Aluminum oxide (Al2O3) nanoparticles (NPs) are extensively utilized in the food industry for applications such as packaging, antimicrobial coatings, processing equipment, and additives. Despite their widespread use, mechanisms underlying Al2O3 NP-induced hepatotoxicity relationship between physicochemical properties toxicity remain inadequately understood. In this study, we explored hepatotoxic effects of α-Al2O3 γ-Al2O3 NPs rats subjected to oral exposure 28 days. Employing an integrated...

The soft switching of power components in inductive transfer systems can reduce loss and stress decrease electromagnetic interference. However, the realization an system may change system's constant voltage current output characteristics. For this reason, article, a zero-voltage technology based on full-bridge inverter that is decoupled from characteristics proposed validated. First, basic conditions for to achieve zero are derived by analyzing working mode circuit. Then, current, output,...

Considering the demand for miniaturization of electronic precision components 6G communication development, broadcasting satellite and radar communication, this paper proposes structure a Radio Frequency Micro-Electro-Mechanical-Systems (RF MEMS) switch in X (S-12GHz) band that operates on basis metal-to-metal contact configuration. The pull-in voltage is main indicator power consumption, great challenge RF MEMS design conflict between high reliability. Therefore, designs an with spring-ring...

The variation of mutual inductance and load parameters will affect the transmission power efficiency inductive transfer (IPT) system. identification is an essential part establishing a stable reliable IPT This paper presents joint method for LCC-S system, which does not require establishment primary secondary communication related control. Firstly, resistance-inductance characteristics equivalent rectifier are analyzed by simulation, then system to circuit model resistance in series....

This paper presents an active islanding detection method based on injecting adaptive current disturbance according to the amplitude of voltage at point common coupling (PCC) detected after occurred reduce inverter's output current. According PCC islanding, resistance value load can be obtained. Then relationship between minimum which trigger protection and is deduced. The required adaptively added inverter voltage. As a result, power failure without non-detection zone (NDZ). IEEE Std.1547.1...

The angle measurement technology is very important in precision manufacture, optical industry, aerospace, aviation and navigation, etc. Further, the encoder, which uses concept 'subdivision of full circle (2π rad=360°)' transforms into number electronic pulse, most common instrument for measurement. To improve accuracy a novel self-calibration method was proposed that enables encoder to calibrate itself without reference. An deviation curve among 0° 360° simulated with equal weights Fourier...

Modern infrastructure networks are often coupled together and thus could be modeled as interdependent networks. Overload effect make more fragile when suffering from attacks. Therefore, we propose a load distribution node backup strategy for the cascading failures in network. The of failed due to overload is allocated other function nodes which connected it whole backed up, remaining capacity up fixed. As failure spreads network, compared after analyzing number nodes, scale cost required...

Summary Rectifier load in inductive power transfer system has nonlinear characteristics. However, the traditional analysis method equates it to a pure resistor, which leads certain deviation between theoretical and actual circuit. This will reduce accuracy of (IPT) model affect soft switching operation inverter. In this paper, IPT with S‐type topology on secondary side is studied. Firstly, resistance–inductance characteristics rectifier are analyzed by simulation, then second‐order circuit...

The variation of mutual inductance and load parameters will affect the transmission power efficiency inductive transfer (IPT) system. identification is an essential part establishing a stable reliable IPT This paper presents joint method for LCC-S system, which does not require establishment primary secondary communication related control. Firstly, resistance-inductance characteristics equivalent rectifier are analyzed by simulation, then system to circuit model resistance in series....

To realize the precise application of controllable reactors in power systems,research on characteristics is essential. A high-temperature superconducting leakage flux-controlled reactor (HTS-LFCR) based principle a high-leakage reactance transformer was proposed our previous research. In this article, with development and testing 380-V prototype an HTS-LFCR, HTS-LFCR are thoroughly studied. The detailed electromagnetic design introduced. As works at various voltages, basic characteristics,...

Based on STC89C52 series single-chip and photosensitive sensor, the intelligent vehicle can sense direction of signal light drive towards to it. Moreover, car prevent itself from crashing barrier by using an ultrasonic module. Motors are controlled PWM wave function. This design judge state send corresponding instructions control car. Last but not least, circuit wafers was designed Altuim designer program Keil uVision4.

The zero-voltage switching of the inductive power transfer system can reduce inverter loss and improve transmission efficiency system. soft characteristics are usually affected by parameters equivalent input impedance rectifier. However, existing research on parameter design LCC-S topology only regards rectifier back end as a pure resistance, which reduces accuracy circuit model. Based IPT system, this paper first reveals fact that load contains inductance components, then explores variation...

In this paper, based on the discrete sliding mode controlling theory, a steady active power regulator of paralleled bi-generator system in watercraft station is designed. And, mechanic shift convergent rule analyzed and relative algorithm improved, which increases velocity by adopting an attenuation coefficient. With limitary uncertain factors, close-loop always stable robustness its parameters can be regulated according to avoid chattering, as well increase dynamic quality system. Finally,...

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This article focuses on the self- and mutual inductance variation of a coupler with ferrite in an Inductive Power Transfer (IPT) system. The mechanism was analyzed using magnetic field splitting method, revealing that varying reluctance leads to variability. Additionally, trends were explored by Finite Element Analysis (FEA), based which input angle voltage gain LCC-S type IPT system calculated when misalignment occurred. Then, adjustment frequency tracking compound control method designed...

2D motion platform plays an essential role in automatic optical inspection (AOI) system, whose speed and positioning accuracy directly determine the accuracy, efficiency stability of system. Conventional PID control is not able to meet demands high precision, performance requirements so on. This paper proposes whole closed-loop algorithm, which a new algorithm achieve quick dynamic response small tracking error simultaneously. According actual model Matlab/Simulink simulation, series...

This paper concerns the mathematical model and simulation of forces on Mie micro-particles in laser trap. To make models suitable for particles with arbitrary shape, surface particle is divided into many microplanes, then radiation pressure resulting from interaction between a single incident light micro-plane individual ray tracing obtained using geometrical optical theory. A computer program based this designed to calculate trapping force shape (sphere, cone, polyhedron smooth surface).The...

In order to solve the equivalent inductance calculation problem caused by rectifier which AC side connected LCL resonant converter, a power factor method for converter is proposed. Based on analysis of working state critical conduction mode (CRM) mathematical model input voltage and current proposed in form differential equation. And fundamental value parallel capacitor used approximate its actual value. The can be calculate CRM converter. then it design accurately so that works close unity...

Stress calculation is a key link in evaluating whether the structure of superconducting magnet safe. A 35-kV/3.5-MVA single-phase high temperature superconductivity-controllable reactor (HTS-CR) with HTS winding wound by double pancakes being developed. The effect on local stress and rise pancakes, which determines design strengthening pancake, studied this paper. Furthermore, multiprocess development for from manufacturing to power-on also investigated, discloses model results calculation....