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CO and C_3H_8 total oxidation over Pd/La-Al_2O_3 catalysts: Effect of calcination temperature and hydrothermal treatment

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Journal of Rare Earths 2014年第7期32卷 621-627页

作者：周仁美邢丰王树元鲁继青金凌云罗孟飞 Key Laboratory of the Ministry of Education for Advanced Catalysis Materials Institute of Physical ChemistryZhejiang Normal University

A series of Pd/La-Al2O3（PLA） catalysts with La-Al2O3（LA） support calcined at different temperatures（500, 700, 900 and 1050 oC） were prepared using an incipient wetness impregnation method. The activity of the fresh and hydrothermally aged PLA catalysts were tested for total oxidation of CO and C3H8. The activity of the fresh PLA catalysts for CO and C3H8 oxidation increased with increasing calcination temperature of the support, while the activities of the aged catalysts declined and became essentially the same. CO chemisorption results revealed that the suppressed activities of the aged catalysts were mainly due to the decline of palladium dispersion. The turnover frequency（TOF） of CO oxidation increased with increasing reduction ability of the catalysts, with a fresh catalyst calcined at 1050 oC having the highest value（0.048 s–1）. However, the TOF of C3H8 total oxidation was affected by not only the redox properties of catalysts but also the size of Pd particle, and large Pd particles possessed higher TOF value of C3H8 oxidation, with the highest value（0.125 s–1） being obtained on an aged catalyst calcined at 500 oC.

关键词： Pd/La-Al2O3catalysts stability turnover frequencies hydrothermal ageing rare earths

The goat pan‑genome reveals patterns of gene loss during domestication

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Journal of Animal Science and Biotechnology 2025年第1期16卷 49-58页

作者： Jiaxin Liu Yilong Shi Dongxin Mo lingyun Luo Songsong Xu Fenghua Lv Frontiers Science Center for Molecular Design Breeding(MOE) State Key Laboratory of Animal Biotech BreedingCollege of Animal Science and TechnologyChina Agricultural UniversityBeijing 100193China

Background Unveiling genetic diversity features and understanding the genetic mechanisms of diverse goat pheno-types are pivotal in facilitating the preservation and utilization of these genetic ***,the total genetic diversity within a species can’t be captured by the reference genome of a single *** pan-genome is a col-lection of all the DNA sequences that occur in a species,and it is expected to capture the total genomic diversity of the specific *** We constructed a goat pan-genome using map-to-pan assemble based on 813 individuals,including 723 domestic goats and 90 samples from their wild relatives,which presented a broad regional and global *** total,146 Mb sequences and 974 genes were identified as absent from the reference genome(ARS1.2;GCF_001704415.2).We identified 3,190 novel single nucleotide polymorphisms(SNPs)using the pan-genome *** novel SNPs could properly reveal the population structure of domestic goats and their wild ***/absence variation(PAV)analysis revealed gene loss and intense negative selection during domestication and *** Our research highlights the importance of the goat pan-genome in capturing the missing genetic *** reveals the changes in genomic architecture during goat domestication and improvement,such as gene *** improves our understanding of the evolutionary and breeding history of goats.

关键词： Domestication Goat Improvement Pan-genome Presence/absence variation

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儿科重症监护病房应用镇静护理的价值评析

中国中西医结合儿科学 2019年第5期11卷 452-454页

作者：靳玲云郑州大学附属儿童医院河南省儿童医院郑州市儿童医院重症监护室

目的关于镇静护理在儿科重症监护病房的应用价值与评析。方法选择2013年2月至2015年2月郑州市儿童医院收治的儿科重症监护患儿100例作为研究对象,随机分成对照组和观察组各50例。对照组采用常规护理,观察组采用镇静护理。观察指标为... 详细信息

目的关于镇静护理在儿科重症监护病房的应用价值与评析。方法选择2013年2月至2015年2月郑州市儿童医院收治的儿科重症监护患儿100例作为研究对象,随机分成对照组和观察组各50例。对照组采用常规护理,观察组采用镇静护理。观察指标为患儿接受护理干预后第5天、第10天、第15天的睡眠状况和清醒状态,并对其采用镇静评分表(Ram-say)进行评分。结果观察组患儿第5、10、15天Ram-say评分显著高于对照组,差异有统计学意义(P<0.05)。结论患儿在重症监护病房中接受镇静护理有助于其迅速安静,使其更好的接受治疗,尽快恢复健康。

关键词：镇静护理重症监护病房病房应用儿童

Y_2O_3涂层负载Pd整体式催化剂的制备和催化性能

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催化学报 2007年第7期28卷 635-640页

作者：金凌云何迈鲁继青贾爱平苏孝文罗孟飞浙江师范大学物理化学研究所浙江省固体表面反应化学重点实验室浙江金华321004

以Y(NO3)3为前驱体制备了Y2O3涂层的堇青石蜂窝陶瓷载体.扫描电子显微镜、X射线能谱和超声波振荡等表征结果表明,Y2O3涂层不但具有良好的抗振荡性和粘结强度,而且具有很强的吸附催化剂活性组分(H2PdCl4)的能力,适合制备负载型Pd催化剂.... 详细信息

