Weak Fault Signal Detection of Rotating Machinery Based on Multistable Stochastic Resonance and VMD-AMD by Dongying Han, Xiao Su, Peiming Shi

“…The processed signal is decomposed into intrinsic mode functions (IMF) by VMD, in order to require the detection of weak multifrequency signals. …”
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Gearbox Status Recognition based on TMD-SVD and POS-BP Networks Under Strong Interference by Lei He, Suqi Liu

“…Firstly， the vibration signals under four typical conditions of normal transmission， rolling failure， outer ring crack and gear wear are collected on a self-built experimental platform. Then， the first 5 IMFs components of the signal is decomposed by EMD， since the spectrum of IMF1 is still complicated， the wavelet packet is used to continue the 2-layer decomposition. …”
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FAULT DIAGNOSIS METHOD OF ROLLING BEARING BASED ON ICEEMD-FastICA by MA WeiPing, HONG KunYue, AN Ning, SONG YuZhou

“…This method utilized the kurtosis criterion to reconstruct the Intrinsic Mode Function (IMF) obtained from ICEEMD and combined it with Fast Independent Component Analysis (FastICA) for noise reduction and unmixing, significantly reducing the noise in the measured signals. …”
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Fault Diagnosis of Crane Gearbox based on Variational Mode Decomposition and PSO-SVM by Wubang Yang, Bingpeng Gao, Fei Chen, Xinghe Zhang, Weidong Ma

“…Firstly， VMD is used to decompose the vibration signal to obtain the intrinsic mode function（IMF） of different scales. The decomposed high frequency component is improved after wavelet de-noising and the low frequency component is reconstructed. …”
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A study on rolling bearing fault diagnosis using RIME-VMD by Zhenrong Ma, Ying Zhang

“…Next, the kurtosis values of each decomposed Intrinsic Mode Function (IMF) are calculated, and the component with the most prominent fault features is selected for noise reduction through reconstruction. …”
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KEY ASPECTS OF CORPORATE FINANCIAL SOUNDNESS by Y. D. Sotneva

“…In practice there is also no definitive understanding of financial soundness based on the analysis of financial information of Rosneft, Alrosa, and Tatneft.Compared Russian and foreign academic approach, government and international instructions of IMF, Ministry of Regional Development and Central Bank of Russia and stated the main characteristics of financial soundness, an author gives its definition.…”
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Exploring the value of digital twins for information management in highway asset maintenance by Mengtian Yin, Varun Kumar Reja, Ran Wei, Ioannis Brilakis, Brian Sheil, Federico Perrotta, Alix Marie d'Avigneau, Linjun Lu

“…A Digital Twin (DT)-based Information Management Framework (IMF) offers a promising solution based on a Foundation Data Model, Reference Data Libraries, and Integration Architecture. …”
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Cycle Analysis Method of Tree Ring and Solar Activity Based on Variational Mode Decomposition and Hilbert Transform by Guohui Li, Mengtao Zheng, Hong Yang

“…Firstly, the tree ring width of cypress during 1700 to 1955 beside the Huangdi Tomb and the long-term sunspot number during 1700 to 1955, respectively, are decomposed by VMD into a series of intrinsic mode functions (IMFs). Secondly, Hilbert transformation on the decomposed IMF component is performed. …”
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A two-step geospace storm as a new tool of opportunity for experimentally estimating the threshold condition for the formation of a substorm current wedge by L. F. Chernogor

“…The study, for the first time, convincingly attests to the two-step geospace storm to be the best possible solar–terrestrial event of opportunity for realizing a technique for estimating the IMF <span class="inline-formula"><i>B</i>_<i>z</i></span> component threshold for the formation of the substorm current wedge. …”
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THE PUBLIC DEBT OF UKRAINE: A NEW DIMENSION OF DYNAMICS AND ARCHITECTURE OF THE MODEL FRAMEWORK OF THE MANAGEMENT SYSTEM by Serhii Petrukha, Nina Petrukha, Roman Miakota

