Results 51 to 60 of about 144,163 (329)

Item analysis: basic concepts of physics students in geometric optics

Gravity: Jurnal Ilmiah Penelitian dan Pembelajaran Fisika, 2020
The purpose of this study was to analyze students' items and abilities—the analysis for mapping test instruments and students' basic concepts regarding optics subjects before lectures are held. The test participants were 35 physics students. The analysis
Godelfridus Hadung Lamanepa, Rosenti Pasaribu, Claudia M.M. Maing   +2 more
doaj   +1 more source

Refractive Bi-Conic Axicon (Volcone) for Polarization Conversion of Monochromatic Radiation

Photonics, 2022
A new element is proposed for producing an azimuthally polarized beam with a vortex phase dependence. The element is formed by two conical surfaces in such a way that the optical element resembles a mountain with a crater on top, like a volcano (volcanic
Sergey A. Degtyarev, Sergey V. Karpeev, Nikolay A. Ivliev, Yuriy S. Strelkov, Vladimir V. Podlipnov, Svetlana N. Khonina   +5 more
doaj   +1 more source

Innovating Aircraft Repair Processes: The Role of Digitalization in Sustainability

Advanced Engineering Materials, EarlyView.
This research explores how digitalization—by storing detailed non‐destructive testing data in structured DICONDE databases and creating a standard data model of the component—innovates aviation maintenance and repair processes. Coupled with a developed state‐based simulation model, it enables data‐driven, sustainable repair strategies that reduce waste,
Johanna Aigner, Geo Jacob, Florian Raddatz, Gerko Wende   +3 more
wiley   +1 more source

Determination of Angle of Refraction in X-Ray Phase-Contrast Imaging Using Geometric Optics Method

Photonics
The accurate calculation of the angle of refraction of X-rays passing through an object is essential in X-ray phase-contrast imaging. While the wave optics-based method is commonly employed to calculate the angle of refraction, it presents several ...
Jun Yang, Fangke Zong, Haoqi Tang, Yang Du, Rongchang Chen   +4 more
doaj   +1 more source

Machine Optics Studies for the LHC Measurements

, 2014
In this work the properties of scattered protons in the vicinity of the ATLAS Interaction Point (IP1) for various LHC optics settings are discussed. Firstly, the beam elements installed around IP1 are presented.
Trzebinski, M.
core   +1 more source

Process‐Informed Analysis of As‐Built Metal Additive Surface Features

Advanced Engineering Materials, EarlyView.
This article introduces a novel method for feature‐based surface texture characterisation directly incorporating manufacturing variables into the feature extraction workflow. This marks a major step towards identifying process‐specific surface properties and their influence on part function and hence a holistic understanding of process–structure ...
Theresa Buchenau, Adam Thompson, Hauke Brüning, Marc Amkreutz, Bernd Mayer, Samanta Piano   +5 more
wiley   +1 more source

Lensing Point-spread Function of Coherent Astrophysical Sources and Nontrivial Wave Effects

The Astrophysical Journal
Most research on astrophysical lensing has been conducted using the geometric optics framework, where there exists a clear concept of lensing images. However, wave optics effects can be important for coherent sources, e.g., pulsars, fast radio bursts ...
Xun Shi
doaj   +1 more source

Note on the luminosity distance

, 2004
We re-derive a formula relating the areal and luminosity distances, entirely in the framework of the classical Maxwell theory, assuming a geometric-optics type condition.Comment: Section 4 revised, misprints ...
Karkowski, Janusz, Malec, Edward, Wylȩżek, Grzegorz   +2 more
core   +1 more source

Harnessing Fungal Biowelding for Constructing Mycelium‐Engineered Materials

Advanced Engineering Materials, EarlyView.
Mycelium‐bound composites (MBCs) offer low‐carbon alternatives for construction, yet interfacial bonding remains a critical challenge. This review examines fungal biowelding as a biocompatible adhesive, elucidating mycelium‐mediated interfacial mechanisms and their role in material assembly. Strategies to optimize biowelding are discussed, highlighting
Xue Brenda Bai, Xinrui Sarah Niu, Zhao Qin   +2 more
wiley   +1 more source

Plane SPDC-Quantum Mirror [PDF]

, 2013
In this paper the kinematical correlations from the phase conjugated optics (equivalently with crossing symmetric spontaneous parametric down conversion (SPDC) phenomena) in the nonlinear crystals are used for the description of a new kind of optical ...
Ion, D. B., Ion, M. L. D.
core