Results 131 to 140 of about 37,119 (308)

Study of fuzzy PID controller for velocity circuit of optical-electronic theodolite

open access: yes, 2017
Two-axis stabilized turntable is an important part of optical-electronic theodolite, it carries various of measuring instruments. In order to improve the response speed of the optical-electronic theodolite when tracking high speed target.
GengXin Li   +5 more
core   +1 more source

Design of discrete PI‐PR2 controllers for time‐delayed systems using dominant pole placement method

open access: yesAsian Journal of Control, EarlyView.
Abstract This paper presents a new controller structure known as the proportional‐integral proportional‐double‐retarded (PI‐PR2) designed for discrete‐time systems with time delay. The dominant pole placement technique, which is frequently encountered in control systems, is used as the primary design method. The design method starts that dominant poles
Ayşe Duman Mammadov   +2 more
wiley   +1 more source

Control Quality Improvement for Crane System by New PID puzzy

open access: yesTạp chí Khoa học Đại học Mở Thành phố Hồ Chí Minh - Kỹ thuật và Công nghệ, 2011
The paper given mathematical model, design and selected parameters of new PID Fuzzy controller to control crane system. Research the influence of the parameters in new PID Fuzzy controller with the desire to oscillate of load reduction and applicability ...
Nguyễn Văn Minh Trí   +2 more
doaj  

Optimal finite-precision state-estimate feedback controller realizations of discrete-time systems

open access: yes, 2000
This paper investigates the stability issue of a discrete-time control system, where a state-estimate feedback controller (SEFC), digitally implemented with fixed-point format, is used.
Li, G., Chu, J., Wu, J., Chen, S.
core  

Dynamic, Unconstrained Optimization of Secreted Enzyme Production in Fed‐Batch Fermentation Using Reinforcement Learning

open access: yesBiotechnology and Bioengineering, EarlyView.
ABSTRACT Reinforcement learning (RL) has been used to control a wide range of dynamic processes, especially ones that are too complex to model well or have stochastic environmental perturbations. Fed‐batch fermentations are subject to changes in starting cell growth rates and process variations that can affect cell growth and secreted target production.
Sai Harish Uthravalli   +3 more
wiley   +1 more source

Beyond the ESG Facade: Measuring and Addressing Corporate ‘Lip Service’

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Amid growing global attention to environmental, social and governance (ESG), this study examines the misalignment between ESG disclosures and actual practices—termed ‘lip service’—using data from Chinese firms from 2006 to 2022, constructing an index to quantify it.
Jia Xu, Mingwei Liu, Helen X. H. Bao
wiley   +1 more source

Key Challenges for Commercializing Perovskite–Silicon Tandem Solar Cells

open access: yesCarbon Energy, EarlyView.
This review discusses the scientific and technological challenges in advancing perovskite–silicon tandem solar cells (PSTSCs) from lab‐scale to commercial viability, focusing on long‐term stability, scalability, and economic feasibility. Key issues include intrinsic and extrinsic degradation factors, installation conditions, environmental impacts, and ...
Bilal Mehmood   +16 more
wiley   +1 more source

Design of a cognitive neural predictive controller for mobile robot

open access: yes, 2012
This thesis was submitted for the degree of Doctor of Philosophy and was awarded by Brunel UniversityIn this thesis, a cognitive neural predictive controller system has been designed to guide a nonholonomic wheeled mobile robot during continuous and non ...
Al‐Araji, Ahmed
core  

Carbon monoxide adsorption on NaY zeolite and impregnated with 5% niobium: Characteristics and fixed‐bed study

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Schematic of the CO adsorption process in a fixed‐bed column containing pure NaY zeolite and Nb‐modified NaY (NaY–5%Nb). On the left, breakthrough curves and temperature profiles highlight the dynamic performance and thermal effects during CO adsorption.
Elson Oliveira   +3 more
wiley   +1 more source

PID Control: 5. Engineering of PID Control.

open access: yesJournal of The Society of Instrument and Control Engineers, 1998
FUJIWARA, Toshitaka   +2 more
openaire   +1 more source

Home - About - Disclaimer - Privacy