Results 121 to 130 of about 1,278,035 (330)

1D Light‐Emitting MAPbBr3 Perovskite Encapsulated in Carbon Nanotubes

Advanced Functional Materials, EarlyView.
Encapsulation of MAPbBr3 perovskite in single‐walled carbon nanotubes (SWCNTs) yields a hybrid nanomaterial with distinctive optoelectronic properties. Perovskite confinement induces a unified single‐peak photoluminescence (PL) with a reduced lifetime, while charge transfer alters the optical properties of nanotubes.
Valentina A. Eremina, Timofei Eremin, Hua Jiang, Rakesh Dhama, Jokotadeola Odutola, Humeyra Caglayan, Nikolai V. Tkachenko, Petr A. Obraztsov   +7 more
wiley   +1 more source

Inquiry Based Learning from the Learner’s Point of View: A Teacher Candidate’s Success Story

, 2017
The goal of this paper is to review current research on Inquiry Based Learning (IBL) and shed some light, from a student’s perspective, on the challenges and rewards of this pedagogy.
C. Caswell, Derek J LaBrie
semanticscholar   +1 more source

Enhancing CoFe Catalysts with V2CTX MXene‐Derived Materials for Anion Exchange Membrane Electrolyzers

Advanced Functional Materials, EarlyView.
MXene dervied CoFe composites show increased initial Oxygen Evolution Reaction (OER) activity compared to the pure CoFe and MXene in an Anion Exchange Membrane device. Vanadium vacancies in the MXene plays a role in increased OER activity and hinders Fe leaching in the AEM device over using the pure V2C MXene as a support material for the CoFe ...
Can Kaplan, Karuppasamy Dharmaraj, Thorsten Schultz, Leiqiang Qin, Ningjun Chen, Danielle A. Douglas‐Henry, Bastian Schmiedecke, Merve Buldu‐Akturk, Axel Zuber, Iris Dorbandt, Maximilian Reinhardt, Yael Rodriguez‐Ayllon, Yan Lu, Valeria Nicolosi, Norbert Koch, Johanna Rosen, Michelle P. Browne   +16 more
wiley   +1 more source

VERIFYING AND FALSYFING OF SCIENTIFIC THEORIES [PDF]

Hum, 2008
Logical positivists plead for the application of verifying criteria in science as principles which justify the statements of science and give sense to scientific notions and statements.
Antonio Poljak
doaj  

Assessment of Ecological Environment Pressure and Detection of Key Points for Mariculture in Beibu Gulf of Guangxi

Haiyang Kaifa yu guanli, 2022
Taking Guangxi Beibu Gulf mariculture area as an example, the fuzzy mathematics grey statistics and entropy weight TOPSIS method were used to establish the ecological environment pressure evaluation system of Guangxi Beibu Gulf mariculture, and the Arc ...
Shenglong CHENG, Yan LI, Jing HUANG, Xiao FU, Hao RONG   +4 more
doaj  

A graph theoretical Poincare-Hopf Theorem [PDF]

, 2012
We introduce the index i(v) = 1 - X(S(v)) for critical points of a locally injective function f on the vertex set V of a simple graph G=(V,E). Here S(v) = {w in E | (v,w) in E, f(w)-f(v)
Knill, Oliver
core  

Pentagonal 2D Altermagnets: Material Screening and Altermagnetic Tunneling Junction Device Application

Advanced Functional Materials, EarlyView.
From a database of 170 pentagonal 2D materials, 4 candidates exhibiting altermagnetic ordering are screened. Furthermore, the spin‐splitting and unconventional boundary states in the pentagonal 2D altermagnetic monolayer MnS2 are investigated. A MnS2‐based altermagnetic tunneling junction is designed and, through ab initio quantum transport simulations,
Jianhua Wang, Xingyue Yang, Zongmeng Yang, Jing Lu, Pin Ho, Wenhong Wang, Yee Sin Ang, Zhenxiang Cheng, Shibo Fang   +8 more
wiley   +1 more source

Prospects of Electric Field Control in Perpendicular Magnetic Tunnel Junctions and Emerging 2D Spintronics for Ultralow Energy Memory and Logic Devices

Advanced Functional Materials, EarlyView.
Electric control of magnetic tunnel junctions offers a path to drastically reduce the energy requirements of the device. Electric field control of magnetization can be realized in a multitude of ways. These mechanisms can be integrated into existing spintronic devices to further reduce the operational energy.
Will Echtenkamp, Brahmdutta Dixit, Yifei Yang, Deyuan Lyu, Thomas Peterson, Qi Jia, Yu‐Chia Chen, Jian‐Ping Wang   +7 more
wiley   +1 more source

A didactic sequence for the teaching of polygons: the use of manipulable materials in the fifth grade of the elementary school

ACTIO: Docência em Ciências, 2018
This paper resulted from a master's research part on the development of the student's geometric thinking. The study focused on the study of polygons aiming to investigate the possible applications of manipulable materials for teaching Geometry in the 5th
Cileide Teixeira da Silva Polli, Helenara Regina Sampaio Figueiredo   +1 more
doaj   +1 more source

A mathematical theory of the critical point of ferromagnetic Ising systems

, 2023
Domingos H. U. Marchetti, Manfred Requardt, Walter F. Wreszinski   +2 more
openalex   +2 more sources