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能源化学:英文版 2023年第8期83卷 264-274,I0008页

作者： zili Wang Caiyun Li Yukun Liu Yu Wu Sen Zhang Chao deng Key Laboratory for Photonic and Electronic Bandgap Materials Ministry of EducationCollege of chemistry and chemical engineeringHarbin Normal UniversityHarbin 150025HeilongjiangChina College of Material Science and Chemical Engineering Harbin Engineering UniversityHarbin 150001HeilongjiangChina

The electronic and functional synergies between the twin metal centers make dual single-atom catalysts(DACs) attractive for oxygen electrocatalysis. The catalytic activities of DACs are largely decided by their surrounding micro-environment and supporting substrates. Modulating the micro-environment as well as engineering the efficient support is challenging tasks. Moreover, both are critical to optimizing the performance of DACs. Herein, a novel bio-cooperative strategy is developed to synthesize Fe Ni-DAC wherein Fe-Ni dual-atom sites are embedded in the N, P codoped tyre shaped carbon matrix. The configuration matching of Fe-Ni dual centers together with the local electronic engineering of N, P heteroatoms synergistically boost the catalytic activity on the oxygen reaction. Furthermore, the central-hollow highlyporous carbon matrix not only gives rise to a large amount of active sites, but also facilitates fast *** advantage of both the DAC and the substrate, the Fe Ni-NPC hollow tyre(HT) catalyst scores high in both oxygen reduction and evolution reactions, which exhibits the narrow potential difference and excellent durability. The aqueous Zn-air full battery(ZAB) integrating the Fe Ni-NPC HT air cathode has a high power density and a good stability over long-term cycling. Moreover, the flexible solid-state ZAB assembled with the polymer electrolyte obtains the high reliability over a wide range of temperatures or under diverse outside deformations. Therefore, this work offers a new green approach to prepare highly efficient DACs with built-in modulated micro-environment and tailor-made substrates. Moreover,it also paves a new way to develop highly-pliable power source for flexible electronics.

关键词： FeNi dual sites P,N codoped carbon Bio-assisted stategy Zn-air battery

基于EfficientNet的胃癌舌像变化分析研究

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四川中医 2024年第9期42卷 78-82页

作者：周子力胡文邓巍何绍亚四川省第二中医医院消化内科四川成都610031

目的:通过结合EfficientNet模型研究胃癌舌像变化,分析舌色和苔色的类别,旨在使用便携式中医智能舌诊仪辅助医生做出更准确的诊断和治疗决策,经统计学技术分析不同舌色、苔色的量化指标。方法:采集5000例受试者舌像数据,对照组采用BP神... 详细信息

目的:通过结合EfficientNet模型研究胃癌舌像变化,分析舌色和苔色的类别,旨在使用便携式中医智能舌诊仪辅助医生做出更准确的诊断和治疗决策,经统计学技术分析不同舌色、苔色的量化指标。方法:采集5000例受试者舌像数据,对照组采用BP神经网络和卷积神经网络分别分类舌色和苔色。观察组结合EfficientNet模型辅助BP神经网络和卷积神经网络分别分类舌色和苔色,从而分析胃癌患者舌像的变化特征,并采用评价指标评价模型效果。结果:观察组模型研究胃癌舌像变化,精确率为96.59%。测试集中识别苔色召回率、精确率、准确率分别为92.63%、92.62%、90.60%。识别舌色召回率、精确率、准确率分别为89.61%、88.62%、88.45%。结论:EfficientNet网络模型可以提高识别舌色和苔色变化的效率,这为提高临床医生诊疗决策效率提供了有力支持。

关键词：胃癌舌像变化 EfficientNet 舌色苔色精确率

INFORMATION FUSION STEADY-STATE WHITE NOISE DECONVOLUTION ESTIMATORS WITH TIME-DELAYED MEASUREMENTS AND COLORED MEASUREMENT NOISES

