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Artículos de revistas sobre el tema "Atomki anomaly"

Autor: Grafiati
Publicado: 22 de febrero de 2023

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1

Liu, Chang-Yong. "Investigating the Atomki anomaly in the framework of axial (ABJ) anomaly." Modern Physics Letters A 36, no. 12 (2021): 2150080. http://dx.doi.org/10.1142/s0217732321500802.

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An anomaly observed in the 8Be nuclear transition by the Atomki collaboration hints at a light, neutral boson decaying into an [Formula: see text] pair with a mass of about 17 MeV. In this paper, we study the Atomki anomaly in the framework of axial (ABJ) anomaly. Some theoretical results indicate that the X17 particle is the color singlet pseudoscalar. We take the X17 particle as a pseudoscalar meson [Formula: see text] system which has the axial (ABJ) anomaly, where [Formula: see text] denotes the up quark. Besides this, we also give an interpretation for E38 particle with a mass of about 38
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2

Yamamoto, Yasuhiro. "Atomki anomaly and the Secluded Dark Sector." EPJ Web of Conferences 168 (2018): 06007. http://dx.doi.org/10.1051/epjconf/201816806007.

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The Atomiki anomaly can be interpreted as a new light vector boson. If such a new particle exists, it could be a mediator between the Standard Model sector and the dark sector including the dark matter. We discussed some simple effective models with these particles. In the models, the secluded dark matter models are good candidates to satisfy the thermal relic abundance. In particular, we found that the dark matter self-interaction can be large enough to solve the small scale structure puzzles if the dark matter is a fermion.
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3

Zhang, Xilin, and Gerald A. Miller. "Can a protophobic vector boson explain the ATOMKI anomaly?" Physics Letters B 813 (February 2021): 136061. http://dx.doi.org/10.1016/j.physletb.2021.136061.

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4

Bordes, José, Hong-Mo Chan, and Sheung Tsun Tsou. "Accommodating three low-scale anomalies (g − 2, Lamb shift, and Atomki) in the framed Standard Model." International Journal of Modern Physics A 34, no. 25 (2019): 1950140. http://dx.doi.org/10.1142/s0217751x19501409.

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The framed Standard Model (FSM) predicts a [Formula: see text] boson with mass around 20 MeV in the “hidden sector,” which mixes at tree level with the standard Higgs [Formula: see text] and hence acquires small couplings to quarks and leptons which can be calculated in the FSM apart from the mixing parameter [Formula: see text]. The exchange of this mixed state [Formula: see text] will contribute to [Formula: see text] and to the Lamb shift. By adjusting [Formula: see text] alone, it is found that the FSM can satisfy all present experimental bounds on the [Formula: see text] and Lamb shift an
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5

Suzuki, Tohru. "Bandgap Anomaly, Atomic Ordering, and Their Applications." MRS Bulletin 22, no. 7 (1997): 33–37. http://dx.doi.org/10.1557/s0883769400033388.

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In 1916 a group of Russian chemists—Kurnakov and his colleagues—discovered that slowly cooled CuxAu1 − xmetal alloys had anomalously low electrical resistivities at simple compositions of CuAu and Cu3Au. Nine years later in 1925, Swedish physicists Johansson and Linde found by x-ray-diffraction experiments that the alloys had ordered structures on the face-centered-cubic lattice, now called CuAu I-type and AuCu3-type. Two years later, Johansson and Linde discovered CuPt-type ordering in Cu0.5Pt0.5 alloy by noticing a similar anomaly in their electrical-resistivity measurements for CuxPt1 − x.
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6

Giusti, Leonardo, and Alessandro Strumia. "Atomic parity violation and the HERA anomaly." Physics Letters B 410, no. 2-4 (1997): 229–32. http://dx.doi.org/10.1016/s0370-2693(97)00982-9.

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7

Persson, J. R. "Table of hyperfine anomaly in atomic systems." Atomic Data and Nuclear Data Tables 99, no. 1 (2013): 62–68. http://dx.doi.org/10.1016/j.adt.2012.04.002.

