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Publisher: Oxford University Press   (Total: 370 journals)

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Showing 1 - 200 of 370 Journals sorted alphabetically
Acta Biochimica et Biophysica Sinica     Hybrid Journal   (Followers: 6, SJR: 0.881, h-index: 38)
Adaptation     Hybrid Journal   (Followers: 8, SJR: 0.111, h-index: 4)
Aesthetic Surgery J.     Hybrid Journal   (Followers: 6, SJR: 1.538, h-index: 35)
African Affairs     Hybrid Journal   (Followers: 60, SJR: 1.512, h-index: 46)
Age and Ageing     Hybrid Journal   (Followers: 84, SJR: 1.611, h-index: 107)
Alcohol and Alcoholism     Hybrid Journal   (Followers: 15, SJR: 0.935, h-index: 80)
American Entomologist     Full-text available via subscription   (Followers: 6)
American Historical Review     Hybrid Journal   (Followers: 129, SJR: 0.652, h-index: 43)
American J. of Agricultural Economics     Hybrid Journal   (Followers: 41, SJR: 1.441, h-index: 77)
American J. of Epidemiology     Hybrid Journal   (Followers: 159, SJR: 3.047, h-index: 201)
American J. of Hypertension     Hybrid Journal   (Followers: 23, SJR: 1.397, h-index: 111)
American J. of Jurisprudence     Hybrid Journal   (Followers: 16)
American J. of Legal History     Full-text available via subscription   (Followers: 5, SJR: 0.151, h-index: 7)
American Law and Economics Review     Hybrid Journal   (Followers: 25, SJR: 0.824, h-index: 23)
American Literary History     Hybrid Journal   (Followers: 12, SJR: 0.185, h-index: 22)
Analysis     Hybrid Journal   (Followers: 24)
Annals of Botany     Hybrid Journal   (Followers: 35, SJR: 1.912, h-index: 124)
Annals of Occupational Hygiene     Hybrid Journal   (Followers: 26, SJR: 0.837, h-index: 57)
Annals of Oncology     Hybrid Journal   (Followers: 47, SJR: 4.362, h-index: 173)
Annals of the Entomological Society of America     Full-text available via subscription   (Followers: 8, SJR: 0.642, h-index: 53)
Annals of Work Exposures and Health     Hybrid Journal  
AoB Plants     Open Access   (Followers: 3, SJR: 0.78, h-index: 10)
Applied Economic Perspectives and Policy     Hybrid Journal   (Followers: 19, SJR: 0.884, h-index: 31)
Applied Linguistics     Hybrid Journal   (Followers: 51, SJR: 1.749, h-index: 63)
Applied Mathematics Research eXpress     Hybrid Journal   (Followers: 1, SJR: 0.779, h-index: 11)
Arbitration Intl.     Full-text available via subscription   (Followers: 20)
Arbitration Law Reports and Review     Hybrid Journal   (Followers: 13)
Archives of Clinical Neuropsychology     Hybrid Journal   (Followers: 26, SJR: 0.96, h-index: 71)
Aristotelian Society Supplementary Volume     Hybrid Journal   (Followers: 2, SJR: 0.102, h-index: 20)
Arthropod Management Tests     Hybrid Journal   (Followers: 2)
Astronomy & Geophysics     Hybrid Journal   (Followers: 47, SJR: 0.144, h-index: 15)
Behavioral Ecology     Hybrid Journal   (Followers: 48, SJR: 1.698, h-index: 92)
Bioinformatics     Hybrid Journal   (Followers: 246, SJR: 4.643, h-index: 271)
Biology Methods and Protocols     Hybrid Journal  
Biology of Reproduction     Full-text available via subscription   (Followers: 9, SJR: 1.646, h-index: 149)
Biometrika     Hybrid Journal   (Followers: 19, SJR: 2.801, h-index: 90)
BioScience     Hybrid Journal   (Followers: 28, SJR: 2.374, h-index: 154)
Bioscience Horizons : The National Undergraduate Research J.     Open Access   (Followers: 1, SJR: 0.213, h-index: 9)
Biostatistics     Hybrid Journal   (Followers: 16, SJR: 1.955, h-index: 55)
BJA : British J. of Anaesthesia     Hybrid Journal   (Followers: 142, SJR: 2.314, h-index: 133)
BJA Education     Hybrid Journal   (Followers: 66, SJR: 0.272, h-index: 20)
Brain     Hybrid Journal   (Followers: 60, SJR: 6.097, h-index: 264)
Briefings in Bioinformatics     Hybrid Journal   (Followers: 45, SJR: 4.086, h-index: 73)
Briefings in Functional Genomics     Hybrid Journal   (Followers: 4, SJR: 1.771, h-index: 50)
British J. for the Philosophy of Science     Hybrid Journal   (Followers: 34, SJR: 1.267, h-index: 38)
British J. of Aesthetics     Hybrid Journal   (Followers: 25, SJR: 0.217, h-index: 18)
British J. of Criminology     Hybrid Journal   (Followers: 524, SJR: 1.373, h-index: 62)
