Results 71 to 80 of about 319,403 (355)

Applying spatial reasoning to topographical data with a grounded geographical ontology [PDF]

open access: yes, 2007
Grounding an ontology upon geographical data has been pro- posed as a method of handling the vagueness in the domain more effectively. In order to do this, we require methods of reasoning about the spatial relations between the regions within the data ...
A.C. Varzi   +25 more
core   +1 more source

Marked Long‐Term Improvement in Lung Function in Melanoma Differentiation–Associated Protein 5 Antibody–Positive Dermatomyositis Patients: Experience of a Single‐Center Longitudinal Cohort in North America

open access: yesArthritis Care &Research, EarlyView.
Objective The objective of this study was to describe the longitudinal disease course and pulmonary outcomes of North American patients with melanoma differentiation–associated protein 5 (MDA5) antibody–associated dermatomyositis (DM). Methods Thirty patients with MDA5 antibody–associated DM were identified in a single‐center longitudinal cohort of 352
Jenice X. Cheah   +8 more
wiley   +1 more source

Thin Conductor Modelling Combined with a Hybrid Numerical Method to Evaluate the Transferred Potential from Isolated Grounding System

open access: yesEnergies, 2019
Grounding systems are essential parts of substations and power generation stations. The evaluation of transferred potentials from an active grounding system to other passive ones or to any near conductors is an important aspect to be considered, because ...
Giovanni Aiello   +3 more
doaj   +1 more source

Simulation study on electrical resistance tomography using metal wall for bubble detection [PDF]

open access: yes, 2015
Industrial process pipelines are mostly known to be constructed from metal which is a conducting material. Bubbles or gas detection are crucial in facilitating the bubble columns performance.
Abdul Rahim, Ruzairi   +7 more
core   +2 more sources

Does Long‐Term Lower Extremity Strength Training in Adults With Knee Osteoarthritis and Varus Alignment Reduce Knee Joint Loading During Gait?

open access: yesArthritis Care &Research, EarlyView.
Objective We examined whether 18 months of strength training in individuals with knee varus alignment and medial tibiofemoral osteoarthritis (OA) reduced knee joint loads during walking compared to an attention control group. Methods This study was a secondary analysis of a randomized clinical trial that compared the effects of strength training to a ...
Stephen P. Messier   +12 more
wiley   +1 more source

Заземление устройств защиты от перенапряжений на подстанциях 330/110 кВ [PDF]

open access: yes, 2013
В статье приведены основные недостатки заземляющих устройств подстанций 330/110 кВ в части заземления устройств защиты от перенапряжений. Рассмотрено несколько примеров заземляющих устройств подстанций 330/110 кВ, расположенных в различных регионах ...
Глебов, О. Ю.   +3 more
core  

Current Tracking Adaptive Control of Brushless DC Motors

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView.
In this paper, the current tracking for Brushless Direct Current motors is approached considering uncertainty in the parameters of the motor's model. An adaptive control scheme to compensate electrical parameters uncertainty is proposed without requiring any knowledge of the mechanical parameters.
Fernanda Ramos‐García   +3 more
wiley   +1 more source

Findings of the Joint Workshop on Evaluation of Impacts of Space Station Freedom Ground Configurations [PDF]

open access: yes
At the workshop, experts from the plasma interactions community evaluated the impacts of environmental interactions on the Space Station Freedom (SSF) under each of the proposed grounding schemes.
Carruth, Ralph   +2 more
core   +1 more source

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur   +5 more
wiley   +1 more source

PAST: Programa para el proyecto y análisis de sistemas de puesta a tierra. (Primera parte); SistPTEx: Program for the project and analysis of grounding system. (First part).

open access: yesRevista Científica de Ingeniería Energética, 2011
resistencia de contacto a tierra de diferentes configuraciones de electrodos, desde métodos aproximados, métodos semiexactos, hasta métodos que garantizan muy buenos niveles de exactitud.
Angel Cecilio Valcárcel Rojas   +2 more
doaj  

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