With the advancement of the transformation,the contradiction between the residents’demand for a better living environment and the convenience of living in the settlements comes to the fore.Effective identification,or...With the advancement of the transformation,the contradiction between the residents’demand for a better living environment and the convenience of living in the settlements comes to the fore.Effective identification,organic integration,timely adoption,and correct decision-making for the transformation of old neighborhoods are pressing issues in the transformation of old neighborhoods.Therefore,this paper takes the green building evaluation standards of various countries as the research basis and support for the construction of the transformation strategy of old neighborhoods.Through the collection and comparative analysis of the indicators of green building evaluation standards,the index system of transformation is formed,and it also provides a certain foundation for the subsequent related research.展开更多
We tested 288 pieces of the polished cabochon jadeite-jade with high quality green and smooth surfaces using the colorimeter Color i5 based on the CIE 1976 L＊a＊b＊ uniform color space. The color changes after altern...We tested 288 pieces of the polished cabochon jadeite-jade with high quality green and smooth surfaces using the colorimeter Color i5 based on the CIE 1976 L＊a＊b＊ uniform color space. The color changes after alternating three CIE standard light sources D65, A and CWF were compared, and the degree of metamerism was evaluated. The results show that the CIE standard light sources D65, A and CWF increase the chroma of green and turn bluish green into vivid green, which are similar or to nearly colorless and transparent glass-like samples with fine textures. When the three light sources were individually alternated, the lightness of the jadeite-jades showed little change, but the tone changed significantly. Metamerism occurred only in 3 pairs among the 16 samples that were selected by cluster analysis for quality, and the metamerism colors were highly consistent of L＊D65∈（43.47, 46.75）, C＊D65∈（65.20, 68.80） and ho＊D65∈（138.10, 140.23）. We can conclude that the jadeite-jade green gradually turns to blue when the color temperature of the light source increases. But when considering both the light sources and the samples, D65 is more suitable to be the light source of jadeite-jade green when compared with the light sources CWF and A. Compared with the CIE standard green and high chroma green, high-quality jadeite-jade green has a slight yellow tone, low lightness and high chroma. The special metamerism index decreased to 1 when the light source alternated among D65, A and CWF. Therefore, the color of jadeite-jade green might be slightly influenced by alternating of the light sources.展开更多
Distinct from the existing literature conforming to the Porter hypothesis which emphasizes the technological innovation mechanism,this paper examines the mechanism of technological transformation through which environ...Distinct from the existing literature conforming to the Porter hypothesis which emphasizes the technological innovation mechanism,this paper examines the mechanism of technological transformation through which environmental technical standards influence the manufacturing industry in reducing emissions and improving efficiency(i.e.green transition).Furthermore,drawing upon enterprise samples from the databases of Chinese Industrial Enterprises and Chinese Industrial Pollution Sources from Major Monitored Enterprises,it empirically validates the results of the theoretical analysis.Overall,our research reveals that environmental technical standards can propel manufacturing enterprises to reduce pollution and increase productivity by following an incremental path of technological transformation,thereby achieving a green transition.Moreover,environmental technical standards indirectly promote green technology innovation in the upstream equipment manufacturing enterprises.Heterogeneity analysis further shows that environmental technical standards have a stronger effect of green transition on those companies with higher pollution emission intensity,lower productivity,slower capital renewal and stronger financing capacity prior to implementing the environmental policies.展开更多
Assessment standard for green store building of national standard has been compiled. The index has been given by experts' subjective assignment based on experience. Analytic hierarchy process has been used,making ...Assessment standard for green store building of national standard has been compiled. The index has been given by experts' subjective assignment based on experience. Analytic hierarchy process has been used,making questionnaires of experts,using pairwise comparison and calculating the weight of each index. The weight of index in assessment would not only make quantitative evaluation on the whole situation of green store buildings,but also provide the foundation for compilation and revision.展开更多
