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Integrated energy in Germany–A critical look at the development and state of integrated energies in Germany

Saman AMANPOUR, Daniel HUCK, Mark KUPRAT, Harald SCHWARZ

《能源前沿(英文)》 2018年 第12卷 第4期   页码 493-500 doi: 10.1007/s11708-018-0570-2

摘要: In the face of global warming and a scarcity of resources, future energy systems are urged to undergo a major and radical transformation. The recognition of the need to embrace renewable energy technologies and to move toward decarbonization has led to significant changes in the German energy generation, consumption and infrastructure. Ambitious German national plans to decrease carbon dioxide emissions on one side, and the unpredictable and volatile nature of renewable energy sources on the other side have elevated the importance of integrated energies in recent years. The deployment of integrated technologies as a solution to interlink various infrastructures creates opportunities for increasing the reliability of energy systems, minimizing environmental impacts and maximizing the share of renewable resources. This paper discusses the role of integrated energy systems in supporting of sustainable solutions for future energy transitions. Moreover, the reinforcement of this movement with the help of different technologies will be discussed and the development of integrated energy systems in Germany will be reviewed.

关键词: integrated energy     renewable energies     energy transition     power-to-gas     power-to-heat     power-to-mobility     energy storage    

Will Germany move into a situation with unsecured power supply?

Harald SCHWARZ

《能源前沿(英文)》 2019年 第13卷 第3期   页码 551-570 doi: 10.1007/s11708-019-0641-z

摘要: Together with a huge number of other countries, Germany signed the Paris Agreements in 2015 to prevent global temperature increase above 2°C. Within this agreement, all countries defined their own national contributions to CO reduction. Since that, it was visible that CO emissions in Germany decreased, but not so fast than proposed in this German nationally determined contribution to the Paris Agreement. Due to increasing traffic, CO emissions from this mobility sector increased and CO emission from German power generation is nearly constant for the past 20 years, even a renewable generation capacity of 112 GW was built up in 2017, which is much higher than the peak load of 84 GW in Germany. That is why the German National Government has implemented a commission (often called “The German Coal Commission”) to propose a time line: how Germany can move out of coal-fired power stations. This “Coal Commission” started its work in the late spring of 2018 and handed over its final report with 336 pages to the government on January 26th, 2019. Within this report the following proposals were made: ① Until 2022: Due to a former decision of the German Government, the actual remaining nuclear power generation capacity of about 10 GW has to be switched off in 2022. Besides, the “Coal Commission” proposed to switch off additionally in total 12.5 GW of both, hard coal and lignite-fired power plants, so that Germany should reduce its conventional generation capacity by 22.5 GW in 2022. ② Until 2030: Another 13 GW of German hard coal or lignite-fired power plants should be switched off. ③ Until 2038: The final 17 GW of German hard coal or lignite-fired power plants should be switched off until 2038 latest. Unfortunately the “Coal Commission” has not investigated the relevant technical parameter to ensure a secured electric power supply, based on German’s own national resources. Because German Energy Revolution mainly is based on wind energy and photovoltaic, this paper will describe the negligible contribution of these sources to the secured generation capacity, which will be needed for a reliable power supply. In addition, it will discuss several technical options to integrate wind energy and photovoltaic into a secured power supply system with an overall reduced CO emission.

关键词: CO2 reduction     mobility sector     renewable generation     coal commission     secured power generation capacity     reliable power supply     power-to-gas     power-to-heat    

Social media and mobility landscape: Uncovering spatial patterns of urban human mobility with multi source

Yilan Cui, Xing Xie, Yi Liu

《环境科学与工程前沿(英文)》 2018年 第12卷 第5期 doi: 10.1007/s11783-018-1068-1

摘要:

Check-in and survey data are explored to identify personal activity-specific places.

Ways for detecting and moderating sample bias of Weibo check-in data is proposed.

A graphic representation of urban activity intensity in Beijing, China is presented.

The potential application of Weibo check-in data for urban analysis is introduced.

关键词: Social media     Human mobility     Population bias     Sample reconstruction     Data integration    

复杂耦合系统的统计能量分析及其应用

盛美萍

《中国工程科学》 2002年 第4卷 第6期   页码 77-84

摘要:

文章综合导纳分析法、经典统计能量分析方法和经典功率流理论的各自优点,提出适合复杂耦合系统的统计能量分析方法,为研究实际机械结构之间的振动传递规律、复杂机械系统的声辐射特性提供理论依据,为实际工程结构的振动隔离、噪声治理提供理论指导。文章首次提出统计能量分析参数必须统一定义,将影响实际机械结构相互之间能量传递的若干要素各自分离,并引入相应的参数分别开展研究。利用理论研究的成果,发展后的统计能量分析首次应用于水下航行器振动和噪声特性分析,预报了水下航行器的振动传递规律和辐射噪声级。理论分析与实验测试结果符合较好。文章指出了水下航行器噪声治理的方向。

关键词: 功率流     统计能量分析     导纳     耦合    

On the potential of iPhone significant location data to characterize individual mobility for air pollution

《环境科学与工程前沿(英文)》 2022年 第16卷 第5期 doi: 10.1007/s11783-022-1542-7

摘要:

● We evaluated the accuracy of iPhone data in capturing time-activity patterns.