British J. of Social Work     Hybrid Journal   (Followers: 82, SJR: 0.771, h-index: 53)
British Medical Bulletin     Hybrid Journal   (Followers: 7, SJR: 1.391, h-index: 84)
British Yearbook of Intl. Law     Hybrid Journal   (Followers: 27)
Bulletin of the London Mathematical Society     Hybrid Journal   (Followers: 3, SJR: 1.474, h-index: 31)
Cambridge J. of Economics     Hybrid Journal   (Followers: 58, SJR: 0.957, h-index: 59)
Cambridge J. of Regions, Economy and Society     Hybrid Journal   (Followers: 11, SJR: 1.067, h-index: 22)
Cambridge Quarterly     Hybrid Journal   (Followers: 11, SJR: 0.1, h-index: 7)
Capital Markets Law J.     Hybrid Journal  
Carcinogenesis     Hybrid Journal   (Followers: 2, SJR: 2.439, h-index: 167)
Cardiovascular Research     Hybrid Journal   (Followers: 11, SJR: 2.897, h-index: 175)
Cerebral Cortex     Hybrid Journal   (Followers: 40, SJR: 4.827, h-index: 192)
CESifo Economic Studies     Hybrid Journal   (Followers: 16, SJR: 0.501, h-index: 19)
Chemical Senses     Hybrid Journal   (Followers: 1, SJR: 1.436, h-index: 76)
Children and Schools     Hybrid Journal   (Followers: 6, SJR: 0.211, h-index: 18)
Chinese J. of Comparative Law     Hybrid Journal   (Followers: 3)
Chinese J. of Intl. Law     Hybrid Journal   (Followers: 21, SJR: 0.737, h-index: 11)
Chinese J. of Intl. Politics     Hybrid Journal   (Followers: 8, SJR: 1.238, h-index: 15)
Christian Bioethics: Non-Ecumenical Studies in Medical Morality     Hybrid Journal   (Followers: 11, SJR: 0.191, h-index: 8)
Classical Receptions J.     Hybrid Journal   (Followers: 19, SJR: 0.1, h-index: 3)
Clinical Infectious Diseases     Hybrid Journal   (Followers: 58, SJR: 4.742, h-index: 261)
Clinical Kidney J.     Open Access   (Followers: 4, SJR: 0.338, h-index: 19)
Community Development J.     Hybrid Journal   (Followers: 24, SJR: 0.47, h-index: 28)
Computer J.     Hybrid Journal   (Followers: 7, SJR: 0.371, h-index: 47)
Conservation Physiology     Open Access   (Followers: 2)
Contemporary Women's Writing     Hybrid Journal   (Followers: 11, SJR: 0.111, h-index: 3)
Contributions to Political Economy     Hybrid Journal   (Followers: 6, SJR: 0.313, h-index: 10)
Critical Values     Full-text available via subscription  
Current Legal Problems     Hybrid Journal   (Followers: 26)
Current Zoology     Full-text available via subscription   (SJR: 0.999, h-index: 20)
Database : The J. of Biological Databases and Curation     Open Access   (Followers: 11, SJR: 1.068, h-index: 24)
Digital Scholarship in the Humanities     Hybrid Journal   (Followers: 12)
Diplomatic History     Hybrid Journal   (Followers: 18, SJR: 0.296, h-index: 22)
DNA Research     Open Access   (Followers: 4, SJR: 2.42, h-index: 77)
Dynamics and Statistics of the Climate System     Open Access   (Followers: 3)
Early Music     Hybrid Journal   (Followers: 14, SJR: 0.124, h-index: 11)
Economic Policy     Hybrid Journal   (Followers: 59, SJR: 2.052, h-index: 52)
ELT J.     Hybrid Journal   (Followers: 25, SJR: 1.26, h-index: 23)
English Historical Review     Hybrid Journal   (Followers: 48, SJR: 0.311, h-index: 10)
English: J. of the English Association     Hybrid Journal   (Followers: 13, SJR: 0.144, h-index: 3)
Environmental Entomology     Full-text available via subscription   (Followers: 11, SJR: 0.791, h-index: 66)
Environmental Epigenetics     Open Access   (Followers: 1)
Environmental History     Hybrid Journal   (Followers: 26, SJR: 0.197, h-index: 25)
EP-Europace     Hybrid Journal   (Followers: 2, SJR: 2.201, h-index: 71)
Epidemiologic Reviews     Hybrid Journal   (Followers: 10, SJR: 3.917, h-index: 81)
ESHRE Monographs     Hybrid Journal  
Essays in Criticism     Hybrid Journal   (Followers: 16, SJR: 0.1, h-index: 6)
European Heart J.     Hybrid Journal   (Followers: 49, SJR: 6.997, h-index: 227)
European Heart J. - Cardiovascular Imaging     Hybrid Journal   (Followers: 9, SJR: 2.044, h-index: 58)
European Heart J. - Cardiovascular Pharmacotherapy     Full-text available via subscription   (Followers: 1)
European Heart J. - Quality of Care and Clinical Outcomes     Hybrid Journal  
European Heart J. Supplements     Hybrid Journal   (Followers: 8, SJR: 0.152, h-index: 31)
