Productive test of a newly drying technology of veneer： intermittent-contact drying of veneer with flexible screen belt

A newly drying technology, intermittent-contact drying of veneer with flexible screen belt (ICD-fbs), was invented and used in poplar veneer drying. Productive test was carried out for validating the practical use of this drying method. The test result shows that to dispose flexible screen belts on the two sides of hot board could help steam discharge remarkably. The veneer dried using ICD-fsb method had smooth and level surface, less deformation and warping, even moisture content, and high utilization rate. The time for opening hot board to discharge steam,which, early or late, is a key to obtain good drying result, was determined at the time when the core's temperature of veneer reaches 100℃ (vaporization). Using ICD-fsb method, the shrinking rates in tangent of veneer were from 1.90% to 2.26% for veneer of 0.4 mm in thickness,2.49% to 4.50% for veneer of 1 mm in thickness and 1.34% to 3.30% for veneer of 1.7 mm in thickness, which are much lower than the results obtained by other drying methods. The method of ICD-fsb offers a reliable technological guarantee for solving the deformation problem of veneer drying, especially the deformation of wood from quick-growing plantation.

Approaches of Scientific and Cultural Communication Constructed by Wuhan Museum of Science and Technology in the Context of the Belt and Road Initiative

The Belt and Road initiative is in the first instance,the barrier-free communication in ideology and culture.To cooperate with the Belt and Road initiative,excellent exhibitions in cultural technology and history from other nations are brought in Wuhan Museum of Science and Technology(hereinafter referred to as WMST).WMST’s own science education achievements are going global in both online and offline ways to support and get involved in the initiative and contribute to international communications.

Discussion on the Application of Post-pouring Belt Construction Technology in Building Construction Processes

In recent years,with the rapid development of modern social economy,the urbanization process has continued to grow,and with it,so as to the demand for housing construction in urban areas.From the development perspective of construction projects,the construction involved would not only has to have a strong structural quality,but attention is also needed in the overall quality of the building.In this,a reasonable introduction of post-pouring belt construction technology in the building construction process can effectively control cracks in concrete structures.This article takes the post-pouring belt construction technology as the main research object and focuses on its application in the housing construction process,which has shown to provide better assistance in aiding construction.

Research on Chinese agricultural technology transfer to Vietnam under of the Belt and Road Initiative

Since the Belt and Road Initiative was put forward,the agricultural technology exchanges between China and Vietnam have become more and more frequent.With its unique geographical advantages,economic differences and technological complementarities,China is steadily advancing its agricultural technology transfer to Vietnam.This paper analyzes that the main driving force of Chinese agricultural technology transfer to Vietnam is the existence of technological potential difference.This paper puts forward corresponding countermeasures and suggestions from three aspects of government,agricultural enterprises and scientific research institutions.

Research on the Application of Blockchain Technology in the Financial Field from the Perspective of The Belt and Road Initiative

With the continuous deepening of The Belt and Road Initiative development strategy in China,blockchain technology has been more and more widely applied in the financial field.In recent years,the overall operation situation of China’s financial sector is stable.However,with the reform of the economic system and the innovation of the financial sector,there are still many problems in China’s financial sector that need to be improved.With its application advantages,blockchain technology has solved many problems in the financial field.This paper analyses and discusses the application of blockchain technology in the financial field from the perspective of“The Belt and Road Initiative”.

Prospects for Science and Technology Cooperation belween the Guangdong-Hong Kong-Macao Greater Bay Area and Portugal under the Belt and Road Initiative

President Xi,focusing on building a new pattern of all-round opening up to the outside world and promoting the common prosperity and progress of all countries,put forward a major proposal for the construction of the Silk Road Economic Belt and the maritime Silk Road in twenty-first Century.The bay area economy as an important coastal economic form,is the highlight of the current international economic map,and is a significant symbol of the world's first-class coastal city.The international first-class bay areas,such as New York Bay area,San Francisco Bay area and Tokyo Bay area,are characterized by openness,innovation,livability and internationalization.The Guangdong-Hong Kong-Macao Greater Bay Area has four worldclass cities,name Guangzhou,Shenzhen,Hong Kong and Macao,and the Pearl River Delta city cluster.It has an open economic structure,efficient resource allocation ability,strong agglomeration and spillover function and development international communication network plays a core function of leading innovation and gathering radiation.It is an important growth pole for promoting the economic development of the maritime Silk Road and a leader in technological change.With the help of Portugal's geographical position on the maritime Silk Road and market access advantages within the EU system,the Greater Bay Area should further deepen scientific and technological cooperation,improve the ability of scientific and technological innovation of both sides,let the scientific research subjects of the bay area help Portugal's scientific and technological development,and enhance PortugaFs scientific and technological position in the EU.From the perspective of the Belt and Road Initiative,combined with the basic situation and cooperation of China,especially Guangdong,Hong Kong and Macao,and the development of science and technology in Portugal,this article explores the technological fields,policy measures that are suitable for scientific and technological cooperation between the two sides,and puts forward corresponding suggestions to contribute to the technological development of China,Portugal and the global economic and social sustainable development.

