Dwell time
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Effects of microstructure on high temperature dwell fatigue crack growth in a coarse grain PM nickel based superalloy Open
The influence of microstructure on the dwell fatigue crack growth behaviour of an advanced nickel-based superalloy was investigated at a temperature of 700 °C. Microstructural variations were induced by heat treatment variables: different …
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Stabilization of Boolean Control Networks Under Aperiodic Sampled-Data Control Open
A novel technique is provided for the global stability analysis of Boolean control networks (BCNs) under aperiodic sampled-data control (ASDC). The sampling period is allowed to be taken from a limited number of values. Using the semitenso…
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Quantification of more than 150 micropollutants including transformation products in aqueous samples by liquid chromatography-tandem mass spectrometry using scheduled multiple reaction monitoring Open
A direct injection, multi residue analytical method separated in two chromatographic runs was developed utilizing scheduled analysis to simultaneously quantify 154 compounds, 84 precursors and 70 transformation products (TPs)/metabolites. …
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EyeSwipe Open
Text entry using gaze-based interaction is a vital communication tool for people with motor impairments. Most solutions require the user to fixate on a key for a given dwell time to select it, thus limiting the typing speed. In this paper …
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Hysteresis quantified control for switched reaction–diffusion systems and its application Open
This article addresses the exponential input-to-state stabilization problem for switched reaction–diffusion systems, in which the systems’ mode jumping complies with the persistent dwell-time switching mechanism. On the basis of point meas…
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Understanding User Attention and Engagement in Online News Reading Open
Prior work on user engagement with online media identified web page dwell time as a key metric reflecting level of user engagement with online news articles. While on average, dwell time gives a reasonable estimate of user experience with …
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Conditions for the Stability of Switched Systems Containing Unstable Subsystems Open
This brief studies the stability of switched systems in which all the subsystems may be unstable. In addition, some of the switching behaviors of the systems are destabilizing. By using the piecewise Lyapunov function method and taking a t…
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Practical Stabilization of Switched Affine Systems With Dwell-Time Guarantees Open
Using a hybrid systems approach, we address the practical stabilization of operating points for switched affine systems, ensuring a minimum dwell time and an admissible chattering around the operating point. Two different solutions are sho…
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A nanoindentation investigation of local strain rate sensitivity in dual-phase Ti alloys Open
Using nanoindentation we have investigated the local strain rate sensitivity in dual-phase Ti alloys, Ti-6Al-2Sn-4Zr-xMo (x=2 and 6), as strain rate sensitivity could be a potential factor causing cold dwell fatigue. Electron backscatter d…
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<i>H</i><sub>∞</sub> state estimation for memristive neural networks with randomly occurring DoS attacks Open
This study deals with the problem of the [Formula: see text] state estimation for discrete-time memristive neural networks with time-varying delays, where the output is subject to randomly occurring denial-of-service attacks. The average d…
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Results of the Patient-Related Outcomes of Mechanical lead Extraction Techniques (PROMET) study: a multicentre retrospective study on advanced mechanical lead extraction techniques Open
Aims Several large studies have documented the outcome of transvenous lead extraction (TLE), focusing on laser and mechanical methods. To date there has been no large series addressing the results obtained with rotational lead extraction t…
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Event-Triggered Sliding Mode Control of Switched Neural Networks With Mode-Dependent Average Dwell Time Open
This paper is concerned with the sliding mode control problem for a class of continuous-time switched neural networks with mode-dependent average dwell time (MDADT). The considered continuous-time switched neural networks are motivated by …
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Double Barrel Nanopores as a New Tool for Controlling Single-Molecule Transport Open
The ability to control the motion of single biomolecules is key to improving a wide range of biophysical and diagnostic applications. Solid-state nanopores are a promising tool capable of solving this task. However, molecular control and t…
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Control of non‐linear switched systems with average dwell time: interval observer‐based framework Open
The authors address control system design based on an interval observer for non‐linear switched systems with non‐linear vector functions that are assumed to satisfy Lipschitz conditions. First, the observer gain satisfying a Metzler matrix…
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Filteryedping: Design Challenges and User Performance of Dwell-Free Eye Typing Open
The ability to use the movements of the eyes to write is extremely important for individuals with a severe motor disability. With eye typing, a virtual keyboard is shown on the screen and the user enters text by gazing at the intended keys…
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On rate-dependent polycrystal deformation: the temperature sensitivity of cold dwell fatigue Open
A temperature and rate-dependent crystal plasticity framework has been used to examine the temperature sensitivity of stress relaxation, creep and load shedding in model Ti-6Al polycrystal behaviour under dwell fatigue conditions. A temper…
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Event-Based Boundary Control of a Linear Hyperbolic System via Backstepping Approach Open
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Influence of dwell time on microstructure evolution and mechanical properties of dissimilar friction stir spot welded aluminum–copper metals Open
1060 aluminum–T2 copper dissimilar lap joints were produced by friction stir spot welding (FSSW) with various dwell time. All the joints possess a Cu hook extruded upward from the lower Cu plate into the upper Al plate with intermetallic c…
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Logic-based distributed switching control for agents in power-chained form with multiple unknown control directions Open
This work studies logic-based distributed switching control for nonlinear agents in power-chained form, where logic-based (switching) control arises from the online estimation of the control directions assumed to be unknown for all agents.…
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Capabilities of fast data acquisition with microsecond time resolution in inductively coupled plasma mass spectrometry and identification of signal artifacts from millisecond dwell times during detection of single gold nanoparticles Open
In this paper, a home-built DAQ featuring microsecond time resolution is used to demonstrate advantages of fast data acquisition and to uncover potential artifacts in single-particle ICP-MS.
