Results 21 to 30 of about 16,016 (218)

Identification of possible cow grazing behaviour indicators for restricted grass availability in a pasture-based spring calving dairy system [PDF]

open access: yes, 2018
peer-reviewedPrecision livestock farming uses biosensors to measure different parameters of individual animals to support farmers in the decision making process.
Geoghegan, Anne   +8 more
core   +1 more source

Linear active disturbance rejection control of waste heat recovery systems with organic Rankine cycles [PDF]

open access: yes, 2012
In this paper, a linear active disturbance rejection controller is proposed for a waste heat recovery system using an organic Rankine cycle process, whose model is obtained by applying the system identification technique.
Fang Fang   +5 more
core   +2 more sources

Disturbance Rejection Attitude Control for a Quadrotor: Theory and Experiment

open access: yesInternational Journal of Aerospace Engineering, 2021
In this article, an attitude tracking controller is designed for a quadrotor unmanned aerial vehicle (UAV) subject to lumped disturbances. Firstly, the attitude dynamical model of the quadrotor under external disturbances is established. Subsequently, an
Li Ding   +3 more
doaj   +1 more source

Single Current Feedback Control Strategy of an LCL Grid-Connected Inverter Based on GI-ESO and Delay Compensation

open access: yesEnergies, 2022
This paper presents a new control structure to improve the performance of LCL grid-connected inverters. First, the conventional linear extended state observer (LESO) has difficulty rejecting periodic disturbances, so the proposed method adds an internal ...
Danyun Li, Dashuang Zhao
doaj   +1 more source

Palladium nanoparticles: Toxicological effects and potential implications for occupational risk assessment [PDF]

open access: yes, 2018
The increasing technological applications of palladium nanoparticles (Pd-NPs) and their consequent enhancing release into the community and occupational environments, have raised public health concerns regarding possible adverse effects for exposed ...
Iavicoli, Ivo, Leso, Veruscka
core   +2 more sources

Optimized office lighting advances melatonin phase and peripheral heat loss prior bedtime

open access: yesScientific Reports, 2022
Improving indoor lighting conditions at the workplace has the potential to support proper circadian entrainment of hormonal rhythms, sleep, and well-being.
Marta Benedetti   +4 more
doaj   +1 more source

Experimental assessment of bi-directional transmission distribution functions using digital imaging techniques [PDF]

open access: yes, 2005
Many daylighting applications require a precise knowledge of the directional transmission features of advanced fenestration materials. These photometric properties are described by a bi-directional transmission distribution function (BTDF), whose ...
Andersen, Marilyne   +3 more
core   +1 more source

A Camera Stabilized Platform Based on the Feedforward Strap-Down Control with Approximate Dead-Zone Model and a Compensator with LESO

open access: yesMachines, 2023
A feedforward strap-down control with a compensator base on the linear extended state observer (LESO) is proposed for a miniaturized camera stabilized platform, which reduces the influence of the dead zone in speed regulation and uncertainties in ...
Tianlei Fu   +3 more
doaj   +1 more source

Newspaper of the university of alaska southeast juneau campus [PDF]

open access: yes, 1989
Battered budget becomes reality -- Commencement May 5 -- Plane crash claims life of student/pilot Al McClure -- Juneau's Folk Festival includes all folks -- Jazz greats, near-greats join in Juneau music event -- History class journeys back with Father ...

core   +3 more sources

Linear Active Disturbance Rejection Control for DC Bus Voltage Under Low-Voltage Ride-Through at the Grid-Side of Energy Storage System

open access: yesEnergies, 2020
The energy storage inverter system has the characteristics of nonlinearity, strong coupling, variable parameters, and flexible mode switching between parallel and off grid.
Youjie Ma   +5 more
doaj   +1 more source

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