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Journal of Materials Science & Technology 2023年第22期153卷 254-262页

作者： guanghui Feng Xiyuan Yao yulan yu Hejun Li State Key Laboratory of Solidification Processing Shaanxi Key Laboratory of Fiber Reinforced Light Composite MaterialsNorthwestern Polytechnical UniversityXi’an 710072China

Carbon/carbon(C/C)composites have been acknowledged as potential candidates in aerospace vehicles,but their oxygen sensitivity still remains an enormous *** this work,a novel multilayer coating consisted of HfC-2.5 mol.%Hf_(6)Ta_(2)O_(17),HfC-40 mol.%SiC,HfC-2.5 mol.%Hf_(6)Ta_(2)O_(17) and HfC-60 mol.%SiC sublayers from surface to inside was designed and fabricated on the surface of C/C composites with sharp leading edge by plasma *** ablation resistance was assessed using oxyacetylene torch with a maximum temperature over 2300℃ and compared with monolayered *** multilayer coating revealed preferable ablation retardation capacity evidenced by its integrated profile and less flaw *** benefits were primarily stemmed from the effective structural design and rational material *** former was able to reduce the thermal stress within the ablated scale,the latter contributed to rising the high-temperature resistance and oxygen barrier ability of the coating.

关键词： Multilayer design Ablation resistance Plasma spraying Sharp leading edge C/C composites

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Mirador铜矿低碱度铜硫分离试验研究

现代矿业 2023年第3期39卷 168-170,174页

作者：李世男鱼光辉代献仁李冬中铁建铜冠投资有限公司

为解决Mirador铜矿尾矿外排水pH值较高的技术难题,在工艺矿物学研究的基础上,以ML-1和石灰作为铜、硫分离作业的组合抑制剂进行了试验研究。试验结果表明:在pH值11.0的条件下,当ML-1用量为200 g/t时,实现了铜硫分离,闭路试验获得的铜精... 详细信息

为解决Mirador铜矿尾矿外排水pH值较高的技术难题,在工艺矿物学研究的基础上,以ML-1和石灰作为铜、硫分离作业的组合抑制剂进行了试验研究。试验结果表明:在pH值11.0的条件下,当ML-1用量为200 g/t时,实现了铜硫分离,闭路试验获得的铜精矿含铜26.52%、铜回收率89.01%,闭路试验结果为Mirador铜矿低碱度铜、硫分离提供了技术依据。

关键词：硫化铜矿铜硫分离低碱度抑制剂

GABA is involved in the regulation of Nicotiana tabacum pollen tube growth

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GABA is involved in the regulation of Nicotiana tabacum poll...

不同降压药物联合治疗对老年高血压患者血压变异性的影响分析

中国细胞生物学学会2005年学术大会、青年学术研讨会

作者： guanghui yu, Mengxiang Sun Key Laboratory of MOE for Plant Developmental Biology, College of Life Sciences, Wuhan University, Wuhan 430072

γ-amino-butyrate acid (GABA) is a four-carbon nonprotein amino acid. It is ubiquitous in all the organisms, from prokaryotes to eukaryotes. To elucidate its role in pollen tube growth, exogenous GABA and its analogs (Baclofen and 3-MPA) were used in our experiment. Our results showed that the exogenous GABA can promote the growth of Nicotiana tabacum pollen tubes at the optimum concentration. The biphasic role of exogenous GABA on the promotion of pollen tubes is reminiscent of role of plant hormone. To explore whether the enhancement role of exogenous GABA on the pollen tubes is via the GABA receptors or not, the animal GABAb receptors agonist Baclofen was used in the experiment. 5×10-4mol/L Baclofen markedly enhance the growth of tobacco pollen tubes after 9h cultivation . The combining effect of exogenous GABA and Baclofen on the growth of pollen tubes was also observed. It is tempted to speculate that the promotion role of exogenous GABA on the pollen tube growth is via the GABAB receptor, though the corresponding gene has not been cloned in the plants. 3-Mercaptopropionic acid (3-MPA) is another analog of GABA. It is a competitive, relatively specific inhibitor of glutamate decarboxylase (GAD, EC 4.***.1.15). The enzyme catalyzes the formation of endogenous GABA from glutamate. In the pollen germination medium supplement with 5×10-4 mol/L MPA, pollen tubes growth was obviously inhibited, but the inhibition could be relieved by 10-3 mol/L exogenous GABA. Our data showed that the endogenous GABA production is crucial to the pollen tube growth and the process is regulated by exogenous and endogenous GABA via different signal pathways. Futhermore, the GABA receptors on the membrane of pollen tubes were primary indicated by the semiconductor quantum dots (QDs) tagged ligands.

