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Elaborating strengthen mechanism of Pt-Ir solid solution superalloy at finite temperature

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Rare Metals 2024年第3期43卷 1243-1256页

作者： Wei Yu Xiao-Yu Chong Yun-Xuan Zhou Meng-Di Gan Ying-Xue Liang Yan Wei Ai-Min Zhang Chang-Yi Hu xing-Yu gao Li Chen Hai-Feng Song Jing Feng Faculty of Materials Science and Engineering Kunming University of Science and TechnologyKunming650093China Yunnan Precious Metals Laboratory Co.LTD Kunming650106China Laboratory of Computational Physics Institute of Applied Physics and Computational MathematicsBeijing100088China

Pt-Ir alloy is potential superalloys used above 1300℃because of their high strength and creep ***,the ductility of Pt-Ir alloy has rapidly deteriorated with the increase of Ir,resulting in poor *** work quantitatively evaluated the solid solution strengthening(SSS)and grain refinement strengthening(GRS)of Pt-Ir alloy using first-principles calculations combined with experimental ***,the stretching force constants in the second nearest neighbor region(SFC^(2nd))of pure Ir(193.7 eV·nm^(-2))are 3.40 times that of pure Pt(57.0 eV·nm^(-2)),i.e.,the interatomic interaction is greatly enhanced with the increase of Ir content,which leads to the decrease of ductility,and modulus misfit plays a dominant role in ***,the physical mechanisms responsible for the hardness(H_(V))of Pt-Ir alloy,using the power-law-scaled function of electron work function coupled SSS and GRS,are attributed to the electron redistribution caused by different Ir ***,a thorough assessment of the thermodynamic characteristics of Pt-Ir binary alloy was conducted,culminating in development of a mapping model that effectively relates enmposition,temperature and *** results revealed that the compressive strength incrcases with the Ir content,and the highest strength was observed in Pt_(0.25)Ir_(0.75).This study provides valuable insights into the Pt-Ir alloy system.

关键词： Elastic properties Phonon Solid solution strengthen Force constants CALPHAD

Increased long-distance and homo-trans interactions related to H3K27me3 in Arabidopsis hybrids

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Journal of Integrative Plant Biology 2024年第2期66卷 208-227页

作者： Zhaoxu gao Yanning Su Le Chang Guanzhong Jiao Yang Ou Mei Yang Chao Xu Pengtao Liu Zejia Wang Zewen Qi Wenwen Liu Linhua Sun Guangming He xing Wang Deng Hang He School of Advanced Agriculture Sciences and School of Life Sciences State Key Laboratory of Protein and Plant Gene ResearchPeking UniversityBeijing 100871China College of Grassland Science Beijing Forestry UniversityBeijing 100083China Peking University Institute of Advanced Agricultural Sciences Shandong Laboratory of Advanced Agricultural Sciences in WeifangWeifang 261325China

In plants,the genome structure of hybrids changes compared with their parents,but the effects of these changes in hybrids remain *** reciprocal crosses between Col×C24 and C24×Col in Arabidopsis using high-throughput chromosome conformation capture assay(Hi-C)analysis,we found that hybrid three-dimensional(3D)chromatin organization had more long-distance interactions relative to parents,and this was mainly located in promoter regions and enriched in genes with heterosis-related *** interactions between euchromatin and heterochromatin were increased,and the compartment strength decreased in *** compartment domain(CD)boundaries,the distal interactions were more in hybrids than their *** the hybrids of CURLY LEAF(clf)mutants clfCol×clfC24and clfC24×clfCol,the heterosis phenotype was damaged,and the long-distance interactions in hybrids were fewer than in their parents with lower ***-seq data revealed higher levels of H3K27me3 in the region adjacent to the CD boundary and the same interactional homo-trans sites in the wild-type(WT)hybrids,which may have led to more long-distance *** addition,the differentially expressed genes(DEGs)located in the boundaries of CDs and loop regions changed obviously in WT,and the functional enrichment for DEGs was different between WT and clf in the longdistance interactions and loop *** findings may therefore propose a new epigenetic explanation of heterosis in the Arabidopsis hybrids and provide new insights into crop breeding and yield increase.

