Expertini Research Research

Browse Research Papers

753+ open-access research outputs.

✕ Clear
🔍 ankush das 📂 Engineering 📄 Preprint
Showing 753 results for "ankush das" in Engineering · Preprint
Engineering Preprint PDF DOI

Wave Tank Experiment for Sea State Monitoring with Distributed Acoustic Sensing

Yoshiyuki Yajima, Sakiko Mishima, Noriyuki Tonami, Tomoyuki Hino, Shugo Aibe, Junichiro Saikawa, Koji Mizuguchi · 2026

Monitoring sea states across the offshore wind farm areas is essential to keep their structures safe, efficiently operate the systems, and assess the environmental effects of wind turbines. Convention…

Read Paper →
Engineering Preprint PDF DOI

Monitoring exposure-length variations in submarine power cables using distributed fiber-optic sensing

Sakiko Mishima, Yoshiyuki Yajima, Noriyuki Tonami, Tomoyuki Hino, Shugo Aibe, Junichiro Saikawa, Koji Mizuguchi · 2026

This study proposes an anomaly-detection framework for monitoring exposure-length variations in submarine free-span cables using Distributed Acoustic Sensing (DAS), which is one of the distributed fib…

Read Paper →
Engineering Preprint PDF DOI

NL-COMM-Sat: Breaking the Direct Device-to-Satellite Communication Barrier via "Aggressive" Non-Orthogonal Transmissions and Non-Linear Processing

Konstantinos Nikitopoulos, Chathura Jayawardena · 2026

Direct Device-to-Satellite (D2S) communications, which enable direct satellite connectivity with unmodified user equipment (UE), not only expand global coverage but also reshape the evolution of futur…

Read Paper →
Engineering Preprint PDF DOI

Design Space Exploration for ReRAM-based Architectures to Address Scaling Non-idealities

Ching-Yi Lin, Sahil Shah · 2026

ReRAM-based in-memory computing (IMC) architectures are promising candidates for energy-efficient matrix-vector multiplication. While scaling the size of ReRAM arrays allows for the amortization of po…

Read Paper →
Engineering Preprint PDF DOI

Wildfires Quasi-Implicit Alternative-Direction Simulations using Isogeometric Finite Element Method

Juliusz Wasieleski, Tomasz S{l}uzalec, Maciej Wozniak, Marcin {L}os, Andres Medina, Paulina Sepulveda, Albert Oliver Serra, Eirik Valseth, Anna Paszynska, Maciej Paszynski · 2026

We develop a wildfire simulation model that evolves the temperature scalar field using an energy balance equation accounting for heat generation, transport, and loss. For these equations, we develop q…

Read Paper →
Engineering Preprint PDF DOI

Joint Scheduling of Multi-Band Radar Sensing and DNN Inference for Cross-Stage Parallelism

Yanan Du, Sai Xu, Kezhi Wang, Yansha Deng · 2026

This paper studies end-to-end latency minimization for a multi-band radar sensing and deep neural network (DNN) inference pipeline. Unlike conventional stage-wise designs that treat radar sensing and …

Read Paper →
Engineering Preprint PDF DOI

DAG-STL: A Hierarchical Framework for Zero-Shot Trajectory Planning under Signal Temporal Logic Specifications

Ruijia Liu, Ancheng Hou, Xiao Yu, Xiang Yin · 2026

Signal Temporal Logic (STL) is a powerful language for specifying temporally structured robotic tasks. Planning executable trajectories under STL constraints remains difficult when system dynamics and…

Read Paper →
Engineering Preprint PDF DOI

DAE-Aware Bayesian Inference for Joint Generator-Network Parameter Estimation

Abdallah Alalem Albustami, Ahmad F. Taha, Sankaran Mahadevan · 2026

This paper addresses the classic problem of parameter estimation (PE) in multimachine power system models. Such models are typically described by a set of nonlinear differential-algebraic equations (D…

Read Paper →
Engineering Preprint PDF DOI

AffordSim: A Scalable Data Generator and Benchmark for Affordance-Aware Robotic Manipulation

Mingyang Li, Haofan Xu, Haowen Sun, Xinzhe Chen, Sihua Ren, Liqi Huang, Xinyang Sui, Chenyang Miao, Qiongjie Cui, Zeyang Liu, Xingyu Chen, Xuguang Lan · 2026

Simulation-based data generation has become a dominant paradigm for training robotic manipulation policies, yet existing platforms do not incorporate object affordance information into trajectory gene…

Read Paper →
Engineering Preprint PDF DOI

Variable Dead-Time Based Novel Soft-Start Method for Dual Active Bridge Converters

