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Expression and regulation of microRNA-29a and microRNA-29c in early diabetic rat cataract formation

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International Journal of Ophthalmology(English edition) 2016年第12期9卷 1719-1724页

作者： Ying sun Chun-Mei lu Zhen Song Ke-Ke Xu Shu-Bin Wu Zhi-jian Li Department of Ophthalmology First Affiliated HospitalHarbin Medical University Harbin 150001 Heilongjiang Province China Department of Ophthalmology Second Hospital of Heilongjiang Province Harbin 150001 Heilongjiang Province China Department of Physiology Harbin Medical UniversityHarbin 150001 Heilongjiang Province China

AIM： To determine the role of microRNA （miRNA）-29a and miRNA-29c in the regulation of apoptosis in early rat diabetic cataract ***： Streptozotocin （STZ）-induced diabetic Sprague-Dawley （SD） rats were used in the study. The expression level of miRNA-29a, miRNA-29c, and BCL2-modifying factor （BMF） in lens epithelial cells （LECs） samples were measured using quantitative real-time polymerase chain reaction. Prediction algorithms of miRanda, TargetScan 6.2, and mirRDB to perform a miRNA gene network analysis were used for the potential miRNA-29a and miRNA-29c targets. RESULTS： The miRNA-29a and miRNA-29c expression levels were all significantly lower in the control group compared to the 2 and 4wk diabetic samples （P〈0.01）. The network analysis indicated that one miRNA-29a and miRNA-29c targets was BMF. There was significantly higher expression of BMF mRNA compared to the normal controls （P〈0.01）. CONCluSION： Apoptosis occurs in rat LECs following high blood glucose exposure. It is likely that apoptosis during diabetic cataract formation involves the decreased expression of miRNA-29a and miRNA-29c and the increased expression of BMF.

关键词： microRNA-29a microRNA-29c BCL2-modifying factor apoptosis diabetic cataract

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面向电子商务的酒店业数字化转型实证分析

哈尔滨师范大学社会科学学报 2024年第4期15卷 90-94页

作者：卢静怡浙江旅游职业学院酒店管理学院浙江杭州311231

数字化转型使得酒店能够利用大数据和分析工具来进行更加精准的市场分析和决策制定。通过分析客户行为数据、市场趋势和竞争对手信息,酒店可以优化其产品组合,制定更加有效的营销策略,以及调整价格策略以最大化利润。数字化转型通过提... 详细信息

数字化转型使得酒店能够利用大数据和分析工具来进行更加精准的市场分析和决策制定。通过分析客户行为数据、市场趋势和竞争对手信息,酒店可以优化其产品组合,制定更加有效的营销策略,以及调整价格策略以最大化利润。数字化转型通过提高互动性、个性化服务、无缝体验和体验式服务等手段,极大地提升了客户体验感。酒店的数字化还有利于通过数据分析来识别运营中的低效之处,从而进行流程优化和成本控制。

关键词：电子商务酒店业数字化转型实证分析

Tunable ultrathin dual-phase P-doped Bi_(2)MoO_(6) nanosheets for advanced lithium and sodium storage

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Nano Research 2022年第7期15卷 6128-6137页

作者： Fucong Lyu Zhe Jia Shanshan Zeng Fei-Xiang Ma lulu Pan Lizi Cheng Yan Bao Ligang sun Weihui Ou Peng Du Yang Yang Li Jian lu Centre for Advanced Structural Materials City University of Hong Kong Shenzhen Research InstituteGreater Bay Joint DivisionShenyang National Laboratory for Materials ScienceShenzhen 518057China Hong Kong Branch of National Precious Metals Material Engineering Research Centre City University of Hong KongKowloonHong KongChina School of Materials Science and Engineering Southeast UniversityNanjing 211189China School of Science Harbin Institute of TechnologyShenzhen 518055China Department of Mechanical Engineering City University of Hong KongKowloonHong KongChina CityU-Shenzhen Futian Research Institute Shenzhen 518045China Center of Super-Diamond and Advanced Films(COSDAF) City University of Hong KongKowloonHong KongChina Department of Material Science and Engineering City University of Hong KongKowloonHong KongChina

The construction of electrode materials for lithium-ion batteries(LIBs)and sodium-ion batteries(SIBs)has gradually been an appealing and attractive technology in energy storage research *** the present work,a facile strategy of synthesizing ultrathin amorphous/nanocrystal dual-phase P-doped Bi_(2)MoO_(6)(denoted as P-BiMO)nanosheets via a one-step wet-chemical synthesis approach is *** distinct from conventional two-dimensional(2D)nanosheets,our newly developed ultrathin P-BiMO nanosheets exhibit a unique tunable amorphous/nanocrystalline dual-phase structure with several compelling advantages including fast ion exchange ability and superb volume change buffer *** experimental results reveal that our prepared P-BiMO-6 electrode delivers an excellent reversible capacity of 509.6 mA·g^(−1) after continuous 1,500 cycles at the current densities of 1,500 mA·g^(−1) and improved rate performance for *** the meanwhile,the P-BiMO-6 electrode also shows a reversible capacity of 300.6 mA·g^(−1) after 100 cycles at 50 mA·g^(−1) when being used as the SIBs *** present work uncovers an effective dual-phase nanosheet structure to improve the performance of batteries,providing an attractive paradigm to develop superior electrode materials.

