Sheng Cheng

ORCID: 0000-0003-4207-4086
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About
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Research Areas
  • Microstructure and mechanical properties
  • Magnetic and transport properties of perovskites and related materials
  • Microstructure and Mechanical Properties of Steels
  • Electronic and Structural Properties of Oxides
  • Advanced Condensed Matter Physics
  • Magnetic properties of thin films
  • Metal and Thin Film Mechanics
  • Microgrid Control and Optimization
  • Multiferroics and related materials
  • Ferroelectric and Piezoelectric Materials
  • Radio Frequency Integrated Circuit Design
  • Metallurgy and Material Forming
  • Aluminum Alloys Composites Properties
  • HVDC Systems and Fault Protection
  • Advanced DC-DC Converters
  • Radio Astronomy Observations and Technology
  • Advanced Memory and Neural Computing
  • Analog and Mixed-Signal Circuit Design
  • Metal Forming Simulation Techniques
  • High-Velocity Impact and Material Behavior
  • Acoustic Wave Resonator Technologies
  • Metal Alloys Wear and Properties
  • High-Voltage Power Transmission Systems
  • Silicon Carbide Semiconductor Technologies
  • Optimal Power Flow Distribution

Xi'an Jiaotong University
2014-2025

Chinese Academy of Sciences
2022-2025

Chengdu University of Traditional Chinese Medicine
2025

University of Science and Technology of China
2025

Suzhou Institute of Nano-tech and Nano-bionics
2025

China Spallation Neutron Source
2021-2024

Commercial Aircraft Corporation of China (China)
2024

Institute of High Energy Physics
2022-2024

Johns Hopkins University Applied Physics Laboratory
1995-2022

Changzhou University
2020-2022

Simultaneous increase of the ductility and strength a bulk nanostructured Al alloy with an average grain size ∼ 100 nm (curve NS) has been achieved by precipitating Guinier–Preston (G–P) zones, η′, η particles NS+P). Bulk materials usually have high strength, but disappointingly low ductility. All previous attempts to enhance sacrificed their yield strengths. This strategy is applicable many alloys composites. Supporting information for this article available on WWW under...

10.1002/adma.200600310 article EN Advanced Materials 2006-08-28

This paper investigates the coordinated voltage control problem for smart distribution grid with integration of distributed generation (DG). By actively participating in together under-load tap changer and shunt capacitors, DG can operate more effectively network. The objective proposed method is to minimize active power loss system decrease number switching device operations while maintaining within allowable range. Nondispatchable dispatchable are both considered method. To solve mixed...

10.1109/tsg.2014.2376197 article EN IEEE Transactions on Smart Grid 2015-01-21

Abstract In the context of current energy Internet, emergence a large number productive consumers will create new business model. decentralized electricity market, cost traditional centralized solution construction, management and maintenance is too high, it difficult to support collection, transmission, reception, storage analysis massive data. To provide this phenomenon, we apply blockchain technology distributed market achieve peer transactions in power systems. The which very popular...

10.1088/1755-1315/93/1/012065 article EN IOP Conference Series Earth and Environmental Science 2017-11-01

This study investigates the optimal power flow (OPF) problem for distribution networks with integration of distributed generation (DG). By considering objectives minimal line loss, voltage deviation and maximum DG active output, proposed OPF formulation is a multi-object optimisation problem. Through normalisation each objective function, multi-objective transformed to single-objective optimisation. To solve such non-convex problem, trust-region sequential quadratic programming (TRSQP)...

10.1049/iet-gtd.2013.0389 article EN IET Generation Transmission & Distribution 2013-08-30

In situ electrical control of the Dzyaloshinskii-Moriya interaction (DMI) is one central but challenging goals toward skyrmion-based device applications. An atomic design defective interfaces in spin-orbit-coupled transition-metal oxides can be an appealing strategy to achieve this goal. work, by utilizing distinct formation energies and diffusion barriers oxygen vacancies at SrRuO3 /SrTiO3 (001), a sharp interface constructed between oxygen-deficient stoichiometric . This interfacial...

10.1002/adma.202102525 article EN Advanced Materials 2021-07-05

The orthorhombic rare-earth manganates and ferrites multiferroics are promising candidates for the next generation multistate spintronic devices. However, their ferroelectric polarization is small, transition temperature far below room (RT). improvement of ferroelectricity remains challenging. Here, through subtle strain defect engineering, an RT colossal 4.14 μC/cm 2 achieved in SmFeO 3−δ films, which two orders magnitude larger than its bulk also largest one among manganite ferrite family....

10.1126/sciadv.abm8550 article EN cc-by-nc Science Advances 2022-04-01

An ultrahigh-speed fully differential charge pump with minimum current mismatch and variation is proposed in this brief. A suppression circuit employed to minimize the between charging discharging currents, which minimizes steady-state phase error a phase-locked loop (PLL). output change of voltage, reduces bandwidth PLL. Techniques are suppress both low-speed glitches high-speed allow glitch-free operation ultrafast input pulses. The designed simulated under power supply 3.3 V TSMC 0.35-mum...

10.1109/tcsii.2006.879100 article EN IEEE Transactions on Circuits and Systems II Analog and Digital Signal Processing 2006-09-01

Theoretical modeling suggests that the grain size remains unchanged during fatigue crack growth in nanocrystalline metals. Here we demonstrate a modulated structure is generated Ni-Fe alloy under cyclic deformation. Substantial coarsening and loss of twins are observed path cracks, while grains away from cracks remain largely unaffected. Statistical analyses suggest realized through lattice rotation coalescence may be related to detwinning process near tip.

10.1103/physrevlett.104.255501 article EN Physical Review Letters 2010-06-24

In situ synchrotron and neutron diffraction were used to study deformation mechanisms in Ni over a broad range of grain sizes. The experimental data show that unlike coarse-grained metals, where the is dominated by dislocation slip, plastic nanocrystalline mediated grain-boundary activities, as evidenced lack intergranular strain texture development. For ultrafine-grained Ni, although slip an active mechanism, twinning also plays important role, whose propensity increases with size.

10.1103/physrevlett.103.035502 article EN Physical Review Letters 2009-07-17

In this work, the mechanism of RF loss up to 110 GHz for N-polar GaN has been studied. With assistance S-parameter characterization combined with secondary ion mass spectroscopy analyses, incorporated oxygen impurity identified be main source bringing about severe GaN. The compensation Fe-doping enables an effective reduction in loss. Moreover, unintentionally doped (UID) layer grown on top Fe-doped buffer requires a careful design due distinct memory effect optimization its thickness, very...

10.1063/5.0256418 article EN Applied Physics Letters 2025-02-10

In practical engineering, uncertainties inevitably exist in the models and measurement data used for structures. Therefore, a statistical strategy related to damage detection methods become crucial. this paper, probabilistic method FG Euler–Bernoulli beam structures is proposed, extending approach originally developed isotropic materials. Our determines probability of occurrence each element, which aids evaluating whether have been damaged. This evaluation based on integrating sensitivity...

10.3390/buildings15091521 article EN cc-by Buildings 2025-05-01

10.1016/j.ijfatigue.2005.06.027 article EN International Journal of Fatigue 2005-08-16
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