European J. of Cardio-Thoracic Surgery     Hybrid Journal   (Followers: 8, SJR: 1.568, h-index: 104)
European J. of Intl. Law     Hybrid Journal   (Followers: 152, SJR: 0.722, h-index: 38)
European J. of Orthodontics     Hybrid Journal   (Followers: 4, SJR: 1.09, h-index: 60)
European J. of Public Health     Hybrid Journal   (Followers: 22, SJR: 1.284, h-index: 64)
European Review of Agricultural Economics     Hybrid Journal   (Followers: 12, SJR: 1.549, h-index: 42)
European Review of Economic History     Hybrid Journal   (Followers: 28, SJR: 0.628, h-index: 24)
European Sociological Review     Hybrid Journal   (Followers: 40, SJR: 2.061, h-index: 53)
Evolution, Medicine, and Public Health     Open Access   (Followers: 11)
Family Practice     Hybrid Journal   (Followers: 11, SJR: 1.048, h-index: 77)
Fems Microbiology Ecology     Hybrid Journal   (Followers: 8, SJR: 1.687, h-index: 115)
Fems Microbiology Letters     Hybrid Journal   (Followers: 20, SJR: 1.126, h-index: 118)
Fems Microbiology Reviews     Hybrid Journal   (Followers: 25, SJR: 7.587, h-index: 150)
Fems Yeast Research     Hybrid Journal   (Followers: 13, SJR: 1.213, h-index: 66)
Foreign Policy Analysis     Hybrid Journal   (Followers: 21, SJR: 0.859, h-index: 10)
Forestry: An Intl. J. of Forest Research     Hybrid Journal   (Followers: 16, SJR: 0.903, h-index: 44)
Forum for Modern Language Studies     Hybrid Journal   (Followers: 6, SJR: 0.108, h-index: 6)
French History     Hybrid Journal   (Followers: 31, SJR: 0.123, h-index: 10)
French Studies     Hybrid Journal   (Followers: 19, SJR: 0.119, h-index: 7)
French Studies Bulletin     Hybrid Journal   (Followers: 10, SJR: 0.102, h-index: 3)
Gastroenterology Report     Open Access   (Followers: 2)
Genome Biology and Evolution     Open Access   (Followers: 9, SJR: 3.22, h-index: 39)
Geophysical J. Intl.     Hybrid Journal   (Followers: 34, SJR: 1.839, h-index: 119)
German History     Hybrid Journal   (Followers: 25, SJR: 0.437, h-index: 13)
GigaScience     Open Access   (Followers: 3)
Global Summitry     Hybrid Journal  
Glycobiology     Hybrid Journal   (Followers: 14, SJR: 1.692, h-index: 101)
Health and Social Work     Hybrid Journal   (Followers: 48, SJR: 0.505, h-index: 40)
Health Education Research     Hybrid Journal   (Followers: 12, SJR: 0.814, h-index: 80)
Health Policy and Planning     Hybrid Journal   (Followers: 19, SJR: 1.628, h-index: 66)
Health Promotion Intl.     Hybrid Journal   (Followers: 21, SJR: 0.664, h-index: 60)
History Workshop J.     Hybrid Journal   (Followers: 26, SJR: 0.313, h-index: 20)
Holocaust and Genocide Studies     Hybrid Journal   (Followers: 23, SJR: 0.115, h-index: 13)
Human Molecular Genetics     Hybrid Journal   (Followers: 9, SJR: 4.288, h-index: 233)
Human Reproduction     Hybrid Journal   (Followers: 78, SJR: 2.271, h-index: 179)
Human Reproduction Update     Hybrid Journal   (Followers: 18, SJR: 4.678, h-index: 128)
Human Rights Law Review     Hybrid Journal   (Followers: 59, SJR: 0.7, h-index: 21)
ICES J. of Marine Science: J. du Conseil     Hybrid Journal   (Followers: 53, SJR: 1.233, h-index: 88)
ICSID Review     Hybrid Journal   (Followers: 9)
ILAR J.     Hybrid Journal   (Followers: 1, SJR: 1.099, h-index: 51)
IMA J. of Applied Mathematics     Hybrid Journal   (SJR: 0.329, h-index: 26)
IMA J. of Management Mathematics     Hybrid Journal   (Followers: 2, SJR: 0.351, h-index: 20)
IMA J. of Mathematical Control and Information     Hybrid Journal   (Followers: 2, SJR: 0.661, h-index: 28)
IMA J. of Numerical Analysis - advance access     Hybrid Journal   (SJR: 2.032, h-index: 44)
Industrial and Corporate Change     Hybrid Journal   (Followers: 8, SJR: 1.37, h-index: 81)
Industrial Law J.     Hybrid Journal   (Followers: 29, SJR: 0.184, h-index: 15)
Information and Inference     Free  
Integrative and Comparative Biology     Hybrid Journal   (Followers: 8, SJR: 1.911, h-index: 90)
Interacting with Computers     Hybrid Journal   (Followers: 10, SJR: 0.529, h-index: 59)
Interactive CardioVascular and Thoracic Surgery     Hybrid Journal   (Followers: 5, SJR: 0.743, h-index: 35)
Intl. Affairs     Hybrid Journal   (Followers: 51, SJR: 1.264, h-index: 53)
