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Acta Metallurgica Sinica(English Letters) 2024年第1期37卷 145-158页

作者： Yan Wen Xuan Sun Jian Zhou Bingliang Liu haojie guo Yuxin Li Fei Yin Liqiang Wang Lechun Xie Lin Hua Hubei Key Laboratory of Advanced Technology for Automotive Components Wuhan University of TechnologyWuhan430070China Hubei Collaborative Innovation Center for Automotive Components Technology Wuhan430070China Hubei Longzhong Laboratory Xiangyang441000China Shanghai Aircraft Manufacturing Co. Ltd.Commercial Aircraft Corporation of ChinaLtd.Shanghai201324China State Key Laboratory of Metal Matrix Composites School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai200240China

In order to improve the properties of titanium alloys manufactured by laser melting deposition(LMD),the electroshocking treatment(EST)was proposed in this *** effects of EST on microstructure and mechanical properties of LMD Ti-6.5Al-3.5Mo-1.5Zr-0.3Si were *** results showed that the width of the heat affected band decreased and disappeared under the thermal and athermal effects of EST,resulting in the uniform *** the microstructure,theαlaths became coarser gradually,and the quantity ofα/βinterface was *** reduction of the quantity ofα/βinterface leads to make less resistant to dislocation,resulting in the reduction in hardness and *** discontinuous grain boundaryαphase and nucleationαcolony near grain boundary inhibited the crack propagation and improved the ***,EST can manipulate the microstructure and improve the mechanical properties of LMD titanium alloys.

关键词： Electroshocking treatment(EST) Laser melting deposition(LMD) Titanium alloy Microstructure Mechanical properties

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谷子CPP基因家族鉴定及外源硒响应分析

西北植物学报 2024年第8期44卷 1250-1260页

作者：杨馥熔杜冰郭浩杰王成张富厚孟超敏河南科技大学农学院河南省旱地作物种质资源利用工程研究中心河南洛阳471000

【目的】探究谷子CPP基因家族成员特征及在外源硒处理下的响应模式,为谷子富硒高叶酸新品种选育提供遗传材料。【方法】借助生物信息学工具鉴定谷子CPP家族成员,用qRT-PCR技术对CPP基因在不同组织及外源硒处理下的表达水平进行检测。【... 详细信息

【目的】探究谷子CPP基因家族成员特征及在外源硒处理下的响应模式,为谷子富硒高叶酸新品种选育提供遗传材料。【方法】借助生物信息学工具鉴定谷子CPP家族成员,用qRT-PCR技术对CPP基因在不同组织及外源硒处理下的表达水平进行检测。【结果】(1)谷子基因组中包含9个CPP基因,定位于6条染色体上,分别命名为SiCPP1-SiCPP9,所有成员均定位在细胞核,蛋白质二级结构中无规则卷曲占比最重。(2)谷子CPP蛋白可分为4个亚家族,相同亚家族之间保守基序和结构域的数目及分布相似。(3)启动子分析发现谷子CPP家族中存在大量光、生长发育、激素及胁迫响应元件。(4)谷子CPP家族成员在根、茎、叶和穗中差异表达,SiCPP5、SiCPP6、SiCPP7和SiCPP8对外源硒响应最强烈。【结论】谷子CPP家族成员具有组织表达特异性,且对外源硒存在不同程度响应。

关键词：谷子 CPP基因家族外源硒生物信息学分析表达模式

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宁波春茬网纹甜瓜品种比较试验及综合分析

长江蔬菜 2024年第12期 15-17页

作者：吴保良郭昊杰纪道保段杨吴新胜宁波微萌种业有限公司浙江宁波315100

为了筛选出适合宁波及周边地区种植的网纹甜瓜新品种,为优良网纹甜瓜新品种的选择和推广奠定基础,对7个网纹甜瓜品种开展比较试验。结果表明,恬口1号和凝宝1号综合表现良好,与对照品种翠甜及其他参试品种相比,这2个品种田间长势好,抗性... 详细信息

为了筛选出适合宁波及周边地区种植的网纹甜瓜新品种,为优良网纹甜瓜新品种的选择和推广奠定基础,对7个网纹甜瓜品种开展比较试验。结果表明,恬口1号和凝宝1号综合表现良好,与对照品种翠甜及其他参试品种相比,这2个品种田间长势好,抗性较强;果实外观好看,呈高圆形,果肉中心糖度高,口感好,风味浓郁,产量和种植效益均较高。可作为宁波及周边地区主要网纹甜瓜品种进行栽培,建议在宁波及周边地区进行大棚推广种植。

关键词：网纹甜瓜品种甜瓜品质比较试验

Complete chloroplast genome sequences of Schisandra chinensis:genome structure,comparative analysis,and phylogenetic relationship of basal angiosperms

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Science China(Life Sciences) 2017年第11期60卷 1286-1290页

作者： haojie guo Jiushi Liul Li Luo Xueping Wei Jin Zhang Yaodong Qi Bengang Zhang Haitao Liu Peigen Xiao Instiute of Medicinal Plant Development Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100193China Institute of Traditional Chinese Medicine Xinjiang Medical UniversityUrumqi 830011China

Dear Editor, Schisandra chinensis （Turcz.） Baill. belongs to family Schisandraceae. Its fruit called ＂Wu Wei Zi＂ in Chinese is a well-known medicinal material, which is used to treat chronic cough and dyspnea, nocturnal emission, enuresis, etc. （National Pharmacopoeia Committee, 2015）. Except for S. chinensis, many species of Schisandraceae, such as S. sphenanthera, S. lancifolia and S. rubriflora, are used as the original olants of folk medicines.

