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Examining the changing health care seeking behavior in the era of health sector reforms in India:evidences from the National Sample Surveys 2004&2014

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Global Health Research and Policy 2017年第1期2卷 301-309页

作者： Arnab Jana Rounaq Basu Centre for Urban Science&Engineering Indian Institute of Technology BombayMumbaiMaharashtra 400076India Intelligent Transportation Systems Lab Department of Civil&Environmental EngineeringMassachusetts Institute of TechnologyCambridgeMA 02139USA

Background:Health policy formulations in India have witnessed a shift from a reactive approach to a more proactive approach over the last *** is therefore important to understand the effectiveness of recent national health policies(such as the National Rural Health Mission and the National Urban Health Mission)in addressing the varied needs of the heterogeneous population of ***:We use datasets from the National Sample Surveys carried out in 2004 and 2014 to understand the change in the health seeking behavior as a result of these *** choice of health care facilities and the associated expenditures are compared through descriptive analyses.A multinomial logistic regression is used to identify the significant parameters which contribute towards the share of health care providers in *** health status of two economically disparate indian states(Bihar and Kerala)are also compared through specific metrics of ***:It is seen that due to increased availability of facilities in close proximity,both rural and urban residents prefer to avail of those facilities which will result in minimization of transportation *** effectiveness of national health policies is found to vary on a regional *** and health status have a strong correlation,thereby reinforcing that Bihar still lags far behind Kerala in terms of access to equitable health ***:Therefore,a hierarchical system,incorporating medical pluralism and tailor-made policies targeted at diverse health care demands,needs to be put in place to achieve Goal 3 of the Sustainable Development Goals as decreed by the United Nations,i.e.,“health for all”.

关键词： National health policies Health care seeking behavior Regional health status variation NSS dataset Health care in India

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Dropout feedback parametrized policies for stochastic predictive controller

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IFAC-PapersOnLine 2016年第18期49卷 59-64页

作者： Mishra, Prabhat K. Quevedo, Daniel E. Chatterjee, Debasish Systems & Control Engineering Indian Institute of Technology Bombay India Paderborn University Germany

This article presents a novel control policy class for the networked control of linear dynamical systems with bounded inputs. The control channel is assumed to have i.i.d. Bernoulli packet dropouts. Our proposed class of policies is parametrized relative to the past dropouts. We show how to augment the underlying optimization problem with a constant negative drift constraint in order to ensure mean-square boundedness of the closed-loop states. The resulting convex quadratic program can be solved periodically online. The states of the closed loop plant under the receding horizon implementation of the proposed class of policies are mean square bounded for any positive bound on the control. © 2016

关键词： Networked control systems Dynamical systems Feedback Linear control systems Mobile telecommunication systems Model predictive control Quadratic programming Stochastic control systems Stochastic models Stochastic systems Erasure channels Linear dynamical systems Multiplicative noise Networked systems Optimization problems Predictive controller Quadratic programs Unreliable channels

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Geometric controllability of The Purcell's Swimmer and its Symmetrized Cousin

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IFAC-PapersOnLine 2016年第18期49卷 988-993页

作者： Kadam, Sudin Banavar, Ravi N. Systems and Control Engineering Department Indian Institute of Technology Bombay Mumbai400076 India

We analyse weak and strong controllability notions for the locomotion of the 3-link Purcell's swimmer, the simplest possible swimmer at low Reynolds number, from a geometric framework. After revisiting a purely kinematic form of the equations, we apply an extension of Chow's theorem to analyze controllability in the strong and weak sense. Further, the connection form for the symmetric version of the Purcell's swimmer is derived, based on which the controllability analysis utilizing the Abelian nature of the structure group is presented. The novelty in our approach is the usage of geometry and the principal fiber bundle structure of the configuration manifold of the system to arrive at strong and weak controllability results. © 2016

关键词： controllability Biped locomotion Geometry Group theory Reynolds number Configuration manifold controllability analysis Fiber bundles Geometric framework Low Reynolds number Purcell's swimmer Strong controllability Weak controllability

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Posture stabilization of unicycle mobile robot using finite time control techniques

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IFAC-PapersOnLine 2016年第1期49卷 379-384页

作者： Thomas, Maria Bandyopadhyay, Bijnan Vachhani, Leena Systems and Control Engineering Indian Institute of Technology Bombay Mumbai400 076 India

In this paper, a finite time control strategy is proposed for the posture stabilization of a unicycle type mobile robot. The underlying bilinear structure of the chained system of the unicycle is exploited to develop the control strategy which involves switching between two continuous finite time controllers. The chained system is analysed as two subsystems. A homogeneity based finite time controller is used to stabilize the first subsystem in finite time and thereafter the Super Twisting Algorithm is employed for the finite time stabilization of the second subsystem. Simulations are performed for the proposed scheme and the mathematical results are validated. © 2016, IFAC (International Federation of Automatic control) Hosting by Elsevier Ltd. All rights reserved.