Intl. Data Privacy Law     Hybrid Journal   (Followers: 28)
Intl. Health     Hybrid Journal   (Followers: 5, SJR: 0.835, h-index: 15)
Intl. Immunology     Hybrid Journal   (Followers: 3, SJR: 1.613, h-index: 111)
Intl. J. for Quality in Health Care     Hybrid Journal   (Followers: 32, SJR: 1.593, h-index: 69)
Intl. J. of Constitutional Law     Hybrid Journal   (Followers: 59, SJR: 0.613, h-index: 19)
Intl. J. of Epidemiology     Hybrid Journal   (Followers: 134, SJR: 4.381, h-index: 145)
Intl. J. of Law and Information Technology     Hybrid Journal   (Followers: 4, SJR: 0.247, h-index: 8)
Intl. J. of Law, Policy and the Family     Hybrid Journal   (Followers: 29, SJR: 0.307, h-index: 15)
Intl. J. of Lexicography     Hybrid Journal   (Followers: 8, SJR: 0.404, h-index: 18)
Intl. J. of Low-Carbon Technologies     Open Access   (Followers: 1, SJR: 0.457, h-index: 12)
Intl. J. of Neuropsychopharmacology     Open Access   (Followers: 3, SJR: 1.69, h-index: 79)
Intl. J. of Public Opinion Research     Hybrid Journal   (Followers: 9, SJR: 0.906, h-index: 33)
Intl. J. of Refugee Law     Hybrid Journal   (Followers: 32, SJR: 0.231, h-index: 21)
Intl. J. of Transitional Justice     Hybrid Journal   (Followers: 13, SJR: 0.833, h-index: 12)
Intl. Mathematics Research Notices     Hybrid Journal   (Followers: 1, SJR: 2.052, h-index: 42)
Intl. Political Sociology     Hybrid Journal   (Followers: 31, SJR: 1.339, h-index: 19)
Intl. Relations of the Asia-Pacific     Hybrid Journal   (Followers: 17, SJR: 0.539, h-index: 17)
Intl. Studies Perspectives     Hybrid Journal   (Followers: 7, SJR: 0.998, h-index: 28)
Intl. Studies Quarterly     Hybrid Journal   (Followers: 38, SJR: 2.184, h-index: 68)
Intl. Studies Review     Hybrid Journal   (Followers: 18, SJR: 0.783, h-index: 38)
ISLE: Interdisciplinary Studies in Literature and Environment     Hybrid Journal   (Followers: 1, SJR: 0.155, h-index: 4)
ITNOW     Hybrid Journal   (Followers: 2, SJR: 0.102, h-index: 4)
J. of African Economies     Hybrid Journal   (Followers: 15, SJR: 0.647, h-index: 30)
J. of American History     Hybrid Journal   (Followers: 40, SJR: 0.286, h-index: 34)
J. of Analytical Toxicology     Hybrid Journal   (Followers: 13, SJR: 1.038, h-index: 60)
J. of Antimicrobial Chemotherapy     Hybrid Journal   (Followers: 12, SJR: 2.157, h-index: 149)
J. of Antitrust Enforcement     Hybrid Journal   (Followers: 1)
J. of Applied Poultry Research     Hybrid Journal   (Followers: 3, SJR: 0.563, h-index: 43)
J. of Biochemistry     Hybrid Journal   (Followers: 43, SJR: 1.341, h-index: 96)
J. of Chromatographic Science     Hybrid Journal   (Followers: 16, SJR: 0.448, h-index: 42)
J. of Church and State     Hybrid Journal   (Followers: 11, SJR: 0.167, h-index: 11)
J. of Competition Law and Economics     Hybrid Journal   (Followers: 34, SJR: 0.442, h-index: 16)
J. of Complex Networks     Hybrid Journal   (Followers: 1, SJR: 1.165, h-index: 5)
J. of Conflict and Security Law     Hybrid Journal   (Followers: 12, SJR: 0.196, h-index: 15)
J. of Consumer Research     Full-text available via subscription   (Followers: 41, SJR: 4.896, h-index: 121)
J. of Crohn's and Colitis     Hybrid Journal   (Followers: 9, SJR: 1.543, h-index: 37)
J. of Cybersecurity     Hybrid Journal   (Followers: 3)
J. of Deaf Studies and Deaf Education     Hybrid Journal   (Followers: 9, SJR: 0.69, h-index: 36)
J. of Design History     Hybrid Journal   (Followers: 15, SJR: 0.166, h-index: 14)
J. of Economic Entomology     Full-text available via subscription   (Followers: 6, SJR: 0.894, h-index: 76)
J. of Economic Geography     Hybrid Journal   (Followers: 39, SJR: 2.909, h-index: 69)
J. of Environmental Law     Hybrid Journal   (Followers: 23, SJR: 0.457, h-index: 20)
J. of European Competition Law & Practice     Hybrid Journal   (Followers: 18)
J. of Experimental Botany     Hybrid Journal   (Followers: 14, SJR: 2.798, h-index: 163)
J. of Financial Econometrics     Hybrid Journal   (Followers: 21, SJR: 1.314, h-index: 27)
J. of Global Security Studies     Hybrid Journal   (Followers: 3)
J. of Heredity     Hybrid Journal   (Followers: 4, SJR: 1.024, h-index: 76)
J. of Hindu Studies     Hybrid Journal   (Followers: 7, SJR: 0.186, h-index: 3)
