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生物油和活化胶粉共混改性老化沥青

功能材料 2024年第3期55卷 3184-3190页

作者：胡春华孙兆斌湖北工业大学土木建筑与环境学院武汉430068

为改善再生沥青路面(RAP)的再生混合料性能,将不同掺量微波活化胶粉(ACR)和废食用油(WCO)加入到老化沥青中,对其进行流变性能、微观特性分析。结果表明:WCO不仅可以作为再生剂改善老化沥青,而且还可以作为增溶剂充分溶胀胶粉提升沥青的... 详细信息

为改善再生沥青路面(RAP)的再生混合料性能,将不同掺量微波活化胶粉(ACR)和废食用油(WCO)加入到老化沥青中,对其进行流变性能、微观特性分析。结果表明:WCO不仅可以作为再生剂改善老化沥青,而且还可以作为增溶剂充分溶胀胶粉提升沥青的综合性能;荧光显微镜(FM)分析表明,适量WCO有助于提升胶粉在沥青中的相容性。傅立叶红外光谱(FTIR)结果表明,老化沥青再生过程为物理共混,而胶粉改性过程伴随着少量的化学反应。最后,结合改性再生沥青的流变结果与微观结构,建议WCO和ACR的最佳用量为10%和18%。

关键词：废食用油(WCO) 微波活化胶粉(ACR) 老化沥青流变性能

蛋壳粉对偏高岭土水泥基材料耐硫酸盐性的影响

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太原理工大学学报 2024年第5期55卷 874-880页

作者：胡春华马腾湖北工业大学土木建筑与环境学院武汉430064

【目的】确定蛋壳粉和偏高岭土作为水泥替代材料时的最佳复合配合比,以提高水泥砂浆的强度和净浆的耐硫酸盐性。【方法】将蛋壳粉和偏高岭土以不同的质量比替代水泥来制作试件,分别测试了水泥砂浆强度和净浆耐硫酸盐性。通过综合分析两... 详细信息

【目的】确定蛋壳粉和偏高岭土作为水泥替代材料时的最佳复合配合比,以提高水泥砂浆的强度和净浆的耐硫酸盐性。【方法】将蛋壳粉和偏高岭土以不同的质量比替代水泥来制作试件,分别测试了水泥砂浆强度和净浆耐硫酸盐性。通过综合分析两种测试结果得出蛋壳粉和偏高岭土复合水泥的最佳配合比。【结果】强度试验结果表明:掺量20%的偏高岭土对水泥强度提升最为显著,掺量增加到30%后水泥强度会明显降低。在固定20%偏高岭土掺量的基础上,掺入5%的蛋壳粉时,水泥砂浆的强度仍能保持在与偏高岭土掺量20%时相近的水平。但如果蛋壳粉掺量增加到10%,则水泥强度会明显降低。耐硫酸盐性试验结果表明,单独掺入10%和20%的偏高岭土会导致水泥基材料在硫酸盐环境中发生体积膨胀并且破碎,而在掺入蛋壳粉后则会缓解这一现象。单掺蛋壳粉试件与纯水泥试件表现出了相同的耐硫酸盐性。【结论】蛋壳粉和偏高岭土以适宜的比例复合使用,在提升强度的同时能保持耐硫酸盐性。

关键词：蛋壳粉偏高岭土强度硫酸盐侵蚀膨胀开裂

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High-quality genome assemblies for two Australimusa bananas(Musa spp.)and insights into regulatory mechanisms of superior fiber properties

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Plant Communications 2024年第1期5卷 245-261页

作者： Run Zhou Shuo Wang Ni Zhan Weidi He Guiming Deng Tongxin Dou Xi-Tong Zhu Wen-Zhao Xie Yu-Yu Zheng chunhua hu Fangcheng Bi huijun Gao Tao Dong Siwen Liu Chunyu Li Qiaosong Yang Lingqiang Wang Jia-Ming Song Jiangbo Dang Qigao Guo Ganjun Yi Ling-Ling Chen Ou Sheng Institute of Fruit Tree Research Guangdong Academy of Agricultural SciencesKey Laboratory of South Subtropical Fruit Biology and Genetic Resource UtilizationMinistry of Agriculture and Rural AffairsGuangdong Provincial Key Laboratory of Tropical and Subtropical Fruit Tree ResearchGuangzhou 510640China College of Informatics Huazhong Agricultural UniversityWuhan 430070China State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources College of Life Science and TechnologyGuangxi UniversityNanning 530004China College of Horticulture and Landscape Architecture Southwest UniversityChongqing 400715China

