Results 41 to 50 of about 6,691,435 (302)

Exact and positive controllability of boundary control systems

open access: yesNetworks & Heterogeneous Media, 2017
Using the semigroup approach to abstract boundary control problems we characterize the space of all exactly reachable states. Moreover, we study the situation when the controls of the system are required to be positive. The abstract results are applied to flows in networks with static as well as dynamic boundary conditions.
ENGEL, KLAUS JOCHEN OTTO   +1 more
openaire   +5 more sources

Improved Altitude Control Algorithm for Quadcopter Unmanned Aerial Vehicles

open access: yesApplied Sciences, 2019
Quadcopter unmanned aerial vehicles continue to play important roles in several applications and the improvement of their control performance has been explored in a great number of studies.
Nguyen Xuan-Mung, Sung-Kyung Hong
doaj   +1 more source

Adaptive position control loop [PDF]

open access: yes, 1972
Design of attitude control system for a sounding rocket is established by using a control loop which incorporates a lead network to convert position output into a feedback signal that is approximately proportional to position, plus a constant times ...
Keltz, W. L.
core   +1 more source

Positioning, Structuring and Controlling with Nanoprecision [PDF]

open access: yes, 2010
Key industries such as the automotive, electronic, medical and laboratory technical industries have continually rising demands for precise manufacturing, handling and control techniques. This is true for the manufacture of injection nozzles for engines as indeed also for the irradiation of extremely fine wafer structures and in the field of scanning ...
Hedderich, R.   +4 more
openaire   +1 more source

Why and When Are Evidence‐Based Interventions Adopted in Paediatric Supportive Care? A Qualitative Exploration of the Determinants of Photobiomodulation Implementation

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Oral mucositis is a common and debilitating side effect of childhood cancer and stem cell transplant treatments. It affects the quality of life of children and young people (CYP) and places a strain on services. Photobiomodulation is recommended for oral mucositis prevention in international guidance but is poorly implemented in UK ...
Claudia Heggie   +4 more
wiley   +1 more source

Aircraft control position indicator [PDF]

open access: yes, 1987
An aircraft control position indicator was provided that displayed the degree of deflection of the primary flight control surfaces and the manner in which the aircraft responded.
Dennis, Dale V.
core   +1 more source

Central controller for hybrid control over network [PDF]

open access: yes, 2009
In this paper, a central controller for position/force hybrid control over network is proposed. In the proposed method, the central controller receives position and force information from each plant.
Ohnishi, Kouhei   +3 more
core   +1 more source

Clinical Insights Into Hypercalcemia of Malignancy in Childhood

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Hypercalcemia of malignancy (HCM) is a rare but life‐threatening metabolic emergency in children that occurs in less than 1% of pediatric cancer cases, with a reported incidence ranging from 0.4% to 1.0% across different studies. While it is observed in 10%–20% of adult malignancies, pediatric HCM remains relatively uncommon.
Hüseyin Anıl Korkmaz
wiley   +1 more source

Design a Position Control of the Blade Pitch Angle for Variable Speed Wind Turbine Generators [PDF]

open access: yesEngineering and Technology Journal, 2009
Variable speed wind turbine generators are more powerful than constantspeed turbines. However the unstable wind speed causes the variable speed machine to have variable voltage and frequency.
Roshen T. Ahmed
doaj   +1 more source

POSITION CONTROL OF VTOL SYSTEM USING ANFIS VIA HARDWARE IN THE LOOP

open access: yesJurnal Ilmiah SINERGI, 2021
Electric motors have been widely applied in various equipment. One application is found in Unmanned Aerial Vehicles (UAVs). An electric motor speed control system that can balance the aircraft's position is one of the mandatory features that must be ...
Hari Maghfiroh   +2 more
doaj   +1 more source

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