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The nature of the deactivation of hydrothermally stable Ni/SiO2–Al2O3 catalyst in long-time aqueous phase hydrogenation of crude 1,4-butanediol

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Chinese Journal of Chemical Engineering 2019年第12期27卷 2960-2967页

作者： Haitao Li Yin Zhang Hongxi Zhang Xiaoqin Qin yalin xu RuifangWu Zheng Jiang Yongxiang Zhao Engineering Research Center of Ministry of Education for Fine Chemicals Shanxi UniversityTaiyuan 030006China Faculty of Engineering and the Environment University of SouthamptonSouthampton SO171BJUK

The deactivation of Ni/SiO2-Al2 O3 catalyst in hydrogenation of crude 1,4-butanediol was *** the operation time of 2140 h,the catalyst showed slow activity *** results,for four spent catalysts used at different time,indicated that the main reason of the catalyst deactivation was the deposition of carbonaceous species that covered the active Ni and blocked mesopores of the *** TPO and SEM measurements revealed that the carbonaceous species included both oligomeric and polymeric species with high C/H ratio and showed *** carbonaceous species might be eliminated through either direct H2 reduction or the combined oxidation-reduction methodologies.

关键词： 1,4-Butanediol Hydrogenation Ni/SiO2–Al2O3 catalyst Deactivation Regeneration

A Deep Residual PLS for Data-Driven Quality Prediction Modeling in Industrial Process

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IEEE/CAA Journal of Automatica Sinica 2024年第8期11卷 1777-1785页

作者： Xiaofeng Yuan Weiwei xu yalin Wang Chunhua Yang Weihua Gui School of Automation Central South UniversityChangsha 410083China She is now with Guangzhou Electromechanical Technician College Guangzhou 510000China

Partial least squares(PLS)model is the most typical data-driven method for quality-related industrial tasks like soft ***,only linear relations are captured between the input and output data in the *** is difficult to obtain the remaining nonlinear information in the residual subspaces,which may deteriorate the prediction performance in complex industrial *** fully utilize data information in PLS residual subspaces,a deep residual PLS(DRPLS)framework is proposed for quality prediction in this *** by deep learning,DRPLS is designed by stacking a number of PLSs successively,in which the input residuals of the previous PLS are used as the layer *** enhance representation,nonlinear function is applied to the input residuals before using them for stacking highlevel *** each PLS,the output parts are just the output residuals from its previous ***,the output prediction is obtained by adding the results of each *** effectiveness of the proposed DRPLS is validated on an industrial hydrocracking process.

关键词： Deep residual partial least squares(DRPLS) nonlinear function quality prediction soft sensor

Ti_(3)C_(2)T_(x) MXene/carbon composites for advanced supercapacitors:Synthesis,progress,and perspectives

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Carbon Energy 2024年第2期6卷 113-142页

作者： Yanqing Cai Xinggang Chen Ying xu yalin Zhang Huijun Liu Hongjuan Zhang Jing Tang College of Materials Science and Engineering North China University of Science and TechnologyTangshanChina Hebei Iron and Steel Laboratory North China University of Science and TechnologyTangshanChina Songshan Lake Materials Laboratory DongguanChina Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular EngineeringEast China Normal UniversityShanghaiChina State Key Laboratory of Petroleum Molecular and Process Engineering(SKLPMPE) Sinopec Research Institute of Petroleum Processing Co.Ltd.BeijingChina Institute of Eco-Chongming ShanghaiChina

MXenes are a family of two-dimensional(2D)layered transition metal carbides/nitrides that show promising potential for energy storage applications due to their high-specific surface areas,excellent electron conductivity,good hydrophilicity,and tunable *** various types of MXenes,Ti_(3)C_(2)T_(x) is the most widely studied for use in capacitive energy storage applications,especially in supercapacitors(SCs).However,the stacking and oxidation of MXene sheets inevitably lead to a significant loss of electrochemically active *** overcome such challenges,carbon materials are frequently incorporated into MXenes to enhance their electrochemical *** review introduces the common strategies used for synthesizing Ti_(3)C_(2)T_(x),followed by a comprehensive overview of recent developments in Ti_(3)C_(2)T_(x)/carbon composites as electrode materials for ***_(3)C_(2)T_(x)/carbon composites are categorized based on the dimensions of carbons,including 0D carbon dots,1D carbon nanotubes and fibers,2D graphene,and 3D carbon materials(activated carbon,polymer-derived carbon,etc.).Finally,this review also provides a perspective on developing novel MXenes/carbon composites as electrodes for application in SCs.

