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基于前沿科技的新质生产力发展路径探析:以深度科技创新为视角

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创新科技 2024年第6期24卷 11-19页

作者：李春成天津市自然辩证法研究会天津300250

世界知识产权组织和欧洲风险投资平台均连续发布了有关深度科技的报告,这表明深度科技理念在国际上引起了一定的关注。面对后疫情时代严峻的国际经济环境,世界各国都在寻求新的经济增长路径。在新一轮科技革命和产业变革加速演进的背景... 详细信息

世界知识产权组织和欧洲风险投资平台均连续发布了有关深度科技的报告,这表明深度科技理念在国际上引起了一定的关注。面对后疫情时代严峻的国际经济环境,世界各国都在寻求新的经济增长路径。在新一轮科技革命和产业变革加速演进的背景下,开展深度科技创新有可能成为我国加强前沿科技研发转化、推动新质生产力发展的重要路径之一。作为一个动态概念,深度科技创新呈现出许多值得关注的特点,包括更加强调前沿性科技领域的引领作用、更加依赖于基础科学和技术科学的原理性突破、更加注重高水平创业在科技成果转化中的作用等。深度科技创新面临6个重要发展趋势:深度科技领域突破难度加大且更多偏向于技术科学和技性科学领域的突破;深度科技创新越来越依赖创新的制度建设与生态体系升级;高能级、复合化的创新主体越来越成为深度科技创新的关键要素;深度科技创新更加依赖于创新投资相关主体;深度科技商业化对技术知识基础、创新创业工具和平台的依赖度更高;深度科技创新将成为我国第五次创业潮的核心内容。建议从4个方面大力推动深度科技创新,促进新质生产力发展:首先,促进创业式创新和创新式创业的双向互动;其次,注重投资衔接,完善接力棒型投资体系;再次,优化科技创新服务,加速创新与产业生态升维;最后,深化创新基础制度改革与加强科技创新文化建设。

关键词：深度科技创新前沿科技新质生产力体系能力路径

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新兴领域科技伦理的技术治理路径:内容框架与政策建议

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青海科技 2024年第1期31卷 1-5页

作者：李春成天津市自然辩证法研究会天津300250

包括人工智能、合成生物等新兴领域的伦理治理既需要传统治理方式,也需要探索“以技治技”等新的治理方式。文章探索了包括建构重点新兴领域可信技术体系、大力发展新兴领域网络监测等线上适时治理技术、加强新兴领域的安全保障技术开... 详细信息

包括人工智能、合成生物等新兴领域的伦理治理既需要传统治理方式,也需要探索“以技治技”等新的治理方式。文章探索了包括建构重点新兴领域可信技术体系、大力发展新兴领域网络监测等线上适时治理技术、加强新兴领域的安全保障技术开发与应用等技术治理路径,并提出了加强规划和政策引导、促进新兴领域伦理治理技术的进步等政策建议。

关键词：新兴领域科技伦理治理路径 “以技治技”

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连退工艺对DC07超低碳钢组织性能的影响

轧钢 2024年第1期41卷 71-74,111页

作者：李春诚柴冬李科龙姜乐朋马亮本钢集团有限公司技术中心辽宁本溪117000 先进汽车用钢开发与应用技术国家地方联合工程实验室辽宁本溪117000 本钢板材股份有限公司市场营销中心汽车钢销售部辽宁本溪117000

连续退火工艺对DC07超低碳钢的力学性能具有重要影响。采用奥钢联连续退火模拟试验机,研究了退火温度、缓冷温度、快冷冷速等连退工艺参数对DC07超低碳钢组织性能的影响。结果表明:在830~860℃退火温度下,DC07超低碳钢的金相组织均为铁... 详细信息

连续退火工艺对DC07超低碳钢的力学性能具有重要影响。采用奥钢联连续退火模拟试验机,研究了退火温度、缓冷温度、快冷冷速等连退工艺参数对DC07超低碳钢组织性能的影响。结果表明:在830~860℃退火温度下,DC07超低碳钢的金相组织均为铁素体,晶粒尺寸随着退火温度的升高而逐渐增大,相对分布较为均匀;随着退火温度的升高,DC07超低碳钢的屈服强度和抗拉强度逐渐降低,断后伸长率、n值以及r值逐渐升高;随着缓冷温度的升高,DC07超低碳钢的屈服强度和抗拉强度降低,断后伸长率和r值增加,n值几乎没有变化;随着快冷冷速的增加,DC07超低碳钢的力学性能几乎没有变化。