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8

Ouyang Haoyi, 欧阳浩艺, 陈婉钧 Chen Wanjun, 李海 Li Hai та 杨初平 Yang Chuping. "平整表面反射率异常的单像素检测理论". Laser & Optoelectronics Progress 58, № 12 (2021): 1212003. http://dx.doi.org/10.3788/lop202158.1212003.

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9

Tran Tan, Hoang Bao, and Andrei Derevianko. "Implications of W-Boson Mass Anomaly for Atomic Parity Violation." Atoms 10, no. 4 (2022): 149. http://dx.doi.org/10.3390/atoms10040149.

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We consider the implications of the recent measurement of the W-boson mass MW=80,433.5±9.4MeV/c2 for atomic parity violation experiments. We show that the change in MW shifts the Standard Model prediction for the 133Cs nuclear weak charge to QW(133Cs)=−73.11(1), i.e., by 8.5σ from its current value, and the proton weak charge by 2.7%. The shift in QW(133Cs) ameliorates the tension between existing determinations of its value and motivates more accurate atomic theory calculations, while the shift in QW(p) inspires next-generation atomic parity violation experiments with hydrogen. Using our revi
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10

Smirnova, Daria A., Pramod Padmanabhan, and Daniel Leykam. "Parity anomaly laser." Optics Letters 44, no. 5 (2019): 1120. http://dx.doi.org/10.1364/ol.44.001120.

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11

Liu Yang, 刘洋, 侯春萍 Hou Chunping, 葛棒棒 Ge Bangbang, 王致芃 Wang Zhipeng та 彭程 Peng Cheng. "基于离散-连续特征耦合的图像异常检测算法". Laser & Optoelectronics Progress 59, № 8 (2022): 0815009. http://dx.doi.org/10.3788/lop202259.0815009.

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12

JACKIW, ROMAN W. "AXIAL ANOMALY." International Journal of Modern Physics A 25, no. 04 (2010): 659–67. http://dx.doi.org/10.1142/s0217751x10048391.

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13

Wu Qi, 吴琪, 樊彦国 Fan Yanguo, 樊博文 Fan Bowen та 禹定峰 Yu Dingfeng. "基于图正则化低秩协同表示的高光谱异常检测". Laser & Optoelectronics Progress 59, № 12 (2022): 1228003. http://dx.doi.org/10.3788/lop202259.1228003.

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14

Wilhelm, K., and B. N. Dwivedi. "An explanation of the Pioneer anomaly involving accelerated atomic clocks." Astrophysics and Space Sciences Transactions 7, no. 4 (2011): 487–94. http://dx.doi.org/10.5194/astra-7-487-2011.

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15

FILLIPPI, M., N. L. SAINI, H. OYANAGI, and A. BIANCONI. "SIGNATURE OF LOCAL STRUCTURE ANOMALY AT Tc IN THE Nb3Ge SUPERCONDUCTOR." International Journal of Modern Physics B 16, no. 11n12 (2002): 1713–19. http://dx.doi.org/10.1142/s0217979202011305.

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We report local structure of Nb3Ge intermetallic superconductor by Ge K-edge extended X-ray absorption fine structure (EXAFS) measurements performed in the temperature range of 6–300 K, with an emphasis to determine the local and instantaneous atomic displacements across the superconducting transition temperature T c . We find that the temperature dependent correlated Debye–Waller factor of the Ge-Nb bonds shows a drop at the T c while cooling the sample, similar to the one observed in the high-T c cuprate superconductors. The results provide a clear indication of an intimacy between the local
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16

Rañada, Antonio F., and A. Tiemblo. "Parametric invariance and the Pioneer anomaly." Canadian Journal of Physics 90, no. 10 (2012): 931–37. http://dx.doi.org/10.1139/p2012-086.

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It is usually assumed that the t parameter in the equations of dynamics can be identified with the indication of the pointer of a clock. Things are not so simple, however. In fact, because the equations of motion can be written in terms of t but also in terms of t′ = f(t), f being any well-behaved function, any one of those infinite parametric times t′ is as good as the newtonian one to study classical dynamics in hamiltonian form. Here we show that, as a consequence of parametric invariance, one of the foundations of classical dynamics, the relation between the mathematical parametric time t
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17

Yang Xianbin, 杨先斌, 党建武 Dang Jianwu, 王松 Wang Song та 王阳萍 Wang Yangping. "基于双流网络与多示例学习的异常事件检测". Laser & Optoelectronics Progress 58, № 20 (2021): 2015006. http://dx.doi.org/10.3788/lop202158.2015006.

