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๐Ÿ” sandra alves ๐Ÿ“‚ Engineering
Showing 113 results for "sandra alves" in Engineering
Engineering Preprint PDF DOI

Pandora: Articulated 3D Scene Graphs from Egocentric Vision

Alan Yu, Yun Chang, Christopher Xie, Luca Carlone ยท 2026

Robotic mapping systems typically approach building metric-semantic scene representations from the robot's own sensors and cameras. However, these "first person" maps inherit the robot's own limitatioโ€ฆ

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Engineering Preprint PDF DOI

A Nonvolatile Switchable-polarity EPM Valve

Bingchao Wang, Jonah Mack, Francesco Giorgio-Serchi, Adam A. Stokes ยท 2026

Scalable control of pneumatic and fluidic networks remains fundamentally constrained by architectures that require continuous power input, dense external control hardware, and fixed routing topologiesโ€ฆ

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Engineering Preprint PDF DOI

Physicochemical-Neural Fusion for Semi-Closed-Circuit Respiratory Autonomy in Extreme Environments

Phillip Kingston, Nicholas Johnston ยท 2026

This paper introduces Galactic Bioware's Life Support System, a semi-closed-circuit breathing apparatus designed for integration into a positive-pressure firefighting suit and governed by an AI controโ€ฆ

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Engineering Preprint PDF DOI

Athena: An Autonomous Open-Hardware Tracked Rescue Robot Platform

Stefan Fabian, Aljoscha Schmidt, Jonas Su{ss}, Dishant, Aum Oza, Oskar von Stryk ยท 2026

In disaster response and situation assessment, robots have great potential in reducing the risks to the safety and health of first responders. As the situations encountered and the required capabilitiโ€ฆ

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Engineering Preprint PDF DOI

BioME: A Resource-Efficient Bioacoustic Foundational Model for IoT Applications

Heitor R. Guimaraes, Abhishek Tiwari, Mahsa Abdollahi, Anderson R. Avila, Tiago H. Falk ยท 2026

Passive acoustic monitoring has become a key strategy in biodiversity assessment, conservation, and behavioral ecology, especially as Internet-of-Things (IoT) devices enable continuous in situ audio cโ€ฆ

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Engineering Preprint PDF DOI

Energy-Aware Reinforcement Learning for Robotic Manipulation of Articulated Components in Infrastructure Operation and Maintenance

Xiaowen Tao, Yinuo Wang, Haitao Ding, Yuanyang Qi, Ziyu Song ยท 2026

With the growth of intelligent civil infrastructure and smart cities, operation and maintenance (O&M) increasingly requires safe, efficient, and energy-conscious robotic manipulation of articulated coโ€ฆ

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Engineering Preprint PDF DOI

Semantic Enrichment of CAD-Based Industrial Environments via Scene Graphs for Simulation and Reasoning

Nathan Pascal Walus, Ranulfo Bezerra, Shotaro Kojima, Tsige Tadesse Alemayoh, Satoshi Tadokoro, Kazunori Ohno ยท 2026

Utilizing functional elements in an industrial environment, such as displays and interactive valves, provide effective possibilities for robot training. When preparing simulations for robots or applicโ€ฆ

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Engineering Preprint PDF DOI

SAMora: Enhancing SAM through Hierarchical Self-Supervised Pre-Training for Medical Images

Shuhang Chen, Hangjie Yuan, Pengwei Liu, Hanxue Gu, Tao Feng, Dong Ni ยท 2025

The Segment Anything Model (SAM) has demonstrated significant potential in medical image segmentation. Yet, its performance is limited when only a small amount of labeled data is available, while therโ€ฆ

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Engineering Preprint PDF DOI

Shape Deformation Networks for Automated Aortic Valve Finite Element Meshing from 3D CT Images

Linchen Qian, Jiasong Chen, Ruonan Gong, Wei Sun, Minliang Liu, Liang Liang ยท 2025

Accurate geometric modeling of the aortic valve from 3D CT images is essential for biomechanical analysis and patient-specific simulations to assess valve health or make a preoperative plan. However, โ€ฆ

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Engineering Preprint PDF DOI

Design and Koopman Model Predictive Control of A Soft Exoskeleton Based on Origami-Inspired Pneumatic Actuator for Knee Rehabilitation

Junxiang Wang, Han Zhang, Zehao Wang, Huaiyuan Chen, Pu Wang, Weidong Chen ยท 2025

Effective rehabilitation methods are essential for the recovery of lower limb dysfunction caused by stroke. Nowadays, robotic exoskeletons have shown great potentials in rehabilitation. Nevertheless, โ€ฆ

