Analysis and Suggestions on Management Strategies in Eco-industrial Parks in China

In the research, management strategies and problems of eco-industrial parks were mainly analyzed and some suggestions were proposed based on eco-industrial park, circular economy and ecologization of industrial park in China, providing references for ecologicalization policy design of industrial parks in China.

Industry-City Integration in Eco-industrial Park of China

Industry-city integration in industrial park has stepped into quick development with the continuous advancement of urbanization in China. Relying on the developed ecological industry chain,sustainable development ability and good ecological service,eco-industrial park is at the forefront of industry-city integration,and accumulates rich experience in practice. The operation mechanism model includes government development,development of large state-owned enterprises,and public-private partnership. The space structures involve the relation between central urban district and new industrial town,overall layout of production,living and ecological space in eco-industrial park. In the aspect of system innovation,park management system,household registration management system,cultural system of community and environmental governance system face the challenges.

Research on the Industrial Symbiosis Supporting System of Eco-industrial Park

The establishment and development of the industrial symbiosis of eco-industrial park are affected by several factors.Based on the formed industrial symbiosis supporting system chart,this article analyzes the microcosmic supporting system and macroscopic supporting system.In the microcosmic supporting system,it elaborates five aspects including key enterprises,service intermediaries in the park,symbiotic enterprises,competitors and the public in detail.Then it describes the macroscopic supporting system from four aspects of governmental participation,technological innovation,educational promotion and cultural support.Finally,combining with the current construction status of the eco-industrial park in China,it proposes the countermeasures and suggestions to build the supporting system for the eco-industrial park and provides theoretical support for the faster and better construction of the eco-industrial park in China.

Focus on the key problems and dilemmas that arise in developing eco-industrial parks in China

Despite the widespread incorporation of sustainable development into policy discourses, actually achieving the win-win-win scenario of economic, environmental and social development continues to be problematic. Advocates of industrial ecology suggest that shifting the basis of industrial production from a linear to a closed loop system, these gains can be achieved. In recent years, concepts drawn from industrial ecology have been used to plan and develop eeo-industrial parks （EIPs） that seek to increase business competitiveness, reduce waste and pollution, create jobs and improve working conditions. Despite a growing interest in EIPs, there have been few empirically informed studies that seek to explore the potential contribution such EIPs may make to sustainable development. This paper contributes to a developing sympathetic critique of industrial ecology by focusing on the key problems and dilemmas that arise in the course of developing eco-industrial parks, drawing upon empirical work conducted in China. The paper draws upon both an extensive survey of EIPs and in-depth interviews conducted with a range of stakeholders at some sites in China. As the paper reveals, EIPs in China are in their early stages and likewise their contribution to economic development and environmental policy, let alone social policies, is complicated and inchoate. The empirical material reveals that key features of industrial ecology such as inter-firm networking and collaboration in the form of materials interchange and energycascading are either absent or in the early planning stages. In each of the cases studied what is emerging is a form of EIP partly determined by the geographic setting and broader economic realities of the locality. While collaborative behavior between firms is central to EIP development if the potential benefits of industrial ecology are to be realized, it is important to realize that such behavior is difficult to develop from scratch through policy intervention. In conclusion, the paper suggests that expectations must be realistic for the community and location in question. As part of that realism, EIP projects must be designed to allow for a gradual approach, and each phase needs to be financially viable.

A model of techno-economic evaluation for eco-industrial park project

An eco-industrial park or estate is a community of manufactaring and service businesses located together on a common property. The goat of ElP is to create a win-win harmonious development aspect of ecooomic development and environmental protection. This paper emphasizes that the external .effect of an EIP is its main characteristic of technoeconomic evaluation for eco-industrial park project. From the view of the property, rights, the EIP＇s product is typicalty public-private. The government should take some inca.rares for the quantitative analysis on ecological positive externalities of the enterprises in EIP, and also should adopt Coase＇s Theorem, which supports that the market transaction is the best way to deal with positive externalities （external economics or diseconoraics）, or Pigou＇s Theorem, which holds that the government anti-positive externalities programs are the best way to cope with positive externalities, to internalize the EIP＇s external effects, which is also a fundamental tool to encourage investors to actively invest in EIP projects, Furthermore. this paper thinks that the EIP ＇s income should be equal to the income of staple products of the private property, and that of its by-products of the public property. According to this principle, this paper has put forward three major indicators, net present value （NPV）, internal rate of renan （IRR）, and investment repayment period （IRP）, which are also extensively used indicators in ardinary project techno-economic evaluation model to evaluate EIP technoeconomic effects. Theoretically, the indicatory not only can be used in EIP project evaluation, but also can provide a quantitative measure toot for the government to support EIP＇s construction to the maximum. In the end. a case is analyzed.

