Resistance-time dependence and gauge factor of two-dimensional granular gold films deposited on ?Melinex?

The two-dimensional wave diffraction problem, acoustic or electromagnetic, in which a pulse of step-function time dependence is diffracted by a resistive half-plane is solved by assuming dynamic similarity in the solution.

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Teaching kinematics via arduino based STEM education material

Physics Education ◽

10.1088/1361-6552/ac342d ◽

2021 ◽

Vol 57 (1) ◽

pp. 015010

Author(s):

Atakan Çoban ◽

Mustafa Erol

Keyword(s):

Time Dependence ◽

Stem Education ◽

Error Rate ◽

Educational Environment ◽

Two Dimensional ◽

Education Material ◽

Sample Application ◽

And Mathematics ◽

Engineering Physics ◽

Physical Quantities

Abstract The present study reports an Arduino-based STEM education material that resolves the kinematics of a moving object, specifically focusing on two dimensional motion of the object. Throughout the work, a sample application that can be prepared in a classroom where students are active and including the acquisitions of Technology, Engineering, Physics and Mathematics in a single educational environment. In the study, instantaneous time dependence of the displacements, namely x(t) and y(t) components and the resultant R(t) component, are experimentally measured on a vehicle by using an Arduino UNO, distance sensors and Bluetooth sensor prepared within the scope of a STEM education approach. The ratios between those measured physical quantities and theoretical estimations are found to be %13.1 for the position, %1.4 for the velocity and %7.8 for the acceleration. The error rate of the data was accepted to be reasonable considering highly economical teaching materials.

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Low loss ultra-smooth gold films for two-dimensional material plasmonic devices

10.1117/12.2617527 ◽

2021 ◽

Author(s):

Jie Luo ◽

Chunchao Wen ◽

Zhihong Zhu ◽

Jianfa Zhang

Keyword(s):

Gold Films ◽

Two Dimensional ◽

Low Loss

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The Diffraction of Transient Electro-Magnetic Waves by a Wedge

Proceedings of the Edinburgh Mathematical Society ◽

10.1017/s0013091500010774 ◽

1958 ◽

Vol 11 (2) ◽

pp. 95-103 ◽

Cited By ~ 1

Author(s):

A. C. Butcher ◽

J. S. Lowndes

Keyword(s):

Wave Equation ◽

Time Dependence ◽

Half Plane ◽

Line Source ◽

Time Dependent ◽

Dimensional Case ◽

Two Dimensional ◽

Electro Magnetic ◽

Infinite Wedge ◽

Magnetic Waves

Much of the work on the theory of diffraction by an infinite wedge has been for cases of harmonic time-dependence. Oberhettinger (1) obtained an expression for the Green's function of the wave equation in the two dimensional case of a line source of oscillating current parallel to the edge of a wedge with perfectly conducting walls. Solutions of the time-dependent wave equation have been obtained by Keller and Blank (2), Kay (3) and more recently by Turner (4) who considered the diffraction of a cylindrical pulse by a half plane.

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The half-plane diffraction problem for harmonic time dependence

Proceedings of the Royal Society of London Series A - Mathematical and Physical Sciences ◽

10.1098/rspa.1959.0161 ◽

1959 ◽

Vol 252 (1270) ◽

pp. 411-417 ◽

Cited By ~ 1

Keyword(s):

Electromagnetic Field ◽

Time Dependence ◽

Boundary Value Problems ◽

Half Plane ◽

Mixed Type ◽

Boundary Value ◽

Diffraction Problem ◽

Two Dimensional ◽

Conducting Screen ◽

Plane Diffraction

Green’s functions are obtained for the boundary-value problems of mixed type describing the general two-dimensional diffraction problems at a screen in the form of a half-plane (Sommerfeld’s problem), applicable to acoustically rigid or soft screens, and to the full electromagnetic field at a perfectly conducting screen.

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Crystallization Time Dependence of Nanohybrid Shish-Kebab Structure in HDPE/PA66 Nanofibers Composites via Solution Crystallization

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.110-116.3786 ◽

2011 ◽

Vol 110-116 ◽

pp. 3786-3790

Author(s):

Wen Juan Han ◽

Guo Qiang Zheng ◽

Yan Yan Liang ◽

Chun Tai Liu ◽

Chang Yu Shen

Keyword(s):

Electron Microscopy ◽

Scanning Electron Microscopy ◽

Time Dependence ◽

Isothermal Crystallization ◽

Three Dimensional ◽

Crystallization Time ◽

Two Dimensional ◽

Solution Crystallization ◽

Dimensional Growth ◽

Scanning Electron

In this study, PA66 nanofibers were successfully solution electrospun. The crystalline morphological features of HDPE solution induced by nanofibers were investigated by scanning electron microscopy (SEM). Nanohybrid shish-kebab (NHSK) can be formed in HDPE solution via isothermal crystallization, in which PA66 nanofibers serve as shish and HDPE lamellae act as kebabs surrounding the nanofibers periodically. Additionally, crystallization time has significant effect on the structure of HDPE kebab in NHSK, i.e., as crystallization time increases, the size of the kebab increases and the crystals decorated on PA66 nanofibers exhibit a three-dimensional growth (i.e., aggregate of crystallites) rather than a two-dimensional one (i.e., disc-like lamellae normal to the axis of nanofiber).

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