55 research outputs found

    Towards a bio-shading system concept design methodology

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    Cities and buildings play a critical role in setting the conditions for human well-being while contributing to more just and environmentally conscious societies and economies. The design of environmentally and socially meaningful buildings has benefitted, in the past two decades, from scientific progress in the fields of computation and materials, as well as from a new way of looking into Nature as an inspirational example. This research focuses on the design of shading systems for building façades, assuming that biomimetics and computational design are a valid and proved combination. The main research question is how to develop architectural shading systems mimicking the adaptation strategies of Nature. The challenge is addressed by developing a design methodology for the creation and optimization of solar control systems based on the biological adaptive systems of terrestrial plants; creating a transfer and interpretation process of biological concepts to an architectural lexicon; and creating a universal methodology applicable to a diverse set of climatic, functional and local contexts. The research proposes a bioshading system design methodology, developed on a problem-based approach. Starting with the architectural challenge of design, solutions are sought in Nature to solve specific performance requirements of shading systems. The development of the methodology rests upon an informed process that integrates and interrelates three domains: architecture, Nature, and artifact. The ‘architecture’ domain is based on the conceptual process, the computational and parametric environmental analysis, and a diagnosis that informs the understanding of the performance requirements that need to be fulfilled. The ‘Nature’ domain is defined through an abstraction process: sustained by a mapping of plants’ features and adaptation strategies, the creation of a meme semantics triggers a performance-based design process. The ‘artifact’ domain is the physical materialization of the design concept, enabling its evaluation and emulation. The Nature-inspired design methodology developed in this research makes it possible for architects to solve the challenges of shading building façades, integrating local climate-related performance requirements with formal architectural criteria, using biomimicry as a mediator. In a step-by-step path, the user identifies specific project-related requirements, discovers and explores natural processes that guide inspiration, and conceptualizes a design proposal that is further simulated and prototyped.As cidades e os edifícios desempenham um papel crítico na definição das condições para o bem-estar humano, contribuindo para sociedades e economias mais justas e ambientalmente conscientes. O projeto de edifícios com significado ambiental e social beneficiou, nas últimas duas décadas, do progresso científico nos campos da computação e dos materiais, bem como de uma nova forma de encarar a natureza enquanto modelo inspirador. Esta investigação centra-se no design de sistemas de sombreamento para fachadas de edifícios, assumindo que a biomimética e o design computacional são uma combinação válida e comprovada. A principal questão de investigação é como desenvolver sistemas de sombreamento arquitetónicos mimetizando as estratégias de adaptação da natureza. O desafio é abordado através do desenvolvimento de uma metodologia de projeto para a criação e otimização de sistemas de controlo solar tendo por base os sistemas de adaptação biológicos das plantas vasculares terrestres; criação de um processo de transferência e interpretação de conceitos biológicos para um léxico arquitetónico; e criação uma metodologia universal aplicável a um conjunto diversificado de contextos climáticos, funcionais e locais. A presente investigação propõe uma metodologia de projeto de sistema bioshading, desenvolvida através de uma abordagem problem-based. Partindo do desafio arquitetónico de projeto, são procuradas soluções na natureza para resolver requisitos de desempenho específicos de sistemas de sombreamento. O desenvolvimento da metodologia tem por base um processo informado que integra e interrelaciona três domínios: arquitetura, Natureza e artefacto. O domínio 'arquitetura' tem por base o processo conceptual, na análise ambiental computacional e paramétrica e num diagnóstico que informa o entendimento dos requisitos de desempenho a serem cumpridos. O domínio 'Natureza' é definido por meio de um processo de abstração: sustentado por um mapeamento de recursos e estratégias de adaptação das plantas, a criação de uma semântica de memes desencadeia um processo de design com base no desempenho. O domínio "artefacto" é a materialização física do conceito de design, permitindo a sua avaliação e emulação. A metodologia de design inspirada na natureza desenvolvida neste trabalho de investigação possibilita aos arquitetos resolverem os desafios de sombreamento de fachadas de edifícios, integrando os requisitos locais de desempenho relacionados com o clima com critérios formais de arquitetura, usando a biomimética como mediadora. Num percurso progressivo evolutivo, o utilizador identifica requisitos específicos do projeto, descobre e explora processos naturais que orientam a inspiração e conceptualiza uma proposta de projeto que é simulada e prototipada

    Active Materials

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    What is an active material? This book aims to redefine perceptions of the materials that respond to their environment. Through the theory of the structure and functionality of materials found in nature a scientific approach to active materials is first identified. Further interviews with experts from the natural sciences and humanities then seeks to question and redefine this view of materials to create a new definition of active materials

    Active Materials

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    What is an active material? This book aims to redefine perceptions of the materials that respond to their environment. Through the theory of the structure and functionality of materials found in nature a scientific approach to active materials is first identified. Further interviews with experts from the natural sciences and humanities then seeks to question and redefine this view of materials to create a new definition of active materials

    Supercapacitors for the Next Generation

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    Supercapacitors are presently applied in various devices and have the potential to be used in many fields in the future. For example, the use of supercapacitors is currently limited not only to automobiles, buses, and trucks, which have been electrified recently, but also to railways and aircraft. We believe that these devices are the most suitable physical batteries for absorbing regenerative energy produced during motor regeneration; thus, further research and development in this direction is expected in the future