关键词： electrochemical performance MXene/carbon composites supercapacitors

密集温针灸联合Mulligan动态关节松动术治疗肩袖损伤的疗效观察

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中国中医急症 2024年第1期33卷 75-78页

作者：林小余周文姬张海达徐亚林陈飞宇李丽萍浙江中医药大学附属杭州市中医院浙江杭州310017

目的观察密集温针灸联合Mulligan动态关节松动术治疗肩袖损伤的临床疗效。方法将72例患者随机分为观察组与对照组各36例。观察组在肩部痛性筋结处行密集温针灸联合Mulligan动态关节松动术治疗,对照组采用常规穴位温针灸联合Mulligan... 详细信息

目的观察密集温针灸联合Mulligan动态关节松动术治疗肩袖损伤的临床疗效。方法将72例患者随机分为观察组与对照组各36例。观察组在肩部痛性筋结处行密集温针灸联合Mulligan动态关节松动术治疗,对照组采用常规穴位温针灸联合Mulligan动态关节松动术治疗。两组疗程为6周。分别于治疗前及治疗6周后,记录两组肩关节肩疼痛视觉模拟量表(VAS)评分、肩关节功能量表(UCLA)评分、肩关节活动度(ROM),并比较两组临床疗效。结果治疗6周后,两组VAS评分较治疗前明显降低(P<0.05),两组UCLA评分较治疗前明显升高(P<0.05),两组肩关节ROM较治疗前明显增大(P<0.05)。两组间比较,观察组VAS、UCLA、ROM改善均优于对照组(P<0.05);观察组总有效率为94.44%,高于对照组的80.65%(P<0.05)。结论密集温针灸联合Mulligan动态关节松动术可以有效缓解肩部疼痛,恢复肩关节功能及活动度,且临床疗效优于常规穴位温针灸联合Mulligan动态关节松动术。

关键词：肩袖损伤密集温针灸疗法 Mulligan动态关节松动术针刺

Flower-like Fe doped CoP for Enhanced Sodium Ion Batteries

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Flower-like Fe doped CoP for Enhanced Sodium Ion Batteries

中国化学会第十届全国无机化学学术会议

作者： xueying Li yalin xu Xiu Qian Qing Yu School of Environmental and Chemical Engineering Jiangsu University of Science and Technology

Transition metal phosphides with high theory capacity as a promise anode material have been paid more attention. However, the large volume variation of transition metal phosphides would hinder the application in sodium ion batteries. The CoP have high theory capacity. In this work, we fabricated the flower-like Fe doped CoP by in-situ phosphorization of flower-like iron-cobalt hydroxides. We found the Fe doping has significant influence on the morphology controlling of CoP. The flower-like nanostructure could promote the electrolyte accessible and increase the exposed active sites to charge storage. Thereby, the electrode materials exhibit 507 mAh g after 100 cycling at 100 mA g.

关键词： cobalt phosphides sodium ion batteries solvothermal methods

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风味剂对未成年圈养大熊猫摄食竹叶的影响

野生动物学报 2024年第2期45卷 276-290页

作者：鲜义坤黄山刘张育徐亚琳黄明亚邹文勇武伟曾文钟红宇刘娟魏明黄润李果马黎民张贵权四川省自然资源科学研究院成都610041 大熊猫国家公园珍稀动物保护生物学国家林业和草原局重点实验室成都611830 中国大熊猫保护研究中心成都611830 成都大帝汉克生物科技有限公司成都611130 四川省动物采食调控工程技术研究中心成都611130 四川农业大学动物医学院成都611130 吉林农业科技学院中药学院吉林132109 吉林农业大学动物科学技术学院长春130118

为了探究未成年圈养大熊猫(Ailuropoda melanoleuca)选择性摄食的风味机制,根据未成年圈养大熊猫摄食行为特点、熟悉的食物香气和喜欢的食物味道,自主研制出一种未成年圈养大熊猫的专用风味剂。经专业人员的嗅感和口感品评,该风味剂可... 详细信息

