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群体饲养生命表:资料分析理论与转化为个体生命表的方法

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昆虫学报 2024年 2-17页

作者：马敏任芳旭王怡孔维娜魏明峰齐心 Mehmet Salih ?zg?K?E 马瑞燕山西农业大学植物保护学院农业有害生物综合治理山西省重点实验室山西农业大学棉花研究所山东农业大学植物保护学院福建农林大学应用生态研究所闽台作物有害生物生态防控国家重点实验室福建省农业科学院农业质量标准与检测技术研究所 Department of Plant Protection Faculty of AgricultureVan Yüzüncü Yil University

本文介绍群体饲养生命表的资料分析基本原理及转换为个体生命表的方法。群体饲养生命表的记录实际上即年龄-龄期两性生命表的N矩阵,而每日所有雌虫的总繁殖记录即为Ftotal矩阵。利用N矩阵与Ftotal矩阵可以计算S矩阵、F矩阵及各种群参数... 详细信息

本文介绍群体饲养生命表的资料分析基本原理及转换为个体生命表的方法。群体饲养生命表的记录实际上即年龄-龄期两性生命表的N矩阵,而每日所有雌虫的总繁殖记录即为Ftotal矩阵。利用N矩阵与Ftotal矩阵可以计算S矩阵、F矩阵及各种群参数。以桃蚜Myzus persicae和马铃薯块茎蛾Phthorimaea operculella为例,阐明群体饲养生命表分析的理论依据,证明群体饲养生命表得到的各项参数可靠,并介绍了一种将群体饲养生命表转化为个体生命表的方法。比较了群体饲养生命表和个体饲养生命表的特点。利用群体饲养研究昆虫生命表可以节省大量人力、时间与经费,群体饲养生命表可用于设计大量饲养生物防治天敌、鱼与鸟的饲料昆虫以及可供人类食用的昆虫。

关键词：年龄龄期两性生命表群体饲养电脑模拟种群预测生物防治

Exploration and Practice of the Digital Transformation and Upgrading Paths for Civil Engineering Majors

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Journal of Contemporary Educational Research 2024年第7期8卷 30-34页

作者： Yanan Fu Jinhui Zhou Xinna zhu Jianhua Zou School of Civil Engineering Chongqing Three Gorges UniversityChongqing 404100China

This article examines the pathway to digital transformation and upgrading in undergraduate institutions,using the civil engineering program at Chongqing Three Gorges University as a case study,focusing on six key areas:developing a high-quality digital talent training program for civil engineering;assembling diverse resources to create a digital,multi-scenario open learning environment that encompasses teaching,research,and practical training for civil engineering undergraduates;piloting innovative digital teaching models for civil engineering undergraduates;crafting a new model for digital resource provision,utilizing self-developed and specialized resources;devising assessment methods and ongoing improvement strategies based on the achievement of students’digital competencies;and devising a new,three-dimensional,multi-modal teaching evaluation system through intelligent data capture and analysis.

关键词： Digital transformation Civil engineering Local undergraduate institutions

The potential mechanism and clinical application value of remote ischemic conditioning in stroke

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Neural Regeneration Research 2025年第6期20卷 1613-1627页

作者： Yajun zhu Xiaoguo Li Xingwei Lei Liuyang Tang Daochen Wen Bo Zeng Xiaofeng Zhang Zichao Huang Zongduo Guo The First Affiliated Hospital of Chongqing Medical University ChongqingChina

Some studies have confirmed the neuroprotective effect of remote ischemic conditioning against stroke. Although numerous animal researches have shown that the neuroprotective effect of remote ischemic conditioning may be related to neuroinflammation, cellular immunity, apoptosis, and autophagy, the exact underlying molecular mechanisms are unclear. This review summarizes the current status of different types of remote ischemic conditioning methods in animal and clinical studies and analyzes their commonalities and differences in neuroprotective mechanisms and signaling pathways. Remote ischemic conditioning has emerged as a potential therapeutic approach for improving stroke-induced brain injury owing to its simplicity, non-invasiveness, safety, and patient tolerability. Different forms of remote ischemic conditioning exhibit distinct intervention patterns, timing, and application range. Mechanistically, remote ischemic conditioning can exert neuroprotective effects by activating the Notch1/phosphatidylinositol 3-kinase/Akt signaling pathway, improving cerebral perfusion, suppressing neuroinflammation, inhibiting cell apoptosis, activating autophagy, and promoting neural regeneration. While remote ischemic conditioning has shown potential in improving stroke outcomes, its full clinical translation has not yet been achieved.

