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绿色财政抑制了碳排放吗?

财政科学 2024年第1期97卷 48-61页

作者：张晖李光龙李增来铜陵学院金融学院安徽大学经济学院

绿色财政对实现“双碳”目标具有重要意义。本文选取2007—2021年省级面板数据,以绿色财政收入、绿色财政支出为解释变量,碳排放量为被解释变量构建双向固定效应模型。结果显示,绿色财政收入比重增加促进碳排放增加,绿色财政支出比重增... 详细信息

绿色财政对实现“双碳”目标具有重要意义。本文选取2007—2021年省级面板数据,以绿色财政收入、绿色财政支出为解释变量,碳排放量为被解释变量构建双向固定效应模型。结果显示,绿色财政收入比重增加促进碳排放增加,绿色财政支出比重增加显著抑制碳排放。通过中介效应分析,本文认为绿色财政收入对碳排放缺少“硬约束”,反而促进了火力发电量、粗钢产量和原煤产量增加,进而导致碳排放增长;绿色财政支出的增长促进了我国能源消费结构转型,提升森林覆盖率,降低能耗,有效减少了二氧化碳的排放。基于此,本文提出充分发挥绿色财政减排作用的政策建议。

关键词：绿色财政碳排放绿色财政收入绿色财政支出

数字经济、产业结构升级与地区绿色发展——以长三角地区为例

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重庆理工大学学报（社会科学） 2024年第8期38卷 90-106页

作者：李光龙张洁仪安徽大学经济学院安徽合肥230601

抓住“数字经济”的契机,推动地区绿色发展,对于促进中国经济社会实现人与自然和谐共生的现代化、实现全方位绿色转型目标具有重要的现实意义。基于2011—2021年长三角27个城市的数据测算数字经济发展水平,并将其与地区绿色发展数据相结... 详细信息

抓住“数字经济”的契机,推动地区绿色发展,对于促进中国经济社会实现人与自然和谐共生的现代化、实现全方位绿色转型目标具有重要的现实意义。基于2011—2021年长三角27个城市的数据测算数字经济发展水平,并将其与地区绿色发展数据相结合,实证分析数字经济对地区绿色发展的影响。研究结果显示:数字经济能够有效推动城市绿色发展。机制分析揭示:数字经济通过促进产业结构升级这一间接路径推动绿色发展;数字经济具有空间外溢效应,但对邻近地区的绿色发展并未表现出显著促进作用。异质性分析表明:从数字经济不同维度的分析来看,各维度均对地区绿色发展产生显著的促进作用,其中数字基础设施建设的促进效果最为显著;从地区资源禀赋的角度来看,非资源型城市的数字经济发展能有效推动地区绿色发展;而资源型城市的数字经济发展则对地区绿色发展存在一定的抑制作用。因此,为进一步推动地区经济绿色转型发展,应积极推动数字经济的发展,充分发挥政府的主导作用,加快数字基础设施建设,构建完善的企业跨地区融合机制,提升产业结构水平,因地制宜实施地区差异化发展战略。

关键词：数字经济绿色发展产业结构升级资源禀赋长三角

基于多级索引表的金融业务数据库精准查询方法

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安阳工学院学报 2024年第2期23卷 60-64页

作者：何远景李光龙安徽工业经济职业技术学院财经学院合肥230000 安徽大学经济学院合肥230000

为提升金融业务数据库查询精准度和效率,设计了一种基于多级索引表的金融业务数据库精准查询方法。首先,构建多级索引的逻辑结构,设计多级索引表构建过程;其次,进行金融业务数据特征融合,为金融业务数据查询准备好数据条件;最后,设计金... 详细信息

