工程变更指令(Engineering Change Order,ECO)在芯片设计当中是一种非常有效地解决芯片功能或时序问题的方法。本文以自研的条形码识别芯片为例,提出一种结合逻辑验证的从寄存器传输级(Register Transfer Level,RTL)电路到GDSII版图的...工程变更指令(Engineering Change Order,ECO)在芯片设计当中是一种非常有效地解决芯片功能或时序问题的方法。本文以自研的条形码识别芯片为例,提出一种结合逻辑验证的从寄存器传输级(Register Transfer Level,RTL)电路到GDSII版图的自动化ECO流程。介绍了基于综合工具、逻辑验证工具,布局布线工具的自动化ECO流程应用。同时围绕Conformal工具进行逻辑等效验证及ECO补丁生成,能够更直观地了解设计的变更点。且所有操作均可由自动化脚本完成,相较于传统的ECO流程,自动化程度更高,通过调用的综合工具使电路能更好地满足时序约束,大大降低了时间和人力成本,加快了芯片生产周期。展开更多
As Climate Change Haven Communities are constructed across the Northern Hemisphere, it will be necessary to attract two types of migrants to populate them. The first group consists of professionals and companies in ec...As Climate Change Haven Communities are constructed across the Northern Hemisphere, it will be necessary to attract two types of migrants to populate them. The first group consists of professionals and companies in eco-sustainable businesses, such as law firms, insurance companies, investment firms, banking, technological innovation, mass media, medical research and pharmaceutical research. The second group will consist of persons engaged in organic/eco-sustainable agriculture whose crops and animal husbandry practices can be transferred successfully to Climate Change Haven regions. The present research focuses on the social and economic variables that must be taken into account to insure that each new Climate Change Haven Community becomes successfully integrated with the local population and forms a cohesive, harmonious social structure. Examples are given from the United States, France, Spain, Portugal and Italy.展开更多
We evaluated some eco-epidemiological characteristics of the sand fly fauna in an ecotourism area in the Atlantic Forest located in Rio de Janeiro, southeastern Brazil. During a period of one year, sandflies were coll...We evaluated some eco-epidemiological characteristics of the sand fly fauna in an ecotourism area in the Atlantic Forest located in Rio de Janeiro, southeastern Brazil. During a period of one year, sandflies were collected in three different locations, where the sampled residences were located, respectively, one inside the forest, the other two, respectively at the edge of the forest and the other in a more urbanized area. These three types of ecotopes were evaluated: home, peridomicile and kennel. Four hundred and fifty-six sandflies were collected and six species belonging to five genera were identified: Migonemyia migonei, Lutzomyia longipalpis, Nyssomyia intermedia, Evandromyia sallesi, Evandromyia edwardsi and Brumptomyia wedge. The two most abundant species collected were M. migonei and L. longipalpis, contributing 70% and 18% respectively, totaling 88% of the individuals collected. The results suggested that modifications of the natural environment due to anthropic action probably resulted in changes in the composition of the sand fly population. At point (3), where spraying occurred irregularly, even representing a degraded environment, only one species was captured, M. migonei. Differently at points (1) and (2), areas located respectively in the interior and on the edge of the Atlantic Forest, a greater number of sand fly species was observed. However, after a few years, anthropic actions ceased, followed by the implementation of reforestation projects and currently the landscape is very different, showing considerable forest recovery. For this reason, ecotourism activities are increasing in the area, creating potentially dangerous conditions caused by the exposure of greater numbers of people and dogs to insect vectors. Therefore, the implementation of environmental education projects is essential. However, we suggest that the use of warning signs to be placed at the entrances to the main traffic routes, alerting tourists to the risk of infection and indicating protective measures, would be very useful.展开更多
