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This project will be conducted over a three year
period. The first objective of the research will involve
the scanning and capture of the ‘true’ 3D structure of a
Macrotermes
michaelseni mound. Ruelle
(1962) and Turner
(2001) have both employed techniques which come close to
visualising
and partially capturing termite mound structures. Ruelle’s
technique of filling the mound with a cementiteous slurry,
then removing the mound walls with water and trowels, revealed
the internal chambers and conduits for the first time as an
indication of its complexity. Turner’s approach was to
take dissections, at 100mm increments, through a mature
Macrotermes
michaelseni mound, which were sequentially photographed
and traced, to define conduits and internal
structure. However, the resolution was too low to
identify and define the reticular nature of the
structure. Capturing the geometry of a termite mound is
now possible using Reverse Engineering techniques. What
differs, in this case, from most scanning techniques is that
we will be capturing both the outside and the inside of the
structure. Techniques such as Magnetic Resonance and
Computed Tomography Imaging can scan both external and internal detail but
must also be ruled out, in this case, as they are neither
portable or cost effective in this application. The
solution is the ‘slice and scan’ procedure demonstrated in
projects such as Visible Human®. The process
works by the sequential milling and digital photographic
scanning of thin layers of a component. It has been
calculated that a mature mound, at 3000mm high and 2000mm
diameter, will require slices at every 1mm in order to obtain
sufficient resolution of the internal structure. Below
this thickness, the amount of data produced would be high, due
to the cross sectional area of each scan taken, producing
around 3,000 scanned images. The images will then be
reconstructed using the same technique employed to reassemble
‘cryosliced’, CT or MRI scan data to form a 3D model of
anatomy. |
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The second objective
of the research involves using the captured geometry to
develop and demonstrate a simulation model to describe the
thermo-regulatory and respiratory gas exchange equilibrium
found in a mound. The input variables, i.e. calculation
of biomass (and therefore, thermal and humidity generation),
measurement of flow within the structure, permeability of the
structure to respiratory gases and external weather conditions
will be both measured and calculated from the body of
knowledge already recorded for these structures, prior to the
commencement of scanning. The model will show the process
of homeostasis in a static structure (if conditions vary,
termites will re-build the structure to re-establish the
equilibrium). |
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The third objective
will be addressed by careful review of the findings obtained
by the assembled team of investigators and collaborators,
together with invited specialists from the UK and overseas in
the fields of construction, manufacture and human sciences.
This will culminate in the bringing together of these experts
for a ‘brainstorming’ workshop. Here, the project findings and
their reviews will be discussed, and lessons identified for
potential further research aimed at assessing the possibility
for some form of homeostatic approach for human construction
and habitation. |