关键词： GABA is involved in the regulation of Nicotiana tabacum pollen tube growth

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当代医学 2018年第24期24卷 114-116页

作者：郁光辉江苏省南通市通州区二甲人民医院内科江苏南通226300

目的研究探讨不同降压药物联合治疗对老年高血压患者血压变异性的影响。方法选择2016年1月~2018年1月本院老年高血压患者60例进行研究讨论,把所有患者随机分为治疗组和对照组,每组30例,治疗组采用氨氯地平和缬沙坦进行治疗,对照组采取... 详细信息

目的研究探讨不同降压药物联合治疗对老年高血压患者血压变异性的影响。方法选择2016年1月~2018年1月本院老年高血压患者60例进行研究讨论,把所有患者随机分为治疗组和对照组,每组30例,治疗组采用氨氯地平和缬沙坦进行治疗,对照组采取氢氯噻嗪和缬沙坦进行治疗,观察两组患者的血压变异性。结果治疗组采取缬沙坦和氨氯地平进行治疗,患者的血压变异性下降比对照组的要好,两组比较,差异有统计学意义(P<0.05)。结论对于老年高血压的患者,采取缬沙坦和氨氯地平进行治疗,可以降低患者血压变异性,同时患者降压效果显著,值得在今后患者的治疗过程中应用。

关键词：降压药物老年高血压血压变异性影响

热淋清颗粒联合氨苄西林治疗急性泌尿系统感染的疗效观察

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现代药物与临床 2024年第1期39卷 209-212页

作者：李文敏郑勇军胡光辉俞家顺上海市浦东新区浦南医院泌尿外科上海200125 上海交通大学医学院附属仁济医院泌尿外科上海200001

目的探讨热淋清颗粒联合氨苄西林胶囊治疗急性泌尿系统感染的临床效果。方法选取2020年1月—2022年10月上海市浦东新区浦南医院收治的急性泌尿系统感染患者共106例,依据药物治疗方案的差异将其分为对照组(53例)和治疗组(53例)。对照... 详细信息

目的探讨热淋清颗粒联合氨苄西林胶囊治疗急性泌尿系统感染的临床效果。方法选取2020年1月—2022年10月上海市浦东新区浦南医院收治的急性泌尿系统感染患者共106例,依据药物治疗方案的差异将其分为对照组(53例)和治疗组(53例)。对照组患者口服氨苄西林胶囊,3粒/次,3次/d。治疗组在对照组治疗基础上冲服热淋清颗粒,2袋/次,3次/d。两组持续治疗2周。比较两组的总有效率、临床症状改善情况、尿液细菌学指标。结果治疗后,治疗组的总有效率(96.23%)较对照组(81.13%)明显升高(P<0.05)。治疗后,治疗组体温恢复时间、尿常规恢复时间、尿路刺激征消失时间短于对照组(P<0.05)。治疗后,两组患者尿细菌计数、尿中白细胞计数均明显降低(P<0.05),且治疗组上述指标明显好于对照组(P<0.05)。结论热淋清颗粒联合氨苄西林胶囊治疗急性泌尿系统感染疗效良好,可缩短患者临床症状持续时间,改善患者尿液细菌学指标。

关键词：热淋清颗粒氨苄西林胶囊急性泌尿系统感染尿常规恢复时间尿路刺激征消失时间尿中白细胞计数

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文化相对论思想下的通识教育思考

贵州民族大学学报（哲学社会科学版） 2014年第4期 189-192页

作者：余光会贵州民族大学传媒学院贵州贵阳550025

博厄斯文化相对论认为每个文化都有自己独一无二的历史,并有其独创性和充分价值,以此思想为基础,文章首先论证了通识教育思想与文化相对论对民族文化、个体发展方面关注的共同性。作者提出目前中国通识教育的发展还应关注多民族文化在... 详细信息

博厄斯文化相对论认为每个文化都有自己独一无二的历史,并有其独创性和充分价值,以此思想为基础,文章首先论证了通识教育思想与文化相对论对民族文化、个体发展方面关注的共同性。作者提出目前中国通识教育的发展还应关注多民族文化在普通大学的教育、弥补宗教文化教育之不足和进行保持民族文化传统教育以及科学教育的观点。

关键词：文化相对论通识教育教育启示

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基于工艺优化的工位节拍降低方法研究

汽车工艺与材料 2023年第3期 19-23页

作者：于光辉郭东栋牛振姚森北京奔驰汽车有限公司北京100176 北京大学北京100871

为解决焊装车间产能不足的问题,通过对生产线产能瓶颈区域进行分析研究,根据不同工位所具有的特点使用工艺再平衡和工艺顺序优化2种方法降低工位节拍,实施过程中使用影像动作分析法对每个工位进行动作分解,使每一部分的细微步骤都能展... 详细信息