关键词： 3D chromatin organization H3K27me3 homo-trans hybrids long-distanceinteractions

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黄骅坳陷港中油田滩坝砂单一坝精细解剖

矿物岩石 2014年第3期34卷 89-97页

作者：吴小斌侯加根王大兴滑双君李树庆吴辉高星星延安大学能源与环境工程学院陕西延安716000 中国石油大学(北京)地球科学院北京昌平102249 大港油田采油二厂天津大港300280 大港油田地质勘探开发研究院天津大港300280 大港油田采油一厂天津大港300280

湖泊相滩坝砂体是我国大港油田沙河街组一种重要的储集层类型。为了揭示港中油田沙一段滩坝砂坝砂内部砂体叠置规律,本文以储层构型理论为指导,以沉积、露头、钻井岩心资料为基础,系统总结出滩坝砂单一坝内6种3级界面识别方法和垂向6种... 详细信息

湖泊相滩坝砂体是我国大港油田沙河街组一种重要的储集层类型。为了揭示港中油田沙一段滩坝砂坝砂内部砂体叠置规律,本文以储层构型理论为指导,以沉积、露头、钻井岩心资料为基础,系统总结出滩坝砂单一坝内6种3级界面识别方法和垂向6种组合特征和平面上4种识别标志,取得了单一坝新认识。研究认为单一坝在剖面上为底平顶凸、近陡远缓不对称形态,呈斜列状排列,平均长宽比2.5,平均宽厚比49.1。单一坝长轴方向为北北东15°和北西西295°,并且以北北东方向为主。同时结合界面识别及动态资料,将Z9-61-2井钻遇单一坝坝进行了合理划分与组合,识别内插出13条泥岩夹层,划分出14期增生体,单一坝精细解剖研究工作,对于后期剩余油的挖潜提供理论依据。

关键词：滩坝砂构型单元界面识别单一坝港中油田

国产动画电影中非遗元素表达的叙事与视觉策略

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电影评介 2024年第4期 96-102页

作者：高幸中南民族大学音乐舞蹈学院

非遗即非物质文化遗产,是指由人类创造并传承下来的文化遗产,包括口头传统、表演艺术、社会实践、习俗仪式、手工技艺等等。这些文化遗产丰富多彩,具有浓郁的地域特色和历史文化背景,因此非遗的保护与传承至关重要。随着信息技术的飞速... 详细信息

非遗即非物质文化遗产,是指由人类创造并传承下来的文化遗产,包括口头传统、表演艺术、社会实践、习俗仪式、手工技艺等等。这些文化遗产丰富多彩,具有浓郁的地域特色和历史文化背景,因此非遗的保护与传承至关重要。随着信息技术的飞速发展,数字化记录成为非遗保护与传承的重要手段。而以视听为主要形式的影视艺术,通过其天然的优势,在一定程度上成为非遗文化传承的有效载体.

关键词：口头传统信息技术非物质文化遗产影视艺术非遗保护与传承手工技艺有效载体视觉策略

Clinical study of neutrophil-to-lymphocyte ratio and platelet-tolymphocyte ratio in hypertriglyceridemia-induced acute pancreatitis and acute biliary pancreatitis with persistent organ failure

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World Journal of Gastrointestinal Surgery 2024年第6期16卷 1647-1659页

作者： Mu-Sen Xu Jia-Le Xu Xin gao Shao-Jian Mo Jia-Yu xing Jia-Hang Liu Yan-Zhang Tian Xi-Feng Fu The Third Hospital of Shanxi Medical University Shanxi Bethune HospitalShanxi Academy of Medical SciencesTongji Shanxi HospitalTaiyuan 030032Shanxi ProvinceChina Department of Environmental Health School of Public HealthShanxi Medical UniversityTaiyuan 030032Shanxi ProvinceChina

