With the increasing aging population, contemporary society faces imperative to develop approaches that efficiently delay age-related decline in working memory capacity, which is a critical area within cognitive research. Nevertheless, there insufficient evidence support efficacy of verbal training across various sensory modalities (visual, auditory, and audiovisual) enhancing capacity older adults. In this study, 60 healthy adults (mean age = 67.07 ± 3.79 years, comprising 34 women 26 men,...

Studies show that in industrial wind turbines (WTs), the speed may significantly vary across rotor disk area. This variation originate from different parameters, including shear (WS) and tower shadow (TS), which affect mechanical load generated electrical power. However, influence of on fault characteristics WTs has rarely been investigated so far. As an improvement, this study made attempt to investigate impact spatiotemporal distribution (STD) characteristic doubly fed induction generator...

Iterative learning control has been developed for processes or systems that complete the same finite duration task over and again. The mode of operation is after each execution system resets to starting location, next completed so on. Each known as a trial its termed length. Once information generated available use in computing input trial. This paper uses repetitive process setting develop new results on design higher-order ILC laws discrete dynamics. include conditions guarantee error...

During a magnetic storm, the induced geoelectric field drives geomagnetically currents (GIC) in power transmission networks, railway systems, and pipelines, negatively affecting these systems. In regions with complex geological structures, lateral earth conductivity changes influence electric distribution earth. H- E-polarization are two cases of orientation E-field vector relative to changes. A model is established this paper examine effects change across discontinuity on magnitude for case...

Compared with the investigation of geomagnetically induced currents (GIC) in power grids, there is less study about effect geomagnetic disturbance (GMD) on buried oil and gas pipelines mid-low latitude areas, which includes GIC pipe-to-soil potentials (PSP) effects. Therefore, it great significance to research GMD latitudes. For this purpose, we performed observation experiments influencing PSP China's pipelines. The data are obtained, do not pertain characteristics storms caused by solar...

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Piezoelectric actuators (PEAs) exhibit hysteresis nonlinearity in open-loop operation, which may lead to undesirable inaccuracy and limit system performance. Classical Preisach model is widely used for portraying but it requires a large number of first-order reversal curves ensure the accuracy. All not be obtained due limitations experimental conditions, detachment between major minor loops taken into account. This paper aims propose modified that demands relatively few measurements...

Purpose – Piezoelectric actuators (PEAs) exhibit hysteresis nonlinearity in open-loop operation, which may lead to unwanted inaccuracy and limit system performance. Classical Preisach model is widely used for representing but it requires a large number of first-order reversal curves ensure the accuracy. All not be obtained due limitations experimental conditions, detachment between major minor loops taken into account. The purpose this paper propose modified that relatively few measurements...

The blade mass imbalance fault is one of the common faults DFIG (Doubly-Fed Induction Generator) wind turbines (WTs). In this paper, considering spatiotemporal distribution natural speed and influence shear tower shadow effect, on electrical characteristics WTs analyzed. Firstly, analytical expressions variation electromagnetic torque power under are derived before after consideration speed. Then simulations MATLAB/Simulink platform were done to verify theoretical analysis results....

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We aim to design and provide a compact security system for keeping track of personal belongings or assets. If registered asset is out range 5 feet, the monitoring will alert user. The tracking mainly composed mobile transmitting module receiving carried by person. Personal objects (such as passport, phones, laptops portable devices) are attached with used secure different objects. consists encoding circuit wireless circuit. And receiving, decoding circuits. In addition, can identify item...

Iterative learning control is applicable to systems that make sweeps or passes through dynamics defined over a finite duration. Once each pass complete all information generated as its evolve are available for use in designing the action be applied on next sweep. The design problem construct sequence of inputs enforce convergence specified reference formed from output produced and this form input used previous plus correction term computed using output. A critical feature ability would...

Abstract The measurement and analysis on torsional vibration is an important aspect to research the performance state of rotating machinery’s shaft. This paper introduces basic procedure measurement, deduces manifestation signal, focuses hardware design software implementation system, applies system a certain type ship steam turbine generator shaft in actual testing. results verify practicability accuracy system.

Iterative learning control has been developed for processes or systems that complete the same finite duration task over and again. After each execution is complete, system resets to initial location, a stoppage time occurs, then next can begin. In literature commonly known as trial termed length. Once all information generated length available use in computing input be applied on trial. This includes would non-causal standard sense availability of such purposes major novel feature. The...

Landing door system plays important role in the safe operation of elevator. Traditional design based on a certain variable as factor, and seldom investigate performance impact from perspective systems. In this paper, optimized method response surface for landing is presented. The second order model with meshing depth upper guide device, thickness leaf, lower holding device fitted by experimental method. On basis model, optimal relationship proposed components' parameters calculated out,...

This paper introduces a new type of synchronized phasor measurement unit based on digital signal processor, including function each module, hardware design and subprogram structure.

A novel hybrid-genetic-algorithm process in multi-objective parallel mode (NHMGA), operated for tracking a 2-period-BP model-mapping, supported by optimally equipped Grid-computing framework, is proposed. This NHMGA specially designed personal on-line and real-time bio-information modeling which successfully applied soft-sensing of blood-glucose. The related application example its result analysis are described. Owing to the non-invasive based on possesses advantages, such as...

Protected and protected/permitted are two major left-turn control types at signalized intersections. Selection of one over the other usually involves comparing results in aspect efficiency versus safety. This paper presents an economic analysis approach to assessing protected only control. The a benefit-cost utilizing simulation tools statistical methods evaluate change type from A case study was conducted demonstrate application approach. Based on study, it shows that by implementing...