It also seeks to establish the knowledge of western cannon technology in these texts based on the premise of Western cannon technology of the time.

In order to win the battle between the Ming Dynasty and Manzhou,Xu Guang-qi,a famous scholar-official at the end of the Ming Dynasty,got the deep influences from Matteo Ricci and several Jesuits from the West,succeeded in promoting the introduction of western artillery from Macao with the support of the Portuguese there.

A Measuring Method for the Taper of Bore;

Based on laser optical triangulation displacement inspecting technology and grating displacement inspecting technology,an optoelectronic non-contact measuring method and a laser-scanned optoelectronic measuring system were presented for measuring the taper of the 30 mm bore.

Design of parallelism measuring system for artillery axes;

Analysis of stealth characteristics of artillery shrapnels;

Application of Neural Network in Evaluation for Artillery Effectiveness;

Hydraulic Buffer Reliability of Gun Based on GO Methods;

Optimization of Firing Stability for Gun System Based on Combination of SQP and Virtual Prototyping;

The Process Analysis on The Opening Block andEjecting Container Based on ADAMS Gun;

Electronically controlled hydrostatic pressure driving system for self-walking heavy cannon;

7415 grease for cannons is developed to meet the lubrication requirement of sliding parts of firing mechanism on cannons.

The author discusses the technology and standard of cannon casting in Ming-Qing dynasties(1368—1911)based on the inspection of the ancient cannons left over by those cen- turies on the Fujian coast.