探讨了东北某输油站场的碳排放核算方法,并结合碳夹点分析法提出了能源结构的调整方案,着重研究了可再生能源对高碳排放能源的替代,从而减少碳排放。碳排放核算结果表明,输油站场温室气体的年排放量约为605705.87 t CO_(2)e,其中电力消...探讨了东北某输油站场的碳排放核算方法,并结合碳夹点分析法提出了能源结构的调整方案,着重研究了可再生能源对高碳排放能源的替代,从而减少碳排放。碳排放核算结果表明,输油站场温室气体的年排放量约为605705.87 t CO_(2)e,其中电力消耗产生的温室气体排放量在高碳排放能源中占比最高,超过94%。碳夹点分析结果表明:在高碳排放能源减排10%的限制下,采用最小可再生能源量方案时,能源结构为电力80.10%、热力4.01%、天然气3.95%、煤2.40%、可再生能源9.54%,可再生能源量为14716.36 tce;采用最大可再生能源量方案时,能源结构为电力85.66%、可再生能源14.35%,可再生能源量为22131.76 tce;在此基础上做进一步分析,可得到各部门的能源分配方案。展开更多
Connecting one armchair carbon nanotube（CNT） to several zigzag graphene nanoribbons（ZGNRs） we find that the topologically-protected edge states of ZGNRs and the massless Dirac particle inherited from CNT still hol...Connecting one armchair carbon nanotube（CNT） to several zigzag graphene nanoribbons（ZGNRs） we find that the topologically-protected edge states of ZGNRs and the massless Dirac particle inherited from CNT still hold from the analysis of the band structure and the edge state. Furthermore, the lowest conductance step at the valley bottom increases proportionally with increasing the number of ZGNR wings. A novel conductance step of a peak occurs in the valley, which is two steps higher than the lowest step at the valley bottom. In addition, with increasing the number of ZGNR wings the width of the novel conductance step becomes narrow.展开更多
Aggregate degradation(AD) is one of the major reasons accounting for failure of aggregate materials, and the mechanical degradation of aggregate materials can be determined by different test methods. This process basi...Aggregate degradation(AD) is one of the major reasons accounting for failure of aggregate materials, and the mechanical degradation of aggregate materials can be determined by different test methods. This process basically requires many aggregate samples and special instruments, and thus is time-consuming.The main purpose of this research is to evaluate the possibility of estimating the AD characteristics using rock strength tests and to investigate the relationships between AD properties and rock strength tests.For understanding the relationships, two common rock strength tests are employed, i.e. unconfined compressive strength(UCS) and point load index(PLI) tests. In the tests, the AD properties of 40 kinds of carbonate aggregates sampled from Iran were studied. The AD properties were determined by Los Angeles abrasion value(LAAV), aggregate impact value(AIV) and aggregate crushing value(ACV). Also,the samples are classified according to the strength and rock types, and the effect of this classification is investigated based on the relationship between rock strengths and AD properties. The results indicate that the PLI is better than UCS for evaluation of AD properties. Among rock strength tests, PLI has a closer relationship with AIV(R^2 = 0.832). Also, UCS has relative larger effects on the ACV(R^2 = 0.812) under the same loading condition. The weakest correlation occurs between LAAV and UCS(R^2 = 0.679). In view of the rational AD properties in the predictive procedure, it is possible to predict AD properties based on the strength tests and rock types. The results also show that the prediction of AD properties using rock strength test based on rock types yields better correlations than that using unclassified samples. The classification based on rock types can extrapolate the different relationships of AD prediction from rock strength tests. The results in this context could be used for preliminarily selecting proper rock aggregates with a limit of allowable AD tests for practical applications by PLI.展开更多
Purification capacity of a faucet mounted type water filter for home use was evaluated, particularly with regard to microbiological performance under different running conditions. Biofilms were formed inside the filte...Purification capacity of a faucet mounted type water filter for home use was evaluated, particularly with regard to microbiological performance under different running conditions. Biofilms were formed inside the filter, affecting the bacterial quality of the effluent water. Low flow rate, long stagnation period and high filter temperature were found favorable for bacterial growth inside. By commercial analytical profile index （API） kits, ten different bacterial species were identified in drinking water, four of which were probably contributed to the biofilm formation since they were also present in the biofilm. Fluorescence in situ hybridization （FISH） was used to confirm the API identification results, and direct viable count （DVC） method was employed to improve the sensitivity of FISH for the isolated Acinetobacter spp. and Pseudomonas putida as models. Relationship between the filter operating condition and the bacterial community alteration was partly revealed, which could provide the basic knowledge for the filter design and its practical use.展开更多
The purpose of this paper is to clarify the questions concerning stimulation of the innovation and the diffusion of energy saving or low-carbon.To do so,this paper explains using two cases of Japan-energy saving innov...The purpose of this paper is to clarify the questions concerning stimulation of the innovation and the diffusion of energy saving or low-carbon.To do so,this paper explains using two cases of Japan-energy saving innovation after the Oil Shock and the eco points system.For the case after the oil shock,we explain the energy saving trend after the Oil Shock and the factors statistically.Then we put forward the business model for the low-carbon economy.Furthermore,we analyze the case of the eco points system from 2009-2011 in Japan and explain the significance of the business model for diffusion of the low-carbon products.展开更多
