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Energy rebound effect in China's manufacturing sector:Fresh evidence fromfirm-level data

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Frontiers of Engineering Management 2022年第3期9卷 439-451页

作者： zicheng zhou Luojia WANG Kerui DU Shuai SHAO School of Public Affairs Zhejiang UniversityHangzhou 310058China School of Management China Institute for Studies in Energy PolicyXiamen UniversityXiamen 361005China School of Business East China University of Science and TechnologyShanghai 200237China

The rebound effect refers to the phenomenon that individuals tend to consume more energy in the face of energy efficiency improvement,which reduces the expected energy-saving *** empirical studies on the rebound effect of regions and sectors do not provide microscopic *** fill this gap,we use China's firmlevel data to estimate the rebound effect in China's manufacturing subsectors,providing a detailed picture of China's rebound effect across different sectors and different regions in *** show that a partial rebound effect robustly appears in all industries,and the disparity between sectors is quite broad,ranging from 43.2%to 96.8%.As for the dynamic rebound effect of subsectors,most subsectors present an upward trend,whereas few subsectors show a clear downward *** a whole,the declined trend of the rebound effect is driven by the descent of minority sectors with high energy consumption and high energy-saving *** addition,we find that the disparity of the rebound effect across sectors is more significant than that across regions.

关键词： energy rebound effect energy efficiency manufacturing sector firm-level data China

Effects of rumen microorganisms on the decomposition of recycled straw residue

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2023年第4期24卷 336-344页

作者： Kailun SONG zicheng zhou Jinhai LENG Songwen FANG Chunhuo zhou Guorong NI Lichun KANG Xin YIN College of Land Resources and Environment Jiangxi Agricultural UniversityNanchang 330045China Key Innovation Center of Agricultural Waste Resource Utilization and Non-point Source Pollution Prevention and Control of Jiangxi Province Nanchang 330045China College of Engineering Jiangxi Agricultural UniversityNanchang 330045China

Recently,returning straw to the fields has been proved as a direct and effective method to tackle soil nutrient loss and agricultural ***,the slow decomposition of straw may harm the growth of the next *** study aimed to determine the effects of rumen microorganisms(RMs)on straw decomposition,bacterial microbial community structure,soil properties,and soil enzyme *** results showed that RMs significantly enhanced the degradation rate of straw in the soil,reaching 39.52%,which was 41.37%higher than that of the control on the 30th day after straw *** 30 d,straw degradation showed a significant slower trend in both the control and the experimental *** to the soil physicochemical parameters,the application of rumen fluid expedited soil matter transformation and nutrient buildup,and increased the urease,sucrase,and cellulase activity by 10%‒20%.The qualitative analysis of straw showed that the hydroxyl functional group structure of cellulose in straw was greatly damaged after the application of rumen *** analysis of soil microbial community structure revealed that the addition of rumen fluid led to the proliferation of Actinobacteria with strong cellulose degradation ability,which was the main reason for the accelerated straw *** study highlights that returning rice straw to the fields with rumen fluid inoculation can be used as an effective measure to enhance the biological value of recycled rice straw,proposing a viable solution to the problem of sluggish straw decomposition.

关键词： Rumen microorganisms(RMs) Straw return Microbial inoculant Decomposed straw Soil microorganisms

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变频离心式压缩机冷水机组

制冷 2010年第1期29卷 51-56页

作者：周子成

高效和节能技术是空调用冷水机组的主要发展方向。本文论述了近年来变频技术在离心式压缩机冷水机组中的应用,包括大型变频离心式压缩机冷水机组和磁悬浮变频离心式压缩机冷水机组。这两种技术是当今世界上离心式压缩机冷水机组领域里... 详细信息

高效和节能技术是空调用冷水机组的主要发展方向。本文论述了近年来变频技术在离心式压缩机冷水机组中的应用,包括大型变频离心式压缩机冷水机组和磁悬浮变频离心式压缩机冷水机组。这两种技术是当今世界上离心式压缩机冷水机组领域里最先进的技术。

关键词：冷水机组离心式压缩机变频

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水作为制冷剂的透平冷水机组研究现状(一)

制冷 2012年第1期31卷 29-36页

作者：周子成不详

水是一种古老的制冷剂,至今仍使用在溴化锂吸收式制冷机中和蒸气喷射式制冷机中,但被认为不适合在蒸气压缩式制冷机中使用。自从科学家们发现CFCs和HCFCs制冷剂对大气臭氧层的破坏作用和产生全球气候变暖效应以后,这些CFCs和HCFCs制冷... 详细信息

水是一种古老的制冷剂,至今仍使用在溴化锂吸收式制冷机中和蒸气喷射式制冷机中,但被认为不适合在蒸气压缩式制冷机中使用。自从科学家们发现CFCs和HCFCs制冷剂对大气臭氧层的破坏作用和产生全球气候变暖效应以后,这些CFCs和HCFCs制冷剂在大型透平冷水机组中将被淘汰使用。在寻求新的替代制冷剂时,水重新引起了人们的关注。本文综述使用水作为制冷剂在大型透平冷水机组中应用的研究和开发现状,包括制冷循环的COP分析,透平压缩机的结构和设计,以及三孔口冷凝波转子系统。

关键词：水作为制冷剂透平冷水机组研究现状