Study on Semi-Continuous Technology System for Soft Material Stripping in Large Surface Mines

Continuous and semi-continuous mining technology has become the main trend of modern surface mines in the world. According to the deposit characteristics of coal basin in China and Chinese situation,this paper discussed the new semi-continuous technology── shovel - transfer wagon-belt conveyor and its application prospect in large surface coal mines in China.

Theoretical Model on Transformation Factors of Scientific and Technological Achievements under the Belt and Road Initiative

With the continuous deepening of the Belt and Road Initiative,the countries involved are increasingly connected in the field of science and technology.Based on the transformation theory of scientific and technological(S&T)achievements,this study establishes a theoretical model of transformation factors of S&T achievements under the Belt and Road Initiative.Combined with the data analysis from questionnaire,it is found that in S&T achievements transformation process,there is a significant positive correlation between the innovation factors and the transfer factors,between the transfer factors and the diffusion factors,and between the diffusion factors and the transformation results.These conclusions provide reference for the subsequent S&T achievements transformation activities under the Belt and Road Initiative.Therefore,in the process of promoting the transformation of S&T achievements under the Belt and Road Initiative in the future,innovation factors such as information innovation,service innovation,and cooperative innovation should be fully reflected.Relevant agencies should take the transfer factors of S&T achievements as guidance;promote and apply the results of incubation through diffusion media and diffusion channels.

“一带一路”共建国家间的技术扩散——基于技术内容与网络结构的分析

技术扩散是强化国际经济与创新联系的有效途径,是构建高质量开放创新体系的重要方式。国际技术扩散作为两个主体间的技术扩散活动具有方向性,不同国家的创新政策和技术发展战略侧重点不同,在技术扩散能力和技术吸收能力上均有差异。因而国家间需要构建高效、稳定的技术扩散网络,充分发挥自身的技术优势、补齐技术短板,进一步加大技术流动和增强创新能力。本研究基于技术扩散理论,运用专利引证数据构建“一带一路”共建国家间技术扩散网络,分时段纵向分析共建国家技术扩散网络的演化,分技术领域横向分析共建国家间技术扩散的特征,探索中国与共建国家间技术扩散的内容和路径。研究认为:中国在共建国家技术扩散网络中的核心地位逐步确立,且在“一带一路”倡议提出后中国的核心位置更加明显、技术扩散范围更加广泛;但整体技术扩散网络密度低,除中国外的其他国家间技术扩散关系构建较少;不同技术领域的技术扩散网络形态各有不同,其中化学技术领域的技术扩散最活跃、网络复杂度最高;俄罗斯在化学、机械工程、仪器、其他技术领域具有一定技术优势,并且对中国的技术扩散强度很大,而中国在电气工程技术领域更有技术扩散优势。

数字普惠金融何以影响农民增收?——理论机制与县域证据

探究数字普惠金融能否富民增收对实现共同富裕具有重要意义。基于拓展的内生经济增长模型,本文构建一个数字普惠金融影响农民收入的理论分析框架,并利用2014—2020年长江经济带县域数据实证研究数字普惠金融对农民收入的影响机制、作用渠道与空间溢出效应。研究结果显示,数字普惠金融能够增加农民收入;从细分维度看,数字普惠金融的覆盖广度和使用深度对农民收入存在促进作用,而且覆盖广度的促进作用更强。农业技术进步、农民物质资本积累和农村人力资本积累是数字普惠金融促进农民收入增加的重要传导路径。异质性分析发现,长江经济带下游县域数字普惠金融对农民的增收效果最强,中游其次,上游最弱,而且对于收入水平高、人口规模大和耕地规模大的县域,数字普惠金融对农民的增收效应更强。从空间视角来看,数字普惠金融具有空间溢出效应且存在明显的溢出边界。本文研究结论为农民增收提供了基于数字普惠金融发展视角的经验证据与政策启示。

长江经济带知识产权保护与城市绿色技术创新效率——基于创新价值链视角的空间效应分析

基于创新价值链视角,将绿色技术创新活动分解为科技研发和成果转化两个阶段,对2011—2020年长江经济带108个城市知识产权保护的绿色创新效应进行实证分析。结果表明:(1)知识产权保护对本地绿色技术创新总效率及其子阶段效率的直接影响均显著为正;空间效应结果表明,知识产权保护对科技研发效率存在正向空间溢出效应,对成果转化效率则具有负向空间溢出效应,但对总效率的空间影响效应依然为正。(2)强化知识产权保护能够通过吸引外商直接投资、促进金融发展、提高人力资本质量三种渠道促进城市绿色技术创新效率提升。(3)异质性分析表明,长江经济带下游城市强化知识产权保护有利于推动科技研发效率和成果转化效率的提升;而中上游城市加强知识产权保护对科技研发效率的提升作用并不显著,对成果转化效率甚至具有消极影响。本文结论为长江经济带推进知识产权保护建设和绿色技术创新发展提供了有益启示。

