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9101
An ecological psychology perspective in teaching Chinese online
Published 2023-06-01“…In this paper, we first introduce three ecological principles for designing Chinese language online teaching and learning activities drawing from ecological psychology. …”
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9102
Research on LEO Satellite Network Routing Security
Published 2023-06-01“…The design of secure mechanisms and failure recovery mechanisms for inter-satellite routing has become pivotal in maintaining dependable communication within the LEO satellite network.To address the potential security threats faced by satellite networks, the impact of different routing attack behaviors on a typical inter-satellite routing protocol was analyzed and differentiated packet security authentication mechanisms and link failure recovery mechanisms were designed.Additionally, a satellite network emulation platform based on virtualization technology was constructed, enabled the verification of the effectiveness of the designed inter-satellite routing security mechanisms through the emulation of various routing attack scenarios.Furthermore, performance metrics such as CPU utilization and packet processing time were also evaluated before and after the introduction of security mechanisms.Experimental results demonstrated that the proposed inter-satellite routing security mechanism effectively mitigated multiple security threats in the space network environment while reduced communication latency caused by sudden link failures, thereby ensured secure and reliable communication within the LEO satellite network.…”
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9103
Key Technology Research on Metal Structure of Datengxia Spillway Gate
Published 2022-01-01“…Using the main dam of the Datengxia Hydro Project as a background,a brief introduction to the metal structure arrangement of the spillway gate.The sluice gate has a large number of discharge holes,large size,frequent operation,high drainage control requirements,and very complex hydraulics conditions.In order to ensure the flood discharge building operation safe and reliable,through the model test and three-dimensional finite element analysis,solve the discharge sluice arc gate flow shock vibration,low hole arc door support structure analysis and other key technical problems,optimize the structure design of the equipment,made clear about the discharge sluice metal structure equipment safety local open height,improve the reliability of the normal operation of the hub.Especially the design of the low hole arc gate,its orifice size and design head and other technical indicators are in the forefront of the country,has a reference to the same type of project.…”
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9104
Strength Analysis of Driving Gearbox for High Speed EMU based on Workbench
Published 2017-01-01“…Due to the current situation of Chinese high-speed motor train unit(EMU) gearbox monopolized by foreign for a long time,and facing the gearbox body cracking problems frequently,the aluminum alloy box body of high-speed EMU is redesigned.By using the three-dimensional modeling software Solid Works,the box body model is created,and the load calculation of the designed box body under two conditions of short circuit and startup is carried out separately.By using the finite element analysis software Workbench,the strength is analyzed,then the simulation test results verify the designed box body won’t appear plastic deformation and crack in both working conditions.According to the analysis results evaluated by TJ / JW064-2015 in startup conditions,to testify that the designed housing meet the requirement of train operation.The research has important reference value to the independent research and development of the high speed Emu gearbox.…”
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9105
ADAPTIVE GROWTH TECHNIQUE OF TRUSS STRUCTURE BASED ON MMA
Published 2019-01-01“…Against with the lack of adaptive growth technique, a new method that is moving asymptotes(MMA) is suggested by this article and the adaptive growth technique is applied to truss structure topology optimization design. The design of typical truss structures with single constraint and multiple constraints is discussed, and the multi load cases are studied. …”
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9106
RESEARCH ON SEAT VERTICAL IMPАСT PULSE ENVELOPE BASED ON OCCUPANT LUMBAR INJURY INDEX
Published 2024-02-01“…After calibration, in order to simulate the vertical drop conditions, several impact pulses with different peaks and widths were designed, calculated and tested on 80° fixture condition, and obtained the seat vertical impact pulse envelope meeting the occupant lumbar injury index, which provide reference for the design of aireraft fuselage structure. …”
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9107
Multi-objective Reliability Optimization of NGW Type Reducer of the Road-rail Vehicle
Published 2017-01-01“…Aiming at the problem of multi-objective reliability optimization for the reducer of road-rail vehicle,firstly,it must be ensured that the electric wheel planetary gear reducer is in good working order and loading conditions meet the requirements of transmission.By applying the reliability theory and optimization design technology,the reducer weight reduction,materials saving,low cost can be realized safety and reliability is improved.The MATLAB optimization toolbox is used to solve the problem of the optimization of reducer.Taking the volume and contact ratio as multi-objective optimization function,then the multi-objective optimization problem is transformed into single-objective problem to solve by the linear weighted method.The mathematical model is established by using the safety factor method and other constraints.By using Fmincon function,the optimizing calculation and analysis are carried out,the optimal solution is got,which makes the optimization design parameters more reasonable than the original design parameters.Consequently,the results show that the working performance of the electric wheel of the road-rail vehicle is improved.…”
