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Formation mechanism of bright and dark concentric-ring pattern in dielectric barrier discharge

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Plasma science and Technology 2024年第8期26卷 50-57页

作者：李彩霞冯建宇王舒畅李骋冉俊霞潘宇扬董丽芳 College of Electronic Information Engineering Hebei UniversityBaoding 071002People’s Republic of China College of Physics science and Technology Hebei UniversityBaoding 071002People’s Republic of China school of Energy and Environmental Engineering Hebei University of TechnologyTianjin 300401People’s Republic of China College of Quality and Technical supervision Hebei UniversityBaoding 071002People’s Republic of China

In this work,a bright and dark concentric-ring pattern is reported in a dielectric barrier discharge for the first *** spatiotemporal dynamics of the bright and dark concentric-ring pattern are investigated with an intensified charge-coupled device and photomultiplier *** results indicate that the bright and dark concentric-ring pattern is composed of three concentric-ring *** are bright concentric-ring structures,dark concentric-ring structures and wider concentric-ring structures,*** bright concentric-ring structures and dark concentricring structures are alternately *** bright concentric-ring structures are located at the centre of the wider concentric-ring *** wider concentric-ring structures first form from the outer edge and gradually develop to the *** essence of all three concentric-ring structures is the individual discharge *** optical emission spectra of different sublattices are acquired and *** is found that the plasma parameters of the three concentricring sublattices are ***,the formation mechanism of the bright and dark concentricring pattern is discussed.

关键词： dielectric barrier discharge(DbD) concentric-ring pattern spatio-temporal dynamics optical emission spectroscopy wall charges

Nano-phase transformation of composite precipitates in multicomponent Al-Mg-si(-sc)alloys

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Journal of Materials science & Technology 2022年第15期110卷 216-226页

作者： s.b.Wang C.F.pan b.Wei X.Zheng Y.X.Lai J.H.Chen Key Laboratory of LCR Materials and Devices of Yunnan Province National Center for International Research on Photoelectric and Energy MaterialsSchool of Materials and EnergyYunnan UniversityKunming 650091China Collaborative Innovation Center of Renewable Energy Materials and Department of Physics Guangxi UniversityNanning 530004China Center for High-Resolution Electron Microscopy College of Materials Science and EngineeringHunan UniversityChangsha 410082China

sc-addition can significantly enhance the performance of the micro-alloyed Al-Mg-si-sc ***,the mechanisms by which the sc element modifies the microstructure of the alloys are still unknown in many ***,using atomic-scale transmission electron microscopy and atomic-resolution spectroscopy,we have revealed the microstructural differences between two age-hardened Al-0.5Mg-0.4si(wt.%)alloys with and without *** first significant effect of sc-addition on the precipitation microstructure of the Al-Mg-si-sc alloy is that sc-atoms may distribute at theβ"-precipitate/Al-matrix interface and therefore accelerate aging kinetics at the initial stage of *** second significant effect of sc-addition is that in the transition from theβ"-hardened peak-age stage to theβ′-hardened late stage,sc-atoms can greatly improve the stability of transitionalβ"/b'/β′composite precipitates by entering the b'-substructures and/or locating at the precipitate/Al *** such sc-atoms effectively suppressβ"toβ'transformation and cross-sectional coarsening of bothβ"and composite precipitates,leading to much finer precipitate needles with smaller diameter but much larger length,as compared with those precipitate needles formed in the alloy without ***,the alloy with sc-addition exhibits a much better thermal stability than that without sc.

关键词： Al alloy strengthening mechanism Phase transition Transmission electron microscopy

Nano-se and GsH Combined Foliar Application Enhances Cucumber Resistance to botrytis cinerea by Promoting Cucurbitacin biosynthesis through JA signal Transfer Activation

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Nano-Se and GSH Combined Foliar Application Enhances Cucumbe...

基于NCGA的汽车外饰件注塑成型工艺参数多目标优化

中国植物病理学会2024年学术年会

作者： JIA Yujiao CHEN Lanqi KANG Lu FU Xiaorui ZHENG shuyang WANG Ping pan Canping Innovation Center of Pesticide Research Department of Applied ChemistryCollege of ScienceChina Agricultural University

To elucidate the effect of Nano-se and GsH(seG) exogenous bio-enhancement on cucumber's resistance to botrytis cinerea(***) infection,we conducted an in-depth study to explore its mec^*** analysis encompassed transcriptome and metabolome analysis,detection of antioxidant enzyme activity,staining studies,and illness index *** results indicate that leaf application of seG significantly enhances cucumber growth,increases photosynthetic pigment levels and capacity,and reduces the incidence rate by 41.9% after *** linolenic acid metabolicpathway triggered by seG activates genes associated with Jasmonic acid(JA),including LOX(210%),LOX4(430%),AOs1(100%),and AOC2(120%).With strengthened JA signal transduction,the expression of cucurbitacin synthesis-related genes OsC(107.5%),P450(440.8%,31.6%),and ACT(414.0%) is activated,thereby promoting the accumulation of cucurbitacin.L-phenylalanine(67.5%),P-coumaric acid(144.8%),sinapic acid(49.0%),and ferulic acid(8.4%) were among the other lignin precursors *** activities of APX(81.7%),MDHAR(43.4%),and GsH-Px(60.5%),essential antioxidant enzymes in the AsA-GsH cycle,display varying degrees of *** summary,seG bio-enhancement activates the AsA-GsH cycle,boosts the activity of antioxidant enzymes,enhances JA signal transduction,facilitates the accumulation of cucurbit and lignin precursor compounds,thereby enhancing cucumber's resistance to ***.

