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Differences between SSRI and SNRI in depression treatment
Published 2025-01-01Get full text
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Multiwideband Bandpass Filter Based on Folded Quad Cross-Stub Stepped Impedance Resonator
Published 2020-01-01Get full text
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607
Persistence and Nonpersistence of a Predator Prey System with Stochastic Perturbation
Published 2014-01-01Get full text
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THE PROBLEM OF ACTIVIZATION OF ECONOMY INNOVATIVE DEVELOPMENT
Published 2019-03-01Get full text
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Legal and Ethical Considerations in the Use of Force against Civilian Aircraft
Published 2024-03-01Get full text
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NEOBANKING AS A DIRECTION OF DEVELOPMENT OF MODERN FINANCIAL TECHNOLOGIES
Published 2020-05-01Get full text
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613
Material choice to optimise the performance index of isogrid structures
Published 2024-01-01“…Three key qualities should define the structures used in the aviation industry: they should be light, rigid, and strong. …”
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614
Simulation and Experimental Verification of Barrel Finishing of Spiral Bevel Gears Based on the DEM
Published 2022-11-01“…A theoretical simulation and an experimental research of an aviation spiral bevel gear is carried out using the parallel spindle type barrel finishing process, a mathematical model of the process motion is established, the formula of cutting speed between abrasive and tooth surface is deduced, and the main factors affecting the result are analyzed; with the help of the Hertz-Mindlin with archard wear model of the EDEM software, the tooth surface wear is simulated; through this process, the surface quality of the disc spiral bevel gear surface is experimentally studied. …”
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615
Effects of temperature on mechanical properties and impact resistance of carbon fiber/bismaleimide resin composites
Published 2025-01-01“…These results provide valuable reference data and significant relevance of carbon fiber/bismaleimide resin composites in the aviation field.…”
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616
Development and application of a lightweight five-axis parallel machining robot
Published 2021-09-01“…In the fields of national defense, aerospace, and energy, there exist plenty of complex surface core parts, for example, the aircraft structural components and turbine blades.These parts usually have the machining requirements of large material removal rate, high dimensional accuracy and high surface quality.The traditional five-axis serial machine centers face two problems in the machining process: (1) the tool will automatically rotate when it passes through the pole posture; (2)the driving axes’dynamic response does not match.It was tried to solve these problems from the view of machining equipments’ configuration.By making fully use of the advantages of parallel robots in compact structure, high stiffness, kinematic flexibility and dynamic response, a lightweight five-axis parallel machining robot with attitude coupling motion and uniform driving axes’ dynamic response was developed.The optimal design, motion control, and precision guarantee were carried out to realize the high-efficiency and high-quality machining of complex curved parts.Finally, the application verification in AVIC (Aviation Industry Corporation of China) Chengdu Aircraft Industrial (Group) Co., Ltd.was conducted.…”
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617
ANALYSIS AND EXPERIMENTAL VERIFICATION OF THE EFFECТ OF ASSEMBLY STRESS ON THE RANDOM FATIGUE LIFE OF AIRCRAFT PIPELINE
Published 2024-02-01“…The research results provide theoretical reference and technical support for the design and assembly theory of aviation hydraulic pipeline.…”
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Self-Diagnosis and Self-Reconfiguration of Piezoelectric Actuator and Sensor Network for Large Structural Health Monitoring
Published 2015-04-01“…Then, the effects of piezoelectric actuator and sensor bonding defects on Lamb wave propagations are investigated in a real-world monitoring experiment for the large aviation aluminum plate. Lastly, the self-diagnosis and self-reconfiguration method of piezoelectric actuator and sensor network for large structural health monitoring based on Lamb wave for the passive and active damage monitoring is verified in the experiment. …”
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O rio Potengi e a cidade do Natal em cinco tempos históricos. Aproximações e distanciamentos
Published 2015-03-01“…The river as an obstacle to the city (1850-1916); Time 4. The aviation approximating the river to the city (1920-1945); Time 5. …”
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An Optimization Method of Multiclass Price Railway Passenger Transport Ticket Allocation under High Passenger Demand
Published 2020-01-01“…The development of high-speed railways (HSR) in China has attracted a large number of passengers from highway and aviation to railways due to their comfort and high speed. …”
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