The Oak Ridge National Laboratory (ORNL) is the largest and most diverse energy, research, and development institution within the Department of Energy (DOE) system in the United States. As such, the site endures const...The Oak Ridge National Laboratory (ORNL) is the largest and most diverse energy, research, and development institution within the Department of Energy (DOE) system in the United States. As such, the site endures constant land development that creates rigorous growing conditions for urban vegetation. Natural resource managers at ORNL recognize that trees are an integral component of the landscape and are interested in characterizing the urban forest and their associated ecosystem services benefits. We evaluated the urban forest structure, quantified ecosystem services and benefits, and estimated economic value of resources using i-Tree Eco at ORNL. While this assessment captured over 1100 landscape trees, the ORNL Natural Resources Management for landscape vegetation can be expanded to include unmanaged landscapes, e.g. riparian areas, greenspace, and other vegetative attributes to increase ecosystem services benefits. Assigning a monetary value to urban forest benefits help to inform decisions about urban forest management, ideally on cost-benefit analysis.展开更多
Ordinary Portland Cement (OPC) is by mass the largest manufactured product on Earth, responsible for approximately 6% - 8% of global anthropogenic carbon dioxide emissions (CO<sub>2</sub>) and 35% of indus...Ordinary Portland Cement (OPC) is by mass the largest manufactured product on Earth, responsible for approximately 6% - 8% of global anthropogenic carbon dioxide emissions (CO<sub>2</sub>) and 35% of industrial CO<sub>2</sub> emissions. On average 0.8 to 0.9 ton of CO<sub>2</sub> is emitted to produce one ton of OPC. In this paper, partial substitution of clinker (30% - 35%) by the calcined clay-limestone mixture was investigated in order to produce an eco-cement (LC3). Analyzes by XRF, XRD and ATG/ATD have characterized different components, determined the calcination temperature and selected the right clay which can act as effective Supplementary Cementitious Material (SCM). Mechanical tests on mortar carried out over a period of 90 days. The WBCSD/WRI “Greenhouse Gas Protocol” methodology then allowed the calculation of CO<sub>2</sub> emissions into the atmosphere. Three types of clay are available in the Songololo Region. The kaolinite is the principal clay mineral and its content varies from 27% to 34%. The sum of kaolinite and amorphous phase which enable clay to react with cementitious material ranges from 57% to 60%. The SiO<sub>2</sub> content ranges from 33% to 76%, the Alumina content from 12% to 20% so that the ratio Al<sub>2</sub>O<sub>3</sub>/SiO<sub>2</sub> is on the higher side (0.17 - 0.53). The calcination window is between 750°C and 850°C and the best clay which can act as SCM identified. The clinker’s substitution reduced CO<sub>2</sub> emissions from 0.824 ton of CO<sub>2</sub> for one ton of OPC to 0.640 ton of CO<sub>2</sub> for one ton of LC3, means 22% less emissions. The compressive strengths developed by LC3 vary from 8.91 to 57.6 MPa (Day 1 to Day 90), exceed those of references 32.5 cement and are close to 42.5 cement. In view of the results, LC3 cement can be considered for industrial trials.展开更多
Eco-city development is a healthy process towards sustainable development, within the carrying capacity of local ecosystem through changing production mode, consumption behavior and decision instrument based on ecolog...Eco-city development is a healthy process towards sustainable development, within the carrying capacity of local ecosystem through changing production mode, consumption behavior and decision instrument based on ecological economics and system engineering. The key to its planning is an ecological integration to make trade-off between economic wealth and environmental health, between material and spiritual civilization, between natural and human eco-cybernetics. Integration, demonstration, citizens’ participation and scientists’ and technician’s catalyzing are the key instruments for the implementation of the ecocity plan. "Clean production" and "ecological industry" are key elements in comprehensive development towards an eco-city. Beyond the technical and management questions, how to interlink production, consumption and reduction at the local and regional level, the spatial and urban dimension should be considered in order to perform an integrative urban eco-space.展开更多