关键词： DC07超低碳钢连续退火退火温度缓冷温度快冷冷速组织性能

Effects of rare earth oxide additives on the thermal behaviors of aluminum nitride ceramics

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Rare Metals 2009年第6期28卷 596-599页

作者： YAO Yijun WANG ling li chuncheng JIANG Xiaolong QIU Tai School of Mathematics and Physics Nanjing University of Information and Science Technology Nanjing 210044 China College of Materials Science and Engineering Nanjing University of Technology Nanjing 210009 China

The effects of Y2O3 and Er2O3 on the sintering behaviors, thermal properties and microstructure of A1N ceramics were investigated. The experimental results show that the sintering temperature can be decreased; the relative density and thermal behavior can be improved by adding rare earth oxide in A1N ceramics. For A1N ceramics with 3 wt.% Er2O3 additive, the relative density is 98.8%, and the thermal conductivity reaches 106 W.m^-1.K^-1. The microstructure research found that no obvious aluminum erbium oxide was found in A1N ceramics doped with 3 wt.% Er203, which favored the improvement of the thermal conductivity of A1N ceramics.

关键词： alumina nitride rare earth oxide thermal behavior sintering

结合LDA和PCA的中国设计之都文化产业政策比较分析研究——以2006-2023年已发布政策为例

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中国物价 2024年第3期 86-89,94页

作者：胡闻曦王军杨蓓李纯诚武汉理工大学艺术与设计学院武汉理工大学艺术与设计学院党支部

政策与产业发展关系密切,因此本文以中国设计之都(北京、上海、深圳、武汉)为研究对象,采用LDA文本分析探讨2006-2023年发布的文化产业政策的政策特征与政策主题,结合PCA技术定量分析政策效果。研究验证了文化产业政策与效果的高相关性... 详细信息

政策与产业发展关系密切,因此本文以中国设计之都(北京、上海、深圳、武汉)为研究对象,采用LDA文本分析探讨2006-2023年发布的文化产业政策的政策特征与政策主题,结合PCA技术定量分析政策效果。研究验证了文化产业政策与效果的高相关性,发现研究对象普遍存在文化内涵模糊、政策效果反馈不畅和地区间差距等问题。基于此,本文提出制定统一产业分类标准、建立评估机制、加强地区合作等建议,以提升政策的科学性和实效性。研究结果对文化产业政策的制定和实施提供了有益的参考,有助于更好地推动文化产业的可持续发展。

关键词：文化产业政策 LDA主题模型设计之都主成分分析

汽车用高强度双相钢的化学成分和退火温度研究

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金属加工（热加工） 2024年第4期 19-23页

作者：李春诚陈宇杨波李科龙姜乐朋本钢集团有限公司技术中心辽宁本溪117000 先进汽车用钢开发与应用技术国家地方联合工程实验室辽宁本溪117000

实验室条件下设计了两种不同成分的汽车用高强度双相钢,通过微观组织和力学性能对比分析,确定适合现有退火生产线的成分,并采用奥钢联VAI退火热模拟试验机研究了退火温度对组织和性能的影响。试验结果表明:两种化学成分的试验钢均满足... 详细信息

实验室条件下设计了两种不同成分的汽车用高强度双相钢,通过微观组织和力学性能对比分析,确定适合现有退火生产线的成分,并采用奥钢联VAI退火热模拟试验机研究了退火温度对组织和性能的影响。试验结果表明:两种化学成分的试验钢均满足汽车用高强度双相钢的微观组织和力学性能要求,只添加Cr的试验钢可以代替复合添加Cr、Mo的试验钢;随着连续退火温度的升高,只加Cr试验钢的铁素体含量逐渐降低,马氏体含量呈先增加后降低的趋势,屈服强度逐渐上升,抗拉强度和断后伸长率先上升后降低;退火温度为820℃时,试验钢具有优良的综合力学性能,强塑积达到20.04GPa·%。

关键词：高强度双相钢汽车钢退火温度

Influence of consumption experiences on customers' satisfaction:an empirical study on fresh farm products in Wuhan, China

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Ecological Economy 2007年第2期3卷 149-158页

作者： li chuncheng Zhang Juntao li Chongguang College of Economics Management Huazhong Agricultural UniversityWuhan 430070P.R.China

Which factors influence customers’ satisfaction? Which way or path does each factor influence and decide customers’ satisfaction? These problems are the focuses of the research on customers’ satisfaction. This paper analyzes the survey data from some customers in the fresh farm food supermarket of Wuhan City with factor analysis method, multiple linear regression method, etc. The analysis results reveal that: 1) the consumption experiences decide custom- ers’ satisfaction degree through influencing the customers’ expectation and the perceived performance, namely the consumption experiences is the important factor which decides customers’ satisfaction; 2) the consumption experiences that influence customers’ satisfaction is a multi-dimensional construct, including such four dimensions as product consumption experience, service experience, shopping convenience experience, supermarket environment experience; furthermore, the degree that different consumption experiences influence customers’ satisfaction is diverse, and the product consumption experiences are the most important factor. This paper is of realistic significance to a certain extent to enrich the theoretical research on customers’ satisfaction and promote the practice of agricultural product marketing.