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Engineering Preprint PDF DOI

SanDRA: Safe Large-Language-Model-Based Decision Making for Automated Vehicles Using Reachability Analysis

Yuanfei Lin, Sebastian Illing, Matthias Althoff ยท 2025

Large language models have been widely applied to knowledge-driven decision-making for automated vehicles due to their strong generalization and reasoning capabilities. However, the safety of the resuโ€ฆ

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Engineering Preprint PDF DOI

On properties of hydraulic equilibria in district heating networks

Ask Hallstrom, Felix Agner, Richard Pates ยท 2025

District heating networks are an integral part of the energy system in many countries. In future smart energy systems, they are expected to enhance energy flexibility and support the integration of reโ€ฆ

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Engineering Preprint PDF DOI

A Bilevel Optimization Framework for Adversarial Control of Gas Pipeline Operations

Tejaswini Sanjay Katale, Lu Gao, Yunpeng Zhang, Alaa Senouci ยท 2025

Cyberattacks on pipeline operational technology systems pose growing risks to energy infrastructure. This study develops a physics-informed simulation and optimization framework for analyzing cyber-phโ€ฆ

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Engineering Preprint PDF DOI

Modeling and Mixed-Integer Nonlinear MPC of Positive-Negative Pressure Pneumatic Systems

Yu Mei, Xinyu Zhou, Xiaobo Tan ยท 2025

Positive-negative pressure regulation is critical to soft robotic actuators, enabling large motion ranges and versatile actuation modes. However, it remains challenging due to complex nonlinearities, โ€ฆ

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Engineering Preprint PDF DOI

Systolic Array-based Architecture for Low-Bit Integerized Vision Transformers

Ching-Yi Lin, Sahil Shah ยท 2025

Transformer-based models are becoming more and more intelligent and are revolutionizing a wide range of human tasks. To support their deployment, AI labs offer inference services that consume hundredsโ€ฆ

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Engineering Preprint PDF DOI

Efficient Safety Testing of Autonomous Vehicles via Adaptive Search over Crash-Derived Scenarios

Rui Zhou ยท 2025

Ensuring the safety of autonomous vehicles (AVs) is paramount in their development and deployment. Safety-critical scenarios pose more severe challenges, necessitating efficient testing methods to valโ€ฆ

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Engineering Preprint PDF DOI

DeSTA2.5-Audio: Toward General-Purpose Large Audio Language Model with Self-Generated Cross-Modal Alignment

Ke-Han Lu, Zhehuai Chen, Szu-Wei Fu, Chao-Han Huck Yang, Sung-Feng Huang, Chih-Kai Yang, Chee-En Yu, Chun-Wei Chen, Wei-Chih Chen, Chien-yu Huang, Yi-Cheng Lin, Yu-Xiang Lin, Chi-An Fu, Chun-Yi Kuan, Wenze Ren, Xuanjun Chen, Wei-Ping Huang, En-Pei Hu, Tzu-Quan Lin, Yuan-Kuei Wu, Kuan-Po Huang, Hsiao-Ying Huang, Huang-Cheng Chou, Kai-Wei Chang, Cheng-Han Chiang, Boris Ginsburg, Yu-Chiang Frank Wang, Hung-yi Lee ยท 2025

We introduce DeSTA2.5-Audio, a general-purpose Large Audio Language Model (LALM) designed for robust auditory perception and instruction-following. Recent LALMs augment Large Language Models (LLMs) wiโ€ฆ

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Engineering Preprint PDF DOI

Conversations with Andrea: Visitors' Opinions on Android Robots in a Museum

Marcel Heisler, Christian Becker-Asano ยท 2025

The android robot Andrea was set up at a public museum in Germany for six consecutive days to have conversations with visitors, fully autonomously. No specific context was given, so visitors could staโ€ฆ

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Engineering Preprint PDF DOI

SAKURA: On the Multi-hop Reasoning of Large Audio-Language Models Based on Speech and Audio Information

Chih-Kai Yang, Neo Ho, Yen-Ting Piao, Hung-yi Lee ยท 2025

Large audio-language models (LALMs) extend the large language models with multimodal understanding in speech, audio, etc. While their performances on speech and audio-processing tasks are extensively โ€ฆ

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Engineering Preprint PDF DOI

UMArm: Untethered, Modular, Portable, Soft Pneumatic Arm

Runze Zuo, Dong Heon Han, Richard Li, Saima Jamal, Daniel Bruder ยท 2025

Robotic arms are essential to modern industries, however, their adaptability to unstructured environments remains limited. Soft robotic arms, particularly those actuated pneumatically, offer greater aโ€ฆ

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