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新形势下以解决复杂工程问题为导向的城市地下空间专业人才培养模式

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创新创业理论研究与实践 2024年第11期7卷 129-134页

作者：张鑫磊高洪梅申志福刘璐王志华孙晋晶南京工业大学交通运输工程学院江苏南京211816

人工智能、虚拟仿真、大数据等新兴技术的蓬勃发展,促进了城市地下空间专业越发注重学科交叉融合及技术原始创新。在新形势下,传统的人才培养模式已无法适应城市地下空间利用面临的新挑战,以解决复杂工程问题为导向的人才培养模式成了... 详细信息

人工智能、虚拟仿真、大数据等新兴技术的蓬勃发展,促进了城市地下空间专业越发注重学科交叉融合及技术原始创新。在新形势下,传统的人才培养模式已无法适应城市地下空间利用面临的新挑战,以解决复杂工程问题为导向的人才培养模式成了当务之急。该文阐明以解决复杂工程问题为导向的培养模式的重要性,探索其教学模式,旨在培养学生解决复杂工程问题的跨学科及综合能力,以适应未来城市地下空间工程发展的需求与挑战。

关键词：新工科城市地下空间工程解决复杂工程问题为导向新形势新兴技术学科交叉

Parameter study on numerical simulation of corner separation in LMFA-NACA65 linear compressor cascade

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Chinese Journal of Aeronautics 2017年第1期30卷 15-30页

作者： Gao Feng Ma Wei sun jinjing Jérome Boudet Xavier Ottavy Liu Yangwei Lu Lipeng Shao Liang National Key Laboratory of Science and Technology on Aero-Engine Aero-thermodynamics School of Energy and Power Engineering Beihang University Beijing 100191 China Department of Mechanical Engineering Sciences University of Surrey Guildford GU2 7XH UK School of Aeronautics and Astronautics Shanghai Jiao Tong University Shanghai 200240 China Laboratoire de Mecanique des Fluides et d'Acoustique Ecole Centrale de Lyon Ecully 69134 France

Large-eddy simulation（LES） is compared with experiment and Reynolds-averaged Navier-Stokes（RANS）, and LES is shown to be superior to RANS in reproducing corner separation in the LMFA-NACA65 linear compressor cascade, in terms of surface limiting streamlines,blade pressure coefficient, total pressure losses and blade suction side boundary layer profiles. However, LES is too expensive to conduct an influencing parameter study of the corner *** approach, despite over-predicting the corner separation, gives reasonable descriptions of the corner separated flow, and is thus selected to conduct a parametric study in this paper. Two kinds of influencing parameters on corner separation, numerical and physical parameters, are analyzed and discussed： second order spatial scheme is necessary for a RANS simulation; incidence angle and inflow boundary layer thickness are found to show the most significant influences on the corner separation among the parameters studied; unsteady RANS with the imposed inflow unsteadiness（inflow angle varying sinusoidally with fluctuating amplitude of 0.92°） does not show any non-linear effect on the corner separation.

关键词： Corner separation Influencing parameter LES Linear compressor cascade RANS

An exon skipping in a SEPALLATA-Like gene is associated with perturbed floral and fruits development in cucumber

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Journal of Integrative Plant Biology 2016年第9期58卷 766-771页

作者： Xin Wang Dongli Gao jinjing sun Min Liu YaoYao Lun Jianshu Zheng Shenhao Wang Qingzhi Cui Xiaofeng Wang Sanwen Huang State Key Laboratory of Crop Stress Biology for Arid Areas College of HorticultureNorthwest A&F UniversityYangling 712100China Key Laboratory of Biology and Genetic Improvement of Horticultural Crops Ministry of AgricultureInstitute of Vegetables and FlowersChinese Academy of Agricultural SciencesBeijing 100081China Agricultural Genomics Institute at Shenzhen Chinese Academy of Agricultural SciencesShenzhen 518120China Vegetable Research Institute Hunan Academy of Agricultural SciencesChangsha 410125China

