Results 11 to 20 of about 6,512 (162)
全球能源互联网, 2021 碳排放权交易（碳交易）是推动二氧化碳减排的重要手段，基于空间特征的研究有利于全面、准确地理解碳排放权交易市场的减排效果。基于中国1999—2017年285个地级市的平衡面板数据，通过空间双重差分模型探究碳交易试点的减排效果及传导机制。研究发现：第一，碳交易不但能有效促进本地二氧化碳减排，而且对周边地区还存在一定溢出效应；第二，碳交易可以推动试点地区与周边地区经济增长，同时驱动二氧化碳减排；第三，碳交易在工业规模更大的地区有更好的二氧化减排效果及溢出效应；第四 ...
李若男, 杨力俊, 赵晓丽
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Journal of Natural Fibers, 2022 Hybrid composite materials containing natural fibers are replacing conventional materials for automobile, aerospace and sports goods structural applications.
M. Venkatasudhahar +2 more
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Zhejiang Daxue xuebao. Lixue ban, 2023 在双碳目标的驱动下，碳排放权愈发成为重要的地区发展权，在县域层面落实落位碳额分配是我国深入减碳的焦点，浙江省将在“十四五”时期进入局部率先达峰的二级减碳阶段。为分解落实我国自主减碳目标，采用熵权法构建以公平性、效率性、可持续性为原则的碳排放权分配模型，基于碳排放空间与减碳潜力测算方法，得到2017—2030年浙江省89个县（市、区）的碳排放权分配、碳排放空间分类和减碳潜力分级。结果表明，碳排放权分配在县域层级存在空间差异性，在省域层级存在空间平衡性；碳排放空间分类呈“南余北赤”模式；减碳潜力分级表现为 ...
周从越(ZHOU Congyue) +3 more
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基于清单编制法的中国碳市场免费碳配额分布平衡分析 [PDF]
全球能源互联网, 2022 生态环境部于2020年印发了发电行业免费碳配额设定与分配实施方案，为控排企业免费碳配额核算提供了标准。目前全国碳市场已启动运行，此前对中国免费碳配额分配的分析均引用了大量假设，且计算精度有限。为此，编制了全国火电厂级精细度的碳清单，自下而上地辨识全国火电厂级煤耗、产能参数，并根据发电行业免费碳配额标准，计算以2020年为基准的碳清单，以此研究目前碳市场规则下免费碳配额在火电行业中的分配平衡性，对于分析现阶段碳市场运行状况、评价碳市场对电力系统的经济影响具有参考价值。分析结果表明 ...
赵宏兴 +5 more
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Journal of Experimental Phonetics, 2021 Este artículo pretende ser una respuesta unificadora ante la falta de conexión entre los enfoques sincrónico y diacrónico basados en el alófono [ç] de /x/ en el español de Sudamérica. Se llevaron a cabo dos experimentos: un análisis acústico basado en habla de laboratorio, semidirigida y espontánea, y un experimento de percepción (tarea de ...
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福州市不同种植年限茉莉花园土壤碳、氮、磷及生态化学计量比特征
Shuitu Baochi Xuebao, 2022 为了阐明种植年限对茉莉花园土壤碳(C)、氮(N)、磷(P)及其生态化学计量特征的影响, 以福州市种植年限约为3(J-3), 10(J-10), 15(J-15), 30(J-30), >40(J-40)年的茉莉花园为研究对象, 对土壤C、N、P与生态化学计量比及其影响因子进行了测定与分析。结果表明: (1)与J-3相比, 随着种植年限的增加J-10、J-30、J-40土壤容重显著下降29%, 19%和18%(P < 0.05), J-10、J-15、J-30、J-40土壤黏粒含量分别显著降低26 ...
黑杰 +10 more
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Aeroacoustic differences between the Japanese fricatives [ɕ] and [ç] [PDF]
The Journal of the Acoustical Society of America, 2021 To elucidate the linguistic similarity between the alveolo-palatal sibilant [ɕ] and palatal non-sibilant [ç] in Japanese, the aeroacoustic differences between the two consonants were explored via experimentation with participants and analysis using simplified vocal tract models.
Tsukasa, Yoshinaga +2 more
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Study on Urate-Lowering Effects of Sugarcane Polyphenol in Hyperuricemic Rats(甘蔗多酚对高尿酸血症大鼠的降尿酸作用研究) [PDF]
Shipin kexue jishu xuebaoIncreasing dietary intake of bioactive substances with urate-lowering activity to prevent or alleviate hyperuricemia is a current research hotspot in the functional food field.
LI Kexin(李柯欣) +6 more
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Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract Drylands are mainly structured by both vascular plants and biological soil crusts (biocrusts), the latter often regarded as a self‐organizing component of these ecosystems.
Haoran Luo +13 more
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Comprehensive framework for assessing and optimizing existing research networks
Conservation Biology, EarlyView.Abstract Conservation, monitoring, and research networks, or collections of ecological research sites unified under a common mission of data collection or a research mission, are essential infrastructure for understanding large landscapes. However, most networks developed opportunistically over decades rather than through systematic design, creating ...
Alyson East +2 more
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