Results 41 to 50 of about 3,265 (186)

The perceptions of social responsibility for community resilience to flooding: the impact of past experience, age, gender and ethnicity [PDF]

open access: yes, 2016
Community resilience to flooding depends, to a large extent, on the participation of community members to take more responsibility for enhancing their own resilience.
A Boehm   +103 more
core   +2 more sources

Comparative Biocompatibility of Portland‐Based Endodontic Cements Containing Niobium and/or Bismuth Oxides in Rat Subcutaneous Tissue

open access: yesBioMed Research International, Volume 2026, Issue 1, 2026.
Objectives To evaluate the in vitro cytocompatibility and osteogenic potential and the in vivo biocompatibility of two experimental endodontic cements based on Portland cement combined with either Nb2O5 (F6) and/or bismuth oxide (F7) in a rat subcutaneous implantation model. Methods For the in vitro study, MC3T3‐E1 preosteoblastic cells were exposed to
Raphael Victor Silva Andrade   +14 more
wiley   +1 more source

Consistent pollen nutritional intake drives bumble bee (Bombus impatiens) colony growth and reproduction across different habitats

open access: yesEcology and Evolution, Volume 8, Issue 11, Page 5765-5776, June 2018., 2018
Bumble bee (Bombus impatiens) colonies in the field collected similar pollen protein, lipid, and carbohydrate macronutrient values across different habitats, including consistent protein:lipid ratios that they preferred in previous controlled experiments.
Anthony D. Vaudo   +4 more
wiley   +1 more source

Technical and vocational skills (TVS): a means of preventing violence among youth in Nigeria [PDF]

open access: yes, 2017
Technical and vocational skills are an important tool for reducing violence among youth, especially in Nigeria, who face security challenges due to different kinds of violence.
Ibrahim, Mohammed   +1 more
core  

Practitioner Perspectives of Flood Source Area (FSA) Analysis for System‐Based Flood Risk Management

open access: yesJournal of Flood Risk Management, Volume 18, Issue 4, December 2025.
ABSTRACT Urban Flood Risk Management (FRM) is a critical aspect of developing resilient environments for future generations to inhabit. It is now interconnected with the requirement to be more environmentally conscious through blue‐green infrastructure and the delivery of wider co‐benefits.
David A. Dawson   +6 more
wiley   +1 more source

Methodology to locate and quantify radial winding deformation in power transformers

open access: yesHigh Voltage, Volume 2, Issue 1, Page 17-24, March 2017., 2017
Frequency response analysis (FRA) is a tool that can be used to detect changes within the structural geometry of a transformer. One application of FRA is to detect winding displacement after the transformer experiences an overcurrent event. This paper proposes a methodology which will facilitate both locating and quantifying winding deformation.
Steven D. Mitchell, James S. Welsh
wiley   +1 more source

Detection of Transformer Faults: AI-Supported Machine Learning Application in Sweep Frequency Response Analysis

open access: yesEnergies
In this study, we discussed how the increasing demand for electrical energy results in higher loads on transformers, creating the need for more effective testing and maintenance methods.
Hakan Çuhadaroğlu, Yılmaz Uyaroğlu
doaj   +1 more source

FRA Diagnostics Measurement of Winding Deformation in Model Single-Phase Transformers Made with Silicon-Steel, Amorphous and Nanocrystalline Magnetic Cores

open access: yesEnergies, 2020
The power transformer is a key object in the electrical power system. The working principle hasn’t changed since its discovery. The main work nowadays is focused on the rising of the reliability of transformers and lowering power losses.
Maciej Kuniewski
doaj   +1 more source

Strategic view of an assets health index for making long-term decisions in different industries [PDF]

open access: yes, 2018
Libro en Open AccessAn Asset Health Index (AHI) is a tool that processes data about asset’s condition. That index is intended to explore if alterations can be generated in the health of the asset along its life cycle.
Crespo Márquez, Adolfo   +7 more
core   +1 more source

Equivalent Circuit Model and Experimental Validation of Transformer Windings Considering Long‐Distance Conductor Effects and Frequency‐Dependent Parameters

open access: yesIET Electric Power Applications, Volume 19, Issue 1, January/December 2025.
In this paper, we propose a novel transformer winding modelling method that incorporates the effects of remote conductors and parametric frequency variations. Using ANSYS Maxwell simulation software, we constructed a finite element model based on specific transformer design parameters, which allowed us to precisely calculate essential electrical ...
Feng Yiwei   +6 more
wiley   +1 more source

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