Results 61 to 70 of about 2,693,358 (411)

Control-Oriented Modeling and Layer-to-Layer Spatial Control of Powder Bed Fusion Processes [PDF]

open access: yesarXiv, 2023
Powder Bed Fusion (PBF) is an important Additive Manufacturing (AM) process that is seeing widespread utilization. However, due to inherent process variability, it is still very costly and time consuming to certify the process and the part. This has led researchers to conduct numerous studies in process modeling, in-situ monitoring and feedback control
arxiv  

Assessment of Temperature and Elevation Controls on Spatial Variability of Rainfall in Iran [PDF]

open access: yesAtmosphere, 2017
With rainfall changes, hydrological process variability increases. This study predicts the potential effects of temperature and topography characteristics on rainfall spatial variability. Temperature and topography were considered as two effective factors that may influence monthly rainfall.
openaire   +2 more sources

Managing Spatial and Temporal Variability in Irrigated Agriculture Through Adaptive Control [PDF]

open access: yesAustralian Journal of Multi-Disciplinary Engineering, 2009
Spatial variability in crop production occurs as a result of spatial and temporal variations in soil structure and fertility; soil physical, chemical and hydraulic properties; irrigation applications; pests and diseases; plant genetics; and local microclimate.
Smith, R. J.   +3 more
openaire   +1 more source

Whisker Movements Reveal Spatial Attention: A Unified Computational Model of Active Sensing Control in the Rat

open access: yesPLoS Comput. Biol., 2013
Spatial attention is most often investigated in the visual modality through measurement of eye movements, with primates, including humans, a widely-studied model.
B. Mitchinson, T. Prescott
semanticscholar   +1 more source

Gait characteristics of subjects with chronic fatigue syndrome and controls at self-selected and matched velocities [PDF]

open access: yes, 2008
Background: Gait abnormalities have been reported in individuals with Chronic Fatigue Syndrome (CFS) however no studies exist to date investigating the kinematics of individuals with CFS in over-ground gait.
Maclaren, W.   +3 more
core   +3 more sources

Factors Affecting Dissolved Oxygen at Bengawan Solo River: A Spatial Filtering with Eigenvector Technique [PDF]

open access: yes, 2021
The quality of the river changes according to the development of the surrounding environment which is influenced by various human activities. Analysis of factors affecting Dissolved Oxygen (DO) at Bengawan Solo River is crucial for river management ...
Arsad, Sulastri   +5 more
core   +2 more sources

Factors modulating 99mTc‐MAA planar lung dosimetry for 90Y radioembolization

open access: yesJournal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Purpose To investigate the accuracy and biases of predicted lung shunt fraction (LSF) and lung dose (LD) calculations via 99mTc‐macro‐aggregated albumin (99mTc‐MAA) planar imaging for treatment planning of 90Y‐microsphere radioembolization.
Benjamin P. Lopez   +4 more
wiley   +1 more source

Factors Controlling the Spatial and Temporal Variability in Groundwater 222Rn and U Levels [PDF]

open access: yesWater, 2019
Radon (222Rn) and uranium (U) measurements were conducted in 98 groundwater samples in Yongin area, Korea to identify the factors controlling their levels and spatial distributions. Groundwater samples were obtained from the different depth of wells used for drinking water and irrigation.
Cho, Soo Young   +4 more
openaire   +2 more sources

The Singularity in Generic Gravitational Collapse Is Spacelike, Local, and Oscillatory [PDF]

open access: yes, 1998
A longstanding conjecture by Belinskii, Khalatnikov, and Lifshitz that the singularity in generic gravitational collapse is spacelike, local, and oscillatory is explored analytically and numerically in spatially inhomogeneous cosmological spacetimes ...
B. K. BERGER   +9 more
core   +2 more sources

COMP Report: CPQR technical quality control guidelines for use of positron emission tomography/computed tomography in radiation treatment planning

open access: yesJournal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Positron emission tomography with x‐ray computed tomography (PET/CT) is increasingly being utilized for radiation treatment planning (RTP). Accurate delivery of RT therefore depends on quality PET/CT data. This study covers quality control (QC) procedures required for PET/CT for diagnostic imaging and incremental QC required for RTP.
Ran Klein   +7 more
wiley   +1 more source

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