Bananas(Musa spp.)are monocotyledonous plants with high genetic diversity in the Musaceae family that are cultivated mainly in tropical and subtropical *** fruits are a popular food,and the plants themselves have diverse *** genetic groups(genomes)are thought to have contributed to current banana cultivars:Musa acuminata(A genome),Musa balbisiana(B genome),Musa schizocarpa(S genome),and species of the Australimusa section(T genome).However,the T genome has not been effectively ***,we present the high-quality TT genomes of two representative accessions,Abaca(Musa textilis),with high-quality naturalfiber,and Utafun(Musa troglodytarum,Fe’i group),with abundant *** the Abaca and Utafun assemblies comprise 10 pseudochromosomes,and their total genome sizes are 613 Mb and 619 Mb,*** genome analysis revealed that the larger size of the T genome is likely attributable to rapid expansion and slow removal of *** with those of Musa AA or BB accessions or sisal(Agava sisalana),Abacafibers exhibit superior mechanical properties,mainly because of their thicker cell walls with a higher content of cellulose,lignin,and *** of MusaCesA cellulose synthesis genes peaks earlier in Abaca than in AA or BB accessions during plant development,potentially leading to earlier cellulose accumulation during secondary cell wall *** Abaca-specific expressed gene MusaMYB26,which is directly regulated by MusaMYB61,may be an important regulator that promotes precocious expression of secondary cell wall ***,MusaWRKY2 and MusaNAC68,which appear to be involved in regulating expression of MusaLAC and MusaCAD,may at least partially explain the high accumulation of lignin in *** work contributes to a better understanding of banana domestica-tion and the diverse genetic resources in the Musaceae family,thus providing resources for Musa genetic improvement.

关键词： Australimusa bananas T genome Musaceae evolution structural variations fiber

瑞马唑仑复合地氟烷全身麻醉联合氟马西尼拮抗在眼科日间手术中的应用

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实用医学杂志 2024年第4期40卷 537-542页

作者：胡春华王古岩王惠军奚春花张丛雅吴黎黎首都医科大学附属北京同仁医院麻醉科北京100730

目的探讨瑞马唑仑复合地氟烷全身麻醉联合氟马西尼拮抗用于眼科日间手术的麻醉效果。方法前瞻性随机对照试验,选择择期喉罩全身麻醉的眼科日间手术患者64例,随机分为丙泊酚组(n=32)和瑞马唑仑组(n=32)。丙泊酚组给予丙泊酚麻醉诱导,丙... 详细信息

目的探讨瑞马唑仑复合地氟烷全身麻醉联合氟马西尼拮抗用于眼科日间手术的麻醉效果。方法前瞻性随机对照试验,选择择期喉罩全身麻醉的眼科日间手术患者64例,随机分为丙泊酚组(n=32)和瑞马唑仑组(n=32)。丙泊酚组给予丙泊酚麻醉诱导,丙泊酚复合地氟烷麻醉维持;瑞马唑仑组给予瑞马唑仑麻醉诱导,瑞马唑仑复合地氟烷麻醉维持,术毕静脉注射氟马西尼拮抗。两组术中均持续静脉输注瑞芬太尼。主要结局为苏醒时间,次要结局包括术中血液动力学变化、拔管时间、离开手术室的时间、术后恢复室(PACU)停留时间以及围术期其他不良反应的发生情况。结果瑞马唑仑组的苏醒时间、拔管时间和离开手术室时间均显著短于丙泊酚组(P0.05)。结论瑞马唑仑复合地氟烷全身麻醉联合氟马西尼拮抗用于眼科日间手术麻醉管理,可显著缩短患者的苏醒时间及拔管时间,有助于维持血流动力学稳定,不良反应少,提高眼科日间手术的安全性,值得临床推广应用。