J. of Hip Preservation Surgery     Open Access  
J. of Human Rights Practice     Hybrid Journal   (Followers: 20, SJR: 0.399, h-index: 10)
J. of Infectious Diseases     Hybrid Journal   (Followers: 40, SJR: 4, h-index: 209)
J. of Insect Science     Open Access   (Followers: 9, SJR: 0.388, h-index: 31)

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Journal Cover IMA Journal of Mathematical Control and Information
  [SJR: 0.661]   [H-I: 28]   [2 followers]  Follow
   Hybrid Journal Hybrid journal (It can contain Open Access articles)
   ISSN (Print) 0265-0754 - ISSN (Online) 1471-6887
   Published by Oxford University Press Homepage  [370 journals]
  • Optimal control problem with unilateral constraints for longitudinal
           vibration of a viscoelastic valve
    • Authors: Sun B.
      Pages: 697 - 715
      Abstract: AbstractThis paper is dedicated to the study of an optimal distributed control problem with unilateral constraints for a viscoelastic valve vibrating longitudinally and having its motion limited by rigid obstacles at both ends. By the Dubovitskii and Milyutin functional analytical approach, we prove the Pontryagin maximum principle of the investigational system and establish the necessary condition for optimality for the controlled object in fixed final horizon case. In contrast to the finite-dimensional setting, the maximum principle for the infinite-dimensional system does not generally hold as a necessary condition for optimal control. In this paper, we commit ourselves to infinite-dimensional generalizations of the maximum principle and aim at the optimal control theory of partial differential equations. And at the end of the article, we also remark the applicability of the obtained results.
      PubDate: 2016-01-07
      DOI: 10.1093/imamci/dnv072
      Issue No: Vol. 34, No. 2 (2016)
  • Robust stabilization of differential systems with state delays
    • Authors: Medina R; Martinez C.
      Pages: 359 - 374
      Abstract: AbstractWe discuss the problem of stabilizability by linear state feedback for perturbed linear time-varying systems with state delays. Assuming appropriate conditions on the perturbation term, it is shown that if every frozen-time control system is stabilizable, then the corresponding non-autonomous control system is exponentially stabilizable, provided that the rate of variation of the system coefficient matrices is sufficiently small. As an application of the main results, we study the exponential stabilizability of a general non-linear control system with several state delays. It is also shown that, for frozen-time control systems, with a sufficiently small rate of variation of coefficient matrices, a stabilizing feedback gain control matrix can be designed from the positive definite solutions of a frozen-time algebraic Riccati equation.
      PubDate: 2015-09-03
      DOI: 10.1093/imamci/dnv048
      Issue No: Vol. 34, No. 2 (2015)
  • On homogeneous parameter-dependent quadratic Lyapunov function for robust
           fault detection filter design and application
    • Authors: Pang G; Liu J, Zhang K, et al.
      Pages: 375 - 403
      Abstract: AbstractThis paper is concerned with the problem of the fault detection filter design for discrete-time system with polytopic uncertainties. The proposed fault detection filter framework consists of the fault effect on the residual signal is maximized and the disturbance effects on the residual signals is minimized. Since model uncertainties may result in significant changes in the residual, homogeneous parameter-dependent quadratic Lyapunov function method is used to suppress the effect of model uncertainties. Moreover, it is more effective compared with common Lyapunov function method. Lastly, simulation results obtained in inductance resistance capacitor circuit system and numerical examples are used to illustrate the effectiveness of our method.
      PubDate: 2015-09-16
      DOI: 10.1093/imamci/dnv051
      Issue No: Vol. 34, No. 2 (2015)
  • An LMI-based controller design method for a discrete-time linear system
           with time-varying state delays
    • Authors: Wada N; Satoh K, Saeki M.