为提升金融业务数据库查询精准度和效率,设计了一种基于多级索引表的金融业务数据库精准查询方法。首先,构建多级索引的逻辑结构,设计多级索引表构建过程;其次,进行金融业务数据特征融合,为金融业务数据查询准备好数据条件;最后,设计金融业务数据库精准查询算法,完成基于多级索引表的金融业务数据库精准查询方法设计的全过程。实验结果表明:设计方法的金融业务数据库查询精准度均在90%以上,最高可达到98%,而且查询所需时间最短仅为5.25 s。本设计方法的适用性极强,具有较好的应用前景,以期能够为金融业务数据的精准高效查询提供参考借鉴。

关键词：多级索引表金融业务数据库数据查询精准查询

Ti-44Al-6Nb-2Fe合金低温超塑性及高温拉伸组织演化

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材料导报 2024年第1期38卷 171-176页

作者：董书琳曲迎东陈瑞润郭景杰王琪李广龙张伟于波沈阳工业大学材料科学与工程学院沈阳110870 哈尔滨工业大学材料科学与工程学院哈尔滨150001 沈阳铸造研究所有限公司高端装备轻合金铸造技术国家重点实验室沈阳110027

为改善高Nb TiAl基合金的热变形能力,本研究利用Fe部分替代高Nb TiAl基合金中的Nb,熔炼制备新型高Nb含Fe的Ti-44Al-6Nb-2Fe合金。首先对合金铸锭进行包套锻造,再对锻造合金在800~1 000℃、1×10^(-4)s^(-1)初始应变速率下进行高温拉伸实... 详细信息

为改善高Nb TiAl基合金的热变形能力,本研究利用Fe部分替代高Nb TiAl基合金中的Nb,熔炼制备新型高Nb含Fe的Ti-44Al-6Nb-2Fe合金。首先对合金铸锭进行包套锻造,再对锻造合金在800~1 000℃、1×10^(-4)s^(-1)初始应变速率下进行高温拉伸实验,对合金的高温拉伸变形行为和组织演化行为进行研究。结果表明,合金中含有较多B2相,占30%~40%,随高温拉伸温度升高,合金动态再结晶作用增强,位错减少,晶粒尺寸增大,晶粒长径比降低,这些组织演化特征与合金的应力-应变状态和热变形能力提升相对应。合金在800℃和850℃拉伸变形时,B2相为硬脆相,B2相及B2/γ相界面处的应力集中导致该区域形成大量裂纹及孔洞(800℃时孔洞百分比为14.5%),延伸率较低(800℃时延伸率为123.1%),甚至发生提早断裂,试样断裂处颈缩现象明显;合金在900℃拉伸变形时,应变速率敏感指数m=0.284,延伸率明显提高(900℃时延伸率为163.0%),试样断裂处仍有颈缩现象;合金在950℃和1 000℃拉伸变形时,B2相转化为“软”相,发挥了很好的应力-应变协调作用,B2相与γ相之间发生了广泛的晶界滑动,组织中几乎无裂纹孔洞出现,延伸率陡然提高(950℃时延伸率为307.9%),试样断裂处无颈缩现象,合金具备超塑性,但该合金在TiAl基合金中属于低温超塑性。较高的B2相含量及其所发挥的优异的应力-应变协调作用是该合金具备低温超塑性的重要原因和特色之处。

关键词：钛铝基合金高温拉伸超塑性组织演化电子背散射衍射

Image format pipeline and instrument diagram recognition method based on deep learning

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Biomimetic Intelligence & Robotics 2024年第1期4卷 36-44页

作者： Guanqun Su Shuai Zhao Tao li Shengyong liu Yaqi li guanglong Zhao Zhongtao li Shandong Qingniao IIoT Co. ltd.Jinan 250014China Jinan Housing and Urban-Rural Development Bureau Jinan 250012China State Grid Shandong Electric Extrahigh Voltage Company Jinan 250018China School of Information Science and Engineering University of JinanJinan 250022China