BACKGROUND The neutrophil-to-lymphocyte ratio(NLR)and platelet-to-lymphocyte ratio(PLR)are novel inflammatory indicators that can be used to predict the severity and prognosis of various *** categorize acute pancreatitis by etiology into acute biliary pancreatitis(ABP)and hypertriglyceridemia-induced acute pancreatitis(HTGP).AIM To investigate the clinical significance of NLR and PLR in assessing persistent organ failure(POF)in HTGP and *** A total of 1450 patients diagnosed with acute pancreatitis(AP)for the first time at Shanxi Bethune Hospital between January 2012 and January 2023 were *** patients were categorized into two groups according to the etiology of AP:ABP in 530 patients and HTGP in 241 *** collected and compared the clinical data of the patients,including NLR,PLR,and AP prognostic scoring systems,within 48 h of hospital *** The NLR(9.1 vs 6.9,P<0.001)and PLR(203.1 vs 160.5,P<0.001)were significantly higher in the ABP group than in the HTGP *** the HTGP group,both NLR and PLR were significantly increased in patients with severe AP and those with a SOFA score≥***,in the ABP group,NLR and PLR were significantly elevated in patients with severe AP,modified computed tomography severity index score≥4,Japanese Severity Score≥3,and modified Marshall score≥***,NLR and PLR showed predictive value for the development of POF in both the ABP and HTGP *** NLR and PLR vary between ABP and HTGP,are strongly associated with AP prognostic scoring systems,and have predictive potential for the occurrence of POF in both ABP and HTGP.

关键词： Acute pancreatitis Gallstone Hypertriglyceridemia Neutrophil-to-lymphocyte ratio Platelet-to-lymphocyte ratio Persistent organ failure

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青藏高原云的气候特征及其对地气系统的影响

兰州大学学报（自然科学版） 2017年第4期53卷 459-466,480页

作者：高星星陈艳张武鲁澎学兰州大学大气科学学院半干旱气候变化教育部重点实验室兰州730000 甘肃省金昌市气象局甘肃金昌737100

利用ISCCPD2资料分析了青藏高原云宏观参量的时空分布特征,结合NCEP资料分析了不同云类与降水和气温的关系,利用CERES SSF MODIS Edition 3A资料分析了云对地气系统的辐射强迫作用.结果表明,青藏高原地区云量分布整体呈自东向西减少的态... 详细信息

利用ISCCPD2资料分析了青藏高原云宏观参量的时空分布特征,结合NCEP资料分析了不同云类与降水和气温的关系,利用CERES SSF MODIS Edition 3A资料分析了云对地气系统的辐射强迫作用.结果表明,青藏高原地区云量分布整体呈自东向西减少的态势;总云量、低云云量、总光学厚度和总云水路径的分布形势很相似;水高积云、水积云、卷云和冰高积云的云水路径及云光学厚度均较小,冰层云、冰雨层云和深对流云的云水路径及云光学厚度均较大;出现最多的是卷云,最少的是冰层云、冰层积云、冰积云和冰雨层云;青藏高原地区的水积云、水高积云、水高层云、卷云和卷层云的云量与降水一致.近20a,中高云量在青藏高原地区呈上升趋势,低云量则呈明显下降趋势,该结果可能导致青藏高原地区地面气温升高.青藏高原地区云的短波辐射强迫主导着云的净辐射强迫效应,且具有显著的季节变化.

关键词：青藏高原国际卫星云气候学计划云参量辐射强迫

Pichia pastoris composition expressed aerolysin mutant of Aeromonas veronii as an oral vaccine evaluated in zebrafish(Danio rerio)

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Marine Life Science & Technology 2024年第3期6卷 475-487页

作者： Yuan-Yuan Yao Qing-Shuang Zhang Shu-Bin Liu Hong-Wei Yang xing-Yu Chen Ya-Lin Yang Chen-Chen gao Chao Ran Tsegay Teame Zhen Zhang Zhi-Gang Zhou Key Laboratory for Feed Biotechnology of the Ministry of Agriculture Institute of Feed Research of Chinese Academy of Agricultural SciencesBeijing 100081China Sino-Norway Fish Gastrointestinal Microbiota Joint Lab Institute of Feed Research of Chinese Academy of Agricultural SciencesBeijing 100081China Institute of Marine Sciences Shantou UniversityShantou 515063China Tigray Agricultural Research Institute(TARI)Mekelle Center Tigray 7101Ethiopia