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18

Seeger, Alfred. "Ordering processes and atomic defects in FeCo." International Journal of Materials Research 97, no. 7 (2006): 861–71. http://dx.doi.org/10.1515/ijmr-2006-0140.

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Abstract The present knowledge on self-diffusion and lattice vacancies in near-stoichiometric body-centred cubic FeCo alloys is critically reviewed and related to the establishment of structural order in the alloy after quenching from elevated temperatures. The available data may be consistently explained in terms of the so-called six-jump cycle mechanism of Huntington, Elcock and McCormick, plus the additional concept of ‘pseudo-selfdiffusivity’. It is shown that this leads to an understanding of the observed combinations of high activation enthalpy and large pre-exponential factor in the Fe
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19

Gangrskiĭ, Yu P., S. G. Zemlyanoi, D. V. Karaivanov, et al. "Hyperfine magnetic anomaly in the atomic spectra of rare-earth elements." Optics and Spectroscopy 92, no. 5 (2002): 658–63. http://dx.doi.org/10.1134/1.1481127.

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20

Ko, Hoon, Kwangcheol Rim, and Isabel Praça. "Influence of Features on Accuracy of Anomaly Detection for an Energy Trading System." Sensors 21, no. 12 (2021): 4237. http://dx.doi.org/10.3390/s21124237.

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The biggest problem with conventional anomaly signal detection using features was that it was difficult to use it in real time and it requires processing of network signals. Furthermore, analyzing network signals in real-time required vast amounts of processing for each signal, as each protocol contained various pieces of information. This paper suggests anomaly detection by analyzing the relationship among each feature to the anomaly detection model. The model analyzes the anomaly of network signals based on anomaly feature detection. The selected feature for anomaly detection does not requir
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21

Liu Yunpeng, 刘云朋, 霍晓丽 Huo Xiaoli та 刘智超 Liu Zhichao. "基于贝叶斯分区数据挖掘的光纤网络异常分析算法". Infrared and Laser Engineering 50, № 8 (2021): 20210121. http://dx.doi.org/10.3788/irla20210121.

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22

Li Fangli, 李芳丽. "监控视频中采用深度支持向量数据描述的异常检测". Infrared and Laser Engineering 50, № 9 (2021): 20210094. http://dx.doi.org/10.3788/irla20210094.

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23

Shah, Nehad Ali. "A Comparison Study of Irregularity Descriptors of Benzene Ring Embedded in P-Type Surface Network and Its Derived Network." Journal of Mathematics 2021 (March 4, 2021): 1–12. http://dx.doi.org/10.1155/2021/8868549.

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Topological indices are atomic auxiliary descriptors which computationally and hypothetically portray the natures of the basic availability of nanomaterials and chemical mixes, and henceforth, they give faster techniques to look at their exercises and properties. Anomaly indices are for the most part used to describe the topological structures of unpredictable graphs. Graph anomaly examines are helpful not only for quantitative structure-activity relationship (QSAR) and also quantitative structure-property relationship (QSPR) but also for foreseeing their different physical and compound proper
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24

IOFFE, B. L. "AXIAL ANOMALY: THE MODERN STATUS." International Journal of Modern Physics A 21, no. 31 (2006): 6249–66. http://dx.doi.org/10.1142/s0217751x06035051.

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The modern status of the problem of axial anomaly in QED and QCD is reviewed. Two methods of the derivation of the axial anomaly are presented: (1) by splitting of coordinates in the expression for the axial current and (2) by calculation of triangle diagrams, where the anomaly arises from the surface terms in momentum space. It is demonstrated, that the equivalent formulation of the anomaly can be given, as a sum rule for the structure function in dispersion representation of three point function of AVV interaction. It is argued, that such integral representation of the anomaly has some advan
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25

Jakob, Peter, Manav Madan, Tobias Schmid-Schirling, and Abhinav Valada. "Multi-Perspective Anomaly Detection." Sensors 21, no. 16 (2021): 5311. http://dx.doi.org/10.3390/s21165311.

