Results 61 to 70 of about 1,269,563 (195)

Anaerobic Downflow Stationary Fixed Film Reactors: Performance Under Steady-State and Non-Steady State Conditions

open access: yesWater Science and Technology, 1985
Performance of downflow stationary fixed film reactors depended on factors such as type of film support, film surface-to-volume ratio, height, temperature and fluid flow pattern. The downflow operation ensured the dilution of the waste as soon as it entered the reactor.
R Samson, K J Kennedy, L van den Berg
openaire   +1 more source

Performance of a Brayton power system with a space type radiator [PDF]

open access: yes
Test results of an experimental investigation to measure Brayton engine performance while operating at the sink temperatures of a typical low earth orbit are presented. The results indicate that the radiator area was slightly oversized.
Fenn, D. B., Nussle, R. C., Prok, G. M.
core   +1 more source

On-line Learning of an Unlearnable True Teacher through Mobile Ensemble Teachers

open access: yes, 2008
On-line learning of a hierarchical learning model is studied by a method from statistical mechanics. In our model a student of a simple perceptron learns from not a true teacher directly, but ensemble teachers who learn from the true teacher with a ...
Engel A.   +9 more
core   +1 more source

Steady-state modelling and performance of a rotary direct drive digital valve

open access: yesMeasurement + Control, 2020
A rotary direct drive digital valve driven by a stepper motor was proposed. By analysing its working principle, the steady-state mathematical model reflecting the relationship between the pressure, the flow and the angular displacement was deduced. Based
Yuesong Li
doaj   +1 more source

Steady-State Performance Analyses of Adaptive Filters

open access: yes, 2011
Adaptive filters have become a vital part of many modern communication and control systems, which can be used in system identification, adaptive equalization, echo cancellation, beamforming, and so on [l]. The least mean squares (LMS) algorithm, which is the most popular adaptive filtering algorithm, has enjoyed enormous popularity due to its ...
Lin, Bin, He, Rongxi
openaire   +3 more sources

Level of performance and stability of cardiopulmonary variables in the intensity of the ventilatory anaerobic threshold

open access: yesMotriz: Revista de Educacao Fisica, 2018
AIM The aim of this study was to describe the behavior of different cardiopulmonary variables in exercise session with constant running speed, corresponding to the intensity of ventilatory anaerobic threshold and identifying the steady state in a ...
Victor Hugo Gasparini Neto   +3 more
doaj   +1 more source

Steady state and transient performance of hot reservoir gas controlled heat pipes [PDF]

open access: yes
Inert gases for passive control of heat pipes in hot reservoir ...
Fleischman, G. L., Marcus, B. D.
core   +1 more source

Age and sex differences in human balance performance from 6-18 years of age: A systematic review and meta-analysis.

open access: yesPLoS ONE, 2019
BackgroundThe process of growing leads to inter-individual differences in the timing of growth, maturational, and developmental processes during childhood and adolescence, also affecting balance performance in youth.
Simon Schedler   +2 more
doaj   +1 more source

A Three-Vector Fast Model Predictive Control Method for Steady State Performance Improvement

open access: yesIEEE Access
A fast three-vector model predictive control method based on an improved H8 inverter is proposed for the Permanent Magnet Synchronous Motor (PMSM) driven by a two-level three-phase voltage source inverter.
Yongzhen Zhang   +5 more
doaj   +1 more source

Numerical simulation of self-field MPD thrusters [PDF]

open access: yes
A fully two dimensional magnetohydrodynamics code was developed to predict self-field, steady-state MPD thruster performance. The governing equations are outlined, and methods of solution are presented.
Lapointe, Michael R.
core   +1 more source

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