Results 101 to 110 of about 90,616 (309)

Enhanced Gamma Radiation Shielding Using Epoxy Quartz Fabric Composites Reinforced With CoCl2 Microparticles

open access: yesAdvanced Engineering Materials, EarlyView.
The growing demand for lightweight, nontoxic, and multifunctional gamma shielding materials has intensified efforts to find alternatives to conventional lead and aluminum‐based protectants. In this work, we develop epoxy quartz fabric composites reinforced with cobalt chloride (CoCl2) microparticles, fabricated via hand lay‐up with varying filler ...
Summan Urooge   +7 more
wiley   +1 more source

Is the Discourse of Hybridity a Celebration of Mixing, or a Reformulation of Racial Division? A Multimodal Analysis of the Portuguese Magazine Afro

open access: yesForum: Qualitative Social Research, 2010
For many years the study of "race" relations was dominated by paradigms—of assimilationism and multiculturalism—which highlighted difference and division (as a problem, or a virtue).
José Ricardo Carvalheiro
doaj  

Piezoresistive Monitoring of Carbon Nanomaterial‐Reinforced Epoxy Composites Under Cyclic and Fatigue Loading: A Review

open access: yesAdvanced Engineering Materials, EarlyView.
Carbon nanomaterial‐reinforced epoxy composites exhibit pronounced piezoresistive behavior, enabling intrinsic damage sensing under cyclic and fatigue loading. This review critically compares carbon nanotube and graphene systems, correlating filler content, percolation threshold, and gauge factor with sensing stability and damage evolution.
J. M. Parente   +3 more
wiley   +1 more source

3D‐Printed Giant Magnetoresistive (GMR) Sensors Based on Self Compliant Springs

open access: yesAdvanced Engineering Materials, EarlyView.
This work explores 3D‐printed GMR sensors utilizing self‐compliant spring structures and conductive PLA composites. By optimizing arm width, we achieved high piezoresistive (0.34%/mm) and magnetoresistive (0.77%/mT) sensitivities. Demonstrated through Bluetooth‐integrated pressure and magnetic position sensing, these full printed low‐cost, customizable
Josu Fernández Maestu   +4 more
wiley   +1 more source

Mixité et hybridité ethniques et culturelles au Royaume-Uni : un défi pour le multiculturalisme britannique

open access: yesCahiers du MIMMOC, 2007
The concept of hybridity / mixed race emerged in the 19th century. In the 1980s and at the beginning of the 1990s, it was retrieved, rehabilitated and transformed by postmodern British thinkers such as Stuart Hall, Homi Bhabba and Paul Gilroy.
Didier Lassalle
doaj   +1 more source

Oxide‐Free Titanium Coatings by Wire Arc Spraying in a Silane‐Doped Inert Atmosphere

open access: yesAdvanced Engineering Materials, EarlyView.
A silane‐doped argon atmosphere enables the production of oxide‐free titanium coatings via twin‐wire arc spraying at ambient pressure. This innovative approach eliminates residual oxygen, creating process conditions that prevent oxidation and nitride formation.
Manuel Rodriguez Diaz   +4 more
wiley   +1 more source

The Globalization of Maternal Healthcare in Western Africa

open access: yes, 2014
Maternal healthcare is one of the most important global issues in today’s world, reflected in its inclusion in the Millennium Development Goals. Globalization, through increased acceleration and movement, has improved maternal healthcare in Western ...
Magistrali, Maura T.
core  

Balancing pragmatic and moral legitimacy. NPOs in a context of nonprofit-business hybridity [PDF]

open access: yes, 2019
In nonprofit management literature, there is a debate about the effect of nonprofit-business hybridity on organizational legitimacy. This paper contributes to the discussion by using a broad conceptualization of nonprofit-business hybridity and a multi ...
Carré, Björn   +2 more
core  

Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley   +1 more source

Echinoderm Hybridization [PDF]

open access: yesScience, 1913
Mode of access: Internet.
openaire   +2 more sources

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