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9108
Reliability Calibration of Tower Members in Transmission Line System Crossing High-Speed Railway
Published 2022-01-01“…Due to the rapid development of high-speed railway in China, transmission line systems across the high-speed railway system have become more prevalent in recent years, which highlights the importance of reliable design for systems. The design is generally based on the structural reliability theory, in which the determination of target reliability level is the key. …”
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9109
Thermal Analysis of Si/GaAs Bonding Wafers and Mitigation Strategies of the Bonding Stresses
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9110
RESEARCH ON PARAMETRIC ANALYSIS AND MULTI-OBJECTIVE OPTIMIZATION OF CYLINDRICAL PRESSURE STRUCTURE
Published 2021-01-01“…In order to improve the design efficiency and performance of the cylindrical pressure structure,strength and stability analysis methods were determined,the initial scheme was analyzed. the second development of Abaqus software was carried out by using Python language,Abaqus was integrated with i Sight software,the parametric analysis flow of pressure structure was designed,could realize automatic modeling and analysis of cylindrical pressure structure. the most Latin hypercube method was used to selectting the sample points,the sensitivity analysis of the design variables were carried out,The comparison of the fitting accuracy shown that the response surface model had the highest accuracy,the approximate model of the cylindrical pressure structure based on the fourth-order response surface was obtained. the multi-objective optimization model was established,The second generation of non dominated sorting genetic algorithm was used to solving the multi-objective optimization problem,the results shown that the weight of the optimization scheme was reduced,while the ultimate strength was greatly improved,improved the performance of the cylindrical pressure structure.…”
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9111
RESPONSE ANALYSIS OF SHEARER BEVELING FEEDING PROCESS POWER
Published 2018-01-01“…It provides a theoretical basis for the stability,reliability design and dynamic analysis of the whole machine and its components,and it has a certain guiding role for the active design of the shearer.…”
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9112
Nonlinear Adaptive Equivalent Control Based on Interconnection Subsystems for Air-Breathing Hypersonic Vehicles
Published 2013-01-01“…For the velocity loop, the dynamic inversion controller is designed. The adaptive approach is used to identify the uncertain aerodynamic parameters. …”
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9113
Review of corpus tools for vocabulary teaching and learning
Published 2021-08-01“…CBLP blends corpus linguistics with classroom pedagogy. In addition, four design principles are illustrated to help teachers design effective corpus-based lessons. …”
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9114
The Dialogical, The Ecological and Beyond
Published 2021-06-01“…In this article Jon Goodbun and Ben Sweeting engage in a conversation about design and its complex relation to communication. …”
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9115
Fracture-Safe and Fatigue-Reliable Structures
Published 2014-10-01“…This paper considers several examples of such difficulties in the context of the development of fatigue design philosophies and the success or otherwise of learning from the history of failures.…”
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9116
Enhancing collapse performance of vulnerable RC frames through steel Bracing: A FEMA P695 methodology study
Published 2025-01-01“…Insights into retrofitting vulnerable archetypes and seismic design parameters are obtained, leading to practical solutions and enhanced safety for old-designed building structures in seismic events.…”
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9117
RESEARCH ON TEST METHOD OF FUSELAGE PANEL SUBJECTED TO SHEAR LOAD
Published 2017-01-01“…A test panel and a set of fixtures were designed and manufactured,and validation test were conducted. …”
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9118
Fonder le projet de paysage sur le sol urbain
Published 2022-12-01“…The soil becomes the starting point, leading landscape architects to collaborate with soil specialists throughout the design process to innovate in the reuse of the existing soil.…”
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9119
Auricular bioelectronic devices for health, medicine, and human-computer interfaces
Published 2025-02-01“…Together, these advances have enabled the design and engineering of bioelectronic devices with integrated multimodal sensing and stimulation capabilities to be worn nearly anywhere on the body. …”
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9120
Low-loss on-chip superconducting microwave circulator assisted by shunting capacitors
Published 2025-01-01“…In our previous work, we implemented such a circulator using a three-Josephson-junction loop that exhibited unambiguous nonreciprocity and signal circulation, but required junction energies to be within 1% of design values. This tolerance is tighter than standard junction fabrication methods provide, so we propose and demonstrate a design improvement that relaxes the required junction fabrication precision, allowing for higher device performance and fabrication yield. …”
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