为解决焊装车间产能不足的问题,通过对生产线产能瓶颈区域进行分析研究,根据不同工位所具有的特点使用工艺再平衡和工艺顺序优化2种方法降低工位节拍,实施过程中使用影像动作分析法对每个工位进行动作分解,使每一部分的细微步骤都能展现出来,同时过程中借助ECRS原则对优化点进行改进优化,最终成功对2个点焊工位实施节拍优化,优化后有效解决了生产线产能不足的问题。在对点焊技术的优化中没有进行参数调整从而降低了质量风险,也为其他类似技术工位节拍优化提供了另一条途径。

关键词：节拍工艺再平衡工艺顺序 ECRS原则生产线平衡

Response mechanism study of alternate ZrC-10vol.%SiC/ZrC-70vol.%SiC coatings with various sublayer thicknesses for cyclic and long-term thermal exposure

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Journal of Materials Science & Technology 2023年第9期140卷 153-162页

To explore the influence of sublayer numbers on the structure evolution and thermal stress level,an alternate coating consisting of ZrC-10 vol.%SiC and ZrC-70 vol.%SiC sublayers was designed in this *** a basically consistent general thickness,three coatings constituted by 2,4 and 6 sublayers were prepared by plasma spraying,which then were assessed using an oxyacetylene torch under cyclic and long-term *** coating with 6 sublayers was supposed to be the one with the best ablation property,finite element analysis also evidenced its least thermal stress among all these *** being ablated for 240 s,the linear and mass ablation rates of the coating with 6 sublayers decreased by 51.27%and 14.41%as compared to that with 4 ***-test analysis proved the existence of Si-based products,which help the outmost surface to develop a dense ***,the yielded alternate dense/porous scale had a preferable toughness,allowing it to maintain a good integrity.

关键词： Alternate coating Sublayer numbers Carbon/carbon composites High-temperature test Plasma spraying

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市政施工中地下管线施工技术探讨

科技与创新 2014年第14期 65-65,67页

作者：俞光辉浙江大禹建设有限公司浙江金华321017

随着城市化速度的加快,城市地下管线等担负着城市基本功能和效应的公共设施在城市建设中的作用越来越重要。在当前的施工条件和施工技术下,探讨如何高效、快速地推进地下管线的建设,加强地下管线的施工效率,对于市政建设的总体格局具有... 详细信息

随着城市化速度的加快,城市地下管线等担负着城市基本功能和效应的公共设施在城市建设中的作用越来越重要。在当前的施工条件和施工技术下,探讨如何高效、快速地推进地下管线的建设,加强地下管线的施工效率,对于市政建设的总体格局具有积极意义。

关键词：市政施工管线技术地下管线基础设施

A chattering free consensus controller for multiple Lur'e systems with a non-autonomous leader and directed switching topology

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Science China(Technological Sciences) 2023年第4期66卷 1110-1118页

作者： WANG PeiJun yu WenWu WEN guanghui yu XingHuo HUANG TingWen School of Mathematics and Statistics Anhui Normal UniversityWuhu 241000China Anhui Province Engineering Laboratory of Intelligent Robot's Information Fusion and Control Anhui Normal UniversityWuhu 241000China School of Mathematics Frontiers Science Center for Mobile Information Communication and SecuritySoutheast UniversityNanjing 210096China Purple Mountain Laboratories Nanjing 21111lChina Department of Electrical Engineering Nantong UniversityNantong 226019China Department of Systems Science School of MathematicsSoutheast UniversityNanjing 210096China School of Engineering RMIT UniversityMelbourne VIC 3001Australia Science Program Texas A&M University at QatarDoha 23874Qatar

Achieving asymptotical cooperative goal for multi-agent systems(MASs)with non-autonomous leaders(i.e.,leaders with nonzero inputs)is a critical but challenging *** approach is to use discontinuous controllers which may cause chattering phenomenon in practical *** to achieve the asymptotical goal via a chattering free cooperative controller remains to be open so *** this paper,an adaptive continuous controller is designed to achieve zero error consensus tracking in multiple Lur’e systems with a non-autonomous leader under directed switching ***,an unknown input observer(UIO)based on relative outputs is given to estimate the relative full *** an adaptive continuous controller is designed by introducing a decay function which remains positive into the term that plays the role of eliminating the impacts of leader’s nonzero ***,by using multiple Lyapunov functions(MLFs)technique,it is proven that zero error consensus tracking can be achieved if the average dwell time(ADT)is greater than a positive ***,theoretical result is verified by performing simulations on Chua’s *** with existing work,the proposed controller can not only achieve asymptotical consensus,but also is chattering free.

关键词： multi-agent system consensus chattering free non-autonomous leader directed switching topology