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双环戊二烯固定床加氢催化体系研究

燃料化学学报 1997年第6期25卷 492-497页

作者：米镇涛杨军李家玲徐 天津大学化工系

本文对双环戊二烯固定床连续催化加氢合成四氢双环戊二烯进行了研究。通过对催化剂载体γＡｌ２Ｏ３不同表面预处理方法的研究，催化剂活性组分元素的评选，研制出适合该催化加氢体系的负载型镍系催化剂ＡＰＣ２，其Ｎｉ负载量１５％，... 详细信息

本文对双环戊二烯固定床连续催化加氢合成四氢双环戊二烯进行了研究。通过对催化剂载体γＡｌ２Ｏ３不同表面预处理方法的研究，催化剂活性组分元素的评选，研制出适合该催化加氢体系的负载型镍系催化剂ＡＰＣ２，其Ｎｉ负载量１５％，载体是经表面物理化学预处理后的γＡｌ２Ｏ３。在此基础上确定了最佳活化程序。通过对该反应体系工艺条件的研究，较佳的工艺参数为：Ｔ１５０～１６０℃，ＰＨ：１．０ＭＰａ，ＳＶ：２０～３０ｈ１，Ｈ２／ＤＣＰＤ３（ｍｏｌ）。此时双环戊二烯转化率大于９８％，四氢双环戊二烯的收率可达９５％。

关键词：双环戊二烯四氢双环戊二烯催化加氢催化剂

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Multi-model ensemble learning for battery state-of-health estimation:Recent advances and perspectives

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Journal of Energy Chemistry 2025年第1期100卷 739-759页

作者： Chuanping Lin jun xu Delong Jiang Jiayang Hou Ying Liang Zhongyue Zou xuesong Mei State Key Laboratory for Manufacturing Systems Engineering Xi'an Jiaotong University Shaanxi Key Laboratory of Intelligent Robots School of Mechanical Engineering Xi'an Jiaotong University Department of Electrical Engineering and Automation Luoyang Institute of Science and Technology School of Mechanical Engineering Hangzhou Dianzi University

The burgeoning market for lithium-ion batteries has stimulated a growing need for more reliable battery performance monitoring. Accurate state-of-health(SOH) estimation is critical for ensuring battery operational performance. Despite numerous data-driven methods reported in existing research for battery SOH estimation, these methods often exhibit inconsistent performance across different application scenarios. To address this issue and overcome the performance limitations of individual data-driven models,integrating multiple models for SOH estimation has received considerable attention. Ensemble learning(EL) typically leverages the strengths of multiple base models to achieve more robust and accurate outputs. However, the lack of a clear review of current research hinders the further development of ensemble methods in SOH estimation. Therefore, this paper comprehensively reviews multi-model ensemble learning methods for battery SOH estimation. First, existing ensemble methods are systematically categorized into 6 classes based on their combination strategies. Different realizations and underlying connections are meticulously analyzed for each category of EL methods, highlighting distinctions, innovations, and typical applications. Subsequently, these ensemble methods are comprehensively compared in terms of base models, combination strategies, and publication trends. Evaluations across 6 dimensions underscore the outstanding performance of stacking-based ensemble methods. Following this, these ensemble methods are further inspected from the perspectives of weighted ensemble and diversity, aiming to inspire potential approaches for enhancing ensemble performance. Moreover, addressing challenges such as base model selection, measuring model robustness and uncertainty, and interpretability of ensemble models in practical applications is emphasized. Finally, future research prospects are outlined, specifically noting that deep learning ensemble is poised to advance ens

关键词： Lithium-ion battery State-of-health estimation Data-driven Machine learning Ensemble learning Ensemble diversity

