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A new horizon for neuroscience:terahertz biotechnology in brain research

Neural Regeneration Research 2025年第2期20卷 309-325页

作者： Zhengping Pu yu wu Zhongjie Zhu Hongwei Zhao Donghong Cui Shanghai Key Laboratory of Psychotic Disorders Shanghai Mental Health CenterShanghai Jiao Tong University School of MedicineShanghaiChina Department of Psychiatry Kangci Hospital of JiaxingTongxiangZhejiang ProvinceChina Shanghai Synchrotron Radiation Facility Shanghai Advanced Research InstituteChinese Academy of SciencesShanghaiChina Key Laboratory of Interfacial Physics and Technology Shanghai Institute of Applied PhysicsChinese Academy of ScienceShanghaiChina National Facility for Protein Science in Shanghai Shanghai Advanced Research InstituteChinese Academy of SciencesShanghaiChina

Terahertz biotechnology has been increasingly applied in various biomedical fields and has especially shown great potential for application in brain *** this article,we review the development of terahertz biotechnology and its applications in the field of *** evidence indicates promising prospects for the use of terahertz spectroscopy and terahertz imaging techniques in the diagnosis of amyloid disease,cerebrovascular disease,glioma,psychiatric disease,traumatic brain injury,and myelin *** vitro and animal experiments have also demonstrated the potential therapeutic value of terahertz technology in some neuropsychiatric *** the precise underlying mechanism of the interactions between terahertz electromagnetic waves and the biosystem is not yet fully understood,the research progress in this field shows great potential for biomedical noninvasive diagnostic and therapeutic ***,the biosafety of terahertz radiation requires further exploration regarding its two-sided efficacy in practical *** review demonstrates that terahertz biotechnology has the potential to be a promising method in the field of neuropsychiatry based on its unique advantages.

关键词： biological effect brain neuron neuropsychiatry neuroscience non-thermal effect terahertz imaging terahertz radiation terahertz spectroscopy terahertz technology

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Recent progress on photoactive nonprecious transition-metal complexes

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Science China Chemistry 2025年第1期68卷 46-95页

作者： Zhong-Liang Gong Hong-Jie Zhang Yan Cheng Jianxun Liu yuhan Ai Yaqin Li Zhihui Feng Qiong Zhang Shaolong Gong Yong Chen Chang-Jiang Yao yuan-yuan Zhu Liang-Jin Xu yu-wu Zhong CAS Key Laboratory of Photochemistry Institute of Chemistry Chinese Academy of Sciences State Key Laboratory of Structural Cemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences School of Chemistry and Chemical Engineering Anhui Key Laboratory of Advanced Catalytic Materials and Reaction EngineeringHefei University of Technology State Key Laboratory of Explosion Science and Safety Protection School of Mechatronical Engineering Beijing Institute of Technology College of Chemistry and Molecular Sciences Hubei Key Lab on Organic and Polymeric Optoelectronic Materials Wuhan University School of Chemistry and Chemical Engineering Anhui University Key Laboratory of Photochemical Conversion and Optoelectronic Materials & CAS-HKU Joint Laboratory on New Materials Technical Institute of Physics and Chemistry Chinese Academy of Sciences

Photoactive complexes of nonprecious transition metals, mainly including those in the first-row and partially the second-row of the Periodic table of elements, have received increasing attention in view of their low cost and long-term sustainability. They are recognized as promising alternatives to noble transition metal complex congeners that have been extensively studied in optoelectronic devices, artificial photosynthesis, photocatalysis, biodiagnostics, and therapeutics, etc. This review is devoted to a comprehensive summary on the classical and recent advances on photoactive nonprecious transition metal complexes, including photoactive Zr, V, Cr, Mo, and W complexes, Mn complexes and hybrids, Fe, Co, Ni, and Cu complexes, and Zn and Cd complexes and hybrids. A particular focus is given on the molecular design, modulation of photophysical and photochemical properties, and applications of the representative and lately-developed nonprecious metal complexes. In addition, a perspective on the future development in this field is provided at the end of this review.

关键词： photoactive metal complexes earth-abundant metals nonprecious metal complexes luminescence photochemistry

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均质黏土中桩靴基础贯入阻力系数Nc的解析解

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工程力学 2025年第1期42卷 233-240页

作者：李大勇王召龙吴宇旗中国石油大学(华东)储运与建筑工程学院山东青岛266580

自升式平台的桩靴基础需逐级预压入海床一定深度，使其承载力满足承受上部平台自重荷载及所受到的海洋环境荷载的要求。随着压入深度的增加，土体将绕过桩靴基础侧面逐渐回流至基础顶部。桩靴基础在不同压入深度处，土体的回流模式不同... 详细信息

