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3D printing allows rapid fabrication of complex objects from digital designs. One 3D-printing process, direct laser writing, polymerises a light-sensitive material by steering a focused laser beam through the shape of the object to be…

Adaptive (or deformable) mirrors are widely used as wavefront correctors in adaptive optics systems. The optical calibration of an adaptive mirror is a fundamental step during its life-cycle: the process is in facts required to compute a…

天体物理仪器与方法 · 物理学 2022-10-11 Runa Briguglio , Marco Xompero , Armando Riccardi

Neural implicit surface reconstruction has achieved remarkable progress recently. Despite resorting to complex radiance modeling, state-of-the-art methods still struggle with textureless and specular surfaces. Different from RGB images,…

计算机视觉与模式识别 · 计算机科学 2024-09-24 Guangcheng Chen , Yicheng He , Li He , Hong Zhang

We present new policy mirror descent (PMD) methods for solving reinforcement learning (RL) problems with either strongly convex or general convex regularizers. By exploring the structural properties of these overall highly nonconvex…

机器学习 · 计算机科学 2022-04-08 Guanghui Lan

Polarizing microscopy brought about many advancements in the science of liquid crystals and other soft materials, including those of biological origin. Recent developments in optics and computer-based analysis enabled a new generation of…

光学 · 物理学 2022-11-02 Mojtaba Rajabi , Oleg Lavrentovich , Michael Shribak

A common technique used in factories to shape metal panels is shot peen forming. The impacts between the hard steel shot and the softer metal of the panel cause localized plastic deformation used to improve the fatigue properties of the…

计算工程、金融与科学 · 计算机科学 2025-05-14 Conor Rowan

Forecast verification plays a crucial role in the development cycle of operational numerical weather prediction models. At the same time, verification remains a challenge as the traditionally used non-spatial forecast quality metrics…

大气与海洋物理 · 物理学 2026-05-25 Gregor Skok , Katarina Kosovelj

Scanning probe microscopy (SPM) images of regularly arranged spatially periodic objects can be processed crystallographically. The resulting information may be used to remove from the SPM image distortions that are due to a less than…

材料科学 · 物理学 2020-12-16 Peter Moeck

Harnessing electron spin is crucial in developing energy-saving and high-speed devices for the next generation. In this scheme, visualizing spin-polarized electronic states aids in designing and developing new materials and devices.…

材料科学 · 物理学 2024-04-03 Koichiro Yaji , Shunsuke Tsuda

This paper deals with combination of two modern engineering methods in order to optimise the shape of a representative casting product. The product being analysed is a sling, which is used to attach pulling rope in timber transportation.…

计算工程、金融与科学 · 计算机科学 2014-04-22 Nermina Zaimovic-Uzunovic , Samir Lemes , Damir Curic , Alan Topcic

Scanning probe microscopy (SPM) is a powerful technique for mapping nanoscale surface properties through tip-sample interactions. Thermal scanning-probe lithography (tSPL) is an advanced SPM variant that uses a silicon tip on a heated…

By integrating a phase-only Spatial Light Modulator (SLM) into the illumination arm of a cylindrical-lens-based Selective Plane Illumination Microscope (SPIM), we have created a versatile system able to deliver high quality images by…

生物物理 · 物理学 2018-08-10 Chiara Garbellotto , Jonathan M. Taylor

We derive a formula for the light field of a monochromatic plane wave that is truncated and reflected by a spherical mirror. Our formula is valid even for deep mirrors, where the aperture radius approaches the radius of curvature. We apply…

光学 · 物理学 2009-11-13 J. Goldwin , E. A. Hinds

We consider the problem of minimizing the sum of an average function of a large number of smooth convex components and a general, possibly non-differentiable, convex function. Although many methods have been proposed to solve this problem…

最优化与控制 · 数学 2019-01-01 Le Thi Khanh Hien , Cuong V. Nguyen , Huan Xu , Canyi Lu , Jiashi Feng

Based on smoothing techniques, we propose two new methods to solve linear complementarity problems (LCP) called TLCP and Soft-Max. The idea of these two new methods takes inspiration from interior-point methods in optimization. The…

最优化与控制 · 数学 2021-04-28 El Hassene Osmani , Mounir Haddou , Lina Abdallah , Naceurdine Bensalem

Quantum parameter estimation, the ability to precisely obtain a classical value in a quantum system, is very important to many key quantum technologies. Many of these technologies rely on an optical probe, either coherent or squeezed states…

量子物理 · 物理学 2015-05-14 Trevor A. Wheatley , Mankei Tsang , Ian R. Petersen , Elanor H. Huntington

We propose a group sparse optimization model for inpainting of a square-integrable isotropic random field on the unit sphere, where the field is represented by spherical harmonics with random complex coefficients. In the proposed…

最优化与控制 · 数学 2022-05-10 Chao Li , Xiaojun Chen

Present protocols for obtaining the ultimate magnetic sensitivity of optically pumped magnetometers (OPMs) utilizing alkali-metal ensembles rely on uncorrelated atoms in stretched states. A new approach for calculating the spin projection…

量子物理 · 物理学 2024-02-23 K. Mouloudakis , V. Koutrouli , I. K. Kominis , M. W. Mitchell , G. Vasilakis

Diffusion problems with anisotropic features arise in the various areas of science and engineering fields. As a Lagrangian mesh-less method, SPH has a special advantage in addressing the diffusion problems due to the the benefit of dealing…

计算工程、金融与科学 · 计算机科学 2024-10-14 Xiaojing Tang , Oskar Haidn , Xiangyu Hu

We present a \emph{mirror-free} mirror prox (MFMP) algorithm, which extends the classic approach of Nemirovski (2004) to allow for proximal-like updates without the explicit need for a mirror map. We further analyze the convergence of our…

最优化与控制 · 数学 2026-03-24 Abhijeet Vyas , Brian Bullins