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中国碳达峰碳中和的政策路径——基于扎根理论和制度语法学的双重分析

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中国人口·资源与环境 2022年第11期32卷 19-29页

作者：周成钱再见南京师范大学公共管理学院江苏南京210023

全球气候变暖正逐渐演变为影响人类未来发展的严重危机。作为世界第二大经济体,中国积极参与全球气候治理,提出将在2030年前碳达峰,2060年前实现碳中和,并陆续出台“1+N”“双碳”政策体系。该研究通过两种典型的质性研究方法——扎根... 详细信息

全球气候变暖正逐渐演变为影响人类未来发展的严重危机。作为世界第二大经济体,中国积极参与全球气候治理,提出将在2030年前碳达峰,2060年前实现碳中和,并陆续出台“1+N”“双碳”政策体系。该研究通过两种典型的质性研究方法——扎根理论和制度语法学,对23份共计16万余字,来自中共中央、国务院及相关部委和省份颁布的“双碳”政策文本进行解码与分析,廓析中国“双碳”政策路径的要素结构和功能轮廓,厘定不同政策路径下的组态结构和规制强度。通过扎根理论研究发现中国“双碳”政策路径已然十分全面完整,其中:行政机制下的政策路径包括高能耗高排放产业管控、法规与标准体系、重点行业降碳治理、能耗总量与强度控制(双控)、生态碳汇;市场机制下的政策路径包括循环经济发展、能源转型发展、碳排放权交易市场、绿色金融发展、绿色转型发展。制度语法学分析结果表明:“双碳”政策路径以ADIC规范性陈述为主(177个,占比52%),其次是AIC策略性陈述(130个,占比38%),而ADICO规则性陈述最少,仅33个,占比10%。实现“双碳”目标面临时间紧、任务重的双重压力,ADICO的制度语法结构是最理想的政策陈述范式,因为该结构的政策规制强度更大,也更容易实现其治理效能。毫无疑问,政策规制是有效缓解“双碳”治理压力的重要抓手,更是确保实现“双碳”治理效能的确证性手段。政策规制主要面向高耗能高排放为代表的工业领域,依托自上而下的科层制组织,以政治动员和行政法令为手段,推进高碳领域的“双碳”治理。通过进一步构建“双碳”政策规制机制的理论框架,按照规制强度将“双碳”治理分为“强制性治理”和“柔性治理”,提出两种“双碳”治理范式背后的底层逻辑正是行政机制下的科层动员和市场机制下的资源配置。同时,随着未来“双碳”目标的逐步实现及碳排放与经济发展的逐渐脱钩,治理逻辑需要从“强制性治理”逐步转向“柔性治理”,从“行政科层制动员”转为“市场资源均衡配置”。

关键词：碳达峰碳中和政策路径扎根理论制度语法学

Spectrally multiplexed and bright entangled photon pairs in a lithium niobate microresonator

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Science China(Physics,Mechanics & Astronomy) 2022年第9期65卷 3-9页

作者： Bo-Yu Xu Li-Kun Chen Jin-Tian Lin Lan-Tian Feng Rui Niu Zhi-Yuan zhou Ren-Hong Gao Chun-Hua Dong Guang-Can Guo Qi-Huang Gong Ya cheng Yun-Feng Xiao Xi-Feng Ren CAS Key Laboratory of Quantum Information University of Science and Technology of ChinaHefei 230026China State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics School of PhysicsPeking UniversityBeijing 100871China State Key Laboratory of High Field Laser Physics and CAS Center for Excellence in Ultra-intense Laser Science Shanghai Institute of Optics and Fine Mechanics(SIOM)Chinese Academy of Sciences(CAS)Shanghai 201800China CAS Synergetic Innovation Center of Quantum Information&Quantum Physics University of Science and Technology of ChinaHefei 230026China State Key Laboratory of Precision Spectroscopy East China Normal UniversityShanghai 200062China Collaborative Innovation Center of Extreme Optics Shanxi UniversityTaiyuan 030006China

