Results 91 to 100 of about 94,443 (230)

Kontrol Angle of Attack untuk Optimasi Daya padaVertical Axis Wind Turbine Tipe Darrieus

open access: yesJurnal Elkomika, 2020
ABSTRAK VAWT (Vertical Axis Wind Turbine) tipe Darrieus NACA0015 merupakan salah satu model dari turbin angin yang bekerja dengan menggunakan angin sebagai sumber penggerak. Namun dari hasil pengamatan, kecepatan angin yang ada tidak konstan setiap saat.
WAHYU AULIA NURWICAKSANA   +3 more
doaj   +1 more source

Paracamallanus cyathopharynx (Baylis, 1923) Infection in Clarias gariepinus (Burchell, 1822): Linking the Morphology of Wound‐Inflicting Structures to Histopathology

open access: yesJournal of Fish Diseases, EarlyView.
ABSTRACT Paracamallanus cyathopharynx (Baylis, 1923) specimens were collected from the rectum of the African sharptooth catfish, Clarias gariepinus in Lake Heritage, Crocodile River in the Limpopo River system and in the Vaal River below the Vaal Dam. Attached and unattached parasites were studied with light and scanning electron microscopy along with ...
Thabo Kenneth Matea   +1 more
wiley   +1 more source

Secret Key Generation Based on AoA Estimation for Low SNR Conditions

open access: yes, 2014
In the context of physical layer security, a physical layer characteristic is used as a common source of randomness to generate the secret key. Therefore an accurate estimation of this characteristic is the core for reliable secret key generation ...
Badawy, Ahmed   +5 more
core   +1 more source

Animal fluency in people with Parkinson's disease: Item‐based performance before and after deep brain stimulation surgery

open access: yesJournal of Neuropsychology, EarlyView.
Abstract People with Parkinson disease (PD) after surgery for deep brain stimulation (DBS) of the subthalamic nucleus (STN‐DBS) often decline in animal fluency due to impairments in executive functions and/or language. Item‐based measures of animal fluency may shed light on the specific nature of this decline, and into the strategies used when ...
Adrià Rofes   +6 more
wiley   +1 more source

“Ca. Nitrosocosmicus” members are the dominant archaea associated with plant rhizospheres

open access: yesmSphere
Archaea catalyzing the first step of nitrification in the rhizosphere possibly have an influence on plant growth and development. In this study, we found a distinct archaeal community, dominated by ammonia-oxidizing archaea (AOA), associated with the ...
Ui-Ju Lee   +10 more
doaj   +1 more source

Stratospheric age of air variations between 1600 and 2100

open access: yesGeophysical Research Letters, 2016
The current understanding of preindustrial stratospheric age of air (AoA), its variability, and the potential natural forcing imprint on AoA is very limited.
S. Muthers   +6 more
doaj   +1 more source

Anhydrous minerals in asteroid Bennu: Evidence for well‐preserved primordial components

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract Aqueously altered carbonaceous astromaterials are dominated by secondary minerals, but a minor fraction of primary, anhydrous silicates and oxides escape alteration, offering insight into the original composition of asteroid parent bodies. We report the mineralogy, petrology, mineral chemistry, and oxygen isotopes of anhydrous minerals—50 ...
S. S. Russell   +23 more
wiley   +1 more source

Adaptive traits of Nitrosocosmicus clade ammonia-oxidizing archaea

open access: yesmBio
Nitrification is a core process in the global nitrogen (N) cycle mediated by ammonia-oxidizing microorganisms, including ammonia-oxidizing archaea (AOA) as a key player.
Saem Han   +11 more
doaj   +1 more source

Spatiotemporal Modeling and Composite Indices for Pandemic Preparedness: A Novel Geospatial‐Temporal Approach

open access: yesGeographical Analysis, Volume 58, Issue 3, July 2026.
ABSTRACT This study proposes a geographically and temporally weighted random forest (GTWRF) model for explanatory spatiotemporal analysis of COVID‐19 outcomes. GTWRF extends the conventional geographically weighted random forest by incorporating spatial and temporal dependencies through an adaptive Gaussian weighting scheme.
Hassan K. Ajulo   +3 more
wiley   +1 more source

Vertical segregation and phylogenetic characterization of ammonia-oxidizing bacteria and archaea in the sediment of a freshwater aquaculture pond

open access: yesFrontiers in Microbiology, 2016
Pond aquaculture is the major freshwater aquaculture method in China. Ammonia-oxidizing communities inhabiting pond sediments play an important role in controlling culture water quality.
Shimin eLu   +10 more
doaj   +1 more source

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