Diesel engine for automobile mainly adopts diesel particulate filter (DPF) method to deal with the exhaust particulate. In order to eliminate the particulate in the filter and complete DPF regeneration, the burner needs to be set at the entrance of DPF. This paper designs the evaporation-type DPF regenerative burner, and makes the bench and the real vehicle test. The test shows that the burner can complete DPF regeneration well within the working scope of the larger engine.

Selective Catalytic Reduction (SCR) technology is an effective measure to reduce NOxemissions of diesel for commercial vehicles. The purifying effect of Urea-SCR exhaust gas purification device is related to calibration of the parameter of urea control system. Based on MAP diagram , the calibration method of urea spray control system in Urea-SCR system was studied on. Through verifications of ESC and ETC,it is reflected that calibrated MAP diagram can effectively reduce NOxemissions of diesel if used in the control system and emissions could meet the standards of 4th and 5th stage national emission regulation.

On-Board Diagnostics System is an Effective means to control vehicle emissions. With the issuance of increasingly stringent emission standards, On-Board Diagnostics System is constantly developed. The On-Board Diagnostics System was analyzed from two perspectives such as research status and trend. The relative standards of On-Board Diagnostics were highlighted. OBD-III was specifically addressed. Finally, some suggestions about OBD of China were put forward based on the analysis of the research status and trend of OBD at home and abroad.

Colorectal cancer (CRC) is the third most prevalent digestive tract cancer worldwide (9.7%), with a severe morbidity and mortality rate. The major therapeutic medications for CRC today are chemotherapy and targeted monoclonal antibodies, however, they all have drawbacks such as high cost, drug resistance, and substantial immunological adverse effects, and not all patients can benefit from them.

A test methodwas designed to evaluate the purification performance of Diesel exhausts four-effect catalytic purification system which was based on the oxidation catalyst, NOx reduction catalyst and carbon particles combustion catalyst.Then the method was usedto test the purification performance of a four-effect catalytic purification systemconsist of DOC,CDPF andSCR. The results of the test show that, with the use of the four-effect catalytic purification system, the combustion T50of the soot can reach 330 ~ 400 °C which shows that the combustion of the soot has been catalyzed effectively.The rate of the deoxidized NO can achieve 90% abovewhich shows thatthe selective deoxidation of the NOx has been catalyzed effectively.