A5029406359- Bladed Disk Vibration Dynamics
- Brake Systems and Friction Analysis
- Fire effects on concrete materials
- Structural Behavior of Reinforced Concrete
- Advanced machining processes and optimization
- Advanced Surface Polishing Techniques
- Structural Load-Bearing Analysis
- Advanced Numerical Analysis Techniques
- Magnetic Bearings and Levitation Dynamics
- Vibration and Dynamic Analysis
- Dynamics and Control of Mechanical Systems
- Tribology and Lubrication Engineering
- Catalysis for Biomass Conversion
- Insect symbiosis and bacterial influences
- Vibration Control and Rheological Fluids
- Probabilistic and Robust Engineering Design
- Mechanical stress and fatigue analysis
- Advanced Multi-Objective Optimization Algorithms
- Research on Leishmaniasis Studies
- Eosinophilic Esophagitis
- Multiple Myeloma Research and Treatments
- Topology Optimization in Engineering
- Turbomachinery Performance and Optimization
- Adhesion, Friction, and Surface Interactions
- Iterative Learning Control Systems
Wenzhou Medical University
2022-2024
Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University
2022-2024
Northwestern Polytechnical University
2017-2024
Zhejiang University
2024
Shaanxi University of Science and Technology
2018-2024
Shanghai Xiandai Architectural Design
2020-2021
Shanghai Architectural Design & Research Institute
2020-2021
Southeast University
2019
The harlequin ladybird, Harmonia axyridis , is a predatory beetle used globally to control pests such as aphids and scale insects. Originating from East Asia, this species has become highly invasive since its introduction in the late 19th century Europe North America, posing threat local biodiversity. Intraguild predation hypothesized drive success of species, but underlying mechanisms remain unknown. In study, feeding assay revealed that while ladybirds survive on seven-spotted ladybird...
Dry friction dampers are widely used to reduce vibration. The forced vibration response of a simplified turbine blade with new kind under-platform dry is studied in this paper. model consists clamped as two rigidly connected beams and the form masses which allowed slide along platform horizontal direction vibrate vertical direction. vibrations dampers, transverse coupled by at contact interfaces assumed follow classical discontinuous Coulomb’s law friction. motion leads time-varying forces...
This article studies energy dissipation of a friction damper (due to stick–slip vibration) in the context harmonic excitation. There are numerous applications such dampers engineering. One particular example is new kind under-platform dry for aero engines. The model consists clamped cross-like beam structure and two masses (friction dampers) contact with short cross. allowed slide along extra vertical beams. They can exhibit three distinct dynamic regimes: pure slip, stick mixture relative...
There is keen interest in better understanding the impacts of alpha-linolenic acid (ALA), a plant-derived n-3 fatty acid, ameliorating development cancer; however, results several prospective cohorts present an inconsistent association between ALA intake and incident colorectal cancer (CRC). We aimed to investigate summary dietary biomarkers with CRC risk based on cohorts.Pertinent were identified Cochrane Library, PubMed, EMBASE from inception February 2022. Study-specific ratios (RRs) 95%...
High-cycle fatigue (HCF) failure of the turbine blades aero-engines caused by high vibrational stresses is one main causes aero-engine incidents [...]
Cutting chatter is extremely harmful to the machining process, and it of great significance eliminate through analyzing stability process. In this work, milling process with multiple delays investigated. Considering regeneration effect, dynamics variable pitch cutter modeled as periodic coefficients delayed differential equations (DDEs) delays. An adaptive variable-step numerical integration method (AVSNIM) considering effect helix angle developed firstly, which can discretize cutting period...
Shroud devices which are typical cyclic symmetric structures widely used to reduce the vibration of turbine blades in aero engines. Asymmetric rub-impact adjacent shrouds or aerodynamic excitation forces can excite bending-torsion coupling shrouded blades, will lead complex contact motions. The aim this paper is study dynamic characteristics using a numerical method. contact-separation transition mechanism under motions studied, corresponding boundary conditions set up, and influence moments...
Chatter stability analysis is an effective way to optimize the cutting parameters and achieve chatter-free machining. This paper proposes a milling chatter method based on localized differential quadrature (LDQM), which has advantages of simple principle, easy application, high computational efficiency. The process, considering regeneration effect, modeled using linear periodic delay equations (DDE), then state transition matrix during adjacent period constructed LDQM, finally, process...
Chatter causes great damage to the machining process, and selection of appropriate process parameters through chatter stability analysis is significance for achieving chatter-free machining. This article proposes a milling method based on barycentric rational interpolation differential quadrature (DQM). The dynamics considering regeneration effect first modelled as time-delay equation (DDE). When adjacent pitch angles cutter are symmetric, dynamic contains single time delay. Otherwise, when...
Abstract Dietary n -3 PUFA may have potential benefits in preventing peptic ulcer disease (PUD). However, data from observational epidemiological studies are limited. Thus, we conducted a Mendelian randomisation analysis to reveal the causal impact of on PUD. Genetic variants strongly associated with plasma levels total or individual including plant-derived α-linolenic acid and marine-derived EPA, DPA DHA were enrolled as instrumental variables. Effect size estimates PUFA-associated genetic...
Two-stage image inpainting method based on transformer and Fast Fourier convolution
The nonlinear forced vibration responses of integrally shrouded turbine blade considering different contact state are investigated in this paper. A lumped mass model separation and reattachment adjacent shrouds centrifugal stiffening effects is established its dynamic equation deduced. Collision force approximated by linear cubic springs together which more realistic, friction an exponential-type velocity-dependent model. Numerical results indicate that displays very complex phenomena it can...