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Three-dimensional (3D) ultrasound provides enhanced visualization of the carotid artery (CA) anatomy and volumetric flow, offering improved accuracy for cardiovascular diagnosis and monitoring. However, fully populated matrix transducers…

We outline the challenges associated with the development and construction of large focal plane arrays for use both on the ground and in space. Using lessons learned from existing JPL-led and ASU/JPL partnership efforts to develop…

In this article we use the method of shortcuts to adiabaticity to design a photonic lattice (array of waveguides) which can drive the input light to a controlled location at the output. The output position in the array is determined by…

量子物理 · 物理学 2015-06-19 Dionisis Stefanatos

This paper aims to generalize and unify classical criteria for comparisons of balanced lattice designs, including fractional factorial designs, supersaturated designs and uniform designs. We present a general majorization framework for…

统计理论 · 数学 2007-06-13 Aijun Zhang , Kai-Tai Fang , Runze Li , Agus Sudjianto

We consider all compatible topologies of an arbitrary finite-dimensional vector space over a non-trivial valuation field whose metric completion is a locally compact space. We construct the canonical lattice isomorphism between the lattice…

一般拓扑 · 数学 2023-12-01 Takanobu Aoyama

This work generalizes the additively partitioned Runge-Kutta methods by allowing for different stage values as arguments of different components of the right hand side. An order conditions theory is developed for the new family of…

数值分析 · 计算机科学 2013-10-22 Adrian Sandu , Michael Guenther

We briefly consider some design aspects of aperture arrays for use in radio astronomy, particularly contrasting the performance of dense and sparse aperture arrays. Recent insights have emerged in the final design phase of LOFAR which…

天体物理学 · 物理学 2007-05-23 Robert Braun , Wim van Cappellen

Metamaterials are being used to model various exotic "optical spaces" for such applications as novel lenses and cloaking. While most effort is directed towards engineering of continuously changing dielectric permittivity and magnetic…

光学 · 物理学 2011-07-26 Alexei I. Smolyaninov , Igor I. Smolyaninov

This paper introduces a universal federated learning framework that enables over-the-air computation via digital communications, using a new joint source-channel coding scheme. Without relying on channel state information at devices, this…

信息论 · 计算机科学 2024-03-05 Seyed Mohammad Azimi-Abarghouyi , Lav R. Varshney

We present an additive approach for the inverse design of kirigami-based mechanical metamaterials by focusing on the empty (negative) spaces instead of the solid tiles. By considering each negative space as a four-bar linkage, we identify a…

软凝聚态物质 · 物理学 2023-05-29 Levi H. Dudte , Gary P. T. Choi , Kaitlyn P. Becker , L. Mahadevan

In this paper, we study the redundancy of linear codes with graph constraints. First we consider linear parity check codes based on bipartite graphs with diversity and with generalized graph constraints. We describe sufficient conditions on…

组合数学 · 数学 2023-01-13 Ghurumuruhan Ganesan

A liquid crystal (LC) lens array based on double-layer composite electrodes, characterized by a large aperture, short focal length, and low operating voltage is demonstrated. The lens array consists of an LC layer, a top common electrode, a…

光学 · 物理学 2025-09-05 Rui Ding , Li-Lan Tian , Yi Zheng , Yu-Meng Zeng , Fan Zou , Yue Niu , Rong-Fu Liu , Ji-Wei Zhou

This paper analyses the feasible sets structure of general mixed integer linear programs (MIPs) and its relationship with the existence of a finite cardinality test set which can be applied in augmentation algorithms. We derive and…

最优化与控制 · 数学 2025-09-30 Justo Puerto , Jose A. Ruiz-Alba

The design and development of new photonic devices for technological applications requires a deep understanding of the effect of structural properties on the resulting band gap size and its position. Here, we perform a theoretical study of…

光学 · 物理学 2024-05-24 Oscar D. H. Pardo , R. R. Rey-González

To study orthogonal arrays and signed orthogonal arrays, Ray-Chaudhuri and Singhi (1988 and 1994) considered some module spaces. Here, using a linear algebraic approach we define an inclusion matrix and find its rank. In the special case of…

组合数学 · 数学 2009-05-05 A. A. Khanban , M. Mahdian , E. S. Mahmoodian

Recently, two-dimensional (2D) array codes have been found to have applications in wireless communication.In this paper, we propose direct construction of 2D complete complementary codes (2D-CCCs) with arbitrary array size and flexible set…

信息论 · 计算机科学 2024-09-12 Gobinda Ghosh , Sachin Pathak

Augmented designs are typically used in early-stage breeding programs to compare single replicates of test entries by combining them with replicated check varieties. One or two dimensional incomplete blocking can be incorporated in the…

统计方法学 · 统计学 2025-11-24 E. R. Williams , H-P. Piepho

We report on a compact, ultrahigh-vacuum compatible optical assembly to create large-scale, two-dimensional optical lattices for use in experiments with ultracold atoms. The assembly consists of an octagon-shaped spacer made from…

量子气体 · 物理学 2021-01-18 A. Heinz , J. Trautmann , N. Šantić , A. J. Park , I. Bloch , S. Blatt

The development of large-scale, programmable photonic circuits capable of performing generic matrix-vector multiplication is essential for both classical and quantum information processing. However, this goal is hindered by high losses,…

光学 · 物理学 2026-01-13 S. A. Fldzhyan , M. Yu. Saygin , S. S. Straupe

In this letter, we consider a uniform circular array (UCA)-based line-of-sight multiple-input-multiple-output system, where the transmit and receive UCAs are parallel but non-coaxial with each other. We propose a simple channel-independent…

信号处理 · 电气工程与系统科学 2024-06-10 Haiyue Jing , Wenchi Cheng , Xiang-Gen Xia