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Anomaly detection is a critical problem in the manufacturing industry. In many applications, images of objects to be analyzed are captured from multiple perspectives which can be exploited to improve the robustness of anomaly detection. In this work, we build upon the deep support vector data description algorithm and address multi-perspective anomaly detection using three different fusion techniques, i.e., early fusion, late fusion, and late fusion with multiple decoders. We employ different augmentation techniques with a denoising process to deal with scarce one-class data, which further imp
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26

SARKAR, UTPAL. "ANOMALY FOR MODEL BUILDING." International Journal of Modern Physics A 22, no. 05 (2007): 931–36. http://dx.doi.org/10.1142/s0217751x07034969.

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A simple algorithm to calculate the group theory factor entering in anomalies at four and six dimensions for SU (N) and SO (N) groups in terms of the Casimir invariants of their subgroups is presented. Explicit examples of some of the lower dimensional representations of SU (n), n ≤ 5 and SO (10) groups are presented, which could be used for model building in four and six dimensions.
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27

DeMedeiros, Kyle, Abdeltawab Hendawi, and Marco Alvarez. "A Survey of AI-Based Anomaly Detection in IoT and Sensor Networks." Sensors 23, no. 3 (2023): 1352. http://dx.doi.org/10.3390/s23031352.

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Machine learning (ML) and deep learning (DL), in particular, are common tools for anomaly detection (AD). With the rapid increase in the number of Internet-connected devices, the growing desire for Internet of Things (IoT) devices in the home, on our person, and in our vehicles, and the transition to smart infrastructure and the Industrial IoT (IIoT), anomaly detection in these devices is critical. This paper is a survey of anomaly detection in sensor networks/the IoT. This paper defines what an anomaly is and surveys multiple sources based on those definitions. The goal of this survey was to
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28

Adamu, A., and A. L. Ahmed. "Investigations on radioelements occurrences in rocks in Kakuri Area of Kaduna North West, Nigeria." Global Journal of Pure and Applied Sciences 25, no. 2 (2019): 167–74. http://dx.doi.org/10.4314/gjpas.v25i2.6.

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Detailed investigations on Radioelements occurrences in rocks in Kakuri Area Kaduna North West Nigeria were carried out in this work using Geochemical ground follow-up methods. The methods employed include Atomic Absorption Spectrometric (AAS) and Assay of rock samples from the area. Fresh rock samples were collected with hammer and identified as follows: Granite gneiss, Granite, Migmatites and Gneiss. Analysis was made on the powdered rock samples and histograms were plotted to determine the activity of Radioelement concentrations: Potassium, Thorium and Uranium in each of the samples analyze
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29

Song, Huijie, Shaowu Dong, Wenjun Wu, Meng Jiang, and Weixiong Wang. "Detecting an atomic clock frequency anomaly using an adaptive Kalman filter algorithm." Metrologia 55, no. 3 (2018): 350–59. http://dx.doi.org/10.1088/1681-7575/aab66d.

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30

Feng, Lei, and Guotong Li. "Research on Self-Monitoring Method for Anomalies of Satellite Atomic Clock." International Journal of Aerospace Engineering 2016 (2016): 1–16. http://dx.doi.org/10.1155/2016/1759512.

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Atomic clock is the core component of navigation satellite payload, playing a decisive role in the realization of positioning function. So the monitoring for anomalies of the satellite atomic clock is very important. In this paper, a complete autonomous monitoring method for the satellite clock is put forward, which is, respectively, based on Phase-Locked Loop (PLL) and statistical principle. Our methods focus on anomalies in satellite clock such as phase and frequency jumping, instantaneous deterioration, stability deterioration, and frequency drift-rate anomaly. Now, method based on PLL has
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31

Kanaev, Andrey V., and Jeremy Murray-Krezan. "Spectral anomaly detection in deep shadows." Applied Optics 49, no. 9 (2010): 1614. http://dx.doi.org/10.1364/ao.49.001614.

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32

Shapoval, D. V., and I. V. Simenog. "Threshold anomaly in doubletn-d scattering." Few-Body Systems 8, no. 4 (1990): 145–58. http://dx.doi.org/10.1007/bf01081827.

