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Fluids at supercritical pressures exhibit large variations in density near the pseudo critical line, such that buoyancy plays a crucial role in their fluid dynamics. Here, we experimentally investigate heat transfer and turbulence in…

流体动力学 · 物理学 2025-06-11 Marko Draskic , Jerry Westerweel , Rene Pecnik

Velocity and temperature distributions are both crucial for modeling compressible wall-bounded turbulent flows. The compressible law of the wall for velocity has been extensively examined through velocity transformations. However, a…

流体动力学 · 物理学 2026-03-06 Youjie Xu , Steffen J. Schmidt , Nikolaus A. Adams

We conducted observing system simulation experiments (OSSEs) for radio occultation measurements (RO) among small satellites, which are expected to be useful for future Venus missions. The effectiveness of the observations based on realistic…

The discovery of high-density liquid (HDL) and low-density liquid (LDL) water has been a major success of molecular simulations, yet extending this analysis to interfacial water is challenging due to conventional order parameters assuming…

软凝聚态物质 · 物理学 2025-09-03 Pal Jedlovszky , Christoph Dellago , Marcello Sega

The discovery of topological phases of matter, initially driven by theoretical advances in quantum condensed matter physics, has been recently extended to classical wave systems, reaching out to a wealth of novel potential applications in…

介观与纳米尺度物理 · 物理学 2023-06-30 Nicolas Laforge , Vincent Laude , Franck Chollet , Abdelkrim Khelif , Muamer Kadic , Yuning Guo , Romain Fleury

In this work, we use a tempering-based adaptive particle filter to infer from a partially observed stochastic rotating shallow water (SRSW) model which has been derived using the Stochastic Advection by Lie Transport (SALT) approach. The…

数值分析 · 数学 2022-01-03 Peter Jan van Leeuwen , Dan Crisan , Oana Lang , Roland Potthast

Improving the accuracy of soil moisture estimation is required for advancing irrigation scheduling and water conservation efforts. Central to this task are soil hydraulic parameters, which govern moisture dynamics but are rarely known…

系统与控制 · 电气工程与系统科学 2025-06-06 Bernard T. Agyeman , Erfan Orouskhani , Mohamed Naouri , Willemijn Appels , Maik Wolleben , Jinfeng Liu , Sirish L. Shah

The surface soil moisture is a key variable to describe the exchange of water and energy between the land and the atmosphere. In hydrology, and meteorology, the amount of water in the upper soil layers permits (0-5 cm from the surface) the…

We present a new characterisation technique for atomic vapor cells, combining time-domain measurements with absorption imaging to obtain spatially resolved information on decay times, atomic diffusion and coherent dynamics. The technique is…

The perfectly matched layer(PML) is commonly used in wave propagation, radiation and diffraction problems in unbounded space domains. A new implementation scheme of PML is presented. The PML formulation is pre-defined, and the wave field…

地球物理 · 物理学 2024-04-24 Yuqin Luo , Xintong Dong , Shiqi Dong , Tie Zhong , Yu Zhang , Ying Wang , Ning Hu

Large transverse momentum distributions of identified particles observed at RHIC are analyzed by a relativistic stochastic model in the three dimensional (non-Euclidean) rapidity space. A distribution function obtained from the model is…

高能物理 - 唯象学 · 物理学 2015-06-25 N. Suzuki , M. Biyajima

Based on measurements with the Effelsberg 100-m telescope, a multi-line study of molecular species is presented toward the gravitational lens system PKS1830-211. Obtaining average radial velocities and performing Large Velocity Gradient…

宇宙学与河外天体物理 · 物理学 2015-05-13 C. Henkel , K. M. Menten , M. T. Murphy , N. Jethava , V. V. Flambaum , J. A. Braatz , S. Muller , J. Ott , R. Q. Mao

Cosmic ray air showers emit radio pulses at MHz frequencies, which can be measured with radio antenna arrays - like LOPES at the Karlsruhe Institute of Technology in Germany. To improve the understanding of the radio emission, we test…

In this paper, a novel water-based reconfigurable frequency selective rasorber (FSR) at microwave band is proposed, which has a thermally tunable absorption band above the transmission band. The water-based FSR consists of a bandpass type…

应用物理 · 物理学 2020-12-02 Xiangxi Yan , Xiangkun Kong , Qi Wang , Lei Xing , Feng Xue , Yan Xu , Shunliu Jiang

The work contains the description of two narrow IR-bands observational data of total lunar eclipse of March, 3, 2007, one- and two-dimensional procedures of radiative transfer equation solution. The results of the procedure are the…

大气与海洋物理 · 物理学 2009-11-13 Oleg S. Ugolnikov , Igor A. Maslov

High-resolution Very-Long-Baseline Interferometry observations of active galactic nuclei have revealed asymmetric structures in the jets of radio galaxies. These asymmetric structures may be due to internal asymmetries in the jet, could be…

高能天体物理现象 · 物理学 2018-01-17 C. M. Fromm , M. Perucho , O. Porth , Z. Younsi , E. Ros , Y. Mizuno , J. A. Zensus , L. Rezzolla

Through basin-scale circulations, the ocean regulates global distributions of heat, nutrients, and greenhouse gases. To properly predict the future of the ocean under climate change, we need to develop a thorough understanding of the…

流体动力学 · 物理学 2024-08-13 Zachary Taebel , Alberto Scotti , Pierre-Yves Passaggia , Dylan Bruney

Aims: Spectrally resolved circumstellar H2O(1_10 - 1_01) lines have been obtained towards three M-type AGB stars using the Odin satellite. This provides additional strong constrains on the properties of circumstellar H2O and the…

We study the variability of major atmospheric absorption features in the disk-integrated spectra of the Earth with future application to Earth-analogs in mind, concentrating on the diurnal timescale. We first analyze observations of the…

地球与行星天体物理 · 物理学 2015-06-12 Yuka Fujii , Edwin L. Turner , Yasushi Suto

Long-Short-Term-Memory (LSTM) networks have been used extensively for time series forecasting in recent years due to their ability of learning patterns over different periods of time. In this paper, this ability is applied to learning the…

信号处理 · 电气工程与系统科学 2020-06-30 Mayank Jain , Shilpa Manandhar , Yee Hui Lee , Stefan Winkler , Soumyabrata Dev