Dunaliella salina is a unicellular green alga and possesses two types of photolyase: Class II cyclobutane pyrimidine dimers (CPD) photolyase and (6-4) photolyase. The gene of D. salina (6-4) photolyase is the first one found in unicellular organisms. CPD photolyases have been extensively studied but (6-4) photolyases are less understood. Because of the data observed in this study, D. salina (6-4) photolyase is insensitive to high salinity; whether it can tolerate a higher level of salinity than other (6-4) photolyases needs to be studied further. However, evidence is provided that (6-4) photolyases might be highly conserved among different species, not only in the sequence identity but also in the photorepair mechanism.

This paper introduces the research and design of a certain type of UAV optical electronics sensors battle operation training laboratory based on VR technology. It expatiates the function and structure of the lab. The lab can solve the critical problems faced by present real UAV equipment battle education training and improve training effect distinctly. The lab also can help cadets to inquire and learn more knowledge and skill effectively.

According to the characteristic of synchronizer signal, multi-channel synchronizer signal generator is designed based on USB and C8051F340. Software implementation is given using Aitken interpolation algorithm. It greatly reduces the cost of development and effectively improves the precision. Meanwhile, using the USBXPress development kit for PC and firmware development shortens the development cycle. Compared with the special numeric synchronizer converter, the price of designed Synchronizer signal generator cheap 100 times, the full range error less than 0.04º and the accuracy improved 25 times. At the same time, it has work stability, strong anti-interference and high practical value.

The scheme adopts computer testing technology, virtual instrument and virtual system technology to realize the automatic detection for heading and attitude signal conversion equipment of aircraft. It greatly improves the test efficiency. Test time was reduced from 30 minutes to 3 minutes. Based on wavelet analysis and hierarchical decision, program module of connected line identification is design and it improves the reliability of program running. Noisy signals are de-noised by automatic zoom function of wavelet transform and that solves the interference problems of AC power supply.

Control technology of aeroengine has made remarkable development in recent 20 years. In order to meet the needs of high performance, high precision propulsion system control, based on computer technology, microelectronic technology and control theory, the control technology is from traditional hydraulic mechanical control to digital electronic control. Digital electronic control has been a huge success from limited function to the full authority control and from the development test to practical application. In the future it will have more widely application and development in the field of military and civilian aircraft control. This paper mainly discusses the full authority digital electronic control. It shows that the digital electronic engine control has wide application prospect and high application value.