Results 1 to 10 of about 977,637 (120)
Research on Authentic Signature Identification Method Integrating Dynamic and Static Features
Applied Sciences, 2022 In many fields of social life, such as justice, finance, communication and so on, signatures are used for identity recognition. The increasingly convenient and extensive application of technology increases the opportunity for forged signatures.
Jiaxin Lu +4 more
doaj +1 more source
Analysis of sit-to-stand in sit-to-walk with an admittance controlled robotic walker
Nihon Kikai Gakkai ronbunshu, 2023 We examined the effects of the robotic walker’s dynamic characteristics on postural stability, operating forces, ground reaction forces (GRF), and muscle activity in young healthy adults during sit-to-stand (STS) and sit-to-walk (STW) tasks.
Tairi TSUCHINO +2 more
doaj +1 more source
Controlling the Q-Point in Distributed Feedback Lasers Using a Numerical Optimization Methodology [PDF]
Engineering and Technology Journal, 2019 In this paper, a new methodology for controlling the Q-point in the distributed feedback (DFB) lasers is proposed. The method based on reducing the DFB transient period (TP) by optimizing laser’s model parameters numerically.
Hisham Hisham
doaj +1 more source
Shuitu baochi tongbao, 2023 [Objective] The spatial and temporal dynamic law and future change trend of groundwater level in Shanshan County of Xinjiang Uygur Autonomous Region during 2011—2020 were studied in order to provide scientific support for the determination of groundwater
Ze Chen +4 more
doaj +1 more source
Study on the Coupling Relationship between Wear and Dynamics in Planetary Gear Systems
Machines, 2023 The occurrence of wear is hard to avoid in gear systems because of their transmission principle. Wear will lead to a deviation of the system’s performance from the design objectives or even failure.
Jun Chen, Ning Dong, Jiahua Min
doaj +1 more source
Applied Sciences, 2023 The use of air springs has become widespread in various industries due to their exceptional superelastic properties; however, their strong nonlinear characteristics have become a hindrance to numerical simulations of air springs and have garnered ...
Yuru Li +4 more
doaj +1 more source
Eksperimentiniai linijinio keitiklio sistemos tyrimai / Experimental research of linear encoder
Mokslas: Lietuvos Ateitis, 2018 Knowledge of the ongoing processes in the linear encoder and application of new technologies allows to solve problems and adapt to increasingly tightening requirements.
Donatas Gurauskis +3 more
doaj +1 more source
PMSM Wind Farm Aggregation Algorithm Based on Power Equivalence Principle
Frontiers in Energy Research, 2021 With the continuing increase of offshore wind farm power scale, it is urgent to propose a simplified wind farm model, which aggregates the entire wind farm into single or several aggregated wind turbine generators (WTGs), aiming to save computing ...
Haoshu Shao +5 more
doaj +1 more source
Dynamic analysis of liquid annular seals with herringbone grooves on the rotor based on the perturbation method [PDF]
Royal Society Open Science, 2018 Annular seals have significant effects on the hydraulic and rotordynamic performances of turbomachinery. In this paper, an analysis method for calculating the leakage flow rates and dynamic characteristics of liquid annular seals with herringbone grooves
Lulu Zhai +3 more
doaj +1 more source
Analysis and Identification of a Dynamic Model for Proportional Solenoid
IEEE Access, 2021 To solve the problem of difficult analysis and modeling of the strongly nonlinear characteristics of a proportional solenoid (PS) valve drive component, namely, the PS in engineering, a simplified mathematical model was established using a power bond ...
Zeqin Peng +5 more
doaj +1 more source