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Study on the Path of “Near-zero Emission” Coal-based Clean Energy Ecosystem Development

Zhang Yu-zhuo

《工程管理前沿(英文)》 2014年 第1卷 第1期   页码 37-41 doi: 10.15302/J-FEM-2014007

摘要: Developing a "near-zero emission" coal-based clean energy ecosystem bears great significance for the sustainable development of clean energy in China and the world at large. This article delves into the development strategy, implementation pathways and key priorities of China's "near-zero emission" coal-based clean energy ecosystem, and in turn proposes specific measures to underpin the development and implementation of such system.

关键词: near-zero emission     clean energy ecosystem     study on the path    

Innovative development path of ethnomedicines: the interpretation of the path

null

《医学前沿(英文)》 2017年 第11卷 第1期   页码 32-47 doi: 10.1007/s11684-016-0495-2

摘要:

One of the primary purposes of the innovative development of ethnomedicines is to use their excellent safety and significant efficacy to serve a broader population. To achieve this purpose, modern scientific and technological means should be referenced, and relevant national laws and regulations as well as technical guides should be strictly followed to develop standards and to perform systemic research in producing ethnomedicines. Finally, ethnomedicines, which are applied to a limited extent in ethnic areas, can be transformed into safe, effective, and quality-controllable medical products to relieve the pain of more patients. The innovative development path of ethnomedicines includes the following three primary stages: resource study, standardized development research, and industrialization of the achievements and efforts for internationalization. The implementation of this path is always guaranteed by the research and development platform and the talent team. This article is based on the accumulation of long-term practice and is combined with the relevant disciplines, laws and regulations, and technical guidance from the research and development of ethnomedicines. The intention is to perform an in-depth analysis and explanation of the major research thinking, methods, contents, and technical paths involved in all stages of the innovative development path of ethnomedicines to provide useful references for the development of proper ethnomedicine use.

关键词: ethnomedicines     innovative development path     resource study     standardized development research     industrialization     internationalization    

动态二叉树表示环境的A*算法及其在足球机器人路径规划中的实现

唐平,杨宜民

《中国工程科学》 2002年 第4卷 第9期   页码 50-53

摘要:

提出采用二叉树表示二维空间的方法,对全局路径规划和局部路径规划进行综合考虑,设计移动机器人在复杂环境下对动态障碍物进行避障的A*算法。在足球机器人系统中进行仿真,将二叉树动态地表示球场的机器人与目标为对角线的矩型环境,使搜索范围随搜索进程动态地减小,实现了路径规划的整体优化。

关键词: 动态二叉树     A*算法     路径规划    

Rise of aluminum-chalcogen batteries: A promising path to sustainable energy storage

《能源前沿(英文)》 2023年 第17卷 第5期   页码 567-568 doi: 10.1007/s11708-023-0887-3

摘要: Rise of aluminum-chalcogen batteries: A promising path to sustainable energy storage

关键词: promising path energy    

中国公司治理的路径依赖——理论与实证分析

邴红艳

《中国工程科学》 2004年 第6卷 第2期   页码 82-87

摘要:

文章在简要回顾路径依赖理论的基础上,运用公司治理路径依赖模型:结构驱动路径依赖和制度驱动的路径依赖模型,揭示了公司治理演进过程中路径依赖的作用机理,并针对中国公司治理演进过程中的路径依赖进行了实证分析。

关键词: 中国公司治理     路径依赖     结构驱动路径依赖     制度驱动路径依赖    

Extended model predictive control scheme for smooth path following of autonomous vehicles

《机械工程前沿(英文)》 2022年 第17卷 第1期   页码 4-4 doi: 10.1007/s11465-021-0660-4

摘要: This paper presents an extended model predictive control (MPC) scheme for implementing optimal path following of autonomous vehicles, which has multiple constraints and an integrated model of vehicle and road dynamics. Road curvature and inclination factors are used in the construction of the vehicle dynamic model to describe its lateral and roll dynamics accurately. Sideslip, rollover, and vehicle envelopes are used as multiple constraints in the MPC controller formulation. Then, an extended MPC method solved by differential evolution optimization algorithm is proposed to realize optimal smooth path following based on driving path features. Finally, simulation and real experiments are carried out to evaluate the feasibility and the effectiveness of the extended MPC scheme. Results indicate that the proposed method can obtain the smooth transition to follow the optimal drivable path and satisfy the lateral dynamic stability and environmental constraints, which can improve the path following quality for better ride comfort and road availability of autonomous vehicles.

