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Nano-Micro Letters 2025年第2期17卷 387-400页

作者： Mengen Ma Cuiling Zhang Yujiao Ma Weile Li Yao Wang Shaohang Wu Chong Liu Yaohua Mai Institute of New Energy technology College of Physics&Optoelectronic EngineeringJinan UniversityGuangzhou 510632People’s Republic of China Key Laboratory of New Semico.ductors and Devices of guangdong Higher Education Institutes Jinan UniversityGuangzhou 510632People’s Republic of China guangdong Mellow Energy co. LimitedYuanming RoadZhuhai 519075GuangdongPeople’s Republic of China

Gas quenching and vacuum quenching process are widely applied to accelerate solvent volatilization to induce nucleation of perovskites in blade-co.ting *** this work,we found these two pre-crystallization processes lead to different order of crystallization dynamics within the perovskite thin film,resulting in the differences of additive *** then tailor-designed an additive molecule named 1,3-bis(4-methoxyphenyl)thiourea to obtain films with fewer defects and holes at the buried interface,and prepared perovskite solar cells with a certified efficiency of 23.75%.Furthermore,this work also demonstrates an efficiency of 20.18%for the large-area perovskite solar module(PSM)with an aperture area of 60.84 cm^(2).The PSM possesses remarkable co.tinuous operation stability for maximum power point tracking of T_(90)>1000 h in ambient air.

关键词： Gas quenching Additive distribution Buried passivation Blade co.ting Crystallization dynamics

Inhibiting ceramide synthase 5 expression in microglia decreases neuroinflammation after spinal co.d injury

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Neural Regeneration Research 2025年第10期20卷 2955-2968页

作者： Wei Zhang Yubao Lu Ruoqi Shen Yingjie Wu Chenrui Liu Xingxing Fang Liangming Zhang Bin Liu Limin Rong Department of Spine Surgery The Third Affiliated HospitalSun Yat-sen UniversityGuangzhouGuangdong ProvinceChina National Medical Products Administration(NMPA)Key Laboratory for Quality Research and Evaluation of Cell Products GuangzhouGuangdong ProvinceChina guangdong Provincial Center for Quality co.trol of Minimally Invasive Spine Surgery GuangzhouGuangdong ProvinceChina guangdong Provincial Center for Engineering and technology Research of Minimally Invasive Spine Surgery GuangzhouGuangdong ProvinceChina

Microglia,the resident monocyte of the central nervous system,play a crucial role in the response to spinal co.d ***,the precise mechanism remains *** investigate the molecular mechanisms by which microglia regulate the neuroinflammatory response to spinal co.d injury,we performed single-cell RNA sequencing dataset analysis,focusing on changes in microglial *** found that the MG1 subpopulation emerged in the acute/subacute phase of spinal co.d injury and expressed genes related to cell pyroptosis,sphingomyelin metabolism,and neuroinflammation at high ***,we established a mouse model of co.tusive injury and performed intrathecal injection of siRNA and molecular inhibitors to validate the role of ceramide synthase 5 in the neuroinflammatory responses and pyroptosis after spinal co.d ***,we established a PC12-BV2 cell co.culture system and found that ceramide synthase 5 and pyroptosis-associated proteins were highly expressed to induce the apoptosis of neuron *** ceramide synthase 5 expression in a mouse model of spinal co.d injury effectively reduced ***,ceramide synthase 5-induced pyroptosis was dependent on activation of the NLRP3 signaling *** ceramide synthase 5 expression in microglia in vivo reduced neuronal apoptosis and promoted reco.ery of neurological ***2g7 formed a“bridge”between sphingolipid metabolism and ceramide synthase 5-mediated cell death by inhibiting the NLRP3 signaling ***,these findings suggest that inhibiting ceramide synthase 5 expression in microglia after spinal co.d injury effectively suppressed microglial pyroptosis mediated by NLRP3,thereby exerting neuroprotective effects.

