Sungwoo Lim

Sungwoo Lim
The Open University (UK) · Department of Physical Sciences

Doctor of Engineering

About

37
Publications
26,212
Reads
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2,869
Citations
Citations since 2016
9 Research Items
2627 Citations
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20162017201820192020202120220100200300400500600
20162017201820192020202120220100200300400500600
20162017201820192020202120220100200300400500600

Publications

Publications (37)
Poster
Full-text available
This poster describes a set of initial experiments investigating microwave heating as a technique for extracting water from icy simulants. Both the extraction efficiency and the optimum heating time for different simulants are discussed.
Article
Sustainable exploration of the Moon could benefit from a microwave heating-based 3D Printing technology for In-Situ Resource Utilisation (ISRU) purposes such as for the fabrication of habitats and extraction of resources on the Moon. In this context, we have developed a Microwave Heating Demonstrator (MHD) payload concept, which can perform pre-def...
Article
Full-text available
For a sustainable human presence on the Moon, it is critical to develop technologies that could utilise the locally available resources (a.k.a. in situ resource utilisation or ISRU) for habitat construction. As the surface soil is one of the most widely available resources at the Moon, we have investigated the viability of microwave heating of a lu...
Article
Full-text available
The purpose of this study was to deploy a Delphi expert elicitation methodology to better understand the technical and policy challenges facing the development of a sustainable lunar outpost in 2040, including the types and scale of ISRU deployment. We used a three-round Delphi survey with an open first round and specific questions in later rounds...
Article
Full-text available
The purpose of this study was to establish, on a first principles basis, the order of magnitude of energy requirements for a thermally processed, lunar regolith radiation shield constructed using an in-situ resource utilisation (ISRU) approach. This was done by developing a reference scenario habitat and using thermodynamic relationships and specif...
Article
Government space agencies, including NASA and ESA, are conducting preliminary studies on building alternative space-habitat systems for deep-space exploration. Such studies include development of advanced technologies for planetary surface exploration, including an in-depth understanding of the use of local resources. Currently, NASA plans to land...
Article
The future of human space exploration will inevitably involve longer-term stays and possibly permanent settlement on the surfaces of other planetary bodies. It will, therefore, be advantageous or perhaps even necessary to utilise local resources for building an infrastructure for human habitation on the destination planetary body. In this context h...
Article
Full-text available
In this paper, a non-conventional way of additive manufacturing, curved-layered printing, has been applied to large-scale construction process. Despite the number of research works on Curved Layered Fused Deposition Modelling (CLFDM) over the last decade, few practical applications have been reported. An alternative method adopting the CLFDM princi...
Article
Full-text available
The formal approach outlined in this paper uses symbolic memes as a framework for the hierarchical deconstruction of a cultural artefact, the traditional Korean pattern known as bosangwhamun, to describe the evolutionary development of such a pattern using shape grammar rules. The formal descriptions of this pattern are thus the basis for generatin...
Article
Full-text available
This paper presents the experimental results concerning the mix design and fresh properties of a high-performance fibre-reinforced fine-aggregate concrete for printing concrete. This concrete has been designed to be extruded through a nozzle to build layer-by-layer structural components. The printing process is a novel digitally controlled additive...
Article
This paper discusses a comparative study of national business support programmes in design operated by National Design Centres (NDCs) in the UK and South Korea. The research identified the drivers for, and barriers to, implementing national support programmes in design and presents the recommendations for new approaches to the development and imple...
Article
Full-text available
This paper presents the hardened properties of a high-performance fibre-reinforced fine-aggregate concrete extruded through a 9 mm diameter nozzle to build layer-by-layer structural components in a printing process. The printing process is a digitally controlled additive method capable of manufacturing architectural and structural components withou...
Article
Full-text available
A novel Concrete Printing process has been developed, inspired and informed by advances in 3D printing, which has the potential to produce highly customised building components. Whilst still in their infancy, these technologies could create a new era of architecture that is better adapted to the environment and integrated with engineering function....
Article
Full-text available
Additive manufacturing in construction is beginning to move from an architect's modelling tool to delivering full-scale architectural components and elements of buildings such as walls and facades. This paper discusses large-scale additive manufacturing processes that have been applied in the construction and architecture arena and focuses on ‘Conc...
Article
National design policies can encourage businesses to use design to develop and implement new products and services. They can even help solve some of the wicked problems that so plague the public sector. Taking the UK and South Korea as starting points, this paper explores some alternative models for developing and implementing these policies.
Article
Full-text available
This paper develops a formal approach to investigate the evolution of a Korean traditional pattern, Bosangwhamun. The approach employs the structure of symbolic memes embedded in the pattern as a framework of hierarchical decomposition of a pattern to describe an evolutionary development process of a given pattern with a set of rules in shape gramm...
Article
This paper is concerned with how design shapes are generated and explored by means of sketching. It presents research into the way designers transform shapes from one state to another using sketch representations. An experimental investigation of the sketching processes of designers is presented. Connections between sketches are defined in terms of...
Article
Full-text available
The process of sketching can support the sort of transformational thinking that is seen as essential for the interpretation and reinterpretation of ideas in innovative design. Such transformational thinking, however, is not yet well supported by computer-aided design systems. In this paper, outcomes of experimental investigations into the mechanics...
Article
Full-text available
The process of sketching can support the sort of transformational thinking that is seen as essential for the interpretation and reinterpretation of ideas in innovative design (Suwa 2003). In this paper, the initial outputs and findings of an ongoing project called Design Synthesis and Shape Generation are described based on experimental investigati...
Article
Full-text available
Shape grammars have been used to explore design spaces through design generation according to sets of shape rules with a recursive process. Although design space exploration is a persistent issue in computational design research, there have been few studies regarding the provision of more preferable and refined outcomes to designers. This paper pre...
Conference Paper
Full-text available
A novel intelligent approach into 3D freeform surface reconstruction from planar sketches is proposed. A multilayer perceptron (MLP) neural network is employed to induce 3D freeform surfaces from planar freehand curves. Planar curves were used to represent the boundaries of a freeform surface patch. The curves were varied iteratively and sampled to...
Conference Paper
We propose a novel intelligent approach into 2D to 3D of on-line sketching in conceptual design. A Multilayer Perceptron (MLP) neural network is employed to construct 3D freeform surfaces from 2D freehand curves. Planar curves were used to represent the boundary strokes of a freeform surface patch and varied iteratively to produce a training set. S...
Article
Full-text available
During conceptual design, a designer may wish to describe a shape vaguely, either because it is desired that the shape remains flexible or the shape has not yet been defined precisely. Maintaining the vagueness of an early idea until it is sufficiently developed is often of vital importance. However, most existing systems, mainly due to limitations...
Conference Paper
Full-text available
An iso-sketcher is presented, linked to an underlying vague geometric modeller, as a candidate tool to support “rapid capture and use of geometric concepts in early design”. The key element of the approach has been the use of “linking” to make crucial distinctions between the substance of a sketch or drawing (and physical graphical operations appli...
Article
The induction of a NURBS freeform surface from an on-line sketch is presented in this paper. This work supports the inference of 3D geometry based on input 2D freehand sketches to support conceptual design. A multi-layer Perceptron (MLP) artificial neural network (ANN) was designed by a series of experiments and implemented to learn the relationshi...

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