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Forensic Study on Objective Evaluation of Visual Acuity of Ametropia with the Event-related Potential P3

Current Medical Science 2023年第3期43卷 609-614页

作者： Fu-quan JIA Fang-liang LUO yan-he xiong Long-long CheNG Zhi-qiang DANG Ji-hui LIU Department of Forensic Medicine Inner Mongolia Medical UniversityHohhot 010059China Judicial Authentication Research Institute Liaoning UniversityShenyang 110036China Shanghai Love Nursing Station Shanghai 200030China Affiliated Zhongshan Hospital of Dalian University Dalian 116001China Dian Regional Forensic Science Institute(Nei Mongol) Hohhot 010041China

Objective In this study,we aimed to assess the characteristics of the P3 component from an event-related potential(ERP)that was induced by visual acuity(VA)***,we sought to provide electrophysiological evidence for the objective evaluation of *** We recruited 32 participants with myopia-related *** reported no other ocular diseases and had an uncorrected VA of 4.0 in both *** used the block letter“E”at different visual angles and orientations as the graphic *** oddball paradigm,consisting of 4 modules,was used for ERP *** standard stimuli of each module were identical,with a visual angle of 1°15′.The visual angles of the target stimuli were 1°15′,55′,24′,and 15′.The VA test was performed on each eye separately for all participants,and all characteristics of the P3 component were *** There was no significant difference in the P3 peak letencies between the target stimulation angle 1°15′group and the 55′group,or between the target stimulation angle 24′group and the 15′*** was a significant difference in the P3 peak letencies between the target stimulation angle 1°15′group and the 24′group as well as the 15′*** was a significant difference in the P3 peak letencies between the target stimulation angle 55′group and the 24′group as well as the 15′*** significant differences were observed in the P3 amplitude between *** In the oddball paradigm,P3 elicitation indicated a cognitive response to the target *** data showed that the characteristics of P3 can be used as an objective evaluation of VA.

关键词： event-related potential P3 visual acuity forensic medicine amplitude

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Multifunctional Nacre‑Like Nanocomposite Papers for Electromagnetic Interference Shielding via heterocyclic Aramid/MXene Template‑Assisted In‑Situ Polypyrrole Assembly

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Nano-Micro Letters 2025年第3期17卷 37-54页

作者： Jinhua xiong Xu Zhao Zonglin Liu he Chen Qian yan Huanxin Lian Yunxiang Chen Qingyu Peng Xiaodong he National Key Laboratory of Science and Technology On Advanced Composites in Special Environments Center for Composite Materials and StructuresHarbin Institute of TechnologyHarbin 150080People’s Republic of China

Robust, ultra-flexible, and multifunctional MXene-basedelectromagnetic interference (EMI) shielding nanocomposite filmsexhibit enormous potential for applications in artificial intelligence,wireless telecommunication, and portable/wearable electronic *** this work, a nacre-inspired multifunctional heterocyclic aramid(HA)/MXene@polypyrrole (PPy) (HMP) nanocomposite paper withlarge-scale, high strength, super toughness, and excellent tolerance tocomplex conditions is fabricated through the strategy of HA/MXenehydrogel template-assisted in-situ assembly of PPy. Benefiting from the"brick-and-mortar" layered structure and the strong hydrogen-bondinginteractions among MXene, HA, and PPy, the paper exhibits remarkable mechanical performances, including high tensile strength (309.7 MPa),outstanding toughness (57.6 MJ m−3), exceptional foldability, and structural stability against ultrasonication. By using the template effect ofHA/MXene to guide the assembly of conductive polymers, the synthesized paper obtains excellent electronic conductivity. More importantly,the highly continuous conductive path enables the nanocomposite paper to achieve a splendid EMI shielding effectiveness (EMI SE) of 54.1 dBat an ultra-thin thickness (25.4 μm) and a high specific EMI SE of 17,204.7 dB cm2g−1. In addition, the papers also have excellent applicationsin electromagnetic protection, electro-/photothermal de-icing, thermal therapy, and fire safety. These findings broaden the ideas for developinghigh-performance and multifunctional MXene-based films with enormous application potential in EMI shielding and thermal management.

