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A novel method is proposed to measure the refractive indices (RIs) of the materials of different transparent solid state media. To exploit the advantage of non-contact measurement laser beam interferometry is used as an effective technique…

物理教育 · 物理学 2024-06-19 Arnab Pal , Kriti R. Sahu , Pradipta Panchadhyayee , Debapriyo Syam

Dependability is an umbrella concept that subsumes many key properties about a system, including reliability, maintainability, safety, availability, confidentiality, and integrity. Various dependability modeling techniques have been…

软件工程 · 计算机科学 2016-06-23 Waqar Ahmed , Osman Hasan , Sofiene Tahar

This paper is concerned with the inverse scattering problem by an unbounded rough surface. A direct imaging method is proposed to reconstruct the rough surface from the scattered near-field Cauchy data generating by point sources and…

数值分析 · 数学 2018-05-01 Xiaoli Liu , Bo Zhang , Haiwen Zhang

We propose a new framework that unifies different fairness measures into a general, parameterized class of convex fairness measures suitable for optimization contexts. First, we propose a new class of order-based fairness measures, discuss…

最优化与控制 · 数学 2025-01-30 Man Yiu Tsang , Karmel S. Shehadeh

Measuring inter-dataset similarity is an important task in machine learning and data mining with various use cases and applications. Existing methods for measuring inter-dataset similarity are computationally expensive, limited, or…

机器学习 · 计算机科学 2025-05-06 Muhammad Rajabinasab , Anton D. Lautrup , Arthur Zimek

Stereoscopic perception is an important part of human visual system that allows the brain to perceive depth. However, depth information has not been well explored in existing saliency detection models. In this letter, a novel saliency…

计算机视觉与模式识别 · 计算机科学 2017-10-17 Runmin Cong , Jianjun Lei , Changqing Zhang , Qingming Huang , Xiaochun Cao , Chunping Hou

Dimples are small concavities imprinted on a flat surface, known to affect heat transfer and also flow separation and aerodynamic drag on bluff bodies when acting as a standard roughness. Recently, dimples have been proposed as a roughness…

流体动力学 · 物理学 2022-07-12 Federica Gattere , Alessandro Chiarini , Maurizio Quadrio

In this fluid dynamics video, we present an overview of the most important results recently obtained in our group using an optical profilometric technique that allows for single-shot global measurement of free-surface deformations. This…

流体动力学 · 物理学 2010-10-19 P. Cobelli , G. Lagubeau , M. Chekroun , A. Przadka , A. Maurel , V. Pagneux , P. Petitjeans

In this work we introduce new scalar field models and study the defect solutions they may engender. The investigation is based on the deformation procedure, which greatly simplify the calculations, leading us to new models together with the…

高能物理 - 理论 · 物理学 2011-03-04 D. Bazeia , M. A. Gonzalez Leon , L. Losano , J. Mateos Guilarte

An interferometer has been used to measure the surface profile of generic object. Frequency scanning interferometry has been employed to provide unambiguous phase readings, to suppress etalon fringes, and to supersede phase-shifting. The…

仪器与探测器 · 物理学 2016-11-21 Marek Peca , Pavel Psota , Petr Vojtíšek , Vít Lédl

Adaptive Finite Element Method (adaptivity) is known to be an effective numerical tool for some ill-posed problems. The key advantage of the adaptivity is the image improvement with local mesh refinements. A rigorous proof of this property…

数学物理 · 物理学 2012-10-30 Larisa Beilina , Michael V. Klibanov

A new deterministic floating-point arithmetic called precision arithmetic is developed to track precision for arithmetic calculations. It uses a novel rounding scheme to avoid excessive rounding error propagation of conventional…

离散数学 · 计算机科学 2025-10-20 Chengpu Wang

We introduce a numerical method for reconstructing a multidimensional surface using the gradient of the surface measured at some values of the coordinates. The method consists of defining a multidimensional spline function and minimizing…

计算物理 · 物理学 2015-05-20 Gergely Endrodi

This short text tried to establish a big picture of what evidential statistics is about and how an ideal inference method should behave. Moreover, by examining shortcomings of some of the currently used methods for measuring evidence and…

统计方法学 · 统计学 2024-11-28 Mahdi Zamani

We consider the inverse problem of determining the geometry of penetrable objects from scattering data generated by one incident wave at a fixed frequency. We first study an orthogonality sampling type method which is fast, simple to…

数值分析 · 数学 2022-07-21 Thu Le , Dinh-Liem Nguyen , Vu Nguyen , Trung Truong

We study the flat geometry of the least degenerate singularity of a singular surface in $\mathbb R^4$, the $I_{1}$ singularity parametrised by $(x,y)\mapsto(x,xy,y^{2},y^{3})$. This singularity appears generically when projecting a regular…

微分几何 · 数学 2018-05-01 Pedro Benedini Riul , Raúl Oset Sinha

It is proved that flatness of an analytic mapping germ from a complete intersection is determined by its sufficiently high jet. As a consequence, one obtains finite determinacy of complete intersections. It is also shown that flatness and…

复变函数 · 数学 2019-08-15 Janusz Adamus , Hadi Seyedinejad

We present a new technique for the interpolation of discretely-sampled non-negat ive scalar fields across regions of missing data. Any set of basis functions can be used, though the method is fastest when they are close to orthogonal. We…

天体物理学 · 物理学 2007-05-23 Will Saunders , Bill E. Ballinger

This text is aimed at undergraduates, or anyone else who enjoys thinking about shapes and numbers. The goal is to encourage the student to think deeply about seemingly simple things. The main objects of study are lines, squares, and the…

动力系统 · 数学 2015-07-10 Diana Davis

This paper deals with the study of collapsing plane symmetric source in the presence of heat flux. For this purpose, we have calculated the Einstein field equations as well as Weyl tensor components. The conditions for the conformal…

综合物理 · 物理学 2015-08-24 G. Abbas , Zahid Ahmad , Hassan Shah