关键词： Akt apoptosis autophagy cerebral perfusion cerebral vascular stenosis clinical transformation hemorrhagic stroke ischemic stroke neuroinflammation neuroprotection Notch1 PI3K remote ischemic conditioning stroke

Influence of recycled polyethylene terephthalate fibres on plastic shrinkage and mechanical properties of concrete

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Frontiers of Structural and Civil Engineering 2022年第6期16卷 792-802页

作者： NecatÖZAŞIK Özgür EREN Department of Civil Engineering Eastern Mediterranean UniversityMersin 99628Turkey

Polyethylene terephthalate bottles production has drastically increased year after year due to high versatility of polyethylene terephthalate plastics and considerable consumption of *** tandem with that increase,the major concern of society has been the improper disposal of this non-biodegradable material to the *** deal with this concern,recycled polyethylene terephthalate bottles were incorporated in concrete as fibre reinforcements in this *** objective of this research is to evaluate the mechanical properties of recycled polyethylene terephthalate fibre reinforced concrete(RPFRC)in comparison with control concrete without *** terephthalate fibres with three different diameters(0.45,0.65,and 1.0 mm)and two lengths(20 and 30 mm)were added at various proportions(0.5%,1.0%,1.5%and 2.0%)by volume of concrete in order to determine the effect of fibres initially on compressive,flexural and splitting tensile strengths of *** results revealed that none of the fibres have detrimental effects up to 1%volume fraction,however further addition caused slight reductions on mechanical properties in some *** shrinkage resistance and impact resistance tests were also performed according to related *** terephthalate fibres were observed to have marked improvements on those *** a good performance could be attributed primarily to the bridging effect of fibres.

关键词： recycled PET fibre-reinforced concrete mechanical properties plastic shrinkage impact energy

Development and actualization of brownfields database with the use of unmanned aerial vehicles-the case of Upper Silesia,Poland

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International Journal of Coal Science & Technology 2022年第6期9卷 168-177页

作者： Aleksandra zgórska Adam Hamerla Jan Bondaruk Pawel Zawartka Department of Water Protection Central Mining InstitutePlac Gwarków 144-166 KatowicePoland Deputy Director for Environmental Engineering Central Mining Institute Plac Gwarkow 144-166 KatowicePoland

This paper presents the assumptions and the preliminary results of the project entitled"Extension of the system for man-agement of post-mining areas in the Silesian province-OPI TPP 2.0".The overall objective of the project is to develop and implement a new e-service in the form of an open-access information system on post-mining areas in the Silesia *** range of information and tools planned to be made available is dedicated to assessing the possibilities and potential for economic and social reuse of these *** basic and extremely important stage of the project was to identify and collect data on post-industrial sites located in the Silesia *** information contained in this article illustrates the activities that were carried out in the initial phase of the project in which unmanned aerial vehicles(UAV)were used to identify and acquire information on brownfields(including post-mining sites)entered into the developed common *** article assesses the possibility of using drones in an enterprise of such a large scale and also points out the advantages of using this *** article describes the methodology and scope of work related to the acquisition of data that can be collected using unmanned aerial vehicle(UAV)covering surface infrastructure and land use of brownfields,allowing for the identification of negative phenomena on their site as well as monitoring of naturally occurring *** on fieldworks experience and the results of numerous analyses carried out for different types of brownfields(***-mining areas,former transport bases,settling ponds,etc.),paper presents the advantages and benefits of drones(UAN)over other data sources used to monitor changes in an *** article is based on the results of an inventory of over 600 brownfields located in Upper Silesia region(Silesia Voivodeship,Poland).

关键词： Unmanned aerial vehicle Brownfields Post-industrial sites Databases Drones

新冠疫情背景下服务设施关停对暴力犯罪的影响

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地理研究 2024年第7期43卷 1827-1849页

作者：龙冬平朱家辉柳林昌佳雨广州大学地理科学与遥感学院公共安全地理信息分析中心广州510006 辛辛那提大学地理系辛辛那提OH45221 城乡院(广州)有限公司广州511300

抑制犯罪的高发突发是国家社会治安的重大需求。新冠疫情防控影响了城市各类服务设施的运营状况,由此可能带来犯罪主体的日常活动变化,因此它可以看做是一场大范围的犯罪预防“自然实验”。论文以zg市为例,利用STL时间序列分解和局部差... 详细信息