根据GenBank发表的猪繁殖与呼吸综合征病毒（PRRSV）M基因核苷酸序列设计一对特异性引物,扩增位置在M基因的14744～14846位,片段长度为103bp。提取PRRS RNA,并反转录成cDNA,以此cDNA为模板建立了SYBR Green Ⅰ实时定量PCR检测PRRSV的方...根据GenBank发表的猪繁殖与呼吸综合征病毒（PRRSV）M基因核苷酸序列设计一对特异性引物,扩增位置在M基因的14744～14846位,片段长度为103bp。提取PRRS RNA,并反转录成cDNA,以此cDNA为模板建立了SYBR Green Ⅰ实时定量PCR检测PRRSV的方法。并用该方法检测送检的临床疑似病料,结果表明,本研究建立的PRRSV-SYBR Green I PCR特异性强,操作简单,耗时短,只需3h即可完成整个实验过程,可初步用于临床检测。展开更多
Based on the actual situation and the survey results in rural areas,with the domestic and foreign advanced green building standard as a reference,we initially determine the evaluation indicator system for rural green ...Based on the actual situation and the survey results in rural areas,with the domestic and foreign advanced green building standard as a reference,we initially determine the evaluation indicator system for rural green building. We use the AHP-Delphi method to calculate the weight,and get a multi-goal,multi-factor,and multi-level rural green building evaluation method suitable for the rural environment,social and economic situation,and apply this method to 10 villages in Shaanxi Province. After the evaluation and scoring,we give the following recommendations:( i) Strengthening the energy-saving design and improving the living comfort;( ii) Enhancing the application of appropriate technologies;( iii) Improving the level of development environment.展开更多
为了建立快速定量检测鸡Caspase-1基因的方法,本研究根据鸡Caspase-1基因序列设计特异性检测引物,PCR扩增Caspase-1基因片段,构建pMD-Caspase-1重组质粒。以该重组质粒为标准品进行荧光定量PCR扩增,建立标准曲线,并通过反应条件优化、...为了建立快速定量检测鸡Caspase-1基因的方法,本研究根据鸡Caspase-1基因序列设计特异性检测引物,PCR扩增Caspase-1基因片段,构建pMD-Caspase-1重组质粒。以该重组质粒为标准品进行荧光定量PCR扩增,建立标准曲线,并通过反应条件优化、特异性、敏感性及重复性等试验,建立了鸡Caspase-1基因SYBR Green I荧光定量PCR检测方法。结果显示,本研究建立的该荧光定量PCR方法在重组质粒标准品为1.0×10^(3)拷贝/μL~1.0×10^(8)拷贝/μL范围内具有良好的线性关系;该荧光定量PCR方法对Caspase-1基因的扩增具有较强的特异性;对重组质粒标准品的检测下限为1.0×10^(2)拷贝/μL,比常规PCR敏感100倍;批内和批间变异系数分别在0.51%~4.41%和0.37%~0.88%,重复性好。利用所建立的方法可以定量检测致病性禽腺病毒血清4型感染鸡不同组织中Caspase-1的转录水平。本研究方法的建立将为研究鸡Caspase-1在免疫反应和疫病发展过程中的作用提供技术支持。展开更多
面向碳中和目标,我国《绿色生态城区评价标准》具有优化升级的可能,但优化路径有待探索。通过梳理国外绿色生态城区评价标准发现,评价标准整合碳中和目标是趋势所向,能源指标是评价标准优化升级的重点。对此,选择美国LEED Cities and Co...面向碳中和目标,我国《绿色生态城区评价标准》具有优化升级的可能,但优化路径有待探索。通过梳理国外绿色生态城区评价标准发现,评价标准整合碳中和目标是趋势所向,能源指标是评价标准优化升级的重点。对此,选择美国LEED Cities and Communities和英国BREEAM Communities,开展碳中和目标下中美英绿色生态城区评价标准能源指标比较研究。研究表明:美英评价标准能源指标在整合碳中和目标上具有先进性,能源指标分布集中,重视可再生能源与碳排放的评价,且条文细则在“优化能源结构”“注重可再生能源开发”和“建筑与基础设施节能”上已有创新。基于比较结果,对碳中和目标下我国《绿色生态城区评价标准》及其能源指标的优化提出“编制理念及控制项需明确碳中和目标”“调整能源指标的分布情况和分值权重”“能源指标条文细则落位碳中和新技术”3点启示。展开更多
文摘With the advancement of the transformation,the contradiction between the residents’demand for a better living environment and the convenience of living in the settlements comes to the fore.Effective identification,organic integration,timely adoption,and correct decision-making for the transformation of old neighborhoods are pressing issues in the transformation of old neighborhoods.Therefore,this paper takes the green building evaluation standards of various countries as the research basis and support for the construction of the transformation strategy of old neighborhoods.Through the collection and comparative analysis of the indicators of green building evaluation standards,the index system of transformation is formed,and it also provides a certain foundation for the subsequent related research.
基金financial support by "the Fundamental Research Funds for the Central Universities"
文摘We tested 288 pieces of the polished cabochon jadeite-jade with high quality green and smooth surfaces using the colorimeter Color i5 based on the CIE 1976 L＊a＊b＊ uniform color space. The color changes after alternating three CIE standard light sources D65, A and CWF were compared, and the degree of metamerism was evaluated. The results show that the CIE standard light sources D65, A and CWF increase the chroma of green and turn bluish green into vivid green, which are similar or to nearly colorless and transparent glass-like samples with fine textures. When the three light sources were individually alternated, the lightness of the jadeite-jades showed little change, but the tone changed significantly. Metamerism occurred only in 3 pairs among the 16 samples that were selected by cluster analysis for quality, and the metamerism colors were highly consistent of L＊D65∈（43.47, 46.75）, C＊D65∈（65.20, 68.80） and ho＊D65∈（138.10, 140.23）. We can conclude that the jadeite-jade green gradually turns to blue when the color temperature of the light source increases. But when considering both the light sources and the samples, D65 is more suitable to be the light source of jadeite-jade green when compared with the light sources CWF and A. Compared with the CIE standard green and high chroma green, high-quality jadeite-jade green has a slight yellow tone, low lightness and high chroma. The special metamerism index decreased to 1 when the light source alternated among D65, A and CWF. Therefore, the color of jadeite-jade green might be slightly influenced by alternating of the light sources.