关键词: autonomous vehicles     vehicle dynamic modeling     model predictive control     path following     optimization algorithm    

Innovative development path of ethnomedicines: an overview of ethnomedicines in China

null

《医学前沿(英文)》 2016年 第10卷 第2期   页码 166-177 doi: 10.1007/s11684-016-0448-9

摘要:

In the long history of disease prevention and treatment, ancestral populations worldwide have gained knowledge and experiences in traditional medicines. For instance, ethnomedicines of Chinese ethnic minorities constitute an important part of traditional medicines. In our study, we firstly clarified the concept of ethnomedicines and the connotations of ethnopharmacology. The particularity of ethnomedicine research were then summed up, and the development profiles of the ethnomedicines of Chinese ethnic minorities were discussed by investigating the current status and existing problems. On this basis, we abstracted the innovative development path of ethnomedicines for the first time, which was found to follows:resource study → standardized development research → industrialization of the achievements and efforts for internationalization. We found that platform establishment and team training are keys to achieving innovative development. Hence, this study provided a basis for ethnomedicine development.

关键词: traditional medicines     ethnomedicines     Chinese ethnic minorities     ethnopharmacology     research mode     innovative development path    

Tool path strategy and cutting process monitoring in intelligent machining

Ming CHEN, Chengdong WANG, Qinglong AN, Weiwei MING

《机械工程前沿(英文)》 2018年 第13卷 第2期   页码 232-242 doi: 10.1007/s11465-018-0469-y

摘要:

Intelligent machining is a current focus in advanced manufacturing technology, and is characterized by high accuracy and efficiency. A central technology of intelligent machining—the cutting process online monitoring and optimization—is urgently needed for mass production. In this research, the cutting process online monitoring and optimization in jet engine impeller machining, cranio-maxillofacial surgery, and hydraulic servo valve deburring are introduced as examples of intelligent machining. Results show that intelligent tool path optimization and cutting process online monitoring are efficient techniques for improving the efficiency, quality, and reliability of machining.

关键词: intelligent machining     tool path strategy     process optimization     online monitoring    

Biologically inspired model of path integration based on head direction cells and grid cells

Yang ZHOU,De-wei WU

《信息与电子工程前沿(英文)》 2016年 第17卷 第5期   页码 435-448 doi: 10.1631/FITEE.1500364

摘要: Some neurons in the brain of freely moving rodents show special firing pattern. The firing of head direction cells (HDCs) and grid cells (GCs) is related to the moving direction and distance, respectively. Thus, it is considered that these cells play an important role in the rodents’ path integration. To provide a bionic approach for the vehicle to achieve path integration, we present a biologically inspired model of path integration based on the firing characteristics of HDCs and GCs. The detailed implementation process of this model is discussed. Besides, the proposed model is realized by simulation, and the path integration performance is analyzed under different conditions. Simulations validate that the proposed model is effective and stable.

关键词: Head direction cells (HDCs)     Grid cells (GCs)     Path integration     Bionic navigation    

Ion conduction path in composite solid electrolytes for lithium metal batteries: from polymer rich to

Zhouyu ZHANG, Hao CHEN, Zhenglin HU, Shoubin ZHOU, Lan ZHANG, Jiayan LUO

《能源前沿(英文)》 2022年 第16卷 第5期   页码 706-733 doi: 10.1007/s11708-022-0833-9

摘要: Solid-state electrolytes (SSEs) can address the safety issue of organic electrolyte in rechargeable lithium batteries. Unfortunately, neither polymer nor ceramic SSEs used alone can meet the demand although great progress has been made in the past few years. Composite solid electrolytes (CSEs) composed of flexible polymers and brittle but more conducting ceramics can take advantage of the individual system for solid-state lithium metal batteries (SSLMBs). CSEs can be largely divided into two categories by the mass fraction of the components: “polymer rich” (PR) and “ceramic rich” (CR) systems with different internal structures and electrochemical properties. This review provides a comprehensive and in-depth understanding of recent advances and limitations of both PR and CR electrolytes, with a special focus on the ion conduction path based on polymer-ceramic interaction mechanisms and structural designs of ceramic fillers/frameworks. In addition, it highlights the PR and CR which bring the leverage between the electrochemical property and the mechanical property. Moreover, it further prospects the possible route for future development of CSEs according to their rational design, which is expected to accelerate the practical application of SSLMBs.

