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相关论文: Optimization of Spatial Dose Distribution for Cont…

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Equivariant diffusion models have achieved impressive performance in 3D molecule generation. These models incorporate Euclidean symmetries of 3D molecules by utilizing an SE(3)-equivariant denoising network. However, specialized equivariant…

机器学习 · 计算机科学 2025-07-01 Yuhui Ding , Thomas Hofmann

We propose a sampling scheme on the sphere and develop a corresponding spherical harmonic transform (SHT) for the accurate reconstruction of the diffusion signal in diffusion magnetic resonance imaging (dMRI). By exploiting the antipodal…

医学物理 · 物理学 2015-02-26 Alice P. Bates , Zubair Khalid , Rodney A. Kennedy

We exploit free-space interactions between electron beams and tailored light fields to imprint on-demand phase profiles on the electron wave functions. Through rigorous semiclassical theory involving a quantum description of the electrons,…

量子物理 · 物理学 2021-03-31 F. Javier García de Abajo , Andrea Konečná

The recent development of Liquid Phase Exfoliation (LPE) of 2D materials has enabled the formulation of inks with rheological properties adapted to numerous liquid deposition methods. This has allowed the fabrication of various types of…

材料科学 · 物理学 2017-08-10 Camille Moisan , Zahra Gholamvand , Gabriel Monge , Karim Inal , Gilles Dennler

Radiation therapy serves as an effective and standard method for cancer treatment. Excellent radiation therapy plans always rely on high-quality dose distribution maps obtained through repeated trial and error by experienced experts.…

图像与视频处理 · 电气工程与系统科学 2023-12-12 Linjie Fu , Xia Li , Xiuding Cai , Yingkai Wang , Xueyao Wang , Yu Yao , Yali Shen

The Scanning electron microscope (SEM) and Electron-Dispersive Spectroscope (EDS) are two highly effective instruments in the field of nanoscience and nanotechnology. The quality of these instruments is determined by various factors, with…

应用物理 · 物理学 2023-10-24 Hamidreza Moradi , Fatemeh Mehradnia

The inverse design of metasurfaces faces inherent challenges due to the nonlinear and highly complex relationship between geometric configurations and their electromagnetic behavior. Traditional optimization approaches often suffer from…

Experiments using polarized $^{3}He$ atom beams to search for short range spin dependent forces are proposed. High intensity, high polarization, small beam size $^{3}He$ atom beams have been successfully produced and used in surface science…

仪器与探测器 · 物理学 2015-06-22 H. Yan

Carbon ion beam radiotherapy enables a very localised dose deposition. However, already small changes in the patient geometry or positioning errors can significantly distort the dose distribution. A live monitoring system of the beam…

Statistics and dynamics of 2D rogue waves in a broad-area semiconductor laser with an intracavity saturable absorber are numerically investigated under the effect of transverse carrier diffusion. We show that lateral diffusion of carriers…

光学 · 物理学 2021-08-23 Kamel Talouneh , Reza Kheradmand , Giovanna Tissoni , Mansour Eslami

Equilibrium adsorption of disk-like particles on patterned adhesive surfaces is studied using Monte Carlo simulations. The surface is represented as a two-dimensional plane with circular adhesive domains arranged either regularly or…

软凝聚态物质 · 物理学 2026-05-05 Nazar Kukarkin , Taras Patsahan

The paper presents a novel concept of a 3D structural metasurface with mechanically morphing capability that can be used as a transmit- or reflect-array to manipulate electromagnetic beams for applications in RF sensing and communications…

空间物理 · 物理学 2024-08-22 Aakash Bansal , William Whittow

We report experiments investigating the behaviour of micron-scale fluid droplets jetted onto surfaces patterned with lyophobic and lyophilic stripes. The final droplet shape depends on the droplet size relative to that of the stripes. In…

软凝聚态物质 · 物理学 2007-05-23 J. Leopoldes , A. Dupuis , D. G. Bucknall , J. M. Yeomans

We consider the shape optimization of flow fields for electrochemical cells. Our goal is to improve the cell by modifying the shape of its flow field. To do so, we introduce simulation models of the flow field with and without the porous…

Exploiting the millimeter wave (mmWave) band has recently attracted considerable attention as a potential solution to widespread deployment of device-to-device (D2D) communication challenges, namely, spectrum scarcity and interference.…

信号处理 · 电气工程与系统科学 2019-06-17 Niloofar Bahadori , Nima Namvar , Brian Kelley , Abdollah Homaifar

Fully energy-filtered X-ray photoelectron emission microscopy is used to analyze the spatial distribution of the silicon sub-oxide structure at the SiO2/Si interface as a function of underlying doping pattern. Using a spectroscopic…

材料科学 · 物理学 2012-11-21 F. de la Peña , N. Barrett , L. F. Zagonel , M. Walls , O. Renault

Real-space mapping of doping concentration in semiconductor devices is of great importance for the microelectronic industry. In this work, a scanning microwave impedance microscope (MIM) is employed to resolve the local conductivity…

介观与纳米尺度物理 · 物理学 2013-01-08 Worasom Kundhikanjana , Yongliang Yang , Qiaochu Tang , Kun Zhang Keji Lai , Yue Ma , Mike Kelly , Xinxin Li , Zhi-Xun Shen

We use various electrode layouts to tailor the profile of the electric field in a two-dimensional (2D) dielectric-barrier-discharge system, thereby creating spatial templates for the lateral distribution of discharge filaments. Our…

等离子体物理 · 物理学 2013-05-07 Shaun Alsum , Margeaux Carter , Andrew Hess , Jacob Lampen , Matthew Walhout

This work deals with shape optimization of electric machines using isogeometric analysis. Isogeometric analysis is particularly well suited for shape optimization as it allows to easily modify the geometry without remeshing the domain. A…

计算工程、金融与科学 · 计算机科学 2021-06-03 Melina Merkel , Peter Gangl , Sebastian Schöps

Dose painting has been developed to modulate the required dose in the target area without increasing the toxicity in healthy areas. Apart from determining the accurate location and size of tumors, quantitative functional imaging can be used…

医学物理 · 物理学 2020-11-24 Yaru Pang , Gary Royle , Spyros Manolopoulos
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