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๐Ÿ” steven obua ๐Ÿ“‚ Engineering
Showing 1083 results for "steven obua" in Engineering
Engineering Preprint PDF DOI

Comparative Evaluation of Modern Deep Learning Methodologies for Portfolio Optimization

Samuel Ozechi, Banjo Francis, Wisdom Yakanu, Joe Wayne Byers ยท 2026

This study proposes a portfolio optimization framework that integrates advanced deep learning architectures with traditional financial models to enhance risk-adjusted performance. Using historical datโ€ฆ

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Signal Processing Foundations of Reconfigurable Antennas in the Tri-Hybrid MIMO Architecture

Nitish Vikas Deshpande, Joseph Carlson, Siyun Yang, Mohamed Akrout, Alfredo Gonzalez, Miguel Rodrigo Castellanos, Tharmalingam Ratnarajah, Chan-Byoung Chae, Robert W. Heath Jr ยท 2026

To enable larger apertures in multipleinput multipleoutput MIMO systems the trihybrid MIMO architecture offers a promising lowcost and lowpower solution by introducing reconfigurable antennas as a thiโ€ฆ

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A Kinematic Analysis of Palm Degrees of Freedom for Enhancing Thumb Opposability in Robotic Hands

HyoJae Kang, Yeong Jae Park, Hyunmok Jung, Joonho Lee, Dong Il Park ยท 2026

This study investigates the kinematic role of palm degrees of freedom (DoF) in enhancing thumb opposability in a five-finger robotic hand. A hand model consisting of a five DoF thumb and four fingers โ€ฆ

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Engineering Preprint PDF DOI

DiariZen Explained: A Tutorial for the Open Source State-of-the-Art Speaker Diarization Pipeline

Nikhil Raghav ยท 2026

Speaker diarization (SD) is the task of answering "who spoke when" in a multi-speaker audio stream. Classically, an SD system clusters segments of speech belonging to an individual speaker's identity.โ€ฆ

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Engineering Preprint PDF DOI

Maritime Connectivity Vulnerability Index: Construction, Patterns, and Validation Across 185 Economies, 2006-2025

Mohamed Bouka, Moulaye Abdel Kader Moulaye Ismail ยท 2026

Recent disruptions at major maritime chokepoints have exposed the structural fragility of liner shipping networks. Existing indicators measure connectivity, but none quantify its structural vulnerabilโ€ฆ

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Engineering Preprint PDF DOI

Benchmarking Classical Coverage Path Planning Heuristics on Irregular Hexagonal Grids for Maritime Coverage Scenarios

Carlos S. Sepulveda, Gonzalo A. Ruz ยท 2026

Coverage path planning on irregular hexagonal grids is relevant to maritime surveillance, search and rescue and environmental monitoring, yet classical methods are often compared on small ad hoc exampโ€ฆ

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Engineering Preprint PDF DOI

CAVERS: Multimodal SLAM Data from a Natural Karstic Cave with Ground Truth Motion Capture

Giacomo Franchini, David Rodriguez-Martinez, Alfonso Martinez-Petersen, C. J. Perez-del-Pulgar, Marcello Chiaberge ยท 2026

Autonomous robots operating in natural karstic caves face perception and navigation challenges that are qualitatively distinct from those encountered in mines or tunnels: irregular geometry, reflectivโ€ฆ

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Engineering Preprint PDF DOI

SongBench: A Fine-Grained Multi-Aspect Benchmark for Song Quality Assessment

Dapeng Wu, Shun Lei, Wei Tan, Guangzheng Li, Yunzhe Wang, Huaicheng Zhang, Lishi Zuo, Zhiyong Wu ยท 2026

Recent advancements in Text-to-Song generation have enabled realistic musical content production, yet existing evaluation benchmarks lack the professional granularity to capture multi-dimensional aestโ€ฆ

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Engineering Preprint PDF DOI

EmbodiedGovBench: A Benchmark for Governance, Recovery, and Upgrade Safety in Embodied Agent Systems

Xue Qin, Simin Luan, John See, Cong Yang, Zhijun Li ยท 2026

Recent progress in embodied AI has produced a growing ecosystem of robot policies, foundation models, and modular runtimes. However, current evaluation remains dominated by task success metrics such aโ€ฆ

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Engineering Preprint PDF DOI

Modeling and Simulation of Nitrogen Generation by Pressure Swing Adsorption for Power-to-Ammonia

Marcus J. Schytt, Lorenz T. Biegler, John B. J{o}rgensen ยท 2026

Power-to-ammonia (P2A) provides a carbon-free alternative to conventional ammonia production by replacing fossil-based feedstocks with electrolytic hydrogen and nitrogen from air separation. For decenโ€ฆ

