Results 21 to 30 of about 233 (108)

Deciphering the Evolution Pattern of Structural Variations Overlapped With Repetitive Sequence During Cattle Evolution

open access: yesAdvanced Science, EarlyView.
The authors complement bovine pan‐SV with massive novel structural variations (SVs) identified through long‐read sequencing of 83 globally distributed cattle breeds. Repetitive sequence‐mediated SVs (rep‐SV) exhibit distinct dynamic patterns throughout cattle sub‐speciation and/or domestication processes, including uneven distribution between chr‐X and
Zhifan Guo   +16 more
wiley   +1 more source

ВИЗНАЧЕННЯ ТЕМПЕРАТУРИ IGBT МОДУЛЯ ПЕРЕТВОРЮВАЧА ЧАСТОТИ ПРИ ПУСКУ АСИНХРОНОГО ДВИГУНА [PDF]

open access: yes, 2013
The most effective and economical way to a smooth start and control the rotor speed of the induction motor is to change the frequency of the voltage supply.
Kritska, T. V., Ostrenko, V. S.
core   +3 more sources

Bioinspired Adaptive Leg‐Claw Enables Robust Perching and Grasping for UAVs

open access: yesAdvanced Science, EarlyView.
Inspired by owl limb morphology and bat roosting behavior, this study presents a bioinspired adaptive leg‐claw mechanism that enables UAVs to perform robust and versatile perching and grasping. The design integrates a four‐link tibial structure, tension‐driven deformable feet, and active control, enabling stable perching on various branches and ...
Tianyu Cheng   +6 more
wiley   +1 more source

Double star PM machine. Mathematical modelling, simulation and control [PDF]

open access: yes, 2016
LAUREA MAGISTRALEThe thesis work presented deals with electrical machine with phases greater than 3 and this thesis is presented especially with the approach to mathematically model a ‘Double Star Electrical Motor’.
SHABBIR, ARSLAN
core  

Model‐Inversion‐Resistant Physical Unclonable Neural Network Using Vertical NAND Flash Memory

open access: yesAdvanced Science, EarlyView.
Schematic and key features of the proposed forward‐forward physical unclonable neural network (FF‐PUNN), incorporating a concealable physical unclonable function (PUF) layer and forward‐forward (FF) learning. ABSTRACT The growing use of neural networks in privacy‐sensitive applications necessitates architectures that inherently protect both data and ...
Sung‐Ho Park   +8 more
wiley   +1 more source

Основи схемотехніки електронних систем [PDF]

open access: yes, 2008
Basics of circuitry are stated, principles of operation are considered, it is given calculations of analog, digital and pulse devices of electronic systems, based on semiconductor devices, integrated operational amplifiers and integrated logic circuits ...
Boyko, Vitaliy Ivanovich   +11 more
core  

A Neural Network‐Based Self‐Sensing Embedded Position Control System for Shape Memory Alloy Wire Actuators

open access: yesAdvanced Intelligent Systems, EarlyView.
Shape memory alloy wires exhibit thermally induced phase changes that generate actuation strain and resistance variations enabling self‐sensing. However, hysteretic electromechanical behavior complicates accurate state estimation. This paper presents an artificial in‐based self‐sensing method to reconstruct SMA actuator position in real time, achieving
Krunal Koshiya   +2 more
wiley   +1 more source

Optimization of Energy Efficiency in Photovoltaic Water Pumping Systems Using Neural Networks

open access: yesEnergy Science &Engineering, EarlyView.
This study investigates an optimal control strategy for a photovoltaic (PV) water pumping system aimed at improving efficiency and autonomy in off‐grid applications. The system uses an induction motor with direct torque control and compares three maximum power point tracking (MPPT) techniques: neural network–based MPPT, Incremental Conductance (IC ...
Sihem Ghoudelbourk   +3 more
wiley   +1 more source

Mechanism and Control Analysis of Synchronous Frequency Resonance in Distributed Power Generation System Connected to Grid

open access: yesEnergy Science &Engineering, EarlyView.
Small‐signal modeling reveals that insufficient system damping positions conjugate poles near the imaginary axis, fundamentally explaining the SFR mechanism. A virtual resistance control is consequently proposed to damp the resonance and effectively suppress SFR, which is validated through Hardware‐in‐the‐Loop experiments.
Yujie Gu   +3 more
wiley   +1 more source

The Feasibility Study of Using Space Vector Modulation Inverters in Two-Level of Integrated Photovoltaic System [PDF]

open access: yes, 2015
In this paper a system of integrated photovoltaic converter with vector switching control inverter with the modulation method of spatial two-level has been presented.
Payedar, Amin, Zadehbagheri, Mahmoud
core   +1 more source

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