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33

Kim, Donghyun, Gian Antariksa, Melia Putri Handayani, Sangbong Lee, and Jihwan Lee. "Explainable Anomaly Detection Framework for Maritime Main Engine Sensor Data." Sensors 21, no. 15 (2021): 5200. http://dx.doi.org/10.3390/s21155200.

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In this study, we proposed a data-driven approach to the condition monitoring of the marine engine. Although several unsupervised methods in the maritime industry have existed, the common limitation was the interpretation of the anomaly; they do not explain why the model classifies specific data instances as an anomaly. This study combines explainable AI techniques with anomaly detection algorithm to overcome the limitation above. As an explainable AI method, this study adopts Shapley Additive exPlanations (SHAP), which is theoretically solid and compatible with any kind of machine learning al
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34

Bonneville, Joël, Dimitri Charrier, and Christophe Coupeau. "Contribution of AFM Observations to the Understanding of Ni3Al Yield Stress Anomaly." Applied Mechanics and Materials 61 (June 2011): 71–77. http://dx.doi.org/10.4028/www.scientific.net/amm.61.71.

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We report in the present paper a practical situation where the use of atomic force microscopy allowed an irrefutable insight in material plasticity for discriminating between different modelling hypotheses concerning the yield stress anomaly of Ni3Al intermetallic compounds with the L12 ordered structure. The contribution of AFM to a better understanding of elementary rate controlling mechanisms as well as collective dislocation motions is highlighted.
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35

Kim, Donghyun, Sangbong Lee, and Jihwan Lee. "An Ensemble-Based Approach to Anomaly Detection in Marine Engine Sensor Streams for Efficient Condition Monitoring and Analysis." Sensors 20, no. 24 (2020): 7285. http://dx.doi.org/10.3390/s20247285.

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This study proposes an unsupervised anomaly detection method using sensor streams from the marine engine to detect the anomalous system behavior, which may be a possible sign of system failure. Previous works on marine engine anomaly detection proposed a clustering-based or statistical control chart-based approach that is unstable according to the choice of hyperparameters, or cannot fit well to the high-dimensional dataset. As a remedy to this limitation, this study adopts an ensemble-based approach to anomaly detection. The idea is to train several anomaly detectors with varying hyperparamet
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36

ARDALAN, F., H. ARFAEI, and N. SADOOGHI. "ON THE ANOMALIES AND SCHWINGER TERMS IN NONCOMMUTATIVE GAUGE THEORIES." International Journal of Modern Physics A 21, no. 19n20 (2006): 4161–83. http://dx.doi.org/10.1142/s0217751x06031363.

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Invariant (nonplanar) anomaly of noncommutative QED is reexamined in this paper. It is found that just as in ordinary gauge theory UV regularization is needed to discover anomalies, in noncommutative case, in addition, an IR regularization is also required to exhibit the existence of invariant anomaly. Thus resolving the controversy in the value of invariant anomaly, an expression for the unintegrated anomaly is found. Schwinger terms of the current algebra of the theory are derived.
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37

Wang, Wenzheng, Baojun Zhao, Fan Feng, Jinghong Nan, and Cheng Li. "Hierarchical Sub-Pixel Anomaly Detection Framework for Hyperspectral Imagery." Sensors 18, no. 11 (2018): 3662. http://dx.doi.org/10.3390/s18113662.

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Anomaly detection is an important task in hyperspectral processing. Some previous works, based on statistical information, focus on Reed-Xiaoli (RX), as it is one of the most classical and commonly used methods. However, its performance tends to be affected when anomaly target size is smaller than spatial resolution. Those sub-pixel anomaly target spectra are usually much similar with background spectra, and may results in false alarm for traditional RX method. To address this issue, this paper proposes a hierarchical RX (H-RX) anomaly detection framework to enhance the performance. The propos
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38

Adhikari, Rajdeep, Soma Adhikari, Bogdan Faina, et al. "Positive Magnetoresistance and Chiral Anomaly in Exfoliated Type-II Weyl Semimetal Td-WTe2." Nanomaterials 11, no. 10 (2021): 2755. http://dx.doi.org/10.3390/nano11102755.