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Engineering Preprint PDF DOI

Vision-Language Navigation for Aerial Robots: Towards the Era of Large Language Models

Xingyu Xia, Lekai Zhou, Yujie Tang, Xiaozhou Zhu, Hai Zhu, Wen Yao ยท 2026

Aerial vision-and-language navigation (Aerial VLN) aims to enable unmanned aerial vehicles (UAVs) to interpret natural language instructions and autonomously navigate complex three-dimensional environโ€ฆ

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From Perception to Autonomous Computational Modeling: A Multi-Agent Approach

Daniel N. Wilke ยท 2026

We present a solver-agnostic framework in which coordinated large language model (LLM) agents autonomously execute the complete computational mechanics workflow, from perceptual data of an engineeringโ€ฆ

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Multiobjective optimization-based design and dispatch of islanded, hybrid microgrids for remote, off-grid communities in sub-Saharan Africa

Vineet Jagadeesan Nair ยท 2026

Reliable, affordable electricity remains inaccessible to over 600 million people in sub-Saharan Africa (SSA), where islanded hybrid microgrids combining renewable generation, battery storage, and diesโ€ฆ

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Engineering Preprint PDF DOI

A Process-Aware Demand Response Framework for Hydrogen-Integrated Zero-Carbon Steel Plants Coupled with Methanol Production

Qiang Ji, Lin Cheng, Yue Zhou, Ning Qi, Kaidi Huang, Jianzhong Wu, Ming Cheng ยท 2026

The integration of the high penetration of intermittent renewable energy sources (RES) and the retirement of thermal units have significantly aggravated the flexibility scarcity and real-time balancinโ€ฆ

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Engineering Preprint PDF DOI

A virtual-variable-length method for robust inverse kinematics of multi-segment continuum robots

Weiting Feng, Federico Renda, Yunjie Yang, Francesco Giorgio-Serchi ยท 2026

This paper proposes a new, robust method to solve the inverse kinematics (IK) of multi-segment continuum manipulators. Conventional Jacobian-based solvers, especially when initialized from neutral/resโ€ฆ

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Engineering Preprint PDF DOI

Stein Variational Uncertainty-Adaptive Model Predictive Control

Hrishikesh Sathyanarayan, Ian Abraham ยท 2026

We propose a Stein variational distributionally robust controller for nonlinear dynamical systems with latent parametric uncertainty. The method is an alternative to conservative worst-case ambiguity-โ€ฆ

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Engineering Preprint PDF DOI

A Dual-Action Fabric-Based Soft Robotic Glove for Ergonomic Hand Rehabilitation

Rui Chen, Firman Isma Serdana, Domenico Chiaradia, Xianlong Mai, Elena Losanno, Gabriele Righi, Claudia De Santis, Federica Serra, Vincent Mendez, Cristian Camardella, Daniele Leonardis, Giulio Del Popolo, Silvestro Micera, Antonio Frisoli ยท 2026

Hand impairment following neurological disorders substantially limits independence in activities of daily living, motivating the development of effective assistive and rehabilitation strategies. Soft โ€ฆ

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Engineering Preprint PDF DOI

Industrial-Grade Robust Robot Vision for Screw Detection and Removal under Uneven Conditions

Tomoki Ishikura, Genichiro Matsuda, Takuya Kiyokawa, Kensuke Harada ยท 2026

As the amount of used home appliances is expected to increase despite the decreasing labor force in Japan, there is a need to automate disassembling processes at recycling plants. The automation of diโ€ฆ

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Engineering Preprint PDF DOI

Real-Time Surrogate Modeling for Fast Transient Prediction in Inverter-Based Microgrids Using CNN and LightGBM

Osasumwen Cedric Ogiesoba-Eguakun, Kaveh Ashenayi, Suman Rath ยท 2026

Real-time monitoring of inverter-based microgrids is essential for stability, fault response, and operational decision-making. However, electromagnetic transient (EMT) simulations, required to captureโ€ฆ

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Engineering Preprint PDF DOI

A Computational Framework for Cross-Domain Mission Design and Onboard Cognitive Decision Support

J. de Curto, Adrianne Schneider, Ricardo Yanez, Maria Begara, Alvaro Rodriguez, Javier Lopez, Martina Fraga, Ignacio Gomez, Arman Akdag, Sumit Kulkarni, Siddhant Nair, Kiyan Govender, Eian Wratchford, Eli Lynskey, Seamus Dunlap, Cooper Nervick, Nicolas Tete, Rocio Fernandez, Pablo Gonzalez, Elena Municio, I. de Zarza ยท 2026

The design of distributed autonomous systems for operation beyond reliable ground contact presents a fundamental tension: as round-trip communication latency grows, the set of decisions delegable to gโ€ฆ

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