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pH Induced Self-assembly of AIE Fluorescent Probe for Tumor Imaging

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Chinese Journal of Polymer Science 2024年第1期42卷 7-13,I0005页

作者： Jing-Yuan Xiang Wen-Long Zhang he-Ting Li Ya-Ning he Department of Chemical Engineering Key Laboratory of Advanced Materials(MOE)Tsinghua UniversityBejing 100084China

This work reported an AIE fluorescent probe for tumor imaging based on the p H induced self-assembly strategy. The fluorescent probe was composed of an acid-responsive soluble copolymer PEG-b-PAMA-DMMA with a maleic acid amide group and an anionic soluble aggregation-induced emission fluorogen(AIEgen) TPE-2SO_(3)^(-). The polymer could be transformed into a protonated amine-containing polymer after the hydrolysis of maleic acid amide in acidic tumor microenvironment, which would be further self-assembled with TPE-2SO_(3)^(-)to form aggregated nanoparticles. The transition of TPE-2SO_(3)^(-)from dispersed state to aggregated state led to an obvious increase in fluorescence intensity due to its AIE characteristics.

关键词： p H-responsive Self-assembly Fluorescent probe AIE Tumor imaging

Fully Nonlinear Equations of Krylov Type on Riemannian Manifolds with Totally Geodesic Boundary

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Acta Mathematica Sinica,English Series 2024年第5期40卷 1293-1307页

作者： Li CheN Yan he Faculty of Mathematics and Statistics Hubei Key Laboratory of Applied MathematicsHubei UniversityWuhan 430000P.R.China

In this paper,we study fully nonlinear equations of Krylov type in conformal geometry on compact smooth Riemannian manifolds with totally geodesic *** prove the a priori estimates for solutions to these equations and ... 详细信息

关键词： The modified Schouten tensor k-convex hessian type equation

Regulation of insect behavior by non-coding RNAs

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Science China(Life Sciences) 2024年第6期67卷 1106-1118页

作者： Jing he Le Kang State Key Laboratory of Integrated Management of Pest Insects and Rodents Institute of ZoologyChinese Academy of SciencesBeijing 100101China Beijing Institutes of Life Sciences Chinese Academy of SciencesBeijing 100101China College of Life Science Hebei UniversityBaoding 071002China

The adaptation of insects to environments relies on a sophisticated set of behaviors controlled by molecular and physiological *** the past several decades,accumulating studies have unveiled the roles of non-coding RNAs(nc RNAs)in regulating insect *** RNAs assume particularly pivotal roles in the behavioral plasticity of insects by rapidly responding to environmental *** RNAs also contribute to the maintenance of homeostasis of insects by fine-tuning the expression of target ***,a comprehensive review of nc RNAs'roles in regulating insect behaviors has yet to be ***,we present the recent progress in our understanding of how nc RNAs regulate various insect behaviors,including flight and movement,social behavior,reproduction,learning and memory,and *** refine the intricate mechanisms by which nc RNAs modulate the function of neural,motor,reproductive,and other physiological systems,as well as gene expression in insects like fruit flies,social insects,locusts,and ***,we discuss potential avenues for future studies in nc RNA-mediated insect behaviors.

关键词： ncRNAs insect behavior plasticity fine-tuning environmental adaptation

Vibration of black phosphorus nanotubes via orthotropic cylindrical shell model

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Theoretical & Applied Mechanics Letters 2024年第3期14卷 166-173页

作者： Minglei he Lifeng Wang State Key Laboratory of Mechanics and Control for Aerospace Structures Nanjing University of Aeronautics and AstronauticsNanjing 210016China

