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Neighboring Atom Collisions in Solid-State High Harmonic Generation

Ultrafast Science 2021年第1期1卷 23-30页

作者： Ruixin Zuo Alexander Trautmann Guifang Wang Wolf-Rüdiger Hannes Shidong yang Xiaohong Song Torsten Meier Marcelo Ciappina Huynh Thanh Duc weifeng yang Research Center for Advanced Optics and Photoelectronics Department of PhysicsCollege of ScienceShantou UniversityShantouGuangdong 515063China Institute of Mathematics Shantou UniversityShantouGuangdong 515063China Department of Physics and Center for Optoelectronics and Photonics Paderborn(CeOPP) University of PaderbornWarburger Str.100D-33098 PaderbornGermany Key Laboratory of Intelligent Manufacturing Technology of MOE Shantou UniversityShantouGuangdong 515063China Physics Program Guangdong Technion-Israel Institute of TechnologyShantouGuangdong 515063China Technion-Israel Institute of Technology Haifa 32000Israel Ho Chi Minh City Institute of Physics Vietnam Academy of Science and Technology1 Mac Dinh ChiDistrict 1Ho Chi Minh CityVietnam

High harmonic generation(HHG)from solids shows great application prospects in compact short-wavelength light sources and as a tool for imaging the dynamics in crystals with subnanometer spatial and attosecond temporal ***,the underlying collision dynamics behind solid HHG is still intensively debated and no direct mapping relationship between the collision dynamics with band structure has been ***,we show that the electron and its associated hole can be elastically scattered by neighboring atoms when their wavelength approaches the atomic *** reveal that the elastic scattering of electron/hole from neighboring atoms can dramatically influence the electron recombination with its left-behind hole,which turns out to be the fundamental reason for the anisotropic interband HHG observed recently in bulk *** findings link the electron/hole backward scattering with Van Hove singularities and forward scattering with critical lines in the band structure and thus build a clear mapping between the band structure and the harmonic *** work provides a unifying picture for several seemingly unrelated experimental observations and theoretical predictions,including the anisotropic harmonic emission in MgO,the atomic-like recollision mechanism of solid HHG,and the delocalization of HHG in *** strongly improved understanding will pave the way for controlling the solid-state HHG and visualizing the structure-dependent electron dynamics in solids.

关键词： spectrum harmonic collision

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Water molecules regulation for reversible Zn anode in aqueous zinc ion battery:Mini-review

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Chinese Chemical Letters 2024年第8期35卷 50-61页

作者： Jie Zhou Quanyu Li Xiaomeng Hu weifeng Wei Xiaobo Ji Guichao Kuang Liangjun Zhou Libao Chen Yuejiao Chen State Key Laboratory of Powder Metallurgy Central South UniversityChangsha 410083China College of Chemistry and Chemical Engineering Central South UniversityChangsha 410083China

With the low cost,excellent safety and high theoretical specific capacity,aqueous zinc-ion batteries(AZ-IBs)are considered as a potential rival for lithium-ion batteries to promote the sustainable development of large-scale energy storage ***,the notorious Zn dendrites and low Coulombic effi-ciency(CE)limit further development of AZIBs,due to the unstable electrochemical deposition/stripping behavior of Zn anode in aqueous zinc ion *** this review,critical issues and advances are summarized in electrolyte engineering *** strategies are focused on active water molecules during electrochemical process,including high-concentration electrolytes,ionic liquids,gel-polymer elec-trolytes and functional *** suppressed active water molecules,the solvation and de-solvation behavior of Zn^(2+)can be regulated,thereby modulating the electrochemical performance of Zn ***,the inherent problems of these strategies are discussed,and some promising directions are pro-vided on electrolytes engineering for high performance Zn anode in AZIBs.

