Results 61 to 70 of about 453,479 (202)

Active disturbance rejection switching control of quadrotor based on robust differentiator

Systems Science & Control Engineering, 2020
To solve the problem of trajectory tracking control of a quadrotor unmanned aerial vehicle (UAV) under white noise disturbance, a new active disturbance rejection control (ADRC), an active disturbance rejection switching control (ADRSC) algorithm of the ...
Jiawei Zhao, Hongli Zhang, Xinkai Li
doaj   +1 more source

Grassland Plant Composition Alters Vehicular Disturbance Effects in Kansas, USA [PDF]

, 2008
Many ‘‘natural’’ areas are exposed to military or recreational off-road vehicles. The interactive effects of different types of vehicular disturbance on vegetation have rarely been examined, and it has been proposed that some vegetation types are less ...
Busby, Ryan, Dickson, Timothy, Gebhart, Dick, Wilsey, Brian, Wilsey, Brian   +4 more
core   +3 more sources

Acid–base disturbances in intensive care patients: etiology, pathophysiology and treatment [PDF]

Nephrology Dialysis Transplantation, 2014
Acid-base disturbances are very common in critically ill and injured patients as well as contribute significantly to morbidity and mortality. An understanding of the pathophysiology of these disorders is vital to their proper management. This review will discuss the etiology, pathophysiology and treatment of acid-base disturbances in intensive care ...
Mohammed, Al-Jaghbeer, John A, Kellum
openaire   +2 more sources

High species richness of sheep‐grazed sand pastures is driven by disturbance‐tolerant and weedy short‐lived species

Ecology and Evolution
We selected 15 sheep‐grazed sand pastures along a gradient of increasing grazing intensity to study the fine‐scale patterns of main biomass fractions (green biomass, litter) and that of plant species and functional groups (life forms and social behaviour
Gergely Kovacsics‐Vári, Judit Sonkoly, Katalin Tóth, Andrea McIntosh‐Buday, Patricia Elizabeth Díaz Cando, Viktória Törő‐Szijgyártó, Nóra Balogh, Luis Roberto Guallichico Suntaxi, Francis David Espinoza Ami, Gábor Matus, Béla Tóthmérész, Péter Török   +11 more
doaj   +1 more source

Forest Net Primary Production Resistance Across a Gradient of Moderate Disturbance [PDF]

, 2014
The global carbon (C) balance is vulnerable to disturbances that alter terrestrial C uptake and loss. Moderate disturbances that kill or defoliate only a subset of canopy trees such as insect defoliation, drought, and age-related senescence are ...
Goodrich-Stuart, Ellen
core   +1 more source

Exact regularized point particle method for multi-phase flows in the two-way coupling regime [PDF]

, 2014
Particulate flows have been largely studied under the simplifying assumptions of one-way coupling regime where the disperse phase do not react-back on the carrier fluid.
Casciola, C. M., Gualtieri, P., Picano, F., Sardina, G.   +3 more
core   +2 more sources

[Acid-base disturbances in intensive-care patients].

Tidsskrift for den Norske laegeforening : tidsskrift for praktisk medicin, ny raekke, 2010
Acid-base disturbances may cause a variety of symptoms, multi-organ failure and compromised immune defense. The aim of this paper is to provide an overview of acid-base disturbances in intensive-care patients.The article is based on a non-systematic search in Pub Med, a textbook on intensive care and the authors' clinical experience.The Henderson ...
Nils, Smith-Erichsen, Johan, Kofstad, Baard, Ingvaldsen   +2 more
openaire   +1 more source

Morphological Investigation of Disturbed Ionosphere during Intense Geomagnetic Storms

Journal of Physics: Conference Series, 2016
Geomagnetic Storms are the disturbed magnetic conditions, influenced and induced by Interplanetary Magnetic Field and the Charged Particle's motion around the Earth, respectively, in Geospace. As the ionosphere is woven by the earth's magnetic field it responds to the change in that.
Bhupendra Malvi, Prateek S. Srivastav, Azad A. Mansoori, Roshni Atulkar, Shivangi Bhardwaj, P. K. Purohit   +5 more
openaire   +1 more source

Spatial sampling of the thermospheric vertical wind field at auroral latitudes [PDF]

, 2011
Results are presented from two nights of bistatic Doppler measurements of neutral thermospheric winds using Fabry!Perot spectrometers at Mawson and Davis stations in Antarctica.
Anderson, Aruliah, Aruliah, Aruliah, Biondi, Burnside, C. Anderson, Chun, Conde, Conde, Conde, Conde, Conde, Conde, Cooper, Greet, Greet, Guo, Hunsucker, Innis, Innis, Innis, Ishii, Ishii, Ishii, Jones, Kosch, M. Conde, M. J. Kosch, P. Dyson, Picone, Price, Rees, Rishbeth, Sipler, Smith, Smith, Smith, Smith, Spencer, Spencer, T. Davies, Wardill, Østgaard   +43 more
core   +1 more source

Does degradation from selective logging and illegal activities differently impact forest resources? A case study in Ghana [PDF]

, 2016
Degradation, a reduction of the ecosystem’s capacity to supply goods and services, is widespread in tropical forests and mainly caused by human disturbance.
Cazzolla Gatti, R., Chiti, Di Paola, A., Grieco, E., Hawthorne Wd, Marconi, Noce, S., Pirotti, F., S., T., Vaglio Laurin, G., Valentini, Riccardo   +11 more
core   +1 more source