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Layered van der Waals semimetallic Td-WTe2, exhibiting intriguing properties which include non-saturating extreme positive magnetoresistance (MR) and tunable chiral anomaly, has emerged as a model topological type-II Weyl semimetal system. Here, ∼45 nm thick mechanically exfoliated flakes of Td-WTe2 are studied via atomic force microscopy, Raman spectroscopy, low-T/high-μ0H magnetotransport measurements and optical reflectivity. The contribution of anisotropy of the Fermi liquid state to the origin of the large positive transverse MR⊥ and the signature of chiral anomaly of the type-II Weyl Fer
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39

Salam, Abdus, and E. Sezgin. "Anomaly Freedom in Chiral Supergravities." Physica Scripta 32, no. 4 (1985): 283–85. http://dx.doi.org/10.1088/0031-8949/32/4/007.

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40

Gu, Xuemei, and Mario Krenn. "Phase anomaly brings quantum implications." Nature Photonics 16, no. 12 (2022): 815–17. http://dx.doi.org/10.1038/s41566-022-01118-4.

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41

MA, YONG-LIANG, and YUE-LIANG WU. "ANOMALY AND ANOMALY-FREE TREATMENT OF QFT's BASED ON SYMMETRY-PRESERVING LOOP REGULARIZATION." International Journal of Modern Physics A 21, no. 31 (2006): 6383–456. http://dx.doi.org/10.1142/s0217751x0603309x.

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The triangle anomaly in massless and massive QED is investigated by adopting the symmetry-preserving loop regularization method proposed recently in Refs. 1 and 2. The method is realized in the initial dimension of theory without modifying the original Lagrangian, it preserves symmetries under non-Abelian gauge and Poincaré transformations in spite of the existence of two intrinsic mass scales Mc and μs which actually play the roles of UV- and IR-cutoff respectively. The axial-vector–vector-vector (AVV) triangle diagrams in massless and massive QED are evaluated explicitly by using the loop re
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42

Ho, Pei-Chun, Ian P. Bindloss, and John M. Goodkind. "A new anomaly in solid4He." Journal of Low Temperature Physics 109, no. 3-4 (1997): 409–21. http://dx.doi.org/10.1007/bf02396904.

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43

Kallel, Imen, Hamadi Khemakhem, Zina Sassi, Najmeddine Abdelmoula, El-Kebir Hlil, and Nirina Randrianantoandro. "The origin of the large magnetoelectric coupling in the ceramic Ba0.1Bi0.9(Ti0.9Zr0.1)0.1Fe0.9O3." Journal of Physics D: Applied Physics 55, no. 6 (2021): 065303. http://dx.doi.org/10.1088/1361-6463/ac2c3a.

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Abstract 57Fe Mössbauer spectrometry and x-ray powder diffraction are conducted to examine the structure and the local magnetic order at the level of Fe sites of Ba0.1Bi0.9(Ti0.9Zr0.1)0.1Fe0.9O3 ceramic. The Mössbauer spectra in the temperature range of 77 K–623 K were analyzed using a discrete distribution of hyperfine field, indicating that the Néel temperature T N was about 603 K. The ceramic Ba0.1Bi0.9(Ti0.9Zr0.1)0.1Fe0.9O3 remains stable in the rhombohedral structure (R3c) in the temperature range of 300 K–800 K. The anomaly of volume below T N, as detected from the model Debye–Gruneissen
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44

Abrahams, S. C., J. Ravez, A. Simon, A. Reller, and H. R. Oswald. "Cu(OH)2: a New Ferroelectric." Journal of Applied Crystallography 28, no. 5 (1995): 594–98. http://dx.doi.org/10.1107/s0021889895004766.

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The crystal structure of Cu(OH)2, recently redetermined at room temperature by Oswald, Reller, Schmalle & Dubler [Acta Cryst. (1990), C46, 2279–2284], is shown to satisfy the structural criteria for ferroelectricity. The Cu2+ ion at 295 K is displaced 0.131 Å from the most likely paraelectric atomic arrangement, allowing the prediction to be made that the ferroelectric Curie temperature is Tc = 343 K. This prediction is in excellent agreement with an earlier report of a reversible structural transition at 325–335 K in Cu(OH)2. The presence of a λ-shaped anomaly in the heat capacity at abou
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45

Yan, Ran, Junliang Liu, Jianfeng Wu, Chao Xu, and Yonghui Hu. "The weak frequency anomaly detection method of atomic clocks based on Kalman filter and extrapolation-accumulation." Measurement and Control 54, no. 5-6 (2021): 565–75. http://dx.doi.org/10.1177/00202940211000073.