为了探究未成年圈养大熊猫(Ailuropoda melanoleuca)选择性摄食的风味机制,根据未成年圈养大熊猫摄食行为特点、熟悉的食物香气和喜欢的食物味道,自主研制出一种未成年圈养大熊猫的专用风味剂。经专业人员的嗅感和口感品评,该风味剂可以改善未成年圈养大熊猫所食竹叶的主要气味和味道。2022年6月—2023年3月,用刺黑竹(Chimonobambusa purpurea)、斑苦竹(Pleioblastus maculatus)、金佛山方竹(Chimonobambusa utilis)和八月竹(***)的竹叶饲喂7只(3,4♀)1.5岁段(15~20月龄)圈养大熊猫幼仔、6只(2,4♀)2.5岁段(27~30月龄)和6只(3,3♀)4.0岁段(45~52月龄)圈养大熊猫亚成体。试验组竹叶喷雾风味剂,对照组竹叶不喷。试验期间,每天早饲和午饲时段各进行30 min的饲喂试验并相互交换两组竹叶所放位置。通过未成年圈养大熊猫的自由选择摄食试验及其摄食过程的录像回放,观测试验组和对照组竹叶的摄食先后顺序、最长连续摄食时间、摄食总时长、摄食竹枝数量和竹叶摄食量。结果表明:(1)风味剂可显著提升1.5岁段受试大熊猫幼仔最先摄食次数的占比;(2)风味剂可显著增加1.5岁段和2.5岁段受试未成年大熊猫摄食竹叶的最长连续摄食时间,平均增加率分别为339.32%和102.59%;(3)风味剂可显著增加1.5岁段和2.5岁段受试未成年大熊猫摄食竹叶的总时长,平均增加率分别为310.45%和129.91%;(4)风味剂可显著提高1.5岁段、2.5岁段和4.0岁段受试未成年大熊猫摄食竹枝数量,平均增食率分别为186.20%、80.87%和103.12%;(5)风味剂可显著提高1.5岁段、2.5岁段和4.0岁段受试未成年大熊猫摄食竹叶量,平均增食率分别为154.21%、118.02%和109.77%。因此,专用风味剂可以增强竹叶对未成年圈养大熊猫的诱食性,具有显著的增食竹叶效果。

关键词：大熊猫未成年风味剂竹叶嗅感品评口感品评饲喂效果

蒙特利尔认知评估量表联合延迟回忆部分限时施测应用于老年人轻度认知功能障碍筛查的研究

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中国康复医学杂志 2018年第1期33卷 59-62,67页

作者：史瑶徐亚林暨南大学附属第一医院康复科广州510630

目的:探讨蒙特利尔认知评估量表联合延迟回忆部分限时施测应用于筛查老年轻度认知功能障碍患者的诊断价值。方法:选择我院就诊的老年患者和健康体检老年人共178例,并以欧洲阿尔茨海默病协会(EADC)的诊断标准为金标准诊断轻度认知功能障... 详细信息

目的:探讨蒙特利尔认知评估量表联合延迟回忆部分限时施测应用于筛查老年轻度认知功能障碍患者的诊断价值。方法:选择我院就诊的老年患者和健康体检老年人共178例,并以欧洲阿尔茨海默病协会(EADC)的诊断标准为金标准诊断轻度认知功能障碍(mild cognitive impairment,MCI),分为正常组92例,病例组86例,采用2×2交叉试验设计,178例均接受常规方法蒙特利尔认知评估量表施测和蒙特利尔认知评估量表联合延迟回忆部分限时施测,应用受试者工作特征曲线(receiver operating characteristic curve,ROC)进行分析,取得最佳截点。结果:(1)常规方法蒙特利尔认知评估量表施测ROC曲线下面积为0.851,蒙特利尔认知评估量表联合延迟回忆部分限时施测曲线下面积为0.917,后者大于前者且差异有显著性意义。(2)常规方法蒙特利尔认知评估量表施测下的最佳截断值为25,对应敏感度为88.37%,特异度为85.37%,蒙特利尔认知评估量表联合延迟回忆部分限时施测下最佳截断值为25,对应敏感度95.35%,特异度78.26%。结论:(1)蒙特利尔认知评估量表联合延迟回忆部分限时施测可应用于老年轻度认知功能障碍筛查诊断,与常规方法蒙特利尔认知评估量表施测相比对老年MCI的诊断价值高。(2)通过ROC曲线确立的截点,可作为应用蒙特利尔认知评估量表联合延迟回忆部分限时施测评价老年轻度认知功能障碍的诊断参考。