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基于快速ADC的伽玛信号的峰值检测方法

核电子学与探测技术 2014年第4期34卷 513-516,537页

作者：李子良闫俊旭朱艳春太原科技大学电子信息工程学院太原030024 太原科技大学机械工程学院太原030024

脉冲中子测井是核测井方法的一个重要分支,它主要测量伽玛信号能谱和时间谱,论文结合脉冲中子能谱测井,对伽玛信号峰值检测做了研究,利用快速ADC将伽玛信号整体采集到FPGA中,通过SPI总线及串行总线将ADC转换后的数据读出,并用MATLAB对... 详细信息

脉冲中子测井是核测井方法的一个重要分支,它主要测量伽玛信号能谱和时间谱,论文结合脉冲中子能谱测井,对伽玛信号峰值检测做了研究,利用快速ADC将伽玛信号整体采集到FPGA中,通过SPI总线及串行总线将ADC转换后的数据读出,并用MATLAB对数据进行了平滑滤波、微分及过零检测等处理,处理结果表明该方法能准确地找出伽玛信号的峰值,为伽玛能谱数据的测量提供了一种新方法。

关键词：伽玛射线伽玛能谱

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Effect of ambient air pollution on daily mortality rates in Guangzhou,China

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Effect of ambient air pollution on daily mortality rates in ...

2011广东省预防医学会学术年会

作者： Ignatius Tak Sun Yu Yong hui Zhang Wilson Wai San Tam Qing Hua yan yan jun xu Xiao jun xun Wei Wu Wen jun Ma Lin Wei Tian Lap Ah Tse Xiang Qian Lao School of Public Health and Primary Care Faculty of MedicineThe Chinese University of Hong Kong Center for Disease Control and Prevention of Guangdong Province

We aimed to investigate the effects of ambient air pollutants on daily mortality in a relatively stable and homogeneous population in Guangzhou,*** mortality,air pollution,and weather data between 2006 and 2009 were *** generalized additive model with poison regression was used to estimate the excessive risks(ERs) of air pollutants(PM,*** NO) on total,cardiovascular and respiratory *** effects of lagO-1 were the greatest for total non-accidental and cardiovascular *** increments of 10μg m in ***,and PM were associated with ERs of 1.54%(95%CI: 1.03-2.06%).1.42%(95%CI:1.06-1.78%),and 1.26%(95%CI:0.86-1.66%) respectively for total non-accidental deaths,and 2.28%(95%CI:1.40-3.16%),1.81%(95%CI:1.20-2.41%).and 1.79%(95%CI:1.11-2.47%) respectively for cardiovascular *** persons who died from respiratory disease,however,the maximum effects occurred at *** ERs for SO,NO,and PM were 1.36%(95%CI:0.23-2.50%),1.47% (95%CI:0.66-2.29%) and 0.93%(95%CI:0.03-1.83%).*** effects of the three air pollutants on mortality were stronger in elderly and in *** ERs in the present study were higher than those reported in *** U.S..and most other Asian *** findings show relatively higher ERs of daily mortality by ambient air pollutants in the center of Guangzhou,China,compared with estimates in other *** studies with accurate exposure measurement among homogeneous population are needed to evaluate the precise magnitudes of the effects of the air pollutants.

关键词： Ambient air pollution Daily mortality Chinese

大孔苯乙烯—二乙烯苯共聚物孔结构稳定性的研究

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离子交换与吸附 1989年第4期5卷 256-262页

作者：严俊黄明德徐荣南华东师范大学化学系

通过溶剂处理和加热处理,研究了致孔剂种类、配比、用量及单体DVB中异构体组成对苯乙烯—二乙烯苯共聚物孔结构稳定性的影响,及其这种影响与共聚物交联度的关系。

关键词：共聚物孔容单体甲苯孔体积芳基甲烷良溶剂致孔剂交联度孔结构二乙烯苯苯乙烯大孔

Genome-wide Transcription Profiling of Chinese Wheat Cultivar“Zhengmai 9023”at Seedling Stage Exposed to Low Phosphate Regime in Hydroponics

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Genome-wide Transcription Profiling of Chinese Wheat Cultiva...