    Light in correlated disordered media

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    The optics of correlated disordered media is a fascinating research topic emerging at the interface between the physics of waves in complex media and nanophotonics. Inspired by photonic structures in nature and enabled by advances in nanofabrication processes, recent investigations have unveiled how the design of structural correlations down to the subwavelength scale could be exploited to control the scattering, transport and localization of light in matter. From optical transparency to superdiffusive light transport to photonic gaps, the optics of correlated disordered media challenges our physical intuition and offers new perspectives for applications. This article reviews the theoretical foundations, state-of-the-art experimental techniques and major achievements in the study of light interaction with correlated disorder, covering a wide range of systems -- from short-range correlated photonic liquids, to L\'evy glasses containing fractal heterogeneities, to hyperuniform disordered photonic materials. The mechanisms underlying light scattering and transport phenomena are elucidated on the basis of rigorous theoretical arguments. We overview the exciting ongoing research on mesoscopic phenomena, such as transport phase transitions and speckle statistics, and the current development of disorder engineering for applications such as light-energy management and visual appearance design. Special efforts are finally made to identify the main theoretical and experimental challenges to address in the near future.Comment: Submitted to Reviews of Modern Physics. Feedbacks are welcom

    21st Century Nanostructured Materials

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    Nanostructured materials (NMs) are attracting interest as low-dimensional materials in the high-tech era of the 21st century. Recently, nanomaterials have experienced breakthroughs in synthesis and industrial and biomedical applications. This book presents recent achievements related to NMs such as graphene, carbon nanotubes, plasmonic materials, metal nanowires, metal oxides, nanoparticles, metamaterials, nanofibers, and nanocomposites, along with their physical and chemical aspects. Additionally, the book discusses the potential uses of these nanomaterials in photodetectors, transistors, quantum technology, chemical sensors, energy storage, silk fibroin, composites, drug delivery, tissue engineering, and sustainable agriculture and environmental applications

    The benefits of an additional practice in descriptive geomerty course: non obligatory workshop at the Faculty of Civil Engineering in Belgrade

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    At the Faculty of Civil Engineering in Belgrade, in the Descriptive geometry (DG) course, non-obligatory workshops named “facultative task” are held for the three generations of freshman students with the aim to give students the opportunity to get higher final grade on the exam. The content of this workshop was a creative task, performed by a group of three students, offering free choice of a topic, i.e. the geometric structure associated with some real or imagery architectural/art-work object. After the workshops a questionnaire (composed by the professors at the course) is given to the students, in order to get their response on teaching/learning materials for the DG course and the workshop. During the workshop students performed one of the common tests for testing spatial abilities, named “paper folding". Based on the results of the questionnairethe investigation of the linkages between:students’ final achievements and spatial abilities, as well as students’ expectations of their performance on the exam, and how the students’ capacity to correctly estimate their grades were associated with expected and final grades, is provided. The goal was to give an evidence that a creative work, performed by a small group of students and self-assessment of their performances are a good way of helping students to maintain motivation and to accomplish their achievement. The final conclusion is addressed to the benefits of additional workshops employment in the course, which confirmhigherfinal scores-grades, achievement of creative results (facultative tasks) and confirmation of DG knowledge adaption

    The contemporary visualization and modelling technologies and the techniques for the design of the green roofs

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    The contemporary design solutions are merging the boundaries between real and virtual world. The Landscape architecture like the other interdisciplinary field stepped in a contemporary technologies area focused on that, beside the good execution of works, designer solutions has to be more realistic and “touchable”. The opportunities provided by Virtual Reality are certainly not negligible, it is common knowledge that the designs in the world are already presented in this way so the Virtual Reality increasingly used. Following the example of the application of virtual reality in landscape architecture, this paper deals with proposals for the use of virtual reality in landscape architecture so that designers, clients and users would have a virtual sense of scope e.g. rooftop garden, urban areas, parks, roads, etc. It is a programming language that creates a series of images creating a whole, so certain parts can be controlled or even modified in VR. Virtual reality today requires a specific gadget, such as Occulus, HTC Vive, Samsung Gear VR and similar. The aim of this paper is to acquire new theoretical and practical knowledge in the interdisciplinary field of virtual reality, the ability to display using virtual reality methods, and to present through a brief overview the plant species used in the design and construction of an intensive roof garden in a Mediterranean climate, the basic characteristics of roofing gardens as well as the benefits they carry. Virtual and augmented reality as technology is a very powerful tool for landscape architects, when modeling roof gardens, parks, and urban areas. One of the most popular technologies used by landscape architects is Google Tilt Brush, which enables fast modeling. The Google Tilt Brush VR app allows modeling in three-dimensional virtual space using a palette to work with the use of a three dimensional brush. The terms of two "programmed" realities - virtual reality and augmented reality - are often confused. One thing they have in common, though, is VRML - Virtual Reality Modeling Language. In this paper are shown the ways on which this issue can be solved and by the way, get closer the term of Virtual Reality (VR), also all the opportunities which the Virtual reality offered us. As well, in this paper are shown the conditions of Mediterranean climate, the conceptual solution and the plant species which will be used by execution of intensive green roof on the motel “Marković”
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