关键词: Air pollution exposure     Human mobility     iPhone     Significant Location     Smartphone data    

A visual graphic approach for mobility analysis of parallel mechanisms

Xu PEI, Jingjun YU

《机械工程前沿(英文)》 2011年 第6卷 第1期   页码 92-95 doi: 10.1007/s11465-011-0213-3

微观移动协议主动切换机制研究

赵阿群

《中国工程科学》 2004年 第6卷 第8期   页码 50-56

摘要:

针对微观移动协议现有切换机制的缺点,提出了主动切换机制,利用移动预测技术,在切换发生前预测移动主机将要切换的下一蜂窝以及切换的时刻,为移动主机预先建立新路径;为了保证主动切换机制的实现,提出了一个适用于主动切换机制并易于实现的移动预测算法;同时还提出了主动切换过程中分组丢失和重复避免方法;通过理论分析和系统仿真的方法对主动切换机制进行了性能评价,结果表明主动切换机制以较小的代价获得了可观的性能改善。

关键词: 微观移动协议     主动切换机制     移动预测     性能评价    

Analysis of the kinematic characteristics of a high-speed parallel robot with Schönflies motion: Mobility

Fugui XIE,Xin-Jun LIU

《机械工程前沿(英文)》 2016年 第11卷 第2期   页码 135-143 doi: 10.1007/s11465-016-0389-7

摘要:

This study introduces a high-speed parallel robot with Schönflies motion. This robot exhibits a promising prospect in realizing high-speed pick-and-place manipulation for packaging production lines. The robot has four identical limbs and a single platform. Its compact structure and single-platform concept provides this robot with good dynamic response potential. A line graph method based on Grassmann line geometry is used to investigate the mobility characteristics of the proposed robot. A generalized Blanding rule is also introduced into this procedure to realize mutual conversion between the line graphs for motions and constraints. Subsequently, the inverse kinematics is derived, and the singularity issue of the robot is investigated using both qualitative and quantitative approaches. Input and output transmission singularity indices are defined based on the reciprocal product in screw theory and the virtual coefficient by considering motion/force transmission performance. Thereafter, the singular loci of the proposed robot with specific geometric parameters are derived. The mobility analysis, inverse kinematics modeling, and singularity analysis conducted in this study are helpful in developing the robot.

关键词: parallel robot     mobility     inverse kinematics     singularity     transmission performance    

Erratum to: On the potential of iPhone significant location data to characterize individual mobility

《环境科学与工程前沿(英文)》 2022年 第16卷 第9期 doi: 10.1007/s11783-022-1556-1

PM-support interfacial effect and oxygen mobility in Pt, Pd or Rh-loaded (Ce,Zr,La)O catalysts

《环境科学与工程前沿(英文)》 2021年 第15卷 第4期 doi: 10.1007/s11783-020-1369-z

摘要:

• Pt/CZL exhibits the optimum catalytic performance for HC and NOx elimination.

关键词: Precious metal-loaded (Ce     Zr     La)O2 catalysts     Oxygen mobility     Catalytic performance    

Microbial responses to the use of NaClO in sediment treatment

《环境科学与工程前沿(英文)》 2022年 第16卷 第2期 doi: 10.1007/s11783-021-1451-1

摘要:

• Chlorine addition enhanced the release of TOC, TN from the sediment.

关键词: Sediment chlorination     Substance mobility     Microbial response     Community composition     Function    

面向未来智慧城市的汽车共享出行发展战略

陈轶嵩,赵俊玮,刘永涛

《中国工程科学》 2019年 第21卷 第3期   页码 114-121 doi: 10.15302/J-SSCAE-2019.03.009

摘要:

本文分析了当前汽车共享出行的发展环境、发展趋势与发展机遇,梳理了汽车共享出行与智慧城市之间的共生关系。对我国汽车共享出行的典型发展模式进行分析、实践经验进行总结,从新技术、新需求以及新模式三个维度阐述了汽车共享出行发展的新理念。在此基础上,提出了我国汽车共享出行创新发展的五种典型路径,基于发展路径对我国未来智慧城市汽车共享出行生态进行了构想。

关键词: 智慧城市     共享出行     发展模式     路径分析     生态构想    

城市按需空中交通的综合网络设计与需求预测 Article

吴志强, 张瑜

《工程(英文)》 2021年 第7卷 第4期   页码 473-487 doi: 10.1016/j.eng.2020.11.007

摘要:

