Simulating spatial partial differential equations with cellular automata

The purpose of this project was to define the relationship and show how an important subset of spatial differential equations can be transformed into cellular automata. Contains source code

Implementation of SExI–FS (Spatially Explicit Individual-based Forest Simulator) Model using UAV Aerial Photo Data Case Study: Jatinangor ITB Campus

Landscape architecture affected by interaction between built and natural environment such as vegetation. Nowadays, landscape architects are using 3D city models for simulations, which requires highly dynamic and time-varying attributes. 3D city modelling structure has been standardized by CityGML, although researches that are related to the storing of dynamic data had been conducted for the past years, it has not been supported by any standard until this very moment. In dynamizer, it is added as a data structure into a CityGML structure that is already existed, although the existing structure is a static one. Kolbe’s research on dynamic data using CityGML called dynamizer could use the spatial data in more dynamic way by changing its geometric, thematic, or appearance data, but its purpose is not specific for trees or vegetation. In this paper, a method of simulating the vegetation growth using SeXI-FS will be discussed to show the dynamic changes that happen in vegetation as part of the dynamic changes in landscape architecture. The result of this research will be used to address the importance of information on vegetation by studying its changes in Jatinangor ITB Campus and as initial research to build dynamizer in CityGML for landscape architecture

Modes of Interaction in Computational Architecture

This thesis is an enquiry into the importance and influence of interaction in architecture, the importance of which is observed through different modes of interaction occurring in various aspects of architectural discourse and practice. Interaction is primarily observed through the different use of software within architectural practice and in the construction of buildings, façades and systems. In turn, the kind of influences software has on architecture is one of the underlying questions of this thesis. Four qualities: Concept, Materiality, Digitization and Interactivity, are proposed as a theoretical base for the analysis and assessment of different aspects of computational architecture. These four qualities permeate and connect the diverse areas of research discussed, including architecture, cybernetics, computer science, interaction design and new media studies, which in combination provide the theoretical background. The modalities of computational architecture analysed here are, digital interior spaces, digitized design processes and communicational exterior environments. The analysis is conducted through case studies: The Fun Palace, Generator Project, Water Pavilion, Tower of Winds, Institute du Monde Arabe, The KPN building, Aegis Hyposurface, BIX Façade, Galleria Department Store, Dexia Tower, and also E:cue, Microstation, Auto-Cad, Rhino, Top Solid and GenerativeComponents software. These are important for discussion because they present different architectural concepts and thoughts about interactivity within architecture. The analytical processes used in the research distinguished and refined, eight modes of interaction: (1) interaction as a participatory process; (2) cybernetic mutualism; (3) thematic interaction; (4) human-computer interaction during architectural design production; (5) interaction during digital fabrication; (6) parametric interaction; (7) kinetic interaction with dynamic architectural forms; and (8) interaction with façades. Out of these, cybernetic mutualism is the mode of interaction proposed by this thesis

Synthetic mixed-signal computation in living cells

Living cells implement complex computations on the continuous environmental signals that they encounter. These computations involve both analogue- and digital-like processing of signals to give rise to complex developmental programs, context-dependent behaviours and homeostatic activities. In contrast to natural biological systems, synthetic biological systems have largely focused on either digital or analogue computation separately. Here we integrate analogue and digital computation to implement complex hybrid synthetic genetic programs in living cells. We present a framework for building comparator gene circuits to digitize analogue inputs based on different thresholds. We then demonstrate that comparators can be predictably composed together to build band-pass filters, ternary logic systems and multi-level analogue-to-digital converters. In addition, we interface these analogue-to-digital circuits with other digital gene circuits to enable concentration-dependent logic. We expect that this hybrid computational paradigm will enable new industrial, diagnostic and therapeutic applications with engineered cells.Fundacao para a Ciencia e a Tecnologia (Fellowship SFRH/BD/51576/2011)National Science Foundation (U.S.) (1350625)National Science Foundation (U.S.) (1124247)United States. Office of Naval Research (N000141310424)National Institutes of Health (U.S.) (New Innovator Award 1DP2OD008435)National Centers for Systems Biology (U.S.) (1P50GM098792

