A5101774443- Hydraulic and Pneumatic Systems
- Wave and Wind Energy Systems
- Wind Energy Research and Development
- Industrial Vision Systems and Defect Detection
- Lubricants and Their Additives
- Pediatric Hepatobiliary Diseases and Treatments
- Tribology and Wear Analysis
- Medical Imaging and Analysis
- Dam Engineering and Safety
- Medical Image Segmentation Techniques
- Adhesion, Friction, and Surface Interactions
- Image and Object Detection Techniques
- Advanced Statistical Process Monitoring
- Advanced Machining and Optimization Techniques
- Fault Detection and Control Systems
- Retinal Imaging and Analysis
- Fluid Dynamics Simulations and Interactions
- Advanced Thermoelectric Materials and Devices
- Tailings Management and Properties
- Advanced Surface Polishing Techniques
- Bauxite Residue and Utilization
- Brain Tumor Detection and Classification
- Icing and De-icing Technologies
- Lower Extremity Biomechanics and Pathologies
- Adaptive Control of Nonlinear Systems
Ningbo University
2009-2025
Institute of Applied Technology
2023-2024
Ningbo No. 2 Hospital
2024
Ningbo University of Technology
2011-2023
Henan University of Urban Construction
2016-2022
Zhejiang University
2009-2020
Air Force Engineering University
2017
Harbin Institute of Technology
2006
The quality of surface morphology can reflect the electrical performance silver-based contacts. Existing research on correlation morphological-electrical is based solely empirical models from traditional visual inspections and only considers impact visually observable macro-textural features performance. However, influence micro-textural should not be overlooked. This paper establishes a contactless acquisition device laser profilometer to address assembly characteristics contact components....
Based on adaptive inverse control theory, combined with neural network, network controller is developed and applied to an electro-hydraulic servo system. The system model identifier constructed by network. task accomplished generating a tracking error between the input command signal response. weights of are updated in such way that minimized sense mean square using (LMS) algorithm close model. above steps make gain serial connection unity, realizing waveform replication function real-time....
Wave and current energy can be harnessed in the East China Sea South Sea; however, both areas are subject to high frequencies of typhoon events. To improve safety ocean conversion device, a Floating Ocean Energy Conversion Device (FOECD) with single mooring system is proposed, which towed avoid severe conditions or for regular maintenance. In this paper, structure FOECD introduced, it includes catamaran platform, an oscillating buoy part, turbine blade, hydraulic storage electrical...
The blade is the key component for energy capture in horizontal axis tidal current turbine, and blade’s design directly related to efficiency of power generation device. seawater flow velocity a crucial parameter design. Since changes constantly, it extremely important determine blade. This article proposes calculation method so that designed can achieve better collection under variable velocity. study performed following investigations: (1) author tested analyzed variation at experimental...
Summary The graph isomorphism problem is to determine two finite graphs that are isomorphic which not known with a polynomial‐time solution. This paper solves the simple undirected an algorithmic approach as NP=P and proposes solution check if or not. Three new representation methods of vertex/edge adjacency matrix triple tuple proposed. A duality edge vertex reflexivity between were first introduced present core idea. Beyond this, mathematical approval based on equivalence permutation...
Aiming at the research on combustion and emission characteristics of heavy-duty vehicle diesel engine, a bench test was carried out for PM NOx certain type engine under different speed loads. Results shows that this ignition delay is longer proportion diffusion increases high external conditions. Under 1400 r/min, decreases with load increases, duration shortened first, then increases. The cylinder temperature higher lower emissions soot are heavier; large heavy as well.
Summary The performance of active contour model is limited on retinal vessel segmentation as images are usually corrupted with intensity inhomogeneity, low contrast, and weak boundary, which severely affect the results vessels. A new combining local global information proposed in this paper to facilitate segmentation. In our model, fuzzy conception firstly introduced methods generally provide more accurate robust clustering concept fuzziness clustering, represented by membership, can reflect...
The deployment of a manufacturing execution system (MES) holds promising potential in facilitating the accumulation substantial amount inspection data. Low quality levels discrete environments are result multi-factor coupling and failure to detect issues promptly accordance with settings, which may trigger propagation downstream defects. Currently, most methods consist direct measurements followed by manual judgment. integration deep learning provides feasible way identify defects on time,...
