How can technology and efficiency alleviate the dilemma of economic growth and carbon emissions in China's industrial economy? A metafrontier decoupling decomposition analysis

This paper attempts to explore the decoupling relationship and its drivers between industrial economic increase and energy-related CO_(2) emissions(ICE). Firstly, the decoupling relationship was evaluated by Tapio index. Then, based on the DEA meta-frontier theory framework which taking into account the regional and industrial heterogeneity and index decomposition method, the driving factors of decoupling process were explored mainly from the view of technology and efficiency. The results show that during2000-2019, weak decoupling was the primary state. Investment scale expansion was the largest reason hindering decoupling process of industrial increase from ICE. Both energy saving and production technology achieved significant progress, which facilitated the decoupling process. Simultaneously, the energy technology gap and production technology gap among regions have been narrowed, and played a role in promoting decoupling process. On the contrary, both scale economy efficiency and pure technical efficiency have inhibiting effects on decoupling process. The former indicates that the scale economy of China's industry was not conducive to improve energy efficiency and production efficiency, while the latter indicates that resource misallocation problem may exist in both energy market and product market.

China's Maritime Governance:Practical Evolution and Theoretical Construction

Increasingly engaged in maritime governance,China has developed its distinct vision and gradually established a complete theoretical system surrounding it.In terms of discourse,China has proposed a collection of concepts and ideas including a maritime community with a shared future,the 2lst Century Maritime Silk Road,Blue Partnerships,and marine ecological civilization.In terms of connotations,China champions such values as lasting peace,common prosperity,openness and inclusiveness,and cleanness and beautifulness.Exteriorly and interiorly,we can observe the unique character of China's vision concerning maritime governance,which will continue to upgrade and bear fruit in future practices,boosting the development of Chinese maritime governance theories,multilateral maritime cooperation,and ocean-related international legislation.Guided by its vision,China is expected to contribute more to global maritime security and marine ecological civilization.

Multi-scenario Simulation and Spatial-temporal Analysis of LUCC in China's Coastal Zone Based on Coupled SD-FLUS Model

Increased human activities in China's coastal zone have resulted in the depletion of ecological land resources.Thus,conducting current and future multi-scenario simulation research on land use and land cover change(LUCC)is crucial for guiding the healthy and sustainable development of coastal zones.System dynamic(SD)-future land use simulation(FLUS)model,a coupled simulation model,was developed to analyze land use dynamics in China's coastal zone.This model encompasses five scenarios,namely,SSP1-RCP2.6(A),SSP2-RCP4.5(B),SSP3-RCP4.5(C),SSP4-RCP4.5(D),and SSP5-RCP8.5(E).The SD model simulates land use demand on an annual basis up to the year 2100.Subsequently,the FLUS model determines the spatial distribution of land use for the near term(2035),medium term(2050),and long term(2100).Results reveal a slowing trend in land use changes in China's coastal zone from 2000–2020.Among these changes,the expansion rate of construction land was the highest and exhibited an annual decrease.By 2100,land use predictions exhibit high accuracy,and notable differences are observed in trends across scenarios.In summary,the expansion of production,living,and ecological spaces toward the sea remains prominent.Scenario A emphasizes reduced land resource dependence,benefiting ecological land protection.Scenario B witnesses an intensified expansion of artificial wetlands.Scenario C sees substantial land needs for living and production,while Scenario D shows coastal forest and grassland shrinkage.Lastly,in Scenario E,the conflict between humans and land intensifies.This study presents pertinent recommendations for the future development,utilization,and management of coastal areas in China.The research contributes valuable scientific support for informed,long-term strategic decision making within coastal regions.

Cenozoic giant coal-bearing basin belt discovered in China's sea and its adjacent areas

Sea area is an important area of oil and gas exploration in China.It has been found that China's sea area mainly consists of coal type oil and gas,and the exploration of coal-bearing series source rocks has become an important part of oil and gas exploration there.Through years of comprehensive geological research in China's sea area,it has been revealed that it has undergone multiple occurrences of tectonic opening and closing movements in varying degrees in the Paleogene,forming 26 Cenozoic sedimentary basins of various types,such as active continental margin,passive continental margin,transitional continental margin and drift rift basins.In the present study,it is observed for the first time that coal type source rocks are mainly developed in 14 continental margin basins in China's sea area,revealing that a very large C-shaped coal-bearing basin group developed there in the Cenozoic.Next,based on the coupling analysis of paleoclimate,paleobotany,paleogeography and paleostructure,it is observed that there are five coal-forming periods in China's sea area,namely the Paleocene,Eocene,early Oligocene,late Oligocene and Miocene-Pliocene,and the coal-forming age is gradually new from north to south.It is also found that the coal seams in the sea area are mainly developed in three coal-forming environments in Cenozoic,namely delta,fan delta and tidal flat-lagoon.The coal seams developed in different environments are characterized by thin thickness,many layers and poor stability.However,the coal-bearing series source rocks in China's sea area have a wide distribution range,very high thickness and large amount,thus forming a material basis for the formation of rich coal type oil and gas.

