Results 71 to 80 of about 80,488 (218)
Kalamatika, 2018 This research is a descriptive qualitative approach which aims to describe profile of understanding of pythagoras theorem concept of students based on the difference of field independent and dependent cognitive style.
Nurafni Nurafni +2 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.Enhancing ultrasound transmission through an aberration layer exhibiting mismatched impedance with the surrounding medium possesses great implications in imaging and treatment. In this study, we show that a space‐coiling acoustic metamaterial with judiciously tailored structural profile can help improve impedance matching.
Maral Ghanami +4 more
wiley +1 more source
Drawings of complete multipartite graphs up to triangle flips
Journal of Computational GeometryFor a drawing of a labeled graph, the rotation of a vertex or crossing is the cyclic order of its incident edges, represented by the labels of their other endpoints. The extended rotation system (ERS) of the drawing is the collection of the rotations of
Oswin Aichholzer +7 more
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Advanced Functional Materials, EarlyView.In MOCVD MoS2 memristors, a current compliance‐regulated Ag filament mechanism is revealed. The filament ruptures spontaneously during volatile switching, while subsequent growth proceeds vertically through the MoS2 layers and then laterally along the van der Waals gaps during nonvolatile switching.
Yuan Fa +19 more
wiley +1 more source
Advanced Functional Materials, EarlyView.Ferroelectric tunnel junction devices based on epitaxial undoped ferroelectric HfO2 films demonstrate stable switching endurance of over 106 switching cycles, low write voltages of ±3 V, 16 measured resistance states, and neuromorphic capability.
Markus Hellenbrand +13 more
wiley +1 more source
Policy of village fund in triangle analysis: literature review
Jurnal Ilmiah Ilmu Administrasi PublikImplementation of policies regarding village fund allocation is expected to improve the welfare of village communities. However, the condition of rural communities in various developing countries is still far from prosperous.
Maria Margareta Reginaldis +4 more
doaj +1 more source
Local and global bifurcation of steady states to a general Brusselator model
Advances in Difference Equations, 2019 In this paper, we consider the local and global bifurcation of nonnegative nonconstant solutions of a general Brusselator model {−d1△u=a−(b+1)f(u)+u2v,x∈Ω,−d2△v=bf(u)−u2v,x∈Ω,∂u∂n=∂v∂n=0,x∈∂Ω, $$ \textstyle\begin{cases} -d_{1}\triangle u=a-(b+1)f(u)+u^{2}
Zhongzi Zhao, Ruyun Ma
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Advanced Functional Materials, EarlyView.Significant nanoscale oxygen diffusion coefficient variations are measured in ferroelectric hafnium zirconium oxide films with grain boundaries and electrode interfaces exhibiting values 104 times larger than the grain cores. Overall coefficients are 10X larger for films prepared with metal nitride electrodes compared to refractory metals. New insights
Liron Shvilberg +6 more
wiley +1 more source
A case report of laparoscopic orchopsis for transverse testicular ectopia via the Hesselbach route
Frontiers in PediatricsBackgroundTesticular transverse ectopia (TTE) is a rare congenital abnormality in which both testicles descend into the same hemiscrotum via a solitary inguinal canal.
Xu Zhuofan, Zhao Xudong, Yuan Boxiang
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Historical Foundation and Practical Guideline for Ferroelectric Switching Kinetic Studies
Advanced Functional Materials, EarlyView.The P and U pulses in the conventional PUND measurements are not identical because of the interplay between switching current and the measurement circuit components. This circuit effect can lead to a shift in polarization transients and misinterpreted physics in the switching kinetics.
Yi Liang, Pat Kezer, John T. Heron
wiley +1 more source