Summary We isolated a mutant showing perturbations in the development of male and female floral organs and fruits. Analysis of the single nucleotide polyTnorphisms from bulked F2 pools identified the causative variant occurring in Csa4G126690. Csa4G126690 shows high homol- ogy to Arobidopsis 5EPALLATA2 （SEP2） thus being desig- nated CsSEP2. The causative variant was located on the splicing site of CsSEP2, resulting in the skipping of exon 6 and abolishment of the transcriptional activity. Our data suggest that CsSEP2 is involved in the floral organ and fruits development by conferring transcriptional activity.

关键词： Cucumis sativus L EMS mutant exon skipping floral and fruits development whole genome re-sequencing

Engineering Non-transgenic Gynoecious Cucumber Using an Improved Transformation Protocol and Optimized CRISPR/Cas9 System

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Molecular Plant 2017年第12期10卷 1575-1578页

作者： Bowen Hu Dawei Li Xin Liu Jingjing Qi Dongli Gao Shuqiao Zhao Sanwen Huang jinjing sun Li Yang Key Laboratory of Genome Analysis of the Ministry of Agriculture Agricultural Genomics Institute at Shenzhen Chinese Academy of Agricultural Sciences Shenzhen 518120 China Key Laboratory of Biology and Genetic Improvement of Horticultural Crops Ministry of Agriculture Institute of Vegetables and Flowers Chinese Academy of Agricultural Sciences Beijing 100081 China Gembloux Agro-Bio Tech University of Liege Liege 4000 Belgium College of Horticulture Northwest A&F University Yangling Shaanxi 712100 China College of Life Sciences Nanjing Agricultural University Nanjing 210095 China

Dear Editor,Gynoecism has been extensively exploited in cucumber breeding. The utilization of a gynoecious line permits earlier pro- duction of hybrids, higher yield, and more concentrated fruit set. In addition, the utilization of a gynoecious line eliminates the need for hand emasculation and reduces the labor cost of crossing （Robinson, 2000）. Therefore, the development of gynoeoious inbred lines is instrumental for cucumber breeding. Gynoecious inbreds can be produced by selection from crosses of monoecious inbreds, or can arise spontaneously from natural variation. However, both methods have disadvantages. For instance, the time-consuming and laborious process of crossing can also lead to the introduction of undesirable traits,

关键词： PLANTS

Control of Corner Separation by Optimized Slot Configuration in a Linear Compressor Cascade

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风机技术 2016年第6期58卷 9-18页

作者： jinjing sun Yangwei Liu Lipeng Lu Xavier OTTAVY School of Energyand Power Engineering Beihang University Laboratoirede Mecaniquedes Fluidesetd’Acoustique Ecole Centralede Lyon

为控制压气机叶片吸力面与端壁处所形成的三维角区分离,本文在叶根处引入了从压力面到吸力面的槽道来控制角区分离流动。基于利用优化算法对叶根处槽道几何的优化结果,本文通过数值模拟和实验来分析槽道在不同进口攻角下对角区分离的控... 详细信息

为控制压气机叶片吸力面与端壁处所形成的三维角区分离,本文在叶根处引入了从压力面到吸力面的槽道来控制角区分离流动。基于利用优化算法对叶根处槽道几何的优化结果,本文通过数值模拟和实验来分析槽道在不同进口攻角下对角区分离的控制效果。本文通过对比原始和开槽叶栅中总压损失、静压升和三维角区分离特征表明叶根处引入的槽道对角区分离有明显的控制效果。

关键词：压气机角区分离叶根开槽被动控制

Dynamic Analysis of Single Pile in Liquefied Soils Considered as Newtonian Fluid

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Open Journal of Geology 2021年第2期11卷 19-37页