文摘Distinct from the existing literature conforming to the Porter hypothesis which emphasizes the technological innovation mechanism,this paper examines the mechanism of technological transformation through which environmental technical standards influence the manufacturing industry in reducing emissions and improving efficiency(i.e.green transition).Furthermore,drawing upon enterprise samples from the databases of Chinese Industrial Enterprises and Chinese Industrial Pollution Sources from Major Monitored Enterprises,it empirically validates the results of the theoretical analysis.Overall,our research reveals that environmental technical standards can propel manufacturing enterprises to reduce pollution and increase productivity by following an incremental path of technological transformation,thereby achieving a green transition.Moreover,environmental technical standards indirectly promote green technology innovation in the upstream equipment manufacturing enterprises.Heterogeneity analysis further shows that environmental technical standards have a stronger effect of green transition on those companies with higher pollution emission intensity,lower productivity,slower capital renewal and stronger financing capacity prior to implementing the environmental policies.
基金Sponsored by the National Project of Scientific and Technical Supporting Programs of Ministry of Science & Technology of China(Grant No.2012BAJ10B02)
文摘Assessment standard for green store building of national standard has been compiled. The index has been given by experts' subjective assignment based on experience. Analytic hierarchy process has been used,making questionnaires of experts,using pairwise comparison and calculating the weight of each index. The weight of index in assessment would not only make quantitative evaluation on the whole situation of green store buildings,but also provide the foundation for compilation and revision.
文摘根据GenBank发表的猪繁殖与呼吸综合征病毒（PRRSV）M基因核苷酸序列设计一对特异性引物,扩增位置在M基因的14744～14846位,片段长度为103bp。提取PRRS RNA,并反转录成cDNA,以此cDNA为模板建立了SYBR Green Ⅰ实时定量PCR检测PRRSV的方法。并用该方法检测送检的临床疑似病料,结果表明,本研究建立的PRRSV-SYBR Green I PCR特异性强,操作简单,耗时短,只需3h即可完成整个实验过程,可初步用于临床检测。
基金Supported by Project of Shaanxi Provincial Department of Education(11JK006113JZ029)+1 种基金Soft Science Project of Shaanxi Provincial Department of Science and Technology(2011KRM412006KR80)
文摘Based on the actual situation and the survey results in rural areas,with the domestic and foreign advanced green building standard as a reference,we initially determine the evaluation indicator system for rural green building. We use the AHP-Delphi method to calculate the weight,and get a multi-goal,multi-factor,and multi-level rural green building evaluation method suitable for the rural environment,social and economic situation,and apply this method to 10 villages in Shaanxi Province. After the evaluation and scoring,we give the following recommendations:( i) Strengthening the energy-saving design and improving the living comfort;( ii) Enhancing the application of appropriate technologies;( iii) Improving the level of development environment.
文摘为了建立快速定量检测鸡Caspase-1基因的方法,本研究根据鸡Caspase-1基因序列设计特异性检测引物,PCR扩增Caspase-1基因片段,构建pMD-Caspase-1重组质粒。以该重组质粒为标准品进行荧光定量PCR扩增,建立标准曲线,并通过反应条件优化、特异性、敏感性及重复性等试验,建立了鸡Caspase-1基因SYBR Green I荧光定量PCR检测方法。结果显示,本研究建立的该荧光定量PCR方法在重组质粒标准品为1.0×10^(3)拷贝/μL~1.0×10^(8)拷贝/μL范围内具有良好的线性关系;该荧光定量PCR方法对Caspase-1基因的扩增具有较强的特异性;对重组质粒标准品的检测下限为1.0×10^(2)拷贝/μL,比常规PCR敏感100倍;批内和批间变异系数分别在0.51%~4.41%和0.37%~0.88%,重复性好。利用所建立的方法可以定量检测致病性禽腺病毒血清4型感染鸡不同组织中Caspase-1的转录水平。本研究方法的建立将为研究鸡Caspase-1在免疫反应和疫病发展过程中的作用提供技术支持。
文摘面向碳中和目标,我国《绿色生态城区评价标准》具有优化升级的可能,但优化路径有待探索。通过梳理国外绿色生态城区评价标准发现,评价标准整合碳中和目标是趋势所向,能源指标是评价标准优化升级的重点。对此,选择美国LEED Cities and Communities和英国BREEAM Communities,开展碳中和目标下中美英绿色生态城区评价标准能源指标比较研究。研究表明:美英评价标准能源指标在整合碳中和目标上具有先进性,能源指标分布集中,重视可再生能源与碳排放的评价,且条文细则在“优化能源结构”“注重可再生能源开发”和“建筑与基础设施节能”上已有创新。基于比较结果,对碳中和目标下我国《绿色生态城区评价标准》及其能源指标的优化提出“编制理念及控制项需明确碳中和目标”“调整能源指标的分布情况和分值权重”“能源指标条文细则落位碳中和新技术”3点启示。
