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Browsing Computation for Design and Optimization (CDO) by Issue Date

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Browsing Computation for Design and Optimization (CDO) by Issue Date

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  • Multi-parameter estimation in glacier models with adjoint and algorithmic differentiation 
    Davis, Andrew D. (Andrew Donaldson) (Massachusetts Institute of Technology, 2012)
    The cryosphere is comprised of about 33 million km³ of ice, which corresponds to 70 meters of global mean sea level equivalent [30]. Simulating continental ice masses, such as the Antarctic or Greenland Ice Sheets, requires ...
  • On the Gap-Tooth direct simulation Monte Carlo method 
    Armour, Jessica D (Massachusetts Institute of Technology, 2012)
    This thesis develops and evaluates Gap-tooth DSMC (GT-DSMC), a direct Monte Carlo simulation procedure for dilute gases combined with the Gap-tooth method of Gear, Li, and Kevrekidis. The latter was proposed as a means of ...
  • Particle filtering with Lagrangian data in a point vortex model 
    Mitra, Subhadeep (Massachusetts Institute of Technology, 2012)
    Particle filtering is a technique used for state estimation from noisy measurements. In fluid dynamics, a popular problem called Lagrangian data assimilation (LaDA) uses Lagrangian measurements in the form of tracer positions ...
  • Characterization of unsteady loading due to impeller-diffuser interaction in centrifugal compressors 
    Lusardi, Christopher (Christopher Dean) (Massachusetts Institute of Technology, 2012)
    Time dependent simulations are used to characterize the unsteady impeller blade loading due to imipeller-diffuser interaction in centrifugal compressor stages. The capability of simulations are assessed by comparing results ...
  • A multiscale framework for Bayesian inference in elliptic problems 
    Parno, Matthew David (Massachusetts Institute of Technology, 2011)
    The Bayesian approach to inference problems provides a systematic way of updating prior knowledge with data. A likelihood function involving a forward model of the problem is used to incorporate data into a posterior ...
  • Model simplification of chemical kinetic systems under uncertainty 
    Coles, Thomas Michael Kyte (Massachusetts Institute of Technology, 2011)
    This thesis investigates the impact of uncertainty on the reduction and simplification of chemical kinetics mechanisms. Chemical kinetics simulations of complex fuels are very computationally expensive, especially when ...
  • Adjoint sensitivity analysis of the intercontinental impacts of aviation emissions on air quality and health 
    Koo, Jamin (Massachusetts Institute of Technology, 2011)
    Over 10,000 premature mortalities per year globally are attributed to the exposure to particulate matter caused by aircraft emissions. Unlike previous studies that focus on the regional impacts from the aircraft emissions ...
  • Simulation and design optimization for linear wave phenomena on metamaterials 
    Saà-Seoane, Joel (Massachusetts Institute of Technology, 2011)
    Periodicity can change materials properties in a very unintuitive way. Many wave propagation phenomena, such as waveguides, light bending structures or frequency filters can be modeled through finite periodic structures ...
  • Future characteristics of Offshore Support Vessels 
    Rose, Robin Sebastian Koske (Massachusetts Institute of Technology, 2011)
    The objective of this thesis is to examine trends in Offshore Support Vessel (OSV) design and determine the future characteristics of OSVs based on industry insight and supply chain models. Specifically, this thesis focuses ...
  • Design of a composite combat helmet liner for prevention of blast-induced traumatic brain injury 
    Vechart, Andrew (Andrew Peter) (Massachusetts Institute of Technology, 2011)
    Air blast-induced traumatic brain injuries (TBIs) represent a significant percentage of military personnel injuries observed in Operation Enduring Freedom (OEF) and Operation Iraqi Freedom (OIF). Prevalence of blast-induced ...
  • Optimal corporate investment and financing policies with time-varying investment opportunities 
    Cai, Linjiang (Massachusetts Institute of Technology, 2011)
    Bolton, Chen and Wang (2009) propose a model (the BCW model) of dynamic corporate investment, financing, and risk management for a financially constrained firm. In the BCW model, corporate risk management is a combination ...
  • Computational experiments for local search algorithms for binary and mixed integer optimization 
    Zhou, Jingting, S.M. Massachusetts Institute of Technology (Massachusetts Institute of Technology, 2010)
    In this thesis, we implement and test two algorithms for binary optimization and mixed integer optimization, respectively. We fine tune the parameters of these two algorithms and achieve satisfactory performance. We also ...
  • The effectiveness of a simple policy for coordinating inventory control and pricing strategies 
    Sun, Zhibo, S.M. Massachusetts Institute of Technology (Massachusetts Institute of Technology, 2010)
    We investigate the effectiveness of an (s, S, p) policy relative to an (s, S, A, p) policy in a single product, periodic review, finite horizon model with stochastic multiplicative demand and fixed ordering cost, in which ...
  • Sensitivity analysis of oscillating hybrid systems 
    Saxena, Vibhu Prakash (Massachusetts Institute of Technology, 2010)
    Many models of physical systems oscillate periodically and exhibit both discrete-state and continuous-state dynamics. These systems are called oscillating hybrid systems and find applications in diverse areas of science ...
  • Banded matrices with banded inverses 
    Srinivasa Gopala Raghavan, Venugopalan (Massachusetts Institute of Technology, 2010)
    We discuss the conditions that are necessary for a given banded matrix to have a banded inverse. Although a generic requirement is known from previous studies, we tend to focus on the ranks of the block matrices that are ...
  • Optimization for recipe-based, diet-planning inventory management 
    Kang, Sheng (Massachusetts Institute of Technology, 2010)
    This thesis presents a new modeling framework and research methodology for the study of recipe-based, diet-planning inventory management. The thesis begins with an exploration on the classic optimization problem - the diet ...
  • A decentralized incentive mechanism for company-wide energy consumption reduction 
    Wang, Jingxi, S.M. Massachusetts Institute of Technology (Massachusetts Institute of Technology, 2010)
    This thesis proposes a decentralized reward-based incentive mechanism to address the problem of noncomplying subsidiaries when the parent company wish to meet its targeted energy consumption level. Besides its effectiveness ...
  • Logistic regression for a better matching of buyers and suppliers in e-procurement 
    Tian, Shuo, S.M. Massachusetts Institute of Technology (Massachusetts Institute of Technology, 2010)
    The thesis aims to provide a way to identify better matches between buyers and suppliers who are using an e-procurement platform provided by a US based worldwide online market company. The goal is to enhance the shopping ...
  • Supply chain network for hydrogen transportation in Spain 
    Liang, Li (Massachusetts Institute of Technology, 2010)
    Hydrogen fuel is considered one of the major emerging renewable substitutes for fossil fuel. A crucial factor as to whether hydrogen will be successful depends on its cost as a substitute. Recently, there has been a growing ...
  • Relative effectiveness of inhibition strategies for control of biological signaling pathways 
    Li, Meng, S.M. Massachusetts Institute of Technology (Massachusetts Institute of Technology, 2010)
    Many therapeutically useful and critically important drugs are inhibitors of particular enzymes in a signaling pathway. The efficiency with which an inhibitor inactivates its target can be characterized by the binding ...
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