装配式叠合楼板后浇带接缝处细节施工研究

叠合楼板因整体性能好、构造简单、弹性好以及使用便捷等优势在装配式建筑中具有广泛的应用价值,装配式叠合楼板后浇带接缝处因模板与后浇带叠合板存在空隙等导致其存在漏浆通病问题,其不仅影响装配式建筑的整体美观,而且还增加施工成本。鉴于此,以某装配式项目为例,针对传统施工模式下后浇带接缝处存在的漏浆通病,提出在模板底部采取螺杆反吊和利用废钢筋焊接形成自拉加固体系,加固接缝处模板,以此减少叠合板后浇带接缝空隙,控制叠合板后浇带接缝漏浆通病。

长江经济带地质资源环境综合信息管理与服务系统的开发与应用

为了支撑服务长江经济带发展国家战略,中国地质调查局部署实施了“长江经济带地质环境综合调查工程”,并开发了相应的综合信息管理与服务系统。该信息系统具有低耦合和高扩展的特性,能够从数据汇聚、数据管理、数据应用、二三维一体化和信息共享等多个方面提高系统的灵活性和可配置性。系统采用辅助工具+主系统的架构,同时运用数据湖、二三维一体化等新技术,通过封装接口和统一化处理方式对多种数据源进行统一管理和处理,降低了数据之间的依赖关系,从而使系统更加灵活可变,能够更好地应对多变的业务需求,提高数据处理性能和应用效率,进而为决策者提供全面的地质环境信息和决策依据。该系统的建立和完善将为长江经济带的国土空间规划、新型城镇化战略、重大工程规划建设、地质灾害防治和生态文明建设等工作提供重要支撑。

“一带一路”共建国家农业科技创新合作网络结构演化及影响因素探究

基于WOS数据库中跨国农业科技论文合著数据,借助社会网络分析法和QAP回归模型,剖析2006—2020年“一带一路”共建国家农业科技创新合作网络结构演化特征及影响因素。研究发现:(1)“一带一路”共建国家农业科技创新合作网络整体结构指标均得到了不同程度的优化,且各指标优化速度快于全球农业科技创新合作网络。(2)“一带一路”共建国家和全球国家农业科技创新合作网络去中心化趋势均较明显,多核共存特征更加突出。(3)中国和意大利在合作网络中同时扮演着核心者和中间人角色。(4)合作网络呈现出双向溢出、主受益、“经纪人”3种类型的块集聚特征,亚洲国家是推动农业科技创新合作的主引擎。(5)制度、经济、科研和认知邻近对3个阶段的合作网络都具有显著的正向影响,而空间邻近对合作的阻碍作用逐渐减弱。“一带一路”共建国家应进一步重视跨国农业科技创新合作,明确自身在合作网络中的地位与角色,充分借助网络核心国家的重要作用,加速融入农业科技创新国际合作核心网络.

智力资本对长江经济带智慧城市建设的作用研究

智慧城市建设是未来我国城市高质量可持续发展的重要选择,也是现阶段我国推进新型工业化、发展新质生产力的重要途径。将智慧城市建设的技术中心主义和人本主义相结合,从资本、人、技术、空间建构智慧城市要素指标,阐释智力资本通过人力素质、智力产出、科技投入、开放水平四大方式促进智慧城市经济增长的作用机理。构建生产函数模型,运用长江经济带2002—2022年面板数据分析11个核心城市智力资本对智慧城市经济增长的影响。结果表明:不同智慧城市的未来发展存在共性与特性,长江经济带智力资本的集聚对智慧城市经济增长有显著的促进作用,其分解要素对不同区域及不同级别智慧城市的经济增长作用呈异质性,而开放水平是现阶段最为重要的因素。在此基础上,提出有利于长江经济带智慧城市经济发展的对策建议:从数字孪生城市建设、产业数字化发展、数字化转型要素集聚等方面入手,实施不同区域、不同等级城市分类指导的智慧城市发展战略;以智慧城市建设的市场需要为导向,聚焦智力产出的市场转化,发挥智力资本的影响推动作用;推进智力资本各要素的有效整合,加强“技术+人本”互嵌,促进数据要素跨域流通。

