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| 1 | Spatial-temporal changes of Tianjin urban spatial morphology from 1978 to 2004显示文摘拿的分数维的尺寸,紧缩的比率,城市的矩心;城市的轴当城市的空间特征索引,天津城市的城市的区域在一个量的观点在最后 26 年里被调查,;它的特点;变化也在不同时期期间被分析。这些索引,是清楚的不能仅仅科学地;明确地估计城市形态,城市的方向;它的变化;趋势,而且揭开经济的长期的效果;在城市形态上的城市的计划。 | CAI Bofeng ZHANG Zengxiang LIU Bin ZHOU Quanbin | 2007 | Journal of Geographical Sciences2007，17，4： | 14 |
| 2 | Carbon dioxide emissions from cities in China based on high resolution emission gridded data显示文摘Based on the China high resolution emission gridded data(1 km spatial resolution), this article is aimed to create a Chinese city carbon dioxide(CO_2) emission data set using consolidated data sources as well as normalized and standardized data processing methods. Standard methods were used to calculate city CO_2 emissions, including scope 1 and scope 2. Cities with higher CO_2 emissions are mostly in north, northeast, and eastern coastal areas. Cities with lower CO_2 emissions are in the western region. Cites with higher CO_2 emissions are clustered in the Jing-Jin-Ji Region(such as Beijing, Tianjin, and Tangshan), and the Yangtze River Delta region(such as Shanghai and Suzhou).The city per capita CO_2 emission is larger in the north than the south. There are obvious aggregations of cities with high per capita CO_2 emission in the north. Four cities among the top 10 per capita emissions(Erdos, Wuhai, Shizuishan, and Yinchuan) cluster in the main coal production areas of northern China. This indicates the significant impact of coal resources endowment on city industry and CO_2 emissions. The majority(77%) of cities have annual CO_2 emissions below 50 million tons. The mean annual emission, among all cities, is 37 million tons. Emissions from service-based cities, which include the smallest number of cities, are the highest. Industrial cities are the largest category and the emission distribution from these cities is close to the normal distribution. Emissions and degree of dispersion, in the other cities(excluding industrial cities and service-based cities), are in the lowest level. Per capita C02 emissions in these cities are generally below 20 t/person(89%) with a mean value of 11 t/person. The distribution interval of per capita CO_2 emission within industrial cities is the largest among the three city categories. This indicates greater differences among per capita CO_2 emissions of industrial cities. The distribution interval of per capita CO_2 emission of other cities is the lowest, indicating smaller differences of per capita CO_2 emissions among this city category. Three policy suggestions are proposed: first, city CO_2 emission inventory data in China should be increased,especially for prefecture level cities. Second, city responsibility for emission reduction, and partitioning the national goal should be established, using a bottom-up approach based on specific CO_2emission levels and potential for emission reductions in each city. Third, comparative and benchmarking research on city CO_2 emissions should be conducted, and a Top Runner system of city CO_2emission reduction should be established. | Bofeng Cai Jinnan Wang Shuying Yang Xianqiang Mao Libin Cao | 2017 | Chinese Journal of Population,Resources and Environment2017，15，1： | 10 |
| 3 | Angiogenesis in a 3D model containing adipose tissue stem cells and endothelial cells is mediated by canonical Wnt signaling显示文摘Adipose-derived stromal cells(ASCs) have gained great attention in regenerative medicine. Progress in our understanding of adult neovascularization further suggests the potential of ASCs in promoting vascular regeneration, although the specific cues that stimulate their angiogenic behavior remain controversial. In this study, we established a three-dimensional(3D) angiogenesis model by co-culturing ASCs and endothelial cells(ECs) in collagen gel and found that ASC-EC-instructed angiogenesis was regulated by the canonical Wnt pathway. Furthermore, the angiogenesis that occurred in implants collected after injections of our collagen gelbased 3D angiogenesis model into nude mice was confirmed to be functional and also regulated by the canonical Wnt pathway. Wnt regulation of angiogenesis involving changes in vessel length, vessel density,vessel sprout, and connection numbers occurred in our system. Wnt signaling was then shown to regulate ASCmediated paracrine signaling during angiogenesis through the nuclear translocation of β-catenin after its cytoplasmic accumulation in both ASCs and ECs. This translocation enhanced the expression of nuclear cofactor Lef-1 and cyclin D1 and activated the angiogenic transcription of vascular endothelial growth factor A(VEGFA), basic fibroblast growth factor(bF GF), and insulin-like growth factor 1(IGF-1). The angiogenesis process in the 3D collagen model appeared to follow canonical Wnt signaling, and this model can help us understand the importance of the canonical Wnt pathway in the use of ASCs in vascular regeneration. | Xiaoxiao Cai Jing Xie Yang Yao Xiangzhu Cun Shiyu Lin Taoran Tian Bofeng Zhu Yunfeng Lin | 2017 | Bone Research2017，5，4： | 6 |