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A new method based on the innovation of Kalman filter and extrapolation-accumulation is proposed to detect weak frequency anomalies in atomic clocks with short detection time and high detection probability. In this method, the detection statistics of the innovation extrapolation method in several epochs are accumulated. It avoids the influence of outliers, increases the noncentrality parameter of chi-square distribution, and realizes more effective detection of weak frequency anomalies. The simulation results show that compared with the innovation method and the innovation extrapolation method
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46

ABE, MITSUO, and NOBORU NAKANISHI. "D = 26 AND EXACT SOLUTION TO THE CONFORMAL-GAUGE TWO-DIMENSIONAL QUANTUM GRAVITY." International Journal of Modern Physics A 14, no. 04 (1999): 521–36. http://dx.doi.org/10.1142/s0217751x99000269.

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The conformal-gauge two-dimensional quantum gravity is formulated in the framework of the BRS quantization and solved completely in the Heisenberg picture: all n-point Wightman functions are explicitly obtained. The field-equation anomaly is shown to exist as in other gauges, but there is no other subtlety. At the critical dimension D = 26 of the bosonic string, the field-equation anomaly is shown to be absent. However, this result is not equivalent to the statement that the conformal anomaly is proportional to D - 26. The existence of the FP-ghost number current anomaly is seen to be an illus
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47

Monakhov, Vladimir, Vajira Thambawita, Pål Halvorsen, and Michael A. Riegler. "GridHTM: Grid-Based Hierarchical Temporal Memory for Anomaly Detection in Videos." Sensors 23, no. 4 (2023): 2087. http://dx.doi.org/10.3390/s23042087.

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The interest in video anomaly detection systems that can detect different types of anomalies, such as violent behaviours in surveillance videos, has gained traction in recent years. The current approaches employ deep learning to perform anomaly detection in videos, but this approach has multiple problems. For example, deep learning in general has issues with noise, concept drift, explainability, and training data volumes. Additionally, anomaly detection in itself is a complex task and faces challenges such as unknownness, heterogeneity, and class imbalance. Anomaly detection using deep learnin
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48

Ding, Nan, Haoxuan Ma, Chuanguo Zhao, Yanhua Ma, and Hongwei Ge. "Data Anomaly Detection for Internet of Vehicles Based on Traffic Cellular Automata and Driving Style." Sensors 19, no. 22 (2019): 4926. http://dx.doi.org/10.3390/s19224926.

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The data validity of safe driving in the Internet of Vehicles (IoV) is the basis of improving the safety of vehicles. Different from a traditional information systems, the data anomaly analysis of vehicle safety driving faces the diversity of data anomaly and the randomness and subjectivity of the driver’s driving behavior. How to combine the characteristics of the IOV data with the driving style analysis to provide effective real-time anomaly data detection has become an important issue in the IOV applications. This paper aims at the critical safety data analysis, considering the large comput
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49

Bonneville, Joël, and Christophe Coupeau. "Quantitative atomic force microscopy analysis of slip traces in Ni3Al yield stress anomaly." Materials Science and Engineering: A 483-484 (June 2008): 87–90. http://dx.doi.org/10.1016/j.msea.2006.12.158.

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50

Xiao, Bo, Ya Liu, Yanrong Xue, and Xiaohui Li. "A Study on Autonomous Integrity Monitoring of Multiple Atomic Clocks." Measurement Science Review 22, no. 5 (2022): 202–7. http://dx.doi.org/10.2478/msr-2022-0025.

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Abstract A stable and reliable time keeping system depends on the integrity monitoring of the atomic frequency standard. This paper reports a scheme for autonomous integrity monitoring of multiple atomic clocks, which combines the frequency standard comparison method and the frequency jump detection method. The frequency standard comparison method uses multi-channel synchronous acquisition technology and digital frequency measurement technology to realize the precise measurement of multiple atomic frequency standards. The frequency jump detection method uses adaptive filtering to predict the r
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