“…The study is based on the author's adjustment model for assessing debt dynamics, which is widely used by the IMF, taking into account national specificities. …”
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Instantaneous Amplitude-Frequency Feature Extraction for Rotor Fault Based on BEMD and Hilbert Transform by Chuanjin Huang, Haijun Song, Wenping Lei, Zhanya Niu, Yajun Meng

“…Then, the acquired vibration signal can be decomposed into several intrinsic mode functions (IMFs) at the rotational speed using the BEMD method. …”
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Gauge Deterioration Prediction of Urban Rail Transit Lines Based on CEEMD and SVR by JIA Qingtian, LIN Haijian, JIN Zhong

“…［Method］ CEEMD (complementary ensemble empirical mode decomposition) theory is introduced to extract the IMF (intrinsic mode function) of the geometric alignment of the track section. …”
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Fault Diagnosis of Train Axle Box Bearing Based on Multifeature Parameters by Xiaofeng Li, Limin Jia, Xin Yang

“…In the second part, five time-domain parameters, five IMF energy-torque features, and two amplitude-ratio features are extracted. …”
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Monthly Runoff Prediction Based on STL-CEEMDAN-LSTM Model by WANG Hai, SHEN Yanqing, QI Shansheng, PAN Hongzhong, HUO Jianzhen, WANG Zhance

“…The complete ensemble empirical mode decomposition with adaptive noise (CEEMDAN) algorithm was then applied to decompose the residual terms to obtain intrinsic mode functions (IMFs) of different frequency components. Finally, the trend term, seasonal term, and each modal component IMF were used as inputs for the long short term memory network (LSTM) for training and prediction. …”
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Analysis of Taxation of Property in Bosnia and Herzegovina by Lejla Lazović Pita, Amina Močević

“… The purpose of this paper is fill in the literature gap and to analyse taxation of property in Bosnia and Herzegovina (BIH). By using IMF and OECD methodology defined under taxes on property, our research tries to compare taxes on property in two BIH entities to the international practice. …”
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Chinese Funding: A Curse to Africa by Chido T Chipfakacha

“…In recent years the Chinese has overtaken the Briton hood Institutes of the International Monetary Fund (IMF) and World Bank as the major lenders of loans to African States.  …”
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A Bayesian Inference‐Based Empirical Model for Scintillation Indices for High‐Latitude by K. Meziane, A. Kashcheyev, P. T. Jayachandran, A. M. Hamza

“…The solar wind characteristics include the solar wind speed (VSW) and ram pressure (ρSW) as well as the Geocentric Solar Magnetospheric (GSM) By and the Bz components of the interplanetary magnetic field (IMF). Following a brief assessment on the independence of the variables (predictors), prior probabilities of occurrence in the case of a multinomial classification are constructed. …”
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KEY MACROECONOMIC DETERMINANTS OF GOVERNMENT DEBT – THE CASE OF NORTH MACEDONIA by Filip Taskovski

“…This research paper is based on secondary data from relevant sources such as the Ministry of Finance and the National Bank of the Republic of North Macedonia, the State Statistics Office and the IMF.  The multiple linear regression model was applied in the empirical part of the research, in which five variables are incorporated. …”
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The role of BRICS in establishing the balance of power in international relations by Proroković Dušan

“…The obvious goal is to create alternative financial institutions in opposition to the IMF, the World Bank and the WTO and to reduce the political influence of the USA and the collective West by dedollarizing the global economy. …”
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Ocena pozycji walut kluczowych międzynarodowego systemu walutowego w latach 1990 – 2016 i perspektywy zmian by Katarzyna Twarowska

“…Metodyka obejmuje badania teoretyczne (analityczne studia literatury naukowej i raportów badawczych) oraz badania empiryczne (analiza danych statystycznych BIS, IMF, SWIFT, EBC, UNCTAD). Przeprowadzona analiza pozwala na stwierdzenie, że główną walutą międzynarodową pozostaje dolar, a utworzenie obszaru wspólnej waluty w UE nie doprowadziło do oczekiwanych zmian pozycji głównych walut i uzyskania przez euro pozycji drugiej waluty globalnej, konkurującej skutecznie z dolarem w pełnieniu funkcji pieniądza światowego. …”
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