关键词： MXene Remarkable mechanical properties heterocyclic aramid Electromagnetic interference shielding Polypyrrole Multifunctionality

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Characteristics of Pattern Visual Evoked Potential in Two Eyes with Varying Visual Acuity in One Eye and Forensic Application

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Current Medical Science 2018年第2期38卷 342-348页

作者： Fu-quan JIA Yu-guang LIANG Xin-yuan ZHANG Fang-liang LUO yan-he xiong Long-long CheNG Ji-hui LIU School of Forensic Medicine China Medical University Shenyang 110122 China Department of Forensic Medicine Inner Mongolia Medical University Hohhot 010059 China Beijing Scales Forensic Center Beijing 100025 China

In this study, we aimed to study the pattern visual evoked potentials （P-VEPs） in two eyes with varying visual acuity in one eye and to provide an objective estimation of visual acuity by comparing P-VEPs in one and two eyes. Thirty subjects were chosen, who had one eye with an acuity of 5.0, 4.85, 4.6, 4.0, or scieropia and obstructed vision and the other eye with an acuity of 5.0, respectively. P-VEPs were detected under the large grating stimuli at 3x4 spatial frequency, moderate grating stimuli （12× 16 spatial frequency） and small grating stimuli （48×64 spatial frequency）. Under large grating stimuli, there was no significant difference in P100 peak latency between the groups, nor was there a significant difference between the amplitude of two eyes and the amplitude of one normal-vision eye. Under moderate and small grating stimuli, there was a significant difference in P100 peak latency between the group with both eyes having an acuity of 5.0 and the group with visual acuity below 4.0 in one eye. There was a significant difference in P100 amplitude between the group with visual acuity of 5.0 in both eyes and the group with one normal-vision eye. There was no significant difference in the amplitude of two eyes and the amplitude of one normal-vision eye between any other two groups. In forensic identification, characteristics and variability of P-VEPs in one and two eyes can be used to identify malingering or decline in visual acuity.

关键词： visual evoked potential decline in visual acuity two eyes forensics

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含不同官能团聚羧酸减水剂的吸附-分散性能

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同济大学学报（自然科学版） 2017年第2期45卷 244-248页

作者：何燕张雄张永娟王义廷同济大学材料科学与工程学院上海201804 同济大学先进土木工程材料教育部重点实验室上海201804

通过水溶液自由基聚合法合成了含有不同官能团的聚羧酸减水剂,并研究了不同结构聚羧酸减水剂的吸附-分散性能,以及其对水泥水化性能的影响.结果表明:含酰胺基的聚羧酸减水剂对水泥浆体流动度的削弱程度最大,含酯基官能团的聚羧酸减水剂... 详细信息

通过水溶液自由基聚合法合成了含有不同官能团的聚羧酸减水剂,并研究了不同结构聚羧酸减水剂的吸附-分散性能,以及其对水泥水化性能的影响.结果表明:含酰胺基的聚羧酸减水剂对水泥浆体流动度的削弱程度最大,含酯基官能团的聚羧酸减水剂对水泥浆体流动度的影响程度较小.含磺酸基团的聚羧酸减水剂吸附性能增强;而含酰胺基及酯基的聚羧酸减水剂的吸附性能削弱.含酯基官能团的聚羧酸减水剂显著延缓了水泥水化诱导期,相比之下,含磺酸基官能团的聚羧酸减水剂提高了水泥水化加速期的最大水化放热速率.