Thinking and Research on County-level Territorial Spatial Plans in the Territorial Spatial Plan System:A Case Study of Jiangxi Province

The establishment of the territorial spatial plan system is an important space reform act to meet the new era in China.The reform of territorial spatial plans according to classification is in line with the characteristics of China’s current territorial spatial administration and urban development.At present,China’s provincial and municipal territorial spatial plans have been publicized,and county-level territorial spatial plans are being approved one after another,while the compilation of township-level territorial spatial plans is being carried out in an orderly manner.In this paper,based on the historical background of the establishment of territorial spatial plan system integrating“multiple plans”,the background of territorial spatial plans and the important role of county-level territorial spatial plans were first elaborated,and then the progress of the compilation of county-level territorial spatial plans in Jiangxi Province was sorted out.Finally,the problems existing in the compilation were discussed,and corresponding suggestions were put forward to provide a certain reference for the construction of a scientific and reasonable territorial spatial plan system.

Evaluation of 3D-CRT and VMAT Radiotherapy Plans for Left Breast Cancer with Regional Lymph Nodes Irradiation

Introduction: Radiation therapy after breast surgery is an integral part of the treatment of early breast cancer. The goal of radiation therapy is to achieve the best possible coverage of the planning target volume (PTV), while reducing the dose to organs at risk (OARs) which are normal tissues whose sensitivity to irradiation could cause damage that can lead to modification of the treatment plan. In the last decade, radiation oncologist started to use the Intensity Modulated Radiotherapy (IMRT) and Volumetric Modulated Arc Therapy (VMAT) for irradiating the breast, in order to achieve better dose distribution and target dose to the PTV and OAR. The aim of this study is to compare 2 external radiotherapy techniques (VMAT vs 3D) for patients with node-positive left breast cancer. Patients and Methods: We randomly selected 10 cases of postoperative radiotherapy for breast cancer in our hospital. The patients are all female, the average age was 45.4 years old, and the primary lesions are left breast. The ANOVA test was used to compare the mean difference between subgroups, and the p value Results: Dose volume histogram (DVH) was used to analyze each evaluation dose of clinical target volume (CTV) and organs at risk (OARs). Compared to 3DCRT plans, VMAT provided more uniform coverage to the breast and regional lymph nodes. The max point dose for tVMAT was lower on average (106.4% for VMAT versus 109% for 3DCRT). OAR sparing was improved with tVMAT, with a lower average V17Gy for the left lung (27.91% for VMAT versus 30.04% for 3DCRT, p and lower for V28Gy (13.75% for VMAT versus 22.34% for 3DCRT, p = 0.01). We also found a lower V35Gy for the heart on VMAT plan (p = 0.02). On the contrary, dose of contralateral breast was lower in 3DCRT than VMAT (0.59 Gy vs 3.65 Gy, p = 0.00). Conclusion: The both types of plans can meet the clinical dosimetry demands of postoperative radiotherapy for left breast cancer. The VMAT plan has a better conformity, but 3CDRT can provide a lower dose to the contralateral organs (breast and lung) to avoid the risk of secondary cancers.

Development Trend of Energy and Key Points of Ecological Environment Protection in China's "14^(th) Five-Year Plan" Period

From the changes of total primary energy consumption and primary energy consumption structure,installed capacity and power generation of secondary energy(electricity),etc.,the development characteristics of China's energy structure in the"13^(th) Five-Year Plan"period was comprehensively studied.Combined with the complexity of the international situation,the diversification of the domestic energy system,the intelligence of the energy industry,etc.,the situation and challenges faced by China's energy development were deeply discussed in the four aspects of energy security,energy low-carbon transformation,energy system efficiency,and energy technology level.From the angle of ecological environment protection,the development of energy in the"14^(th) Five-Year Plan"period in China was analyzed,and some policies and measures were put forward.

空间系外行星探测与研究进展

系外行星学科是近30年来迅速发展起来的一门新兴学科.其主要研究内容和目标包括,通过发展各种探测技术探测太阳系外行星,分析行星轨道、成分、大气性质,评估行星的宜居性,统计行星的分布规律,从理论和观测上揭示行星系统的形成和动力学演化机制.系外行星的研究对于回答宇宙中是否存在其他生命以及人类在宇宙中的地位和意义等问题具有重要意义.随着21世纪空间探测技术的发展,系外行星的研究进入了崭新及快速的发展阶段.本文分析了系外行星研究领域的发展态势,凝练中国在系外行星未来空间探测发展的重点领域,优化学科布局,以推进系外行星研究的快速稳步发展.

