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Pinched flow fractionation is shown to be an efficient and selective way to quickly separate particles by size in a very polydisperse semi-concentrated suspension. In an effort to optimize the method, we discuss the quantitative influence…

Fluid Dynamics · Physics 2012-04-17 Aparna Srivastav , Thomas Podgorski , Gwennou Coupier

Iterative methods for solving large sparse systems of linear equations are widely used in many HPC applications. Extreme scaling of these methods can be difficult, however, since global communication to form dot products is typically…

Mathematical Software · Computer Science 2020-09-29 Nick Brown , J. Mark Bull , Iain Bethune

External injection of electron bunches longer than the plasma wavelength in a laser wakefield accelerator can lead to the generation of femtosecond ultrarelativistic bunches with a couple of percent energy spread. Extensive study has been…

Plasma Physics · Physics 2009-07-02 M. J. H. Luttikhof , A. G. Khachatryan , F. A. van Goor , K. -J. Boller

Multi-stream carrier aggregation is a key technology to expand bandwidth and improve the throughput of the fifth-generation wireless communication systems. However, due to the diversified propagation properties of different frequency bands,…

Systems and Control · Electrical Eng. & Systems 2022-08-23 Jun Yu , Shunqing Zhang , Jiayun Sun , Shugong Xu , Shan Cao

In this work, we present novel protocols over rings for semi-honest secure three-party computation (3PC) and malicious four-party computation (4PC) with one corruption. While most existing works focus on improving total communication…

Cryptography and Security · Computer Science 2025-05-22 Christopher Harth-Kitzerow , Ajith Suresh , Yongqin Wang , Hossein Yalame , Georg Carle , Murali Annavaram

New research in acceleration physics leads to growing up the power of charged particles bunches. Existed methods based on interaction of detection devices with bunches do not satisfy our need, because of the fact that new high intensity…

Accelerator Physics · Physics 2014-08-26 V. Shpakov , S. Dabagov

The proposal of generating high quality electron bunches via ionization injection triggered by an counter propagating laser pulse inside a beam driven plasma wake is examined via two-dimensional particle-in-cell simulations. It is shown…

Accelerator Physics · Physics 2016-03-23 Y. Wan , C. J. Zhang , F. Li , Y. P. Wu , J. F. Hua , C. -H. Pai , W. Lu , C. Joshi , W. B. Mori , Y. Q. Gu

With the growing number of severe system disturbances and blackouts around the world, controlled system separation is becoming an increasingly important system integrity protection scheme (SIPS) to save the electric power system from a…

Systems and Control · Electrical Eng. & Systems 2023-05-30 Ilya Tyuryukanov , Marjan Popov , Jorrit A. Bos , Mart A. M. M. van der Meijden , Vladimir Terzija

Generating high-brightness relativistic electron bunches with few-femtosecond duration, while simultaneously achieving few-fs synchronization with ultrafast lasers, remains an outstanding challenge at the frontier of accelerator physics and…

Splitting methods have emerged as powerful tools to address complex problems by decomposing them into smaller solvable components. In this work, we develop a general approach to forward-backward splitting methods for solving monotone…

Optimization and Control · Mathematics 2026-04-20 Minh N. Dao , Matthew K. Tam , Thang D. Truong

The coherent scattering of photon in the Coulomb field (the Delbr\"uck scattering) is considered for the momentum transfer $\Delta \ll m$ in the frame of the quasiclassical operator method. In high-energy region this process occurs over…

High Energy Physics - Phenomenology · Physics 2009-10-31 V. N. Baier , V. M. Katkov

Molecular fragment or embedding methods are powerful techniques for overcoming scalability limitations in electronic structure theory by dividing large molecular systems into individual units that are small enough to be treated using…

Chemical Physics · Physics 2017-08-14 Jason N. Byrd , Robert W. Molt, , Rodney J. Bartlett , Beverly A. Sanders

The development of artificial intelligence (AI) provides opportunities for the promotion of deep neural network (DNN)-based applications. However, the large amount of parameters and computational complexity of DNN makes it difficult to…

Machine Learning · Computer Science 2023-10-25 Ce Xu , Jinxuan Li , Yuan Liu , Yushi Ling , Miaowen Wen

The plasma wakefield amplitudes which could be achieved via the modulation of a long proton bunch are investigated. We find that in the limit of long bunches compared to the plasma wavelength, the strength of the accelerating fields is…

Accelerator Physics · Physics 2015-05-28 Allen Caldwell , Konstantin Lotov

Crossing a horizontal nonlinear resonance is the approach that can be used to split a beam in several beamlets with the goal to perform multi-turn extraction from a circular particle accelerator. Such an approach has been successfully…

Accelerator Physics · Physics 2022-11-29 G. Russo , F. Cerutti , L. S. Esposito , G. Franchetti , M. Giovannozzi , J. R. Hunt , A. Huschauer

Significant inter-symbol interference (ISI) challenges the achievement of reliable, high data-rate molecular communication via diffusion. In this paper, a hybrid modulation based on pulse position and concentration is proposed to mitigate…

Information Theory · Computer Science 2021-04-21 Mustafa Can Gursoy , Daewon Seo , Urbashi Mitra

An on-axis injection scheme using a double-frequency RF system in a storage ring with small dynamic aperture is proposed. By altering RF voltages, empty RF buckets can be created which will be used for on-axis injection. After bunches are…

Accelerator Physics · Physics 2016-02-17 B. C. Jiang , Z. T. Zhao , S. Q. Tian , M. Z. Zhang , Q. L. Zhang

This study investigates a planar hybrid system consisting of three complementary splitring resonators (CSRRs), designed to examine interactions among multiple photon modes at room temperature. The system was modeled and simulated using the…

Quantum Physics · Physics 2025-09-09 Shourya Viren , Rakesh Kumar Nayak , Biswanath Bhoi , Rajeev Singh

The current article deals with analytical bunch compression studies for FLUTE whose results are compared to simulations. FLUTE is a linac-based electron accelerator with a design energy of approximately 40 MeV currently being constructed at…

Accelerator Physics · Physics 2014-07-09 M. Schreck , P. Wesolowski

Using the China Spallation Neutron Source (CSNS) linac as the injector, a 500 MeV proton synchrotron is proposed for multidisciplinary application, such as biology, material and proton therapy. The synchrotron will deliver proton beam with…

Accelerator Physics · Physics 2016-09-21 Liang-Sheng Huang , Sheng Wang , Hong-Fei Ji