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A WWW interface for the simulation of spectral energy distributions of optically thin dust configurations with an embedded radiative source is presented. The density distribution, radiative source, and dust parameters can be selected either…

天体物理学 · 物理学 2009-11-11 S. Wolf , L. A. Hillenbrand

In chemical processing and bioprocessing, conventional online sensors are limited to measure only basic process variables like pressure and temperature, pH, dissolved O and CO$_2$ and viable cell density (VCD). The concentration of other…

定量方法 · 定量生物学 2020-05-07 Semion Rozov

The Ca II H & K lines are strong chromospheric diagnostics that can be used to determine the temperature stratification and magnetic structure of the solar atmosphere. The Atacama Large Millimetre/Submillimetre Array (ALMA) offers…

太阳与恒星天体物理 · 物理学 2024-05-09 Sneha Pandit , Sven Wedemeyer , Mats Carlsson

Abnormality detection and localization (ADL) have been studied widely in wireless sensor networks (WSNs) literature, where the sensors use electromagnetic waves for communication. Molecular communication (MC) has been introduced as an…

Lyman $\alpha$ (Ly$\alpha$) emission from star-forming galaxies is an important tool to study a large range of astrophysical questions: it has the potential to carry information about the source galaxy, its nearby circumgalactic medium, and…

星系天体物理 · 物理学 2022-01-11 Axel Runnholm , Max Gronke , Matthew Hayes

Searching for potential active compounds in large databases is a necessary step to reduce time and costs in modern drug discovery pipelines. Such virtual screening methods seek to provide predictions that allow the search space to be…

生物大分子 · 定量生物学 2023-05-23 Rafael Mena-Yedra , Juana L. Redondo , Horacio Pérez-Sánchez , Pilar M. Ortigosa

Dynamic metasurface antennas (DMAs) are emerging as a promising technology to enable energy-efficient, large array-based multi-antenna systems. This paper presents a simple channel estimation scheme for the downlink of a multiple-input…

信号处理 · 电气工程与系统科学 2026-03-17 Amarilton L. Magalhães , Fazal E-Asim , André L. F. de Almeida , A. Lee Swindlehurst

The Atacama Large Millimeter/submillimeter Array (ALMA), presently under construction, is a revolutionary astronomical interferometer, that will operate at (sub)millimeter wavelengths. With unprecedented sensitivity, resolution, and imaging…

天体物理仪器与方法 · 物理学 2010-10-19 V. Casasola , J. Brand

We describe the calibration and imaging heuristics developed and deployed in the ALMA interferometric data processing pipeline, as of ALMA Cycle 9. The pipeline software framework is written in Python, with each data reduction stage layered…

We present ELSA, a new modular software package, written in C, to analyze and manage spectroscopic data from emission-line objects. In addition to calculating plasma diagnostics and abundances from nebular emission lines, the software…

天体物理学 · 物理学 2009-11-11 M. D. Johnson , J. S. Levitt , R. B. C. Henry , K. B. Kwitter

This letter develops a one-dimensional (1D) diffusion-based molecular communication system to analyze channel responses between a single transmitter (TX) and two fully-absorbing receivers (RXs). Incorporating molecular degradation in the…

新兴技术 · 计算机科学 2020-03-24 Xinyu Huang , Yuting Fang , Adam Noel , Nan Yang

We describe a new software package for simulating channelised, high-time resolution data streams from radio telescopes. The software simulates data from the telescope and observing system taking into account the observation strategy,…

Remarkable effectiveness of the channel or spatial attention mechanisms for producing more discernible feature representation are illustrated in various computer vision tasks. However, modeling the cross-channel relationships with channel…

计算机视觉与模式识别 · 计算机科学 2023-06-07 Daliang Ouyang , Su He , Guozhong Zhang , Mingzhu Luo , Huaiyong Guo , Jian Zhan , Zhijie Huang

Multi-messenger astronomy is becoming the key to understanding the Universe from a comprehensive perspective. In most cases, the data and the technology are already in place, therefore it is important to provide an easily-accessible package…

天体物理仪器与方法 · 物理学 2015-12-07 M. Pilia , A. Trois , A. P. Pellizzoni , M. Bachetti , G. Piano , A. Poddighe , E. Egron , M. N. Iacolina , A. Melis , R. Concu , A. Possenti , D. Perrodin

Dynamic linear models (DLM) offer a very generic framework to analyse time series data. Many classical time series models can be formulated as DLMs, including ARMA models and standard multiple linear regression models. The models can be…

统计方法学 · 统计学 2019-08-20 Marko Laine

We present zELDA(redshift Estimator for Line profiles of Distant Lyman-Alpha emitters), an open source code to fit Lyman-Alpha (Lya) line profiles. The main motivation is to provide the community with an easy to use and fast tool to analyze…

星系天体物理 · 物理学 2021-12-22 Siddhartha Gurung-Lopez , Max Gronke , Shun Saito , Silvia Bonoli , Alvaro A. Orsi

The sensitivity of ALMA makes it possible to detect thermal mm/submm emission from small/distant Solar System bodies at the sub-mJy level. Measured fluxes are primarily sensitive to the objects' diameters, but deriving precise sizes is…

地球与行星天体物理 · 物理学 2017-12-06 E. Lellouch , R. Moreno , T. Müller , S. Fornasier , P. Santos-Sanz , A. Moullet , M. Gurwell , J. Stansberry , R. Leiva , B. Sicardy , B. Butler , J. Boissier

High-resolution observations of the solar chromosphere at millimeter wavelengths are now possible with the Atacama Large Millimeter Array (ALMA), promising to tackle many open problems in solar physics. Observations from other ground and…

太阳与恒星天体物理 · 物理学 2018-12-12 João M. da Silva Santos , Jaime de la Cruz Rodríguez , Jorrit Leenaarts

We analyze theoretically and experimentally how nonlinear differential-transmission spectroscopy of a lambda-system medium can provide quantitative understanding of the optical dipole moments and transition energies. We focus on the…

材料科学 · 物理学 2015-01-07 J. P. de Jong , A. R. Onur , D. Reuter , A. D. Wieck , C. H. van der Wal

The Atacama Large Millimeter-Submillimeter Array (ALMA) has opened a new window for studying the Sun via high-resolution high-sensitivity imaging at millimeter wavelengths. In this contribution I review the capabilities of the instrument…

太阳与恒星天体物理 · 物理学 2019-02-13 Maria Loukitcheva