关键词： controllers Mobile robots Stabilization Vehicles Finite time stabilization Finite time control Finite time controllers Homogeneity Posture stabilization Super twisting algorithm Unicycle Unicycle type mobile robots

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An induction motor drive scheme generating twenty-four sided voltage space vector structure with linear modulation range near to base speed 19

An induction motor drive scheme generating twenty-four sided...

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19th European Conference on Power Electronics and Applications, EPE 2017 ECCE Europe

作者： Krishna Raj, R. Gopakumar, K. Boby, Mathews Malinowski, Mariusz Jasinski, Marek Department of Electronic Systems Engineering Indian Institute of Science Bangalore India Institute of Control and Industrial Electronics Warsaw University of Technology Warsaw Poland

ISBN: (纸本)9789075815276

In this paper, a drive scheme generating 24-sided polygonal voltage space vector structure using an inverter topology with single DC source is proposed. A 24-sided structure eliminates dominant low-order phase voltage harmonics including and up to seventeenth and nineteenth orders throughout the speed range including step operation. The power circuit has a two-level inverter and two low voltage cascaded H-bridge cells fed with capacitors. The linear modulation range is extended to 99.42% of the base speed with such a polygonal structure. A reduced PWM switching sequence resulting in minimum pole voltage transitions for the two-level inverter and shifting relatively higher frequency operation to low voltage H-Bridge inverters feature the drive scheme for controlling losses. © assigned jointly to the European Power Electronics and Drives Association & the institute of Electrical and Electronics Engineers (IEEE).

关键词： Pulse width modulation

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Sparse and constrained stochastic predictive control fornetworked systems

arXiv

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arXiv 2017年

作者： Mishra, Prabhat K. Chatterjee, Debasish Quevedo, Daniel E. Systems and Control Engineering Indian Institute of Technology Bombay India Paderborn University Germany

This article presents a novel class of control policies for networked control of Lyapunov-stable linear systems with bounded inputs. The control channel is assumed to have i.i.d. Bernoulli packet dropouts and the system is assumed to be affected by additive stochastic noise. Our proposed class of policies is affine in the past dropouts and saturated values of the past disturbances. We further consider a regularization term in a quadratic performance index to promote sparsity in control. We demonstrate how to augment the underlying optimization problem with a constant negative drift constraint to ensure mean-square boundedness of the closed-loop states, yielding a convex quadratic program to be solved periodically online. The states of the closed-loop plant under the receding horizon implementation of the proposed class of policies are mean square bounded for any positive bound on the control and any non-zero probability of successful transmission. Copyright © 2017, The Authors. All rights reserved.

关键词： Stochastic systems

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Stabilization of discrete-time switched linear systems: Lyapunov-Metzler inequalities versus S-procedure characterizations

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IFAC-PapersOnLine 2017年第1期50卷 3412-3417页

作者： Kundu A. Daafouz J. Heemels W.P.M.H. Robert Bosch Centre for Cyber-Physical Systems Indian Institute of Science Bangalore India Centre for Research in Automatic Control of Nancy University of Lorraine France Control Systems Technology Group Department of Mechanical Engineering Eindhoven University of Technology Netherlands

In this paper we study connections between Lyapunov-Metzler inequalities and S-procedure characterizations in the context of stabilizing discrete-time switched linear systems using min-switching strategies. We propose two generalized versions of S-procedure characterization along the lines of the generalized versions of Lyapunov-Metzler inequalities recently proposed in the literature. It is shown that the existence of a solution to the generalized version(s) of Lyapunov-Metzler inequalities is equivalent to the existence of a solution to the generalized version(s) of S-procedure characterization with a restricted choice of the scalar quantities involved in the latter. This recovers some of our earlier works on the classical Lyapunov-Metzler inequalities as a special case. We also highlight and discuss an open question of whether the generalized versions of S-procedure characterization are strictly less conservative than the generalized versions of Lyapunov-Metzler inequalities, which in turn are equivalent to periodic stabilizability as was recently shown. © 2017

关键词： Discrete-time switched linear systems Lyapunov-Metzler inequalities matrix inequalities min-switching strategy S-procedure characterizations stabilizability

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Timing the decision support for real-world many-objective optimization problems 1

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9th International Conference on Evolutionary Multi-Criterion Optimization, EMO 2017

作者： Duro, João A. Saxena, Dhish Kumar Automatic Control and Systems Engineering Department The University of Sheffield Sheffield United Kingdom Department of Mechanical and Industrial Engineering Indian Institute of Technology Roorkee Roorkee India

