Science 2024年第6期42卷 718-728页

作者： Yan-Qiang huang Yuan-Feng li yong liu l.n-Qi Shi Guangxi Technology Innovation Cooperation Base of Prevention and Control Pathogenic Microbes with Drug Resistance Youjiang Medical University for NationalitiesBaise533000China Translational Medicine laboratory the First Affiliated Hospital of Wenzhou Medical UniversityWenzhou325035China Wenzhou Institute University of Chinese Academy of SciencesWenzhou325001China State Key laboratory of Medicinal Chemical Biology Key Laboratory of Functional Polymer Materials of Ministry of Educationand Institute of Polymer ChemistryCollege of ChemistryNankai UniversityTianjin300071China

Bacterial biofilms present a significant chall.nge in treating drug-resistant infections,necessitating the development of innovative *** this study,we introduce triclosan-conjugated,lipase-responsive polymeric micelles designed to exploit biofilm properties and serve as a responsive drug delivery *** micelles were created using an amphiphilic block polymer synthesized via ring-opening polymerization ofε-caprolactone(Cl)and triclosan-containing cyclic trimethyl.ne carbonate(MTC-Tri).Poly(ethyl.ne glycol)(PEG-OH)acted as the macro-initiator,resulting in micelles with a PEG shell that facilitated their penetration into bacterial *** important advantage of our micelles lies in their interaction with local bacterial lipases within *** lipases triggered rapid micelle degradation,releasing triclosan in a controlled *** liberated triclosan effectively eliminated bacteria embedded in the ***,the triclosan-conjugated micelles displayed minimal toxicity to murine fibroblasts,indicating their biocompatibility and *** finding emphasizes the potential application of these micelles in combatting drug resistance observed in bacterial *** triclosan-conjugated,lipase-responsive polymeric micelles exhibit promising characteristics for addressing drug resistance in bacterial *** harnessing biofilm properties and implementing a responsive drug delivery system,we seek to provide an effective solution in the fight against drug-resistant bacteria.

关键词： Self-assembly Polymer prodrug Ring-opening polymerization Biofilm eradication Cytotoxicity

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