Composite materials exhibit advantages from the combination of multiple properties,which cannot be achieved by a monolithic material.At present,the use of composite materials in miniaturized scale is receiving much at...Composite materials exhibit advantages from the combination of multiple properties,which cannot be achieved by a monolithic material.At present,the use of composite materials in miniaturized scale is receiving much attention in the fields of medicine,electronics,aerospace,and microtooling.A common method for producing miniaturized composite parts is micromanufacturing.There has been,however,no comprehensive literature published that reviews,compares,and discusses the ongoing micromanufacturing methods for producing miniaturized composite components.This study identifies the major micromanufacturing methods used with composite materials,categorizes their subclasses,and highlights the latest developments,new trends,and effects of key factors on the productivity,quality,and cost of manufacturing composite materials.A comparative study is presented that shows the potential and versatility associated with producing composite materials along with possible future applications.This review will be helpful in promoting micromanufacturing technology for fabricating miniaturized products made of composite materials to meet the growing industrial demand.展开更多
In recent years the publication of new legislation in the renewables sector, namely the one related to microgeneration systems, has contributed to an increase in the installation of renewable energy systems in Portuga...In recent years the publication of new legislation in the renewables sector, namely the one related to microgeneration systems, has contributed to an increase in the installation of renewable energy systems in Portugal. Nevertheless, the investment in these systems is still high and the risk of considering sites with reduced resource constitutes a barrier to the development of this sub-sector. In the sequence of the previous work developed in the wind energy planning area, a methodology to identify the sustainable wind and solar potential in urban areas was developed, in order to reduce the pre-installation costs related to a less suitable site selection, and also to identify the real potential of the urban areas. In order to do so, a geographical information system was used and a set of tools was developed. The methodology was structured to enable its replication in other geographical locations and is sufficiently interactive to allow for the variation of the main input data. A case study in two urban environments is presented in this document to illustrate the developed methodology.展开更多
基金The authors would like to thank the Australian Research Council(ARC)for its financial support for the current study.We also acknowledge the use of facilities within the UOW Electron Microscopy Centre.
文摘Composite materials exhibit advantages from the combination of multiple properties,which cannot be achieved by a monolithic material.At present,the use of composite materials in miniaturized scale is receiving much attention in the fields of medicine,electronics,aerospace,and microtooling.A common method for producing miniaturized composite parts is micromanufacturing.There has been,however,no comprehensive literature published that reviews,compares,and discusses the ongoing micromanufacturing methods for producing miniaturized composite components.This study identifies the major micromanufacturing methods used with composite materials,categorizes their subclasses,and highlights the latest developments,new trends,and effects of key factors on the productivity,quality,and cost of manufacturing composite materials.A comparative study is presented that shows the potential and versatility associated with producing composite materials along with possible future applications.This review will be helpful in promoting micromanufacturing technology for fabricating miniaturized products made of composite materials to meet the growing industrial demand.
文摘In recent years the publication of new legislation in the renewables sector, namely the one related to microgeneration systems, has contributed to an increase in the installation of renewable energy systems in Portugal. Nevertheless, the investment in these systems is still high and the risk of considering sites with reduced resource constitutes a barrier to the development of this sub-sector. In the sequence of the previous work developed in the wind energy planning area, a methodology to identify the sustainable wind and solar potential in urban areas was developed, in order to reduce the pre-installation costs related to a less suitable site selection, and also to identify the real potential of the urban areas. In order to do so, a geographical information system was used and a set of tools was developed. The methodology was structured to enable its replication in other geographical locations and is sufficiently interactive to allow for the variation of the main input data. A case study in two urban environments is presented in this document to illustrate the developed methodology.
