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1. |
Record Nr. |
UNINA9910694657303321 |
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Autore |
Hite Randolph C |
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Titolo |
Information technology [[electronic resource] ] : FBI is building management capabilities essential to successful system deployments, but challenges remain : testimony before the Subcommittee on Science, State, Justice, Commerce, and Related Agencies, House of Representatives / / statement of Randolph C. Hite |
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Pubbl/distr/stampa |
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[Washington, D.C.] : , : U.S. Government Accountability Office, , [2005] |
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Descrizione fisica |
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28 pages : digital, PDF file |
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Collana |
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Testimony ; ; GAO-05-1014 T |
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Soggetti |
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Information technology - Government policy - United States |
Information storage and retrieval systems - United States - Government policy - United States |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Title from title screen (viewed on Nov. 16, 2005). |
"For release ... September 14, 2005." |
Paper version available from: U.S. Government Accountability Office, 441 G St., NW, Rm. LM, Washington, D.C. 20548. |
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Nota di bibliografia |
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Includes bibliographical references. |
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2. |
Record Nr. |
UNINA9910808943903321 |
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Autore |
Sira-ramírez Herbett J. |
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Titolo |
Algebraic identification and estimation methods in feedback control systems / / Hebertt Sira-ramírez |
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Pubbl/distr/stampa |
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Chichester, West Sussex, United Kingdom : , : John Wiley & Sons, , 2014 |
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©2014 |
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ISBN |
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1-118-73058-5 |
1-118-73059-3 |
1-118-73057-7 |
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Descrizione fisica |
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1 online resource (391 p.) |
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Collana |
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Wiley Series in Dynamics and Control of Electromechanical Systems |
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Classificazione |
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Disciplina |
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Soggetti |
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Feedback control systems - Mathematical models |
Control theory - Mathematics |
Differential algebra |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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Cover; Title Page; Copyright; Contents; Series Preface; Preface; Chapter 1 Introduction; 1.1 Feedback Control of Dynamic Systems; 1.1.1 Feedback; 1.1.2 Why Do We Need Feedback?; 1.2 The Parameter Identification Problem; 1.2.1 Identifying a System; 1.3 A Brief Survey on Parameter Identification; 1.4 The State Estimation Problem; 1.4.1 Observers; 1.4.2 Reconstructing the State via Time Derivative Estimation; 1.5 Algebraic Methods in Control Theory: Differences from Existing Methodologies; 1.6 Outline of the Book; References; Chapter 2 Algebraic Parameter Identification in Linear Systems |
2.1 Introduction 2.1.1 The Parameter-Estimation Problem in Linear Systems; 2.2 Introductory Examples; 2.2.1 Dragging an Unknown Mass in Open Loop; 2.2.2 A Perturbed First-Order System; 2.2.3 The Visual Servoing Problem; 2.2.4 Balancing of the Plane Rotor; 2.2.5 On the Control of the Linear Motor; 2.2.6 Double-Bridge Buck Converter; 2.2.7 Closed-Loop Behavior; 2.2.8 Control of an unknown variable gain motor; 2.2.9 Identifying Classical Controller Parameters; 2.3 A Case Study Introducing a ""Sentinel'' Criterion; 2.3.1 A Suspension System Model; 2.4 Remarks; References |
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Chapter 3 Algebraic Parameter Identification in Nonlinear Systems 3.1 Introduction; 3.2 Algebraic Parameter Identification for Nonlinear Systems; 3.2.1 Controlling an Uncertain Pendulum; 3.2.2 A Block-Driving Problem; 3.2.3 The Fully Actuated Rigid Body; 3.2.4 Parameter Identification Under Sliding Motions; 3.2.5 Control of an Uncertain Inverted Pendulum Driven by a DC Motor; 3.2.6 Identification and Control of a Convey Crane; 3.2.7 Identification of a Magnetic Levitation System; 3.3 An Alternative Construction of the System of Linear Equations; 3.3.1 Genesio-Tesi Chaotic System |
3.3.2 The Ueda Oscillator 3.3.3 Identification and Control of an Uncertain Brushless DC Motor; 3.3.4 Parameter Identification and Self-tuned Control for the Inertia Wheel Pendulum; 3.3.5 Algebraic Parameter Identification for Induction Motors; 3.3.6 A Criterion to Determine the Estimator Convergence: The Error Index; 3.4 Remarks; References; Chapter 4 Algebraic Parameter Identification in Discrete-Time Systems; 4.1 Introduction; 4.2 Algebraic Parameter Identification in Discrete-Time Systems; 4.2.1 Main Purpose of the Chapter; 4.2.2 Problem Formulation and Assumptions |