      Pages: 405 - 424
      Abstract: AbstractIn this paper, we show a design method of a feedback controller for a discrete-time linear system with time-varying state delays. The proposed design condition is derived based on the generalized Lyapunov–Krasovskii function. Firstly, a design condition is derived as a bilinear matrix inequality (BMI) condition. Since it is difficult to obtain a solution that satisfies the BMI condition directly, we convert the condition to a more tractable design condition by introducing a slack variable that has a special structure. The obtained condition can be reduced to a linear matrix inequality condition when a scalar parameter is fixed. Two numerical examples are provided to show effectiveness of the proposed method.
      PubDate: 2015-09-21
      DOI: 10.1093/imamci/dnv052
      Issue No: Vol. 34, No. 2 (2015)
  • A new approach to risk sensitivity
    • Authors: Baczynski J.
      Pages: 425 - 449
      Abstract: AbstractA new concept of risk sensitivity is devised, unveiling a class of functions not detected as risk sensitive in the classical scenario. It allows extending known risk sensitive control problems and provides a new pattern concerning the format of the problems to come. We show that the classical concept is insensitive to risk over time and that this may lead to critical exposures regardless how strong the controller's risk aversion is. The new concept, instead, fully covers this aspect. Relations between the classical concept and the corresponding restriction of the new concept are established. Particularly, in the important affine case, we showed that both concepts are equivalent and, parallel to the classical case, risk sensitivity and convexity are equivalent. We provide examples via richer versions of the linear exponential of quadratic Gaussian optimal control problem and the non-linear partially observed optimal control problem given in James et al. (1994, IEEE Trans. Autom. Control, 39, 780–792).
      PubDate: 2015-09-25
      DOI: 10.1093/imamci/dnv054
      Issue No: Vol. 34, No. 2 (2015)
  • Stability of homogeneous non-linear systems
    • Authors: Kharrat T.
      Pages: 451 - 461
      Abstract: AbstractIn this paper, using some results on manifolds, we establish some conditions for asymptotic stability and stabilization of single-input homogeneous systems.
      PubDate: 2015-09-29
      DOI: 10.1093/imamci/dnv050
      Issue No: Vol. 34, No. 2 (2015)
  • The optimal control problem with state constraints for forward–backward
           stochastic systems with jumps
    • Authors: Wei Q.
      Pages: 463 - 478
      Abstract: AbstractIn this paper, we investigate the stochastic optimal control problem for forward–backward stochastic system with jumps, while the forward terminal state is constrained in a convex set. By transforming the original forward–backward controlled model into a pure backward controlled one, using the terminal perturbation method, we derive the stochastic maximum principle, i.e. the necessary condition for the optimal control. Finally, under the state constraints, the corresponding optimal control problem of the linear quadratic stochastic model with jumps is discussed.
      PubDate: 2015-09-29
      DOI: 10.1093/imamci/dnv053
      Issue No: Vol. 34, No. 2 (2015)
  • Robust reduced-order controller synthesis: a dilated LMI approach
    • Authors: Sadeghzadeh A.
      Pages: 479 - 499
      Abstract: AbstractThis paper develops a new method for the synthesis of robust reduced-order dynamic output feedback controllers for linear time-invariant systems. $H_2$ and $H_\infty $ performance criteria are considered. The method is applicable for both discrete-time and continuous-time systems. The proposed method is based on recently developed extended or dilated linear matrix inequalities (LMIs). A new structure of the slack matrix variables is introduced to obtain an LMI relaxation for the non-convex robust reduced-order controller design problem. The uncertain time-invariant parameters belong to a polytopic domain and affect all the system matrices. Numerical examples demonstrate the effectiveness of the proposed approach.
      PubDate: 2015-10-08
      DOI: 10.1093/imamci/dnv055
      Issue No: Vol. 34, No. 2 (2015)
  • Interpolation techniques for robust constrained model predictive control
           based on polyhedral invariant set
    • Authors: Kheawhom S; Bumroongsri P.
      Pages: 501 - 519
      Abstract: AbstractThis work studies interpolation techniques that can be employed on off-line robust constrained model predictive control (MPC) for a discrete time-varying system with polytopic parametric uncertainty. A sequence of feedback gains is determined by solving off-line a series of optimal control optimization problems. A sequence of nested corresponding polyhedral invariant set is then constructed. At each sampling time, the smallest invariant set containing the current state is determined. If the current invariant set is the innermost set, the pre-computed gain associated with the innermost set is applied. If otherwise, a feedback gain is variable and determined by a linear interpolation of the pre-computed gains. Two interpolation algorithms are investigated. The proposed algorithms are illustrated with case studies of a two-tank system and a four-tank system. The simulation results showed that the proposed interpolation techniques can improve control performance of off-line robust MPC while on-line computation is still tractable.
