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We present the first results of an observational programme undertaken to map the fine structure line emission of singly ionized carbon ([CII] 157.7409 micron) over extended regions using a Fabry Perot spectrometer newly installed at the…

天体物理学 · 物理学 2009-11-07 B. Mookerjea , S. K. Ghosh , H. Kaneda , T. Nakagawa , D. K. Ojha , T. N. Rengarajan , H. Shibai , R. P. Verma

Global ambient air pollution, a transboundary challenge, is typically addressed through interventions relying on data from spatially sparse and heterogeneously placed monitoring stations. These stations often encounter temporal data gaps…

机器学习 · 计算机科学 2024-02-19 Liam J Berrisford , Hugo Barbosa , Ronaldo Menezes

Even distribution of carriers allows to maximize optical gain of the Optically-Pumped Vertical External Cavity Surface Emitting Laser. In this paper we show how to distribute the quantum wells and blocking layers in order to compensate the…

光学 · 物理学 2012-04-09 M. Wasiak

Statistical methodology for the design and analysis of clinical Phase II dose response studies, with related software implementation, are well developed for the case of a normally distributed, homoscedastic response considered for a single…

统计方法学 · 统计学 2014-05-09 José Pinheiro , Björn Bornkamp , Ekkehard Glimm , Frank Bretz

Stereotactic body radiation therapy (SBRT) for pancreatic cancer requires a skillful approach to deliver ablative doses to the tumor while limiting dose to the highly sensitive duodenum, stomach, and small bowel. Here, we develop…

L\"uscher has suggested a method to determine phase shifts from the finite volume dependence of the two-particle energy spectrum. We apply this to two models in d=2: (a) the Ising model, (b) a system of two Ising fields with different mass…

高能物理 - 格点 · 物理学 2009-10-22 C. R. Gattringer , I. Hip , C. B. Lang

The aim of this paper is to understand the formation of the OI line at 7772 \AA\ in the solar chromosphere. We used SST/CRISP observations to observe OI 7772 \AA\ in several places around the solar limb. We compared the observations with…

太阳与恒星天体物理 · 物理学 2017-08-02 Hiva Pazira , D. Kiselman , J. Leenaarts

Radar targets are traditionally modelled as point target reflectors, even in the near-field region. Yet, for radar systems operating at high carrier frequencies and small distances, traditional radar propagation models do not accurately…

信号处理 · 电气工程与系统科学 2024-03-28 François De Saint Moulin , Guillaume Thiran , Christophe Craeye , Luc Vandendorpe , Claude Oestges

Using the specific model of a system of like charged ions confined between two planar like charged surfaces, we compare the predictions for the energy and density profile of four simulation methods available to treat the long range Coulomb…

统计力学 · 物理学 2007-05-23 M. Mazars , J-M. Caillol , J. -J. Weis , D. Levesque

This paper proposes a novel framework of resource allocation in intelligent reflecting surface (IRS) aided multi-cell non-orthogonal multiple access (NOMA) networks, where a sum-rate maximization problem is formulated. To address this…

信号处理 · 电气工程与系统科学 2020-12-08 Wanli Ni , Xiao Liu , Yuanwei Liu , Hui Tian , Yue Chen

Optical emission spectroscopy is used to study the dynamics of the plasma generated by pulsed-laser irradiation of a MgB2 target, both in vacuum and at different Ar buffer gas pressures. The analysis of the time-resolved emission of…

超导电性 · 物理学 2009-11-07 S. Amoruso , R. Bruzzese , N. Spinelli , R. Velotta , X. Wang , C. Ferdeghini

Surfaces sputtered by ion beam bombardment have been known to exhibit patterns whose behavior is modeled with stochastic partial differential equations. However, we apply a new approach by the use of the famous Lorentz equations to simulate…

材料科学 · 物理学 2013-01-01 R. O. Akande , O. E. Oyewande

We demonstrate that the matter density distribution in the surface region is determined well by the use of the relatively low-intensity beams that become available at the upcoming radioactive beam facilities. Following the method used in…

核理论 · 物理学 2009-11-07 Akihisa Kohama , Ryoichi Seki , Akito Arima , Shuhei Yamaji

The application of intelligent reflecting surface (IRS) depends on the knowledge of channel state information (CSI), and has been hindered by the heavy overhead of channel training, estimation, and feedback in fast-changing channels. This…

信息论 · 计算机科学 2022-06-16 Yashuai Cao , Tiejun Lv , Wei Ni

The antiProton Unstable Matter Annihilation experiment (PUMA) at CERN aims at investigating the nucleon composition in the matter density tail of radioactive as well as stable isotopes by use of low-energy antiproton-nucleon annihilation…

仪器与探测器 · 物理学 2023-11-29 M. Schlaich , J. Fischer , P. Fischer , C. Klink , A. Obertelli , A. Schmidt , L. Schweikhard , F. Wienholtz

Purpose: Commercial UHDR platforms deliver Ultra-High Dose Rate (UHDR) doses at discrete combinations of pulse parameters including pulse width (PW), pulse repetition frequency (PRF) and number of pulses (N), which dictate unique…

Exposure to cosmic radiation is a major concern in space exploration. On the Martian surface, a complex radiation field is present, formed by a constant influx of galactic cosmic radiation and the secondary particles produced by their…

空间物理 · 物理学 2024-09-04 Miguel Ralha , Pedro Teles , Nuno Santos , Daniel Matthiä , Thomas Berger , Marta Cortesão

The conventional direction of arrival (DOA) estimation methods are performed with multiple receiving channels. In this paper, a changeling DOA estimation problem is addressed in a different scenario with only one full-functional receiving…

信号处理 · 电气工程与系统科学 2022-03-22 Peng Chen , Zhimin Chen , Beixiong Zheng , Xianbin Wang

Offline Reinforcement Learning (RL) aims to learn a near-optimal policy from a fixed dataset of transitions collected by another policy. This problem has attracted a lot of attention recently, but most existing methods with strong…

机器学习 · 计算机科学 2023-05-23 Germano Gabbianelli , Gergely Neu , Nneka Okolo , Matteo Papini

Exciton diffusion length plays a vital role in the function of opto-electronic devices. Oftentimes, the domain occupied by an organic semiconductor is subject to surface measurement error. In many experiments, photoluminescence over the…

数值分析 · 数学 2017-12-15 Jingrun Chen , Ling Lin , Zhiwen Zhang , Xiang Zhou