以Y(NO3)3为前驱体制备了Y2O3涂层的堇青石蜂窝陶瓷载体.扫描电子显微镜、X射线能谱和超声波振荡等表征结果表明,Y2O3涂层不但具有良好的抗振荡性和粘结强度,而且具有很强的吸附催化剂活性组分(H2PdCl4)的能力,适合制备负载型Pd催化剂.以甲苯和乙酸乙酯完全燃烧为模型反应考察了催化剂的活性,发现以Y2O3涂层堇青石蜂窝陶瓷为载体的整体式Pd/Y2O3催化剂具有良好的催化活性和热稳定性,甲苯和乙酸乙酯催化燃烧的T99分别为210和300℃;催化剂经900℃焙烧4 h后,T99仅提高20℃,表明催化剂具有很高的热稳定性.催化剂的X射线衍射、拉曼光谱和程序升温还原结果表明,Pd/Y2O3催化剂经低温焙烧时,Y2O3和PdO均高度分散在堇青石蜂窝陶瓷的表面,而高温焙烧使催化剂活性组分PdO晶粒增大,从而导致催化剂活性下降.

关键词：氧化钇涂层堇青石整体式催化剂钯甲苯乙酸乙酯催化燃烧

The interaction between KIF21A and KANK1 regulates dendritic morphology and synapse plasticity in neurons

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Neural Regeneration Research 2025年第1期20卷 209-223页

作者： Shi-Yan Sun lingyun Nie jing Zhang Xue Fang Hongmei Luo Chuanhai Fu Zhiyi Wei Ai-Hui Tang Hefei National Research Center for Physical Sciences at the Microscale CAS Key Laboratory of Brain Function and DiseaseMinistry of Education Key Laboratory for Membrane-less Organelles and Cellular DynamicsDivision of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefeiAnhui ProvinceChina Institute of Artificial Intelligence Hefei Comprehensive National Science CenterHefeiAnhui ProvinceChina CAS Center for Excellence in Molecular Cell Sciences Division of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefeiAnhui ProvinceChina Department of Neurobiology School of Life SciencesSouthern University of Science and TechnologyShenzhenGuangdong ProvinceChina Brain Research Center Southern University of Science and TechnologyShenzhenGuangdong ProvinceChina

Morphological alterations in dendritic spines have been linked to changes in functional communication between neurons that affect learning and ***-4 KIF21A helps organize the microtubule-actin network at the cell cortex by interacting with KANK1;however,whether KIF21A modulates dendritic structure and function in neurons remains *** this study,we found that KIF21A was distributed in a subset of dendritic spines,and that these KIF21A-positive spines were larger and more structurally plastic than KIF21A-negative ***,the interaction between KIF21A and KANK1 was found to be critical for dendritic spine morphogenesis and synaptic *** of either KIF21A or KANK1 inhibited dendritic spine morphogenesis and dendritic branching,and these deficits were fully rescued by coexpressing full-length KIF21A or KANK1,but not by proteins with mutations disrupting direct binding between KIF21A and KANK1 or binding between KANK1 and *** down KIF21A in the hippocampus of rats inhibited the amplitudes of long-term potentiation induced by high-frequency stimulation and negatively impacted the animals’cognitive *** together,our findings demonstrate the function of KIF21A in modulating spine morphology and provide insight into its role in synaptic function.

关键词： actin cytoskeleton dendrite KANK1 KIF21A microtubule spine morphology spine synaptic plasticity talin1

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特发性脊柱侧弯的护理对策探讨

中国继续医学教育 2015年第29期7卷 233-234页

作者：靳凌云时秋英郑州大学护理学院 450052 河南省郑州大学第二附属医院培训中心 450014

目的研究特发性脊柱侧弯患者的临床护理对策。方法回顾性分析郑州大学第三附属医院骨科收治的80例特发性脊柱侧弯患者的临床资料,总结临床护理经验。结果所有患者均手术成功,术后恢复良好,顺利出院。结论正确认识行手术治疗的特发性脊... 详细信息

目的研究特发性脊柱侧弯患者的临床护理对策。方法回顾性分析郑州大学第三附属医院骨科收治的80例特发性脊柱侧弯患者的临床资料,总结临床护理经验。结果所有患者均手术成功,术后恢复良好,顺利出院。结论正确认识行手术治疗的特发性脊柱侧弯患者心理状态和生理状态,做好术前术后护理工作,有助于促进患者早日恢复健康,减少并发症,提高患者生活质量。

关键词：特发性脊柱侧弯护理并发症

两种杆状病毒的限制性消化和p10基因的定位

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微生物学报 1994年第3期34卷 191-197页

作者：黄永秀齐义鹏李凌云金天全武汉大学病毒学研究所武汉430072

以5和6种限制性内切酶分别消化昆虫杆状病毒SeNPV和LsNPV DNA,求出它们的基因组平均长133kb和164kb.为了定位这两种杆状病毒的p10基因,构建了含有AcNPVp10基因序列的两个探针载体pAcHP106和pAcEP102.从探针载体回收0.18kb和0.42kb的AcNP... 详细信息

以5和6种限制性内切酶分别消化昆虫杆状病毒SeNPV和LsNPV DNA,求出它们的基因组平均长133kb和164kb.为了定位这两种杆状病毒的p10基因,构建了含有AcNPVp10基因序列的两个探针载体pAcHP106和pAcEP102.从探针载体回收0.18kb和0.42kb的AcNPV p10基因序列,制备探针,与SeNPV和LsNPV的酶切片段杂交,得到清晰的杂交图谱,准确的定位了这两种病毒的p10基因.