关键词：瑞马唑仑地氟烷氟马西尼丙泊酚日间手术

Two haplotype-resolved genome assemblies for AAB allotriploid bananas provide insights into banana subgenome asymmetric evolution and Fusarium wilt control

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Plant Communications 2024年第2期5卷 243-260页

作者： Wen-Zhao Xie Yu-Yu Zheng Weidi He Fangcheng Bi Yaoyao Li Tongxin Dou Run Zhou Yi-Xiong Guo Guiming Deng Wenhui Zhang Min-hui Yuan Pablo Sanz-Jimenez Xi-Tong Zhu Xin-Dong Xu Zu-Wen Zhou Zhi-Wei Zhou Jia-Wu Feng Siwen Liu Chunyu Li Qiaosong Yang chunhua hu huijun Gao Tao Dong Jiangbo Dang Qigao Guo Wenguo Cai Jianwei Zhang Ganjun Yi Jia-Ming Song Ou Sheng Ling-Ling Chen Institute of Fruit Tree Research Guangdong Academy of Agricultural SciencesKey Laboratory of South Subtropical Fruit Biology and Genetic Resource UtilizationMinistry of Agriculture and Rural AffairsGuangdong Provincial Key Laboratory of Tropical and Subtropical Fruit Tree ResearchGuangzhou 510640China College of Informatics Huazhong Agricultural UniversityWuhan 430070China State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources College of Life Science and TechnologyGuangxi UniversityNanning 530004China College of Horticulture and Landscape Architecture Southwest UniversityChongqing 400715China

Bananas(Musa spp.)are one of the world’s most important fruit crops and play a vital role in food security for many developing *** banana cultivars are triploids derived from inter-and intraspecific hybrid-izations between the wild diploid ancestor species Musa acuminate(AA)and ***(BB).We report two haplotype-resolved genome assemblies of the representative AAB-cultivated types,Plantain and Silk,and precisely characterize ancestral contributions by examining ancestry mosaics across the *** asymmetric evolution is observed in their subgenomes,which can be linked to frequent homol-ogous exchange *** reveal the genetic makeup of triploid banana cultivars and verify that subge-nome B is a rich source of disease resistance *** 58.5%and 59.4%of Plantain and Silk genes,respectively,are present in all three haplotypes,with>50%of genes being differentially expressed alleles in different *** observed that the number of upregulated genes in Plantain is significantly higher than that in Silk at one-week post-inoculation with Fusarium wilt tropical race 4(Foc TR4),which con-firms that Plantain can initiate defense responses faster than ***,we compared genomic and transcriptomic differences among the genes related to carotenoid synthesis and starch metabolism between Plantain and *** study provides resources for better understanding the genomic architecture of culti-vated bananas and has important implications for Musa genetics and breeding.

关键词： bananas Plantain Silk asymmetric evolution homologous exchange Fusarium wilt

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电能计量装置异常状态监测方法研究

自动化仪表 2024年第3期45卷 64-69页

作者：刘卫新胡春华国网新疆电力有限公司电力科学研究院新疆乌鲁木齐830000 烟台东方威思顿电气有限公司山东烟台264000

电能计量装置计量过程中,受功率谱谐波震颤强度影响,其状态指标数据呈现高度混沌状态,导致监测性能较差。为此,提出基于改进聚类分析的电能计量装置异常状态监测方法。通过构建电能计量装置状态评估体系,选取具有评估价值的技术指标及... 详细信息

电能计量装置计量过程中,受功率谱谐波震颤强度影响,其状态指标数据呈现高度混沌状态,导致监测性能较差。为此,提出基于改进聚类分析的电能计量装置异常状态监测方法。通过构建电能计量装置状态评估体系,选取具有评估价值的技术指标及其对应的参数指标,并将相关指标参数视为待分类对象,以获取电能计量装置运行状态的混沌样本数据。利用蚁群算法优化K-Means聚类方法的聚类指标数据,实现电能计量装置状态监测。试验结果表明:该方法应用后的电能计量装置异常状态检出率较高,并且预测值与实际值的拟合率、准确率均较高。该方法监测性能较好。

