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Destructive Earthquakes Are Predictable——The Physical Model of Earthquake Gestation and the Signal of Impending Quake

Sun Wei

Strategic Study of CAE 2007, Volume 9, Issue 7,   Pages 7-17

Abstract:

What is discussed here is that the earthquake precursor have their own

Keywords： destructive earthquake     quake-breeding physical model     signals before an earthquake     earthquake precursor    

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Early T-cell precursor leukemia: a subtype of high risk childhood acute lymphoblastic leukemia

Meilin Ma, Xiang Wang, Jingyan Tang, Huiliang Xue, Jing Chen, Ci Pan, Hua Jiang, Shuhong Shen

Frontiers of Medicine 2012, Volume 6, Issue 4,   Pages 416-420 doi: 10.1007/s11684-012-0224-4

Abstract: development in recent years has found a subgroup of patients with a phenotype that resembles early T-cell precursorThis novel subtype of T-ALL was called early T-cell precursor acute lymphoblastic leukemia (ETP-ALL).Our findings demonstrate that early T-cell precursor leukemia is a very high-risk subtype of acute lymphoblastic

Keywords： acute lymphoblastic leukemia     early T precursor     prognosis    

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Characteristics of metal magnetic memory signals of different steels under static tension

Yiliang ZHANG, Ruibin GOU, Jimin LI, Gongtian SHEN,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 2,   Pages 226-232 doi: 10.1007/s11465-010-0012-2

Abstract: To study the characteristics of metal magnetic memory (MMM) signals of different steels during tensileDuring the various deformation periods, MMM signals are tested, and micrometallographic is observed.statistical methods to study the macro and micro corresponding relationships and difference among magnetic signalslocation; there is a direct relationship between the intragranular slip and the changes of magnetic signals

Keywords： metal magnetic memory (MMM)     magnetic intensity (Hp)     static tension     weld    

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The role of natriuretic peptide precursor A gene polymorphism in the development of coronary heart disease

Ripen NSENGA MD, Longxian CHENG PhD, Mei’an HE PhD, Tangchun WU PhD,

Frontiers of Medicine 2009, Volume 3, Issue 4,   Pages 437-442 doi: 10.1007/s11684-009-0074-x

Abstract: Natriuretic peptide precursor A (NPPA) is synthesized, stored, and released by atrial myocytes.

Keywords： natriuretic peptide precursor A     coronary heart disease     gene polymorphism     allelic discrimination     polymorphism    

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Carbon-coated lithium titanate: effect of carbon precursor addition processes on the electrochemical

Shilei Ding, Zelong Jiang, Jing Gu, Hongliang Zhang, Jiajia Cai, Dongdong Wang

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 1,   Pages 148-155 doi: 10.1007/s11705-020-2022-x

Abstract: composites were synthesized using the ball-milling-assisted calcination method with different carbon precursor

Keywords： lithium titanate     carbon-coated     carbon precursor     synthetic process    

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Tracking of safety hazards and real-time-prediction model of safety risks on construction sites

Wu Weiwei,Patrick T. I. LAM,Li Qiming,Michael C. H. YAM,David A. S. CHEW

Strategic Study of CAE 2010, Volume 12, Issue 3,   Pages 68-72

Abstract: risks, while serving as a foundation for further study by drawing researchers' attention to the precursorsignals of safety hazards on construction sites.

Keywords： construction sites     safety risks     real-time prediction     precursor signals     signal detection theory    

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Particle formation of hydroxyapatite precursor containing two components in a spray pyrolysis process

W. Widiyastuti, Adhi Setiawan, Sugeng Winardi, Tantular Nurtono, Heru Setyawan

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 1,   Pages 104-113 doi: 10.1007/s11705-014-1406-1

Abstract: The particle formation mechanism of hydroxyapatite precursor containing two components, Ca(OOCCH ) anddroplets, a second evaporation due to crust formation, the decomposition reaction of each component of the precursor, and a solid-state reaction that included the kinetic parameters of the precursor regarding its twoThe rate of evaporation and the reacted fraction of the precursor both increased with temperature.were also suitable for predicting the average size of particles that contain two components in the precursor

Keywords： droplet     hydroxyapatite particle     CFD     tubular furnace     spray pyrolysis    

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Gear fault diagnosis using gear meshing stiffness identified by gearbox housing vibration signals

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 4, doi: 10.1007/s11465-022-0713-3

Abstract: The gear meshing stiffness (GMS) identification approach is proposed by using housing vibration signals

Keywords： gearbox fault diagnosis     meshing stiffness     identification     transfer path     signal processing    

