Results 151 to 160 of about 907,141 (332)

Electrically Tunable On‐Chip Topological Photonics with Integrated Carbon Nanotubes

open access: yesAdvanced Functional Materials, EarlyView.
This work demonstrates electrically tunable on‐chip topological THz devices by integrating 2D carbon nanotube (CNT) sheets with valley‐Hall photonic crystals, enabling broadband transmission modulation (71% modulation depth) and tunable narrowband filtering (0.54 GHz shift) through electrically induced thermal tuning. This advancement paves the way for
Jifan Yin   +7 more
wiley   +1 more source

Pengembangan Instrumen Tes Kemampuan Representasi Matematis dalam Materi Persamaan Garis Lurus di SMP [PDF]

open access: yes, 2016
The purpose of research is to develop test instrument to measure the ability of mathematical representation in equations with two variables in Junior High School. The methodology that use is a research and development. The first phase in this research is
Nursangaji, A. (Asep)   +2 more
core  

Analysis of Mathematical Representation Ability Development in Secondary High School

open access: yesInternational Journal of Engineering & Technology, 2018
This study aims to determine the development of mathematical representation skills of junior high school students (SMP) based on mathematical exam results data in 2014-2016. The research data was obtained from responses of students' answers consisting of 1,535 students in 2014 and 2,000 students in 2015 and 2016 classified based on indicators of ...
Wardani Rahayu, Rizka Zakiah
openaire   +2 more sources

The Realization of Multidirectional, Free‐Standing 3D Plasmonic Nanostructures via 3D Nanoprinting: A Case Study of Fractal Antennas

open access: yesAdvanced Functional Materials, EarlyView.
Free‐standing plasmonic gold‐based fractal antennas are fabricated by 3D nanoprinting, employing focused electron beam induced deposition and an optimized purification method to remove carbon while conserving structural fidelity. Simulation and experiment show broadband plasmonic activity, including customizable polarizability, thereby paving the way ...
Verena Reisecker   +6 more
wiley   +1 more source

Golden‐Ratio–Guided Aperiodic Architected Metamaterials with Simultaneously Enhanced Strength and Toughness

open access: yesAdvanced Functional Materials, EarlyView.
Guided by the golden ratio, a class of aperiodic architected metamaterials is introduced to address the intrinsic trade‐off between strength and toughness. By unifying local geometric heterogeneity with global order, the golden‐ratio‐guided aperiodic architecture promotes spatial delocalization of damage tolerence regions, leading to more tortuous ...
Junjie Deng   +9 more
wiley   +1 more source

The Effects of Quantum Learning and Self-Efficacy on High-School Students’ Mathematical Representation Skills

open access: yesJournal of Education Technology
Mathematical representation ability is an essential skill that enables students to connect mathematical concepts with real-life contexts. However, many senior high school students still experience difficulties in representing mathematical ideas ...
Jafar Dahlan   +3 more
doaj   +1 more source

Kesulitan Koneksi Matematis Siswa dalam Penyelesaian Soal pada Materi Lingkaran di SMP [PDF]

open access: yes, 2014
: This research is titled "connection difficulties in students mathematical problem-solving on a circle in the SMP material". The purpose of this research is to examine difficulties or give a description of the mathematical connections and the factors ...
F04109023, M. B. (marlin)   +2 more
core  

Development of Ethnomathematics-Based Worksheets to Facilitate Mathematical Representation Ability

open access: yesEdumatica : Jurnal Pendidikan Matematika, 2022
The mathematical representation ability of junior high school (SMP) students is still not optimal. This study aims to develop student activity sheets (LKS) with valid, practical and effective criteria based on ethnomathematics which can specifically facilitate students' mathematical representation abilities.
Astuti, Novita   +2 more
openaire   +1 more source

Charge‐Induced Morphing Gels for Bioinspired Actuation

open access: yesAdvanced Functional Materials, EarlyView.
This study introduces a novel electroactive actuation mechanism that enables the gel material to generate substantial and reversible shape‐changing while preserving topological and isochoric (volumetric) equivalence. The resultant morphing behaviors can mimic the movements of muscle‐driven organelles in nature, including cilia‐like beating and ...
Ciqun Xu   +4 more
wiley   +1 more source

Analisis Kemampuan Koneksi Matematis Siswa SMP dalam Menyelesaikan Soal Persamaan dan Pertidaksamaan Linear Satu Variabel [PDF]

open access: yes, 2018
This research is a descriptive qualitative study that aims to analyze the percentage of mathematical connection abilities in solving questions of One Variable Linear Equations and Inequalities which are seen based on indicators.
Nuryatin, S. (Siti)   +1 more
core  

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