On-chip bright quantum sources with multiplexing ability are extremely high in demand for integrated quantum networks with unprecedented scalability and ***,we demonstrate a bright and broadband biphoton quantum source with spectral multiplexing generated in a lithium niobate microresonator *** introducing the conventional domain poling,the on-chip microdisk produces photon pairs covering a broad bandwidth promised by natural phase matching in spontaneous parametric down ***,the multiplexed photon pairs are characterized by 30 nm bandwidth limited by the filtering system,providing over 40 multiplexing channels with a 0.8 nm channel ***,the generation rate reaches 5.13 MHz/μW with a coincidence-to-accidental ratio up to 804,and the quantum source manifests a high purity with a heralded single photon correlation g^((2))_(H)(0)=0.0098±***,the energy-time entanglement is demonstrated with an excellent interference visibility of 96.5%±2%.Such a quantum source at the telecommunication band paves the way for high-dimensional entanglement and future integrated quantum information systems.

关键词： quantum entangled source spectral multiplexing lithium niobate on insulator microresonator

Central sensibility of human cases with different body mass during oral glucose tolerance test using functional magnetic resonance imaging

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Neural Regeneration Research 2007年第9期2卷 523-527页

作者： Min Chen Yunting Zhang Tiemei Zhang cheng zhou Xiaomeng Wu Kui Cai Zhenghan Yang Wenchao Wang Weifeng Zhao Saying Li Zhi Wang Guozhen Li Department of Radiology Beijing Hospital Ministry of Public Health Beijing 100730 China Department of Radiology General Hospital Tianjin Medical University Tianjin 300070 China Beijing Institute of Geriatrics Beijing Hospital Ministry of Public Health Beijing 100730 China

BACKGROUND： Because of the limitation of technique, there are few researches on regulating function o central hypothalamus by metabolism, especially the researches on real-time function. OBJECTIVE： To evaluate the response of hypothalamus to oral glucose tolerance test （OGTT） in differen body-weighted subjects by using functional magnetic resonance imaging （fMRI） so as to investigate th relationship between the sensitivity of hypothalamus in glycoregulation and disturbance of carbohydrate metabolism. DESIGN： paired design. SETTING： Department of Radiology and Beijing Geriatrics Institute, Beijing Hospital, National Publi Health Bureau. paRTICIpaNTS： A total of twenty healthy volunteers were selected from Beijing Geriatrics Institute National Public Health Bureau, including 10 subjects with obesity （5 males and 5 females; body mass 〉 28.0 kg/m2） and 10 subjects with normal body mass （5 males and 5 females; body mass from 18.5 to 23.9 kg/m2）. All subjects gave written informed consent before participating in the study. METHODS： fMRI study was performed on GE 1.5 T Signa Twinspeed Infinity with Excite. Each voluntee was ingested of glucose during the fMRI scan. T2＊ images were acquired using a single-shot gradient echo （EPI） technique. The parameters of EPI included： TR 3 000 ms, TE 40 ms, Flip angle 90°, field of view （FOV） 24 cm × 24 cm, thickness 5 mm, gap 0 mm, matrix 64 × 64, number of excitation 1. All 10 subjects with normal body mass underwent a repeat fMRI scan after consuming an equivalent amount o water without glucose on a separate day. The procedure for the fMRI scan with water intake was the same a for glucose ingestion. fMRI data were processed with Intensity Averaging Method. MAIN OUTCOME MEASURES： The central response of hypothalamus and feedback orientation during OGTT in different body-weighted subjects. RESULTS： An acute transient decrease of fMRI intensity in posterior inferior and anterior inferior o hypothalamus was observed in all subjec

关键词： hypothalamus magnetic resonance imaging glucose tolerance test

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机载光电跟踪平台伺服系统自抗扰控制

光电工程 2011年第4期38卷 31-36页

作者：周涛朱景成洛阳师范学院物理与电子信息系河南洛阳471022

摩擦非线性造成机载光电跟踪平台伺服系统低速不平稳性,增加了系统的稳态误差。常规PID控制难以满足光电跟踪平台高精度伺服系统的性能要求。采用一种新的二阶离散系统最速控制函数设计自抗扰控制器,将它作为机载光电跟踪平台伺服系统... 详细信息

