Results 21 to 30 of about 78,108 (315)

Remaining Useful Life Interval Prediction for Complex System Based on BiGRU Optimized by Log-Norm

open access: yesIEEE Access, 2022
The task of remaining useful life (RUL) uncertainty management is the major challenge in solving the failure of the complex mechanical system. Primary research methods use statistical models or stochastic processes to fit the distribution of historical ...
Xiaojia Yan, Weige Liang, Dongxue Xu
doaj   +1 more source

Research on Lateral Maneuverability of a Supercavitating Vehicle Based on RBFNN Adaptive Sliding Mode Control with Rolling Restriction and Planing Force Avoidance

open access: yesMachines, 2023
This paper addresses the lateral motion control of a supercavitating vehicle and studies its ability to maneuver. According to the unique hydrodynamic characteristics of the supercavitating vehicle, highly coupled nonlinear 6-degree-of-freedom (DOF ...
Guang Yang, Faxing Lu, Junfei Xu
doaj   +1 more source

Oculomotor examination of the weapon focus effect: does a gun automatically engage visual attention? [PDF]

open access: yes, 2013
A person is less likely to be accurately remembered if they appear in a visual scene with a gun, a result that has been termed the weapon focus effect (WFE).
Flowe, Heather D.   +12 more
core   +1 more source

Energy balance model to assess the resistance of ballistic protection materials

open access: yesDefence Technology, 2023
NATO standards ''AEP-2920 Procedures for the Evaluation and Classification of Personal Armor'' and NIJ Standard – 0101.06, indicate the method to statistically assess the resistance of personal ballistic protection materials. To be validated and accepted
Bogdan Stirbu   +3 more
doaj   +1 more source

Low Frequency Anti-Interference Mechanism of Axial Stretching Fiber Laser Hydrophones

open access: yesPhotonics, 2022
For the axial stretching fiber laser hydrophone, a fiber laser is often exposed to flexural interference. A theoretical model for the flexural vibration of a fiber laser was therefore constructed in this paper to explore the low frequency anti ...
Wenzhang Song   +7 more
doaj   +1 more source

A study of lost military words and terms from dictionaries based on Adab-al-Harb va Al-shaja’ah (types of arrowheads and Maces) [PDF]

open access: yesنثرپژوهی ادب فارسی, 2022
Despite the writing of various dictionaries in the Persian language, there are still many Persian words that have been overlooked by lexicographers or some forms of them have not been recorded.
Hossein Aligholizadeh, Hamid Pooladi
doaj   +1 more source

Fecal microbiota transplantation: lights and shadows of a new weapon against inflammatory bowel disease [PDF]

open access: yes, 2023
Treatment of inflammatory bowel disease (IBD) remains one of the most critical public health issues, mostly due to its wide global prevalence and dramatic impact on patients’ quality of life.
Benedetta Simeoni   +6 more
core   +1 more source

Dirty hands as a ‘weapon of the weak’: ‘Heroism’, ‘aristocratism’, and the ambiguities of everyday resistance [PDF]

open access: yes, 2023
This article explores an insufficiently problematised aspect of conventional Dirty Hands (DH) analyses: the suggestion that such analyses are animated by a ‘heroic’ and ‘aristocratic’ flavour.
Tillyris, D.
core   +1 more source

Reliability Analysis and Optimization Method of a Mechanical System Based on the Response Surface Method and Sensitivity Analysis Method

open access: yesActuators, 2023
Mechanical system reliability analysis constitutes a primary research focus in the field of engineering. This study aims to address the issue of complex mechanical systems with intricate mechanisms and nonlinear reliability equations that are challenging
Lei Zhao   +3 more
doaj   +1 more source

Magnetic detection of underdriven USV track adaptive tracking in complex marine environment control algorithm research

open access: yesAIP Advances, 2023
In marine magnetic detection, in order to improve the accuracy of the measurement data of the field, to consider the impact of the storm interference environment, and to design a weakly driven USV tracking control system, it is necessary to drive the USV
Yi Li, Zhongle Liu, Wudi Wen
doaj   +1 more source

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