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showing 10 items of 1409 documents
Kalmbergin kartasto R V : List 11
1855
Nexus of Electrospun Nanofibers and Additive Processing—Overview of Wearable Tactical Gears for CBRNE Defense
2021
Due to complex nature of twenty-first century battlefield, soldiers must perform multiple tasks to protect nations while maintaining their own safety. Advances in technological innovations are critical to support such functionalities to enhance safety and security. Using nexus of electrospinning and additive processing, we present how recent developments can be used to produce new generation of protective fabrics with integrative force protection, sensing/detection of chemical, biological, radiological, nuclear, and high yield explosives (CBRNE), and biomedical functionalities. Although electrospinning has been in use for some time, the special blends and configurations of nanofibers, as de…
BIBO Stability Analysis for Delay Switched Systems with Nonlinear Perturbation
2013
Published version of a paper from the journal:Abstract and Applied Analysis. Also available from Hindawi:http://dx.doi.org/10.1155/2013/738653 The problem of bounded-input bounded-output ( BIBO) stability is investigated for a class of delay switched systems with mixed time-varying discrete and constant neutral delays and nonlinear perturbation. Based on the Lyapunov-Krasovskii functional theory, new BIBO stabilization criteria are established in terms of delay-dependent linear matrix inequalities. The numerical simulation is carried out to demonstrate the effectiveness of the results obtained in the paper.
Stability andl1-Gain Analysis for Positive 2D Systems with State Delays in the Roesser Model
2013
This paper considers the problem of delay-dependent stability andl1-gain analysis for positive 2D systems with state delays described by the Roesser model. Firstly, the copositive-type Lyapunov function method is used to establish the sufficient conditions for the addressed positive 2D system to be asymptotically stable. Then,l1-gain performance for the system is also analyzed. All the obtained results are formulated in the form of linear matrix inequalities (LMIs) which are computationally tractable. Finally, an illustrative example is given to verify the effectiveness of the proposed results.
Application of Wavelet Networks to Adaptive Control of Robotic Manipulators
2011
Published version of a chapter in the book: Intelligent Robotics and Applications. Also available from the publisher at; http://dx.doi.org/10.1007/978-3-642-25489-5_39 In this paper, a wavelet-based adaptive control is proposed for a class of robotic manipulators, which consist of nonlinearities for friction effects and uncertain terms as disturbances. The controller is calculated by using a mixed of feedback linearization technique, supervisory control and H∞ control. In addition, the parameter adaptive laws of the wavelet network are developed using a Lyapunov-based design. It is also shown that both system tracking stability and convergence of the error estimation can be guaranteed in th…
Fuzzy Sliding Mode Controller Design Using Takagi-Sugeno Modelled Nonlinear Systems
2013
Published version of an article in the journal: Mathematical Problems in Engineering. Also available from the publisher at: http://dx.doi.org/10.1155/2013/734094 Open access Adaptive fuzzy sliding mode controller for a class of uncertain nonlinear systems is proposed in this paper. The unknown system dynamics and upper bounds of the minimum approximation errors are adaptively updated with stabilizing adaptive laws. The closed-loop system driven by the proposed controllers is shown to be stable with all the adaptation parameters being bounded. The performance and stability of the proposed control system are achieved analytically using the Lyapunov stability theory. Simulations show that the …
Observer-Based Stabilization of Stochastic Systems with Limited Communication
2012
Published version of an article in the journal: Mathematical Problems in Engineering. Also available from Hindawi: http://dx.doi.org/10.1155/2012/781542 Open Access This paper studies the problem of observer-based stabilization of stochastic nonlinear systems with limited communication. A communication channel exists between the output of the plant and the input of the dynamic controller, which is considered network-induced delays, data packet dropouts, and measurement quantization. A new stability criterion is derived for the stochastic nonlinear system by using the Lyapunov functional approach. Based on this, the design procedure of observer-based controller is presented,which ensures asy…
Application of the LISS Lyapunov-Krasovskii small-gain theorem to autonomously controlled production networks with time-delays
2010
Accepted version of a paper published by IEEE. (c) 2010 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works Published version: http://dx.doi.org/10.1109/SYSTOL.2010.5676085 In this paper we consider general autonomously controlled production networks. A production network consists of geographically distributed plants, which are connected by transport routes such that transportation times (time-delays) …
Pohjanmaan kaupunkien tuomareihin kohdistetut virkavirhesyytteet n. 1780-1880
2021
Oikeuslaitoksen toiminnan tehottomuuteen puututtiin 1700-luvun puolivälissä lukuisten valtiopäivävalitusten jälkeen. Vuosina 1761 ja 1766 annetut kuninkaalliset ohjauskirjeet tulivat viitoittamaan alioikeuksien valvontaa aina 1920-luvulle saakka. Hovioikeuden kanneviskaalin tehtävänä oli valvoa oman hovioikeuspiirinsä alioikeuksien toimintaa ja lainmukaisuutta. Vaasan hovioikeuden kanneviskaalin arkiston asiakirjat antavat mahdollisuuden tutkia vireille pantuja virkavirhesyytöksiä ja niistä annettuja päätöksiä ja tuomioita. Tutkimuksessa on käsitelty neljän Pohjanmaan kaupungin, Vaasan, Kokkolan, Oulun ja Tornion kaupunkien tuomareiden virkavirhesyytteitä viitenä ajanjaksona 1780-luvulta 18…