| 4 | Decomposition Analysis of Sectoral Energy Use in Beijing (1981-2005) Using the LMDI Method显示文摘This paper aims to identify the main driving force for changes of total primary energy consumption in Beijing during the period of 1981-2005.Sectoral energy use was investigated when regional economic structure changed significantly.The changes of total primary energy consumption in Beijing are decomposed into production effects,structural effects and intensity effects using the additive version of the logarithmic mean Divisia index (LMDI) method.Aggregate decomposition analysis showed that the major contributor of total effect was made by the production effect fol- lowed by the intensity effect,and the structural effect was rela- tively insignificant.The total and production effects were all posi- tive.In contrast,the structural effect and intensity effect were all negative.Sectoral decomposition investigation indicated that the most effective way to slow down the growth rate of total primary energy consumption (TPEC) was to reduce the production of the energy-intensive industrial sectors and improving industrial en- ergy intensity.The results show that in this period,Beijing's economy has undergone a transformation from an industrial to a service economy.However,the structures of sectoral energy use have not been changed yet,and energy demand should be in- creasing until the energy-intensive industrial production to be reduced and energy intensity of the region reaches a peak.As sequence energy consumption data of sub-sectors are not available, only the fundamental three sectors are considered:agriculture, industry and service.However,further decomposition into secon- dary and tertiary sectors is definitely needed for detailed investi- gations. | Liu Chunlan Xie Gaodi Cai Bofeng | 2008 | Chinese Journal of Population,Resources and Environment2008，6，2： | 3 |
| 5 | Electro-optic lithium niobate metasurfaces显示文摘Many applications of metasurfaces require an ability to dynamically change their properties in the time domain. Electrical tuning techniques are of particular interest, since they pave a way to on-chip integration of metasurfaces with optoelectronic devices.In this work, we propose and experimentally demonstrate an electro-optic lithium niobate(EO-LN) metasurface that shows dynamic modulations to phase retardation of transmitted light. Quasi-bound states in the continuum(QBIC) are observed from this metasurface. By applying external electric voltages, the refractive index of lithium niobate(LN) is changed by Pockels EO nonlinearity, leading to efficient phase modulations to the transmitted light around the QBIC wavelength. The EO-LN metasurface developed in this study opens up new routes for potential applications in the field of displaying, pulse shaping, and spatial light modulating. | BoFeng Gao MengXin Ren Wei Wu Wei Cai JingJun Xu | 2021 | Science China(Physics,Mechanics & Astronomy)2021，64，4： | 3 |
| 6 | Specific patterns of XC02 observed by GOSAT during 2009-2016and assessed with model simulations over China显示文摘Spatiotemporal patterns of column-averaged dry air mole fraction of CO2(XCO2)have not been well characterized on a regional scale due to limitations in data availability and precision.This paper addresses these issues by examining such patterns in China using the long-term mapping XCO2 dataset(2009-2016)derived from the Greenhouse gases Observing SATellite(GOSAT).XCO2 simulations are also constructed using the high-resolution nested-grid GEOS-Chem model.The following results are found:Firstly,the correlation coefficient between the anthropogenic emissions and XCO2 spatial distribution is nearly zero in summer but up to 0.32 in autumn.Secondly,on average,XCO2 increases by 2.08 ppm every year from2010 to 2015,with a sharp increase of 2.6 ppm in 2013.Lastly,in the analysis of three typical regions,the GOSAT XCO2 time series is inbetter agreement with the GEOS-Chem simulation of XCO2 in the Taklimakan Desert region(the least difference with bias 0.65±0.78 ppm),compared with the northern urban agglomerationregion(-1.3±1.2 ppm)and the northeastern forest region(-1.4±1.4 ppm).The results are likely attributable to uncertainty in both the satellite-retrieved XCO2 data and the model simulation data. | Nian BIE Liping LEI Zhonghua HE Zhaocheng ZENG Liangyun LIU Bing ZHANG Bofeng CAI | 2020 | Science China Earth Sciences2020，63，3： | 2 |
