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🔍 julian werthmann 📂 Engineering
Showing 78 results for "julian werthmann" in Engineering
Engineering Preprint PDF DOI

VULCAN: Vision-Language-Model Enhanced Multi-Agent Cooperative Navigation for Indoor Fire-Disaster Response

Shengding Liu, Qiben Yan · 2026

Indoor fire disasters pose severe challenges to autonomous search and rescue due to dense smoke, high temperatures, and dynamically evolving indoor environments. In such time-critical scenarios, multi…

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Engineering Preprint PDF DOI

Complementarity by Construction: A Lie-Group Approach to Solving Quadratic Programs with Linear Complementarity Constraints

Arun L. Bishop, Micah I. Reich, Zachary Manchester · 2026

Many problems in robotics require reasoning over a mix of continuous dynamics and discrete events, such as making and breaking contact in manipulation and locomotion. These problems are locally well m…

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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 · 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 decen…

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Engineering Preprint PDF DOI

\texttt{DR-DAQP}: An Hybrid Operator Splitting and Active-Set Solver for Affine Variational Inequalities

Daniel Arnstrom, Emilio Benenati, Giuseppe Belgioioso · 2026

We present \texttt{DR-DAQP}, an open-source solver for strongly monotone affine variational inequaliries that combines Douglas-Rachford operator splitting with an active-set acceleration strategy. The…

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Engineering Preprint PDF DOI

Least-Cost Overvoltage Control in PV-Rich Distribution Networks via Unbalanced Optimal Power Flow

Andrea Espinosa del Pozo, Araceli Hernandez, Luis Badesa · 2026

The increasing penetration of photovoltaic (PV) generation in low-voltage distribution networks presents operational challenges, with overvoltages being among the most critical. This study introduces …

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Engineering Preprint PDF DOI

StochasticBarrier.jl: A Toolbox for Stochastic Barrier Function Synthesis

Rayan Mazouz, Frederik Baymler Mathiesen, Luca Laurenti, Morteza Lahijanian · 2026

We present StochasticBarrier.jl, an open-source Julia-based toolbox for generating Stochastic Barrier Functions (SBFs) for safety verification of discrete-time stochastic systems with additive Gaussia…

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Engineering Preprint PDF DOI

LeLaR: The First In-Orbit Demonstration of an AI-Based Satellite Attitude Controller

Kirill Djebko, Tom Baumann, Erik Dilger, Frank Puppe, Sergio Montenegro · 2025

Attitude control is essential for many satellite missions. Classical controllers, however, are time-consuming to design and sensitive to model uncertainties and variations in operational boundary cond…

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Engineering Preprint PDF DOI

The Spheres Dataset: Multitrack Orchestral Recordings for Music Source Separation and Information Retrieval

Jaime Garcia-Martinez, David Diaz-Guerra, John Anderson, Ricardo Falcon-Perez, Pablo Cabanas-Molero, Tuomas Virtanen, Julio J. Carabias-Orti, Pedro Vera-Candeas · 2025

This paper introduces The Spheres dataset, multitrack orchestral recordings designed to advance machine learning research in music source separation and related MIR tasks within the classical music do…

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Engineering Preprint PDF DOI

PolyOCP.jl -- A Julia Package for Stochastic OCPs and MPC

Ruchuan Ou, Learta Januzi, Jonas Schie{ss}l, Michael Heinrich Baumann, Lars Grune, Timm Faulwasser · 2025

The consideration of stochastic uncertainty in optimal and predictive control is a well-explored topic. Recently Polynomial Chaos Expansions (PCE) have received considerable attention for problems inv…

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Engineering Preprint PDF DOI

Two Phases Leakage Detection Strategy Supported by DMAs

G. Messa, G. Acconciaioco, S. Ripani, L. Bozzelli, A. Simone, O. Giustolisi · 2025

The present work proposes a novel two phases model-based strategy for leakage detection. The two phases are: the identification of the district metering area (DMA) and the pipe pre-localization into t…

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Engineering Preprint PDF DOI