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Journal of Electronics(China) 2009年第2期26卷 161-167页

作者： Sun Xiaojun deng zili Department of Automation Heilongjiang University Harbin 150080 China

White noise deconvolution or input white noise estimation problem has important appli-cation backgrounds in oil seismic exploration,communication and signal *** the modern time series analysis method,based on the Auto-Regressive Moving Average(ARMA) innovation model,under the linear minimum variance optimal fusion rules,three optimal weighted fusion white noise deconvolution estimators are presented for the multisensor systems with time-delayed measurements and colored measurement *** can handle the input white noise fused filtering,prediction and smoothing *** accuracy of the fusers is higher than that of each local white noise *** order to compute the optimal weights,the formula of computing the local estimation error cross-covariances is given.A Monte Carlo simulation example for the system with 3 sensors and the Bernoulli-Gaussian input white noise shows their effectiveness and performances.

关键词： Multisensor information fusion White noise estimator Deconvolution Time-delayed measurement Modern time series analysis method

Self-tuning decoupled fusion Kalman filter based on the Riccati equation

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Frontiers of Electrical and Electronic Engineering in China 2008年第4期3卷 459-464页

作者： Xiaojun SUN Peng ZHANG zili deng Department of Automation Heilongjiang UniversityHarbin 150080China

An online noise variance estimator for multi-sensor systems with unknown noise variances is proposed by using the correlation *** on the Riccati equa-tion and optimal fusion rule weighted by scalars for state components,a self-tuning component decoupled informa-tion fusion Kalman filter is *** is proved that the filter converges to the optimal fusion Kalman filter in a realization by dynamic error system analysis method,so that it has asymptotic *** effectiveness is demon-strated by simulation for a tracking system with 3 sensors.

关键词： multi-sensor information fusion decoupled fusion self-tuning fuser Kalman filter convergence in a realization

Multi-model Multisensor Robust Weighted Fusion Kalman Estimators with Uncertain Variance Linearly Correlated White Noises

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Multi-model Multisensor Robust Weighted Fusion Kalman Estima...

高端商务车铝合金转向节精密铸锻复合成形工艺优化

第36届中国控制会议

作者： Xuemei Wang deng zili Department of Automation Heilongjiang University Heilongjiang College of Business and Technology

ISBN: (纸本)9781538629185

For multi-model multisensor system with uncertain variance linearly correlated white noises,the problems of designing robust weighted fusion Kalman estimators（predictor,filter,smoother） are *** to the minimax robust estimation principle,applying Lyapunov equation approach,a unified design approach to obtain the local and three weighted fusion robust Kalman estimators of the common state is presented where the robust Kalman filter and smoother are designed based on the robust Kalman *** three weighted fiisers include the fiisers weighted by matrices,scalar and diagonal *** is proved that their actual estimation error variances are guaranteed to have the corresponding minimal upper *** accuracy relations are also *** results are given to verify the robustness and robust accuracy relations.

关键词： Uncertain-variance multi-model minimax robust Kalman estimator linearly correlated white noises weighted fusion

来源： cnki会议评论

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锻压技术 2024年第8期49卷 1-5页

作者：夏巨谌邓磊张茂张嘉城王新云冯仪余俊夏自力华中科技大学材料科学与工程学院湖北武汉430074 武汉新威奇科技有限公司湖北武汉430074

以A356铝合金转向节作为典型案例,详细分析了零件的材料、结构和性能特性,以及现有生产工艺存在的不足之处。在对比分析3种铝合金挤压铸造成形工艺优缺点的基础上,提出对精密挤压铸件进行小飞边精锻,通过塑性成形来提高零件内部的致密度... 详细信息

