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🔍 christian lambert 📂 Engineering
Showing 46 results for "christian lambert" in Engineering
Engineering Preprint PDF DOI

The role of physical models in the validation and calibration of numerical models -- The example of the Lilleb{\ae}lt Bridge

Paula Apollonia Wunderlich, Gledson Rodrigo Tondo, Guido Morgenthal · 2026

With the rapid advancement of computer technologies enabling fast calculations of complex structures, numerical methods have become a central tool in engineering sciences, while physical models have i…

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Engineering Preprint PDF DOI

A Novel Piecewise Atmospheric Attenuation Model for Free Space Optical Links in Vertical Heterogeneous Networks

Eylem Erdogan, Mohammed Elamassie, Ibrahim Altunbas, Gunes Karabulut Kurt, Murat Uysal, Halim Yanikomeroglu · 2026

Free-space optical (FSO) communication is emerging as a key backhaul technology for next-generation vertical heterogeneous networks (VHetNets), whose architecture spans satellites, high-altitude platf…

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Engineering Preprint PDF DOI

LIMBERO: A Limbed Climbing Exploration Robot Toward Traveling on Rocky Cliffs

Kentaro Uno, Masazumi Imai, Kazuki Takada, Teruhiro Kataonami, Yudai Matsuura, Antonin Ringeval-Meusnier, Keita Nagaoka, Mikio Eguchi, Ryo Nishibe, Kazuya Yoshida · 2026

In lunar and planetary exploration, legged robots have attracted significant attention as an alternative to conventional wheeled robots, which struggle to traverse rough and uneven terrain. To enable …

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Engineering Preprint PDF DOI

AmbER$^2$: Dual Ambiguity-Aware Emotion Recognition Applied to Speech and Text

Jingyao Wu, Grace Lin, Yinuo Song, Rosalind Picard · 2026

Emotion recognition is inherently ambiguous, with uncertainty arising both from rater disagreement and from discrepancies across modalities such as speech and text. There is growing interest in modeli…

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Engineering Preprint PDF DOI

Analysis of Full Order Observer Based Control for Spacecraft Orbit Maneuver Trajectory Under Solar Radiation Pressure

Haoyang Zhang · 2026

This study investigates the application of modern control theory to improve the precision of spacecraft orbit maneuvers in low Earth orbit under the influence of solar radiation pressure. A full order…

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Engineering Preprint PDF DOI

AMBER: A tether-deployable gripping crawler with compliant microspines for canopy manipulation

P. A. Wigner, L. Romanello, A. Hammad, P. H. Nguyen, T. Lan, S. F. Armanini, B. B. Kocer, M. Kovac · 2025

This paper presents an aerially deployable crawler designed for adaptive locomotion and manipulation within tree canopies. The system combines compliant microspine-based tracks, a dual-track rotary gr…

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Engineering Preprint PDF DOI

Adaptive Channel Estimation and Quantized Feedback for RIS Assisted Optical Wireless Communication Systems

Muhammad Khalil, Ke Wang, Jinho Choi · 2025

This paper presents a unified modeling, estimation, and feedback framework for reconfigurable intelligent surface RIS-assisted optical wireless links. The key modeling element is a long-exposure pixel…

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Engineering Preprint PDF DOI

Data-driven Smile Design: Personalized Dental Aesthetics Outcomes Using Deep Learning

Marcus Lin, Jennifer Lai · 2025

A healthy smile plays a significant role in functional as well as esthetic considerations, improving confidence. It is difficult for dental professionals to strike a balance between esthetic requireme…

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Engineering Preprint PDF DOI

Physics-Informed Neural Networks vs. Physics Models for Non-Invasive Glucose Monitoring: A Comparative Study Under Noise-Stressed Synthetic Conditions

Riyaadh Gani · 2025

Non-invasive glucose monitoring outside controlled settings is dominated by low signal-to-noise ratio (SNR): hardware drift, environmental variation, and physiology suppress the glucose signature in N…

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Engineering Preprint PDF DOI

Bandwidth of Gamma-Distribution-Shaped Functions via Lambert W Function

Anthony LoPrete, Johannes Burge · 2025

The full width at half maximum (FWHM) is a useful quantity for characterizing the bandwidth of unimodal functions. However, a closed-form expression for the FWHM of gamma-shaped functions-i.e. functio…

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Engineering Preprint PDF DOI

Less is More: AMBER-AFNO -- a New Benchmark for Lightweight 3D Medical Image Segmentation

