Results 61 to 70 of about 2,985,195 (250)

The Importance of Pilot Studies [PDF]

open access: yes, 2001
The term 'pilot studies' refers to mini versions of a full-scale study (also called 'feasibility' studies), as well as the specific pre-testing of a particular research instrument such as a questionnaire or interview schedule.
Hundley, Vanora   +2 more
core   +5 more sources

Non‐Additive Criteria Assessment in Sustainability Evaluation of High Entropy Alloys: A Toxicity‐Weighted Framework

open access: yesAdvanced Engineering Materials, EarlyView.
Sustainability assessment requires methodologies that appropriately distinguish between additive and non‐additive material properties. A toxicity‐weighted scoring system is developed and applied that accounts for the disproportionate influence of highly toxic constituents through nonlinear weighting functions, providing more realistic estimates than ...
Seth Mehalic   +2 more
wiley   +1 more source

Hybrid Multi-Infeed Receiver Line Longitudinal Protection Scheme Based on Voltage Waveform Comprehensive Distance Similarity

open access: yesSensors
The coupling of AC and DC power will impact the protective actions on the AC side and pose a threat to the stable operation of the interconnection system.
Shuping Gao   +4 more
doaj   +1 more source

The corrosion behavior and mechanical property of the Mg–7Y–xNd ternary alloys

open access: yesJournal of Magnesium and Alloys, 2018
The corrosion behavior and mechanical property of Mg–7Y–xNd (x = 0.5, 1.0, 1.5 wt%) alloys were investigated. The microstructure and precipitations of Mg–7Y–xNd alloys were studied by scanning electron microscopy, energy-dispersive spectrometry and X-ray
Quantong Jiang   +4 more
doaj   +1 more source

Entropy‐Driven Design of Low‐Melting‐Point Alloys via Compositionally Complex Strategy

open access: yesAdvanced Engineering Materials, EarlyView.
Conventional low‐melting‐point alloys (LMPAs) are limited by a narrow compositional space and inherent property trade‐offs. This review presents an entropy‐driven design strategy that overcomes these limitations, ushering in a new class of low‐melting‐point compositionally complex alloys (LMCCAs).
Yinghui Shang   +6 more
wiley   +1 more source

A Protection System for Improved Ring-Bus DC Microgrids

open access: yesEnergies, 2019
An improved system structure and a corresponding protection system are proposed in this paper, which aims at providing future DC microgrids with suitable protection ideas.
Zhiming Zhang   +3 more
doaj   +1 more source

Simulation‐Based Analysis of Insert Pull‐Out in Nickel‐Polyurethane Hybrid Foams Using CT‐Derived Geometries

open access: yesAdvanced Engineering Materials, EarlyView.
CT‐based finite element simulations combined with in situ X‐ray computed tomography are used to analyze insert pull‐out in nickel‐coated polymer foams. Despite variations in material parameters, deformation consistently concentrates within a narrow annular region around the insert.
Yannik Bautz   +4 more
wiley   +1 more source

A practical framework for national park management and protection in China: A case study of NanShan National Park

open access: yesInternational Journal of Geoheritage and Parks, 2020
After Nanshan National Park System Pilot Area was approved by China central government and established in 2016, it has explore the construction mode of national in line with the ecological protection and development of Nanshan National Park.
Duo Zhang, Jianwei Ni, Shaorui Wang
doaj   +1 more source

Self‐Sintering Ionogel Binder for Flexible, Recyclable, and Healable Printed Giant Magnetoresistive Sensors

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT Electronic waste has emerged as a major environmental challenge, driven by the massive consumption and a limited lifetime of modern electronic devices, stimulating the development of sustainable electronics. Here, an all‐biomaterial gelatin‐choline‐citric acid ([Ch][CA]) ionogel is developed as an active binder to realize self‐sintered ...
Lin Guo   +10 more
wiley   +1 more source

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