ISBN: (数字)9783319541570

ISBN: (纸本)9783319541563

Lately, there is growing emphasis on improving the scalability of multi-objective evolutionary algorithms (MOEAs) so that manyobjective problems (characterized by more than three objectives) can be effectively dealt with. Alternatively, the utility of integrating decision maker’s (DM’s) preferences into the optimization process so as to target some most preferred solutions by the DM (instead of the whole Paretooptimal front), is also being increasingly recognized. The authors here, have earlier argued that despite the promises in the latter approach, its practical utility may be impaired by the lack of—objectivity, repeatability, consistency, and coherence in the DM’s preferences. To counter this, the authors have also earlier proposed a machine learning based decision support framework to reveal the preference-structure of objectives. Notably, the revealed preference-structure may be sensitive to the timing of application of this framework along an MOEA run. In this paper the authors counter this limitation, by integrating a termination criterion with an MOEA run, towards determining the appropriate timing for application of the machine learning based framework. Results based on three real-world many-objective problems considered in this paper, highlight the utility of the proposed integration towards an objective, repeatable, consistent, and coherent decision support for many-objective problems. © Springer International Publishing AG 2017.

关键词： Timing circuits

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Efficient constrained sensor placement for observability of linear systems

arXiv

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arXiv 2017年

作者： Dey, Priyanka Balachandran, Niranjan Chatterjee, Debasish Systems & Control Engineering Indian Institute of Technology Bombay Powai Mumbai400076 India Department of Mathematics Indian Institute of Technology Bombay Powai Mumbai400076 India

This article studies two problems related to observability and efficient constrained sensor placement in linear time-invariant discrete-time systems with partial state observations: (i) We impose the condition that both the set of outputs and the state that each output can measure are pre-specified. We establish that for any fixed k > 2, the problem of placing the minimum number of sensors/outputs required to ensure that the structural observability index is at most k, is NP-complete. Conversely, we identify a subclass of systems whose structures are directed trees with self-loops at every state vertex, for which the problem can be solved in linear time. (ii) Assuming that the set of states that each given output can measure is given, we prove that the problem of selecting a pre-assigned number of sensors in order to maximize the number of states of the system that are structurally observable is also NP-hard. As an application, we identify suitable conditions on the system structure under which there exists an efficient greedy strategy, which we provide, to obtain a (1 − 1e)-approximate solution. An illustration of the techniques developed for this problem is given on the benchmark IEEE 118-bus power network containing roughly 400 states in its linearized model. Copyright © 2017, The Authors. All rights reserved.

关键词： Observability

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GWTC-3: Compact Binary Coalescences Observed by LIGO and Virgo during the Second Part of the Third Observing Run

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Physical Review X 2023年第4期13卷 041039-041039页

