共搜索到3311条信息,每页显示10条信息,共332页。用时:0小时0分0秒150毫秒
improved computation accuracy for mass concrete temperature fi eld. But the properties of the activation energy and the gas constant(E a /R) have not been well studied yet. From the latest experiments......
accuracy, as proposed in this paper, should be applied. Piecewise relation models of magnetic permeability and magnetization angle are significant for improving the accuracy of electromagnetic......
function which is independent of n and a relationship between W/(h 3 σ r S) and E /(σ r S) at great depth ratio. By using the results of finite element simulation,the efficiency and accuracy of the improved method have been proved,and it showed that the accuracy of the improved method is much better than the former method.关键词:......
of hydrogen sensor with high accuracy. The transient curves of hydrogen permeation under a given charging condition were employed to evaluate the performance of two types of hydrogen sensors. The relative deviation of the hydrogen concentration detected with two types of sensors under the same condition varied from 3.0% to 13%. The accuracy, response time, reproducibility, and installation were......
behavior during AM. By using the proposed relaxation model, the prediction accuracy is significantly improved due to the recovery of inelastic strain during multilayer deposition. The results... a prominent impact when depositing multiple layers. The proposed model can enhance modeling accuracy both in AM and in multilayer welding.关键词:......
with the traditional control, the proposed control strategy gets better temperature tracing accuracy and exhibits some energy saving feature. The simulation results show that the performance of the furnace......
and discussed.According to the results of SME-EDS analysis and ICP detection,the factors affecting the forming accuracy,strength,surface quality and reliability of CaSO4·χH2O crystalwere found......
in this proposed model.The results show that the algorithm of M-T prediction scheme with high accuracy is relatively simple.关键词:......
and mechanical performance of metallic glasses(MGs)under a proposed rapid forming approach. Through the unique ultrasonic-assisted micro injection method, micro MGs parts with fine dimensional accuracy......
in a relatively short period of time, using high-frequency observations. The results show that three-dimensional coordinates with a height accuracy better than 1 cm, horizontal accuracy better than 2-4 cm can be achieved through only 15-30 s continuous observation by 20 Hz high- frequency and effectively improve the measurement accuracy and efficiency of RTK, fully satisfying the high-speed and high......