Results 41 to 50 of about 382,794 (354)

The control algorithm of whole angle mode for HRG based on the vector composition

open access: yesEURASIP Journal on Wireless Communications and Networking, 2021
The Hemispherical Resonator Gyroscope (HRG) has many advantages such as high precision, high reliability and long life-time, it is widely used in the space-launcher and the satellites.
Wanliang Zhao   +3 more
doaj   +1 more source

Weight Control System [PDF]

open access: yes, 1969
Weight Control System, a set of linked computer programs which provides weight and balance reports from magnetic tape files, provides weight control and reporting on launch vehicle programs.
Dyer, A., Jr.   +2 more
core   +1 more source

Bistable Mechanisms 3D Printing for Mechanically Programmable Vibration Control

open access: yesAdvanced Engineering Materials, EarlyView.
This work introduces a 3D‐printed bistable mechanism integrated into tuned mass dampers (TMDs) for mechanically adaptive passive vibration suppression. Through optimized geometry, the bistable design provides adaptable vibration reduction across a broad range of scenarios, achieving effective vibration mitigation without complex controls or external ...
Ali Zolfagharian   +4 more
wiley   +1 more source

Implementation of unknown parameter estimation procedure for hybrid and discrete non‐linear systems

open access: yesIET Radar, Sonar & Navigation
The application of the hybrid extended Kalman filter (HEKF), hybrid unscented Kalman filter (HUKF), hybrid particle filter (HPF), and hybrid extended Kalman particle filter (HEKPF) is discussed for hybrid non‐linear filter problems, when prediction ...
Mahdi Razm‐Pa
doaj   +1 more source

A High-Accuracy, High Anti-Noise, Unbiased Frequency Estimator Based on Three CZT Coefficients for Deep Space Exploration Mission

open access: yesSensors, 2022
Deep space exploration navigation requires high accuracy of the Doppler measurement, which is equivalent to a frequency estimation problem. Because of the fence effect and spectrum leakage, the frequency estimation performances, which is based on the FFT
Weitao Lu   +4 more
doaj   +1 more source

Improving supply chain management in construction: what can be learned from the aerospace industry? [PDF]

open access: yes, 2003
In order to provide for controllable delivery, reliable lead times and efficient customer response, lean manufacturing and platform assembly practices play an important role in supply chains in the aerospace industry.
Voordijk, H., Vrijhoef, R.
core   +1 more source

Enhancing Corrosion Resistance and Mechanical Strength of 3D‐Printed Iron Polylactic Acid for Marine Applications via Laser Surface Texturing

open access: yesAdvanced Engineering Materials, EarlyView.
Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat   +6 more
wiley   +1 more source

Three dimensional cooperative guidance for intercepting a manoeuvering target

open access: yesIET Control Theory & Applications
In this paper, an optimal distributed guidance law is proposed for cooperatively intercepting a manoeuvering target in three dimensional (3D) framework. Based on the 3D kinematic model of interceptors and the target, the kinematic engagement equations in
Chang Yu   +3 more
doaj   +1 more source

Characteristic analysis and filtering algorithm design for UNGM model

open access: yesXibei Gongye Daxue Xuebao, 2023
The univariate non-stationary growth model (UNGM) is widely used in the verification of nonlinear filters, and the unscented Kalman filter (UKF) is often used as the reference filter for comparative analysis when using this model to evaluate the filter ...
LU Shan, ZHANG Shiyuan
doaj   +1 more source

Shop-floor bargaining and the struggle for job control in the British automobile and aerospace industries 1950-1982 [PDF]

open access: yes, 2011
In the UK automobile and aerospace industries, the struggle over job control and rewards for labour expended in the production process was particularly intense in the period of steady economic growth, high and stable employment, and low inflation ...
Danford, Andrew   +2 more
core  

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