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๐Ÿ” ahmed arafa ๐Ÿ“‚ Engineering
Showing 1160 results for "ahmed arafa" in Engineering
Engineering Preprint PDF DOI

Design Space Exploration for ReRAM-based Architectures to Address Scaling Non-idealities

Ching-Yi Lin, Sahil Shah ยท 2026

ReRAM-based in-memory computing (IMC) architectures are promising candidates for energy-efficient matrix-vector multiplication. While scaling the size of ReRAM arrays allows for the amortization of poโ€ฆ

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Engineering Preprint PDF DOI

On the Optimization Landscape of Observer-based Dynamic Linear Quadratic Control

Jingliang Duan, Jie Li, Yinsong Ma, Liye Tang, Guofa Li, Liping Zhang, Shengbo Eben Li, Lin Zhao ยท 2026

Understanding the optimization landscape of linear quadratic regulation (LQR) problems is fundamental to the design of efficient reinforcement learning solutions. Recent work has made significant progโ€ฆ

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Engineering Preprint PDF DOI

One Interface, Many Robots: Unified Real-Time Low-Level Motion Planning for Collaborative Arms

Yue Feng, Weicheng Huang, I-Ming Chen ยท 2026

This paper proposes a common interface for real-time low-level motion planning of collaborative robotic arms, aimed at enabling broader applicability and improved portability across heterogeneous hardโ€ฆ

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Engineering Preprint PDF DOI

Multi-User Symbol Detection with XL Reception: Dynamic Metasurface Antennas with Low Resolution ADCs

Rahul K. Pal, Soumya P. Dash, Barathram Ramkumar, George C. Alexandropoulos ยท 2026

Dynamic Metasurface Antennas (DMAs) have been recently proposed as a cost- and energy-efficient front-end solution for eXtremely Large (XL) antenna array systems, supporting scalable Analog and Digitaโ€ฆ

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Engineering Preprint PDF DOI

Robots Need Some Education: On the complexity of learning in evolutionary robotics

Fuda van Diggelen ยท 2026

Evolutionary Robotics and Robot Learning are two fields in robotics that aim to automatically optimize robot designs. The key difference between them lies in what is being optimized and the time scaleโ€ฆ

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Engineering Preprint PDF DOI

Joint Shape-Position Optimization Enhanced 2D DOA Estimation in Movable Antenna Systems

Chengzhi Ye, Ruoyu Zhang, Lei Yao, Wen Wu ยท 2026

Movable Antenna (MA) technology is emerging as a promising advancement with the potential to significantly enhance the performance of future wireless communication and sensing systems. In this paper, โ€ฆ

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Engineering Preprint PDF DOI

Extending deep learning U-Net architecture for predicting unsteady fluid flows in textured microchannels

Ganesh Sahadeo Meshram, Partha Pratim Chakrabarti, Suman Chakraborty ยท 2026

In this study, we have explored an application of deep learning architecture of the U-Net model, originally designed for biomedical image segmentation, in a regression analysis aimed at predicting fluโ€ฆ

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Engineering Preprint PDF DOI

Phase Relationship between Spinal Motion and Limb Support Determines High-speed Running Performance in a Cheetah Model with Asymmetric Spinal Stiffness

Tomoya Kamimura, Yuya Oshita, Mau Adachi, Yuichi Ambe, Akihito Sano, Naomi Wada, Fumitoshi Matsuno, Shinya Aoi ยท 2026

Cheetahs are characterized by large spinal flexion and extension during high-speed running, yet the dynamical role of the phase relationship between spinal motion and limb support remains unclear. We โ€ฆ

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Engineering Preprint PDF DOI

Weighted Sum-Rate Maximization for RIS-UAV-assisted Space-Air-Ground Integrated Network with RSMA

Jian He, Cong Zhou, Shuo Shi ยท 2026

In this paper, a rate-splitting multiple access (RSMA) based joint optimization framework for the space-air-ground integrated network (SAGIN) is proposed, where the satellite and base stations employ โ€ฆ

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Engineering Preprint PDF DOI

Power System Studies Using Open-Access Software

Juan A. Martinez-Velasco, Pau Casals-Torrens, Ricard Bosch-Tous, Alexandre Serrano-Fontova ยท 2026

The use of open-access software is an option that can be considered by those interested in power system studies. In addition, the combination of two or more of these tools can expand the capabilities โ€ฆ

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Engineering Preprint PDF DOI

Cooperative Bandit Learning in Directed Networks with Arm-Access Constraints

Evagoras Makridis, Themistoklis Charalambous ยท 2026

Sequential decision-making under uncertainty often involves multiple agents learning which actions (arms) yield the highest rewards through repeated interaction with a stochastic environment. This setโ€ฆ