为了探究不同制酒车间空气微生物群落的功能多样性差异,采用Biolog-ECO微平板技术分析了不同空气样品的微生物群落碳代谢特征。结果表明,不同微生物样品平均颜色变化率(average well color development,AWCD)均在培养144h后达到稳定,并...为了探究不同制酒车间空气微生物群落的功能多样性差异,采用Biolog-ECO微平板技术分析了不同空气样品的微生物群落碳代谢特征。结果表明,不同微生物样品平均颜色变化率(average well color development,AWCD)均在培养144h后达到稳定,并且5个车间的AWCD值即对单一碳源的利用能力存在显著差异,老车间空气微生物的碳代谢能力和4类多样性指数均显著高于新车间。5个车间空气微生物对6类碳源的利用程度存在差异,对碳水化合物、氨基酸类、羧酸类、多聚物类和胺类碳源的利用率显著高于酚酸类。微生物代谢特征主成分分析结果表明,主成分1(PC1)贡献度为72.7%,主成分2(PC2)贡献度为14.2%,其中生产工艺相同的车间微生物群落差异较小,投产时间相同的车间微生物群落差异较小。分异代谢差异的主要碳源是与PC1有较高正相关性的α-D-乳糖、β-甲基-D-葡萄糖苷、葡萄糖-1-磷酸盐、肝糖等15种碳源,包括有9种碳水化合物、3种羧酸、2种多聚物和1种氨基酸。展开更多
文摘工程变更指令(Engineering Change Order,ECO)在芯片设计当中是一种非常有效地解决芯片功能或时序问题的方法。本文以自研的条形码识别芯片为例,提出一种结合逻辑验证的从寄存器传输级(Register Transfer Level,RTL)电路到GDSII版图的自动化ECO流程。介绍了基于综合工具、逻辑验证工具,布局布线工具的自动化ECO流程应用。同时围绕Conformal工具进行逻辑等效验证及ECO补丁生成,能够更直观地了解设计的变更点。且所有操作均可由自动化脚本完成,相较于传统的ECO流程,自动化程度更高,通过调用的综合工具使电路能更好地满足时序约束,大大降低了时间和人力成本,加快了芯片生产周期。
文摘As Climate Change Haven Communities are constructed across the Northern Hemisphere, it will be necessary to attract two types of migrants to populate them. The first group consists of professionals and companies in eco-sustainable businesses, such as law firms, insurance companies, investment firms, banking, technological innovation, mass media, medical research and pharmaceutical research. The second group will consist of persons engaged in organic/eco-sustainable agriculture whose crops and animal husbandry practices can be transferred successfully to Climate Change Haven regions. The present research focuses on the social and economic variables that must be taken into account to insure that each new Climate Change Haven Community becomes successfully integrated with the local population and forms a cohesive, harmonious social structure. Examples are given from the United States, France, Spain, Portugal and Italy.
文摘We evaluated some eco-epidemiological characteristics of the sand fly fauna in an ecotourism area in the Atlantic Forest located in Rio de Janeiro, southeastern Brazil. During a period of one year, sandflies were collected in three different locations, where the sampled residences were located, respectively, one inside the forest, the other two, respectively at the edge of the forest and the other in a more urbanized area. These three types of ecotopes were evaluated: home, peridomicile and kennel. Four hundred and fifty-six sandflies were collected and six species belonging to five genera were identified: Migonemyia migonei, Lutzomyia longipalpis, Nyssomyia intermedia, Evandromyia sallesi, Evandromyia edwardsi and Brumptomyia wedge. The two most abundant species collected were M. migonei and L. longipalpis, contributing 70% and 18% respectively, totaling 88% of the individuals collected. The results suggested that modifications of the natural environment due to anthropic action probably resulted in changes in the composition of the sand fly population. At point (3), where spraying occurred irregularly, even representing a degraded environment, only one species was captured, M. migonei. Differently at points (1) and (2), areas located respectively in the interior and on the edge of the Atlantic Forest, a greater number of sand fly species was observed. However, after a few years, anthropic actions ceased, followed by the implementation of reforestation projects and currently the landscape is very different, showing considerable forest recovery. For this reason, ecotourism activities are increasing in the area, creating potentially dangerous conditions caused by the exposure of greater numbers of people and dogs to insect vectors. Therefore, the implementation of environmental education projects is essential. However, we suggest that the use of warning signs to be placed at the entrances to the main traffic routes, alerting tourists to the risk of infection and indicating protective measures, would be very useful.