作者： jinjing sun Xinlei Zhang Zhihua Wang Hongmei Gao Lian Xu The 3rd Geological Brigade of Jiangsu Geology & Mineral Exploration Bureau Nanjing China Urban Underground Space Research Center Nanjing Tech University Nanjing China

Case histories have shown that the liquefaction-induced soil lateral spreading is one of the main causes of damage to pile foundations subjected to seismic loading. Post-liquefaction soil behaves similarly to a viscous fluid. This study investigated the effect of soil lateral spreading on a single pile based on fluid mechanics in which the liquefied soils were treated as Newtonian fluids. A numerical simulation on a single pile embedded in a fully saturated sandy foundation was conducted and compared with shake table tests. The lateral flow effect and the effect of shear strain rate were discussed. After liquefaction, the acceleration of the foundation shows that there are no obvious spikes and finally reaches a stable state. The presented method can predict the pile response better than p-y curve method. A parametric study was performed to explore the effect of several influence factors on pile behaviors. The results show that the pile head displacement decreases and the maximum bending moment at pile bottom increases with the increase of bending stiffness. With the same pile bending stiffness, the displacement and bending moment of pile increase with the increase of soil viscosity and acceleration amplitude.

关键词： Pile Liquefaction-Induced Lateral Spreading Newtonian Fluid CFD Method

An ACC Oxidase Gene Essential for Cucumber Carpel Development

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Molecular Plant 2016年第9期9卷 1315-1327页

作者： Huiming Chen jinjing sun Shuai Li Qingzhi Cui Huimin Zhang Fengjiao Xin Huaisong Wang Tao Lin Dongli Gao Shenhao Wang Xia Li Donghui Wang Zhonghua Zhang Zhihong Xu Sanwen Huang Hunan Vegetable Research Institute Hunan Academy of Agricultural Sciences Changsha 410125 China Key Laboratory of Biology and Genetic Improvement of Horticultural Crops of the Ministry of Agriculture Sino-Dutch Joint Laboratory of Horticultural Genomicsinstitute of Vegetables and Flowers Chinese Academy of Agricultural Sciences Beijing 100081 China Agricultural Genomic Institute at Shenzhen Chinese Academy of Agricultural Sciences Shenzhen 518120 China Institute of Agricultural Product Processing Chinese Academy of Agricultural Sciences Beijing 100193 China College of Life Sciences Peking University Beijing 100871 China These authors contributed equally to this article

Sex determination in plants gives rise to unisexual flowers that facilitate outcrossing and enhance genetic diversity. In cucumber and melon, ethylene promotes carpel development and arrests sta- men development. Five sex-determination genes have been identified, including four encoding 1-aminocyclopropane-l-carboxylate （ACC） synthase that catalyzes the rate-limiting step in ethylene biosynthesis, and a transcription factor gene CmWIP1 that corresponds to the Mendelian locus gynoecious in melon and is a negative regulator of femaleness. ACC oxidase （ACO） converts ACC into ethylene; how- ever, it remains elusive which ACO gene in the cucumber genome is critical for sex determination and how CmWIP1 represses development of female flowers. In this study, we discovered that mutation in an ACO gene, CsAC02, confers androecy in cucumber that bears only male flowers. The mutation disrupts the enzymatic activity of CsAC02, resulting in 50% less ethylene emission from shoot tips. CsAC02 was ex- pressed in the carpel primordia and its expression overlapped with that of CsACS11 in female flowers at key stages for sex determination, presumably providing sufficient ethylene required for proper CsACS2 expression. CmAC03, the ortholog of CsACO2, showed a similar expression pattern in the carpel region, suggesting a conserved function of CsACO2/CmACO3. We demonstrated that CsWlP1, the ortholog of CmWlP1, could directly bind the promoter of CsAC02 and repress its expression. Taken together, we propose a presumably conserved regulatory module consisting of WlP1 transcription factor and ACO controls unisexual flower development in cucumber and melon.