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Engineering Preprint PDF DOI

Speedup Patch: Learning a Plug-and-Play Policy to Accelerate Embodied Manipulation

Zhichao Wu, Junyin Ye, Zhilong Zhang, Yihao Sun, Haoxin Lin, Jiaheng Luo, Haoxiang Ren, Lei Yuan, Yang Yu ยท 2026

While current embodied policies exhibit remarkable manipulation skills, their execution remains unsatisfactorily slow as they inherit the tardy pacing of human demonstrations. Existing acceleration meโ€ฆ

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Engineering Preprint PDF DOI

Grid-Constrained Smart Charging of Large EV Fleets: Comparative Study of Sequential DP and a Full Fleet Solver

Ipek Kuvvetli, Christofer Sundstrom, Sogol Kharrazi, Erik Frisk ยท 2026

This paper presents a comparative optimization framework for smart charging of electrified vehicle fleets. Using heuristic sequential dynamic programming (SeqDP), the framework minimizes electricity cโ€ฆ

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Engineering Preprint PDF DOI

Stochastic 3-D Foliage Modeling at 80 GHz: Experimental Validation and Ray-Tracing Simulations

Jiri Blumenstein, Radek Zavorka, Josef Vychodil, Tomas Mikulasek, Jaroslaw Wojtun, Jan M. Kelner, Cezary Ziolkowski, Rajeev Shukla, Markus Hofer, Thomas Zemen, Christoph Mecklenbrauker, Aniruddha Chandra, Ales Prokes ยท 2026

A stochastic modeling methodology for 3-D foliage is presented, aimed at enhancing ray-tracing simulations. The model supports adjustable stochastic geometry, density, and shape to capture variabilityโ€ฆ

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Engineering Preprint PDF DOI

Bio-inspired metaheuristic optimization for hierarchical architecture design of industrial control systems

Ruslan Zakirzyanov ยท 2026

Automated process control systems (APCS) are widely used in modern industrial enterprises. They address three key objectives: ensuring the required quality of manufactured products, ensuring process sโ€ฆ

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Engineering Preprint PDF DOI

Near-field Boundary Distance in mmWave and THz Communications with Misaligned Antenna Arrays

Peng Zhang, Vitaly Petrov, Emil Bjornson ยท 2026

Wireless communications in the millimeter wave (mmWave) and terahertz (THz) spectrum allow harnessing large frequency bands, thus achieving ultra-high data rates. However, the inherently short wavelenโ€ฆ

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Engineering Preprint PDF DOI

On Globally Optimal Stochastic Policy Gradient Methods for Domain Randomized LQR Synthesis

Alex Nguyen-Le, Nikolai Matni ยท 2026

Domain randomization is a simple, effective, and flexible scheme for obtaining robust feedback policies aimed at reducing the sim-to-real gap due to model mismatch. While domain randomization methods โ€ฆ

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Engineering Preprint PDF DOI

Leveraging Quantum Annealing for Large-Scale Household Energy Scheduling with Hydrogen Storage

Arash Khalatbarisoltani, Amin Mahmoudi, Jie Han, Muhammad Saeed, Wenxue Liu, Jinwen Li, Solmaz Kahourzade, Amirmehdi Yazdani, Xiaosong Hu ยท 2026

Hydrogen integration into microgrids facilitates the absorption of intermittencies from renewable energy resources. However, significant challenges remain due to complex optimization problems, particuโ€ฆ

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Engineering Preprint PDF DOI

Temperature-Aware Scheduling of LLM Inference in Large-Scale Geo-Distributed Edge Data Centers with Distributed Optimization

Arash Khalatbarisoltani, Amin Mahmoudi, Jie Han, Muhammad Saeed, Wenxue Liu, Jinwen Li, Solmaz Kahourzade, Amirmehdi Yazdani, Xiaosong Hu ยท 2026

The environmental impact of Large Language Models (LLMs) on data centers hosting these models is becoming a significant concern. While many efforts have focused on reducing the substantial training ovโ€ฆ

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Engineering Preprint PDF DOI

Enhancing Power Systems Transmission Adequacy via Optimal BESS Siting and Sizing using Benders Decomposition with Feasibility Cuts

Ginevra Larroux, Matthieu Jacobs, Keyu Jia, Fabrizio Sossan, Mario Paolone ยท 2026

This work presents a general framework for the operationally driven optimal siting and sizing of battery energy storage systems in power transmission networks, aimed at enhancing their resource adequaโ€ฆ

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