Results 71 to 80 of about 58,553 (356)

Population of Nonmetallic Inclusions in Liquid High‐Silicon Electrical Steel in Contact With MgO–C Refractories Based on Recyclates and Environmentally Friendly Binders

open access: yesAdvanced Engineering Materials, EarlyView.
The formation of nonmetallic inclusions (NMIs) was investigated in this study, carrying out immersion tests for 30 min at a temperature of 1600°C with liquid high‐silicon electrical steel (Si ≈ 3 mass‐%) and different MgO–C refractories. Conventional MgO–C refractories were considered, as well as MgO–C refractories containing MgO–C recyclate and ...
Lukas Neubert   +6 more
wiley   +1 more source

ANALISIS LEARNING PROGRESSION SISWA PADA PEMBELAJARAN LISTRIK DAN MAGNET DENGAN MODEL CONSTRUCTIVIST TEACHING SEQUENCES (CTS) [PDF]

open access: yes, 2017
Pemahaman siswa mengenai fenomena fisik yang berkaitan dengan suatu konsep, dapat diidentifikasi melalui analisis model mental yang dimilikinya. Dalam sebuah proses pembelajaran, perubahan model mental siswa merupakan indikator yang baik untuk mengetahui
Hamid, Rimba
core  

Exploring Dipolar Dynamics and Ionic Transport in Metal‐Organic Frameworks: Experimental and Theoretical Insights

open access: yesAdvanced Functional Materials, EarlyView.
In this study, the interplay of dipolar dynamics and ionic charge transport in MOF compounds is investigated. Synthesizing the novel structure CFA‐25 with integrated freely rotating dipolar groups, local and macroscopic effects, including interactions with Cs cations are explored.
Ralph Freund   +6 more
wiley   +1 more source

Ferrocene Derivatives Enable Ultrasensitive Perovskite Photodetectors with Enhanced Reverse Bias Stability

open access: yesAdvanced Functional Materials, EarlyView.
Novel ferrocene derivatives (e.g., FcPhc2) are used as an ultrathin layer hole‐blocking layer, reducing hole injection from the Ag contact. This results in an ultralow noise spectral density of 1.2 × 10−14 A Hz−1/2, and a high specific detectivity of 8.1 × 1012 Jones at −0.5 V.
Eunyoung Hong   +16 more
wiley   +1 more source

3D (Bio) Printing Combined Fiber Fabrication Methods for Tissue Engineering Applications: Possibilities and Limitations

open access: yesAdvanced Functional Materials, EarlyView.
Biofabrication aims at providing innovative technologies and tools for the fabrication of tissue‐like constructs for tissue engineering and regenerative medicine applications. By integrating multiple biofabrication technologies, such as 3D (bio) printing with fiber fabrication methods, it would be more realistic to reconstruct native tissue's ...
Waseem Kitana   +2 more
wiley   +1 more source

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

open access: yesAdvanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai   +8 more
wiley   +1 more source

Physics students’ construction of differential length vectors in an unconventional spherical coordinate system

open access: yesPhysical Review Physics Education Research, 2019
Vector calculus and multivariable coordinate systems play a large role in the understanding and calculation of much of the physics in upper-division electricity and magnetism. Differential vector elements represent one key mathematical piece of students’
Benjamin P. Schermerhorn   +1 more
doaj   +1 more source

Teaching Physical Science Through Technology: Middle School VCU PHY 591 [PDF]

open access: yes, 1999
Teaching Physical Science through Technology is a new 3-credit laboratory-and-lecture based course designed to serve as an introduction to the teaching of physical science concepts at the middle school level.
Hagan, D. B., Niculescu, V. A,
core   +1 more source

Carrier-mediated magnetoelectricity in complex oxide heterostructures

open access: yes, 2007
While tremendous success has been achieved to date in creating both single phase and composite magnetoelectric materials, the quintessential electric-field control of magnetism remains elusive. In this work, we demonstrate a linear magnetoelectric effect
A Antons   +42 more
core   +1 more source

Students’ conceptual understanding of electricity and magnetism and its implications: A review

open access: yesAfrican Journal of Educational Studies in Mathematics and Sciences, 2019
Physics subject continues to be considered as difficult and unattractive by students. This leads to the development of negative attitudes towards the subject.
Agnes Mbonyiryivuze   +2 more
semanticscholar   +1 more source

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