关键词： cucumber sex determination carpel development ACC oxidase

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五氧化二钒薄膜材料制备方法研究进展

材料导报 2024年第5期38卷 111-119页

作者：杜金晶孙晔朱军李倩王斌刘景田孟晓荣西安建筑科技大学冶金工程学院西安710055 陕西省膜分离技术研究院西安710055

由于V^(5+)的饱和氧化态,五氧化二钒成为钒体系中最稳定的氧化物。作为功能材料,五氧化二钒薄膜在众多科学领域有着巨大的应用潜力,因而受到越来越多的关注。这主要归功于其特殊的层状结构、高能量密度、良好的化学和热稳定性以及优异... 详细信息

由于V^(5+)的饱和氧化态,五氧化二钒成为钒体系中最稳定的氧化物。作为功能材料,五氧化二钒薄膜在众多科学领域有着巨大的应用潜力,因而受到越来越多的关注。这主要归功于其特殊的层状结构、高能量密度、良好的化学和热稳定性以及优异的光学和电学性能。五氧化二钒薄膜的制备方法很多,采用不同的实验方法在不同衬底上制备的五氧化二钒薄膜因化学成分和组织结构差异而造成其电学、光学性能也存在显著的差异。本文详细阐述了五氧化二钒薄膜现有的制备技术,并对五氧化二钒薄膜材料应用的发展趋势进行了展望,以期为五氧化二钒薄膜产业的发展提供参考。

关键词：五氧化二钒薄膜溶胶-凝胶法溅射法喷雾热解法

基于体素症状病变映射方法对急性脑卒中后疲劳症状的研究

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医学研究与战创伤救治 2024年第2期37卷 143-149页

作者：王朋孙文王金晶音大为何野中国科学技术大学附属第一医院(安徽省立医院)影像科合肥230036 中国科学技术大学附属第一医院(安徽省立医院)神经内科合肥230036 南京大学医学院附属金陵医院(东部战区总医院)神经内科南京210002

目的旨在确定急性脑卒中患者中功能性脑损伤与卒中后疲劳(PSF)的相关。方法回顾性分析2019年1月至2022年6月中国科学技术大学附属第一医院(安徽省立医院)连续收治的首次急性缺血性脑卒中患者的临床资料。卒中后疲劳评分采用疲劳严重程... 详细信息

目的旨在确定急性脑卒中患者中功能性脑损伤与卒中后疲劳(PSF)的相关。方法回顾性分析2019年1月至2022年6月中国科学技术大学附属第一医院(安徽省立医院)连续收治的首次急性缺血性脑卒中患者的临床资料。卒中后疲劳评分采用疲劳严重程度量表进行评分。所有参与者均由3位高年资神经内科医师进行评估。患者均进行3.0T磁共振全脑扫描,包括弥散加权成像。人工勾画脑梗死病变区域,制作成相应图像模板。采用基于体素病变症状映射图谱(VLSM)来研究病变的位置与卒中后疲劳的发生和严重程度之间的关系。通过翻转对侧病变,也进行同样的分析,并且采用多变量逻辑回归分析来验证功能性脑损伤和PSF的相关性。结果在361例急性卒中患者中,142例(39.3%)患者在急性期被诊断为疲劳,116例(35.8%)患者在卒中后6个月随诊时被诊断为疲劳。VLSM分析显示,在6个月的随访中,右侧丘脑的聚集性病变与PSF的发生和严重程度显著相关(P<0.05)。与对侧病灶翻转分析相比,在卒中的急性期没有发现明显的聚集性疾病。翻转分析结果无统计学意义(P=0.311)。多变量逻辑回归证实,右丘脑病变负荷(OR=2.67,95%CI 1.46~4.88)是6个月PSF的预测因素。结论右侧丘脑病变增加了卒中6个月后出现卒中后疲劳症状的风险。

关键词：基于体素的病变-症状映射神经影像学卒中后疲劳急性缺血性卒中病变位置