Results 31 to 40 of about 20,826 (139)

Nonlinear Step-Stress Accelerated Degradation Modeling and Remaining Useful Life Estimation Considering Multiple Sources of Variability

IEEE Access, 2019
In the absence of sufficient degradation data of long-lifetime and highly reliable products, a step-stress accelerated degradation model based on nonlinear diffusion process is proposed to estimate the remaining useful life (RUL), with the advantage of ...
Zhenan Pang, Changhua Hu, Xiaosheng Si, Jianxun Zhang, Dangbo Du, Hong Pei   +5 more
doaj   +1 more source

Atmosphere pollution modeling in the case of accident during rocket propellant transportation by trains [PDF]

MATEC Web of Conferences, 2019
At present time, in Ukraine the intensive development of solid-propellant missiles takes place. These missiles are called «Grim», «Grim-2», etc. Transportation of rocket propellant very often is carried out by trains.
Biliaiev Mykola, Biliaieva Viktoriia, Kozachyna Vitalii, Berlov Oleksandr, Gunko Olena, Chernyatyeva Kateryna   +5 more
doaj   +1 more source

Stressful Experiences in University Predict Non-suicidal Self-Injury Through Emotional Reactivity

Frontiers in Psychology, 2021
Theoretical perspectives on non-suicidal self-injury (NSSI; direct and deliberate self-injury without lethal intent such as self-cutting or hitting) have long underscored the affective regulating properties of NSSI.
Chloe A. Hamza, Abby L. Goldstein, Nancy L. Heath, Lexi Ewing   +3 more
doaj   +1 more source

A new class of semiparametric transformation models based on first hitting times by latent degradation processes

Stat, 2013
In many failure mechanisms, most subjects under study deteriorate physically over time, and thus a depreciation in health may precede failure. A latent stochastic process, called degradation process, may be assumed for modeling such depreciation whereby an event occurs when the process first crosses a threshold.
Choi, Sangbum, Doksum, Kjell A.
openaire   +2 more sources

An Adaptive Prognostic Approach for Newly Developed System With Three-Source Variability

IEEE Access, 2019
Remaining useful life (RUL) estimation is the key of prognostics and health management (PHM) technology and is an effective way to ensure the safe and reliable operation of equipment.
Xi Wang, Changhua Hu, Xiaosheng Si, Jianfei Zheng, Hong Pei, Yong Yu, Ziqiang Ren   +6 more
doaj   +1 more source

Automatic identification of optimal marker genes for phenotypic and taxonomic groups of microorganisms. [PDF]

PLoS ONE, 2018
Finding optimal markers for microorganisms important in the medical, agricultural, environmental or ecological fields is of great importance. Thousands of complete microbial genomes now available allow us, for the first time, to exhaustively identify ...
Elad Segev, Zohar Pasternak, Tom Ben Sasson, Edouard Jurkevitch, Mira Gonen   +4 more
doaj   +1 more source

The combined effect of Covid-19 and neighbourhood deprivation on two dimensions of subjective well-being: Empirical evidence from England.

PLoS ONE, 2021
ObjectivesThe Covid-19 pandemic is hitting societies hard, and people living in disadvantaged circumstances are among the most affected. We investigate the combined effects of the Covid-19 crisis and living in a deprived neighbourhood on two dimensions ...
Franco Bonomi Bezzo, Laura Silva, Maarten van Ham   +2 more
doaj   +1 more source

Running-Time Analysis of Brain Storm Optimization Based on Average Gain Model

Biomimetics
The brain storm optimization (BSO) algorithm has received increased attention in the field of evolutionary computation. While BSO has been applied in numerous industrial scenarios due to its effectiveness and accessibility, there are few theoretical ...
Guizhen Mai, Fangqing Liu, Yinghan Hong, Dingrong Liu, Junpeng Su, Xiaowei Yang, Han Huang   +6 more
doaj   +1 more source

A Nonlinear Prediction Method of Lithium-Ion Battery Remaining Useful Life Considering Recovery Phenomenon

International Journal of Electrochemical Science, 2020
Remaining useful life (RUL) prediction is the core of prognostic and health management (PHM). Lithium-ion battery is an important power source in the new energy field. Predicting its RUL accurately has great significance to the development of new energy.
Zhenyu Zhang, Zhen Peng, Yong Guan, Lifeng Wu   +3 more
doaj   +1 more source

The Mastcam‐Z Radiometric Calibration Targets on NASA's Perseverance Rover: Derived Irradiance Time‐Series, Dust Deposition, and Performance Over the First 350 Sols on Mars

Earth and Space Science, 2022
The Mastcam‐Z radiometric calibration targets mounted on the NASA's Perseverance rover proved to be effective in the calibration of Mastcam‐Z images to reflectance (I/F) over the first 350 sols on Mars.
M. Merusi, K. B. Kinch, M. B. Madsen, J. F. Bell III, J. N. Maki, A. G. Hayes, J. Joseph, J. R. Johnson, M. Rice, E. A. Cloutis, D. Applin, M. T. Lemmon, A. F. Vaughan, J. I. Núñez, E. Jensen, J. Z. Kristensen, K. Paris, E. Cisneros, M. R. Kennedy, O. Gasnault   +19 more
doaj   +1 more source