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Reliability Evaluation Based on Mathematical Degradation Model for Vacuum Packaged MEMS Sensor [PDF]

open access: yesMicromachines, 2022
Vacuum packaging is used extensively in MEMS sensors for improving performance. However, the vacuum in the MEMS chamber gradually degenerates over time, which adversely affects the long-term performance of the MEMS sensor. A mathematical model for vacuum
Guizhen Du   +4 more
doaj   +2 more sources

Popular science and education of cosmetic surgery in China: Quality and reliability evaluation of Douyin short videos [PDF]

open access: yesHealth Expectations, 2023
Background Douyin APP is the short video APP with the largest number of users in China. Objective This study aimed to evaluate the quality and reliability of short videos about cosmetic surgery on Douyin. Methods In August 2022, we retrieved and screened
Jianfei Zhang   +5 more
doaj   +2 more sources

Reliability Evaluation for Continuous-Wave Functional Near-Infrared Spectroscopy Systems: Comprehensive Testing from Bench Characterization to Human Test [PDF]

open access: yesSensors
In recent years, biomedical optics technology has developed rapidly. The current widespread use of biomedical optics was made possible by the invention of optical instruments.
Chenyang Gao   +4 more
doaj   +2 more sources

Microstructure evolution and deformation mechanism of a [111]-oriented nickel-based single-crystal superalloy during high-temperature creep

open access: yesJournal of Materials Research and Technology, 2022
Through creep measurement and microstructure observation, the microstructure evolution and deformation mechanism of a [111]-oriented nickel-based single-crystal superalloy at 980 °C/186 MPa were studied.
Guangyan Wang   +5 more
doaj   +1 more source

High-Temperature Creep Behavior of a Nickel-Based Single-Crystal Superalloy with Small-Angle Deviation from [111] Orientation

open access: yesAdvances in Materials Science and Engineering, 2022
By means of tensile creep tests and microstructure analysis, the creep behavior and deformation mechanism of a nickel-based single-crystal alloy with small-angle deviations from the [111] orientation at 1040°C/137 MPa were investigated.
Guangyan Wang   +6 more
doaj   +1 more source

An Optimization Method of Flexible Manufacturing System Reliability Allocation Based on Two Dimension-Reduction Strategies

open access: yesMachines, 2023
As increasingly extensive applications of flexible manufacturing systems (FMSs) arise, their reliability allocation has been a research hot spot. But, since FMSs are always composed of transfer and buffer devices, production machines, and complex control
Jingjing Xu   +5 more
doaj   +1 more source

Reliability Evaluation of Multi-Energy Generation and Transmission System With Offshore Wind Power-Photovoltaic-Energy Storage

open access: yes发电技术, 2022
The wind-solar-load correlation model is the basis for accurately evaluating the reliability of offshore wind power-photovoltaic-energy storage grid connected system. To solve the problem of high-dimensional wind-solar-load correlation modeling, a hybrid
GAO Xiaotong, QIN Zhilong, GAO Xinyu
doaj   +1 more source

Statistical Study of Degradation of Flexible Poly-Si TFTs Under Dynamic Bending Stress

open access: yesIEEE Journal of the Electron Devices Society, 2022
Degradation of flexible low-temperature poly-Si thin film transistors (TFTs) under dynamic bending cycles is investigated with statistical method. $I_{\mathrm{ ON}}$ degradation data of different bending cycles and bending conditions are compared to ...
Bin Li   +6 more
doaj   +1 more source

Reliability Evaluation of Wind Power Converter Under Fault-tolerant Control Scheme with Quantification of Temperature and Humidity Effects

open access: yesJournal of Modern Power Systems and Clean Energy, 2023
Wind power converter (WPC) is a key part of a wind power unit which delivers electric energy to power grid. Because of a large number of semiconductors, WPC has a high failure rate.
Xueying Yu   +6 more
doaj   +1 more source

Network Attack Detection Method of the Cyber-Physical Power System Based on Ensemble Learning

open access: yesApplied Sciences, 2022
With the rapid development of power grid informatization, the power system has evolved into a multi-dimensional heterogeneous complex system with high cyber-physical integration, denoting the Cyber-Physical Power System (CPPS).
Jie Cao   +5 more
doaj   +1 more source

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