基于V-REP自动垂直泊车的教学仿真实验

泊车对驾驶员的操作技能有很高的要求,自动泊车系统的出现能够很好地解决这一问题,帮助驾驶员安全精准地完成泊车操作。该文对典型的自动垂直泊车进行仿真研究,针对标准和狭窄停车通道的垂直泊车,研究了C字型与人字型的泊车规划路径算法。基于机器人仿真平台(virtual robot experimentation platform,V-REP)搭建了典型的泊车仿真场景,利用用户数据协议(user datagram protocol,UDP)构建V-REP与MATLAB之间的通信,开展了V-REP与MATLAB的联合仿真实验,充分展示了自动垂直泊车的泊车过程,总结了垂直泊车的路径特点,对自动垂直泊车进行了可视化演示。此外,基于该平台为学生提供了虚拟仿真实验环境,激发了学生对无人驾驶的学习兴趣和勇于探索的精神,提高了学生的操作能力与创新思维能力,获得了良好的教学效果。

考虑电力网络约束的工业园区虚拟电厂调控边界求解方法

构建以新能源为主体的新型电力系统,亟须挖掘负荷侧灵活调节资源参与电网调控。含电解铝、矿热炉等高耗能负荷的工业园区具备良好的调控潜力,但是考虑园区内部电力网络约束,其精确调控边界求解面临着变量维数高、约束非线性的难题,现有方法不能较好地兼顾计算效率和精度。对此,文中将上述问题抽象为高维非线性状态空间在P-Q耦合平面的投影问题:分别建立考虑工业园区安全运行线性化和非线性约束的调控边界投影求解模型,采用一种新颖的高维状态空间投影算法,通过顶点“搜索-映射”的两步式求解过程,得到工业园区型虚拟电厂调控边界的精确投影。算例结果表明,采用所提方法求解的调控边界可由线性不等式组完全表征,与现有调度系统完全兼容,结合与叠加柔性资源调控能力和传统采样方法的对比,验证了该方法的可行性以及高求解精度和效率。

校企合作视阈下大学、科技、人才协同融合发展的空间实践——以深圳虚拟大学园(SZVUP)为个案

新技术革命和产业革命加速了现代大学推进校企合作的空间创新,以推进大学、科技、人才协同融合发展。空间社会学视角下,校企合作将大学、科技、人才勾连为一个关系紧密的社会空间。以作为校企合作典范的“深圳虚拟大学园”为个案,通过实地调查研究,结果发现:基于校企合作的大学、科技、人才协调融合发展中,存在“并置与内聚、分异与区分、切割与剥离”等空间实践,同时存在“差异的空间、秩序的空间、竞争的空间、矛盾的空间”等空间表征。未来要推进大学、科技、人才一体化发展,则需要持续推进校企合作空间创新,从观念迭代、体制创新、秩序再构等维度加以反思性实践。

考虑车网互动的园区电网动态双层能量管理策略

为解决大量接入的清洁能源出力波动和充电场内汽车数量的随机变化给电网能量管理带来的困难,提出一种园区电网双层优化控制策略.上层基于模型预测控制技术建立风光储集成动态优化模型,综合应用园区电池储能系统和电动汽车(EV)电池储能系统参与电网能量平衡.下层则考虑同时满足EV车主对EV的充电需求和上层能量调度的车网互动管理需求,制定园区电网内停车场的EV有序充放电策略.仿真算例验证表明:所提策略能将分散园区各处的EV储能集成为统一虚拟储能,扩展园区电网储能系统,增加可再生分布式电源的消纳与园区电网的经济效益.

