Portable Low‐Pressure Solar Steaming‐Collection Unisystem with Polypyrrole Origamis
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چکیده
منابع مشابه
Origamis with non congruence Veech groups
The basic idea of an origami is to obtain a topological surface from a few combinatorial data by gluing finitely many Euclidean unit squares according to specified rules. These surfaces come with a natural translation structure. One assigns in general to a translation surface a subgroup of GL2(R) called the Veech group. In the case of surfaces defined by origamis, the Veech groups are finite in...
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By pure analogy with a usual three-dimensional origami, we can fold a regular octahedral material along flat faces in 4-space. The octahedron comprises four congruent tetrahedra. We will show a procedure to fold a tetrahedron along bisectors of the dihedral angles. This procedure demonstrates that each two of four surfaces of the given tetrahedron coincide with each other and that the point of ...
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Origami is the art of folding pieces of paper into works of sculpture without the aid of scissors or glue. Modern advancements in the complexity of origami (e.g., the work of Montroll and Maekawa) reveal a rich geometric structure governing the possibilities of paperfolding. In this paper we initiate a mathematical study of this \origami geometry" and explore the possibilities of a graph the-or...
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Programmable matter is a material that produces distinctive shapes or patterns according to a given command. Often they are composed of interconnected modular elements that are able to make or break the connections or alter relative orientation. We present programmable matter based on robotic origami that demonstrates the capability to fold into 3D shapes starting from a nominally 2D sheet. Thi...
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ژورنال
عنوان ژورنال: Advanced Materials
سال: 2019
ISSN: 0935-9648,1521-4095
DOI: 10.1002/adma.201900720