关键词：杆状病毒 P10 基因基因定位

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挥发性有机物燃烧催化剂的研究进展

化工进展 2020年第S02期39卷 185-195页

作者：王炜月赵培培金凌云岑丙横陈建罗孟飞浙江师范大学物理化学研究所先进催化材料教育部重点实验室浙江金华321004 金华铂锐催化科技有限公司浙江金华321000

挥发性有机物(VOCs)是主要大气污染物质,也是形成PM2.5和臭氧的重要前体。强化挥发性有机物控制,是改善大气环境的重要途径。催化燃烧(氧化)被认为是去除VOCs最有效的方式之一,本文综述了VOCs催化燃烧常用的贵金属催化剂、非贵金属催化... 详细信息

挥发性有机物(VOCs)是主要大气污染物质,也是形成PM2.5和臭氧的重要前体。强化挥发性有机物控制,是改善大气环境的重要途径。催化燃烧(氧化)被认为是去除VOCs最有效的方式之一,本文综述了VOCs催化燃烧常用的贵金属催化剂、非贵金属催化剂。其中,贵金属催化剂主要包括基于Pd、Pt、Ru等的催化剂,非贵金属催化剂主要包括Mn、Co、Ce、Zr等的氧化物,通常贵金属催化剂具有比非贵金属更高的氧化活性和稳定性,但对于含氮VOCs非贵金属催化剂(Mn、Cu)具有更好的氮气选择性,Cr基催化剂对于含氯VOCs燃烧具有更好的效果。此外,还重点讨论了载体、分散度、催化剂制备方法对贵金属催化剂性能的影响,并对发展VOCs氧化催化剂的研究提出了展望。

关键词：挥发性有机物催化作用燃烧反应贵金属催化剂非贵金属催化剂

Nerve root magnetic stimulation regulates the synaptic plasticity of injured spinal cord by ascending sensory pathway

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Neural Regeneration Research 2025年第12期20卷 3564-3573页

作者： Ya Zheng lingyun Cao Dan Zhao Qi Yang Chunya Gu Yeran Mao Guangyue Zhu Yulian Zhu jing Zhao Dongsheng Xu Department of Rehabilitation Medicine Huashan HospitalFudan UniversityShanghaiChina School of Rehabilitation Science Shanghai University of Traditional Chinese MedicineShanghaiChina Department of Rehabilitation Medicine Ruijin HospitalShanghai Jiaotong UniversityShanghaiChina Rehabilitation Medical Center Tongji Hospital Affiliated to Tongji University School of MedicineShanghaiChina Department of Rehabilitation Baoshan BranchShuguang Hospital Affiliated to Shanghai University of Traditional Chinese MedicineShanghaiChina National Center for Neurological Disorders ShanghaiChina Department of Neurology Minhang Hospital Affiliated to Fudan UniversityShanghaiChina Engineering Research Center of Traditional Chinese Medicine Intelligent Rehabilitation Ministry of EducationShanghaiChina Institute of Rehabilitation Medicine Shanghai Academy of Traditional Chinese MedicineShanghaiChina

Promoting synaptic plasticity and inducing functional reorganization of residual nerve fibers hold clinical significance for restoring motor function following spinal cord *** stimulation targeting the nerve roots has been shown to improve motor function by enhancing nerve conduction in the injured spinal cord and restoring the synaptic ultrastructure of both the sensory and motor ***,our understanding of the neurophysiological mechanisms by which nerve root magnetic stimulation facilitates motor function recovery in the spinal cord is limited,and its role in neuroplasticity remains *** this study,we established a model of spinal cord injury in adult male Sprague–Dawley rats by applying moderate compression at the T10 *** then performed magnetic stimulation on the L5 nerve root for 3 weeks,beginning on day 3 *** day 22 post-injury,we observed that nerve root magnetic stimulation downregulated the level of interleukin-6 in the injured spinal cord tissue of ***,this treatment reduced neuronal damage and glial scar formation,and increased the number of neurons in the injured spinal ***,nerve root magnetic stimulation decreased the levels of acetylcholine,norepinephrine,and dopamine,and increased the expression of synaptic plasticity-related m RNA and proteins PSD95,GAP43,and Synapsin *** together,these results showed that nerve root magnetic stimulation alleviated neuronal damage in the injured spinal cord,regulated synaptic plasticity,and suppressed inflammatory *** findings provide laboratory evidence for the clinical application of nerve root magnetic stimulation in the treatment of spinal cord injury.

关键词： dendrite inflammation magnetic stimulation nerve root neurological function neuronal damage neurotransmitter spinal cord injury synaptic plasticity synaptic transmission