国家文化公园文旅元宇宙空间生产的三重维度研究

国家文化公园文旅元宇宙是中国特色元宇宙体系的一部分,是在国家文化公园数字化演进趋势下创生的数字文旅生产与消费的空间场景。文章基于“空间生产”理论,从体验空间、元符号空间、交往空间3个维度解构国家文化公园文旅元宇宙。体验性文旅消费、叙事性文化传播与社会性共创实践,是国家文化公园文旅元宇宙空间生产的价值与功能。体验空间生产及体验性文旅消费是国家文化公园文化遗产、景观与消费活动的数字化延伸;元符号空间生产及叙事性文化传播是对国家文化公园所承载的中华文化符号的数字化“再再现”;交往空间生产及社会性共创实践使多元主体围绕国家文化公园元宇宙形成了境域化的社会交往关系。打造国家文化公园文旅元宇宙空间,能够推动国家文化公园数字化建设达到新的高度,丰富中国式现代化元宇宙体系。

中日元宇宙虚拟主题乐园教育空间设计研究

随着元宇宙的兴起,虚拟主题乐园逐渐发展成人们在虚拟世界中享受休闲娱乐的场所。虚拟主题乐园也具有潜在的教育价值,有望促进用户的沉浸式体验以及教育空间的创新和发展。基于此,首先介绍了元宇宙技术和虚拟主题乐园教育空间的概念和特点。其次,分析了虚拟主题乐园教育空间的设计原则,并对比解析了元宇宙视域下的中国和日本虚拟主题乐园教育空间的设计与建设特点。最后,文章探讨了未来虚拟主题乐园教育空间的应用前景和发展趋势。旨在探讨虚拟主题乐园教育空间的概念、设计原则和应用前景,为虚拟主题乐园教育空间的设计和发展提供参考和启示,助推教育、经济事业的进步。

基于物联网实时数据的交互式虚拟现代农业园区平台软硬件构建及应用

将虚拟现实、混合现实、增强现实和数字孪生等主流多媒体交互技术融入农业生产、生态、生活场景中,从北京市现代农业发展进程中的设施农业调控、会展农业体验、休闲农业观光和现代农业展示入手,获取农业物联网数据、农业园区场景数据、农作物生长点云数据等多种信息化数据,构建基于物联网实时数据的交互式虚拟现代农业园区平台。基于平台软件,根据不同的实际需求、环境条件,配置研发满足政府、专家、市民、农民和学生等受众对于智慧化农事活动体验、农业科普知识传播、农业园区展示规划及农业景观重构展现等要求的体验设备,为设施农园、休闲农庄、农业机构等提供完整的多媒体农业信息化交互体验解决方案,达到节本增效、增收致富、知识普及、休闲观光和提升信息化水平的目的。

考虑温室虚拟储能特性的现代农业园区综合能源系统优化配置方案

实现“双碳”目标,农业发展起到重要作用,农业园区化是农业现代化的重要方向。以北方某现代农业园区为例,确立园区运行约束条件,建立园区综合能源系统优化配置模型,提出考虑园区温室虚拟储能特性的现代农业园区综合能源系统优化配置方案,与未考虑温室虚拟储能特性的方案进行对比,验证了模型的有效性和优越性。该模型提高了现代农业园区综合能源系统的能源利用效率,有效降低了系统运行成本和投资成本。

“幻方”与互文——成都天府中心国际社区当代艺术中心创作实践

互文本是古汉语修辞手法,其优点是既能够结构性、整体化地把握主旨,又能将其呈现为画面感强、感染力足的文本。互文思维可总结为“大处考虑,小处对应”,它是设计创作中“趁手”的好方法。在成都天府中心国际社区当代艺术中心“幻方”两个阶段的创作中,建筑师秉持互文思维,在公园城市的宏观背景下,找到了设施融入在地环境且不失自身存在感的得体位置;在元宇宙虚拟的时空场景中,探索了借助人机交互、交叉迭代的方法来运用和拓展互文设计思维的可能性。

