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基于长三角地区1995—2018年数据,从总体水平、产业层次、区域层次等角度分析,探究能源消费、CO2排放量对区域经济增长的影响。研究结果表明:CO2排放量与经济增长、能源消费与经济增长之间均存在着长期互为正向影响的关系,且具有积极性的影响,经济增长与CO2排放量以及经济增长与能源消费二者之间存在单方向的线性关系,经济增长能够促进能源消费量以及CO2排放量的增加。 相似文献
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中庸主义、个人主义对中国现代知识分子人格的影响--以周作人及与鲁迅的比较为例 总被引:1,自引:0,他引:1
赵恒瑾 《杭州师范学院学报(社会科学版)》2002,2(4):96-100
周作人在<谈龙集·上海气>中说"我终于是一个中庸主义的人."看来周作人对自己的了解是很深的.对于周作人的复杂人格,任何一种简单化的说明都是有害的,因此,以矛盾分析的办法以及与鲁迅进行人格对比的方法,论证鲁迅的人格是殉道的、苦行主义的,而周作人的人格则是中庸的、现世主义的,对于探讨周作人的人格的形成、发展以及内在矛盾,并以此关照中国现代社会条件之下知识分子的精神处境以及人格分裂问题,也许不无意义. 相似文献
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采用对偶性技巧、Hoelder不等式、线性抛物型方程正则性理论等一系列非线性分析的方法,研究一类带有交错扩散影响的非线性生物种群迁移与竞争控制系统模型,在R^n(2≤n≤4)的任何有界光滑区域并带有一般边界条件的情况下,得到系统解的整体存在性。 相似文献
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多肽标记的量子点已经被广泛应用于肿瘤细胞成像, 特别是靶向多肽标记的量子点能够特异性地标记细胞从而识别肿瘤. 然而到目前为止, 还没有靶向多肽标记的量子点用于结肠癌肿瘤组织成像. 本文合成了一种双功能的TCP-1-H6多肽, 这种多肽既有TCP-1的靶向性, 又含有一个组氨酸标签(His-tag). 多肽与量子点可以通过His-tag偶联并通过毛细管电泳表征. TCP-1可以特异性地识别结肠癌细胞的受体. 实验结果表明, 靶向多肽标记的量子点能特异性地识别结肠癌细胞及肿瘤组织. 这一工作对肿瘤细胞的识别诊断研究具有重要的参考价值. 相似文献
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We investigate the feasibility of dual-energy method for image contrast enhancement in small animal studies using a low kV X-ray radiographic system.A robust method for X-ray spectrum estimation from transmission measurements,based on expectation-maximization(EM) method,is applied to an X-ray specimen radiographic system for dual energy imaging of a mouse.From transmission measurements of two known attenuators at two different X-ray tube voltages,the X-ray energy spectra are reconstructed using the EM-based... 相似文献
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The relationship between phase transformation and electric re sistivity of Ti-42.6Ni-7Cu SMA was investigated. In the isothermal tensile tests, stress—strain curve shows large hysteresis and nonlinearity, whereas the resistivity—strain curve can be fitted by linearity. The resistivity of SMAs can be determined from the volume fractions of the martensitic and austenitic phas es. This characteristics leads to that the resistance of the SMAs is used as a parameter of strain of SMAs. A SMA actuator using resistance feedback control system was proposed, which can control and retain positioning at any positions without using sensor devices, and the deviation of position of this system was less than 3 μm. 相似文献
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Fine metal particles with uniform shape,narrow size distribution and high purity are increasingly needed for specific uses in high tech industrial application.We report the direct chemical synthesis of FeCo alloy particles using the mixture of FeCl2·4H2O,Co(Ac) 2·4H2O(Ac:acetate) and NaOH in ethylene glycol,and then obtained FeCo alloy particles better dispersed by adding the polyvinylpyrrolidone(PVP) and also the size could be controlled by adding copper.The prepared nano-particles were characterized using FESEM,XRD and VSM.The mean diameter of these particles was varied in the range of submicrometer to nanometer with metal-ion concentration.FeCo particles showed the typical soft magnetic properties. 相似文献
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Four oil absorbents based on styrene butadiene (SBR), i.e., pure SBR (PS), 4. tert-butylstyrene-SBR (PBS), EPDM-SBR network (PES) and 4.tert-butylstyrene-EPDMSBR (PBES), were produced from crosslinking polymerization of uncured styrene butadiene rubber (SBR), 4-tert-butylstyrene (tBS) and ethylene-propylenc-diene terpolymer (EPDM). The reaction took place in toluene using benzoyl peroxide (BPO) as an initiator. Uncured SBR was used as both a pre-polymer and a crosslink agent in this work, and the crosslinked polymer was identified by IR spectroscopy. The oil absorbency of the crosslinked polymer was evaluated with the method ASTM (F726-81). The order of maximum oil absorbency was PBES>PBS>PES>PS. The maximum values of oil absorbency of PBES and PBS were 74.0g/g and 69.5g/g, respectively. Gel fractions and swelling kinetic constants, however, had the opposite sequences. The swelling kinetic constant of PS evaluated by an experimental equation was 49. 97×10~(-2)h~(-1). 相似文献