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An improved TPD-IR technique was developed recently. By which means, acid properties of Brønsted acid sites on HY zeolite and SAPO-34 zeolite were studied by an advanced TPD-IR technique with ammonia as probe molecule. Desorption activation energy (DAE) of the probe molecule adsorbed on zeolite was used as a measure of the acid strength. The result indicates the Brønsted acid sites of HY Zeolite or SAPO-34 zeolite were divided into two types with the strength of DAE of ammonia 43.4KJ/mol, 24.4KJ/mol and 33.2KJ/mol, 20.5KJ/mol. It is concluded that HY zeolite has the stronger Brønsted acid sites than that of SAPO-34 zeolite.

Acupuncture is a complementary treatment method, while its therapeutic effect is tightly related to physicians manipulation skill. Lifting and thrusting manipulation is an important acupuncture procedure which could enhance the outcome, e.g. the arrival of Qi. Traditional methods cannot quantitatively measure acupuncture manipulations which make difficult in teaching and studying. In this paper, we proposed a high precision and quantitative monitoring system based on commercial haptic device. Our system can obtain quantitative position, velocity and force information and visualize the lifting and thrusting manipulation in real time. As a simple but accurate recording solution, it would be useful in accumulation and investigation of experts' experiences.

This article focuses on a cracking steel crane girder of one factory, on the basis of extensive investigation and research on the fatigue damage of cracking steel crane girder at home and abroad. Sectional stress is redistribution and the stress concentration phenomenon of the crack tip has been alleviated. After reinforcement, the local stiffness of the upper flange and web greatly increases, The results show that it can extend the fatigue remaining service life of fatigue cracking of the steel crane girder by increasing the effective cross section area and stiffness, and it is a good guide on reinforcement and maintenance of actual industrial plant cracking steel crane girder.