关键词： amorphous/nanocrystalline dual-phase structure ultrathin nanosheets P-doped Bi_(2)MoO_(6) anode materials lithium-ion batteries sodium-ion batteries

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3D打印技术在动物源食品加工中的研究进展

食品与发酵工业 2024年第8期50卷 325-333页

作者：关桦楠孙艺铭刘晓飞张志红江苏科技大学粮食学院江苏镇江212100 哈尔滨商业大学食品工程学院黑龙江哈尔滨150028

3D打印技术是一项新兴技术,旨在从计算机辅助设计模型中建立一个三维物体,已广泛地用于农业、医疗保健、汽车工业、机车工业和航空工业等多个领域。3D打印技术作为一种将数字化软件与加工设备融合的新技术,可以实现物体的个性化定制和... 详细信息

3D打印技术是一项新兴技术,旨在从计算机辅助设计模型中建立一个三维物体,已广泛地用于农业、医疗保健、汽车工业、机车工业和航空工业等多个领域。3D打印技术作为一种将数字化软件与加工设备融合的新技术,可以实现物体的个性化定制和批量生产。除此之外,3D打印技术因无模具成型、节省材料及定制化膳食等特点,在食品加工领域逐渐兴起。在动物源食品加工中,3D打印具有独特的潜力,可以创造复杂的几何结构,同时具有经济和环境效益。它可以根据营养需求、卡路里摄入、特定形状、质地、颜色或味道等特定属性创建个性化的食物。基于此,该文综述了4种常见的3D打印技术,分析了常见的食品大分子对动物源食品3D打印产生的影响,并对3D打印技术在动物源性食品加工中的应用现状进行了总结。

关键词： 3D打印动物源食品食品加工食品营养个性化食物

Comparison of genetic impact on growth and wood traits between seedlings and clones from the same plus trees of Pinus koraiensis

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Journal of Forestry Research 2023年第2期34卷 469-480页

作者： Xiaoting Liu Zhimin lu Jingui Wu Yuchun Yang Shuchun Li Lin Wu Qingshan Xu Qi Yu Li Zhao Jian sun Wei Zheng Mulualem Tigabu Xiyang Zhao College of Forestry and Grasslands Jilin Agricultural UniversityChangchun 130118JilinPeople’s Republic of China State Key Laboratory of Tree Genetics and Breeding Northeast Forestry UniversityHarbin 150040HeilongjiangPeople’s Republic of China Jilin Provincial Academy of Forestry Sciences Changchun 130031JilinPeople’s Republic of China lushuihe Forestry Bureau of Jilin Baishan 134506JilinPeople’s Republic of China Forestry Department of Jilin Province Tree Seedling Management StationChangchun 130000JilinPeople’s Republic of China Southern Swedish Forest Research Centre Swedish University of Agricultural SciencesP.O.Box 19023422 LommaSweden

To evaluate the relationships among clones and open pollinated families from the same plus trees and to select elite breeding materials,growth,and wood characteristics of 33-year-old Pinus korainsis clones and families were measured and *** results show that growth and wood characters varied *** variation due to clonal effects was higher than that of family *** ratio of genetic to phenotypic coefficient of variation of clones in growth and wood traits was above 90%,and the repeatability of these characteristics was more than 0.8,whereas the ratio of genetic to phenotypic coefficient of variation of families was above 90%.The broad-sense heritability of all characteristics exceeded 0.4,and the narrow-sense family heritability of growth traits was less than *** characteristics were positively correlated with each other,but most wood properties were weakly correlated in both clones and *** length and width were positively correlated between clones and *** the membership function method,eleven clones and four families were selected as superior material for improved diameter growth and wood production,and two families from clonal and open-pollinated trees showed consistently better ***,selection of the best clones is an effective alternative to deployment of families as the repeatability estimates from clonal trees were higher than narrow-sense heritability estimates from open pollinated *** results provide valuable insight for improving *** breeding programs and subsequent genetic improvement.

关键词： Pinus koraiensis Korean pine Clonal parents Progeny testing Repeatability Broad-sense heritability Narrow-sense heritability

Quantum transport in topological semimetals under magnetic fields (Ⅱ)

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Frontiers of physics 2019年第3期14卷 1-24页

作者： Hai-Peng sun Hai-Zhou lu Department of Physics Harbin Institute of Technology Harbin 150001 China Shenzhen Institute for Quantum Science and Engineering and Department of Physics Southern University of Science and Technology Shenzhen 518055 China Shenzhen Key Laboratory of Quantum Science and Engineering Shenzhen 518055 China

We review our recent works on the quantum transport, mainly in topological semimetals and also in topological insulators, organized according to the strength of the magnetic field. At weak magnetic fields, we explain the negative magnetoresistance in topological semimetals and topological insulators by using the semiclassical equations of motion with the nontrivial Berry curvature. We show that the negative magnetoresistance can exist without the chiral anomaly. At strong magnetic fields, we establish theories for the quantum oscillations in topological Weyl, Dirac, and nodal-line semimetals. We propose a new mechanism of 3D quantum Hall effect, via the "wormhole" tunneling through the Weyl orbit formed by the Fermi arcs and Weyl nodes in topological semimetals. In the quantum limit at extremely strong magnetic fields, we find that an unexpected Hall resistance reversal can be understood in terms of the Weyl fermion annihilation. Additionally, in parallel magnetic fields, longitudinal resistance dips in the quantum limit can serve as signatures for topological insulators.

