We investigate resilient control strategies for linear systems under Denial-of-Service (DoS) attacks. By DoS attacks we mean interruptions of communication on measurement (sensor-to-controller) and control (controller-to-actuator) channels carried out by an intelligent adversary. We characterize the duration of these interruptions under which stability of the closed-loop system is preserved. Th...

Department of Bioscience and Buccal Diagnosis, São Jose dos Campos School of Dentistry, State University of São Paulo – UNESP, Av. Engenheiro Francisco José Longo, 777, 12245-000 São José dos Campos SP, Brazil National Institute of Technology, Av. Venezuela, 200, Centro, Rio de Janeiro RJ, Brazil Department of Materials, Air and Space Institute, CTA, Praça Mal. do Ar Eduardo Gomes, 14, 12904-00...

A recent escalation of application layer Denial of Service attacks (DoS) on the Internet has quickly shifted the focus of the research community from traditional network-based denial of service. As a result, new varieties of attacks were explored: slow-rate and low-rate application layer DoS attacks. In this chapter, after a brief introduction of application layer DoS attacks, we discuss the ch...

Rodrigo Siqueira-Batista1, Mauro Geller2 and Andréia Patrícia Gomes3 1Professor of Internal Medicine, Neuroscience and Immunology/Microbiology, Centro Universitário Serra dos Órgãos (UNIFESO); 2Professor of Immunology and Microbiology, Centro Universitário Serra dos Órgãos (UNIFESO); Coordinator of Genodermatosis, Genetic Services, Instituto Puericultura e Pediatria Martagão Gesteira (IPPMG), F...

This paper addresses the stabilization of quantized linear systems under Denial-of-Service (DoS) attacks. Using a state transformation that satisfies a certain norm condition, we first propose an output encoding method that achieves the stabilization of systems with finite-data rates only under an assumption on the duration of DoS attacks. Next we add a condition on the frequency of DoS attacks...

The vibrational density of states DOS of hydrogen trapped at dislocations in deformed PdH0.0008 has been measured at 4 and 295 K with incoherent inelastic neutron scattering. The vibrational DOS at 4 K exhibits features characteristic of the low-temperature -Pd hydride phase while the characteristic peak in the 295 K DOS corresponds to the solid-solution -Pd phase. This is evidence of a → trans...

well-defined crystalline pbse nanocubes and nanospheres have been synthesized through a simple hydrothermal method by using pb2+- edta and pb2+- oleylamine complexes at 180°c for different reaction times. composition and morphology of the samples have been characterized by means of xrd and sem. gradual release process of pb2+ from pb2+-edta and pb2+-oleylamine complexes can adjust the growth ra...

1 Departamento de Oceanografia e Pescas, Instituto do Mar, Universidade dos Açores, Horta, Portugal, 2 Marine and Environmental Sciences Centre, Universidade dos Açores, Horta, Portugal, 3 Departamento de Oceanografia e Pescas, Universidade dos Açores, Horta, Portugal, 4 Marine and Environmental Sciences Centre, Universidade de Coimbra, Coimbra, Portugal, 5 Aquatic Ecosystems Research Laborator...

The efficient, simultaneous synthesis of structurally diverse compounds, better known as diversity-oriented synthesis (DOS), is not obvious, and remains a challenge to synthetic chemistry. This personal account details why DOS has such enormous implications for the discovery of small molecules with desired properties, such as catalysts, synthetic reagents, biological probes and new drugs, Also,...

The definition and main results connected with Gröbner basis, Hilbert series and Anick's resolution are formulated. The method of the infinity behavior prediction of Gröbner basis in noncommu-tative case is presented. The extensions of BERGMAN package for IBM PC compatible computers are described. Let A =< X|R > be a finitely presented associative algebra over field K. Here are the main example...