Modificacions estructurals i arquitectóniques d’un Origami/mòbil

El cas de intervenció que presentem, tracta d’una escultura monumental d’Origami/Movil, construïda amb cartolina de fibres de lli. L’obra està suspesa del sostre per fins cordills de cotó fins a l’alçada de l’abast de la gent, i instal·lada en el vestíbul de una sala d’actes.L’ humitat ambiental absorbida per el paper de l’origami, i el propi pes de la peça,es la causa de que els plecs del paper en lloc de mantenir-se rìgits i rectes, es dobleguessin i estiguessin flàccids, perdent la seva funcionalitat estructural característics de aquesta mena d’obres.La intervenció que efectuada es centrà en retornar la rigidesa dels plecs del paper, a la vagada que modifiquen l’alçada de la seva instal·lació, escorçant la llargada total de la peça, per evitar ser tocada pel públic.

Desarrollo de las competencias básicas a través del origami.

Seleccionado en la convocatoria: Ayudas a la innovación e investigación educativa en centros docentes de niveles no universitarios, Gobierno de Aragón 2010-11

Enseñar y aprender matemáticas con origami

Resumen tomado de la publicación

Uma contribuição para o ensino de geometria utilizando origami e caleidoscópio

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Ensino e aprendizagem de poliedros regulares via a teoria de Van Hiele com origami

Pós-graduação em Matemática em Rede Nacional - IBILCE

Origami: o uso como instrumento alternativo no ensino da geometria

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Origami e kirigami: arte e cultura como recurso lúdico e educativo

We can know a people through their cultural and artistic assets. One of the many aspects of Japanese culture is origami, a fusion of the verb “oru”, which means folding, with the word “kami” meaning paper. In this communication, we describe the course “Origami and Kirigami: art and culture as a recreational and educational resource”. The course aimed to present these two oriental techniques based on paper and its potential as a source of entertainment and education, at the same time seeking to introduce cultural aspects of these arts of folding and/or cutting paper. This practice is more common than we realize, and is present in our day-to-day life when we perform actions such as folding clothes and papers, and making packages, amongst others. However, few are aware of the benefits that this folding brings to the fields of Arts, Mathematics, and Science, besides its recreational characteristics. Kirigami is a mixed technique that in addition to using folds in the paper (as in origami) also uses cuts (“kiru” – meaning, “cut”). It can be performed with heavier paper than origami, and by introducing some cuts, the paper can be folded to form the desired shape. It is a simple technique, with impressive results. We conducted eight weekly meetings, each lasting four hours, totaling 32 hours of coursework. In addition to the classes, a visit was made to the Okinawa Club in Bauru (São Paulo), where it was possible for the students of the course and the elderly group (fujinkai) of origamists of the club to exchange experiences. Finally, an exhibition was organized to display the artifacts produced by the course participants and disseminate the work of the students.

Origami científico: a linguagem das dobraduras dentro do design contemporâneo

After crossing several generations and countries, broader functions are being incorporated to origami than simply making art objects: the fold initiates a series of new buildings within the design and creation. Under the new repre- sentations and performances that the art of paper folding keeps, this article aims to investigate how the origami is configured nowadays and how it behaves while contemporary language applied to projective processes of diverse natures. To better understand the actual origami, relations are used inside branch of math, conceptual and projectual. Relating theorists, artists, designers, etc., can point out the relevance of each of these areas in the configuration of cientific and projectual origami. The modularity, the collective, the conscious build, the contemporary and the inno- vation are relationships intrinsic to the praxis projectual that shape a landscape adjacent and subordinate to the main structure governing. It bets on the essence of origami as a tangible functionality for creative thinking.

Origami contemporâneo: um estudo sobre a arte em dobra e sua mutabilidade prática

This article aims to seek new forms of creative and artistic expression origami nowadays. After crossing many generations and countries, we noted that the functions of origami are much broader than simply making folding paper: the folding has promoted a number of new buildings within the hybrid design and creativity. Modularity, the collective, the build conscious, contemporary and innovation are intrinsic relations to artistic praxis that configure an adjacent scenario and subordinate to the main structure that govern this research project. We believe in the essence of origami as a tangible functionality for creative thinking.