Andrea Dosi, Semanto Mondal, Rajib Chandra Ghosh, Massimo Brescia, Giuseppe Longo · 2025

We adapt the remote sensing-inspired AMBER model from multi-band image segmentation to 3D medical datacube segmentation. To address the computational bottleneck of the volumetric transformer, we propo…

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Engineering Preprint PDF DOI

Joint Power Allocation and Reflecting-Element Activation for Energy Efficiency Maximization in IRS-Aided Communications Under CSI Uncertainty

Christos N. Efrem, Ioannis Krikidis · 2025

We study the joint power allocation and reflecting element (RE) activation to maximize the energy efficiency (EE) in communication systems assisted by an intelligent reflecting surface (IRS), taking i…

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Engineering Preprint PDF DOI

Revisiting Chien-Hrones-Reswick Method for an Analytical Solution

Senol Gulgonul · 2025

This study presents an analytical method for tuning PI controllers in First-Order with Time Delay (FOTD) systems, leveraging the Lambert W function. The Lambert W function enables exact pole placement…

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Engineering Preprint PDF DOI

ViT-NeBLa: A Hybrid Vision Transformer and Neural Beer-Lambert Framework for Single-View 3D Reconstruction of Oral Anatomy from Panoramic Radiographs

Bikram Keshari Parida, Anusree P. Sunilkumar, Abhijit Sen, Wonsang You · 2025

Dental diagnosis relies on two primary imaging modalities: panoramic radiographs (PX) providing 2D oral cavity representations, and Cone-Beam Computed Tomography (CBCT) offering detailed 3D anatomical…

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Engineering Preprint PDF DOI

MapBERT: Bitwise Masked Modeling for Real-Time Semantic Mapping Generation

Yijie Deng, Shuaihang Yuan, Congcong Wen, Hao Huang, Anthony Tzes, Geeta Chandra Raju Bethala, Yi Fang · 2025

Spatial awareness is a critical capability for embodied agents, as it enables them to anticipate and reason about unobserved regions. The primary challenge arises from learning the distribution of ind…

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Engineering Preprint PDF DOI

Stability and Convergence Analysis of Multi-Agent Consensus with Communication Delays: A Lambert W Function Approach

Layan Badran, Kiarash Aryankia, Rastko R. Selmic · 2025

This paper investigates the effect of constant time delay in weakly connected multi-agent systems modeled by double integrator dynamics. A novel analytical approach is proposed to establish an upper b…

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Engineering Preprint PDF DOI

The Search for Squawk: Agile Modeling in Bioacoustics

Vincent Dumoulin, Otilia Stretcu, Jenny Hamer, Lauren Harrell, Rob Laber, Hugo Larochelle, Bart van Merrienboer, Amanda Navine, Patrick Hart, Ben Williams, Timothy A.C. Lamont, Tries B. Razak, Mars Coral Restoration Team, Sheryn Brodie, Brendan Doohan, Phil Eichinski, Paul Roe, Lin Schwarzkopf, Tom Denton · 2025

Passive acoustic monitoring (PAM) has shown great promise in helping ecologists understand the health of animal populations and ecosystems. However, extracting insights from millions of hours of audio…

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Engineering Preprint PDF DOI

Finding Conditions for Target Controllability under Christmas Trees

Marco Peruzzo, Giacomo Baggio, Francesco Ticozzi · 2025

This paper presents new graph-theoretic conditions for structural target controllability of directed networks. After reviewing existing conditions and highlighting some gaps in the literature, we intr…

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Engineering Preprint PDF DOI

Differentiable Voxel-based X-ray Rendering Improves Sparse-View 3D CBCT Reconstruction

Mohammadhossein Momeni, Vivek Gopalakrishnan, Neel Dey, Polina Golland, Sarah Frisken · 2024

We present DiffVox, a self-supervised framework for Cone-Beam Computed Tomography (CBCT) reconstruction by directly optimizing a voxelgrid representation using physics-based differentiable X-ray rende…

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Engineering Preprint PDF DOI

Why Anticipatory Sensing Matters in Commercial ACC Systems under Cut-In Scenarios: A Perspective from Stochastic Safety Analysis

Hao Zhang, Sixu Li, Zihao Li, Mohammad Anis, Dominique Lord, Yang Zhou · 2024

This study presents an analytical solution for the vehicle state evolution of Adaptive Cruise Control (ACC) systems under cut-in scenarios, incorporating sensing delays and anticipation using the Lamb…

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