Black phosphorus nanotubes(BPNTs)may have good properties and potential *** thevibration property of BPNTs is essential for gaining insight into the mechanical behaviour of BPNTs and designingoptimized *** this paper,the mechanical behaviour and vibration property of BPNTs are studied viaorthotropic cylindrical shell model and molecular dynamics(MD)*** vibration frequencies of twochiral BPNTs are analysed *** to the results of MD calculations,it is revealed that thenatural frequencies of two BPNTs with approximately equal sizes are unequal at each order,and that the naturalfrequencies of armchair BPNTs are higher than those of zigzag *** addition,an armchair BPNTs witha stable structure is considered as the object of research,and the vibration frequencies of BPNTs of differentsizes are *** comparing the MD results,it is found that both the isotropic cylindrical shell modeland orthotropic cylindrical shell model can better predict the thermal vibration of the lower order modes of thelonger BPNTs ***,for the vibration of shorter and thinner BPNTs,the prediction of the orthotropiccylindrical shell model is obviously superior to the isotropic shell model,thereby further proving the validity ofthe shell model that considers orthotropic for BPNTs.

关键词： Orthotropic cylindrical shell Molecular dynamics simulation Black phosphorus nanotube Vibration

Droplet collision of hypergolic propellants

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Droplet 2024年第2期3卷 58-72页

作者： Chengming he ZhiXia he Peng Zhang Institute for Energy Research Jiangsu UniversityZhenjiangChina Department of Mechanical Engineering City University of Hong KongHong KongChina

In the present mini-review,droplet impacting on a liquid pool,jet impingement,and binary droplet collision of nonreacting liquids are first summarized in terms of basic phenomena and the corresponding nondimensional ***,two representative hypergolic bipropellant systems,a hypergolic fuel of N,N,N′,N′-tetramethylethylenediamine(TMEDA)and an oxidizer of white fuming nitric acid(WFNA)and a monoethanolamine-based fuel(MEA-NaBH4)and a high-density hydrogen peroxide(H2O2),are discussed in detail to unveil the rich underlying physics such as liquid-phase reaction,heat transfer,phase change,and gas-phase *** review focuses on quantifying and interpreting the parametric dependence of the gas-phase ignition induced by droplet collision of liquid hypergolic *** advances in droplet collision of hypergolic propellants are important for modeling the real hypergolic impinging-jet(spray)combustion and for the design optimization of orbit-maneuver rocket engines.

关键词： reaction. collision summarized

Global warming strengthens the association between ENSO and the Asian-Australian summer monsoon

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Science China Earth Sciences 2024年第1期67卷 309-312页

作者： Bao YANG Minhui he School of Geography and Ocean Science Nanjing UniversityNanjing 210093China Key Laboratory of Desert and Desertification Northwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesLanzhou 730000China

Previous studies have widely reported the linkages between Asian-Australian monsoon and the ENSO(Wu,2008;Azad and Rajeevan,2016;Chen et al.,2020;Shekhar et al.,2022;Zhang J et al.,2022;Chen et al.,2023;Hau et al.,2023;heidemann et al.,2023).It is well accepted that the monsoon is weaker during the El Niño phase and stronger during the La Niña *** example,an anomalously strong western Pacific subtropical high in 2020,related to the La Niña event.

关键词： event monsoon Asian

低频超声对万古霉素骨水泥-假体柄界面剪切应力的影响

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中华医学杂志 2017年第7期97卷 545-550页

作者：赵琦辉朱芳兵蔡迅梓严世贵何荣新杭州市第三人民医院骨科浙江310009 浙江大学医学院附属第二医院骨科

目的探讨低频脉冲超声对载荷万古霉素丙烯酸骨水泥-假体柄界面剪切应力的影响。方法制备1%万古霉素骨水泥-假体柄界面模型，数字表法随机分为对照组、450 mW/cm^2超声组和1 200 mW/cm^2超声组，每组8个样本。对照组37 ℃磷酸盐缓冲液（... 详细信息

