Results 81 to 90 of about 9,715,056 (293)

Ultra‐Radiostable Covalent Conformationally Interlocked Networks Enabling a Universal Radiometal‐Labeling Platform for Cancer Radioembolization

open access: yesAdvanced Science, EarlyView.
Conjugated poly(imide dioxime)‐based microspheres establish a radiometal coordination‐driven conformational interlocked network with ultra‐high radiostability. This platform enables low‐temperature, multi‐radionuclide labeling for SPECT/PET/MRI imaging and radionuclide therapy. Mechanistic insights from EXAFS and DFT reveal enhanced stability, while in
Xiao Xu   +10 more
wiley   +1 more source

Research on buck converter based on digital PID switching control

open access: yesDianzi Jishu Yingyong, 2019
In order to improve the steady-state performance of DC-DC converters, a digital PID switching control technology is proposed. Different from traditional digital PID control technology, it switches the PID control by comparing the voltage error value with
Wu Zhiqiang, Yu Lianzhi, Kong Mengjun
doaj   +1 more source

Controle PID preditivo para plantas com atraso de transporte: estudo de caso em um laminador [PDF]

open access: yes, 2004
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-graduação em Engenharia Elétrica.Os controladores PID (proporcional, integral e derivativo) avançados são controladores compostos de estrutura PID, cujos
Oliveira, Marcos Afonso
core  

Prediction of PID control model on PLC [PDF]

open access: yes, 2019
PID (Proportional Integral Derivative) is a control algorithm that mostly used in industry. However, users have never known what the PID model that used inside the PLC. By knowing the PID model that used in PLC, users will have more choice in determining
Sarjono, T. Rudi; Universitas Kristen Maranatha   +2 more
core   +1 more source

A Smart Fluid‐Hydraulic System Based on MRF Valve Control and Its Application in Flexible Grasping

open access: yesAdvanced Science, EarlyView.
This study introduces a smart fluid hydraulic system using MRF valve control for flexible gripping. An MRF‐MSV with an integrated excitation coil and micro‐textured damping channels is designed and validated; micro‐texturing increases hydraulic resistance. Coupled with a soft actuator, the MRF‐MSV enables dynamic bending and grasping.
Linfeng Huo   +5 more
wiley   +1 more source

Nanoparticle‐Mediated Bubble Suppression During Droplet Solidification for Mechanical Reinforcement

open access: yesAdvanced Science, EarlyView.
Nanoparticles mediate droplet solidification by raising nucleation temperature, refining dendrites, and slowing freezing‐front advance, thereby suppressing trapped air bubbles in droplet‐based 3D printing. This strategy reduces bubble volume fraction by ∼35% and increases compressive strength by up to 39%, offering a low‐cost route to stronger printed ...
Runmiao Gao   +10 more
wiley   +1 more source

Optimizing stability bounds of finite-precision PID controller structures [PDF]

open access: yes, 1999
The paper investigates a recently derived lower bound stability measure for sampled-data controller structures subject to finite-word-length (FWL) constraints. The optimal realization of the digital PID controller with FWL considerations is formulated as
Chu, J.   +3 more
core   +2 more sources

Rancang Bangun Prototipe Sistem Otomatisasi Pengereman Elektromagnetik Berbasis Mikrokontroler Dengan Kontrol PID

open access: yesJITCE (Journal of Information Technology and Computer Engineering), 2018
Braking Automation system is needed to make people do their job in braking while driving. This paper aims to design and construct an electromagnetic braking automatic system that able to make car stopped before colliding a barrier by applying of the ...
Mohammad Hafiz Hersyah   +2 more
doaj   +1 more source

Robust tuning of PI/PID controllers using H∞ control technique [PDF]

open access: yes, 2005
In many real world control problems, it is usually desirable to meet specified control goals using controllers with simple structures like as proportional-integral (PI) and proportional-integral-derivative (PID) which are useful in industry applications.
Bevrani, Hassan, Hiyama, Takashi
core  

Revealing the Nanoscale Morphology Changes of Polymer Electrolyte Membrane Fuel Cell Catalyst Layers due to Conditioning

open access: yesAdvanced Science, EarlyView.
We apply ex situ and in situ scanning transmission X‐ray microscopy to reveal the structural degradation of polymer electrolyte membrane fuel cell catalyst layers due to conditioning and thermal heating of the catalyst coated membrane. We observe a redistribution of the ionomer and carbon‐black in the catalyst layer, as well as nanoscale membrane ...
Spencer Lytle   +4 more
wiley   +1 more source

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