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微孔PCB堵孔的好处
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作者 stefan albrecht Peter Kersten 李海 《印制电路信息》 2000年第5期38-40,共3页
在不引起成本过度增长的情况下,为了最大限度提高 PCB 的线路密度,必须在 PCB 制造中采用新技术。微孔技术代表这个发展方向的里程碑。PCB 制造商中的这一技术带头人正努力在全球范围推动这一技术。
关键词 微孔 印制电路板 堵孔
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Bio-inspiration as a Concept for Sustainable Constructions Illustrated on Graded Concrete
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作者 Rafael Horn stefan albrecht +5 位作者 Walter Haase Max Langer Daniel Schmeer Werner Sobek Olga Speck Philip Leistner 《Journal of Bionic Engineering》 SCIE EI CSCD 2019年第4期742-753,共12页
The building industry is one of the main contributors to worldwide resource consumption and anthropogenic climate change.Therefore,sustainable solutions in construction are particularly urgent.Inspired by the success ... The building industry is one of the main contributors to worldwide resource consumption and anthropogenic climate change.Therefore,sustainable solutions in construction are particularly urgent.Inspired by the success principles of living nature,biologists and engineers present here an interdisciplinary work:The sustainability assessment of a bio-inspired material technology called graded concrete,which was developed at ILEK.Gradient structural materials can be found in plants on different hierarchical levels,providing a multitude of creative solutions for technology.Graded concrete applies this biological concept of structural optimization to the interior structure of concrete components to minimize material and resource expenditure.To evaluate the sustainability of this innovation,a newly developed quantitative Bio-inspired Sustainability Assessment(BiSA)method is applied.It focuses on the relationship of environmental,social and economic functions and the corresponding burdens quantified basing on life cycle assessment.The BiSA of graded concrete slabs shows significant improvements over conventional concrete for the applied use case.While an overall reduction of environmental burdens by 13%is expected,economic burdens can be reduced by up to 40%and social burdens by 35.7%.The assessment of the graded concrete technology identifies its potential with regard to sustainable construction.The presented work provides a blueprint for the interdisciplinary,integrative work on sustainable,bio-inspired innovations.It shows that the synergies of bio-inspiration and BiSA within technical product development can be fruitful. 展开更多
关键词 SUSTAINABILITY assessment BIO-INSPIRED SUSTAINABILITY GRADED CONCRETE biomimetic PROMISE BiSA
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