In this investigation, an exact method based on the first‐order shear deformation shallow shell theory (FSDSST) is performed for free vibration of functionally graded sandwich shells (FGSSS) Winkler and Pasternak foundations with general boundary restraints. Vibration characteristics FGSSS have been obtained by energy function represented in orthogonal coordinates, which displacement rotation components consisted standard double Fourier cosine series several closed‐form supplementary...
As one of the critical test equipment, hydraulic servo shaking table is widely used in environment simulation structural components and systems. However, inherent nonlinear factors a can cause amplitude attenuation phase lag when corresponding to sinusoidal acceleration signal, which leads serious harmonic distortion. In order improve waveform reproduction performance signals, should be estimated accurately. this paper, multi-innovation stochastic gradient (MISG) algorithm presented for...
In laparoscopic cholecystectomy (LC), the anatomical variation of gallbladder canal should be noted. Bile duct injury is one most serious complications LC, which might lead to complications. This case because an intraoperative accidental cut right anterior inferior lobe bile joins cystic duct, after confirming by magnetic resonance imaging-guided real-time three-dimensional reconstruction and performing end-to-end anastomosis tube under laparoscopy, patient was discharged 5 days surgery,...
Abstract The transmission accuracy of the ball screw depends on processing quality thread profile. Traditional detection method profile is complicated and inefficient. When shooting in normal section, camera axis must be tilted to lead angle, adjustment errors are easily introduced from both front view top view. axial spiral lines block each other, so actual cannot captured for detection. In order solve above problems, a proposed: theoretical equation section derived based projection curve...
In the two-step flocculation process, shear has a significant impact on rheological properties of flocculating slurry. this study, orthogonal experiments process for fine iron tailings were designed. Based change ratio, different rates and time designed, yield stress, plastic viscosity maximum packing fraction flocculated suspension in each group measured calculated with rheometer. The result range variance analysis shows rate primary broken phase was biggest factor affecting stress slurry...
Arthroscopic surgery is a primary technique for treating joint-related diseases, widely embraced in clinical practice its minimally invasive and precise nature. However, intraoperative bleeding often generates blood mist, significantly impairing the surgeon's field of view necessitating prompt high-flow drainage clearance. Therefore, accurate detection localization prerequisite mist removal. This paper introduces pixel-based feature extraction scheme aimed at detecting frames arthroscopic...
Research shows that treadmill shock-absorbing devices can reduce the impact of ground reaction forces on knee and ankle joints during running. Most existing treadmills use fixed or passive shock absorption, meaning their systems do not actively adjust to changes in (GRFs). Methods: This study establishes a mathematical model integrating human motion biomechanics running surfaces, analyzing relationships between various parameters affecting system. Ultimately, an optimal control system is...
Tool geometrical parameters had great influence on the cutting. The orthogonal finite element model was established. used to simulate of (rake angle, clearance radius tool tip) high speed cutting aluminum alloy 7050T7451, and investigate these chip formation. In same condition, force experiment carried out. A good agreement between simulation achieved. results were proved be correct. study provided base for selection optimization in 7050T7451.
In this paper, the blade solidity of tidal current turbine was investigated. Based on element momentum theory, different design flow velocities were selected to two types with solidities. The geometric parameters calculated using MATLAB programming, and performance blades compared in terms start-up rate, power generation thrust by test experiment, which showed that higher has better energy capture efficiency at low rates. is than solidity, but due high also high, should be taken into account...
In previous research on treadmills, the main focus has been comparing physiological differences induced by running treadmill decks and other exercise surfaces, with relatively little mechanical properties of decks. Reducing sports injuries is a common desire runners, which may be closely related to muscle activity. Obviously, play an important role in this process. Muscle activity was evaluated based mass-spring-damper (MSD) model that provides simulated signal ground reaction forces (GRF)...
The max power per mass/volume of micro (mini) thermoelectric is related not only to the internal efficiency generator but also heat source and sink device. In this paper, high caloric value liquid fuel energy store PCM fuels were used as while low phase transition temperature sink, device was designed for test. Furthermore, analysis data conducted by experiments, merit status in quo using Radioisotope analyzed, which shows that it useful make from mini micro. experimental results show adding...