In this study,we proposed a recognition method based on deep artificial neural networks to identify various elements in pipelines and instrumentation diagrams(P&ID)in image formats,such as symbols,texts,and ***,the P&ID image format is recognized manually,and there is a problem with a high recognition error rate;therefore,automation of the above process is an important issue in the processing plant *** China National Offshore Petrochemical Engineering *** the image set used in this study,which contains 51 P&ID drawings in the *** converted the PDF P&ID drawings to PNG P&IDs with an image size of 8410×*** addition,we used labeling software to annotate the images,divided the dataset into training and test sets in a 3:1 ratio,and deployed a deep neural network for *** method proposed in this study is divided into three *** first step segments the images and recognizes symbols using YOLOv5+*** second step determines text regions using character region awareness for text detection,and performs character recognition within the text region using the optical character recognition *** third step is pipeline recognition using YOLOv5+*** symbol recognition accuracy was 94.52%,and the recall rate was 93.27%.The recognition accuracy in the text positioning stage was 97.26%and the recall rate was 90.27%.The recognition accuracy in the character recognition stage was 90.03%and the recall rate was 91.87%.The pipeline identification accuracy was 92.9%,and the recall rate was 90.36%.

关键词： Deep learning Image processing Piping and instrumentation Object recognition Pipeline recognition

Cloning and Drought Resistance Analysis of Soybean GmHsps_p23-like Gene

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Phyton-International Journal of Experimental Botany 2022年第6期91卷 1183-1198页

作者： Yuzhe Zhang guanglong li Shaowang Hu Jinfeng liu Yushi Jiang Siyan liu Shuyan Guan Jing Qu Dan Yao Andi Shi Yixuan liu College of life Sciences Jilin Agricultural UniversityChangchun130118China College of Agronomy Jilin Agricultural UniversityChangchun130118China

Soybean(Glycine max(L.)Merr.)is an important cultivated crop,which requires much water during its growth,and drought seriously affects soybean *** have shown that the expression of small heat shock proteins can enhance drought resistance,cold resistance and salt resistance of *** this experiment,soybean GmHsps_p23-like gene was successfully cloned by RT-PCR,the protein encoded by the GmHsps_p23-like gene was subjected to bioinformatics analysis,and the pCAMBIA3301-GmHsps_p23-like overexpression vector and pCBSG015-GmHsps_p23-like gene editing vector were ***-mediated method was used to transform soybeans to obtain positive ***-PCR detection,rehydration experiment and drought resistance physiological and biochemical index detection were performed on the T2 generation positive transgenic soybean plants identified by PCR and Southern *** results showed that the overexpression vector plant GmHsps_p23-like gene expression *** rehydration,the transgenic overexpression plants returned to normal growth,and the damage to the plants was *** drought stress,the SOD and POD activities and the PRO content of the transgenic overexpression plants increased,while the MDA content *** reverse was true for soybean plants with genetically modified editing *** drought resistance of the overexpressed soybeans under drought stress was higher than that of the control group,and had a stronger drought *** showed that the expression of soybean GmHsps_p23-like gene can improve the drought resistance of *** cloning and functional verification of soybean GmHsps_p23-like gene had not been reported *** is the first time that PCR technology has been used to amplify the soybean GmHsps_p23-like gene and construct an expression vector for this *** research has laid the foundation for transgenic technology to improve plant drought resistance and cultivate new drought-resistant tran

关键词： Soybean small heat shock protein CRISPR/Cas9 drought resistance

Improved multi-orientation dispersion of short carbon fibers in aluminum matrix composites prepared with square crucible by mechanical stirring

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Journal of Materials Science & Technology 2020年第5期40卷 81-87页

作者： guanglong li Yingdong Qu Yaohua Yang Qiwen Zhou Xishi liu Rongde li School of Materials Science and Engineering Shenyang University of TechnologyShenyang110870China School of Materials Science and Engineering Harbin Institute of TechnologyHarbin150001China