关键词：聚羧酸减水剂官能团吸附量分散性能水化性能

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电致变色器件中WO_3薄膜高温环境性能退化机理

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表面技术 2018年第5期47卷 33-38页

作者：周超周晖张凯锋左华平何延春熊玉卿兰州空间技术物理研究所真空技术与物理国防科技重点实验室兰州730000

目的研究ITO/WO_3/LiTaO_3/NiO_x/Al反射式无机全固态薄膜中WO_3薄膜在高温环境中的性能退化机理。方法采用直流反应磁控溅射法制备电致变色器件和WO_3单层薄膜,并进行高温加热试验。对电致变色整体器件进行反射率变化量的测试,对WO_3... 详细信息

目的研究ITO/WO_3/LiTaO_3/NiO_x/Al反射式无机全固态薄膜中WO_3薄膜在高温环境中的性能退化机理。方法采用直流反应磁控溅射法制备电致变色器件和WO_3单层薄膜,并进行高温加热试验。对电致变色整体器件进行反射率变化量的测试,对WO_3薄膜进行微观结构分析和电化学循环特性分析。结果电致变色器件经不同温度加热后,350℃以下,反射率变化量下降不明显,350℃以上反射率变化量明显降低,WO_3薄膜发生了非晶结构向晶体结构的转变。WO_3薄膜的电化学循环特性为:随着加热温度的升高,电致变色响应时间增大,350℃以上,响应时间急剧增大,电致变色性能降低明显,但电致变色循环稳定性更好。结论 WO_3薄膜疏松多孔的非晶结构能提供更多的离子(电子)注入和传输通道,电致变色性能更好,但疏松多孔结构循环稳定性较差。致密的晶体结构因通道闭合,离子(电子)不易注入和传输,电致变色性能较差,但致密结构循环稳定性较好。

关键词：反射式无机全固态薄膜电致变色 WO3薄膜高温环境退化机理

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谈十层任意互连半孔选化HDI板制作难点及解决方法

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印制电路信息 2017年第8期25卷 40-44页

作者：何艳球熊厚友邓细辉胜宏科技(惠州)股份有限公司广东惠州16211

文章主要介绍一种十层任意互连细线路半孔选化板的制作,结合现有设备针对制程难点进行分析,给出初步解决方案并验证总结。此类板生产流程长,品质较难管控,不断优化制前设计及生产流程,提升品质良率。

关键词：任意互联细线路半孔板选化板

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Component Optimization and Seepage Simulation Method of Resin Based Permeable Brick

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Journal of Renewable Materials 2020年第8期8卷 947-968页

作者： Xiaofu Wang xiong Zhang yan he Chunming Lian Key Laboratory of Advanced Civil Engineering Materials of Education Ministry School of Material Science and TechnologyTongji UniversityShanghai201804China School of Civil Engineering Suzhou University of Science and TechnologySuzhou215011China China Construction Eighth Engineering Bureau Co. Ltd.Shanghai200122China

In order to solve the problem of urban surface runoff,it is necessary to study permeable brick *** test and DMA test were used to study the binder material of permeable brick,and a material with the best mechanical properties was selected as the binder of resin based permeable brick;The permeable brick with single gradation and continuous gradation and porosity of 0.1–0.5 gradient is constructed by 3D modeling *** particle composition and the seepage simulation results of permeable brick under different design parameters were analyzed;A resin-based permeable brick with micro-pores was prepared using the selected binder and desert sand with high roundness as aggregate,and compared with the simulation,its water permeability coefficient is 3.25×10-2 cm/s and the compressive strength is 36.19 *** the seepage simulation of permeable brick,it is known that with the increase of gradation width“value i”,the water permeability coefficient ***,in order to control the number of aggregate particles and obtain better seepage performance,the wide gradation of i≥4 and the design porosity of 0.3–0.4 should be *** study provides a research basis and a simulation method for the component optimization of resin based permeable brick.

关键词： Permeable brick epoxy resin aggregate sponge city

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Real-time observation of dynamic heterogeneity of gold nanorods on plasma membrane with darkfield microscopy

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Science China Chemistry 2019年第8期62卷 1072-1081页

作者： Feng Ge Jianfeng Xue Zonghua Wang Bin xiong yan he Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials College of Chemistry and Chemical Engineering Qingdao UniversityQingdao 266071China Department of Chemistry Tsinghua UniversityBeijing 100084China State Key Laboratory of Chemo/Biosensing and Chemometrics College of Chemistry and Chemical EngineeringCollege of Biology Hunan UniversityChangsha 410082China