第十二届全国植物基因组学大会

作者： Lei Shi,Chunying Li,Wenbo yang,yan Gao,yan Zhang,jun xu,Wenming Zheng~* College of life sciences,Henan agricultural university,Zhengzhou 450002,China

The Chinese wheat cultivar ’Zhengmai 9023’ has been growing widely in Huanghuai area of China and showed the high phosphate efficiency in wheat *** order to understand its molecular response processes to cope with low phosphate stress,affymetrix wheat Genechips were used to investigate the genome-wide transcript levels of wheat seedling plants exposed to liquid medium with 5μM(low Pi)and 500μM(full Pi) phosphate respectively for 21d in hydroponic *** transcript level changes of low Pi and full Pi plants were then analyses by using 2 fold-changes as *** results indicated that among the

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Intelligent Optimizing Setting Control Method for Shaft Furnace Roasting Process

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Intelligent Optimizing Setting Control Method for Shaft Furn...

2010 Chinese Control and Decision Conference

作者： Ai-jun yan,Zhe xu,Pu Wang College of Electronic Information & Control Engineering,Beijing University of Technology,Beijing,100124,China

＜正＞Due to its synthetic and complex characters,such as multivariable,strong coupling,nonlinearity,the shaft furnace roasting process is very difficult to control in optimizing *** deal with this problem,a hybrid intelligent optimizing setting control approach is *** set points in control loops are produced by the methodology of case-based reasoning（CBR）,followed by real-time appraisal and correction for the purpose of the optimizing on integrated production *** proposed method realized the optimizing control for integrated production indices. The successful application on shaft furnaces from a mineral processing plant in China indicates effectiveness of the proposed method.

关键词： Optimizing Setting Shaft Furnace Intelligent Control

Investigation on crystal growth of A3BC3D2014 type piezoelectric crystals with Bridgman method

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Investigation on crystal growth of A3BC3D2014 type piezoelec...

2011年全国压电和声波理论及器件应用研讨会

作者： An-hua WU,Zhan-liang WANG,yan-qing ZHENG,jun xu Shanghai Institute of Ceramics,Chinese Academy of Science,Shanghai 200050

From 1990’s,lanthanum gallium silicate(langasite,LaGaSiO,has attracted much attention as a potential substrate material for piezoelectric applications because of its high frequency stability and fairly electromechani... 详细信息

关键词： surface acoustic wave material Bridgman method A3BC3D2O14-type crystals

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固醇调节元件结合蛋白与炎症的关系研究进展

生物化学与生物物理进展 2016年第12期43卷 1146-1153页

作者：盘艳君王燕徐健强吴剑锋喻思扬曾高峰赵国军南华大学附属第二医院心血管内科衡阳421001 南华大学附属第二医院麻醉科衡阳421001 中南大学湘雅二医院心血管内科长沙410011 桂林医学院组织胚胎学教研室桂林541004

固醇调节元件结合蛋白(SREBPs)是重要的核转录因子,其主要作用是通过激活胆固醇、脂肪酸和甘油三脂(TG)合成及摄取的相关基因,维持体内脂质代谢的平衡.近年来有研究表明,SREBPs与炎症关系紧密,一方面,SREBPs可以促进炎症的发生和发展,... 详细信息

固醇调节元件结合蛋白(SREBPs)是重要的核转录因子,其主要作用是通过激活胆固醇、脂肪酸和甘油三脂(TG)合成及摄取的相关基因,维持体内脂质代谢的平衡.近年来有研究表明,SREBPs与炎症关系紧密,一方面,SREBPs可以促进炎症的发生和发展,另一方面,炎症可以影响SREBPs的表达,造成脂质代谢紊乱.深入研究SREBPs与炎症的关系,有助于为炎症与脂质代谢紊乱所致相关疾病的防治提供新的方向.

关键词：固醇调节元件结合蛋白炎症脂质代谢

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