关键词：电能计量装置谐波震颤强度互感器功率谱状态监测多变量相空间重构特征向量 K-Means聚类

术中多模式镇痛对终末期头颈部癌症患者开腹胃造瘘术后早期恢复质量的影响:前瞻性随机对照研究

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协和医学杂志 2024年第2期15卷 359-365页

作者：胡春华赵晓艳吴黎黎陈红芽许鑫王古岩首都医科大学附属北京同仁医院麻醉科北京100730

目的评估术中多模式镇痛在终末期头颈部癌症患者开腹胃造瘘术后早期恢复中的作用。方法本研究为前瞻性、平行、随机对照研究,研究对象为2022年11月—2023年5月首都医科大学附属北京同仁医院择期行开腹胃造瘘术的终末期头颈部癌症患者。... 详细信息

目的评估术中多模式镇痛在终末期头颈部癌症患者开腹胃造瘘术后早期恢复中的作用。方法本研究为前瞻性、平行、随机对照研究,研究对象为2022年11月—2023年5月首都医科大学附属北京同仁医院择期行开腹胃造瘘术的终末期头颈部癌症患者。按1∶1比例随机将其分为局麻组和多模式镇痛组。局麻组术中予以0.25%罗哌卡因20~30 mL局部浸润麻醉;多模式镇痛组麻醉方式为神经阻滞+静脉镇痛:在超声引导下行左侧腹横肌平面阻滞(0.25%罗哌卡因0.3 mL/kg)+双侧腹直肌鞘阻滞(每侧注射0.25%罗哌卡因0.3 mL/kg)+静脉注射羟考酮0.1 mg/kg、氟比洛芬酯1 mg/kg和地塞米松0.2 mg/kg。主要结局指标为术后24 h 15项恢复质量量表(quality of requirements⁃15,QoR⁃15)评分,次要结局指标为术后48 h QoR⁃15评分,术后不同时间点静息时与运动时疼痛数字评定量表(numerical rating scale,NRS)评分和Bruggemann舒适量表(Bruggrmann comfort scale,BCS)评分,术后首次补救镇痛时间,首次下床活动时间,首次排气时间及术后48 h内不良反应发生率。结果最终入选符合纳入与排除标准的行开腹胃造瘘术终末期头颈部癌症患者46例,其中多模式镇痛组、局麻组均为23例。两组术前QoR⁃15评分差异无统计学意义(P>0.05),多模式镇痛组术后24 h[(81.77±8.91)分比(71.46±7.61)分,P0.05)。结论术中多模式镇痛可减轻开腹胃造瘘术患者术后早期疼痛,提高舒适度,缩短术后下床活动时间和排气时间,继而提升术后早期恢复质量。

关键词：多模式镇痛开腹胃造瘘术恢复质量加速术后康复

多模式镇痛在终末期头颈部癌症患者开腹胃造瘘手术中的有效性和安全性

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中华医学杂志 2024年第25期104卷 2323-2329页

作者：胡春华陈一萌吴黎黎陈红芽袁爽王古岩首都医科大学附属北京同仁医院麻醉科北京

目的评估多模式镇痛在终末期头颈部癌症患者开腹胃造瘘手术中的有效性和安全性。方法随机对照试验。前瞻性选择2023年6至12月首都医科大学附属北京同仁医院择期行开腹胃造瘘手术的终末期头颈部癌症患者50例, 根据不同麻醉方式, 采用随... 详细信息

