The overall performance of large aerospace vehicles is determined to a great extent by the wings structure of aircrafts. In order to prevent wings vibration due to external interference, schemes of combined fuzzy-PID and fuzzy adapt PID controllers are proposed based on flexible beam structure. The MATLAB simulation model demonstrates that the proposed controllers not only has good dynamic characteristics, but also reduce the vibration effect greatly caused by external disturbance, which lay the foundation for the active vibration control of aircraft wings.

The effects of four types of mulching models (surface tillage with straw mulching, no-tillage with straw mulching on furrow, no-tillage with stubble mulching, and no-tillage with straw mulching on ridge and furrow) on the root spatial distribution and the relationship between the roots and shoots of maize were investigated using stratified digging methods, with maize as the test crop. The distribution of maize roots was cone shaped and gradually extended from 20 cm to 40 cm below the surface during the elongation stage. Under the different mulch tillage models, the effects on maize root growth were positive. The mulching measures significantly affected the control and support of the early and later stages of maize growth. The maize significantly differed in the root weight density (P=0.026<0.05) and the root surface area (P =0.005<0.01) with different mulching measures. No-tillage with straw mulching on the ridge and furrow was the only mulching model in which the growth of the roots and leaves of maize was limited. However, the other maize growth measures were better than conventional tillage. In addition, no-tillage with straw mulching on the ridge and furrow had an advantage in terms of the growth of the surface roots, while stubble mulching and strip mulching had advantages in terms of the growth of deep roots and radial roots, respectively. Surface tillage with straw mulching was an ideal cultivation method for the cold and arid regions of North China and had significant advantages in terms of the growth of the root weight, root surface area and root-shoot ratio.

The experiments were carried out in the paper to investigate the effect of adding hydrogen in titanium alloy TC4 on its machinability. The hydrogen contents selected were 0, 0.25%, 0.49%, 0.63%, 0.89% and 1.32%, respectively. Experiments with varing hydrogen contents and cutting conditions concurrently. Experimental results showed that the cutting force of the titanium alloy can be obviously reduced and the surface roughness can be improved by adding appropriate hydrogen in the material. In the given cutting condition, the titanium alloy TC4 with 0.49% hydrogen content showed better machinability.

With the rapid advance of modern corporate finance information and the transformation of financial management concepts, the information provided by traditional function-driven financial processes can not meet the needs of stakeholders. The continuous development of cloud computing technology must trigger innovation in enterprise financial information and it also will promote the process of corporate financial processes construction. The paper aims to explore the value, resistance and implementation path of cloud-based financial processes construction.

On the analysis of the disadvantage of traditional Failure Mode and Effect Analysis (FMEA), an improved FMEA based on fuzzy set theory and Analytical Hierarchy Process (AHP) is proposed. In this method, the fuzzy language set and the fuzzy number of Severity (S), Occurrence (O) and Detection (D) are firstly set up, then failure modes are evaluated, and finally the weights of S, O and D are determined by AHP. So, risk priorities of the failure modes can be determined by calculating the modified Risk Priority Number (RPN). Improved FMEA could provide a method for the company to evaluate the reliability analysis of products.