文摘探讨了东北某输油站场的碳排放核算方法,并结合碳夹点分析法提出了能源结构的调整方案,着重研究了可再生能源对高碳排放能源的替代,从而减少碳排放。碳排放核算结果表明,输油站场温室气体的年排放量约为605705.87 t CO_(2)e,其中电力消耗产生的温室气体排放量在高碳排放能源中占比最高,超过94%。碳夹点分析结果表明:在高碳排放能源减排10%的限制下,采用最小可再生能源量方案时,能源结构为电力80.10%、热力4.01%、天然气3.95%、煤2.40%、可再生能源9.54%,可再生能源量为14716.36 tce;采用最大可再生能源量方案时,能源结构为电力85.66%、可再生能源14.35%,可再生能源量为22131.76 tce;在此基础上做进一步分析,可得到各部门的能源分配方案。
基金Project supported by the National Natural Science Foundation of China(Grant No.10947004)the Government Scholarship for Overseas Studies of Jiangsu Province,China
文摘Connecting one armchair carbon nanotube（CNT） to several zigzag graphene nanoribbons（ZGNRs） we find that the topologically-protected edge states of ZGNRs and the massless Dirac particle inherited from CNT still hold from the analysis of the band structure and the edge state. Furthermore, the lowest conductance step at the valley bottom increases proportionally with increasing the number of ZGNR wings. A novel conductance step of a peak occurs in the valley, which is two steps higher than the lowest step at the valley bottom. In addition, with increasing the number of ZGNR wings the width of the novel conductance step becomes narrow.
文摘Aggregate degradation(AD) is one of the major reasons accounting for failure of aggregate materials, and the mechanical degradation of aggregate materials can be determined by different test methods. This process basically requires many aggregate samples and special instruments, and thus is time-consuming.The main purpose of this research is to evaluate the possibility of estimating the AD characteristics using rock strength tests and to investigate the relationships between AD properties and rock strength tests.For understanding the relationships, two common rock strength tests are employed, i.e. unconfined compressive strength(UCS) and point load index(PLI) tests. In the tests, the AD properties of 40 kinds of carbonate aggregates sampled from Iran were studied. The AD properties were determined by Los Angeles abrasion value(LAAV), aggregate impact value(AIV) and aggregate crushing value(ACV). Also,the samples are classified according to the strength and rock types, and the effect of this classification is investigated based on the relationship between rock strengths and AD properties. The results indicate that the PLI is better than UCS for evaluation of AD properties. Among rock strength tests, PLI has a closer relationship with AIV(R^2 = 0.832). Also, UCS has relative larger effects on the ACV(R^2 = 0.812) under the same loading condition. The weakest correlation occurs between LAAV and UCS(R^2 = 0.679). In view of the rational AD properties in the predictive procedure, it is possible to predict AD properties based on the strength tests and rock types. The results also show that the prediction of AD properties using rock strength test based on rock types yields better correlations than that using unclassified samples. The classification based on rock types can extrapolate the different relationships of AD prediction from rock strength tests. The results in this context could be used for preliminarily selecting proper rock aggregates with a limit of allowable AD tests for practical applications by PLI.
基金supported by the Proctor and Gamble Company and in part by Boshidian Fund of Ministry of Education of China(No.200800030046)
文摘Purification capacity of a faucet mounted type water filter for home use was evaluated, particularly with regard to microbiological performance under different running conditions. Biofilms were formed inside the filter, affecting the bacterial quality of the effluent water. Low flow rate, long stagnation period and high filter temperature were found favorable for bacterial growth inside. By commercial analytical profile index （API） kits, ten different bacterial species were identified in drinking water, four of which were probably contributed to the biofilm formation since they were also present in the biofilm. Fluorescence in situ hybridization （FISH） was used to confirm the API identification results, and direct viable count （DVC） method was employed to improve the sensitivity of FISH for the isolated Acinetobacter spp. and Pseudomonas putida as models. Relationship between the filter operating condition and the bacterial community alteration was partly revealed, which could provide the basic knowledge for the filter design and its practical use.
基金supported by Grant-in-Aid for Asian CORE Program"Manufacturing and Environmental Management in East Asia"of Japan Society for the Promotion of Science(JSPS)
文摘The purpose of this paper is to clarify the questions concerning stimulation of the innovation and the diffusion of energy saving or low-carbon.To do so,this paper explains using two cases of Japan-energy saving innovation after the Oil Shock and the eco points system.For the case after the oil shock,we explain the energy saving trend after the Oil Shock and the factors statistically.Then we put forward the business model for the low-carbon economy.Furthermore,we analyze the case of the eco points system from 2009-2011 in Japan and explain the significance of the business model for diffusion of the low-carbon products.