关键词： Electrolyte engineering Aqueous zinc ion battery Zinc metal anode Dendrite suppression Mildly acidic electrolyte

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An Interpretable Light Attention-Convolution-Gate Recurrent Unit Architecture for the Highly Accurate Modeling of Actual Chemical Dynamic Processes

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Engineering 2024年第8期39卷 104-116页

作者： Yue Li Ning Li Jingzheng Ren weifeng Shen School of Chemistry and Chemical Engineering Chongqing UniversityChongqing 400044China Chongqing Key Laboratory of Catalysis and New Environmental Materials School of Environment and ResourcesChongqing Technology and Business UniversityChongqing 400067China Department of Industrial and Systems Engineering The Hong Kong Polytechnic UniversityHong Kong 999077China

To equip data-driven dynamic chemical process models with strong interpretability,we develop a light attention–convolution–gate recurrent unit(LACG)architecture with three sub-modules—a basic module,a brand-new light attention module,and a residue module—that are specially designed to learn the general dynamic behavior,transient disturbances,and other input factors of chemical processes,*** with a hyperparameter optimization framework,Optuna,the effectiveness of the proposed LACG is tested by distributed control system data-driven modeling experiments on the discharge flowrate of an actual deethanization *** LACG model provides significant advantages in prediction accuracy and model generalization compared with other models,including the feedforward neural network,convolution neural network,long short-term memory(LSTM),and ***,compared with the simulation results of a deethanization model built using Aspen Plus Dynamics V12.1,the LACG parameters are demonstrated to be interpretable,and more details on the variable interactions can be observed from the model parameters in comparison with the traditional interpretable model *** contribution enriches interpretable machine learning knowledge and provides a reliable method with high accuracy for actual chemical process modeling,paving a route to intelligent manufacturing.

关键词： Interpretable machine learning Light attention-convolution-gate recurrent unit architecture Process knowledge discovery Data-driven process model Intelligent manufacturing

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Molecular mechanisms underlying microglial sensing and phagocytosis in synaptic pruning

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Neural Regeneration Research 2024年第6期19卷 1284-1290页

作者： Anran Huo Jiali Wang Qi Li Mengqi Li Yuwan Qi Qiao Yin weifeng Luo Jijun Shi Qifei Cong Clinical Research Center of Neurological Disease The Second Affiliated Hospital of Soochow UniversityInstitute of Neuroscience and Jiangsu Key Laboratory of Neuropsychiatric DiseasesSoochow UniversitySuzhouJiangsu ProvinceChina Department of Neurology and Clinical Research Center of Neurological Disease The Second Affiliated Hospital of Soochow UniversitySuzhouJiangsu ProvinceChina

Microglia are the main non-neuronal cells in the central nervous system that have important roles in brain development and functional connectivity of neural *** brain physiology,highly dynamic microglial processes are facilitated to sense the surrounding environment and *** the brain switches its functional states,microglia are recruited to specific sites to exert their immune functions,including the release of cytokines and phagocytosis of cellular *** crosstalk of microglia between neurons,neural stem cells,endothelial cells,oligodendrocytes,and astrocytes contributes to their functions in synapse pruning,neurogenesis,vascularization,myelination,and blood-brain barrier *** this review,we highlight the neuron-derived“find-me,”“eat-me,”and“don't eat-me”molecular signals that drive microglia in response to changes in neuronal activity for synapse refinement during brain *** review reveals the molecular mechanism of neuron-microglia interaction in synaptic pruning and presents novel ideas for the synaptic pruning of microglia in disease,thereby providing important clues for discovery of target drugs and development of nervous system disease treatment methods targeting synaptic dysfunction.

关键词： complement immune signals microglia molecular signal synapse elimination synapse formation synapse refinement synaptic pruning

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空间调制型全Stokes参量偏振成像系统原理及仿真

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光学学报 2015年第2期35卷 144-150页

作者：胡巧云杨伟锋胡亚东洪津中国科学院安徽光学精密机械研究所安徽合肥230031

空间调制型全Stokes参量偏振成像是针对同一目标不同偏振分量的同时探测技术,以双折射晶体作为调制元件,将Stokes参量S0~S3调制在同一幅图像中,只一次采集便可获得包含4个Stokes参量的调制信息。分析空间调制型全Stokes偏振成像系统的... 详细信息

