Results 81 to 90 of about 3,566,556 (147)

A Loop All-Fiber Current Sensor Based on Single-Polarization Single-Mode Couplers

open access: yesSensors, 2017
Low current sensitivity and insufficient system stability are two key problems in all-fiber current sensor (AFCS) studies. In order to solve the two problems, a novel AFCS combining single-polarization single-mode (SPSM) couplers and a loop structure is ...
Hao Zhang   +6 more
doaj   +1 more source

Optimizing Internet of Things Fog Computing: Through Lyapunov-Based Long Short-Term Memory Particle Swarm Optimization Algorithm for Energy Consumption Optimization

open access: yesSensors
In the era of continuous development in Internet of Things (IoT) technology, smart services are penetrating various facets of societal life, leading to a growing demand for interconnected devices.
Sheng Pan   +5 more
doaj   +1 more source

A Review of Research Progress on Intelligent Cyclone–Filtration-Integrated Equipment for High-Suspended-Solids Mine Water Treatment

open access: yesSeparations
Mine water treatment remains a long-term challenge due to high suspended solids, wide particle size distributions, and inflow variability, all of which stress solid–liquid separation systems.
Shengbing Xiao, Lixin Li
doaj   +1 more source

Improving Angle Stability by Switching Shunt Reactors in Mixed Overhead Cable Lines. An Italian 400 kV Case Study

open access: yesEnergies, 2019
Stringent environmental constraints make the construction of new transmission overhead lines more and more difficult. Alternatively, today it is possible to use cable lines for high (HV) and extra-high (EHV) voltage systems.
Mariano Giuseppe Ippolito   +2 more
doaj   +1 more source

Optimizing adaptability and rational control strategies for cyclogyro systems

open access: yesАвіаційно-космічна техніка та технологія
The cyclogyro, due to its potential applications in aviation and complex dynamic characteristics, has become the focus of our research. Although traditional PID control is effective in many cases, it may struggle in handling the complex nonlinear ...
Sibei Wei
doaj   +1 more source

Multi-Objective Short-Term Operation of Hydro–Wind–Photovoltaic–Thermal Hybrid System Considering Power Peak Shaving, the Economy and the Environment

open access: yesEnergies
In recent years, renewable, clean energy options such as hydropower, wind energy and solar energy have been attracting more and more attention as high-quality alternatives to fossil fuels, due to the depletion of fossil fuels and environmental pollution.
Yongqi Liu   +3 more
doaj   +1 more source

Poppet valve control of throat stability bypass to increase stable airflow range of a Mach 2.5. inlet with 60 percent internal contraction [PDF]

open access: yes
The throat of a Mach 2.5 inlet with a coldpipe termination was fitted with a stability-bypass system. System variations included several stability bypass entrance configurations. Poppet valves controlled the bypass airflow. The inlet stable airflow range
Mitchell, G. A., Sanders, B. W.
core   +1 more source

Bifurcation from semi-trivial standing waves and ground states for a system of nonlinear Schr\"{o}dinger equations

open access: yes, 2011
We consider a system of nonlinear Schr\"{o}dinger equations related to the Raman amplification in a plasma. We study the orbital stability and instability of standing waves bifurcating from the semi-trivial standing wave of the system.
Colin, Mathieu, Ohta, Masahito
core   +1 more source

On the stability of relativistic systems [PDF]

open access: yesThe Astrophysical Journal, 1975
Schutz, B., Friedman, J.
openaire   +2 more sources

On Stability in Control Systems [PDF]

open access: yesJournal of the Society for Industrial and Applied Mathematics Series A Control, 1965
openaire   +1 more source

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