Results 21 to 30 of about 594,446 (272)

Loop stability analysis of boost circuit under globally dynamic compensation strategy

open access: yesThe Journal of Engineering, 2018
The PFC Boost converter controlled by the mode of CCM has strong non-linearity due to the use of non-linear elements such as power switch and multipliers.
Xiaofan Wang   +3 more
doaj   +1 more source

Design and Performance Optimization of a Wire-spring Based Planar Gravity Compensation Mechanism for a Robotic Arm [PDF]

open access: yes한국정밀공학회지
This study introduces a wire-spring based planar gravity compensation mechanism and evaluates its performance through both analysis and experiments. The mechanism features three pulleys, one spring, and one wire, all arranged in a planar configuration ...
Kyuna Park, Minhyo Kim, Sangrok Jin
doaj   +1 more source

A Novel Online Estimation and Compensation Method for Strapdown Phased Array Seeker Disturbance Rejection Effect Using Extended State Kalman Filter

open access: yesIEEE Access, 2019
The radome error and beam pointing error found commonly in the strapdown phased array radar seeker can cause coupling between the missile body motion and the seeker model, impacting the output precision of the seeker and causing the disturbance rejection
Shih-Yao Lin, Defu Lin, Wei Wang
doaj   +1 more source

Compensatory classification in spine sagittal malalignment with lumbar degeneration

open access: yesBMC Musculoskeletal Disorders, 2023
Objective To generate a compensatory classification to evaluate sagittal spinal malalignment with lumbar degeneration. Methods We included 162 patients with low back pain who underwent full-length spinal radiography in our hospital from August 2019 to ...
Yu Wang   +5 more
doaj   +1 more source

Evaluation of P-Band SAR Tomography for Mapping Tropical Forest Vertical Backscatter and Tree Height

open access: yesRemote Sensing, 2021
Low-frequency tomographic synthetic aperture radar (TomoSAR) techniques provide an opportunity for quantifying the dynamics of dense tropical forest vertical structures.
Naveen Ramachandran   +4 more
doaj   +1 more source

A Compensation Method for Variations in Subthreshold Slope and Threshold Voltage of Thin-Film Transistors for AMOLED Displays

open access: yesIEEE Journal of the Electron Devices Society, 2019
In this paper, we propose a compensation method for variations in the subthreshold slope (SS) and threshold voltage (Vth) of the low-temperature polycrystalline silicon thin-film transistors (LTPS TFTs) in an attempt to improve the image quality of the ...
Nack-Hyeon Keum   +3 more
doaj   +1 more source

A novel low-voltage current-limiting control strategy with improved voltage compensation

open access: yesEnergy Reports, 2023
By optimizing the design of the conventional low-voltage current limiting controller (VDCOL), the continuous commutation failure on the receiving end of the traditional LCC-HVDC transmission system is effectively suppressed.
Haitao Wu, Yunbin Li, Zhihe Wang
doaj   +1 more source

Design of a wide input range and high efficiency space secondary converter

open access: yesDianzi Jishu Yingyong
This article proposes a design method for a wide input voltage and high efficiency 100 W space secondary power supply. The input voltage range reaches 20 V~50 V, which can cover the voltage range of 28 V and 42 V buses on the satellite.
Li Shuanggang, Xu Huan, Cao Jiajun
doaj   +1 more source

Other title: BWC safety violations investigation unit : Summary of ... trends and strategies; Other title: Summary of ... trends and future strategies [PDF]

open access: yes, 2011
Annual; Ended with: Fiscal Year 2011."This summary report presents the condition of workers' compensation safety violation investigations in Ohio. The report reviews the BWC special investigations department (SID) safety violations investigation unit ...
Ohio. Bureau of Workers' Compensation. Safety Violations Investigation Unit,
core  

Guidelines for Pediatric Radiotherapy Simulation: A Report From the Children's Oncology Group Radiation Oncology Discipline

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric radiation therapy presents unique challenges compared to adult treatments, including those of immobilization, potential need for sedation, and the critical importance of accurate, reproducible positioning. Additionally, heightened attention to imaging doses is necessary to minimize long‐term toxicity in survivors.
Parham Alaei   +17 more
wiley   +1 more source

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