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Browsing MIT Open Access Articles by Title

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  • Sacred Cars? Cost-Effective Regulation of Stationary and Nonstationary Pollution Sources 
    Fowlie, Meredith; Knittel, Christopher Roland; Wolfram, Catherine (American Economic Association, 2012-02)
    For political and practical reasons, environmental regulations sometimes treat point-source polluters, such as power plants, differently from mobile-source polluters, such as vehicles. This paper measures the extent of ...
  • Saddle Point in the Minimax Converse for Channel Coding 
    Polyanskiy, Yury (Institute of Electrical and Electronics Engineers, 2013-05)
    A minimax metaconverse has recently been proposed as a simultaneous generalization of a number of classical results and a tool for the nonasymptotic analysis. In this paper, it is shown that the order of optimizing the ...
  • Safe and Efficient Tetrazole Synthesis in a Continuous Flow Microreactor 
    Palde, Prakash B.; Jamison, Timothy F. (Wiley Blackwell, 2011-03)
    Safer flow: The synthesis of 5-substituted tetrazoles in flow (see scheme) is safe, efficient, scalable, requires no metal promoter, and uses a near-equimolar amount of NaN[subscript 3], yet nonetheless displays a broad ...
  • Safe Fall: Humanoid robot fall direction change through intelligent stepping and inertia shaping 
    Yun, Seung-kook; Goswami, Ambarish; Sakagami, Yoshiaki (Institute of Electrical and Electronics Engineers (IEEE), 2009-08)
    Although fall is a rare event in the life of a humanoid robot, we must be prepared for it because its consequences are serious. In this paper we present a fall strategy which rapidly modifies the robot's fall direction in ...
  • Safety control of hidden mode hybrid systems 
    Verma, Rajeev; Del Vecchio, Domitilla (Institute of Electrical and Electronics Engineers, 2011-12)
    In this paper, we consider the safety control problem for hidden mode hybrid systems (HMHSs), which are a special class of hybrid automata in which the mode is not available for control. For these systems, safety control ...
  • Safety control of piece-wise continuous order preserving systems 
    Ghaemi, Reza; Del Vecchio, Domitilla (Institute of Electrical and Electronics Engineers, 2011-12)
    This paper is concerned with safety control of systems with imperfect state information and disturbance input. Specifically, we consider the class of systems whose dynamics preserve a partial ordering. We provide necessary ...
  • Safety-Driven Design for Software-Intensive Aerospace and Automotive Systems 
    Stringfellow, Margaret V.; Leveson, Nancy G.; Owens, Brandon D. (Institute of Electrical and Electronics Engineers, 2010-03)
    Too often, systems are designed and then an attempt is made to add safety features or to prove that the design is safe after the fact. Safety has to be designed into a system from the start-it cannot be effectively added ...
  • Saints, heroes, sages, and villains 
    Markovits, Julia (Springer Science + Business Media B.V., 2012-03)
    This essay explores the question of how to be good. My starting point is a thesis about moral worth that I’ve defended in the past: roughly, that an action is morally worthy if and only it is performed for the reasons ...
  • Sample covariance based estimation of Capon algorithm error probabilities 
    Richmond, Christ D.; Movassagh, Ramis; Movassagh, Ramis; Edelman, Alan (Institute of Electrical and Electronics Engineers (IEEE), 2011-04)
    The method of interval estimation (MIE) provides a strategy for mean squared error (MSE) prediction of algorithm performance at low signal-to-noise ratios (SNR) below estimation threshold where asymptotic predictions fail. ...
  • Sampling-based algorithm for filtering using Markov chain approximations 
    Karaman, Sertac; Frazzoli, Emilio; Chaudhari, Pratik Anil (Institute of Electrical and Electronics Engineers (IEEE), 2012-12)
    In this paper, the filtering problem for a large class of continuous-time, continuous-state stochastic dynamical systems is considered. Inspired by recent advances in asymptotically-optimal sampling-based motion planning ...
