Results 51 to 60 of about 225,209 (281)

Ellipses [PDF]

Transactional Analysis Journal, 2017
The author reviews the literature on supervision and the use of autoethnography as a research method.
openaire   +2 more sources

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

Advanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source

Numerical Calculation of Area of Elliptical Segments

Mathematics, 2020
In this paper, we introduce the notion of an elliptical segment as some analogy of the circular segment and we focus on the problem of calculation of its area.
Dusan Vallo, Jozef Fulier, Lucia Rumanova   +2 more
doaj   +1 more source

Experimental characterization of frequency dependent squeezed light

, 2005
We report on the demonstration of broadband squeezed laser beams that show a frequency dependent orientation of the squeezing ellipse. Carrier frequency as well as quadrature angle were stably locked to a reference laser beam at 1064nm.
Alexander Franzen, Boris Hage, D. F. Walls, G. Breitenbach, Henning Vahlbruch, K. S. Thorne, K. Schneider, Karsten Danzmann, Nico Lastzka, R. W. P. Drever, Roman Schnabel, Simon Chelkowski, U. Leonhardt, V. B. Braginsky, W. G. Unruh   +14 more
core   +1 more source

Bias‐Free Highly Efficient and Stable Dye‐Sensitized Photoelectrochemical Cells via Cascade Charge Transfer

Advanced Functional Materials, EarlyView.
A buried‐junction DSPEC design is introduced that leverages cascade charge transfer to enhance efficiency, stability, and versatility. This approach facilitates effective charge transfer and minimizes recombination losses, leading to significant improvements.
Jun‐Hyeok Park, Kyounglim Kim, Jinyoung Lee, Sarang Kim, Gwangsu Yoon, So Yeon Yoon, Jeong Kyeong Lee, Ji‐Wook Jang, Tae‐Hyuk Kwon   +8 more
wiley   +1 more source

A New Approximation for the Perimeter of an Ellipse

Algorithms
We consider the problem of approximating the perimeter of an ellipse, for which there is no known finite formula, in the context of high-precision performance.
Pablo Moscato, Andrew Ciezak
doaj   +1 more source

On the Images of Ellipses Under Similarities

Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2013
We consider ellipses corresponding to any norm function on the complex plane and determine their images under the similarities which are special Möbius transformations.
Özgür Nihal Yilmaz
doaj   +1 more source

Modulating Two‐Photon Absorption in a Pyrene‐Based MOF Series: An In‐Depth Investigation of Structure–Property Relationships

Advanced Functional Materials, EarlyView.
This study investigates H4TBAPy‐based metal–organic frameworks (MOFs) ‐ NU‐1000, NU‐901, SrTBAPy, and BaTBAPy ‐ for multiphoton absorption (MPA) performance. It observes topology‐dependent variations in the 2PA cross‐section, with BaTBAPy exhibiting the highest activity.
Simon N. Deger, Helmy Pacheco Hernandez, Yang Cui, Hongxing Hao, Vanessa Ramm, David C. Mayer, Khai‐Nghi Truong, Roland A. Fischer, Jürgen Hauer, Mariana Kozlowska, Alexander Pöthig   +10 more
wiley   +1 more source

Sebuah Telaah Elips dan Lingkaran Melalui Sebuah Pendekatan Aljabar Matriks

Cauchy: Jurnal Matematika Murni dan Aplikasi, 2010
In this article, ellipse and circle will be learnt in depth via matrix algebra approach. The discussion of the both is started from their classic definition continued by surveying ellipse in matrix form.
Rahmat Sagara
doaj   +1 more source

A Fast and High-Precision Ellipse Detection Method Based on the Candy’s Theorem

IEEE Access, 2023
Ellipse detection is one of the important parts of intelligent manufacturing, and the efficient detection of elliptical contours corresponding to hole parts is the prerequisite before performing practical applications.
Xiujun Fang, Enzheng Zhang, Bingchen Li, Bin Zhai   +3 more
doaj   +1 more source