关键词： ceramide synthase 5 gasdermin D microglia neuroinflammation NLRP3 nuclear factor kappa B Pla2g7 pyroptosis sphingomyelin metabolism spinal co.d injury

Synthesis of Hollow Three-Dimensional Channels LiNi_(0.5)Mn_(1.5)O_4 Microsphere by PEO Soft Template Assisted with Solvothermal Method

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Acta Metallurgica Sinica(English Letters) 2021年第8期34卷 1153-1162页

作者： Jinfeng Zeng Zhiting Liu Hanbo Zou Wei Yang Haosen Fan Haijun Yu Shengzhou Chen School of Chemistry and Chemical Engineering Guangzhou UniversityGuangzhou 510006China guangdong brunp recycling technology co. LtdGuangzhou 510006China Guangzhou Key Laboratory for New Energy and Green Catalysis Guangzhou UniversityGuangzhou 510006China

A appropriate size with three-dimension(3 D) channels for lithium diffusion plays an important role in co.structing highperforming LiNi_(0.5)Mn_(1.5)O_4(LNMO) cathode materials, as it can not only reduce the transport path of lithium ions and electrons, but also reduce the side effects and withstand the structural strain in the process of repetitive Li~+ intercalation/deintercalation. In this work, an e fficient method for designing the hollow LNMO microsphere with 3 D channels structure by using polyethylene oxide(PEO) as soft template agent assisted solvothermal method is proposed. Experimental results indicate that PEO can make the reagents mingle evenly and nucleate slowly in the solvothermal process, thus obtaining a homogeneous distribution of carbonate precursors. In the final LNMO products, the hollow 3 D channels structure obtained by the deco.position of PEO and carbonate precursor in the calcination can provide abundant electroactive zones and electron/ion transport paths during the charge/discharge process, which benefits to improve the cycling performance and rate capability. The LNMO prepared by adding 1 g PEO possesses the most outstanding electrochemical performance, which presented an excellent discharge capacity of 143.1 mAh g~(-1) at 0.1 C and with a capacity retention of 92.2% after 100 cycles at 1 C. The superior performance attributed to the 3 D channels structure of hollow microspheres, which provide uninterrupted co.ductive systems and therefore achieve the stable transfer for electron/ion.

关键词： Polyethylene oxide(PEO) Soft template Solvothermal method Hollow LiNi_(0.5)Mn_(1.5)O_4(LNMO)microsphere Three-dimensional channels

Luminescence properties of red phosphors Ca_(10)Li(PO_4)_7:Eu^(3+)

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Journal of Rare Earths 2011年第5期29卷 440-443页

作者：宋恩海赵韦人周国雄豆喜华易春雨周民康 School of Physics & Optoelectronic Engineering Guangdong University of Technology Huizhou Unihero Semico.ductor Lighting technology co. Ltd.

A series of red phosphors Ca10Li （PO4）7：Eu3＋ were synthesized by high temperature solid-state reaction method. Their luminescence properties were characterized by means of photoluminescence excitation and emission spectra,CIE chromaticity and quantum efficiency. Results indicated that the phosphors co.ld be effectively excited by the near ultraviolet （NUV） light （393 nm）. The main emission peaks of the phosphor were ascribed to the transition 5D0–7F2 （613 and 617 nm） of Eu3＋ ion when samples were excited by 393 nm. The CIE chromaticity （x,y） of Ca9.9Li （PO4）7：0.10Eu3＋ was x=0.638,y=0.361 and the quantum efficiency of this phosphor was 75% excited by 393 nm. Therefore,this phosphor co.ld be a promising red co.ponent for the applications in white LEDs.

关键词： Ca10Li(PO4)7:Eu3+ LED red phosphor rare earths

Mechanism of extracting palladium(Ⅱ) with cyclic sulfoxide derivatives

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中国有色金属学会会刊：英文版 2004年第1期14卷 202-207页

作者：吴松平孟淑媛古国榜庄志强刘会冲 co.lege of Material Science and Engineering South China University of Technology guangdong Fenghua Advanced technology (Holding)co. Ltd Zhaoqing 526020 China guangdong Fenghua Advanced technology (Holding)co. Ltd

The extraction ability of palladium(Ⅱ) from acidic media with cyclic sulfoxide derivatives-α Dodecyl tetrahydrothiophene 1 Oxide (DTMSO), α octyl tetrahydrothiophene 1 Oxide (OTMSO) and α butyl tetrahydrothiophene 1 Oxide (BTMSO) was investigated. The extracting efficiency of cyclic sulfoxide derivatives decreased with the increasing of acidity in the lower acidity, and the efficiency became stable with the change of acidity in the higher acidity. The extraction reaction of palladium(Ⅱ)with DTMSO is exothermic, and extraction reaction of palladium(Ⅱ)is endothermic when OTMSO or BTMSO were used as extracting reagents. The co.rdination number was studied by slope method. The results indicate that co.rdination number is 2, and the co.position of co.plex is (PdCl 2)·2RTMSO. FT IR spectra were used to analyze the structure of co.plex and co.rdinated atom in co.plex, Pd is co.rdinated with both oxygen and sulfur atom in S=O group in sulfoxide derivatives.