协同治理视角下国土空间规划实践与思考——以江苏为例

国土空间规划是完善现代化治理手段、提升空间治理能力、推动区域协同发展的重要工具。在总结跨地区、全流程、多主体的协同治理框架下,基于江苏省市县国土空间总体规划多层次同步编制的实践,探讨国土空间总体规划推动区域协同治理的有效路径。跨区域协同治理通过城市定位协同、生态环境治理协同、交通协同、市政基础设施协同、文化协同等手段,实现不同空间协同治理目标的落实;全流程协同治理通过建立常态化沟通磋商机制,实现省市县的纵向传导反馈和多部门、多条线的横向寻求共识,化解跨界地区矛盾;多主体协同治理侧重制度建构,保障行政力、市场力和社会力的多元参与。

中国大气污染防治政策与空气污染治理——基于城市级面板数据的实证研究

2013年颁布实施的《大气污染防治行动计划》是我国首个针对环境突出问题开展综合治理的行动计划;为巩固治理效果,应对动态变化的环境问题,2018年国务院进一步发布了《打赢蓝天保卫战三年行动计划》。研究利用中国258个城市2013年1月至2020年9月日度空气污染数据,实证检验了上述两阶段政策对空气质量的影响,并从不同污染物治理效果、时间和区域异质性等角度分析了政策效应的差异。结果指出:第一,“大气十条”和“蓝天保卫战”均显著降低了AQI、PM_(2.5)、PM_(10)、SO_(2)、NO_(2)、CO;第二,相比“大气十条”,“蓝天保卫战”对NO_(2)的减排效应更高,且实现对O_(3)的协同治理;第三,“大气十条”和“蓝天保卫战”对各污染物的减排效应因供暖时期、地区能源资源禀赋呈现出较强的异质性特征。

计及灾后恢复全过程储能应急响应能力的配电网韧性规划

储能因响应快、灵活性高的特点,已成为可再生能源发展必不可少的支撑技术,不仅具有削峰填谷、改善电能质量的作用,在灾后恢复过程中的应急响应能力同样不可忽视。提出了一种计及灾后恢复全过程储能应急响应能力的配电网韧性规划方法,构建了同时考虑网架增强和储能配置策略的配电网韧性增强双层规划模型,系统地刻画了极端灾害发生后配电网网架重构、设备抢修及复电等灾后恢复全过程的源-网-荷-储互动模式场景。最后,通过IEEE33节点系统的算例分析表明,所提方法能更充分地挖掘储能的应急响应潜力,有效提高增强性规划决策的精准度,获得更佳的投资回报。

从空间规划体系到国土空间体系——兼析国土空间体系构建下的国土空间治理趋向

研究目的:分析国家治理体系和治理能力现代化背景下,国土空间体系表述的形成脉络及内在逻辑,并从国土空间体系构建视角探讨国土空间治理的未来趋向。研究方法:综合分析法与对比分析法。研究结果:国土空间具有“区域”和“要素”双重特性,建立空间规划体系旨在解决传统国土空间治理的“区域”“要素”缺乏统筹问题。从空间规划体系、国土空间规划体系到国土空间体系的演变,实质上是不断推进迈向高质量发展、强化“区域—要素”统筹的国土空间治理。在构建国土空间体系的指引下,国土空间治理既要聚焦国土空间的高质量发展,绘就国土空间协调发展蓝图,又要完善主体功能区战略和制度,做好国土空间治理的“区域—要素”统筹。研究结论:面向国土空间体系构建,国土空间治理未来应做好国土空间高质量发展导向下的“区域—要素”统筹治理。

日本脑计划实施的经验及启示

目前脑计划已成为主要发达国家科技竞争的重点领域。日本脑计划启动时间较早,已取得了较丰富的经验与成果,可为中国脑计划的实施和优化提供经验借鉴。解析日本脑计划的发起过程、保障措施、管理结构以及主要研究成果等,发现日本脑计划是在充分的科学论证基础上提出,政府提供了稳定且充足的经费支持,由领域内号召力和影响力较高的机构统领和协调实施,人才国际化始终作为团队建设和人才政策的重要标准,同时政策体系上既有兼顾长期的战略规划又有专项的人才支持政策和脑库建设保护法律等全方位保障其顺利实施。借鉴日本经验,未来中国脑计划的实施战略可结合自身发展实际,将团队建设的国际化、资金保障的稳定性、科研伦理管理的规范化、参与机构的协调性等作为主要优化方向。

致力中国本土规划研究推进优秀传统继承创新

传承弘扬中国优秀规划传统,在城市规划建设中加强历史文化保护传承,是文化复兴时代迫切需要完成的历史使命.回顾总结团队对本土城市规划理论的长期探索与实践历程,围绕传承中国本土规划学术体系、构建根植于中国传统的城乡历史文化保护传承体系、搭建新时代城市文化空间体系、加强现代规划设计中的本土规划传承等方面,探讨新时代中国规划传统继承弘扬和城市历史文化保护传承的路径方法.

