A5103146757- Acoustic Wave Phenomena Research
- Bone Tissue Engineering Materials
- Vehicle Noise and Vibration Control
- MXene and MAX Phase Materials
- Noise Effects and Management
- Collagen: Extraction and Characterization
- Aluminum Alloys Composites Properties
- Geotechnical Engineering and Underground Structures
- Wind and Air Flow Studies
- biodegradable polymer synthesis and properties
- Structural Load-Bearing Analysis
- Geotechnical Engineering and Analysis
- Graphene and Nanomaterials Applications
- Dental Implant Techniques and Outcomes
- Coronary Interventions and Diagnostics
- Facial Trauma and Fracture Management
- Structural Engineering and Vibration Analysis
- Innovations in Concrete and Construction Materials
- Elasticity and Material Modeling
- Geotechnical Engineering and Soil Mechanics
- Bone and Dental Protein Studies
- Polymer composites and self-healing
- Geotechnical Engineering and Soil Stabilization
- Intermetallics and Advanced Alloy Properties
- Cardiac Valve Diseases and Treatments
Third Hospital of Hebei Medical University
2021-2024
Hospital of Hebei Province
2021-2024
Hebei Medical University
2021-2024
Southeast University
2021-2023
Jilin University
2018-2023
Jilin Medical University
2023
Northeastern University
2021
Ministry of Education of the People's Republic of China
2021
China State Construction Engineering (China)
2021
State Key Laboratory of Automotive Simulation and Control
2018-2019
Considering the environmental pollution caused by waste rubber, some measures should be taken to improve utilization rate of rubber.In this study, effect Ethylene Propylene Diene Monomer (EPDM) particles in polyurethane (PU) foams on sound absorption behavior is investigated for improving environment within vehicles and reducing pollution.EPDM different contents hardness are used as fillers producing with pore morphologies properties.The results show that adding EPDM foam would produce...
Polyurethane (PU) foams are widely used as acoustic package materials to eliminate vehicle interior noise. Therefore, it is important improve the performances of PU foams. In this paper, grey relational analysis (GRA) method and multi-objective particle swarm optimization (MOPSO) algorithm applied foam composites. The average sound absorption coefficient transmission loss set objectives. hardness content Ethylene Propylene Diene Monomer (EPDM) deionized water modified isocyanate (MDI)...
ABSTRACT Polyurethane foam is one of the sound absorbing materials because its advantage in lightweight, absorption and low cost. Therefore, it important to optimize formulation for better performance. In this study, experimental optimization was carried out with a response surface methodology investigate effects different variables including catalyst triethanolamine, A33, additive polyethylene fiber. The mathematical model developed correlating data. parameters were optimized by adaptive...
Repairing load-bearing bone defects in children remains a big clinical challenge. Mineralized collagen (MC) can effectively simulate natural composition and hierarchical structure has good biocompatibility conductivity. Polylactic acid (PLA) is regarded as gold material because of its mechanical properties degradability. In this study, we prepare MC/PLA composite scaffolds via situ mineralization freeze-drying. Cell, characterization, animal experiments compare evaluate the biomimetic repair...
Flexible polyurethane (PU) foams with varying polyethylene fiber contents were synthesized to improve their acoustic performances. The purpose of this study was investigate the effects different PU on resultant sound absorption, which characterized by impedance tube technique obtain incident absorption coefficient. Other parameters related performance also measured such as microstructure, porosity and airflow resistivity. In paper, these analyzed compared those pure foam. results showed that...
Abstract The requirements for construction technology of super high-rise buildings are always at a relatively high level. With the rapid development our society and continuous improvement scientific technological strength, in recent years, aluminum formwork hydraulic climbing super-high-rise have developed rapidly, been widely used actual construction. building this project adopts formwork+hydraulic system core tube This paper analyzes studies cooperation application under system, safety...
At present, percutaneous coronary intervention (PCI) is the most effective treatment of artery stenosis. However, in case post-dilation stent needed, tip commonly used balloon catheter cannot always pass through smoothly, especially when it situated curved part vessel. To improve performance traditional catheter, a preliminary design novel with spherical-tip proposed. Since this still unclear, study, finite element analysis (FEA) and experimental validation blood vessel different curvature...
Few studies, especially those related to field tests, have examined the bending behaviors of drilled shafts with partial casings (DSPCs). This work reports results experimental studies on behavior DSPCs under lateral loads, including an in situ test and a set laboratory tests. First, DSPC diameter 2 m length 87.9 was studied clay beds, steel casing 2.0 33 used. In this test, strain gauges were distributed along rebars concrete pile wall tube at different depths, thus longitudinal strains...