Expertini Research Research

Browse Research Papers

892+ open-access research outputs.

✕ Clear
🔍 chris piech 📂 Engineering 📄 Preprint
Showing 892 results for "chris piech" in Engineering · Preprint
Engineering Preprint PDF DOI

Characterizing pitch and roll torque coupling in insect-sized flapping-wing robots using a microfabricated gimbal

Aaron Weber, Daksh Dhingra, Sawyer B. Fuller · 2026

Sub-gram flapping-wing flying insect robots (FIRs) are challenging to model because of mechanical complexity in their wings, unsteady aerodynamic flow, and the difficulty of making precise measurement…

Read Paper →
Engineering Preprint PDF DOI

A Kinematic Framework for Evaluating Pinch Configurations in Robotic Hand Design without Object or Contact Models

HyoJae Kang, Joonho Lee, Hyunmok Jung, Dong Il Park · 2026

Evaluating the pinch capability of a robotic hand is important for understanding its functional dexterity. However, many existing grasp evaluation methods rely on object geometry or contact force mode…

Read Paper →
Engineering Preprint PDF DOI

Radar Odometry Subject to High Tilt Dynamics of Subarctic Environments

Matej Boxan, William Larrivee-Hardy, Francois Pomerleau · 2026

Rotating FMCW radar odometry methods often assume flat ground conditions. While this assumption is sufficient in many scenarios, including urban environments or flat mining setups, the highly dynamic …

Read Paper →
Engineering Preprint PDF DOI

Periodic Steady-State Control of a Handkerchief-Spinning Task Using a Parallel Anti-Parallelogram Tendon-driven Wrist

Lei Liu, Haonan Zhang, Huahang Xu, Zefan Zhang, Lulu Chang, Lei Lv, Andrew Ross McIntosh, Kai Sun, Zhenshan Bing, Jiahong Dong, Fuchun Sun · 2026

Spinning flexible objects, exemplified by traditional Chinese handkerchief performances, demands periodic steady-state motions under nonlinear dynamics with frictional contacts and boundary constraint…

Read Paper →
Engineering Preprint PDF DOI

Classical Machine Learning Baselines for Deepfake Audio Detection on the Fake-or-Real Dataset

Faheem Ahmad, Ajan Ahmed, Masudul Imtiaz · 2026

Deep learning has enabled highly realistic synthetic speech, raising concerns about fraud, impersonation, and disinformation. Despite rapid progress in neural detectors, transparent baselines are need…

Read Paper →
Engineering Preprint PDF DOI

ProSDD: Learning Prosodic Representations for Speech Deepfake Detection against Expressive and Emotional Attacks

Aurosweta Mahapatra, Ismail Rasim Ulgen, Kong Aik Lee, Nicholas Andrews, Berrak Sisman · 2026

Speech deepfake detection (SDD) systems perform well on standard benchmarks datasets but often fail to generalize to expressive and emotional spoofing attacks. Many methods rely on spoof-heavy trainin…

Read Paper →
Engineering Preprint PDF DOI

Simulation of Adaptive Running with Flexible Sports Prosthesis using Reinforcement Learning of Hybrid-link System

Yuta Shimane, Ko Yamamoto · 2026

This study proposes a reinforcement learning-based adaptive running motion simulation for a unilateral transtibial amputee with the flexibility of a leaf-spring-type sports prosthesis using hybrid-lin…

Read Paper →
Engineering Preprint PDF DOI

Accurate and Reliable Uncertainty Estimates for Deterministic Predictions Extensions to Under and Overpredictions

Rileigh Bandy, Enrico Camporeale, Andong Hu, Thomas Berger, Rebecca Morrison · 2026

Computational models support high-stakes decisions across engineering and science, and practitioners increasingly seek probabilistic predictions to quantify uncertainty in such models. Existing approa…

Read Paper →
Engineering Preprint PDF DOI

From Cut-In to Rated: Multi-Region Floating Offshore Wind Farm Control for Secondary Frequency Regulation

Stephen Ampleman, Dennice F. Gayme · 2026

This paper describes a multi-region control framework for floating offshore wind farms. Specifically, we propose a novel generator torque controller that regulates rotor speed in Region 2, correspondi…

Read Paper →
Engineering Preprint PDF DOI

Brain-to-Speech: Prosody Feature Engineering and Transformer-Based Reconstruction