关键词： Nano-se GsH Induced resistance Jasmonic acid Cucurbitacin b.cinerea

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塑料工业 2024年第8期52卷 95-100,164页

作者：印磊苏小平潘杰南京工业大学机械与动力工程学院江苏南京211800

针对汽车外饰薄壁零件生产中的多个工艺目标优化难题,本文以汽车b柱外饰件为分析对象进行研究。通过Moldflow软件建立零件仿真模型,并进行最优拉丁超立方试验采样数据,利用Kringing方法建立代理模型,以翘曲变形量和体积收缩率为注塑工... 详细信息

针对汽车外饰薄壁零件生产中的多个工艺目标优化难题,本文以汽车b柱外饰件为分析对象进行研究。通过Moldflow软件建立零件仿真模型,并进行最优拉丁超立方试验采样数据,利用Kringing方法建立代理模型,以翘曲变形量和体积收缩率为注塑工艺的多个优化目标,通过邻域培植遗传算法(NCGA)对所建代理模型进行参数优化,并获得平衡了翘曲变形量和体积收缩率这2个目标的最优工艺参数组合:模具温度44.43℃,熔体温度205.36℃,注射时间1.99 s,保压压力38.71 MPa,保压时间27.47 s。与原有工艺参数相比,翘曲变形量降低了18.56%,体积收缩率降低了50.94%,注塑件质量得到显著提高。

关键词：薄壁零件 Moldflow软件最优拉丁超立方试验 Kringing模型邻域培植遗传算法参数优化

Current recommendations of managing HbV infection in preconception or pregnancy

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Frontiers of Medicine 2014年第2期8卷 158-165页

作者： James s. Park Calvin pan Division of Gastroenterology Department of Medicine NYU Langone Medical Center NYU School of Medicine New York 10016 USA

Hepatitis b remains a leading cause of cirrhosis, hepatocellular carcinoma and liver transplantation worldwide. Management of chronic hepatitis b during pregnancy is challenging. Transmission of hepatitis b to infants still occurs perinataily although immunoprophylaxis is widely available for infants born to mothers with chronic hepatitis b infection. The emerging data suggest that initiation of antiviral therapy in the beginning of the third trimester in highly viremic mothers can prevent immunoprophylaxis failure in their infants. The available drug safety data show that lamivudine, telbivudine and tenofovir are generally safe to be used during the pregnancy. In order to minimize the fetal exposure to the antiviral medication, antiviral therapy during the pregnancy should be limited to a selected group of patients with cirrhosis, high hepatitis b viral load, or prior history immunoprophylaxis failure. An elective Caesarean section may reduce the risk of perinatal transmission. For those females planning for pregnancy or in early stage of pregnancy, communication and follow-up among obstetrician, gastroenterologist, and primary care physician are important. In this article, we will review the features of hepatitis b infection before, during and after the pregnancy; the risk factors that increase mother-tochild transmission; safety data on antiviral drug use during pregnancy; and the potential role of Caesarean section in selected cases.

关键词： antiviral therapy Caesarean section cirrhosis hepatitis b irnmunoprophylaxis mother-to-child transmission pregnancy prevention

基于1+X证书制度的中职课程设计路径——以《数控车铣加工》课程为例

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模具制造 2024年第5期24卷 64-66,70页

作者：潘勇江苏省溧阳中等专业学校江苏溧阳213300

1+X证书制度是衔接职业教育与企业工作岗位的桥梁,推动课程内容与企业工作任务融通,教学标准与岗位标准融合,教学过程与工作过程对接,促进中职学校教师、教材、教法改革,对提升学生综合职业能力有深远的意义和影响。以数控技术应用专业... 详细信息

1+X证书制度是衔接职业教育与企业工作岗位的桥梁,推动课程内容与企业工作任务融通,教学标准与岗位标准融合,教学过程与工作过程对接,促进中职学校教师、教材、教法改革,对提升学生综合职业能力有深远的意义和影响。以数控技术应用专业为例,分析1+X证书制度对《数控车铣加工》课程设计,完善“岗课赛证”综合育人机制,培养适应时代发展的高技能专业人才。

关键词： 1+X证书数控车铣加工岗课赛证

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冷链物流运输对低盐腌制鲟鱼品质的影响

中国调味品 2024年第6期49卷 147-151页

作者：潘捷张振华桂林信息科技学院广西桂林541004

鲟鱼富含多种营养物质,包括蛋白质、不饱和脂肪酸、矿物质成分、维生素和胶原蛋白,深受消费者喜爱。然而,我国的冷链技术相对于发达国家仍较落后,每年均有食品由于冷链运输保存技术不善而损坏,造成大量经济损失。为了保障冷链运输过程... 详细信息