作者： R. Abbott T. D. Abbott F. Acernese K. Ackley C. Adams N. Adhikari R. X. Adhikari V. B. Adya C. Affeldt D. Agarwal M. Agathos K. Agatsuma N. Aggarwal O. D. Aguiar L. Aiello A. Ain P. Ajith S. Akcay T. Akutsu S. Albanesi A. Allocca P. A. Altin A. Amato C. Anand S. Anand A. Ananyeva S. B. Anderson W. G. Anderson M. Ando T. Andrade N. Andres T. Andrić S. V. Angelova S. Ansoldi J. M. Antelis S. Antier S. Appert Koji Arai Koya Arai Y. Arai S. Araki A. Araya M. C. Araya J. S. Areeda M. Arène N. Aritomi N. Arnaud M. Arogeti S. M. Aronson K. G. Arun H. Asada Y. Asali G. Ashton Y. Aso M. Assiduo S. M. Aston P. Astone F. Aubin C. Austin S. Babak F. Badaracco M. K. M. Bader C. Badger S. Bae Y. Bae A. M. Baer S. Bagnasco Y. Bai L. Baiotti J. Baird R. Bajpai M. Ball G. Ballardin S. W. Ballmer A. Balsamo G. Baltus S. Banagiri D. Bankar J. C. Barayoga C. Barbieri B. C. Barish D. Barker P. Barneo F. Barone B. Barr L. Barsotti M. Barsuglia D. Barta J. Bartlett M. A. Barton I. Bartos R. Bassiri A. Basti M. Bawaj J. C. Bayley A. C. Baylor M. Bazzan B. Bécsy V. M. Bedakihale M. Bejger I. Belahcene V. Benedetto D. Beniwal T. F. Bennett J. D. Bentley M. BenYaala F. Bergamin B. K. Berger S. Bernuzzi C. P. L. Berry D. Bersanetti A. Bertolini J. Betzwieser D. Beveridge R. Bhandare U. Bhardwaj D. Bhattacharjee S. Bhaumik I. A. Bilenko G. Billingsley S. Bini R. Birney O. Birnholtz S. Biscans M. Bischi S. Biscoveanu A. Bisht B. Biswas M. Bitossi M.-A. Bizouard J. K. Blackburn C. D. Blair D. G. Blair R. M. Blair F. Bobba N. Bode M. Boer G. Bogaert M. Boldrini L. D. Bonavena F. Bondu E. Bonilla R. Bonnand P. Booker B. A. Boom R. Bork V. Boschi N. Bose S. Bose V. Bossilkov V. Boudart Y. Bouffanais A. Bozzi C. Bradaschia P. R. Brady A. Bramley A. Branch M. Branchesi J. Brandt J. E. Brau M. Breschi T. Briant J. H. Briggs A. Brillet M. Brinkmann P. Brockill A. F. Brooks J. Brooks D. D. Brown S. Brunett G. Bruno R. Bruntz J. Bryant T. Bulik H. J. Bulten A. Buonanno R. Buscicchio D. Buskulic C. Buy R. L. Byer G. S. Cabourn Davies L. Cadonati G. Cagn LIGO Laboratory California Institute of Technology Pasadena California 91125 USA Louisiana State University Baton Rouge Louisiana 70803 USA Dipartimento di Farmacia Università di Salerno I-84084 Fisciano Salerno Italy INFN Sezione di Napoli Complesso Universitario di Monte S. Angelo I-80126 Napoli Italy OzGrav School of Physics & Astronomy Monash University Clayton 3800 Victoria Australia LIGO Livingston Observatory Livingston Louisiana 70754 USA University of Wisconsin-Milwaukee Milwaukee Wisconsin 53201 USA OzGrav Australian National University Canberra Australian Capital Territory 0200 Australia Max Planck Institute for Gravitational Physics (Albert Einstein Institute) D-30167 Hannover Germany Leibniz Universität Hannover D-30167 Hannover Germany Inter-University Centre for Astronomy and Astrophysics Pune 411007 India University of Cambridge Cambridge CB2 1TN United Kingdom Theoretisch-Physikalisches Institut Friedrich-Schiller-Universität Jena D-07743 Jena Germany University of Birmingham Birmingham B15 2TT United Kingdom Center for Interdisciplinary Exploration and Research in Astrophysics (CIERA) Northwestern University Evanston Illinois 60208 USA Instituto Nacional de Pesquisas Espaciais 12227-010 São José dos Campos São Paulo Brazil Gravity Exploration Institute Cardiff University Cardiff CF24 3AA United Kingdom INFN Sezione di Pisa I-56127 Pisa Italy International Centre for Theoretical Sciences Tata Institute of Fundamental Research Bengaluru 560089 India University College Dublin Dublin 4 Ireland Gravitational Wave Science Project National Astronomical Observatory of Japan (NAOJ) Mitaka City Tokyo 181-8588 Japan Advanced Technology Center National Astronomical Observatory of Japan (NAOJ) Mitaka City Tokyo 181-8588 Japan INFN Sezione di Torino I-10125 Torino Italy Università di Napoli “Federico II” Complesso Universitario di Monte S. Angelo I-80126 Napoli Italy Université de Lyon Université Claude Bernard Lyon 1 CNRS Institut L

The third Gravitational-Wave Transient Catalog (GWTC-3) describes signals detected with Advanced LIGO and Advanced Virgo up to the end of their third observing run. Updating the previous GWTC-2.1, we present candidate gravitational waves from compact binary coalescences during the second half of the third observing run (O3b) between 1 November 2019, 15∶00 Coordinated Universal Time (UTC) and 27 March 2020, 17∶00 UTC. There are 35 compact binary coalescence candidates identified by at least one of our search algorithms with a probability of astrophysical origin pastro>0.5. Of these, 18 were previously reported as low-latency public alerts, and 17 are reported here for the first time. Based upon estimates for the component masses, our O3b candidates with pastro>0.5 are consistent with gravitational-wave signals from binary black holes or neutron-star–black-hole binaries, and we identify none from binary neutron stars. However, from the gravitational-wave data alone, we are not able to measure matter effects that distinguish whether the binary components are neutron stars or black holes. The range of inferred component masses is similar to that found with previous catalogs, but the O3b candidates include the first confident observations of neutron-star–black-hole binaries. Including the 35 candidates from O3b in addition to those from GWTC-2.1, GWTC-3 contains 90 candidates found by our analysis with pastro>0.5 across the first three observing runs. These observations of compact binary coalescences present an unprecedented view of the properties of black holes and neutron stars.

关键词： Gravitational waves

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