In order to improve the strength of short carbon fibers reinforced aluminum matrix(Csf/Al)composite,the dispersion of short carbon fibers with multi-orientation was controlled with a square crucible by mechanical *** three-dimensional flow field models of liquid aluminum melt in the square/round crucibles were established and calculated,and the results were *** calculated results show that turbulent flow could be induced both in the square and round crucible,while the non-axisymmetric structure of the square crucible results in higher turbulent kinetic energy in the ***,the uniformity and multi-orientation dispersion of the short fibers can be improved by the intensive turbulent flow in the square crucible,which will be increased by increasing the rotational *** distribution of the short carbon fibers in the aluminum matrix prepared under different rotation velocities in square crucible was experimentally *** the increase of stirring velocity,the multi-orientation dispersion of the short fibers in the composites increased *** experimental results are consistent with the calculation *** tensile testing results show that the strength of the Csf/Al composite can reach 172 MPa when the rotational velocity is 1000 rpm,and it is 48.3%higher than that prepared by the round crucible under the same conditions,which results from the improved multi-orientation dispersion of short carbon fibers in aluminum matrix.

关键词： Square crucible Short carbon fibers Aluminum matrix composite Mechanical stirring Multi-orientation dispersion

Crosstalk between glioblastoma and tumor microenvironment drives proneural–mesenchymal transition through ligand-receptor interactions

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Genes & Diseases 2024年第2期11卷 874-889页

作者： Yancheng Lai Xiaole Lu Yankai liao Pei Ouyang Hai Wang Xian Zhang guanglong Huang Songtao Qi Yaomin li Department of Neurosurgery Institute of Brain DiseaseNanfang HospitalSouthern Medical UniversityGuangzhouGuangdong 510515China Laboratory for Precision Neurosurgery Nanfang HospitalSouthern Medical UniversityGuangzhouGuangdong 510515China

Glioblastoma(GBM)is the most common intrinsic and aggressive primary brain tumor in adults,with a median survival of approximately 15 *** heterogeneity is considered responsible for the treatment resistance and unfavorable ***-mesenchymal transition(PMT)represents GBM malignant progression and recurrence,which might be a breakthrough to understand GBM heterogeneity and overcome treatment *** is a complicated process influenced by crosstalk between GBM and tumor microenvironment,depending on intricate ligand-receptor *** this review,we summarize the autocrine and paracrine pathways in the GBM microenvironment and related ligand-receptor interactions inducing *** also discuss the current therapies targeting the PMT-related autocrine and paracrine ***,this review offers a comprehensive understanding of the failure of GBM-targeted therapy and ideas for future tendencies of GBM treatment.

关键词： Autocrine Glioblastoma ligand-receptor interaction Microenvironment Paracrine Proneural-mesenchymal transition

Water bridges are essential to neonicotinoids: Insights from synthesis,bioassay and molecular modelling studies

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Chinese Chemical Letters 2019年第1期30卷 255-258页

作者： Chengchun Zhu guanglong li Keya Xiao Xusheng Shao Jiagao Cheng Zhong li Shanghai Key Laboratory of Chemical Biology School of Pharmacy East China University of Science and Technology Shanghai Collaborative Innovation Center for Biomanufacturing Technology

Water-bridged H-bonds have been observed in many cases of ligand-receptor recognitions. To explore the roles of water bridges in the binding of neonicotinoids with receptors, twenty-four neonicotinoid compounds with nine fragments, including 1 H-1,2,3-triazole, CN, COOMe, CONHNH_2, CONHMe, NO_2,NH_2, NHCOMe and NHCSNH_2 were synthesized and evaluated, of which, compounds with cyano group showed the best activities against Aphis craccivora. Accordingly, the cyano group is the optimal fragment mimicking the water bridge. Two cyano-substituted cis-nitromethylene compounds display good insecticidal activities, whereas the LC_(50) values are lower than those of their corresponding *** study showed that the cyano group acts only as H-bond acceptor, while the water bridge can act as both donor and acceptor. It revealed that the water bridge might be stable in the active site and was not suitable to be replaced by other groups. The findings illustrated that the water bridge is necessary for high insecticidal activities of neonicotinoids, which should be also helpful in better understanding the binding mode of neonicotinoids.

关键词： Neonicotinoids Water bridge Insecticidal activity Cyano group Molecular design