鲟鱼富含多种营养物质,包括蛋白质、不饱和脂肪酸、矿物质成分、维生素和胶原蛋白,深受消费者喜爱。然而,我国的冷链技术相对于发达国家仍较落后,每年均有食品由于冷链运输保存技术不善而损坏,造成大量经济损失。为了保障冷链运输过程中腌制鲟鱼的品质,该研究对比了3种不同冷链运输方式(运输方式A:全程冷链运输;运输方式b:全程断链运输;运输方式C:一半的路程断链运输)下腌制鲟鱼的品质,并分析了断链运输对低盐腌制鲟鱼的硫代巴比妥酸反应物(TbARs)值、挥发性盐基氮(TVb-N)值、菌落总数、pH值和色差的影响。研究结果表明,随着冷藏运输时间的增加,低盐腌制鲟鱼中菌落总数不断增加,并且当冷链物流运输过程中断链运输次数逐渐增加时,低盐腌制鲟鱼的品质下降更明显,采用运输方式A的低盐腌制鲟鱼的品质明显高于运输方式b和C。

关键词：低盐腌制鲟鱼冷链运输品质变化断链

sTAT3-Dependent Effects of Polymeric Immunoglobulin Receptor in Regulating Interleukin-17 signaling and Preventing Autoimmune Hepatitis

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Engineering 2024年第5期36卷 209-222页

作者： Ting Li Tongtong pan Nannan Zheng Xiong Ma Xiaodong Wang Fang Yan Huimian Jiang Yuxin Wang Hongwei Lin Jing Lin Huadong Zhang Jia Huang Lingming Kong Anmin Huang Qingxiu Liu Yongping Chen Dazhi Chen Hepatology Diagnosis and Treatment Center The First Affiliated Hospital of Wenzhou Medical University&Zhejiang Provincial Key Laboratory for Accurate Diagnosis and Treatment of Chronic Liver DiseasesWenzhou 325035China Department of Clinical Medicine Hangzhou Medical CollegeHangzhou 310053China state Key Laboratory for Oncogenes and Related Genes Renji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai 200001China Wenzhou Medical University Wenzhou 325035China Division of Infectious Diseases Lishui People’s HospitalLishui 323000China

One-third of patients with autoimmune hepatitis(AIH)have cirrhosis at the time of *** relevance of these variables,although unknown,is believed to be critical in AIH because of suspected interactions between the gut microbiome and genetic *** of the gut flora and elevated polymeric immunoglobulin receptor(pIgR)levels have been observed in both patients and mouse ***,there is a direct relationship between pIgR expression and transaminase levels in patients with *** this study,we aimed to explore how pIgR influences the secretion of regenerating islet-derived 3 beta(Reg3b)and the flora composition in AIH using in vivo experiments involving patients with AIH and a concanavalin A-induced mouse model of ***3b expression was reduced in pIgR gene(Pigr)-knockout mice compared to that in wild-type mice,leading to increased microbiota ***,exogenous pIgR supplementation increased Reg3b expression and maintained microbiota *** sequencing revealed the participation of the interleukin(IL)-17 signaling pathway in the regulation of Reg3b through ***,the introduction of external pIgR could not restore the imbalance in gut microbiota in AIH,and the decrease in Reg3b expression was not apparent following the inhibition of signal transducer and activator of transcription 3(sTAT3).In this study,pIgR facilitated the upregulation of Reg3b via the sTAT3 pathway,which plays a crucial role in preserving the balance of the intestinal microbiota in *** this research,we discovered new molecular targets that can be used for the diagnosis and treatment of AIH.

关键词： Autoimmune hepatitis Polymeric immunoglobulin receptor Regenerating islet-derived 3 beta Intestinal microbiota signal transducer and activator of transcription 3

Pijx confers broad-spectrum seedling and panicle blast resistance by promoting the degradation of ATP b subunit and OsRbohC-mediated ROs burst in rice

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Molecular Plant 2024年第4期17卷 672-675页

作者： Ning Xiao Yunyu Wu Xiaoxiang Zhang Zeyun Hao Zichun Chen Zefeng Yang Yue Cai Ruyi Wang Ling Yu Zhiping Wang Yue Lu Wei shi Cunhong pan Yuhong Li Changhai Zhou Jianju Liu Niansheng Huang Guangqing Liu Hongjuan Ji shuhao Zhu shuai Fang Yuese Ning Aihong Li 不详

(Molecular Plant 16,1832-1846,November 62023)The originally published version of this manuscript contained several small mistakes in the labels and legends of main and supplemental figures,along with a few small mistakes in the main text,that have now been ***,in Figure 6G,the label“NILGY31^(Pijx)”has been corrected to“NIL^(Pijx)”,and in the legend of Figure 6H,“PPL^(Pijx Piz-t)”and“PPL^(Pijx Pigm)”have been corrected to“NIL^(Piz-t Pijx)”and“PPL^(Pigm Pijx).”In Figure s8A。

关键词： seedling Figure panicle