关键词：炼钯萃取机制亚砜衍生物萃取剂 DTMSO BTMSO

An optimization-oriented modeling approach using input co.vex neural networks and its application on optimal chiller loading

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Building Simulation 2024年第4期17卷 639-655页

作者： Shanshuo Xing Jili Zhang Song Mu Dalian University of technology Dalian116024China guangdong Airport Baiyun Information technology co. Ltd.Guangzhou510000China

Optimization for the multi-chiller system is an indispensable approach for the operation of highly efficient chiller *** optima obtained by model-based optimization algorithms are dependent on precise and solvable objective *** classical neural networks cannot provide co.vex input-output mappings despite capturing impressive nonlinear fitting capabilities,resulting in a reduction in the robustness of model-based *** this paper,we leverage the input co.vex neural networks(ICNN)to identify the chiller model to co.struct a co.vex mapping between co.trol variables and the objective function,which enables the NN-based OCL as a co.vex optimization problem and apply it to multi-chiller optimization for optimal chiller loading(OCL).Approximation performances are evaluated through a four-model co.parison based on an experimental data set,and the statistical results show that,on the premise of retaining prior co.vexities,the proposed model depicts excellent approximation power for the data set,especially the unseen ***,the ICNN model is applied to a typical OCL problem for a multi-chiller system and co.bined with three types of optimization *** with co.ventional and meta-heuristic methods,the numerical results suggest that the gradient-based BFGS algorithm provides better energy-saving ratios facing co.secutive co.ling load inputs and an impressive co.vergence speed.

关键词： chiller plant input co.vex neural network optimal load distribution co.vex optimization

Effect of Annealing Temperature on Low-temperature Toughness of β-Nucleated Polypropylene Random co.olymer/Ethylene-Propylene-Diene Terpolymer Blends

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Chinese Journal of Polymer Science 2015年第2期33卷 256-264页

作者：丁会利 Li-yuan Guo Dong-jing Li De Zheng Jun Chen Yu-ying Qian Institute of Polymer Science and Engineering Hebei University of Technology guangdong Winner Functional Materials co. Ltd.

In this study, the effect of annealing temperature on the impact toughness of β-nucleated polypropylene random co.olymer（PPR） and ethylene-propylene-diene terpolymer（EPDM） blends was investigated by differential scanning calorimetry（DSC）, wide-angle X-ray diffraction（WAXD）, dynamic mechanical analysis（DMA） and scanning electron microsco.y（SEM）. Interestingly, the impact strength of β-PPR/20 EPDM blend annealed at 120 ℃ is 1.8 times as high as that of unannealed samples. In addition, the crystalline structure, the relaxation of chain segments and fracture morphology of β-PPR/EPDM blends were also investigated to explore the toughening mechanism related to annealing. The results show that annealing at moderate temperatures results in the improvement of integrity of the crystal structure and the relative co.tent of β-phase. The work provides a possible method to toughen the semicrystalline polymer at low temperatures by annealing.

关键词： Polypropylene EPDM β-Nucleating agent Annealing Toughening

Optimal Day-ahead Scheduling of Islanded Microgrid co.sidering Risk-based Reserve Decision

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Journal of Modern Power Systems and Clean Energy 2021年第5期9卷 1149-1160页

作者： Zehuai Liu Siliang Liu Qinhao Li Yongjun Zhang Wenyang Deng Lai Zhou School of Electric Power South China University of TechnologyGuangdong Key Laboratory of Clean Energy TechnologyGuangzhouChina Dongguan Power Supply Bureau of guangdong Power Grid co. Ltd.DongguanChina Guangzhou Power Electrical technology co. Ltd.GuangzhouChina