空间调制型全Stokes参量偏振成像是针对同一目标不同偏振分量的同时探测技术,以双折射晶体作为调制元件,将Stokes参量S0~S3调制在同一幅图像中,只一次采集便可获得包含4个Stokes参量的调制信息。分析空间调制型全Stokes偏振成像系统的探测原理和数学模型。阐明重构偏振图像S0~S3的理论依据,并分析了系统参数的选择对图像重构效果的影响。根据实际系统参数,进行数值仿真模拟成像过程,获取调制图像,使用一种简单的频域解调算法,重构出S0~S3的4幅偏振图像,得到比较满意的重构效果,不仅验证了方案的可行性,同时为仪器设计或器件选型提供参考。

关键词：成像系统偏振成像空间调制 Savart偏光镜仿真重构

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Depositional Environment and Origin of Inertinite-rich Coal in the Ordos Basin

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Acta Geologica Sinica(English Edition) 2024年第4期98卷 1064-1085页

作者： SHI Qingmin ZHAO Jun JI Ruijun XUE weifeng HAN Bo CAI Yue LI Chunhao CUI Shidong College of Geology and Environment Xi’an University of Science and TechnologyXi’an 710054China Shaanxi Coal Chemical Industry Technology Research Institute Co. Ltd.Xi’an 710199China China National Logging Corporation Geological Research InstituteXi’an 710077China

Inertinite-rich coal is widely distributed in the Ordos Basin,represented by the No.2 coal seam of the Middle Jurassic Yan'an *** paper combined coal petrology and geochemistry to analyze the origin of inertinite,changes in the coal-forming environment and control characteristics of *** has shown that there are two forms of inertinite sources in the study *** typical fusinization,wildfire events also play a substantial role in inertinite *** are significant fluctuations in the coal-forming environment of samples at different *** samples were formed in dry forest swamp with low water levels and strong oxidation,which have a high inertinite content,and the samples formed in wet forest swamp and limnic showed low inertinite ***,the inertinite content of different origins does not fully correspond to the depositional environment characterized by dryness and *** inertinites were significantly influenced by climatic conditions,while pyrofusinite was not entirely controlled by climatic conditions but rather directly impacted by wildfire *** high oxygen level was the main factor causing widespread wildfire ***,the combination of wildfire activity and oxidation generates a high content of inertinite in the Middle Jurassic coal of the Ordos Basin.

关键词： inertinite-rich coal wildfire coal petrology geochemistry biomarkers depositional environment

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利用单通道预滤光片提高彩色相机显色能力的方法

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红外与激光工程 2016年第8期45卷 135-140页

作者：崔珊珊裘桢炜洪津孟炳寰杨伟锋中国科学院安徽光学精密机械研究所通用光学定标与表征实验室安徽合肥230031

彩色相机广泛应用于印刷工业、形象艺术、医疗、环境等多个应用领域。在节约成本的前提下,为了保证相机显色效果维持特定范围,提出了利用单通道预滤光片同时对彩色相机总光谱响应曲线进行校正的方法。预滤光片模拟准确度取决于卢瑟条件... 详细信息

彩色相机广泛应用于印刷工业、形象艺术、医疗、环境等多个应用领域。在节约成本的前提下,为了保证相机显色效果维持特定范围,提出了利用单通道预滤光片同时对彩色相机总光谱响应曲线进行校正的方法。预滤光片模拟准确度取决于卢瑟条件的匹配程度,由于滤光片材质、膜层设计、制造工艺水平等的限制,完全符合卢瑟条件是不可能的,单通道预滤光片光谱匹配则会有更大的技术难度。从影响预滤光片模拟准确度的因素出发,采用连续可调谐均匀单色照明光源系统对彩色CCD进行高精度相对光谱响应测试,通过选取合适的评价函数模型,对预滤光片光谱透过率进行仿真拟合,得到最优光谱透过率曲线。以国际照明委员会(CIE)推荐的14种标准测试颜色为参考,采用CIE2000色差公式,对校正前后彩色相机进行理论色差计算。结果表明:增加预滤光片后,平均色差降低73%,相机显色效果得到显著提升。

关键词：视觉光学彩色相机预滤光片匹配色差

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Overview of radar detection methods for low altitude targets in marine environments

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Journal of Systems Engineering and Electronics 2024年第1期35卷 1-13页

作者： yang Yong yang Boyu School of Electronic Science National University of Defense TechnologyChangsha 410073China

In this paper,a comprehensive overview of radar detection methods for low-altitude targets in maritime environments is presented,focusing on the challenges posed by sea clutter and multipath *** performance of the radar detection methods under sea clutter,multipath,and combined conditions is categorized and summarized,and future research directions are outlined to enhance radar detection performance for low-altitude targets in maritime environments.