“一带一路”倡议下对外直接投资对国内产业结构升级的影响

对外直接投资是推进高水平对外开放的重要内容,其促进母国产业结构升级的积极作用对构建双循环发展新格局具有重要意义。利用我国2003—2020年的省级面板数据的实证检验表明,对外直接投资在总体上显著促进了我国产业结构的升级。而异质性分析发现,这一效应在“一带一路”倡议提出以后和西部地区尤为明显;分位数检验表明,对外直接投资促进国内产业结构升级的边际效应会受产业结构发展水平的影响呈现“M型”特征。因此,应增强技术溢出吸收能力和要素优化配置能力,加快形成“走出去”和“引进来”双向互促的高水平开放新格局,最大化对外直接投资促进国内产业结构升级的效应。

数字技术对长江经济带物流效率的影响

基于2013-2022年长江经济带11个省份的面板数据,构建DEA-BCC模型和DEA-Malmquist指数模型,分别对长江经济带省域的物流效率进行静态和动态趋势实证分析,并利用Tobit模型从数字技术基础设施和数字技术应用两个方面研究了数字技术对长江经济带物流效率的影响。研究结果表明:长江经济带上中下游地区的物流纯技术效率和规模效率存在显著差异,物流规模效益呈现出从下游到上游逐渐递减的趋势,其中下游地区物流规模效益均值最高,表明下游地区整体物流效益显著优于上游和中游地区;物流综合效率呈现出从下游到上游逐渐递减的波动趋势,下游地区表现最优,上游地区受地理条件限制,效率相对滞后;数字技术对物流业综合效率具有显著影响,光缆线路长度和软件业务收入的增加有助于提升物流效率。反常的是,移动电话交换机容量的增加对物流效率会产生负面影响。根据研究结果提出长江经济带应加大通信基础设施投入,推动数字技术与物流业深度融合,关注资源配置的合理性,以促进物流业综合效率提升。

高等教育发展、技术创新与产业结构升级的耦合关系及其收敛性、动态演进分析——以长江经济带为例

构建耦合协调度模型对长江经济带高等教育发展、技术创新与产业结构升级之间耦合协调关系进行测度,并分析其收敛性和动态演进趋势。研究结果表明:考察期内长江经济带各省市高等教育发展、技术创新与产业结构升级耦合协调水平总体处于上升趋势,但耦合水平较低,贵州和云南一直处于极度失调阶段,安徽、江西、湖北、湖南、四川、重庆由极度失调阶段过渡到严重失调阶段;上海则在中度失调和轻度失调之间徘徊;浙江由严重失调阶段进入中度失调和轻度失调阶段;江苏省由轻度失调进入濒临失调、勉强协调阶段;长江经济带高等教育发展、技术创新与产业结构升级耦合协调度存在δ-收敛和β-收敛;耦合协调水平差异在扩大,出现了多极化现象。

“一带一路”沿线国家的直接投资提升中国价值链地位研究——基于增加值贸易核算的角度

基于增加值贸易核算方法,使用TiVA(2018)数据,计算中国价值链地位,并与世界平均水平进行对比。结果显示:2005—2016年间,中国的国内增加值出口率从73.7%提升到了83.3%,中国的价值链地位不断提升。采集49个“一带一路”沿线国家2005—2014年面板数据对理论机制进行实证检验,结果证明:中国对“一带一路”沿线国家的直接投资对中国的价值链地位有显著提升作用,其中,产业转移、需求增长及营销促进都起到显著的正向作用,营销促进的提升作用相对较大,逆向技术溢出效应作用为负。

长江经济带工业区污染场地特征及修复技术选择分析

掌握工业场地污染特征及修复技术选择信息,明确场地污染防治需求,对长江经济带工业区污染场地土壤污染防治及再开发安全利用具有重要意义.本文对长江经济带工业区621个污染场地修复治理的案例数据进行调研,采用相关性分析等方法,对工业场地的污染特征及修复技术的优先选择进行了综合解析.结果表明:砷、镍、汞、铅、铬、锌、镉、苯、1,2-二氯乙烷、氯仿、苯并[a]芘和石油烃是长江经济带工业区的主要目标污染物,也是引起下游地区以复合型污染为主(48%)的主要因子,而砷、铅、镉、铬等的普遍存在是造成中上游地区以无机型污染为主(上游无机型污染占48%,中游占67%)的主要原因;化学原料和化学制品制造业污染场地中涉及污染物种类(116种)最多,占据长江经济带工业区污染场地中发现污染物种类的85%;调研的案例中污染深度较大的场地(污染深度>10 m)多集中于下游地区,可能受场地土层结构、污染物本身性质以及企业的生产年限等因素影响;目前长江经济带工业区污染场地修复技术多选择异位修复,主导因素为场地污染类型、用地规划以及修复效果和工期.研究显示,长江经济带工业区场地污染特征具有区域性,以异位固化/稳定化、水泥窑协同处置和异位化学氧化为主的异位修复技术应用广泛,未来需要进一步加强引导土壤污染防治向绿色低碳发展.