文摘The Oak Ridge National Laboratory (ORNL) is the largest and most diverse energy, research, and development institution within the Department of Energy (DOE) system in the United States. As such, the site endures constant land development that creates rigorous growing conditions for urban vegetation. Natural resource managers at ORNL recognize that trees are an integral component of the landscape and are interested in characterizing the urban forest and their associated ecosystem services benefits. We evaluated the urban forest structure, quantified ecosystem services and benefits, and estimated economic value of resources using i-Tree Eco at ORNL. While this assessment captured over 1100 landscape trees, the ORNL Natural Resources Management for landscape vegetation can be expanded to include unmanaged landscapes, e.g. riparian areas, greenspace, and other vegetative attributes to increase ecosystem services benefits. Assigning a monetary value to urban forest benefits help to inform decisions about urban forest management, ideally on cost-benefit analysis.
文摘Ordinary Portland Cement (OPC) is by mass the largest manufactured product on Earth, responsible for approximately 6% - 8% of global anthropogenic carbon dioxide emissions (CO<sub>2</sub>) and 35% of industrial CO<sub>2</sub> emissions. On average 0.8 to 0.9 ton of CO<sub>2</sub> is emitted to produce one ton of OPC. In this paper, partial substitution of clinker (30% - 35%) by the calcined clay-limestone mixture was investigated in order to produce an eco-cement (LC3). Analyzes by XRF, XRD and ATG/ATD have characterized different components, determined the calcination temperature and selected the right clay which can act as effective Supplementary Cementitious Material (SCM). Mechanical tests on mortar carried out over a period of 90 days. The WBCSD/WRI “Greenhouse Gas Protocol” methodology then allowed the calculation of CO<sub>2</sub> emissions into the atmosphere. Three types of clay are available in the Songololo Region. The kaolinite is the principal clay mineral and its content varies from 27% to 34%. The sum of kaolinite and amorphous phase which enable clay to react with cementitious material ranges from 57% to 60%. The SiO<sub>2</sub> content ranges from 33% to 76%, the Alumina content from 12% to 20% so that the ratio Al<sub>2</sub>O<sub>3</sub>/SiO<sub>2</sub> is on the higher side (0.17 - 0.53). The calcination window is between 750°C and 850°C and the best clay which can act as SCM identified. The clinker’s substitution reduced CO<sub>2</sub> emissions from 0.824 ton of CO<sub>2</sub> for one ton of OPC to 0.640 ton of CO<sub>2</sub> for one ton of LC3, means 22% less emissions. The compressive strengths developed by LC3 vary from 8.91 to 57.6 MPa (Day 1 to Day 90), exceed those of references 32.5 cement and are close to 42.5 cement. In view of the results, LC3 cement can be considered for industrial trials.
文摘Eco-city development is a healthy process towards sustainable development, within the carrying capacity of local ecosystem through changing production mode, consumption behavior and decision instrument based on ecological economics and system engineering. The key to its planning is an ecological integration to make trade-off between economic wealth and environmental health, between material and spiritual civilization, between natural and human eco-cybernetics. Integration, demonstration, citizens’ participation and scientists’ and technician’s catalyzing are the key instruments for the implementation of the ecocity plan. "Clean production" and "ecological industry" are key elements in comprehensive development towards an eco-city. Beyond the technical and management questions, how to interlink production, consumption and reduction at the local and regional level, the spatial and urban dimension should be considered in order to perform an integrative urban eco-space.
文摘为了探究不同制酒车间空气微生物群落的功能多样性差异,采用Biolog-ECO微平板技术分析了不同空气样品的微生物群落碳代谢特征。结果表明,不同微生物样品平均颜色变化率(average well color development,AWCD)均在培养144h后达到稳定,并且5个车间的AWCD值即对单一碳源的利用能力存在显著差异,老车间空气微生物的碳代谢能力和4类多样性指数均显著高于新车间。5个车间空气微生物对6类碳源的利用程度存在差异,对碳水化合物、氨基酸类、羧酸类、多聚物类和胺类碳源的利用率显著高于酚酸类。微生物代谢特征主成分分析结果表明,主成分1(PC1)贡献度为72.7%,主成分2(PC2)贡献度为14.2%,其中生产工艺相同的车间微生物群落差异较小,投产时间相同的车间微生物群落差异较小。分异代谢差异的主要碳源是与PC1有较高正相关性的α-D-乳糖、β-甲基-D-葡萄糖苷、葡萄糖-1-磷酸盐、肝糖等15种碳源,包括有9种碳水化合物、3种羧酸、2种多聚物和1种氨基酸。