关键词：轻度认知功能障碍认知功能障碍筛查蒙特利尔认知评估量表延迟回忆

Maternal dietary patterns associated with bone density in Chinese lactating women and infants at 6 months postpartum:a prospective study using data from 2018-2019

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Food Science and Human Wellness 2024年第5期13卷 2668-2676页

作者： yalin Zhou Xiaoyu Zhu Ying Lü Runlong Zhao Hanxu Shi Wanyun Ye Zhang Wen Rui Li Hanming Huang Yajun xu Department of Nutrition and Food Hygiene School of Public HealthPeking UniversityBeijing100083China PKUHSC-China Feihe Joint Research Institute of Nutrition and Healthy Lifespan Development Beijing 100083China Beijing Northern Hospital Beijing 100089China Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety Peking UniversityBeijing 100083China

This cohort study was designed to explore the relationship between maternal dietary patterns(DPs)and bone health in Chinese lactating mothers and *** recruited 150 lactating women at 1-month *** estimated bone mineral density(eBMD)of subjects’calcanei and the information on dietary intake were *** 5-month follow-up,the eBMD of mothers and their infants were measured *** analysis was applied to determine maternal *** linear models were used to evaluate the association between maternal DPs and maternal eBMD loss or infants’*** all potential covariates adjusted,Factor 2(high intake of whole grains,tubers,mixed beans,soybeans and soybean products,seaweeds,and nuts)showed a positive association with the changes of maternal eBMD(β=0.16,95%CI:0.005,0.310).Factor 3(high intake of soft drinks,fried foods,and puffed foods)was inversely correlated with the changes of maternal eBMD(β=-0.22,95%CI:-0.44,0.00).The changes of maternal eBMD were positively associated with 6-month infants’eBMD(β=0.34,95%CI:0.017,0.652).In conclusion,Factor 2 might contribute to the maintenance of eBMD in lactating women,while Factor 3 could exacerbate maternal eBMD ***,the changes of maternal eBMD presented a positive correlation with 6-month infants’eBMD.

关键词： Dietary patterns Estimated bone mineral density Lactating women

Crocus genome reveals the evolutionary origin of crocin biosynthesis

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Acta Pharmaceutica Sinica B 2024年第4期14卷 1878-1891页

作者： Zhichao xu Shanshan Chen yalin Wang Ya Tian Xiaotong Wang Tianyi Xin Zishan Li Xin Hua Shengnan Tan Wei Sun Xiangdong Pu Hui Yao Ranran Gao Jingyuan Song Key Lab of Chinese Medicine Resources Conservation State Administration of Traditional Chinese Medicine of the People's Republic of ChinaInstitute of Medicinal Plant DevelopmentChinese Academy of Medical Sciences&Peking Union Medical CollegeBeijing 100193China State Key Laboratory of Basis and New Drug Development of Natural and Nuclear Drugs Engineering Research Center of Chinese Medicine ResourceMinistry of EducationBeijing 100193China College of Life Science Northeast Forestry UniversityHarbin 150040China Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine China Academy of Chinese Medical SciencesInstitute of Chinese Materia MedicaBeijing 100700China Analysis and Testing Center of Northeast Forestry University Harbin 150040China School of Pharmacy Anhui Medical UniversityInflammation and Immune Mediated Diseases Laboratory of Anhui ProvinceHefei 230032China

Crocus sativus (saffron) is a globally autumn-flowering plant, and its stigmas are the most expensive spice and valuable herb medicine. Crocus specialized metabolites, crocins, are biosynthesized in distant species, Gardenia (eudicot) and Crocus (monocot), and the evolution of crocin biosynthesis remains poorly understood. With the chromosome-level Crocus genome assembly, we revealed that two rounds of lineage-specific whole genome triplication occurred, contributing important roles in the production of carotenoids and apocarotenoids. According to the kingdom-wide identification, phylogenetic analysis, and functional assays of carotenoid cleavage dioxygenases (CCDs), we deduced that the duplication, site positive selection, and neofunctionalization of Crocus-specific CCD2 from CCD1 members are responsible for the crocin biosynthesis. In addition, site mutation of CsCCD2 revealed the key amino acids, including I143, L146, R161, E181, T259, and S292 related to the catalytic activity of zeaxanthin cleavage. Our study provides important insights into the origin and evolution of plant specialized metabolites, which are derived by duplication events of biosynthetic genes.

关键词： Crocus sativus WGT Crocin biosynthesis Carotenoids Apocarotenoids CCDs