The plasma membrane possesses a complicated structure, on which the protein clusters are randomly but orderly distributed to maintain the regular morphology and function of cells. Investigating the detailed dynamic behaviors of nanoparticles(NPs) on cytomembrane is of great importance to understand cellular mechanisms and advance the bio-nano technologies for drug delivery, photothermal therapy, immunotherapy, etc. In this work, to study the dynamic heterogeneous interactions between NPs and cell membrane with high resolution, we established a simple method to efficiently track the translational and rotational diffusion of individual gold nanorods(AuNRs) on cell membranes. This method is based on that an anisotropic AuNR appears as a colored spot under a darkfield microscope(DFM) equipped with a color camera. While obtaining its lateral position, the polar angle of the AuNR can be calculated simultaneously from intensity difference between the R and G channels. Careful analysis shows that the lateral motion of single AuNRs do not follow normal Brownian diffusion, which could be attributed to their hop diffusion in the dynamically varying picket-fence structure of the live cell membrane. Furthermore, 4 different rotationtranslation patterns of the AuNR are observed due to spatiotemporal heterogeneity of the cytomembrane. This simple but robust method for simultaneously obtaining the location and orientation of anisotropic plasmonic nanoparticles could be further applied to the analysis of complicated biological and biomedical processes.

关键词： single particle tracking gold nanorods nanoparticle cell interaction darkfield microscopy

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Shock Tube Measurement of Ethylene Ignition Delay Time and Molecular Collision Theory Analysis

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Chinese Journal of Chemical Physics 2016年第6期29卷 761-766,I0002页

作者： Xiao-he xiong yan-jun Ding Shuo Shi Zhi-min Peng StateKeyLabofPowerSystems DepartmentofThermalEngineeringTsinghuaUniversityBeij'inE100084China

In this study, 75% and 96% argon diluent conditions were selected to determine the ig- nition delay time of stoichiometric mixture of C2Ha/O2/Ar within a range of pressures （1.3-：3.0 arm） and temperatures （1092-1743 K）. Results showed a logarithmic linear rela- tionship of the ignition delay time with the reciprocal of temperatures. Under both two diluent conditions, ignition delay time decreased with increased temperature. By multiple linear regression analysis, the ignition delay correlation was deduced. According to this correlation, the calculated ignition delay time in 96% diluent was found to be nearly five times that in 75% diluent. To explain this discrepancy, the hard-sphere collision theory was adopted, and the collision numbers of ethylene to oxygen were calculated. The total collision numbers of ethylene to oxygen were 5.99×10^30 s^-1cm^-3 in 75% diluent and 1.53×10^29 s^-1cm^-3 in 96% diluent （about 40 times that in 75% diluent）. According to the discrepancy between ignition delay time and collision numbers, viz. 5 times corresponds to 40 times, the steric factor can

关键词： Shock tube Ethylene Ignition delay Molecule collision

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Effects of Polycarboxylate-based Grinding Aid on the Performance of Grinded Cement

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Journal of Wuhan University of Technology(Materials Science) 2021年第5期36卷 682-688页

作者： he yan ZHANG xiong WU Genhuo SHI Pengcheng School of Civil Engineering Suzhou University of Science and TechnologySuzhou 215011China Key Laboratory of Advanced Civil Engineering Materials of Education Ministry Tongji UniversityShanghai 201804China Jiangsu Technology Industrialization and Research Center of Ecological Road Engineering Suzhou 215011China

A molecular modified PCE-type GA was self-synthesized,and the grindability concerning grinding duration and particle size distribution of ground cement was *** time,flowability,hydration heat,mechanical properties and microstructure of the ground cement were also *** results show that:PCE-type GA is effective in cement *** 0.03%PCE-type GA added into cement clinker,the Blain surface area reaches to the highest at every ten minutes,and the volume percent of cement particles with size of(0-32μm)reaches the *** amount of PCE-type GA seems to impair the grinding *** grinding efficiency promotes cement fineness and hence contributes to the cement hydration degree as well as improves the mechanical properties.

关键词： PCE-type GA cement grindability fineness hydration properties

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