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Emerging molecular subtypes and therapeutic targets in B-cell precursor acute lymphoblastic leukemia

Jianfeng Li, Yuting Dai, Liang Wu, Ming Zhang, Wen Ouyang, Jinyan Huang, Saijuan Chen

Frontiers of Medicine 2021, Volume 15, Issue 3,   Pages 347-371 doi: 10.1007/s11684-020-0821-6

Abstract: B-cell precursor acute lymphoblastic leukemia (BCP-ALL) is characterized by genetic alterations with

Keywords： BCP-ALL     subtypes     translocation     aneuploidy     sequence mutations    

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Hydrothermal synthesis of crystalline α-/β-MnO2 nanorods via γ-MnOOH nanorod precursors

ZHANG Weixin, REN Xiangbin, YANG Zeheng, WANG Hua, WANG Qiang, HUANG Fei

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 4,   Pages 365-371 doi: 10.1007/s11705-007-0066-9

Abstract: -MnO nanorods have been successfully prepared via a facile hydrothermal method from -MnOOH nanorods precursorThe -MnO nanorods are prepared from the 100°C -MnOOH precursor, while the -MnO nanorods are obtainedfrom the 150°C -MnOOH precursor, respectively.

Keywords： obtained     -MnOOH precursor     Besides     high-resolution transmission     precursor    

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Unknown fault detection for EGT multi-temperature signals based on self-supervised feature learning and

Frontiers in Energy 2023, Volume 17, Issue 4,   Pages 527-544 doi: 10.1007/s11708-023-0880-x

Abstract: Intelligent power systems can improve operational efficiency by installing a large number of sensors. Data-based methods of supervised learning have gained popularity because of available Big Data and computing resources. However, the common paradigm of the loss function in supervised learning requires large amounts of labeled data and cannot process unlabeled data. The scarcity of fault data and a large amount of normal data in practical use pose great challenges to fault detection algorithms. Moreover, sensor data faults in power systems are dynamically changing and pose another challenge. Therefore, a fault detection method based on self-supervised feature learning was proposed to address the above two challenges. First, self-supervised learning was employed to extract features under various working conditions only using large amounts of normal data. The self-supervised representation learning uses a sequence-based Triplet Loss. The extracted features of large amounts of normal data are then fed into a unary classifier. The proposed method is validated on exhaust gas temperatures (EGTs) of a real-world 9F gas turbine with sudden, progressive, and hybrid faults. A comprehensive comparison study was also conducted with various feature extractors and unary classifiers. The results show that the proposed method can achieve a relatively high recall for all kinds of typical faults. The model can detect progressive faults very quickly and achieve improved results for comparison without feature extractors in terms of F1 score.

Keywords： fault detection     unary classification     self-supervised representation learning     multivariate nonlinear time series    

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Fast removal of ocular artifacts from electroencephalogram signals using spatial constraint independent

Bang-hua YANG,Liang-fei HE,Lin LIN,Qian WANG

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 6,   Pages 486-496 doi: 10.1631/FITEE.1400299

Abstract: Ocular artifacts cause the main interfering signals within electroencephalogram (EEG) signal measurementsAn adaptive filter based on reference signals from an electrooculogram (EOG) can reduce ocular interference, but collecting EOG signals during a long-term EEG recording is inconvenient and uncomfortable for theThen the RLS based adaptive filter uses SC-ICs as reference signals to reduce interference, which avoids

Keywords： Ocular artifacts     Electroencephalogram (EEG)     Electrooculogram (EOG)     Brain-computer interface (BCI)     Spatial constraint independent component analysis based recursive least squares (SCICA-RLS)    

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Identification of faults through wavelet transform vis-à-vis fast Fourier transform of noisy vibration signals

Deepak PALIWAL,Achintya CHOUDHURY,T. GOVANDHAN

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 2,   Pages 130-141 doi: 10.1007/s11465-014-0298-6

Abstract: envelope detection with fast Fourier transform (FFT) and continuous wavelet transform (CWT) of vibration signalsBoth simulated and experimental signals from identical bearings have been considered for the purposeThe bearings have been modeled as spring-mass-dashpot systems and the simulated signals have been obtainedCWT with the proposed wavelets overcomes the short coming of FFT while processing a noisy vibration signals

Keywords： Fault detection     spline wavelet     continuous wavelet transform     fast Fourier transform    

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Precursor-driven structural tailoring of iron oxychloride for enhanced heterogeneous Fenton activity

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1533-1543 doi: 10.1007/s11705-023-2330-z