Sachith Wijesooriya, Sandun S. Kuruppu · 2026

Effective startup control is critical for the safe and reliable operation of Dual Active Bridge (DAB) converters. Unlike traditional soft-start techniques that rely solely on phase-shift control or fi…

Read Paper →
Engineering Preprint PDF DOI

Decision-focused Conservation Voltage Reduction to Consider the Cascading Impact of Forecast Errors

Qintao Du, Ran Li, Weiyi Lv, Huan Zhou, Moduo Yu, Jianzhe Liu · 2026

Conservation Voltage Reduction (CVR) relies on the effective coordination of slow-acting devices, such as OLTCs and CBs, and fast-acting devices, such as SVGs and PV inverters, typically implemented t…

Read Paper →
Engineering Preprint PDF DOI

Design and Implementation of a Multi-Sensor DAQ System for Comparative Photovoltaic Performance Analysis

Maickol Fernandez-Obando, Luis G. Leon-Vega, Leonardo Cardinale-Villalobos, Christopher Vega-Sanchez, Luis D. Murillo-Soto · 2026

The rigorous analysis of specialized physical processes often demands custom data acquisition architectures that offer flexibility and precision beyond the capabilities of general-purpose commercial l…

Read Paper →
Engineering Preprint PDF DOI

DAE Index Reduction for Electromagnetic Transient Models

Fiona Majeau, Jose Daniel Lara, Eduardo Corona, Bri-Mathias Hodge · 2026

Electromagnetic transient (EMT) models are index-2 differential-algebraic equations when they include certain topologies and are formulated with modified nodal analysis. Such systems are difficult to …

Read Paper →
Engineering Preprint PDF DOI

Safety-Critical Centralized Nonlinear MPC for Cooperative Payload Transportation by Two Quadrupedal Robots

Ruturaj S. Sambhus, Yicheng Zeng, Kapi Ketan Mehta, Jeeseop Kim, Kaveh Akbari Hamed · 2026

This paper presents a safety-critical centralized nonlinear model predictive control (NMPC) framework for cooperative payload transportation by two quadrupedal robots. The interconnected robot-payload…

Read Paper →
Engineering Preprint PDF DOI

A Data-Aided Power Transformer Differential Protection without Inrush Blocking Module

Zexuan Lin, Songhao Yang, Yubo Zhang, Zhiguo Hao, Baohui Zhang · 2026

When a slightly faulty transformer closes without load, the current waveform presents the coexistence of inrush and fault current. At this time, the inrush blocking module will block the relay, which …

Read Paper →
Engineering Preprint PDF DOI

VRUD: A Drone Dataset for Complex Vehicle-VRU Interactions within Mixed Traffic

Ziyu Wang, Hongrui Kou, Cheng Wang, Ruochen Li, Hubert P. H. Shum, Amir Atapour-Abarghouei, Yuxin Zhang · 2026

The Operational Design Domain (ODD) of urbanoriented Level 4 (L4) autonomous driving, especially for autonomous robotaxis, confronts formidable challenges in complex urban mixed traffic environments. …

Read Paper →
Engineering Preprint PDF DOI

Spatial Upper Bound of Radiated Power in Active Antenna Systems

Dominique Nussbaum, Christ Rizk, Eric Seguenot, Florian Kaltenberger, Andrea Moro, Alessandro Sinicco, Laura Pometcu · 2026

The assessment of unwanted radiated emissions from Active Antenna Systems (AAS) has become a critical issue in adjacent-band coexistence scenarios. In this paper, we establish the existence of a deter…

Read Paper →
Engineering Preprint PDF DOI

Graph-Theoretic Analysis of Residual Generation Under Computational Constraints

Jan {AA}slund · 2026

A unified structural framework is presented for model-based fault diagnosis that explicitly incorporates both fault locations and constraints imposed by the residual generation methodology. Building o…

Read Paper →
Engineering Preprint PDF DOI

Far-field compressive ultrasound beamforming

Nikunj Khetan, Jerome Mertz · 2026

We present a compressive beamforming method for coherent plane-wave compounding (CPWC) ultrasound imaging based on a far-field decomposition of the received radiofrequency (RF) data into virtual plane…

Read Paper →
Engineering Preprint PDF DOI

Direct Digital-to-Physical Synthesis: From mmWave Transmitter to Qubit Control

Najme Ebrahimi, Haoling Li, Gun Suer, Kin Chung Fong, Leonardo Ranzani · 2026

The increasing demand for high-speed wireless connectivity and scalable quantum information processing has driven parallel advancements in millimeter-wave (MMW) communication transmitters and cryogeni…

Read Paper →
Page 1 of 38 Next →