Increasing Inter-Fiber Contact in the Altendorf-Jeulin Model

Alex Keilmann, Claudia Redenbach, Francois Willot · 2025

In fields such as material design or biomedicine, fiber materials play an important role. Fiber simulations, also called digital twins, provide a basis for testing and optimizing the material's physic…

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Engineering Preprint PDF DOI

Large VLM-based Vision-Language-Action Models for Robotic Manipulation: A Survey

Rui Shao, Wei Li, Lingsen Zhang, Renshan Zhang, Zhiyang Liu, Ran Chen, Liqiang Nie · 2025

Robotic manipulation, a key frontier in robotics and embodied AI, requires precise motor control and multimodal understanding, yet traditional rule-based methods fail to scale or generalize in unstruc…

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Engineering Preprint PDF DOI

Porous Convection in the Discrete Exterior Calculus with Geometric Multigrid

Luke Morris, George Rauta, Kevin Carlson, James Fairbanks · 2025

The discrete exterior calculus (DEC) defines a family of discretized differential operators which preserve certain desirable properties from the exterior calculus. We formulate and solve the porous co…

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Engineering Preprint PDF DOI

Optimal Droop Control Strategy for Coordinated Voltage Regulation and Power Sharing in Hybrid AC-MTDC Systems

Hongjin Du, Tuanku Badzlin Hashfi, Rashmi Prasad, Pedro P. Vergara, Peter Palensky, Aleksandra Lekic · 2025

With the growing integration of modular multilevel converters (MMCs) in Multi-Terminal Direct Current (MTDC) transmission systems, there is an increasing need for control strategies that ensure both e…

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Engineering Preprint PDF DOI

Forward kinematics of a general Stewart-Gough platform by elimination templates

Evgeniy Martyushev · 2025

The paper proposes an efficient algebraic solution to the problem of forward kinematics for a general Stewart-Gough platform. The problem involves determining all possible postures of a mobile platfor…

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Engineering Preprint PDF DOI

Unified Power Flow Model for Bipolar HVDC Grids in Unbalanced Operation

Chandra Kant Jat, Francesco Giacomo Puricelli, Jef Beerten, Hakan Ergun, Dirk Van Hertem · 2025

In the near future, point-to-point High Voltage Direct Current (HVDC) systems are expected to evolve into multi-terminal and meshed HVDC grids, predominantly adopting a bipolar HVDC configuration. Nor…

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Engineering Preprint PDF DOI

EIQP: Execution-time-certified and Infeasibility-detecting QP Solver

Liang Wu, Wei Xiao, Richard D. Braatz · 2025

Solving real-time quadratic programming (QP) is a ubiquitous task in control engineering, such as in model predictive control and control barrier function-based QP. In such real-time scenarios, certif…

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Engineering Preprint PDF DOI

C codegen considered unnecessary: go directly to binary, do not pass C. Compilation of Julia code for deployment in model-based engineering

Fredrik Bagge Carlson, Cody Tapscott, Gabriel Baraldi, Chris Rackauckas · 2025

Since time immemorial an old adage has always seemed to ring true: you cannot use a high-level productive programming language like Python or R for real-time control and embedded-systems programming, …

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Engineering Preprint PDF DOI

ModelPredictiveControl.jl: advanced process control made easy in Julia

Francis Gagnon, Alex Thivierge, Andre Desbiens, Fredrik Bagge Carlson · 2024

Proprietary closed-source software is still the norm in advanced process control. Transparency and reproducibility are key aspects of scientific research. Free and open-source toolkit can contribute t…

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Engineering Preprint PDF DOI

DurIAN-E 2: Duration Informed Attention Network with Adaptive Variational Autoencoder and Adversarial Learning for Expressive Text-to-Speech Synthesis

Yu Gu, Qiushi Zhu, Guangzhi Lei, Chao Weng, Dan Su · 2024

This paper proposes an improved version of DurIAN-E (DurIAN-E 2), which is also a duration informed attention neural network for expressive and high-fidelity text-to-speech (TTS) synthesis. Similar wi…

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