Abstract: Iron oxychloride (FeOCl) is a unique layered material with tunable electronic properties. The conventional synthetic route of chemical vapor transition involves a thermodynamics-driven gas–solid interfacial reaction which often generates macroscopic crystals with stable facets. In this study, through analyzing the effects of the synthetic parameters on the FeOCl synthesis, we discovered the dominant contribution of the α-Fe2O3 precursors on the chemical property of the FeOCl product, and subsequently developed a highly-controllable synthetic route of tailoring the FeOCl structures into small sizes and exposed high-energy facets via a facile and scalable mechanical-chemical approach. The synthesized products could be systematically tuned by the ball-milling conditions of the α-Fe2O3 precursors. With increased milling time, the FeOCl crystallites demonstrated reduced sizes and more exposed (110) facets. Intriguingly, these small-sized FeOCl catalysts exhibited much faster Fenton-like kinetics than the pristine macroscopic FeOCl materials. Specifically, FeOCl catalysts with a 12-hour milling time showed nearly 39 times higher efficiency toward phenol degradation than the pristine FeOCl. The structure-reactivity relationship was further elucidated using the combinatory analysis via density functional theory calculation, electron paramagnetic resonance and radical quenching probe experiments. This work provides a rationale for tailoring the surface structures of FeOCl crystallites for potential applications in environmental catalysis.

Keywords： FeOCl     mechanical activation     heterogeneous Fenton reaction     ball milling    

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Dielectric property of polyimide/barium titanate composites and its influence factors (II)

LIU Weidong, ZHU Baoku, XIE Shuhui, XU Zhikang

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 4,   Pages 417-421 doi: 10.1007/s11705-008-0078-0

Abstract: Using poly(amic acid) (PAA) as a precursor followed by thermal imidization, the polyimide/barium titanate

Keywords： thermal imidization     dielectric constant     particle     precursor     titanate composite    

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Title Author Date Type Operation

Destructive Earthquakes Are Predictable——The Physical Model of Earthquake Gestation and the Signal of Impending Quake

Sun Wei

Journal Article

Early T-cell precursor leukemia: a subtype of high risk childhood acute lymphoblastic leukemia

Meilin Ma, Xiang Wang, Jingyan Tang, Huiliang Xue, Jing Chen, Ci Pan, Hua Jiang, Shuhong Shen

Journal Article

Characteristics of metal magnetic memory signals of different steels under static tension

Yiliang ZHANG, Ruibin GOU, Jimin LI, Gongtian SHEN,

Journal Article

The role of natriuretic peptide precursor A gene polymorphism in the development of coronary heart disease

Ripen NSENGA MD, Longxian CHENG PhD, Mei’an HE PhD, Tangchun WU PhD,

Journal Article

Carbon-coated lithium titanate: effect of carbon precursor addition processes on the electrochemical

Shilei Ding, Zelong Jiang, Jing Gu, Hongliang Zhang, Jiajia Cai, Dongdong Wang

Journal Article

Tracking of safety hazards and real-time-prediction model of safety risks on construction sites

Wu Weiwei,Patrick T. I. LAM,Li Qiming,Michael C. H. YAM,David A. S. CHEW

Journal Article

Particle formation of hydroxyapatite precursor containing two components in a spray pyrolysis process

W. Widiyastuti, Adhi Setiawan, Sugeng Winardi, Tantular Nurtono, Heru Setyawan

Journal Article

Gear fault diagnosis using gear meshing stiffness identified by gearbox housing vibration signals

Journal Article

Emerging molecular subtypes and therapeutic targets in B-cell precursor acute lymphoblastic leukemia

Jianfeng Li, Yuting Dai, Liang Wu, Ming Zhang, Wen Ouyang, Jinyan Huang, Saijuan Chen

Journal Article

Hydrothermal synthesis of crystalline α-/β-MnO2 nanorods via γ-MnOOH nanorod precursors

ZHANG Weixin, REN Xiangbin, YANG Zeheng, WANG Hua, WANG Qiang, HUANG Fei

Journal Article

Unknown fault detection for EGT multi-temperature signals based on self-supervised feature learning and

Journal Article

Fast removal of ocular artifacts from electroencephalogram signals using spatial constraint independent

Bang-hua YANG,Liang-fei HE,Lin LIN,Qian WANG

Journal Article

Identification of faults through wavelet transform vis-à-vis fast Fourier transform of noisy vibration signals

Deepak PALIWAL,Achintya CHOUDHURY,T. GOVANDHAN

Journal Article

Precursor-driven structural tailoring of iron oxychloride for enhanced heterogeneous Fenton activity

Journal Article

Dielectric property of polyimide/barium titanate composites and its influence factors (II)

LIU Weidong, ZHU Baoku, XIE Shuhui, XU Zhikang

Journal Article