城市空间扩展与"精明增长"中国化

阐述了美国城市蔓延及“精明增长”对策,综合国内外学者对“精明增长”中国化的观点,指出我国城市空间扩展借鉴“精明增长”理念应注意三个问题,并据此提出“精明增长”中国化的相关建议。     

可再生能源发电并网后大电网运行的智能调度

随着风力发电等可再生能源的并网及需求响应的实施,电力系统平衡稳定运行的不确定因素显著增加为应对这些不确定性,区域输电组织（RTO）或大型电网公司的调度系统需要在传统的实时监控基础上有更强的超前预测能力提出了一种新型的调度体系——发电控制应用（GCA）,以应对可再生能源并网带来的挑战。此系统凭借动态的、鲁棒的调度算法和灵活的系统配置,使调度系统可以确保电力系统具有足够的跟踪能力以应对可再生能源的不确定性、间歇性,保证大电网运行的可靠性     

基于模拟退火算法的智能天线广播波束权值生成方法

文章采用模拟退火与随机搜索相结合的优化算法,给出了智能天线广播波束赋形中特定形状广播波束所对应的权值生成方法。依据智能天线系统扇区覆盖模式的要求,并结合智能天线的阵列结构,利用模拟退火与随机搜索相结合的优化算法可得到每个阵元所需设置的幅度和相位权值。该方法适用于特殊广播波束的情况,对智能天线技术的应用具有重要意义。     

基于智慧现代化的现代物流升级与转型——以攀枝花为例

物联网的快速发展已经成为国际经济技术发展的重要趋势,充分利用物联网技术,给传统产业注入物联网元素,实现传统产业的升级和转型,以适应未来社会发展的需要,是产业发展的必然要求。通过打造构筑于物联网基础之上的智慧现代物流体系,构建基于物流实时感知系统、用户智能服务系统、物流管理与智能调度系统以及电子商务系统的智慧物流体系,实现物流的信息化、智能化,把传统物流发展成为感知、互联、可视、智能的智慧物流,将成为促进攀枝花现代物流业发展的重要平台。     

用窒息价格辅助定价

本文重点阐述了在假定线性需求是合理的以及窒息价格的相关信息可用的情况下计算均衡价格的公式。它能够让分析人员信服,即使在数据非常有限以及缺乏数学支持的情况下,有效的基准计算也是可以实现的。此外,它还有助于阐明价格弹性与需求变化之间的变化趋势,     

A new innovation paradigm: European cohesion policy and the retreat of public science in countries in Europe's scientific periphery

This article seeks to undertake a critical assessment of the changing position of public science in the entrepreneurial ecosystem of the countries on the periphery of European research. These countries are driven by new innovation paradigm based on entrepreneurship, which are implemented within the European Smart specialization strategy (S3). This article argues that S3 is widely implemented in the cohesion countries and, while it provides substantial resources for science, technology, and innovation, it fails to provide sustainability in the public research sector. This has direct implications for policies concerning innovation and entrepreneurial ecosystems. In order to prove the thesis, the article provides theoretical argumentation for emergence of a new innovation paradigm, driven by the rise of the entrepreneurial ecosystem, its incorporation into S3, and a consequent retreat of science policy in favor of entrepreneurial policy. The empirical analysis is focused on the funding trends seen in the business and public research sectors over the last decade (2008–2017), which have clearly shown that S3 has not contributed, despite expectations, to an increase in public expenditure for science. This signifies S3's neglect of public research within entrepreneurial ecosystems and challenges the ability of S3 to reduce wide disparities in research and innovation performance across the European Union. This ultimately endangers the innovation potential of the entrepreneurial ecosystem itself.     

Assessing greenhouse gas emissions from electric vehicle operation in Australia using temporal vehicle charging and electricity emission characteristics

ABSTRACT

Significant interest exists in the potential for electric vehicles (EVs) to be a source of greenhouse gas (GHG) abatement. In order to establish the extent to which EVs will deliver abatement, however, a realistic understanding of the electricity and transport sector GHG emissions impacts arising from different approaches to integrating EVs into the power system is required. A key issue in this regard is the extent to which GHG emissions are a function of where and when EV charging will be enabled (or disabled) by the provision of recharging infrastructure and implementation of charging management strategies by the electricity industry. This article presents an investigation of the GHG emissions arising from electricity and gasoline consumption by plug-in hybrid EVs under a range of standard EV-power system integration scenarios. An assessment framework is presented, and GHG emissions from EV use are assessed for the New South Wales (NSW) and South Australian (SA) pools of the Australian National Electricity Market (NEM) using retrospective electricity system generation data for 2011. Results highlight that there is a range of possible outcomes depending on the integration scenario and emissions accounting approach used. This range illustrates value of a temporally explicit assessment approach in capturing the temporal alignment of electricity sector emission intensity and EV charging. Results also show the importance of a clean electricity generation mix in order for EVs to provide a GHG abatement benefit beyond what would be achieved by a hybrid (but non-plug-in) vehicle. The extent to which overnight charging in NSW is observed to produce higher emissions relative to unmanaged charging also illustrates a possible trade-off between GHG emissions and benefits for electricity industry from EV charging at times of low demand.     

黔东南复杂地质条件高边坡预应力锚索应用与探讨

近年贵州省高速公路边坡失稳事件多发,边坡工程的使用寿命和耐久性正逐渐成为制约高速公路品质的突出瓶颈,为推动高速公路高质量发展,统筹考虑运营期及建设期的风险,系统提升边坡工程耐久性、可靠性与安全防护能力,实现边坡绿色、数字赋能,构建智慧边坡体系尤为重要。本文从高边坡预应力锚索施工引入,探索思考边坡防护行业弊病及发展方向,以期为同行做参考。     

Payments for environmental services to promote “climate‐smart agriculture”? Potential and challenges

Payments for environmental services (PES) have gained wide popularity as approaches to promote environmentally friendly land use or agricultural production practices. Yet academics have also voiced concerns against seeing PES as a panacea. This article discusses whether PES is an appropriate and promising approach to promote so‐called “climate‐smart agriculture” (CSA) practices, which we define as agricultural production practices that contribute to CO₂ emission reductions and/or removals and provide benefits to farmers via increased productivity and profits and reduced vulnerability to climate change. PES appears most promising for the promotion of CSA practices in small‐scale farming contexts with low incomes. Effective design, however, requires solid estimates of cost and benefit flows from CSA adoption over time, accounting for differences in socioeconomic and ecological conditions, and addressing the risk of leakage. Funding for such PES will likely have to come from public sources, and seems most promising where synergies with other objectives such as agricultural development, food security, and climate adaptation or other environmental services exist. The potential of alternative approaches for CSA support such as taxation with rebates for CSA practices, CSA‐related investment support such as microcredits, and hybrid approaches such as conditional microcredit should be further investigated.     

呼包鄂智慧城市群协调发展研究

智慧城市群的研究对于促进智慧城市建设、区域一体化发展具有重要的现实意义。呼包鄂城市群是内蒙古最具活力的经济圈,在内蒙古一带一路建设中处于重要地位。对智慧城市群相关文献进行综述,总结国内外智慧城市群建设经验,得出五条智慧城市群建设路径,并以呼包鄂三市为研究对象,运用熵值/TOPSIS法对呼包鄂智慧城市群建设水平进行评价,基于协调发展模型对其协调发展水平进行分析,最后对呼包鄂智慧城市群的协调发展提出三条建议。