关键词： sequences of Schisandra chinensis genome structure comparative analysis phylogenetic relationship basal angiosperms

There is life after coking for Ir nanocatalyst superlattices

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Nano Research 2022年第8期15卷 6969-6976页

作者： Antonio J.Martínez-Galera haojie guo Mariano D.Jiménez-Sánchez Stefano Franchi Kevin C.Prince José M.Gómez-Rodríguez Departamento de Física de la Materia Condensada Universidad Autónoma de MadridMadrid E-28049Spain Instituto Nicolás Cabrera Universidad Autónoma de MadridMadrid E-28049Spain Elettra-Sincrotrone Trieste S.C.p.A. in Area Science ParkBasovizza(Trieste)34149Italy Condensed Matter Physics Center(IFIMAC) Universidad Autónoma de MadridMadrid E-28049Spain

Achieving superior performance of nanoparticle systems is one of the biggest challenges in *** major phenomena,occurring during the reactions,hinder the development of the full potential of nanoparticle catalysts:sintering and contamination with carbon containing species,sometimes called ***,we demonstrate that Ir nanocrystals,arranged into periodic networks on hexagonal boron nitride(h-BN)supports,can be restored without sintering after contamination by persistent *** restoration yields the complete removal of carbon from the nanocrystals,which keep their crystalline structure,allowing operation without *** findings,together with the possibility of fine tuning the nanocrystals size,confer this nanoparticle system a great potential as a testbed to extract key information about catalysis-mediated oxidation *** the case of the CO oxidation by O2,reaction of interest in environmental science and green energy production,the existence of chemical processes not observed before in other nanoparticle systems is demonstrated.

关键词： catalysis coke nanoparticles scanning tunneling microscopy(STM) X-ray photoemission spectroscopy(XPS)

Interfacial Oxygen Octahedral Coupling-Driven Robust Ferroelectricity in Epitaxial Na_(0.5)Bi_(0.5)TiO_(3)Thin Films

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Research 2024年第2期2023卷 149-157页

作者： haojie Han Qinghua Zhang Wei Li Yiqun Liu Jiasheng guo Yue Wang Qian Li Lin Gu Ce-Wen Nan Jing Ma State Key Laboratory of New Ceramics and Fine Processing Schoolof Materials Science and EngineeringTsinghua UniversityBeijing 100084China Beijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190China

The oxygen octahedral rotation(OOR)forms fundamental atomic distortions and symmetries in perovskite oxides and definitely determines their properties and ***,epitaxial strain and interfacial structural coupling engineering have been developed to modulate the OOR patterns and explore novel properties,but it is difficult to distinguish the 2 ***,different symmetries are induced in Na_(0.5)Bi_(0.5)TiO_(3)(NBT)epitaxial films by interfacial oxygen octahedral coupling rather than epitaxial *** NBT film grown on the Nb:SrTiO_(3)substrate exhibits a paraelectric tetragonal phase,while with La_(0.5)Sr_(0.5)MnO_(3)as a buffer layer,a monoclinic phase and robust ferroelectricity are obtained,with a remanent polarization of 42μC cm^(-2)and a breakdown strength of 7.89 MV cm^(-1),which are the highest record among NBT-based ***,the interfacial oxygen octahedral coupling effect is demonstrated to propagate to the entire thickness of the film,suggesting an intriguing long-range *** work provides a deep insight into understanding the structure modulation in perovskite heterostructures and an important avenue for achieving unique functionalities.

关键词： effect. interfacial coupling

Lead-free hybrid two-dimensional double perovskite with switchable dielectric phase transition

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Chinese Chemical Letters 2024年第6期35卷 176-179页

作者： Tian Yang Yi Liu Lina Hua Yaoyao Chen Wuqian guo haojie Xu Xi Zeng Changhao Gao Wenjing Li Junhua Luo Zhihua Sun College of Chemistry Fuzhou UniversityFuzhou 350108China State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China

Molecular dielectric switches constitute a type of intelligent materials that are highly coveted for their distinctive advantages of switchable dielectric responses,lightweight,and mechanical ***(2D)hybrid perovskites have demonstrated excellent promise for assembling dielectric switches,in which the dynamic motions of organic moieties afford driving force to trigger switchable dielectric phase ***,we successfully assembled a new lead-free hybrid double perovskite,(CHA)4Cu Bi Br8(1,CHA=cyclohexylammonium),adopting a typical 2D structural motif,which shows dielectric anisotropy and bistable behaviors during the reversible phase transition near T_(c)=378 K(the Curie temperature).That is,its dielectric constants could be switched and tuned between high-dielectric and low-dielectric *** analyses reveal that the ordered-disordered transformation of the organic CHA+moiety and distortion of inorganic framework account for its phase *** result will stimulate further exploration of molecular dielectric switches in this 2D environmentally friendly family.

