Results 21 to 30 of about 49,247 (264)

Sensor Saturation Compensated Smoothing Algorithm for Inertial Sensor Based Motion Tracking

Sensors, 2014
In this paper, a smoothing algorithm for compensating inertial sensor saturation is proposed. The sensor saturation happens when a sensor measures a value that is larger than its dynamic range. This can lead to a considerable accumulated error.
Quoc Khanh Dang, Young Soo Suh
doaj   +1 more source

A State-Compensated Deep Deterministic Policy Gradient Algorithm for UAV Trajectory Tracking

Machines, 2022
The unmanned aerial vehicle (UAV) trajectory tracking control algorithm based on deep reinforcement learning is generally inefficient for training in an unknown environment, and the convergence is unstable.
Jiying Wu, Zhong Yang, Luwei Liao, Naifeng He, Zhiyong Wang, Can Wang   +5 more
doaj   +1 more source

A Two Stage Op-Amp Phase Margin Symbolic Expression

MATEC Web of Conferences, 2018
A phase margin symbolic expression of a two stage Miller compensated operational amplifier is computed in this paper. Using this expression, an analysis to evaluate the influence of the Miller and load capacitance on phase margin is performed.
Gheorghe Alexandru Gabriel, Marin Mihai Eugen   +1 more
doaj   +1 more source

A Subaperture Motion Compensation Algorithm for Wide-Beam, Multiple-Receiver SAS Systems

Journal of Marine Science and Engineering, 2023
Uncompensated motion errors can seriously affect the imaging quality of synthetic aperture sonars (SASs). In the existing line-by-line motion compensation (MOCO) algorithms for wide-beam multiple-receiver SAS systems, the approximate form of the range ...
Jiafeng Zhang, Guangli Cheng, Jinsong Tang, Haoran Wu, Zhen Tian   +4 more
doaj   +1 more source

Implementation of High Time Delay Accuracy of Ultrasonic Phased Array Based on Interpolation CIC Filter

Sensors, 2017
In order to improve the accuracy of ultrasonic phased array focusing time delay, analyzing the original interpolation Cascade-Integrator-Comb (CIC) filter, an 8× interpolation CIC filter parallel algorithm was proposed, so that interpolation and ...
Peilu Liu, Xinghua Li, Haopeng Li, Zhikun Su, Hongxu Zhang   +4 more
doaj   +1 more source

Motion-Compensated PET Image Reconstruction via Separable Parabolic Surrogates

Mathematics, 2022
The effective resolution of positron emission tomography (PET) can be significantly degraded by patient motion during data acquisition. This is especially true in the thorax due to respiratory motion.
Nicholas E. Protonotarios, George A. Kastis, Andreas D. Fotopoulos, Andreas G. Tzakos, Dimitrios Vlachos, Nikolaos Dikaios   +5 more
doaj   +1 more source

Forecasting the Dialysis Burden in Japan: Validation‐Based Projections of Prevalence and Incidence Through 2050

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Japan has one of the highest dialysis prevalence rates worldwide and a shrinking, aging population. Whether dialysis burden has entered a sustained post‐peak phase or whether recent declines partly reflect pandemic‐related disruptions remains uncertain.
Hatice Şahin, Berrak Itır Aylı, Nüket Paksoy   +2 more
wiley   +1 more source

Light and Displacement Compensation-Based iPPG for Heart-Rate Measurement in Complex Detection Conditions

Sensors
A light and displacement-compensation-based iPPG algorithm is proposed in this paper for heart-rate measurement in complex detection conditions. Two compensation sub-algorithms, including light compensation and displacement compensation, are designed and
Shubo Bi, Haipeng Wang, Shuaishuai Zhang
doaj   +1 more source

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

FEBS Letters, EarlyView.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson, Tomáš Gedeon, Mauricio Garcia Benitez, Campbell Putnam, William R. Harcombe, Radhakrishnan Mahadevan, Ashley E. Beck   +6 more
wiley   +1 more source

Keratin 19 as a prognostic marker and contributing factor of metastasis and chemoresistance in high‐grade serous ovarian cancer

Molecular Oncology, EarlyView.
Keratin 19 (KRT19) is overexpressed in high‐grade serous ovarian cancer with high levels of Kallikrein‐related peptidases (KLK) 4–7 and is associated with poor survival. In vivo analyses demonstrate that elevated KRT19 increases peritoneal tumour burden.
Sophia Bielesch, Isabel Vogel, Sina Nokodian, Johanna Moeller, Antonia Blechschmidt, Vicky Hecht, Vanessa Kuentzel, Katharina Thiedig, Melissa Schwab, Oliver Schilling, Holger Bronger, Marion Kiechle, Viktor Magdolen, Tobias Dreyer   +13 more
wiley   +1 more source