关键词: composite solid electrolytes     active filler/framework     ion conduction path     interphase compatibility     multilayer design    

移动机器人障碍躲避的最佳路径

郭戈

《中国工程科学》 2003年 第5卷 第5期   页码 70-75

摘要:

提出一种以障碍物和机器人位置和速度等信息为基础的障碍躲避方法,重点探讨了确定性环境下障碍躲避和转弯过程中机器人应遵循的合理路径问题,并通过证明指出了给定环境条件下实现转弯和障碍躲避的最佳路径。仿真实验表明,该结论简单有效,便于实施,具有较高的应用价值。

关键词: 移动机器人     超声波传感器     障碍躲避     路径规划     最佳路径    

Strategy for robot motion and path planning in robot taping

Qilong YUAN,I-Ming CHEN,Teguh Santoso LEMBONO,Simon Nelson LANDÉN,Victor MALMGREN

《机械工程前沿(英文)》 2016年 第11卷 第2期   页码 195-203 doi: 10.1007/s11465-016-0390-1

摘要:

Covering objects with masking tapes is a common process for surface protection in processes like spray painting, plasma spraying, shot peening, etc. Manual taping is tedious and takes a lot of effort of the workers. The taping process is a special process which requires correct surface covering strategy and proper attachment of the masking tape for an efficient surface protection. We have introduced an automatic robot taping system consisting of a robot manipulator, a rotating platform, a 3D scanner and specially designed taping end-effectors. This paper mainly talks about the surface covering strategies for different classes of geometries. The methods and corresponding taping tools are introduced for taping of following classes of surfaces: Cylindrical/extended surfaces, freeform surfaces with no grooves, surfaces with grooves, and rotational symmetrical surfaces. A collision avoidance algorithm is introduced for the robot taping manipulation. With further improvements on segmenting surfaces of taping parts and tape cutting mechanisms, such taping solution with the taping tool and the taping methodology can be combined as a very useful and practical taping package to assist humans in this tedious and time costly work.

关键词: robot taping     path planning     robot manipulation     3D scanning    

中国式现代化背景下西南山区数字农业发展研究

马红梅,金碧君,罗陶,丁龙,宋宝安

《中国工程科学》 2023年 第25卷 第4期   页码 50-58 doi: 10.15302/J-SSCAE-2023.07.011

摘要:

数字技术是我国农业现代化发展的重要驱动力量,利用数字技术发展西南山区现代农业,是全面振兴乡村、实现共同富裕的可行途径,实现中国式现代化的必然要求。本文阐述了西南山区数字农业的概念内涵与运行逻辑,基于公开统计数据和实地调研资料,从相关主体协调性、基础设施建设、生产销售环节应用、人口结构等方面分析了西南山区数字农业发展现状,进一步厘清了发展面临的现实困境。研究建议,健全农村多元合作机制、挖掘数字农业发展深度,强化数字基础设施建设、提高数字农业发展广度,拓宽数字农业应用场景、扩大数字农业发展宽度,加强数字人才体系培养、提升数字农业发展水平,以此驱动新形势下西南山区数字农业深化发展。

关键词: 西南山区;数字农业;数字技术;基础设施;中国式现代化    

Thoughts on strategies and paths to achieve carbon peaking and carbon neutrality in China