Vaccines are one of the most practical means to stop the spreading of Aeromonas veronii in *** this study,virulence factor aerolysin mutant NTaer which has lost its hemolytic activity was used as a target *** pastoris constitutive secretory expression NTaer(GS115-NTaer)was used as a potential safe oral vaccine to evaluate its effectiveness on zebrafish *** result shows that vaccination of GS115-NTaer for four weeks did not affect the growth performance of the host,while eliciting an effective immune protective *** with the control group,the GS115-NTaer could significantly up-regulate the relative expression level of the intestinal tight junction protein 1α(TJP1α)gene,and significantly increased the contents of lysozyme(LYZ),complement C3 and C4 in the gut,indicating that the innate immune response of the fish was *** relative gene expression levels of macrophage-expressed gene 1(MPEG1)and T cell receptor(TCR-α)in the gut,and MPEG1,CD4,CD8,TCR-α,GATA3,and T-bet in the spleen were all increased significantly,indicating that the cellular immune response of the fish was ***,the contents of serum IgM and intestinal mucosa IgZ antibodies were significantly increased,which showed that humoral immunity was also ***,inoculation with GS115-NTaer significantly changed the structure of gut *** particular,the relative ratio of(Firmicutes+Fusobacteriota+Bacteroidota)/Proteobacteria was significantly higher than that of the control and GS115 ***,the vaccinated fish were challenged with ***,and the relative percent survival of GS115 and the GS115-NTear groups was 14.28%and 33.43%.This improvement of immunity was not only due to the specific immune response but also attributed to the improvement of innate immunity and the gut microbiota which was demonstrated by the germ-free zebrafish ***,this study provides information on the effectiveness of GS115-NTear

关键词： Aeromonas veronii Aerolysin mutant NTaer Oral vaccine Immune response Gut microbiota

TCGA-based analysis of oncogenic signaling pathways underlying oral squamous cell carcinoma

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Oncology and Translational Medicine 2024年第2期10卷 87-92页

作者： xing gao Dan-Dan Liu Jin-Zhong Liu Rui Wang Department of Prevention Hospital of StomatologyJilin UniversityChangchun 130021China

Background:Oral squamous cell carcinoma(OSCC)represents a prevalent malignancy in the oral and maxillofacial area,having a considerable negative impact on both the quality of life and overall survival of affected *** research endeavors to leverage bioinformatic approaches to elucidate oncogenic signaling pathways,with the ultimate goal of gaining deeper insights into the molecular underpinnings of OSCC pathogenesis,and thus laying the groundwork for the development of more effective therapeutic and preventive ***:Differential expression analysis was performed on mRNA data from tumor and normal tissue groups to identify genes associated with OSCC,using The Cancer Genome Atlas *** of oncogenic signaling pathways linked to differentially expressedmRNAs were made,and these results were presented visually using R software,using Gene Ontology and Kyoto Encyclopedia of Genes and Genomes ***:GO and KEGG analyses of 2938 differentially expressed genes in OSCC highlighted their significant involvement in various biological ***,these processes were related to the extracellular matrix,structural organization,connective tissue development,and cell cycle ***:The comprehensive exploration of gene expression patterns provides valuable insights into potential oncogenic mechanisms in OSCC.

关键词： Oral squamous cell carcinoma Oncogenic signaling pathway Bioinformatics

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数学形态学在地震相干属性提取中的应用

石油地球物理勘探 2010年第4期45卷 482-484页

作者：许海涛毕建军唐红光安晋朝高星星中国矿业大学(北京)地球科学与测绘工程学院北京100083

形态学运算的目的在于抽取图像的相关结构,这些结构可通过其子图表示为集合,可利用称之为结构元素的已知形状的另一集合对图像进行探测。形态学的基本运算如膨胀、腐蚀、开、闭等都需要结构元素的参与才能实现。文中通过对比形态学处理... 详细信息

形态学运算的目的在于抽取图像的相关结构,这些结构可通过其子图表示为集合,可利用称之为结构元素的已知形状的另一集合对图像进行探测。形态学的基本运算如膨胀、腐蚀、开、闭等都需要结构元素的参与才能实现。文中通过对比形态学处理前、后地震资料的相干结果可知,形态学的滤波作用可以使断层与河道的表现更加明显,同时还可以清晰表现地质异常体中的断层,因此利用形态学滤波器处理地震资料可以提高相干效果。

关键词：数学形态学滤波器结构元素相干效果