Dalla geometria con riga e compasso alla geometria con origami

Lo scopo di questo lavoro è mostrare la potenza della teoria di Galois per caratterizzare i numeri complessi costruibili con riga e compasso o con origami e la soluzione di problemi geometrici della Grecia antica, quali la trisezione dell’angolo e la divisione della circonferenza in n parti uguali. Per raggiungere questo obiettivo determiniamo alcune relazioni significative tra l’assiomatica delle costruzioni con riga e compasso e quella delle costruzioni con origami, antica arte giapponese divenuta recentemente oggetto di studi algebrico-geometrici. Mostriamo che tutte le costruzioni possibili con riga e compasso sono realizzabili con il metodo origami, che in più consente di trisecare l’angolo grazie ad una nuova piega, portando ad estensioni algebriche di campi di gradi della forma 2^a3^b. Presentiamo poi i risultati di Gauss sui poligoni costruibili con riga e compasso, legati ai numeri primi di Fermat e una costruzione dell’eptadecagono regolare. Concludiamo combinando la teoria di Galois e il metodo origami per arrivare alla forma generale del numero di lati di un poligono regolare costruibile mediante origami e alla costruzione esplicita dell’ettagono regolare.

Architecture Global Aid - Origami Houses (after tsunami houses), Tokyo, Miyagi, Giappone, 2013

This publication approaches the element of the "refuge" by showing several built prototypes designed and built by the author of this Ph.D and Yuko Ono that were effectively used as temporary shelters in Japan by the refugees in 2013. They consist on seven small wooden houses that can float and can also be packed into boxes and used as shelters following natural disasters. This publication explains both in Italian, English, Japanese and through small drawn diagrams the construction of these prototypes thanks to the help group "Architecture Global Aid" created by the author of this Ph.D in Japan (www.facebook.com/architectureglobalaid). Finally, this refuges can be as well seen in pages 660-664 of the Ph.D text were several kinds of architectures for shelters are analyzed. Esta publicación analiza el elemento del ?refugio? a través de varios ejemplos diseñados y construidos por la autora de este doctorado y la arquitecta Yuko Ono que fueron utilizados en la recuperación de Japón en el año 2013. Consisten en siete refugios de madera que pueden flotar y doblarse e introducirse en cajas del mismo material y de este modo, ser extraídos y empleados tras un desastre natural. Esta publicación explica en italiano, inglés, japonés y mediante varios diagramas, la construcción de estos prototipos gracias al grupo de ayuda ?Architecture Global Aid? creado por la autora de este doctorado en Japón (www.facebook.com/architectureglobalaid). Por último, la referencia a la investigación acerca de estos prototipos se puede encontrar en las páginas 660-664 de la tesis doctoral, entre las que se investiga también acerca de otras arquitecturas del refugio.

How to make origami; the art of paper folding,

16 sheets of col. paper in pocket.

Low‑cost origami fabrication of 3D self‑aligned hybrid microfluidic structures

[EN] 3D microfluidic device fabrication methods are normally quite expensive and tedious. In this paper, we present an easy and cheap alternative wherein thin cyclic olefin polymer (COP) sheets and pressure sensitive adhesive(PSA) were used to fabricate hybrid 3D microfluidic structures, by the Origami technique, which enables the fabrication of microfluidic devices without the need of any alignment tool. The COP and PSA layers were both cut simultaneously using a portable, low-cost plotter allowing for rapid prototyping of a large variety of designs in a single production step. The devices were then manually assembled using the Origami technique by simply combining COP and PSA layers and mild pressure. This fast fabrication method was applied, as proof of concept, to the generation of a micromixer with a 3D-stepped serpentine design made of ten layers in less than 8 min. Moreover, the micromixer was characterized as a function of its pressure failure, achieving pressures of up to 1000 mbar. This fabrication method is readily accessible across a large range of potential end users, such as educational agencies (schools,universities), low-income/developing world research and industry or any laboratory without access to clean room facilities, enabling the fabrication of robust, reproducible microfluidic devices.