以A356铝合金转向节作为典型案例,详细分析了零件的材料、结构和性能特性,以及现有生产工艺存在的不足之处。在对比分析3种铝合金挤压铸造成形工艺优缺点的基础上,提出对精密挤压铸件进行小飞边精锻,通过塑性成形来提高零件内部的致密度,进而达到提高其力学性能和承载能力的目的。通过对精锻成形工艺的机理分析,建立了工艺参数优化模型,明确了转向节挤压铸造与小飞边精锻复合工艺流程。经过试产验证,该工艺方案具有工艺流程短、节材、节能、制件质量高、生产成本低、经济效益好等特点,受到国内外高端客户的欢迎。

关键词：铝合金转向节挤压铸造精密铸锻复合成形小飞边精锻

脉冲相干激光测风FFT和fCWT融合算法的研究

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激光杂志 2024年第7期45卷 78-84页

作者：邓旭锋冯振中汤磊尹微王云石范琪周鼎富黄自力西南技术物理研究所成都610041 中国兵器科学研究院北京100089

在脉冲相干激光雷达测风中,广泛使用的FFT算法运算简便快速,但测风的距离分辨率难以进一步提高,而连续小波变换(CWT)等时频分析方法具有时频精细分析能力,但计算实时性差,提出了一种结合FFT和快速连续小波变换(fCWT)优势的融合算法,算... 详细信息

在脉冲相干激光雷达测风中,广泛使用的FFT算法运算简便快速,但测风的距离分辨率难以进一步提高,而连续小波变换(CWT)等时频分析方法具有时频精细分析能力,但计算实时性差,提出了一种结合FFT和快速连续小波变换(fCWT)优势的融合算法,算法继承了CWT精细分析能力,而运算速度显著加快。通过对融合算法以及CWT、FFT算法就雷达测风仿真数据及实测数据进行对比,融合算法及CWT和FFT算法绘制的风速曲线趋势一致,但具有更丰富细节,融合算法计算时间相比CWT算法减少了45%以上。此融合算法为提高脉冲相干激光测风雷达测风性能提供了一种新思路。

关键词：激光测风傅里叶变换快速连续小波变换线性拟合大气分层模型

Low-strain binary hexacyanoferrate nanocuboids with concentration-gradient structure towards fast and durable energy storage

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Journal of Energy Chemistry 2022年第11期31卷 72-84,I0004页

作者： Yutong Lin Bing Han Donglan Zhang Xueya Liu zili Wang Zhengyu Wang Liang Si Sen Zhang Chao deng Key Laboratory for Photonic and Electronic Bandgap Materials Ministry of EducationCollege of Chemistry and Chemical EngineeringHarbin Normal UniversityHarbin 150001HeilongjiangChina College of Materials Science and Chemical Engineering Harbin Engineering UniversityHarbin 150001HeilongjiangChina

The exploration of low-strain and high-performance electrode is a crucial issue for aqueous potassiumion battery(AKIB).Herein,a novel potassium mediated iron/manganese binary hexacyanoferrate nanocuboid,i.e.,K_(x)Fe_(y)Mn_(1-y)[Fe(CN)_(6)]·nH_(2)O(KFeMnHCF)nanocuboid,with the concentration-gradient(CG)structure is designed as a high-performance cathode for *** the CG-KFeMnHCF nanocuboids,the manganese content gradually decreases from the interior to the surface and the iron content changes reverse,resulting in the concentration-gradient *** experimental and finite element simulation(FEA)results demonstrate the lower internal stress and better mechanical characteristics of CG structured nanocuboid than the homogenous structured one upon ion intercalation/deintercalation ***,the electrochemical testing and theoretical calculation(DFT)results disclose the substitution of Fe to Mn in the KMnHCF crystal results in the enhanced electronic conductivity,potassium migration and electrochemical *** both advantages from the well-designed architecture and optimized crystal structure,the CG-KFeMnHCF achieves the superior rate capability and ultrahigh stability in aqueous potassium ion *** particular,the CG-KFe_(0.31)Mn_(0.69)HCF achieves the best comprehensive properties among all the *** full AKIBs based on CG-KFe_(0.31)Mn_(0.69)HCF cathode achieves the high energy density(83 Wh kg^(-1)),superior power density,high capacity retention(83%)over high-rate long-term cycles,good adaptation to a wide temperature range(-20 to 40℃)and high reliability even under outside ***,this work not only provides a new clue to design the highperformance cathode,but also promotes the applications of AKIBs for diverse electronics and wide working environments.