Urban Sprawl of Cuttack-Bhubaneswar Region Using Remote Sensing and ARC-GIS

The world around us is undergoing complete metamorphosis, which is boosted by the population explosion and technological expansion. The problem is more severe for India which has more towns which have to be transformed in to large cities to accommodate its ever-increasing population. In this study an analysis is done by using ARC-GIS (geographic information system) where map of the region was analyzed for recognizing the distribution of land use types throughout the area; land types considered are-Forest, Agricultural, Industrial, Residential, Water bodies. This analysis was performed for three years: 2005, 2010 and 2015. Results obtained show that the area of barren land, forest and agricultural land is continuously decreasing and that of residential land is rapidly increasing because of increase in demand. Maps were again analyzed using Buffer analysis in which Acharya vihar was chosen as the point of interest and multiple circle buffer analysis was performed to study the spread of agricultural and residential areas over the buffers and identify the directions in which the city is expanding, and it was found out that north and north-west directions have undergone massive expansion over the span of 10 year

Applications of topology in computer algorithms

The aim of this paper is to discuss some applications of general topology in computer algorithms including modeling and simulation, and also in computer graphics and image processing. While the progress in these areas heavily depends on advances in computing hardware, the major intellectual achievements are the algorithms. The applications of general topology in other branches of mathematics are not discussed, since they are not applications of mathematics outside of mathematics.Comment: This paper is based on the invited lecture at International Conference on Topology and Applications held in August 23--27, 1999, at Kanagawa University in Yokohama, Japa

Study of mitigation strategies of beam-induced background and Higgs boson couplings measurements at a muon collider.

Abstract in english: The goals of the scientific program of the Higgs boson physics at Future Colliders are: the improvement of the precision on the fermions and bosons coupling measurements, as deviation from the Standard Model could reveal New Physics, and measurement of Higgs boson self-couplings, that enable to determine the Higgs boson potential. The muon collider is a possible future machine in which these physics goals can be reached with enough precision. Indeed, at the high center of mass energies, in the regime of multi-TeV and with the luminosity conditions that are foreseen for such a machine, the single, double and triple Higgs bosons production rates will be high enough to meet the required precision and determine the Higgs potential. However, physics measurements at muon collider can be strongly affected by the huge amount of background that comes from the muon decays along the beam line. The purpose of this thesis is two fold. The first one is to study the properties of the beam-induced background and the proposed mitigation strategies that are necessary to reduce it, with full detector simulation, at a muon collider. In this environment the reconstruction of physical objects, like hadronic jets produced by the fragmentation of quarks is studied. The second one is the evaluation of the sensitivity on the Standard Model double Higgs production cross section measurement at 3 TeV center of mass energy. This analysis is the foundation for the evaluation of the sensitivity on the determination of the Higgs boson trilinear self-coupling at a muon collider. Abstract in italiano: Gli obiettivi del programma scientifico riguardante la fisica del bosone di Higgs ai collisori futuri sono: un aumento della precisione nelle misure degli accoppiamenti ai fermioni e ai bosoni, poiché deviazioni dal Modello Standard possono rivelare nuova fisica, e le misure degli auto-accoppiamenti del bosone di Higgs, che permettono di determinare il potenziale del bosone di Higgs. Il collisore di muoni è un possibile collisore futuro in cui tali obiettivi possono essere raggiunti con sufficiente precisione. Infatti ad energie del centro di massa, nel range del Multi-TeV, e alle condizioni di luminosità previste per tale collisore, i rate di produzione di singolo, doppio e triplo Higgs sono sufficienti per raggiungere le precisioni richieste e determinare il potenziale di Higgs. Tuttavia, le misure di fisica a un collisore di muoni possono essere affette dall’alto livello di fondo indotto dal fascio che deriva dal decadimento dei muoni lungo la linea di fascio. Questa tesi ha un duplice obiettivo: il primo è di studiare le proprietà del fondo indotto dal fascio e le strategie necessarie per ridurlo tramite una simulazione dell’intero detector del collisore di muoni. In tale contesto la ricostruzione di oggetti fisici come jets adronici prodotti dalla frammentazione dei quark sono studiati. Il secondo è la stima della sensitività sulla misura della sezione d’urto di produzione del doppio Higgs all’energia del centro di massa di 3 TeV. Questa analisi è la base per la stima della sensitività nella determinazione dell’ auto-accoppiamento trilineare del bosone di Higgs a un collisore di muon