关键词： Consumption experiences Customers' satisfaction Influencing factor

Effect of matrix resin components on properties of the semi-conductive shielding material for high-voltage cable

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High Voltage 2024年第2期9卷 419-428页

作者： Guochang li Tianyao liu Xiaolong Chen Yanhui Wei chuncheng Hao Shengtao li Institute of Advanced Electrical Materials Qingdao University of Science and TechnologyQingdaoChina State Key Laboratory of Electrical Insulation and Power Equipment Xi'an Jiaotong UniversityXi'anChina

The semi-conductive shielding layer is an important part of the high-voltage cable,playing a role in uniform electric field and reducing the air gap at the *** overall performance of the cable is affected by the semi-conductive shielding layer with different base resin *** matrix resins of ethylene-vinyl acetate(EVA),ethylene-ethyl acrylate(EEA)and ethylene-butyl acrylate(EBA)were used to prepare the semi-conductive shielding materials of CB/EVA,CB/EEA and CB/*** influences of different matrix resins on the chemical,electrical,thermal and mechanical properties of the shielding materials were *** results show that CB has the best dispersion in EBA resin and the worst dispersion in EEA *** temperature in-flection points of CB/EVA,CB/EEA and CB/EBA shielding materials are 90°C,100°C and 110°C,respectively,and the CB/EBA shielding material has the lowest resistivity and the weakest positive temperature coefficient effect at room *** thermal conductivity of all three matrix resins is smaller than that of the shielding material,the thermal conductivity of CB/EVA and CB/EBA shielding materials show a slow increase with temperature,and the CB/EEA shielding material is the least affected by the *** mechanical properties of the three matrix resins and the three shielding materials are EBA>EVA>EEA,among them the stress of CB/EBA shielding material is 31.0 MPa and the strain is 570%.This work has important reference significance for the selection of shielding layer matrix resin and material formulation in engineering applications.

关键词： temperature. resin resins

A static-dynamic energy harvester for a self-powered ocean environment monitoring application

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Science China(Technological Sciences) 2022年第4期65卷 893-902页

作者： XUE Feng CHEN liang li chuncheng REN Jing YU JunBin HOU XiaoJuan GENG WenPing MU Jiliang HE Jian CHOU XiuJian Science and Technology on Electronic Test and Measurement Laboratory North University of ChinaTaiyuan 030051China

Ocean intelligent buoy is important for ocean environment *** the increase of requisite sensors and transportable data,a long power supply has become a problem to be solved *** this work,a hybrid nanogenerator integrating triboelectric,piezoelectric,electromagnetic,photovoltaic,and thermotropic units is proposed to maximize ocean ambient energy harvesting,which includes static energy(solar and thermal energy)and dynamic energy(wave energy).Compared with a device with a single energy conversion mechanism,this structural design breaks the limit of harvesting time and natural conditions during the energy harvesting process,thereby increasing the harvested *** energy harvesting is realized by the thermoelectric(TG)and photovoltaic(PV)units located inside the device and the PV unit attached to the device *** show that the maximum open-circuit voltage and short-circuit current are 5 V and 41 mA in the external PV and 1.33 V and 49 mA in the internal PV under 30000 Lux illumination,*** open-circuit voltage and short-circuit current of the TG unit are 5 V and 15 m A,*** core component of the dynamic generation unit is the gimbal used to harvest wave energy by the triboelectric nanogenerator(TENG),piezoelectric generator(PENG),and electromagnetic *** the frequency is 2.4 Hz,the maximum peak-to-peak power of the TENG,PENG,and EMG are 0.25,1.58,and 13.8 mW,***,an intelligent ocean buoy is fabricated by the integration of an energy harvester,a power management circuit,sensors,a microcontroller,and a wireless communication *** by static and dynamic energy,temperature signal,humidity signal,GPS signal,and sound signal are sent to the receiving terminal *** ocean energy harvester proposed in this work is of great significance for ocean energy harvesting and ocean wireless monitoring systems.

关键词： hybrid nanogenerator static energy dynamic energy energy harvester wireless monitoring system