自升式平台的桩靴基础需逐级预压入海床一定深度，使其承载力满足承受上部平台自重荷载及所受到的海洋环境荷载的要求。随着压入深度的增加，土体将绕过桩靴基础侧面逐渐回流至基础顶部。桩靴基础在不同压入深度处，土体的回流模式不同，导致基础的贯入阻力发生变化。考虑完全回流和不回流两种极端情况下的土体破坏模式，利用特征线法推导了桩靴基础贯入阻力系数Nc，采用有限元极限分析法验证了计算模型的合理性。与已发表的文献中的离心机试验数据和数值模拟结果进行对比研究，验证了所提的理论方法的准确性。研究表明：光滑基底底部形成两个左右对称的弹性楔体，随着桩靴基础基底剪应力的增加，弹性楔体体积逐渐减小，当基底剪应力达到土体抗剪强度时，弹性楔体消失。贯入阻力系数Nc随着桩靴基础基底剪应力的增加呈线性增加，土体不回流情况下的贯入阻力系数比完全回流情况下的贯入阻力系数低约20%。

关键词：桩靴基础贯入阻力系数解析解均质黏土破坏模式

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DEM simulations of die filling during pharmaceutical tabletting

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Particuology 2008年第6期6卷 412-418页

作者： Chuan-yu wu School of Chemical Engineering University of Birmingham Edgbaston Birmingham B15 2TT UK

The flow behaviour of powders from a stationary shoe into a moving die, which mimics the die filling process in a rotary tablet press, was analysed using a discrete element method （DEM）, in which 2D irregular shaped particles were considered. The influence of the particle shape, size and size distribution, the number of particles used in the simulation, the initial height of powder bed in the shoe, and the filling speed on the average mass flow rate and the critical filling speed （the highest speed at which the die can be completely filled） were explored. It has been found that a maximum flow rate is obtained at the critical filling speed for all systems investigated and poly-disperse systems have higher mass flow rates and higher critical filling speeds than mono-disperse systems. In addition, the powder with particles which can tessellate generally has a lower filling rate and a lower critical titling speed.

关键词： DEM Die filling Tabletting Powder compaction Mass flow rate Critical filling speed

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Bifurcation in most probable phase portraits for a bistable kinetic model with coupling Gaussian and non-Gaussian noises

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Applied Mathematics and Mechanics(English Edition) 2021年第12期42卷 1759-1770页

作者： Mengjiao HUA yu wu Department of Engineering Mechanics Zhejiang UniversityHangzhou 310027China Key Laboratory of Soft Machines and Smart Devices of Zhejiang Province Zhejiang UniversityHangzhou 310027China Soft Matter Research Center Zhejiang UniversityHangzhou 310027China State Key Laboratory of Fluid Power and Mechatronic Systems Zhejiang UniversityHangzhou 310027China

The phenomenon of stochastic bifurcation driven by the correlated non-Gaussian colored noise and the Gaussian white noise is investigated by the qualitative changes of steady states with the most probable phase *** arrive at the Markovian approximation of the original non-Markovian stochastic process and derive the general approximate Fokker-Planck equation(FPE),we deal with the non-Gaussian colored noise and then adopt the unified colored noise approximation(UCNA).Subsequently,the theoretical equation concerning the most probable steady states is obtained by the maximum of the stationary probability density function(SPDF).The parameter of the uncorrelated additive noise intensity does enter the governing equation as a non-Markovian effect,which is in contrast to that of the uncorrelated Gaussian white noise case,where the parameter is absent from the governing equation,i.e.,the most probable steady states are mainly controlled by the uncorrelated multiplicative ***,in comparison with the deterministic counterpart,some peculiar bifurcation behaviors with regard to the most probable steady states induced by the correlation time of non-Gaussian colored noise,the noise intensity,and the non-Gaussian noise deviation parameter are ***,the symmetry of the stochastic bifurcation diagrams is destroyed when the correlation between noises is ***,the feasibility and accuracy of the analytical predictions are verified compared with those of the Monte Carlo(MC)simulations of the original system.

关键词： stochastic bifurcation non-Gaussian colored noise most probable steady state Fokker-Planck equation(FPE) Monte Carlo(MC)simulation

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Nonlinear Discrete Inequalities of Bihari-type and Applications

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Acta Mathematicae Applicatae Sinica 2013年第3期29卷 603-614页

作者： yu wu College of Mathematics Yibin University

Discrete Bihari-type inequalities with n nonlinear terms are discussed, which generalize some known results and may be used in the analysis of certain problems in the theory of difference equations. Examples to illust... 详细信息

关键词： discrete inequality Bihari’s type nonlinear monotonicity

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Photofunction-Directed Coordination Molecular Engineering

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Chinese Journal of Chemistry 2021年第3期39卷 543-549页

作者： yu-wu Zhong Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of PhotochemistryCAS Research/Education Center for Excellence in Molecular SciencesInstitute of ChemistryChinese Academy of SciencesBeijing 100190China School of Chemical Sciences University of Chinese Academy of SciencesBejjing 100049China