  • Sampling-based algorithms for continuous-time POMDPs 
    Chaudhari, Pratik Anil; Karaman, Sertac; Frazzoli, Emilio; Hsu, David (Institute of Electrical and Electronics Engineers (IEEE), 2013-06)
    This paper focuses on a continuous-time, continuous-space formulation of the stochastic optimal control problem with nonlinear dynamics and observation noise. We lay the mathematical foundations to construct, via incremental ...
  • Sampling-based algorithms for optimal motion planning 
    Karaman, Sertac; Frazzoli, Emilio (Sage Publications, 2011-06)
    During the last decade, sampling-based path planning algorithms, such as probabilistic roadmaps (PRM) and rapidly exploring random trees (RRT), have been shown to work well in practice and possess theoretical guarantees ...
  • Sampling-based motion planning with deterministic mu-calculus specifications 
    Frazzoli, Emilio; Karaman, Sertac (Institute of Electrical and Electronics Engineers, 2010-01)
    In this paper, we propose algorithms for the on-line computation of control programs for dynamical systems that provably satisfy a class of temporal logic specifications. Such specifications have recently been proposed in ...
  • Sampling-based motion planning with deterministic u-calculus specifications 
    Karaman, Sertac; Frazzoli, Emilio (Institute of Electrical and Electronics Engineers, 2010-01)
    In this paper, we propose algorithms for the online computation of control programs for dynamical systems that provably satisfy a class of temporal logic specifications. Such specifications have recently been proposed ...
  • Sampling-Based Threat Assessment Algorithms for Intersection Collisions Involving Errant Drivers 
    Aoude, Georges; How, Jonathan P.; Luders, Brandon Douglas; Pilutti, Tom E. (2010-09)
    This paper considers the decision-making problem for a vehicle crossing a road intersection in the presence of other, potentially errant, drivers. This problem is considered in a game-theoretic framework, where the errant ...
  • A sampling framework for incorporating quantitative mass spectrometry data in protein interaction analysis 
    Loh, Po-Ru; Berger, Bonnie; Tucker, George Jay (BioMed Central Ltd, 2013-10)
    Background: Comprehensive protein-protein interaction (PPI) maps are a powerful resource for uncovering the molecular basis of genetic interactions and providing mechanistic insights. Over the past decade, high-throughput ...
  • Sapap3 Deletion Anomalously Activates Short-Term Endocannabinoid-Mediated Synaptic Plasticity 
    Chen, Meng; Wan, Yehong; Ade, Kristen; Ting, Jonathan; Feng, Guoping; Calakos, Nicole (Society for Neuroscience, 2011-06)
    Retrograde synaptic signaling by endocannabinoids (eCBs) is a widespread mechanism for activity-dependent inhibition of synaptic strength in the brain. Although prevalent, the conditions for eliciting eCB-mediated synaptic ...
  • Satellite Retrievals of Arctic and Equatorial Rain and Snowfall Rates Using Millimeter Wavelengths 
    Surussavadee, Chinnawat; Staelin, David H. (Institute of Electrical and Electronics Engineers, 2009-10)
    A new global precipitation retrieval algorithm for the millimeter-wave Advanced Microwave Sounding Unit is presented that also retrieves Arctic precipitation rates over surface snow and ice. This algorithm improves upon ...
  • Sato–Tate distributions and Galois endomorphism modules in genus 2 
    Kedlaya, Kiran S.; Sutherland, Andrew Victor; Fite, Francesc; Rotger, Victor (Cambridge University Press, 2012-07)
    For an abelian surface A over a number field k, we study the limiting distribution of the normalized Euler factors of the L-function of A. This distribution is expected to correspond to taking characteristic polynomials ...
  • Saturation of the Internal Tides and Induced Mixing in the Abyssal Ocean 
    Bühler, Oliver; Muller, Caroline (American Meteorological Society, 2009-01)
    As part of an ongoing effort to develop a parameterization of wave-induced abyssal mixing, the authors derive an heuristic model for nonlinear wave breaking and energy dissipation associated with internal tides. Then the ...
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