Results 41 to 50 of about 2,643,535 (184)

Strategies for Positive Partial Transpose (PPT) States in Quantum Metrologies with Noise

, 2021
Quantum metrology overcomes standard precision limits and has the potential to play a key role in quantum sensing. Quantum mechanics, through the Heisenberg uncertainty principle, imposes limits on the precision of measurements.
Majumder, Arunava, Kwek, Leong-Chuan, Arunava Majumder, Harshank Shrotriya, Leong-Chuan Kwek, Shrotriya, Harshank   +5 more
core   +1 more source

A representation-free description of the Kasevich–Chu interferometer: a resolution of the redshift controversy

New Journal of Physics, 2013
Motivated by a recent claim by Müller et al (2010 Nature 463 926–9) that an atom interferometer can serve as an atom clock to measure the gravitational redshift with an unprecedented accuracy, we provide a representation-free description of the Kasevich ...
Wolfgang P Schleich, Daniel M Greenberger, Ernst M Rasel   +2 more
doaj   +1 more source

Analytical description of collisional decoherence in a BEC double-well accelerometer [PDF]

European Physical Journal D : Atomic, Molecular and Optical Physics
BEC-based quantum sensors offer a huge, yet not fully explored potential in gravimetry and accelerometry. In this paper, we study a possible setup for such a device, which is a weakly interacting Bose gas trapped in a double-well potential. In such a
Kateryna Korshynska, Sebastian Ulbricht
semanticscholar   +1 more source

Toward Complex In‐Car Environment Human–Vehicle Interactions Through Smart Glasses and sEMG‐Based Gesture Recognition

Advanced Intelligent Systems, EarlyView.
This study proposes a novel weighted random forest multimodal fusion method that combines smart glasses and sEMG data for in‐vehicle gesture interaction. It realizes stable performance in dim, occluded, and other constrained scenarios, providing feasible solutions and laying a foundation for universal human–machine interaction.
Wenbo Zhang, Wenting Wei, Kuang Li, Chuyuan Bian, Junkai Xu, Jianing Qiu, Yuxi Lu, Bin He, Shuo Jiang   +8 more
wiley   +1 more source

Development Of Tilt And Vibration Measurement And Detection System Using MEMS Accelerometer As A Sensor [TK7875. K45 2008 f rb]. [PDF]

, 2008
Dalam projek ini, sistem pengukuran dan pengesan isyarat sudut miring dan isyarat getaran menggunakan meter pecutan MEMS yang mempunyai dua paksi deria X dan Y dibina dengan jayanya. In this project, a measurement and detection system to detect tilt
Abd Wahid, Khairul Anuar
core   +1 more source

Fast frequency relocking for synchronization enhanced resonant accelerometer

Microsystems & Nanoengineering, 2022
Synchronization, as a unique phenomenon, has been extensively studied in biology, chaotic systems, nonlinear dynamics, quantum information, and other fields. Benefiting from the characteristics of frequency amplification, noise suppression, and stability
Liu Xu, Yong-Hong Qi, Zhuangde Jiang, Xueyong Wei   +3 more
semanticscholar   +1 more source

Distributed State Estimation for Mobile Robots in LiDAR Sensor Networks With Intermittent Inertial Measurements

Advanced Intelligent Systems, EarlyView.
A scalable distributed observer framework for LiDAR sensor networks is presented for robust tracking and pose estimation of mobile robots. By combining adaptable 3D detection, clustering‐based communication reduction, and intermittent inertial fusion, accurate and efficient estimation is achieved under occlusions and sensing constraints, with formally ...
Isabella Luppi, Ehsan Hashemi
wiley   +1 more source

A Soft Robotic Finger With Deep Learning‐Enhanced Tactile Sensing for Texture and Softness Recognition

Advanced Intelligent Systems, EarlyView.
Inspired by human touch, a tendon‐driven soft robotic finger combines multimodal tactile sensing and deep learning to simultaneously perceive texture and softness on deformable surfaces. A CNN‐LSTM model fuses pressure, accelerometer, and gyroscope signals to accurately classify material properties, achieving up to 95.4% texture and 97.0% softness ...
Gorkem Anil Al, Arya Shabani, Nicos Hadjigeorgiou, James Fant‐Male   +3 more
wiley   +1 more source

Machine Learning-Based Accelerometer Transplantation for GRACE and Future Quantum-Enabled Satellite Gravimetry

GRACE/GRACE-FO Science Team Meeting 2026
Accurate and continuous determination of the Earth’s time-variable gravity field is essential for monitoring mass redistribution related to hydrological, climatic, and geodynamic processes.
M. Romeshkani, J. Mueller, Sahar Ebadi
semanticscholar   +1 more source

Fatigue‐Driven Adaptive Assistance for a Semi‐Active Upper‐Limb Occupational Exoskeleton

Advanced Intelligent Systems, EarlyView.
Physical fatigue during a physical activity is estimated in real time to enable adaptive exoskeleton assistance. By continuously adjusting the level of support according to the user’s fatigue, this approach reduces physical demand and provides a pathway toward personalized exoskeleton assistance.
Seemab Zakir, Lorenzo Grazi, Simone Prisinzano, Francesco Giovacchini, Nicola Vitiello, Emilio Trigili, Simona Crea   +6 more
wiley   +1 more source