Molecular engineering has emerged as a highly interdisciplinary field of study on function-directed molecular design,material synthesis,and property optimization,accompanied by a deep understanding of the structure-property *** this review,our recent progress on the design and preparations of photofunctional metal complexes and related materials is summarized from the perspective of coordination molecular *** particular,a series of cyclometalated diruthenium complexes with near-infrared(NIR)electrochromic property have been synthesized by engineering the bridging ligand structures.A group of ruthenium-amine conjugated complexes with multistage NIR electrochromism are obtained on the basis of a multicenter *** engineering the ligand structures,a series of new ruthenium and platinum complexes are synthesized to show switchable luminescence in response to various *** addition,photoluminescent ruthenium,iridium,and platinum complexes are assembled to afford micro/nanocrystals with well-defined morphology and luminescent properties.

关键词： Photochemistry Photophysics Transitional metals Metal-metal interactions Conjugation Luminescence

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Obstacle avoidance and path planning for carrier aircraft launching

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Chinese Journal of Aeronautics 2015年第3期28卷 695-703页

作者： wu yu Qu Xiangju School of Aeronautic Science and Engineering Beihang University

Abstract Launching safety and efficiency are important indexes to measure the fighting capacity of carrier. The study on path planning for taxi of carrier aircraft launching under actual deck environ ment is of great significance. In actual deck scheduling, manual command is applied to taxi of carrier aircraft, which has negative effects on the safety of staff and carrier aircraft launching. In consideration of both the safety and efficiency of carrier aircraft launching, the key elements of the problem are abstracted based on the analysis of deck environment, carrier aircraft maneuver performance and task requirements. According to the problem description, the mathematical model is established including various constraints. The carrier aircraft and the obstacles are reasonably simplified as circle and polygons respectively. What＇s more, the proposed collision detection model reduces the calculations. Aimed at the features of model, the theory of model predictive control （MPC） is applied to the path search. Then a dynamic weight heuristic function is designed and a dynamic multistep optimization algorithm is proposed. Taking the Nimitz-class aircraft carrier as an example, the paths from parking place to catapult are planned, which indicate the rationality of the model and the effectiveness of the algorithm by comparing the planning results under different simulation environments. The main contribution of research is the establishment of obstacle avoidance and path planning model. In addition, it provides the solution of model and technological foundations for comprehensive command and real-time decision-making of the carrier aircraft.

关键词： Carrier aircraft Collision detection Multistep optimizationObstacle avoidance Path planning

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A Note on the Generalized Marcinkiewicz Integral Operators with Rough Kernels

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Acta Mathematica Sinica,English Series 2012年第12期28卷 2395-2406页

作者： yu Rong wu Huo Xiong wu School of Mathematical Sciences Xiamen University School of Mathematical Sciences Fudan University

In this paper, we study the generalized Marcinkiewicz integral operators MΩ,r on the product space Rn ×Rm. Under the condition that Ω is a function in certain block spaces, which is optimal in some senses, the boun... 详细信息

关键词： Marcinkiewicz integral Triebel-Lizorkin space vector-valued multiplier theorem rough kernel product space

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Handedness-inverted polymorphic helical assembly and circularly polarized luminescence of chiral platinum complexes

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Science China Chemistry 2021年第5期64卷 788-799页

作者： Zhong-Liang Gong yu-wu Zhong Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of PhotochemistryCAS Research/Education Center for Excellence in Molecular SciencesInstitute of ChemistryChinese Academy of SciencesBeijing 100190China School of Chemical Sciences University of Chinese Academy of SciencesBeijing 100049China

Circularly polarized luminescence(CPL)materials have potential applications in three-dimensional(3D)displays,quantum encryption,and optical *** development of single-component CPL materials with polymorphic assembly and handedness inversion remains a significant ***,we present the access of such materials by controlling the underlying assembly pathway of well-designed chiral emitters.A pair of enantiomeric platinum complexes(R)-1 and(S)-1 decorated with a chiralα-methylbenzyl isocyanide ligand were *** using the mixed-solvent(THF/n-hexane,THF=tetrahydrofuran)or high-concentration condition,these complexes were found to assemble via a cooperative or isodesmic pathway with significantly enhanced yellow or red emission,*** aggregate samples obtained via these conditions show efficient CPL(dissymmery factor|glum|>0.02,emission quantum yieldΦ>20%).Interestingly,different assembly pathway leads to helical nanoribbons or nanofibers with opposite handedness from the complex with the same molecular *** has been unambiguously and consistently manifested by circular dichroism and CPL spectral analysis and transmission electron,scanning electron,and atomic force microscope *** work demonstrates an appealing example of constructing polymorphic helical architectures with highly efficient CPL and inverted handedness thanks to the excellent assembly and emission of platinum complexes.

关键词： self-assembly nanostructures circularly polarized luminescence chiral materials platinum complexes

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