Results 61 to 70 of about 25,842 (241)

A State‐Adaptive Koopman Control Framework for Real‐Time Deformable Tool Manipulation in Robotic Environmental Swabbing

Advanced Robotics Research, EarlyView.
This work presents a state‐adaptive Koopman linear quadratic regulator framework for real‐time manipulation of a deformable swab tool in robotic environmental sampling. By combining Koopman linearization, tactile sensing, and centroid‐based force regulation, the system maintains stable contact forces and high coverage across flat and inclined surfaces.
Siavash Mahmoudi, Amirreza Davar, Dongyi Wang   +2 more
wiley   +1 more source

Dynamic Error Compensation for Ball Screw Feed Drive Systems Based on Prediction Model

Machines
The dynamic error is the dominant factor affecting multi-axis CNC machining accuracy. Predicting and compensating for dynamic errors is vital in high-speed machining.
Hongda Liu, Yonghao Guo, Jiaming Liu, Wentie Niu   +3 more
doaj   +1 more source

Precise Flowrate Control of Fluid Gear Pumps in Automated Painting Systems Using a Repetitive Controller

Applied Sciences, 2019
The fluid gear pump-based system has repetitive disturbances, such as flow ripples, due to the mechanical characteristics of the gear system. The periodic disturbances have negative effects on the precise flowrate control, which is essential for ...
Kiyang Park, Minsu Chang, Doyoung Jeon
doaj   +1 more source

Beam loading

, 2013
We begin by giving a description of the radio-frequency generator-cavity-beam coupled system in terms of basic quantities. Taking beam loading and cavity detuning into account, expressions for the cavity impedance as seen by the generator and as seen by ...
Gamp, Alexander
core   +1 more source

Abnormal Speech Motor Control in Individuals with 16p11.2 Deletions. [PDF]

, 2018
Speech and motor deficits are highly prevalent (>70%) in individuals with the 600 kb BP4-BP5 16p11.2 deletion; however, the mechanisms that drive these deficits are unclear, limiting our ability to target interventions and advance treatment.
Demopoulos, Carly, Fregeau, Brieana, Henderson-Sabes, Jennifer, Houde, John F, Kothare, Hardik, Mizuiri, Danielle, Nagarajan, Srikantan S, Sherr, Elliott H, Tjernagel, Jennifer   +8 more
core   +3 more sources

Doppler phase compensator clutter feedforward

Journal of «Almaz – Antey» Air and Space Defence Corporation, 2015
The method of maximum likelihood estimation algorithms synthesized phase Doppler clutter. The principles of construction and structural scheme of automatic compensator phase Doppler clutter feed-forward. A comparative analysis of the accuracy of the compensation offered automatic compensator.
openaire   +2 more sources

Macrophage Extracellular Traps in Immunity and Cancer

Advanced Science, EarlyView.
As a macrophage‐mediated innate defense mechanism, the dysregulated release of METs drives chronic inflammation and influences tumor progression. Furthermore, METs exhibit a functional duality within the tumor microenvironment, capable of both promoting and suppressing tumor development.
Junyao Li, Eugenie Nepovimova, Adam Grundel, Lukas Peter, Qinghua Wu, Kamil Kuca   +5 more
wiley   +1 more source

Multiharmonic rf feedforward system for compensation of beam loading and periodic transient effects in magnetic-alloy cavities of a proton synchrotron

Physical Review Special Topics. Accelerators and Beams, 2013
Beam loading compensation is a key for acceleration of a high intensity proton beam in the main ring (MR) of the Japan Proton Accelerator Research Complex (J-PARC).
Fumihiko Tamura, Chihiro Ohmori, Masanobu Yamamoto, Masahito Yoshii, Alexander Schnase, Masahiro Nomura, Makoto Toda, Taihei Shimada, Katsushi Hasegawa, Keigo Hara   +9 more
doaj   +1 more source

Design for improving the linearised flow control performance of large flow and high-pressure proportional valve

The Journal of Engineering, 2020
To improve the linearisation of the variable flow-regulate system under the open-loop control, a proportional solenoid valve with high-linearity performance was developed to meet that requirement of the high-precision and open-loop control. The design of
Zhen Zhang, Liang Liang, Liang Liang, Xudong Wang, Daihua Wang   +4 more
doaj   +1 more source

Persistently Increased Expression of PKMzeta and Unbiased Gene Expression Profiles Identify Hippocampal Molecular Traces of a Long‐Term Active Place Avoidance Memory and “Shadow” Proteins

Advanced Science, EarlyView.
Protein complexes like KIBRA‐PKMζ are crucial for maintaining memories, forming month‐long protein traces in memory‐tagged neurons, but conventional RNA‐seq analysis fails to detect their transcript changes, leaving memory molecules undetected in the shadows of abundantly‐expressed genes.
Jiyeon Han, Alejandro Grau‐Perales, Rayna M. Harris, Edith Lesburguères, Hsin‐Yi Kao, Asit Pal, Juan Marcos Alarcon, Todd C. Sacktor, Stefano Martiniani, Hans A. Hofmann, André A. Fenton   +10 more
wiley   +1 more source