一种基于Park模型的并网逆变器VSG控制策略

提出一种新型并网逆变器VSG控制策略,该策略基于同步发电机的Park数学模型,考虑了电机的凸极效应及阻尼绕组的影响,通过两步Adams法求解同步发电机数学模型,从而得到并网逆变器的参考电流,使并网逆变器具有同步发电机的特性。仿真结果表明,在输入功率、电网电压、电网频率突变等典型工况下,并网逆变器与实际同步发电机具有一致的端口特性。最后搭建了实验平台,验证了所提方案的有效性。

Planning mode and realization path of regional characteristic ecoindustrial park

Starting from the regional characteristic industrial park planning plan,a horizontal comparison of domestic and foreign typical urban regional industrial park planning cases is carried out,and the commonalities characteristics are analyzed to explore the regularity and universality of the Tonghua urban characteristic industrial park.Under the guiding principles for planning and development of ecological industrial parks,the city’s resource advantages,industry goals and positioning are studied and analyzed from the perspectives of the government,market,and enterprises.It is pointed out that the government should formulate policies,regulations and the construction of characteristic industrial parks in combination with new planning methods.The market should build industrial parks with the support of industrial stimulus and technological innovation.Finally,it summarizes the realization path of regional characteristic industrial parks from five aspects:positioning and goals,ways to achieve goals,profit models,customers and values,basic advantages and exclusive resources.

基于虚拟现实的休闲农业园区室内沉浸式展示系统设计

为准确展示出室内沉浸式展示系统中所包含的大量数据信息,设计基于虚拟现实的休闲农业园区室内沉浸式展示系统。基于3D建模和虚拟现实(Virtual Reality,VR)系统,构建系统的数据层、业务层、表示层,从而完成系统结构的设计。在硬件设计方面,重置初始服务器后增加了浏览器/服务器(Browser/Server,B/S)结构服务器。在软件设计方面,利用不规则状态三角网表达复杂的结构外形,计算阻尼因子并建立数字可视化模型;设计Wi-Fi无线通信模式,在模块中增加里德-所罗门码(Reed-Solomon codes,RS)编码程序,纠正错误信号的数量;基于虚拟现实技术,融合影像数据与实景数据。测试结果表明:当休闲农业园区的信息增加到1200个时,设计系统的平均准确率为95.17%,说明设计系统可达到预期效果。

基于虚拟现实技术的化工园区安全教育平台设计

为克服原有化工安全教育方式形式单一、内容枯燥、效率低、参与度低等问题,设计基于虚拟现实技术的化工园区安全教育平台。该平台以Unity3D引擎为基础,结合事故后果模拟分析技术构建化工园区三维场景,提供具有真实感的交互体验,有利于培养学生的危险源辨识和事故应急处置能力,有效改善化工安全教育效果。

城轨虚拟编组关键性能指标及技术探讨

列车虚拟编组技术能够实现车辆资源的高效灵活利用,是解决轨道交通客流时空分布不均衡问题的有效方法,已成为国内外的研究热点。既有研究借鉴了汽车编队追踪的思路,主要关注于列车稳定追踪的相关方法,未能完全适应轨道交通的实际需求。针对城市轨道交通(简称“城轨”)虚拟编组研究的需要,深入分析城轨列车运行的特征,在此基础上总结提出包括站台停车时间差等在内的城轨列车虚拟编组应符合的技术性能指标;其次,针对虚拟编组的技术特征,提出包括大小交路和Y型线路等适合列车虚拟编组的潜在应用场景,并对实现虚拟编组的关键技术及其原理进行介绍,可为城轨列车虚拟编组研究提供参考。

电压单相跌落下VSG输出平衡电流控制策略

电网发生单相电压跌落会造成双馈风机变换器输出电流不平衡、冲击电流过大。传统虚拟同步控制策略以理想电压为基础建模,无法应对电压负序分量与正序分量耦合的情况,将直接影响电流环和脉冲宽度调制信号输出的稳定性。针对这一问题,提出了解耦双同步坐标系下基于单相Park变换的虚拟同步控制策略(DDSRF-VSG-Spark)。首先,通过解耦双同步参考坐标系实现正序分量与负序分量解耦,然后采用单相Park变换技术实现脉冲宽度调制信号和电流的稳定输出。最后,通过仿真对比验证,电网电压单相跌落期间,DDSRF-VSG-Spark能够保证系统的稳定运行。