关键词： topological semimetai topological insulator quantum oscillation negative magne to resistance quantum Hall effect

TB5钛合金表面的激光打标着色性能及应用研究

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包装工程 2024年第11期45卷 72-79页

作者：刘壮傅箭华孙集一哈尔滨商业大学轻工学院哈尔滨150028

目的通过TB5钛合金表面激光着色后不同的颜色表面结构及成分研究,探讨颜色变化的机理,为同类金属着色控制提供参考。方法在钛合金表面使用纳秒激光诱导着色,通过改变激光器参数在材料表面生成不同颜色,使用扫描电镜对不同颜色的表面结... 详细信息

目的通过TB5钛合金表面激光着色后不同的颜色表面结构及成分研究,探讨颜色变化的机理,为同类金属着色控制提供参考。方法在钛合金表面使用纳秒激光诱导着色,通过改变激光器参数在材料表面生成不同颜色,使用扫描电镜对不同颜色的表面结构及成分表征,探讨颜色变化的机理,再使用接触角测量仪探讨不同颜色表面润湿性的变化,为其应用奠定基础。结果实验表明,改变激光参数后实验得到蓝、紫、黄色等多种颜色,未着色前的钛合金表面接触角为46.77°,呈亲水性,着色后得到的颜色样本表现为疏水性。结论在TB5钛合金表面通过激光打标着色技术得到了不同颜色样本与处理后金属表面润湿性之间的关系,证明了通过调节激光参数集可同时改变金属的着色效果以及润湿性。

关键词：激光着色钛合金激光打标润湿性

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遥感图像变化检测方法研究综述

计算机工程与应用 2024年第20期60卷 30-48页

作者：孙剑明赵梦鑫郝旭耀哈尔滨商业大学计算机与信息工程学院哈尔滨150028

遥感图像变化检测是遥感领域中一项重要的研究内容,其旨在利用遥感技术和图像处理方法来识别地表覆盖变化的模式和趋势。为了深入了解该方面的发展现状及其使用的技术方法,总结分析了大量的资料和文献,对遥感图像变化检测方法进行了较... 详细信息

遥感图像变化检测是遥感领域中一项重要的研究内容,其旨在利用遥感技术和图像处理方法来识别地表覆盖变化的模式和趋势。为了深入了解该方面的发展现状及其使用的技术方法,总结分析了大量的资料和文献,对遥感图像变化检测方法进行了较为全面的综述。介绍了变化检测的概念和处理流程;从6个角度总结了变化检测方法的分类体系,并回顾了其发展历程;概述了各类变化检测方法的原理和特点,对其优缺点进行了简要分析,从6个方面讨论了对遥感图像进行变化检测的现实应用价值;对存在的一些问题与不足进行了简要分析,提出了可能改善这些问题的方法,同时也预言了这些方法在实际应用中可能会遇到的阻碍。最后,对变化检测方法进行总结,并展望了未来的发展方向,以期更好地了解遥感图像变化检测方法的研究现状和发展趋势,为进一步的研究提供参考。

关键词：遥感图像变化检测发展历程检测方法应用价值

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面向变形飞行器的时变气动参数在线辨识方法

哈尔滨工程大学学报 2024年第8期45卷 1520-1526页

作者：卢昕玥张鹏宇霍文霞张严雪王剑颖中山大学航空航天学院广东广州510275 空间物理重点实验室北京100190

针对变形飞行器快时变气动参数的在线高精度获取问题,本文提出一种基于BP神经网络模型的气动参数在线辨识方法。基于变形飞行器气动模型的非线性输入/输出映射关系,建立能够在一定精度范围内逼近变形飞行器气动模型的BP神经网络模型。... 详细信息

针对变形飞行器快时变气动参数的在线高精度获取问题,本文提出一种基于BP神经网络模型的气动参数在线辨识方法。基于变形飞行器气动模型的非线性输入/输出映射关系,建立能够在一定精度范围内逼近变形飞行器气动模型的BP神经网络模型。根据在线实测动力学参数观测数据,采用扩展卡尔曼滤波方法在线训练神经网络,实时校正并获取神经网络模型参数,基于神经网络模型快速计算并预测气动参数,从而跟踪快时变、非线性气动模型的变化。通过对变形飞行器连续变形/构型突变的气动参数辨识进行数学仿真验证。结果表明:提出的方法收敛速度快、在线辨识精度较高,可以实现对变形飞行器气动参数的有效辨识。

关键词：变形飞行器快时变气动参数非线性气动模型气动参数辨识在线辨识智能辨识神经网络卡尔曼滤波