Results 111 to 120 of about 718,657 (276)

Predicting growth of gold nanoparticle by photochemical reduction process associated with mathematical modelling [PDF]

open access: diamond, 2015
Hazidatul Akma Hamlan   +5 more
openalex   +1 more source

Rapid Diagnostics of Reconfigurable Intelligent Surfaces Using Space‐Time‐Coding Modulation

open access: yesAdvanced Functional Materials, EarlyView.
A fast reconfigurable‐intelligent‐surface (RIS) diagnostics method is proposed based on spatio‐temporal modulation with orthogonal codes. Theoretical analysis demonstrates a clear distinction in code channel power between normal and faulty elements. Simulations validate its feasibility under high fault ratios and varying receiving angles.
Yi Ning Zheng   +7 more
wiley   +1 more source

PERANCANGAN OKTAGRAM SEBAGAI MEDIA PEMBELAJARAN GEOMETRI SEKOLAH DASAR

open access: yesJurnal Math Educator Nusantara: Wahana Publikasi Karya Tulis Ilmiah di Bidang Pendidikan Matematika, 2015
:This study aims to determine: (1) Octagrams development with ADDIE models, (3)which havea better mathematics achievement in Geometry, who teachuses Octagram or the ones withtraditional approach.This study is a research and development of Octagramuses ...
Erika Laras Astuningtyas
doaj  

How are the classification of students’ mathematical connections in solving non-routine problems?

open access: yesAl-Jabar
Background: Mathematics is not just a science for its own sake; it is a science that proves to be useful for most other sciences. Mathematical connections play a crucial role in helping students develop a deeper understanding and enhance their thinking ...
Muhammad Noor Kholid, Rosita Dewi
doaj   +1 more source

Metal‐Organic Nanosheet Gels: Hierarchically Porous Materials for Selective Loading and Differential Release

open access: yesAdvanced Functional Materials, EarlyView.
A suspension of metal‐organic nanosheets was centrifuged to form self‐healing gels with a hierarchically porous structure. The prepared gels were used to selectively capture small molecules from solutions and differentially release them based on their size and charge. Abstract Metal‐organic nanosheets (MONs) are intrinsically porous 2D materials with a
Jiangtian Tan, Jonathan A. Foster
wiley   +1 more source

Ethnomathematics of Pananrang in learning mathematics: Determining auspicious days in the buginese traditional farming system

open access: yesAl-Jabar
Background: Mathematics is closely related to daily human activities due to its evolution alongside cultural advancements. However, the subject is considered complex and distant from students' daily experiences.
Hikmawati Pathuddin, Kamariah Kamariah
doaj   +1 more source

School Finance Reforms, Tax Limits, and Student Performance: Do Reforms Level Up or Dumb Down? [PDF]

open access: yes
During the late 1970s and early 1980s, a majority of states substantially changed the ways in which schools were funded, either directly through court- or legislatively mandated school finance reform, or indirectly through tax and expenditure limits.
D. N. Figlio, T. A. Downes
core  

Ultrafast Transient Absorption Studies of the Dynamics of Free and Coulombically Trapped Polarons in Doped Conjugated Polymers

open access: yesAdvanced Functional Materials, EarlyView.
Transient absorption measurements of doped conjugated polymer films show that small dopant ions create both free and Coulomb‐trapped polarons regardless of polymer morphology, but large dodecaborane‐based dopant ions create only free polarons even though the large ions cause the films to be more disordered.
Eric C. Wu   +10 more
wiley   +1 more source

Ethnomathematics Identification in West Sumatra Rantak Dance Performances

open access: yesUnnes Journal of Mathematics Education
The diversity of traditional dance performances in Indonesia showcases the country's rich cultural heritage. The art of Rantak dance from West Sumatra, Indonesia, is one such cultural treasure that exhibits connections with ethnomathematics.
Yusnizar Yusnizar, Yahfizham Yahfizham
doaj   +1 more source

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