《能源前沿(英文)》 2023年 第17卷 第3期   页码 324-331 doi: 10.1007/s11708-023-0883-7

摘要: First, a brief introduction is made to the four basic judgments and understandings of the goals of “carbon peaking and carbon neutrality.” Then, an in-depth elaboration is provided on the eight major strategies for achieving the goals of “carbon peaking and carbon neutrality,” including conservation and efficiency priority, energy security, non-fossil energy substitution, re-electrification, resource recycling, carbon sequestration, digitalization and cooperation between countries. Next, eight major implementation paths for achieving the goals of “carbon peaking and carbon neutrality” are discussed in detail, including industrial restructuring; building a clean, low-carbon, safe and efficient energy system, and renewing the understanding of China’s energy resource endowment; accelerating the construction of a new-type power system with a gradually growing proportion of new energy, and realizing the “possible triangle” of high-quality energy system development; utilizing electrification and deep decarbonization technologies to promote the orderly peaking and gradual neutralization of carbon emissions in the industrial sector; promoting the low-carbon transition of transportation vehicles to achieve carbon peaking and carbon neutrality in the transportation sector; focusing on breaking through key green building technologies to achieve zero carbon emissions from building electricity and heat; providing a strong technical support for carbon removal to achieve carbon neutrality; accelerating the construction of the integrated planning and assessment mechanism for pollution and carbon reduction, establishing a sound strategy, planning, policy and action system, and optimizing the carbon trading system. Afterwards, it is particularly pointed out that the realization of the goals of “carbon peaking and carbon neutrality” cannot be separated from the support of sci-tech innovation. Finally, it is stressed that carbon neutrality is not the end, but an important milestone. If viewed from the perspective of future energy, the significance and historical status of the goals of “carbon peaking and carbon neutrality” will be more understandable.

关键词: carbon peaking and carbon neutrality     strategy     implementation path     important sci-tech innovation implementation path    

A valveless piezoelectric pump with novel flow path design of function of rectification to improve energy

《机械工程前沿(英文)》 2022年 第17卷 第3期 doi: 10.1007/s11465-022-0685-3

摘要: Existing valveless piezoelectric pumps are mostly based on the flow resistance mechanism to generate unidirectional fluid pumping, resulting in inefficient energy conversion because the majority of mechanical energy is consumed in terms of parasitic loss. In this paper, a novel tube structure composed of a Y-shaped tube and a ȹ-shaped tube was proposed considering theory of jet inertia and vortex dissipation for the first time to improve energy efficiency. After verifying its feasibility through the flow field simulation, the proposed tubes were integrated into a piezo-driven chamber, and a novel valveless piezoelectric pump with the function of rectification (NVPPFR) was reported. Unlike previous pumps, the reported pump directed the reflux fluid to another flow channel different from the pumping fluid, thus improving pumping efficiency. Then, mathematical modeling was established, including the kinetic analysis of vibrator, flow loss analysis of fluid, and pumping efficiency. Eventually, experiments were designed, and results showed that NVPPFR had the function of rectification and net pumping effect. The maximum flow rate reached 6.89 mL/min, and the pumping efficiency was up to 27%. The development of NVPPFR compensated for the inefficiency of traditional valveless piezoelectric pumps, broadening the application prospect in biomedicine and biology fields.

关键词: composite tube     valveless piezoelectric pump     rectification     energy efficiency    

标题 作者 时间 类型 操作

Study on the Path of “Near-zero Emission” Coal-based Clean Energy Ecosystem Development

Zhang Yu-zhuo

期刊论文

Innovative development path of ethnomedicines: the interpretation of the path

null

期刊论文

动态二叉树表示环境的A*算法及其在足球机器人路径规划中的实现

唐平,杨宜民

期刊论文

Rise of aluminum-chalcogen batteries: A promising path to sustainable energy storage

期刊论文

中国公司治理的路径依赖——理论与实证分析

邴红艳

期刊论文

Extended model predictive control scheme for smooth path following of autonomous vehicles

期刊论文

Innovative development path of ethnomedicines: an overview of ethnomedicines in China

null

期刊论文

Tool path strategy and cutting process monitoring in intelligent machining

Ming CHEN, Chengdong WANG, Qinglong AN, Weiwei MING

期刊论文

Biologically inspired model of path integration based on head direction cells and grid cells

Yang ZHOU,De-wei WU

期刊论文

Ion conduction path in composite solid electrolytes for lithium metal batteries: from polymer rich to

Zhouyu ZHANG, Hao CHEN, Zhenglin HU, Shoubin ZHOU, Lan ZHANG, Jiayan LUO

期刊论文

移动机器人障碍躲避的最佳路径

郭戈

期刊论文

Strategy for robot motion and path planning in robot taping

Qilong YUAN,I-Ming CHEN,Teguh Santoso LEMBONO,Simon Nelson LANDÉN,Victor MALMGREN

期刊论文

中国式现代化背景下西南山区数字农业发展研究

马红梅,金碧君,罗陶,丁龙,宋宝安

期刊论文

Thoughts on strategies and paths to achieve carbon peaking and carbon neutrality in China

期刊论文

A valveless piezoelectric pump with novel flow path design of function of rectification to improve energy

期刊论文