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1. STDM: A new two-stage degradation model for Remaining useful life prediction NSTL国家科技图书文献中心

Zhuotao Xu |  Zhijian Wang... -  《Mechanical Systems & Signal Processing》 - 2025,226(Mar.) - 112372.1~112372.12 - 共12页

摘要: point (SDP), an abrupt change in drift term rate |  degradation path. Additionally, existing change-point-based |  model (STDM), which addresses the abrupt change by | The two-stage degradation model is frequently |  used to describe the degradation path and is
关键词: Remaining useful life (RUL) prediction |  Degradation model |  health indicator (HI) |  Wiener process |  Stage division

2. Online change points detection for linear dynamical systems with finite sample guarantees NSTL国家科技图书文献中心

Xin, Lei |  Chiu, George T. -C.... -  《Automatica》 - 2025,171 - 共12页

摘要:The problem of online change point detection |  occur. Existing work on online change point detection |  points. In this work, we study the online change point |  for the probability of detecting a change point. Our |  is to detect abrupt changes in properties of time
关键词: Stochastic systems |  Change point detection

3. Structural changes in contagion channels: the impact of COVID-19 on the Italian electricity market NSTL国家科技图书文献中心

Daniel Felix Ahelegb... |  Roberto Casarin... -  《Annals of operations research》 - 2025,345(2/3) - 1035~1060 - 共26页

摘要:. The change-point specification allows for detecting |  the change-point methodology overlap the COVID-19 | : this appears as a crucial point, particularly during |  change points to a multiple-layer set-up. Multilayer |  pandemic period. The model captures relevant abrupt
关键词: C11 |  C15 |  C32 |  C52 |  G01 |  Q41

4. Efficient Change-Point Detection Over Fully Decentralized Wireless Networks With Low Communication Rate NSTL国家科技图书文献中心

Yuchen Jiao |  Linghang Meng... -  《IEEE Transactions on Vehicular Technology》 - 2025,74(1) - 1626~1642 - 共17页

摘要:Change-point detection (CPD), also known as |  quickest detection, aims to detect an abrupt change in |  unknown subset of sensors is affected by the abrupt |  change. In this paper, we propose a novel distributed |  the environment according to its observations as
关键词: Sensors |  Costs |  Sensor fusion |  Robustness |  Approximation algorithms |  Resilience |  Quantization (signal)

5. B-CAVE: A Robust Online Time Series Change Point Detection Algorithm Based on the Between-Class Average and Variance Evaluation Approach NSTL国家科技图书文献中心

Aditi Gupta |  Adeiza James Onumany...... -  《IEEE Transactions on Knowledge and Data Engineering》 - 2025,37(1) - 75~88 - 共14页

摘要:Change point detection (CPD) is a valuable | . Our B-CAVE algorithm features a unique change point |  the automatic detection of abrupt variations within |  technique in time series (TS) analysis, which allows for |  the TS. It is often useful in applications such as
关键词: Real-time systems |  Measurement |  Time series analysis |  Shape |  Jamming |  Training |  Performance evaluation |  Monitoring |  Market research |  Entropy

6. A modified multi-directional iterative mirroring method for SH waves propagation in rectangular sealed plate with a circular surface crack NSTL国家科技图书文献中心

Fan, Zhiyu |  Qi, Hui... -  《Applied mathematics letters》 - 2025,160 - 共7页

摘要: circular surface crack under anti-plane point source wave |  effects on dynamic stress concentration and abrupt |  displacement change. | This study proposes an exact analytical |  approach for investigating the steady-state and transient
关键词: Wave propagation |  Rectangular sealed plate |  Analytical approach |  Boundary conditions |  Modified multi-directional iterative mirroring |  method

7. Abrupt Changes in the Timing and Magnitude of the North Atlantic Bloom Over the 21st Century NSTL国家科技图书文献中心

Kelly, Stephen |  Popova, Ekaterina... -  《Journal of Geophysical Research,C.Oceans》 - 2025,130(3) - n/a~n/a - 共21页

摘要: change, this pattern is threatened by increasing water |  "tipping point" in the Earth system, and may "collapse |  concentrations are abrupt and more highly spatiotemporally |  change, which may affect food web dynamics. Defining |  essential for predicting abrupt and irreversible changes
关键词: North Atlantic Bloom |  subpolar gyre |  climate change |  abrupt change

8. Effect of Fe-doping on magnetic structures and "spin-lattice-charge" strong correlation properties in Mn3Sn1-xFexC compounds NSTL国家科技图书文献中心

Hu, Dongmei |  Shi, Kewen... -  《Journal of Alloys and Compounds》 - 2025,1010 - 177489~ - 共7页

摘要: magnetic phase transition point (TC) initially shifts to | -doping levels. This change is accompanied by the |  negative thermal expansion (NTE) behavior and the abrupt |  change of resistivity in Mn3SnC are also realized | The influences of Fe-doping on the magnetic
关键词: Magnetic structure |  Neutron powder diffraction |  Negative thermal expansion |  Electronic transport

9. Exploring the resilience of global vegetation ecosystem: Nonlinearity, driving forces, and management NSTL国家科技图书文献中心

Xuan Lv |  Guo Chen... -  《Journal of Environmental Management》 - 2025,377(Mar.) - 124634.1~124634.12 - 共12页

摘要: abrupt change and reversed to a decreased trend after |  the turning point of 2004, with a rate of - 3.17 |  disturbance of climate change to vegetation ecosystems. | Vegetation resilience, characterized by the |  ability of vegetation to maintain stable states, is
关键词: Vegetation resilience |  Abrupt change |  Contribution rates |  CO_2 concentration |  Compounding effects

10. A novel combining Raman-photoluminescence method to characterize the brittle and plastic states of fused silica based on nanoscale ring structures and atomic point defects NSTL国家科技图书文献中心

Yang, Dinghuai |  Zhang, Zixiao... -  《CERAMICS INTERNATIONAL》 - 2025,51(5) - 5845~5856 - 共12页

摘要: mixing zones. And the abrupt destruction of ring | , the change laws of the photoluminescence properties |  concentrations of the atomic point defects would sharply |  the atomic point defects with the BPS, the brittle | Fused silica has been widely used in many key
关键词: Fused silica |  Ring structure |  Plastic-to-brittle transition |  Raman spectrum |  Photoluminescence spectrum
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