关键词： radar sea clutter multipath scattering detection low altitude target

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Fresh-Keeping Decision and Coordination of Fresh Agricultural Product Supply Chain Considering Carbon Cap-and-Trade under Different Dominance

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Journal of Systems Science and Systems Engineering 2024年第1期33卷 30-51页

作者： yang yang Guanxin Yao China Institute for Agricultural Equipment Industrial Development Jiangsu UniversityZhenjiang212013China Jiangsu Modern Logistics Research Base Yangzhou UniversityYangzhou225009China

In the context of low carbon,this paper discussed the impact of the carbon cap-and-trade policy on the fresh-keeping decision-making of two-echelon fresh agricultural product supply chains under different dominance,and designed cost-sharing contracts to coordinate the supply chain of fresh agricultural products dominated by suppliers and retailers *** results showed that:dominance has no effect on the fresh-keeping decision and total revenue of fresh agricultural product supply chain,but it affects the internal income distribution,and dominance does not always bring more benefits;the implementation of carbon cap-and-trade reduces the fresh-keeping decision-making of fresh agricultural products supply chain and reduces the free-rider income of followers;the role of higher carbon trading price is twofold,which not only brings about the speculation of leading enterprises,but also promotes the application of low-carbon technologies;consumers’high preference for freshness,low-cost and high-efficiency low-carbon technology are all conducive to improving the fresh-keeping efforts and benefits of the supply chain;cost-sharing contracts can coordinate the supply chain of fresh agricultural products.

关键词： Dominant power carbon cap-and-trade policy fresh agricultural product supply chain fresh-keeping decision-making

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Genetic landscape and clinical significance of cuproptosis-related genes in liver hepatocellular carcinoma

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Genes & Diseases 2024年第2期11卷 516-519页

作者： Dingtao Hu Yichuan Wang Xu Shen Tiantian Mao Xijun Liang Tengjiao Wang weifeng Shen Yugang Zhuang Jin Ding Clinical Cancer Institute Center for Translational MedicineNaval Medical UniversityShanghai 200433China Department of Emergency Shanghai Tenth People's HospitalTongji UniversitySchool of MedicineShanghai 200072China Bioinformatics Analysis Laboratory Center for Translational MedicineNaval Medical UniversityShanghai 200433China The Department of Hepatic Surgery Eastern Hepatobiliary Surgery HospitalNaval Medical UniversityShanghai 200433China

Recently,Peter et al reported a novel form of cell death(cuproptosis)that was different from other known death mechanisms.1 They found that accumulation of copper ions could induce destabilization of Fe-S cluster proteins and aggregation of mitochondrial lipoylated proteins,ultimately resulting in cuproptosis.1 of note,ten genes were identified as cuproptosis-related genes(CRGs)in copper ion-induced cell death,including PDHB,PDHA1,DLAT,DLD,LIPT1,LIAS,FDX1,CDKN2A,GLS,and MTF1.1 Since dysregulation of copper metabolism is involved in many cancers,cuproptosis and CRGs may play vital roles in cancer development and treatment.1.2 Herein,our pancancer analysis revealed the coordinated upregulation of 9 of 10 CRGs in human liver hepatocellular carcinoma(LIHC)across 33 solid tumors(Fig.S1A;Fig.1A),suggesting the distinct role of CRGs in *** then explored the genetic landscape,biological function,and clinical significance of CRGs in LIHC,and validated our bioinformatic findings by in vitro experiments and clinical *** detailed methods were described in the supplementary material.

关键词： clinical metabolism hepatocellular

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