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Cortico-striatal gamma oscillations are modulated by dopamine D3 receptors in dyskinetic rats

Neural Regeneration Research 2025年第4期20卷 1164-1177页

作者： Pengfei Wang Yuewei Bi Min Li Jiazhi Chen Zhuyong Wang Huantao Wen ming zhou Minjie Luo Wangming Zhang Neurosurgery Center Department of Pediatric NeurosurgeryGuangdong Provincial Key Laboratory on Brain Function Repair and RegenerationZhujiang HospitalSouthern Medical UniversityGuangzhouGuangdong ProvinceChina

Long-term levodopa administration can lead to the development of levodopa-induced *** oscillations are a widely recognized hallmark of abnormal neural electrical activity in levodopa-induced ***,studies have reported increased oscillation power in cases of levodopa-induced ***,little is known about how the other electrophysiological parameters of gamma oscillations are altered in levodopa-induced ***,the role of the dopamine D3 receptor,which is implicated in levodopa-induced dyskinesia,in movement disorder-related changes in neural oscillations is *** found that the cortico-striatal functional connectivity of beta oscillations was enhanced in a model of Parkinson’s ***,levodopa application enhanced cortical gamma oscillations in cortico-striatal projections and cortical gamma aperiodic components,as well as bidirectional primary motor cortex(M1)↔dorsolateral striatum gamma *** of PD128907(a selective dopamine D3 receptor agonist)induced dyskinesia and excessive gamma oscillations with a bidirectional M1↔dorsolateral striatum ***,administration of PG01037(a selective dopamine D3 receptor antagonist)attenuated dyskinesia,suppressed gamma oscillations and cortical gamma aperiodic components,and decreased gamma causality in the M1→dorsolateral striatum *** findings suggest that the dopamine D3 receptor plays a role in dyskinesia-related oscillatory activity,and that it has potential as a therapeutic target for levodopa-induced dyskinesia.

关键词： aperiodic components dopamine D3 receptor dorsolateral striatum functional connectivity gamma oscillations levodopa-induced-dyskinesia local field potentials neuromodulation Parkinson’s disease primary motor cortex

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Influence of stearic acid surface modification on flowability and agglomeration of battery grade Li_(2)CO_(3)powder

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Particuology 2024年第9期92卷 263-277页

作者： ming zhou Lithium Industry Center Zhejiang New Era Zhongneng Technology Co.Ltd.Shaoxing312000China

This work investigates the flow and agglomeration behaviors of battery grade Li_(2)CO_(3)powder and the influence of stearic acid surface *** degree of agglomeration is directly related to the uniformity of Li_(2)CO_(3)and its powder *** to the Chinese National Nonferrous Metal Industry Standard,battery grade Li_(2)CO_(3)powder has D50 equal to 3–8μm which belongs to a micron-sized superfine ***,with the extension of storage time,the serious agglomeration phenomenon occurs due to the large specific surface area and rough and irregular powder *** Hausner ratio(HR)of the unmodified sample increases from 1.14 to 1.41,and the corresponding flowability is classified as good to ***,among samples with doping stearic acid,the optimum amount of it is 0.10 wt%which exhibits an extremely stable HR value from 1.14 to ***,after 156 days,the repose angle(AR)obtained for samples without surface modification and using 0.10 wt%stearic acid are calculated to be 49°and 28°,*** on the values of HR and AR,the flowability of the unmodified sample is poor while the sample modified with 0.10 wt%of stearic acid still maintain excellent powder flow ***,The LiMn_(2)O_(4)cathode material synthesized from modified Li_(2)CO_(3)powder with a stearic acid content of 0.10 wt%exhibits good crystallinity and comparable electrochemical performance to that prepared by commercial Li_(2)CO_(3).These results indicate that stearic acid has the potential to be an ideal modifier for battery grade Li_(2)CO_(3)powder that needs to be kept for a long time.

关键词： Battery grade Li_(2)CO_(3)powder Flowability Surface modification Stearic acid

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Tool Wear and Its Effect on Surface Roughness in Diamond Cutting of Glass Soda-lime

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Chinese Journal of Mechanical Engineering 2012年第6期25卷 1224-1230页

作者： JIA Peng zhou ming Changchun Institute of Optics Fine Mechanics and Physics Chinese Academy of Sciences Changchun 130033 China School of Mechanical and Electrical Engineering Harbin Institute of Technology Harbin 150001 China