城市空中交通(UAM)是近年来提出的使用电动垂直起降飞行器(eVTOL)的新兴概念。UAM通过利用低空空域有望为城市地区的乘客和货物运输提供另一种选择,显著提高机动性。除了其他基本要素外,还需要垂直起降机场等地面基础设施来实现UAM从概念到运行的跨越。本研究探讨了UAM按需服务的网络设计,在考虑垂直起降机场的位置和潜在的UAM需求之间相互作用的同时,重点强调使用整数规划和求解算法来确定垂直起降机场的最佳位置、用户分配以及进出模式的选择。一个基于美国佛罗里达州坦帕湾地区模拟分解交通需求数据的案例研究验证了该模型的有效性。通过分析基于佛罗里达州的激光雷达数据和eVTOL运行的自身约束和监管约束下开发出的3D地理信息系统(GIS)地图,我们获得了备选垂直起降机场的位置。垂直起降机场最佳位置的选择以总成本最小为目标,但同时该模型结构允许每个用户根据广义费用在地面运输和UAM之间选择更好的模式。案例研究的结果显示,虽然从地面模式切换到多式联运的行程比重很小,但选择UAM服务的用户明显节省了时间。此外,本文从供应方面探讨了不同参数设置对UAM服务需求的影响,并测试了不同的定价策略对UAM的需求和利润之间的影响。同时分析了垂直起降机场数量与定价策略的综合效应。研究结果为城市决策者和UAM运营商提供了深入的规划和管理意见。本文的结论部分讨论了该研究的注意事项、作者正在进行的工作以及UAM的未来研究方向。

关键词: 先进空中交通     楼顶停机坪     交通方式的选择     低空空域     无人驾驶系统    

Current research, key performances and future development of search and rescue robots

LIU Jinguo, WANG Yuechao, LI Bin, MA Shugen

《机械工程前沿(英文)》 2007年 第2卷 第4期   页码 404-416 doi: 10.1007/s11465-007-0070-2

摘要: Frequent natural disasters and man-made catastrophes have threatened the safety of citizens and have attracted much more attention. The rescue mission under disaster environment is very complicated and dangerous for a rescue team. Search and rescue (SAR) robots can not only improve the efficiency of rescue operations but also reduce the casualty of rescuers. Robots can help rescue teams and even replace rescuers to perform dangerous missions. Search and rescue robots will play a more and more important role in the rescue operations. A survey of the research status of search and rescue robots in Japan, USA, China and other countries has been provided. According to current research, experiences and the lessons learned from applications, the five key performances of a search and rescue robot are survivability, mobility, sensing, communicability and operability. Multi-technique fusion and multi-agent intelligent network are considered to be requirements for the future development of the search and rescue robot. Disaster prevention, disaster reduction and disaster rescue are the important parts of national public safety. They are also crucial for the safety of citizens and their estates. Search and rescue robotic technique is an urgent needed, strategic and core technique for national development. It will be important and strategic for national economy and safety.

关键词: national development     communicability     mobility     national     intelligent network    

现代通信技术的发展趋势

毕厚杰

《中国工程科学》 2000年 第2卷 第8期   页码 31-34

摘要:

文章综合分析了通信网络、通信终端技术的发展趋势,着重指出我国加强通信软件产业化及发展EDA技术,以迎接入关(WTO)。

关键词: 电信网     分组化     多媒体化     移动化     通信终端    

标题 作者 时间 类型 操作

Integrated energy in Germany–A critical look at the development and state of integrated energies in Germany

Saman AMANPOUR, Daniel HUCK, Mark KUPRAT, Harald SCHWARZ

期刊论文

Will Germany move into a situation with unsecured power supply?

Harald SCHWARZ

期刊论文

Social media and mobility landscape: Uncovering spatial patterns of urban human mobility with multi source

Yilan Cui, Xing Xie, Yi Liu

期刊论文

复杂耦合系统的统计能量分析及其应用

盛美萍

期刊论文

On the potential of iPhone significant location data to characterize individual mobility for air pollution

期刊论文

A visual graphic approach for mobility analysis of parallel mechanisms

Xu PEI, Jingjun YU

期刊论文

微观移动协议主动切换机制研究

赵阿群

期刊论文

Analysis of the kinematic characteristics of a high-speed parallel robot with Schönflies motion: Mobility

Fugui XIE,Xin-Jun LIU

期刊论文

Erratum to: On the potential of iPhone significant location data to characterize individual mobility

期刊论文

PM-support interfacial effect and oxygen mobility in Pt, Pd or Rh-loaded (Ce,Zr,La)O catalysts

期刊论文

Microbial responses to the use of NaClO in sediment treatment

期刊论文

面向未来智慧城市的汽车共享出行发展战略

陈轶嵩,赵俊玮,刘永涛

期刊论文

城市按需空中交通的综合网络设计与需求预测

吴志强, 张瑜

期刊论文

Current research, key performances and future development of search and rescue robots

LIU Jinguo, WANG Yuechao, LI Bin, MA Shugen

期刊论文

现代通信技术的发展趋势

毕厚杰

期刊论文