Due to the lack of support from the main grid,the intermittency of renewable energy sources(RESs)and the fluctuation of load will derive uncertainties to the operation of islanded microgrids(IMGs).It is crucial to allocate appropriate reserve capacity for the eco.omic and reliable operation of *** the high penetration of RESs,it faces both eco.omic and environmental challenges if we only use spinning reserve for reserve *** solve these problems,a multi-type reserve scheme for IMGs is proposed acco.ding to different operation characteristics of generation,load,and *** operation risk due to reserve shortage is modeled by the co.ditional value-at-risk(CVaR)*** co.relation of input variables is co.sidered for the forecasting error modeling of RES and load,and Latin hypercube sampling(LHS)is adopted to generate the random scenarios of the forecasting error,so as to avoid the dimension disaster caused by co.ventional large-scale scenario sampling ***,an optimal day-ahead scheduling model of joint energy and reserve co.sidering riskbased reserve decision is established to co.rdinate the security and eco.omy of the operation of ***,the co.parison of numerical results of different schemes demonstrate the rationality and effectiveness of the proposed scheme and model.

关键词： Day-ahead scheduling risk-based reserve decision co.ditional value-at-risk(CVaR) renewable energy source(RES) islanded microgrids

Power Inco.plete Data Clustering Based on Fuzzy Fusion Algorithm

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Energy Engineering 2023年第1期120卷 245-261页

作者： Yutian Hong Yuping Yan guangdong Electric Power Information technology co. Ltd.Guangzhou520000China guangdong Power Grid co. Ltd.Guangzhou520000China

With the rapid development of the eco.omy,the scale of the power grid is *** number of power equipment that co.stitutes the power grid has been very large,which makes the state data of power equipment grow *** multi-source heterogeneous data have data differences,which lead to data variation in the process of transmission and preservation,thus forming the bad information of inco.plete ***,the research on data integrity has beco.e an urgent *** paper is based on the characteristics of random chance and the Spatio-temporal difference of the *** to the characteristics and data sources of the massive data generated by power equipment,the fuzzy mining model of power equipment data is established,and the data is divided into numerical and non-numerical data based on numerical *** the text data of power equipment defects as the mining ***,the Apriori algorithm based on an array is used to mine *** strong association rules in inco.plete data of power equipment are obtained and *** the change trend of NRMSE metrics and classification accuracy,most of the filling methods co.bined with the two frameworks in this method usually show a relatively stable filling trend,and will not fluctuate greatly with the growth of the missing *** experimental results show that the proposed algorithm model can effectively improve the filling effect of the existing filling methods on most data sets,and the filling effect fluctuates greatly with the increase of the missing rate,that is,with the increase of the missing rate,the improvement effect of the model for the existing filling methods is higher than 4.3%.Through the inco.plete data clustering technology studied in this paper,a more innovative state assessment of smart grid reliability operation is carried out,which has good research value and reference significance.

关键词： Power system equipment parameter inco.plete data fuzzy analysis data clustering

A new measuring method for maximal length, width and thickness dimensions of co.rse aggregates

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Journal of Central South University 2011年第6期18卷 2150-2156页

作者：段跃华张肖宁吴传海 School of Civil Engineering and Transportation South China University of Technology guangdong Hualu co.munications technology co. Ltd.

In order to establish a new method for measuring the dimensions of co.rse aggregates, five different-size flat and elongated (F&E) co.rse aggregates were glued into two specimens by epoxy resin, respectively, and slice images were obtained by X-ray CT, then the aggregates were extracted by the fuzzy c-means clustering algorithm. Attributions of the particle on different cross-sections were determined by the ‘overlap area method’. And unified three-dimensional Cartesian co.rdinate system was established based on co.tinuous slice images. The co.fficient values of spherical harmonics descriptor representing particles surface profile were gained, then each scanned particle was represented by 60×120 discrete points co.formably with spherical harmonics descriptor. The chord length and direction angles were determined by the calculation. With the major axis (L) and orthogonal axis (W and T), the calculated results were co.pared with those measured by caliper. It is co.cluded that the new L, W, and T dimension measuring method is able to take the place of the present manual measurement.

关键词： co.rse aggregate flat and elongated (F&E) aggregate X-ray CT digital image processing fuzzy c-means clustering overlap area method spherical harmonics