      PubDate: 2015-10-27
      DOI: 10.1093/imamci/dnv057
      Issue No: Vol. 34, No. 2 (2015)
  • Existence and general decay for the full von Kármán beam with a
           thermo-viscoelastic damping, frictional dampings and a delay term
    • Authors: Liu W; Chen K, Yu J.
      Pages: 521 - 542
      Abstract: AbstractIn this paper, we study the global existence and general decay rate for a one-dimensional full von Kármán beam with a thermo-viscoelastic damping, frictional dampings and a delay term in the internal feedback. First, we use the Faedo–Galerkin approximations together with energy estimates to obtain the existence and uniqueness of the global solutions. Then, by introducing suitable energy and Lyapunov functionals, under a hypothesis between the weight of the delay term and the weight of the friction damping term in the internal feedback, we establish a general decay rate result for the energy, which allows a wider class of relaxation functions, and thus generalize some previous results existing in the literature.
      PubDate: 2015-10-27
      DOI: 10.1093/imamci/dnv056
      Issue No: Vol. 34, No. 2 (2015)
  • Fuzzy networked control systems with communication constraints
    • Authors: Mahmoud MS.
      Pages: 543 - 564
      Abstract: AbstractThe state and observer-based feedback control designs for linear systems connected over a common digital communication network are addressed. Digital communication network conditions, such as network-induced delays, data packet dropouts and limited communication capacity due to signal quantization are taken into consideration. A control design criterion is derived on the basis of the Lyapunov–Krasovskii functional method. A novel interval delay system approach is used for stability analysis and control synthesis for networked control systems with two static quantizers. Two numerical examples are given to show the application of the method proposed.
      PubDate: 2015-10-28
      DOI: 10.1093/imamci/dnv058
      Issue No: Vol. 34, No. 2 (2015)
  • Supervisor synthesis for enforcing linear constraints on a class of Petri
           nets with unobservable transitions
    • Authors: Ran N; Wang S, Su H, et al.
      Pages: 565 - 577
      Abstract: AbstractIt is important to solve the forbidden state problem in discrete event systems modelled by Petri nets with unobservable transitions. This paper studies the structurally optimal transformation for a class of Petri nets whose unobservable influence subnets are $\alpha $ nets. First, the concepts of an unobservable influence subnet, an A-path, an A-circuit and an $\alpha $ net are defined, and some of their properties are proposed. Next, a method is proposed to transform a given generalized mutual exclusion constraint into a structurally optimal one that can be enforced directly on the net in the form of monitor-based supervisors. It has high-computational efficiency since it is of polynomial complexity with respect to the net size. Finally, an example is used to illustrate the application of the proposed method.
      PubDate: 2015-10-29
      DOI: 10.1093/imamci/dnv059
      Issue No: Vol. 34, No. 2 (2015)
  • Synchronization of complex networks with coupling delay via pinning
    • Authors: Yang X; Cao J.
      Pages: 579 - 596
      Abstract: AbstractThis paper investigates global asymptotic synchronization for a class of complex networks with communication delay (time-delayed couplings). Both a time-delayed state feedback controller and time-delayed adaptive controller are designed. Several sufficient conditions formulated by linear matrix inequalities are derived. Our results show that the considered network can be synchronized onto an isolated node by adding the designed controllers to a small fraction of the coupled nodes (delayed pinning control). Moreover, it is found that (a) if the upper bound of the coupling delay is too large, then the coupled networks cannot be pinned to the synchronization state with any control gains, even if all the nodes are controlled; (b) the delayed pinning controller with either too low or too large control gains cannot realize the synchronization goal. Two examples are given to verify the theoretical results.
      PubDate: 2015-12-08
      DOI: 10.1093/imamci/dnv065
      Issue No: Vol. 34, No. 2 (2015)
  • Continuous fractional sliding mode-like control for exact rejection of
           non-differentiable Hölder disturbances
    • Authors: Muñoz-Vázquez AJ; Parra-Vega VV, Sánchez-Orta AA.
      Pages: 597 - 610
      Abstract: AbstractExploiting algebraic and topological properties of differintegral operators as well as a proposed principle of dynamic memory resetting, a uniform continuous sliding mode controller for a general class of integer order affine non-linear systems is proposed. The controller rejects a wide class of disturbances, enforcing in finite-time a sliding regime without chattering. Such disturbance is of Hölder type that is not necessarily differentiable in the usual (integer order) sense. The control signal is uniformly continuous in contrast to the classical (integer order) discontinuous scheme that has been proposed for both fractional and integer order systems. The proposed principle of dynamic memory resetting allows demonstrating robustness as well as: (i) finite-time convergence of the sliding manifold, (ii) asymptotic convergence of tracking errors, and (iii) exact disturbance observation. The validity of the proposed scheme is discussed in a representative numerical study.
