Results 111 to 120 of about 1,427,983 (311)

A review on the rotary ultrasonic machining of advanced ceramics [PDF]

open access: yes, 2008
Advanced ceramics are likely candidates for many industrial applications due to their superior properties. However, their high machining costs lead to limited applications.
Hamzah, Esah, Khoo, C. Y., Sudin, Izman
core  

Attending to Preservice Teachers' Assets: Beliefs and Practices for Supporting Expansive Sensemaking in Elementary Science

open access: yesScience Education, EarlyView.
ABSTRACT Preservice elementary science teachers' beliefs and practices influence the kinds of adaptations they make to curriculum materials and the extent to which they are able to enact justice‐oriented science lessons. Through this qualitative study, we explored the beliefs and practices of five focal preservice teachers through an analysis of their ...
Jessica Bautista, Elizabeth A. Davis
wiley   +1 more source

Rolling-contact bearing reference summary [PDF]

open access: yes
Design and performance of rolling contact ...
Cox, D. B.   +3 more
core   +1 more source

Identity Play: Middle School Youths' Provisional Self‐Making in Horizon‐Expanding STEM Spaces

open access: yesScience Education, EarlyView.
ABSTRACT This study introduces identity play as an analytic construct for science education to explore improvisational dimensions of middle school students' STEM identity development in multiple out‐of‐school learning experiences focused on environmental problem‐solving.
Heidi B. Carlone, Alison K. Mercier
wiley   +1 more source

“There Are Places Full of Beauty”: Desettling High School Students' Scientific Writing

open access: yesScience Education, EarlyView.
ABSTRACT This study contributes to desettling and expanding expectations about the forms of scientific language that belong in students' scientific writing. The primary empirical focus is the analysis of 52 high school student abstracts articulating community‐based investigations, submitted as part of their participation in a student conference in a ...
Alejandra Frausto Aceves
wiley   +1 more source

Correlation‐Driven d‐Band Modifications Promote Chemical Bonding at 3d‐Ferromagnetic Surfaces

open access: yesSmall, EarlyView.
Electron correlation at the oxygen‐passivated Fe(100) surface renormalizes and narrows the Fe d‐bands, enhancing their energetic overlap with the frontier orbitals of adsorbed pentacene. This strengthens hybridization and converts a weakly bound interface into a chemisorbed hybrid system, illustrating how correlation‐tuned d‐bands can be used to ...
David Maximilian Janas   +10 more
wiley   +1 more source

Suggested music activities for grades one and two. [PDF]

open access: yes, 1951
Thesis (Ed.M.)--Boston ...
Anderson, Catherine B., Pilibosian, Rose
core   +1 more source

In Situ Growth of 2D Perovskite Nanocrystals to Induce β–Phase of PVDF for Piezoelectric Nanogenerators with Ultra‐High Output Voltage

open access: yesSmall, EarlyView.
In situ grown 2D perovskite nanocrystals embedded in PVDF enable flexible piezoelectric nanogenerators with greatly enhanced β‐phase content and a high d33∗${\mathrm{d}}_{33}^{\mathrm{*}}$ of 35.16 pm/V. The devices deliver up to 66.54 V, exhibit light‐enhanced piezoelectricity, and maintain durability over 12000 cycles, offering a stable energy source
Yang Yang   +11 more
wiley   +1 more source

Optimising Wave Energy Plant Location Through Neutrosophic Multi‐Criteria Group Decision‐Making

open access: yesCAAI Transactions on Intelligence Technology, EarlyView.
ABSTRACT The global shift towards sustainable energy has intensified research into renewable sources, particularly wave energy. Pakistan, with its long coastline, holds significant potential for wave energy development. However, identifying optimal locations for wave energy plants involves evaluating complex, multi‐faceted criteria.
Hafiz Muhammad Athar Farid   +4 more
wiley   +1 more source

Platinum Group Element Traces of CAMP Volcanism Associated With Low‐Latitude Environmental and Biological Disruptions

open access: yesGeophysical Monograph Series, Page 263-304., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Jessica H. Whiteside   +3 more
wiley  

+3 more sources

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