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Lyapunov-Equation-Based Stability Analysis for Switched Linear Systems and Its Application to Switched Adaptive Control Open
This article investigates the stability of continuous-time switched linear systems with dwell-time constraints. A fresh insight into this established problem is provided via novel stability conditions that require the solution to a family …
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Realizing the simultaneous liquid chromatography-tandem mass spectrometry based quantification of >1200 biotoxins, pesticides and veterinary drugs in complex feed Open
The first quantitative multiclass approach enabling the accurate quantification of >1200 biotoxins, pesticides and veterinary drugs in complex feed using liquid chromatography tandem mass spectrometry (LC-MS/MS) has been developed. Optimiz…
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Stability of Positive Switched Linear Systems: Weak Excitation and Robustness to Time-Varying Delay Open
This article investigates the stability of positive switched linear systems. We start from motivating examples and focus on the case when each switched subsystem is marginally stable (in the sense that all the eigenvalues of the subsystem …
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Uncontrolled Electric Vehicle Charging Impacts on Distribution Electric Power Systems with Primarily Residential, Commercial or Industrial Loads Open
An increase in Electric Vehicles (EV) will result in higher demands on the distribution electric power systems (EPS) which may result in thermal line overloading and low voltage violations. To understand the impact, this work simulates two…
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Time-Series Clustering for Home Dwell Time during COVID-19: What Can We Learn from It? Open
In this study, we investigate the potential driving factors that lead to the disparity in the time-series of home dwell time in a data-driven manner, aiming to provide fundamental knowledge that benefits policy-making for better mitigation…
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Engineering and Modeling the Electrophoretic Trapping of a Single Protein Inside a Nanopore Open
The ability to confine and to study single molecules has enabled important advances in natural and applied sciences. Recently, we have shown that unlabeled proteins can be confined inside the biological nanopore Cytolysin A (ClyA) and conf…
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A Switching-Based Adaptive Dynamic Programming Method to Optimal Traffic Signaling Open
The work presented in this paper concerns a switching-based control formulation for multi-intersection and multiphase traffic light systems. A macroscopic traffic flow modeling approach is first presented, which is instrumental to the deve…
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A systematic method of smooth switching LPV controllers design for a morphing aircraft Open
This paper is concerned with a systematic method of smooth switching linear parameter-varying (LPV) controllers design for a morphing aircraft with a variable wing sweep angle. The morphing aircraft is modeled as an LPV system, whose sched…
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Effect of Dwell Time and Scan Rate during Voltage Cycling on Catalyst Degradation in PEM Fuel Cells Open
Catalyst degradation in membrane electrode assemblies was studied by voltage cycling in hydrogen/air atmosphere. The loss of electrochemically active surface area (ECSA) was quantified by cyclic voltammetry. The influence of cycle duration…
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Switching Laws Design for Stability of Finite and Infinite Delayed Switched Systems With Stable and Unstable Modes Open
This paper studies the switching laws designed to maintain the stability of delayed switched nonlinear systems with both stable and unstable modes. The addressed time delays include finite and infinite delays. First, we consider the finite…