抑制犯罪的高发突发是国家社会治安的重大需求。新冠疫情防控影响了城市各类服务设施的运营状况,由此可能带来犯罪主体的日常活动变化,因此它可以看做是一场大范围的犯罪预防“自然实验”。论文以zg市为例,利用STL时间序列分解和局部差分莫兰指数等方法,分析“疫情前”和“疫情中”zg市暴力犯罪的时空格局及集聚变化特征;同时基于日常活动和社会失序等理论,采用负二项回归模型探究疫情防控背景下服务设施关停对暴力犯罪的影响;并结合地理加权泊松回归模型进一步分析服务设施的影响在空间上的异质作用。研究发现:(1)zg市暴力犯罪的数量总体趋向减少。即“疫情前”暴力犯罪平缓下降,而“疫情中”则急剧下降。(2) zg市暴力犯罪在“疫情前”和“疫情中”均有明显的集聚特征,但这两个时期的犯罪热点发生了明显变化。“疫情前”和“疫情中”犯罪热点集中在中心城区;但与“疫情前”相比,“疫情中”犯罪热点的面积大幅减少且分散。(3)基于局部差分莫兰指数对“疫情前”和“疫情中”犯罪变化特征进行探测,发现“疫情中”zg市中心城区变为暴力犯罪减少的区域连片,形成“低低”集聚区,而其周边区域变成暴力犯罪增加的区域连片,形成“高高”集聚区。(4)与“疫情前”相比,本文验证了“疫情中”各类服务设施对暴力犯罪的影响均有所减弱。例如,餐饮店、商业街、网吧对暴力犯罪的促进作用出现了减弱,公交站、学校对暴力犯罪的抑制作用也有所减弱。最后,进一步发现餐饮店、公交站更受新冠疫情关停政策的影响,与“疫情前”相比,“疫情中”餐饮店和公交站保持正常运营的数量和分布在空间上发生了较大变化,从而对暴力犯罪的减少产生了较大影响。

关键词：暴力犯罪服务设施犯罪变化新冠疫情 zg市

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数字化提升企业绿色创新质量的机制研究

首都经济贸易大学学报 2024年第1期26卷 18-33页

作者：朱小刚刘博刘春年南昌大学公共政策与管理学院江西南昌330031

选取中国A股上市公司的面板数据,运用多元回归分析模型,考察企业数字化对其绿色创新质量的影响,以及风险承担与市场竞争对二者之间关系的中介和调节机制。研究结果显示,企业数字化对其绿色创新质量具有提升作用,风险承担在企业数字化与... 详细信息

选取中国A股上市公司的面板数据,运用多元回归分析模型,考察企业数字化对其绿色创新质量的影响,以及风险承担与市场竞争对二者之间关系的中介和调节机制。研究结果显示,企业数字化对其绿色创新质量具有提升作用,风险承担在企业数字化与绿色创新质量之间发挥部分中介作用,市场竞争对企业数字化与其绿色创新质量之间关系具有正向调节作用。进一步的分析结果显示:与民营企业相比,国有企业数字化对绿色创新质量的促进作用更大,且对中央企业的促进作用比地方国有企业大;与规模较小企业相比,规模较大企业数字化对绿色创新质量的促进作用更大;与处于衰退期的企业相比,处于成长期和成熟期的企业数字化对绿色创新质量的促进作用更大。研究结论能够为企业的数字化战略安排和政府的市场竞争环境培育提供有益的借鉴和启示。

关键词：企业数字化绿色创新质量风险承担市场竞争生命周期

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Positron Annihilation Study of the Quenched-in Vacancies in CuZnAl Alloys

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Journal of Materials Science & Technology 1995年第6期11卷 409-414页

作者： WEI, zg YANG, DZ Dalian Univ of Technology Dalian China

The excess vacancies in ternary CuZnAl and Ti-doped CuZnAl alloys quenched from temperatures between 673 K and 1223 K, and the behaviour of the quenched-in vacancies on postquench aging in martensite phase have been studied by Doppler broadening measurements. It has been found that adding Ti to the alloys results in the formation of vacancy-Ti solute atom complexes which lowers the mobility of the vacancies. In the Ti-free alloy, the prominent changes in the lineshape S-parameter during the early stage of martensite aging have evidenced the occurrence of vacancy migration to sinks, clustering or vacancy. related atomic distortion. The role of the vacancies in martensite stabilization has been discussed.

关键词： Intermetallics

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基于专家反馈的广义孤立森林异常检测算法

计算机应用研究 2024年第1期41卷 88-93页

作者：祝诚勇黄鹏翔李理敏温州大学电气与电子工程学院浙江温州325035

针对孤立森林算法无法检测与轴平行的局部异常点以及树结构无法动态更新等问题,提出了一种基于专家反馈的广义孤立森林异常检测算法。首先,将数据映射在单位特征向量上,从映射区域内选择分割点划分数据空间,重复此操作构造出一棵广义孤... 详细信息

针对孤立森林算法无法检测与轴平行的局部异常点以及树结构无法动态更新等问题,提出了一种基于专家反馈的广义孤立森林异常检测算法。首先,将数据映射在单位特征向量上,从映射区域内选择分割点划分数据空间,重复此操作构造出一棵广义孤立树;然后,给广义孤立森林中每棵树的叶节点引入权重,综合考虑子空间划分次数和子空间内样本数量对数据异常分数的影响;最后,计算每个数据的加权异常分数,并选择异常分数较大的数据交由专家进行批量标注,算法根据标注结果更新叶节点权重,从而实现树结构的动态调整。实验结果表明,该算法在7个数据集中专家标注真实异常的数量优于其他同类树结构算法,并在12个数据集中平均准确率比孤立森林、扩展孤立森林和广义孤立森林分别提升了38.952%、49.144%和49.144%。

关键词：异常检测孤立森林动态更新专家反馈