Results 31 to 40 of about 18,405 (198)

Improved mineralization of dental enamel by electrokinetic delivery of F− and Ca2+ ions

Scientific Reports, 2023
This in vitro study evaluated the effects of the infiltration of F- and Ca2+ ions into human enamel by electrokinetic flow (EKF) on the enamel microhardness and F- content.
NamBeng Tay, HiongYap Gan, Frederico Barbosa de Sousa, Lu Shen, Diego Figueiredo Nóbrega, Chenhui Peng, LaTonya Kilpatrick-Liverman, Wei Wang, Stacey Lavender, Shira Pilch, Jongyoon Han   +10 more
doaj   +1 more source

Measurement Noise Covariance-Adapting Kalman Filters for Varying Sensor Noise Situations

Sensors, 2021
An accurate and reliable positioning system (PS) is a significant topic of research due to its broad range of aerospace applications, such as the localization of autonomous agents in GPS-denied and indoor environments.
Anirudh Chhabra, Jashwanth Rao Venepally, Donghoon Kim   +2 more
doaj   +1 more source

A Localization and Tracking Approach in NLOS Environment Based on Distance and Angle Probability Model

Sensors, 2019
In this paper, an optimization algorithm is presented based on a distance and angle probability model for indoor non-line-of-sight (NLOS) environments.
Xin Tian, Guoliang Wei, Jianhua Wang, Dianchen Zhang   +3 more
doaj   +1 more source

Tracking results of the EKF-Max method.

, 2022
Tracking results of the EKF-Max method.
Chuanping Zhou (14204340), Baochun Qiu (14204337), Zefei Zhu (4438117), Maofa Wang (14204334), Li Ma (46633)   +4 more
core   +1 more source

Robust EKF-Based Wireless Congestion Control [PDF]

2010 IEEE International Conference on Communications, 2010
Many of the recently proposed high performance congestion control protocols rely on an estimation of the available link bandwidths. Specially, XCP and VCP need an explicit knowledge of the link bandwidth. However, wireless networks are characterized by bandwidth variations due to the openness of air links.
Zhipeng Huang 0002, Xiaolong Li 0006, Homayoun Yousefi'zadeh   +2 more
openaire   +2 more sources

Estimativa de Mapa de Eficiência para Máquinas Elétricas Através do Método de Filtro de Kalman Estendido

Eletrônica de Potência
Neste artigo é apresentado um método para a estimativa do mapa de eficiência em máquinas elétricas sem a necessidade de transdutores de torque ou dinamômetros.
Victor Hugo Kittel Ries, Gierri Waltrich, Anderson Vaccari   +2 more
doaj   +1 more source

Monitoring Plasma Glucose Concentration from Interstitial Glucose Measurements for Patients at the Intensive Care Uni

Ingenierías USBMed, 2016
The glucose homeostasis is responsible for regulating the blood glucose concentration around 100 mg / dl. As soon as this mechanism is broken due to the inability of the pancreas to produce insulin, the blood glucose levels increase and patients are ...
Estefanía Aguirre-Zapata, José Fernando García-Tirado   +1 more
doaj   +1 more source

PSO-Based EKF Estimator Design for PMBLDC Motor [PDF]

Engineering and Technology Journal, 2016
The estimation of motor state variables is an important criterion in the drive performance, especially for high accuracy required, for that reason it’s-necessary to estimate rotor-position-continuously not for sixty-electrical-degrees as in most existing
Ahmed Hammood Abed, Mohammed Moanes E. Ali   +1 more
doaj   +1 more source

Sun-Direction Estimation Under the Effect of Lunar Albedo

Havacılık ve Uzay Teknolojileri Dergisi, 2022
Spacecraft or the instruments are directed to certain directions or points in order to successfully complete their mission. Solar sensors are commonly used as they are capable of being used in planetary or interplanetary space missions in the solar ...
Demet Çilden Güler
doaj  

Development of an EKF Based Gyro Calibration Method for High-Precision Attitude Estimation [PDF]

فصلنامه علوم و فناوری فضایی
In high-resolution remote sensing satellites, achieving stability and meeting stringent pointing requirements are crucial for mission success. Accurate gyroscopes are employed as primary attitude sensors to ensure this stability.
Amir Labibian
doaj   +1 more source