关键词： Concentration-gradient structure Binary hexacyanoferrate nanocuboid AKIBs Low-strain FEA modeling

结直肠癌根治术后患者Tim-3、galectin-9表达水平与其临床病理特征及预后的关系

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四川大学学报（医学版） 2024年第2期55卷 375-382页

作者：张怡然邓丹尹万罗俊刘金星谢臣健季星利马立张莉夏仙根程胜君黄安亮杨帆成都中医药大学医学与生命科学学院成都611137 成都市第五人民医院(成都中医药大学附属第五人民医院/第二临床医学院)病理科成都市肿瘤防治所成都611137 成都市第二人民医院检验科成都610017

目的结直肠癌经根治术治疗后仍有部分患者易复发且预后较差,因此,寻找结直肠癌根治术患者预后判断的潜在生化标志物和药物靶点,对于优化此类群体临床结局具有积极意义。近年来新发现T细胞免疫球蛋白及黏蛋白结构域分子3(T cell immunog... 详细信息

目的结直肠癌经根治术治疗后仍有部分患者易复发且预后较差,因此,寻找结直肠癌根治术患者预后判断的潜在生化标志物和药物靶点,对于优化此类群体临床结局具有积极意义。近年来新发现T细胞免疫球蛋白及黏蛋白结构域分子3(T cell immunoglobulin and mucin domain protein 3, Tim-3)及其配体半乳糖凝集素9(galactose lectin 9,galectin-9)在包括结直肠癌等多种肿瘤引起的免疫功能障碍中扮演着关键角色,但是其在结直肠癌中的表达、生物学作用与预后的价值尚不明确,故而本文旨在探究结直肠癌根治术患者Tim-3、galectin-9表达水平与其临床病理特征及预后的关系。方法选择2018年2月–2019年3月于成都市第五人民医院进行结直肠癌根治术治疗患者171例,采用免疫组化测定患者癌组织样本及癌旁组织中Tim-3、galectin-9的表达情况,并分析其与患者基线参数的关系。利用Kaplan-Meier法分析Tim-3、galectin-9与结直肠癌患者无复发生存期(relapse-free survival, RFS)和总生存期(overall survival, OS)的关系,Cox回归分析影响患者预后不良因素。结果免疫组化结果显示,结直肠癌组织中Tim-3、galectin-9的高表达率分别为70.18%(120/171)、32.16%(55/171),而低表达率分别为29.82%(51/171)、67.84%(116/171)。同时,结直肠癌组织Tim-3的表达评分相较于配对癌旁组织偏高,而galectin-9的表达评分则偏低(Prank=22.66,Prank=19.71,Prank=19.45,Prank=22.24,P<0.001)。Cox多因素分析表明,TNM分期Ⅲ期[风险比(hazards ratio, HR)=2.26,95%置信区间(confidence interval, CI):1.20~5.68]以及Tim-3高表达(HR=0.80,95%CI:0.33~0.91)、galectin-9低表达(HR=1.80,95%CI:1.33~4.70)均为影响患者RFS和OS的独立危险因素(P<0.05)。结论结直肠癌组织中Tim-3、galectin-9呈现异常表达,其中高表达Tim-3、低表达galectin-9与不良临床病理特征及预后关系紧密,是患者不良预后事件的独立影响因素,有望成为新的治疗靶点和临床指标。

关键词：结直肠癌 T细胞免疫球蛋白及黏蛋白结构域分子3 半乳糖凝集素9 临床病理特征预后判断