Design of high-intensity ultrasonic sound intensity measurement based on narrow pulse method
The research on high-intensity ultrasonic has taken the delectable achievement in the treatment of cancer and the detection of internal structure for the dam. The rapid and accurate sound intensity measurement of high-intensity ultrasonic transducer is necessary for its application and generalization. The paper introduces the principle of sound intensity measurement, proposes measurement scheme on the basis of the narrow pulse method and also discusses the design of hardware circuit and software.
Recent advances in research of dam CT techniques
Since dam-CT can monitor the dam′s deep interior fast and nondestructively,the technique has been receiving increasing emphasis.This paper introduces the techniques of dam-CT that are based on de-tection of the distribution of elastic waves,electromagnetic waves and electric resistance.In particular,re-search advances in the relatively mature area of acoustic-wave dam CT is reviewed with respect of its feasibility,the working principles,hardware equipment and software techniques.Key problems and the de-velopment trend of the acoustic-wave dam CT research are discussed.
Metallurgical Process Engineering
The "material of choice" - steel.- Uprising of China's steel industry.- Process manufacturing industry and process engineering.- Engineering science in steel manufacturing process.- Analysis and integration of metallurgical manufacturing process.- Multi-dimensional mass flow control for metallurgical manufacturing process.- Time factors in steel manufacturing process.-Operating dynamics in the production process of steel plant.- Structure and mode of steel plant.- Steel plant and environment.