      PubDate: 2015-12-08
      DOI: 10.1093/imamci/dnv064
      Issue No: Vol. 34, No. 2 (2015)
  • A direct approach for approximate optimal control of integro-differential
           equations based on homotopy analysis and parametrization method
    • Authors: Alipour MM; Vali MA, Borzabadi AH.
      Pages: 611 - 630
      Abstract: AbstractThis paper contributes a suitable hybrid iterative scheme for solving optimal control problems governed by integro-differential equations. The technique is based upon homotopy analysis and parametrization methods. Comparison of the obtained results of the proposed method with other methods shows that the method is reliable and capable of providing analytic treatment for solving such equations. Convergence analysis is presented. Some illustrative examples are given to demonstrate the accuracy of the proposed method.
      PubDate: 2015-12-09
      DOI: 10.1093/imamci/dnv061
      Issue No: Vol. 34, No. 2 (2015)
  • Asymptotic stability analysis of planar switched homogeneous systems
    • Authors: Mahani K; Karimpour A, Pariz N.
      Pages: 631 - 653
      Abstract: AbstractThe main purpose of this study is to provide a novel approach to asymptotic stability analysis of planar switched systems. These switched systems are generated by a family of two-dimensional autonomous subsystems with generalized homogeneous right-hand sides. Here, we consider arbitrary numbers of subsystems with the same dilation coefficients and possibly different degrees of homogeneity. First, based on homogeneity and graphical characteristics, we introduce the new concept of quasi-polar representation form for two-dimensional vector fields. Then using quasi-polar representation form, we define homogeneous rotational direction and growth rate of state trajectories, by which we present sufficient conditions for global asymptotic stability of planar switched homogeneous (PSH) systems. To show the asymptotic stability of such systems, Lyapunov stability and convergence of system's response are proved. Unidirectional and bidirectional stabilizing switching laws are also probed for PSH systems. Simulation results show the applicability of the approach.
      PubDate: 2015-12-17
      DOI: 10.1093/imamci/dnv066
      Issue No: Vol. 34, No. 2 (2015)
  • Asynchronous control of discrete-time switched systems with non-linear
    • Authors: Gao J; Wang X.
      Pages: 655 - 666
      Abstract: AbstractThis paper is concerned with the asynchronous control problem for a class of discrete-time switched systems with non-linear perturbation. The asynchronous switching means that the switching signal of the controller experiences a time delay with respect to that of the system. The analytical solution of the state equation for the asynchronously switched system is utilized to study the dynamics of the system directly without constructing the Lyapunov function. By using the average dwell time approach, sufficient conditions for exponential stability of a closed-loop system are established. Moreover, asynchronously switched controllers are designed in terms of linear matrix inequalities. Finally, a numerical example is given to illustrate the effectiveness of the proposed method.
      PubDate: 2015-12-17
      DOI: 10.1093/imamci/dnv063
      Issue No: Vol. 34, No. 2 (2015)
  • Containment control for multi-agent systems with input saturation
    • Authors: Miao G; Feng Y, Li T.
      Pages: 667 - 682
      Abstract: AbstractThis paper investigates containment control problem for multi-agent systems with input saturation. Firstly, containment control algorithms are designed for the first-order and second-order cases with input saturation. In this framework, some sufficient conditions for the existence of such containment control are proposed, which guarantees that the position states of the followers converge to the convex hull formed by leaders. Secondly, the obtained results are further extended to the high-order case. Finally, simulation examples are given to illustrate the effectiveness of our proposed method.
      PubDate: 2015-12-17
      DOI: 10.1093/imamci/dnv068
      Issue No: Vol. 34, No. 2 (2015)
  • Event-trigger-based hybrid scheduling and feedback control for networked
           control systems
    • Authors: Ma Q; Zhou C, Zhu X, et al.
      Pages: 683 - 696
      Abstract: AbstractAn integrated design scheme of hybrid scheduling strategy and state feedback control for resource-constrained networked control systems (NCSs) with time-delay is proposed in this paper. The hybrid scheduling scheme integrates an event-triggered mechanism with the multi-threshold and dynamic dwell -time switching rule in order to achieve stronger flexibility and less conservatives. The event-triggered mechanism determines the system corresponding mode which can avoid the unnecessary signals transmission and reduce network bandwidth occupation in a certain extent. Furthermore, dynamic dwell-time switching rule is used to determine its dwell-time of each mode which can reduce switching frequency and improve system dynamic performance. Firstly, the NCS is modelled as a discrete-time switched system with parameter uncertainties. Secondly, by using multiple Lyapunov function and linear matrix inequality (LMI) technique, an integrated design scheme of the hybrid scheduling and feedback controller is presented in order to guarantee the asymptotic stability of the closed-loop system. Finally, a simulation example illustrates the efficiency of the proposed method.
      PubDate: 2015-12-24
      DOI: 10.1093/imamci/dnv069
      Issue No: Vol. 34, No. 2 (2015)
School of Mathematical and Computer Sciences
Heriot-Watt University
Edinburgh, EH14 4AS, UK
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