Results 91 to 100 of about 7,147 (316)

Fertimetro, a Principle and Device to Measure Soil Nutrient Availability for Plants by Microbial Degradation Rates on Differently-Spiked Buried Threads [PDF]

open access: yes, 2018
A novel patented method (PCT/IB2012/001157: Squartini, Concheri, Tiozzo, University of Padova) and the corresponding application devices, suitable to measure soil fertility, are presented. The availability or deficiency of specific nutrients for crops is
Berti, A.   +7 more
core   +1 more source

Association Between Symptomatic Knee Osteoarthritis and Target Glycemic Control in Individuals With Type 2 Diabetes

open access: yesArthritis Care &Research, EarlyView.
Objective Knee osteoarthritis (OA) commonly affects individuals with type 2 diabetes (T2DM) and is associated with increased risk of diabetes‐related complications. To better understand potential mechanisms, we examined the association between symptomatic knee OA and glycemic control in individuals with T2DM.
Lauren K. King   +10 more
wiley   +1 more source

The Influence of Atmospheric Overvoltages on High-Voltage SF6 Substations [PDF]

open access: yes, 2011
Very fast overvoltages are characteristic of high-voltage metal-enclosed SF6 insulated substations. During the transient phenomenon, on the SF6 substation enclosure an undesired, short-lasting induced overvoltage may appear, which cannot be prevented ...
Marinko Barukčić   +2 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

Niveles de aterramiento y rayo: simulación de sus efectos sobre el consumidor; Earthing Levels and Lightning:Modeling and Simulation of Effects on Consumer

open access: yesRevista Científica de Ingeniería Energética, 2011
El objetivo del trabajo es el análisis, a través de MatLab, de los efectos que tienen, sobre las tensionesy corrientes que circulan por la carga y el neutro de una instalación, la condición de considerar lossistemas de puesta ...
Miguel Castro Fernández   +3 more
doaj  

An Investigation of Earth Grid Performance Using Graphene-Coated Copper

open access: yesIEEE Access, 2015
Large power systems are normally operated with their neutral points directly earthed. At a major generating or switching station, this results in the provision of a large earth grid buried in the ground.
Amit Jyoti Datta   +3 more
doaj   +1 more source

Application of meshless methods to the analysis and design of grounding systems [PDF]

open access: yes, 1998
4th World Congress on Computational Mechanics, 1998, Buenos Aires[Abstract] Analysis and design of grounding systems of electrical installations involves computing the potential distribution in the earth and the equivalent resistance of the system ...
Casteleiro, Manuel   +3 more
core  

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

Earth current monitoring circuit for inductive loads [PDF]

open access: yes, 2009
The search for higher magnetic fields in particle accelerators increasingly demands the use of superconducting magnets. This magnet technology has a large amount of magnetic energy storage during operation at relatively high currents.
Cussac, P   +3 more
core  

Accurate Assessment of Decoupled OLTC Transformers to Optimize the Operation of Low-Voltage Networks [PDF]

open access: yes, 2019
Voltage control in active distribution networks must adapt to the unbalanced nature of most of these systems, and this requirement becomes even more apparent at low voltage levels. The use of transformers with on-load tap changers is gaining popularity,
Rodríguez del Nozal, Álvaro   +2 more
core   +1 more source

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