摩擦非线性造成机载光电跟踪平台伺服系统低速不平稳性,增加了系统的稳态误差。常规PID控制难以满足光电跟踪平台高精度伺服系统的性能要求。采用一种新的二阶离散系统最速控制函数设计自抗扰控制器,将它作为机载光电跟踪平台伺服系统的位置环控制器。实验结果表明,当系统跟踪幅值为0.5°、频率为0.159Hz的正弦输入信号时,在0.5s之后,采用自抗扰控制的光电跟踪平台伺服系统的位置跟踪误差小于±(4.1×10-3)°,速度跟踪误差小于±0.024°/s,说明该自抗扰控制器有效地补偿了摩擦非线性,提高了伺服系统的位置和速度跟踪精度。

关键词：光电跟踪平台伺服系统自抗扰控制器摩擦非线性

Resveratrol reduces intracellular reactive oxygen species levels by inducing autophagy through the AMPK-mTOR pathway

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Frontiers of Medicine 2018年第6期12卷 697-706页

作者： Jun Song Yeping Huang Wenjian Zheng Jing Yan Min cheng Ruxing Zhao Li Chen cheng Hu Weiping Jia Shanghai Diabetes Institute Shanghai Key Laboratory of Diabetes MellitusShanghai Key Clinical Center for Metabolic DiseasesShanghai Jiao Tong University Affiliated Sixth People's HospitalShanghai 200233China Department of Endocrinology Qilu Hospital of Shandong UniversityJinan 250012China Department of Endocrinology Shanghai East HospitalTongffi University School of MedicineShanghai 200120China Department of Geriatrics Qingdao Haici Medical Treatment GroupQingdao 266000China Huangdao Disease Prevention and Control Center Qingdao 266555China

Oxidative stress induced by free fatty acid aggravates endothelial injury, which leads to diabetic cardiovascular complications. Reduction of intracellular oxidative stress may attenuate these pathogenic processes. The dietary polyphenol resveratrol reportedly exerts potential protective effects against endothelial injury. This study determined whether resveratrol can reduce the palmitic acid (pa)-induced generation of reactive oxygen species (ROS) and further explored the underlying molecular mechanisms. We found that resveratrol significantly reduced the pa-induced endothelial ROS levels in human aortic endothelial cells. Resveratrol also induced endothelial cell autophagy, which mediated the effect of resveratrol on ROS reduction. Resveratrol stimulated autophagy via the AMP-activated protein kinase (AMPK)-mTOR pathway. Taken together, these data suggest that resveratrol prevents pa-induced intracellular ROS by autophagy regulation via the AMPK-mTOR pathway. Thus, the induction of autophagy by resveratrol may provide a novel therapeutic candidate for cardioprotection in metabolic syndrome.

关键词： resveratrol reactive oxygen species AMPK mTOR autophagy

MIL-88B-Fe-based nanozymes withperoxidase-like activities for theoretical calculation of catalysis

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MIL-88B-Fe-based nanozymes withperoxidase-like activities fo...

Synthesis and Antibacterial Activity of Sulfur-linked Bis-benzothiazoles

中国化学会第二十届全国有机分析及生物分析学术研讨会

作者： LingliLong zhou Xu Maolong Chen Yunhui cheng College of Chemistry and Biological Engineering Changsha University of Science ＆ Technology

＜正＞Nanocatalytic mechanism is central to the exploitation and optimisation of nanomaterial catalysts in a variety of technologically important heterogeneous reactions, such as nanozyme immunoassay and automotive catalysis. Here, we present a catalytic mechanism for nanozyme, calculated as a function of exposure surface and architecture , using atom-level models.

关键词： MIL-88B-Fe biomimetic catalyst peroxidase-like enzyme Material studio

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Synthesis and Antibacterial Activity of Sulfur-linked Bis-be...

