A5047899849- Non-Destructive Testing Techniques
- Structural Integrity and Reliability Analysis
- Welding Techniques and Residual Stresses
- Ultrasonics and Acoustic Wave Propagation
- Advanced Fiber Optic Sensors
- Geotechnical Engineering and Underground Structures
- Advanced Sensor and Control Systems
- Advanced Algorithms and Applications
- Advanced Computational Techniques and Applications
- Hydrogen embrittlement and corrosion behaviors in metals
- Emotion and Mood Recognition
- Neural Networks and Applications
- Metaheuristic Optimization Algorithms Research
- Optical Systems and Laser Technology
- Evolutionary Algorithms and Applications
- Structural Health Monitoring Techniques
- Climate change and permafrost
- Advanced Sensor and Energy Harvesting Materials
- Dielectric properties of ceramics
- Industrial Vision Systems and Defect Detection
- Photoacoustic and Ultrasonic Imaging
- Pulsed Power Technology Applications
- Flow Measurement and Analysis
- Photonic and Optical Devices
- Electrostatic Discharge in Electronics
Research Institute of Petroleum Exploration and Development
2024
Shanghai Institute for Science of Science
2024
Hainan University
2024
Focused Photonics (China)
2024
Institute of Industrial Engineering
2024
Shandong Normal University
2024
Institute of Science and Technology
2023
Chinese Academy of Sciences
2023
Shanghai Jiao Tong University
2021
Chengdu University of Technology
2016-2021
Among all solutions of emotion recognition tasks, electroencephalogram (EEG) is a very effective tool and has received broad attention from researchers. In addition, information across multimedia in EEG often provides more complete picture emotions. However, few the existing studies concurrently incorporate temporal domain, frequency domain functional brain connectivity. this paper, we propose Multi-Domain Adaptive Graph Convolutional Network (MD-AGCN), fusing knowledge both to fully utilize...
The global reliance on oil and gas pipelines for energy transportation is increasing. As the pioneering review in field of ultrasonic defect detection based bibliometric methods, this study employs visual analysis to identify most influential countries, academic institutions, journals domain. Through cluster analysis, it determines primary trends, research hotspots, future directions critical field. Starting from current industrial in-line inspection (ILI) level, paper provides a flowchart...
The receiver operating characteristic (ROC) is commonly used to analyze the performance of classifiers in data mining. An important topic ROC analysis convex hull (ROCCH), which least majorant (LCM) empirical curve and covers potential optima for a given set classifiers. ROCCH maximization problems have been taken as multiobjective optimization problem (MOPs) some previous work. However, special characteristics makes it different from traditional MOPs. In this paper, difference will be...
A GelSight sensor is a tactile sensing device comprising clear elastomeric pad covered with reflective membrane, coupled optics to measure the membrane's deformations. When pressed against an object's surface, membrane changes shape in accord mechanical and geometrical properties of object. Since soft tissue more compliant than hard tissue, one can detect embedded lump by pressing surface observing hump that forms over lump. We tested this system's sensitivity constructing phantoms rubber...
Pipeline operational safety is the foundation of pipeline industry. Inspection and evaluation defects an important means ensuring safe operation pipelines. In-line inspection Magnetic Flux Leakage (MFL) can be used to identify analyze potential defects. For MFL identification with inspecting in long distance, there exists issues low efficiency, misjudgment leakage judgment. To solve these problems, a signal method based on improved deep residual convolutional neural network attention module...
The development of oil and gas pipelines in the direction large diameter, high pressure, steel grade has put forward higher requirements for pipeline inspection technology. Traditional magnetic flux leakage (MFL) internal techniques suffer from low micro-metallic defect rates are significantly affected by velocity effect. Similarly, eddy current (EC) technologies exhibit limitations capability wall defects noticeably influenced lift-off effects. This paper addresses these challenges...
All-fiber laser Doppler vibrometer systems have great potential in the application of remote acoustic detection. However, due to requirement for a long operating distance, coherence length is required, which can drive system cost high. In this paper, using short proposed and demonstrated. Experimental analysis indicates that multi-longitudinal modes cause detection noise unequal between two paths (local oscillator path transmission path) increases intensity frequency components noise. order...
Emotion recognition plays an important role in di-agnosing and treating many mental disorders as well affective computing. Among six basic emotions, anger surprise are relatively hard to be elicited lab settings, the complementary representation properties of encephalography (EEG) eye movement signals on recognizing emotions remain unknown. Although transformer architecture has ability parallelism which avoids sequential operations recurrent convolutional layers, knowledge its performance...
With the robust growth of national economy, demand for oil and natural gas continues to rise, heightening significance pipeline transportation in energy sector. However, long-term operations are often subjected factors such as corrosion, aging, damage, which can result leaks safety incidents, posing significant threats life, property, environmental integrity. Consequently, timely precise detection defects estimation their sizes hold paramount practical importance. This research endeavors...
Inertial mapping unit (IMU) in-line inspection (ILI) has become routine practice for long-distance buried transport pipelines of oil and gas. It is capable measuring the pipeline centerline position coordinates locating anomalies, features fittings to help company manage it. The IMU data also can be used compute bending strain assess potential deviation from original where endures extra stress. This paper introduces main principle, measurement processing ILI. As a key point calculation...
The accurate measurement of pipeline centerline coordinates is great significance to the management oil and gas pipelines energy transportation security. main method for in-line inspection technology based on multi-sensor data fusion, which combines inertial unit (IMU), above-ground marker, odometer. However, observation velocity not because odometer often slips in actual inspection, greatly affects accuracy measurement. In this paper, we propose a new compensation long short-term memory...
The bending strain of long distance oil and gas pipelines may lead to instability the pipeline failure materials, which seriously deteriorates transportation security gas. To locate position for maintenance, an Inertial Measurement Unit (IMU) is usually adopted in a Pipeline Inspection Gauge (PIG). attitude data IMU acquired calculate pipe. However, because vibrations other system noises, resulting calculations be incorrect. improve measurement precision, method, based on wavelet neural...
External corrosion dent is a common type of compound dent. On the one hand, this reduces bearing area and capacity pipeline. other it leads to an increase in stress–strain concentration anti-fatigue load pipeline, which more harmful service safety pipeline than simple In study, reliability modeling method was verified by numerical inversion full-size dented pipe test. A three-dimensional finite element model for with small established analyzing internal detection data on defects pipes...