| 7 | Spatial-temporal changes of Tianjin urban spatial morphology from 1978 to 2004显示文摘 | Cai Bofeng Zhang Zengxiang Liu Bin | 2008 | Journal of Geographical Sciences2008，26，2： | 1 |
| 8 | Synergetic roadmap of carbon neutrality and clean air for China显示文摘It is well recognized that carbon dioxide and air pollutants share similar emission sources so that synergetic policies on climate change mitigation and air pollution control can lead to remarkable co-benefits on greenhouse gas reduction,air quality improvement,and improved health.In the context of carbon peak,carbon neutrality,and clean air policies,this perspective tracks and analyzes the process of the synergetic governance of air pollution and climate change in China by developing and monitoring 18 indicators.The 18 indicators cover the following five aspects:air pollution and associated weather-climate conditions,progress in structural transition,sources,inks,and mitigation pathway of atmospheric composition,health impacts and benefits of coordinated control,and synergetic governance system and practices.By tracking the progress in each indicator,this perspective presents the major accomplishment of coordinated control,identifies the emerging challenges toward the synergetic governance,and provides policy recommendations for designing a synergetic roadmap of Carbon Neutrality and Clean Air for China. | Qiang Zhang Zhicong Yin Xi Lu Jicheng Gong Yu Lei Bofeng Cai Cilan Cai Qimin Chai Huopo Chen Hancheng Dai Zhanfeng Dong Guannan Geng Dabo Guan Jianlin Hu Cunrui Huang Jianing Kang Tiantian Li Wei Li Yongsheng Lin Jun Liu Xin Liu Zhu Liu Jinghui Ma Guofeng Shen Dan Tong Xuhui Wang Xuying Wang Zhili Wang Yang Xie Honglei Xu Tao Xue Bing Zhang Da Zhang Shaohui Zhang Shaojun Zhang Xian Zhang Bo Zheng Yixuan Zheng Tong Zhu Jinnan Wang Kebin He | 2023 | Environmental Science and Ecotechnology2023，，4： | 0 |
| 9 | A new model for China’s CO_(2) emission pathway using the top-down and bottom-up approaches显示文摘Detailed research on China's CO_(2) emission pathway of the 2030 peak and 2060 carbon neutrality goals is fundamental to promote China's climate change action.Previous studies on emission pathways have been based on long-term emission data or model analyses.However,few studies have achieved synergy and pathway optimization at both the micro and macro levels or focused on China's 2060 carbon neutrality goal,making it difficult to support the systematic management of national and regional emission pathways.In this study,we developed an integrated CO_(2) emission pathway model,the Chinese Academy of Environmental Planning Carbon Pathways 1.2 model,under China's climate change goals.Our pathway coupled the top-down and bottom-up approaches and conducted optimization analysis under social fairness and optimal cost conditions.The results provide a clear CO_(2) emission pathway and offer insights for implementing fine management of CO_(2) emissions at the national,regional,sectoral,and spatial gridded levels. | Bofeng Cai Li Zhang Chuyu Xia Lu Yang Hui Liu Lingling Jiang Libin Cao Yu Lei Gang Yan Jinnan Wang | 2021 | Chinese Journal of Population,Resources and Environment2021，19，4： | 0 |
| 10 | Striving for Carbon Dioxide Peaking and Carbon Neutrality显示文摘At the Central Economic Work Conference held from December 8 to 10,2021,Presidet Xi Jinping emphasized the need to get to grips with bringing carbon emissions to a peak before 2030 and achieving carbon neutrality before 2060(dual carbon goals,hereafter).This carefully formulated strategy of the Central Committee of the Communist Party of China(CPC)represents a solemn commitment to the international community and is a requirement for China's high-quality development. | Wang Jinnan Cai Bofeng | 2022 | Qiu Shi2022，14，3： | 0 |
| 11 | Study on carbon emission in prefecture-level cities of china显示文摘 | Feng Ying Cai Bofeng | 2012 | High Technology Letters2012，18，1： | 0 |
| 12 | A Deeper Understanding of the CO_(2)Emission Pathway Under China’s Carbon Emission Peak and Carbon Neutrality Goals显示文摘Achieving carbon neutrality is crucial in dealing with climate change and containing the increase in global temperature at below 1.5℃compared with preindustrial levels.During the general debate at the 75th session of the United Nations General Assembly in September 2020,President Xi Jinping announced that China would adopt more vigorous policies and measures against climate change. | Bofeng Cai Li Zhang Yu Lei Jinnan Wang | 2023 | Engineering2023，，11： | 0 |
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