Mohammed Salah Al-Radhi, Geza Nemeth, Andon Tchechmedjiev, Binbin Xu · 2026

This chapter presents a novel approach to brain-to-speech (BTS) synthesis from intracranial electroencephalography (iEEG) data, emphasizing prosody-aware feature engineering and advanced transformer-b…

Read Paper →
Engineering Preprint PDF DOI

MARS-Dragonfly: Agile and Robust Flight Control of Modular Aerial Robot Systems

Rui Huang, Zhiqian Cai, Siyu Tang, Pengxuan Wei, Lidong Li, Xin Chen, Wenhan Cao, Zhenyu Zhang, Lin Zhao · 2026

Modular Aerial Robot Systems (MARS) comprise multiple drone units with reconfigurable connected formations, providing high adaptability to diverse mission scenarios, fault conditions, and payload capa…

Read Paper →
Engineering Preprint PDF DOI

Nonlinear System Identification of Variable-Pitch Propellers Using a Wiener Model

David Grasev, Miguel A. Mendez · 2026

This work presents the system identification of a variable-pitch propeller (VPP) powertrain, encompassing the full actuation chain from PWM signals to thrust generation, with the aim of developing com…

Read Paper →
Engineering Preprint PDF DOI

Robust Pitch Estimation and Tracking for Speakers Based on Subband Encoding and the Generalized Labeled Multi-Bernoulli Filter

Shoufeng Lin · 2026

This paper proposes a new pitch estimator and a novel pitch tracker for speakers. We first decompose the sound signal into subbands using an auditory filterbank, assuming time-frequency sparsity of hu…

Read Paper →
Engineering Preprint PDF DOI

The QuadSoft: Design, Construction, and Experimental Validation of a Soft and Actuated Quadrotor

Rodolfo Verdin, Hugo Moreno, Mark W. Spong, Gerardo Flores · 2026

This paper presents QuadSoft, a novel fully actuated quadrotor equipped with continuous-curvature, tendon-driven soft robotic arms. The design combines a semi-rigid central frame with flexible arms, e…

Read Paper →
Engineering Preprint PDF DOI

Optimistic Online LQR via Intrinsic Rewards

Marcell Bartos, Bruce D. Lee, Lenart Treven, Andreas Krause, Florian Dorfler, Melanie N. Zeilinger · 2026

Optimism in the face of uncertainty is a popular approach to balance exploration and exploitation in reinforcement learning. Here, we consider the online linear quadratic regulator (LQR) problem, i.e.…

Read Paper →
Engineering Preprint PDF DOI

ParaSpeechCLAP: A Dual-Encoder Speech-Text Model for Rich Stylistic Language-Audio Pretraining

Anuj Diwan, Eunsol Choi, David Harwath · 2026

We introduce ParaSpeechCLAP, a dual-encoder contrastive model that maps speech and text style captions into a common embedding space, supporting a wide range of intrinsic (speaker-level) and situation…

Read Paper →
Engineering Preprint PDF DOI

A Self-Rotating Tri-Rotor UAV for Field of View Expansion and Autonomous Flight

Xiaobin Zhou, Zihao Zheng, Aoxu Jin, Lei Qiang, Bo Zhu · 2026

Unmanned Aerial Vehicles (UAVs) perception relies on onboard sensors like cameras and LiDAR, which are limited by the narrow field of view (FoV). We present Self-Perception INertial Navigation Enabled…

Read Paper →
Engineering Preprint PDF DOI

A Nonvolatile Switchable-polarity EPM Valve

Bingchao Wang, Jonah Mack, Francesco Giorgio-Serchi, Adam A. Stokes · 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 topologies…

Read Paper →
Engineering Preprint PDF DOI

Design, Modelling and Characterisation of a Miniature Fibre-Reinforced Soft Bending Actuator for Endoluminal Interventions

Xiangyi Tan, Aoife McDonald-Bowyer, Danail Stoyanov, Agostino Stilli · 2026

Miniaturised soft pneumatic actuators are crucial for robotic intervention within highly constrained anatomical pathways. This work presents the design and validation of a fibre-reinforced soft actuat…

Read Paper →
Engineering Preprint PDF DOI

Affordance-Guided Enveloping Grasp Demonstration Toward Non-destructive Disassembly of Pinch-Infeasible Mating Parts

Masaki Tsutsumi, Takuya Kiyokawa, Gen Sako, Kensuke Harada · 2026

Robotic disassembly of complex mating components often renders pinch grasping infeasible, necessitating multi-fingered enveloping grasps. However, visual occlusions and geometric constraints complicat…

Read Paper →
Page 1 of 45 Next →