目的评估多模式镇痛在终末期头颈部癌症患者开腹胃造瘘手术中的有效性和安全性。方法随机对照试验。前瞻性选择2023年6至12月首都医科大学附属北京同仁医院择期行开腹胃造瘘手术的终末期头颈部癌症患者50例, 根据不同麻醉方式, 采用随机数字表法分为多模式镇痛组和局部麻醉组, 每组 25 例。多模式镇痛组采用超声引导下腹壁神经阻滞(腹直肌鞘阻滞和腹横肌平面阻滞)+静脉注射羟考酮+静脉注射氟比洛芬酯和地塞米松;局部麻醉组采用罗哌卡因局部浸润麻醉。主要观察指标为两组患者术中疼痛数字等级量表(NRS)评分>3分的发生率。次要观察指标包括术中各时间点[麻醉前(T0)、切皮时(T1)、手术开始后10 min(T2)、牵拉胃体时(T3)和手术结束时(T4)]NRS评分、血流动力学情况[平均动脉压(MAP)和心率(HR)]、不良反应发生率、术后患者满意度评分及术后24 h内静息及活动状态(咳嗽时)的NRS评分。结果多模式镇痛组男21例, 女4例, 年龄(61.4±9.9)岁;局部麻醉组男19例, 女6例, 年龄(58.6±10.8)岁。多模式镇痛组患者术中NRS评分>3分的发生率以及补救镇痛发生率均为12.0%(3/25), 均低于局部麻醉组的60.0%(15/25), 差异均有统计学意义(均P<0.001);多模式镇痛组T3时刻的NRS评分[M(Q1, Q3)]为2(2, 3)分, 低于局部麻醉组的5(3, 6)分(P<0.05)。多模式镇痛组术中MAP和HR的变异性均低于局部麻醉组(均P<0.05)。多模式镇痛组患者术中心动过速、手术牵拉反应和恶心发生率均低于局部麻醉组(均P<0.05)。多模式镇痛组患者术后满意度评分为(9.25±0.71)分, 高于局部麻醉组的(7.33±0.87)分(P<0.001)。多模式镇痛组患者术后24 h内活动状态(咳嗽时)NRS评分为(2.36±0.75)分, 低于局部麻醉组的(3.03±0.81)分(P=0.005)。两组患者术后均无尿潴留、恶心、呕吐、头晕等不良反应发生。结论与局部麻醉相比, 多模式镇痛策略在终末期头颈部癌症患者开腹胃造瘘手术中可提供更好的镇痛效果和持续时间, 血流动力学更稳定, 术中不良反应更少。

关键词：麻醉和镇痛终末期头颈部癌症开腹胃造瘘多模式镇痛腹壁神经阻滞

Phenotyping of poplar seedling leaves based on a 3D visualization method

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International Journal of Agricultural and Biological Engineering 2018年第6期11卷 145-151页

作者： chunhua hu Pingping Li Zhou Pan School of Information Science and Technology Nanjing Forestry UniversityNanjing 210037China School of Biology and Environment Nanjing Forestry UniversityNanjing 210037China

In plant research,there is a demand for non-destructive and non-invasive trait measurement methods for phenotyping that can be used to accurately analyze various aspects of plants,such as stem length,leaf area,and leaf *** this study,a method for measuring the leaf geometric characteristics of poplar seedlings based on 3D visualization via the use of time-of-flight(ToF)and digital cameras was ***,the average distance density function method was applied to process outliers of ***,to improve the accuracy of data fitting,a specific method using the angle of adjacent two-point normal vectors was introduced to filter redundant data,kept essential sample values as the control points,and then used the control points to fit the leaf surface based on non-uniform rational B-splines(NURBS).At the same time,NURBS was used to fit the trunk according to its control points and an iterative method to fit the other ***,3D visualization of poplar seedlings was achieved,and leaf traits,including leaf width,leaf length,leaf area,and leaf inclination angle,were *** obtain accurate results,multiple experiments were conducted including assessments of poplar seedlings exhibiting normal growth and those grown under water *** results of the proposed method were compared with the real values of the *** RMSE for leaf width,leaf length,leaf area,and leaf angle were 0.18 cm,0.21 cm,1.14 cm^(2),and 1.97°,*** results proved that this approach could be used to accurately measure the leaf characteristics of poplar seedlings via visualization.

关键词： NURBS poplar seedling 3D visualization leaf geometrical characteristics