For the technology of diamond cutting of optical glass, the high tool wear rate is a main reason for hindering the practical application of this technology. Many researches on diamond tool wear in glass cutting rest on wear phenomenon describing simply without analyzing the genesis of wear phenomenon and interpreting the formation process of tool wear in mechanics. For in depth understanding of the tool wear and its effect on surface roughness in diamond cutting of glass, experiments of diamond turning with cutting distance increasing gradually are carried out on soda-lime glass. The wear morphology of rake face and flank face, the corresponding surface features of workpiece and the surface roughness, and the material compositions of flank wear area are detected. Experimental results indicate that the flank wear is predominant in diamond cutting glass and the flank wear land is characterized by micro-grooves, some smooth crater on the rake face is also seen. The surface roughness begins to increase rapidly, when the cutting mode changes from ductile to brittle for the aggravation of tool wear with the cutting distance over 150 m. The main mechanisms of inducing tool wear in diamond cutting of glass are diffusion, mechanical friction, thermo-chemical action and abrasive wear. The proposed research makes analysis and research from wear mechanism on the tool wear and its effect on surface roughness in diamond cutting of glass, and provides theoretical basis for minimizing the tool wear in diamond cutting brittle materials, such as optical glass.

关键词： diamond cutting tool wear surface roughness soda-lime glass

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The SL(V)-ample Cone of Product of Flag Varieties

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Acta Mathematica Sinica,English Series 2015年第2期31卷 272-280页

作者： ming Shuo zhou School of Science Hangzhou Dianzi University

Let k be an algebraically closed field, and V be a vector space of dimension n over k. For a set w = （ d →（1）,..., d→ （m）） of sequences of positive integers, denote by Lω the ample line bundle corresponding to the polarization on the product X = Пi=1 m Flag（V, →n（i）） of flag varieties of type n→（i） determined by ω. We study the SL（V）-linearization of the diagonal action of SL（V） on X with respect to Lω. We give a sufficient and necessary condition on ω such that X ss（Lω） ≠ 0 （resp., Xs（Lω） ≠ 0）. As a consequence, we characterize the SL（V）-ample cone （for the diagonal action of SL（V） on X）,which turns out to be a polyhedral convex cone.

关键词： Semistable SL(V)-ample cone Schubert cycle

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Experimental Investigation and Numerical Simulation on Interfacial Carbon Diffusion of Diamond Tool and Ferrous Metals

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Journal of Wuhan University of Technology(Materials Science) 2016年第2期31卷 307-314页

作者：邹莱 zhou ming State Key Laboratory of Mechanical Transmission Chongqing University Chongqing 400030 China School of Mechanical and Electrical Engineering Harbin Institute of Technology Harbin 150001 China

We numerically simulated and experimentally studied the interfacialcarbon diffusion between diamond tooland workpiece materials.A diffusion modelwith respect to carbon atoms of diamond toolpenetrating into chips and machined surface was *** numericalsimulation results of the diffusion process revealthat the distribution laws of carbon atoms concentration have a close relationship with the diffusion distance,the diffusion time,and the originalcarbon concentration of the work *** addition,diamond face cutting tests of die steels with different carbon content are conducted at different depth of cuts and feed rates to verify the previous simulation *** micro-morphology of the chips is detected by scanning electron *** dispersive X-ray analysis was proposed to investigate the change in carbon content of the chips *** experimentalresults of this work are of benefit to a better understanding on the diffusion wear mechanism in single crystaldiamond cutting of ferrous ***,the experimentalresults show that the diffusion wear of diamond could be reduced markedly by applying ultrasonic vibration to the cutting toolcompared with conventionalturning.

关键词： diamond tool carbon diffusion numerical simulations ferrous metals ultrasonic vibration assisted cutting

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Optimal Timing of Business Conversion for Solvency Improvement

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Acta Mathematicae Applicatae Sinica 2024年第3期40卷 744-757页

作者： Peng LI ming zhou School of Finance Nanjing University of Finance and EconomicsNanjing 210023China Center for Applied Statistics and School of Statistics Renmin University of ChinaBeijing 100872China

In this paper,we study the optimal timing to convert the risk of business for an insurance company in order to improve its *** cash flow of company evolves according to a jump-diffusion *** conversion option offers the company an opportunity to transfer the jump risk business *** exchange for this option,the company needs to pay both fixed and proportional transaction *** proportional cost can also be seen as the profit loading of the jump risk *** formulated this problem as an optimal stopping *** solving this stopping problem,we find that the optimal timing of business conversion mainly depends on the profit loading of the jump risk business.A larger profit loading would make the conversion option *** fixed cost,however,only delays the optimal timing of business *** the end,numerical results are provided to illustrate the impacts of transaction costs and environmental parameters to the optimal strategies.