4.2.3 An Introductory Example 4.2.4 Samuelson's Model of the National Economy; 4.2.5 Heating of a Slab from Two Boundary Points; 4.2.6 An Exact Backward Shift Reconstructor; 4.3 A Nonlinear Filtering Scheme; 4.3.1 Hénon System; 4.3.2 A Hard Disk Drive; 4.3.3 The Visual Servo Tracking Problem; 4.3.4 A Shape Control Problem in a Rolling Mill; 4.3.5 Algebraic Frequency Identification of a Sinusoidal Signal by Means of Exact Discretization; 4.4 Algebraic Identification in Fast-Sampled Linear Systems; 4.4.1 The Delta-Operator Approach: A Theoretical Framework; 4.4.2 Delta-Transform Properties |
4.4.3 A DC Motor Example |
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Sommario/riassunto |
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"Presents a model-based algebraic approach to on-line parameter and state estimation in uncertain dynamic feedback control systemsAlgebraic Identification and Estimation Methods in Feedback Control Systems presents the model-based algebraic approach to on-line parameter and state estimation in uncertain dynamic feedback control systems. This approach evades the mathematical intricacies of the traditional stochastic approach, proposing a direct model-based scheme with several, easy to implement, computational advantages. This book contains many illustrative, tutorial style, developed examples of the recently introduced algebraic approach for parameter and state estimation in a variety of physical systems of continuous, and discrete, nature. The developments include some laboratory experimental results in several areas related to mechatronics systems. The reader, with an engineering level mathematical background and through the many expository examples, will be able to master the use and understand the consequences of the highly theoretical differential algebraic viewpoint in control systems theory"-- |
"Algebraic Identification and Estimation Methods in Feedback Control Systems presents the model-based algebraic approach to on-line parameter and state estimation in uncertain dynamic feedback control systems"-- |
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3. |
Record Nr. |
UNINA9910810025503321 |
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Autore |
Racz Imogen |
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Titolo |
Art and the home : comfort, alienation and the everyday / / Imogen Racz |
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Pubbl/distr/stampa |
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London, England : , : I.B. Tauris, , 2019 |
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[London, England] : , : Bloomsbury Publishing, , 2019 |
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ISBN |
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0-85773-868-2 |
1-78076-201-1 |
0-7556-9384-1 |
1-5013-5985-1 |
1-78673-998-4 |
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Edizione |
[First edition.] |
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Descrizione fisica |
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1 online resource (x, 244 pages) : illustrations |
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Collana |
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The international library of modern and contemporary art ; ; 5 |
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Disciplina |
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Soggetti |
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Home in art |
Art & design styles: from c 1960 |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Nota di bibliografia |
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Includes bibliographical references (pages 217-234) and index. |
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Nota di contenuto |
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Enclosure -- Doors and windows -- Female space -- Alienation -- The unmade house -- Withdrawal -- Objects, sentiment and memory. |
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Sommario/riassunto |
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"Our homes contain us, but they are also within us. They can represent places to be ourselves, to recollect childhood memories, or to withdraw into adult spaces of intimacy; they can be sites for developing rituals, family relationships, and acting out cultural expectations. Like the personal, social, and cultural elements out of which they are constructed, homes can be not only comforting, but threatening too. The home is a rich theme running through post-war western art, and it continues to engage contemporary artists today - yet it has been the subject of relatively little critical writing. Art and the Home: Comfort, Alienation and the Everyday is the first single-authored, up-to-date book on the subject. Imogen Racz provides a theme-led discussion about how the physical experience of the dwelling space and the psychological complexities of the domestic are manifested in art, focusing mainly on sculpture, installation and object-based practice; discussing the work and ideas of artists as diverse as Louise Bourgeois, |
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Gordon Matta-Clark, George Segal and Cornelia Parker within their artistic and cultural contexts."--Wheelers.co.nz. |
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