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Fernando Ramos-Quintana,Victor Hugo Zarate-Silva,Juan Alvarez 한국과학기술원 인간친화 복지 로봇 시스템 연구센터 2005 International Journal of Assistive Robotics and Me Vol.6 No.2
This paper describes an initiative to introduce mechanisms oriented to create motivational attitudes for developing applied research in the undergraduate level, instead of focusing such efforts only in the graduate level. An important part of these efforts are carried out under the framework of several robotics projects, in particular walking robots and simulated and real soccer robots. Along with this, a curriculum to assure long term technical goals has been specially designed. Thus, the projects should provide the necessary ingredients to encourage the students to develop autonomous behaviors and maintain persistent motivational attitudes by interacting with attractive technical challenges.<BR> We have adopted formal learning models that help to develop cognitive skills for solving problems, such as Problem Based Learning (PBL). In a first step, during four semesters of the years 2002 and 2003, the PBL model, along with projects in soccer robots, has been applied in the undergraduate and graduate level. Since 2004 these efforts have been focused on the undergraduate level. And, we have already witnessed some key results; the students have acquired interesting motivational attitudes in applied research projects in robotics; they have developed cognitive skills for solving problems; and they have got successful participations in international robotics competitions.
Sustainable mold biomachining for the manufacturing of microfluidic devices
Arrate Santaolalla,Yara Alvarez-Braña,Astrid Barona,Lourdes Basabe-Desmonts,Fernando Benito-Lopez,Naiara Rojo 한국공업화학회 2023 Journal of Industrial and Engineering Chemistry Vol.120 No.-
Biomachining has been investigated as a sustainable and effective alternative to conventional prototypingtechniques for molding polymeric materials for their subsequent use as microfluidic devices. A noveland simple process based on the combination of a Pressure Sensitive Adhesive mask and a varnish hasbeen proposed for preparing metal workpieces as an alternative to photolithography, with the latterbeing the most widely used technique for protecting workpieces. As far as the bioprocess is concerned,it has been applied in successive mold-etching and oxidant bio-regeneration stages. Metal solubilizationhas proven to be repeatable in several consecutive mold-etching stages when using the regenerated oxidantsolution. As a result, the lifespan of the biomachining medium has been prolonged, contributing toprocess sustainability. An equation with two restrictions has been proposed to predict the time requiredto obtain a mold with a fixed height, as metal solubilization evolves differently between the first and subsequenthours. Finally, the bio-engraved copper pieces have acted as effective molds in the fabrication ofself-powered polydimethylsiloxane microfluidic devices. This new biomachining application is thereforean effective and ecofriendly process for producing microfluidic devices.