关键词： Dielectric switch Lead-free Double perovskite Phase transition Symmetry breaking

Collecting multi-crystal data from transparent film

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Collecting multi-crystal data from transparent film

Long-term grape powder feed attenuates experimental ischemic stroke by altering gut microbiota and metabolome

第五届中国结构生物学学术讨论会

作者： Bing Li Qissheng Wang haojie guo Jianhua He Shanghai Institute of Applied Physics Chinese Academy of Sciences University of Chinese Academy of Sciences

Rastering strategy, which was used to collect diffraction data of microcrystals at synchrotron radiation facility, is laborious and wasting time. Utilization of jet to extrude microcrystals into X-ray beam will consuming a lot of *** presents a way, which use Kapton film as sample holder. Because small crystals is visible on the Kapton film, which is available for image ***’s more,Kapton film almost have no absorption on X-ray and the background scattering is *** adopt image recognition to locate the position of the microcrystals,to realize microcrystals’ data collection with size range between 1 to 10 *** chose lysozyme and fatty acid binding protein（FABP）4 as test samples and compare the method with traditional nylon loop sample loading *** result shows that the data quality is almost the same but much less time is needed to harvest the crystal and collect data. Image recognition technology can increase the probability of X-ray hit the protein crystals.

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Food Science and Human Wellness 2024年

作者： haojie Jin Decao Yang Jia guo Baohui Xu Yu Fu Lixiang Xue Yan Wang The Key Laboratory for Silviculture and Conservation of Ministry of Education， The College of forestry， Beijing Forestry University Institute of Medical Innovation and Research， Peking University Third Hospital Department of Neurology， Peking University Third Hospital Centre of Hypertension Care， Shanxi Medical University First Hospital Medical Research Centre， Peking University Third Hospital Department of Surgery， Division of Vascular Surgery， Stanford University School of Medicine，Stanford

Increasing evidence indicates that a healthy diet plays a protective role against ischemic stroke injury. As an antioxidant food， grape powder has been shown to have a neuroprotective function after ischemic injury. In the current research， we aimed to determine whether regular grape powder (GP) feeding before brain damage plays a protective role against ischemic damage and its potential mechanism. Mice had grape powder in drinking water for 4 weeks. Then， fecal samples were collected for 16S RNA analysis and metabolite profiling. Ischemic stroke was triggered using GP prefeed mice by MCAo (middle cerebral artery occlusion) to compare the stroke-induced infarction size to the drinking water (DW) group. The data showed that 4 weeks of GP pretreatment significantly decreased the ischemic infarct size. Meanwhile， GP treatment altered the gut microbiota by enriching the population of Lachnospiraceae and enhancing a gut metabolite called fiestin， which belongs to the flavonoid group. Mechanistically， we demonstrated that fiestin could inhibit LPS-induced proinflammatory macrophage polarization in vitro. We also showed that regular grape power feed could decrease stroke-induced neuroinflammation in vivo. In conclusion， our study demonstrated that 4 weeks of GP feeding attenuates experimental ischemic stroke via the gut-brain-immune axis.

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面向船闸船舶的在线多目标跟踪技术研究

装备环境工程 2024年第3期21卷 73-79页

作者：仇耀宗李琳郭皓捷于清泽中国电子科技集团公司第五十八研究所江苏无锡214072 哈尔滨工程大学船舶工程学院哈尔滨150001

目的满足船闸船舶在线跟踪要求,改善由于复杂背景、遮挡等因素导致轨迹不连续和身份变更的问题,提出一种增强上下文联系和上下文注意力的多目标跟踪方法。方法基于设计的在线系统,采集连续帧图像,改进FairMOT多目标跟踪模型。首先,通... 详细信息

目的满足船闸船舶在线跟踪要求,改善由于复杂背景、遮挡等因素导致轨迹不连续和身份变更的问题,提出一种增强上下文联系和上下文注意力的多目标跟踪方法。方法基于设计的在线系统,采集连续帧图像,改进FairMOT多目标跟踪模型。首先,通过在骨干网络设计基于Bottleneck和Contextual Transformer的上下文建模模块,以加强上下文联系,增强场景理解的能力。其次,在迭代聚合后的特征图上应用全局上下文注意力,提高定位船舶目标的能力。结果相对于原生的Fair MOT方法,设计上下文建模模块后,多目标跟踪准确度指标MOTA提高2.1%,继续添加全局上下文注意力MOTA,共计提高3.5%,同时在多项指标中取得了最佳表现。结论改进的Fair MOT方法不仅拥有更强的轨迹保持能力,而且在身份维持方面更胜一筹。

关键词：在线多目标跟踪船闸船舶改进FairMOT 上下文联系 Contextual Transformer 上下文注意力