跟踪算法下的果树修剪机器人路径规划设计

以果树修剪机器人为研究对象,基于轨迹跟踪算法对修剪机器人进行作业路径规划,并分别与传统的往复式路径规划算法和跟踪算法进行仿真对比实验分析。分析结果表明:与传统往复式路径规划算法相比,修剪机器人作业过程中漏剪率降低3%,重复率降低2.5%;与传统跟踪式路径规划算法相比,修剪机器人作业过程转角范围增大36°,横向轨迹误差降低600mm。

基于RRT^(*)-DR算法的机械臂避障路径规划

为使机械臂在障碍物环境下快速规划较优路径,提出了一种基于动态区域采样的改进RRT^(*)-DR路径规划算法,将整个规划过程分为快速探索路径和优化初始路径两个步骤。首先利用半目标导向扩展快速探索,找到连接起始点和目标点的路径。随后利用动态区域采样方法,始终在当前最优路径的周边范围内采样,优先密化当前最优路径附近的节点树,节省计算资源,使初始路径经过迭代快速向渐进最优路径收敛。同时,提出一种近障碍节点变步长机制,有选择性地缩短靠近障碍节点的扩展步长,可有效减少碰撞检测失败次数,提高算法效率。最后,在MATLAB和ROS系统下进行路径规划算法仿真,结果表明RRT^(*)-DR算法可在更短时间内实现路径规划,同时有效缩小路径代价。进一步通过实体机器人路径规划避障实验,验证了该算法的实用性和有效性。

有计划的去增长:生态社会主义与人类可持续发展

面对日益严峻的全球生态危机,“去增长”作为重要的政治经济学方法,拒斥将无限制的经济增长视为人类进步的唯一准绳,提出了转向零净资本的可持续发展理念,为生态社会主义注入了新的活力。这种发展理念把可持续的人类发展置于破坏性的经济增长模式之上,一定程度上凸显了社会计划和经济计划对于实现实质性平等和生态可持续性的目标的重要性。在马克思主义“去增长共产主义”中,资本积累将为社会的高质量发展所取代,资本将致力于生产满足人们需求的使用价值。具体表现为两个方面:一是强调社会计划对于生产资料再生产和资源分配的突出作用;二是彻底变革社会关系,摆脱垄断资本、浪费和积累的旧体系,转向满足人类社会基本需求、同时维持人与自然可持续发展的新体系。“去增长”方法显示出社会主义制度在推进生态环境保护、实现人与自然和谐共生目标的独特优势。

职业教育国家规划教材内容特征分析——以财经商贸大类为例

内容是教材的灵魂。采用内容分析法,从教材设计理念、教材结构、教材设计、纸数融合四个维度,对财经商贸大类“十四五”职业教育国家规划教材内容特征进行分析。研究发现:认可能力本位教材设计理念,与标准对接不足;“章—节”式目录结构仍占较大比重,教材内容主题分歧明显;标题式项目、理实叠加现象突出;数字资源以二维码融入微课视频为主,存在不一致、使用率不高问题。据此,提出提升高职专业教学标准适应性、内容描述详尽度和时效性,重视专业核心课程教材的技术理论知识开发,以实践性问题为纽带整合理论与实践知识,结合课程内容特性与学习者需求开发教材配套的数字化资源等优化对策。

广州国土空间总体规划—详细规划传导路径的优化思考

梳理广州不同阶段总体规划—详细规划传导体系的演变,结合国土空间规划改革实践,认为规划传导体系需适应超大城市治理逻辑,从技术与行政闭合、保护与开发并进、规划与规则关联、精准与灵活协同的视角出发,着重优化5类管控要素的传导路径:一是指标传导,需加强不同空间尺度的指标转译工作,注重指标传导与实施监测过程的协同;二是公益性要素传导,宜以“定界”“定位”“定量”“定标准”的多元方式,区分控制线和设施等要素刚性管控的层次性;三是空间战略传导,应推进补充性文件制定,深化核心战略资源的空间细化与管控要求等;四是主导功能传导,建议加快用途清单和政策清单制定,保障“主体功能分区—一级规划分区—二级规划分区—用地用海分类”用途传导的一致性;五是空间容量传导,应重视“人—地—房”承载力的协同传导,提升空间容量传导的科学性。