关键词： optimal stopping jump-diffusion process conversion option

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Artificial transpiration: an efficient means of waste-water treatment

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National Science Review 2018年第2期5卷 120-121页

作者： ming zhou Zongfu Yu Department of Electrical and Computer Engineering University of Wisconsin—Madison

Efficient solar vapor generation has been attracting a lot of attention for its potential in various applications,such as desalination,sterilization and chemical purification with a minimal carbon *** progress has been achieved with materials designs for photon[1–3]and thermal management[4–6].However,with those improvements,losses re-

关键词： TRANSPIRATION (Physics) WASTEWATER treatment

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Formation and Characterization of ZrO3 and HfO3 Molecules in Solid Argon

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Chinese Journal of Chemical Physics 2009年第2期22卷 113-118页

作者： Yu Gong ming-fei zhou Department of Chemistry Shanghai Key Laboratory of Molecular Catalysts and Innovative Materials Advanced Materials Laboratory Fudan University Shanghai 200433 China

ZrO3 and HfO3 molecules were prepared via reactions of metal monoxides with dioxygen in solid argon and were characterized using matrix isolation infrared absorption spectroscopy as well as theoretical calculations. Unlike the titanium monoxide molecule, which reacted spontaneously with dioxygen to form TiO3, the ZrO and HfO molecules reacted with dioxygen to give the ZrO3 and HfO3 molecules only under visible light irradiation. Density functional calculations predicted that both the ZrO3 and HfO3 molecules possess a closed-shell singlet ground state with a non-planar C8 geometry, in which the side-on coordinated O2 falls into the peroxide category.

关键词： Matrix isolation Transition metal oxide Dioxygen complex Infrared spectrum

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Electrocatalytic water splitting at nitrogen-doped carbon layers-encapsulated nickel cobalt selenide

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Journal of Energy Chemistry 2019年第7期28卷 161-170页

作者： Chuanlai Jiao Xiangjie Bo ming zhou Key Laboratory of Nanobiosensing and Nanobioanalysis at Universities of Jilin Province Key Laboratory of Polyoxometalate Science of Ministry of EducationNational & Local United Engineering Laboratory for Power Batteries Department of Chemistry Northeast Normal University

Generally,the catalytic overpotentials of hydrogen evolution reaction(HER)and oxygen evolution reaction(OER)are unavoidable because of the low charge *** this work,two strategies of alloying of Co with Ni and enclosing of electrocatalysts with carbonaceous materials were both used to accelerate the catalytic efficiency of cobalt selenide for water *** nitrogen-doped carbon(NC)layer improves the reaction kinetics by efficient charge *** alloying of metal into composited electrocatalysts can modify the electronic properties of host materials,thereby tuning the adsorption behavior of intermediate and improving the electrocatalytic *** expected,Nyquist plots reveal that the charge-transfer resistance(Rct)of nickel cobalt selenide encapsulated into nitrogen-doped carbon layer(CoNiSe/NC-3,Co:Ni=1:1)are just 5 and 9 for HER and OER,respectively,which are much lower than those of CoSe/NC-1(Co:Ni=1:0)(81 and 138)and CoNiSe/NC-3 without NC(CoNiSe-3)(54 and 25).With the high charge transfer and porous structure,CoNiSe/NC-3 shows good performance for both HER and *** current density reaches 10 m A cm-2,only 100 and 270 mV overpotentials are required for HER and OER,*** the potential of 1.65 V,full water splitting also can be catalyzed by Co Ni Se/NC-3 with current density of 20 m A cm-2,suggesting that CoNiSe/NC-3 could be used as replacement for noble metal electrocatalysts.

关键词： Nickel cobalt selenide Nitrogen-doped carbon layer Water splitting Hydrogen evolution reaction Oxygen evolution reaction

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Applying Power Margin Tracking Droop Control to Flexible Operation in Multi-terminal DC Collector Systems of Renewable Generation

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CSEE Journal of Power and Energy Systems 2021年第6期7卷 1176-1186页

作者： Shiyi Zhang ming zhou Gengyin Li the State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources North China Electric Power UniversityBeijing 102206China

An emerging multi-terminal looped DC(MTDC)collector system is now advocated for collecting and transferring large-scale renewable ***,it remains an open question as to improving the cooperative control capability of looped converter stations for flexible and robust response to renewable grid-connection *** paper addresses this problem with a novel Power Margin Tracking(PMT)droop control and its corresponding system-level control strategy from the perspective of optimal dispatch of the power *** introducing a power margin correction factor into the droop coefficient,the converter station can make self-adaptive regulations according to its actual available power *** operation verification,a multi-period optimal operation model and a four-terminal simulation model is built to provide optimal control parameters and real-time operation states of converter stations,where the power flow model of the looped MTDC grid with renewables generation is *** case results prove that the proposed control strategy can improve the cooperative operation capability of multiple converter stations,mitigating grid-connected power *** can effectively reduce the DC voltage deviation to enhance the operation stability of the MTDC *** operational robustness of the proposed control strategy under“N−1”fault cases is verified as well.

关键词： Cooperative control optimization DC voltage stability high share of renewable energy penetration looped MTDC collector system PMT droop control strategy

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