目的探讨低频脉冲超声对载荷万古霉素丙烯酸骨水泥-假体柄界面剪切应力的影响。方法制备1%万古霉素骨水泥-假体柄界面模型，数字表法随机分为对照组、450 mW/cm^2超声组和1 200 mW/cm^2超声组，每组8个样本。对照组37 ℃磷酸盐缓冲液（PBS）中浸泡30 d，超声组37 ℃PBS中超声处理7 d后再浸泡23 d，试件空气中风干24 h后万能力学试验机检测界面剪切应力，场发射扫描电子显微镜和Image-Pro Plus 6.0图像处理软件分析界面孔隙率。结果超声干预1周后，450 mW/cm^2组和1 200 mW/cm^2组界面剪切应力分别较对照组下降9%（P〉0.05）和17%（P〈0.05），两超声组之间无明显差异；450 mW/cm^2和1 200 mW/cm^2超声组界面孔隙率较对照组分别增加44%（P〉0.05）和110%（P〈0.05），1 200 mW/cm^2超声组界面孔隙率较450 mW/cm^2组增加46%（P〈0.05）。超声组界面体液渗透明显增加。结论低频脉冲超声干预1周可显著增加界面孔隙率，提高体液渗透界面，降低界面剪切应力，降低丙烯酸骨水泥-不锈钢假体柄界面初始稳定性。

关键词：假体和植入物万古霉素应力,物理超声疗法

CONVERGENCE ANALYSIS OF SOME FINITE ELEMENT PARALLEL ALGORITHMS FOR The STATIONARY INCOMPRESSIBLE MHD EQUATIONS

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Journal of Computational Mathematics 2024年第1期42卷 49-70页

作者： Xiaojing Dong Yinnian he Hunan Key Laboratory for Computation and Simulation in Science and Engineering Key Laboratory of Intelligent Computing&Information Processing of Ministry of EducationSchool of Mathematics and Computational ScienceXiangtan UniversityXiangtan 411105China Institute of Applied Physics and Computational Mathematics Beijing 100088China School of Mathematics and Statistics Xi'an Jiaotong UniversityXi'an 710049China

By combination of iteration methods with the partition of unity method(PUM),some finite element parallel algorithms for the stationary incompressible magnetohydrodynamics(MHD)with different physical parameters are presented and *** algorithms are highly *** first,a global solution is obtained on a coarse grid for all approaches by one of the iteration *** parallelized residual schemes,local corrected solutions are calculated on finer meshes with overlapping *** subdomains can be achieved flexibly by a class of *** proposed algorithm is proved to be uniformly stable and ***,one numerical example is presented to confirm the theoretical findings.

关键词： Partition of unity method Local and parallel algorithm Finite element method Iteration methods Magnetohydrodynamics

P2P Energy Trading Considering Prosumer Preference and System Risk

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CSEE Journal of Power and Energy Systems 2024年第3期10卷 1179-1194页

作者： Xinyu he Ping Dong Mingbo Liu Xuewei Huang Wenli Deng Ruijin he School of Electric Power Engineering South China University of TechnologyGuangzhou 510640China IEEE

As an important means of mobilizing demand-side resources,peer-to-peer(P2P)energy trading has drawn more and more attention from *** paper constructs a P2P energy trading framework considering prosumers’trading partner preferences(TPPs)and system *** first,we build the P2P trading models of prosumers equipped with different distributed energy resources(DERs),and TPP ***,to solve the established energy trading problem,a fully distributed double-consensus alternating direction method of multipliers(DC-ADMM)is proposed,which can achieve transaction consensus when considering market players’***,a risk-based security constrained economic dispatch(RBSCED)model based on AC power flow is established for the first time,by which a distribution system operator(DSO)checks system security and obtains risk-based locational marginal prices(RLMPs).Moreover,double-regulated price signals related to RLMPs which contain grid utilization prices(GUPs)and DSO’s retail prices realize management of players’*** the end,the proposed method is applied to an IEEE33 bus distribution *** show the proposed method effectively reduces system risk and ensures secure operation of system without direct management.

关键词： Double-consensus ADMM grid utilization price price signal risk-based locational marginal price trading partner preference