基于有限时间理论的临近空间拦截器末制导律PWPF调节器研究

全国第十八届大环化学暨第十届超分子化学学术讨论会

作者： Gopala Lavanya Venkapuram padmavathi cheng-He zhou Sri Venkateswara University Laboratory of Bioorganic & Medicinal Chemistry School of Chemistry and Chemical Engineering Southwest University

＜正＞A series of benzothiazoles were synthesized through convenient and economic synthetic *** the target compounds were characterized by IR,1 H NMR,13 C NMR,and HRMS *** in vitro antibacterial and antifungal activities indicated that some of the synthesized compounds could effectively inhibit the growth of all the tested strains,and even

关键词： Benzothiazole 2.4-Dichloroquinazoline Antimicrobial activity

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航空学报 2018年第1期39卷 268-277页

作者：段美君周荻程大林哈尔滨工业大学航天学院哈尔滨150001 北京宇航系统工程研究所北京100076

针对拦截临近空间高速机动目标,基于有限时间理论,设计了有限时间收敛末制导律和脉冲宽度脉冲频率(PWPF)调节器。首先,介绍了加入PWPF调节器的末制导数学模型及工作原理;其次,设计了有限时间收敛制导律,应用有限时间理论证明了收敛条件... 详细信息

针对拦截临近空间高速机动目标,基于有限时间理论,设计了有限时间收敛末制导律和脉冲宽度脉冲频率(PWPF)调节器。首先,介绍了加入PWPF调节器的末制导数学模型及工作原理;其次,设计了有限时间收敛制导律,应用有限时间理论证明了收敛条件和性质,并推广到推力受限条件下;最后,考虑视线(LOS)角速率快速收敛和发动机最小工作时间要求,设计了PWPF调节器参数。仿真结果表明,视线角速率在制导结束前的有限时间收敛至零,对目标机动具有鲁棒性,具有较高的制导精度,避免了发动机频繁开启,节省了燃料。

关键词：临近空间末制导律有限时间收敛推力受限 PWPF调节器

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乡村生产空间系统要素构成及运行机制研究

地理科学进展 2019年第11期38卷 1655-1664页

作者：周明茗王成西南大学地理科学学院乡村人居环境研究实验室重庆400715 西南山区生态循环农业国家级培训基地重庆400715

乡村生产空间系统是一个客观存在的、典型的人地关系地域系统,具有耗散结构特征。论文以系统论为指导,遵循系统科学的基本思维方法,从学理上对乡村生产空间系统的内涵及要素构成进行辨析,并围绕农村生产关系变革划分了乡村生产空间系统... 详细信息

乡村生产空间系统是一个客观存在的、典型的人地关系地域系统,具有耗散结构特征。论文以系统论为指导,遵循系统科学的基本思维方法,从学理上对乡村生产空间系统的内涵及要素构成进行辨析,并围绕农村生产关系变革划分了乡村生产空间系统的演进历程,在此基础上对乡村生产空间系统的运行机制进行阐释。研究发现,乡村生产空间系统主要由基础要素(资源环境和基础设施)、核心要素(多元经营主体和乡村文化)、驱动要素(资本、技术、信息和市场)和管理要素(制度和政策)4种要素构成;依据乡村生产关系变革、经济体制变迁、城乡关系转变等规律,将新中国成立后乡村生产空间系统的演进历程划分为土地改革运动时期、农业互助合作运动时期、人民公社化运动时期和家庭联产承包责任制时期4个时期,不同时期乡村生产空间系统的要素构成、要素间的联系方式不同,乡村生产空间系统特征表现各异;乡村生产空间系统通过支撑与约束机制、竞争与合作机制以及调控与反馈机制推动自身运行发展。从要素功能、结构关系、协同等视角去审视乡村生产空间系统的运行状态、诊断系统运行的动力机制或障碍因素等,将成为未来乡村生产空间系统研究的重点。

关键词：乡村生产空间系统要素演进历程运行机制